first commit

2024-06-02 17:02:36 +02:00 · 2024-06-02 17:02:36 +02:00 · f73f29840e
commit f73f29840e
3 changed files with 77 additions and 0 deletions
--- a/hlib.lua
+++ b/hlib.lua
@ -0,0 +1,37 @@
+local hlib = {}
+
+function hlib.parse_request(r)
+  local request = {method=nil, path=nil, version=nil, headers={}}
+  local lines = string.gmatch(r, "[^\n]+")
+  local head_msg = lines()
+  local _, _, method, path, version = string.find(head_msg, "(%u+) ([%w/]+) ([%w/%.]+)")
+  request.method = method
+  request.path = path
+  request.version = version
+
+  for line in lines do
+    local _, _, a, b = string.find(line, "([%w-]+): (.+)")
+    if a then
+      request.headers[a] = b
+    end
+  end
+  return request
+end
+
+function hlib.response(path, status, body)
+  local resp = {
+    version=fmt("HTTP/%s",g_version),
+    status=status,
+    status_msg=g_status_msg[status],
+    body=body,
+    headers={}
+  }
+  local r = fmt(
+[[%s %s %s
+
+%s
+]], resp.version, resp.status, resp.status_msg, resp.body)
+  return r
+end
+
+return hlib
--- a/http.data
+++ b/http.data
@ -0,0 +1,10 @@
+HTTP/1.1 200 OK
+Server: webserver-lua-c
+Content-type: text/html
+
+<html>
+<title>http test</title>
+<body>
+<p>hello, <span style="color:red;">world</span></p>
+</body>
+</html>
--- a/http.lua
+++ b/http.lua
@ -0,0 +1,30 @@
+#!/usr/bin/env lua5.4
+
+local unix = require('unix')
+local hlib = require('hlib')
+local fmt = string.format
+
+local g_version = "1.1"
+local g_status_msg = {[200]="OK"}
+
+local sock = unix.socket(unix.AF_INET, unix.SOCK_STREAM, 0)
+unix.setsockopt(sock, unix.SOL_SOCKET, unix.SO_REUSEADDR, 1)
+
+local listenaddr = unix.getaddrinfo("0.0.0.0","8080")()
+local b = unix.bind(sock, listenaddr)
+if not b then print("error binding socket") return end
+
+unix.listen(sock, 1024)
+
+while true do
+  unix.sleep(0.05)
+  local csock = unix.accept(sock, 0)
+  local msg = unix.recv(csock, 1024)
+  if msg then
+    local req = hlib.parse_request(msg)
+    local data = hlib.response(req.path, 200, "test")
+    unix.send(csock, data)
+  end
+  unix.shutdown(csock, 0)
+  unix.close(csock)
+end