paulbsd/coronafana
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initial commit for coronafana

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Paul 2020-03-11 15:43:54 +01:00
commit fa64395c4d
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.gitignore vendored Normal file
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/coronafana
/*.ini

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Makefile Normal file
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# coronafana Makefile
GOCMD=go
GOBUILDCMD=${GOCMD} build
GOOPTIONS=-mod=vendor -ldflags="-s -w"
PACKRCMD=${GOPATH}/bin/packr2
RMCMD=rm
BINNAME=coronafana
SRCFILES=cmd/coronafana/*.go
all: build
build:
${GOBUILDCMD} ${GOOPTIONS} ${SRCFILES}
clean:
${RMCMD} -f ${BINNAME}

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README.md Normal file
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# coronafana
## Summary
coronafana is quick and dirty small program that fetch informations about covid19, and store them to MariaDB database
## Howto
### Build
```bash
make
```
### Sample config in coronafana.ini
```ini
[coronafana]
db_hostname="hostname"
db_name="db"
db_username="user"
db_password="pass"
corona_url="https://coronavirus.politologue.com/data/coronavirus/coronacsv.aspx?format=json"
```
### Run
```bash
./coronafana -configfile coronafana.ini
```
### TODO
- Yaml Config
- Code optimizations
## License
```text
Copyright (c) 2020, PaulBSD
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.
2. 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.
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.
The views and conclusions contained in the software and documentation are those
of the authors and should not be interpreted as representing official policies,
either expressed or implied, of this project.
```

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cmd/coronafana/coronafana.go Normal file
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package main
import (
"fmt"
"log"
"git.paulbsd.com/paulbsd/coronafana/src/config"
"git.paulbsd.com/paulbsd/coronafana/src/coronafana"
_ "github.com/go-sql-driver/mysql"
"github.com/jmoiron/sqlx"
)
func main() {
var cfg config.Config
var cr coronafana.Coronafana
cfg.GetConfig()
cr, err := coronafana.GetData(cfg)
if err != nil {
log.Fatalln(err)
}
db, err := sqlx.Connect("mysql",
fmt.Sprintf("%s:%s@tcp(%s)/%s",
cfg.DbUsername,
cfg.DbPassword,
cfg.DbHostname,
cfg.DbName))
if err != nil {
log.Fatalln(err)
}
_, err = db.Exec(cfg.DbSchemaGlobal)
if err != nil {
log.Fatalln(err)
}
_, err = db.Exec(cfg.DbSchemaPays)
if err != nil {
log.Fatalln(err)
}
err = cr.InsertData(cfg, *db)
if err != nil {
log.Fatalln(err)
}
}

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coronafana.ini.sample Normal file
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[coronafana]
db_hostname="hostname"
db_name="db"
db_username="user"
db_password="pass"
corona_url="https://coronavirus.politologue.com/data/coronavirus/coronacsv.aspx?format=json"

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go.mod Normal file
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module git.paulbsd.com/paulbsd/coronafana
go 1.14
require (
github.com/go-sql-driver/mysql v1.5.0
github.com/jmoiron/sqlx v1.2.0
github.com/lib/pq v1.1.1 // indirect
github.com/mattn/go-sqlite3 v2.0.1+incompatible // indirect
github.com/smartystreets/goconvey v1.6.4 // indirect
gopkg.in/ini.v1 v1.54.0
)

27
go.sum Normal file
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github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
github.com/go-sql-driver/mysql v1.5.0 h1:ozyZYNQW3x3HtqT1jira07DN2PArx2v7/mN66gGcHOs=
github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
github.com/jmoiron/sqlx v1.2.0 h1:41Ip0zITnmWNR/vHV+S4m+VoUivnWY5E4OJfLZjCJMA=
github.com/jmoiron/sqlx v1.2.0/go.mod h1:1FEQNm3xlJgrMD+FBdI9+xvCksHtbpVBBw5dYhBSsks=
github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
github.com/lib/pq v1.0.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/lib/pq v1.1.1 h1:sJZmqHoEaY7f+NPP8pgLB/WxulyR3fewgCM2qaSlBb4=
github.com/lib/pq v1.1.1/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
github.com/mattn/go-sqlite3 v2.0.1+incompatible h1:xQ15muvnzGBHpIpdrNi1DA5x0+TcBZzsIDwmw9uTHzw=
github.com/mattn/go-sqlite3 v2.0.1+incompatible/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
github.com/smartystreets/goconvey v1.6.4 h1:fv0U8FUIMPNf1L9lnHLvLhgicrIVChEkdzIKYqbNC9s=
github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
gopkg.in/ini.v1 v1.54.0 h1:oM5ElzbIi7gwLnNbPX2M25ED1vSAK3B6dex50eS/6Fs=
gopkg.in/ini.v1 v1.54.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=

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src/config/main.go Normal file
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package config
import (
"flag"
"git.paulbsd.com/paulbsd/coronafana/utils"
"gopkg.in/ini.v1"
)
// GetConfig fetch configuration
func (config *Config) GetConfig() (err error) {
var configfile string
flag.Usage = utils.Usage
flag.StringVar(&configfile, "configfile", "coronafana.ini", "config file to use with coronafana section")
flag.Parse()
cfg, err := ini.Load(configfile)
if err != nil {
return
}
coronafanasection := cfg.Section("coronafana")
config.DbHostname = coronafanasection.Key("db_hostname").MustString("localhost")
config.DbName = coronafanasection.Key("db_name").MustString("database")
config.DbUsername = coronafanasection.Key("db_username").MustString("username")
config.DbPassword = coronafanasection.Key("db_password").MustString("password")
config.DbTable = coronafanasection.Key("db_table").MustString("corona")
config.Corona.URL = coronafanasection.Key("corona_url").MustString("")
config.DbSchemaGlobal = "CREATE TABLE IF NOT EXISTS coronaglobaldata (`id` int(8) NOT NULL AUTO_INCREMENT, `date` datetime NOT NULL, `infection` int(8) DEFAULT NULL, `deces` int(8) DEFAULT NULL, `guerisons` varchar(50) DEFAULT NULL, `tauxdeces` float(10) DEFAULT NULL, `tauxguerison` float(10) DEFAULT NULL, `tauxinfection` float(10) DEFAULT NULL, PRIMARY KEY (`id`), UNIQUE KEY `date` (`date`) USING BTREE) ENGINE=InnoDB DEFAULT CHARSET=utf8;"
config.DbInsertGlobal = "INSERT IGNORE INTO coronaglobaldata (date, infection, deces, guerisons, tauxdeces, tauxguerison, tauxinfection) VALUES ('%s', %d, %d , %d, %g, %g, %g);"
config.DbSchemaPays = "CREATE TABLE IF NOT EXISTS coronapaysdata (`id` int(8) NOT NULL AUTO_INCREMENT, `date` datetime NOT NULL, `pays` varchar(50) NOT NULL, `infection` int(8) DEFAULT NULL, `deces` int(8) DEFAULT NULL, `guerisons` varchar(50) DEFAULT NULL, `tauxdeces` float(10) DEFAULT NULL, `tauxguerison` float(10) DEFAULT NULL, `tauxinfection` float(10) DEFAULT NULL, PRIMARY KEY (`id`), UNIQUE KEY `date` (`date`,`pays`) USING BTREE) ENGINE=InnoDB DEFAULT CHARSET=utf8;"
config.DbInsertPays = "INSERT IGNORE INTO coronapaysdata (date, pays, infection, deces, guerisons, tauxdeces, tauxguerison, tauxinfection) VALUES ('%s', '%s', %d, %d , %d, %g, %g, %g);"
return
}
// Config is the global config of g2g
type Config struct {
DbHostname string
DbName string
DbUsername string
DbPassword string
DbTable string
DbSchemaGlobal string
DbInsertGlobal string
DbSchemaPays string
DbInsertPays string
Corona struct {
URL string
}
}

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package coronafana
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"strings"
"git.paulbsd.com/paulbsd/coronafana/src/config"
"github.com/jmoiron/sqlx"
)
// GetData fetch data from open data portal
func GetData(cfg config.Config) (cr Coronafana, err error) {
var client http.Client
resp, err := client.Get(cfg.Corona.URL)
if err != nil {
return
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return
}
defer resp.Body.Close()
err = json.Unmarshal(body, &cr)
if err != nil {
return
}
return
}
// InsertData insert data to MySQL / MariaDB
func (cr Coronafana) InsertData(cfg config.Config, db sqlx.DB) (err error) {
tx := db.MustBegin()
for _, dt := range cr.GlobalData {
query := fmt.Sprintf(cfg.DbInsertGlobal, dt.Date, dt.Infection, dt.Deces, dt.Guerisons, dt.TauxDeces, dt.TauxGuerison, dt.TauxInfection)
tx.MustExec(query)
}
for _, dt := range cr.PaysData {
query := fmt.Sprintf(cfg.DbInsertPays, dt.Date, strings.Replace(dt.Pays, `'`, `\'`, -1), dt.Infection, dt.Deces, dt.Guerisons, dt.TauxDeces, dt.TauxGuerison, dt.TauxInfection)
tx.MustExec(query)
}
err = tx.Commit()
if err != nil {
return err
}
return
}
// Coronafana is the main struct
type Coronafana struct {
Source string `json:"Source"`
Information string `json:"Information"`
Utilisation string `json:"Utilisation"`
GlobalData []struct {
Date string `json:"Date" gorm:"primary_key"`
Infection int `json:"Infection"`
Deces int `json:"Deces"`
Guerisons int `json:"Guerisons"`
TauxDeces float64 `json:"TauxDeces"`
TauxGuerison float64 `json:"TauxGuerison"`
TauxInfection float64 `json:"TauxInfection"`
} `json:"GlobalData"`
PaysData []struct {
Date string `json:"Date" gorm:"primary_key"`
Pays string `json:"Pays"`
Infection int `json:"Infection"`
Deces int `json:"Deces"`
Guerisons int `json:"Guerisons"`
TauxDeces float64 `json:"TauxDeces"`
TauxGuerison float64 `json:"TauxGuerison"`
TauxInfection float64 `json:"TauxInfection"`
} `json:"PaysData"`
}

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utils/main.go Normal file
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package utils
import (
"flag"
"os"
)
// Usage displays possible arguments
func Usage() {
flag.PrintDefaults()
os.Exit(1)
}

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vendor/github.com/go-sql-driver/mysql/.gitignore generated vendored Normal file
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.DS_Store
.DS_Store?
._*
.Spotlight-V100
.Trashes
Icon?
ehthumbs.db
Thumbs.db
.idea

129
vendor/github.com/go-sql-driver/mysql/.travis.yml generated vendored Normal file
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sudo: false
language: go
go:
- 1.10.x
- 1.11.x
- 1.12.x
- 1.13.x
- master
before_install:
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
before_script:
- echo -e "[server]\ninnodb_log_file_size=256MB\ninnodb_buffer_pool_size=512MB\nmax_allowed_packet=16MB" | sudo tee -a /etc/mysql/my.cnf
- sudo service mysql restart
- .travis/wait_mysql.sh
- mysql -e 'create database gotest;'
matrix:
include:
- env: DB=MYSQL8
sudo: required
dist: trusty
go: 1.10.x
services:
- docker
before_install:
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
- docker pull mysql:8.0
- docker run -d -p 127.0.0.1:3307:3306 --name mysqld -e MYSQL_DATABASE=gotest -e MYSQL_USER=gotest -e MYSQL_PASSWORD=secret -e MYSQL_ROOT_PASSWORD=verysecret
mysql:8.0 --innodb_log_file_size=256MB --innodb_buffer_pool_size=512MB --max_allowed_packet=16MB --local-infile=1
- cp .travis/docker.cnf ~/.my.cnf
- .travis/wait_mysql.sh
before_script:
- export MYSQL_TEST_USER=gotest
- export MYSQL_TEST_PASS=secret
- export MYSQL_TEST_ADDR=127.0.0.1:3307
- export MYSQL_TEST_CONCURRENT=1
- env: DB=MYSQL57
sudo: required
dist: trusty
go: 1.10.x
services:
- docker
before_install:
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
- docker pull mysql:5.7
- docker run -d -p 127.0.0.1:3307:3306 --name mysqld -e MYSQL_DATABASE=gotest -e MYSQL_USER=gotest -e MYSQL_PASSWORD=secret -e MYSQL_ROOT_PASSWORD=verysecret
mysql:5.7 --innodb_log_file_size=256MB --innodb_buffer_pool_size=512MB --max_allowed_packet=16MB --local-infile=1
- cp .travis/docker.cnf ~/.my.cnf
- .travis/wait_mysql.sh
before_script:
- export MYSQL_TEST_USER=gotest
- export MYSQL_TEST_PASS=secret
- export MYSQL_TEST_ADDR=127.0.0.1:3307
- export MYSQL_TEST_CONCURRENT=1
- env: DB=MARIA55
sudo: required
dist: trusty
go: 1.10.x
services:
- docker
before_install:
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
- docker pull mariadb:5.5
- docker run -d -p 127.0.0.1:3307:3306 --name mysqld -e MYSQL_DATABASE=gotest -e MYSQL_USER=gotest -e MYSQL_PASSWORD=secret -e MYSQL_ROOT_PASSWORD=verysecret
mariadb:5.5 --innodb_log_file_size=256MB --innodb_buffer_pool_size=512MB --max_allowed_packet=16MB --local-infile=1
- cp .travis/docker.cnf ~/.my.cnf
- .travis/wait_mysql.sh
before_script:
- export MYSQL_TEST_USER=gotest
- export MYSQL_TEST_PASS=secret
- export MYSQL_TEST_ADDR=127.0.0.1:3307
- export MYSQL_TEST_CONCURRENT=1
- env: DB=MARIA10_1
sudo: required
dist: trusty
go: 1.10.x
services:
- docker
before_install:
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
- docker pull mariadb:10.1
- docker run -d -p 127.0.0.1:3307:3306 --name mysqld -e MYSQL_DATABASE=gotest -e MYSQL_USER=gotest -e MYSQL_PASSWORD=secret -e MYSQL_ROOT_PASSWORD=verysecret
mariadb:10.1 --innodb_log_file_size=256MB --innodb_buffer_pool_size=512MB --max_allowed_packet=16MB --local-infile=1
- cp .travis/docker.cnf ~/.my.cnf
- .travis/wait_mysql.sh
before_script:
- export MYSQL_TEST_USER=gotest
- export MYSQL_TEST_PASS=secret
- export MYSQL_TEST_ADDR=127.0.0.1:3307
- export MYSQL_TEST_CONCURRENT=1
- os: osx
osx_image: xcode10.1
addons:
homebrew:
packages:
- mysql
update: true
go: 1.12.x
before_install:
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
before_script:
- echo -e "[server]\ninnodb_log_file_size=256MB\ninnodb_buffer_pool_size=512MB\nmax_allowed_packet=16MB\nlocal_infile=1" >> /usr/local/etc/my.cnf
- mysql.server start
- mysql -uroot -e 'CREATE USER gotest IDENTIFIED BY "secret"'
- mysql -uroot -e 'GRANT ALL ON *.* TO gotest'
- mysql -uroot -e 'create database gotest;'
- export MYSQL_TEST_USER=gotest
- export MYSQL_TEST_PASS=secret
- export MYSQL_TEST_ADDR=127.0.0.1:3306
- export MYSQL_TEST_CONCURRENT=1
script:
- go test -v -covermode=count -coverprofile=coverage.out
- go vet ./...
- .travis/gofmt.sh
after_script:
- $HOME/gopath/bin/goveralls -coverprofile=coverage.out -service=travis-ci

105
vendor/github.com/go-sql-driver/mysql/AUTHORS generated vendored Normal file
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# 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>
Alexey Palazhchenko <alexey.palazhchenko at gmail.com>
Andrew Reid <andrew.reid at tixtrack.com>
Arne Hormann <arnehormann at gmail.com>
Asta Xie <xiemengjun at gmail.com>
Bulat Gaifullin <gaifullinbf at gmail.com>
Carlos Nieto <jose.carlos at menteslibres.net>
Chris Moos <chris at tech9computers.com>
Craig Wilson <craiggwilson at gmail.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 Shaw <evan at vendhq.com>
Frederick Mayle <frederickmayle at gmail.com>
Gustavo Kristic <gkristic at gmail.com>
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>
Jeff Hodges <jeff at somethingsimilar.com>
Jeffrey Charles <jeffreycharles at gmail.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>
Kevin Malachowski <kevin at chowski.com>
Kieron Woodhouse <kieron.woodhouse at infosum.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>
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>
Olivier Mengué <dolmen at cpan.org>
oscarzhao <oscarzhaosl at gmail.com>
Paul Bonser <misterpib at gmail.com>
Peter Schultz <peter.schultz at classmarkets.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>
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>
Thomas Wodarek <wodarekwebpage at gmail.com>
Tim Ruffles <timruffles at gmail.com>
Tom Jenkinson <tom at tjenkinson.me>
Vladimir Kovpak <cn007b at gmail.com>
Xiangyu Hu <xiangyu.hu at outlook.com>
Xiaobing Jiang <s7v7nislands at gmail.com>
Xiuming Chen <cc at cxm.cc>
Zhenye Xie <xiezhenye at gmail.com>
# Organizations
Barracuda Networks, Inc.
Counting Ltd.
DigitalOcean Inc.
Facebook Inc.
GitHub Inc.
Google Inc.
InfoSum Ltd.
Keybase Inc.
Multiplay Ltd.
Percona LLC
Pivotal Inc.
Stripe Inc.

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## 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 actived 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 splitted 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`
- Splitted 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 Whitelisting and `io.Reader` support
* Optional `time.Time` parsing
* Optional placeholder interpolation
## Requirements
* Go 1.10 or higher. We aim to support the 3 latest versions of Go.
* MySQL (4.1+), MariaDB, Percona Server, Google CloudSQL or Sphinx (2.2.3+)
---------------------------------------
## 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"
import _ "github.com/go-sql-driver/mysql"
db, err := sql.Open("mysql", "user:password@/dbname")
```
[Examples are available in our Wiki](https://github.com/go-sql-driver/mysql/wiki/Examples "Go-MySQL-Driver Examples").
### 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:
```
```
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 an 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 Whitelist for `LOAD DATA LOCAL INFILE` and allows *all* files.
[*Might be insecure!*](http://dev.mysql.com/doc/refman/5.7/en/load-data-local.html)
##### `allowCleartextPasswords`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowCleartextPasswords=true` allows using the [cleartext client side plugin](http://dev.mysql.com/doc/en/cleartext-authentication-plugin.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.
##### `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 failes. 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`).
Usage of the `charset` parameter is discouraged because it issues additional queries to the server.
Unless you need the fallback behavior, please use `collation` instead.
##### `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)).
##### `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 blacklisted 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`.
##### `maxAllowedPacket`
```
Type: decimal number
Default: 4194304
```
Max packet size allowed in bytes. The default value is 4 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. While this allows batch queries, it also greatly increases the risk of SQL injections. Only the result of the first query is returned, all other results are silently discarded.
When `multiStatements` is used, `?` parameters must only be used in the first statement.
##### `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"*.
##### 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'`
* [`tx_isolation=%27REPEATABLE-READ%27`](https://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html#sysvar_tx_isolation): `SET tx_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.
## `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 whitelisted by registering them with `mysql.RegisterLocalFile(filepath)` (recommended) or the Whitelist check must be deactivated by using the DSN parameter `allowAllFiles=true` ([*Might be insecure!*](http://dev.mysql.com/doc/refman/5.7/en/load-data-local.html)).
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).
Alternatively you can use the [`NullTime`](https://godoc.org/github.com/go-sql-driver/mysql#NullTime) type as the scan destination, which works with both `time.Time` and `string` / `[]byte`.
### Unicode support
Since version 1.5 Go-MySQL-Driver automatically uses the collation ` utf8mb4_general_ci` by default.
Other collations / charsets can be set using the [`collation`](#collation) DSN parameter.
Version 1.0 of the driver recommended adding `&charset=utf8` (alias for `SET NAMES utf8`) to the DSN to enable proper UTF-8 support. This is not necessary anymore. The [`collation`](#collation) parameter should be preferred to set another collation / charset than the default.
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/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 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/x509"
"encoding/pem"
"sync"
)
// 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 := ioutil.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 {
if len(password) == 0 {
return nil
}
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)
}
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
}
// 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
}
if mc.cfg.tls != nil || mc.cfg.Net == "unix" {
// 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
default:
errLog.Print("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://insidemysql.com/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.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
mc.writePacket(data)
// parse public key
if data, err = mc.readPacket(); err != nil {
return err
}
block, _ := pem.Decode(data[1:])
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.readResultOK()
default:
return ErrMalformPkt
}
default:
return ErrMalformPkt
}
case "sha256_password":
switch len(authData) {
case 0:
return nil // auth successful
default:
block, _ := pem.Decode(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.readResultOK()
}
default:
return nil // auth successful
}
return err
}

182
vendor/github.com/go-sql-driver/mysql/buffer.go generated vendored Normal file
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@ -0,0 +1,182 @@
// 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
}

265
vendor/github.com/go-sql-driver/mysql/collations.go generated vendored Normal file
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@ -0,0 +1,265 @@
// 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 binaryCollation = "binary"
// 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 blacklist 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,
}

54
vendor/github.com/go-sql-driver/mysql/conncheck.go generated vendored Normal file
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@ -0,0 +1,54 @@
// 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/.
// +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
}

17
vendor/github.com/go-sql-driver/mysql/conncheck_dummy.go generated vendored Normal file
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@ -0,0 +1,17 @@
// 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/.
