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paulbsd:xorm
paulbsd:1.5.5
paulbsd:1.5.4
paulbsd:1.5.3
paulbsd:1.5.2
paulbsd:1.5.1
paulbsd:1.5.0
paulbsd:1.4.6
paulbsd:1.4.5
paulbsd:1.4.4
paulbsd:1.4.3
paulbsd:1.4.2
paulbsd:1.4.1
paulbsd:1.4.0
paulbsd:1.3.5
paulbsd:1.3.4
paulbsd:1.3.3
paulbsd:1.3.2
paulbsd:1.3.1
paulbsd:1.3.0
paulbsd:1.2.2
paulbsd:1.2.1
paulbsd:1.2.0
paulbsd:1.1.1
paulbsd:1.1.0
paulbsd:1.0.2
paulbsd:1.0.1
paulbsd:1.0.0
..
compare: paulbsd:1.5.3
Branches Tags
paulbsd:develop
paulbsd:master
paulbsd:xorm
paulbsd:1.5.5
paulbsd:1.5.4
paulbsd:1.5.3
paulbsd:1.5.2
paulbsd:1.5.1
paulbsd:1.5.0
paulbsd:1.4.6
paulbsd:1.4.5
paulbsd:1.4.4
paulbsd:1.4.3
paulbsd:1.4.2
paulbsd:1.4.1
paulbsd:1.4.0
paulbsd:1.3.5
paulbsd:1.3.4
paulbsd:1.3.3
paulbsd:1.3.2
paulbsd:1.3.1
paulbsd:1.3.0
paulbsd:1.2.2
paulbsd:1.2.1
paulbsd:1.2.0
paulbsd:1.1.1
paulbsd:1.1.0
paulbsd:1.0.2
paulbsd:1.0.1
paulbsd:1.0.0

No commits in common. "master" and "1.5.3" have entirely different histories.
master ... 1.5.3

213 changed files with 1218 additions and 292813 deletions
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85
.drone.yml
View File

@ -1,19 +1,14 @@
---
kind: pipeline
type: docker
name: build-linux-amd64
platform:
os: linux
arch: amd64
name: build-linux
steps:
- name: build
image: golang:1.23
- name: build-linux-amd64
image: golang
commands:
- go build -o $PROJECTNAME $GOOPTIONS $SRCFILES
environment:
CGO_ENABLED: 1
GOOS: linux
GOARCH: amd64
GOOPTIONS: -mod=vendor
@ -23,52 +18,11 @@ steps:
event:
exclude:
- tag
- name: release
image: golang:1.23
commands:
- go build -o $PROJECTNAME $GOOPTIONS $SRCFILES
- tar -czvf $PROJECTNAME-$DRONE_TAG-$GOOS-$GOARCH.tar.gz $PROJECTNAME
- echo $PROJECTNAME $DRONE_TAG > VERSION
environment:
CGO_ENABLED: 1
GOOS: linux
GOARCH: amd64
GOOPTIONS: -mod=vendor
SRCFILES: cmd/qrz/*.go
PROJECTNAME: qrz
when:
event:
- tag
- name: publish
image: plugins/gitea-release
settings:
base_url: https://git.paulbsd.com
api_key:
from_secret: gitea_token
files: "*.tar.gz"
title: VERSION
when:
event:
- tag
---
kind: pipeline
type: docker
name: build-linux-arm64
platform:
os: linux
arch: arm64
steps:
- name: build
image: golang:1.23
- name: build-linux-arm64
image: golang
commands:
- go build -o $PROJECTNAME $GOOPTIONS $SRCFILES
environment:
CGO_ENABLED: 1
GOOS: linux
GOARCH: arm64
GOOPTIONS: -mod=vendor
@ -79,14 +33,34 @@ steps:
exclude:
- tag
- name: release
image: golang:1.23
---
kind: pipeline
type: docker
name: gitea-release-linux
steps:
- name: build-linux-amd64
image: golang
commands:
- go build -o $PROJECTNAME $GOOPTIONS $SRCFILES
- tar -czvf $PROJECTNAME-$DRONE_TAG-$GOOS-$GOARCH.tar.gz $PROJECTNAME
- echo $PROJECTNAME $DRONE_TAG > VERSION
environment:
GOOS: linux
GOARCH: amd64
GOOPTIONS: -mod=vendor
SRCFILES: cmd/qrz/*.go
PROJECTNAME: qrz
when:
event:
- tag
- name: build-linux-arm64
image: golang
commands:
- go build -o $PROJECTNAME $GOOPTIONS $SRCFILES
- tar -czvf $PROJECTNAME-$DRONE_TAG-$GOOS-$GOARCH.tar.gz $PROJECTNAME
- echo $PROJECTNAME $DRONE_TAG > VERSION
environment:
CGO_ENABLED: 1
GOOS: linux
GOARCH: arm64
GOOPTIONS: -mod=vendor
@ -95,8 +69,7 @@ steps:
when:
event:
- tag
- name: publish
- name: release
image: plugins/gitea-release
settings:
base_url: https://git.paulbsd.com

4
.gitignore vendored
View File

@ -3,5 +3,7 @@
*.swp
/*.tar.gz
/dist
/packr2
/packrd
/qrz
/db
/main-packr

2
cmd/qrz/qrz.go
View File

@ -7,9 +7,7 @@ import (
"git.paulbsd.com/paulbsd/qrz/src/database"
"git.paulbsd.com/paulbsd/qrz/src/qrz"
"git.paulbsd.com/paulbsd/qrz/src/qrzws"
_ "github.com/go-sql-driver/mysql"
_ "github.com/lib/pq"
_ "github.com/mattn/go-sqlite3"
)
var version string

21
go.mod
View File

@ -1,32 +1,29 @@
module git.paulbsd.com/paulbsd/qrz
go 1.23
go 1.22
require (
github.com/antchfx/htmlquery v1.3.3
github.com/antchfx/xpath v1.3.2 // indirect
github.com/antchfx/htmlquery v1.3.1
github.com/antchfx/xpath v1.3.0 // indirect
github.com/golang/snappy v0.0.4 // indirect
github.com/labstack/echo/v4 v4.12.0
github.com/lib/pq v1.10.9
github.com/mattn/go-colorable v0.1.13 // indirect
github.com/mattn/go-sqlite3 v1.14.24
github.com/mattn/go-sqlite3 v2.0.3+incompatible // indirect
github.com/onsi/ginkgo v1.16.5 // indirect
github.com/onsi/gomega v1.23.0 // indirect
github.com/robfig/cron v1.2.0
golang.org/x/crypto v0.28.0 // indirect
golang.org/x/net v0.30.0
golang.org/x/sys v0.26.0 // indirect
golang.org/x/text v0.19.0 // indirect
golang.org/x/crypto v0.23.0 // indirect
golang.org/x/net v0.25.0
golang.org/x/sys v0.20.0 // indirect
golang.org/x/text v0.15.0 // indirect
gopkg.in/ini.v1 v1.67.0
xorm.io/builder v0.3.13 // indirect
xorm.io/xorm v1.3.9
)
require github.com/go-sql-driver/mysql v1.8.1
require (
filippo.io/edwards25519 v1.1.0 // indirect
github.com/goccy/go-json v0.10.3 // indirect
github.com/goccy/go-json v0.10.2 // indirect
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/labstack/gommon v0.4.2 // indirect

34
go.sum
View File

@ -1,7 +1,5 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
gitea.com/xorm/sqlfiddle v0.0.0-20180821085327-62ce714f951a h1:lSA0F4e9A2NcQSqGqTOXqu2aRi/XEQxDCBwM8yJtE6s=
gitea.com/xorm/sqlfiddle v0.0.0-20180821085327-62ce714f951a/go.mod h1:EXuID2Zs0pAQhH8yz+DNjUbjppKQzKFAn28TMYPB6IU=
gitee.com/travelliu/dm v1.8.11192/go.mod h1:DHTzyhCrM843x9VdKVbZ+GKXGRbKM2sJ4LxihRxShkE=
@ -23,10 +21,6 @@ github.com/antchfx/htmlquery v1.3.0 h1:5I5yNFOVI+egyia5F2s/5Do2nFWxJz41Tr3DyfKD2
github.com/antchfx/htmlquery v1.3.0/go.mod h1:zKPDVTMhfOmcwxheXUsx4rKJy8KEY/PU6eXr/2SebQ8=
github.com/antchfx/htmlquery v1.3.1 h1:wm0LxjLMsZhRHfQKKZscDf2COyH4vDYA3wyH+qZ+Ylc=
github.com/antchfx/htmlquery v1.3.1/go.mod h1:PTj+f1V2zksPlwNt7uVvZPsxpKNa7mlVliCRxLX6Nx8=
github.com/antchfx/htmlquery v1.3.2 h1:85YdttVkR1rAY+Oiv/nKI4FCimID+NXhDn82kz3mEvs=
github.com/antchfx/htmlquery v1.3.2/go.mod h1:1mbkcEgEarAokJiWhTfr4hR06w/q2ZZjnYLrDt6CTUk=
github.com/antchfx/htmlquery v1.3.3 h1:x6tVzrRhVNfECDaVxnZi1mEGrQg3mjE/rxbH2Pe6dNE=
github.com/antchfx/htmlquery v1.3.3/go.mod h1:WeU3N7/rL6mb6dCwtE30dURBnBieKDC/fR8t6X+cKjU=
github.com/antchfx/xpath v1.2.3/go.mod h1:i54GszH55fYfBmoZXapTHN8T8tkcHfRgLyVwwqzXNcs=
github.com/antchfx/xpath v1.2.4 h1:dW1HB/JxKvGtJ9WyVGJ0sIoEcqftV3SqIstujI+B9XY=
github.com/antchfx/xpath v1.2.4/go.mod h1:i54GszH55fYfBmoZXapTHN8T8tkcHfRgLyVwwqzXNcs=
@ -34,10 +28,6 @@ github.com/antchfx/xpath v1.2.5 h1:hqZ+wtQ+KIOV/S3bGZcIhpgYC26um2bZYP2KVGcR7VY=
github.com/antchfx/xpath v1.2.5/go.mod h1:i54GszH55fYfBmoZXapTHN8T8tkcHfRgLyVwwqzXNcs=
github.com/antchfx/xpath v1.3.0 h1:nTMlzGAK3IJ0bPpME2urTuFL76o4A96iYvoKFHRXJgc=
github.com/antchfx/xpath v1.3.0/go.mod h1:i54GszH55fYfBmoZXapTHN8T8tkcHfRgLyVwwqzXNcs=
github.com/antchfx/xpath v1.3.1 h1:PNbFuUqHwWl0xRjvUPjJ95Agbmdj2uzzIwmQKgu4oCk=
github.com/antchfx/xpath v1.3.1/go.mod h1:i54GszH55fYfBmoZXapTHN8T8tkcHfRgLyVwwqzXNcs=
github.com/antchfx/xpath v1.3.2 h1:LNjzlsSjinu3bQpw9hWMY9ocB80oLOWuQqFvO6xt51U=
github.com/antchfx/xpath v1.3.2/go.mod h1:i54GszH55fYfBmoZXapTHN8T8tkcHfRgLyVwwqzXNcs=
github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
@ -104,8 +94,6 @@ github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG
github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE=
github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
github.com/go-sql-driver/mysql v1.7.0/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
github.com/go-sql-driver/mysql v1.8.1 h1:LedoTUt/eveggdHS9qUFC1EFSa8bU2+1pZjSRpvNJ1Y=
github.com/go-sql-driver/mysql v1.8.1/go.mod h1:wEBSXgmK//2ZFJyE+qWnIsVGmvmEKlqwuVSjsCm7DZg=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE=
github.com/goccy/go-json v0.8.1/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
@ -113,8 +101,6 @@ github.com/goccy/go-json v0.10.1 h1:lEs5Ob+oOG/Ze199njvzHbhn6p9T+h64F5hRj69iTTo=
github.com/goccy/go-json v0.10.1/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
github.com/goccy/go-json v0.10.3 h1:KZ5WoDbxAIgm2HNbYckL0se1fHD6rz5j4ywS6ebzDqA=
github.com/goccy/go-json v0.10.3/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
github.com/gofrs/uuid v3.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
github.com/gofrs/uuid v4.0.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
github.com/gogo/googleapis v1.1.0/go.mod h1:gf4bu3Q80BeJ6H1S1vYPm8/ELATdvryBaNFGgqEef3s=
@ -321,10 +307,6 @@ github.com/mattn/go-runewidth v0.0.2/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzp
github.com/mattn/go-sqlite3 v1.14.9/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
github.com/mattn/go-sqlite3 v1.14.15/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
github.com/mattn/go-sqlite3 v1.14.16/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
github.com/mattn/go-sqlite3 v1.14.22 h1:2gZY6PC6kBnID23Tichd1K+Z0oS6nE/XwU+Vz/5o4kU=
github.com/mattn/go-sqlite3 v1.14.22/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
github.com/mattn/go-sqlite3 v1.14.24 h1:tpSp2G2KyMnnQu99ngJ47EIkWVmliIizyZBfPrBWDRM=
github.com/mattn/go-sqlite3 v1.14.24/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
github.com/mattn/go-sqlite3 v2.0.3+incompatible h1:gXHsfypPkaMZrKbD5209QV9jbUTJKjyR5WD3HYQSd+U=
github.com/mattn/go-sqlite3 v2.0.3+incompatible/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
@ -522,10 +504,6 @@ golang.org/x/crypto v0.22.0 h1:g1v0xeRhjcugydODzvb3mEM9SQ0HGp9s/nh3COQ/C30=
golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
golang.org/x/crypto v0.26.0 h1:RrRspgV4mU+YwB4FYnuBoKsUapNIL5cohGAmSH3azsw=
golang.org/x/crypto v0.26.0/go.mod h1:GY7jblb9wI+FOo5y8/S2oY4zWP07AkOJ4+jxCqdqn54=
golang.org/x/crypto v0.28.0 h1:GBDwsMXVQi34v5CCYUm2jkJvu4cbtru2U4TN2PSyQnw=
golang.org/x/crypto v0.28.0/go.mod h1:rmgy+3RHxRZMyY0jjAJShp2zgEdOqj2AO7U0pYmeQ7U=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
@ -580,10 +558,6 @@ golang.org/x/net v0.24.0 h1:1PcaxkF854Fu3+lvBIx5SYn9wRlBzzcnHZSiaFFAb0w=
golang.org/x/net v0.24.0/go.mod h1:2Q7sJY5mzlzWjKtYUEXSlBWCdyaioyXzRB2RtU8KVE8=
golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
golang.org/x/net v0.28.0 h1:a9JDOJc5GMUJ0+UDqmLT86WiEy7iWyIhz8gz8E4e5hE=
golang.org/x/net v0.28.0/go.mod h1:yqtgsTWOOnlGLG9GFRrK3++bGOUEkNBoHZc8MEDWPNg=
golang.org/x/net v0.30.0 h1:AcW1SDZMkb8IpzCdQUaIq2sP4sZ4zw+55h6ynffypl4=
golang.org/x/net v0.30.0/go.mod h1:2wGyMJ5iFasEhkwi13ChkO/t1ECNC4X4eBKkVFyYFlU=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -654,10 +628,6 @@ golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg=
golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
@ -685,10 +655,6 @@ golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
golang.org/x/text v0.17.0 h1:XtiM5bkSOt+ewxlOE/aE/AKEHibwj/6gvWMl9Rsh0Qc=
golang.org/x/text v0.17.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

2
src/database/main.go
View File

@ -15,8 +15,6 @@ import (
func Initialize(config *config.Config) (err error) {
var connstr string
switch config.DbType {
case "sqlite3":
connstr = fmt.Sprintf("%s", config.DbName)
case "mysql":
connstr = fmt.Sprintf("%s:%s@%s/%s",
config.DbUsername,

4
src/qrz/main.go
View File

@ -262,9 +262,9 @@ func ToSlice(qrz Qrz) (out []string) {
type Qrz struct {
ID int `db:"id" xorm:"pk autoincr"`
QRZ string `db:"qrz" xorm:"index notnull"`
DMRID string `db:"dmrid" xorm:"index notnull"`
DMRID string `db:"dmrid" xorm:"notnull"`
Name string `db:"name" xorm:"index notnull"`
Address string `db:"address" xorm:"index notnull"`
Address string `db:"address" xorm:"notnull"`
City string `db:"city" xorm:"index notnull"`
Zipcode string `db:"zipcode" xorm:"index varchar(5) notnull"`
Dept string `db:"dept" xorm:"index notnull"`

13
src/qrzws/main.go
View File

@ -223,20 +223,9 @@ func SetLimit(config config.Config, qrzdt *QrzDatatableInput) (limit int, offset
func SetSearchLike(config config.Config, qrzdt *QrzDatatableInput) (searchstmt string, err error) {
var searchstmtslice []string
if len(qrzdt.Columns) > 0 {
var searchstr string
switch config.DbType {
case "sqlite3":
searchstr = "%s LIKE '%s%%'"
case "mysql":
searchstr = "%s LIKE '%s%%'"
case "postgresql":
searchstr = "%s ~* '%s'"
default:
searchstr = "%s ~* '%s'"
}
for id, i := range qrzdt.Columns {
searchstmtslice = append(searchstmtslice,
fmt.Sprintf(searchstr, i.Name, qrzdt.Search.Value))
fmt.Sprintf("%s ~* '%s'", i.Name, qrzdt.Search.Value))
if id < len(qrzdt.Columns)-1 {
searchstmtslice = append(searchstmtslice, "OR")
}

27
vendor/filippo.io/edwards25519/LICENSE generated vendored
View File

@ -1,27 +0,0 @@
Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

14
vendor/filippo.io/edwards25519/README.md generated vendored
View File

@ -1,14 +0,0 @@
# filippo.io/edwards25519
```
import "filippo.io/edwards25519"
```
This library implements the edwards25519 elliptic curve, exposing the necessary APIs to build a wide array of higher-level primitives.
Read the docs at [pkg.go.dev/filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519).
The code is originally derived from Adam Langley's internal implementation in the Go standard library, and includes George Tankersley's [performance improvements](https://golang.org/cl/71950). It was then further developed by Henry de Valence for use in ristretto255, and was finally [merged back into the Go standard library](https://golang.org/cl/276272) as of Go 1.17. It now tracks the upstream codebase and extends it with additional functionality.
Most users don't need this package, and should instead use `crypto/ed25519` for signatures, `golang.org/x/crypto/curve25519` for Diffie-Hellman, or `github.com/gtank/ristretto255` for prime order group logic. However, for anyone currently using a fork of `crypto/internal/edwards25519`/`crypto/ed25519/internal/edwards25519` or `github.com/agl/edwards25519`, this package should be a safer, faster, and more powerful alternative.
Since this package is meant to curb proliferation of edwards25519 implementations in the Go ecosystem, it welcomes requests for new APIs or reviewable performance improvements.

20
vendor/filippo.io/edwards25519/doc.go generated vendored
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@ -1,20 +0,0 @@
// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package edwards25519 implements group logic for the twisted Edwards curve
//
// -x^2 + y^2 = 1 + -(121665/121666)*x^2*y^2
//
// This is better known as the Edwards curve equivalent to Curve25519, and is
// the curve used by the Ed25519 signature scheme.
//
// Most users don't need this package, and should instead use crypto/ed25519 for
// signatures, golang.org/x/crypto/curve25519 for Diffie-Hellman, or
// github.com/gtank/ristretto255 for prime order group logic.
//
// However, developers who do need to interact with low-level edwards25519
// operations can use this package, which is an extended version of
// crypto/internal/edwards25519 from the standard library repackaged as
// an importable module.
package edwards25519

427
vendor/filippo.io/edwards25519/edwards25519.go generated vendored
View File

@ -1,427 +0,0 @@
// Copyright (c) 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
import (
"errors"
"filippo.io/edwards25519/field"
)
// Point types.
type projP1xP1 struct {
X, Y, Z, T field.Element
}
type projP2 struct {
X, Y, Z field.Element
}
// Point represents a point on the edwards25519 curve.
//
// This type works similarly to math/big.Int, and all arguments and receivers
// are allowed to alias.
//
// The zero value is NOT valid, and it may be used only as a receiver.
type Point struct {
// Make the type not comparable (i.e. used with == or as a map key), as
// equivalent points can be represented by different Go values.
_ incomparable
// The point is internally represented in extended coordinates (X, Y, Z, T)
// where x = X/Z, y = Y/Z, and xy = T/Z per https://eprint.iacr.org/2008/522.
x, y, z, t field.Element
}
type incomparable [0]func()
func checkInitialized(points ...*Point) {
for _, p := range points {
if p.x == (field.Element{}) && p.y == (field.Element{}) {
panic("edwards25519: use of uninitialized Point")
}
}
}
type projCached struct {
YplusX, YminusX, Z, T2d field.Element
}
type affineCached struct {
YplusX, YminusX, T2d field.Element
}
// Constructors.
func (v *projP2) Zero() *projP2 {
v.X.Zero()
v.Y.One()
v.Z.One()
return v
}
// identity is the point at infinity.
var identity, _ = new(Point).SetBytes([]byte{
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})
// NewIdentityPoint returns a new Point set to the identity.
func NewIdentityPoint() *Point {
return new(Point).Set(identity)
}
// generator is the canonical curve basepoint. See TestGenerator for the
// correspondence of this encoding with the values in RFC 8032.
var generator, _ = new(Point).SetBytes([]byte{
0x58, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66})
// NewGeneratorPoint returns a new Point set to the canonical generator.
func NewGeneratorPoint() *Point {
return new(Point).Set(generator)
}
func (v *projCached) Zero() *projCached {
v.YplusX.One()
v.YminusX.One()
v.Z.One()
v.T2d.Zero()
return v
}
func (v *affineCached) Zero() *affineCached {
v.YplusX.One()
v.YminusX.One()
v.T2d.Zero()
return v
}
// Assignments.
// Set sets v = u, and returns v.
func (v *Point) Set(u *Point) *Point {
*v = *u
return v
}
// Encoding.
// Bytes returns the canonical 32-byte encoding of v, according to RFC 8032,
// Section 5.1.2.
func (v *Point) Bytes() []byte {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap.
var buf [32]byte
return v.bytes(&buf)
}
func (v *Point) bytes(buf *[32]byte) []byte {
checkInitialized(v)
var zInv, x, y field.Element
zInv.Invert(&v.z) // zInv = 1 / Z
x.Multiply(&v.x, &zInv) // x = X / Z
y.Multiply(&v.y, &zInv) // y = Y / Z
out := copyFieldElement(buf, &y)
out[31] |= byte(x.IsNegative() << 7)
return out
}
var feOne = new(field.Element).One()
// SetBytes sets v = x, where x is a 32-byte encoding of v. If x does not
// represent a valid point on the curve, SetBytes returns nil and an error and
// the receiver is unchanged. Otherwise, SetBytes returns v.
//
// Note that SetBytes accepts all non-canonical encodings of valid points.
// That is, it follows decoding rules that match most implementations in
// the ecosystem rather than RFC 8032.
func (v *Point) SetBytes(x []byte) (*Point, error) {
// Specifically, the non-canonical encodings that are accepted are
// 1) the ones where the field element is not reduced (see the
// (*field.Element).SetBytes docs) and
// 2) the ones where the x-coordinate is zero and the sign bit is set.
//
// Read more at https://hdevalence.ca/blog/2020-10-04-its-25519am,
// specifically the "Canonical A, R" section.
y, err := new(field.Element).SetBytes(x)
if err != nil {
return nil, errors.New("edwards25519: invalid point encoding length")
}
// -x² + y² = 1 + dx²y²
// x² + dx²y² = x²(dy² + 1) = y² - 1
// x² = (y² - 1) / (dy² + 1)
// u = y² - 1
y2 := new(field.Element).Square(y)
u := new(field.Element).Subtract(y2, feOne)
// v = dy² + 1
vv := new(field.Element).Multiply(y2, d)
vv = vv.Add(vv, feOne)
// x = +√(u/v)
xx, wasSquare := new(field.Element).SqrtRatio(u, vv)
if wasSquare == 0 {
return nil, errors.New("edwards25519: invalid point encoding")
}
// Select the negative square root if the sign bit is set.
xxNeg := new(field.Element).Negate(xx)
xx = xx.Select(xxNeg, xx, int(x[31]>>7))
v.x.Set(xx)
v.y.Set(y)
v.z.One()
v.t.Multiply(xx, y) // xy = T / Z
return v, nil
}
func copyFieldElement(buf *[32]byte, v *field.Element) []byte {
copy(buf[:], v.Bytes())
return buf[:]
}
// Conversions.
func (v *projP2) FromP1xP1(p *projP1xP1) *projP2 {
v.X.Multiply(&p.X, &p.T)
v.Y.Multiply(&p.Y, &p.Z)
v.Z.Multiply(&p.Z, &p.T)
return v
}
func (v *projP2) FromP3(p *Point) *projP2 {
v.X.Set(&p.x)
v.Y.Set(&p.y)
v.Z.Set(&p.z)
return v
}
func (v *Point) fromP1xP1(p *projP1xP1) *Point {
v.x.Multiply(&p.X, &p.T)
v.y.Multiply(&p.Y, &p.Z)
v.z.Multiply(&p.Z, &p.T)
v.t.Multiply(&p.X, &p.Y)
return v
}
func (v *Point) fromP2(p *projP2) *Point {
v.x.Multiply(&p.X, &p.Z)
v.y.Multiply(&p.Y, &p.Z)
v.z.Square(&p.Z)
v.t.Multiply(&p.X, &p.Y)
return v
}
// d is a constant in the curve equation.
var d, _ = new(field.Element).SetBytes([]byte{
0xa3, 0x78, 0x59, 0x13, 0xca, 0x4d, 0xeb, 0x75,
0xab, 0xd8, 0x41, 0x41, 0x4d, 0x0a, 0x70, 0x00,
0x98, 0xe8, 0x79, 0x77, 0x79, 0x40, 0xc7, 0x8c,
0x73, 0xfe, 0x6f, 0x2b, 0xee, 0x6c, 0x03, 0x52})
var d2 = new(field.Element).Add(d, d)
func (v *projCached) FromP3(p *Point) *projCached {
v.YplusX.Add(&p.y, &p.x)
v.YminusX.Subtract(&p.y, &p.x)
v.Z.Set(&p.z)
v.T2d.Multiply(&p.t, d2)
return v
}
func (v *affineCached) FromP3(p *Point) *affineCached {
v.YplusX.Add(&p.y, &p.x)
v.YminusX.Subtract(&p.y, &p.x)
v.T2d.Multiply(&p.t, d2)
var invZ field.Element
invZ.Invert(&p.z)
v.YplusX.Multiply(&v.YplusX, &invZ)
v.YminusX.Multiply(&v.YminusX, &invZ)
v.T2d.Multiply(&v.T2d, &invZ)
return v
}
// (Re)addition and subtraction.
// Add sets v = p + q, and returns v.
func (v *Point) Add(p, q *Point) *Point {
checkInitialized(p, q)
qCached := new(projCached).FromP3(q)
result := new(projP1xP1).Add(p, qCached)
return v.fromP1xP1(result)
}
// Subtract sets v = p - q, and returns v.
func (v *Point) Subtract(p, q *Point) *Point {
checkInitialized(p, q)
qCached := new(projCached).FromP3(q)
result := new(projP1xP1).Sub(p, qCached)
return v.fromP1xP1(result)
}
func (v *projP1xP1) Add(p *Point, q *projCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, ZZ2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YplusX)
MM.Multiply(&YminusX, &q.YminusX)
TT2d.Multiply(&p.t, &q.T2d)
ZZ2.Multiply(&p.z, &q.Z)
ZZ2.Add(&ZZ2, &ZZ2)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Add(&ZZ2, &TT2d)
v.T.Subtract(&ZZ2, &TT2d)
return v
}
func (v *projP1xP1) Sub(p *Point, q *projCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, ZZ2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YminusX) // flipped sign
MM.Multiply(&YminusX, &q.YplusX) // flipped sign
TT2d.Multiply(&p.t, &q.T2d)
ZZ2.Multiply(&p.z, &q.Z)
ZZ2.Add(&ZZ2, &ZZ2)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Subtract(&ZZ2, &TT2d) // flipped sign
v.T.Add(&ZZ2, &TT2d) // flipped sign
return v
}
func (v *projP1xP1) AddAffine(p *Point, q *affineCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, Z2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YplusX)
MM.Multiply(&YminusX, &q.YminusX)
TT2d.Multiply(&p.t, &q.T2d)
Z2.Add(&p.z, &p.z)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Add(&Z2, &TT2d)
v.T.Subtract(&Z2, &TT2d)
return v
}
func (v *projP1xP1) SubAffine(p *Point, q *affineCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, Z2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YminusX) // flipped sign
MM.Multiply(&YminusX, &q.YplusX) // flipped sign
TT2d.Multiply(&p.t, &q.T2d)
Z2.Add(&p.z, &p.z)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Subtract(&Z2, &TT2d) // flipped sign
v.T.Add(&Z2, &TT2d) // flipped sign
return v
}
// Doubling.
func (v *projP1xP1) Double(p *projP2) *projP1xP1 {
var XX, YY, ZZ2, XplusYsq field.Element
XX.Square(&p.X)
YY.Square(&p.Y)
ZZ2.Square(&p.Z)
ZZ2.Add(&ZZ2, &ZZ2)
XplusYsq.Add(&p.X, &p.Y)
XplusYsq.Square(&XplusYsq)
v.Y.Add(&YY, &XX)
v.Z.Subtract(&YY, &XX)
v.X.Subtract(&XplusYsq, &v.Y)
v.T.Subtract(&ZZ2, &v.Z)
return v
}
// Negation.
// Negate sets v = -p, and returns v.
func (v *Point) Negate(p *Point) *Point {
checkInitialized(p)
v.x.Negate(&p.x)
v.y.Set(&p.y)
v.z.Set(&p.z)
v.t.Negate(&p.t)
return v
}
// Equal returns 1 if v is equivalent to u, and 0 otherwise.
func (v *Point) Equal(u *Point) int {
checkInitialized(v, u)
var t1, t2, t3, t4 field.Element
t1.Multiply(&v.x, &u.z)
t2.Multiply(&u.x, &v.z)
t3.Multiply(&v.y, &u.z)
t4.Multiply(&u.y, &v.z)
return t1.Equal(&t2) & t3.Equal(&t4)
}
// Constant-time operations
// Select sets v to a if cond == 1 and to b if cond == 0.
func (v *projCached) Select(a, b *projCached, cond int) *projCached {
v.YplusX.Select(&a.YplusX, &b.YplusX, cond)
v.YminusX.Select(&a.YminusX, &b.YminusX, cond)
v.Z.Select(&a.Z, &b.Z, cond)
v.T2d.Select(&a.T2d, &b.T2d, cond)
return v
}
// Select sets v to a if cond == 1 and to b if cond == 0.
func (v *affineCached) Select(a, b *affineCached, cond int) *affineCached {
v.YplusX.Select(&a.YplusX, &b.YplusX, cond)
v.YminusX.Select(&a.YminusX, &b.YminusX, cond)
v.T2d.Select(&a.T2d, &b.T2d, cond)
return v
}
// CondNeg negates v if cond == 1 and leaves it unchanged if cond == 0.
func (v *projCached) CondNeg(cond int) *projCached {
v.YplusX.Swap(&v.YminusX, cond)
v.T2d.Select(new(field.Element).Negate(&v.T2d), &v.T2d, cond)
return v
}
// CondNeg negates v if cond == 1 and leaves it unchanged if cond == 0.
func (v *affineCached) CondNeg(cond int) *affineCached {
v.YplusX.Swap(&v.YminusX, cond)
v.T2d.Select(new(field.Element).Negate(&v.T2d), &v.T2d, cond)
return v
}

349
vendor/filippo.io/edwards25519/extra.go generated vendored
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@ -1,349 +0,0 @@
// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
// This file contains additional functionality that is not included in the
// upstream crypto/internal/edwards25519 package.
import (
"errors"
"filippo.io/edwards25519/field"
)
// ExtendedCoordinates returns v in extended coordinates (X:Y:Z:T) where
// x = X/Z, y = Y/Z, and xy = T/Z as in https://eprint.iacr.org/2008/522.
func (v *Point) ExtendedCoordinates() (X, Y, Z, T *field.Element) {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap. Don't change the style without making
// sure it doesn't increase the inliner cost.
var e [4]field.Element
X, Y, Z, T = v.extendedCoordinates(&e)
return
}
func (v *Point) extendedCoordinates(e *[4]field.Element) (X, Y, Z, T *field.Element) {
checkInitialized(v)
X = e[0].Set(&v.x)
Y = e[1].Set(&v.y)
Z = e[2].Set(&v.z)
T = e[3].Set(&v.t)
return
}
// SetExtendedCoordinates sets v = (X:Y:Z:T) in extended coordinates where
// x = X/Z, y = Y/Z, and xy = T/Z as in https://eprint.iacr.org/2008/522.
//
// If the coordinates are invalid or don't represent a valid point on the curve,
// SetExtendedCoordinates returns nil and an error and the receiver is
// unchanged. Otherwise, SetExtendedCoordinates returns v.
func (v *Point) SetExtendedCoordinates(X, Y, Z, T *field.Element) (*Point, error) {
if !isOnCurve(X, Y, Z, T) {
return nil, errors.New("edwards25519: invalid point coordinates")
}
v.x.Set(X)
v.y.Set(Y)
v.z.Set(Z)
v.t.Set(T)
return v, nil
}
func isOnCurve(X, Y, Z, T *field.Element) bool {
var lhs, rhs field.Element
XX := new(field.Element).Square(X)
YY := new(field.Element).Square(Y)
ZZ := new(field.Element).Square(Z)
TT := new(field.Element).Square(T)
// -x² + y² = 1 + dx²y²
// -(X/Z)² + (Y/Z)² = 1 + d(T/Z)²
// -X² + Y² = Z² + dT²
lhs.Subtract(YY, XX)
rhs.Multiply(d, TT).Add(&rhs, ZZ)
if lhs.Equal(&rhs) != 1 {
return false
}
// xy = T/Z
// XY/Z² = T/Z
// XY = TZ
lhs.Multiply(X, Y)
rhs.Multiply(T, Z)
return lhs.Equal(&rhs) == 1
}
// BytesMontgomery converts v to a point on the birationally-equivalent
// Curve25519 Montgomery curve, and returns its canonical 32 bytes encoding
// according to RFC 7748.
//
// Note that BytesMontgomery only encodes the u-coordinate, so v and -v encode
// to the same value. If v is the identity point, BytesMontgomery returns 32
// zero bytes, analogously to the X25519 function.
//
// The lack of an inverse operation (such as SetMontgomeryBytes) is deliberate:
// while every valid edwards25519 point has a unique u-coordinate Montgomery
// encoding, X25519 accepts inputs on the quadratic twist, which don't correspond
// to any edwards25519 point, and every other X25519 input corresponds to two
// edwards25519 points.
func (v *Point) BytesMontgomery() []byte {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap.
var buf [32]byte
return v.bytesMontgomery(&buf)
}
func (v *Point) bytesMontgomery(buf *[32]byte) []byte {
checkInitialized(v)
// RFC 7748, Section 4.1 provides the bilinear map to calculate the
// Montgomery u-coordinate
//
// u = (1 + y) / (1 - y)
//
// where y = Y / Z.
var y, recip, u field.Element
y.Multiply(&v.y, y.Invert(&v.z)) // y = Y / Z
recip.Invert(recip.Subtract(feOne, &y)) // r = 1/(1 - y)
u.Multiply(u.Add(feOne, &y), &recip) // u = (1 + y)*r
return copyFieldElement(buf, &u)
}
// MultByCofactor sets v = 8 * p, and returns v.
func (v *Point) MultByCofactor(p *Point) *Point {
checkInitialized(p)
result := projP1xP1{}
pp := (&projP2{}).FromP3(p)
result.Double(pp)
pp.FromP1xP1(&result)
result.Double(pp)
pp.FromP1xP1(&result)
result.Double(pp)
return v.fromP1xP1(&result)
}
// Given k > 0, set s = s**(2*i).
func (s *Scalar) pow2k(k int) {
for i := 0; i < k; i++ {
s.Multiply(s, s)
}
}
// Invert sets s to the inverse of a nonzero scalar v, and returns s.
//
// If t is zero, Invert returns zero.
func (s *Scalar) Invert(t *Scalar) *Scalar {
// Uses a hardcoded sliding window of width 4.
var table [8]Scalar
var tt Scalar
tt.Multiply(t, t)
table[0] = *t
for i := 0; i < 7; i++ {
table[i+1].Multiply(&table[i], &tt)
}
// Now table = [t**1, t**3, t**5, t**7, t**9, t**11, t**13, t**15]
// so t**k = t[k/2] for odd k
// To compute the sliding window digits, use the following Sage script:
// sage: import itertools
// sage: def sliding_window(w,k):
// ....: digits = []
// ....: while k > 0:
// ....: if k % 2 == 1:
// ....: kmod = k % (2**w)
// ....: digits.append(kmod)
// ....: k = k - kmod
// ....: else:
// ....: digits.append(0)
// ....: k = k // 2
// ....: return digits
// Now we can compute s roughly as follows:
// sage: s = 1
// sage: for coeff in reversed(sliding_window(4,l-2)):
// ....: s = s*s
// ....: if coeff > 0 :
// ....: s = s*t**coeff
// This works on one bit at a time, with many runs of zeros.
// The digits can be collapsed into [(count, coeff)] as follows:
// sage: [(len(list(group)),d) for d,group in itertools.groupby(sliding_window(4,l-2))]
// Entries of the form (k, 0) turn into pow2k(k)
// Entries of the form (1, coeff) turn into a squaring and then a table lookup.
// We can fold the squaring into the previous pow2k(k) as pow2k(k+1).
*s = table[1/2]
s.pow2k(127 + 1)
s.Multiply(s, &table[1/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[11/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[13/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[5/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[1/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[11/2])
s.pow2k(5 + 1)
s.Multiply(s, &table[11/2])
s.pow2k(9 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[13/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[11/2])
return s
}
// MultiScalarMult sets v = sum(scalars[i] * points[i]), and returns v.
//
// Execution time depends only on the lengths of the two slices, which must match.
func (v *Point) MultiScalarMult(scalars []*Scalar, points []*Point) *Point {
if len(scalars) != len(points) {
panic("edwards25519: called MultiScalarMult with different size inputs")
}
checkInitialized(points...)
// Proceed as in the single-base case, but share doublings
// between each point in the multiscalar equation.
// Build lookup tables for each point
tables := make([]projLookupTable, len(points))
for i := range tables {
tables[i].FromP3(points[i])
}
// Compute signed radix-16 digits for each scalar
digits := make([][64]int8, len(scalars))
for i := range digits {
digits[i] = scalars[i].signedRadix16()
}
// Unwrap first loop iteration to save computing 16*identity
multiple := &projCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
// Lookup-and-add the appropriate multiple of each input point
for j := range tables {
tables[j].SelectInto(multiple, digits[j][63])
tmp1.Add(v, multiple) // tmp1 = v + x_(j,63)*Q in P1xP1 coords
v.fromP1xP1(tmp1) // update v
}
tmp2.FromP3(v) // set up tmp2 = v in P2 coords for next iteration
for i := 62; i >= 0; i-- {
tmp1.Double(tmp2) // tmp1 = 2*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 2*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 4*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 4*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 8*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 8*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 16*(prev) in P1xP1 coords
v.fromP1xP1(tmp1) // v = 16*(prev) in P3 coords
// Lookup-and-add the appropriate multiple of each input point
for j := range tables {
tables[j].SelectInto(multiple, digits[j][i])
tmp1.Add(v, multiple) // tmp1 = v + x_(j,i)*Q in P1xP1 coords
v.fromP1xP1(tmp1) // update v
}
tmp2.FromP3(v) // set up tmp2 = v in P2 coords for next iteration
}
return v
}
// VarTimeMultiScalarMult sets v = sum(scalars[i] * points[i]), and returns v.
//
// Execution time depends on the inputs.
func (v *Point) VarTimeMultiScalarMult(scalars []*Scalar, points []*Point) *Point {
if len(scalars) != len(points) {
panic("edwards25519: called VarTimeMultiScalarMult with different size inputs")
}
checkInitialized(points...)
// Generalize double-base NAF computation to arbitrary sizes.
// Here all the points are dynamic, so we only use the smaller
// tables.
// Build lookup tables for each point
tables := make([]nafLookupTable5, len(points))
for i := range tables {
tables[i].FromP3(points[i])
}
// Compute a NAF for each scalar
nafs := make([][256]int8, len(scalars))
for i := range nafs {
nafs[i] = scalars[i].nonAdjacentForm(5)
}
multiple := &projCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
tmp2.Zero()
// Move from high to low bits, doubling the accumulator
// at each iteration and checking whether there is a nonzero
// coefficient to look up a multiple of.
//
// Skip trying to find the first nonzero coefficent, because
// searching might be more work than a few extra doublings.
for i := 255; i >= 0; i-- {
tmp1.Double(tmp2)
for j := range nafs {
if nafs[j][i] > 0 {
v.fromP1xP1(tmp1)
tables[j].SelectInto(multiple, nafs[j][i])
tmp1.Add(v, multiple)
} else if nafs[j][i] < 0 {
v.fromP1xP1(tmp1)
tables[j].SelectInto(multiple, -nafs[j][i])
tmp1.Sub(v, multiple)
}
}
tmp2.FromP1xP1(tmp1)
}
v.fromP2(tmp2)
return v
}

420
vendor/filippo.io/edwards25519/field/fe.go generated vendored
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@ -1,420 +0,0 @@
// Copyright (c) 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package field implements fast arithmetic modulo 2^255-19.
package field
import (
"crypto/subtle"
"encoding/binary"
"errors"
"math/bits"
)
// Element represents an element of the field GF(2^255-19). Note that this
// is not a cryptographically secure group, and should only be used to interact
// with edwards25519.Point coordinates.
//
// This type works similarly to math/big.Int, and all arguments and receivers
// are allowed to alias.
//
// The zero value is a valid zero element.
type Element struct {
// An element t represents the integer
// t.l0 + t.l1*2^51 + t.l2*2^102 + t.l3*2^153 + t.l4*2^204
//
// Between operations, all limbs are expected to be lower than 2^52.
l0 uint64
l1 uint64
l2 uint64
l3 uint64
l4 uint64
}
const maskLow51Bits uint64 = (1 << 51) - 1
var feZero = &Element{0, 0, 0, 0, 0}
// Zero sets v = 0, and returns v.
func (v *Element) Zero() *Element {
*v = *feZero
return v
}
var feOne = &Element{1, 0, 0, 0, 0}
// One sets v = 1, and returns v.
func (v *Element) One() *Element {
*v = *feOne
return v
}
// reduce reduces v modulo 2^255 - 19 and returns it.
func (v *Element) reduce() *Element {
v.carryPropagate()
// After the light reduction we now have a field element representation
// v < 2^255 + 2^13 * 19, but need v < 2^255 - 19.
// If v >= 2^255 - 19, then v + 19 >= 2^255, which would overflow 2^255 - 1,
// generating a carry. That is, c will be 0 if v < 2^255 - 19, and 1 otherwise.
c := (v.l0 + 19) >> 51
c = (v.l1 + c) >> 51
c = (v.l2 + c) >> 51
c = (v.l3 + c) >> 51
c = (v.l4 + c) >> 51
// If v < 2^255 - 19 and c = 0, this will be a no-op. Otherwise, it's
// effectively applying the reduction identity to the carry.
v.l0 += 19 * c
v.l1 += v.l0 >> 51
v.l0 = v.l0 & maskLow51Bits
v.l2 += v.l1 >> 51
v.l1 = v.l1 & maskLow51Bits
v.l3 += v.l2 >> 51
v.l2 = v.l2 & maskLow51Bits
v.l4 += v.l3 >> 51
v.l3 = v.l3 & maskLow51Bits
// no additional carry
v.l4 = v.l4 & maskLow51Bits
return v
}
// Add sets v = a + b, and returns v.
func (v *Element) Add(a, b *Element) *Element {
v.l0 = a.l0 + b.l0
v.l1 = a.l1 + b.l1
v.l2 = a.l2 + b.l2
v.l3 = a.l3 + b.l3
v.l4 = a.l4 + b.l4
// Using the generic implementation here is actually faster than the
// assembly. Probably because the body of this function is so simple that
// the compiler can figure out better optimizations by inlining the carry
// propagation.
return v.carryPropagateGeneric()
}
// Subtract sets v = a - b, and returns v.
func (v *Element) Subtract(a, b *Element) *Element {
// We first add 2 * p, to guarantee the subtraction won't underflow, and
// then subtract b (which can be up to 2^255 + 2^13 * 19).
v.l0 = (a.l0 + 0xFFFFFFFFFFFDA) - b.l0
v.l1 = (a.l1 + 0xFFFFFFFFFFFFE) - b.l1
v.l2 = (a.l2 + 0xFFFFFFFFFFFFE) - b.l2
v.l3 = (a.l3 + 0xFFFFFFFFFFFFE) - b.l3
v.l4 = (a.l4 + 0xFFFFFFFFFFFFE) - b.l4
return v.carryPropagate()
}
// Negate sets v = -a, and returns v.
func (v *Element) Negate(a *Element) *Element {
return v.Subtract(feZero, a)
}
// Invert sets v = 1/z mod p, and returns v.
//
// If z == 0, Invert returns v = 0.
func (v *Element) Invert(z *Element) *Element {
// Inversion is implemented as exponentiation with exponent p − 2. It uses the
// same sequence of 255 squarings and 11 multiplications as [Curve25519].
var z2, z9, z11, z2_5_0, z2_10_0, z2_20_0, z2_50_0, z2_100_0, t Element
z2.Square(z) // 2
t.Square(&z2) // 4
t.Square(&t) // 8
z9.Multiply(&t, z) // 9
z11.Multiply(&z9, &z2) // 11
t.Square(&z11) // 22
z2_5_0.Multiply(&t, &z9) // 31 = 2^5 - 2^0
t.Square(&z2_5_0) // 2^6 - 2^1
for i := 0; i < 4; i++ {
t.Square(&t) // 2^10 - 2^5
}
z2_10_0.Multiply(&t, &z2_5_0) // 2^10 - 2^0
t.Square(&z2_10_0) // 2^11 - 2^1
for i := 0; i < 9; i++ {
t.Square(&t) // 2^20 - 2^10
}
z2_20_0.Multiply(&t, &z2_10_0) // 2^20 - 2^0
t.Square(&z2_20_0) // 2^21 - 2^1
for i := 0; i < 19; i++ {
t.Square(&t) // 2^40 - 2^20
}
t.Multiply(&t, &z2_20_0) // 2^40 - 2^0
t.Square(&t) // 2^41 - 2^1
for i := 0; i < 9; i++ {
t.Square(&t) // 2^50 - 2^10
}
z2_50_0.Multiply(&t, &z2_10_0) // 2^50 - 2^0
t.Square(&z2_50_0) // 2^51 - 2^1
for i := 0; i < 49; i++ {
t.Square(&t) // 2^100 - 2^50
}
z2_100_0.Multiply(&t, &z2_50_0) // 2^100 - 2^0
t.Square(&z2_100_0) // 2^101 - 2^1
for i := 0; i < 99; i++ {
t.Square(&t) // 2^200 - 2^100
}
t.Multiply(&t, &z2_100_0) // 2^200 - 2^0
t.Square(&t) // 2^201 - 2^1
for i := 0; i < 49; i++ {
t.Square(&t) // 2^250 - 2^50
}
t.Multiply(&t, &z2_50_0) // 2^250 - 2^0
t.Square(&t) // 2^251 - 2^1
t.Square(&t) // 2^252 - 2^2
t.Square(&t) // 2^253 - 2^3
t.Square(&t) // 2^254 - 2^4
t.Square(&t) // 2^255 - 2^5
return v.Multiply(&t, &z11) // 2^255 - 21
}
// Set sets v = a, and returns v.
func (v *Element) Set(a *Element) *Element {
*v = *a
return v
}
// SetBytes sets v to x, where x is a 32-byte little-endian encoding. If x is
// not of the right length, SetBytes returns nil and an error, and the
// receiver is unchanged.
//
// Consistent with RFC 7748, the most significant bit (the high bit of the
// last byte) is ignored, and non-canonical values (2^255-19 through 2^255-1)
// are accepted. Note that this is laxer than specified by RFC 8032, but
// consistent with most Ed25519 implementations.
func (v *Element) SetBytes(x []byte) (*Element, error) {
if len(x) != 32 {
return nil, errors.New("edwards25519: invalid field element input size")
}
// Bits 0:51 (bytes 0:8, bits 0:64, shift 0, mask 51).
v.l0 = binary.LittleEndian.Uint64(x[0:8])
v.l0 &= maskLow51Bits
// Bits 51:102 (bytes 6:14, bits 48:112, shift 3, mask 51).
v.l1 = binary.LittleEndian.Uint64(x[6:14]) >> 3
v.l1 &= maskLow51Bits
// Bits 102:153 (bytes 12:20, bits 96:160, shift 6, mask 51).
v.l2 = binary.LittleEndian.Uint64(x[12:20]) >> 6
v.l2 &= maskLow51Bits
// Bits 153:204 (bytes 19:27, bits 152:216, shift 1, mask 51).
v.l3 = binary.LittleEndian.Uint64(x[19:27]) >> 1
v.l3 &= maskLow51Bits
// Bits 204:255 (bytes 24:32, bits 192:256, shift 12, mask 51).
// Note: not bytes 25:33, shift 4, to avoid overread.
v.l4 = binary.LittleEndian.Uint64(x[24:32]) >> 12
v.l4 &= maskLow51Bits
return v, nil
}
// Bytes returns the canonical 32-byte little-endian encoding of v.
func (v *Element) Bytes() []byte {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap.
var out [32]byte
return v.bytes(&out)
}
func (v *Element) bytes(out *[32]byte) []byte {
t := *v
t.reduce()
var buf [8]byte
for i, l := range [5]uint64{t.l0, t.l1, t.l2, t.l3, t.l4} {
bitsOffset := i * 51
binary.LittleEndian.PutUint64(buf[:], l<<uint(bitsOffset%8))
for i, bb := range buf {
off := bitsOffset/8 + i
if off >= len(out) {
break
}
out[off] |= bb
}
}
return out[:]
}
// Equal returns 1 if v and u are equal, and 0 otherwise.
func (v *Element) Equal(u *Element) int {
sa, sv := u.Bytes(), v.Bytes()
return subtle.ConstantTimeCompare(sa, sv)
}
// mask64Bits returns 0xffffffff if cond is 1, and 0 otherwise.
func mask64Bits(cond int) uint64 { return ^(uint64(cond) - 1) }
// Select sets v to a if cond == 1, and to b if cond == 0.
func (v *Element) Select(a, b *Element, cond int) *Element {
m := mask64Bits(cond)
v.l0 = (m & a.l0) | (^m & b.l0)
v.l1 = (m & a.l1) | (^m & b.l1)
v.l2 = (m & a.l2) | (^m & b.l2)
v.l3 = (m & a.l3) | (^m & b.l3)
v.l4 = (m & a.l4) | (^m & b.l4)
return v
}
// Swap swaps v and u if cond == 1 or leaves them unchanged if cond == 0, and returns v.
func (v *Element) Swap(u *Element, cond int) {
m := mask64Bits(cond)
t := m & (v.l0 ^ u.l0)
v.l0 ^= t
u.l0 ^= t
t = m & (v.l1 ^ u.l1)
v.l1 ^= t
u.l1 ^= t
t = m & (v.l2 ^ u.l2)
v.l2 ^= t
u.l2 ^= t
t = m & (v.l3 ^ u.l3)
v.l3 ^= t
u.l3 ^= t
t = m & (v.l4 ^ u.l4)
v.l4 ^= t
u.l4 ^= t
}
// IsNegative returns 1 if v is negative, and 0 otherwise.
func (v *Element) IsNegative() int {
return int(v.Bytes()[0] & 1)
}
// Absolute sets v to |u|, and returns v.
func (v *Element) Absolute(u *Element) *Element {
return v.Select(new(Element).Negate(u), u, u.IsNegative())
}
// Multiply sets v = x * y, and returns v.
func (v *Element) Multiply(x, y *Element) *Element {
feMul(v, x, y)
return v
}
// Square sets v = x * x, and returns v.
func (v *Element) Square(x *Element) *Element {
feSquare(v, x)
return v
}
// Mult32 sets v = x * y, and returns v.
func (v *Element) Mult32(x *Element, y uint32) *Element {
x0lo, x0hi := mul51(x.l0, y)
x1lo, x1hi := mul51(x.l1, y)
x2lo, x2hi := mul51(x.l2, y)
x3lo, x3hi := mul51(x.l3, y)
x4lo, x4hi := mul51(x.l4, y)
v.l0 = x0lo + 19*x4hi // carried over per the reduction identity
v.l1 = x1lo + x0hi
v.l2 = x2lo + x1hi
v.l3 = x3lo + x2hi
v.l4 = x4lo + x3hi
// The hi portions are going to be only 32 bits, plus any previous excess,
// so we can skip the carry propagation.
return v
}
// mul51 returns lo + hi * 2⁵¹ = a * b.
func mul51(a uint64, b uint32) (lo uint64, hi uint64) {
mh, ml := bits.Mul64(a, uint64(b))
lo = ml & maskLow51Bits
hi = (mh << 13) | (ml >> 51)
return
}
// Pow22523 set v = x^((p-5)/8), and returns v. (p-5)/8 is 2^252-3.
func (v *Element) Pow22523(x *Element) *Element {
var t0, t1, t2 Element
t0.Square(x) // x^2
t1.Square(&t0) // x^4
t1.Square(&t1) // x^8
t1.Multiply(x, &t1) // x^9
t0.Multiply(&t0, &t1) // x^11
t0.Square(&t0) // x^22
t0.Multiply(&t1, &t0) // x^31
t1.Square(&t0) // x^62
for i := 1; i < 5; i++ { // x^992
t1.Square(&t1)
}
t0.Multiply(&t1, &t0) // x^1023 -> 1023 = 2^10 - 1
t1.Square(&t0) // 2^11 - 2
for i := 1; i < 10; i++ { // 2^20 - 2^10
t1.Square(&t1)
}
t1.Multiply(&t1, &t0) // 2^20 - 1
t2.Square(&t1) // 2^21 - 2
for i := 1; i < 20; i++ { // 2^40 - 2^20
t2.Square(&t2)
}
t1.Multiply(&t2, &t1) // 2^40 - 1
t1.Square(&t1) // 2^41 - 2
for i := 1; i < 10; i++ { // 2^50 - 2^10
t1.Square(&t1)
}
t0.Multiply(&t1, &t0) // 2^50 - 1
t1.Square(&t0) // 2^51 - 2
for i := 1; i < 50; i++ { // 2^100 - 2^50
t1.Square(&t1)
}
t1.Multiply(&t1, &t0) // 2^100 - 1
t2.Square(&t1) // 2^101 - 2
for i := 1; i < 100; i++ { // 2^200 - 2^100
t2.Square(&t2)
}
t1.Multiply(&t2, &t1) // 2^200 - 1
t1.Square(&t1) // 2^201 - 2
for i := 1; i < 50; i++ { // 2^250 - 2^50
t1.Square(&t1)
}
t0.Multiply(&t1, &t0) // 2^250 - 1
t0.Square(&t0) // 2^251 - 2
t0.Square(&t0) // 2^252 - 4
return v.Multiply(&t0, x) // 2^252 - 3 -> x^(2^252-3)
}
// sqrtM1 is 2^((p-1)/4), which squared is equal to -1 by Euler's Criterion.
var sqrtM1 = &Element{1718705420411056, 234908883556509,
2233514472574048, 2117202627021982, 765476049583133}
// SqrtRatio sets r to the non-negative square root of the ratio of u and v.
//
// If u/v is square, SqrtRatio returns r and 1. If u/v is not square, SqrtRatio
// sets r according to Section 4.3 of draft-irtf-cfrg-ristretto255-decaf448-00,
// and returns r and 0.
func (r *Element) SqrtRatio(u, v *Element) (R *Element, wasSquare int) {
t0 := new(Element)
// r = (u * v3) * (u * v7)^((p-5)/8)
v2 := new(Element).Square(v)
uv3 := new(Element).Multiply(u, t0.Multiply(v2, v))
uv7 := new(Element).Multiply(uv3, t0.Square(v2))
rr := new(Element).Multiply(uv3, t0.Pow22523(uv7))
check := new(Element).Multiply(v, t0.Square(rr)) // check = v * r^2
uNeg := new(Element).Negate(u)
correctSignSqrt := check.Equal(u)
flippedSignSqrt := check.Equal(uNeg)
flippedSignSqrtI := check.Equal(t0.Multiply(uNeg, sqrtM1))
rPrime := new(Element).Multiply(rr, sqrtM1) // r_prime = SQRT_M1 * r
// r = CT_SELECT(r_prime IF flipped_sign_sqrt | flipped_sign_sqrt_i ELSE r)
rr.Select(rPrime, rr, flippedSignSqrt|flippedSignSqrtI)
r.Absolute(rr) // Choose the nonnegative square root.
return r, correctSignSqrt | flippedSignSqrt
}

