net: remove old websocket module

vlib/net/websocket/handshake.v

@@ -1,79 +0,0 @@
-module websocket
-
-fn (mut ws Client) read_handshake(seckey string) {
-	ws.log.debug('reading handshake...')
-	mut bytes_read := 0
-	max_buffer := 1024
-	buffer_size := 1
-	mut buffer := malloc(max_buffer)
-	for bytes_read < max_buffer - 1 {
-		mut res := 0
-		unsafe {
-			res = ws.read_from_server(buffer + bytes_read, buffer_size)
-		}
-		if res == 0 || res == -1 {
-			ws.log.fatal('read_handshake: Failed to read handshake.')
-		}
-		if unsafe {buffer[bytes_read] == `\n` &&
-			buffer[bytes_read - 1] == `\r` && buffer[bytes_read - 2] == `\n` &&
-			buffer[bytes_read - 3] == `\r`} {
-			break
-		}
-		bytes_read += buffer_size
-	}
-	unsafe {
-		buffer[max_buffer - 1] = `\0`
-	}
-	ws.handshake_handler(unsafe{ byteptr(buffer).vstring_with_len(max_buffer-1) }, seckey)
-}
-
-fn (mut ws Client) handshake_handler(handshake_response, seckey string) {
-	ws.log.debug('handshake_handler:\r\n$handshake_response')
-	lines := handshake_response.split_into_lines()
-	header := lines[0]
-	if !header.starts_with('HTTP/1.1 101') && !header.starts_with('HTTP/1.0 101') {
-		ws.log.fatal('handshake_handler: invalid HTTP status response code')
-	}
-	for i in 1 .. lines.len {
-		if lines[i].len <= 0 || lines[i] == '\r\n' {
-			continue
-		}
-		keys := lines[i].split(':')
-		match keys[0] {
-			'Upgrade', 'upgrade' {
-				ws.flags << .has_upgrade
-			}
-			'Connection', 'connection' {
-				ws.flags << .has_connection
-			}
-			'Sec-WebSocket-Accept', 'sec-websocket-accept' {
-				ws.log.debug('comparing hashes')
-				ws.log.debug('seckey: $seckey')
-				challenge := create_key_challenge_response(seckey)
-				ws.log.debug('challenge: $challenge')
-				ws.log.debug('response: ${keys[1]}')
-				if keys[1].trim_space() != challenge {
-					ws.log.error('handshake_handler: Sec-WebSocket-Accept header does not match computed sha1/base64 response.')
-				}
-				ws.flags << .has_accept
-				unsafe {
-					challenge.free()
-				}
-			}
-			else {}
-		}
-		unsafe {
-			keys.free()
-		}
-	}
-	if ws.flags.len < 3 {
-		ws.close(1002, 'invalid websocket HTTP headers')
-		ws.log.error('invalid websocket HTTP headers')
-	}
-	ws.log.info('handshake successful!')
-	unsafe {
-		handshake_response.free()
-		lines.free()
-		header.free()
-	}
-}