// +build !linux,!darwin,!dragonfly,!freebsd,!netbsd,!openbsd,!solaris,!illumos
package mysql
import "net"
func connCheck(conn net.Conn) error {
return nil
}

651
vendor/github.com/go-sql-driver/mysql/connection.go generated vendored Normal file
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@ -0,0 +1,651 @@
// 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"
"io"
"net"
"strconv"
"strings"
"time"
)
type mysqlConn struct {
buf buffer
netConn net.Conn
rawConn net.Conn // underlying connection when netConn is TLS connection.
affectedRows uint64
insertId uint64
cfg *Config
maxAllowedPacket int
maxWriteSize int
writeTimeout time.Duration
flags clientFlag
status statusFlag
sequence uint8
parseTime bool
reset bool // set when the Go SQL package calls ResetSession
// 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
}
// Handles parameters set in DSN after the connection is established
func (mc *mysqlConn) handleParams() (err error) {
for param, val := range mc.cfg.Params {
switch param {
// Charset
case "charset":
charsets := strings.Split(val, ",")
for i := range charsets {
// ignore errors here - a charset may not exist
err = mc.exec("SET NAMES " + charsets[i])
if err == nil {
break
}
}
if err != nil {
return
}
// System Vars
default:
err = mc.exec("SET " + param + "=" + val + "")
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.IsSet() {
errLog.Print(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.IsSet() {
err = mc.writeCommandPacket(comQuit)
}
mc.cleanup()
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.TrySet(true) {
return
}
// Makes cleanup idempotent
close(mc.closech)
if mc.netConn == nil {
return
}
if err := mc.netConn.Close(); err != nil {
errLog.Print(err)
}
}
func (mc *mysqlConn) error() error {
if mc.closed.IsSet() {
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.IsSet() {
errLog.Print(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.
errLog.Print(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
errLog.Print(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 {
v := v.In(mc.cfg.Loc)
v = v.Add(time.Nanosecond * 500) // To round under microsecond
year := v.Year()
year100 := year / 100
year1 := year % 100
month := v.Month()
day := v.Day()
hour := v.Hour()
minute := v.Minute()
second := v.Second()
micro := v.Nanosecond() / 1000
buf = append(buf, []byte{
'\'',
digits10[year100], digits01[year100],
digits10[year1], digits01[year1],
'-',
digits10[month], digits01[month],
'-',
digits10[day], digits01[day],
' ',
digits10[hour], digits01[hour],
':',
digits10[minute], digits01[minute],
':',
digits10[second], digits01[second],
}...)
if micro != 0 {
micro10000 := micro / 10000
micro100 := micro / 100 % 100
micro1 := micro % 100
buf = append(buf, []byte{
'.',
digits10[micro10000], digits01[micro10000],
digits10[micro100], digits01[micro100],
digits10[micro1], digits01[micro1],
}...)
}
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.IsSet() {
errLog.Print(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
}
mc.affectedRows = 0
mc.insertId = 0
err := mc.exec(query)
if err == nil {
return &mysqlResult{
affectedRows: int64(mc.affectedRows),
insertId: int64(mc.insertId),
}, err
}
return nil, mc.markBadConn(err)
}
// Internal function to execute commands
func (mc *mysqlConn) exec(query string) error {
// Send command
if err := mc.writeCommandPacketStr(comQuery, query); err != nil {
return mc.markBadConn(err)
}
// Read Result
resLen, err := mc.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 mc.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) {
if mc.closed.IsSet() {
errLog.Print(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 = mc.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
if err := mc.writeCommandPacketStr(comQuery, "SELECT @@"+name); err != nil {
return nil, err
}
// Read Result
resLen, err := mc.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.IsSet() {
errLog.Print(ErrInvalidConn)
return driver.ErrBadConn
}
if err = mc.watchCancel(ctx); err != nil {
return
}
defer mc.finish()
if err = mc.writeCommandPacket(comPing); err != nil {
return mc.markBadConn(err)
}
return mc.readResultOK()
}
// BeginTx implements driver.ConnBeginTx interface
func (mc *mysqlConn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
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.IsSet() {
return driver.ErrBadConn
}
mc.reset = true
return nil
}

146
vendor/github.com/go-sql-driver/mysql/connector.go generated vendored Normal file
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// 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"
)
type connector struct {
cfg *Config // immutable private copy.
}
// 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
// New mysqlConn
mc := &mysqlConn{
maxAllowedPacket: maxPacketSize,
maxWriteSize: maxPacketSize - 1,
closech: make(chan struct{}),
cfg: c.cfg,
}
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
}
// Enable TCP Keepalives on TCP connections
if tc, ok := mc.netConn.(*net.TCPConn); ok {
if err := tc.SetKeepAlive(true); err != nil {
// Don't send COM_QUIT before handshake.
mc.netConn.Close()
mc.netConn = nil
return nil, 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
errLog.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{}
}

174
vendor/github.com/go-sql-driver/mysql/const.go generated vendored Normal file
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// 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
const (
defaultAuthPlugin = "mysql_native_password"
defaultMaxAllowedPacket = 4 << 20 // 4 MiB
minProtocolVersion = 10
maxPacketSize = 1<<24 - 1
timeFormat = "2006-01-02 15:04:05.999999"
)
// 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
)

107
vendor/github.com/go-sql-driver/mysql/driver.go generated vendored Normal file
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// 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
}
// 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 := &connector{
cfg: cfg,
}
return c.Connect(context.Background())
}
func init() {
sql.Register("mysql", &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 &connector{cfg: 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 &connector{
cfg: cfg,
}, nil
}

560
vendor/github.com/go-sql-driver/mysql/dsn.go generated vendored Normal file
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@ -0,0 +1,560 @@
// 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"
"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 {
User string // Username
Passwd string // Password (requires User)
Net string // Network type
Addr string // Network address (requires Net)
DBName string // Database name
Params map[string]string // Connection parameters
Collation string // Connection collation
Loc *time.Location // Location for time.Time values
MaxAllowedPacket int // Max packet size allowed
ServerPubKey string // Server public key name
pubKey *rsa.PublicKey // Server public key
TLSConfig string // TLS configuration name
tls *tls.Config // TLS configuration
Timeout time.Duration // Dial timeout
ReadTimeout time.Duration // I/O read timeout
WriteTimeout time.Duration // I/O write timeout
AllowAllFiles bool // Allow all files to be used with LOAD DATA LOCAL INFILE
AllowCleartextPasswords bool // Allows the cleartext client side plugin
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
}
// NewConfig creates a new Config and sets default values.
func NewConfig() *Config {
return &Config{
Collation: defaultCollation,
Loc: time.UTC,
MaxAllowedPacket: defaultMaxAllowedPacket,
AllowNativePasswords: true,
CheckConnLiveness: true,
}
}
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 && 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)
}
switch cfg.TLSConfig {
case "false", "":
// don't set anything
case "true":
cfg.tls = &tls.Config{}
case "skip-verify", "preferred":
cfg.tls = &tls.Config{InsecureSkipVerify: 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)
}
}
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.
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(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.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 != defaultCollation && len(col) > 0 {
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.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
}
}
cfg.DBName = dsn[i+1 : j]
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, "&") {
param := strings.SplitN(v, "=", 2)
if len(param) != 2 {
continue
}
// cfg params
switch value := param[1]; param[0] {
// Disable INFILE whitelist / 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)
}
// 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
break
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)
}
// 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
}
default:
// lazy init
if cfg.Params == nil {
cfg.Params = make(map[string]string)
}
if cfg.Params[param[0]], 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
}

65
vendor/github.com/go-sql-driver/mysql/errors.go generated vendored Normal file
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// 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 'max_allowed_packet' variable on the server")
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 errLog = 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 ...interface{})
}
// SetLogger is used to set the logger for critical errors.
// The initial logger is os.Stderr.
func SetLogger(logger Logger) error {
if logger == nil {
return errors.New("logger is nil")
}
errLog = logger
return nil
}
// MySQLError is an error type which represents a single MySQL error
type MySQLError struct {
Number uint16
Message string
}
func (me *MySQLError) Error() string {
return fmt.Sprintf("Error %d: %s", me.Number, me.Message)
}

194
vendor/github.com/go-sql-driver/mysql/fields.go generated vendored Normal file
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// 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 != collations[binaryCollation] {
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:
return "MEDIUMINT"
case fieldTypeJSON:
return "JSON"
case fieldTypeLong:
return "INT"
case fieldTypeLongBLOB:
if mf.charSet != collations[binaryCollation] {
return "LONGTEXT"
}
return "LONGBLOB"
case fieldTypeLongLong:
return "BIGINT"
case fieldTypeMediumBLOB:
if mf.charSet != collations[binaryCollation] {
return "MEDIUMTEXT"
}
return "MEDIUMBLOB"
case fieldTypeNewDate:
return "DATE"
case fieldTypeNewDecimal:
return "DECIMAL"
case fieldTypeNULL:
return "NULL"
case fieldTypeSet:
return "SET"
case fieldTypeShort:
return "SMALLINT"
case fieldTypeString:
if mf.charSet == collations[binaryCollation] {
return "BINARY"
}
return "CHAR"
case fieldTypeTime:
return "TIME"
case fieldTypeTimestamp:
return "TIMESTAMP"
case fieldTypeTiny:
return "TINYINT"
case fieldTypeTinyBLOB:
if mf.charSet != collations[binaryCollation] {
return "TINYTEXT"
}
return "TINYBLOB"
case fieldTypeVarChar:
if mf.charSet == collations[binaryCollation] {
return "VARBINARY"
}
return "VARCHAR"
case fieldTypeVarString:
if mf.charSet == collations[binaryCollation] {
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(NullTime{})
scanTypeUint8 = reflect.TypeOf(uint8(0))
scanTypeUint16 = reflect.TypeOf(uint16(0))
scanTypeUint32 = reflect.TypeOf(uint32(0))
scanTypeUint64 = reflect.TypeOf(uint64(0))
scanTypeRawBytes = reflect.TypeOf(sql.RawBytes{})
scanTypeUnknown = reflect.TypeOf(new(interface{}))
)
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 fieldTypeDecimal, fieldTypeNewDecimal, fieldTypeVarChar,
fieldTypeBit, fieldTypeEnum, fieldTypeSet, fieldTypeTinyBLOB,
fieldTypeMediumBLOB, fieldTypeLongBLOB, fieldTypeBLOB,
fieldTypeVarString, fieldTypeString, fieldTypeGeometry, fieldTypeJSON,
fieldTypeTime:
return scanTypeRawBytes
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
}
}

3
vendor/github.com/go-sql-driver/mysql/go.mod generated vendored Normal file
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module github.com/go-sql-driver/mysql
go 1.10

182
vendor/github.com/go-sql-driver/mysql/infile.go generated vendored Normal file
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// 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 whitelist,
// 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 whitelist.
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
}
}
func (mc *mysqlConn) handleInFileRequest(name string) (err error) {
var rdr io.Reader
var data []byte
packetSize := 16 * 1024 // 16KB is small enough for disk readahead and large enough for TCP
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.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.writePacket(data[:4]); ioErr != nil {
return ioErr
}
// read OK packet
if err == nil {
return mc.readResultOK()
}
mc.readPacket()
return err
}

50
vendor/github.com/go-sql-driver/mysql/nulltime.go generated vendored Normal file
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// 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/driver"
"fmt"
"time"
)
// 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 interface{}) (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(string(v), time.UTC)
nt.Valid = (err == nil)
return
case string:
nt.Time, err = parseDateTime(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
}

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vendor/github.com/go-sql-driver/mysql/nulltime_go113.go generated vendored Normal file
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// 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/.
// +build go1.13
package mysql
import (
"database/sql"
)
// 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
type NullTime sql.NullTime

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vendor/github.com/go-sql-driver/mysql/nulltime_legacy.go generated vendored Normal file
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// 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/.
// +build !go1.13
package mysql
import (
"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
type NullTime struct {
Time time.Time
Valid bool // Valid is true if Time is not NULL
}

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vendor/github.com/go-sql-driver/mysql/packets.go generated vendored Normal file
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22
vendor/github.com/go-sql-driver/mysql/result.go generated vendored Normal file
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// 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 mysqlResult struct {
affectedRows int64
insertId int64
}
func (res *mysqlResult) LastInsertId() (int64, error) {
return res.insertId, nil
}
func (res *mysqlResult) RowsAffected() (int64, error) {
return res.affectedRows, nil
}

223
vendor/github.com/go-sql-driver/mysql/rows.go generated vendored Normal file
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// 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 {
if err = mc.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{}
return rows.mc.readResultSetHeaderPacket()
}
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
}

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vendor/github.com/go-sql-driver/mysql/statement.go generated vendored Normal file
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// 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"
"fmt"
"io"
"reflect"
)
type mysqlStmt struct {
mc *mysqlConn
id uint32
paramCount int
}
func (stmt *mysqlStmt) Close() error {
if stmt.mc == nil || stmt.mc.closed.IsSet() {
// 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) Exec(args []driver.Value) (driver.Result, error) {
if stmt.mc.closed.IsSet() {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
// Send command
err := stmt.writeExecutePacket(args)
if err != nil {
return nil, stmt.mc.markBadConn(err)
}
mc := stmt.mc
mc.affectedRows = 0
mc.insertId = 0
// Read Result
resLen, err := mc.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 := mc.discardResults(); err != nil {
return nil, err
}
return &mysqlResult{
affectedRows: int64(mc.affectedRows),
insertId: int64(mc.insertId),
}, 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.IsSet() {
errLog.Print(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
resLen, err := mc.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
}
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 interface{}) (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 nil, fmt.Errorf("non-Value type %T returned from Value", sv)
}
return sv, nil
}
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:
ek := rv.Type().Elem().Kind()
if ek == reflect.Uint8 {
return rv.Bytes(), nil
}
return nil, fmt.Errorf("unsupported type %T, a slice of %s", v, ek)
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 Normal file
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// 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.IsSet() {
return ErrInvalidConn
}
err = tx.mc.exec("COMMIT")
tx.mc = nil
return
}
func (tx *mysqlTx) Rollback() (err error) {
if tx.mc == nil || tx.mc.closed.IsSet() {
return ErrInvalidConn
}
err = tx.mc.exec("ROLLBACK")
tx.mc = nil
return
}

701
vendor/github.com/go-sql-driver/mysql/utils.go generated vendored Normal file
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// 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 := ioutil.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(str string, loc *time.Location) (t time.Time, err error) {
base := "0000-00-00 00:00:00.0000000"
switch len(str) {
case 10, 19, 21, 22, 23, 24, 25, 26: // up to "YYYY-MM-DD HH:MM:SS.MMMMMM"
if str == base[:len(str)] {
return
}
t, err = time.Parse(timeFormat[:len(str)], str)
default:
err = fmt.Errorf("invalid time string: %s", str)
return
}
// Adjust location
if err == nil && loc != time.UTC {
y, mo, d := t.Date()
h, mi, s := t.Clock()
t, err = time.Date(y, mo, d, h, mi, s, t.Nanosecond(), loc), nil
}
return
}
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)
}
// 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, wheter 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))
}
// 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] = '\\'
buf[pos+1] = '0'
pos += 2
case '\n':
buf[pos] = '\\'
buf[pos+1] = 'n'
pos += 2
case '\r':
buf[pos] = '\\'
buf[pos+1] = 'r'
pos += 2
case '\x1a':
buf[pos] = '\\'
buf[pos+1] = 'Z'
pos += 2
case '\'':
buf[pos] = '\\'
buf[pos+1] = '\''
pos += 2
case '"':
buf[pos] = '\\'
buf[pos+1] = '"'
pos += 2
case '\\':
buf[pos] = '\\'
buf[pos+1] = '\\'
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] = '\\'
buf[pos+1] = '0'
pos += 2
case '\n':
buf[pos] = '\\'
buf[pos+1] = 'n'
pos += 2
case '\r':
buf[pos] = '\\'
buf[pos+1] = 'r'
pos += 2
case '\x1a':
buf[pos] = '\\'
buf[pos+1] = 'Z'
pos += 2
case '\'':
buf[pos] = '\\'
buf[pos+1] = '\''
pos += 2
case '"':
buf[pos] = '\\'
buf[pos+1] = '"'
pos += 2
case '\\':
buf[pos] = '\\'
buf[pos+1] = '\\'
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] = '\''
buf[pos+1] = '\''
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] = '\''
buf[pos+1] = '\''
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() {}
// atomicBool is a wrapper around uint32 for usage as a boolean value with
// atomic access.
type atomicBool struct {
_noCopy noCopy
value uint32
}
// IsSet returns whether the current boolean value is true
func (ab *atomicBool) IsSet() bool {
return atomic.LoadUint32(&ab.value) > 0
}
// Set sets the value of the bool regardless of the previous value
func (ab *atomicBool) Set(value bool) {
if value {
atomic.StoreUint32(&ab.value, 1)
} else {
atomic.StoreUint32(&ab.value, 0)
}
}
// TrySet sets the value of the bool and returns whether the value changed
func (ab *atomicBool) TrySet(value bool) bool {
if value {
return atomic.SwapUint32(&ab.value, 1) == 0
}
return atomic.SwapUint32(&ab.value, 0) > 0
}
// atomicError is a wrapper for atomically accessed error values
type atomicError struct {
_noCopy 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)
}
}

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# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
tags
environ

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# vim: ft=yaml sw=2 ts=2
language: go
# enable database services
services:
- mysql
- postgresql
# create test database
before_install:
- mysql -e 'CREATE DATABASE IF NOT EXISTS sqlxtest;'
- psql -c 'create database sqlxtest;' -U postgres
- go get github.com/mattn/goveralls
- export SQLX_MYSQL_DSN="travis:@/sqlxtest?parseTime=true"
- export SQLX_POSTGRES_DSN="postgres://postgres:@localhost/sqlxtest?sslmode=disable"
- export SQLX_SQLITE_DSN="$HOME/sqlxtest.db"
# go versions to test
go:
- "1.8"
- "1.9"
- "1.10.x"
# run tests w/ coverage
script:
- travis_retry $GOPATH/bin/goveralls -service=travis-ci

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Copyright (c) 2013, Jason Moiron
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.

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# sqlx
[![Build Status](https://travis-ci.org/jmoiron/sqlx.svg?branch=master)](https://travis-ci.org/jmoiron/sqlx) [![Coverage Status](https://coveralls.io/repos/github/jmoiron/sqlx/badge.svg?branch=master)](https://coveralls.io/github/jmoiron/sqlx?branch=master) [![Godoc](http://img.shields.io/badge/godoc-reference-blue.svg?style=flat)](https://godoc.org/github.com/jmoiron/sqlx) [![license](http://img.shields.io/badge/license-MIT-red.svg?style=flat)](https://raw.githubusercontent.com/jmoiron/sqlx/master/LICENSE)
sqlx is a library which provides a set of extensions on go's standard
`database/sql` library. The sqlx versions of `sql.DB`, `sql.TX`, `sql.Stmt`,
et al. all leave the underlying interfaces untouched, so that their interfaces
are a superset on the standard ones. This makes it relatively painless to
integrate existing codebases using database/sql with sqlx.
Major additional concepts are:
* Marshal rows into structs (with embedded struct support), maps, and slices
* Named parameter support including prepared statements
* `Get` and `Select` to go quickly from query to struct/slice
In addition to the [godoc API documentation](http://godoc.org/github.com/jmoiron/sqlx),
there is also some [standard documentation](http://jmoiron.github.io/sqlx/) that
explains how to use `database/sql` along with sqlx.
## Recent Changes
* The [introduction](https://github.com/jmoiron/sqlx/pull/387) of `sql.ColumnType` sets the required minimum Go version to 1.8.
* sqlx/types.JsonText has been renamed to JSONText to follow Go naming conventions.
This breaks backwards compatibility, but it's in a way that is trivially fixable
(`s/JsonText/JSONText/g`). The `types` package is both experimental and not in
active development currently.
* Using Go 1.6 and below with `types.JSONText` and `types.GzippedText` can be _potentially unsafe_, **especially** when used with common auto-scan sqlx idioms like `Select` and `Get`. See [golang bug #13905](https://github.com/golang/go/issues/13905).
### Backwards Compatibility
There is no Go1-like promise of absolute stability, but I take the issue seriously
and will maintain the library in a compatible state unless vital bugs prevent me
from doing so. Since [#59](https://github.com/jmoiron/sqlx/issues/59) and
[#60](https://github.com/jmoiron/sqlx/issues/60) necessitated breaking behavior,
a wider API cleanup was done at the time of fixing. It's possible this will happen
in future; if it does, a git tag will be provided for users requiring the old
behavior to continue to use it until such a time as they can migrate.
## install
go get github.com/jmoiron/sqlx
## issues
Row headers can be ambiguous (`SELECT 1 AS a, 2 AS a`), and the result of
`Columns()` does not fully qualify column names in queries like:
```sql
SELECT a.id, a.name, b.id, b.name FROM foos AS a JOIN foos AS b ON a.parent = b.id;
```
making a struct or map destination ambiguous. Use `AS` in your queries
to give columns distinct names, `rows.Scan` to scan them manually, or
`SliceScan` to get a slice of results.
## usage
Below is an example which shows some common use cases for sqlx. Check
[sqlx_test.go](https://github.com/jmoiron/sqlx/blob/master/sqlx_test.go) for more
usage.
```go
package main
import (
"database/sql"
"fmt"
"log"
_ "github.com/lib/pq"
"github.com/jmoiron/sqlx"
)
var schema = `
CREATE TABLE person (
first_name text,
last_name text,
email text
);
CREATE TABLE place (
country text,
city text NULL,
telcode integer
)`
type Person struct {
FirstName string `db:"first_name"`
LastName string `db:"last_name"`
Email string
}
type Place struct {
Country string
City sql.NullString
TelCode int
}
func main() {
// this Pings the database trying to connect, panics on error
// use sqlx.Open() for sql.Open() semantics
db, err := sqlx.Connect("postgres", "user=foo dbname=bar sslmode=disable")
if err != nil {
log.Fatalln(err)
}
// exec the schema or fail; multi-statement Exec behavior varies between
// database drivers; pq will exec them all, sqlite3 won't, ymmv
db.MustExec(schema)
tx := db.MustBegin()
tx.MustExec("INSERT INTO person (first_name, last_name, email) VALUES ($1, $2, $3)", "Jason", "Moiron", "jmoiron@jmoiron.net")
tx.MustExec("INSERT INTO person (first_name, last_name, email) VALUES ($1, $2, $3)", "John", "Doe", "johndoeDNE@gmail.net")
tx.MustExec("INSERT INTO place (country, city, telcode) VALUES ($1, $2, $3)", "United States", "New York", "1")
tx.MustExec("INSERT INTO place (country, telcode) VALUES ($1, $2)", "Hong Kong", "852")
tx.MustExec("INSERT INTO place (country, telcode) VALUES ($1, $2)", "Singapore", "65")
// Named queries can use structs, so if you have an existing struct (i.e. person := &Person{}) that you have populated, you can pass it in as &person
tx.NamedExec("INSERT INTO person (first_name, last_name, email) VALUES (:first_name, :last_name, :email)", &Person{"Jane", "Citizen", "jane.citzen@example.com"})
tx.Commit()
// Query the database, storing results in a []Person (wrapped in []interface{})
people := []Person{}
db.Select(&people, "SELECT * FROM person ORDER BY first_name ASC")
jason, john := people[0], people[1]
fmt.Printf("%#v\n%#v", jason, john)
// Person{FirstName:"Jason", LastName:"Moiron", Email:"jmoiron@jmoiron.net"}
// Person{FirstName:"John", LastName:"Doe", Email:"johndoeDNE@gmail.net"}
// You can also get a single result, a la QueryRow
jason = Person{}
err = db.Get(&jason, "SELECT * FROM person WHERE first_name=$1", "Jason")
fmt.Printf("%#v\n", jason)
// Person{FirstName:"Jason", LastName:"Moiron", Email:"jmoiron@jmoiron.net"}
// if you have null fields and use SELECT *, you must use sql.Null* in your struct
places := []Place{}
err = db.Select(&places, "SELECT * FROM place ORDER BY telcode ASC")
if err != nil {
fmt.Println(err)
return
}
usa, singsing, honkers := places[0], places[1], places[2]
fmt.Printf("%#v\n%#v\n%#v\n", usa, singsing, honkers)
// Place{Country:"United States", City:sql.NullString{String:"New York", Valid:true}, TelCode:1}
// Place{Country:"Singapore", City:sql.NullString{String:"", Valid:false}, TelCode:65}
// Place{Country:"Hong Kong", City:sql.NullString{String:"", Valid:false}, TelCode:852}
// Loop through rows using only one struct
place := Place{}
rows, err := db.Queryx("SELECT * FROM place")
for rows.Next() {
err := rows.StructScan(&place)
if err != nil {
log.Fatalln(err)
}
fmt.Printf("%#v\n", place)
}
// Place{Country:"United States", City:sql.NullString{String:"New York", Valid:true}, TelCode:1}
// Place{Country:"Hong Kong", City:sql.NullString{String:"", Valid:false}, TelCode:852}
// Place{Country:"Singapore", City:sql.NullString{String:"", Valid:false}, TelCode:65}
// Named queries, using `:name` as the bindvar. Automatic bindvar support
// which takes into account the dbtype based on the driverName on sqlx.Open/Connect
_, err = db.NamedExec(`INSERT INTO person (first_name,last_name,email) VALUES (:first,:last,:email)`,
map[string]interface{}{
"first": "Bin",
"last": "Smuth",
"email": "bensmith@allblacks.nz",
})
// Selects Mr. Smith from the database
rows, err = db.NamedQuery(`SELECT * FROM person WHERE first_name=:fn`, map[string]interface{}{"fn": "Bin"})
// Named queries can also use structs. Their bind names follow the same rules
// as the name -> db mapping, so struct fields are lowercased and the `db` tag
// is taken into consideration.
rows, err = db.NamedQuery(`SELECT * FROM person WHERE first_name=:first_name`, jason)
}
```

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package sqlx
import (
"bytes"
"database/sql/driver"
"errors"
"reflect"
"strconv"
"strings"
"github.com/jmoiron/sqlx/reflectx"
)
// Bindvar types supported by Rebind, BindMap and BindStruct.
const (
UNKNOWN = iota
QUESTION
DOLLAR
NAMED
AT
)
// BindType returns the bindtype for a given database given a drivername.
func BindType(driverName string) int {
switch driverName {
case "postgres", "pgx", "pq-timeouts", "cloudsqlpostgres":
return DOLLAR
case "mysql":
return QUESTION
case "sqlite3":
return QUESTION
case "oci8", "ora", "goracle":
return NAMED
case "sqlserver":
return AT
}
return UNKNOWN
}
// FIXME: this should be able to be tolerant of escaped ?'s in queries without
// losing much speed, and should be to avoid confusion.