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vendor/filippo.io/edwards25519/field/fe_amd64.go generated vendored
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// Code generated by command: go run fe_amd64_asm.go -out ../fe_amd64.s -stubs ../fe_amd64.go -pkg field. DO NOT EDIT.
//go:build amd64 && gc && !purego
// +build amd64,gc,!purego
package field
// feMul sets out = a * b. It works like feMulGeneric.
//
//go:noescape
func feMul(out *Element, a *Element, b *Element)
// feSquare sets out = a * a. It works like feSquareGeneric.
//
//go:noescape
func feSquare(out *Element, a *Element)

379
vendor/filippo.io/edwards25519/field/fe_amd64.s generated vendored
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// Code generated by command: go run fe_amd64_asm.go -out ../fe_amd64.s -stubs ../fe_amd64.go -pkg field. DO NOT EDIT.
//go:build amd64 && gc && !purego
// +build amd64,gc,!purego
#include "textflag.h"
// func feMul(out *Element, a *Element, b *Element)
TEXT ·feMul(SB), NOSPLIT, $0-24
MOVQ a+8(FP), CX
MOVQ b+16(FP), BX
// r0 = a0×b0
MOVQ (CX), AX
MULQ (BX)
MOVQ AX, DI
MOVQ DX, SI
// r0 += 19×a1×b4
MOVQ 8(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, DI
ADCQ DX, SI
// r0 += 19×a2×b3
MOVQ 16(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(BX)
ADDQ AX, DI
ADCQ DX, SI
// r0 += 19×a3×b2
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 16(BX)
ADDQ AX, DI
ADCQ DX, SI
// r0 += 19×a4×b1
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 8(BX)
ADDQ AX, DI
ADCQ DX, SI
// r1 = a0×b1
MOVQ (CX), AX
MULQ 8(BX)
MOVQ AX, R9
MOVQ DX, R8
// r1 += a1×b0
MOVQ 8(CX), AX
MULQ (BX)
ADDQ AX, R9
ADCQ DX, R8
// r1 += 19×a2×b4
MOVQ 16(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, R9
ADCQ DX, R8
// r1 += 19×a3×b3
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(BX)
ADDQ AX, R9
ADCQ DX, R8
// r1 += 19×a4×b2
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 16(BX)
ADDQ AX, R9
ADCQ DX, R8
// r2 = a0×b2
MOVQ (CX), AX
MULQ 16(BX)
MOVQ AX, R11
MOVQ DX, R10
// r2 += a1×b1
MOVQ 8(CX), AX
MULQ 8(BX)
ADDQ AX, R11
ADCQ DX, R10
// r2 += a2×b0
MOVQ 16(CX), AX
MULQ (BX)
ADDQ AX, R11
ADCQ DX, R10
// r2 += 19×a3×b4
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, R11
ADCQ DX, R10
// r2 += 19×a4×b3
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(BX)
ADDQ AX, R11
ADCQ DX, R10
// r3 = a0×b3
MOVQ (CX), AX
MULQ 24(BX)
MOVQ AX, R13
MOVQ DX, R12
// r3 += a1×b2
MOVQ 8(CX), AX
MULQ 16(BX)
ADDQ AX, R13
ADCQ DX, R12
// r3 += a2×b1
MOVQ 16(CX), AX
MULQ 8(BX)
ADDQ AX, R13
ADCQ DX, R12
// r3 += a3×b0
MOVQ 24(CX), AX
MULQ (BX)
ADDQ AX, R13
ADCQ DX, R12
// r3 += 19×a4×b4
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, R13
ADCQ DX, R12
// r4 = a0×b4
MOVQ (CX), AX
MULQ 32(BX)
MOVQ AX, R15
MOVQ DX, R14
// r4 += a1×b3
MOVQ 8(CX), AX
MULQ 24(BX)
ADDQ AX, R15
ADCQ DX, R14
// r4 += a2×b2
MOVQ 16(CX), AX
MULQ 16(BX)
ADDQ AX, R15
ADCQ DX, R14
// r4 += a3×b1
MOVQ 24(CX), AX
MULQ 8(BX)
ADDQ AX, R15
ADCQ DX, R14
// r4 += a4×b0
MOVQ 32(CX), AX
MULQ (BX)
ADDQ AX, R15
ADCQ DX, R14
// First reduction chain
MOVQ $0x0007ffffffffffff, AX
SHLQ $0x0d, DI, SI
SHLQ $0x0d, R9, R8
SHLQ $0x0d, R11, R10
SHLQ $0x0d, R13, R12
SHLQ $0x0d, R15, R14
ANDQ AX, DI
IMUL3Q $0x13, R14, R14
ADDQ R14, DI
ANDQ AX, R9
ADDQ SI, R9
ANDQ AX, R11
ADDQ R8, R11
ANDQ AX, R13
ADDQ R10, R13
ANDQ AX, R15
ADDQ R12, R15
// Second reduction chain (carryPropagate)
MOVQ DI, SI
SHRQ $0x33, SI
MOVQ R9, R8
SHRQ $0x33, R8
MOVQ R11, R10
SHRQ $0x33, R10
MOVQ R13, R12
SHRQ $0x33, R12
MOVQ R15, R14
SHRQ $0x33, R14
ANDQ AX, DI
IMUL3Q $0x13, R14, R14
ADDQ R14, DI
ANDQ AX, R9
ADDQ SI, R9
ANDQ AX, R11
ADDQ R8, R11
ANDQ AX, R13
ADDQ R10, R13
ANDQ AX, R15
ADDQ R12, R15
// Store output
MOVQ out+0(FP), AX
MOVQ DI, (AX)
MOVQ R9, 8(AX)
MOVQ R11, 16(AX)
MOVQ R13, 24(AX)
MOVQ R15, 32(AX)
RET
// func feSquare(out *Element, a *Element)
TEXT ·feSquare(SB), NOSPLIT, $0-16
MOVQ a+8(FP), CX
// r0 = l0×l0
MOVQ (CX), AX
MULQ (CX)
MOVQ AX, SI
MOVQ DX, BX
// r0 += 38×l1×l4
MOVQ 8(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 32(CX)
ADDQ AX, SI
ADCQ DX, BX
// r0 += 38×l2×l3
MOVQ 16(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 24(CX)
ADDQ AX, SI
ADCQ DX, BX
// r1 = 2×l0×l1
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 8(CX)
MOVQ AX, R8
MOVQ DX, DI
// r1 += 38×l2×l4
MOVQ 16(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 32(CX)
ADDQ AX, R8
ADCQ DX, DI
// r1 += 19×l3×l3
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(CX)
ADDQ AX, R8
ADCQ DX, DI
// r2 = 2×l0×l2
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 16(CX)
MOVQ AX, R10
MOVQ DX, R9
// r2 += l1×l1
MOVQ 8(CX), AX
MULQ 8(CX)
ADDQ AX, R10
ADCQ DX, R9
// r2 += 38×l3×l4
MOVQ 24(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 32(CX)
ADDQ AX, R10
ADCQ DX, R9
// r3 = 2×l0×l3
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 24(CX)
MOVQ AX, R12
MOVQ DX, R11
// r3 += 2×l1×l2
MOVQ 8(CX), AX
IMUL3Q $0x02, AX, AX
MULQ 16(CX)
ADDQ AX, R12
ADCQ DX, R11
// r3 += 19×l4×l4
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(CX)
ADDQ AX, R12
ADCQ DX, R11
// r4 = 2×l0×l4
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 32(CX)
MOVQ AX, R14
MOVQ DX, R13
// r4 += 2×l1×l3
MOVQ 8(CX), AX
IMUL3Q $0x02, AX, AX
MULQ 24(CX)
ADDQ AX, R14
ADCQ DX, R13
// r4 += l2×l2
MOVQ 16(CX), AX
MULQ 16(CX)
ADDQ AX, R14
ADCQ DX, R13
// First reduction chain
MOVQ $0x0007ffffffffffff, AX
SHLQ $0x0d, SI, BX
SHLQ $0x0d, R8, DI
SHLQ $0x0d, R10, R9
SHLQ $0x0d, R12, R11
SHLQ $0x0d, R14, R13
ANDQ AX, SI
IMUL3Q $0x13, R13, R13
ADDQ R13, SI
ANDQ AX, R8
ADDQ BX, R8
ANDQ AX, R10
ADDQ DI, R10
ANDQ AX, R12
ADDQ R9, R12
ANDQ AX, R14
ADDQ R11, R14
// Second reduction chain (carryPropagate)
MOVQ SI, BX
SHRQ $0x33, BX
MOVQ R8, DI
SHRQ $0x33, DI
MOVQ R10, R9
SHRQ $0x33, R9
MOVQ R12, R11
SHRQ $0x33, R11
MOVQ R14, R13
SHRQ $0x33, R13
ANDQ AX, SI
IMUL3Q $0x13, R13, R13
ADDQ R13, SI
ANDQ AX, R8
ADDQ BX, R8
ANDQ AX, R10
ADDQ DI, R10
ANDQ AX, R12
ADDQ R9, R12
ANDQ AX, R14
ADDQ R11, R14
// Store output
MOVQ out+0(FP), AX
MOVQ SI, (AX)
MOVQ R8, 8(AX)
MOVQ R10, 16(AX)
MOVQ R12, 24(AX)
MOVQ R14, 32(AX)
RET

12
vendor/filippo.io/edwards25519/field/fe_amd64_noasm.go generated vendored
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// Copyright (c) 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !amd64 || !gc || purego
// +build !amd64 !gc purego
package field
func feMul(v, x, y *Element) { feMulGeneric(v, x, y) }
func feSquare(v, x *Element) { feSquareGeneric(v, x) }

16
vendor/filippo.io/edwards25519/field/fe_arm64.go generated vendored
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// Copyright (c) 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build arm64 && gc && !purego
// +build arm64,gc,!purego
package field
//go:noescape
func carryPropagate(v *Element)
func (v *Element) carryPropagate() *Element {
carryPropagate(v)
return v
}

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vendor/filippo.io/edwards25519/field/fe_arm64.s generated vendored
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// Copyright (c) 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build arm64 && gc && !purego
#include "textflag.h"
// carryPropagate works exactly like carryPropagateGeneric and uses the
// same AND, ADD, and LSR+MADD instructions emitted by the compiler, but
// avoids loading R0-R4 twice and uses LDP and STP.
//
// See https://golang.org/issues/43145 for the main compiler issue.
//
// func carryPropagate(v *Element)
TEXT ·carryPropagate(SB),NOFRAME|NOSPLIT,$0-8
MOVD v+0(FP), R20
LDP 0(R20), (R0, R1)
LDP 16(R20), (R2, R3)
MOVD 32(R20), R4
AND $0x7ffffffffffff, R0, R10
AND $0x7ffffffffffff, R1, R11
AND $0x7ffffffffffff, R2, R12
AND $0x7ffffffffffff, R3, R13
AND $0x7ffffffffffff, R4, R14
ADD R0>>51, R11, R11
ADD R1>>51, R12, R12
ADD R2>>51, R13, R13
ADD R3>>51, R14, R14
// R4>>51 * 19 + R10 -> R10
LSR $51, R4, R21
MOVD $19, R22
MADD R22, R10, R21, R10
STP (R10, R11), 0(R20)
STP (R12, R13), 16(R20)
MOVD R14, 32(R20)
RET

12
vendor/filippo.io/edwards25519/field/fe_arm64_noasm.go generated vendored
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// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !arm64 || !gc || purego
// +build !arm64 !gc purego
package field
func (v *Element) carryPropagate() *Element {
return v.carryPropagateGeneric()
}

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vendor/filippo.io/edwards25519/field/fe_extra.go generated vendored
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// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package field
import "errors"
// This file contains additional functionality that is not included in the
// upstream crypto/ed25519/edwards25519/field package.
// SetWideBytes sets v to x, where x is a 64-byte little-endian encoding, which
// is reduced modulo the field order. If x is not of the right length,
// SetWideBytes returns nil and an error, and the receiver is unchanged.
//
// SetWideBytes is not necessary to select a uniformly distributed value, and is
// only provided for compatibility: SetBytes can be used instead as the chance
// of bias is less than 2⁻²⁵⁰.
func (v *Element) SetWideBytes(x []byte) (*Element, error) {
if len(x) != 64 {
return nil, errors.New("edwards25519: invalid SetWideBytes input size")
}
// Split the 64 bytes into two elements, and extract the most significant
// bit of each, which is ignored by SetBytes.
lo, _ := new(Element).SetBytes(x[:32])
loMSB := uint64(x[31] >> 7)
hi, _ := new(Element).SetBytes(x[32:])
hiMSB := uint64(x[63] >> 7)
// The output we want is
//
// v = lo + loMSB * 2²⁵⁵ + hi * 2²⁵⁶ + hiMSB * 2⁵¹¹
//
// which applying the reduction identity comes out to
//
// v = lo + loMSB * 19 + hi * 2 * 19 + hiMSB * 2 * 19²
//
// l0 will be the sum of a 52 bits value (lo.l0), plus a 5 bits value
// (loMSB * 19), a 6 bits value (hi.l0 * 2 * 19), and a 10 bits value
// (hiMSB * 2 * 19²), so it fits in a uint64.
v.l0 = lo.l0 + loMSB*19 + hi.l0*2*19 + hiMSB*2*19*19
v.l1 = lo.l1 + hi.l1*2*19
v.l2 = lo.l2 + hi.l2*2*19
v.l3 = lo.l3 + hi.l3*2*19
v.l4 = lo.l4 + hi.l4*2*19
return v.carryPropagate(), nil
}

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vendor/filippo.io/edwards25519/field/fe_generic.go generated vendored
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// Copyright (c) 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package field
import "math/bits"
// uint128 holds a 128-bit number as two 64-bit limbs, for use with the
// bits.Mul64 and bits.Add64 intrinsics.
type uint128 struct {
lo, hi uint64
}
// mul64 returns a * b.
func mul64(a, b uint64) uint128 {
hi, lo := bits.Mul64(a, b)
return uint128{lo, hi}
}
// addMul64 returns v + a * b.
func addMul64(v uint128, a, b uint64) uint128 {
hi, lo := bits.Mul64(a, b)
lo, c := bits.Add64(lo, v.lo, 0)
hi, _ = bits.Add64(hi, v.hi, c)
return uint128{lo, hi}
}
// shiftRightBy51 returns a >> 51. a is assumed to be at most 115 bits.
func shiftRightBy51(a uint128) uint64 {
return (a.hi << (64 - 51)) | (a.lo >> 51)
}
func feMulGeneric(v, a, b *Element) {
a0 := a.l0
a1 := a.l1
a2 := a.l2
a3 := a.l3
a4 := a.l4
b0 := b.l0
b1 := b.l1
b2 := b.l2
b3 := b.l3
b4 := b.l4
// Limb multiplication works like pen-and-paper columnar multiplication, but
// with 51-bit limbs instead of digits.
//
// a4 a3 a2 a1 a0 x
// b4 b3 b2 b1 b0 =
// ------------------------
// a4b0 a3b0 a2b0 a1b0 a0b0 +
// a4b1 a3b1 a2b1 a1b1 a0b1 +
// a4b2 a3b2 a2b2 a1b2 a0b2 +
// a4b3 a3b3 a2b3 a1b3 a0b3 +
// a4b4 a3b4 a2b4 a1b4 a0b4 =
// ----------------------------------------------
// r8 r7 r6 r5 r4 r3 r2 r1 r0
//
// We can then use the reduction identity (a * 2²⁵⁵ + b = a * 19 + b) to
// reduce the limbs that would overflow 255 bits. r5 * 2²⁵⁵ becomes 19 * r5,
// r6 * 2³⁰⁶ becomes 19 * r6 * 2⁵¹, etc.
//
// Reduction can be carried out simultaneously to multiplication. For
// example, we do not compute r5: whenever the result of a multiplication
// belongs to r5, like a1b4, we multiply it by 19 and add the result to r0.
//
// a4b0 a3b0 a2b0 a1b0 a0b0 +
// a3b1 a2b1 a1b1 a0b1 19×a4b1 +
// a2b2 a1b2 a0b2 19×a4b2 19×a3b2 +
// a1b3 a0b3 19×a4b3 19×a3b3 19×a2b3 +
// a0b4 19×a4b4 19×a3b4 19×a2b4 19×a1b4 =
// --------------------------------------
// r4 r3 r2 r1 r0
//
// Finally we add up the columns into wide, overlapping limbs.
a1_19 := a1 * 19
a2_19 := a2 * 19
a3_19 := a3 * 19
a4_19 := a4 * 19
// r0 = a0×b0 + 19×(a1×b4 + a2×b3 + a3×b2 + a4×b1)
r0 := mul64(a0, b0)
r0 = addMul64(r0, a1_19, b4)
r0 = addMul64(r0, a2_19, b3)
r0 = addMul64(r0, a3_19, b2)
r0 = addMul64(r0, a4_19, b1)
// r1 = a0×b1 + a1×b0 + 19×(a2×b4 + a3×b3 + a4×b2)
r1 := mul64(a0, b1)
r1 = addMul64(r1, a1, b0)
r1 = addMul64(r1, a2_19, b4)
r1 = addMul64(r1, a3_19, b3)
r1 = addMul64(r1, a4_19, b2)
// r2 = a0×b2 + a1×b1 + a2×b0 + 19×(a3×b4 + a4×b3)
r2 := mul64(a0, b2)
r2 = addMul64(r2, a1, b1)
r2 = addMul64(r2, a2, b0)
r2 = addMul64(r2, a3_19, b4)
r2 = addMul64(r2, a4_19, b3)
// r3 = a0×b3 + a1×b2 + a2×b1 + a3×b0 + 19×a4×b4
r3 := mul64(a0, b3)
r3 = addMul64(r3, a1, b2)
r3 = addMul64(r3, a2, b1)
r3 = addMul64(r3, a3, b0)
r3 = addMul64(r3, a4_19, b4)
// r4 = a0×b4 + a1×b3 + a2×b2 + a3×b1 + a4×b0
r4 := mul64(a0, b4)
r4 = addMul64(r4, a1, b3)
r4 = addMul64(r4, a2, b2)
r4 = addMul64(r4, a3, b1)
r4 = addMul64(r4, a4, b0)
// After the multiplication, we need to reduce (carry) the five coefficients
// to obtain a result with limbs that are at most slightly larger than 2⁵¹,
// to respect the Element invariant.
//
// Overall, the reduction works the same as carryPropagate, except with
// wider inputs: we take the carry for each coefficient by shifting it right
// by 51, and add it to the limb above it. The top carry is multiplied by 19
// according to the reduction identity and added to the lowest limb.
//
// The largest coefficient (r0) will be at most 111 bits, which guarantees
// that all carries are at most 111 - 51 = 60 bits, which fits in a uint64.
//
// r0 = a0×b0 + 19×(a1×b4 + a2×b3 + a3×b2 + a4×b1)
// r0 < 2⁵²×2⁵² + 19×(2⁵²×2⁵² + 2⁵²×2⁵² + 2⁵²×2⁵² + 2⁵²×2⁵²)
// r0 < (1 + 19 × 4) × 2⁵² × 2⁵²
// r0 < 2⁷ × 2⁵² × 2⁵²
// r0 < 2¹¹¹
//
// Moreover, the top coefficient (r4) is at most 107 bits, so c4 is at most
// 56 bits, and c4 * 19 is at most 61 bits, which again fits in a uint64 and
// allows us to easily apply the reduction identity.
//
// r4 = a0×b4 + a1×b3 + a2×b2 + a3×b1 + a4×b0
// r4 < 5 × 2⁵² × 2⁵²
// r4 < 2¹⁰⁷
//
c0 := shiftRightBy51(r0)
c1 := shiftRightBy51(r1)
c2 := shiftRightBy51(r2)
c3 := shiftRightBy51(r3)
c4 := shiftRightBy51(r4)
rr0 := r0.lo&maskLow51Bits + c4*19
rr1 := r1.lo&maskLow51Bits + c0
rr2 := r2.lo&maskLow51Bits + c1
rr3 := r3.lo&maskLow51Bits + c2
rr4 := r4.lo&maskLow51Bits + c3
// Now all coefficients fit into 64-bit registers but are still too large to
// be passed around as an Element. We therefore do one last carry chain,
// where the carries will be small enough to fit in the wiggle room above 2⁵¹.
*v = Element{rr0, rr1, rr2, rr3, rr4}
v.carryPropagate()
}
func feSquareGeneric(v, a *Element) {
l0 := a.l0
l1 := a.l1
l2 := a.l2
l3 := a.l3
l4 := a.l4
// Squaring works precisely like multiplication above, but thanks to its
// symmetry we get to group a few terms together.
//
// l4 l3 l2 l1 l0 x
// l4 l3 l2 l1 l0 =
// ------------------------
// l4l0 l3l0 l2l0 l1l0 l0l0 +
// l4l1 l3l1 l2l1 l1l1 l0l1 +
// l4l2 l3l2 l2l2 l1l2 l0l2 +
// l4l3 l3l3 l2l3 l1l3 l0l3 +
// l4l4 l3l4 l2l4 l1l4 l0l4 =
// ----------------------------------------------
// r8 r7 r6 r5 r4 r3 r2 r1 r0
//
// l4l0 l3l0 l2l0 l1l0 l0l0 +
// l3l1 l2l1 l1l1 l0l1 19×l4l1 +
// l2l2 l1l2 l0l2 19×l4l2 19×l3l2 +
// l1l3 l0l3 19×l4l3 19×l3l3 19×l2l3 +
// l0l4 19×l4l4 19×l3l4 19×l2l4 19×l1l4 =
// --------------------------------------
// r4 r3 r2 r1 r0
//
// With precomputed 2×, 19×, and 2×19× terms, we can compute each limb with
// only three Mul64 and four Add64, instead of five and eight.
l0_2 := l0 * 2
l1_2 := l1 * 2
l1_38 := l1 * 38
l2_38 := l2 * 38
l3_38 := l3 * 38
l3_19 := l3 * 19
l4_19 := l4 * 19
// r0 = l0×l0 + 19×(l1×l4 + l2×l3 + l3×l2 + l4×l1) = l0×l0 + 19×2×(l1×l4 + l2×l3)
r0 := mul64(l0, l0)
r0 = addMul64(r0, l1_38, l4)
r0 = addMul64(r0, l2_38, l3)
// r1 = l0×l1 + l1×l0 + 19×(l2×l4 + l3×l3 + l4×l2) = 2×l0×l1 + 19×2×l2×l4 + 19×l3×l3
r1 := mul64(l0_2, l1)
r1 = addMul64(r1, l2_38, l4)
r1 = addMul64(r1, l3_19, l3)
// r2 = l0×l2 + l1×l1 + l2×l0 + 19×(l3×l4 + l4×l3) = 2×l0×l2 + l1×l1 + 19×2×l3×l4
r2 := mul64(l0_2, l2)
r2 = addMul64(r2, l1, l1)
r2 = addMul64(r2, l3_38, l4)
// r3 = l0×l3 + l1×l2 + l2×l1 + l3×l0 + 19×l4×l4 = 2×l0×l3 + 2×l1×l2 + 19×l4×l4
r3 := mul64(l0_2, l3)
r3 = addMul64(r3, l1_2, l2)
r3 = addMul64(r3, l4_19, l4)
// r4 = l0×l4 + l1×l3 + l2×l2 + l3×l1 + l4×l0 = 2×l0×l4 + 2×l1×l3 + l2×l2
r4 := mul64(l0_2, l4)
r4 = addMul64(r4, l1_2, l3)
r4 = addMul64(r4, l2, l2)
c0 := shiftRightBy51(r0)
c1 := shiftRightBy51(r1)
c2 := shiftRightBy51(r2)
c3 := shiftRightBy51(r3)
c4 := shiftRightBy51(r4)
rr0 := r0.lo&maskLow51Bits + c4*19
rr1 := r1.lo&maskLow51Bits + c0
rr2 := r2.lo&maskLow51Bits + c1
rr3 := r3.lo&maskLow51Bits + c2
rr4 := r4.lo&maskLow51Bits + c3
*v = Element{rr0, rr1, rr2, rr3, rr4}
v.carryPropagate()
}
// carryPropagateGeneric brings the limbs below 52 bits by applying the reduction
// identity (a * 2²⁵⁵ + b = a * 19 + b) to the l4 carry.
func (v *Element) carryPropagateGeneric() *Element {
c0 := v.l0 >> 51
c1 := v.l1 >> 51
c2 := v.l2 >> 51
c3 := v.l3 >> 51
c4 := v.l4 >> 51
// c4 is at most 64 - 51 = 13 bits, so c4*19 is at most 18 bits, and
// the final l0 will be at most 52 bits. Similarly for the rest.
v.l0 = v.l0&maskLow51Bits + c4*19
v.l1 = v.l1&maskLow51Bits + c0
v.l2 = v.l2&maskLow51Bits + c1
v.l3 = v.l3&maskLow51Bits + c2
v.l4 = v.l4&maskLow51Bits + c3
return v
}

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// Copyright (c) 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
import (
"encoding/binary"
"errors"
)
// A Scalar is an integer modulo
//
// l = 2^252 + 27742317777372353535851937790883648493
//
// which is the prime order of the edwards25519 group.
//
// This type works similarly to math/big.Int, and all arguments and
// receivers are allowed to alias.
//
// The zero value is a valid zero element.
type Scalar struct {
// s is the scalar in the Montgomery domain, in the format of the
// fiat-crypto implementation.
s fiatScalarMontgomeryDomainFieldElement
}
// The field implementation in scalar_fiat.go is generated by the fiat-crypto
// project (https://github.com/mit-plv/fiat-crypto) at version v0.0.9 (23d2dbc)
// from a formally verified model.
//
// fiat-crypto code comes under the following license.
//
// Copyright (c) 2015-2020 The fiat-crypto Authors. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// THIS SOFTWARE IS PROVIDED BY the fiat-crypto authors "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Berkeley Software Design,
// Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// NewScalar returns a new zero Scalar.
func NewScalar() *Scalar {
return &Scalar{}
}
// MultiplyAdd sets s = x * y + z mod l, and returns s. It is equivalent to
// using Multiply and then Add.
func (s *Scalar) MultiplyAdd(x, y, z *Scalar) *Scalar {
// Make a copy of z in case it aliases s.
zCopy := new(Scalar).Set(z)
return s.Multiply(x, y).Add(s, zCopy)
}
// Add sets s = x + y mod l, and returns s.
func (s *Scalar) Add(x, y *Scalar) *Scalar {
// s = 1 * x + y mod l
fiatScalarAdd(&s.s, &x.s, &y.s)
return s
}
// Subtract sets s = x - y mod l, and returns s.
func (s *Scalar) Subtract(x, y *Scalar) *Scalar {
// s = -1 * y + x mod l
fiatScalarSub(&s.s, &x.s, &y.s)
return s
}
// Negate sets s = -x mod l, and returns s.
func (s *Scalar) Negate(x *Scalar) *Scalar {
// s = -1 * x + 0 mod l
fiatScalarOpp(&s.s, &x.s)
return s
}
// Multiply sets s = x * y mod l, and returns s.
func (s *Scalar) Multiply(x, y *Scalar) *Scalar {
// s = x * y + 0 mod l
fiatScalarMul(&s.s, &x.s, &y.s)
return s
}
// Set sets s = x, and returns s.
func (s *Scalar) Set(x *Scalar) *Scalar {
*s = *x
return s
}
// SetUniformBytes sets s = x mod l, where x is a 64-byte little-endian integer.
// If x is not of the right length, SetUniformBytes returns nil and an error,
// and the receiver is unchanged.
//
// SetUniformBytes can be used to set s to a uniformly distributed value given
// 64 uniformly distributed random bytes.
func (s *Scalar) SetUniformBytes(x []byte) (*Scalar, error) {
if len(x) != 64 {
return nil, errors.New("edwards25519: invalid SetUniformBytes input length")
}
// We have a value x of 512 bits, but our fiatScalarFromBytes function
// expects an input lower than l, which is a little over 252 bits.
//
// Instead of writing a reduction function that operates on wider inputs, we
// can interpret x as the sum of three shorter values a, b, and c.
//
// x = a + b * 2^168 + c * 2^336 mod l
//
// We then precompute 2^168 and 2^336 modulo l, and perform the reduction
// with two multiplications and two additions.
s.setShortBytes(x[:21])
t := new(Scalar).setShortBytes(x[21:42])
s.Add(s, t.Multiply(t, scalarTwo168))
t.setShortBytes(x[42:])
s.Add(s, t.Multiply(t, scalarTwo336))
return s, nil
}
// scalarTwo168 and scalarTwo336 are 2^168 and 2^336 modulo l, encoded as a
// fiatScalarMontgomeryDomainFieldElement, which is a little-endian 4-limb value
// in the 2^256 Montgomery domain.
var scalarTwo168 = &Scalar{s: [4]uint64{0x5b8ab432eac74798, 0x38afddd6de59d5d7,
0xa2c131b399411b7c, 0x6329a7ed9ce5a30}}
var scalarTwo336 = &Scalar{s: [4]uint64{0xbd3d108e2b35ecc5, 0x5c3a3718bdf9c90b,
0x63aa97a331b4f2ee, 0x3d217f5be65cb5c}}
// setShortBytes sets s = x mod l, where x is a little-endian integer shorter
// than 32 bytes.
func (s *Scalar) setShortBytes(x []byte) *Scalar {
if len(x) >= 32 {
panic("edwards25519: internal error: setShortBytes called with a long string")
}
var buf [32]byte
copy(buf[:], x)
fiatScalarFromBytes((*[4]uint64)(&s.s), &buf)
fiatScalarToMontgomery(&s.s, (*fiatScalarNonMontgomeryDomainFieldElement)(&s.s))
return s
}
// SetCanonicalBytes sets s = x, where x is a 32-byte little-endian encoding of
// s, and returns s. If x is not a canonical encoding of s, SetCanonicalBytes
// returns nil and an error, and the receiver is unchanged.
func (s *Scalar) SetCanonicalBytes(x []byte) (*Scalar, error) {
if len(x) != 32 {
return nil, errors.New("invalid scalar length")
}
if !isReduced(x) {
return nil, errors.New("invalid scalar encoding")
}
fiatScalarFromBytes((*[4]uint64)(&s.s), (*[32]byte)(x))
fiatScalarToMontgomery(&s.s, (*fiatScalarNonMontgomeryDomainFieldElement)(&s.s))
return s, nil
}
// scalarMinusOneBytes is l - 1 in little endian.
var scalarMinusOneBytes = [32]byte{236, 211, 245, 92, 26, 99, 18, 88, 214, 156, 247, 162, 222, 249, 222, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16}
// isReduced returns whether the given scalar in 32-byte little endian encoded
// form is reduced modulo l.
func isReduced(s []byte) bool {
if len(s) != 32 {
return false
}
for i := len(s) - 1; i >= 0; i-- {
switch {
case s[i] > scalarMinusOneBytes[i]:
return false
case s[i] < scalarMinusOneBytes[i]:
return true
}
}
return true
}
// SetBytesWithClamping applies the buffer pruning described in RFC 8032,
// Section 5.1.5 (also known as clamping) and sets s to the result. The input
// must be 32 bytes, and it is not modified. If x is not of the right length,
// SetBytesWithClamping returns nil and an error, and the receiver is unchanged.
//
// Note that since Scalar values are always reduced modulo the prime order of
// the curve, the resulting value will not preserve any of the cofactor-clearing
// properties that clamping is meant to provide. It will however work as
// expected as long as it is applied to points on the prime order subgroup, like
// in Ed25519. In fact, it is lost to history why RFC 8032 adopted the
// irrelevant RFC 7748 clamping, but it is now required for compatibility.
func (s *Scalar) SetBytesWithClamping(x []byte) (*Scalar, error) {
// The description above omits the purpose of the high bits of the clamping
// for brevity, but those are also lost to reductions, and are also
// irrelevant to edwards25519 as they protect against a specific
// implementation bug that was once observed in a generic Montgomery ladder.
if len(x) != 32 {
return nil, errors.New("edwards25519: invalid SetBytesWithClamping input length")
}
// We need to use the wide reduction from SetUniformBytes, since clamping
// sets the 2^254 bit, making the value higher than the order.
var wideBytes [64]byte
copy(wideBytes[:], x[:])
wideBytes[0] &= 248
wideBytes[31] &= 63
wideBytes[31] |= 64
return s.SetUniformBytes(wideBytes[:])
}
// Bytes returns the canonical 32-byte little-endian encoding of s.
func (s *Scalar) Bytes() []byte {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap.
var encoded [32]byte
return s.bytes(&encoded)
}
func (s *Scalar) bytes(out *[32]byte) []byte {
var ss fiatScalarNonMontgomeryDomainFieldElement
fiatScalarFromMontgomery(&ss, &s.s)
fiatScalarToBytes(out, (*[4]uint64)(&ss))
return out[:]
}
// Equal returns 1 if s and t are equal, and 0 otherwise.
func (s *Scalar) Equal(t *Scalar) int {
var diff fiatScalarMontgomeryDomainFieldElement
fiatScalarSub(&diff, &s.s, &t.s)
var nonzero uint64
fiatScalarNonzero(&nonzero, (*[4]uint64)(&diff))
nonzero |= nonzero >> 32
nonzero |= nonzero >> 16
nonzero |= nonzero >> 8
nonzero |= nonzero >> 4
nonzero |= nonzero >> 2
nonzero |= nonzero >> 1
return int(^nonzero) & 1
}
// nonAdjacentForm computes a width-w non-adjacent form for this scalar.
//
// w must be between 2 and 8, or nonAdjacentForm will panic.
func (s *Scalar) nonAdjacentForm(w uint) [256]int8 {
// This implementation is adapted from the one
// in curve25519-dalek and is documented there:
// https://github.com/dalek-cryptography/curve25519-dalek/blob/f630041af28e9a405255f98a8a93adca18e4315b/src/scalar.rs#L800-L871
b := s.Bytes()
if b[31] > 127 {
panic("scalar has high bit set illegally")
}
if w < 2 {
panic("w must be at least 2 by the definition of NAF")
} else if w > 8 {
panic("NAF digits must fit in int8")
}
var naf [256]int8
var digits [5]uint64
for i := 0; i < 4; i++ {
digits[i] = binary.LittleEndian.Uint64(b[i*8:])
}
width := uint64(1 << w)
windowMask := uint64(width - 1)
pos := uint(0)
carry := uint64(0)
for pos < 256 {
indexU64 := pos / 64
indexBit := pos % 64
var bitBuf uint64
if indexBit < 64-w {
// This window's bits are contained in a single u64
bitBuf = digits[indexU64] >> indexBit
} else {
// Combine the current 64 bits with bits from the next 64
bitBuf = (digits[indexU64] >> indexBit) | (digits[1+indexU64] << (64 - indexBit))
}
// Add carry into the current window
window := carry + (bitBuf & windowMask)
if window&1 == 0 {
// If the window value is even, preserve the carry and continue.
// Why is the carry preserved?
// If carry == 0 and window & 1 == 0,
// then the next carry should be 0
// If carry == 1 and window & 1 == 0,
// then bit_buf & 1 == 1 so the next carry should be 1
pos += 1
continue
}
if window < width/2 {
carry = 0
naf[pos] = int8(window)
} else {
carry = 1
naf[pos] = int8(window) - int8(width)
}
pos += w
}
return naf
}
func (s *Scalar) signedRadix16() [64]int8 {
b := s.Bytes()
if b[31] > 127 {
panic("scalar has high bit set illegally")
}
var digits [64]int8
// Compute unsigned radix-16 digits:
for i := 0; i < 32; i++ {
digits[2*i] = int8(b[i] & 15)
digits[2*i+1] = int8((b[i] >> 4) & 15)
}
// Recenter coefficients:
for i := 0; i < 63; i++ {
carry := (digits[i] + 8) >> 4
digits[i] -= carry << 4
digits[i+1] += carry
}
return digits
}

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// Copyright (c) 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
import "sync"
// basepointTable is a set of 32 affineLookupTables, where table i is generated
// from 256i * basepoint. It is precomputed the first time it's used.
func basepointTable() *[32]affineLookupTable {
basepointTablePrecomp.initOnce.Do(func() {
p := NewGeneratorPoint()
for i := 0; i < 32; i++ {
basepointTablePrecomp.table[i].FromP3(p)
for j := 0; j < 8; j++ {
p.Add(p, p)
}
}
})
return &basepointTablePrecomp.table
}
var basepointTablePrecomp struct {
table [32]affineLookupTable
initOnce sync.Once
}
// ScalarBaseMult sets v = x * B, where B is the canonical generator, and
// returns v.
//
// The scalar multiplication is done in constant time.
func (v *Point) ScalarBaseMult(x *Scalar) *Point {
basepointTable := basepointTable()
// Write x = sum(x_i * 16^i) so x*B = sum( B*x_i*16^i )
// as described in the Ed25519 paper
//
// Group even and odd coefficients
// x*B = x_0*16^0*B + x_2*16^2*B + ... + x_62*16^62*B
// + x_1*16^1*B + x_3*16^3*B + ... + x_63*16^63*B
// x*B = x_0*16^0*B + x_2*16^2*B + ... + x_62*16^62*B
// + 16*( x_1*16^0*B + x_3*16^2*B + ... + x_63*16^62*B)
//
// We use a lookup table for each i to get x_i*16^(2*i)*B
// and do four doublings to multiply by 16.
digits := x.signedRadix16()
multiple := &affineCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
// Accumulate the odd components first
v.Set(NewIdentityPoint())
for i := 1; i < 64; i += 2 {
basepointTable[i/2].SelectInto(multiple, digits[i])
tmp1.AddAffine(v, multiple)
v.fromP1xP1(tmp1)
}
// Multiply by 16
tmp2.FromP3(v) // tmp2 = v in P2 coords
tmp1.Double(tmp2) // tmp1 = 2*v in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 2*v in P2 coords
tmp1.Double(tmp2) // tmp1 = 4*v in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 4*v in P2 coords
tmp1.Double(tmp2) // tmp1 = 8*v in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 8*v in P2 coords
tmp1.Double(tmp2) // tmp1 = 16*v in P1xP1 coords
v.fromP1xP1(tmp1) // now v = 16*(odd components)
// Accumulate the even components
for i := 0; i < 64; i += 2 {
basepointTable[i/2].SelectInto(multiple, digits[i])
tmp1.AddAffine(v, multiple)
v.fromP1xP1(tmp1)
}
return v
}
// ScalarMult sets v = x * q, and returns v.
//
// The scalar multiplication is done in constant time.
func (v *Point) ScalarMult(x *Scalar, q *Point) *Point {
checkInitialized(q)
var table projLookupTable
table.FromP3(q)
// Write x = sum(x_i * 16^i)
// so x*Q = sum( Q*x_i*16^i )
// = Q*x_0 + 16*(Q*x_1 + 16*( ... + Q*x_63) ... )
// <------compute inside out---------
//
// We use the lookup table to get the x_i*Q values
// and do four doublings to compute 16*Q
digits := x.signedRadix16()
// Unwrap first loop iteration to save computing 16*identity
multiple := &projCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
table.SelectInto(multiple, digits[63])
v.Set(NewIdentityPoint())
tmp1.Add(v, multiple) // tmp1 = x_63*Q in P1xP1 coords
for i := 62; i >= 0; i-- {
tmp2.FromP1xP1(tmp1) // tmp2 = (prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 2*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 2*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 4*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 4*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 8*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 8*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 16*(prev) in P1xP1 coords
v.fromP1xP1(tmp1) // v = 16*(prev) in P3 coords
table.SelectInto(multiple, digits[i])
tmp1.Add(v, multiple) // tmp1 = x_i*Q + 16*(prev) in P1xP1 coords
}
v.fromP1xP1(tmp1)
return v
}
// basepointNafTable is the nafLookupTable8 for the basepoint.
// It is precomputed the first time it's used.
func basepointNafTable() *nafLookupTable8 {
basepointNafTablePrecomp.initOnce.Do(func() {
basepointNafTablePrecomp.table.FromP3(NewGeneratorPoint())
})
return &basepointNafTablePrecomp.table
}
var basepointNafTablePrecomp struct {
table nafLookupTable8
initOnce sync.Once
}
// VarTimeDoubleScalarBaseMult sets v = a * A + b * B, where B is the canonical
// generator, and returns v.
//
// Execution time depends on the inputs.
func (v *Point) VarTimeDoubleScalarBaseMult(a *Scalar, A *Point, b *Scalar) *Point {
checkInitialized(A)
// Similarly to the single variable-base approach, we compute
// digits and use them with a lookup table. However, because
// we are allowed to do variable-time operations, we don't
// need constant-time lookups or constant-time digit
// computations.
//
// So we use a non-adjacent form of some width w instead of
// radix 16. This is like a binary representation (one digit
// for each binary place) but we allow the digits to grow in
// magnitude up to 2^{w-1} so that the nonzero digits are as
// sparse as possible. Intuitively, this "condenses" the
// "mass" of the scalar onto sparse coefficients (meaning
// fewer additions).
basepointNafTable := basepointNafTable()
var aTable nafLookupTable5
aTable.FromP3(A)
// Because the basepoint is fixed, we can use a wider NAF
// corresponding to a bigger table.
aNaf := a.nonAdjacentForm(5)
bNaf := b.nonAdjacentForm(8)
// Find the first nonzero coefficient.
i := 255
for j := i; j >= 0; j-- {
if aNaf[j] != 0 || bNaf[j] != 0 {
break
}
}
multA := &projCached{}
multB := &affineCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
tmp2.Zero()
// Move from high to low bits, doubling the accumulator
// at each iteration and checking whether there is a nonzero
// coefficient to look up a multiple of.
for ; i >= 0; i-- {
tmp1.Double(tmp2)
// Only update v if we have a nonzero coeff to add in.
if aNaf[i] > 0 {
v.fromP1xP1(tmp1)
aTable.SelectInto(multA, aNaf[i])
tmp1.Add(v, multA)
} else if aNaf[i] < 0 {
v.fromP1xP1(tmp1)
aTable.SelectInto(multA, -aNaf[i])
tmp1.Sub(v, multA)
}
if bNaf[i] > 0 {
v.fromP1xP1(tmp1)
basepointNafTable.SelectInto(multB, bNaf[i])
tmp1.AddAffine(v, multB)
} else if bNaf[i] < 0 {
v.fromP1xP1(tmp1)
basepointNafTable.SelectInto(multB, -bNaf[i])
tmp1.SubAffine(v, multB)
}
tmp2.FromP1xP1(tmp1)
}
v.fromP2(tmp2)
return v
}

