PHP Websocket 失败：WebSocket 握手期间出错：net::ERR_CONNECTION_CLOSED（匿名）

Question

我在PHP学习了websocket，但我不知道为什么会出现这个握手错误。

我的client.html：

<html>
<body>
    <div id="root"></div>
    <script>
        var host = 'ws://127.0.0.1:8020/';
        var socket = new WebSocket(host);
        socket.onmessage = function(e) {
            console.log(e.data)
        };
    </script>
</body>
</html>

和server.php：

<?php

$address = "127.0.0.1";
$port = 8020;

$socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);
socket_bind($socket,$address,$port) or die('bind error');
socket_listen($socket) or die('listen error');
$client = socket_accept($socket) or die('accept error');

$socketread = socket_read($client,5000) or die('Failed to read');

preg_match("#Sec-WebSocket-Key: (.*)\r\n#",$socketread,$match);
$key = base64_encode(sha1($match[1].'258EAFA5-E914-47DA-95CA-C5AB0DC85B11',true));

$header = "HTTP/1.1 101 Switching Protocols\r\n";
$header .= "Upgrade: websocket\r\n";
$header .= "Connection: Upgrade\r\n";
$header .= "Sec-WebSocket-Accept: $key\r\n";
$header .= "Sec-WebSocket-Version: 13\r\n";

var_dump($header);
socket_write($client,$header,strlen($header));


$msg = "connected";
socket_write($client,$msg,strlen($msg));
socket_close($socket);

但是，我遵循了关于握手的 Mozilla 文档：/

谢谢你。

Answer 1

However, I followed the Mozilla documentation on the handshake :/

虽然这可能是您根据您的代码假设只需要开始时的握手并且您可以直接使用普通套接字。但是 WebSockets 实际上有自己的消息结构和负载屏蔽，您也需要实现这些。详情请参阅 the actual standard。

Answer 2

您的请求是否仍然相关？

我发送：

$key = base64_encode(sha1($match[1].'258EAFA5-E914-47DA-95CA-C5AB0DC85B11',true));
$header = "HTTP/1.1 101 Switching Protocols\n\r"
                        ."Upgrade: websocket\n\r"
                        ."Connection: Upgrade\n\r"
                        ."Sec-WebSocket-Accept: ".base64_encode(sha1($cartouche['Sec-WebSocket-Key'].'258EAFA5-E914-47DA-95CA-C5AB0DC85B11', true))."\n\n\r";

我最后得到 2 \n\n\r。

这部分不行:

$msg = "connected";
socket_write($client,$msg,strlen($msg));
socket_close($socket);

你必须尊重框架

 0               1               2               3
 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
+-+-+-+-+-------+-+-------------+-------------------------------+
|F|R|R|R| opcode|M| Payload len |    Extended payload length    |
|I|S|S|S|  (4)  |A|     (7)     |             (16/64)           |
|N|V|V|V|       |S|             |   (if payload len==126/127)   |
| |1|2|3|       |K|             |                               |
+-+-+-+-+-------+-+-------------+ - - - - - - - - - - - - - - - +
 4               5               6               7
+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +
|     Extended payload length continued, if payload len == 127  |
+ - - - - - - - - - - - - - - - +-------------------------------+
 8               9               10              11
+ - - - - - - - - - - - - - - - +-------------------------------+
|                               |Masking-key, if MASK set to 1  |
+-------------------------------+-------------------------------+
 12              13              14              15
+-------------------------------+-------------------------------+
| Masking-key (continued)       |          Payload Data         |
+-------------------------------- - - - - - - - - - - - - - - - +
:                     Payload Data continued ...                :
+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +
|                     Payload Data continued ...                |
+---------------------------------------------------------------+

PHP Websocket 失败：WebSocket 握手期间出错：net::ERR_CONNECTION_CLOSED（匿名）

PHP Websocket failed: Error during WebSocket handshake: net::ERR_CONNECTION_CLOSED (anonymous)

php

sockets

php-socket

websocket