// Rebind a query from the default bindtype (QUESTION) to the target bindtype.
func Rebind(bindType int, query string) string {
switch bindType {
case QUESTION, UNKNOWN:
return query
}
// Add space enough for 10 params before we have to allocate
rqb := make([]byte, 0, len(query)+10)
var i, j int
for i = strings.Index(query, "?"); i != -1; i = strings.Index(query, "?") {
rqb = append(rqb, query[:i]...)
switch bindType {
case DOLLAR:
rqb = append(rqb, '$')
case NAMED:
rqb = append(rqb, ':', 'a', 'r', 'g')
case AT:
rqb = append(rqb, '@', 'p')
}
j++
rqb = strconv.AppendInt(rqb, int64(j), 10)
query = query[i+1:]
}
return string(append(rqb, query...))
}
// Experimental implementation of Rebind which uses a bytes.Buffer. The code is
// much simpler and should be more resistant to odd unicode, but it is twice as
// slow. Kept here for benchmarking purposes and to possibly replace Rebind if
// problems arise with its somewhat naive handling of unicode.
func rebindBuff(bindType int, query string) string {
if bindType != DOLLAR {
return query
}
b := make([]byte, 0, len(query))
rqb := bytes.NewBuffer(b)
j := 1
for _, r := range query {
if r == '?' {
rqb.WriteRune('$')
rqb.WriteString(strconv.Itoa(j))
j++
} else {
rqb.WriteRune(r)
}
}
return rqb.String()
}
// In expands slice values in args, returning the modified query string
// and a new arg list that can be executed by a database. The `query` should
// use the `?` bindVar. The return value uses the `?` bindVar.
func In(query string, args ...interface{}) (string, []interface{}, error) {
// argMeta stores reflect.Value and length for slices and
// the value itself for non-slice arguments
type argMeta struct {
v reflect.Value
i interface{}
length int
}
var flatArgsCount int
var anySlices bool
meta := make([]argMeta, len(args))
for i, arg := range args {
if a, ok := arg.(driver.Valuer); ok {
arg, _ = a.Value()
}
v := reflect.ValueOf(arg)
t := reflectx.Deref(v.Type())
// []byte is a driver.Value type so it should not be expanded
if t.Kind() == reflect.Slice && t != reflect.TypeOf([]byte{}) {
meta[i].length = v.Len()
meta[i].v = v
anySlices = true
flatArgsCount += meta[i].length
if meta[i].length == 0 {
return "", nil, errors.New("empty slice passed to 'in' query")
}
} else {
meta[i].i = arg
flatArgsCount++
}
}
// don't do any parsing if there aren't any slices; note that this means
// some errors that we might have caught below will not be returned.
if !anySlices {
return query, args, nil
}
newArgs := make([]interface{}, 0, flatArgsCount)
buf := make([]byte, 0, len(query)+len(", ?")*flatArgsCount)
var arg, offset int
for i := strings.IndexByte(query[offset:], '?'); i != -1; i = strings.IndexByte(query[offset:], '?') {
if arg >= len(meta) {
// if an argument wasn't passed, lets return an error; this is
// not actually how database/sql Exec/Query works, but since we are
// creating an argument list programmatically, we want to be able
// to catch these programmer errors earlier.
return "", nil, errors.New("number of bindVars exceeds arguments")
}
argMeta := meta[arg]
arg++
// not a slice, continue.
// our questionmark will either be written before the next expansion
// of a slice or after the loop when writing the rest of the query
if argMeta.length == 0 {
offset = offset + i + 1
newArgs = append(newArgs, argMeta.i)
continue
}
// write everything up to and including our ? character
buf = append(buf, query[:offset+i+1]...)
for si := 1; si < argMeta.length; si++ {
buf = append(buf, ", ?"...)
}
newArgs = appendReflectSlice(newArgs, argMeta.v, argMeta.length)
// slice the query and reset the offset. this avoids some bookkeeping for
// the write after the loop
query = query[offset+i+1:]
offset = 0
}
buf = append(buf, query...)
if arg < len(meta) {
return "", nil, errors.New("number of bindVars less than number arguments")
}
return string(buf), newArgs, nil
}
func appendReflectSlice(args []interface{}, v reflect.Value, vlen int) []interface{} {
switch val := v.Interface().(type) {
case []interface{}:
args = append(args, val...)
case []int:
for i := range val {
args = append(args, val[i])
}
case []string:
for i := range val {
args = append(args, val[i])
}
default:
for si := 0; si < vlen; si++ {
args = append(args, v.Index(si).Interface())
}
}
return args
}

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// Package sqlx provides general purpose extensions to database/sql.
//
// It is intended to seamlessly wrap database/sql and provide convenience
// methods which are useful in the development of database driven applications.
// None of the underlying database/sql methods are changed. Instead all extended
// behavior is implemented through new methods defined on wrapper types.
//
// Additions include scanning into structs, named query support, rebinding
// queries for different drivers, convenient shorthands for common error handling
// and more.
//
package sqlx

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vendor/github.com/jmoiron/sqlx/go.mod generated vendored Normal file
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module github.com/jmoiron/sqlx
require (
github.com/go-sql-driver/mysql v1.4.0
github.com/lib/pq v1.0.0
github.com/mattn/go-sqlite3 v1.9.0
)

6
vendor/github.com/jmoiron/sqlx/go.sum generated vendored Normal file
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@ -0,0 +1,6 @@
github.com/go-sql-driver/mysql v1.4.0 h1:7LxgVwFb2hIQtMm87NdgAVfXjnt4OePseqT1tKx+opk=
github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
github.com/lib/pq v1.0.0 h1:X5PMW56eZitiTeO7tKzZxFCSpbFZJtkMMooicw2us9A=
github.com/lib/pq v1.0.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/mattn/go-sqlite3 v1.9.0 h1:pDRiWfl+++eC2FEFRy6jXmQlvp4Yh3z1MJKg4UeYM/4=
github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=

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package sqlx
// Named Query Support
//
// * BindMap - bind query bindvars to map/struct args
// * NamedExec, NamedQuery - named query w/ struct or map
// * NamedStmt - a pre-compiled named query which is a prepared statement
//
// Internal Interfaces:
//
// * compileNamedQuery - rebind a named query, returning a query and list of names
// * bindArgs, bindMapArgs, bindAnyArgs - given a list of names, return an arglist
//
import (
"database/sql"
"errors"
"fmt"
"reflect"
"strconv"
"unicode"
"github.com/jmoiron/sqlx/reflectx"
)
// NamedStmt is a prepared statement that executes named queries. Prepare it
// how you would execute a NamedQuery, but pass in a struct or map when executing.
type NamedStmt struct {
Params []string
QueryString string
Stmt *Stmt
}
// Close closes the named statement.
func (n *NamedStmt) Close() error {
return n.Stmt.Close()
}
// Exec executes a named statement using the struct passed.
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) Exec(arg interface{}) (sql.Result, error) {
args, err := bindAnyArgs(n.Params, arg, n.Stmt.Mapper)
if err != nil {
return *new(sql.Result), err
}
return n.Stmt.Exec(args...)
}
// Query executes a named statement using the struct argument, returning rows.
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) Query(arg interface{}) (*sql.Rows, error) {
args, err := bindAnyArgs(n.Params, arg, n.Stmt.Mapper)
if err != nil {
return nil, err
}
return n.Stmt.Query(args...)
}
// QueryRow executes a named statement against the database. Because sqlx cannot
// create a *sql.Row with an error condition pre-set for binding errors, sqlx
// returns a *sqlx.Row instead.
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) QueryRow(arg interface{}) *Row {
args, err := bindAnyArgs(n.Params, arg, n.Stmt.Mapper)
if err != nil {
return &Row{err: err}
}
return n.Stmt.QueryRowx(args...)
}
// MustExec execs a NamedStmt, panicing on error
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) MustExec(arg interface{}) sql.Result {
res, err := n.Exec(arg)
if err != nil {
panic(err)
}
return res
}
// Queryx using this NamedStmt
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) Queryx(arg interface{}) (*Rows, error) {
r, err := n.Query(arg)
if err != nil {
return nil, err
}
return &Rows{Rows: r, Mapper: n.Stmt.Mapper, unsafe: isUnsafe(n)}, err
}
// QueryRowx this NamedStmt. Because of limitations with QueryRow, this is
// an alias for QueryRow.
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) QueryRowx(arg interface{}) *Row {
return n.QueryRow(arg)
}
// Select using this NamedStmt
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) Select(dest interface{}, arg interface{}) error {
rows, err := n.Queryx(arg)
if err != nil {
return err
}
// if something happens here, we want to make sure the rows are Closed
defer rows.Close()
return scanAll(rows, dest, false)
}
// Get using this NamedStmt
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) Get(dest interface{}, arg interface{}) error {
r := n.QueryRowx(arg)
return r.scanAny(dest, false)
}
// Unsafe creates an unsafe version of the NamedStmt
func (n *NamedStmt) Unsafe() *NamedStmt {
r := &NamedStmt{Params: n.Params, Stmt: n.Stmt, QueryString: n.QueryString}
r.Stmt.unsafe = true
return r
}
// A union interface of preparer and binder, required to be able to prepare
// named statements (as the bindtype must be determined).
type namedPreparer interface {
Preparer
binder
}
func prepareNamed(p namedPreparer, query string) (*NamedStmt, error) {
bindType := BindType(p.DriverName())
q, args, err := compileNamedQuery([]byte(query), bindType)
if err != nil {
return nil, err
}
stmt, err := Preparex(p, q)
if err != nil {
return nil, err
}
return &NamedStmt{
QueryString: q,
Params: args,
Stmt: stmt,
}, nil
}
func bindAnyArgs(names []string, arg interface{}, m *reflectx.Mapper) ([]interface{}, error) {
if maparg, ok := arg.(map[string]interface{}); ok {
return bindMapArgs(names, maparg)
}
return bindArgs(names, arg, m)
}
// private interface to generate a list of interfaces from a given struct
// type, given a list of names to pull out of the struct. Used by public
// BindStruct interface.
func bindArgs(names []string, arg interface{}, m *reflectx.Mapper) ([]interface{}, error) {
arglist := make([]interface{}, 0, len(names))
// grab the indirected value of arg
v := reflect.ValueOf(arg)
for v = reflect.ValueOf(arg); v.Kind() == reflect.Ptr; {
v = v.Elem()
}
err := m.TraversalsByNameFunc(v.Type(), names, func(i int, t []int) error {
if len(t) == 0 {
return fmt.Errorf("could not find name %s in %#v", names[i], arg)
}
val := reflectx.FieldByIndexesReadOnly(v, t)
arglist = append(arglist, val.Interface())
return nil
})
return arglist, err
}
// like bindArgs, but for maps.
func bindMapArgs(names []string, arg map[string]interface{}) ([]interface{}, error) {
arglist := make([]interface{}, 0, len(names))
for _, name := range names {
val, ok := arg[name]
if !ok {
return arglist, fmt.Errorf("could not find name %s in %#v", name, arg)
}
arglist = append(arglist, val)
}
return arglist, nil
}
// bindStruct binds a named parameter query with fields from a struct argument.
// The rules for binding field names to parameter names follow the same
// conventions as for StructScan, including obeying the `db` struct tags.
func bindStruct(bindType int, query string, arg interface{}, m *reflectx.Mapper) (string, []interface{}, error) {
bound, names, err := compileNamedQuery([]byte(query), bindType)
if err != nil {
return "", []interface{}{}, err
}
arglist, err := bindArgs(names, arg, m)
if err != nil {
return "", []interface{}{}, err
}
return bound, arglist, nil
}
// bindMap binds a named parameter query with a map of arguments.
func bindMap(bindType int, query string, args map[string]interface{}) (string, []interface{}, error) {
bound, names, err := compileNamedQuery([]byte(query), bindType)
if err != nil {
return "", []interface{}{}, err
}
arglist, err := bindMapArgs(names, args)
return bound, arglist, err
}
// -- Compilation of Named Queries
// Allow digits and letters in bind params; additionally runes are
// checked against underscores, meaning that bind params can have be
// alphanumeric with underscores. Mind the difference between unicode
// digits and numbers, where '5' is a digit but '五' is not.
var allowedBindRunes = []*unicode.RangeTable{unicode.Letter, unicode.Digit}
// FIXME: this function isn't safe for unicode named params, as a failing test
// can testify. This is not a regression but a failure of the original code
// as well. It should be modified to range over runes in a string rather than
// bytes, even though this is less convenient and slower. Hopefully the
// addition of the prepared NamedStmt (which will only do this once) will make
// up for the slightly slower ad-hoc NamedExec/NamedQuery.
// compile a NamedQuery into an unbound query (using the '?' bindvar) and
// a list of names.
func compileNamedQuery(qs []byte, bindType int) (query string, names []string, err error) {
names = make([]string, 0, 10)
rebound := make([]byte, 0, len(qs))
inName := false
last := len(qs) - 1
currentVar := 1
name := make([]byte, 0, 10)
for i, b := range qs {
// a ':' while we're in a name is an error
if b == ':' {
// if this is the second ':' in a '::' escape sequence, append a ':'
if inName && i > 0 && qs[i-1] == ':' {
rebound = append(rebound, ':')
inName = false
continue
} else if inName {
err = errors.New("unexpected `:` while reading named param at " + strconv.Itoa(i))
return query, names, err
}
inName = true
name = []byte{}
} else if inName && i > 0 && b == '=' {
rebound = append(rebound, ':', '=')
inName = false
continue
// if we're in a name, and this is an allowed character, continue
} else if inName && (unicode.IsOneOf(allowedBindRunes, rune(b)) || b == '_' || b == '.') && i != last {
// append the byte to the name if we are in a name and not on the last byte
name = append(name, b)
// if we're in a name and it's not an allowed character, the name is done
} else if inName {
inName = false
// if this is the final byte of the string and it is part of the name, then
// make sure to add it to the name
if i == last && unicode.IsOneOf(allowedBindRunes, rune(b)) {
name = append(name, b)
}
// add the string representation to the names list
names = append(names, string(name))
// add a proper bindvar for the bindType
switch bindType {
// oracle only supports named type bind vars even for positional
case NAMED:
rebound = append(rebound, ':')
rebound = append(rebound, name...)
case QUESTION, UNKNOWN:
rebound = append(rebound, '?')
case DOLLAR:
rebound = append(rebound, '$')
for _, b := range strconv.Itoa(currentVar) {
rebound = append(rebound, byte(b))
}
currentVar++
case AT:
rebound = append(rebound, '@', 'p')
for _, b := range strconv.Itoa(currentVar) {
rebound = append(rebound, byte(b))
}
currentVar++
}
// add this byte to string unless it was not part of the name
if i != last {
rebound = append(rebound, b)
} else if !unicode.IsOneOf(allowedBindRunes, rune(b)) {
rebound = append(rebound, b)
}
} else {
// this is a normal byte and should just go onto the rebound query
rebound = append(rebound, b)
}
}
return string(rebound), names, err
}
// BindNamed binds a struct or a map to a query with named parameters.
// DEPRECATED: use sqlx.Named` instead of this, it may be removed in future.
func BindNamed(bindType int, query string, arg interface{}) (string, []interface{}, error) {
return bindNamedMapper(bindType, query, arg, mapper())
}
// Named takes a query using named parameters and an argument and
// returns a new query with a list of args that can be executed by
// a database. The return value uses the `?` bindvar.
func Named(query string, arg interface{}) (string, []interface{}, error) {
return bindNamedMapper(QUESTION, query, arg, mapper())
}
func bindNamedMapper(bindType int, query string, arg interface{}, m *reflectx.Mapper) (string, []interface{}, error) {
if maparg, ok := arg.(map[string]interface{}); ok {
return bindMap(bindType, query, maparg)
}
return bindStruct(bindType, query, arg, m)
}
// NamedQuery binds a named query and then runs Query on the result using the
// provided Ext (sqlx.Tx, sqlx.Db). It works with both structs and with
// map[string]interface{} types.
func NamedQuery(e Ext, query string, arg interface{}) (*Rows, error) {
q, args, err := bindNamedMapper(BindType(e.DriverName()), query, arg, mapperFor(e))
if err != nil {
return nil, err
}
return e.Queryx(q, args...)
}
// NamedExec uses BindStruct to get a query executable by the driver and
// then runs Exec on the result. Returns an error from the binding
// or the query excution itself.
func NamedExec(e Ext, query string, arg interface{}) (sql.Result, error) {
q, args, err := bindNamedMapper(BindType(e.DriverName()), query, arg, mapperFor(e))
if err != nil {
return nil, err
}
return e.Exec(q, args...)
}

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// +build go1.8
package sqlx
import (
"context"
"database/sql"
)
// A union interface of contextPreparer and binder, required to be able to
// prepare named statements with context (as the bindtype must be determined).
type namedPreparerContext interface {
PreparerContext
binder
}
func prepareNamedContext(ctx context.Context, p namedPreparerContext, query string) (*NamedStmt, error) {
bindType := BindType(p.DriverName())
q, args, err := compileNamedQuery([]byte(query), bindType)
if err != nil {
return nil, err
}
stmt, err := PreparexContext(ctx, p, q)
if err != nil {
return nil, err
}
return &NamedStmt{
QueryString: q,
Params: args,
Stmt: stmt,
}, nil
}
// ExecContext executes a named statement using the struct passed.
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) ExecContext(ctx context.Context, arg interface{}) (sql.Result, error) {
args, err := bindAnyArgs(n.Params, arg, n.Stmt.Mapper)
if err != nil {
return *new(sql.Result), err
}
return n.Stmt.ExecContext(ctx, args...)
}
// QueryContext executes a named statement using the struct argument, returning rows.
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) QueryContext(ctx context.Context, arg interface{}) (*sql.Rows, error) {
args, err := bindAnyArgs(n.Params, arg, n.Stmt.Mapper)
if err != nil {
return nil, err
}
return n.Stmt.QueryContext(ctx, args...)
}
// QueryRowContext executes a named statement against the database. Because sqlx cannot
// create a *sql.Row with an error condition pre-set for binding errors, sqlx
// returns a *sqlx.Row instead.
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) QueryRowContext(ctx context.Context, arg interface{}) *Row {
args, err := bindAnyArgs(n.Params, arg, n.Stmt.Mapper)
if err != nil {
return &Row{err: err}
}
return n.Stmt.QueryRowxContext(ctx, args...)
}
// MustExecContext execs a NamedStmt, panicing on error
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) MustExecContext(ctx context.Context, arg interface{}) sql.Result {
res, err := n.ExecContext(ctx, arg)
if err != nil {
panic(err)
}
return res
}
// QueryxContext using this NamedStmt
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) QueryxContext(ctx context.Context, arg interface{}) (*Rows, error) {
r, err := n.QueryContext(ctx, arg)
if err != nil {
return nil, err
}
return &Rows{Rows: r, Mapper: n.Stmt.Mapper, unsafe: isUnsafe(n)}, err
}
// QueryRowxContext this NamedStmt. Because of limitations with QueryRow, this is
// an alias for QueryRow.
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) QueryRowxContext(ctx context.Context, arg interface{}) *Row {
return n.QueryRowContext(ctx, arg)
}
// SelectContext using this NamedStmt
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) SelectContext(ctx context.Context, dest interface{}, arg interface{}) error {
rows, err := n.QueryxContext(ctx, arg)
if err != nil {
return err
}
// if something happens here, we want to make sure the rows are Closed
defer rows.Close()
return scanAll(rows, dest, false)
}
// GetContext using this NamedStmt
// Any named placeholder parameters are replaced with fields from arg.
func (n *NamedStmt) GetContext(ctx context.Context, dest interface{}, arg interface{}) error {
r := n.QueryRowxContext(ctx, arg)
return r.scanAny(dest, false)
}
// NamedQueryContext binds a named query and then runs Query on the result using the
// provided Ext (sqlx.Tx, sqlx.Db). It works with both structs and with
// map[string]interface{} types.
func NamedQueryContext(ctx context.Context, e ExtContext, query string, arg interface{}) (*Rows, error) {
q, args, err := bindNamedMapper(BindType(e.DriverName()), query, arg, mapperFor(e))
if err != nil {
return nil, err
}
return e.QueryxContext(ctx, q, args...)