129
vendor/filippo.io/edwards25519/tables.go generated vendored
View File

@ -1,129 +0,0 @@
// Copyright (c) 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
import (
"crypto/subtle"
)
// A dynamic lookup table for variable-base, constant-time scalar muls.
type projLookupTable struct {
points [8]projCached
}
// A precomputed lookup table for fixed-base, constant-time scalar muls.
type affineLookupTable struct {
points [8]affineCached
}
// A dynamic lookup table for variable-base, variable-time scalar muls.
type nafLookupTable5 struct {
points [8]projCached
}
// A precomputed lookup table for fixed-base, variable-time scalar muls.
type nafLookupTable8 struct {
points [64]affineCached
}
// Constructors.
// Builds a lookup table at runtime. Fast.
func (v *projLookupTable) FromP3(q *Point) {
// Goal: v.points[i] = (i+1)*Q, i.e., Q, 2Q, ..., 8Q
// This allows lookup of -8Q, ..., -Q, 0, Q, ..., 8Q
v.points[0].FromP3(q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 7; i++ {
// Compute (i+1)*Q as Q + i*Q and convert to a projCached
// This is needlessly complicated because the API has explicit
// receivers instead of creating stack objects and relying on RVO
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.Add(q, &v.points[i])))
}
}
// This is not optimised for speed; fixed-base tables should be precomputed.
func (v *affineLookupTable) FromP3(q *Point) {
// Goal: v.points[i] = (i+1)*Q, i.e., Q, 2Q, ..., 8Q
// This allows lookup of -8Q, ..., -Q, 0, Q, ..., 8Q
v.points[0].FromP3(q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 7; i++ {
// Compute (i+1)*Q as Q + i*Q and convert to affineCached
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.AddAffine(q, &v.points[i])))
}
}
// Builds a lookup table at runtime. Fast.
func (v *nafLookupTable5) FromP3(q *Point) {
// Goal: v.points[i] = (2*i+1)*Q, i.e., Q, 3Q, 5Q, ..., 15Q
// This allows lookup of -15Q, ..., -3Q, -Q, 0, Q, 3Q, ..., 15Q
v.points[0].FromP3(q)
q2 := Point{}
q2.Add(q, q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 7; i++ {
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.Add(&q2, &v.points[i])))
}
}
// This is not optimised for speed; fixed-base tables should be precomputed.
func (v *nafLookupTable8) FromP3(q *Point) {
v.points[0].FromP3(q)
q2 := Point{}
q2.Add(q, q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 63; i++ {
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.AddAffine(&q2, &v.points[i])))
}
}
// Selectors.
// Set dest to x*Q, where -8 <= x <= 8, in constant time.
func (v *projLookupTable) SelectInto(dest *projCached, x int8) {
// Compute xabs = |x|
xmask := x >> 7
xabs := uint8((x + xmask) ^ xmask)
dest.Zero()
for j := 1; j <= 8; j++ {
// Set dest = j*Q if |x| = j
cond := subtle.ConstantTimeByteEq(xabs, uint8(j))
dest.Select(&v.points[j-1], dest, cond)
}
// Now dest = |x|*Q, conditionally negate to get x*Q
dest.CondNeg(int(xmask & 1))
}
// Set dest to x*Q, where -8 <= x <= 8, in constant time.
func (v *affineLookupTable) SelectInto(dest *affineCached, x int8) {
// Compute xabs = |x|
xmask := x >> 7
xabs := uint8((x + xmask) ^ xmask)
dest.Zero()
for j := 1; j <= 8; j++ {
// Set dest = j*Q if |x| = j
cond := subtle.ConstantTimeByteEq(xabs, uint8(j))
dest.Select(&v.points[j-1], dest, cond)
}
// Now dest = |x|*Q, conditionally negate to get x*Q
dest.CondNeg(int(xmask & 1))
}
// Given odd x with 0 < x < 2^4, return x*Q (in variable time).
func (v *nafLookupTable5) SelectInto(dest *projCached, x int8) {
*dest = v.points[x/2]
}
// Given odd x with 0 < x < 2^7, return x*Q (in variable time).
func (v *nafLookupTable8) SelectInto(dest *affineCached, x int8) {
*dest = v.points[x/2]
}

136
vendor/github.com/antchfx/xpath/build.go generated vendored
View File

@ -45,9 +45,28 @@ type builder struct {
// axisPredicate creates a predicate to predicating for this axis node.
func axisPredicate(root *axisNode) func(NodeNavigator) bool {
// get current axix node type.
typ := ElementNode
switch root.AxeType {
case "attribute":
typ = AttributeNode
case "self", "parent":
typ = allNode
default:
switch root.Prop {
case "comment":
typ = CommentNode
case "text":
typ = TextNode
// case "processing-instruction":
// typ = ProcessingInstructionNode
case "node":
typ = allNode
}
}
nametest := root.LocalName != "" || root.Prefix != ""
predicate := func(n NodeNavigator) bool {
if root.typeTest == n.NodeType() || root.typeTest == allNode {
if typ == n.NodeType() || typ == allNode {
if nametest {
type namespaceURL interface {
NamespaceURL() string
@ -83,35 +102,39 @@ func (b *builder) processAxis(root *axisNode, flags flag, props *builderProp) (q
*props = builderProps.None
} else {
inputFlags := flagsEnum.None
if (flags & flagsEnum.Filter) == 0 {
if root.AxisType == "child" && (root.Input.Type() == nodeAxis) {
if input := root.Input.(*axisNode); input.AxisType == "descendant-or-self" {
if root.AxeType == "child" && (root.Input.Type() == nodeAxis) {
if input := root.Input.(*axisNode); input.AxeType == "descendant-or-self" {
var qyGrandInput query
if input.Input != nil {
qyGrandInput, err = b.processNode(input.Input, flagsEnum.SmartDesc, props)
if err != nil {
return nil, err
}
qyGrandInput, _ = b.processNode(input.Input, flagsEnum.SmartDesc, props)
} else {
qyGrandInput = &contextQuery{}
}
qyOutput = &descendantQuery{name: root.LocalName, Input: qyGrandInput, Predicate: predicate, Self: false}
// fix #20: https://github.com/antchfx/htmlquery/issues/20
filter := func(n NodeNavigator) bool {
v := predicate(n)
switch root.Prop {
case "text":
v = v && n.NodeType() == TextNode
case "comment":
v = v && n.NodeType() == CommentNode
}
return v
}
qyOutput = &descendantQuery{name: root.LocalName, Input: qyGrandInput, Predicate: filter, Self: false}
*props |= builderProps.NonFlat
return qyOutput, nil
}
}
if root.AxisType == "descendant" || root.AxisType == "descendant-or-self" {
} else if ((flags & flagsEnum.Filter) == 0) && (root.AxeType == "descendant" || root.AxeType == "descendant-or-self") {
inputFlags |= flagsEnum.SmartDesc
}
}
qyInput, err = b.processNode(root.Input, inputFlags, props)
if err != nil {
return nil, err
}
}
switch root.AxisType {
switch root.AxeType {
case "ancestor":
qyOutput = &ancestorQuery{name: root.LocalName, Input: qyInput, Predicate: predicate}
*props |= builderProps.NonFlat
@ -121,10 +144,22 @@ func (b *builder) processAxis(root *axisNode, flags flag, props *builderProp) (q
case "attribute":
qyOutput = &attributeQuery{name: root.LocalName, Input: qyInput, Predicate: predicate}
case "child":
filter := func(n NodeNavigator) bool {
v := predicate(n)
switch root.Prop {
case "text":
v = v && n.NodeType() == TextNode
case "node":
v = v && (n.NodeType() == ElementNode || n.NodeType() == TextNode)
case "comment":
v = v && n.NodeType() == CommentNode
}
return v
}
if (*props & builderProps.NonFlat) == 0 {
qyOutput = &childQuery{name: root.LocalName, Input: qyInput, Predicate: predicate}
qyOutput = &childQuery{name: root.LocalName, Input: qyInput, Predicate: filter}
} else {
qyOutput = &cachedChildQuery{name: root.LocalName, Input: qyInput, Predicate: predicate}
qyOutput = &cachedChildQuery{name: root.LocalName, Input: qyInput, Predicate: filter}
}
case "descendant":
if (flags & flagsEnum.SmartDesc) != flagsEnum.None {
@ -157,7 +192,7 @@ func (b *builder) processAxis(root *axisNode, flags flag, props *builderProp) (q
case "namespace":
// haha,what will you do someting??
default:
err = fmt.Errorf("unknown axe type: %s", root.AxisType)
err = fmt.Errorf("unknown axe type: %s", root.AxeType)
return nil, err
}
return qyOutput, nil
@ -200,6 +235,7 @@ func (b *builder) processFilter(root *filterNode, flags flag, props *builderProp
*props |= builderProps.PosFilter
}
merge := (qyInput.Properties() & queryProps.Merge) != 0
if (propsCond & builderProps.HasPosition) != builderProps.None {
if (propsCond & builderProps.HasLast) != 0 {
// https://github.com/antchfx/xpath/issues/76
@ -207,15 +243,16 @@ func (b *builder) processFilter(root *filterNode, flags flag, props *builderProp
if qyFunc, ok := cond.(*functionQuery); ok {
switch qyFunc.Input.(type) {
case *filterQuery:
cond = &lastFuncQuery{Input: qyFunc.Input}
cond = &lastQuery{Input: qyFunc.Input}
}
}
}
}
merge := (qyInput.Properties() & queryProps.Merge) != 0
if first && firstInput != nil {
if merge && ((*props & builderProps.PosFilter) != 0) {
qyInput = &filterQuery{Input: qyInput, Predicate: cond, NoPosition: false}
var (
rootQuery = &contextQuery{}
parent query
@ -278,11 +315,10 @@ func (b *builder) processFilter(root *filterNode, flags flag, props *builderProp
}
}
b.firstInput = nil
child := &filterQuery{Input: qyInput, Predicate: cond, NoPosition: false}
if parent != nil {
return &mergeQuery{Input: parent, Child: child}, nil
return &mergeQuery{Input: parent, Child: qyInput}, nil
}
return child, nil
return qyInput, nil
}
b.firstInput = nil
}
@ -307,7 +343,7 @@ func (b *builder) processFunction(root *functionNode, props *builderProp) (query
if err != nil {
return nil, err
}
qyOutput = &functionQuery{Func: lowerCaseFunc(arg)}
qyOutput = &functionQuery{Input: arg, Func: lowerCaseFunc}
case "starts-with":
arg1, err := b.processNode(root.Args[0], flagsEnum.None, props)
if err != nil {
@ -410,17 +446,14 @@ func (b *builder) processFunction(root *functionNode, props *builderProp) (query
}
qyOutput = &functionQuery{Func: stringLengthFunc(arg1)}
case "normalize-space":
var arg node
if len(root.Args) > 0 {
arg = root.Args[0]
} else {
arg = newAxisNode("self", allNode, "", "", "", nil)
if len(root.Args) == 0 {
return nil, errors.New("xpath: normalize-space function must have at least one parameter")
}
arg1, err := b.processNode(arg, flagsEnum.None, props)
argQuery, err := b.processNode(root.Args[0], flagsEnum.None, props)
if err != nil {
return nil, err
}
qyOutput = &functionQuery{Func: normalizespaceFunc(arg1)}
qyOutput = &functionQuery{Input: argQuery, Func: normalizespaceFunc}
case "replace":
//replace( string , string, string )
if len(root.Args) != 3 {
@ -467,7 +500,7 @@ func (b *builder) processFunction(root *functionNode, props *builderProp) (query
if err != nil {
return nil, err
}
qyOutput = &functionQuery{Func: notFunc(argQuery)}
qyOutput = &functionQuery{Input: argQuery, Func: notFunc}
case "name", "local-name", "namespace-uri":
if len(root.Args) > 1 {
return nil, fmt.Errorf("xpath: %s function must have at most one parameter", root.FuncName)
@ -498,10 +531,17 @@ func (b *builder) processFunction(root *functionNode, props *builderProp) (query
},
}
case "last":
qyOutput = &functionQuery{Input: b.firstInput, Func: lastFunc()}
//switch typ := b.firstInput.(type) {
//case *groupQuery, *filterQuery:
// https://github.com/antchfx/xpath/issues/76
// https://github.com/antchfx/xpath/issues/78
//qyOutput = &lastQuery{Input: typ}
//default:
qyOutput = &functionQuery{Func: lastFunc}
//}
*props |= builderProps.HasLast
case "position":
qyOutput = &functionQuery{Input: b.firstInput, Func: positionFunc()}
qyOutput = &functionQuery{Func: positionFunc}
*props |= builderProps.HasPosition
case "boolean", "number", "string":
var inp query
@ -515,14 +555,16 @@ func (b *builder) processFunction(root *functionNode, props *builderProp) (query
}
inp = argQuery
}
f := &functionQuery{Input: inp}
switch root.FuncName {
case "boolean":
qyOutput = &functionQuery{Func: booleanFunc(inp)}
f.Func = booleanFunc
case "string":
qyOutput = &functionQuery{Func: stringFunc(inp)}
f.Func = stringFunc
case "number":
qyOutput = &functionQuery{Func: numberFunc(inp)}
f.Func = numberFunc
}
qyOutput = f
case "count":
if len(root.Args) == 0 {
return nil, fmt.Errorf("xpath: count(node-sets) function must with have parameters node-sets")
@ -531,7 +573,7 @@ func (b *builder) processFunction(root *functionNode, props *builderProp) (query
if err != nil {
return nil, err
}
qyOutput = &functionQuery{Func: countFunc(argQuery)}
qyOutput = &functionQuery{Input: argQuery, Func: countFunc}
case "sum":
if len(root.Args) == 0 {
return nil, fmt.Errorf("xpath: sum(node-sets) function must with have parameters node-sets")
@ -540,7 +582,7 @@ func (b *builder) processFunction(root *functionNode, props *builderProp) (query
if err != nil {
return nil, err
}
qyOutput = &functionQuery{Func: sumFunc(argQuery)}
qyOutput = &functionQuery{Input: argQuery, Func: sumFunc}
case "ceiling", "floor", "round":
if len(root.Args) == 0 {
return nil, fmt.Errorf("xpath: ceiling(node-sets) function must with have parameters node-sets")
@ -549,14 +591,16 @@ func (b *builder) processFunction(root *functionNode, props *builderProp) (query
if err != nil {
return nil, err
}
f := &functionQuery{Input: argQuery}
switch root.FuncName {
case "ceiling":
qyOutput = &functionQuery{Func: ceilingFunc(argQuery)}
f.Func = ceilingFunc
case "floor":
qyOutput = &functionQuery{Func: floorFunc(argQuery)}
f.Func = floorFunc
case "round":
qyOutput = &functionQuery{Func: roundFunc(argQuery)}
f.Func = roundFunc
}
qyOutput = f
case "concat":
if len(root.Args) < 2 {
return nil, fmt.Errorf("xpath: concat() must have at least two arguments")
@ -583,7 +627,7 @@ func (b *builder) processFunction(root *functionNode, props *builderProp) (query
if len(root.Args) != 2 {
return nil, fmt.Errorf("xpath: string-join(node-sets, separator) function requires node-set and argument")
}
input, err := b.processNode(root.Args[0], flagsEnum.None, props)
argQuery, err := b.processNode(root.Args[0], flagsEnum.None, props)
if err != nil {
return nil, err
}
@ -591,10 +635,14 @@ func (b *builder) processFunction(root *functionNode, props *builderProp) (query
if err != nil {
return nil, err
}
qyOutput = &functionQuery{Func: stringJoinFunc(input, arg1)}
qyOutput = &functionQuery{Input: argQuery, Func: stringJoinFunc(arg1)}
default:
return nil, fmt.Errorf("not yet support this function %s()", root.FuncName)
}
if funcQuery, ok := qyOutput.(*functionQuery); ok && funcQuery.Input == nil {
funcQuery.Input = b.firstInput
}
return qyOutput, nil
}
@ -617,7 +665,7 @@ func (b *builder) processOperator(root *operatorNode, props *builderProp) (query
var qyOutput query
switch root.Op {
case "+", "-", "*", "div", "mod": // Numeric operator
var exprFunc func(iterator, interface{}, interface{}) interface{}
var exprFunc func(interface{}, interface{}) interface{}
switch root.Op {
case "+":
exprFunc = plusFunc

108
vendor/github.com/antchfx/xpath/func.go generated vendored
View File

@ -37,8 +37,7 @@ func predicate(q query) func(NodeNavigator) bool {
}
// positionFunc is a XPath Node Set functions position().
func positionFunc() func(query, iterator) interface{} {
return func(q query, t iterator) interface{} {
func positionFunc(q query, t iterator) interface{} {
var (
count = 1
node = t.Current().Copy()
@ -51,17 +50,15 @@ func positionFunc() func(query, iterator) interface{} {
}
return float64(count)
}
}
// lastFunc is a XPath Node Set functions last().
func lastFunc() func(query, iterator) interface{} {
return func(q query, t iterator) interface{} {
func lastFunc(q query, t iterator) interface{} {
var (
count = 0
node = t.Current().Copy()
)
test := predicate(q)
node.MoveToFirst()
test := predicate(q)
for {
if test(node) {
count++
@ -72,13 +69,11 @@ func lastFunc() func(query, iterator) interface{} {
}
return float64(count)
}
}
// countFunc is a XPath Node Set functions count(node-set).
func countFunc(arg query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
func countFunc(q query, t iterator) interface{} {
var count = 0
q := functionArgs(arg)
q = functionArgs(q)
test := predicate(q)
switch typ := q.Evaluate(t).(type) {
case query:
@ -90,13 +85,11 @@ func countFunc(arg query) func(query, iterator) interface{} {
}
return float64(count)
}
}
// sumFunc is a XPath Node Set functions sum(node-set).
func sumFunc(arg query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
func sumFunc(q query, t iterator) interface{} {
var sum float64
switch typ := functionArgs(arg).Evaluate(t).(type) {
switch typ := functionArgs(q).Evaluate(t).(type) {
case query:
for node := typ.Select(t); node != nil; node = typ.Select(t) {
if v, err := strconv.ParseFloat(node.Value(), 64); err == nil {
@ -114,14 +107,13 @@ func sumFunc(arg query) func(query, iterator) interface{} {
}
return sum
}
}
func asNumber(t iterator, o interface{}) float64 {
switch typ := o.(type) {
case query:
node := typ.Select(t)
if node == nil {
return math.NaN()
return float64(0)
}
if v, err := strconv.ParseFloat(node.Value(), 64); err == nil {
return v
@ -138,36 +130,30 @@ func asNumber(t iterator, o interface{}) float64 {
}
// ceilingFunc is a XPath Node Set functions ceiling(node-set).
func ceilingFunc(arg query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
val := asNumber(t, functionArgs(arg).Evaluate(t))
func ceilingFunc(q query, t iterator) interface{} {
val := asNumber(t, functionArgs(q).Evaluate(t))
// if math.IsNaN(val) {
// panic(errors.New("ceiling() function argument type must be a valid number"))
// }
return math.Ceil(val)
}
}
// floorFunc is a XPath Node Set functions floor(node-set).
func floorFunc(arg query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
val := asNumber(t, functionArgs(arg).Evaluate(t))
func floorFunc(q query, t iterator) interface{} {
val := asNumber(t, functionArgs(q).Evaluate(t))
return math.Floor(val)
}
}
// roundFunc is a XPath Node Set functions round(node-set).
func roundFunc(arg query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
val := asNumber(t, functionArgs(arg).Evaluate(t))
func roundFunc(q query, t iterator) interface{} {
val := asNumber(t, functionArgs(q).Evaluate(t))
//return math.Round(val)
return round(val)
}
}
// nameFunc is a XPath functions name([node-set]).
func nameFunc(arg query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
var v NodeNavigator
if arg == nil {
v = t.Current()
@ -187,7 +173,7 @@ func nameFunc(arg query) func(query, iterator) interface{} {
// localNameFunc is a XPath functions local-name([node-set]).
func localNameFunc(arg query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
var v NodeNavigator
if arg == nil {
v = t.Current()
@ -203,7 +189,7 @@ func localNameFunc(arg query) func(query, iterator) interface{} {
// namespaceFunc is a XPath functions namespace-uri([node-set]).
func namespaceFunc(arg query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
var v NodeNavigator
if arg == nil {
v = t.Current()
@ -270,32 +256,26 @@ func asString(t iterator, v interface{}) string {
}
// booleanFunc is a XPath functions boolean([node-set]).
func booleanFunc(arg1 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
v := functionArgs(arg1).Evaluate(t)
func booleanFunc(q query, t iterator) interface{} {
v := functionArgs(q).Evaluate(t)
return asBool(t, v)
}
}
// numberFunc is a XPath functions number([node-set]).
func numberFunc(arg1 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
v := functionArgs(arg1).Evaluate(t)
func numberFunc(q query, t iterator) interface{} {
v := functionArgs(q).Evaluate(t)
return asNumber(t, v)
}
}
// stringFunc is a XPath functions string([node-set]).
func stringFunc(arg1 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
v := functionArgs(arg1).Evaluate(t)
func stringFunc(q query, t iterator) interface{} {
v := functionArgs(q).Evaluate(t)
return asString(t, v)
}
}
// startwithFunc is a XPath functions starts-with(string, string).
func startwithFunc(arg1, arg2 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
var (
m, n string
ok bool
@ -322,7 +302,7 @@ func startwithFunc(arg1, arg2 query) func(query, iterator) interface{} {
// endwithFunc is a XPath functions ends-with(string, string).
func endwithFunc(arg1, arg2 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
var (
m, n string
ok bool
@ -349,7 +329,7 @@ func endwithFunc(arg1, arg2 query) func(query, iterator) interface{} {
// containsFunc is a XPath functions contains(string or @attr, string).
func containsFunc(arg1, arg2 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
var (
m, n string
ok bool
@ -380,7 +360,7 @@ func containsFunc(arg1, arg2 query) func(query, iterator) interface{} {
// Note: does not support https://www.w3.org/TR/xpath-functions-31/#func-matches 3rd optional `flags` argument; if
// needed, directly put flags in the regexp pattern, such as `(?i)^pattern$` for `i` flag.
func matchesFunc(arg1, arg2 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
var s string
switch typ := functionArgs(arg1).Evaluate(t).(type) {
case string:
@ -406,10 +386,9 @@ func matchesFunc(arg1, arg2 query) func(query, iterator) interface{} {
}
// normalizespaceFunc is XPath functions normalize-space(string?)
func normalizespaceFunc(arg1 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
func normalizespaceFunc(q query, t iterator) interface{} {
var m string
switch typ := functionArgs(arg1).Evaluate(t).(type) {
switch typ := functionArgs(q).Evaluate(t).(type) {
case string:
m = typ
case query:
@ -440,11 +419,10 @@ func normalizespaceFunc(arg1 query) func(query, iterator) interface{} {
return result
}
}
// substringFunc is XPath functions substring function returns a part of a given string.
func substringFunc(arg1, arg2, arg3 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
var m string
switch typ := functionArgs(arg1).Evaluate(t).(type) {
case string:
@ -483,7 +461,7 @@ func substringFunc(arg1, arg2, arg3 query) func(query, iterator) interface{} {
// substringIndFunc is XPath functions substring-before/substring-after function returns a part of a given string.
func substringIndFunc(arg1, arg2 query, after bool) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
var str string
switch v := functionArgs(arg1).Evaluate(t).(type) {
case string:
@ -524,7 +502,7 @@ func substringIndFunc(arg1, arg2 query, after bool) func(query, iterator) interf
// stringLengthFunc is XPATH string-length( [string] ) function that returns a number
// equal to the number of characters in a given string.
func stringLengthFunc(arg1 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
switch v := functionArgs(arg1).Evaluate(t).(type) {
case string:
return float64(len(v))
@ -541,7 +519,7 @@ func stringLengthFunc(arg1 query) func(query, iterator) interface{} {
// translateFunc is XPath functions translate() function returns a replaced string.
func translateFunc(arg1, arg2, arg3 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
str := asString(t, functionArgs(arg1).Evaluate(t))
src := asString(t, functionArgs(arg2).Evaluate(t))
dst := asString(t, functionArgs(arg3).Evaluate(t))
@ -560,7 +538,7 @@ func translateFunc(arg1, arg2, arg3 query) func(query, iterator) interface{} {
// replaceFunc is XPath functions replace() function returns a replaced string.
func replaceFunc(arg1, arg2, arg3 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
str := asString(t, functionArgs(arg1).Evaluate(t))
src := asString(t, functionArgs(arg2).Evaluate(t))
dst := asString(t, functionArgs(arg3).Evaluate(t))
@ -570,9 +548,8 @@ func replaceFunc(arg1, arg2, arg3 query) func(query, iterator) interface{} {
}
// notFunc is XPATH functions not(expression) function operation.
func notFunc(arg1 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
switch v := functionArgs(arg1).Evaluate(t).(type) {
func notFunc(q query, t iterator) interface{} {
switch v := functionArgs(q).Evaluate(t).(type) {
case bool:
return !v
case query:
@ -582,13 +559,12 @@ func notFunc(arg1 query) func(query, iterator) interface{} {
return false
}
}
}
// concatFunc is the concat function concatenates two or more
// strings and returns the resulting string.
// concat( string1 , string2 [, stringn]* )
func concatFunc(args ...query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
return func(q query, t iterator) interface{} {
b := builderPool.Get().(stringBuilder)
for _, v := range args {
v = functionArgs(v)
@ -640,8 +616,8 @@ func reverseFunc(q query, t iterator) func() NodeNavigator {
}
// string-join is a XPath Node Set functions string-join(node-set, separator).
func stringJoinFunc(q, arg1 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
func stringJoinFunc(arg1 query) func(query, iterator) interface{} {
return func(q query, t iterator) interface{} {
var separator string
switch v := functionArgs(arg1).Evaluate(t).(type) {
case string:
@ -671,9 +647,7 @@ func stringJoinFunc(q, arg1 query) func(query, iterator) interface{} {
}
// lower-case is XPATH function that converts a string to lower case.
func lowerCaseFunc(arg1 query) func(query, iterator) interface{} {
return func(_ query, t iterator) interface{} {
v := functionArgs(arg1).Evaluate(t)
func lowerCaseFunc(q query, t iterator) interface{} {
v := functionArgs(q).Evaluate(t)
return strings.ToLower(asString(t, v))
}
}

30
vendor/github.com/antchfx/xpath/operator.go generated vendored
View File

@ -1,6 +1,7 @@
package xpath
import (
"reflect"
"strconv"
)
@ -246,43 +247,44 @@ var orFunc = func(t iterator, m, n interface{}) interface{} {
return logicalFuncs[t1][t2](t, "or", m, n)
}
func numericExpr(t iterator, m, n interface{}, cb func(float64, float64) float64) float64 {
a := asNumber(t, m)
b := asNumber(t, n)
return cb(a, b)
func numericExpr(m, n interface{}, cb func(float64, float64) float64) float64 {
typ := reflect.TypeOf(float64(0))
a := reflect.ValueOf(m).Convert(typ)
b := reflect.ValueOf(n).Convert(typ)
return cb(a.Float(), b.Float())
}
// plusFunc is an `+` operator.
var plusFunc = func(t iterator, m, n interface{}) interface{} {
return numericExpr(t, m, n, func(a, b float64) float64 {
var plusFunc = func(m, n interface{}) interface{} {
return numericExpr(m, n, func(a, b float64) float64 {
return a + b
})
}
// minusFunc is an `-` operator.
var minusFunc = func(t iterator, m, n interface{}) interface{} {
return numericExpr(t, m, n, func(a, b float64) float64 {
var minusFunc = func(m, n interface{}) interface{} {
return numericExpr(m, n, func(a, b float64) float64 {
return a - b
})
}
// mulFunc is an `*` operator.
var mulFunc = func(t iterator, m, n interface{}) interface{} {
return numericExpr(t, m, n, func(a, b float64) float64 {
var mulFunc = func(m, n interface{}) interface{} {
return numericExpr(m, n, func(a, b float64) float64 {
return a * b
})
}
// divFunc is an `DIV` operator.
var divFunc = func(t iterator, m, n interface{}) interface{} {
return numericExpr(t, m, n, func(a, b float64) float64 {
var divFunc = func(m, n interface{}) interface{} {
return numericExpr(m, n, func(a, b float64) float64 {
return a / b
})
}
// modFunc is an 'MOD' operator.
var modFunc = func(t iterator, m, n interface{}) interface{} {
return numericExpr(t, m, n, func(a, b float64) float64 {
var modFunc = func(m, n interface{}) interface{} {
return numericExpr(m, n, func(a, b float64) float64 {
return float64(int(a) % int(b))
})
}

88
vendor/github.com/antchfx/xpath/parse.go generated vendored
View File

@ -6,7 +6,6 @@ import (
"fmt"
"strconv"
"unicode"
"unicode/utf8"
)
// A XPath expression token type.
@ -86,13 +85,12 @@ func newOperandNode(v interface{}) node {
}
// newAxisNode returns new axis node AxisNode.
func newAxisNode(axisType string, typeTest NodeType, localName, prefix, prop string, n node, opts ...func(p *axisNode)) node {
func newAxisNode(axeTyp, localName, prefix, prop string, n node, opts ...func(p *axisNode)) node {
a := axisNode{
nodeType: nodeAxis,
typeTest: typeTest,
LocalName: localName,
Prefix: prefix,
AxisType: axisType,
AxeType: axeTyp,
Prop: prop,
Input: n,
}
@ -230,7 +228,6 @@ Loop:
}
// RelationalExpr ::= AdditiveExpr | RelationalExpr '<' AdditiveExpr | RelationalExpr '>' AdditiveExpr
//
// | RelationalExpr '<=' AdditiveExpr
// | RelationalExpr '>=' AdditiveExpr
func (p *parser) parseRelationalExpr(n node) node {
@ -277,7 +274,6 @@ Loop:
}
// MultiplicativeExpr ::= UnaryExpr | MultiplicativeExpr MultiplyOperator(*) UnaryExpr
//
// | MultiplicativeExpr 'div' UnaryExpr | MultiplicativeExpr 'mod' UnaryExpr
func (p *parser) parseMultiplicativeExpr(n node) node {
opnd := p.parseUnaryExpr(n)
@ -339,7 +335,7 @@ func (p *parser) parsePathExpr(n node) node {
opnd = p.parseRelativeLocationPath(opnd)
case itemSlashSlash:
p.next()
opnd = p.parseRelativeLocationPath(newAxisNode("descendant-or-self", allNode, "", "", "", opnd))
opnd = p.parseRelativeLocationPath(newAxisNode("descendant-or-self", "", "", "", opnd))
}
} else {
opnd = p.parseLocationPath(nil)
@ -376,7 +372,7 @@ func (p *parser) parseLocationPath(n node) (opnd node) {
case itemSlashSlash:
p.next()
opnd = newRootNode("//")
opnd = p.parseRelativeLocationPath(newAxisNode("descendant-or-self", allNode, "", "", "", opnd))
opnd = p.parseRelativeLocationPath(newAxisNode("descendant-or-self", "", "", "", opnd))
default:
opnd = p.parseRelativeLocationPath(n)
}
@ -392,7 +388,7 @@ Loop:
switch p.r.typ {
case itemSlashSlash:
p.next()
opnd = newAxisNode("descendant-or-self", allNode, "", "", "", opnd)
opnd = newAxisNode("descendant-or-self", "", "", "", opnd)
case itemSlash:
p.next()
default:
@ -404,33 +400,30 @@ Loop:
// Step ::= AxisSpecifier NodeTest Predicate* | AbbreviatedStep
func (p *parser) parseStep(n node) (opnd node) {
axeTyp := "child" // default axes value.
if p.r.typ == itemDot || p.r.typ == itemDotDot {
if p.r.typ == itemDot {
opnd = newAxisNode("self", allNode, "", "", "", n)
axeTyp = "self"
} else {
opnd = newAxisNode("parent", allNode, "", "", "", n)
axeTyp = "parent"
}
p.next()
opnd = newAxisNode(axeTyp, "", "", "", n)
if p.r.typ != itemLBracket {
return opnd
}
} else {
axisType := "child" // default axes value.
switch p.r.typ {
case itemAt:
axisType = "attribute"
p.next()
axeTyp = "attribute"
case itemAxe:
axisType = p.r.name
axeTyp = p.r.name
p.next()
case itemLParens:
return p.parseSequence(n)
}
matchType := ElementNode
if axisType == "attribute" {
matchType = AttributeNode
}
opnd = p.parseNodeTest(n, axisType, matchType)
opnd = p.parseNodeTest(n, axeTyp)
}
for p.r.typ == itemLBracket {
opnd = newFilterNode(opnd, p.parsePredicate(opnd))
@ -455,7 +448,7 @@ func (p *parser) parseSequence(n node) (opnd node) {
}
// NodeTest ::= NameTest | nodeType '(' ')' | 'processing-instruction' '(' Literal ')'
func (p *parser) parseNodeTest(n node, axeTyp string, matchType NodeType) (opnd node) {
func (p *parser) parseNodeTest(n node, axeTyp string) (opnd node) {
switch p.r.typ {
case itemName:
if p.r.canBeFunc && isNodeType(p.r) {
@ -473,19 +466,7 @@ func (p *parser) parseNodeTest(n node, axeTyp string, matchType NodeType) (opnd
p.next()
}
p.skipItem(itemRParens)
switch prop {
case "comment":
matchType = CommentNode
case "text":
matchType = TextNode
case "processing-instruction":
case "node":
matchType = allNode
default:
matchType = RootNode
}
opnd = newAxisNode(axeTyp, matchType, name, "", prop, n)
opnd = newAxisNode(axeTyp, name, "", prop, n)
} else {
prefix := p.r.prefix
name := p.r.name
@ -493,7 +474,7 @@ func (p *parser) parseNodeTest(n node, axeTyp string, matchType NodeType) (opnd
if p.r.name == "*" {
name = ""
}
opnd = newAxisNode(axeTyp, matchType, name, prefix, "", n, func(a *axisNode) {
opnd = newAxisNode(axeTyp, name, prefix, "", n, func(a *axisNode) {
if prefix != "" && p.namespaces != nil {
if ns, ok := p.namespaces[prefix]; ok {
a.hasNamespaceURI = true
@ -505,7 +486,7 @@ func (p *parser) parseNodeTest(n node, axeTyp string, matchType NodeType) (opnd
})
}
case itemStar:
opnd = newAxisNode(axeTyp, matchType, "", "", "", n)
opnd = newAxisNode(axeTyp, "", "", "", n)
p.next()
default:
panic("expression must evaluate to a node-set")
@ -598,18 +579,17 @@ type axisNode struct {
nodeType
Input node
Prop string // node-test name.[comment|text|processing-instruction|node]
AxisType string // name of the axis.[attribute|ancestor|child|....]
AxeType string // name of the axes.[attribute|ancestor|child|....]
LocalName string // local part name of node.
Prefix string // prefix name of node.
namespaceURI string // namespace URI of node
hasNamespaceURI bool // if namespace URI is set (can be "")
typeTest NodeType
}
func (a *axisNode) String() string {
var b bytes.Buffer
if a.AxisType != "" {
b.Write([]byte(a.AxisType + "::"))
if a.AxeType != "" {
b.Write([]byte(a.AxeType + "::"))
}
if a.Prefix != "" {
b.Write([]byte(a.Prefix + ":"))
@ -692,7 +672,6 @@ type scanner struct {
pos int
curr rune
currSize int
typ itemType
strval string // text value at current pos
numval float64 // number value at current pos
@ -702,18 +681,10 @@ type scanner struct {
func (s *scanner) nextChar() bool {
if s.pos >= len(s.text) {
s.curr = rune(0)
s.currSize = 1
return false
}
r, size := rune(s.text[s.pos]), 1
if r >= 0x80 { // handle multi-byte runes
r, size = utf8.DecodeRuneInString(s.text[s.pos:])
}
s.curr = r
s.currSize = size
s.pos += size
s.curr = rune(s.text[s.pos])
s.pos++
return true
}
@ -872,15 +843,12 @@ func (s *scanner) scanString() string {
end = s.curr
)
s.nextChar()
i := s.pos - s.currSize
if s.currSize > 1 {
c++
}
i := s.pos - 1
for s.curr != end {
if !s.nextChar() {
panic(errors.New("xpath: scanString got unclosed string"))
}
c += s.currSize
c++
}
s.nextChar()
return s.text[i : i+c]
@ -888,18 +856,14 @@ func (s *scanner) scanString() string {
func (s *scanner) scanName() string {
var (
c = s.currSize - 1
i = s.pos - s.currSize
c int
i = s.pos - 1
)
// Detect current rune size
for isName(s.curr) {
c++
if !s.nextChar() {
c += s.currSize
break
}
c += s.currSize
}
return s.text[i : i+c]
}

21
vendor/github.com/antchfx/xpath/query.go generated vendored
View File

@ -850,9 +850,6 @@ func (f *functionQuery) Evaluate(t iterator) interface{} {
}
func (f *functionQuery) Clone() query {
if f.Input == nil {
return &functionQuery{Func: f.Func}
}
return &functionQuery{Input: f.Input.Clone(), Func: f.Func}
}
@ -1002,7 +999,7 @@ func (l *logicalQuery) Properties() queryProp {
type numericQuery struct {
Left, Right query
Do func(iterator, interface{}, interface{}) interface{}
Do func(interface{}, interface{}) interface{}
}
func (n *numericQuery) Select(t iterator) NodeNavigator {
@ -1012,7 +1009,7 @@ func (n *numericQuery) Select(t iterator) NodeNavigator {
func (n *numericQuery) Evaluate(t iterator) interface{} {
m := n.Left.Evaluate(t)
k := n.Right.Evaluate(t)
return n.Do(t, m, k)
return n.Do(m, k)
}
func (n *numericQuery) Clone() query {
@ -1190,18 +1187,18 @@ func (u *unionQuery) Properties() queryProp {
return queryProps.Merge
}
type lastFuncQuery struct {
type lastQuery struct {
buffer []NodeNavigator
counted bool
Input query
}
func (q *lastFuncQuery) Select(t iterator) NodeNavigator {
func (q *lastQuery) Select(t iterator) NodeNavigator {
return nil
}
func (q *lastFuncQuery) Evaluate(t iterator) interface{} {
func (q *lastQuery) Evaluate(t iterator) interface{} {
if !q.counted {
for {
node := q.Input.Select(t)
@ -1215,15 +1212,15 @@ func (q *lastFuncQuery) Evaluate(t iterator) interface{} {
return float64(len(q.buffer))
}
func (q *lastFuncQuery) Clone() query {
return &lastFuncQuery{Input: q.Input.Clone()}
func (q *lastQuery) Clone() query {
return &lastQuery{Input: q.Input.Clone()}
}
func (q *lastFuncQuery) ValueType() resultType {
func (q *lastQuery) ValueType() resultType {
return xpathResultType.Number
}
func (q *lastFuncQuery) Properties() queryProp {
func (q *lastQuery) Properties() queryProp {
return queryProps.Merge
}

13
vendor/github.com/antchfx/xpath/xpath.go generated vendored
View File

@ -74,6 +74,7 @@ type NodeNavigator interface {
type NodeIterator struct {
node NodeNavigator
query query
table map[uint64]bool
}
// Current returns current node which matched.
@ -83,6 +84,7 @@ func (t *NodeIterator) Current() NodeNavigator {
// MoveNext moves Navigator to the next match node.
func (t *NodeIterator) MoveNext() bool {
for {
n := t.query.Select(t)
if n == nil {
return false
@ -90,8 +92,15 @@ func (t *NodeIterator) MoveNext() bool {
if !t.node.MoveTo(n) {
t.node = n.Copy()
}
// https://github.com/antchfx/xpath/issues/94
id := getHashCode(n.Copy())
if _, ok := t.table[id]; ok {
continue
}
t.table[id] = true
return true
}
}
// Select selects a node set using the specified XPath expression.
// This method is deprecated, recommend using Expr.Select() method instead.
@ -121,14 +130,14 @@ func (expr *Expr) Evaluate(root NodeNavigator) interface{} {
val := expr.q.Evaluate(iteratorFunc(func() NodeNavigator { return root }))
switch val.(type) {
case query:
return &NodeIterator{query: expr.q.Clone(), node: root}
return &NodeIterator{query: expr.q.Clone(), node: root, table: make(map[uint64]bool)}
}
return val
}
// Select selects a node set using the specified XPath expression.
func (expr *Expr) Select(root NodeNavigator) *NodeIterator {
return &NodeIterator{query: expr.q.Clone(), node: root}
return &NodeIterator{query: expr.q.Clone(), node: root, table: make(map[uint64]bool)}
}
// String returns XPath expression string.

9
vendor/github.com/go-sql-driver/mysql/.gitignore generated vendored
View File

@ -1,9 +0,0 @@
.DS_Store
.DS_Store?
._*
.Spotlight-V100
.Trashes
Icon?
ehthumbs.db
Thumbs.db
.idea

142
vendor/github.com/go-sql-driver/mysql/AUTHORS generated vendored
View File

@ -1,142 +0,0 @@
# This is the official list of Go-MySQL-Driver authors for copyright purposes.
# If you are submitting a patch, please add your name or the name of the
# organization which holds the copyright to this list in alphabetical order.
# Names should be added to this file as
# Name <email address>
# The email address is not required for organizations.
# Please keep the list sorted.
# Individual Persons
Aaron Hopkins <go-sql-driver at die.net>
Achille Roussel <achille.roussel at gmail.com>
Aidan <aidan.liu at pingcap.com>
Alex Snast <alexsn at fb.com>
Alexey Palazhchenko <alexey.palazhchenko at gmail.com>
Andrew Reid <andrew.reid at tixtrack.com>
Animesh Ray <mail.rayanimesh at gmail.com>
Arne Hormann <arnehormann at gmail.com>
Ariel Mashraki <ariel at mashraki.co.il>
Asta Xie <xiemengjun at gmail.com>
Brian Hendriks <brian at dolthub.com>
Bulat Gaifullin <gaifullinbf at gmail.com>
Caine Jette <jette at alum.mit.edu>
Carlos Nieto <jose.carlos at menteslibres.net>
Chris Kirkland <chriskirkland at github.com>
Chris Moos <chris at tech9computers.com>
Craig Wilson <craiggwilson at gmail.com>
Daemonxiao <735462752 at qq.com>
Daniel Montoya <dsmontoyam at gmail.com>
Daniel Nichter <nil at codenode.com>
Daniël van Eeden <git at myname.nl>
Dave Protasowski <dprotaso at gmail.com>
DisposaBoy <disposaboy at dby.me>
Egor Smolyakov <egorsmkv at gmail.com>
Erwan Martin <hello at erwan.io>
Evan Elias <evan at skeema.net>
Evan Shaw <evan at vendhq.com>
Frederick Mayle <frederickmayle at gmail.com>
Gustavo Kristic <gkristic at gmail.com>
Gusted <postmaster at gusted.xyz>
Hajime Nakagami <nakagami at gmail.com>
Hanno Braun <mail at hannobraun.com>
Henri Yandell <flamefew at gmail.com>
Hirotaka Yamamoto <ymmt2005 at gmail.com>
Huyiguang <hyg at webterren.com>
ICHINOSE Shogo <shogo82148 at gmail.com>
Ilia Cimpoes <ichimpoesh at gmail.com>
INADA Naoki <songofacandy at gmail.com>
Jacek Szwec <szwec.jacek at gmail.com>
James Harr <james.harr at gmail.com>
Janek Vedock <janekvedock at comcast.net>
Jason Ng <oblitorum at gmail.com>
Jean-Yves Pellé <jy at pelle.link>
Jeff Hodges <jeff at somethingsimilar.com>
Jeffrey Charles <jeffreycharles at gmail.com>
Jennifer Purevsuren <jennifer at dolthub.com>
Jerome Meyer <jxmeyer at gmail.com>
Jiajia Zhong <zhong2plus at gmail.com>
Jian Zhen <zhenjl at gmail.com>
Joshua Prunier <joshua.prunier at gmail.com>
Julien Lefevre <julien.lefevr at gmail.com>
Julien Schmidt <go-sql-driver at julienschmidt.com>
Justin Li <jli at j-li.net>
Justin Nuß <nuss.justin at gmail.com>
Kamil Dziedzic <kamil at klecza.pl>
Kei Kamikawa <x00.x7f.x86 at gmail.com>
Kevin Malachowski <kevin at chowski.com>
Kieron Woodhouse <kieron.woodhouse at infosum.com>
Lance Tian <lance6716 at gmail.com>
Lennart Rudolph <lrudolph at hmc.edu>
Leonardo YongUk Kim <dalinaum at gmail.com>
Linh Tran Tuan <linhduonggnu at gmail.com>
Lion Yang <lion at aosc.xyz>
Luca Looz <luca.looz92 at gmail.com>
Lucas Liu <extrafliu at gmail.com>
Lunny Xiao <xiaolunwen at gmail.com>
Luke Scott <luke at webconnex.com>
Maciej Zimnoch <maciej.zimnoch at codilime.com>
Michael Woolnough <michael.woolnough at gmail.com>
Nathanial Murphy <nathanial.murphy at gmail.com>
Nicola Peduzzi <thenikso at gmail.com>
Oliver Bone <owbone at github.com>
Olivier Mengué <dolmen at cpan.org>
oscarzhao <oscarzhaosl at gmail.com>
Paul Bonser <misterpib at gmail.com>
Paulius Lozys <pauliuslozys at gmail.com>
Peter Schultz <peter.schultz at classmarkets.com>
Phil Porada <philporada at gmail.com>
Rebecca Chin <rchin at pivotal.io>
Reed Allman <rdallman10 at gmail.com>
Richard Wilkes <wilkes at me.com>
Robert Russell <robert at rrbrussell.com>
Runrioter Wung <runrioter at gmail.com>
Samantha Frank <hello at entropy.cat>
Santhosh Kumar Tekuri <santhosh.tekuri at gmail.com>
Sho Iizuka <sho.i518 at gmail.com>
Sho Ikeda <suicaicoca at gmail.com>
Shuode Li <elemount at qq.com>
Simon J Mudd <sjmudd at pobox.com>
Soroush Pour <me at soroushjp.com>
Stan Putrya <root.vagner at gmail.com>
Stanley Gunawan <gunawan.stanley at gmail.com>
Steven Hartland <steven.hartland at multiplay.co.uk>
Tan Jinhua <312841925 at qq.com>
Tetsuro Aoki <t.aoki1130 at gmail.com>
Thomas Wodarek <wodarekwebpage at gmail.com>
Tim Ruffles <timruffles at gmail.com>
Tom Jenkinson <tom at tjenkinson.me>
Vladimir Kovpak <cn007b at gmail.com>
Vladyslav Zhelezniak <zhvladi at gmail.com>
Xiangyu Hu <xiangyu.hu at outlook.com>
Xiaobing Jiang <s7v7nislands at gmail.com>
Xiuming Chen <cc at cxm.cc>
Xuehong Chan <chanxuehong at gmail.com>
Zhang Xiang <angwerzx at 126.com>
Zhenye Xie <xiezhenye at gmail.com>
Zhixin Wen <john.wenzhixin at gmail.com>
Ziheng Lyu <zihenglv at gmail.com>
# Organizations
Barracuda Networks, Inc.
Counting Ltd.
DigitalOcean Inc.
Dolthub Inc.
dyves labs AG
Facebook Inc.
GitHub Inc.
Google Inc.
InfoSum Ltd.
Keybase Inc.
Microsoft Corp.
Multiplay Ltd.
Percona LLC
PingCAP Inc.
Pivotal Inc.
Shattered Silicon Ltd.
Stripe Inc.
Zendesk Inc.

