generics, vweb, comptime codegen, etc

vlib/vweb/vweb.v

@@ -0,0 +1,121 @@
+module vweb
+
+import (
+	os
+	strings 
+	net 
+	http 
+) 
+
+struct Context {
+pub: 
+	req http.Request 
+	conn net.Socket 
+	post_form map[string]string 
+	// TODO Response 
+	headers []string 
+} 
+
+pub fn (ctx Context) write(s string) {
+	//ctx.conn.write(s) 
+} 
+
+pub fn (ctx Context) redirect(url string) {
+        h := ctx.headers.join('\n')
+        ctx.conn.write('
+HTTP/1.1 302 Found
+Location: $url
+$h
+') 
+} 
+
+pub fn (ctx mut Context) set_cookie(key, val string) {
+	ctx.set_header('Set-Cookie', '$key=$val') 
+} 
+
+pub fn (ctx Context) get_cookie(key string) string { 
+	cookie := ctx.req.headers['Cookie']
+	return cookie.find_between('$key=', ';')
+} 
+
+fn (ctx mut Context) set_header(key, val string) {
+	// ctx.resp.headers[key] = val
+	ctx.headers << '$key: $val'
+}
+
+pub fn (ctx Context) html(html string) { 
+	//tmpl := os.read_file(path)  or {return} 
+	ctx.conn.write('HTTP/1.1 200 OK 
+Content-Type: text/html 
+
+$html 
+')
+	 
+} 
+
+pub fn run<T>(port int) { 
+	l := net.listen(port) or { panic('failed to listen') return } 
+	for {
+		conn := l.accept() or {
+			panic('accept() failed') 
+			return 
+		} 
+		// TODO move this to handle_conn<T>(conn, app)
+		s := conn.read_line() 
+		// Parse the first line
+		// "GET / HTTP/1.1"
+		first_line := s.all_before('\n')
+		vals := first_line.split(' ') 
+		mut action := vals[1].right(1).all_before('/') 
+		if action == '' {
+			action = 'index' 
+		} 
+		req := http.Request{
+		        headers: map[string]string{} 
+		        ws_func: 0
+		        user_ptr: 0
+		        method: vals[0]
+		        url: vals[1] 
+		} 
+		mut app := T{
+			vweb: Context{
+				req: req 
+				conn: conn 
+				post_form: map[string]string{} 
+			} 
+		} 
+		app.init() 
+		if req.method == 'POST' {
+			app.vweb.parse_form(s) 
+		} 
+		println('vweb action = "$action"') 
+		if vals.len < 2 {
+			println('no vals for http') 
+			return 
+		} 
+		app.$action() 
+		conn.close()
+	}
+} 
+
+
+fn (ctx mut Context) parse_form(s string) { 
+	if ctx.req.method != 'POST' {
+		return 
+	} 
+	pos := s.index('\r\n\r\n')
+	if pos > -1 {
+		mut str_form := s.substr(pos, s.len)
+		str_form = str_form.replace('+', ' ')
+		words := str_form.split('&')
+		for word in words {
+			keyval := word.split('=')
+			key := keyval[0]
+			val := keyval[1]
+			//println('http form $key => $val') 
+			ctx.post_form[key] = http.unescape(val) 
+		}
+	}
+} 
+
+