}
// NamedExecContext uses BindStruct to get a query executable by the driver and
// then runs Exec on the result. Returns an error from the binding
// or the query excution itself.
func NamedExecContext(ctx context.Context, e ExtContext, query string, arg interface{}) (sql.Result, error) {
q, args, err := bindNamedMapper(BindType(e.DriverName()), query, arg, mapperFor(e))
if err != nil {
return nil, err
}
return e.ExecContext(ctx, q, args...)
}

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# reflectx
The sqlx package has special reflect needs. In particular, it needs to:
* be able to map a name to a field
* understand embedded structs
* understand mapping names to fields by a particular tag
* user specified name -> field mapping functions
These behaviors mimic the behaviors by the standard library marshallers and also the
behavior of standard Go accessors.
The first two are amply taken care of by `Reflect.Value.FieldByName`, and the third is
addressed by `Reflect.Value.FieldByNameFunc`, but these don't quite understand struct
tags in the ways that are vital to most marshallers, and they are slow.
This reflectx package extends reflect to achieve these goals.

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// Package reflectx implements extensions to the standard reflect lib suitable
// for implementing marshalling and unmarshalling packages. The main Mapper type
// allows for Go-compatible named attribute access, including accessing embedded
// struct attributes and the ability to use functions and struct tags to
// customize field names.
//
package reflectx
import (
"reflect"
"runtime"
"strings"
"sync"
)
// A FieldInfo is metadata for a struct field.
type FieldInfo struct {
Index []int
Path string
Field reflect.StructField
Zero reflect.Value
Name string
Options map[string]string
Embedded bool
Children []*FieldInfo
Parent *FieldInfo
}
// A StructMap is an index of field metadata for a struct.
type StructMap struct {
Tree *FieldInfo
Index []*FieldInfo
Paths map[string]*FieldInfo
Names map[string]*FieldInfo
}
// GetByPath returns a *FieldInfo for a given string path.
func (f StructMap) GetByPath(path string) *FieldInfo {
return f.Paths[path]
}
// GetByTraversal returns a *FieldInfo for a given integer path. It is
// analogous to reflect.FieldByIndex, but using the cached traversal
// rather than re-executing the reflect machinery each time.
func (f StructMap) GetByTraversal(index []int) *FieldInfo {
if len(index) == 0 {
return nil
}
tree := f.Tree
for _, i := range index {
if i >= len(tree.Children) || tree.Children[i] == nil {
return nil
}
tree = tree.Children[i]
}
return tree
}
// Mapper is a general purpose mapper of names to struct fields. A Mapper
// behaves like most marshallers in the standard library, obeying a field tag
// for name mapping but also providing a basic transform function.
type Mapper struct {
cache map[reflect.Type]*StructMap
tagName string
tagMapFunc func(string) string
mapFunc func(string) string
mutex sync.Mutex
}
// NewMapper returns a new mapper using the tagName as its struct field tag.
// If tagName is the empty string, it is ignored.
func NewMapper(tagName string) *Mapper {
return &Mapper{
cache: make(map[reflect.Type]*StructMap),
tagName: tagName,
}
}
// NewMapperTagFunc returns a new mapper which contains a mapper for field names
// AND a mapper for tag values. This is useful for tags like json which can
// have values like "name,omitempty".
func NewMapperTagFunc(tagName string, mapFunc, tagMapFunc func(string) string) *Mapper {
return &Mapper{
cache: make(map[reflect.Type]*StructMap),
tagName: tagName,
mapFunc: mapFunc,
tagMapFunc: tagMapFunc,
}
}
// NewMapperFunc returns a new mapper which optionally obeys a field tag and
// a struct field name mapper func given by f. Tags will take precedence, but
// for any other field, the mapped name will be f(field.Name)
func NewMapperFunc(tagName string, f func(string) string) *Mapper {
return &Mapper{
cache: make(map[reflect.Type]*StructMap),
tagName: tagName,
mapFunc: f,
}
}
// TypeMap returns a mapping of field strings to int slices representing
// the traversal down the struct to reach the field.
func (m *Mapper) TypeMap(t reflect.Type) *StructMap {
m.mutex.Lock()
mapping, ok := m.cache[t]
if !ok {
mapping = getMapping(t, m.tagName, m.mapFunc, m.tagMapFunc)
m.cache[t] = mapping
}
m.mutex.Unlock()
return mapping
}
// FieldMap returns the mapper's mapping of field names to reflect values. Panics
// if v's Kind is not Struct, or v is not Indirectable to a struct kind.
func (m *Mapper) FieldMap(v reflect.Value) map[string]reflect.Value {
v = reflect.Indirect(v)
mustBe(v, reflect.Struct)
r := map[string]reflect.Value{}
tm := m.TypeMap(v.Type())
for tagName, fi := range tm.Names {
r[tagName] = FieldByIndexes(v, fi.Index)
}
return r
}
// FieldByName returns a field by its mapped name as a reflect.Value.
// Panics if v's Kind is not Struct or v is not Indirectable to a struct Kind.
// Returns zero Value if the name is not found.
func (m *Mapper) FieldByName(v reflect.Value, name string) reflect.Value {
v = reflect.Indirect(v)
mustBe(v, reflect.Struct)
tm := m.TypeMap(v.Type())
fi, ok := tm.Names[name]
if !ok {
return v
}
return FieldByIndexes(v, fi.Index)
}
// FieldsByName returns a slice of values corresponding to the slice of names
// for the value. Panics if v's Kind is not Struct or v is not Indirectable
// to a struct Kind. Returns zero Value for each name not found.
func (m *Mapper) FieldsByName(v reflect.Value, names []string) []reflect.Value {
v = reflect.Indirect(v)
mustBe(v, reflect.Struct)
tm := m.TypeMap(v.Type())
vals := make([]reflect.Value, 0, len(names))
for _, name := range names {
fi, ok := tm.Names[name]
if !ok {
vals = append(vals, *new(reflect.Value))
} else {
vals = append(vals, FieldByIndexes(v, fi.Index))
}
}
return vals
}
// TraversalsByName returns a slice of int slices which represent the struct
// traversals for each mapped name. Panics if t is not a struct or Indirectable
// to a struct. Returns empty int slice for each name not found.
func (m *Mapper) TraversalsByName(t reflect.Type, names []string) [][]int {
r := make([][]int, 0, len(names))
m.TraversalsByNameFunc(t, names, func(_ int, i []int) error {
if i == nil {
r = append(r, []int{})
} else {
r = append(r, i)
}
return nil
})
return r
}
// TraversalsByNameFunc traverses the mapped names and calls fn with the index of
// each name and the struct traversal represented by that name. Panics if t is not
// a struct or Indirectable to a struct. Returns the first error returned by fn or nil.
func (m *Mapper) TraversalsByNameFunc(t reflect.Type, names []string, fn func(int, []int) error) error {
t = Deref(t)
mustBe(t, reflect.Struct)
tm := m.TypeMap(t)
for i, name := range names {
fi, ok := tm.Names[name]
if !ok {
if err := fn(i, nil); err != nil {
return err
}
} else {
if err := fn(i, fi.Index); err != nil {
return err
}
}
}
return nil
}
// FieldByIndexes returns a value for the field given by the struct traversal
// for the given value.
func FieldByIndexes(v reflect.Value, indexes []int) reflect.Value {
for _, i := range indexes {
v = reflect.Indirect(v).Field(i)
// if this is a pointer and it's nil, allocate a new value and set it
if v.Kind() == reflect.Ptr && v.IsNil() {
alloc := reflect.New(Deref(v.Type()))
v.Set(alloc)
}
if v.Kind() == reflect.Map && v.IsNil() {
v.Set(reflect.MakeMap(v.Type()))
}
}
return v
}
// FieldByIndexesReadOnly returns a value for a particular struct traversal,
// but is not concerned with allocating nil pointers because the value is
// going to be used for reading and not setting.
func FieldByIndexesReadOnly(v reflect.Value, indexes []int) reflect.Value {
for _, i := range indexes {
v = reflect.Indirect(v).Field(i)
}
return v
}
// Deref is Indirect for reflect.Types
func Deref(t reflect.Type) reflect.Type {
if t.Kind() == reflect.Ptr {
t = t.Elem()
}
return t
}
// -- helpers & utilities --
type kinder interface {
Kind() reflect.Kind
}
// mustBe checks a value against a kind, panicing with a reflect.ValueError
// if the kind isn't that which is required.
func mustBe(v kinder, expected reflect.Kind) {
if k := v.Kind(); k != expected {
panic(&reflect.ValueError{Method: methodName(), Kind: k})
}
}
// methodName returns the caller of the function calling methodName
func methodName() string {
pc, _, _, _ := runtime.Caller(2)
f := runtime.FuncForPC(pc)
if f == nil {
return "unknown method"
}
return f.Name()
}
type typeQueue struct {
t reflect.Type
fi *FieldInfo
pp string // Parent path
}
// A copying append that creates a new slice each time.
func apnd(is []int, i int) []int {
x := make([]int, len(is)+1)
for p, n := range is {
x[p] = n
}
x[len(x)-1] = i
return x
}
type mapf func(string) string
// parseName parses the tag and the target name for the given field using
// the tagName (eg 'json' for `json:"foo"` tags), mapFunc for mapping the
// field's name to a target name, and tagMapFunc for mapping the tag to
// a target name.
func parseName(field reflect.StructField, tagName string, mapFunc, tagMapFunc mapf) (tag, fieldName string) {
// first, set the fieldName to the field's name
fieldName = field.Name
// if a mapFunc is set, use that to override the fieldName
if mapFunc != nil {
fieldName = mapFunc(fieldName)
}
// if there's no tag to look for, return the field name
if tagName == "" {
return "", fieldName
}
// if this tag is not set using the normal convention in the tag,
// then return the fieldname.. this check is done because according
// to the reflect documentation:
// If the tag does not have the conventional format,
// the value returned by Get is unspecified.
// which doesn't sound great.
if !strings.Contains(string(field.Tag), tagName+":") {
return "", fieldName
}
// at this point we're fairly sure that we have a tag, so lets pull it out
tag = field.Tag.Get(tagName)
// if we have a mapper function, call it on the whole tag
// XXX: this is a change from the old version, which pulled out the name
// before the tagMapFunc could be run, but I think this is the right way
if tagMapFunc != nil {
tag = tagMapFunc(tag)
}
// finally, split the options from the name
parts := strings.Split(tag, ",")
fieldName = parts[0]
return tag, fieldName
}
// parseOptions parses options out of a tag string, skipping the name
func parseOptions(tag string) map[string]string {
parts := strings.Split(tag, ",")
options := make(map[string]string, len(parts))
if len(parts) > 1 {
for _, opt := range parts[1:] {
// short circuit potentially expensive split op
if strings.Contains(opt, "=") {
kv := strings.Split(opt, "=")
options[kv[0]] = kv[1]
continue
}
options[opt] = ""
}
}
return options
}
// getMapping returns a mapping for the t type, using the tagName, mapFunc and
// tagMapFunc to determine the canonical names of fields.
func getMapping(t reflect.Type, tagName string, mapFunc, tagMapFunc mapf) *StructMap {
m := []*FieldInfo{}
root := &FieldInfo{}
queue := []typeQueue{}
queue = append(queue, typeQueue{Deref(t), root, ""})
QueueLoop:
for len(queue) != 0 {
// pop the first item off of the queue
tq := queue[0]
queue = queue[1:]
// ignore recursive field
for p := tq.fi.Parent; p != nil; p = p.Parent {
if tq.fi.Field.Type == p.Field.Type {
continue QueueLoop
}
}
nChildren := 0
if tq.t.Kind() == reflect.Struct {
nChildren = tq.t.NumField()
}
tq.fi.Children = make([]*FieldInfo, nChildren)
// iterate through all of its fields
for fieldPos := 0; fieldPos < nChildren; fieldPos++ {
f := tq.t.Field(fieldPos)
// parse the tag and the target name using the mapping options for this field
tag, name := parseName(f, tagName, mapFunc, tagMapFunc)
// if the name is "-", disabled via a tag, skip it
if name == "-" {
continue
}
fi := FieldInfo{
Field: f,
Name: name,
Zero: reflect.New(f.Type).Elem(),
Options: parseOptions(tag),
}
// if the path is empty this path is just the name
if tq.pp == "" {
fi.Path = fi.Name
} else {
fi.Path = tq.pp + "." + fi.Name
}
// skip unexported fields
if len(f.PkgPath) != 0 && !f.Anonymous {
continue
}
// bfs search of anonymous embedded structs
if f.Anonymous {
pp := tq.pp
if tag != "" {
pp = fi.Path
}
fi.Embedded = true
fi.Index = apnd(tq.fi.Index, fieldPos)
nChildren := 0
ft := Deref(f.Type)
if ft.Kind() == reflect.Struct {
nChildren = ft.NumField()
}
fi.Children = make([]*FieldInfo, nChildren)
queue = append(queue, typeQueue{Deref(f.Type), &fi, pp})
} else if fi.Zero.Kind() == reflect.Struct || (fi.Zero.Kind() == reflect.Ptr && fi.Zero.Type().Elem().Kind() == reflect.Struct) {
fi.Index = apnd(tq.fi.Index, fieldPos)
fi.Children = make([]*FieldInfo, Deref(f.Type).NumField())
queue = append(queue, typeQueue{Deref(f.Type), &fi, fi.Path})
}
fi.Index = apnd(tq.fi.Index, fieldPos)
fi.Parent = tq.fi
tq.fi.Children[fieldPos] = &fi
m = append(m, &fi)
}
}
flds := &StructMap{Index: m, Tree: root, Paths: map[string]*FieldInfo{}, Names: map[string]*FieldInfo{}}
for _, fi := range flds.Index {
flds.Paths[fi.Path] = fi
if fi.Name != "" && !fi.Embedded {
flds.Names[fi.Path] = fi
}
}
return flds
}

1045
vendor/github.com/jmoiron/sqlx/sqlx.go generated vendored Normal file
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vendor/github.com/jmoiron/sqlx/sqlx_context.go generated vendored Normal file
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// +build go1.8
package sqlx
import (
"context"
"database/sql"
"fmt"
"io/ioutil"
"path/filepath"
"reflect"
)
// ConnectContext to a database and verify with a ping.
func ConnectContext(ctx context.Context, driverName, dataSourceName string) (*DB, error) {
db, err := Open(driverName, dataSourceName)
if err != nil {
return db, err
}
err = db.PingContext(ctx)
return db, err
}
// QueryerContext is an interface used by GetContext and SelectContext
type QueryerContext interface {
QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
QueryxContext(ctx context.Context, query string, args ...interface{}) (*Rows, error)
QueryRowxContext(ctx context.Context, query string, args ...interface{}) *Row
}
// PreparerContext is an interface used by PreparexContext.
type PreparerContext interface {
PrepareContext(ctx context.Context, query string) (*sql.Stmt, error)
}
// ExecerContext is an interface used by MustExecContext and LoadFileContext
type ExecerContext interface {
ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
}
// ExtContext is a union interface which can bind, query, and exec, with Context
// used by NamedQueryContext and NamedExecContext.
type ExtContext interface {
binder
QueryerContext
ExecerContext
}
// SelectContext executes a query using the provided Queryer, and StructScans
// each row into dest, which must be a slice. If the slice elements are
// scannable, then the result set must have only one column. Otherwise,
// StructScan is used. The *sql.Rows are closed automatically.
// Any placeholder parameters are replaced with supplied args.
func SelectContext(ctx context.Context, q QueryerContext, dest interface{}, query string, args ...interface{}) error {
rows, err := q.QueryxContext(ctx, query, args...)
if err != nil {
return err
}
// if something happens here, we want to make sure the rows are Closed
defer rows.Close()
return scanAll(rows, dest, false)
}
// PreparexContext prepares a statement.
//
// The provided context is used for the preparation of the statement, not for
// the execution of the statement.
func PreparexContext(ctx context.Context, p PreparerContext, query string) (*Stmt, error) {
s, err := p.PrepareContext(ctx, query)
if err != nil {
return nil, err
}
return &Stmt{Stmt: s, unsafe: isUnsafe(p), Mapper: mapperFor(p)}, err
}
// GetContext does a QueryRow using the provided Queryer, and scans the
// resulting row to dest. If dest is scannable, the result must only have one
// column. Otherwise, StructScan is used. Get will return sql.ErrNoRows like
// row.Scan would. Any placeholder parameters are replaced with supplied args.
// An error is returned if the result set is empty.
func GetContext(ctx context.Context, q QueryerContext, dest interface{}, query string, args ...interface{}) error {
r := q.QueryRowxContext(ctx, query, args...)
return r.scanAny(dest, false)
}
// LoadFileContext exec's every statement in a file (as a single call to Exec).
// LoadFileContext may return a nil *sql.Result if errors are encountered
// locating or reading the file at path. LoadFile reads the entire file into
// memory, so it is not suitable for loading large data dumps, but can be useful
// for initializing schemas or loading indexes.
//
// FIXME: this does not really work with multi-statement files for mattn/go-sqlite3
// or the go-mysql-driver/mysql drivers; pq seems to be an exception here. Detecting
// this by requiring something with DriverName() and then attempting to split the
// queries will be difficult to get right, and its current driver-specific behavior
// is deemed at least not complex in its incorrectness.
func LoadFileContext(ctx context.Context, e ExecerContext, path string) (*sql.Result, error) {
realpath, err := filepath.Abs(path)
if err != nil {
return nil, err
}
contents, err := ioutil.ReadFile(realpath)
if err != nil {
return nil, err
}
res, err := e.ExecContext(ctx, string(contents))
return &res, err
}
// MustExecContext execs the query using e and panics if there was an error.
// Any placeholder parameters are replaced with supplied args.
func MustExecContext(ctx context.Context, e ExecerContext, query string, args ...interface{}) sql.Result {
res, err := e.ExecContext(ctx, query, args...)
if err != nil {
panic(err)
}
return res
}
// PrepareNamedContext returns an sqlx.NamedStmt
func (db *DB) PrepareNamedContext(ctx context.Context, query string) (*NamedStmt, error) {
return prepareNamedContext(ctx, db, query)
}
// NamedQueryContext using this DB.
// Any named placeholder parameters are replaced with fields from arg.
func (db *DB) NamedQueryContext(ctx context.Context, query string, arg interface{}) (*Rows, error) {
return NamedQueryContext(ctx, db, query, arg)
}
// NamedExecContext using this DB.
// Any named placeholder parameters are replaced with fields from arg.
func (db *DB) NamedExecContext(ctx context.Context, query string, arg interface{}) (sql.Result, error) {
return NamedExecContext(ctx, db, query, arg)
}
// SelectContext using this DB.
// Any placeholder parameters are replaced with supplied args.
func (db *DB) SelectContext(ctx context.Context, dest interface{}, query string, args ...interface{}) error {
return SelectContext(ctx, db, dest, query, args...)
}
// GetContext using this DB.
// Any placeholder parameters are replaced with supplied args.
// An error is returned if the result set is empty.
func (db *DB) GetContext(ctx context.Context, dest interface{}, query string, args ...interface{}) error {
return GetContext(ctx, db, dest, query, args...)
}
// PreparexContext returns an sqlx.Stmt instead of a sql.Stmt.
//
// The provided context is used for the preparation of the statement, not for
// the execution of the statement.
func (db *DB) PreparexContext(ctx context.Context, query string) (*Stmt, error) {
return PreparexContext(ctx, db, query)
}
// QueryxContext queries the database and returns an *sqlx.Rows.
// Any placeholder parameters are replaced with supplied args.
func (db *DB) QueryxContext(ctx context.Context, query string, args ...interface{}) (*Rows, error) {
r, err := db.DB.QueryContext(ctx, query, args...)
if err != nil {
return nil, err
}
return &Rows{Rows: r, unsafe: db.unsafe, Mapper: db.Mapper}, err
}
// QueryRowxContext queries the database and returns an *sqlx.Row.
// Any placeholder parameters are replaced with supplied args.
func (db *DB) QueryRowxContext(ctx context.Context, query string, args ...interface{}) *Row {
rows, err := db.DB.QueryContext(ctx, query, args...)
return &Row{rows: rows, err: err, unsafe: db.unsafe, Mapper: db.Mapper}
}
// MustBeginTx starts a transaction, and panics on error. Returns an *sqlx.Tx instead
// of an *sql.Tx.
//
// The provided context is used until the transaction is committed or rolled
// back. If the context is canceled, the sql package will roll back the
// transaction. Tx.Commit will return an error if the context provided to
// MustBeginContext is canceled.
func (db *DB) MustBeginTx(ctx context.Context, opts *sql.TxOptions) *Tx {
tx, err := db.BeginTxx(ctx, opts)
if err != nil {
panic(err)
}
return tx
}
// MustExecContext (panic) runs MustExec using this database.
// Any placeholder parameters are replaced with supplied args.
func (db *DB) MustExecContext(ctx context.Context, query string, args ...interface{}) sql.Result {
return MustExecContext(ctx, db, query, args...)
}
// BeginTxx begins a transaction and returns an *sqlx.Tx instead of an
// *sql.Tx.
//
// The provided context is used until the transaction is committed or rolled
// back. If the context is canceled, the sql package will roll back the
// transaction. Tx.Commit will return an error if the context provided to
// BeginxContext is canceled.
func (db *DB) BeginTxx(ctx context.Context, opts *sql.TxOptions) (*Tx, error) {
tx, err := db.DB.BeginTx(ctx, opts)
if err != nil {
return nil, err
}
return &Tx{Tx: tx, driverName: db.driverName, unsafe: db.unsafe, Mapper: db.Mapper}, err
}
// StmtxContext returns a version of the prepared statement which runs within a
// transaction. Provided stmt can be either *sql.Stmt or *sqlx.Stmt.
func (tx *Tx) StmtxContext(ctx context.Context, stmt interface{}) *Stmt {
var s *sql.Stmt
switch v := stmt.(type) {
case Stmt:
s = v.Stmt
case *Stmt:
s = v.Stmt
case *sql.Stmt:
s = v
default:
panic(fmt.Sprintf("non-statement type %v passed to Stmtx", reflect.ValueOf(stmt).Type()))
}
return &Stmt{Stmt: tx.StmtContext(ctx, s), Mapper: tx.Mapper}
}
// NamedStmtContext returns a version of the prepared statement which runs
// within a transaction.
func (tx *Tx) NamedStmtContext(ctx context.Context, stmt *NamedStmt) *NamedStmt {
return &NamedStmt{
QueryString: stmt.QueryString,
Params: stmt.Params,
Stmt: tx.StmtxContext(ctx, stmt.Stmt),
}
}
// PreparexContext returns an sqlx.Stmt instead of a sql.Stmt.