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## Version 1.8.1 (2024-03-26)
Bugfixes:
- fix race condition when context is canceled in [#1562](https://github.com/go-sql-driver/mysql/pull/1562) and [#1570](https://github.com/go-sql-driver/mysql/pull/1570)
## Version 1.8.0 (2024-03-09)
Major Changes:
- Use `SET NAMES charset COLLATE collation`. by @methane in [#1437](https://github.com/go-sql-driver/mysql/pull/1437)
- Older go-mysql-driver used `collation_id` in the handshake packet. But it caused collation mismatch in some situation.
- If you don't specify charset nor collation, go-mysql-driver sends `SET NAMES utf8mb4` for new connection. This uses server's default collation for utf8mb4.
- If you specify charset, go-mysql-driver sends `SET NAMES <charset>`. This uses the server's default collation for `<charset>`.
- If you specify collation and/or charset, go-mysql-driver sends `SET NAMES charset COLLATE collation`.
- PathEscape dbname in DSN. by @methane in [#1432](https://github.com/go-sql-driver/mysql/pull/1432)
- This is backward incompatible in rare case. Check your DSN.
- Drop Go 1.13-17 support by @methane in [#1420](https://github.com/go-sql-driver/mysql/pull/1420)
- Use Go 1.18+
- Parse numbers on text protocol too by @methane in [#1452](https://github.com/go-sql-driver/mysql/pull/1452)
- When text protocol is used, go-mysql-driver passed bare `[]byte` to database/sql for avoid unnecessary allocation and conversion.
- If user specified `*any` to `Scan()`, database/sql passed the `[]byte` into the target variable.
- This confused users because most user doesn't know when text/binary protocol used.
- go-mysql-driver 1.8 converts integer/float values into int64/double even in text protocol. This doesn't increase allocation compared to `[]byte` and conversion cost is negatable.
- New options start using the Functional Option Pattern to avoid increasing technical debt in the Config object. Future version may introduce Functional Option for existing options, but not for now.
- Make TimeTruncate functional option by @methane in [1552](https://github.com/go-sql-driver/mysql/pull/1552)
- Add BeforeConnect callback to configuration object by @ItalyPaleAle in [#1469](https://github.com/go-sql-driver/mysql/pull/1469)
Other changes:
- Adding DeregisterDialContext to prevent memory leaks with dialers we don't need anymore by @jypelle in https://github.com/go-sql-driver/mysql/pull/1422
- Make logger configurable per connection by @frozenbonito in https://github.com/go-sql-driver/mysql/pull/1408
- Fix ColumnType.DatabaseTypeName for mediumint unsigned by @evanelias in https://github.com/go-sql-driver/mysql/pull/1428
- Add connection attributes by @Daemonxiao in https://github.com/go-sql-driver/mysql/pull/1389
- Stop `ColumnTypeScanType()` from returning `sql.RawBytes` by @methane in https://github.com/go-sql-driver/mysql/pull/1424
- Exec() now provides access to status of multiple statements. by @mherr-google in https://github.com/go-sql-driver/mysql/pull/1309
- Allow to change (or disable) the default driver name for registration by @dolmen in https://github.com/go-sql-driver/mysql/pull/1499
- Add default connection attribute '_server_host' by @oblitorum in https://github.com/go-sql-driver/mysql/pull/1506
- QueryUnescape DSN ConnectionAttribute value by @zhangyangyu in https://github.com/go-sql-driver/mysql/pull/1470
- Add client_ed25519 authentication by @Gusted in https://github.com/go-sql-driver/mysql/pull/1518
## Version 1.7.1 (2023-04-25)
Changes:
- bump actions/checkout@v3 and actions/setup-go@v3 (#1375)
- Add go1.20 and mariadb10.11 to the testing matrix (#1403)
- Increase default maxAllowedPacket size. (#1411)
Bugfixes:
- Use SET syntax as specified in the MySQL documentation (#1402)
## Version 1.7 (2022-11-29)
Changes:
- Drop support of Go 1.12 (#1211)
- Refactoring `(*textRows).readRow` in a more clear way (#1230)
- util: Reduce boundary check in escape functions. (#1316)
- enhancement for mysqlConn handleAuthResult (#1250)
New Features:
- support Is comparison on MySQLError (#1210)
- return unsigned in database type name when necessary (#1238)
- Add API to express like a --ssl-mode=PREFERRED MySQL client (#1370)
- Add SQLState to MySQLError (#1321)
Bugfixes:
- Fix parsing 0 year. (#1257)
## Version 1.6 (2021-04-01)
Changes:
- Migrate the CI service from travis-ci to GitHub Actions (#1176, #1183, #1190)
- `NullTime` is deprecated (#960, #1144)
- Reduce allocations when building SET command (#1111)
- Performance improvement for time formatting (#1118)
- Performance improvement for time parsing (#1098, #1113)
New Features:
- Implement `driver.Validator` interface (#1106, #1174)
- Support returning `uint64` from `Valuer` in `ConvertValue` (#1143)
- Add `json.RawMessage` for converter and prepared statement (#1059)
- Interpolate `json.RawMessage` as `string` (#1058)
- Implements `CheckNamedValue` (#1090)
Bugfixes:
- Stop rounding times (#1121, #1172)
- Put zero filler into the SSL handshake packet (#1066)
- Fix checking cancelled connections back into the connection pool (#1095)
- Fix remove last 0 byte for mysql_old_password when password is empty (#1133)
## Version 1.5 (2020-01-07)
Changes:
- Dropped support Go 1.9 and lower (#823, #829, #886, #1016, #1017)
- Improve buffer handling (#890)
- Document potentially insecure TLS configs (#901)
- Use a double-buffering scheme to prevent data races (#943)
- Pass uint64 values without converting them to string (#838, #955)
- Update collations and make utf8mb4 default (#877, #1054)
- Make NullTime compatible with sql.NullTime in Go 1.13+ (#995)
- Removed CloudSQL support (#993, #1007)
- Add Go Module support (#1003)
New Features:
- Implement support of optional TLS (#900)
- Check connection liveness (#934, #964, #997, #1048, #1051, #1052)
- Implement Connector Interface (#941, #958, #1020, #1035)
Bugfixes:
- Mark connections as bad on error during ping (#875)
- Mark connections as bad on error during dial (#867)
- Fix connection leak caused by rapid context cancellation (#1024)
- Mark connections as bad on error during Conn.Prepare (#1030)
## Version 1.4.1 (2018-11-14)
Bugfixes:
- Fix TIME format for binary columns (#818)
- Fix handling of empty auth plugin names (#835)
- Fix caching_sha2_password with empty password (#826)
- Fix canceled context broke mysqlConn (#862)
- Fix OldAuthSwitchRequest support (#870)
- Fix Auth Response packet for cleartext password (#887)
## Version 1.4 (2018-06-03)
Changes:
- Documentation fixes (#530, #535, #567)
- Refactoring (#575, #579, #580, #581, #603, #615, #704)
- Cache column names (#444)
- Sort the DSN parameters in DSNs generated from a config (#637)
- Allow native password authentication by default (#644)
- Use the default port if it is missing in the DSN (#668)
- Removed the `strict` mode (#676)
- Do not query `max_allowed_packet` by default (#680)
- Dropped support Go 1.6 and lower (#696)
- Updated `ConvertValue()` to match the database/sql/driver implementation (#760)
- Document the usage of `0000-00-00T00:00:00` as the time.Time zero value (#783)
- Improved the compatibility of the authentication system (#807)
New Features:
- Multi-Results support (#537)
- `rejectReadOnly` DSN option (#604)
- `context.Context` support (#608, #612, #627, #761)
- Transaction isolation level support (#619, #744)
- Read-Only transactions support (#618, #634)
- `NewConfig` function which initializes a config with default values (#679)
- Implemented the `ColumnType` interfaces (#667, #724)
- Support for custom string types in `ConvertValue` (#623)
- Implemented `NamedValueChecker`, improving support for uint64 with high bit set (#690, #709, #710)
- `caching_sha2_password` authentication plugin support (#794, #800, #801, #802)
- Implemented `driver.SessionResetter` (#779)
- `sha256_password` authentication plugin support (#808)
Bugfixes:
- Use the DSN hostname as TLS default ServerName if `tls=true` (#564, #718)
- Fixed LOAD LOCAL DATA INFILE for empty files (#590)
- Removed columns definition cache since it sometimes cached invalid data (#592)
- Don't mutate registered TLS configs (#600)
- Make RegisterTLSConfig concurrency-safe (#613)
- Handle missing auth data in the handshake packet correctly (#646)
- Do not retry queries when data was written to avoid data corruption (#302, #736)
- Cache the connection pointer for error handling before invalidating it (#678)
- Fixed imports for appengine/cloudsql (#700)
- Fix sending STMT_LONG_DATA for 0 byte data (#734)
- Set correct capacity for []bytes read from length-encoded strings (#766)
- Make RegisterDial concurrency-safe (#773)
## Version 1.3 (2016-12-01)
Changes:
- Go 1.1 is no longer supported
- Use decimals fields in MySQL to format time types (#249)
- Buffer optimizations (#269)
- TLS ServerName defaults to the host (#283)
- Refactoring (#400, #410, #437)
- Adjusted documentation for second generation CloudSQL (#485)
- Documented DSN system var quoting rules (#502)
- Made statement.Close() calls idempotent to avoid errors in Go 1.6+ (#512)
New Features:
- Enable microsecond resolution on TIME, DATETIME and TIMESTAMP (#249)
- Support for returning table alias on Columns() (#289, #359, #382)
- Placeholder interpolation, can be activated with the DSN parameter `interpolateParams=true` (#309, #318, #490)
- Support for uint64 parameters with high bit set (#332, #345)
- Cleartext authentication plugin support (#327)
- Exported ParseDSN function and the Config struct (#403, #419, #429)
- Read / Write timeouts (#401)
- Support for JSON field type (#414)
- Support for multi-statements and multi-results (#411, #431)
- DSN parameter to set the driver-side max_allowed_packet value manually (#489)
- Native password authentication plugin support (#494, #524)
Bugfixes:
- Fixed handling of queries without columns and rows (#255)
- Fixed a panic when SetKeepAlive() failed (#298)
- Handle ERR packets while reading rows (#321)
- Fixed reading NULL length-encoded integers in MySQL 5.6+ (#349)
- Fixed absolute paths support in LOAD LOCAL DATA INFILE (#356)
- Actually zero out bytes in handshake response (#378)
- Fixed race condition in registering LOAD DATA INFILE handler (#383)
- Fixed tests with MySQL 5.7.9+ (#380)
- QueryUnescape TLS config names (#397)
- Fixed "broken pipe" error by writing to closed socket (#390)
- Fixed LOAD LOCAL DATA INFILE buffering (#424)
- Fixed parsing of floats into float64 when placeholders are used (#434)
- Fixed DSN tests with Go 1.7+ (#459)
- Handle ERR packets while waiting for EOF (#473)
- Invalidate connection on error while discarding additional results (#513)
- Allow terminating packets of length 0 (#516)
## Version 1.2 (2014-06-03)
Changes:
- We switched back to a "rolling release". `go get` installs the current master branch again
- Version v1 of the driver will not be maintained anymore. Go 1.0 is no longer supported by this driver
- Exported errors to allow easy checking from application code
- Enabled TCP Keepalives on TCP connections
- Optimized INFILE handling (better buffer size calculation, lazy init, ...)
- The DSN parser also checks for a missing separating slash
- Faster binary date / datetime to string formatting
- Also exported the MySQLWarning type
- mysqlConn.Close returns the first error encountered instead of ignoring all errors
- writePacket() automatically writes the packet size to the header
- readPacket() uses an iterative approach instead of the recursive approach to merge split packets
New Features:
- `RegisterDial` allows the usage of a custom dial function to establish the network connection
- Setting the connection collation is possible with the `collation` DSN parameter. This parameter should be preferred over the `charset` parameter
- Logging of critical errors is configurable with `SetLogger`
- Google CloudSQL support
Bugfixes:
- Allow more than 32 parameters in prepared statements
- Various old_password fixes
- Fixed TestConcurrent test to pass Go's race detection
- Fixed appendLengthEncodedInteger for large numbers
- Renamed readLengthEnodedString to readLengthEncodedString and skipLengthEnodedString to skipLengthEncodedString (fixed typo)
## Version 1.1 (2013-11-02)
Changes:
- Go-MySQL-Driver now requires Go 1.1
- Connections now use the collation `utf8_general_ci` by default. Adding `&charset=UTF8` to the DSN should not be necessary anymore
- Made closing rows and connections error tolerant. This allows for example deferring rows.Close() without checking for errors
- `[]byte(nil)` is now treated as a NULL value. Before, it was treated like an empty string / `[]byte("")`
- DSN parameter values must now be url.QueryEscape'ed. This allows text values to contain special characters, such as '&'.
- Use the IO buffer also for writing. This results in zero allocations (by the driver) for most queries
- Optimized the buffer for reading
- stmt.Query now caches column metadata
- New Logo
- Changed the copyright header to include all contributors
- Improved the LOAD INFILE documentation
- The driver struct is now exported to make the driver directly accessible
- Refactored the driver tests
- Added more benchmarks and moved all to a separate file
- Other small refactoring
New Features:
- Added *old_passwords* support: Required in some cases, but must be enabled by adding `allowOldPasswords=true` to the DSN since it is insecure
- Added a `clientFoundRows` parameter: Return the number of matching rows instead of the number of rows changed on UPDATEs
- Added TLS/SSL support: Use a TLS/SSL encrypted connection to the server. Custom TLS configs can be registered and used
Bugfixes:
- Fixed MySQL 4.1 support: MySQL 4.1 sends packets with lengths which differ from the specification
- Convert to DB timezone when inserting `time.Time`
- Split packets (more than 16MB) are now merged correctly
- Fixed false positive `io.EOF` errors when the data was fully read
- Avoid panics on reuse of closed connections
- Fixed empty string producing false nil values
- Fixed sign byte for positive TIME fields
## Version 1.0 (2013-05-14)
Initial Release

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Mozilla Public License Version 2.0
==================================
1. Definitions
--------------
1.1. "Contributor"
means each individual or legal entity that creates, contributes to
the creation of, or owns Covered Software.
1.2. "Contributor Version"
means the combination of the Contributions of others (if any) used
by a Contributor and that particular Contributor's Contribution.
1.3. "Contribution"
means Covered Software of a particular Contributor.
1.4. "Covered Software"
means Source Code Form to which the initial Contributor has attached
the notice in Exhibit A, the Executable Form of such Source Code
Form, and Modifications of such Source Code Form, in each case
including portions thereof.
1.5. "Incompatible With Secondary Licenses"
means
(a) that the initial Contributor has attached the notice described
in Exhibit B to the Covered Software; or
(b) that the Covered Software was made available under the terms of
version 1.1 or earlier of the License, but not also under the
terms of a Secondary License.
1.6. "Executable Form"
means any form of the work other than Source Code Form.
1.7. "Larger Work"
means a work that combines Covered Software with other material, in
a separate file or files, that is not Covered Software.
1.8. "License"
means this document.
1.9. "Licensable"
means having the right to grant, to the maximum extent possible,
whether at the time of the initial grant or subsequently, any and
all of the rights conveyed by this License.
1.10. "Modifications"
means any of the following:
(a) any file in Source Code Form that results from an addition to,
deletion from, or modification of the contents of Covered
Software; or
(b) any new file in Source Code Form that contains any Covered
Software.
1.11. "Patent Claims" of a Contributor
means any patent claim(s), including without limitation, method,
process, and apparatus claims, in any patent Licensable by such
Contributor that would be infringed, but for the grant of the
License, by the making, using, selling, offering for sale, having
made, import, or transfer of either its Contributions or its
Contributor Version.
1.12. "Secondary License"
means either the GNU General Public License, Version 2.0, the GNU
Lesser General Public License, Version 2.1, the GNU Affero General
Public License, Version 3.0, or any later versions of those
licenses.
1.13. "Source Code Form"
means the form of the work preferred for making modifications.
1.14. "You" (or "Your")
means an individual or a legal entity exercising rights under this
License. For legal entities, "You" includes any entity that
controls, is controlled by, or is under common control with You. For
purposes of this definition, "control" means (a) the power, direct
or indirect, to cause the direction or management of such entity,
whether by contract or otherwise, or (b) ownership of more than
fifty percent (50%) of the outstanding shares or beneficial
ownership of such entity.
2. License Grants and Conditions
--------------------------------
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
(a) under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or
as part of a Larger Work; and
(b) under Patent Claims of such Contributor to make, use, sell, offer
for sale, have made, import, and otherwise transfer either its
Contributions or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
Notwithstanding Section 2.1(b) above, no patent license is granted by a
Contributor:
(a) for any code that a Contributor has removed from Covered Software;
or
(b) for infringements caused by: (i) Your and any other third party's
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
(c) under Patent Claims infringed by Covered Software in the absence of
its Contributions.
This License does not grant any rights in the trademarks, service marks,
or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this
License (see Section 10.2) or under the terms of a Secondary License (if
permitted under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its
Contributions are its original creation(s) or it has sufficient rights
to grant the rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
in Section 2.1.
3. Responsibilities
-------------------
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under
the terms of this License. You must inform recipients that the Source
Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
attempt to alter or restrict the recipients' rights in the Source Code
Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
(a) such Covered Software must also be made available in Source Code
Form, as described in Section 3.1, and You must inform recipients of
the Executable Form how they can obtain a copy of such Source Code
Form by reasonable means in a timely manner, at a charge no more
than the cost of distribution to the recipient; and
(b) You may distribute such Executable Form under the terms of this
License, or sublicense it under different terms, provided that the
license for the Executable Form does not attempt to limit or alter
the recipients' rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of
the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
License(s).
3.4. Notices
You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
or limitations of liability) contained within the Source Code Form of
the Covered Software, except that You may alter any license notices to
the extent required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
---------------------------------------------------
If it is impossible for You to comply with any of the terms of this
License with respect to some or all of the Covered Software due to
statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description must
be placed in a text file included with all distributions of the Covered
Software under this License. Except to the extent prohibited by statute
or regulation, such description must be sufficiently detailed for a
recipient of ordinary skill to be able to understand it.
5. Termination
--------------
5.1. The rights granted under this License will terminate automatically
if You fail to comply with any of its terms. However, if You become
compliant, then the rights granted under this License from a particular
Contributor are reinstated (a) provisionally, unless and until such
Contributor explicitly and finally terminates Your grants, and (b) on an
ongoing basis, if such Contributor fails to notify You of the
non-compliance by some reasonable means prior to 60 days after You have
come back into compliance. Moreover, Your grants from a particular
Contributor are reinstated on an ongoing basis if such Contributor
notifies You of the non-compliance by some reasonable means, this is the
first time You have received notice of non-compliance with this License
from such Contributor, and You become compliant prior to 30 days after
Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions,
counter-claims, and cross-claims) alleging that a Contributor Version
directly or indirectly infringes any patent, then the rights granted to
You by any and all Contributors for the Covered Software under Section
2.1 of this License shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
end user license agreements (excluding distributors and resellers) which
have been validly granted by You or Your distributors under this License
prior to termination shall survive termination.
************************************************************************
* *
* 6. Disclaimer of Warranty *
* ------------------------- *
* *
* Covered Software is provided under this License on an "as is" *
* basis, without warranty of any kind, either expressed, implied, or *
* statutory, including, without limitation, warranties that the *
* Covered Software is free of defects, merchantable, fit for a *
* particular purpose or non-infringing. The entire risk as to the *
* quality and performance of the Covered Software is with You. *
* Should any Covered Software prove defective in any respect, You *
* (not any Contributor) assume the cost of any necessary servicing, *
* repair, or correction. This disclaimer of warranty constitutes an *
* essential part of this License. No use of any Covered Software is *
* authorized under this License except under this disclaimer. *
* *
************************************************************************
************************************************************************
* *
* 7. Limitation of Liability *
* -------------------------- *
* *
* Under no circumstances and under no legal theory, whether tort *
* (including negligence), contract, or otherwise, shall any *
* Contributor, or anyone who distributes Covered Software as *
* permitted above, be liable to You for any direct, indirect, *
* special, incidental, or consequential damages of any character *
* including, without limitation, damages for lost profits, loss of *
* goodwill, work stoppage, computer failure or malfunction, or any *
* and all other commercial damages or losses, even if such party *
* shall have been informed of the possibility of such damages. This *
* limitation of liability shall not apply to liability for death or *
* personal injury resulting from such party's negligence to the *
* extent applicable law prohibits such limitation. Some *
* jurisdictions do not allow the exclusion or limitation of *
* incidental or consequential damages, so this exclusion and *
* limitation may not apply to You. *
* *
************************************************************************
8. Litigation
-------------
Any litigation relating to this License may be brought only in the
courts of a jurisdiction where the defendant maintains its principal
place of business and such litigation shall be governed by laws of that
jurisdiction, without reference to its conflict-of-law provisions.
Nothing in this Section shall prevent a party's ability to bring
cross-claims or counter-claims.
9. Miscellaneous
----------------
This License represents the complete agreement concerning the subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. Any law or regulation which provides
that the language of a contract shall be construed against the drafter
shall not be used to construe this License against a Contributor.
10. Versions of the License
---------------------------
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version
of the License under which You originally received the Covered Software,
or under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a
modified version of this License if you rename the license and remove
any references to the name of the license steward (except to note that
such modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary
Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
-------------------------------------------
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular
file, then You may include the notice in a location (such as a LICENSE
file in a relevant directory) where a recipient would be likely to look
for such a notice.
You may add additional accurate notices of copyright ownership.
Exhibit B - "Incompatible With Secondary Licenses" Notice
---------------------------------------------------------
This Source Code Form is "Incompatible With Secondary Licenses", as
defined by the Mozilla Public License, v. 2.0.

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# Go-MySQL-Driver
A MySQL-Driver for Go's [database/sql](https://golang.org/pkg/database/sql/) package
![Go-MySQL-Driver logo](https://raw.github.com/wiki/go-sql-driver/mysql/gomysql_m.png "Golang Gopher holding the MySQL Dolphin")
---------------------------------------
* [Features](#features)
* [Requirements](#requirements)
* [Installation](#installation)
* [Usage](#usage)
* [DSN (Data Source Name)](#dsn-data-source-name)
* [Password](#password)
* [Protocol](#protocol)
* [Address](#address)
* [Parameters](#parameters)
* [Examples](#examples)
* [Connection pool and timeouts](#connection-pool-and-timeouts)
* [context.Context Support](#contextcontext-support)
* [ColumnType Support](#columntype-support)
* [LOAD DATA LOCAL INFILE support](#load-data-local-infile-support)
* [time.Time support](#timetime-support)
* [Unicode support](#unicode-support)
* [Testing / Development](#testing--development)
* [License](#license)
---------------------------------------
## Features
* Lightweight and [fast](https://github.com/go-sql-driver/sql-benchmark "golang MySQL-Driver performance")
* Native Go implementation. No C-bindings, just pure Go
* Connections over TCP/IPv4, TCP/IPv6, Unix domain sockets or [custom protocols](https://godoc.org/github.com/go-sql-driver/mysql#DialFunc)
* Automatic handling of broken connections
* Automatic Connection Pooling *(by database/sql package)*
* Supports queries larger than 16MB
* Full [`sql.RawBytes`](https://golang.org/pkg/database/sql/#RawBytes) support.
* Intelligent `LONG DATA` handling in prepared statements
* Secure `LOAD DATA LOCAL INFILE` support with file allowlisting and `io.Reader` support
* Optional `time.Time` parsing
* Optional placeholder interpolation
## Requirements
* Go 1.19 or higher. We aim to support the 3 latest versions of Go.
* MySQL (5.7+) and MariaDB (10.3+) are supported.
* [TiDB](https://github.com/pingcap/tidb) is supported by PingCAP.
* Do not ask questions about TiDB in our issue tracker or forum.
* [Document](https://docs.pingcap.com/tidb/v6.1/dev-guide-sample-application-golang)
* [Forum](https://ask.pingcap.com/)
* go-mysql would work with Percona Server, Google CloudSQL or Sphinx (2.2.3+).
* Maintainers won't support them. Do not expect issues are investigated and resolved by maintainers.
* Investigate issues yourself and please send a pull request to fix it.
---------------------------------------
## Installation
Simple install the package to your [$GOPATH](https://github.com/golang/go/wiki/GOPATH "GOPATH") with the [go tool](https://golang.org/cmd/go/ "go command") from shell:
```bash
go get -u github.com/go-sql-driver/mysql
```
Make sure [Git is installed](https://git-scm.com/downloads) on your machine and in your system's `PATH`.
## Usage
_Go MySQL Driver_ is an implementation of Go's `database/sql/driver` interface. You only need to import the driver and can use the full [`database/sql`](https://golang.org/pkg/database/sql/) API then.
Use `mysql` as `driverName` and a valid [DSN](#dsn-data-source-name) as `dataSourceName`:
```go
import (
"database/sql"
"time"
_ "github.com/go-sql-driver/mysql"
)
// ...
db, err := sql.Open("mysql", "user:password@/dbname")
if err != nil {
panic(err)
}
// See "Important settings" section.
db.SetConnMaxLifetime(time.Minute * 3)
db.SetMaxOpenConns(10)
db.SetMaxIdleConns(10)
```
[Examples are available in our Wiki](https://github.com/go-sql-driver/mysql/wiki/Examples "Go-MySQL-Driver Examples").
### Important settings
`db.SetConnMaxLifetime()` is required to ensure connections are closed by the driver safely before connection is closed by MySQL server, OS, or other middlewares. Since some middlewares close idle connections by 5 minutes, we recommend timeout shorter than 5 minutes. This setting helps load balancing and changing system variables too.
`db.SetMaxOpenConns()` is highly recommended to limit the number of connection used by the application. There is no recommended limit number because it depends on application and MySQL server.
`db.SetMaxIdleConns()` is recommended to be set same to `db.SetMaxOpenConns()`. When it is smaller than `SetMaxOpenConns()`, connections can be opened and closed much more frequently than you expect. Idle connections can be closed by the `db.SetConnMaxLifetime()`. If you want to close idle connections more rapidly, you can use `db.SetConnMaxIdleTime()` since Go 1.15.
### DSN (Data Source Name)
The Data Source Name has a common format, like e.g. [PEAR DB](http://pear.php.net/manual/en/package.database.db.intro-dsn.php) uses it, but without type-prefix (optional parts marked by squared brackets):
```
[username[:password]@][protocol[(address)]]/dbname[?param1=value1&...&paramN=valueN]
```
A DSN in its fullest form:
```
username:password@protocol(address)/dbname?param=value
```
Except for the databasename, all values are optional. So the minimal DSN is:
```
/dbname
```
If you do not want to preselect a database, leave `dbname` empty:
```
/
```
This has the same effect as an empty DSN string:
```
```
`dbname` is escaped by [PathEscape()](https://pkg.go.dev/net/url#PathEscape) since v1.8.0. If your database name is `dbname/withslash`, it becomes:
```
/dbname%2Fwithslash
```
Alternatively, [Config.FormatDSN](https://godoc.org/github.com/go-sql-driver/mysql#Config.FormatDSN) can be used to create a DSN string by filling a struct.
#### Password
Passwords can consist of any character. Escaping is **not** necessary.
#### Protocol
See [net.Dial](https://golang.org/pkg/net/#Dial) for more information which networks are available.
In general you should use a Unix domain socket if available and TCP otherwise for best performance.
#### Address
For TCP and UDP networks, addresses have the form `host[:port]`.
If `port` is omitted, the default port will be used.
If `host` is a literal IPv6 address, it must be enclosed in square brackets.
The functions [net.JoinHostPort](https://golang.org/pkg/net/#JoinHostPort) and [net.SplitHostPort](https://golang.org/pkg/net/#SplitHostPort) manipulate addresses in this form.
For Unix domain sockets the address is the absolute path to the MySQL-Server-socket, e.g. `/var/run/mysqld/mysqld.sock` or `/tmp/mysql.sock`.
#### Parameters
*Parameters are case-sensitive!*
Notice that any of `true`, `TRUE`, `True` or `1` is accepted to stand for a true boolean value. Not surprisingly, false can be specified as any of: `false`, `FALSE`, `False` or `0`.
##### `allowAllFiles`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowAllFiles=true` disables the file allowlist for `LOAD DATA LOCAL INFILE` and allows *all* files.
[*Might be insecure!*](https://dev.mysql.com/doc/refman/8.0/en/load-data.html#load-data-local)
##### `allowCleartextPasswords`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowCleartextPasswords=true` allows using the [cleartext client side plugin](https://dev.mysql.com/doc/en/cleartext-pluggable-authentication.html) if required by an account, such as one defined with the [PAM authentication plugin](http://dev.mysql.com/doc/en/pam-authentication-plugin.html). Sending passwords in clear text may be a security problem in some configurations. To avoid problems if there is any possibility that the password would be intercepted, clients should connect to MySQL Server using a method that protects the password. Possibilities include [TLS / SSL](#tls), IPsec, or a private network.
##### `allowFallbackToPlaintext`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowFallbackToPlaintext=true` acts like a `--ssl-mode=PREFERRED` MySQL client as described in [Command Options for Connecting to the Server](https://dev.mysql.com/doc/refman/5.7/en/connection-options.html#option_general_ssl-mode)
##### `allowNativePasswords`
```
Type: bool
Valid Values: true, false
Default: true
```
`allowNativePasswords=false` disallows the usage of MySQL native password method.
##### `allowOldPasswords`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowOldPasswords=true` allows the usage of the insecure old password method. This should be avoided, but is necessary in some cases. See also [the old_passwords wiki page](https://github.com/go-sql-driver/mysql/wiki/old_passwords).
##### `charset`
```
Type: string
Valid Values: <name>
Default: none
```
Sets the charset used for client-server interaction (`"SET NAMES <value>"`). If multiple charsets are set (separated by a comma), the following charset is used if setting the charset fails. This enables for example support for `utf8mb4` ([introduced in MySQL 5.5.3](http://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8mb4.html)) with fallback to `utf8` for older servers (`charset=utf8mb4,utf8`).
See also [Unicode Support](#unicode-support).
##### `checkConnLiveness`
```
Type: bool
Valid Values: true, false
Default: true
```
On supported platforms connections retrieved from the connection pool are checked for liveness before using them. If the check fails, the respective connection is marked as bad and the query retried with another connection.
`checkConnLiveness=false` disables this liveness check of connections.
##### `collation`
```
Type: string
Valid Values: <name>
Default: utf8mb4_general_ci
```
Sets the collation used for client-server interaction on connection. In contrast to `charset`, `collation` does not issue additional queries. If the specified collation is unavailable on the target server, the connection will fail.
A list of valid charsets for a server is retrievable with `SHOW COLLATION`.
The default collation (`utf8mb4_general_ci`) is supported from MySQL 5.5. You should use an older collation (e.g. `utf8_general_ci`) for older MySQL.
Collations for charset "ucs2", "utf16", "utf16le", and "utf32" can not be used ([ref](https://dev.mysql.com/doc/refman/5.7/en/charset-connection.html#charset-connection-impermissible-client-charset)).
See also [Unicode Support](#unicode-support).
##### `clientFoundRows`
```
Type: bool
Valid Values: true, false
Default: false
```
`clientFoundRows=true` causes an UPDATE to return the number of matching rows instead of the number of rows changed.
##### `columnsWithAlias`
```
Type: bool
Valid Values: true, false
Default: false
```
When `columnsWithAlias` is true, calls to `sql.Rows.Columns()` will return the table alias and the column name separated by a dot. For example:
```
SELECT u.id FROM users as u
```
will return `u.id` instead of just `id` if `columnsWithAlias=true`.
##### `interpolateParams`
```
Type: bool
Valid Values: true, false
Default: false
```
If `interpolateParams` is true, placeholders (`?`) in calls to `db.Query()` and `db.Exec()` are interpolated into a single query string with given parameters. This reduces the number of roundtrips, since the driver has to prepare a statement, execute it with given parameters and close the statement again with `interpolateParams=false`.
*This can not be used together with the multibyte encodings BIG5, CP932, GB2312, GBK or SJIS. These are rejected as they may [introduce a SQL injection vulnerability](http://stackoverflow.com/a/12118602/3430118)!*
##### `loc`
```
Type: string
Valid Values: <escaped name>
Default: UTC
```
Sets the location for time.Time values (when using `parseTime=true`). *"Local"* sets the system's location. See [time.LoadLocation](https://golang.org/pkg/time/#LoadLocation) for details.
Note that this sets the location for time.Time values but does not change MySQL's [time_zone setting](https://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html). For that see the [time_zone system variable](#system-variables), which can also be set as a DSN parameter.
Please keep in mind, that param values must be [url.QueryEscape](https://golang.org/pkg/net/url/#QueryEscape)'ed. Alternatively you can manually replace the `/` with `%2F`. For example `US/Pacific` would be `loc=US%2FPacific`.
##### `timeTruncate`
```
Type: duration
Default: 0
```
[Truncate time values](https://pkg.go.dev/time#Duration.Truncate) to the specified duration. The value must be a decimal number with a unit suffix (*"ms"*, *"s"*, *"m"*, *"h"*), such as *"30s"*, *"0.5m"* or *"1m30s"*.
##### `maxAllowedPacket`
```
Type: decimal number
Default: 64*1024*1024
```
Max packet size allowed in bytes. The default value is 64 MiB and should be adjusted to match the server settings. `maxAllowedPacket=0` can be used to automatically fetch the `max_allowed_packet` variable from server *on every connection*.
##### `multiStatements`
```
Type: bool
Valid Values: true, false
Default: false
```
Allow multiple statements in one query. This can be used to bach multiple queries. Use [Rows.NextResultSet()](https://pkg.go.dev/database/sql#Rows.NextResultSet) to get result of the second and subsequent queries.
When `multiStatements` is used, `?` parameters must only be used in the first statement. [interpolateParams](#interpolateparams) can be used to avoid this limitation unless prepared statement is used explicitly.
It's possible to access the last inserted ID and number of affected rows for multiple statements by using `sql.Conn.Raw()` and the `mysql.Result`. For example:
```go
conn, _ := db.Conn(ctx)
conn.Raw(func(conn any) error {
ex := conn.(driver.Execer)
res, err := ex.Exec(`
UPDATE point SET x = 1 WHERE y = 2;
UPDATE point SET x = 2 WHERE y = 3;
`, nil)
// Both slices have 2 elements.
log.Print(res.(mysql.Result).AllRowsAffected())
log.Print(res.(mysql.Result).AllLastInsertIds())
})
```
##### `parseTime`
```
Type: bool
Valid Values: true, false
Default: false
```
`parseTime=true` changes the output type of `DATE` and `DATETIME` values to `time.Time` instead of `[]byte` / `string`
The date or datetime like `0000-00-00 00:00:00` is converted into zero value of `time.Time`.
##### `readTimeout`
```
Type: duration
Default: 0
```
I/O read timeout. The value must be a decimal number with a unit suffix (*"ms"*, *"s"*, *"m"*, *"h"*), such as *"30s"*, *"0.5m"* or *"1m30s"*.
##### `rejectReadOnly`
```
Type: bool
Valid Values: true, false
Default: false
```
`rejectReadOnly=true` causes the driver to reject read-only connections. This
is for a possible race condition during an automatic failover, where the mysql
client gets connected to a read-only replica after the failover.
Note that this should be a fairly rare case, as an automatic failover normally
happens when the primary is down, and the race condition shouldn't happen
unless it comes back up online as soon as the failover is kicked off. On the
other hand, when this happens, a MySQL application can get stuck on a
read-only connection until restarted. It is however fairly easy to reproduce,
for example, using a manual failover on AWS Aurora's MySQL-compatible cluster.
If you are not relying on read-only transactions to reject writes that aren't
supposed to happen, setting this on some MySQL providers (such as AWS Aurora)
is safer for failovers.
Note that ERROR 1290 can be returned for a `read-only` server and this option will
cause a retry for that error. However the same error number is used for some
other cases. You should ensure your application will never cause an ERROR 1290
except for `read-only` mode when enabling this option.
##### `serverPubKey`
```
Type: string
Valid Values: <name>
Default: none
```
Server public keys can be registered with [`mysql.RegisterServerPubKey`](https://godoc.org/github.com/go-sql-driver/mysql#RegisterServerPubKey), which can then be used by the assigned name in the DSN.
Public keys are used to transmit encrypted data, e.g. for authentication.
If the server's public key is known, it should be set manually to avoid expensive and potentially insecure transmissions of the public key from the server to the client each time it is required.
##### `timeout`
```
Type: duration
Default: OS default
```
Timeout for establishing connections, aka dial timeout. The value must be a decimal number with a unit suffix (*"ms"*, *"s"*, *"m"*, *"h"*), such as *"30s"*, *"0.5m"* or *"1m30s"*.
##### `tls`
```
Type: bool / string
Valid Values: true, false, skip-verify, preferred, <name>
Default: false
```
`tls=true` enables TLS / SSL encrypted connection to the server. Use `skip-verify` if you want to use a self-signed or invalid certificate (server side) or use `preferred` to use TLS only when advertised by the server. This is similar to `skip-verify`, but additionally allows a fallback to a connection which is not encrypted. Neither `skip-verify` nor `preferred` add any reliable security. You can use a custom TLS config after registering it with [`mysql.RegisterTLSConfig`](https://godoc.org/github.com/go-sql-driver/mysql#RegisterTLSConfig).
##### `writeTimeout`
```
Type: duration
Default: 0
```
I/O write timeout. The value must be a decimal number with a unit suffix (*"ms"*, *"s"*, *"m"*, *"h"*), such as *"30s"*, *"0.5m"* or *"1m30s"*.
##### `connectionAttributes`
```
Type: comma-delimited string of user-defined "key:value" pairs
Valid Values: (<name1>:<value1>,<name2>:<value2>,...)
Default: none
```
[Connection attributes](https://dev.mysql.com/doc/refman/8.0/en/performance-schema-connection-attribute-tables.html) are key-value pairs that application programs can pass to the server at connect time.
##### System Variables
Any other parameters are interpreted as system variables:
* `<boolean_var>=<value>`: `SET <boolean_var>=<value>`
* `<enum_var>=<value>`: `SET <enum_var>=<value>`
* `<string_var>=%27<value>%27`: `SET <string_var>='<value>'`
Rules:
* The values for string variables must be quoted with `'`.
* The values must also be [url.QueryEscape](http://golang.org/pkg/net/url/#QueryEscape)'ed!
(which implies values of string variables must be wrapped with `%27`).
Examples:
* `autocommit=1`: `SET autocommit=1`
* [`time_zone=%27Europe%2FParis%27`](https://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html): `SET time_zone='Europe/Paris'`
* [`transaction_isolation=%27REPEATABLE-READ%27`](https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_transaction_isolation): `SET transaction_isolation='REPEATABLE-READ'`
#### Examples
```
user@unix(/path/to/socket)/dbname
```
```
root:pw@unix(/tmp/mysql.sock)/myDatabase?loc=Local
```
```
user:password@tcp(localhost:5555)/dbname?tls=skip-verify&autocommit=true
```
Treat warnings as errors by setting the system variable [`sql_mode`](https://dev.mysql.com/doc/refman/5.7/en/sql-mode.html):
```
user:password@/dbname?sql_mode=TRADITIONAL
```
TCP via IPv6:
```
user:password@tcp([de:ad:be:ef::ca:fe]:80)/dbname?timeout=90s&collation=utf8mb4_unicode_ci
```
TCP on a remote host, e.g. Amazon RDS:
```
id:password@tcp(your-amazonaws-uri.com:3306)/dbname
```
Google Cloud SQL on App Engine:
```
user:password@unix(/cloudsql/project-id:region-name:instance-name)/dbname
```
TCP using default port (3306) on localhost:
```
user:password@tcp/dbname?charset=utf8mb4,utf8&sys_var=esc%40ped
```
Use the default protocol (tcp) and host (localhost:3306):
```
user:password@/dbname
```
No Database preselected:
```
user:password@/
```
### Connection pool and timeouts
The connection pool is managed by Go's database/sql package. For details on how to configure the size of the pool and how long connections stay in the pool see `*DB.SetMaxOpenConns`, `*DB.SetMaxIdleConns`, and `*DB.SetConnMaxLifetime` in the [database/sql documentation](https://golang.org/pkg/database/sql/). The read, write, and dial timeouts for each individual connection are configured with the DSN parameters [`readTimeout`](#readtimeout), [`writeTimeout`](#writetimeout), and [`timeout`](#timeout), respectively.
## `ColumnType` Support
This driver supports the [`ColumnType` interface](https://golang.org/pkg/database/sql/#ColumnType) introduced in Go 1.8, with the exception of [`ColumnType.Length()`](https://golang.org/pkg/database/sql/#ColumnType.Length), which is currently not supported. All Unsigned database type names will be returned `UNSIGNED ` with `INT`, `TINYINT`, `SMALLINT`, `MEDIUMINT`, `BIGINT`.
## `context.Context` Support
Go 1.8 added `database/sql` support for `context.Context`. This driver supports query timeouts and cancellation via contexts.
See [context support in the database/sql package](https://golang.org/doc/go1.8#database_sql) for more details.
### `LOAD DATA LOCAL INFILE` support
For this feature you need direct access to the package. Therefore you must change the import path (no `_`):
```go
import "github.com/go-sql-driver/mysql"
```
Files must be explicitly allowed by registering them with `mysql.RegisterLocalFile(filepath)` (recommended) or the allowlist check must be deactivated by using the DSN parameter `allowAllFiles=true` ([*Might be insecure!*](https://dev.mysql.com/doc/refman/8.0/en/load-data.html#load-data-local)).
To use a `io.Reader` a handler function must be registered with `mysql.RegisterReaderHandler(name, handler)` which returns a `io.Reader` or `io.ReadCloser`. The Reader is available with the filepath `Reader::<name>` then. Choose different names for different handlers and `DeregisterReaderHandler` when you don't need it anymore.
See the [godoc of Go-MySQL-Driver](https://godoc.org/github.com/go-sql-driver/mysql "golang mysql driver documentation") for details.
### `time.Time` support
The default internal output type of MySQL `DATE` and `DATETIME` values is `[]byte` which allows you to scan the value into a `[]byte`, `string` or `sql.RawBytes` variable in your program.
However, many want to scan MySQL `DATE` and `DATETIME` values into `time.Time` variables, which is the logical equivalent in Go to `DATE` and `DATETIME` in MySQL. You can do that by changing the internal output type from `[]byte` to `time.Time` with the DSN parameter `parseTime=true`. You can set the default [`time.Time` location](https://golang.org/pkg/time/#Location) with the `loc` DSN parameter.
**Caution:** As of Go 1.1, this makes `time.Time` the only variable type you can scan `DATE` and `DATETIME` values into. This breaks for example [`sql.RawBytes` support](https://github.com/go-sql-driver/mysql/wiki/Examples#rawbytes).
### Unicode support
Since version 1.5 Go-MySQL-Driver automatically uses the collation ` utf8mb4_general_ci` by default.
Other charsets / collations can be set using the [`charset`](#charset) or [`collation`](#collation) DSN parameter.
- When only the `charset` is specified, the `SET NAMES <charset>` query is sent and the server's default collation is used.
- When both the `charset` and `collation` are specified, the `SET NAMES <charset> COLLATE <collation>` query is sent.
- When only the `collation` is specified, the collation is specified in the protocol handshake and the `SET NAMES` query is not sent. This can save one roundtrip, but note that the server may ignore the specified collation silently and use the server's default charset/collation instead.
See http://dev.mysql.com/doc/refman/8.0/en/charset-unicode.html for more details on MySQL's Unicode support.
## Testing / Development
To run the driver tests you may need to adjust the configuration. See the [Testing Wiki-Page](https://github.com/go-sql-driver/mysql/wiki/Testing "Testing") for details.
Go-MySQL-Driver is not feature-complete yet. Your help is very appreciated.
If you want to contribute, you can work on an [open issue](https://github.com/go-sql-driver/mysql/issues?state=open) or review a [pull request](https://github.com/go-sql-driver/mysql/pulls).
See the [Contribution Guidelines](https://github.com/go-sql-driver/mysql/blob/master/.github/CONTRIBUTING.md) for details.
---------------------------------------
## License
Go-MySQL-Driver is licensed under the [Mozilla Public License Version 2.0](https://raw.github.com/go-sql-driver/mysql/master/LICENSE)
Mozilla summarizes the license scope as follows:
> MPL: The copyleft applies to any files containing MPLed code.
That means:
* You can **use** the **unchanged** source code both in private and commercially.
* When distributing, you **must publish** the source code of any **changed files** licensed under the MPL 2.0 under a) the MPL 2.0 itself or b) a compatible license (e.g. GPL 3.0 or Apache License 2.0).
* You **needn't publish** the source code of your library as long as the files licensed under the MPL 2.0 are **unchanged**.
Please read the [MPL 2.0 FAQ](https://www.mozilla.org/en-US/MPL/2.0/FAQ/) if you have further questions regarding the license.
You can read the full terms here: [LICENSE](https://raw.github.com/go-sql-driver/mysql/master/LICENSE).
![Go Gopher and MySQL Dolphin](https://raw.github.com/wiki/go-sql-driver/mysql/go-mysql-driver_m.jpg "Golang Gopher transporting the MySQL Dolphin in a wheelbarrow")

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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package.
//
// Copyright 2022 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
//go:build go1.19
// +build go1.19
package mysql
import "sync/atomic"
/******************************************************************************
* Sync utils *
******************************************************************************/
type atomicBool = atomic.Bool

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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package.
//
// Copyright 2022 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
//go:build !go1.19
// +build !go1.19
package mysql
import "sync/atomic"
/******************************************************************************
* Sync utils *
******************************************************************************/
// atomicBool is an implementation of atomic.Bool for older version of Go.
// it is a wrapper around uint32 for usage as a boolean value with
// atomic access.
type atomicBool struct {
_ noCopy
value uint32
}
// Load returns whether the current boolean value is true
func (ab *atomicBool) Load() bool {
return atomic.LoadUint32(&ab.value) > 0
}
// Store sets the value of the bool regardless of the previous value
func (ab *atomicBool) Store(value bool) {
if value {
atomic.StoreUint32(&ab.value, 1)
} else {
atomic.StoreUint32(&ab.value, 0)
}
}
// Swap sets the value of the bool and returns the old value.
func (ab *atomicBool) Swap(value bool) bool {
if value {
return atomic.SwapUint32(&ab.value, 1) > 0
}
return atomic.SwapUint32(&ab.value, 0) > 0
}

484
vendor/github.com/go-sql-driver/mysql/auth.go generated vendored
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@ -1,484 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2018 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"crypto/rand"
"crypto/rsa"
"crypto/sha1"
"crypto/sha256"
"crypto/sha512"
"crypto/x509"
"encoding/pem"
"fmt"
"sync"
"filippo.io/edwards25519"
)
// server pub keys registry
var (
serverPubKeyLock sync.RWMutex
serverPubKeyRegistry map[string]*rsa.PublicKey
)
// RegisterServerPubKey registers a server RSA public key which can be used to
// send data in a secure manner to the server without receiving the public key
// in a potentially insecure way from the server first.
// Registered keys can afterwards be used adding serverPubKey=<name> to the DSN.
//
// Note: The provided rsa.PublicKey instance is exclusively owned by the driver
// after registering it and may not be modified.
//
// data, err := os.ReadFile("mykey.pem")
// if err != nil {
// log.Fatal(err)
// }
//
// block, _ := pem.Decode(data)
// if block == nil || block.Type != "PUBLIC KEY" {
// log.Fatal("failed to decode PEM block containing public key")
// }
//
// pub, err := x509.ParsePKIXPublicKey(block.Bytes)
// if err != nil {
// log.Fatal(err)
// }
//
// if rsaPubKey, ok := pub.(*rsa.PublicKey); ok {
// mysql.RegisterServerPubKey("mykey", rsaPubKey)
// } else {
// log.Fatal("not a RSA public key")
// }
func RegisterServerPubKey(name string, pubKey *rsa.PublicKey) {
serverPubKeyLock.Lock()
if serverPubKeyRegistry == nil {
serverPubKeyRegistry = make(map[string]*rsa.PublicKey)
}
serverPubKeyRegistry[name] = pubKey
serverPubKeyLock.Unlock()
}
// DeregisterServerPubKey removes the public key registered with the given name.
func DeregisterServerPubKey(name string) {
serverPubKeyLock.Lock()
if serverPubKeyRegistry != nil {
delete(serverPubKeyRegistry, name)
}
serverPubKeyLock.Unlock()
}
func getServerPubKey(name string) (pubKey *rsa.PublicKey) {
serverPubKeyLock.RLock()
if v, ok := serverPubKeyRegistry[name]; ok {
pubKey = v
}
serverPubKeyLock.RUnlock()
return
}
// Hash password using pre 4.1 (old password) method
// https://github.com/atcurtis/mariadb/blob/master/mysys/my_rnd.c
type myRnd struct {
seed1, seed2 uint32
}
const myRndMaxVal = 0x3FFFFFFF
// Pseudo random number generator
func newMyRnd(seed1, seed2 uint32) *myRnd {
return &myRnd{
seed1: seed1 % myRndMaxVal,
seed2: seed2 % myRndMaxVal,
}
}
// Tested to be equivalent to MariaDB's floating point variant
// http://play.golang.org/p/QHvhd4qved
// http://play.golang.org/p/RG0q4ElWDx
func (r *myRnd) NextByte() byte {
r.seed1 = (r.seed1*3 + r.seed2) % myRndMaxVal
r.seed2 = (r.seed1 + r.seed2 + 33) % myRndMaxVal
return byte(uint64(r.seed1) * 31 / myRndMaxVal)
}
// Generate binary hash from byte string using insecure pre 4.1 method
func pwHash(password []byte) (result [2]uint32) {
var add uint32 = 7
var tmp uint32
result[0] = 1345345333
result[1] = 0x12345671
for _, c := range password {
// skip spaces and tabs in password
if c == ' ' || c == '\t' {
continue
}
tmp = uint32(c)
result[0] ^= (((result[0] & 63) + add) * tmp) + (result[0] << 8)
result[1] += (result[1] << 8) ^ result[0]
add += tmp
}
// Remove sign bit (1<<31)-1)
result[0] &= 0x7FFFFFFF
result[1] &= 0x7FFFFFFF
return
}
// Hash password using insecure pre 4.1 method
func scrambleOldPassword(scramble []byte, password string) []byte {
scramble = scramble[:8]
hashPw := pwHash([]byte(password))
hashSc := pwHash(scramble)
r := newMyRnd(hashPw[0]^hashSc[0], hashPw[1]^hashSc[1])
var out [8]byte
for i := range out {
out[i] = r.NextByte() + 64
}
mask := r.NextByte()
for i := range out {
out[i] ^= mask
}
return out[:]
}
// Hash password using 4.1+ method (SHA1)
func scramblePassword(scramble []byte, password string) []byte {
if len(password) == 0 {
return nil
}
// stage1Hash = SHA1(password)
crypt := sha1.New()
crypt.Write([]byte(password))
stage1 := crypt.Sum(nil)
// scrambleHash = SHA1(scramble + SHA1(stage1Hash))
// inner Hash
crypt.Reset()
crypt.Write(stage1)
hash := crypt.Sum(nil)
// outer Hash
crypt.Reset()
crypt.Write(scramble)
crypt.Write(hash)
scramble = crypt.Sum(nil)
// token = scrambleHash XOR stage1Hash
for i := range scramble {
scramble[i] ^= stage1[i]
}
return scramble
}
// Hash password using MySQL 8+ method (SHA256)
func scrambleSHA256Password(scramble []byte, password string) []byte {
if len(password) == 0 {
return nil
}
// XOR(SHA256(password), SHA256(SHA256(SHA256(password)), scramble))
crypt := sha256.New()
crypt.Write([]byte(password))
message1 := crypt.Sum(nil)
crypt.Reset()
crypt.Write(message1)
message1Hash := crypt.Sum(nil)
crypt.Reset()
crypt.Write(message1Hash)
crypt.Write(scramble)
message2 := crypt.Sum(nil)
for i := range message1 {
message1[i] ^= message2[i]
}
return message1
}
func encryptPassword(password string, seed []byte, pub *rsa.PublicKey) ([]byte, error) {
plain := make([]byte, len(password)+1)
copy(plain, password)
for i := range plain {
j := i % len(seed)
plain[i] ^= seed[j]
}
sha1 := sha1.New()
return rsa.EncryptOAEP(sha1, rand.Reader, pub, plain, nil)
}
// authEd25519 does ed25519 authentication used by MariaDB.
func authEd25519(scramble []byte, password string) ([]byte, error) {
// Derived from https://github.com/MariaDB/server/blob/d8e6bb00888b1f82c031938f4c8ac5d97f6874c3/plugin/auth_ed25519/ref10/sign.c
// Code style is from https://cs.opensource.google/go/go/+/refs/tags/go1.21.5:src/crypto/ed25519/ed25519.go;l=207
h := sha512.Sum512([]byte(password))
s, err := edwards25519.NewScalar().SetBytesWithClamping(h[:32])
if err != nil {
return nil, err
}
A := (&edwards25519.Point{}).ScalarBaseMult(s)
mh := sha512.New()
mh.Write(h[32:])
mh.Write(scramble)
messageDigest := mh.Sum(nil)
r, err := edwards25519.NewScalar().SetUniformBytes(messageDigest)
if err != nil {
return nil, err
}
R := (&edwards25519.Point{}).ScalarBaseMult(r)
kh := sha512.New()
kh.Write(R.Bytes())
kh.Write(A.Bytes())
kh.Write(scramble)
hramDigest := kh.Sum(nil)
k, err := edwards25519.NewScalar().SetUniformBytes(hramDigest)
if err != nil {
return nil, err
}
S := k.MultiplyAdd(k, s, r)
return append(R.Bytes(), S.Bytes()...), nil
}
func (mc *mysqlConn) sendEncryptedPassword(seed []byte, pub *rsa.PublicKey) error {
enc, err := encryptPassword(mc.cfg.Passwd, seed, pub)
if err != nil {
return err
}
return mc.writeAuthSwitchPacket(enc)
}
func (mc *mysqlConn) auth(authData []byte, plugin string) ([]byte, error) {
switch plugin {
case "caching_sha2_password":
authResp := scrambleSHA256Password(authData, mc.cfg.Passwd)
return authResp, nil
case "mysql_old_password":
if !mc.cfg.AllowOldPasswords {
return nil, ErrOldPassword
}
if len(mc.cfg.Passwd) == 0 {
return nil, nil
}
// Note: there are edge cases where this should work but doesn't;
// this is currently "wontfix":
// https://github.com/go-sql-driver/mysql/issues/184
authResp := append(scrambleOldPassword(authData[:8], mc.cfg.Passwd), 0)
return authResp, nil
case "mysql_clear_password":
if !mc.cfg.AllowCleartextPasswords {
return nil, ErrCleartextPassword
}
// http://dev.mysql.com/doc/refman/5.7/en/cleartext-authentication-plugin.html
// http://dev.mysql.com/doc/refman/5.7/en/pam-authentication-plugin.html
return append([]byte(mc.cfg.Passwd), 0), nil
case "mysql_native_password":
if !mc.cfg.AllowNativePasswords {
return nil, ErrNativePassword
}
// https://dev.mysql.com/doc/internals/en/secure-password-authentication.html
// Native password authentication only need and will need 20-byte challenge.
authResp := scramblePassword(authData[:20], mc.cfg.Passwd)
return authResp, nil
case "sha256_password":
if len(mc.cfg.Passwd) == 0 {
return []byte{0}, nil
}
// unlike caching_sha2_password, sha256_password does not accept
// cleartext password on unix transport.
if mc.cfg.TLS != nil {
// write cleartext auth packet
return append([]byte(mc.cfg.Passwd), 0), nil
}
pubKey := mc.cfg.pubKey
if pubKey == nil {
// request public key from server
return []byte{1}, nil
}
// encrypted password
enc, err := encryptPassword(mc.cfg.Passwd, authData, pubKey)
return enc, err
case "client_ed25519":
if len(authData) != 32 {
return nil, ErrMalformPkt
}
return authEd25519(authData, mc.cfg.Passwd)
default:
mc.log("unknown auth plugin:", plugin)
return nil, ErrUnknownPlugin
}
}
func (mc *mysqlConn) handleAuthResult(oldAuthData []byte, plugin string) error {
// Read Result Packet
authData, newPlugin, err := mc.readAuthResult()
if err != nil {
return err
}
// handle auth plugin switch, if requested
if newPlugin != "" {
// If CLIENT_PLUGIN_AUTH capability is not supported, no new cipher is
// sent and we have to keep using the cipher sent in the init packet.
if authData == nil {
authData = oldAuthData
} else {
// copy data from read buffer to owned slice
copy(oldAuthData, authData)
}
plugin = newPlugin
authResp, err := mc.auth(authData, plugin)
if err != nil {
return err
}
if err = mc.writeAuthSwitchPacket(authResp); err != nil {
return err
}
// Read Result Packet
authData, newPlugin, err = mc.readAuthResult()
if err != nil {
return err
}
// Do not allow to change the auth plugin more than once
if newPlugin != "" {
return ErrMalformPkt
}
}
switch plugin {
// https://dev.mysql.com/blog-archive/preparing-your-community-connector-for-mysql-8-part-2-sha256/
case "caching_sha2_password":
switch len(authData) {
case 0:
return nil // auth successful
case 1:
switch authData[0] {
case cachingSha2PasswordFastAuthSuccess:
if err = mc.resultUnchanged().readResultOK(); err == nil {
return nil // auth successful
}
case cachingSha2PasswordPerformFullAuthentication:
if mc.cfg.TLS != nil || mc.cfg.Net == "unix" {
// write cleartext auth packet
err = mc.writeAuthSwitchPacket(append([]byte(mc.cfg.Passwd), 0))
if err != nil {
return err
}
} else {
pubKey := mc.cfg.pubKey
if pubKey == nil {
// request public key from server
data, err := mc.buf.takeSmallBuffer(4 + 1)
if err != nil {
return err
}
data[4] = cachingSha2PasswordRequestPublicKey
err = mc.writePacket(data)
if err != nil {
return err
}
if data, err = mc.readPacket(); err != nil {
return err
}
if data[0] != iAuthMoreData {
return fmt.Errorf("unexpected resp from server for caching_sha2_password, perform full authentication")
}
// parse public key
block, rest := pem.Decode(data[1:])
if block == nil {
return fmt.Errorf("no pem data found, data: %s", rest)
}
pkix, err := x509.ParsePKIXPublicKey(block.Bytes)
if err != nil {
return err
}
pubKey = pkix.(*rsa.PublicKey)
}
// send encrypted password
err = mc.sendEncryptedPassword(oldAuthData, pubKey)
if err != nil {
return err
}
}
return mc.resultUnchanged().readResultOK()
default:
return ErrMalformPkt
}
default:
return ErrMalformPkt
}
case "sha256_password":
switch len(authData) {
case 0:
return nil // auth successful
default:
block, _ := pem.Decode(authData)
if block == nil {
return fmt.Errorf("no Pem data found, data: %s", authData)
}
pub, err := x509.ParsePKIXPublicKey(block.Bytes)
if err != nil {
return err
}
// send encrypted password
err = mc.sendEncryptedPassword(oldAuthData, pub.(*rsa.PublicKey))
if err != nil {
return err
}
return mc.resultUnchanged().readResultOK()
}
default:
return nil // auth successful
}
return err
}

