Websocket握手不起作用

Question

i have a cpp server using WinSock2 and im trying to connect to this server with my javascript client, and it doesnt work, the chrome console says "Error during WebSocket handshake: Incorrect 'Sec-WebSocket-Accept' header value". 我有一个使用WinSock2的cpp服务器，我试图用我的javascript客户端连接到该服务器，并且它无法正常工作，chrome控制台显示“ WebSocket握手时出错：错误的'Sec-WebSocket-Accept'标头值”。 i compared my sha1 and base64 functions with online sha1 and base64 so the problem isnt here. 我将我的sha1和base64函数与在线sha1和base64进行了比较，因此问题不在这里。

Chrome Response Header: Chrome Response标头：

HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-Websocket-Accept: NzdkYjg1Y2I4MDRlNTk0OGNmNzI1NzdjZDgwOTEwZWZiYWI1NzQ3Yw==

Chrome Request Header: Chrome请求标头：

GET ws://localhost:8820/ HTTP/1.1
Host: localhost:8820
Connection: Upgrade
Pragma: no-cache
Cache-Control: no-cache
Upgrade: websocket
Origin: file://
Sec-WebSocket-Version: 13
User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36
Accept-Encoding: gzip, deflate, sdch, br
Accept-Language: he-IL,he;q=0.8,en-US;q=0.6,en;q=0.4
Sec-WebSocket-Key: Y7a2ZKEz/VCM92Wya49iPA==
Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits

Server Code: 服务器代码：

//key is already defined.
key += "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
key = sha1(key);
key = base64_encode(reinterpret_cast<const unsigned char*>(key.c_str()), key.length());

toClient = "HTTP/1.1 101 Switching Protocols\r\n";
toClient += "Upgrade: websocket\r\n";
toClient += "connection: Upgrade\r\n";
toClient += "Sec-Websocket-Accept: ";
toClient += key; 
toClient += "\r\n\r\n";

sendData(sc, toClient);

Client Code: 客户代码：

<!DOCTYPE HTML>

  <script type="text/javascript">
     function WebSocketTest()
     {
        if ("WebSocket" in window)
        {
           //alert("WebSocket is supported by your Browser!");

           // Let us open a web socket
           var ws = new WebSocket("ws://localhost:8820");
           console.log("test");
           ws.onopen = function()
           {
                alert("Connection.")
                // Web Socket is connected, send data using send()
                ws.send("20304user04user04user");
                //alert("Message is sent...");
           };

           ws.onmessage = function (evt) 
           { 
              var received_msg = evt.data;
              alert("Hey");
           };

           ws.onclose = function()
           { 
              // websocket is closed.
              alert("Connection is closed..."); 
           };
        }

        else
        {
           // The browser doesn't support WebSocket
           alert("WebSocket NOT supported by your Browser!");
        }
     }
  </script>

  <div id="sse">
     <a href="javascript:WebSocketTest()">Run WebSocket</a>
  </div>

Answer 1

I tried manually to build the response: 我尝试手动构建响应：

Raw sha1 digest bytes of the concatenation are 77db85cb804e5948cf72577cd80910efbab5747c 串联的原始sha1摘要字节为77db85cb804e5948cf72577cd80910efbab5747c
Bytes to base 64: d9uFy4BOWUjPcld82AkQ77q1dHw= 以64为基数的字节： d9uFy4BOWUjPcld82AkQ77q1dHw=

This is different than what you have. 这与您所拥有的不同。 You are transforming the hexadecimal string representation of those bytes to base 64 instead of raw bytes to base 64. 您正在将这些字节的十六进制字符串表示形式转换为基数64，而不是将原始字节转换为基数64。

Websocket握手不起作用

问题描述

1 个解决方案

解决方案1
2 已采纳 2017-05-30 13:44:56

Websocket握手不起作用

问题描述

1 个解决方案

解决方案1 2 已采纳 2017-05-30 13:44:56

解决方案1
2 已采纳 2017-05-30 13:44:56