//
// The provided context is used for the preparation of the statement, not for
// the execution of the statement.
func (tx *Tx) PreparexContext(ctx context.Context, query string) (*Stmt, error) {
return PreparexContext(ctx, tx, query)
}
// PrepareNamedContext returns an sqlx.NamedStmt
func (tx *Tx) PrepareNamedContext(ctx context.Context, query string) (*NamedStmt, error) {
return prepareNamedContext(ctx, tx, query)
}
// MustExecContext runs MustExecContext within a transaction.
// Any placeholder parameters are replaced with supplied args.
func (tx *Tx) MustExecContext(ctx context.Context, query string, args ...interface{}) sql.Result {
return MustExecContext(ctx, tx, query, args...)
}
// QueryxContext within a transaction and context.
// Any placeholder parameters are replaced with supplied args.
func (tx *Tx) QueryxContext(ctx context.Context, query string, args ...interface{}) (*Rows, error) {
r, err := tx.Tx.QueryContext(ctx, query, args...)
if err != nil {
return nil, err
}
return &Rows{Rows: r, unsafe: tx.unsafe, Mapper: tx.Mapper}, err
}
// SelectContext within a transaction and context.
// Any placeholder parameters are replaced with supplied args.
func (tx *Tx) SelectContext(ctx context.Context, dest interface{}, query string, args ...interface{}) error {
return SelectContext(ctx, tx, dest, query, args...)
}
// GetContext within a transaction and context.
// Any placeholder parameters are replaced with supplied args.
// An error is returned if the result set is empty.
func (tx *Tx) GetContext(ctx context.Context, dest interface{}, query string, args ...interface{}) error {
return GetContext(ctx, tx, dest, query, args...)
}
// QueryRowxContext within a transaction and context.
// Any placeholder parameters are replaced with supplied args.
func (tx *Tx) QueryRowxContext(ctx context.Context, query string, args ...interface{}) *Row {
rows, err := tx.Tx.QueryContext(ctx, query, args...)
return &Row{rows: rows, err: err, unsafe: tx.unsafe, Mapper: tx.Mapper}
}
// NamedExecContext using this Tx.
// Any named placeholder parameters are replaced with fields from arg.
func (tx *Tx) NamedExecContext(ctx context.Context, query string, arg interface{}) (sql.Result, error) {
return NamedExecContext(ctx, tx, query, arg)
}
// SelectContext using the prepared statement.
// Any placeholder parameters are replaced with supplied args.
func (s *Stmt) SelectContext(ctx context.Context, dest interface{}, args ...interface{}) error {
return SelectContext(ctx, &qStmt{s}, dest, "", args...)
}
// GetContext using the prepared statement.
// Any placeholder parameters are replaced with supplied args.
// An error is returned if the result set is empty.
func (s *Stmt) GetContext(ctx context.Context, dest interface{}, args ...interface{}) error {
return GetContext(ctx, &qStmt{s}, dest, "", args...)
}
// MustExecContext (panic) using this statement. Note that the query portion of
// the error output will be blank, as Stmt does not expose its query.
// Any placeholder parameters are replaced with supplied args.
func (s *Stmt) MustExecContext(ctx context.Context, args ...interface{}) sql.Result {
return MustExecContext(ctx, &qStmt{s}, "", args...)
}
// QueryRowxContext using this statement.
// Any placeholder parameters are replaced with supplied args.
func (s *Stmt) QueryRowxContext(ctx context.Context, args ...interface{}) *Row {
qs := &qStmt{s}
return qs.QueryRowxContext(ctx, "", args...)
}
// QueryxContext using this statement.
// Any placeholder parameters are replaced with supplied args.
func (s *Stmt) QueryxContext(ctx context.Context, args ...interface{}) (*Rows, error) {
qs := &qStmt{s}
return qs.QueryxContext(ctx, "", args...)
}
func (q *qStmt) QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error) {
return q.Stmt.QueryContext(ctx, args...)
}
func (q *qStmt) QueryxContext(ctx context.Context, query string, args ...interface{}) (*Rows, error) {
r, err := q.Stmt.QueryContext(ctx, args...)
if err != nil {
return nil, err
}
return &Rows{Rows: r, unsafe: q.Stmt.unsafe, Mapper: q.Stmt.Mapper}, err
}
func (q *qStmt) QueryRowxContext(ctx context.Context, query string, args ...interface{}) *Row {
rows, err := q.Stmt.QueryContext(ctx, args...)
return &Row{rows: rows, err: err, unsafe: q.Stmt.unsafe, Mapper: q.Stmt.Mapper}
}
func (q *qStmt) ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error) {
return q.Stmt.ExecContext(ctx, args...)
}

6
vendor/gopkg.in/ini.v1/.gitignore generated vendored Normal file
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testdata/conf_out.ini
ini.sublime-project
ini.sublime-workspace
testdata/conf_reflect.ini
.idea
/.vscode

20
vendor/gopkg.in/ini.v1/.travis.yml generated vendored Normal file
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@ -0,0 +1,20 @@
sudo: false
language: go
go:
- 1.6.x
- 1.7.x
- 1.8.x
- 1.9.x
- 1.10.x
- 1.11.x
- 1.12.x
- 1.13.x
install: skip
script:
- go get golang.org/x/tools/cmd/cover
- go get github.com/smartystreets/goconvey
- mkdir -p $HOME/gopath/src/gopkg.in
- ln -s $HOME/gopath/src/github.com/go-ini/ini $HOME/gopath/src/gopkg.in/ini.v1
- cd $HOME/gopath/src/gopkg.in/ini.v1
- go test -v -cover -race

191
vendor/gopkg.in/ini.v1/LICENSE generated vendored Normal file
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@ -0,0 +1,191 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction, and
distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by the copyright
owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all other entities
that control, are controlled by, or are under common control with that entity.
For the purposes of this definition, "control" means (i) the power, direct or
indirect, to cause the direction or management of such entity, whether by
contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity exercising
permissions granted by this License.
"Source" form shall mean the preferred form for making modifications, including
but not limited to software source code, documentation source, and configuration
files.
"Object" form shall mean any form resulting from mechanical transformation or
translation of a Source form, including but not limited to compiled object code,
generated documentation, and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or Object form, made
available under the License, as indicated by a copyright notice that is included
in or attached to the work (an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object form, that
is based on (or derived from) the Work and for which the editorial revisions,
annotations, elaborations, or other modifications represent, as a whole, an
original work of authorship. For the purposes of this License, Derivative Works
shall not include works that remain separable from, or merely link (or bind by
name) to the interfaces of, the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including the original version
of the Work and any modifications or additions to that Work or Derivative Works
thereof, that is intentionally submitted to Licensor for inclusion in the Work
by the copyright owner or by an individual or Legal Entity authorized to submit
on behalf of the copyright owner. For the purposes of this definition,
"submitted" means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems, and
issue tracking systems that are managed by, or on behalf of, the Licensor for
the purpose of discussing and improving the Work, but excluding communication
that is conspicuously marked or otherwise designated in writing by the copyright
owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
of whom a Contribution has been received by Licensor and subsequently
incorporated within the Work.
2. Grant of Copyright License.
Subject to the terms and conditions of this License, each Contributor hereby
grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
irrevocable copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the Work and such
Derivative Works in Source or Object form.
3. Grant of Patent License.
Subject to the terms and conditions of this License, each Contributor hereby
grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
irrevocable (except as stated in this section) patent license to make, have
made, use, offer to sell, sell, import, and otherwise transfer the Work, where
such license applies only to those patent claims licensable by such Contributor
that are necessarily infringed by their Contribution(s) alone or by combination
of their Contribution(s) with the Work to which such Contribution(s) was
submitted. If You institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work or a
Contribution incorporated within the Work constitutes direct or contributory
patent infringement, then any patent licenses granted to You under this License
for that Work shall terminate as of the date such litigation is filed.
4. Redistribution.
You may reproduce and distribute copies of the Work or Derivative Works thereof
in any medium, with or without modifications, and in Source or Object form,
provided that You meet the following conditions:
You must give any other recipients of the Work or Derivative Works a copy of
this License; and
You must cause any modified files to carry prominent notices stating that You
changed the files; and
You must retain, in the Source form of any Derivative Works that You distribute,
all copyright, patent, trademark, and attribution notices from the Source form
of the Work, excluding those notices that do not pertain to any part of the
Derivative Works; and
If the Work includes a "NOTICE" text file as part of its distribution, then any
Derivative Works that You distribute must include a readable copy of the
attribution notices contained within such NOTICE file, excluding those notices
that do not pertain to any part of the Derivative Works, in at least one of the
following places: within a NOTICE text file distributed as part of the
Derivative Works; within the Source form or documentation, if provided along
with the Derivative Works; or, within a display generated by the Derivative
Works, if and wherever such third-party notices normally appear. The contents of
the NOTICE file are for informational purposes only and do not modify the
License. You may add Your own attribution notices within Derivative Works that
You distribute, alongside or as an addendum to the NOTICE text from the Work,
provided that such additional attribution notices cannot be construed as
modifying the License.
You may add Your own copyright statement to Your modifications and may provide
additional or different license terms and conditions for use, reproduction, or
distribution of Your modifications, or for any such Derivative Works as a whole,
provided Your use, reproduction, and distribution of the Work otherwise complies
with the conditions stated in this License.
5. Submission of Contributions.
Unless You explicitly state otherwise, any Contribution intentionally submitted
for inclusion in the Work by You to the Licensor shall be under the terms and
conditions of this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify the terms of
any separate license agreement you may have executed with Licensor regarding
such Contributions.
6. Trademarks.
This License does not grant permission to use the trade names, trademarks,
service marks, or product names of the Licensor, except as required for
reasonable and customary use in describing the origin of the Work and
reproducing the content of the NOTICE file.
7. Disclaimer of Warranty.
Unless required by applicable law or agreed to in writing, Licensor provides the
Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
including, without limitation, any warranties or conditions of TITLE,
NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are
solely responsible for determining the appropriateness of using or
redistributing the Work and assume any risks associated with Your exercise of
permissions under this License.
8. Limitation of Liability.
In no event and under no legal theory, whether in tort (including negligence),
contract, or otherwise, unless required by applicable law (such as deliberate
and grossly negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special, incidental,
or consequential damages of any character arising as a result of this License or
out of the use or inability to use the Work (including but not limited to
damages for loss of goodwill, work stoppage, computer failure or malfunction, or
any and all other commercial damages or losses), even if such Contributor has
been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability.
While redistributing the Work or Derivative Works thereof, You may choose to
offer, and charge a fee for, acceptance of support, warranty, indemnity, or
other liability obligations and/or rights consistent with this License. However,
in accepting such obligations, You may act only on Your own behalf and on Your
sole responsibility, not on behalf of any other Contributor, and only if You
agree to indemnify, defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason of your
accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work
To apply the Apache License to your work, attach the following boilerplate
notice, with the fields enclosed by brackets "[]" replaced with your own
identifying information. (Don't include the brackets!) The text should be
enclosed in the appropriate comment syntax for the file format. We also
recommend that a file or class name and description of purpose be included on
the same "printed page" as the copyright notice for easier identification within
third-party archives.
Copyright 2014 Unknwon
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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vendor/gopkg.in/ini.v1/Makefile generated vendored Normal file
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.PHONY: build test bench vet coverage
build: vet bench
test:
go test -v -cover -race
bench:
go test -v -cover -test.bench=. -test.benchmem
vet:
go vet
coverage:
go test -coverprofile=c.out && go tool cover -html=c.out && rm c.out

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# INI
[![Build Status](https://img.shields.io/travis/go-ini/ini/master.svg?style=for-the-badge&logo=travis)](https://travis-ci.org/go-ini/ini) [![Sourcegraph](https://img.shields.io/badge/view%20on-Sourcegraph-brightgreen.svg?style=for-the-badge&logo=sourcegraph)](https://sourcegraph.com/github.com/go-ini/ini)
![](https://avatars0.githubusercontent.com/u/10216035?v=3&s=200)
Package ini provides INI file read and write functionality in Go.
## Features
- Load from multiple data sources(file, `[]byte`, `io.Reader` and `io.ReadCloser`) with overwrites.
- Read with recursion values.
- Read with parent-child sections.
- Read with auto-increment key names.
- Read with multiple-line values.
- Read with tons of helper methods.
- Read and convert values to Go types.
- Read and **WRITE** comments of sections and keys.
- Manipulate sections, keys and comments with ease.
- Keep sections and keys in order as you parse and save.
## Installation
The minimum requirement of Go is **1.6**.
```sh
$ go get gopkg.in/ini.v1
```
Please add `-u` flag to update in the future.
## Getting Help
- [Getting Started](https://ini.unknwon.io/docs/intro/getting_started)
- [API Documentation](https://gowalker.org/gopkg.in/ini.v1)
## License
This project is under Apache v2 License. See the [LICENSE](LICENSE) file for the full license text.

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// Copyright 2019 Unknwon
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package ini
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"os"
)
var (
_ dataSource = (*sourceFile)(nil)
_ dataSource = (*sourceData)(nil)
_ dataSource = (*sourceReadCloser)(nil)
)
// dataSource is an interface that returns object which can be read and closed.
type dataSource interface {
ReadCloser() (io.ReadCloser, error)
}
// sourceFile represents an object that contains content on the local file system.
type sourceFile struct {
name string
}
func (s sourceFile) ReadCloser() (_ io.ReadCloser, err error) {
return os.Open(s.name)
}
// sourceData represents an object that contains content in memory.
type sourceData struct {
data []byte
}
func (s *sourceData) ReadCloser() (io.ReadCloser, error) {
return ioutil.NopCloser(bytes.NewReader(s.data)), nil
}
// sourceReadCloser represents an input stream with Close method.
type sourceReadCloser struct {
reader io.ReadCloser
}
func (s *sourceReadCloser) ReadCloser() (io.ReadCloser, error) {
return s.reader, nil
}
func parseDataSource(source interface{}) (dataSource, error) {
switch s := source.(type) {
case string:
return sourceFile{s}, nil
case []byte:
return &sourceData{s}, nil
case io.Reader:
return &sourceReadCloser{ioutil.NopCloser(s)}, nil
case io.ReadCloser:
return &sourceReadCloser{s}, nil
default:
return nil, fmt.Errorf("error parsing data source: unknown type %q", s)
}
}

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// Copyright 2019 Unknwon
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package ini
const (
// Deprecated: Use "DefaultSection" instead.
DEFAULT_SECTION = DefaultSection
)
var (
// Deprecated: AllCapsUnderscore converts to format ALL_CAPS_UNDERSCORE.
AllCapsUnderscore = SnackCase
)

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vendor/gopkg.in/ini.v1/error.go generated vendored Normal file
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// Copyright 2016 Unknwon
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package ini
import (
"fmt"
)
// ErrDelimiterNotFound indicates the error type of no delimiter is found which there should be one.
type ErrDelimiterNotFound struct {
Line string
}
// IsErrDelimiterNotFound returns true if the given error is an instance of ErrDelimiterNotFound.
func IsErrDelimiterNotFound(err error) bool {
_, ok := err.(ErrDelimiterNotFound)
return ok
}
func (err ErrDelimiterNotFound) Error() string {
return fmt.Sprintf("key-value delimiter not found: %s", err.Line)
}

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vendor/gopkg.in/ini.v1/file.go generated vendored Normal file
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// Copyright 2017 Unknwon
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package ini
import (
"bytes"
"errors"
"fmt"
"io"
"io/ioutil"
"os"
"strings"
"sync"
)
// File represents a combination of a or more INI file(s) in memory.
type File struct {
options LoadOptions
dataSources []dataSource
// Should make things safe, but sometimes doesn't matter.
BlockMode bool
lock sync.RWMutex
// To keep data in order.
sectionList []string
// Actual data is stored here.
sections map[string]*Section
NameMapper
ValueMapper
}
// newFile initializes File object with given data sources.
func newFile(dataSources []dataSource, opts LoadOptions) *File {
if len(opts.KeyValueDelimiters) == 0 {
opts.KeyValueDelimiters = "=:"
}
if len(opts.KeyValueDelimiterOnWrite) == 0 {
opts.KeyValueDelimiterOnWrite = "="
}
return &File{
BlockMode: true,
dataSources: dataSources,
sections: make(map[string]*Section),
sectionList: make([]string, 0, 10),
options: opts,
}
}
// Empty returns an empty file object.
func Empty() *File {
// Ignore error here, we sure our data is good.
f, _ := Load([]byte(""))
return f
}
// NewSection creates a new section.
func (f *File) NewSection(name string) (*Section, error) {
if len(name) == 0 {
return nil, errors.New("error creating new section: empty section name")
} else if f.options.Insensitive && name != DefaultSection {
name = strings.ToLower(name)
}
if f.BlockMode {
f.lock.Lock()
defer f.lock.Unlock()
}
if inSlice(name, f.sectionList) {
return f.sections[name], nil
}
f.sectionList = append(f.sectionList, name)
f.sections[name] = newSection(f, name)
return f.sections[name], nil
}
// NewRawSection creates a new section with an unparseable body.
func (f *File) NewRawSection(name, body string) (*Section, error) {
section, err := f.NewSection(name)
if err != nil {
return nil, err
}
section.isRawSection = true
section.rawBody = body
return section, nil
}
// NewSections creates a list of sections.
func (f *File) NewSections(names ...string) (err error) {
for _, name := range names {
if _, err = f.NewSection(name); err != nil {
return err
}
}
return nil
}
// GetSection returns section by given name.
func (f *File) GetSection(name string) (*Section, error) {
if len(name) == 0 {
name = DefaultSection
}
if f.options.Insensitive {
name = strings.ToLower(name)
}
if f.BlockMode {
f.lock.RLock()
defer f.lock.RUnlock()
}
sec := f.sections[name]
if sec == nil {
return nil, fmt.Errorf("section '%s' does not exist", name)
}
return sec, nil
}
// Section assumes named section exists and returns a zero-value when not.
func (f *File) Section(name string) *Section {
sec, err := f.GetSection(name)
if err != nil {
// Note: It's OK here because the only possible error is empty section name,
// but if it's empty, this piece of code won't be executed.
sec, _ = f.NewSection(name)
return sec
}
return sec
}
// Sections returns a list of Section stored in the current instance.
func (f *File) Sections() []*Section {
if f.BlockMode {
f.lock.RLock()
defer f.lock.RUnlock()
}
sections := make([]*Section, len(f.sectionList))
for i, name := range f.sectionList {
sections[i] = f.sections[name]
}
return sections
}
// ChildSections returns a list of child sections of given section name.
func (f *File) ChildSections(name string) []*Section {
return f.Section(name).ChildSections()
}
// SectionStrings returns list of section names.
func (f *File) SectionStrings() []string {
list := make([]string, len(f.sectionList))
copy(list, f.sectionList)
return list
}
// DeleteSection deletes a section.
func (f *File) DeleteSection(name string) {
if f.BlockMode {
f.lock.Lock()
defer f.lock.Unlock()
}
if len(name) == 0 {
name = DefaultSection
}
for i, s := range f.sectionList {
if s == name {
f.sectionList = append(f.sectionList[:i], f.sectionList[i+1:]...)
delete(f.sections, name)
return
}
}
}
func (f *File) reload(s dataSource) error {
r, err := s.ReadCloser()
if err != nil {
return err
}
defer r.Close()
return f.parse(r)
}
// Reload reloads and parses all data sources.
func (f *File) Reload() (err error) {
for _, s := range f.dataSources {
if err = f.reload(s); err != nil {
// In loose mode, we create an empty default section for nonexistent files.
if os.IsNotExist(err) && f.options.Loose {
f.parse(bytes.NewBuffer(nil))
continue
}
return err
}
}
return nil
}
// Append appends one or more data sources and reloads automatically.
func (f *File) Append(source interface{}, others ...interface{}) error {
ds, err := parseDataSource(source)
if err != nil {
return err
}
f.dataSources = append(f.dataSources, ds)
for _, s := range others {
ds, err = parseDataSource(s)
if err != nil {
return err
}
f.dataSources = append(f.dataSources, ds)
}
return f.Reload()
}
func (f *File) writeToBuffer(indent string) (*bytes.Buffer, error) {
equalSign := DefaultFormatLeft + f.options.KeyValueDelimiterOnWrite + DefaultFormatRight
if PrettyFormat || PrettyEqual {
equalSign = fmt.Sprintf(" %s ", f.options.KeyValueDelimiterOnWrite)
}
// Use buffer to make sure target is safe until finish encoding.
buf := bytes.NewBuffer(nil)
for i, sname := range f.sectionList {
sec := f.Section(sname)
if len(sec.Comment) > 0 {
// Support multiline comments
lines := strings.Split(sec.Comment, LineBreak)
for i := range lines {
if lines[i][0] != '#' && lines[i][0] != ';' {
lines[i] = "; " + lines[i]
} else {
lines[i] = lines[i][:1] + " " + strings.TrimSpace(lines[i][1:])
}
if _, err := buf.WriteString(lines[i] + LineBreak); err != nil {
return nil, err
}
}
}
if i > 0 || DefaultHeader {
if _, err := buf.WriteString("[" + sname + "]" + LineBreak); err != nil {
return nil, err
}
} else {
// Write nothing if default section is empty
if len(sec.keyList) == 0 {
continue
}
}
if sec.isRawSection {
if _, err := buf.WriteString(sec.rawBody); err != nil {
return nil, err
}
if PrettySection {
// Put a line between sections
if _, err := buf.WriteString(LineBreak); err != nil {
return nil, err
}
}
continue
}
// Count and generate alignment length and buffer spaces using the
// longest key. Keys may be modifed if they contain certain characters so
// we need to take that into account in our calculation.
alignLength := 0
if PrettyFormat {
for _, kname := range sec.keyList {
keyLength := len(kname)
// First case will surround key by ` and second by """
if strings.Contains(kname, "\"") || strings.ContainsAny(kname, f.options.KeyValueDelimiters) {
keyLength += 2
} else if strings.Contains(kname, "`") {
keyLength += 6
}
if keyLength > alignLength {
alignLength = keyLength
}
}
}
alignSpaces := bytes.Repeat([]byte(" "), alignLength)
KeyList:
for _, kname := range sec.keyList {
key := sec.Key(kname)
if len(key.Comment) > 0 {
if len(indent) > 0 && sname != DefaultSection {
buf.WriteString(indent)
}
// Support multiline comments
lines := strings.Split(key.Comment, LineBreak)
for i := range lines {
if lines[i][0] != '#' && lines[i][0] != ';' {
lines[i] = "; " + strings.TrimSpace(lines[i])
} else {
lines[i] = lines[i][:1] + " " + strings.TrimSpace(lines[i][1:])
}
if _, err := buf.WriteString(lines[i] + LineBreak); err != nil {
return nil, err
}
}
}
if len(indent) > 0 && sname != DefaultSection {
buf.WriteString(indent)
}
switch {
case key.isAutoIncrement:
kname = "-"
case strings.Contains(kname, "\"") || strings.ContainsAny(kname, f.options.KeyValueDelimiters):
kname = "`" + kname + "`"
case strings.Contains(kname, "`"):
kname = `"""` + kname + `"""`
}
for _, val := range key.ValueWithShadows() {
if _, err := buf.WriteString(kname); err != nil {
return nil, err
}
if key.isBooleanType {
if kname != sec.keyList[len(sec.keyList)-1] {
buf.WriteString(LineBreak)
}
continue KeyList
}
// Write out alignment spaces before "=" sign
if PrettyFormat {
buf.Write(alignSpaces[:alignLength-len(kname)])
}
// In case key value contains "\n", "`", "\"", "#" or ";"
if strings.ContainsAny(val, "\n`") {
val = `"""` + val + `"""`
} else if !f.options.IgnoreInlineComment && strings.ContainsAny(val, "#;") {
val = "`" + val + "`"
}
if _, err := buf.WriteString(equalSign + val + LineBreak); err != nil {
return nil, err
}
}
for _, val := range key.nestedValues {
if _, err := buf.WriteString(indent + " " + val + LineBreak); err != nil {
return nil, err
}
}
}
if PrettySection {
// Put a line between sections
if _, err := buf.WriteString(LineBreak); err != nil {
return nil, err
}
}
}
return buf, nil
}
// WriteToIndent writes content into io.Writer with given indention.