182
vendor/github.com/go-sql-driver/mysql/buffer.go generated vendored
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@ -1,182 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"io"
"net"
"time"
)
const defaultBufSize = 4096
const maxCachedBufSize = 256 * 1024
// A buffer which is used for both reading and writing.
// This is possible since communication on each connection is synchronous.
// In other words, we can't write and read simultaneously on the same connection.
// The buffer is similar to bufio.Reader / Writer but zero-copy-ish
// Also highly optimized for this particular use case.
// This buffer is backed by two byte slices in a double-buffering scheme
type buffer struct {
buf []byte // buf is a byte buffer who's length and capacity are equal.
nc net.Conn
idx int
length int
timeout time.Duration
dbuf [2][]byte // dbuf is an array with the two byte slices that back this buffer
flipcnt uint // flipccnt is the current buffer counter for double-buffering
}
// newBuffer allocates and returns a new buffer.
func newBuffer(nc net.Conn) buffer {
fg := make([]byte, defaultBufSize)
return buffer{
buf: fg,
nc: nc,
dbuf: [2][]byte{fg, nil},
}
}
// flip replaces the active buffer with the background buffer
// this is a delayed flip that simply increases the buffer counter;
// the actual flip will be performed the next time we call `buffer.fill`
func (b *buffer) flip() {
b.flipcnt += 1
}
// fill reads into the buffer until at least _need_ bytes are in it
func (b *buffer) fill(need int) error {
n := b.length
// fill data into its double-buffering target: if we've called
// flip on this buffer, we'll be copying to the background buffer,
// and then filling it with network data; otherwise we'll just move
// the contents of the current buffer to the front before filling it
dest := b.dbuf[b.flipcnt&1]
// grow buffer if necessary to fit the whole packet.
if need > len(dest) {
// Round up to the next multiple of the default size
dest = make([]byte, ((need/defaultBufSize)+1)*defaultBufSize)
// if the allocated buffer is not too large, move it to backing storage
// to prevent extra allocations on applications that perform large reads
if len(dest) <= maxCachedBufSize {
b.dbuf[b.flipcnt&1] = dest
}
}
// if we're filling the fg buffer, move the existing data to the start of it.
// if we're filling the bg buffer, copy over the data
if n > 0 {
copy(dest[:n], b.buf[b.idx:])
}
b.buf = dest
b.idx = 0
for {
if b.timeout > 0 {
if err := b.nc.SetReadDeadline(time.Now().Add(b.timeout)); err != nil {
return err
}
}
nn, err := b.nc.Read(b.buf[n:])
n += nn
switch err {
case nil:
if n < need {
continue
}
b.length = n
return nil
case io.EOF:
if n >= need {
b.length = n
return nil
}
return io.ErrUnexpectedEOF
default:
return err
}
}
}
// returns next N bytes from buffer.
// The returned slice is only guaranteed to be valid until the next read
func (b *buffer) readNext(need int) ([]byte, error) {
if b.length < need {
// refill
if err := b.fill(need); err != nil {
return nil, err
}
}
offset := b.idx
b.idx += need
b.length -= need
return b.buf[offset:b.idx], nil
}
// takeBuffer returns a buffer with the requested size.
// If possible, a slice from the existing buffer is returned.
// Otherwise a bigger buffer is made.
// Only one buffer (total) can be used at a time.
func (b *buffer) takeBuffer(length int) ([]byte, error) {
if b.length > 0 {
return nil, ErrBusyBuffer
}
// test (cheap) general case first
if length <= cap(b.buf) {
return b.buf[:length], nil
}
if length < maxPacketSize {
b.buf = make([]byte, length)
return b.buf, nil
}
// buffer is larger than we want to store.
return make([]byte, length), nil
}
// takeSmallBuffer is shortcut which can be used if length is
// known to be smaller than defaultBufSize.
// Only one buffer (total) can be used at a time.
func (b *buffer) takeSmallBuffer(length int) ([]byte, error) {
if b.length > 0 {
return nil, ErrBusyBuffer
}
return b.buf[:length], nil
}
// takeCompleteBuffer returns the complete existing buffer.
// This can be used if the necessary buffer size is unknown.
// cap and len of the returned buffer will be equal.
// Only one buffer (total) can be used at a time.
func (b *buffer) takeCompleteBuffer() ([]byte, error) {
if b.length > 0 {
return nil, ErrBusyBuffer
}
return b.buf, nil
}
// store stores buf, an updated buffer, if its suitable to do so.
func (b *buffer) store(buf []byte) error {
if b.length > 0 {
return ErrBusyBuffer
} else if cap(buf) <= maxPacketSize && cap(buf) > cap(b.buf) {
b.buf = buf[:cap(buf)]
}
return nil
}

266
vendor/github.com/go-sql-driver/mysql/collations.go generated vendored
View File

@ -1,266 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2014 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
const defaultCollation = "utf8mb4_general_ci"
const binaryCollationID = 63
// A list of available collations mapped to the internal ID.
// To update this map use the following MySQL query:
//
// SELECT COLLATION_NAME, ID FROM information_schema.COLLATIONS WHERE ID<256 ORDER BY ID
//
// Handshake packet have only 1 byte for collation_id. So we can't use collations with ID > 255.
//
// ucs2, utf16, and utf32 can't be used for connection charset.
// https://dev.mysql.com/doc/refman/5.7/en/charset-connection.html#charset-connection-impermissible-client-charset
// They are commented out to reduce this map.
var collations = map[string]byte{
"big5_chinese_ci": 1,
"latin2_czech_cs": 2,
"dec8_swedish_ci": 3,
"cp850_general_ci": 4,
"latin1_german1_ci": 5,
"hp8_english_ci": 6,
"koi8r_general_ci": 7,
"latin1_swedish_ci": 8,
"latin2_general_ci": 9,
"swe7_swedish_ci": 10,
"ascii_general_ci": 11,
"ujis_japanese_ci": 12,
"sjis_japanese_ci": 13,
"cp1251_bulgarian_ci": 14,
"latin1_danish_ci": 15,
"hebrew_general_ci": 16,
"tis620_thai_ci": 18,
"euckr_korean_ci": 19,
"latin7_estonian_cs": 20,
"latin2_hungarian_ci": 21,
"koi8u_general_ci": 22,
"cp1251_ukrainian_ci": 23,
"gb2312_chinese_ci": 24,
"greek_general_ci": 25,
"cp1250_general_ci": 26,
"latin2_croatian_ci": 27,
"gbk_chinese_ci": 28,
"cp1257_lithuanian_ci": 29,
"latin5_turkish_ci": 30,
"latin1_german2_ci": 31,
"armscii8_general_ci": 32,
"utf8_general_ci": 33,
"cp1250_czech_cs": 34,
//"ucs2_general_ci": 35,
"cp866_general_ci": 36,
"keybcs2_general_ci": 37,
"macce_general_ci": 38,
"macroman_general_ci": 39,
"cp852_general_ci": 40,
"latin7_general_ci": 41,
"latin7_general_cs": 42,
"macce_bin": 43,
"cp1250_croatian_ci": 44,
"utf8mb4_general_ci": 45,
"utf8mb4_bin": 46,
"latin1_bin": 47,
"latin1_general_ci": 48,
"latin1_general_cs": 49,
"cp1251_bin": 50,
"cp1251_general_ci": 51,
"cp1251_general_cs": 52,
"macroman_bin": 53,
//"utf16_general_ci": 54,
//"utf16_bin": 55,
//"utf16le_general_ci": 56,
"cp1256_general_ci": 57,
"cp1257_bin": 58,
"cp1257_general_ci": 59,
//"utf32_general_ci": 60,
//"utf32_bin": 61,
//"utf16le_bin": 62,
"binary": 63,
"armscii8_bin": 64,
"ascii_bin": 65,
"cp1250_bin": 66,
"cp1256_bin": 67,
"cp866_bin": 68,
"dec8_bin": 69,
"greek_bin": 70,
"hebrew_bin": 71,
"hp8_bin": 72,
"keybcs2_bin": 73,
"koi8r_bin": 74,
"koi8u_bin": 75,
"utf8_tolower_ci": 76,
"latin2_bin": 77,
"latin5_bin": 78,
"latin7_bin": 79,
"cp850_bin": 80,
"cp852_bin": 81,
"swe7_bin": 82,
"utf8_bin": 83,
"big5_bin": 84,
"euckr_bin": 85,
"gb2312_bin": 86,
"gbk_bin": 87,
"sjis_bin": 88,
"tis620_bin": 89,
//"ucs2_bin": 90,
"ujis_bin": 91,
"geostd8_general_ci": 92,
"geostd8_bin": 93,
"latin1_spanish_ci": 94,
"cp932_japanese_ci": 95,
"cp932_bin": 96,
"eucjpms_japanese_ci": 97,
"eucjpms_bin": 98,
"cp1250_polish_ci": 99,
//"utf16_unicode_ci": 101,
//"utf16_icelandic_ci": 102,
//"utf16_latvian_ci": 103,
//"utf16_romanian_ci": 104,
//"utf16_slovenian_ci": 105,
//"utf16_polish_ci": 106,
//"utf16_estonian_ci": 107,
//"utf16_spanish_ci": 108,
//"utf16_swedish_ci": 109,
//"utf16_turkish_ci": 110,
//"utf16_czech_ci": 111,
//"utf16_danish_ci": 112,
//"utf16_lithuanian_ci": 113,
//"utf16_slovak_ci": 114,
//"utf16_spanish2_ci": 115,
//"utf16_roman_ci": 116,
//"utf16_persian_ci": 117,
//"utf16_esperanto_ci": 118,
//"utf16_hungarian_ci": 119,
//"utf16_sinhala_ci": 120,
//"utf16_german2_ci": 121,
//"utf16_croatian_ci": 122,
//"utf16_unicode_520_ci": 123,
//"utf16_vietnamese_ci": 124,
//"ucs2_unicode_ci": 128,
//"ucs2_icelandic_ci": 129,
//"ucs2_latvian_ci": 130,
//"ucs2_romanian_ci": 131,
//"ucs2_slovenian_ci": 132,
//"ucs2_polish_ci": 133,
//"ucs2_estonian_ci": 134,
//"ucs2_spanish_ci": 135,
//"ucs2_swedish_ci": 136,
//"ucs2_turkish_ci": 137,
//"ucs2_czech_ci": 138,
//"ucs2_danish_ci": 139,
//"ucs2_lithuanian_ci": 140,
//"ucs2_slovak_ci": 141,
//"ucs2_spanish2_ci": 142,
//"ucs2_roman_ci": 143,
//"ucs2_persian_ci": 144,
//"ucs2_esperanto_ci": 145,
//"ucs2_hungarian_ci": 146,
//"ucs2_sinhala_ci": 147,
//"ucs2_german2_ci": 148,
//"ucs2_croatian_ci": 149,
//"ucs2_unicode_520_ci": 150,
//"ucs2_vietnamese_ci": 151,
//"ucs2_general_mysql500_ci": 159,
//"utf32_unicode_ci": 160,
//"utf32_icelandic_ci": 161,
//"utf32_latvian_ci": 162,
//"utf32_romanian_ci": 163,
//"utf32_slovenian_ci": 164,
//"utf32_polish_ci": 165,
//"utf32_estonian_ci": 166,
//"utf32_spanish_ci": 167,
//"utf32_swedish_ci": 168,
//"utf32_turkish_ci": 169,
//"utf32_czech_ci": 170,
//"utf32_danish_ci": 171,
//"utf32_lithuanian_ci": 172,
//"utf32_slovak_ci": 173,
//"utf32_spanish2_ci": 174,
//"utf32_roman_ci": 175,
//"utf32_persian_ci": 176,
//"utf32_esperanto_ci": 177,
//"utf32_hungarian_ci": 178,
//"utf32_sinhala_ci": 179,
//"utf32_german2_ci": 180,
//"utf32_croatian_ci": 181,
//"utf32_unicode_520_ci": 182,
//"utf32_vietnamese_ci": 183,
"utf8_unicode_ci": 192,
"utf8_icelandic_ci": 193,
"utf8_latvian_ci": 194,
"utf8_romanian_ci": 195,
"utf8_slovenian_ci": 196,
"utf8_polish_ci": 197,
"utf8_estonian_ci": 198,
"utf8_spanish_ci": 199,
"utf8_swedish_ci": 200,
"utf8_turkish_ci": 201,
"utf8_czech_ci": 202,
"utf8_danish_ci": 203,
"utf8_lithuanian_ci": 204,
"utf8_slovak_ci": 205,
"utf8_spanish2_ci": 206,
"utf8_roman_ci": 207,
"utf8_persian_ci": 208,
"utf8_esperanto_ci": 209,
"utf8_hungarian_ci": 210,
"utf8_sinhala_ci": 211,
"utf8_german2_ci": 212,
"utf8_croatian_ci": 213,
"utf8_unicode_520_ci": 214,
"utf8_vietnamese_ci": 215,
"utf8_general_mysql500_ci": 223,
"utf8mb4_unicode_ci": 224,
"utf8mb4_icelandic_ci": 225,
"utf8mb4_latvian_ci": 226,
"utf8mb4_romanian_ci": 227,
"utf8mb4_slovenian_ci": 228,
"utf8mb4_polish_ci": 229,
"utf8mb4_estonian_ci": 230,
"utf8mb4_spanish_ci": 231,
"utf8mb4_swedish_ci": 232,
"utf8mb4_turkish_ci": 233,
"utf8mb4_czech_ci": 234,
"utf8mb4_danish_ci": 235,
"utf8mb4_lithuanian_ci": 236,
"utf8mb4_slovak_ci": 237,
"utf8mb4_spanish2_ci": 238,
"utf8mb4_roman_ci": 239,
"utf8mb4_persian_ci": 240,
"utf8mb4_esperanto_ci": 241,
"utf8mb4_hungarian_ci": 242,
"utf8mb4_sinhala_ci": 243,
"utf8mb4_german2_ci": 244,
"utf8mb4_croatian_ci": 245,
"utf8mb4_unicode_520_ci": 246,
"utf8mb4_vietnamese_ci": 247,
"gb18030_chinese_ci": 248,
"gb18030_bin": 249,
"gb18030_unicode_520_ci": 250,
"utf8mb4_0900_ai_ci": 255,
}
// A denylist of collations which is unsafe to interpolate parameters.
// These multibyte encodings may contains 0x5c (`\`) in their trailing bytes.
var unsafeCollations = map[string]bool{
"big5_chinese_ci": true,
"sjis_japanese_ci": true,
"gbk_chinese_ci": true,
"big5_bin": true,
"gb2312_bin": true,
"gbk_bin": true,
"sjis_bin": true,
"cp932_japanese_ci": true,
"cp932_bin": true,
"gb18030_chinese_ci": true,
"gb18030_bin": true,
"gb18030_unicode_520_ci": true,
}

55
vendor/github.com/go-sql-driver/mysql/conncheck.go generated vendored
View File

@ -1,55 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2019 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
//go:build linux || darwin || dragonfly || freebsd || netbsd || openbsd || solaris || illumos
// +build linux darwin dragonfly freebsd netbsd openbsd solaris illumos
package mysql
import (
"errors"
"io"
"net"
"syscall"
)
var errUnexpectedRead = errors.New("unexpected read from socket")
func connCheck(conn net.Conn) error {
var sysErr error
sysConn, ok := conn.(syscall.Conn)
if !ok {
return nil
}
rawConn, err := sysConn.SyscallConn()
if err != nil {
return err
}
err = rawConn.Read(func(fd uintptr) bool {
var buf [1]byte
n, err := syscall.Read(int(fd), buf[:])
switch {
case n == 0 && err == nil:
sysErr = io.EOF
case n > 0:
sysErr = errUnexpectedRead
case err == syscall.EAGAIN || err == syscall.EWOULDBLOCK:
sysErr = nil
default:
sysErr = err
}
return true
})
if err != nil {
return err
}
return sysErr
}

18
vendor/github.com/go-sql-driver/mysql/conncheck_dummy.go generated vendored
View File

@ -1,18 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2019 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
//go:build !linux && !darwin && !dragonfly && !freebsd && !netbsd && !openbsd && !solaris && !illumos
// +build !linux,!darwin,!dragonfly,!freebsd,!netbsd,!openbsd,!solaris,!illumos
package mysql
import "net"
func connCheck(conn net.Conn) error {
return nil
}

688
vendor/github.com/go-sql-driver/mysql/connection.go generated vendored
View File

@ -1,688 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"context"
"database/sql"
"database/sql/driver"
"encoding/json"
"io"
"net"
"strconv"
"strings"
"time"
)
type mysqlConn struct {
buf buffer
netConn net.Conn
rawConn net.Conn // underlying connection when netConn is TLS connection.
result mysqlResult // managed by clearResult() and handleOkPacket().
cfg *Config
connector *connector
maxAllowedPacket int
maxWriteSize int
writeTimeout time.Duration
flags clientFlag
status statusFlag
sequence uint8
parseTime bool
// for context support (Go 1.8+)
watching bool
watcher chan<- context.Context
closech chan struct{}
finished chan<- struct{}
canceled atomicError // set non-nil if conn is canceled
closed atomicBool // set when conn is closed, before closech is closed
}
// Helper function to call per-connection logger.
func (mc *mysqlConn) log(v ...any) {
mc.cfg.Logger.Print(v...)
}
// Handles parameters set in DSN after the connection is established
func (mc *mysqlConn) handleParams() (err error) {
var cmdSet strings.Builder
for param, val := range mc.cfg.Params {
switch param {
// Charset: character_set_connection, character_set_client, character_set_results
case "charset":
charsets := strings.Split(val, ",")
for _, cs := range charsets {
// ignore errors here - a charset may not exist
if mc.cfg.Collation != "" {
err = mc.exec("SET NAMES " + cs + " COLLATE " + mc.cfg.Collation)
} else {
err = mc.exec("SET NAMES " + cs)
}
if err == nil {
break
}
}
if err != nil {
return
}
// Other system vars accumulated in a single SET command
default:
if cmdSet.Len() == 0 {
// Heuristic: 29 chars for each other key=value to reduce reallocations
cmdSet.Grow(4 + len(param) + 3 + len(val) + 30*(len(mc.cfg.Params)-1))
cmdSet.WriteString("SET ")
} else {
cmdSet.WriteString(", ")
}
cmdSet.WriteString(param)
cmdSet.WriteString(" = ")
cmdSet.WriteString(val)
}
}
if cmdSet.Len() > 0 {
err = mc.exec(cmdSet.String())
if err != nil {
return
}
}
return
}
func (mc *mysqlConn) markBadConn(err error) error {
if mc == nil {
return err
}
if err != errBadConnNoWrite {
return err
}
return driver.ErrBadConn
}
func (mc *mysqlConn) Begin() (driver.Tx, error) {
return mc.begin(false)
}
func (mc *mysqlConn) begin(readOnly bool) (driver.Tx, error) {
if mc.closed.Load() {
mc.log(ErrInvalidConn)
return nil, driver.ErrBadConn
}
var q string
if readOnly {
q = "START TRANSACTION READ ONLY"
} else {
q = "START TRANSACTION"
}
err := mc.exec(q)
if err == nil {
return &mysqlTx{mc}, err
}
return nil, mc.markBadConn(err)
}
func (mc *mysqlConn) Close() (err error) {
// Makes Close idempotent
if !mc.closed.Load() {
err = mc.writeCommandPacket(comQuit)
}
mc.cleanup()
mc.clearResult()
return
}
// Closes the network connection and unsets internal variables. Do not call this
// function after successfully authentication, call Close instead. This function
// is called before auth or on auth failure because MySQL will have already
// closed the network connection.
func (mc *mysqlConn) cleanup() {
if mc.closed.Swap(true) {
return
}
// Makes cleanup idempotent
close(mc.closech)
conn := mc.rawConn
if conn == nil {
return
}
if err := conn.Close(); err != nil {
mc.log(err)
}
// This function can be called from multiple goroutines.
// So we can not mc.clearResult() here.
// Caller should do it if they are in safe goroutine.
}
func (mc *mysqlConn) error() error {
if mc.closed.Load() {
if err := mc.canceled.Value(); err != nil {
return err
}
return ErrInvalidConn
}
return nil
}
func (mc *mysqlConn) Prepare(query string) (driver.Stmt, error) {
if mc.closed.Load() {
mc.log(ErrInvalidConn)
return nil, driver.ErrBadConn
}
// Send command
err := mc.writeCommandPacketStr(comStmtPrepare, query)
if err != nil {
// STMT_PREPARE is safe to retry. So we can return ErrBadConn here.
mc.log(err)
return nil, driver.ErrBadConn
}
stmt := &mysqlStmt{
mc: mc,
}
// Read Result
columnCount, err := stmt.readPrepareResultPacket()
if err == nil {
if stmt.paramCount > 0 {
if err = mc.readUntilEOF(); err != nil {
return nil, err
}
}
if columnCount > 0 {
err = mc.readUntilEOF()
}
}
return stmt, err
}
func (mc *mysqlConn) interpolateParams(query string, args []driver.Value) (string, error) {
// Number of ? should be same to len(args)
if strings.Count(query, "?") != len(args) {
return "", driver.ErrSkip
}
buf, err := mc.buf.takeCompleteBuffer()
if err != nil {
// can not take the buffer. Something must be wrong with the connection
mc.log(err)
return "", ErrInvalidConn
}
buf = buf[:0]
argPos := 0
for i := 0; i < len(query); i++ {
q := strings.IndexByte(query[i:], '?')
if q == -1 {
buf = append(buf, query[i:]...)
break
}
buf = append(buf, query[i:i+q]...)
i += q
arg := args[argPos]
argPos++
if arg == nil {
buf = append(buf, "NULL"...)
continue
}
switch v := arg.(type) {
case int64:
buf = strconv.AppendInt(buf, v, 10)
case uint64:
// Handle uint64 explicitly because our custom ConvertValue emits unsigned values
buf = strconv.AppendUint(buf, v, 10)
case float64:
buf = strconv.AppendFloat(buf, v, 'g', -1, 64)
case bool:
if v {
buf = append(buf, '1')
} else {
buf = append(buf, '0')
}
case time.Time:
if v.IsZero() {
buf = append(buf, "'0000-00-00'"...)
} else {
buf = append(buf, '\'')
buf, err = appendDateTime(buf, v.In(mc.cfg.Loc), mc.cfg.timeTruncate)
if err != nil {
return "", err
}
buf = append(buf, '\'')
}
case json.RawMessage:
buf = append(buf, '\'')
if mc.status&statusNoBackslashEscapes == 0 {
buf = escapeBytesBackslash(buf, v)
} else {
buf = escapeBytesQuotes(buf, v)
}
buf = append(buf, '\'')
case []byte:
if v == nil {
buf = append(buf, "NULL"...)
} else {
buf = append(buf, "_binary'"...)
if mc.status&statusNoBackslashEscapes == 0 {
buf = escapeBytesBackslash(buf, v)
} else {
buf = escapeBytesQuotes(buf, v)
}
buf = append(buf, '\'')
}
case string:
buf = append(buf, '\'')
if mc.status&statusNoBackslashEscapes == 0 {
buf = escapeStringBackslash(buf, v)
} else {
buf = escapeStringQuotes(buf, v)
}
buf = append(buf, '\'')
default:
return "", driver.ErrSkip
}
if len(buf)+4 > mc.maxAllowedPacket {
return "", driver.ErrSkip
}
}
if argPos != len(args) {
return "", driver.ErrSkip
}
return string(buf), nil
}
func (mc *mysqlConn) Exec(query string, args []driver.Value) (driver.Result, error) {
if mc.closed.Load() {
mc.log(ErrInvalidConn)
return nil, driver.ErrBadConn
}
if len(args) != 0 {
if !mc.cfg.InterpolateParams {
return nil, driver.ErrSkip
}
// try to interpolate the parameters to save extra roundtrips for preparing and closing a statement
prepared, err := mc.interpolateParams(query, args)
if err != nil {
return nil, err
}
query = prepared
}
err := mc.exec(query)
if err == nil {
copied := mc.result
return &copied, err
}
return nil, mc.markBadConn(err)
}
// Internal function to execute commands
func (mc *mysqlConn) exec(query string) error {
handleOk := mc.clearResult()
// Send command
if err := mc.writeCommandPacketStr(comQuery, query); err != nil {
return mc.markBadConn(err)
}
// Read Result
resLen, err := handleOk.readResultSetHeaderPacket()
if err != nil {
return err
}
if resLen > 0 {
// columns
if err := mc.readUntilEOF(); err != nil {
return err
}
// rows
if err := mc.readUntilEOF(); err != nil {
return err
}
}
return handleOk.discardResults()
}
func (mc *mysqlConn) Query(query string, args []driver.Value) (driver.Rows, error) {
return mc.query(query, args)
}
func (mc *mysqlConn) query(query string, args []driver.Value) (*textRows, error) {
handleOk := mc.clearResult()
if mc.closed.Load() {
mc.log(ErrInvalidConn)
return nil, driver.ErrBadConn
}
if len(args) != 0 {
if !mc.cfg.InterpolateParams {
return nil, driver.ErrSkip
}
// try client-side prepare to reduce roundtrip
prepared, err := mc.interpolateParams(query, args)
if err != nil {
return nil, err
}
query = prepared
}
// Send command
err := mc.writeCommandPacketStr(comQuery, query)
if err == nil {
// Read Result
var resLen int
resLen, err = handleOk.readResultSetHeaderPacket()
if err == nil {
rows := new(textRows)
rows.mc = mc
if resLen == 0 {
rows.rs.done = true
switch err := rows.NextResultSet(); err {
case nil, io.EOF:
return rows, nil
default:
return nil, err
}
}
// Columns
rows.rs.columns, err = mc.readColumns(resLen)
return rows, err
}
}
return nil, mc.markBadConn(err)
}
// Gets the value of the given MySQL System Variable
// The returned byte slice is only valid until the next read
func (mc *mysqlConn) getSystemVar(name string) ([]byte, error) {
// Send command
handleOk := mc.clearResult()
if err := mc.writeCommandPacketStr(comQuery, "SELECT @@"+name); err != nil {
return nil, err
}
// Read Result
resLen, err := handleOk.readResultSetHeaderPacket()
if err == nil {
rows := new(textRows)
rows.mc = mc
rows.rs.columns = []mysqlField{{fieldType: fieldTypeVarChar}}
if resLen > 0 {
// Columns
if err := mc.readUntilEOF(); err != nil {
return nil, err
}
}
dest := make([]driver.Value, resLen)
if err = rows.readRow(dest); err == nil {
return dest[0].([]byte), mc.readUntilEOF()
}
}
return nil, err
}
// finish is called when the query has canceled.
func (mc *mysqlConn) cancel(err error) {
mc.canceled.Set(err)
mc.cleanup()
}
// finish is called when the query has succeeded.
func (mc *mysqlConn) finish() {
if !mc.watching || mc.finished == nil {
return
}
select {
case mc.finished <- struct{}{}:
mc.watching = false
case <-mc.closech:
}
}
// Ping implements driver.Pinger interface
func (mc *mysqlConn) Ping(ctx context.Context) (err error) {
if mc.closed.Load() {
mc.log(ErrInvalidConn)
return driver.ErrBadConn
}
if err = mc.watchCancel(ctx); err != nil {
return
}
defer mc.finish()
handleOk := mc.clearResult()
if err = mc.writeCommandPacket(comPing); err != nil {
return mc.markBadConn(err)
}
return handleOk.readResultOK()
}
// BeginTx implements driver.ConnBeginTx interface
func (mc *mysqlConn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
if mc.closed.Load() {
return nil, driver.ErrBadConn
}
if err := mc.watchCancel(ctx); err != nil {
return nil, err
}
defer mc.finish()
if sql.IsolationLevel(opts.Isolation) != sql.LevelDefault {
level, err := mapIsolationLevel(opts.Isolation)
if err != nil {
return nil, err
}
err = mc.exec("SET TRANSACTION ISOLATION LEVEL " + level)
if err != nil {
return nil, err
}
}
return mc.begin(opts.ReadOnly)
}
func (mc *mysqlConn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
dargs, err := namedValueToValue(args)
if err != nil {
return nil, err
}
if err := mc.watchCancel(ctx); err != nil {
return nil, err
}
rows, err := mc.query(query, dargs)
if err != nil {
mc.finish()
return nil, err
}
rows.finish = mc.finish
return rows, err
}
func (mc *mysqlConn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
dargs, err := namedValueToValue(args)
if err != nil {
return nil, err
}
if err := mc.watchCancel(ctx); err != nil {
return nil, err
}
defer mc.finish()
return mc.Exec(query, dargs)
}
func (mc *mysqlConn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
if err := mc.watchCancel(ctx); err != nil {
return nil, err
}
stmt, err := mc.Prepare(query)
mc.finish()
if err != nil {
return nil, err
}
select {
default:
case <-ctx.Done():
stmt.Close()
return nil, ctx.Err()
}
return stmt, nil
}
func (stmt *mysqlStmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
dargs, err := namedValueToValue(args)
if err != nil {
return nil, err
}
if err := stmt.mc.watchCancel(ctx); err != nil {
return nil, err
}
rows, err := stmt.query(dargs)
if err != nil {
stmt.mc.finish()
return nil, err
}
rows.finish = stmt.mc.finish
return rows, err
}
func (stmt *mysqlStmt) ExecContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
dargs, err := namedValueToValue(args)
if err != nil {
return nil, err
}
if err := stmt.mc.watchCancel(ctx); err != nil {
return nil, err
}
defer stmt.mc.finish()
return stmt.Exec(dargs)
}
func (mc *mysqlConn) watchCancel(ctx context.Context) error {
if mc.watching {
// Reach here if canceled,
// so the connection is already invalid
mc.cleanup()
return nil
}
// When ctx is already cancelled, don't watch it.
if err := ctx.Err(); err != nil {
return err
}
// When ctx is not cancellable, don't watch it.
if ctx.Done() == nil {
return nil
}
// When watcher is not alive, can't watch it.
if mc.watcher == nil {
return nil
}
mc.watching = true
mc.watcher <- ctx
return nil
}
func (mc *mysqlConn) startWatcher() {
watcher := make(chan context.Context, 1)
mc.watcher = watcher
finished := make(chan struct{})
mc.finished = finished
go func() {
for {
var ctx context.Context
select {
case ctx = <-watcher:
case <-mc.closech:
return
}
select {
case <-ctx.Done():
mc.cancel(ctx.Err())
case <-finished:
case <-mc.closech:
return
}
}
}()
}
func (mc *mysqlConn) CheckNamedValue(nv *driver.NamedValue) (err error) {
nv.Value, err = converter{}.ConvertValue(nv.Value)
return
}
// ResetSession implements driver.SessionResetter.
// (From Go 1.10)
func (mc *mysqlConn) ResetSession(ctx context.Context) error {
if mc.closed.Load() {
return driver.ErrBadConn
}
// Perform a stale connection check. We only perform this check for
// the first query on a connection that has been checked out of the
// connection pool: a fresh connection from the pool is more likely
// to be stale, and it has not performed any previous writes that
// could cause data corruption, so it's safe to return ErrBadConn
// if the check fails.
if mc.cfg.CheckConnLiveness {
conn := mc.netConn
if mc.rawConn != nil {
conn = mc.rawConn
}
var err error
if mc.cfg.ReadTimeout != 0 {
err = conn.SetReadDeadline(time.Now().Add(mc.cfg.ReadTimeout))
}
if err == nil {
err = connCheck(conn)
}
if err != nil {
mc.log("closing bad idle connection: ", err)
return driver.ErrBadConn
}
}
return nil
}
// IsValid implements driver.Validator interface
// (From Go 1.15)
func (mc *mysqlConn) IsValid() bool {
return !mc.closed.Load()
}

197
vendor/github.com/go-sql-driver/mysql/connector.go generated vendored
View File

@ -1,197 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2018 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"context"
"database/sql/driver"
"net"
"os"
"strconv"
"strings"
)
type connector struct {
cfg *Config // immutable private copy.
encodedAttributes string // Encoded connection attributes.
}
func encodeConnectionAttributes(cfg *Config) string {
connAttrsBuf := make([]byte, 0)
// default connection attributes
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, connAttrClientName)
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, connAttrClientNameValue)
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, connAttrOS)
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, connAttrOSValue)
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, connAttrPlatform)
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, connAttrPlatformValue)
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, connAttrPid)
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, strconv.Itoa(os.Getpid()))
serverHost, _, _ := net.SplitHostPort(cfg.Addr)
if serverHost != "" {
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, connAttrServerHost)
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, serverHost)
}
// user-defined connection attributes
for _, connAttr := range strings.Split(cfg.ConnectionAttributes, ",") {
k, v, found := strings.Cut(connAttr, ":")
if !found {
continue
}
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, k)
connAttrsBuf = appendLengthEncodedString(connAttrsBuf, v)
}
return string(connAttrsBuf)
}
func newConnector(cfg *Config) *connector {
encodedAttributes := encodeConnectionAttributes(cfg)
return &connector{
cfg: cfg,
encodedAttributes: encodedAttributes,
}
}
// Connect implements driver.Connector interface.
// Connect returns a connection to the database.
func (c *connector) Connect(ctx context.Context) (driver.Conn, error) {
var err error
// Invoke beforeConnect if present, with a copy of the configuration
cfg := c.cfg
if c.cfg.beforeConnect != nil {
cfg = c.cfg.Clone()
err = c.cfg.beforeConnect(ctx, cfg)
if err != nil {
return nil, err
}
}
// New mysqlConn
mc := &mysqlConn{
maxAllowedPacket: maxPacketSize,
maxWriteSize: maxPacketSize - 1,
closech: make(chan struct{}),
cfg: cfg,
connector: c,
}
mc.parseTime = mc.cfg.ParseTime
// Connect to Server
dialsLock.RLock()
dial, ok := dials[mc.cfg.Net]
dialsLock.RUnlock()
if ok {
dctx := ctx
if mc.cfg.Timeout > 0 {
var cancel context.CancelFunc
dctx, cancel = context.WithTimeout(ctx, c.cfg.Timeout)
defer cancel()
}
mc.netConn, err = dial(dctx, mc.cfg.Addr)
} else {
nd := net.Dialer{Timeout: mc.cfg.Timeout}
mc.netConn, err = nd.DialContext(ctx, mc.cfg.Net, mc.cfg.Addr)
}
if err != nil {
return nil, err
}
mc.rawConn = mc.netConn
// Enable TCP Keepalives on TCP connections
if tc, ok := mc.netConn.(*net.TCPConn); ok {
if err := tc.SetKeepAlive(true); err != nil {
c.cfg.Logger.Print(err)
}
}
// Call startWatcher for context support (From Go 1.8)
mc.startWatcher()
if err := mc.watchCancel(ctx); err != nil {
mc.cleanup()
return nil, err
}
defer mc.finish()
mc.buf = newBuffer(mc.netConn)
// Set I/O timeouts
mc.buf.timeout = mc.cfg.ReadTimeout
mc.writeTimeout = mc.cfg.WriteTimeout
// Reading Handshake Initialization Packet
authData, plugin, err := mc.readHandshakePacket()
if err != nil {
mc.cleanup()
return nil, err
}
if plugin == "" {
plugin = defaultAuthPlugin
}
// Send Client Authentication Packet
authResp, err := mc.auth(authData, plugin)
if err != nil {
// try the default auth plugin, if using the requested plugin failed
c.cfg.Logger.Print("could not use requested auth plugin '"+plugin+"': ", err.Error())
plugin = defaultAuthPlugin
authResp, err = mc.auth(authData, plugin)
if err != nil {
mc.cleanup()
return nil, err
}
}
if err = mc.writeHandshakeResponsePacket(authResp, plugin); err != nil {
mc.cleanup()
return nil, err
}
// Handle response to auth packet, switch methods if possible
if err = mc.handleAuthResult(authData, plugin); err != nil {
// Authentication failed and MySQL has already closed the connection
// (https://dev.mysql.com/doc/internals/en/authentication-fails.html).
// Do not send COM_QUIT, just cleanup and return the error.
mc.cleanup()
return nil, err
}
if mc.cfg.MaxAllowedPacket > 0 {
mc.maxAllowedPacket = mc.cfg.MaxAllowedPacket
} else {
// Get max allowed packet size
maxap, err := mc.getSystemVar("max_allowed_packet")
if err != nil {
mc.Close()
return nil, err
}
mc.maxAllowedPacket = stringToInt(maxap) - 1
}
if mc.maxAllowedPacket < maxPacketSize {
mc.maxWriteSize = mc.maxAllowedPacket
}
// Handle DSN Params
err = mc.handleParams()
if err != nil {
mc.Close()
return nil, err
}
return mc, nil
}
// Driver implements driver.Connector interface.
// Driver returns &MySQLDriver{}.
func (c *connector) Driver() driver.Driver {
return &MySQLDriver{}
}

187
vendor/github.com/go-sql-driver/mysql/const.go generated vendored
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@ -1,187 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import "runtime"
const (
defaultAuthPlugin = "mysql_native_password"
defaultMaxAllowedPacket = 64 << 20 // 64 MiB. See https://github.com/go-sql-driver/mysql/issues/1355
minProtocolVersion = 10
maxPacketSize = 1<<24 - 1
timeFormat = "2006-01-02 15:04:05.999999"
// Connection attributes
// See https://dev.mysql.com/doc/refman/8.0/en/performance-schema-connection-attribute-tables.html#performance-schema-connection-attributes-available
connAttrClientName = "_client_name"
connAttrClientNameValue = "Go-MySQL-Driver"
connAttrOS = "_os"
connAttrOSValue = runtime.GOOS
connAttrPlatform = "_platform"
connAttrPlatformValue = runtime.GOARCH
connAttrPid = "_pid"
connAttrServerHost = "_server_host"
)
// MySQL constants documentation:
// http://dev.mysql.com/doc/internals/en/client-server-protocol.html
const (
iOK byte = 0x00
iAuthMoreData byte = 0x01
iLocalInFile byte = 0xfb
iEOF byte = 0xfe
iERR byte = 0xff
)
// https://dev.mysql.com/doc/internals/en/capability-flags.html#packet-Protocol::CapabilityFlags
type clientFlag uint32
const (
clientLongPassword clientFlag = 1 << iota
clientFoundRows
clientLongFlag
clientConnectWithDB
clientNoSchema
clientCompress
clientODBC
clientLocalFiles
clientIgnoreSpace
clientProtocol41
clientInteractive
clientSSL
clientIgnoreSIGPIPE
clientTransactions
clientReserved
clientSecureConn
clientMultiStatements
clientMultiResults
clientPSMultiResults
clientPluginAuth
clientConnectAttrs
clientPluginAuthLenEncClientData
clientCanHandleExpiredPasswords
clientSessionTrack
clientDeprecateEOF
)
const (
comQuit byte = iota + 1
comInitDB
comQuery
comFieldList
comCreateDB
comDropDB
comRefresh
comShutdown
comStatistics
comProcessInfo
comConnect
comProcessKill
comDebug
comPing
comTime
comDelayedInsert
comChangeUser
comBinlogDump
comTableDump
comConnectOut
comRegisterSlave
comStmtPrepare
comStmtExecute
comStmtSendLongData
comStmtClose
comStmtReset
comSetOption
comStmtFetch
)
// https://dev.mysql.com/doc/internals/en/com-query-response.html#packet-Protocol::ColumnType
type fieldType byte
const (
fieldTypeDecimal fieldType = iota
fieldTypeTiny
fieldTypeShort
fieldTypeLong
fieldTypeFloat
fieldTypeDouble
fieldTypeNULL
fieldTypeTimestamp
fieldTypeLongLong
fieldTypeInt24
fieldTypeDate
fieldTypeTime
fieldTypeDateTime
fieldTypeYear
fieldTypeNewDate
fieldTypeVarChar
fieldTypeBit
)
const (
fieldTypeJSON fieldType = iota + 0xf5
fieldTypeNewDecimal
fieldTypeEnum
fieldTypeSet
fieldTypeTinyBLOB
fieldTypeMediumBLOB
fieldTypeLongBLOB
fieldTypeBLOB
fieldTypeVarString
fieldTypeString
fieldTypeGeometry
)
type fieldFlag uint16
const (
flagNotNULL fieldFlag = 1 << iota
flagPriKey
flagUniqueKey
flagMultipleKey
flagBLOB
flagUnsigned
flagZeroFill
flagBinary
flagEnum
flagAutoIncrement
flagTimestamp
flagSet
flagUnknown1
flagUnknown2
flagUnknown3
flagUnknown4
)
// http://dev.mysql.com/doc/internals/en/status-flags.html
type statusFlag uint16
const (
statusInTrans statusFlag = 1 << iota
statusInAutocommit
statusReserved // Not in documentation
statusMoreResultsExists
statusNoGoodIndexUsed
statusNoIndexUsed
statusCursorExists
statusLastRowSent
statusDbDropped
statusNoBackslashEscapes
statusMetadataChanged
statusQueryWasSlow
statusPsOutParams
statusInTransReadonly
statusSessionStateChanged
)
const (
cachingSha2PasswordRequestPublicKey = 2
cachingSha2PasswordFastAuthSuccess = 3
cachingSha2PasswordPerformFullAuthentication = 4
)

118
vendor/github.com/go-sql-driver/mysql/driver.go generated vendored
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@ -1,118 +0,0 @@
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
// Package mysql provides a MySQL driver for Go's database/sql package.
//
// The driver should be used via the database/sql package:
//
// import "database/sql"
// import _ "github.com/go-sql-driver/mysql"
//
// db, err := sql.Open("mysql", "user:password@/dbname")
//
// See https://github.com/go-sql-driver/mysql#usage for details
package mysql
import (
"context"
"database/sql"
"database/sql/driver"
"net"
"sync"
)
// MySQLDriver is exported to make the driver directly accessible.
// In general the driver is used via the database/sql package.
type MySQLDriver struct{}
// DialFunc is a function which can be used to establish the network connection.
// Custom dial functions must be registered with RegisterDial
//
// Deprecated: users should register a DialContextFunc instead
type DialFunc func(addr string) (net.Conn, error)
// DialContextFunc is a function which can be used to establish the network connection.
// Custom dial functions must be registered with RegisterDialContext
type DialContextFunc func(ctx context.Context, addr string) (net.Conn, error)
var (
dialsLock sync.RWMutex
dials map[string]DialContextFunc
)
// RegisterDialContext registers a custom dial function. It can then be used by the
// network address mynet(addr), where mynet is the registered new network.
// The current context for the connection and its address is passed to the dial function.
func RegisterDialContext(net string, dial DialContextFunc) {
dialsLock.Lock()
defer dialsLock.Unlock()
if dials == nil {
dials = make(map[string]DialContextFunc)
}
dials[net] = dial
}
// DeregisterDialContext removes the custom dial function registered with the given net.
func DeregisterDialContext(net string) {
dialsLock.Lock()
defer dialsLock.Unlock()
if dials != nil {
delete(dials, net)
}
}
// RegisterDial registers a custom dial function. It can then be used by the
// network address mynet(addr), where mynet is the registered new network.
// addr is passed as a parameter to the dial function.
//
// Deprecated: users should call RegisterDialContext instead
func RegisterDial(network string, dial DialFunc) {
RegisterDialContext(network, func(_ context.Context, addr string) (net.Conn, error) {
return dial(addr)
})
}
// Open new Connection.
// See https://github.com/go-sql-driver/mysql#dsn-data-source-name for how
// the DSN string is formatted
func (d MySQLDriver) Open(dsn string) (driver.Conn, error) {
cfg, err := ParseDSN(dsn)
if err != nil {
return nil, err
}
c := newConnector(cfg)
return c.Connect(context.Background())
}
// This variable can be replaced with -ldflags like below:
// go build "-ldflags=-X github.com/go-sql-driver/mysql.driverName=custom"
var driverName = "mysql"
func init() {
if driverName != "" {
sql.Register(driverName, &MySQLDriver{})
}
}
// NewConnector returns new driver.Connector.
func NewConnector(cfg *Config) (driver.Connector, error) {
cfg = cfg.Clone()
// normalize the contents of cfg so calls to NewConnector have the same
// behavior as MySQLDriver.OpenConnector
if err := cfg.normalize(); err != nil {
return nil, err
}
return newConnector(cfg), nil
}
// OpenConnector implements driver.DriverContext.
func (d MySQLDriver) OpenConnector(dsn string) (driver.Connector, error) {
cfg, err := ParseDSN(dsn)
if err != nil {
return nil, err
}
return newConnector(cfg), nil
}

653
vendor/github.com/go-sql-driver/mysql/dsn.go generated vendored
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@ -1,653 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2016 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"bytes"
"context"
"crypto/rsa"
"crypto/tls"
"errors"
"fmt"
"math/big"
"net"
"net/url"
"sort"
"strconv"
"strings"
"time"
)
var (
errInvalidDSNUnescaped = errors.New("invalid DSN: did you forget to escape a param value?")
errInvalidDSNAddr = errors.New("invalid DSN: network address not terminated (missing closing brace)")
errInvalidDSNNoSlash = errors.New("invalid DSN: missing the slash separating the database name")
errInvalidDSNUnsafeCollation = errors.New("invalid DSN: interpolateParams can not be used with unsafe collations")
)
// Config is a configuration parsed from a DSN string.
// If a new Config is created instead of being parsed from a DSN string,
// the NewConfig function should be used, which sets default values.
type Config struct {
// non boolean fields
User string // Username
Passwd string // Password (requires User)
Net string // Network (e.g. "tcp", "tcp6", "unix". default: "tcp")
Addr string // Address (default: "127.0.0.1:3306" for "tcp" and "/tmp/mysql.sock" for "unix")
DBName string // Database name
Params map[string]string // Connection parameters
ConnectionAttributes string // Connection Attributes, comma-delimited string of user-defined "key:value" pairs
Collation string // Connection collation
Loc *time.Location // Location for time.Time values
MaxAllowedPacket int // Max packet size allowed
ServerPubKey string // Server public key name
TLSConfig string // TLS configuration name
TLS *tls.Config // TLS configuration, its priority is higher than TLSConfig
Timeout time.Duration // Dial timeout
ReadTimeout time.Duration // I/O read timeout
WriteTimeout time.Duration // I/O write timeout
Logger Logger // Logger
// boolean fields
AllowAllFiles bool // Allow all files to be used with LOAD DATA LOCAL INFILE
AllowCleartextPasswords bool // Allows the cleartext client side plugin
AllowFallbackToPlaintext bool // Allows fallback to unencrypted connection if server does not support TLS
AllowNativePasswords bool // Allows the native password authentication method
AllowOldPasswords bool // Allows the old insecure password method
CheckConnLiveness bool // Check connections for liveness before using them
ClientFoundRows bool // Return number of matching rows instead of rows changed
ColumnsWithAlias bool // Prepend table alias to column names
InterpolateParams bool // Interpolate placeholders into query string
MultiStatements bool // Allow multiple statements in one query
ParseTime bool // Parse time values to time.Time
RejectReadOnly bool // Reject read-only connections
// unexported fields. new options should be come here
beforeConnect func(context.Context, *Config) error // Invoked before a connection is established
pubKey *rsa.PublicKey // Server public key
timeTruncate time.Duration // Truncate time.Time values to the specified duration
}
// Functional Options Pattern
// https://dave.cheney.net/2014/10/17/functional-options-for-friendly-apis
type Option func(*Config) error
// NewConfig creates a new Config and sets default values.
func NewConfig() *Config {
cfg := &Config{
Loc: time.UTC,
MaxAllowedPacket: defaultMaxAllowedPacket,
Logger: defaultLogger,
AllowNativePasswords: true,
CheckConnLiveness: true,
}
return cfg
}
// Apply applies the given options to the Config object.
func (c *Config) Apply(opts ...Option) error {
for _, opt := range opts {
err := opt(c)
if err != nil {
return err
}
}
return nil
}
// TimeTruncate sets the time duration to truncate time.Time values in
// query parameters.
func TimeTruncate(d time.Duration) Option {
return func(cfg *Config) error {
cfg.timeTruncate = d
return nil
}
}
// BeforeConnect sets the function to be invoked before a connection is established.
func BeforeConnect(fn func(context.Context, *Config) error) Option {
return func(cfg *Config) error {
cfg.beforeConnect = fn
return nil
}
}
func (cfg *Config) Clone() *Config {
cp := *cfg
if cp.TLS != nil {
cp.TLS = cfg.TLS.Clone()
}
if len(cp.Params) > 0 {
cp.Params = make(map[string]string, len(cfg.Params))
for k, v := range cfg.Params {
cp.Params[k] = v
}
}
if cfg.pubKey != nil {
cp.pubKey = &rsa.PublicKey{
N: new(big.Int).Set(cfg.pubKey.N),
E: cfg.pubKey.E,
}
}
return &cp
}
func (cfg *Config) normalize() error {
if cfg.InterpolateParams && cfg.Collation != "" && unsafeCollations[cfg.Collation] {
return errInvalidDSNUnsafeCollation
}
// Set default network if empty
if cfg.Net == "" {
cfg.Net = "tcp"
}
// Set default address if empty
if cfg.Addr == "" {
switch cfg.Net {
case "tcp":
cfg.Addr = "127.0.0.1:3306"
case "unix":
cfg.Addr = "/tmp/mysql.sock"
default:
return errors.New("default addr for network '" + cfg.Net + "' unknown")
}
} else if cfg.Net == "tcp" {
cfg.Addr = ensureHavePort(cfg.Addr)
}
if cfg.TLS == nil {
switch cfg.TLSConfig {
case "false", "":
// don't set anything
case "true":
cfg.TLS = &tls.Config{}
case "skip-verify":
cfg.TLS = &tls.Config{InsecureSkipVerify: true}
case "preferred":
cfg.TLS = &tls.Config{InsecureSkipVerify: true}
cfg.AllowFallbackToPlaintext = true
default:
cfg.TLS = getTLSConfigClone(cfg.TLSConfig)
if cfg.TLS == nil {
return errors.New("invalid value / unknown config name: " + cfg.TLSConfig)
}
}
}
if cfg.TLS != nil && cfg.TLS.ServerName == "" && !cfg.TLS.InsecureSkipVerify {
host, _, err := net.SplitHostPort(cfg.Addr)
if err == nil {
cfg.TLS.ServerName = host
}
}
if cfg.ServerPubKey != "" {
cfg.pubKey = getServerPubKey(cfg.ServerPubKey)
if cfg.pubKey == nil {
return errors.New("invalid value / unknown server pub key name: " + cfg.ServerPubKey)
}
}
if cfg.Logger == nil {
cfg.Logger = defaultLogger
}
return nil
}
func writeDSNParam(buf *bytes.Buffer, hasParam *bool, name, value string) {
buf.Grow(1 + len(name) + 1 + len(value))
if !*hasParam {
*hasParam = true
buf.WriteByte('?')
} else {
buf.WriteByte('&')
}
buf.WriteString(name)
buf.WriteByte('=')
buf.WriteString(value)
}
// FormatDSN formats the given Config into a DSN string which can be passed to
// the driver.
//
// Note: use [NewConnector] and [database/sql.OpenDB] to open a connection from a [*Config].
func (cfg *Config) FormatDSN() string {
var buf bytes.Buffer
// [username[:password]@]
if len(cfg.User) > 0 {
buf.WriteString(cfg.User)
if len(cfg.Passwd) > 0 {
buf.WriteByte(':')
buf.WriteString(cfg.Passwd)
}
buf.WriteByte('@')
}
// [protocol[(address)]]
if len(cfg.Net) > 0 {
buf.WriteString(cfg.Net)
if len(cfg.Addr) > 0 {
buf.WriteByte('(')
buf.WriteString(cfg.Addr)
buf.WriteByte(')')
}
}
// /dbname
buf.WriteByte('/')
buf.WriteString(url.PathEscape(cfg.DBName))
// [?param1=value1&...&paramN=valueN]
hasParam := false
if cfg.AllowAllFiles {
hasParam = true
buf.WriteString("?allowAllFiles=true")
}
if cfg.AllowCleartextPasswords {
writeDSNParam(&buf, &hasParam, "allowCleartextPasswords", "true")
}
if cfg.AllowFallbackToPlaintext {
writeDSNParam(&buf, &hasParam, "allowFallbackToPlaintext", "true")
}
if !cfg.AllowNativePasswords {
writeDSNParam(&buf, &hasParam, "allowNativePasswords", "false")
}
if cfg.AllowOldPasswords {
writeDSNParam(&buf, &hasParam, "allowOldPasswords", "true")
}
if !cfg.CheckConnLiveness {
writeDSNParam(&buf, &hasParam, "checkConnLiveness", "false")
}
if cfg.ClientFoundRows {
writeDSNParam(&buf, &hasParam, "clientFoundRows", "true")
}
if col := cfg.Collation; col != "" {
writeDSNParam(&buf, &hasParam, "collation", col)
}
if cfg.ColumnsWithAlias {
writeDSNParam(&buf, &hasParam, "columnsWithAlias", "true")
}
if cfg.InterpolateParams {
writeDSNParam(&buf, &hasParam, "interpolateParams", "true")
}
if cfg.Loc != time.UTC && cfg.Loc != nil {
writeDSNParam(&buf, &hasParam, "loc", url.QueryEscape(cfg.Loc.String()))
}
if cfg.MultiStatements {
writeDSNParam(&buf, &hasParam, "multiStatements", "true")
}
if cfg.ParseTime {
writeDSNParam(&buf, &hasParam, "parseTime", "true")
}
if cfg.timeTruncate > 0 {
writeDSNParam(&buf, &hasParam, "timeTruncate", cfg.timeTruncate.String())
}
if cfg.ReadTimeout > 0 {
writeDSNParam(&buf, &hasParam, "readTimeout", cfg.ReadTimeout.String())
}
if cfg.RejectReadOnly {
writeDSNParam(&buf, &hasParam, "rejectReadOnly", "true")
}
if len(cfg.ServerPubKey) > 0 {
writeDSNParam(&buf, &hasParam, "serverPubKey", url.QueryEscape(cfg.ServerPubKey))
}
if cfg.Timeout > 0 {
writeDSNParam(&buf, &hasParam, "timeout", cfg.Timeout.String())
}
if len(cfg.TLSConfig) > 0 {
writeDSNParam(&buf, &hasParam, "tls", url.QueryEscape(cfg.TLSConfig))
}
if cfg.WriteTimeout > 0 {
writeDSNParam(&buf, &hasParam, "writeTimeout", cfg.WriteTimeout.String())
}
if cfg.MaxAllowedPacket != defaultMaxAllowedPacket {
writeDSNParam(&buf, &hasParam, "maxAllowedPacket", strconv.Itoa(cfg.MaxAllowedPacket))
}
// other params
if cfg.Params != nil {
var params []string
for param := range cfg.Params {
params = append(params, param)
}
sort.Strings(params)
for _, param := range params {
writeDSNParam(&buf, &hasParam, param, url.QueryEscape(cfg.Params[param]))
}
}
return buf.String()
}
// ParseDSN parses the DSN string to a Config
func ParseDSN(dsn string) (cfg *Config, err error) {
// New config with some default values
cfg = NewConfig()
// [user[:password]@][net[(addr)]]/dbname[?param1=value1&paramN=valueN]
// Find the last '/' (since the password or the net addr might contain a '/')
foundSlash := false
for i := len(dsn) - 1; i >= 0; i-- {
if dsn[i] == '/' {
foundSlash = true
var j, k int
// left part is empty if i <= 0
if i > 0 {
// [username[:password]@][protocol[(address)]]
// Find the last '@' in dsn[:i]
for j = i; j >= 0; j-- {
if dsn[j] == '@' {
// username[:password]
// Find the first ':' in dsn[:j]
for k = 0; k < j; k++ {
if dsn[k] == ':' {
cfg.Passwd = dsn[k+1 : j]
break
}
}
cfg.User = dsn[:k]
break
}
}
// [protocol[(address)]]
// Find the first '(' in dsn[j+1:i]
for k = j + 1; k < i; k++ {
if dsn[k] == '(' {
// dsn[i-1] must be == ')' if an address is specified
if dsn[i-1] != ')' {
if strings.ContainsRune(dsn[k+1:i], ')') {
return nil, errInvalidDSNUnescaped
}
return nil, errInvalidDSNAddr
}
cfg.Addr = dsn[k+1 : i-1]
break
}
}
cfg.Net = dsn[j+1 : k]
}
// dbname[?param1=value1&...&paramN=valueN]
// Find the first '?' in dsn[i+1:]
for j = i + 1; j < len(dsn); j++ {
if dsn[j] == '?' {
if err = parseDSNParams(cfg, dsn[j+1:]); err != nil {
return
}
break
}
}
dbname := dsn[i+1 : j]
if cfg.DBName, err = url.PathUnescape(dbname); err != nil {
return nil, fmt.Errorf("invalid dbname %q: %w", dbname, err)
}
break
}
}
if !foundSlash && len(dsn) > 0 {
return nil, errInvalidDSNNoSlash
}
if err = cfg.normalize(); err != nil {
return nil, err
}
return
}
// parseDSNParams parses the DSN "query string"
// Values must be url.QueryEscape'ed
func parseDSNParams(cfg *Config, params string) (err error) {
for _, v := range strings.Split(params, "&") {
key, value, found := strings.Cut(v, "=")
if !found {
continue
}
// cfg params
switch key {
// Disable INFILE allowlist / enable all files
case "allowAllFiles":
var isBool bool
cfg.AllowAllFiles, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Use cleartext authentication mode (MySQL 5.5.10+)
case "allowCleartextPasswords":
var isBool bool
cfg.AllowCleartextPasswords, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Allow fallback to unencrypted connection if server does not support TLS
case "allowFallbackToPlaintext":
var isBool bool
cfg.AllowFallbackToPlaintext, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Use native password authentication
case "allowNativePasswords":
var isBool bool
cfg.AllowNativePasswords, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Use old authentication mode (pre MySQL 4.1)
case "allowOldPasswords":
var isBool bool
cfg.AllowOldPasswords, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Check connections for Liveness before using them
case "checkConnLiveness":
var isBool bool
cfg.CheckConnLiveness, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Switch "rowsAffected" mode
case "clientFoundRows":
var isBool bool
cfg.ClientFoundRows, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Collation
case "collation":
cfg.Collation = value
case "columnsWithAlias":
var isBool bool
cfg.ColumnsWithAlias, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Compression
case "compress":
return errors.New("compression not implemented yet")
// Enable client side placeholder substitution
case "interpolateParams":
var isBool bool
cfg.InterpolateParams, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Time Location
case "loc":
if value, err = url.QueryUnescape(value); err != nil {
return
}
cfg.Loc, err = time.LoadLocation(value)
if err != nil {
return
}
// multiple statements in one query
case "multiStatements":
var isBool bool
cfg.MultiStatements, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// time.Time parsing
case "parseTime":
var isBool bool
cfg.ParseTime, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// time.Time truncation
case "timeTruncate":
cfg.timeTruncate, err = time.ParseDuration(value)
if err != nil {
return fmt.Errorf("invalid timeTruncate value: %v, error: %w", value, err)
}
// I/O read Timeout
case "readTimeout":
cfg.ReadTimeout, err = time.ParseDuration(value)
if err != nil {
return
}
// Reject read-only connections
case "rejectReadOnly":
var isBool bool
cfg.RejectReadOnly, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Server public key
case "serverPubKey":
name, err := url.QueryUnescape(value)
if err != nil {
return fmt.Errorf("invalid value for server pub key name: %v", err)
}
cfg.ServerPubKey = name
// Strict mode
case "strict":
panic("strict mode has been removed. See https://github.com/go-sql-driver/mysql/wiki/strict-mode")
// Dial Timeout
case "timeout":
cfg.Timeout, err = time.ParseDuration(value)
if err != nil {
return
}
// TLS-Encryption
case "tls":
boolValue, isBool := readBool(value)
if isBool {
if boolValue {
cfg.TLSConfig = "true"
} else {
cfg.TLSConfig = "false"
}
} else if vl := strings.ToLower(value); vl == "skip-verify" || vl == "preferred" {
cfg.TLSConfig = vl
} else {
name, err := url.QueryUnescape(value)
if err != nil {
return fmt.Errorf("invalid value for TLS config name: %v", err)
}
cfg.TLSConfig = name
}
// I/O write Timeout
case "writeTimeout":
cfg.WriteTimeout, err = time.ParseDuration(value)
if err != nil {
return
}
case "maxAllowedPacket":
cfg.MaxAllowedPacket, err = strconv.Atoi(value)
if err != nil {
return
}
// Connection attributes
case "connectionAttributes":
connectionAttributes, err := url.QueryUnescape(value)
if err != nil {
return fmt.Errorf("invalid connectionAttributes value: %v", err)
}
cfg.ConnectionAttributes = connectionAttributes
default:
// lazy init
if cfg.Params == nil {
cfg.Params = make(map[string]string)
}
if cfg.Params[key], err = url.QueryUnescape(value); err != nil {
return
}
}
}
return
}
func ensureHavePort(addr string) string {
if _, _, err := net.SplitHostPort(addr); err != nil {
return net.JoinHostPort(addr, "3306")
}
return addr
}

83
vendor/github.com/go-sql-driver/mysql/errors.go generated vendored
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@ -1,83 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"errors"
"fmt"
"log"
"os"
)
// Various errors the driver might return. Can change between driver versions.
var (
ErrInvalidConn = errors.New("invalid connection")
ErrMalformPkt = errors.New("malformed packet")
ErrNoTLS = errors.New("TLS requested but server does not support TLS")
ErrCleartextPassword = errors.New("this user requires clear text authentication. If you still want to use it, please add 'allowCleartextPasswords=1' to your DSN")
ErrNativePassword = errors.New("this user requires mysql native password authentication")
ErrOldPassword = errors.New("this user requires old password authentication. If you still want to use it, please add 'allowOldPasswords=1' to your DSN. See also https://github.com/go-sql-driver/mysql/wiki/old_passwords")
ErrUnknownPlugin = errors.New("this authentication plugin is not supported")
ErrOldProtocol = errors.New("MySQL server does not support required protocol 41+")
ErrPktSync = errors.New("commands out of sync. You can't run this command now")
ErrPktSyncMul = errors.New("commands out of sync. Did you run multiple statements at once?")
ErrPktTooLarge = errors.New("packet for query is too large. Try adjusting the `Config.MaxAllowedPacket`")
ErrBusyBuffer = errors.New("busy buffer")
// errBadConnNoWrite is used for connection errors where nothing was sent to the database yet.
// If this happens first in a function starting a database interaction, it should be replaced by driver.ErrBadConn
// to trigger a resend.
// See https://github.com/go-sql-driver/mysql/pull/302
errBadConnNoWrite = errors.New("bad connection")
)
var defaultLogger = Logger(log.New(os.Stderr, "[mysql] ", log.Ldate|log.Ltime|log.Lshortfile))
// Logger is used to log critical error messages.
type Logger interface {
Print(v ...any)
}
// NopLogger is a nop implementation of the Logger interface.
type NopLogger struct{}
// Print implements Logger interface.
func (nl *NopLogger) Print(_ ...any) {}
// SetLogger is used to set the default logger for critical errors.
// The initial logger is os.Stderr.
func SetLogger(logger Logger) error {
if logger == nil {
return errors.New("logger is nil")
}
defaultLogger = logger
return nil
}
// MySQLError is an error type which represents a single MySQL error
type MySQLError struct {
Number uint16
SQLState [5]byte
Message string
}
func (me *MySQLError) Error() string {
if me.SQLState != [5]byte{} {
return fmt.Sprintf("Error %d (%s): %s", me.Number, me.SQLState, me.Message)
}
return fmt.Sprintf("Error %d: %s", me.Number, me.Message)
}
func (me *MySQLError) Is(err error) bool {
if merr, ok := err.(*MySQLError); ok {
return merr.Number == me.Number
}
return false
}

222
vendor/github.com/go-sql-driver/mysql/fields.go generated vendored
View File

@ -1,222 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2017 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"database/sql"
"reflect"
)
func (mf *mysqlField) typeDatabaseName() string {
switch mf.fieldType {
case fieldTypeBit:
return "BIT"
case fieldTypeBLOB:
if mf.charSet != binaryCollationID {
return "TEXT"
}
return "BLOB"
case fieldTypeDate:
return "DATE"
case fieldTypeDateTime:
return "DATETIME"
case fieldTypeDecimal:
return "DECIMAL"
case fieldTypeDouble:
return "DOUBLE"
case fieldTypeEnum:
return "ENUM"
case fieldTypeFloat:
return "FLOAT"
case fieldTypeGeometry:
return "GEOMETRY"
case fieldTypeInt24:
if mf.flags&flagUnsigned != 0 {
return "UNSIGNED MEDIUMINT"
}
return "MEDIUMINT"
case fieldTypeJSON:
return "JSON"
case fieldTypeLong:
if mf.flags&flagUnsigned != 0 {
return "UNSIGNED INT"
}
return "INT"
case fieldTypeLongBLOB:
if mf.charSet != binaryCollationID {
return "LONGTEXT"
}
return "LONGBLOB"
case fieldTypeLongLong:
if mf.flags&flagUnsigned != 0 {
return "UNSIGNED BIGINT"
}
return "BIGINT"
case fieldTypeMediumBLOB:
if mf.charSet != binaryCollationID {
return "MEDIUMTEXT"
}
return "MEDIUMBLOB"
case fieldTypeNewDate:
return "DATE"
case fieldTypeNewDecimal:
return "DECIMAL"
case fieldTypeNULL:
return "NULL"
case fieldTypeSet:
return "SET"
case fieldTypeShort:
if mf.flags&flagUnsigned != 0 {
return "UNSIGNED SMALLINT"
}
return "SMALLINT"
case fieldTypeString:
if mf.flags&flagEnum != 0 {
return "ENUM"
} else if mf.flags&flagSet != 0 {
return "SET"
}
if mf.charSet == binaryCollationID {
return "BINARY"
}
return "CHAR"
case fieldTypeTime:
return "TIME"
case fieldTypeTimestamp:
return "TIMESTAMP"
case fieldTypeTiny:
if mf.flags&flagUnsigned != 0 {
return "UNSIGNED TINYINT"
}
return "TINYINT"
case fieldTypeTinyBLOB:
if mf.charSet != binaryCollationID {
return "TINYTEXT"
}
return "TINYBLOB"
case fieldTypeVarChar:
if mf.charSet == binaryCollationID {
return "VARBINARY"
}
return "VARCHAR"
case fieldTypeVarString:
if mf.charSet == binaryCollationID {
return "VARBINARY"
}
return "VARCHAR"
case fieldTypeYear:
return "YEAR"
default:
return ""
}
}
var (
scanTypeFloat32 = reflect.TypeOf(float32(0))
scanTypeFloat64 = reflect.TypeOf(float64(0))
scanTypeInt8 = reflect.TypeOf(int8(0))
scanTypeInt16 = reflect.TypeOf(int16(0))
scanTypeInt32 = reflect.TypeOf(int32(0))
scanTypeInt64 = reflect.TypeOf(int64(0))
scanTypeNullFloat = reflect.TypeOf(sql.NullFloat64{})
scanTypeNullInt = reflect.TypeOf(sql.NullInt64{})
scanTypeNullTime = reflect.TypeOf(sql.NullTime{})
scanTypeUint8 = reflect.TypeOf(uint8(0))
scanTypeUint16 = reflect.TypeOf(uint16(0))
scanTypeUint32 = reflect.TypeOf(uint32(0))
scanTypeUint64 = reflect.TypeOf(uint64(0))
scanTypeString = reflect.TypeOf("")
scanTypeNullString = reflect.TypeOf(sql.NullString{})
scanTypeBytes = reflect.TypeOf([]byte{})
scanTypeUnknown = reflect.TypeOf(new(any))
)
type mysqlField struct {
tableName string
name string
length uint32
flags fieldFlag
fieldType fieldType
decimals byte
charSet uint8
}
func (mf *mysqlField) scanType() reflect.Type {
switch mf.fieldType {
case fieldTypeTiny:
if mf.flags&flagNotNULL != 0 {
if mf.flags&flagUnsigned != 0 {
return scanTypeUint8
}
return scanTypeInt8
}
return scanTypeNullInt
case fieldTypeShort, fieldTypeYear:
if mf.flags&flagNotNULL != 0 {
if mf.flags&flagUnsigned != 0 {
return scanTypeUint16
}
return scanTypeInt16
}
return scanTypeNullInt
case fieldTypeInt24, fieldTypeLong:
if mf.flags&flagNotNULL != 0 {
if mf.flags&flagUnsigned != 0 {
return scanTypeUint32
}
return scanTypeInt32
}
return scanTypeNullInt
case fieldTypeLongLong:
if mf.flags&flagNotNULL != 0 {
if mf.flags&flagUnsigned != 0 {
return scanTypeUint64
}
return scanTypeInt64
}
return scanTypeNullInt
case fieldTypeFloat:
if mf.flags&flagNotNULL != 0 {
return scanTypeFloat32
}
return scanTypeNullFloat
case fieldTypeDouble:
if mf.flags&flagNotNULL != 0 {
return scanTypeFloat64
}
return scanTypeNullFloat
case fieldTypeBit, fieldTypeTinyBLOB, fieldTypeMediumBLOB, fieldTypeLongBLOB,
fieldTypeBLOB, fieldTypeVarString, fieldTypeString, fieldTypeGeometry:
if mf.charSet == binaryCollationID {
return scanTypeBytes
}
fallthrough
case fieldTypeDecimal, fieldTypeNewDecimal, fieldTypeVarChar,
fieldTypeEnum, fieldTypeSet, fieldTypeJSON, fieldTypeTime:
if mf.flags&flagNotNULL != 0 {
return scanTypeString
}
return scanTypeNullString
case fieldTypeDate, fieldTypeNewDate,
fieldTypeTimestamp, fieldTypeDateTime:
// NullTime is always returned for more consistent behavior as it can
// handle both cases of parseTime regardless if the field is nullable.
return scanTypeNullTime
default:
return scanTypeUnknown
}
}

182
vendor/github.com/go-sql-driver/mysql/infile.go generated vendored
View File

@ -1,182 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"fmt"
"io"
"os"
"strings"
"sync"
)
var (
fileRegister map[string]bool
fileRegisterLock sync.RWMutex
readerRegister map[string]func() io.Reader
readerRegisterLock sync.RWMutex
)
// RegisterLocalFile adds the given file to the file allowlist,
// so that it can be used by "LOAD DATA LOCAL INFILE <filepath>".
// Alternatively you can allow the use of all local files with
// the DSN parameter 'allowAllFiles=true'
//
// filePath := "/home/gopher/data.csv"
// mysql.RegisterLocalFile(filePath)
// err := db.Exec("LOAD DATA LOCAL INFILE '" + filePath + "' INTO TABLE foo")
// if err != nil {
// ...
func RegisterLocalFile(filePath string) {
fileRegisterLock.Lock()
// lazy map init
if fileRegister == nil {
fileRegister = make(map[string]bool)
}
fileRegister[strings.Trim(filePath, `"`)] = true
fileRegisterLock.Unlock()
}
// DeregisterLocalFile removes the given filepath from the allowlist.
func DeregisterLocalFile(filePath string) {
fileRegisterLock.Lock()
delete(fileRegister, strings.Trim(filePath, `"`))
fileRegisterLock.Unlock()
}
// RegisterReaderHandler registers a handler function which is used
// to receive a io.Reader.
// The Reader can be used by "LOAD DATA LOCAL INFILE Reader::<name>".
// If the handler returns a io.ReadCloser Close() is called when the
// request is finished.
//
// mysql.RegisterReaderHandler("data", func() io.Reader {
// var csvReader io.Reader // Some Reader that returns CSV data
// ... // Open Reader here
// return csvReader
// })
// err := db.Exec("LOAD DATA LOCAL INFILE 'Reader::data' INTO TABLE foo")
// if err != nil {
// ...
func RegisterReaderHandler(name string, handler func() io.Reader) {
readerRegisterLock.Lock()
// lazy map init
if readerRegister == nil {
readerRegister = make(map[string]func() io.Reader)
}
readerRegister[name] = handler
readerRegisterLock.Unlock()
}
// DeregisterReaderHandler removes the ReaderHandler function with
// the given name from the registry.
func DeregisterReaderHandler(name string) {
readerRegisterLock.Lock()
delete(readerRegister, name)
readerRegisterLock.Unlock()
}
func deferredClose(err *error, closer io.Closer) {
closeErr := closer.Close()
if *err == nil {
*err = closeErr
}
}
const defaultPacketSize = 16 * 1024 // 16KB is small enough for disk readahead and large enough for TCP
func (mc *okHandler) handleInFileRequest(name string) (err error) {
var rdr io.Reader
var data []byte
packetSize := defaultPacketSize
if mc.maxWriteSize < packetSize {
packetSize = mc.maxWriteSize
}
if idx := strings.Index(name, "Reader::"); idx == 0 || (idx > 0 && name[idx-1] == '/') { // io.Reader
// The server might return an an absolute path. See issue #355.
name = name[idx+8:]
readerRegisterLock.RLock()
handler, inMap := readerRegister[name]
readerRegisterLock.RUnlock()
if inMap {
rdr = handler()
if rdr != nil {
if cl, ok := rdr.(io.Closer); ok {
defer deferredClose(&err, cl)
}
} else {
err = fmt.Errorf("reader '%s' is <nil>", name)
}
} else {
err = fmt.Errorf("reader '%s' is not registered", name)
}
} else { // File
name = strings.Trim(name, `"`)
fileRegisterLock.RLock()
fr := fileRegister[name]
fileRegisterLock.RUnlock()
if mc.cfg.AllowAllFiles || fr {
var file *os.File
var fi os.FileInfo
if file, err = os.Open(name); err == nil {
defer deferredClose(&err, file)
// get file size
if fi, err = file.Stat(); err == nil {
rdr = file
if fileSize := int(fi.Size()); fileSize < packetSize {
packetSize = fileSize
}
}
}
} else {
err = fmt.Errorf("local file '%s' is not registered", name)
}
}
// send content packets
// if packetSize == 0, the Reader contains no data
if err == nil && packetSize > 0 {
data := make([]byte, 4+packetSize)
var n int
for err == nil {
n, err = rdr.Read(data[4:])
if n > 0 {
if ioErr := mc.conn().writePacket(data[:4+n]); ioErr != nil {
return ioErr
}
}
}
if err == io.EOF {
err = nil
}
}
// send empty packet (termination)
if data == nil {
data = make([]byte, 4)
}
if ioErr := mc.conn().writePacket(data[:4]); ioErr != nil {
return ioErr
}
// read OK packet
if err == nil {
return mc.readResultOK()
}
mc.conn().readPacket()
return err
}

71
vendor/github.com/go-sql-driver/mysql/nulltime.go generated vendored
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@ -1,71 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"database/sql"
"database/sql/driver"
"fmt"
"time"
)
// NullTime represents a time.Time that may be NULL.
// NullTime implements the Scanner interface so
// it can be used as a scan destination:
//
// var nt NullTime
// err := db.QueryRow("SELECT time FROM foo WHERE id=?", id).Scan(&nt)
// ...
// if nt.Valid {
// // use nt.Time
// } else {
// // NULL value
// }
//
// # This NullTime implementation is not driver-specific
//
// Deprecated: NullTime doesn't honor the loc DSN parameter.
// NullTime.Scan interprets a time as UTC, not the loc DSN parameter.
// Use sql.NullTime instead.
type NullTime sql.NullTime
// Scan implements the Scanner interface.
// The value type must be time.Time or string / []byte (formatted time-string),
// otherwise Scan fails.
func (nt *NullTime) Scan(value any) (err error) {
if value == nil {
nt.Time, nt.Valid = time.Time{}, false
return
}
switch v := value.(type) {
case time.Time:
nt.Time, nt.Valid = v, true
return
case []byte:
nt.Time, err = parseDateTime(v, time.UTC)
nt.Valid = (err == nil)
return
case string:
nt.Time, err = parseDateTime([]byte(v), time.UTC)
nt.Valid = (err == nil)
return
}
nt.Valid = false
return fmt.Errorf("can't convert %T to time.Time", value)
}
// Value implements the driver Valuer interface.
func (nt NullTime) Value() (driver.Value, error) {
if !nt.Valid {
return nil, nil
}
return nt.Time, nil
}

1406
vendor/github.com/go-sql-driver/mysql/packets.go generated vendored
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File diff suppressed because it is too large Load Diff

50
vendor/github.com/go-sql-driver/mysql/result.go generated vendored
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@ -1,50 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import "database/sql/driver"
// Result exposes data not available through *connection.Result.
//
// This is accessible by executing statements using sql.Conn.Raw() and
// downcasting the returned result:
//
// res, err := rawConn.Exec(...)
// res.(mysql.Result).AllRowsAffected()
type Result interface {
driver.Result
// AllRowsAffected returns a slice containing the affected rows for each
// executed statement.
AllRowsAffected() []int64
// AllLastInsertIds returns a slice containing the last inserted ID for each
// executed statement.
AllLastInsertIds() []int64
}
type mysqlResult struct {
// One entry in both slices is created for every executed statement result.
affectedRows []int64
insertIds []int64
}
func (res *mysqlResult) LastInsertId() (int64, error) {
return res.insertIds[len(res.insertIds)-1], nil
}
func (res *mysqlResult) RowsAffected() (int64, error) {
return res.affectedRows[len(res.affectedRows)-1], nil
}
func (res *mysqlResult) AllLastInsertIds() []int64 {
return append([]int64{}, res.insertIds...) // defensive copy
}
func (res *mysqlResult) AllRowsAffected() []int64 {
return append([]int64{}, res.affectedRows...) // defensive copy
}

232
vendor/github.com/go-sql-driver/mysql/rows.go generated vendored
View File

@ -1,232 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"database/sql/driver"
"io"
"math"
"reflect"
)
type resultSet struct {
columns []mysqlField
columnNames []string
done bool
}
type mysqlRows struct {
mc *mysqlConn
rs resultSet
finish func()
}
type binaryRows struct {
mysqlRows
}
type textRows struct {
mysqlRows
}
func (rows *mysqlRows) Columns() []string {
if rows.rs.columnNames != nil {
return rows.rs.columnNames
}
columns := make([]string, len(rows.rs.columns))
if rows.mc != nil && rows.mc.cfg.ColumnsWithAlias {
for i := range columns {
if tableName := rows.rs.columns[i].tableName; len(tableName) > 0 {
columns[i] = tableName + "." + rows.rs.columns[i].name
} else {
columns[i] = rows.rs.columns[i].name
}
}
} else {
for i := range columns {
columns[i] = rows.rs.columns[i].name
}
}
rows.rs.columnNames = columns
return columns
}
func (rows *mysqlRows) ColumnTypeDatabaseTypeName(i int) string {
return rows.rs.columns[i].typeDatabaseName()
}
// func (rows *mysqlRows) ColumnTypeLength(i int) (length int64, ok bool) {
// return int64(rows.rs.columns[i].length), true
// }
func (rows *mysqlRows) ColumnTypeNullable(i int) (nullable, ok bool) {
return rows.rs.columns[i].flags&flagNotNULL == 0, true
}
func (rows *mysqlRows) ColumnTypePrecisionScale(i int) (int64, int64, bool) {
column := rows.rs.columns[i]
decimals := int64(column.decimals)
switch column.fieldType {
case fieldTypeDecimal, fieldTypeNewDecimal:
if decimals > 0 {
return int64(column.length) - 2, decimals, true
}
return int64(column.length) - 1, decimals, true
case fieldTypeTimestamp, fieldTypeDateTime, fieldTypeTime:
return decimals, decimals, true
case fieldTypeFloat, fieldTypeDouble:
if decimals == 0x1f {
return math.MaxInt64, math.MaxInt64, true
}
return math.MaxInt64, decimals, true
}
return 0, 0, false
}
func (rows *mysqlRows) ColumnTypeScanType(i int) reflect.Type {
return rows.rs.columns[i].scanType()
}
func (rows *mysqlRows) Close() (err error) {
if f := rows.finish; f != nil {
f()
rows.finish = nil
}
mc := rows.mc
if mc == nil {
return nil
}
if err := mc.error(); err != nil {
return err
}
// flip the buffer for this connection if we need to drain it.
// note that for a successful query (i.e. one where rows.next()
// has been called until it returns false), `rows.mc` will be nil
// by the time the user calls `(*Rows).Close`, so we won't reach this
// see: https://github.com/golang/go/commit/651ddbdb5056ded455f47f9c494c67b389622a47
mc.buf.flip()
// Remove unread packets from stream
if !rows.rs.done {
err = mc.readUntilEOF()
}
if err == nil {
handleOk := mc.clearResult()
if err = handleOk.discardResults(); err != nil {
return err
}
}
rows.mc = nil
return err
}
func (rows *mysqlRows) HasNextResultSet() (b bool) {
if rows.mc == nil {
return false
}
return rows.mc.status&statusMoreResultsExists != 0
}
func (rows *mysqlRows) nextResultSet() (int, error) {
if rows.mc == nil {
return 0, io.EOF
}
if err := rows.mc.error(); err != nil {
return 0, err
}
// Remove unread packets from stream
if !rows.rs.done {
if err := rows.mc.readUntilEOF(); err != nil {
return 0, err
}
rows.rs.done = true
}
if !rows.HasNextResultSet() {
rows.mc = nil
return 0, io.EOF
}
rows.rs = resultSet{}
// rows.mc.affectedRows and rows.mc.insertIds accumulate on each call to
// nextResultSet.
resLen, err := rows.mc.resultUnchanged().readResultSetHeaderPacket()
if err != nil {
// Clean up about multi-results flag
rows.rs.done = true
rows.mc.status = rows.mc.status & (^statusMoreResultsExists)
}
return resLen, err
}
func (rows *mysqlRows) nextNotEmptyResultSet() (int, error) {
for {
resLen, err := rows.nextResultSet()
if err != nil {
return 0, err
}
if resLen > 0 {
return resLen, nil
}
rows.rs.done = true
}
}
func (rows *binaryRows) NextResultSet() error {
resLen, err := rows.nextNotEmptyResultSet()
if err != nil {
return err
}
rows.rs.columns, err = rows.mc.readColumns(resLen)
return err
}
func (rows *binaryRows) Next(dest []driver.Value) error {
if mc := rows.mc; mc != nil {
if err := mc.error(); err != nil {
return err
}
// Fetch next row from stream
return rows.readRow(dest)
}
return io.EOF
}
func (rows *textRows) NextResultSet() (err error) {
resLen, err := rows.nextNotEmptyResultSet()
if err != nil {
return err
}
rows.rs.columns, err = rows.mc.readColumns(resLen)
return err
}
func (rows *textRows) Next(dest []driver.Value) error {
if mc := rows.mc; mc != nil {
if err := mc.error(); err != nil {
return err
}
// Fetch next row from stream
return rows.readRow(dest)
}
return io.EOF
}

217
vendor/github.com/go-sql-driver/mysql/statement.go generated vendored
View File

@ -1,217 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"database/sql/driver"
"encoding/json"
"fmt"
"io"
"reflect"
)
type mysqlStmt struct {
mc *mysqlConn
id uint32
paramCount int
}
func (stmt *mysqlStmt) Close() error {
if stmt.mc == nil || stmt.mc.closed.Load() {
// driver.Stmt.Close can be called more than once, thus this function
// has to be idempotent.
// See also Issue #450 and golang/go#16019.
//errLog.Print(ErrInvalidConn)
return driver.ErrBadConn
}
err := stmt.mc.writeCommandPacketUint32(comStmtClose, stmt.id)
stmt.mc = nil
return err
}
func (stmt *mysqlStmt) NumInput() int {
return stmt.paramCount
}
func (stmt *mysqlStmt) ColumnConverter(idx int) driver.ValueConverter {
return converter{}
}
func (stmt *mysqlStmt) CheckNamedValue(nv *driver.NamedValue) (err error) {
nv.Value, err = converter{}.ConvertValue(nv.Value)
return
}
func (stmt *mysqlStmt) Exec(args []driver.Value) (driver.Result, error) {
if stmt.mc.closed.Load() {
stmt.mc.log(ErrInvalidConn)
return nil, driver.ErrBadConn
}
// Send command
err := stmt.writeExecutePacket(args)
if err != nil {
return nil, stmt.mc.markBadConn(err)
}
mc := stmt.mc
handleOk := stmt.mc.clearResult()
// Read Result
resLen, err := handleOk.readResultSetHeaderPacket()
if err != nil {
return nil, err
}
if resLen > 0 {
// Columns
if err = mc.readUntilEOF(); err != nil {
return nil, err
}
// Rows
if err := mc.readUntilEOF(); err != nil {
return nil, err
}
}
if err := handleOk.discardResults(); err != nil {
return nil, err
}
copied := mc.result
return &copied, nil
}
func (stmt *mysqlStmt) Query(args []driver.Value) (driver.Rows, error) {
return stmt.query(args)
}
func (stmt *mysqlStmt) query(args []driver.Value) (*binaryRows, error) {
if stmt.mc.closed.Load() {
stmt.mc.log(ErrInvalidConn)
return nil, driver.ErrBadConn
}
// Send command
err := stmt.writeExecutePacket(args)
if err != nil {
return nil, stmt.mc.markBadConn(err)
}
mc := stmt.mc
// Read Result
handleOk := stmt.mc.clearResult()
resLen, err := handleOk.readResultSetHeaderPacket()
if err != nil {
return nil, err
}
rows := new(binaryRows)
if resLen > 0 {
rows.mc = mc
rows.rs.columns, err = mc.readColumns(resLen)
} else {
rows.rs.done = true
switch err := rows.NextResultSet(); err {
case nil, io.EOF:
return rows, nil
default:
return nil, err
}
}
return rows, err
}
var jsonType = reflect.TypeOf(json.RawMessage{})
type converter struct{}
// ConvertValue mirrors the reference/default converter in database/sql/driver
// with _one_ exception. We support uint64 with their high bit and the default
// implementation does not. This function should be kept in sync with
// database/sql/driver defaultConverter.ConvertValue() except for that
// deliberate difference.
func (c converter) ConvertValue(v any) (driver.Value, error) {
if driver.IsValue(v) {
return v, nil
}
if vr, ok := v.(driver.Valuer); ok {
sv, err := callValuerValue(vr)
if err != nil {
return nil, err
}
if driver.IsValue(sv) {
return sv, nil
}
// A value returned from the Valuer interface can be "a type handled by
// a database driver's NamedValueChecker interface" so we should accept
// uint64 here as well.
if u, ok := sv.(uint64); ok {
return u, nil
}
return nil, fmt.Errorf("non-Value type %T returned from Value", sv)
}
rv := reflect.ValueOf(v)
switch rv.Kind() {
case reflect.Ptr:
// indirect pointers
if rv.IsNil() {
return nil, nil
} else {
return c.ConvertValue(rv.Elem().Interface())
}
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return rv.Int(), nil
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return rv.Uint(), nil
case reflect.Float32, reflect.Float64:
return rv.Float(), nil
case reflect.Bool:
return rv.Bool(), nil
case reflect.Slice:
switch t := rv.Type(); {
case t == jsonType:
return v, nil
case t.Elem().Kind() == reflect.Uint8:
return rv.Bytes(), nil
default:
return nil, fmt.Errorf("unsupported type %T, a slice of %s", v, t.Elem().Kind())
}
case reflect.String:
return rv.String(), nil
}
return nil, fmt.Errorf("unsupported type %T, a %s", v, rv.Kind())
}
var valuerReflectType = reflect.TypeOf((*driver.Valuer)(nil)).Elem()
// callValuerValue returns vr.Value(), with one exception:
// If vr.Value is an auto-generated method on a pointer type and the
// pointer is nil, it would panic at runtime in the panicwrap
// method. Treat it like nil instead.
//
// This is so people can implement driver.Value on value types and
// still use nil pointers to those types to mean nil/NULL, just like
// string/*string.
//
// This is an exact copy of the same-named unexported function from the
// database/sql package.
func callValuerValue(vr driver.Valuer) (v driver.Value, err error) {
if rv := reflect.ValueOf(vr); rv.Kind() == reflect.Ptr &&
rv.IsNil() &&
rv.Type().Elem().Implements(valuerReflectType) {
return nil, nil
}
return vr.Value()
}

31
vendor/github.com/go-sql-driver/mysql/transaction.go generated vendored
View File

@ -1,31 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
type mysqlTx struct {
mc *mysqlConn
}
func (tx *mysqlTx) Commit() (err error) {
if tx.mc == nil || tx.mc.closed.Load() {
return ErrInvalidConn
}
err = tx.mc.exec("COMMIT")
tx.mc = nil
return
}
func (tx *mysqlTx) Rollback() (err error) {
if tx.mc == nil || tx.mc.closed.Load() {
return ErrInvalidConn
}
err = tx.mc.exec("ROLLBACK")
tx.mc = nil
return
}