// If PrettyFormat has been set to be true,
// it will align "=" sign with spaces under each section.
func (f *File) WriteToIndent(w io.Writer, indent string) (int64, error) {
buf, err := f.writeToBuffer(indent)
if err != nil {
return 0, err
}
return buf.WriteTo(w)
}
// WriteTo writes file content into io.Writer.
func (f *File) WriteTo(w io.Writer) (int64, error) {
return f.WriteToIndent(w, "")
}
// SaveToIndent writes content to file system with given value indention.
func (f *File) SaveToIndent(filename, indent string) error {
// Note: Because we are truncating with os.Create,
// so it's safer to save to a temporary file location and rename afte done.
buf, err := f.writeToBuffer(indent)
if err != nil {
return err
}
return ioutil.WriteFile(filename, buf.Bytes(), 0666)
}
// SaveTo writes content to file system.
func (f *File) SaveTo(filename string) error {
return f.SaveToIndent(filename, "")
}

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vendor/gopkg.in/ini.v1/helper.go generated vendored Normal file
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// Copyright 2019 Unknwon
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package ini
func inSlice(str string, s []string) bool {
for _, v := range s {
if str == v {
return true
}
}
return false
}

162
vendor/gopkg.in/ini.v1/ini.go generated vendored Normal file
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// +build go1.6
// Copyright 2014 Unknwon
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
// Package ini provides INI file read and write functionality in Go.
package ini
import (
"regexp"
"runtime"
)
const (
// DefaultSection is the name of default section. You can use this constant or the string literal.
// In most of cases, an empty string is all you need to access the section.
DefaultSection = "DEFAULT"
// Maximum allowed depth when recursively substituing variable names.
depthValues = 99
)
var (
// LineBreak is the delimiter to determine or compose a new line.
// This variable will be changed to "\r\n" automatically on Windows at package init time.
LineBreak = "\n"
// Variable regexp pattern: %(variable)s
varPattern = regexp.MustCompile(`%\(([^)]+)\)s`)
// DefaultHeader explicitly writes default section header.
DefaultHeader = false
// PrettySection indicates whether to put a line between sections.
PrettySection = true
// PrettyFormat indicates whether to align "=" sign with spaces to produce pretty output
// or reduce all possible spaces for compact format.
PrettyFormat = true
// PrettyEqual places spaces around "=" sign even when PrettyFormat is false.
PrettyEqual = false
// DefaultFormatLeft places custom spaces on the left when PrettyFormat and PrettyEqual are both disabled.
DefaultFormatLeft = ""
// DefaultFormatRight places custom spaces on the right when PrettyFormat and PrettyEqual are both disabled.
DefaultFormatRight = ""
)
func init() {
if runtime.GOOS == "windows" {
LineBreak = "\r\n"
}
}
// LoadOptions contains all customized options used for load data source(s).
type LoadOptions struct {
// Loose indicates whether the parser should ignore nonexistent files or return error.
Loose bool
// Insensitive indicates whether the parser forces all section and key names to lowercase.
Insensitive bool
// IgnoreContinuation indicates whether to ignore continuation lines while parsing.
IgnoreContinuation bool
// IgnoreInlineComment indicates whether to ignore comments at the end of value and treat it as part of value.
IgnoreInlineComment bool
// SkipUnrecognizableLines indicates whether to skip unrecognizable lines that do not conform to key/value pairs.
SkipUnrecognizableLines bool
// AllowBooleanKeys indicates whether to allow boolean type keys or treat as value is missing.
// This type of keys are mostly used in my.cnf.
AllowBooleanKeys bool
// AllowShadows indicates whether to keep track of keys with same name under same section.
AllowShadows bool
// AllowNestedValues indicates whether to allow AWS-like nested values.
// Docs: http://docs.aws.amazon.com/cli/latest/topic/config-vars.html#nested-values
AllowNestedValues bool
// AllowPythonMultilineValues indicates whether to allow Python-like multi-line values.
// Docs: https://docs.python.org/3/library/configparser.html#supported-ini-file-structure
// Relevant quote: Values can also span multiple lines, as long as they are indented deeper
// than the first line of the value.
AllowPythonMultilineValues bool
// SpaceBeforeInlineComment indicates whether to allow comment symbols (\# and \;) inside value.
// Docs: https://docs.python.org/2/library/configparser.html
// Quote: Comments may appear on their own in an otherwise empty line, or may be entered in lines holding values or section names.
// In the latter case, they need to be preceded by a whitespace character to be recognized as a comment.
SpaceBeforeInlineComment bool
// UnescapeValueDoubleQuotes indicates whether to unescape double quotes inside value to regular format
// when value is surrounded by double quotes, e.g. key="a \"value\"" => key=a "value"
UnescapeValueDoubleQuotes bool
// UnescapeValueCommentSymbols indicates to unescape comment symbols (\# and \;) inside value to regular format
// when value is NOT surrounded by any quotes.
// Note: UNSTABLE, behavior might change to only unescape inside double quotes but may noy necessary at all.
UnescapeValueCommentSymbols bool
// UnparseableSections stores a list of blocks that are allowed with raw content which do not otherwise
// conform to key/value pairs. Specify the names of those blocks here.
UnparseableSections []string
// KeyValueDelimiters is the sequence of delimiters that are used to separate key and value. By default, it is "=:".
KeyValueDelimiters string
// KeyValueDelimiters is the delimiter that are used to separate key and value output. By default, it is "=".
KeyValueDelimiterOnWrite string
// PreserveSurroundedQuote indicates whether to preserve surrounded quote (single and double quotes).
PreserveSurroundedQuote bool
// DebugFunc is called to collect debug information (currently only useful to debug parsing Python-style multiline values).
DebugFunc DebugFunc
// ReaderBufferSize is the buffer size of the reader in bytes.
ReaderBufferSize int
}
// DebugFunc is the type of function called to log parse events.
type DebugFunc func(message string)
// LoadSources allows caller to apply customized options for loading from data source(s).
func LoadSources(opts LoadOptions, source interface{}, others ...interface{}) (_ *File, err error) {
sources := make([]dataSource, len(others)+1)
sources[0], err = parseDataSource(source)
if err != nil {
return nil, err
}
for i := range others {
sources[i+1], err = parseDataSource(others[i])
if err != nil {
return nil, err
}
}
f := newFile(sources, opts)
if err = f.Reload(); err != nil {
return nil, err
}
return f, nil
}
// Load loads and parses from INI data sources.
// Arguments can be mixed of file name with string type, or raw data in []byte.
// It will return error if list contains nonexistent files.
func Load(source interface{}, others ...interface{}) (*File, error) {
return LoadSources(LoadOptions{}, source, others...)
}
// LooseLoad has exactly same functionality as Load function
// except it ignores nonexistent files instead of returning error.
func LooseLoad(source interface{}, others ...interface{}) (*File, error) {
return LoadSources(LoadOptions{Loose: true}, source, others...)
}
// InsensitiveLoad has exactly same functionality as Load function
// except it forces all section and key names to be lowercased.
func InsensitiveLoad(source interface{}, others ...interface{}) (*File, error) {
return LoadSources(LoadOptions{Insensitive: true}, source, others...)
}
// ShadowLoad has exactly same functionality as Load function
// except it allows have shadow keys.
func ShadowLoad(source interface{}, others ...interface{}) (*File, error) {
return LoadSources(LoadOptions{AllowShadows: true}, source, others...)
}

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vendor/gopkg.in/ini.v1/key.go generated vendored Normal file
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@ -0,0 +1,801 @@
// Copyright 2014 Unknwon
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package ini
import (
"bytes"
"errors"
"fmt"
"strconv"
"strings"
"time"
)
// Key represents a key under a section.
type Key struct {
s *Section
Comment string
name string
value string
isAutoIncrement bool
isBooleanType bool
isShadow bool
shadows []*Key
nestedValues []string
}
// newKey simply return a key object with given values.
func newKey(s *Section, name, val string) *Key {
return &Key{
s: s,
name: name,
value: val,
}
}
func (k *Key) addShadow(val string) error {
if k.isShadow {
return errors.New("cannot add shadow to another shadow key")
} else if k.isAutoIncrement || k.isBooleanType {
return errors.New("cannot add shadow to auto-increment or boolean key")
}
// Deduplicate shadows based on their values.
if k.value == val {
return nil
}
for i := range k.shadows {
if k.shadows[i].value == val {
return nil
}
}
shadow := newKey(k.s, k.name, val)
shadow.isShadow = true
k.shadows = append(k.shadows, shadow)
return nil
}
// AddShadow adds a new shadow key to itself.
func (k *Key) AddShadow(val string) error {
if !k.s.f.options.AllowShadows {
return errors.New("shadow key is not allowed")
}
return k.addShadow(val)
}
func (k *Key) addNestedValue(val string) error {
if k.isAutoIncrement || k.isBooleanType {
return errors.New("cannot add nested value to auto-increment or boolean key")
}
k.nestedValues = append(k.nestedValues, val)
return nil
}
// AddNestedValue adds a nested value to the key.
func (k *Key) AddNestedValue(val string) error {
if !k.s.f.options.AllowNestedValues {
return errors.New("nested value is not allowed")
}
return k.addNestedValue(val)
}
// ValueMapper represents a mapping function for values, e.g. os.ExpandEnv
type ValueMapper func(string) string
// Name returns name of key.
func (k *Key) Name() string {
return k.name
}
// Value returns raw value of key for performance purpose.
func (k *Key) Value() string {
return k.value
}
// ValueWithShadows returns raw values of key and its shadows if any.
func (k *Key) ValueWithShadows() []string {
if len(k.shadows) == 0 {
return []string{k.value}
}
vals := make([]string, len(k.shadows)+1)
vals[0] = k.value
for i := range k.shadows {
vals[i+1] = k.shadows[i].value
}
return vals
}
// NestedValues returns nested values stored in the key.
// It is possible returned value is nil if no nested values stored in the key.
func (k *Key) NestedValues() []string {
return k.nestedValues
}
// transformValue takes a raw value and transforms to its final string.
func (k *Key) transformValue(val string) string {
if k.s.f.ValueMapper != nil {
val = k.s.f.ValueMapper(val)
}
// Fail-fast if no indicate char found for recursive value
if !strings.Contains(val, "%") {
return val
}
for i := 0; i < depthValues; i++ {
vr := varPattern.FindString(val)
if len(vr) == 0 {
break
}
// Take off leading '%(' and trailing ')s'.
noption := vr[2 : len(vr)-2]
// Search in the same section.
// If not found or found the key itself, then search again in default section.
nk, err := k.s.GetKey(noption)
if err != nil || k == nk {
nk, _ = k.s.f.Section("").GetKey(noption)
if nk == nil {
// Stop when no results found in the default section,
// and returns the value as-is.
break
}
}
// Substitute by new value and take off leading '%(' and trailing ')s'.
val = strings.Replace(val, vr, nk.value, -1)
}
return val
}
// String returns string representation of value.
func (k *Key) String() string {
return k.transformValue(k.value)
}
// Validate accepts a validate function which can
// return modifed result as key value.
func (k *Key) Validate(fn func(string) string) string {
return fn(k.String())
}
// parseBool returns the boolean value represented by the string.
//
// It accepts 1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On,
// 0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off.
// Any other value returns an error.
func parseBool(str string) (value bool, err error) {
switch str {
case "1", "t", "T", "true", "TRUE", "True", "YES", "yes", "Yes", "y", "ON", "on", "On":
return true, nil
case "0", "f", "F", "false", "FALSE", "False", "NO", "no", "No", "n", "OFF", "off", "Off":
return false, nil
}
return false, fmt.Errorf("parsing \"%s\": invalid syntax", str)
}
// Bool returns bool type value.
func (k *Key) Bool() (bool, error) {
return parseBool(k.String())
}
// Float64 returns float64 type value.
func (k *Key) Float64() (float64, error) {
return strconv.ParseFloat(k.String(), 64)
}
// Int returns int type value.
func (k *Key) Int() (int, error) {
v, err := strconv.ParseInt(k.String(), 0, 64)
return int(v), err
}
// Int64 returns int64 type value.
func (k *Key) Int64() (int64, error) {
return strconv.ParseInt(k.String(), 0, 64)
}
// Uint returns uint type valued.
func (k *Key) Uint() (uint, error) {
u, e := strconv.ParseUint(k.String(), 0, 64)
return uint(u), e
}
// Uint64 returns uint64 type value.
func (k *Key) Uint64() (uint64, error) {
return strconv.ParseUint(k.String(), 0, 64)
}
// Duration returns time.Duration type value.
func (k *Key) Duration() (time.Duration, error) {
return time.ParseDuration(k.String())
}
// TimeFormat parses with given format and returns time.Time type value.
func (k *Key) TimeFormat(format string) (time.Time, error) {
return time.Parse(format, k.String())
}
// Time parses with RFC3339 format and returns time.Time type value.
func (k *Key) Time() (time.Time, error) {
return k.TimeFormat(time.RFC3339)
}
// MustString returns default value if key value is empty.
func (k *Key) MustString(defaultVal string) string {
val := k.String()
if len(val) == 0 {
k.value = defaultVal
return defaultVal
}
return val
}
// MustBool always returns value without error,
// it returns false if error occurs.
func (k *Key) MustBool(defaultVal ...bool) bool {
val, err := k.Bool()
if len(defaultVal) > 0 && err != nil {
k.value = strconv.FormatBool(defaultVal[0])
return defaultVal[0]
}
return val
}
// MustFloat64 always returns value without error,
// it returns 0.0 if error occurs.
func (k *Key) MustFloat64(defaultVal ...float64) float64 {
val, err := k.Float64()
if len(defaultVal) > 0 && err != nil {
k.value = strconv.FormatFloat(defaultVal[0], 'f', -1, 64)
return defaultVal[0]
}
return val
}
// MustInt always returns value without error,
// it returns 0 if error occurs.
func (k *Key) MustInt(defaultVal ...int) int {
val, err := k.Int()
if len(defaultVal) > 0 && err != nil {
k.value = strconv.FormatInt(int64(defaultVal[0]), 10)
return defaultVal[0]
}
return val
}
// MustInt64 always returns value without error,
// it returns 0 if error occurs.
func (k *Key) MustInt64(defaultVal ...int64) int64 {
val, err := k.Int64()
if len(defaultVal) > 0 && err != nil {
k.value = strconv.FormatInt(defaultVal[0], 10)
return defaultVal[0]
}
return val
}
// MustUint always returns value without error,
// it returns 0 if error occurs.
func (k *Key) MustUint(defaultVal ...uint) uint {
val, err := k.Uint()
if len(defaultVal) > 0 && err != nil {
k.value = strconv.FormatUint(uint64(defaultVal[0]), 10)
return defaultVal[0]
}
return val
}
// MustUint64 always returns value without error,
// it returns 0 if error occurs.
func (k *Key) MustUint64(defaultVal ...uint64) uint64 {
val, err := k.Uint64()
if len(defaultVal) > 0 && err != nil {
k.value = strconv.FormatUint(defaultVal[0], 10)
return defaultVal[0]
}
return val
}
// MustDuration always returns value without error,
// it returns zero value if error occurs.
func (k *Key) MustDuration(defaultVal ...time.Duration) time.Duration {
val, err := k.Duration()
if len(defaultVal) > 0 && err != nil {
k.value = defaultVal[0].String()
return defaultVal[0]
}
return val
}
// MustTimeFormat always parses with given format and returns value without error,
// it returns zero value if error occurs.
func (k *Key) MustTimeFormat(format string, defaultVal ...time.Time) time.Time {
val, err := k.TimeFormat(format)
if len(defaultVal) > 0 && err != nil {
k.value = defaultVal[0].Format(format)
return defaultVal[0]
}
return val
}
// MustTime always parses with RFC3339 format and returns value without error,
// it returns zero value if error occurs.
func (k *Key) MustTime(defaultVal ...time.Time) time.Time {
return k.MustTimeFormat(time.RFC3339, defaultVal...)
}
// In always returns value without error,
// it returns default value if error occurs or doesn't fit into candidates.
func (k *Key) In(defaultVal string, candidates []string) string {
val := k.String()
for _, cand := range candidates {
if val == cand {
return val
}
}
return defaultVal
}
// InFloat64 always returns value without error,
// it returns default value if error occurs or doesn't fit into candidates.
func (k *Key) InFloat64(defaultVal float64, candidates []float64) float64 {
val := k.MustFloat64()
for _, cand := range candidates {
if val == cand {
return val
}
}
return defaultVal
}
// InInt always returns value without error,
// it returns default value if error occurs or doesn't fit into candidates.
func (k *Key) InInt(defaultVal int, candidates []int) int {
val := k.MustInt()
for _, cand := range candidates {
if val == cand {
return val
}
}
return defaultVal
}
// InInt64 always returns value without error,
// it returns default value if error occurs or doesn't fit into candidates.
func (k *Key) InInt64(defaultVal int64, candidates []int64) int64 {
val := k.MustInt64()
for _, cand := range candidates {
if val == cand {
return val
}
}
return defaultVal
}
// InUint always returns value without error,
// it returns default value if error occurs or doesn't fit into candidates.
func (k *Key) InUint(defaultVal uint, candidates []uint) uint {
val := k.MustUint()
for _, cand := range candidates {
if val == cand {
return val
}
}
return defaultVal
}
// InUint64 always returns value without error,
// it returns default value if error occurs or doesn't fit into candidates.
func (k *Key) InUint64(defaultVal uint64, candidates []uint64) uint64 {
val := k.MustUint64()
for _, cand := range candidates {
if val == cand {
return val
}
}
return defaultVal
}
// InTimeFormat always parses with given format and returns value without error,
// it returns default value if error occurs or doesn't fit into candidates.
func (k *Key) InTimeFormat(format string, defaultVal time.Time, candidates []time.Time) time.Time {
val := k.MustTimeFormat(format)
for _, cand := range candidates {
if val == cand {
return val
}
}
return defaultVal
}
// InTime always parses with RFC3339 format and returns value without error,
// it returns default value if error occurs or doesn't fit into candidates.
func (k *Key) InTime(defaultVal time.Time, candidates []time.Time) time.Time {
return k.InTimeFormat(time.RFC3339, defaultVal, candidates)
}
// RangeFloat64 checks if value is in given range inclusively,
// and returns default value if it's not.
func (k *Key) RangeFloat64(defaultVal, min, max float64) float64 {
val := k.MustFloat64()
if val < min || val > max {
return defaultVal
}
return val
}
// RangeInt checks if value is in given range inclusively,
// and returns default value if it's not.
func (k *Key) RangeInt(defaultVal, min, max int) int {
val := k.MustInt()
if val < min || val > max {
return defaultVal
}
return val
}
// RangeInt64 checks if value is in given range inclusively,
// and returns default value if it's not.
func (k *Key) RangeInt64(defaultVal, min, max int64) int64 {
val := k.MustInt64()
if val < min || val > max {
return defaultVal
}
return val
}
// RangeTimeFormat checks if value with given format is in given range inclusively,
// and returns default value if it's not.
func (k *Key) RangeTimeFormat(format string, defaultVal, min, max time.Time) time.Time {
val := k.MustTimeFormat(format)
if val.Unix() < min.Unix() || val.Unix() > max.Unix() {
return defaultVal
}
return val
}
// RangeTime checks if value with RFC3339 format is in given range inclusively,
// and returns default value if it's not.
func (k *Key) RangeTime(defaultVal, min, max time.Time) time.Time {
return k.RangeTimeFormat(time.RFC3339, defaultVal, min, max)
}
// Strings returns list of string divided by given delimiter.
func (k *Key) Strings(delim string) []string {
str := k.String()
if len(str) == 0 {
return []string{}
}
runes := []rune(str)
vals := make([]string, 0, 2)
var buf bytes.Buffer
escape := false
idx := 0
for {
if escape {
escape = false
if runes[idx] != '\\' && !strings.HasPrefix(string(runes[idx:]), delim) {
buf.WriteRune('\\')
}
buf.WriteRune(runes[idx])
} else {
if runes[idx] == '\\' {
escape = true
} else if strings.HasPrefix(string(runes[idx:]), delim) {
idx += len(delim) - 1
vals = append(vals, strings.TrimSpace(buf.String()))
buf.Reset()
} else {
buf.WriteRune(runes[idx])
}
}
idx++
if idx == len(runes) {
break
}
}
if buf.Len() > 0 {
vals = append(vals, strings.TrimSpace(buf.String()))
}
return vals
}
// StringsWithShadows returns list of string divided by given delimiter.
// Shadows will also be appended if any.
func (k *Key) StringsWithShadows(delim string) []string {
vals := k.ValueWithShadows()
results := make([]string, 0, len(vals)*2)
for i := range vals {
if len(vals) == 0 {
continue
}
results = append(results, strings.Split(vals[i], delim)...)
}
for i := range results {
results[i] = k.transformValue(strings.TrimSpace(results[i]))
}
return results
}
// Float64s returns list of float64 divided by given delimiter. Any invalid input will be treated as zero value.
func (k *Key) Float64s(delim string) []float64 {
vals, _ := k.parseFloat64s(k.Strings(delim), true, false)
return vals
}
// Ints returns list of int divided by given delimiter. Any invalid input will be treated as zero value.
func (k *Key) Ints(delim string) []int {
vals, _ := k.parseInts(k.Strings(delim), true, false)
return vals
}
// Int64s returns list of int64 divided by given delimiter. Any invalid input will be treated as zero value.
func (k *Key) Int64s(delim string) []int64 {
vals, _ := k.parseInt64s(k.Strings(delim), true, false)
return vals
}
// Uints returns list of uint divided by given delimiter. Any invalid input will be treated as zero value.
func (k *Key) Uints(delim string) []uint {
vals, _ := k.parseUints(k.Strings(delim), true, false)
return vals
}
// Uint64s returns list of uint64 divided by given delimiter. Any invalid input will be treated as zero value.
func (k *Key) Uint64s(delim string) []uint64 {
vals, _ := k.parseUint64s(k.Strings(delim), true, false)
return vals
}
// Bools returns list of bool divided by given delimiter. Any invalid input will be treated as zero value.
func (k *Key) Bools(delim string) []bool {
vals, _ := k.parseBools(k.Strings(delim), true, false)
return vals
}
// TimesFormat parses with given format and returns list of time.Time divided by given delimiter.
// Any invalid input will be treated as zero value (0001-01-01 00:00:00 +0000 UTC).
func (k *Key) TimesFormat(format, delim string) []time.Time {
vals, _ := k.parseTimesFormat(format, k.Strings(delim), true, false)
return vals
}
// Times parses with RFC3339 format and returns list of time.Time divided by given delimiter.
// Any invalid input will be treated as zero value (0001-01-01 00:00:00 +0000 UTC).
func (k *Key) Times(delim string) []time.Time {
return k.TimesFormat(time.RFC3339, delim)
}
// ValidFloat64s returns list of float64 divided by given delimiter. If some value is not float, then
// it will not be included to result list.
func (k *Key) ValidFloat64s(delim string) []float64 {
vals, _ := k.parseFloat64s(k.Strings(delim), false, false)
return vals
}
// ValidInts returns list of int divided by given delimiter. If some value is not integer, then it will
// not be included to result list.
func (k *Key) ValidInts(delim string) []int {
vals, _ := k.parseInts(k.Strings(delim), false, false)
return vals
}
// ValidInt64s returns list of int64 divided by given delimiter. If some value is not 64-bit integer,
// then it will not be included to result list.
func (k *Key) ValidInt64s(delim string) []int64 {
vals, _ := k.parseInt64s(k.Strings(delim), false, false)
return vals
}
// ValidUints returns list of uint divided by given delimiter. If some value is not unsigned integer,
// then it will not be included to result list.
func (k *Key) ValidUints(delim string) []uint {
vals, _ := k.parseUints(k.Strings(delim), false, false)
return vals
}
// ValidUint64s returns list of uint64 divided by given delimiter. If some value is not 64-bit unsigned
// integer, then it will not be included to result list.
func (k *Key) ValidUint64s(delim string) []uint64 {
vals, _ := k.parseUint64s(k.Strings(delim), false, false)
return vals
}
// ValidBools returns list of bool divided by given delimiter. If some value is not 64-bit unsigned
// integer, then it will not be included to result list.
func (k *Key) ValidBools(delim string) []bool {
vals, _ := k.parseBools(k.Strings(delim), false, false)
return vals
}
// ValidTimesFormat parses with given format and returns list of time.Time divided by given delimiter.
func (k *Key) ValidTimesFormat(format, delim string) []time.Time {
vals, _ := k.parseTimesFormat(format, k.Strings(delim), false, false)
return vals
}
// ValidTimes parses with RFC3339 format and returns list of time.Time divided by given delimiter.
func (k *Key) ValidTimes(delim string) []time.Time {
return k.ValidTimesFormat(time.RFC3339, delim)
}
// StrictFloat64s returns list of float64 divided by given delimiter or error on first invalid input.
func (k *Key) StrictFloat64s(delim string) ([]float64, error) {
return k.parseFloat64s(k.Strings(delim), false, true)
}
// StrictInts returns list of int divided by given delimiter or error on first invalid input.
func (k *Key) StrictInts(delim string) ([]int, error) {
return k.parseInts(k.Strings(delim), false, true)
}
// StrictInt64s returns list of int64 divided by given delimiter or error on first invalid input.
func (k *Key) StrictInt64s(delim string) ([]int64, error) {
return k.parseInt64s(k.Strings(delim), false, true)
}
// StrictUints returns list of uint divided by given delimiter or error on first invalid input.
func (k *Key) StrictUints(delim string) ([]uint, error) {
return k.parseUints(k.Strings(delim), false, true)
}
// StrictUint64s returns list of uint64 divided by given delimiter or error on first invalid input.
func (k *Key) StrictUint64s(delim string) ([]uint64, error) {
return k.parseUint64s(k.Strings(delim), false, true)
}
// StrictBools returns list of bool divided by given delimiter or error on first invalid input.
func (k *Key) StrictBools(delim string) ([]bool, error) {
return k.parseBools(k.Strings(delim), false, true)
}
// StrictTimesFormat parses with given format and returns list of time.Time divided by given delimiter
// or error on first invalid input.
func (k *Key) StrictTimesFormat(format, delim string) ([]time.Time, error) {
return k.parseTimesFormat(format, k.Strings(delim), false, true)
}
// StrictTimes parses with RFC3339 format and returns list of time.Time divided by given delimiter
// or error on first invalid input.
func (k *Key) StrictTimes(delim string) ([]time.Time, error) {
return k.StrictTimesFormat(time.RFC3339, delim)
}
// parseBools transforms strings to bools.
func (k *Key) parseBools(strs []string, addInvalid, returnOnInvalid bool) ([]bool, error) {
vals := make([]bool, 0, len(strs))
for _, str := range strs {
val, err := parseBool(str)
if err != nil && returnOnInvalid {
return nil, err
}
if err == nil || addInvalid {
vals = append(vals, val)
}
}
return vals, nil
}
// parseFloat64s transforms strings to float64s.
func (k *Key) parseFloat64s(strs []string, addInvalid, returnOnInvalid bool) ([]float64, error) {
vals := make([]float64, 0, len(strs))
for _, str := range strs {
val, err := strconv.ParseFloat(str, 64)
if err != nil && returnOnInvalid {
return nil, err
}
if err == nil || addInvalid {
vals = append(vals, val)
}
}
return vals, nil
}
// parseInts transforms strings to ints.
func (k *Key) parseInts(strs []string, addInvalid, returnOnInvalid bool) ([]int, error) {
vals := make([]int, 0, len(strs))
for _, str := range strs {
valInt64, err := strconv.ParseInt(str, 0, 64)
val := int(valInt64)
if err != nil && returnOnInvalid {
return nil, err
}
if err == nil || addInvalid {
vals = append(vals, val)
}
}
return vals, nil
}
// parseInt64s transforms strings to int64s.
func (k *Key) parseInt64s(strs []string, addInvalid, returnOnInvalid bool) ([]int64, error) {
vals := make([]int64, 0, len(strs))
for _, str := range strs {
val, err := strconv.ParseInt(str, 0, 64)
if err != nil && returnOnInvalid {
return nil, err
}
if err == nil || addInvalid {
vals = append(vals, val)
}
}
return vals, nil
}
// parseUints transforms strings to uints.
func (k *Key) parseUints(strs []string, addInvalid, returnOnInvalid bool) ([]uint, error) {
vals := make([]uint, 0, len(strs))
for _, str := range strs {
val, err := strconv.ParseUint(str, 0, 0)
if err != nil && returnOnInvalid {
return nil, err
}
if err == nil || addInvalid {
vals = append(vals, uint(val))
}
}
return vals, nil
}
// parseUint64s transforms strings to uint64s.
func (k *Key) parseUint64s(strs []string, addInvalid, returnOnInvalid bool) ([]uint64, error) {
vals := make([]uint64, 0, len(strs))
for _, str := range strs {
val, err := strconv.ParseUint(str, 0, 64)
if err != nil && returnOnInvalid {
return nil, err
}
if err == nil || addInvalid {
vals = append(vals, val)
}
}
return vals, nil
}
// parseTimesFormat transforms strings to times in given format.
func (k *Key) parseTimesFormat(format string, strs []string, addInvalid, returnOnInvalid bool) ([]time.Time, error) {
vals := make([]time.Time, 0, len(strs))
for _, str := range strs {
val, err := time.Parse(format, str)
if err != nil && returnOnInvalid {
return nil, err
}
if err == nil || addInvalid {
vals = append(vals, val)
}
}
return vals, nil
}
// SetValue changes key value.
func (k *Key) SetValue(v string) {
if k.s.f.BlockMode {
k.s.f.lock.Lock()
defer k.s.f.lock.Unlock()
}
k.value = v
k.s.keysHash[k.name] = v
}

526
vendor/gopkg.in/ini.v1/parser.go generated vendored Normal file
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@ -0,0 +1,526 @@
// Copyright 2015 Unknwon
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package ini
import (
"bufio"
"bytes"
"fmt"
"io"
"regexp"
"strconv"
"strings"
"unicode"
)
const minReaderBufferSize = 4096
var pythonMultiline = regexp.MustCompile(`^([\t\f ]+)(.*)`)
type parserOptions struct {
IgnoreContinuation bool
IgnoreInlineComment bool
AllowPythonMultilineValues bool
SpaceBeforeInlineComment bool
UnescapeValueDoubleQuotes bool
UnescapeValueCommentSymbols bool
PreserveSurroundedQuote bool
DebugFunc DebugFunc
ReaderBufferSize int
}
type parser struct {
buf *bufio.Reader
options parserOptions
isEOF bool
count int
comment *bytes.Buffer
}
func (p *parser) debug(format string, args ...interface{}) {
if p.options.DebugFunc != nil {
p.options.DebugFunc(fmt.Sprintf(format, args...))
}
}
func newParser(r io.Reader, opts parserOptions) *parser {
size := opts.ReaderBufferSize
if size < minReaderBufferSize {
size = minReaderBufferSize
}
return &parser{
buf: bufio.NewReaderSize(r, size),
options: opts,
count: 1,
comment: &bytes.Buffer{},
}
}
// BOM handles header of UTF-8, UTF-16 LE and UTF-16 BE's BOM format.
// http://en.wikipedia.org/wiki/Byte_order_mark#Representations_of_byte_order_marks_by_encoding
func (p *parser) BOM() error {
mask, err := p.buf.Peek(2)
if err != nil && err != io.EOF {
return err
} else if len(mask) < 2 {
return nil
}
switch {
case mask[0] == 254 && mask[1] == 255:
fallthrough
case mask[0] == 255 && mask[1] == 254:
p.buf.Read(mask)
case mask[0] == 239 && mask[1] == 187:
mask, err := p.buf.Peek(3)
if err != nil && err != io.EOF {
return err
} else if len(mask) < 3 {
return nil
}
if mask[2] == 191 {
p.buf.Read(mask)
}
}
return nil
}
func (p *parser) readUntil(delim byte) ([]byte, error) {
data, err := p.buf.ReadBytes(delim)
if err != nil {
if err == io.EOF {
p.isEOF = true
} else {
return nil, err
}
}
return data, nil
}
func cleanComment(in []byte) ([]byte, bool) {
i := bytes.IndexAny(in, "#;")
if i == -1 {
return nil, false
}
return in[i:], true
}
func readKeyName(delimiters string, in []byte) (string, int, error) {
line := string(in)
// Check if key name surrounded by quotes.
var keyQuote string
if line[0] == '"' {
if len(line) > 6 && string(line[0:3]) == `"""` {
keyQuote = `"""`
} else {
keyQuote = `"`
}
} else if line[0] == '`' {
keyQuote = "`"
}
// Get out key name
endIdx := -1
if len(keyQuote) > 0 {
startIdx := len(keyQuote)
// FIXME: fail case -> """"""name"""=value
pos := strings.Index(line[startIdx:], keyQuote)
if pos == -1 {
return "", -1, fmt.Errorf("missing closing key quote: %s", line)
}
pos += startIdx
// Find key-value delimiter
i := strings.IndexAny(line[pos+startIdx:], delimiters)
if i < 0 {
return "", -1, ErrDelimiterNotFound{line}
}
endIdx = pos + i
return strings.TrimSpace(line[startIdx:pos]), endIdx + startIdx + 1, nil
}
endIdx = strings.IndexAny(line, delimiters)
if endIdx < 0 {
return "", -1, ErrDelimiterNotFound{line}
}
return strings.TrimSpace(line[0:endIdx]), endIdx + 1, nil
}
func (p *parser) readMultilines(line, val, valQuote string) (string, error) {
for {
data, err := p.readUntil('\n')
if err != nil {
return "", err
}
next := string(data)
pos := strings.LastIndex(next, valQuote)
if pos > -1 {
val += next[:pos]
comment, has := cleanComment([]byte(next[pos:]))
if has {
p.comment.Write(bytes.TrimSpace(comment))
}
break
}
val += next
if p.isEOF {
return "", fmt.Errorf("missing closing key quote from '%s' to '%s'", line, next)
}
}
return val, nil
}
func (p *parser) readContinuationLines(val string) (string, error) {
for {
data, err := p.readUntil('\n')
if err != nil {
return "", err
}
next := strings.TrimSpace(string(data))
if len(next) == 0 {
break
}
val += next
if val[len(val)-1] != '\\' {
break
}
val = val[:len(val)-1]
}
return val, nil
}
// hasSurroundedQuote check if and only if the first and last characters
// are quotes \" or \'.
// It returns false if any other parts also contain same kind of quotes.
func hasSurroundedQuote(in string, quote byte) bool {
return len(in) >= 2 && in[0] == quote && in[len(in)-1] == quote &&
strings.IndexByte(in[1:], quote) == len(in)-2
}
func (p *parser) readValue(in []byte, bufferSize int) (string, error) {
line := strings.TrimLeftFunc(string(in), unicode.IsSpace)
if len(line) == 0 {
if p.options.AllowPythonMultilineValues && len(in) > 0 && in[len(in)-1] == '\n' {
return p.readPythonMultilines(line, bufferSize)
}
return "", nil
}
var valQuote string
if len(line) > 3 && string(line[0:3]) == `"""` {
valQuote = `"""`
} else if line[0] == '`' {
valQuote = "`"
} else if p.options.UnescapeValueDoubleQuotes && line[0] == '"' {
valQuote = `"`
}
if len(valQuote) > 0 {
startIdx := len(valQuote)
pos := strings.LastIndex(line[startIdx:], valQuote)
// Check for multi-line value
if pos == -1 {
return p.readMultilines(line, line[startIdx:], valQuote)
}
if p.options.UnescapeValueDoubleQuotes && valQuote == `"` {
return strings.Replace(line[startIdx:pos+startIdx], `\"`, `"`, -1), nil
}
return line[startIdx : pos+startIdx], nil
}
lastChar := line[len(line)-1]
// Won't be able to reach here if value only contains whitespace
line = strings.TrimSpace(line)
trimmedLastChar := line[len(line)-1]
// Check continuation lines when desired
if !p.options.IgnoreContinuation && trimmedLastChar == '\\' {
return p.readContinuationLines(line[:len(line)-1])
}
// Check if ignore inline comment
if !p.options.IgnoreInlineComment {
var i int
if p.options.SpaceBeforeInlineComment {
i = strings.Index(line, " #")
if i == -1 {
i = strings.Index(line, " ;")
}
} else {
i = strings.IndexAny(line, "#;")
}
if i > -1 {
p.comment.WriteString(line[i:])
line = strings.TrimSpace(line[:i])
}
}
// Trim single and double quotes
if (hasSurroundedQuote(line, '\'') ||
hasSurroundedQuote(line, '"')) && !p.options.PreserveSurroundedQuote {
line = line[1 : len(line)-1]
} else if len(valQuote) == 0 && p.options.UnescapeValueCommentSymbols {
if strings.Contains(line, `\;`) {
line = strings.Replace(line, `\;`, ";", -1)
}
if strings.Contains(line, `\#`) {
line = strings.Replace(line, `\#`, "#", -1)
}
} else if p.options.AllowPythonMultilineValues && lastChar == '\n' {
return p.readPythonMultilines(line, bufferSize)
}
return line, nil
}
func (p *parser) readPythonMultilines(line string, bufferSize int) (string, error) {
parserBufferPeekResult, _ := p.buf.Peek(bufferSize)
peekBuffer := bytes.NewBuffer(parserBufferPeekResult)
indentSize := 0
for {
peekData, peekErr := peekBuffer.ReadBytes('\n')
if peekErr != nil {
if peekErr == io.EOF {
p.debug("readPythonMultilines: io.EOF, peekData: %q, line: %q", string(peekData), line)
return line, nil
}
p.debug("readPythonMultilines: failed to peek with error: %v", peekErr)
return "", peekErr
}
p.debug("readPythonMultilines: parsing %q", string(peekData))
peekMatches := pythonMultiline.FindStringSubmatch(string(peekData))
p.debug("readPythonMultilines: matched %d parts", len(peekMatches))
for n, v := range peekMatches {
p.debug(" %d: %q", n, v)
}
// Return if not a Python multiline value.
if len(peekMatches) != 3 {
p.debug("readPythonMultilines: end of value, got: %q", line)
return line, nil
}
// Determine indent size and line prefix.
currentIndentSize := len(peekMatches[1])
if indentSize < 1 {
indentSize = currentIndentSize
p.debug("readPythonMultilines: indent size is %d", indentSize)
}
// Make sure each line is indented at least as far as first line.
if currentIndentSize < indentSize {
p.debug("readPythonMultilines: end of value, current indent: %d, expected indent: %d, line: %q", currentIndentSize, indentSize, line)
return line, nil
}
// Advance the parser reader (buffer) in-sync with the peek buffer.
_, err := p.buf.Discard(len(peekData))
if err != nil {
p.debug("readPythonMultilines: failed to skip to the end, returning error")
return "", err
}
// Handle indented empty line.
line += "\n" + peekMatches[1][indentSize:] + peekMatches[2]
}
}
// parse parses data through an io.Reader.
func (f *File) parse(reader io.Reader) (err error) {
p := newParser(reader, parserOptions{
IgnoreContinuation: f.options.IgnoreContinuation,
IgnoreInlineComment: f.options.IgnoreInlineComment,
AllowPythonMultilineValues: f.options.AllowPythonMultilineValues,
SpaceBeforeInlineComment: f.options.SpaceBeforeInlineComment,
UnescapeValueDoubleQuotes: f.options.UnescapeValueDoubleQuotes,
UnescapeValueCommentSymbols: f.options.UnescapeValueCommentSymbols,
PreserveSurroundedQuote: f.options.PreserveSurroundedQuote,
DebugFunc: f.options.DebugFunc,
ReaderBufferSize: f.options.ReaderBufferSize,
})
if err = p.BOM(); err != nil {
return fmt.Errorf("BOM: %v", err)
}
// Ignore error because default section name is never empty string.
name := DefaultSection
if f.options.Insensitive {
name = strings.ToLower(DefaultSection)
}
section, _ := f.NewSection(name)
// This "last" is not strictly equivalent to "previous one" if current key is not the first nested key
var isLastValueEmpty bool
var lastRegularKey *Key
var line []byte
var inUnparseableSection bool
// NOTE: Iterate and increase `currentPeekSize` until
// the size of the parser buffer is found.
// TODO(unknwon): When Golang 1.10 is the lowest version supported, replace with `parserBufferSize := p.buf.Size()`.
parserBufferSize := 0
// NOTE: Peek 4kb at a time.
currentPeekSize := minReaderBufferSize
if f.options.AllowPythonMultilineValues {
for {
peekBytes, _ := p.buf.Peek(currentPeekSize)
peekBytesLength := len(peekBytes)
if parserBufferSize >= peekBytesLength {
break
}
currentPeekSize *= 2
parserBufferSize = peekBytesLength
}
}
for !p.isEOF {
line, err = p.readUntil('\n')
if err != nil {
return err
}
if f.options.AllowNestedValues &&
isLastValueEmpty && len(line) > 0 {
if line[0] == ' ' || line[0] == '\t' {
lastRegularKey.addNestedValue(string(bytes.TrimSpace(line)))
continue
}
}
line = bytes.TrimLeftFunc(line, unicode.IsSpace)
if len(line) == 0 {
continue
}
// Comments
if line[0] == '#' || line[0] == ';' {
// Note: we do not care ending line break,
// it is needed for adding second line,
// so just clean it once at the end when set to value.
p.comment.Write(line)
continue
}
// Section
if line[0] == '[' {
// Read to the next ']' (TODO: support quoted strings)
closeIdx := bytes.LastIndexByte(line, ']')
if closeIdx == -1 {
return fmt.Errorf("unclosed section: %s", line)
}
name := string(line[1:closeIdx])
section, err = f.NewSection(name)
if err != nil {
return err
}
comment, has := cleanComment(line[closeIdx+1:])
if has {
p.comment.Write(comment)
}
section.Comment = strings.TrimSpace(p.comment.String())
// Reset auto-counter and comments
p.comment.Reset()
p.count = 1
inUnparseableSection = false
for i := range f.options.UnparseableSections {
if f.options.UnparseableSections[i] == name ||
(f.options.Insensitive && strings.ToLower(f.options.UnparseableSections[i]) == strings.ToLower(name)) {
inUnparseableSection = true
continue
}
}
continue
}
if inUnparseableSection {
section.isRawSection = true
section.rawBody += string(line)
continue
}
kname, offset, err := readKeyName(f.options.KeyValueDelimiters, line)
if err != nil {
// Treat as boolean key when desired, and whole line is key name.
if IsErrDelimiterNotFound(err) {
switch {
case f.options.AllowBooleanKeys:
kname, err := p.readValue(line, parserBufferSize)
if err != nil {
return err
}
key, err := section.NewBooleanKey(kname)
if err != nil {
return err
}
key.Comment = strings.TrimSpace(p.comment.String())
p.comment.Reset()
continue
case f.options.SkipUnrecognizableLines:
continue
}
}
return err
}
// Auto increment.
isAutoIncr := false
if kname == "-" {
isAutoIncr = true
kname = "#" + strconv.Itoa(p.count)
p.count++
}
value, err := p.readValue(line[offset:], parserBufferSize)
if err != nil {
return err
}
isLastValueEmpty = len(value) == 0
key, err := section.NewKey(kname, value)
if err != nil {
return err
}
key.isAutoIncrement = isAutoIncr
key.Comment = strings.TrimSpace(p.comment.String())
p.comment.Reset()
lastRegularKey = key
}
return nil
}

256
vendor/gopkg.in/ini.v1/section.go generated vendored Normal file
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// Copyright 2014 Unknwon
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package ini
import (
"errors"
"fmt"
"strings"
)
// Section represents a config section.
type Section struct {
f *File
Comment string
name string
keys map[string]*Key
keyList []string
keysHash map[string]string
isRawSection bool
rawBody string
}
func newSection(f *File, name string) *Section {
return &Section{
f: f,
name: name,
keys: make(map[string]*Key),
keyList: make([]string, 0, 10),
keysHash: make(map[string]string),
}
}
// Name returns name of Section.
func (s *Section) Name() string {
return s.name
}
// Body returns rawBody of Section if the section was marked as unparseable.