843
vendor/github.com/go-sql-driver/mysql/utils.go generated vendored
View File

@ -1,843 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"crypto/tls"
"database/sql"
"database/sql/driver"
"encoding/binary"
"errors"
"fmt"
"io"
"strconv"
"strings"
"sync"
"sync/atomic"
"time"
)
// Registry for custom tls.Configs
var (
tlsConfigLock sync.RWMutex
tlsConfigRegistry map[string]*tls.Config
)
// RegisterTLSConfig registers a custom tls.Config to be used with sql.Open.
// Use the key as a value in the DSN where tls=value.
//
// Note: The provided tls.Config is exclusively owned by the driver after
// registering it.
//
// rootCertPool := x509.NewCertPool()
// pem, err := os.ReadFile("/path/ca-cert.pem")
// if err != nil {
// log.Fatal(err)
// }
// if ok := rootCertPool.AppendCertsFromPEM(pem); !ok {
// log.Fatal("Failed to append PEM.")
// }
// clientCert := make([]tls.Certificate, 0, 1)
// certs, err := tls.LoadX509KeyPair("/path/client-cert.pem", "/path/client-key.pem")
// if err != nil {
// log.Fatal(err)
// }
// clientCert = append(clientCert, certs)
// mysql.RegisterTLSConfig("custom", &tls.Config{
// RootCAs: rootCertPool,
// Certificates: clientCert,
// })
// db, err := sql.Open("mysql", "user@tcp(localhost:3306)/test?tls=custom")
func RegisterTLSConfig(key string, config *tls.Config) error {
if _, isBool := readBool(key); isBool || strings.ToLower(key) == "skip-verify" || strings.ToLower(key) == "preferred" {
return fmt.Errorf("key '%s' is reserved", key)
}
tlsConfigLock.Lock()
if tlsConfigRegistry == nil {
tlsConfigRegistry = make(map[string]*tls.Config)
}
tlsConfigRegistry[key] = config
tlsConfigLock.Unlock()
return nil
}
// DeregisterTLSConfig removes the tls.Config associated with key.
func DeregisterTLSConfig(key string) {
tlsConfigLock.Lock()
if tlsConfigRegistry != nil {
delete(tlsConfigRegistry, key)
}
tlsConfigLock.Unlock()
}
func getTLSConfigClone(key string) (config *tls.Config) {
tlsConfigLock.RLock()
if v, ok := tlsConfigRegistry[key]; ok {
config = v.Clone()
}
tlsConfigLock.RUnlock()
return
}
// Returns the bool value of the input.
// The 2nd return value indicates if the input was a valid bool value
func readBool(input string) (value bool, valid bool) {
switch input {
case "1", "true", "TRUE", "True":
return true, true
case "0", "false", "FALSE", "False":
return false, true
}
// Not a valid bool value
return
}
/******************************************************************************
* Time related utils *
******************************************************************************/
func parseDateTime(b []byte, loc *time.Location) (time.Time, error) {
const base = "0000-00-00 00:00:00.000000"
switch len(b) {
case 10, 19, 21, 22, 23, 24, 25, 26: // up to "YYYY-MM-DD HH:MM:SS.MMMMMM"
if string(b) == base[:len(b)] {
return time.Time{}, nil
}
year, err := parseByteYear(b)
if err != nil {
return time.Time{}, err
}
if b[4] != '-' {
return time.Time{}, fmt.Errorf("bad value for field: `%c`", b[4])
}
m, err := parseByte2Digits(b[5], b[6])
if err != nil {
return time.Time{}, err
}
month := time.Month(m)
if b[7] != '-' {
return time.Time{}, fmt.Errorf("bad value for field: `%c`", b[7])
}
day, err := parseByte2Digits(b[8], b[9])
if err != nil {
return time.Time{}, err
}
if len(b) == 10 {
return time.Date(year, month, day, 0, 0, 0, 0, loc), nil
}
if b[10] != ' ' {
return time.Time{}, fmt.Errorf("bad value for field: `%c`", b[10])
}
hour, err := parseByte2Digits(b[11], b[12])
if err != nil {
return time.Time{}, err
}
if b[13] != ':' {
return time.Time{}, fmt.Errorf("bad value for field: `%c`", b[13])
}
min, err := parseByte2Digits(b[14], b[15])
if err != nil {
return time.Time{}, err
}
if b[16] != ':' {
return time.Time{}, fmt.Errorf("bad value for field: `%c`", b[16])
}
sec, err := parseByte2Digits(b[17], b[18])
if err != nil {
return time.Time{}, err
}
if len(b) == 19 {
return time.Date(year, month, day, hour, min, sec, 0, loc), nil
}
if b[19] != '.' {
return time.Time{}, fmt.Errorf("bad value for field: `%c`", b[19])
}
nsec, err := parseByteNanoSec(b[20:])
if err != nil {
return time.Time{}, err
}
return time.Date(year, month, day, hour, min, sec, nsec, loc), nil
default:
return time.Time{}, fmt.Errorf("invalid time bytes: %s", b)
}
}
func parseByteYear(b []byte) (int, error) {
year, n := 0, 1000
for i := 0; i < 4; i++ {
v, err := bToi(b[i])
if err != nil {
return 0, err
}
year += v * n
n /= 10
}
return year, nil
}
func parseByte2Digits(b1, b2 byte) (int, error) {
d1, err := bToi(b1)
if err != nil {
return 0, err
}
d2, err := bToi(b2)
if err != nil {
return 0, err
}
return d1*10 + d2, nil
}
func parseByteNanoSec(b []byte) (int, error) {
ns, digit := 0, 100000 // max is 6-digits
for i := 0; i < len(b); i++ {
v, err := bToi(b[i])
if err != nil {
return 0, err
}
ns += v * digit
digit /= 10
}
// nanoseconds has 10-digits. (needs to scale digits)
// 10 - 6 = 4, so we have to multiple 1000.
return ns * 1000, nil
}
func bToi(b byte) (int, error) {
if b < '0' || b > '9' {
return 0, errors.New("not [0-9]")
}
return int(b - '0'), nil
}
func parseBinaryDateTime(num uint64, data []byte, loc *time.Location) (driver.Value, error) {
switch num {
case 0:
return time.Time{}, nil
case 4:
return time.Date(
int(binary.LittleEndian.Uint16(data[:2])), // year
time.Month(data[2]), // month
int(data[3]), // day
0, 0, 0, 0,
loc,
), nil
case 7:
return time.Date(
int(binary.LittleEndian.Uint16(data[:2])), // year
time.Month(data[2]), // month
int(data[3]), // day
int(data[4]), // hour
int(data[5]), // minutes
int(data[6]), // seconds
0,
loc,
), nil
case 11:
return time.Date(
int(binary.LittleEndian.Uint16(data[:2])), // year
time.Month(data[2]), // month
int(data[3]), // day
int(data[4]), // hour
int(data[5]), // minutes
int(data[6]), // seconds
int(binary.LittleEndian.Uint32(data[7:11]))*1000, // nanoseconds
loc,
), nil
}
return nil, fmt.Errorf("invalid DATETIME packet length %d", num)
}
func appendDateTime(buf []byte, t time.Time, timeTruncate time.Duration) ([]byte, error) {
if timeTruncate > 0 {
t = t.Truncate(timeTruncate)
}
year, month, day := t.Date()
hour, min, sec := t.Clock()
nsec := t.Nanosecond()
if year < 1 || year > 9999 {
return buf, errors.New("year is not in the range [1, 9999]: " + strconv.Itoa(year)) // use errors.New instead of fmt.Errorf to avoid year escape to heap
}
year100 := year / 100
year1 := year % 100
var localBuf [len("2006-01-02T15:04:05.999999999")]byte // does not escape
localBuf[0], localBuf[1], localBuf[2], localBuf[3] = digits10[year100], digits01[year100], digits10[year1], digits01[year1]
localBuf[4] = '-'
localBuf[5], localBuf[6] = digits10[month], digits01[month]
localBuf[7] = '-'
localBuf[8], localBuf[9] = digits10[day], digits01[day]
if hour == 0 && min == 0 && sec == 0 && nsec == 0 {
return append(buf, localBuf[:10]...), nil
}
localBuf[10] = ' '
localBuf[11], localBuf[12] = digits10[hour], digits01[hour]
localBuf[13] = ':'
localBuf[14], localBuf[15] = digits10[min], digits01[min]
localBuf[16] = ':'
localBuf[17], localBuf[18] = digits10[sec], digits01[sec]
if nsec == 0 {
return append(buf, localBuf[:19]...), nil
}
nsec100000000 := nsec / 100000000
nsec1000000 := (nsec / 1000000) % 100
nsec10000 := (nsec / 10000) % 100
nsec100 := (nsec / 100) % 100
nsec1 := nsec % 100
localBuf[19] = '.'
// milli second
localBuf[20], localBuf[21], localBuf[22] =
digits01[nsec100000000], digits10[nsec1000000], digits01[nsec1000000]
// micro second
localBuf[23], localBuf[24], localBuf[25] =
digits10[nsec10000], digits01[nsec10000], digits10[nsec100]
// nano second
localBuf[26], localBuf[27], localBuf[28] =
digits01[nsec100], digits10[nsec1], digits01[nsec1]
// trim trailing zeros
n := len(localBuf)
for n > 0 && localBuf[n-1] == '0' {
n--
}
return append(buf, localBuf[:n]...), nil
}
// zeroDateTime is used in formatBinaryDateTime to avoid an allocation
// if the DATE or DATETIME has the zero value.
// It must never be changed.
// The current behavior depends on database/sql copying the result.
var zeroDateTime = []byte("0000-00-00 00:00:00.000000")
const digits01 = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789"
const digits10 = "0000000000111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999"
func appendMicrosecs(dst, src []byte, decimals int) []byte {
if decimals <= 0 {
return dst
}
if len(src) == 0 {
return append(dst, ".000000"[:decimals+1]...)
}
microsecs := binary.LittleEndian.Uint32(src[:4])
p1 := byte(microsecs / 10000)
microsecs -= 10000 * uint32(p1)
p2 := byte(microsecs / 100)
microsecs -= 100 * uint32(p2)
p3 := byte(microsecs)
switch decimals {
default:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
digits10[p3], digits01[p3],
)
case 1:
return append(dst, '.',
digits10[p1],
)
case 2:
return append(dst, '.',
digits10[p1], digits01[p1],
)
case 3:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2],
)
case 4:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
)
case 5:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
digits10[p3],
)
}
}
func formatBinaryDateTime(src []byte, length uint8) (driver.Value, error) {
// length expects the deterministic length of the zero value,
// negative time and 100+ hours are automatically added if needed
if len(src) == 0 {
return zeroDateTime[:length], nil
}
var dst []byte // return value
var p1, p2, p3 byte // current digit pair
switch length {
case 10, 19, 21, 22, 23, 24, 25, 26:
default:
t := "DATE"
if length > 10 {
t += "TIME"
}
return nil, fmt.Errorf("illegal %s length %d", t, length)
}
switch len(src) {
case 4, 7, 11:
default:
t := "DATE"
if length > 10 {
t += "TIME"
}
return nil, fmt.Errorf("illegal %s packet length %d", t, len(src))
}
dst = make([]byte, 0, length)
// start with the date
year := binary.LittleEndian.Uint16(src[:2])
pt := year / 100
p1 = byte(year - 100*uint16(pt))
p2, p3 = src[2], src[3]
dst = append(dst,
digits10[pt], digits01[pt],
digits10[p1], digits01[p1], '-',
digits10[p2], digits01[p2], '-',
digits10[p3], digits01[p3],
)
if length == 10 {
return dst, nil
}
if len(src) == 4 {
return append(dst, zeroDateTime[10:length]...), nil
}
dst = append(dst, ' ')
p1 = src[4] // hour
src = src[5:]
// p1 is 2-digit hour, src is after hour
p2, p3 = src[0], src[1]
dst = append(dst,
digits10[p1], digits01[p1], ':',
digits10[p2], digits01[p2], ':',
digits10[p3], digits01[p3],
)
return appendMicrosecs(dst, src[2:], int(length)-20), nil
}
func formatBinaryTime(src []byte, length uint8) (driver.Value, error) {
// length expects the deterministic length of the zero value,
// negative time and 100+ hours are automatically added if needed
if len(src) == 0 {
return zeroDateTime[11 : 11+length], nil
}
var dst []byte // return value
switch length {
case
8, // time (can be up to 10 when negative and 100+ hours)
10, 11, 12, 13, 14, 15: // time with fractional seconds
default:
return nil, fmt.Errorf("illegal TIME length %d", length)
}
switch len(src) {
case 8, 12:
default:
return nil, fmt.Errorf("invalid TIME packet length %d", len(src))
}
// +2 to enable negative time and 100+ hours
dst = make([]byte, 0, length+2)
if src[0] == 1 {
dst = append(dst, '-')
}
days := binary.LittleEndian.Uint32(src[1:5])
hours := int64(days)*24 + int64(src[5])
if hours >= 100 {
dst = strconv.AppendInt(dst, hours, 10)
} else {
dst = append(dst, digits10[hours], digits01[hours])
}
min, sec := src[6], src[7]
dst = append(dst, ':',
digits10[min], digits01[min], ':',
digits10[sec], digits01[sec],
)
return appendMicrosecs(dst, src[8:], int(length)-9), nil
}
/******************************************************************************
* Convert from and to bytes *
******************************************************************************/
func uint64ToBytes(n uint64) []byte {
return []byte{
byte(n),
byte(n >> 8),
byte(n >> 16),
byte(n >> 24),
byte(n >> 32),
byte(n >> 40),
byte(n >> 48),
byte(n >> 56),
}
}
func uint64ToString(n uint64) []byte {
var a [20]byte
i := 20
// U+0030 = 0
// ...
// U+0039 = 9
var q uint64
for n >= 10 {
i--
q = n / 10
a[i] = uint8(n-q*10) + 0x30
n = q
}
i--
a[i] = uint8(n) + 0x30
return a[i:]
}
// treats string value as unsigned integer representation
func stringToInt(b []byte) int {
val := 0
for i := range b {
val *= 10
val += int(b[i] - 0x30)
}
return val
}
// returns the string read as a bytes slice, whether the value is NULL,
// the number of bytes read and an error, in case the string is longer than
// the input slice
func readLengthEncodedString(b []byte) ([]byte, bool, int, error) {
// Get length
num, isNull, n := readLengthEncodedInteger(b)
if num < 1 {
return b[n:n], isNull, n, nil
}
n += int(num)
// Check data length
if len(b) >= n {
return b[n-int(num) : n : n], false, n, nil
}
return nil, false, n, io.EOF
}
// returns the number of bytes skipped and an error, in case the string is
// longer than the input slice
func skipLengthEncodedString(b []byte) (int, error) {
// Get length
num, _, n := readLengthEncodedInteger(b)
if num < 1 {
return n, nil
}
n += int(num)
// Check data length
if len(b) >= n {
return n, nil
}
return n, io.EOF
}
// returns the number read, whether the value is NULL and the number of bytes read
func readLengthEncodedInteger(b []byte) (uint64, bool, int) {
// See issue #349
if len(b) == 0 {
return 0, true, 1
}
switch b[0] {
// 251: NULL
case 0xfb:
return 0, true, 1
// 252: value of following 2
case 0xfc:
return uint64(b[1]) | uint64(b[2])<<8, false, 3
// 253: value of following 3
case 0xfd:
return uint64(b[1]) | uint64(b[2])<<8 | uint64(b[3])<<16, false, 4
// 254: value of following 8
case 0xfe:
return uint64(b[1]) | uint64(b[2])<<8 | uint64(b[3])<<16 |
uint64(b[4])<<24 | uint64(b[5])<<32 | uint64(b[6])<<40 |
uint64(b[7])<<48 | uint64(b[8])<<56,
false, 9
}
// 0-250: value of first byte
return uint64(b[0]), false, 1
}
// encodes a uint64 value and appends it to the given bytes slice
func appendLengthEncodedInteger(b []byte, n uint64) []byte {
switch {
case n <= 250:
return append(b, byte(n))
case n <= 0xffff:
return append(b, 0xfc, byte(n), byte(n>>8))
case n <= 0xffffff:
return append(b, 0xfd, byte(n), byte(n>>8), byte(n>>16))
}
return append(b, 0xfe, byte(n), byte(n>>8), byte(n>>16), byte(n>>24),
byte(n>>32), byte(n>>40), byte(n>>48), byte(n>>56))
}
func appendLengthEncodedString(b []byte, s string) []byte {
b = appendLengthEncodedInteger(b, uint64(len(s)))
return append(b, s...)
}
// reserveBuffer checks cap(buf) and expand buffer to len(buf) + appendSize.
// If cap(buf) is not enough, reallocate new buffer.
func reserveBuffer(buf []byte, appendSize int) []byte {
newSize := len(buf) + appendSize
if cap(buf) < newSize {
// Grow buffer exponentially
newBuf := make([]byte, len(buf)*2+appendSize)
copy(newBuf, buf)
buf = newBuf
}
return buf[:newSize]
}
// escapeBytesBackslash escapes []byte with backslashes (\)
// This escapes the contents of a string (provided as []byte) by adding backslashes before special
// characters, and turning others into specific escape sequences, such as
// turning newlines into \n and null bytes into \0.
// https://github.com/mysql/mysql-server/blob/mysql-5.7.5/mysys/charset.c#L823-L932
func escapeBytesBackslash(buf, v []byte) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for _, c := range v {
switch c {
case '\x00':
buf[pos+1] = '0'
buf[pos] = '\\'
pos += 2
case '\n':
buf[pos+1] = 'n'
buf[pos] = '\\'
pos += 2
case '\r':
buf[pos+1] = 'r'
buf[pos] = '\\'
pos += 2
case '\x1a':
buf[pos+1] = 'Z'
buf[pos] = '\\'
pos += 2
case '\'':
buf[pos+1] = '\''
buf[pos] = '\\'
pos += 2
case '"':
buf[pos+1] = '"'
buf[pos] = '\\'
pos += 2
case '\\':
buf[pos+1] = '\\'
buf[pos] = '\\'
pos += 2
default:
buf[pos] = c
pos++
}
}
return buf[:pos]
}
// escapeStringBackslash is similar to escapeBytesBackslash but for string.
func escapeStringBackslash(buf []byte, v string) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for i := 0; i < len(v); i++ {
c := v[i]
switch c {
case '\x00':
buf[pos+1] = '0'
buf[pos] = '\\'
pos += 2
case '\n':
buf[pos+1] = 'n'
buf[pos] = '\\'
pos += 2
case '\r':
buf[pos+1] = 'r'
buf[pos] = '\\'
pos += 2
case '\x1a':
buf[pos+1] = 'Z'
buf[pos] = '\\'
pos += 2
case '\'':
buf[pos+1] = '\''
buf[pos] = '\\'
pos += 2
case '"':
buf[pos+1] = '"'
buf[pos] = '\\'
pos += 2
case '\\':
buf[pos+1] = '\\'
buf[pos] = '\\'
pos += 2
default:
buf[pos] = c
pos++
}
}
return buf[:pos]
}
// escapeBytesQuotes escapes apostrophes in []byte by doubling them up.
// This escapes the contents of a string by doubling up any apostrophes that
// it contains. This is used when the NO_BACKSLASH_ESCAPES SQL_MODE is in
// effect on the server.
// https://github.com/mysql/mysql-server/blob/mysql-5.7.5/mysys/charset.c#L963-L1038
func escapeBytesQuotes(buf, v []byte) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for _, c := range v {
if c == '\'' {
buf[pos+1] = '\''
buf[pos] = '\''
pos += 2
} else {
buf[pos] = c
pos++
}
}
return buf[:pos]
}
// escapeStringQuotes is similar to escapeBytesQuotes but for string.
func escapeStringQuotes(buf []byte, v string) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for i := 0; i < len(v); i++ {
c := v[i]
if c == '\'' {
buf[pos+1] = '\''
buf[pos] = '\''
pos += 2
} else {
buf[pos] = c
pos++
}
}
return buf[:pos]
}
/******************************************************************************
* Sync utils *
******************************************************************************/
// noCopy may be embedded into structs which must not be copied
// after the first use.
//
// See https://github.com/golang/go/issues/8005#issuecomment-190753527
// for details.
type noCopy struct{}
// Lock is a no-op used by -copylocks checker from `go vet`.
func (*noCopy) Lock() {}
// Unlock is a no-op used by -copylocks checker from `go vet`.
// noCopy should implement sync.Locker from Go 1.11
// https://github.com/golang/go/commit/c2eba53e7f80df21d51285879d51ab81bcfbf6bc
// https://github.com/golang/go/issues/26165
func (*noCopy) Unlock() {}
// atomicError is a wrapper for atomically accessed error values
type atomicError struct {
_ noCopy
value atomic.Value
}
// Set sets the error value regardless of the previous value.
// The value must not be nil
func (ae *atomicError) Set(value error) {
ae.value.Store(value)
}
// Value returns the current error value
func (ae *atomicError) Value() error {
if v := ae.value.Load(); v != nil {
// this will panic if the value doesn't implement the error interface
return v.(error)
}
return nil
}
func namedValueToValue(named []driver.NamedValue) ([]driver.Value, error) {
dargs := make([]driver.Value, len(named))
for n, param := range named {
if len(param.Name) > 0 {
// TODO: support the use of Named Parameters #561
return nil, errors.New("mysql: driver does not support the use of Named Parameters")
}
dargs[n] = param.Value
}
return dargs, nil
}
func mapIsolationLevel(level driver.IsolationLevel) (string, error) {
switch sql.IsolationLevel(level) {
case sql.LevelRepeatableRead:
return "REPEATABLE READ", nil
case sql.LevelReadCommitted:
return "READ COMMITTED", nil
case sql.LevelReadUncommitted:
return "READ UNCOMMITTED", nil
case sql.LevelSerializable:
return "SERIALIZABLE", nil
default:
return "", fmt.Errorf("mysql: unsupported isolation level: %v", level)
}
}

3
vendor/github.com/goccy/go-json/.golangci.yml generated vendored
View File

@ -56,9 +56,6 @@ linters:
- cyclop
- containedctx
- revive
- nosnakecase
- exhaustruct
- depguard
issues:
exclude-rules:

2
vendor/github.com/goccy/go-json/Makefile generated vendored
View File

@ -30,7 +30,7 @@ golangci-lint: | $(BIN_DIR)
GOLANGCI_LINT_TMP_DIR=$$(mktemp -d); \
cd $$GOLANGCI_LINT_TMP_DIR; \
go mod init tmp; \
GOBIN=$(BIN_DIR) go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.54.2; \
GOBIN=$(BIN_DIR) go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.48.0; \
rm -rf $$GOLANGCI_LINT_TMP_DIR; \
}

4
vendor/github.com/goccy/go-json/encode.go generated vendored
View File

@ -52,7 +52,7 @@ func (e *Encoder) EncodeContext(ctx context.Context, v interface{}, optFuncs ...
rctx.Option.Flag |= encoder.ContextOption
rctx.Option.Context = ctx
err := e.encodeWithOption(rctx, v, optFuncs...) //nolint: contextcheck
err := e.encodeWithOption(rctx, v, optFuncs...)
encoder.ReleaseRuntimeContext(rctx)
return err
@ -120,7 +120,7 @@ func marshalContext(ctx context.Context, v interface{}, optFuncs ...EncodeOption
optFunc(rctx.Option)
}
buf, err := encode(rctx, v) //nolint: contextcheck
buf, err := encode(rctx, v)
if err != nil {
encoder.ReleaseRuntimeContext(rctx)
return nil, err

1
vendor/github.com/goccy/go-json/internal/decoder/ptr.go generated vendored
View File

@ -85,7 +85,6 @@ func (d *ptrDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.P
}
c, err := d.dec.Decode(ctx, cursor, depth, newptr)
if err != nil {
*(*unsafe.Pointer)(p) = nil
return 0, err
}
cursor = c

2
vendor/github.com/goccy/go-json/internal/decoder/unmarshal_text.go generated vendored
View File

@ -147,7 +147,7 @@ func (d *unmarshalTextDecoder) DecodePath(ctx *RuntimeContext, cursor, depth int
return nil, 0, fmt.Errorf("json: unmarshal text decoder does not support decode path")
}
func unquoteBytes(s []byte) (t []byte, ok bool) { //nolint: nonamedreturns
func unquoteBytes(s []byte) (t []byte, ok bool) {
length := len(s)
if length < 2 || s[0] != '"' || s[length-1] != '"' {
return

2
vendor/github.com/goccy/go-json/internal/encoder/compact.go generated vendored
View File

@ -213,8 +213,8 @@ func compactString(dst, src []byte, cursor int64, escape bool) ([]byte, int64, e
dst = append(dst, src[start:cursor]...)
dst = append(dst, `\u202`...)
dst = append(dst, hex[src[cursor+2]&0xF])
start = cursor + 3
cursor += 2
start = cursor + 3
}
}
switch c {

2
vendor/github.com/goccy/go-json/internal/encoder/compiler.go generated vendored
View File

@ -480,7 +480,7 @@ func (c *Compiler) mapCode(typ *runtime.Type) (*MapCode, error) {
func (c *Compiler) listElemCode(typ *runtime.Type) (Code, error) {
switch {
case c.implementsMarshalJSONType(typ) || c.implementsMarshalJSONType(runtime.PtrTo(typ)):
case c.isPtrMarshalJSONType(typ):
return c.marshalJSONCode(typ)
case !typ.Implements(marshalTextType) && runtime.PtrTo(typ).Implements(marshalTextType):
return c.marshalTextCode(typ)

24
vendor/github.com/goccy/go-json/internal/encoder/int.go generated vendored
View File

@ -1,27 +1,3 @@
// This files's processing codes are inspired by https://github.com/segmentio/encoding.
// The license notation is as follows.
//
// # MIT License
//
// Copyright (c) 2019 Segment.io, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package encoder
import (

24
vendor/github.com/goccy/go-json/internal/encoder/string.go generated vendored
View File

@ -1,27 +1,3 @@
// This files's string processing codes are inspired by https://github.com/segmentio/encoding.
// The license notation is as follows.
//
// # MIT License
//
// Copyright (c) 2019 Segment.io, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package encoder
import (

1
vendor/github.com/goccy/go-json/internal/runtime/rtype.go generated vendored
View File

@ -252,6 +252,7 @@ func IfaceIndir(*Type) bool
//go:noescape
func RType2Type(t *Type) reflect.Type
//go:nolint structcheck
type emptyInterface struct {
_ *Type
ptr unsafe.Pointer

5
vendor/github.com/goccy/go-json/json.go generated vendored
View File

@ -166,6 +166,7 @@ type UnmarshalerContext interface {
// JSON cannot represent cyclic data structures and Marshal does not
// handle them. Passing cyclic structures to Marshal will result in
// an infinite recursion.
//
func Marshal(v interface{}) ([]byte, error) {
return MarshalWithOption(v)
}
@ -263,13 +264,14 @@ func MarshalIndentWithOption(v interface{}, prefix, indent string, optFuncs ...E
//
// The JSON null value unmarshals into an interface, map, pointer, or slice
// by setting that Go value to nil. Because null is often used in JSON to mean
// “not present,” unmarshaling a JSON null into any other Go type has no effect
// ``not present,'' unmarshaling a JSON null into any other Go type has no effect
// on the value and produces no error.
//
// When unmarshaling quoted strings, invalid UTF-8 or
// invalid UTF-16 surrogate pairs are not treated as an error.
// Instead, they are replaced by the Unicode replacement
// character U+FFFD.
//
func Unmarshal(data []byte, v interface{}) error {
return unmarshal(data, v)
}
@ -297,6 +299,7 @@ func UnmarshalNoEscape(data []byte, v interface{}, optFuncs ...DecodeOptionFunc)
// Number, for JSON numbers
// string, for JSON string literals
// nil, for JSON null
//
type Token = json.Token
// A Number represents a JSON number literal.

4
vendor/github.com/mattn/go-sqlite3/.codecov.yml generated vendored
View File

@ -1,4 +0,0 @@
coverage:
status:
project: off
patch: off

14
vendor/github.com/mattn/go-sqlite3/.gitignore generated vendored
View File

@ -1,14 +0,0 @@
*.db
*.exe
*.dll
*.o
# VSCode
.vscode
# Exclude from upgrade
upgrade/*.c
upgrade/*.h
# Exclude upgrade binary
upgrade/upgrade

21
vendor/github.com/mattn/go-sqlite3/LICENSE generated vendored
View File

@ -1,21 +0,0 @@
The MIT License (MIT)
Copyright (c) 2014 Yasuhiro Matsumoto
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

603
vendor/github.com/mattn/go-sqlite3/README.md generated vendored
View File

@ -1,603 +0,0 @@
go-sqlite3
==========
[![Go Reference](https://pkg.go.dev/badge/github.com/mattn/go-sqlite3.svg)](https://pkg.go.dev/github.com/mattn/go-sqlite3)
[![GitHub Actions](https://github.com/mattn/go-sqlite3/workflows/Go/badge.svg)](https://github.com/mattn/go-sqlite3/actions?query=workflow%3AGo)
[![Financial Contributors on Open Collective](https://opencollective.com/mattn-go-sqlite3/all/badge.svg?label=financial+contributors)](https://opencollective.com/mattn-go-sqlite3)
[![codecov](https://codecov.io/gh/mattn/go-sqlite3/branch/master/graph/badge.svg)](https://codecov.io/gh/mattn/go-sqlite3)
[![Go Report Card](https://goreportcard.com/badge/github.com/mattn/go-sqlite3)](https://goreportcard.com/report/github.com/mattn/go-sqlite3)
Latest stable version is v1.14 or later, not v2.
~~**NOTE:** The increase to v2 was an accident. There were no major changes or features.~~
# Description
A sqlite3 driver that conforms to the built-in database/sql interface.
Supported Golang version: See [.github/workflows/go.yaml](./.github/workflows/go.yaml).
This package follows the official [Golang Release Policy](https://golang.org/doc/devel/release.html#policy).
### Overview
- [go-sqlite3](#go-sqlite3)
- [Description](#description)
- [Overview](#overview)
- [Installation](#installation)
- [API Reference](#api-reference)
- [Connection String](#connection-string)
- [DSN Examples](#dsn-examples)
- [Features](#features)
- [Usage](#usage)
- [Feature / Extension List](#feature--extension-list)
- [Compilation](#compilation)
- [Android](#android)
- [ARM](#arm)
- [Cross Compile](#cross-compile)
- [Google Cloud Platform](#google-cloud-platform)
- [Linux](#linux)
- [Alpine](#alpine)
- [Fedora](#fedora)
- [Ubuntu](#ubuntu)
- [macOS](#mac-osx)
- [Windows](#windows)
- [Errors](#errors)
- [User Authentication](#user-authentication)
- [Compile](#compile)
- [Usage](#usage-1)
- [Create protected database](#create-protected-database)
- [Password Encoding](#password-encoding)
- [Available Encoders](#available-encoders)
- [Restrictions](#restrictions)
- [Support](#support)
- [User Management](#user-management)
- [SQL](#sql)
- [Examples](#examples)
- [*SQLiteConn](#sqliteconn)
- [Attached database](#attached-database)
- [Extensions](#extensions)
- [Spatialite](#spatialite)
- [FAQ](#faq)
- [License](#license)
- [Author](#author)
# Installation
This package can be installed with the `go get` command:
go get github.com/mattn/go-sqlite3
_go-sqlite3_ is *cgo* package.
If you want to build your app using go-sqlite3, you need gcc.
However, after you have built and installed _go-sqlite3_ with `go install github.com/mattn/go-sqlite3` (which requires gcc), you can build your app without relying on gcc in future.
***Important: because this is a `CGO` enabled package, you are required to set the environment variable `CGO_ENABLED=1` and have a `gcc` compiler present within your path.***
# API Reference
API documentation can be found [here](http://godoc.org/github.com/mattn/go-sqlite3).
Examples can be found under the [examples](./_example) directory.
# Connection String
When creating a new SQLite database or connection to an existing one, with the file name additional options can be given.
This is also known as a DSN (Data Source Name) string.
Options are append after the filename of the SQLite database.
The database filename and options are separated by an `?` (Question Mark).
Options should be URL-encoded (see [url.QueryEscape](https://golang.org/pkg/net/url/#QueryEscape)).
This also applies when using an in-memory database instead of a file.
Options can be given using the following format: `KEYWORD=VALUE` and multiple options can be combined with the `&` ampersand.
This library supports DSN options of SQLite itself and provides additional options.
Boolean values can be one of:
* `0` `no` `false` `off`
* `1` `yes` `true` `on`
| Name | Key | Value(s) | Description |
|------|-----|----------|-------------|
| UA - Create | `_auth` | - | Create User Authentication, for more information see [User Authentication](#user-authentication) |
| UA - Username | `_auth_user` | `string` | Username for User Authentication, for more information see [User Authentication](#user-authentication) |
| UA - Password | `_auth_pass` | `string` | Password for User Authentication, for more information see [User Authentication](#user-authentication) |
| UA - Crypt | `_auth_crypt` | <ul><li>SHA1</li><li>SSHA1</li><li>SHA256</li><li>SSHA256</li><li>SHA384</li><li>SSHA384</li><li>SHA512</li><li>SSHA512</li></ul> | Password encoder to use for User Authentication, for more information see [User Authentication](#user-authentication) |
| UA - Salt | `_auth_salt` | `string` | Salt to use if the configure password encoder requires a salt, for User Authentication, for more information see [User Authentication](#user-authentication) |
| Auto Vacuum | `_auto_vacuum` \| `_vacuum` | <ul><li>`0` \| `none`</li><li>`1` \| `full`</li><li>`2` \| `incremental`</li></ul> | For more information see [PRAGMA auto_vacuum](https://www.sqlite.org/pragma.html#pragma_auto_vacuum) |
| Busy Timeout | `_busy_timeout` \| `_timeout` | `int` | Specify value for sqlite3_busy_timeout. For more information see [PRAGMA busy_timeout](https://www.sqlite.org/pragma.html#pragma_busy_timeout) |
| Case Sensitive LIKE | `_case_sensitive_like` \| `_cslike` | `boolean` | For more information see [PRAGMA case_sensitive_like](https://www.sqlite.org/pragma.html#pragma_case_sensitive_like) |
| Defer Foreign Keys | `_defer_foreign_keys` \| `_defer_fk` | `boolean` | For more information see [PRAGMA defer_foreign_keys](https://www.sqlite.org/pragma.html#pragma_defer_foreign_keys) |
| Foreign Keys | `_foreign_keys` \| `_fk` | `boolean` | For more information see [PRAGMA foreign_keys](https://www.sqlite.org/pragma.html#pragma_foreign_keys) |
| Ignore CHECK Constraints | `_ignore_check_constraints` | `boolean` | For more information see [PRAGMA ignore_check_constraints](https://www.sqlite.org/pragma.html#pragma_ignore_check_constraints) |
| Immutable | `immutable` | `boolean` | For more information see [Immutable](https://www.sqlite.org/c3ref/open.html) |
| Journal Mode | `_journal_mode` \| `_journal` | <ul><li>DELETE</li><li>TRUNCATE</li><li>PERSIST</li><li>MEMORY</li><li>WAL</li><li>OFF</li></ul> | For more information see [PRAGMA journal_mode](https://www.sqlite.org/pragma.html#pragma_journal_mode) |
| Locking Mode | `_locking_mode` \| `_locking` | <ul><li>NORMAL</li><li>EXCLUSIVE</li></ul> | For more information see [PRAGMA locking_mode](https://www.sqlite.org/pragma.html#pragma_locking_mode) |
| Mode | `mode` | <ul><li>ro</li><li>rw</li><li>rwc</li><li>memory</li></ul> | Access Mode of the database. For more information see [SQLite Open](https://www.sqlite.org/c3ref/open.html) |
| Mutex Locking | `_mutex` | <ul><li>no</li><li>full</li></ul> | Specify mutex mode. |
| Query Only | `_query_only` | `boolean` | For more information see [PRAGMA query_only](https://www.sqlite.org/pragma.html#pragma_query_only) |
| Recursive Triggers | `_recursive_triggers` \| `_rt` | `boolean` | For more information see [PRAGMA recursive_triggers](https://www.sqlite.org/pragma.html#pragma_recursive_triggers) |
| Secure Delete | `_secure_delete` | `boolean` \| `FAST` | For more information see [PRAGMA secure_delete](https://www.sqlite.org/pragma.html#pragma_secure_delete) |
| Shared-Cache Mode | `cache` | <ul><li>shared</li><li>private</li></ul> | Set cache mode for more information see [sqlite.org](https://www.sqlite.org/sharedcache.html) |
| Synchronous | `_synchronous` \| `_sync` | <ul><li>0 \| OFF</li><li>1 \| NORMAL</li><li>2 \| FULL</li><li>3 \| EXTRA</li></ul> | For more information see [PRAGMA synchronous](https://www.sqlite.org/pragma.html#pragma_synchronous) |
| Time Zone Location | `_loc` | auto | Specify location of time format. |
| Transaction Lock | `_txlock` | <ul><li>immediate</li><li>deferred</li><li>exclusive</li></ul> | Specify locking behavior for transactions. |
| Writable Schema | `_writable_schema` | `Boolean` | When this pragma is on, the SQLITE_MASTER tables in which database can be changed using ordinary UPDATE, INSERT, and DELETE statements. Warning: misuse of this pragma can easily result in a corrupt database file. |
| Cache Size | `_cache_size` | `int` | Maximum cache size; default is 2000K (2M). See [PRAGMA cache_size](https://sqlite.org/pragma.html#pragma_cache_size) |
## DSN Examples
```
file:test.db?cache=shared&mode=memory
```
# Features
This package allows additional configuration of features available within SQLite3 to be enabled or disabled by golang build constraints also known as build `tags`.
Click [here](https://golang.org/pkg/go/build/#hdr-Build_Constraints) for more information about build tags / constraints.
### Usage
If you wish to build this library with additional extensions / features, use the following command:
```bash
go build -tags "<FEATURE>"
```
For available features, see the extension list.
When using multiple build tags, all the different tags should be space delimited.
Example:
```bash
go build -tags "icu json1 fts5 secure_delete"
```
### Feature / Extension List
| Extension | Build Tag | Description |
|-----------|-----------|-------------|
| Additional Statistics | sqlite_stat4 | This option adds additional logic to the ANALYZE command and to the query planner that can help SQLite to chose a better query plan under certain situations. The ANALYZE command is enhanced to collect histogram data from all columns of every index and store that data in the sqlite_stat4 table.<br><br>The query planner will then use the histogram data to help it make better index choices. The downside of this compile-time option is that it violates the query planner stability guarantee making it more difficult to ensure consistent performance in mass-produced applications.<br><br>SQLITE_ENABLE_STAT4 is an enhancement of SQLITE_ENABLE_STAT3. STAT3 only recorded histogram data for the left-most column of each index whereas the STAT4 enhancement records histogram data from all columns of each index.<br><br>The SQLITE_ENABLE_STAT3 compile-time option is a no-op and is ignored if the SQLITE_ENABLE_STAT4 compile-time option is used |
| Allow URI Authority | sqlite_allow_uri_authority | URI filenames normally throws an error if the authority section is not either empty or "localhost".<br><br>However, if SQLite is compiled with the SQLITE_ALLOW_URI_AUTHORITY compile-time option, then the URI is converted into a Uniform Naming Convention (UNC) filename and passed down to the underlying operating system that way |
| App Armor | sqlite_app_armor | When defined, this C-preprocessor macro activates extra code that attempts to detect misuse of the SQLite API, such as passing in NULL pointers to required parameters or using objects after they have been destroyed. <br><br>App Armor is not available under `Windows`. |
| Disable Load Extensions | sqlite_omit_load_extension | Loading of external extensions is enabled by default.<br><br>To disable extension loading add the build tag `sqlite_omit_load_extension`. |
| Enable Serialization with `libsqlite3` | sqlite_serialize | Serialization and deserialization of a SQLite database is available by default, unless the build tag `libsqlite3` is set.<br><br>To enable this functionality even if `libsqlite3` is set, add the build tag `sqlite_serialize`. |
| Foreign Keys | sqlite_foreign_keys | This macro determines whether enforcement of foreign key constraints is enabled or disabled by default for new database connections.<br><br>Each database connection can always turn enforcement of foreign key constraints on and off and run-time using the foreign_keys pragma.<br><br>Enforcement of foreign key constraints is normally off by default, but if this compile-time parameter is set to 1, enforcement of foreign key constraints will be on by default |
| Full Auto Vacuum | sqlite_vacuum_full | Set the default auto vacuum to full |
| Incremental Auto Vacuum | sqlite_vacuum_incr | Set the default auto vacuum to incremental |
| Full Text Search Engine | sqlite_fts5 | When this option is defined in the amalgamation, versions 5 of the full-text search engine (fts5) is added to the build automatically |
| International Components for Unicode | sqlite_icu | This option causes the International Components for Unicode or "ICU" extension to SQLite to be added to the build |
| Introspect PRAGMAS | sqlite_introspect | This option adds some extra PRAGMA statements. <ul><li>PRAGMA function_list</li><li>PRAGMA module_list</li><li>PRAGMA pragma_list</li></ul> |
| JSON SQL Functions | sqlite_json | When this option is defined in the amalgamation, the JSON SQL functions are added to the build automatically |
| Math Functions | sqlite_math_functions | This compile-time option enables built-in scalar math functions. For more information see [Built-In Mathematical SQL Functions](https://www.sqlite.org/lang_mathfunc.html) |
| OS Trace | sqlite_os_trace | This option enables OSTRACE() debug logging. This can be verbose and should not be used in production. |
| Pre Update Hook | sqlite_preupdate_hook | Registers a callback function that is invoked prior to each INSERT, UPDATE, and DELETE operation on a database table. |
| Secure Delete | sqlite_secure_delete | This compile-time option changes the default setting of the secure_delete pragma.<br><br>When this option is not used, secure_delete defaults to off. When this option is present, secure_delete defaults to on.<br><br>The secure_delete setting causes deleted content to be overwritten with zeros. There is a small performance penalty since additional I/O must occur.<br><br>On the other hand, secure_delete can prevent fragments of sensitive information from lingering in unused parts of the database file after it has been deleted. See the documentation on the secure_delete pragma for additional information |
| Secure Delete (FAST) | sqlite_secure_delete_fast | For more information see [PRAGMA secure_delete](https://www.sqlite.org/pragma.html#pragma_secure_delete) |
| Tracing / Debug | sqlite_trace | Activate trace functions |
| User Authentication | sqlite_userauth | SQLite User Authentication see [User Authentication](#user-authentication) for more information. |
| Virtual Tables | sqlite_vtable | SQLite Virtual Tables see [SQLite Official VTABLE Documentation](https://www.sqlite.org/vtab.html) for more information, and a [full example here](https://github.com/mattn/go-sqlite3/tree/master/_example/vtable) |
# Compilation
This package requires the `CGO_ENABLED=1` environment variable if not set by default, and the presence of the `gcc` compiler.
If you need to add additional CFLAGS or LDFLAGS to the build command, and do not want to modify this package, then this can be achieved by using the `CGO_CFLAGS` and `CGO_LDFLAGS` environment variables.
## Android
This package can be compiled for android.
Compile with:
```bash
go build -tags "android"
```
For more information see [#201](https://github.com/mattn/go-sqlite3/issues/201)
# ARM
To compile for `ARM` use the following environment:
```bash
env CC=arm-linux-gnueabihf-gcc CXX=arm-linux-gnueabihf-g++ \
CGO_ENABLED=1 GOOS=linux GOARCH=arm GOARM=7 \
go build -v
```
Additional information:
- [#242](https://github.com/mattn/go-sqlite3/issues/242)
- [#504](https://github.com/mattn/go-sqlite3/issues/504)
# Cross Compile
This library can be cross-compiled.
In some cases you are required to the `CC` environment variable with the cross compiler.
## Cross Compiling from macOS
The simplest way to cross compile from macOS is to use [xgo](https://github.com/karalabe/xgo).
Steps:
- Install [musl-cross](https://github.com/FiloSottile/homebrew-musl-cross) (`brew install FiloSottile/musl-cross/musl-cross`).
- Run `CC=x86_64-linux-musl-gcc CXX=x86_64-linux-musl-g++ GOARCH=amd64 GOOS=linux CGO_ENABLED=1 go build -ldflags "-linkmode external -extldflags -static"`.
Please refer to the project's [README](https://github.com/FiloSottile/homebrew-musl-cross#readme) for further information.
# Google Cloud Platform
Building on GCP is not possible because Google Cloud Platform does not allow `gcc` to be executed.
Please work only with compiled final binaries.
## Linux
To compile this package on Linux, you must install the development tools for your linux distribution.
To compile under linux use the build tag `linux`.
```bash
go build -tags "linux"
```
If you wish to link directly to libsqlite3 then you can use the `libsqlite3` build tag.
```
go build -tags "libsqlite3 linux"
```
### Alpine
When building in an `alpine` container run the following command before building:
```
apk add --update gcc musl-dev
```
### Fedora
```bash
sudo yum groupinstall "Development Tools" "Development Libraries"
```
### Ubuntu
```bash
sudo apt-get install build-essential
```
## macOS
macOS should have all the tools present to compile this package. If not, install XCode to add all the developers tools.
Required dependency:
```bash
brew install sqlite3
```
For macOS, there is an additional package to install which is required if you wish to build the `icu` extension.
This additional package can be installed with `homebrew`:
```bash
brew upgrade icu4c
```
To compile for macOS on x86:
```bash
go build -tags "darwin amd64"
```
To compile for macOS on ARM chips:
```bash
go build -tags "darwin arm64"
```
If you wish to link directly to libsqlite3, use the `libsqlite3` build tag:
```
# x86
go build -tags "libsqlite3 darwin amd64"
# ARM
go build -tags "libsqlite3 darwin arm64"
```
Additional information:
- [#206](https://github.com/mattn/go-sqlite3/issues/206)
- [#404](https://github.com/mattn/go-sqlite3/issues/404)
## Windows
To compile this package on Windows, you must have the `gcc` compiler installed.
1) Install a Windows `gcc` toolchain.
2) Add the `bin` folder to the Windows path, if the installer did not do this by default.
3) Open a terminal for the TDM-GCC toolchain, which can be found in the Windows Start menu.
4) Navigate to your project folder and run the `go build ...` command for this package.
For example the TDM-GCC Toolchain can be found [here](https://jmeubank.github.io/tdm-gcc/).
## Errors
- Compile error: `can not be used when making a shared object; recompile with -fPIC`
When receiving a compile time error referencing recompile with `-FPIC` then you
are probably using a hardend system.
You can compile the library on a hardend system with the following command.
```bash
go build -ldflags '-extldflags=-fno-PIC'
```
More details see [#120](https://github.com/mattn/go-sqlite3/issues/120)
- Can't build go-sqlite3 on windows 64bit.
> Probably, you are using go 1.0, go1.0 has a problem when it comes to compiling/linking on windows 64bit.
> See: [#27](https://github.com/mattn/go-sqlite3/issues/27)
- `go get github.com/mattn/go-sqlite3` throws compilation error.
`gcc` throws: `internal compiler error`
Remove the download repository from your disk and try re-install with:
```bash
go install github.com/mattn/go-sqlite3
```
# User Authentication
This package supports the SQLite User Authentication module.
## Compile
To use the User authentication module, the package has to be compiled with the tag `sqlite_userauth`. See [Features](#features).
## Usage
### Create protected database
To create a database protected by user authentication, provide the following argument to the connection string `_auth`.
This will enable user authentication within the database. This option however requires two additional arguments:
- `_auth_user`
- `_auth_pass`
When `_auth` is present in the connection string user authentication will be enabled and the provided user will be created
as an `admin` user. After initial creation, the parameter `_auth` has no effect anymore and can be omitted from the connection string.
Example connection strings:
Create an user authentication database with user `admin` and password `admin`:
`file:test.s3db?_auth&_auth_user=admin&_auth_pass=admin`
Create an user authentication database with user `admin` and password `admin` and use `SHA1` for the password encoding:
`file:test.s3db?_auth&_auth_user=admin&_auth_pass=admin&_auth_crypt=sha1`
### Password Encoding
The passwords within the user authentication module of SQLite are encoded with the SQLite function `sqlite_cryp`.
This function uses a ceasar-cypher which is quite insecure.
This library provides several additional password encoders which can be configured through the connection string.
The password cypher can be configured with the key `_auth_crypt`. And if the configured password encoder also requires an
salt this can be configured with `_auth_salt`.
#### Available Encoders
- SHA1
- SSHA1 (Salted SHA1)
- SHA256
- SSHA256 (salted SHA256)
- SHA384
- SSHA384 (salted SHA384)
- SHA512
- SSHA512 (salted SHA512)
### Restrictions
Operations on the database regarding user management can only be preformed by an administrator user.
### Support
The user authentication supports two kinds of users:
- administrators
- regular users
### User Management
User management can be done by directly using the `*SQLiteConn` or by SQL.
#### SQL
The following sql functions are available for user management:
| Function | Arguments | Description |
|----------|-----------|-------------|
| `authenticate` | username `string`, password `string` | Will authenticate an user, this is done by the connection; and should not be used manually. |
| `auth_user_add` | username `string`, password `string`, admin `int` | This function will add an user to the database.<br>if the database is not protected by user authentication it will enable it. Argument `admin` is an integer identifying if the added user should be an administrator. Only Administrators can add administrators. |
| `auth_user_change` | username `string`, password `string`, admin `int` | Function to modify an user. Users can change their own password, but only an administrator can change the administrator flag. |
| `authUserDelete` | username `string` | Delete an user from the database. Can only be used by an administrator. The current logged in administrator cannot be deleted. This is to make sure their is always an administrator remaining. |
These functions will return an integer:
- 0 (SQLITE_OK)
- 23 (SQLITE_AUTH) Failed to perform due to authentication or insufficient privileges
##### Examples
```sql
// Autheticate user
// Create Admin User
SELECT auth_user_add('admin2', 'admin2', 1);
// Change password for user
SELECT auth_user_change('user', 'userpassword', 0);
// Delete user
SELECT user_delete('user');
```
#### *SQLiteConn
The following functions are available for User authentication from the `*SQLiteConn`:
| Function | Description |
|----------|-------------|
| `Authenticate(username, password string) error` | Authenticate user |
| `AuthUserAdd(username, password string, admin bool) error` | Add user |
| `AuthUserChange(username, password string, admin bool) error` | Modify user |
| `AuthUserDelete(username string) error` | Delete user |
### Attached database
When using attached databases, SQLite will use the authentication from the `main` database for the attached database(s).
# Extensions
If you want your own extension to be listed here, or you want to add a reference to an extension; please submit an Issue for this.
## Spatialite
Spatialite is available as an extension to SQLite, and can be used in combination with this repository.
For an example, see [shaxbee/go-spatialite](https://github.com/shaxbee/go-spatialite).
## extension-functions.c from SQLite3 Contrib
extension-functions.c is available as an extension to SQLite, and provides the following functions:
- Math: acos, asin, atan, atn2, atan2, acosh, asinh, atanh, difference, degrees, radians, cos, sin, tan, cot, cosh, sinh, tanh, coth, exp, log, log10, power, sign, sqrt, square, ceil, floor, pi.
- String: replicate, charindex, leftstr, rightstr, ltrim, rtrim, trim, replace, reverse, proper, padl, padr, padc, strfilter.
- Aggregate: stdev, variance, mode, median, lower_quartile, upper_quartile
For an example, see [dinedal/go-sqlite3-extension-functions](https://github.com/dinedal/go-sqlite3-extension-functions).
# FAQ
- Getting insert error while query is opened.
> You can pass some arguments into the connection string, for example, a URI.
> See: [#39](https://github.com/mattn/go-sqlite3/issues/39)
- Do you want to cross compile? mingw on Linux or Mac?
> See: [#106](https://github.com/mattn/go-sqlite3/issues/106)
> See also: http://www.limitlessfx.com/cross-compile-golang-app-for-windows-from-linux.html
- Want to get time.Time with current locale
Use `_loc=auto` in SQLite3 filename schema like `file:foo.db?_loc=auto`.
- Can I use this in multiple routines concurrently?
Yes for readonly. But not for writable. See [#50](https://github.com/mattn/go-sqlite3/issues/50), [#51](https://github.com/mattn/go-sqlite3/issues/51), [#209](https://github.com/mattn/go-sqlite3/issues/209), [#274](https://github.com/mattn/go-sqlite3/issues/274).
- Why I'm getting `no such table` error?
Why is it racy if I use a `sql.Open("sqlite3", ":memory:")` database?
Each connection to `":memory:"` opens a brand new in-memory sql database, so if
the stdlib's sql engine happens to open another connection and you've only
specified `":memory:"`, that connection will see a brand new database. A
workaround is to use `"file::memory:?cache=shared"` (or `"file:foobar?mode=memory&cache=shared"`). Every
connection to this string will point to the same in-memory database.
Note that if the last database connection in the pool closes, the in-memory database is deleted. Make sure the [max idle connection limit](https://golang.org/pkg/database/sql/#DB.SetMaxIdleConns) is > 0, and the [connection lifetime](https://golang.org/pkg/database/sql/#DB.SetConnMaxLifetime) is infinite.
For more information see:
* [#204](https://github.com/mattn/go-sqlite3/issues/204)
* [#511](https://github.com/mattn/go-sqlite3/issues/511)
* https://www.sqlite.org/sharedcache.html#shared_cache_and_in_memory_databases
* https://www.sqlite.org/inmemorydb.html#sharedmemdb
- Reading from database with large amount of goroutines fails on OSX.
OS X limits OS-wide to not have more than 1000 files open simultaneously by default.
For more information, see [#289](https://github.com/mattn/go-sqlite3/issues/289)
- Trying to execute a `.` (dot) command throws an error.
Error: `Error: near ".": syntax error`
Dot command are part of SQLite3 CLI, not of this library.
You need to implement the feature or call the sqlite3 cli.
More information see [#305](https://github.com/mattn/go-sqlite3/issues/305).
- Error: `database is locked`
When you get a database is locked, please use the following options.
Add to DSN: `cache=shared`
Example:
```go
db, err := sql.Open("sqlite3", "file:locked.sqlite?cache=shared")
```
Next, please set the database connections of the SQL package to 1:
```go
db.SetMaxOpenConns(1)
```
For more information, see [#209](https://github.com/mattn/go-sqlite3/issues/209).
## Contributors
### Code Contributors
This project exists thanks to all the people who [[contribute](CONTRIBUTING.md)].
<a href="https://github.com/mattn/go-sqlite3/graphs/contributors"><img src="https://opencollective.com/mattn-go-sqlite3/contributors.svg?width=890&button=false" /></a>
### Financial Contributors
Become a financial contributor and help us sustain our community. [[Contribute here](https://opencollective.com/mattn-go-sqlite3/contribute)].
#### Individuals
<a href="https://opencollective.com/mattn-go-sqlite3"><img src="https://opencollective.com/mattn-go-sqlite3/individuals.svg?width=890"></a>
#### Organizations
Support this project with your organization. Your logo will show up here with a link to your website. [[Contribute](https://opencollective.com/mattn-go-sqlite3/contribute)]
<a href="https://opencollective.com/mattn-go-sqlite3/organization/0/website"><img src="https://opencollective.com/mattn-go-sqlite3/organization/0/avatar.svg"></a>
<a href="https://opencollective.com/mattn-go-sqlite3/organization/1/website"><img src="https://opencollective.com/mattn-go-sqlite3/organization/1/avatar.svg"></a>
<a href="https://opencollective.com/mattn-go-sqlite3/organization/2/website"><img src="https://opencollective.com/mattn-go-sqlite3/organization/2/avatar.svg"></a>
<a href="https://opencollective.com/mattn-go-sqlite3/organization/3/website"><img src="https://opencollective.com/mattn-go-sqlite3/organization/3/avatar.svg"></a>
<a href="https://opencollective.com/mattn-go-sqlite3/organization/4/website"><img src="https://opencollective.com/mattn-go-sqlite3/organization/4/avatar.svg"></a>
<a href="https://opencollective.com/mattn-go-sqlite3/organization/5/website"><img src="https://opencollective.com/mattn-go-sqlite3/organization/5/avatar.svg"></a>
<a href="https://opencollective.com/mattn-go-sqlite3/organization/6/website"><img src="https://opencollective.com/mattn-go-sqlite3/organization/6/avatar.svg"></a>
<a href="https://opencollective.com/mattn-go-sqlite3/organization/7/website"><img src="https://opencollective.com/mattn-go-sqlite3/organization/7/avatar.svg"></a>
<a href="https://opencollective.com/mattn-go-sqlite3/organization/8/website"><img src="https://opencollective.com/mattn-go-sqlite3/organization/8/avatar.svg"></a>
<a href="https://opencollective.com/mattn-go-sqlite3/organization/9/website"><img src="https://opencollective.com/mattn-go-sqlite3/organization/9/avatar.svg"></a>
# License
MIT: http://mattn.mit-license.org/2018
sqlite3-binding.c, sqlite3-binding.h, sqlite3ext.h
The -binding suffix was added to avoid build failures under gccgo.
In this repository, those files are an amalgamation of code that was copied from SQLite3. The license of that code is the same as the license of SQLite3.
# Author
Yasuhiro Matsumoto (a.k.a mattn)
G.J.R. Timmer

85
vendor/github.com/mattn/go-sqlite3/backup.go generated vendored
View File

@ -1,85 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
/*
#ifndef USE_LIBSQLITE3
#include "sqlite3-binding.h"
#else
#include <sqlite3.h>
#endif
#include <stdlib.h>
*/
import "C"
import (
"runtime"
"unsafe"
)
// SQLiteBackup implement interface of Backup.
type SQLiteBackup struct {
b *C.sqlite3_backup
}
// Backup make backup from src to dest.
func (destConn *SQLiteConn) Backup(dest string, srcConn *SQLiteConn, src string) (*SQLiteBackup, error) {
destptr := C.CString(dest)
defer C.free(unsafe.Pointer(destptr))
srcptr := C.CString(src)
defer C.free(unsafe.Pointer(srcptr))
if b := C.sqlite3_backup_init(destConn.db, destptr, srcConn.db, srcptr); b != nil {
bb := &SQLiteBackup{b: b}
runtime.SetFinalizer(bb, (*SQLiteBackup).Finish)
return bb, nil
}
return nil, destConn.lastError()
}
// Step to backs up for one step. Calls the underlying `sqlite3_backup_step`
// function. This function returns a boolean indicating if the backup is done
// and an error signalling any other error. Done is returned if the underlying
// C function returns SQLITE_DONE (Code 101)
func (b *SQLiteBackup) Step(p int) (bool, error) {
ret := C.sqlite3_backup_step(b.b, C.int(p))
if ret == C.SQLITE_DONE {
return true, nil
} else if ret != 0 && ret != C.SQLITE_LOCKED && ret != C.SQLITE_BUSY {
return false, Error{Code: ErrNo(ret)}
}
return false, nil
}
// Remaining return whether have the rest for backup.
func (b *SQLiteBackup) Remaining() int {
return int(C.sqlite3_backup_remaining(b.b))
}
// PageCount return count of pages.
func (b *SQLiteBackup) PageCount() int {
return int(C.sqlite3_backup_pagecount(b.b))
}
// Finish close backup.
func (b *SQLiteBackup) Finish() error {
return b.Close()
}
// Close close backup.
func (b *SQLiteBackup) Close() error {
ret := C.sqlite3_backup_finish(b.b)
// sqlite3_backup_finish() never fails, it just returns the
// error code from previous operations, so clean up before
// checking and returning an error
b.b = nil
runtime.SetFinalizer(b, nil)
if ret != 0 {
return Error{Code: ErrNo(ret)}
}
return nil
}