// It still follows the other rules of the INI format surrounding leading/trailing whitespace.
func (s *Section) Body() string {
return strings.TrimSpace(s.rawBody)
}
// SetBody updates body content only if section is raw.
func (s *Section) SetBody(body string) {
if !s.isRawSection {
return
}
s.rawBody = body
}
// NewKey creates a new key to given section.
func (s *Section) NewKey(name, val string) (*Key, error) {
if len(name) == 0 {
return nil, errors.New("error creating new key: empty key name")
} else if s.f.options.Insensitive {
name = strings.ToLower(name)
}
if s.f.BlockMode {
s.f.lock.Lock()
defer s.f.lock.Unlock()
}
if inSlice(name, s.keyList) {
if s.f.options.AllowShadows {
if err := s.keys[name].addShadow(val); err != nil {
return nil, err
}
} else {
s.keys[name].value = val
s.keysHash[name] = val
}
return s.keys[name], nil
}
s.keyList = append(s.keyList, name)
s.keys[name] = newKey(s, name, val)
s.keysHash[name] = val
return s.keys[name], nil
}
// NewBooleanKey creates a new boolean type key to given section.
func (s *Section) NewBooleanKey(name string) (*Key, error) {
key, err := s.NewKey(name, "true")
if err != nil {
return nil, err
}
key.isBooleanType = true
return key, nil
}
// GetKey returns key in section by given name.
func (s *Section) GetKey(name string) (*Key, error) {
if s.f.BlockMode {
s.f.lock.RLock()
}
if s.f.options.Insensitive {
name = strings.ToLower(name)
}
key := s.keys[name]
if s.f.BlockMode {
s.f.lock.RUnlock()
}
if key == nil {
// Check if it is a child-section.
sname := s.name
for {
if i := strings.LastIndex(sname, "."); i > -1 {
sname = sname[:i]
sec, err := s.f.GetSection(sname)
if err != nil {
continue
}
return sec.GetKey(name)
}
break
}
return nil, fmt.Errorf("error when getting key of section '%s': key '%s' not exists", s.name, name)
}
return key, nil
}
// HasKey returns true if section contains a key with given name.
func (s *Section) HasKey(name string) bool {
key, _ := s.GetKey(name)
return key != nil
}
// Deprecated: Use "HasKey" instead.
func (s *Section) Haskey(name string) bool {
return s.HasKey(name)
}
// HasValue returns true if section contains given raw value.
func (s *Section) HasValue(value string) bool {
if s.f.BlockMode {
s.f.lock.RLock()
defer s.f.lock.RUnlock()
}
for _, k := range s.keys {
if value == k.value {
return true
}
}
return false
}
// Key assumes named Key exists in section and returns a zero-value when not.
func (s *Section) Key(name string) *Key {
key, err := s.GetKey(name)
if err != nil {
// It's OK here because the only possible error is empty key name,
// but if it's empty, this piece of code won't be executed.
key, _ = s.NewKey(name, "")
return key
}
return key
}
// Keys returns list of keys of section.
func (s *Section) Keys() []*Key {
keys := make([]*Key, len(s.keyList))
for i := range s.keyList {
keys[i] = s.Key(s.keyList[i])
}
return keys
}
// ParentKeys returns list of keys of parent section.
func (s *Section) ParentKeys() []*Key {
var parentKeys []*Key
sname := s.name
for {
if i := strings.LastIndex(sname, "."); i > -1 {
sname = sname[:i]
sec, err := s.f.GetSection(sname)
if err != nil {
continue
}
parentKeys = append(parentKeys, sec.Keys()...)
} else {
break
}
}
return parentKeys
}
// KeyStrings returns list of key names of section.
func (s *Section) KeyStrings() []string {
list := make([]string, len(s.keyList))
copy(list, s.keyList)
return list
}
// KeysHash returns keys hash consisting of names and values.
func (s *Section) KeysHash() map[string]string {
if s.f.BlockMode {
s.f.lock.RLock()
defer s.f.lock.RUnlock()
}
hash := map[string]string{}
for key, value := range s.keysHash {
hash[key] = value
}
return hash
}
// DeleteKey deletes a key from section.
func (s *Section) DeleteKey(name string) {
if s.f.BlockMode {
s.f.lock.Lock()
defer s.f.lock.Unlock()
}
for i, k := range s.keyList {
if k == name {
s.keyList = append(s.keyList[:i], s.keyList[i+1:]...)
delete(s.keys, name)
delete(s.keysHash, name)
return
}
}
}
// ChildSections returns a list of child sections of current section.
// For example, "[parent.child1]" and "[parent.child12]" are child sections
// of section "[parent]".
func (s *Section) ChildSections() []*Section {
prefix := s.name + "."
children := make([]*Section, 0, 3)
for _, name := range s.f.sectionList {
if strings.HasPrefix(name, prefix) {
children = append(children, s.f.sections[name])
}
}
return children
}

615
vendor/gopkg.in/ini.v1/struct.go generated vendored Normal file
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// Copyright 2014 Unknwon
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package ini
import (
"bytes"
"errors"
"fmt"
"reflect"
"strings"
"time"
"unicode"
)
// NameMapper represents a ini tag name mapper.
type NameMapper func(string) string
// Built-in name getters.
var (
// SnackCase converts to format SNACK_CASE.
SnackCase NameMapper = func(raw string) string {
newstr := make([]rune, 0, len(raw))
for i, chr := range raw {
if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
if i > 0 {
newstr = append(newstr, '_')
}
}
newstr = append(newstr, unicode.ToUpper(chr))
}
return string(newstr)
}
// TitleUnderscore converts to format title_underscore.
TitleUnderscore NameMapper = func(raw string) string {
newstr := make([]rune, 0, len(raw))
for i, chr := range raw {
if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
if i > 0 {
newstr = append(newstr, '_')
}
chr -= 'A' - 'a'
}
newstr = append(newstr, chr)
}
return string(newstr)
}
)
func (s *Section) parseFieldName(raw, actual string) string {
if len(actual) > 0 {
return actual
}
if s.f.NameMapper != nil {
return s.f.NameMapper(raw)
}
return raw
}
func parseDelim(actual string) string {
if len(actual) > 0 {
return actual
}
return ","
}
var reflectTime = reflect.TypeOf(time.Now()).Kind()
// setSliceWithProperType sets proper values to slice based on its type.
func setSliceWithProperType(key *Key, field reflect.Value, delim string, allowShadow, isStrict bool) error {
var strs []string
if allowShadow {
strs = key.StringsWithShadows(delim)
} else {
strs = key.Strings(delim)
}
numVals := len(strs)
if numVals == 0 {
return nil
}
var vals interface{}
var err error
sliceOf := field.Type().Elem().Kind()
switch sliceOf {
case reflect.String:
vals = strs
case reflect.Int:
vals, err = key.parseInts(strs, true, false)
case reflect.Int64:
vals, err = key.parseInt64s(strs, true, false)
case reflect.Uint:
vals, err = key.parseUints(strs, true, false)
case reflect.Uint64:
vals, err = key.parseUint64s(strs, true, false)
case reflect.Float64:
vals, err = key.parseFloat64s(strs, true, false)
case reflect.Bool:
vals, err = key.parseBools(strs, true, false)
case reflectTime:
vals, err = key.parseTimesFormat(time.RFC3339, strs, true, false)
default:
return fmt.Errorf("unsupported type '[]%s'", sliceOf)
}
if err != nil && isStrict {
return err
}
slice := reflect.MakeSlice(field.Type(), numVals, numVals)
for i := 0; i < numVals; i++ {
switch sliceOf {
case reflect.String:
slice.Index(i).Set(reflect.ValueOf(vals.([]string)[i]))
case reflect.Int:
slice.Index(i).Set(reflect.ValueOf(vals.([]int)[i]))
case reflect.Int64:
slice.Index(i).Set(reflect.ValueOf(vals.([]int64)[i]))
case reflect.Uint:
slice.Index(i).Set(reflect.ValueOf(vals.([]uint)[i]))
case reflect.Uint64:
slice.Index(i).Set(reflect.ValueOf(vals.([]uint64)[i]))
case reflect.Float64:
slice.Index(i).Set(reflect.ValueOf(vals.([]float64)[i]))
case reflect.Bool:
slice.Index(i).Set(reflect.ValueOf(vals.([]bool)[i]))
case reflectTime:
slice.Index(i).Set(reflect.ValueOf(vals.([]time.Time)[i]))
}
}
field.Set(slice)
return nil
}
func wrapStrictError(err error, isStrict bool) error {
if isStrict {
return err
}
return nil
}
// setWithProperType sets proper value to field based on its type,
// but it does not return error for failing parsing,
// because we want to use default value that is already assigned to struct.
func setWithProperType(t reflect.Type, key *Key, field reflect.Value, delim string, allowShadow, isStrict bool) error {
vt := t
isPtr := t.Kind() == reflect.Ptr
if isPtr {
vt = t.Elem()
}
switch vt.Kind() {
case reflect.String:
stringVal := key.String()
if isPtr {
field.Set(reflect.ValueOf(&stringVal))
} else if len(stringVal) > 0 {
field.SetString(key.String())
}
case reflect.Bool:
boolVal, err := key.Bool()
if err != nil {
return wrapStrictError(err, isStrict)
}
if isPtr {
field.Set(reflect.ValueOf(&boolVal))
} else {
field.SetBool(boolVal)
}
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
// ParseDuration will not return err for `0`, so check the type name
if vt.Name() == "Duration" {
durationVal, err := key.Duration()
if err != nil {
if intVal, err := key.Int64(); err == nil {
field.SetInt(intVal)
return nil
}
return wrapStrictError(err, isStrict)
}
if isPtr {
field.Set(reflect.ValueOf(&durationVal))
} else if int64(durationVal) > 0 {
field.Set(reflect.ValueOf(durationVal))
}
return nil
}
intVal, err := key.Int64()
if err != nil {
return wrapStrictError(err, isStrict)
}
if isPtr {
pv := reflect.New(t.Elem())
pv.Elem().SetInt(intVal)
field.Set(pv)
} else {
field.SetInt(intVal)
}
// byte is an alias for uint8, so supporting uint8 breaks support for byte
case reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uint64:
durationVal, err := key.Duration()
// Skip zero value
if err == nil && uint64(durationVal) > 0 {
if isPtr {
field.Set(reflect.ValueOf(&durationVal))
} else {
field.Set(reflect.ValueOf(durationVal))
}
return nil
}
uintVal, err := key.Uint64()
if err != nil {
return wrapStrictError(err, isStrict)
}
if isPtr {
pv := reflect.New(t.Elem())
pv.Elem().SetUint(uintVal)
field.Set(pv)
} else {
field.SetUint(uintVal)
}
case reflect.Float32, reflect.Float64:
floatVal, err := key.Float64()
if err != nil {
return wrapStrictError(err, isStrict)
}
if isPtr {
pv := reflect.New(t.Elem())
pv.Elem().SetFloat(floatVal)
field.Set(pv)
} else {
field.SetFloat(floatVal)
}
case reflectTime:
timeVal, err := key.Time()
if err != nil {
return wrapStrictError(err, isStrict)
}
if isPtr {
field.Set(reflect.ValueOf(&timeVal))
} else {
field.Set(reflect.ValueOf(timeVal))
}
case reflect.Slice:
return setSliceWithProperType(key, field, delim, allowShadow, isStrict)
default:
return fmt.Errorf("unsupported type '%s'", t)
}
return nil
}
func parseTagOptions(tag string) (rawName string, omitEmpty bool, allowShadow bool) {
opts := strings.SplitN(tag, ",", 3)
rawName = opts[0]
if len(opts) > 1 {
omitEmpty = opts[1] == "omitempty"
}
if len(opts) > 2 {
allowShadow = opts[2] == "allowshadow"
}
return rawName, omitEmpty, allowShadow
}
func (s *Section) mapTo(val reflect.Value, isStrict bool) error {
if val.Kind() == reflect.Ptr {
val = val.Elem()
}
typ := val.Type()
for i := 0; i < typ.NumField(); i++ {
field := val.Field(i)
tpField := typ.Field(i)
tag := tpField.Tag.Get("ini")
if tag == "-" {
continue
}
rawName, _, allowShadow := parseTagOptions(tag)
fieldName := s.parseFieldName(tpField.Name, rawName)
if len(fieldName) == 0 || !field.CanSet() {
continue
}
isStruct := tpField.Type.Kind() == reflect.Struct
isStructPtr := tpField.Type.Kind() == reflect.Ptr && tpField.Type.Elem().Kind() == reflect.Struct
isAnonymous := tpField.Type.Kind() == reflect.Ptr && tpField.Anonymous
if isAnonymous {
field.Set(reflect.New(tpField.Type.Elem()))
}
if isAnonymous || isStruct || isStructPtr {
if sec, err := s.f.GetSection(fieldName); err == nil {
// Only set the field to non-nil struct value if we have a section for it.
// Otherwise, we end up with a non-nil struct ptr even though there is no data.
if isStructPtr && field.IsNil() {
field.Set(reflect.New(tpField.Type.Elem()))
}
if err = sec.mapTo(field, isStrict); err != nil {
return fmt.Errorf("error mapping field %q: %v", fieldName, err)
}
continue
}
}
if key, err := s.GetKey(fieldName); err == nil {
delim := parseDelim(tpField.Tag.Get("delim"))
if err = setWithProperType(tpField.Type, key, field, delim, allowShadow, isStrict); err != nil {
return fmt.Errorf("error mapping field %q: %v", fieldName, err)
}
}
}
return nil
}
// MapTo maps section to given struct.
func (s *Section) MapTo(v interface{}) error {
typ := reflect.TypeOf(v)
val := reflect.ValueOf(v)
if typ.Kind() == reflect.Ptr {
typ = typ.Elem()
val = val.Elem()
} else {
return errors.New("cannot map to non-pointer struct")
}
return s.mapTo(val, false)
}
// StrictMapTo maps section to given struct in strict mode,
// which returns all possible error including value parsing error.
func (s *Section) StrictMapTo(v interface{}) error {
typ := reflect.TypeOf(v)
val := reflect.ValueOf(v)
if typ.Kind() == reflect.Ptr {
typ = typ.Elem()
val = val.Elem()
} else {
return errors.New("cannot map to non-pointer struct")
}
return s.mapTo(val, true)
}
// MapTo maps file to given struct.
func (f *File) MapTo(v interface{}) error {
return f.Section("").MapTo(v)
}
// StrictMapTo maps file to given struct in strict mode,
// which returns all possible error including value parsing error.
func (f *File) StrictMapTo(v interface{}) error {
return f.Section("").StrictMapTo(v)
}
// MapToWithMapper maps data sources to given struct with name mapper.
func MapToWithMapper(v interface{}, mapper NameMapper, source interface{}, others ...interface{}) error {
cfg, err := Load(source, others...)
if err != nil {
return err
}
cfg.NameMapper = mapper
return cfg.MapTo(v)
}
// StrictMapToWithMapper maps data sources to given struct with name mapper in strict mode,
// which returns all possible error including value parsing error.
func StrictMapToWithMapper(v interface{}, mapper NameMapper, source interface{}, others ...interface{}) error {
cfg, err := Load(source, others...)
if err != nil {
return err
}
cfg.NameMapper = mapper
return cfg.StrictMapTo(v)
}
// MapTo maps data sources to given struct.
func MapTo(v, source interface{}, others ...interface{}) error {
return MapToWithMapper(v, nil, source, others...)
}
// StrictMapTo maps data sources to given struct in strict mode,
// which returns all possible error including value parsing error.
func StrictMapTo(v, source interface{}, others ...interface{}) error {
return StrictMapToWithMapper(v, nil, source, others...)
}
// reflectSliceWithProperType does the opposite thing as setSliceWithProperType.
func reflectSliceWithProperType(key *Key, field reflect.Value, delim string, allowShadow bool) error {
slice := field.Slice(0, field.Len())
if field.Len() == 0 {
return nil
}
sliceOf := field.Type().Elem().Kind()
if allowShadow {
var keyWithShadows *Key
for i := 0; i < field.Len(); i++ {
var val string
switch sliceOf {
case reflect.String:
val = slice.Index(i).String()
case reflect.Int, reflect.Int64:
val = fmt.Sprint(slice.Index(i).Int())
case reflect.Uint, reflect.Uint64:
val = fmt.Sprint(slice.Index(i).Uint())
case reflect.Float64:
val = fmt.Sprint(slice.Index(i).Float())
case reflect.Bool:
val = fmt.Sprint(slice.Index(i).Bool())
case reflectTime:
val = slice.Index(i).Interface().(time.Time).Format(time.RFC3339)
default:
return fmt.Errorf("unsupported type '[]%s'", sliceOf)
}
if i == 0 {
keyWithShadows = newKey(key.s, key.name, val)
} else {
keyWithShadows.AddShadow(val)
}
}
key = keyWithShadows
return nil
}
var buf bytes.Buffer
for i := 0; i < field.Len(); i++ {
switch sliceOf {
case reflect.String:
buf.WriteString(slice.Index(i).String())
case reflect.Int, reflect.Int64:
buf.WriteString(fmt.Sprint(slice.Index(i).Int()))
case reflect.Uint, reflect.Uint64:
buf.WriteString(fmt.Sprint(slice.Index(i).Uint()))
case reflect.Float64:
buf.WriteString(fmt.Sprint(slice.Index(i).Float()))
case reflect.Bool:
buf.WriteString(fmt.Sprint(slice.Index(i).Bool()))
case reflectTime:
buf.WriteString(slice.Index(i).Interface().(time.Time).Format(time.RFC3339))
default:
return fmt.Errorf("unsupported type '[]%s'", sliceOf)
}
buf.WriteString(delim)
}
key.SetValue(buf.String()[:buf.Len()-len(delim)])
return nil
}
// reflectWithProperType does the opposite thing as setWithProperType.
func reflectWithProperType(t reflect.Type, key *Key, field reflect.Value, delim string, allowShadow bool) error {
switch t.Kind() {
case reflect.String:
key.SetValue(field.String())
case reflect.Bool:
key.SetValue(fmt.Sprint(field.Bool()))
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
key.SetValue(fmt.Sprint(field.Int()))
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
key.SetValue(fmt.Sprint(field.Uint()))
case reflect.Float32, reflect.Float64:
key.SetValue(fmt.Sprint(field.Float()))
case reflectTime:
key.SetValue(fmt.Sprint(field.Interface().(time.Time).Format(time.RFC3339)))
case reflect.Slice:
return reflectSliceWithProperType(key, field, delim, allowShadow)
case reflect.Ptr:
if !field.IsNil() {
return reflectWithProperType(t.Elem(), key, field.Elem(), delim, allowShadow)
}
default:
return fmt.Errorf("unsupported type '%s'", t)
}
return nil
}
// CR: copied from encoding/json/encode.go with modifications of time.Time support.
// TODO: add more test coverage.
func isEmptyValue(v reflect.Value) bool {
switch v.Kind() {
case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
return v.Len() == 0
case reflect.Bool:
return !v.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return v.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return v.Uint() == 0
case reflect.Float32, reflect.Float64:
return v.Float() == 0
case reflect.Interface, reflect.Ptr:
return v.IsNil()
case reflectTime:
t, ok := v.Interface().(time.Time)
return ok && t.IsZero()
}
return false
}
// StructReflector is the interface implemented by struct types that can extract themselves into INI objects.
type StructReflector interface {
ReflectINIStruct(*File) error
}
func (s *Section) reflectFrom(val reflect.Value) error {
if val.Kind() == reflect.Ptr {
val = val.Elem()
}
typ := val.Type()
for i := 0; i < typ.NumField(); i++ {
field := val.Field(i)
tpField := typ.Field(i)
tag := tpField.Tag.Get("ini")
if tag == "-" {
continue
}
rawName, omitEmpty, allowShadow := parseTagOptions(tag)
if omitEmpty && isEmptyValue(field) {
continue
}
if r, ok := field.Interface().(StructReflector); ok {
return r.ReflectINIStruct(s.f)
}
fieldName := s.parseFieldName(tpField.Name, rawName)
if len(fieldName) == 0 || !field.CanSet() {
continue
}
if (tpField.Type.Kind() == reflect.Ptr && tpField.Anonymous) ||
(tpField.Type.Kind() == reflect.Struct && tpField.Type.Name() != "Time") {
// Note: The only error here is section doesn't exist.
sec, err := s.f.GetSection(fieldName)
if err != nil {
// Note: fieldName can never be empty here, ignore error.
sec, _ = s.f.NewSection(fieldName)
}
// Add comment from comment tag
if len(sec.Comment) == 0 {
sec.Comment = tpField.Tag.Get("comment")
}
if err = sec.reflectFrom(field); err != nil {
return fmt.Errorf("error reflecting field %q: %v", fieldName, err)
}
continue
}
key, err := s.GetKey(fieldName)
if err != nil {
key, _ = s.NewKey(fieldName, "")
}
// Add comment from comment tag
if len(key.Comment) == 0 {
key.Comment = tpField.Tag.Get("comment")
}
delim := parseDelim(tpField.Tag.Get("delim"))
if err = reflectWithProperType(tpField.Type, key, field, delim, allowShadow); err != nil {
return fmt.Errorf("error reflecting field %q: %v", fieldName, err)
}
}
return nil
}
// ReflectFrom reflects secion from given struct.
func (s *Section) ReflectFrom(v interface{}) error {
typ := reflect.TypeOf(v)
val := reflect.ValueOf(v)
if typ.Kind() == reflect.Ptr {
typ = typ.Elem()
val = val.Elem()
} else {
return errors.New("cannot reflect from non-pointer struct")
}
return s.reflectFrom(val)
}
// ReflectFrom reflects file from given struct.
func (f *File) ReflectFrom(v interface{}) error {
return f.Section("").ReflectFrom(v)
}
// ReflectFromWithMapper reflects data sources from given struct with name mapper.
func ReflectFromWithMapper(cfg *File, v interface{}, mapper NameMapper) error {
cfg.NameMapper = mapper
return cfg.ReflectFrom(v)
}
// ReflectFrom reflects data sources from given struct.
func ReflectFrom(cfg *File, v interface{}) error {
return ReflectFromWithMapper(cfg, v, nil)
}

18
vendor/modules.txt vendored Normal file
View File

@ -0,0 +1,18 @@
# github.com/go-sql-driver/mysql v1.5.0
## explicit
github.com/go-sql-driver/mysql
# github.com/jmoiron/sqlx v1.2.0
## explicit
github.com/jmoiron/sqlx
github.com/jmoiron/sqlx/reflectx
# github.com/lib/pq v1.1.1
## explicit
# github.com/mattn/go-sqlite3 v2.0.1+incompatible
## explicit
# github.com/smartystreets/goconvey v1.6.4
## explicit
# golang.org/x/text v0.3.0
## explicit
# gopkg.in/ini.v1 v1.54.0
## explicit
gopkg.in/ini.v1