411
vendor/github.com/mattn/go-sqlite3/callback.go generated vendored
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@ -1,411 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
// You can't export a Go function to C and have definitions in the C
// preamble in the same file, so we have to have callbackTrampoline in
// its own file. Because we need a separate file anyway, the support
// code for SQLite custom functions is in here.
/*
#ifndef USE_LIBSQLITE3
#include "sqlite3-binding.h"
#else
#include <sqlite3.h>
#endif
#include <stdlib.h>
void _sqlite3_result_text(sqlite3_context* ctx, const char* s);
void _sqlite3_result_blob(sqlite3_context* ctx, const void* b, int l);
*/
import "C"
import (
"errors"
"fmt"
"math"
"reflect"
"sync"
"unsafe"
)
//export callbackTrampoline
func callbackTrampoline(ctx *C.sqlite3_context, argc int, argv **C.sqlite3_value) {
args := (*[(math.MaxInt32 - 1) / unsafe.Sizeof((*C.sqlite3_value)(nil))]*C.sqlite3_value)(unsafe.Pointer(argv))[:argc:argc]
fi := lookupHandle(C.sqlite3_user_data(ctx)).(*functionInfo)
fi.Call(ctx, args)
}
//export stepTrampoline
func stepTrampoline(ctx *C.sqlite3_context, argc C.int, argv **C.sqlite3_value) {
args := (*[(math.MaxInt32 - 1) / unsafe.Sizeof((*C.sqlite3_value)(nil))]*C.sqlite3_value)(unsafe.Pointer(argv))[:int(argc):int(argc)]
ai := lookupHandle(C.sqlite3_user_data(ctx)).(*aggInfo)
ai.Step(ctx, args)
}
//export doneTrampoline
func doneTrampoline(ctx *C.sqlite3_context) {
ai := lookupHandle(C.sqlite3_user_data(ctx)).(*aggInfo)
ai.Done(ctx)
}
//export compareTrampoline
func compareTrampoline(handlePtr unsafe.Pointer, la C.int, a *C.char, lb C.int, b *C.char) C.int {
cmp := lookupHandle(handlePtr).(func(string, string) int)
return C.int(cmp(C.GoStringN(a, la), C.GoStringN(b, lb)))
}
//export commitHookTrampoline
func commitHookTrampoline(handle unsafe.Pointer) int {
callback := lookupHandle(handle).(func() int)
return callback()
}
//export rollbackHookTrampoline
func rollbackHookTrampoline(handle unsafe.Pointer) {
callback := lookupHandle(handle).(func())
callback()
}
//export updateHookTrampoline
func updateHookTrampoline(handle unsafe.Pointer, op int, db *C.char, table *C.char, rowid int64) {
callback := lookupHandle(handle).(func(int, string, string, int64))
callback(op, C.GoString(db), C.GoString(table), rowid)
}
//export authorizerTrampoline
func authorizerTrampoline(handle unsafe.Pointer, op int, arg1 *C.char, arg2 *C.char, arg3 *C.char) int {
callback := lookupHandle(handle).(func(int, string, string, string) int)
return callback(op, C.GoString(arg1), C.GoString(arg2), C.GoString(arg3))
}
//export preUpdateHookTrampoline
func preUpdateHookTrampoline(handle unsafe.Pointer, dbHandle uintptr, op int, db *C.char, table *C.char, oldrowid int64, newrowid int64) {
hval := lookupHandleVal(handle)
data := SQLitePreUpdateData{
Conn: hval.db,
Op: op,
DatabaseName: C.GoString(db),
TableName: C.GoString(table),
OldRowID: oldrowid,
NewRowID: newrowid,
}
callback := hval.val.(func(SQLitePreUpdateData))
callback(data)
}
// Use handles to avoid passing Go pointers to C.
type handleVal struct {
db *SQLiteConn
val any
}
var handleLock sync.Mutex
var handleVals = make(map[unsafe.Pointer]handleVal)
func newHandle(db *SQLiteConn, v any) unsafe.Pointer {
handleLock.Lock()
defer handleLock.Unlock()
val := handleVal{db: db, val: v}
var p unsafe.Pointer = C.malloc(C.size_t(1))
if p == nil {
panic("can't allocate 'cgo-pointer hack index pointer': ptr == nil")
}
handleVals[p] = val
return p
}
func lookupHandleVal(handle unsafe.Pointer) handleVal {
handleLock.Lock()
defer handleLock.Unlock()
return handleVals[handle]
}
func lookupHandle(handle unsafe.Pointer) any {
return lookupHandleVal(handle).val
}
func deleteHandles(db *SQLiteConn) {
handleLock.Lock()
defer handleLock.Unlock()
for handle, val := range handleVals {
if val.db == db {
delete(handleVals, handle)
C.free(handle)
}
}
}
// This is only here so that tests can refer to it.
type callbackArgRaw C.sqlite3_value
type callbackArgConverter func(*C.sqlite3_value) (reflect.Value, error)
type callbackArgCast struct {
f callbackArgConverter
typ reflect.Type
}
func (c callbackArgCast) Run(v *C.sqlite3_value) (reflect.Value, error) {
val, err := c.f(v)
if err != nil {
return reflect.Value{}, err
}
if !val.Type().ConvertibleTo(c.typ) {
return reflect.Value{}, fmt.Errorf("cannot convert %s to %s", val.Type(), c.typ)
}
return val.Convert(c.typ), nil
}
func callbackArgInt64(v *C.sqlite3_value) (reflect.Value, error) {
if C.sqlite3_value_type(v) != C.SQLITE_INTEGER {
return reflect.Value{}, fmt.Errorf("argument must be an INTEGER")
}
return reflect.ValueOf(int64(C.sqlite3_value_int64(v))), nil
}
func callbackArgBool(v *C.sqlite3_value) (reflect.Value, error) {
if C.sqlite3_value_type(v) != C.SQLITE_INTEGER {
return reflect.Value{}, fmt.Errorf("argument must be an INTEGER")
}
i := int64(C.sqlite3_value_int64(v))
val := false
if i != 0 {
val = true
}
return reflect.ValueOf(val), nil
}
func callbackArgFloat64(v *C.sqlite3_value) (reflect.Value, error) {
if C.sqlite3_value_type(v) != C.SQLITE_FLOAT {
return reflect.Value{}, fmt.Errorf("argument must be a FLOAT")
}
return reflect.ValueOf(float64(C.sqlite3_value_double(v))), nil
}
func callbackArgBytes(v *C.sqlite3_value) (reflect.Value, error) {
switch C.sqlite3_value_type(v) {
case C.SQLITE_BLOB:
l := C.sqlite3_value_bytes(v)
p := C.sqlite3_value_blob(v)
return reflect.ValueOf(C.GoBytes(p, l)), nil
case C.SQLITE_TEXT:
l := C.sqlite3_value_bytes(v)
c := unsafe.Pointer(C.sqlite3_value_text(v))
return reflect.ValueOf(C.GoBytes(c, l)), nil
default:
return reflect.Value{}, fmt.Errorf("argument must be BLOB or TEXT")
}
}
func callbackArgString(v *C.sqlite3_value) (reflect.Value, error) {
switch C.sqlite3_value_type(v) {
case C.SQLITE_BLOB:
l := C.sqlite3_value_bytes(v)
p := (*C.char)(C.sqlite3_value_blob(v))
return reflect.ValueOf(C.GoStringN(p, l)), nil
case C.SQLITE_TEXT:
c := (*C.char)(unsafe.Pointer(C.sqlite3_value_text(v)))
return reflect.ValueOf(C.GoString(c)), nil
default:
return reflect.Value{}, fmt.Errorf("argument must be BLOB or TEXT")
}
}
func callbackArgGeneric(v *C.sqlite3_value) (reflect.Value, error) {
switch C.sqlite3_value_type(v) {
case C.SQLITE_INTEGER:
return callbackArgInt64(v)
case C.SQLITE_FLOAT:
return callbackArgFloat64(v)
case C.SQLITE_TEXT:
return callbackArgString(v)
case C.SQLITE_BLOB:
return callbackArgBytes(v)
case C.SQLITE_NULL:
// Interpret NULL as a nil byte slice.
var ret []byte
return reflect.ValueOf(ret), nil
default:
panic("unreachable")
}
}
func callbackArg(typ reflect.Type) (callbackArgConverter, error) {
switch typ.Kind() {
case reflect.Interface:
if typ.NumMethod() != 0 {
return nil, errors.New("the only supported interface type is any")
}
return callbackArgGeneric, nil
case reflect.Slice:
if typ.Elem().Kind() != reflect.Uint8 {
return nil, errors.New("the only supported slice type is []byte")
}
return callbackArgBytes, nil
case reflect.String:
return callbackArgString, nil
case reflect.Bool:
return callbackArgBool, nil
case reflect.Int64:
return callbackArgInt64, nil
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Int, reflect.Uint:
c := callbackArgCast{callbackArgInt64, typ}
return c.Run, nil
case reflect.Float64:
return callbackArgFloat64, nil
case reflect.Float32:
c := callbackArgCast{callbackArgFloat64, typ}
return c.Run, nil
default:
return nil, fmt.Errorf("don't know how to convert to %s", typ)
}
}
func callbackConvertArgs(argv []*C.sqlite3_value, converters []callbackArgConverter, variadic callbackArgConverter) ([]reflect.Value, error) {
var args []reflect.Value
if len(argv) < len(converters) {
return nil, fmt.Errorf("function requires at least %d arguments", len(converters))
}
for i, arg := range argv[:len(converters)] {
v, err := converters[i](arg)
if err != nil {
return nil, err
}
args = append(args, v)
}
if variadic != nil {
for _, arg := range argv[len(converters):] {
v, err := variadic(arg)
if err != nil {
return nil, err
}
args = append(args, v)
}
}
return args, nil
}
type callbackRetConverter func(*C.sqlite3_context, reflect.Value) error
func callbackRetInteger(ctx *C.sqlite3_context, v reflect.Value) error {
switch v.Type().Kind() {
case reflect.Int64:
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Int, reflect.Uint:
v = v.Convert(reflect.TypeOf(int64(0)))
case reflect.Bool:
b := v.Interface().(bool)
if b {
v = reflect.ValueOf(int64(1))
} else {
v = reflect.ValueOf(int64(0))
}
default:
return fmt.Errorf("cannot convert %s to INTEGER", v.Type())
}
C.sqlite3_result_int64(ctx, C.sqlite3_int64(v.Interface().(int64)))
return nil
}
func callbackRetFloat(ctx *C.sqlite3_context, v reflect.Value) error {
switch v.Type().Kind() {
case reflect.Float64:
case reflect.Float32:
v = v.Convert(reflect.TypeOf(float64(0)))
default:
return fmt.Errorf("cannot convert %s to FLOAT", v.Type())
}
C.sqlite3_result_double(ctx, C.double(v.Interface().(float64)))
return nil
}
func callbackRetBlob(ctx *C.sqlite3_context, v reflect.Value) error {
if v.Type().Kind() != reflect.Slice || v.Type().Elem().Kind() != reflect.Uint8 {
return fmt.Errorf("cannot convert %s to BLOB", v.Type())
}
i := v.Interface()
if i == nil || len(i.([]byte)) == 0 {
C.sqlite3_result_null(ctx)
} else {
bs := i.([]byte)
C._sqlite3_result_blob(ctx, unsafe.Pointer(&bs[0]), C.int(len(bs)))
}
return nil
}
func callbackRetText(ctx *C.sqlite3_context, v reflect.Value) error {
if v.Type().Kind() != reflect.String {
return fmt.Errorf("cannot convert %s to TEXT", v.Type())
}
C._sqlite3_result_text(ctx, C.CString(v.Interface().(string)))
return nil
}
func callbackRetNil(ctx *C.sqlite3_context, v reflect.Value) error {
return nil
}
func callbackRetGeneric(ctx *C.sqlite3_context, v reflect.Value) error {
if v.IsNil() {
C.sqlite3_result_null(ctx)
return nil
}
cb, err := callbackRet(v.Elem().Type())
if err != nil {
return err
}
return cb(ctx, v.Elem())
}
func callbackRet(typ reflect.Type) (callbackRetConverter, error) {
switch typ.Kind() {
case reflect.Interface:
errorInterface := reflect.TypeOf((*error)(nil)).Elem()
if typ.Implements(errorInterface) {
return callbackRetNil, nil
}
if typ.NumMethod() == 0 {
return callbackRetGeneric, nil
}
fallthrough
case reflect.Slice:
if typ.Elem().Kind() != reflect.Uint8 {
return nil, errors.New("the only supported slice type is []byte")
}
return callbackRetBlob, nil
case reflect.String:
return callbackRetText, nil
case reflect.Bool, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Int, reflect.Uint:
return callbackRetInteger, nil
case reflect.Float32, reflect.Float64:
return callbackRetFloat, nil
default:
return nil, fmt.Errorf("don't know how to convert to %s", typ)
}
}
func callbackError(ctx *C.sqlite3_context, err error) {
cstr := C.CString(err.Error())
defer C.free(unsafe.Pointer(cstr))
C.sqlite3_result_error(ctx, cstr, C.int(-1))
}
// Test support code. Tests are not allowed to import "C", so we can't
// declare any functions that use C.sqlite3_value.
func callbackSyntheticForTests(v reflect.Value, err error) callbackArgConverter {
return func(*C.sqlite3_value) (reflect.Value, error) {
return v, err
}
}

299
vendor/github.com/mattn/go-sqlite3/convert.go generated vendored
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@ -1,299 +0,0 @@
// Extracted from Go database/sql source code
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Type conversions for Scan.
package sqlite3
import (
"database/sql"
"database/sql/driver"
"errors"
"fmt"
"reflect"
"strconv"
"time"
)
var errNilPtr = errors.New("destination pointer is nil") // embedded in descriptive error
// convertAssign copies to dest the value in src, converting it if possible.
// An error is returned if the copy would result in loss of information.
// dest should be a pointer type.
func convertAssign(dest, src any) error {
// Common cases, without reflect.
switch s := src.(type) {
case string:
switch d := dest.(type) {
case *string:
if d == nil {
return errNilPtr
}
*d = s
return nil
case *[]byte:
if d == nil {
return errNilPtr
}
*d = []byte(s)
return nil
case *sql.RawBytes:
if d == nil {
return errNilPtr
}
*d = append((*d)[:0], s...)
return nil
}
case []byte:
switch d := dest.(type) {
case *string:
if d == nil {
return errNilPtr
}
*d = string(s)
return nil
case *any:
if d == nil {
return errNilPtr
}
*d = cloneBytes(s)
return nil
case *[]byte:
if d == nil {
return errNilPtr
}
*d = cloneBytes(s)
return nil
case *sql.RawBytes:
if d == nil {
return errNilPtr
}
*d = s
return nil
}
case time.Time:
switch d := dest.(type) {
case *time.Time:
*d = s
return nil
case *string:
*d = s.Format(time.RFC3339Nano)
return nil
case *[]byte:
if d == nil {
return errNilPtr
}
*d = []byte(s.Format(time.RFC3339Nano))
return nil
case *sql.RawBytes:
if d == nil {
return errNilPtr
}
*d = s.AppendFormat((*d)[:0], time.RFC3339Nano)
return nil
}
case nil:
switch d := dest.(type) {
case *any:
if d == nil {
return errNilPtr
}
*d = nil
return nil
case *[]byte:
if d == nil {
return errNilPtr
}
*d = nil
return nil
case *sql.RawBytes:
if d == nil {
return errNilPtr
}
*d = nil
return nil
}
}
var sv reflect.Value
switch d := dest.(type) {
case *string:
sv = reflect.ValueOf(src)
switch sv.Kind() {
case reflect.Bool,
reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64,
reflect.Float32, reflect.Float64:
*d = asString(src)
return nil
}
case *[]byte:
sv = reflect.ValueOf(src)
if b, ok := asBytes(nil, sv); ok {
*d = b
return nil
}
case *sql.RawBytes:
sv = reflect.ValueOf(src)
if b, ok := asBytes([]byte(*d)[:0], sv); ok {
*d = sql.RawBytes(b)
return nil
}
case *bool:
bv, err := driver.Bool.ConvertValue(src)
if err == nil {
*d = bv.(bool)
}
return err
case *any:
*d = src
return nil
}
if scanner, ok := dest.(sql.Scanner); ok {
return scanner.Scan(src)
}
dpv := reflect.ValueOf(dest)
if dpv.Kind() != reflect.Ptr {
return errors.New("destination not a pointer")
}
if dpv.IsNil() {
return errNilPtr
}
if !sv.IsValid() {
sv = reflect.ValueOf(src)
}
dv := reflect.Indirect(dpv)
if sv.IsValid() && sv.Type().AssignableTo(dv.Type()) {
switch b := src.(type) {
case []byte:
dv.Set(reflect.ValueOf(cloneBytes(b)))
default:
dv.Set(sv)
}
return nil
}
if dv.Kind() == sv.Kind() && sv.Type().ConvertibleTo(dv.Type()) {
dv.Set(sv.Convert(dv.Type()))
return nil
}
// The following conversions use a string value as an intermediate representation
// to convert between various numeric types.
//
// This also allows scanning into user defined types such as "type Int int64".
// For symmetry, also check for string destination types.
switch dv.Kind() {
case reflect.Ptr:
if src == nil {
dv.Set(reflect.Zero(dv.Type()))
return nil
}
dv.Set(reflect.New(dv.Type().Elem()))
return convertAssign(dv.Interface(), src)
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
s := asString(src)
i64, err := strconv.ParseInt(s, 10, dv.Type().Bits())
if err != nil {
err = strconvErr(err)
return fmt.Errorf("converting driver.Value type %T (%q) to a %s: %v", src, s, dv.Kind(), err)
}
dv.SetInt(i64)
return nil
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
s := asString(src)
u64, err := strconv.ParseUint(s, 10, dv.Type().Bits())
if err != nil {
err = strconvErr(err)
return fmt.Errorf("converting driver.Value type %T (%q) to a %s: %v", src, s, dv.Kind(), err)
}
dv.SetUint(u64)
return nil
case reflect.Float32, reflect.Float64:
s := asString(src)
f64, err := strconv.ParseFloat(s, dv.Type().Bits())
if err != nil {
err = strconvErr(err)
return fmt.Errorf("converting driver.Value type %T (%q) to a %s: %v", src, s, dv.Kind(), err)
}
dv.SetFloat(f64)
return nil
case reflect.String:
switch v := src.(type) {
case string:
dv.SetString(v)
return nil
case []byte:
dv.SetString(string(v))
return nil
}
}
return fmt.Errorf("unsupported Scan, storing driver.Value type %T into type %T", src, dest)
}
func strconvErr(err error) error {
if ne, ok := err.(*strconv.NumError); ok {
return ne.Err
}
return err
}
func cloneBytes(b []byte) []byte {
if b == nil {
return nil
}
c := make([]byte, len(b))
copy(c, b)
return c
}
func asString(src any) string {
switch v := src.(type) {
case string:
return v
case []byte:
return string(v)
}
rv := reflect.ValueOf(src)
switch rv.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return strconv.FormatInt(rv.Int(), 10)
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return strconv.FormatUint(rv.Uint(), 10)
case reflect.Float64:
return strconv.FormatFloat(rv.Float(), 'g', -1, 64)
case reflect.Float32:
return strconv.FormatFloat(rv.Float(), 'g', -1, 32)
case reflect.Bool:
return strconv.FormatBool(rv.Bool())
}
return fmt.Sprintf("%v", src)
}
func asBytes(buf []byte, rv reflect.Value) (b []byte, ok bool) {
switch rv.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return strconv.AppendInt(buf, rv.Int(), 10), true
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return strconv.AppendUint(buf, rv.Uint(), 10), true
case reflect.Float32:
return strconv.AppendFloat(buf, rv.Float(), 'g', -1, 32), true
case reflect.Float64:
return strconv.AppendFloat(buf, rv.Float(), 'g', -1, 64), true
case reflect.Bool:
return strconv.AppendBool(buf, rv.Bool()), true
case reflect.String:
s := rv.String()
return append(buf, s...), true
}
return
}

134
vendor/github.com/mattn/go-sqlite3/doc.go generated vendored
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@ -1,134 +0,0 @@
/*
Package sqlite3 provides interface to SQLite3 databases.
This works as a driver for database/sql.
Installation
go get github.com/mattn/go-sqlite3
# Supported Types
Currently, go-sqlite3 supports the following data types.
+------------------------------+
|go | sqlite3 |
|----------|-------------------|
|nil | null |
|int | integer |
|int64 | integer |
|float64 | float |
|bool | integer |
|[]byte | blob |
|string | text |
|time.Time | timestamp/datetime|
+------------------------------+
# SQLite3 Extension
You can write your own extension module for sqlite3. For example, below is an
extension for a Regexp matcher operation.
#include <pcre.h>
#include <string.h>
#include <stdio.h>
#include <sqlite3ext.h>
SQLITE_EXTENSION_INIT1
static void regexp_func(sqlite3_context *context, int argc, sqlite3_value **argv) {
if (argc >= 2) {
const char *target = (const char *)sqlite3_value_text(argv[1]);
const char *pattern = (const char *)sqlite3_value_text(argv[0]);
const char* errstr = NULL;
int erroff = 0;
int vec[500];
int n, rc;
pcre* re = pcre_compile(pattern, 0, &errstr, &erroff, NULL);
rc = pcre_exec(re, NULL, target, strlen(target), 0, 0, vec, 500);
if (rc <= 0) {
sqlite3_result_error(context, errstr, 0);
return;
}
sqlite3_result_int(context, 1);
}
}
#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_extension_init(sqlite3 *db, char **errmsg,
const sqlite3_api_routines *api) {
SQLITE_EXTENSION_INIT2(api);
return sqlite3_create_function(db, "regexp", 2, SQLITE_UTF8,
(void*)db, regexp_func, NULL, NULL);
}
It needs to be built as a so/dll shared library. And you need to register
the extension module like below.
sql.Register("sqlite3_with_extensions",
&sqlite3.SQLiteDriver{
Extensions: []string{
"sqlite3_mod_regexp",
},
})
Then, you can use this extension.
rows, err := db.Query("select text from mytable where name regexp '^golang'")
# Connection Hook
You can hook and inject your code when the connection is established by setting
ConnectHook to get the SQLiteConn.
sql.Register("sqlite3_with_hook_example",
&sqlite3.SQLiteDriver{
ConnectHook: func(conn *sqlite3.SQLiteConn) error {
sqlite3conn = append(sqlite3conn, conn)
return nil
},
})
You can also use database/sql.Conn.Raw (Go >= 1.13):
conn, err := db.Conn(context.Background())
// if err != nil { ... }
defer conn.Close()
err = conn.Raw(func (driverConn any) error {
sqliteConn := driverConn.(*sqlite3.SQLiteConn)
// ... use sqliteConn
})
// if err != nil { ... }
# Go SQlite3 Extensions
If you want to register Go functions as SQLite extension functions
you can make a custom driver by calling RegisterFunction from
ConnectHook.
regex = func(re, s string) (bool, error) {
return regexp.MatchString(re, s)
}
sql.Register("sqlite3_extended",
&sqlite3.SQLiteDriver{
ConnectHook: func(conn *sqlite3.SQLiteConn) error {
return conn.RegisterFunc("regexp", regex, true)
},
})
You can then use the custom driver by passing its name to sql.Open.
var i int
conn, err := sql.Open("sqlite3_extended", "./foo.db")
if err != nil {
panic(err)
}
err = db.QueryRow(`SELECT regexp("foo.*", "seafood")`).Scan(&i)
if err != nil {
panic(err)
}
See the documentation of RegisterFunc for more details.
*/
package sqlite3

150
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@ -1,150 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
/*
#ifndef USE_LIBSQLITE3
#include "sqlite3-binding.h"
#else
#include <sqlite3.h>
#endif
*/
import "C"
import "syscall"
// ErrNo inherit errno.
type ErrNo int
// ErrNoMask is mask code.
const ErrNoMask C.int = 0xff
// ErrNoExtended is extended errno.
type ErrNoExtended int
// Error implement sqlite error code.
type Error struct {
Code ErrNo /* The error code returned by SQLite */
ExtendedCode ErrNoExtended /* The extended error code returned by SQLite */
SystemErrno syscall.Errno /* The system errno returned by the OS through SQLite, if applicable */
err string /* The error string returned by sqlite3_errmsg(),
this usually contains more specific details. */
}
// result codes from http://www.sqlite.org/c3ref/c_abort.html
var (
ErrError = ErrNo(1) /* SQL error or missing database */
ErrInternal = ErrNo(2) /* Internal logic error in SQLite */
ErrPerm = ErrNo(3) /* Access permission denied */
ErrAbort = ErrNo(4) /* Callback routine requested an abort */
ErrBusy = ErrNo(5) /* The database file is locked */
ErrLocked = ErrNo(6) /* A table in the database is locked */
ErrNomem = ErrNo(7) /* A malloc() failed */
ErrReadonly = ErrNo(8) /* Attempt to write a readonly database */
ErrInterrupt = ErrNo(9) /* Operation terminated by sqlite3_interrupt() */
ErrIoErr = ErrNo(10) /* Some kind of disk I/O error occurred */
ErrCorrupt = ErrNo(11) /* The database disk image is malformed */
ErrNotFound = ErrNo(12) /* Unknown opcode in sqlite3_file_control() */
ErrFull = ErrNo(13) /* Insertion failed because database is full */
ErrCantOpen = ErrNo(14) /* Unable to open the database file */
ErrProtocol = ErrNo(15) /* Database lock protocol error */
ErrEmpty = ErrNo(16) /* Database is empty */
ErrSchema = ErrNo(17) /* The database schema changed */
ErrTooBig = ErrNo(18) /* String or BLOB exceeds size limit */
ErrConstraint = ErrNo(19) /* Abort due to constraint violation */
ErrMismatch = ErrNo(20) /* Data type mismatch */
ErrMisuse = ErrNo(21) /* Library used incorrectly */
ErrNoLFS = ErrNo(22) /* Uses OS features not supported on host */
ErrAuth = ErrNo(23) /* Authorization denied */
ErrFormat = ErrNo(24) /* Auxiliary database format error */
ErrRange = ErrNo(25) /* 2nd parameter to sqlite3_bind out of range */
ErrNotADB = ErrNo(26) /* File opened that is not a database file */
ErrNotice = ErrNo(27) /* Notifications from sqlite3_log() */
ErrWarning = ErrNo(28) /* Warnings from sqlite3_log() */
)
// Error return error message from errno.
func (err ErrNo) Error() string {
return Error{Code: err}.Error()
}
// Extend return extended errno.
func (err ErrNo) Extend(by int) ErrNoExtended {
return ErrNoExtended(int(err) | (by << 8))
}
// Error return error message that is extended code.
func (err ErrNoExtended) Error() string {
return Error{Code: ErrNo(C.int(err) & ErrNoMask), ExtendedCode: err}.Error()
}
func (err Error) Error() string {
var str string
if err.err != "" {
str = err.err
} else {
str = C.GoString(C.sqlite3_errstr(C.int(err.Code)))
}
if err.SystemErrno != 0 {
str += ": " + err.SystemErrno.Error()
}
return str
}
// result codes from http://www.sqlite.org/c3ref/c_abort_rollback.html
var (
ErrIoErrRead = ErrIoErr.Extend(1)
ErrIoErrShortRead = ErrIoErr.Extend(2)
ErrIoErrWrite = ErrIoErr.Extend(3)
ErrIoErrFsync = ErrIoErr.Extend(4)
ErrIoErrDirFsync = ErrIoErr.Extend(5)
ErrIoErrTruncate = ErrIoErr.Extend(6)
ErrIoErrFstat = ErrIoErr.Extend(7)
ErrIoErrUnlock = ErrIoErr.Extend(8)
ErrIoErrRDlock = ErrIoErr.Extend(9)
ErrIoErrDelete = ErrIoErr.Extend(10)
ErrIoErrBlocked = ErrIoErr.Extend(11)
ErrIoErrNoMem = ErrIoErr.Extend(12)
ErrIoErrAccess = ErrIoErr.Extend(13)
ErrIoErrCheckReservedLock = ErrIoErr.Extend(14)
ErrIoErrLock = ErrIoErr.Extend(15)
ErrIoErrClose = ErrIoErr.Extend(16)
ErrIoErrDirClose = ErrIoErr.Extend(17)
ErrIoErrSHMOpen = ErrIoErr.Extend(18)
ErrIoErrSHMSize = ErrIoErr.Extend(19)
ErrIoErrSHMLock = ErrIoErr.Extend(20)
ErrIoErrSHMMap = ErrIoErr.Extend(21)
ErrIoErrSeek = ErrIoErr.Extend(22)
ErrIoErrDeleteNoent = ErrIoErr.Extend(23)
ErrIoErrMMap = ErrIoErr.Extend(24)
ErrIoErrGetTempPath = ErrIoErr.Extend(25)
ErrIoErrConvPath = ErrIoErr.Extend(26)
ErrLockedSharedCache = ErrLocked.Extend(1)
ErrBusyRecovery = ErrBusy.Extend(1)
ErrBusySnapshot = ErrBusy.Extend(2)
ErrCantOpenNoTempDir = ErrCantOpen.Extend(1)
ErrCantOpenIsDir = ErrCantOpen.Extend(2)
ErrCantOpenFullPath = ErrCantOpen.Extend(3)
ErrCantOpenConvPath = ErrCantOpen.Extend(4)
ErrCorruptVTab = ErrCorrupt.Extend(1)
ErrReadonlyRecovery = ErrReadonly.Extend(1)
ErrReadonlyCantLock = ErrReadonly.Extend(2)
ErrReadonlyRollback = ErrReadonly.Extend(3)
ErrReadonlyDbMoved = ErrReadonly.Extend(4)
ErrAbortRollback = ErrAbort.Extend(2)
ErrConstraintCheck = ErrConstraint.Extend(1)
ErrConstraintCommitHook = ErrConstraint.Extend(2)
ErrConstraintForeignKey = ErrConstraint.Extend(3)
ErrConstraintFunction = ErrConstraint.Extend(4)
ErrConstraintNotNull = ErrConstraint.Extend(5)
ErrConstraintPrimaryKey = ErrConstraint.Extend(6)
ErrConstraintTrigger = ErrConstraint.Extend(7)
ErrConstraintUnique = ErrConstraint.Extend(8)
ErrConstraintVTab = ErrConstraint.Extend(9)
ErrConstraintRowID = ErrConstraint.Extend(10)
ErrNoticeRecoverWAL = ErrNotice.Extend(1)
ErrNoticeRecoverRollback = ErrNotice.Extend(2)
ErrWarningAutoIndex = ErrWarning.Extend(1)
)

258039
vendor/github.com/mattn/go-sqlite3/sqlite3-binding.c generated vendored
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vendor/github.com/mattn/go-sqlite3/sqlite3-binding.h generated vendored
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2281
vendor/github.com/mattn/go-sqlite3/sqlite3.go generated vendored
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103
vendor/github.com/mattn/go-sqlite3/sqlite3_context.go generated vendored
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@ -1,103 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
/*
#ifndef USE_LIBSQLITE3
#include "sqlite3-binding.h"
#else
#include <sqlite3.h>
#endif
#include <stdlib.h>
// These wrappers are necessary because SQLITE_TRANSIENT
// is a pointer constant, and cgo doesn't translate them correctly.
static inline void my_result_text(sqlite3_context *ctx, char *p, int np) {
sqlite3_result_text(ctx, p, np, SQLITE_TRANSIENT);
}
static inline void my_result_blob(sqlite3_context *ctx, void *p, int np) {
sqlite3_result_blob(ctx, p, np, SQLITE_TRANSIENT);
}
*/
import "C"
import (
"math"
"reflect"
"unsafe"
)
const i64 = unsafe.Sizeof(int(0)) > 4
// SQLiteContext behave sqlite3_context
type SQLiteContext C.sqlite3_context
// ResultBool sets the result of an SQL function.
func (c *SQLiteContext) ResultBool(b bool) {
if b {
c.ResultInt(1)
} else {
c.ResultInt(0)
}
}
// ResultBlob sets the result of an SQL function.
// See: sqlite3_result_blob, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultBlob(b []byte) {
if i64 && len(b) > math.MaxInt32 {
C.sqlite3_result_error_toobig((*C.sqlite3_context)(c))
return
}
var p *byte
if len(b) > 0 {
p = &b[0]
}
C.my_result_blob((*C.sqlite3_context)(c), unsafe.Pointer(p), C.int(len(b)))
}
// ResultDouble sets the result of an SQL function.
// See: sqlite3_result_double, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultDouble(d float64) {
C.sqlite3_result_double((*C.sqlite3_context)(c), C.double(d))
}
// ResultInt sets the result of an SQL function.
// See: sqlite3_result_int, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultInt(i int) {
if i64 && (i > math.MaxInt32 || i < math.MinInt32) {
C.sqlite3_result_int64((*C.sqlite3_context)(c), C.sqlite3_int64(i))
} else {
C.sqlite3_result_int((*C.sqlite3_context)(c), C.int(i))
}
}
// ResultInt64 sets the result of an SQL function.
// See: sqlite3_result_int64, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultInt64(i int64) {
C.sqlite3_result_int64((*C.sqlite3_context)(c), C.sqlite3_int64(i))
}
// ResultNull sets the result of an SQL function.
// See: sqlite3_result_null, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultNull() {
C.sqlite3_result_null((*C.sqlite3_context)(c))
}
// ResultText sets the result of an SQL function.
// See: sqlite3_result_text, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultText(s string) {
h := (*reflect.StringHeader)(unsafe.Pointer(&s))
cs, l := (*C.char)(unsafe.Pointer(h.Data)), C.int(h.Len)
C.my_result_text((*C.sqlite3_context)(c), cs, l)
}
// ResultZeroblob sets the result of an SQL function.
// See: sqlite3_result_zeroblob, http://sqlite.org/c3ref/result_blob.html
func (c *SQLiteContext) ResultZeroblob(n int) {
C.sqlite3_result_zeroblob((*C.sqlite3_context)(c), C.int(n))
}

120
vendor/github.com/mattn/go-sqlite3/sqlite3_func_crypt.go generated vendored
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@ -1,120 +0,0 @@
// Copyright (C) 2018 G.J.R. Timmer <gjr.timmer@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
import (
"crypto/sha1"
"crypto/sha256"
"crypto/sha512"
)
// This file provides several different implementations for the
// default embedded sqlite_crypt function.
// This function is uses a caesar-cypher by default
// and is used within the UserAuthentication module to encode
// the password.
//
// The provided functions can be used as an overload to the sqlite_crypt
// function through the use of the RegisterFunc on the connection.
//
// Because the functions can serv a purpose to an end-user
// without using the UserAuthentication module
// the functions are default compiled in.
//
// From SQLITE3 - user-auth.txt
// The sqlite_user.pw field is encoded by a built-in SQL function
// "sqlite_crypt(X,Y)". The two arguments are both BLOBs. The first argument
// is the plaintext password supplied to the sqlite3_user_authenticate()
// interface. The second argument is the sqlite_user.pw value and is supplied
// so that the function can extract the "salt" used by the password encoder.
// The result of sqlite_crypt(X,Y) is another blob which is the value that
// ends up being stored in sqlite_user.pw. To verify credentials X supplied
// by the sqlite3_user_authenticate() routine, SQLite runs:
//
// sqlite_user.pw == sqlite_crypt(X, sqlite_user.pw)
//
// To compute an appropriate sqlite_user.pw value from a new or modified
// password X, sqlite_crypt(X,NULL) is run. A new random salt is selected
// when the second argument is NULL.
//
// The built-in version of of sqlite_crypt() uses a simple Caesar-cypher
// which prevents passwords from being revealed by searching the raw database
// for ASCII text, but is otherwise trivally broken. For better password
// security, the database should be encrypted using the SQLite Encryption
// Extension or similar technology. Or, the application can use the
// sqlite3_create_function() interface to provide an alternative
// implementation of sqlite_crypt() that computes a stronger password hash,
// perhaps using a cryptographic hash function like SHA1.
// CryptEncoderSHA1 encodes a password with SHA1
func CryptEncoderSHA1(pass []byte, hash any) []byte {
h := sha1.Sum(pass)
return h[:]
}
// CryptEncoderSSHA1 encodes a password with SHA1 with the
// configured salt.
func CryptEncoderSSHA1(salt string) func(pass []byte, hash any) []byte {
return func(pass []byte, hash any) []byte {
s := []byte(salt)
p := append(pass, s...)
h := sha1.Sum(p)
return h[:]
}
}
// CryptEncoderSHA256 encodes a password with SHA256
func CryptEncoderSHA256(pass []byte, hash any) []byte {
h := sha256.Sum256(pass)
return h[:]
}
// CryptEncoderSSHA256 encodes a password with SHA256
// with the configured salt
func CryptEncoderSSHA256(salt string) func(pass []byte, hash any) []byte {
return func(pass []byte, hash any) []byte {
s := []byte(salt)
p := append(pass, s...)
h := sha256.Sum256(p)
return h[:]
}
}
// CryptEncoderSHA384 encodes a password with SHA384
func CryptEncoderSHA384(pass []byte, hash any) []byte {
h := sha512.Sum384(pass)
return h[:]
}
// CryptEncoderSSHA384 encodes a password with SHA384
// with the configured salt
func CryptEncoderSSHA384(salt string) func(pass []byte, hash any) []byte {
return func(pass []byte, hash any) []byte {
s := []byte(salt)
p := append(pass, s...)
h := sha512.Sum384(p)
return h[:]
}
}
// CryptEncoderSHA512 encodes a password with SHA512
func CryptEncoderSHA512(pass []byte, hash any) []byte {
h := sha512.Sum512(pass)
return h[:]
}
// CryptEncoderSSHA512 encodes a password with SHA512
// with the configured salt
func CryptEncoderSSHA512(salt string) func(pass []byte, hash any) []byte {
return func(pass []byte, hash any) []byte {
s := []byte(salt)
p := append(pass, s...)
h := sha512.Sum512(p)
return h[:]
}
}
// EOF

54
vendor/github.com/mattn/go-sqlite3/sqlite3_go18.go generated vendored
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@ -1,54 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build cgo && go1.8
// +build cgo,go1.8
package sqlite3
import (
"database/sql/driver"
"context"
)
// Ping implement Pinger.
func (c *SQLiteConn) Ping(ctx context.Context) error {
if c.db == nil {
// must be ErrBadConn for sql to close the database
return driver.ErrBadConn
}
return nil
}
// QueryContext implement QueryerContext.
func (c *SQLiteConn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
return c.query(ctx, query, args)
}
// ExecContext implement ExecerContext.
func (c *SQLiteConn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
return c.exec(ctx, query, args)
}
// PrepareContext implement ConnPrepareContext.
func (c *SQLiteConn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
return c.prepare(ctx, query)
}
// BeginTx implement ConnBeginTx.
func (c *SQLiteConn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
return c.begin(ctx)
}
// QueryContext implement QueryerContext.
func (s *SQLiteStmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
return s.query(ctx, args)
}
// ExecContext implement ExecerContext.
func (s *SQLiteStmt) ExecContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
return s.exec(ctx, args)
}

23
vendor/github.com/mattn/go-sqlite3/sqlite3_libsqlite3.go generated vendored
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@ -1,23 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build libsqlite3
// +build libsqlite3
package sqlite3
/*
#cgo CFLAGS: -DUSE_LIBSQLITE3
#cgo linux LDFLAGS: -lsqlite3
#cgo darwin,amd64 LDFLAGS: -L/usr/local/opt/sqlite/lib -lsqlite3
#cgo darwin,amd64 CFLAGS: -I/usr/local/opt/sqlite/include
#cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/sqlite/lib -lsqlite3
#cgo darwin,arm64 CFLAGS: -I/opt/homebrew/opt/sqlite/include
#cgo openbsd LDFLAGS: -lsqlite3
#cgo solaris LDFLAGS: -lsqlite3
#cgo windows LDFLAGS: -lsqlite3
#cgo zos LDFLAGS: -lsqlite3
*/
import "C"

85
vendor/github.com/mattn/go-sqlite3/sqlite3_load_extension.go generated vendored
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@ -1,85 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build !sqlite_omit_load_extension
// +build !sqlite_omit_load_extension
package sqlite3
/*
#ifndef USE_LIBSQLITE3
#include "sqlite3-binding.h"
#else
#include <sqlite3.h>
#endif
#include <stdlib.h>
*/
import "C"
import (
"errors"
"unsafe"
)
func (c *SQLiteConn) loadExtensions(extensions []string) error {
rv := C.sqlite3_enable_load_extension(c.db, 1)
if rv != C.SQLITE_OK {
return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
}
for _, extension := range extensions {
if err := c.loadExtension(extension, nil); err != nil {
C.sqlite3_enable_load_extension(c.db, 0)
return err
}
}
rv = C.sqlite3_enable_load_extension(c.db, 0)
if rv != C.SQLITE_OK {
return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
}
return nil
}
// LoadExtension load the sqlite3 extension.
func (c *SQLiteConn) LoadExtension(lib string, entry string) error {
rv := C.sqlite3_enable_load_extension(c.db, 1)
if rv != C.SQLITE_OK {
return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
}
if err := c.loadExtension(lib, &entry); err != nil {
C.sqlite3_enable_load_extension(c.db, 0)
return err
}
rv = C.sqlite3_enable_load_extension(c.db, 0)
if rv != C.SQLITE_OK {
return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
}
return nil
}
func (c *SQLiteConn) loadExtension(lib string, entry *string) error {
clib := C.CString(lib)
defer C.free(unsafe.Pointer(clib))
var centry *C.char
if entry != nil {
centry = C.CString(*entry)
defer C.free(unsafe.Pointer(centry))
}
var errMsg *C.char
defer C.sqlite3_free(unsafe.Pointer(errMsg))
rv := C.sqlite3_load_extension(c.db, clib, centry, &errMsg)
if rv != C.SQLITE_OK {
return errors.New(C.GoString(errMsg))
}
return nil
}

25
vendor/github.com/mattn/go-sqlite3/sqlite3_load_extension_omit.go generated vendored
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@ -1,25 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build sqlite_omit_load_extension
// +build sqlite_omit_load_extension
package sqlite3
/*
#cgo CFLAGS: -DSQLITE_OMIT_LOAD_EXTENSION
*/
import "C"
import (
"errors"
)
func (c *SQLiteConn) loadExtensions(extensions []string) error {
return errors.New("Extensions have been disabled for static builds")
}
func (c *SQLiteConn) LoadExtension(lib string, entry string) error {
return errors.New("Extensions have been disabled for static builds")
}

16
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_allow_uri_authority.go generated vendored
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@ -1,16 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
// Copyright (C) 2018 G.J.R. Timmer <gjr.timmer@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build sqlite_allow_uri_authority
// +build sqlite_allow_uri_authority
package sqlite3
/*
#cgo CFLAGS: -DSQLITE_ALLOW_URI_AUTHORITY
#cgo LDFLAGS: -lm
*/
import "C"

16
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_app_armor.go generated vendored
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@ -1,16 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
// Copyright (C) 2018 G.J.R. Timmer <gjr.timmer@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build !windows && sqlite_app_armor
// +build !windows,sqlite_app_armor
package sqlite3
/*
#cgo CFLAGS: -DSQLITE_ENABLE_API_ARMOR
#cgo LDFLAGS: -lm
*/
import "C"

22
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_column_metadata.go generated vendored
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@ -1,22 +0,0 @@
//go:build sqlite_column_metadata
// +build sqlite_column_metadata
package sqlite3
/*
#ifndef USE_LIBSQLITE3
#cgo CFLAGS: -DSQLITE_ENABLE_COLUMN_METADATA
#include <sqlite3-binding.h>
#else
#include <sqlite3.h>
#endif
*/
import "C"
// ColumnTableName returns the table that is the origin of a particular result
// column in a SELECT statement.
//
// See https://www.sqlite.org/c3ref/column_database_name.html
func (s *SQLiteStmt) ColumnTableName(n int) string {
return C.GoString(C.sqlite3_column_table_name(s.s, C.int(n)))
}

16
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_foreign_keys.go generated vendored
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@ -1,16 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
// Copyright (C) 2018 G.J.R. Timmer <gjr.timmer@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build sqlite_foreign_keys
// +build sqlite_foreign_keys
package sqlite3
/*
#cgo CFLAGS: -DSQLITE_DEFAULT_FOREIGN_KEYS=1
#cgo LDFLAGS: -lm
*/
import "C"

15
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_fts5.go generated vendored
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@ -1,15 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build sqlite_fts5 || fts5
// +build sqlite_fts5 fts5
package sqlite3
/*
#cgo CFLAGS: -DSQLITE_ENABLE_FTS5
#cgo LDFLAGS: -lm
*/
import "C"

20
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_icu.go generated vendored
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@ -1,20 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build sqlite_icu || icu
// +build sqlite_icu icu
package sqlite3
/*
#cgo LDFLAGS: -licuuc -licui18n
#cgo CFLAGS: -DSQLITE_ENABLE_ICU
#cgo darwin,amd64 CFLAGS: -I/usr/local/opt/icu4c/include
#cgo darwin,amd64 LDFLAGS: -L/usr/local/opt/icu4c/lib
#cgo darwin,arm64 CFLAGS: -I/opt/homebrew/opt/icu4c/include
#cgo darwin,arm64 LDFLAGS: -L/opt/homebrew/opt/icu4c/lib
#cgo openbsd LDFLAGS: -lsqlite3
*/
import "C"

16
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_introspect.go generated vendored
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@ -1,16 +0,0 @@
// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
// Copyright (C) 2018 G.J.R. Timmer <gjr.timmer@gmail.com>.
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build sqlite_introspect
// +build sqlite_introspect
package sqlite3
/*
#cgo CFLAGS: -DSQLITE_INTROSPECTION_PRAGMAS
#cgo LDFLAGS: -lm
*/
import "C"

15
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_math_functions.go generated vendored
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@ -1,15 +0,0 @@
// Copyright (C) 2022 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build sqlite_math_functions
// +build sqlite_math_functions
package sqlite3
/*
#cgo CFLAGS: -DSQLITE_ENABLE_MATH_FUNCTIONS
#cgo LDFLAGS: -lm
*/
import "C"

15
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_os_trace.go generated vendored
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@ -1,15 +0,0 @@
// Copyright (C) 2022 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build sqlite_os_trace
// +build sqlite_os_trace
package sqlite3
/*
#cgo CFLAGS: -DSQLITE_FORCE_OS_TRACE=1
#cgo CFLAGS: -DSQLITE_DEBUG_OS_TRACE=1
*/
import "C"

21
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_preupdate.go generated vendored
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@ -1,21 +0,0 @@
// Copyright (C) 2019 G.J.R. Timmer <gjr.timmer@gmail.com>.
// Copyright (C) 2018 segment.com <friends@segment.com>
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build cgo
// +build cgo
package sqlite3
// SQLitePreUpdateData represents all of the data available during a
// pre-update hook call.
type SQLitePreUpdateData struct {
Conn *SQLiteConn
Op int
DatabaseName string
TableName string
OldRowID int64
NewRowID int64
}

113
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_preupdate_hook.go generated vendored
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@ -1,113 +0,0 @@
// Copyright (C) 2019 G.J.R. Timmer <gjr.timmer@gmail.com>.
// Copyright (C) 2018 segment.com <friends@segment.com>
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build sqlite_preupdate_hook
// +build sqlite_preupdate_hook
package sqlite3
/*
#cgo CFLAGS: -DSQLITE_ENABLE_PREUPDATE_HOOK
#cgo LDFLAGS: -lm
#ifndef USE_LIBSQLITE3
#include "sqlite3-binding.h"
#else
#include <sqlite3.h>
#endif
#include <stdlib.h>
#include <string.h>
void preUpdateHookTrampoline(void*, sqlite3 *, int, char *, char *, sqlite3_int64, sqlite3_int64);
*/
import "C"
import (
"errors"
"unsafe"
)
// RegisterPreUpdateHook sets the pre-update hook for a connection.
//
// The callback is passed a SQLitePreUpdateData struct with the data for
// the update, as well as methods for fetching copies of impacted data.
//
// If there is an existing preupdate hook for this connection, it will be
// removed. If callback is nil the existing hook (if any) will be removed
// without creating a new one.
func (c *SQLiteConn) RegisterPreUpdateHook(callback func(SQLitePreUpdateData)) {
if callback == nil {
C.sqlite3_preupdate_hook(c.db, nil, nil)
} else {
C.sqlite3_preupdate_hook(c.db, (*[0]byte)(unsafe.Pointer(C.preUpdateHookTrampoline)), unsafe.Pointer(newHandle(c, callback)))
}
}
// Depth returns the source path of the write, see sqlite3_preupdate_depth()
func (d *SQLitePreUpdateData) Depth() int {
return int(C.sqlite3_preupdate_depth(d.Conn.db))
}
// Count returns the number of columns in the row
func (d *SQLitePreUpdateData) Count() int {
return int(C.sqlite3_preupdate_count(d.Conn.db))
}
func (d *SQLitePreUpdateData) row(dest []any, new bool) error {
for i := 0; i < d.Count() && i < len(dest); i++ {
var val *C.sqlite3_value
var src any
// Initially I tried making this just a function pointer argument, but
// it's absurdly complicated to pass C function pointers.
if new {
C.sqlite3_preupdate_new(d.Conn.db, C.int(i), &val)
} else {
C.sqlite3_preupdate_old(d.Conn.db, C.int(i), &val)
}
switch C.sqlite3_value_type(val) {
case C.SQLITE_INTEGER:
src = int64(C.sqlite3_value_int64(val))
case C.SQLITE_FLOAT:
src = float64(C.sqlite3_value_double(val))
case C.SQLITE_BLOB:
len := C.sqlite3_value_bytes(val)
blobptr := C.sqlite3_value_blob(val)
src = C.GoBytes(blobptr, len)
case C.SQLITE_TEXT:
len := C.sqlite3_value_bytes(val)
cstrptr := unsafe.Pointer(C.sqlite3_value_text(val))
src = C.GoBytes(cstrptr, len)
case C.SQLITE_NULL:
src = nil
}
err := convertAssign(&dest[i], src)
if err != nil {
return err
}
}
return nil
}
// Old populates dest with the row data to be replaced. This works similar to
// database/sql's Rows.Scan()
func (d *SQLitePreUpdateData) Old(dest ...any) error {
if d.Op == SQLITE_INSERT {
return errors.New("There is no old row for INSERT operations")
}
return d.row(dest, false)
}
// New populates dest with the replacement row data. This works similar to
// database/sql's Rows.Scan()
func (d *SQLitePreUpdateData) New(dest ...any) error {
if d.Op == SQLITE_DELETE {
return errors.New("There is no new row for DELETE operations")
}
return d.row(dest, true)
}

22
vendor/github.com/mattn/go-sqlite3/sqlite3_opt_preupdate_omit.go generated vendored
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@ -1,22 +0,0 @@
// Copyright (C) 2019 G.J.R. Timmer <gjr.timmer@gmail.com>.
// Copyright (C) 2018 segment.com <friends@segment.com>
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
//go:build !sqlite_preupdate_hook && cgo
// +build !sqlite_preupdate_hook,cgo
package sqlite3
// RegisterPreUpdateHook sets the pre-update hook for a connection.
//
// The callback is passed a SQLitePreUpdateData struct with the data for
// the update, as well as methods for fetching copies of impacted data.
//
// If there is an existing preupdate hook for this connection, it will be
// removed. If callback is nil the existing hook (if any) will be removed
// without creating a new one.
func (c *SQLiteConn) RegisterPreUpdateHook(callback func(SQLitePreUpdateData)) {
// NOOP
}

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