无法识别的框架操作码:7 [英] Unrecognized frame opcode: 7
问题描述
我用带有websockets的javascript创建了一个客户端,该客户端连接到c Sharp服务器.问题是握手后,我的连接关闭了,我不知道为什么.我得到的唯一错误是:无法识别的帧操作码:7".我使用的是Google Chrome浏览器16.0.912.75.
循序渐进:
-WebSocket可用
-服务器收到握手请求
-生成了Sec-WebSocket-Accept并将其发送到浏览器
-浏览器识别该键并执行 .onopen 方法
-在此之后我得到了错误
在我的服务器上,我有这个:
I created a client in javascript with websockets that connects to a c sharp server. The problem is that after the handshake my connection closes and I don''t know why. The only error I get is: "Unrecognized frame opcode: 7". I use Google Chrome 16.0.912.75.
Step by step:
- WebSocket available
- server receives the handshake request
- Sec-WebSocket-Accept is generated and sent to the browser
- the browser recognizes the key and the .onopen method is executed
- after this I get the error
In my server I have this:
connection.Send(Encoding.ASCII.GetBytes("HTTP/1.1 101 Switching Protocols\r\nUpgrade: WebSocket\r\nConnection: Upgrade\r\nSec-WebSocket-Accept: " + aux));
connection.Send(Encoding.ASCII.GetBytes("\r\n\r\n"));
... aux是通过此函数生成的:
... where aux is generated by this function:
public static String ComputeWebSocketHandshakeSecurityHash09(String secWebSocketKey)
{
const String MagicKEY = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
String secWebSocketAccept = String.Empty;
// 1. Combine the request Sec-WebSocket-Key with magic key.
String ret = secWebSocketKey + MagicKEY;
Console.WriteLine("- " + ret + " -");
// 2. Compute the SHA1 hash
SHA1 sha = new SHA1CryptoServiceProvider();
byte[] sha1Hash = sha.ComputeHash(Encoding.UTF8.GetBytes(ret));
// 3. Base64 encode the hash
secWebSocketAccept = Convert.ToBase64String(sha1Hash);
return secWebSocketAccept;
}
客户端看起来像这样:
The client side looks like this:
var ws;
$(document).ready(function () {
// test if the browser supports web sockets
if ("WebSocket" in window) {
debug("Browser supports web sockets!", 'success');
connect($('#host').val());
$('#console_send').removeAttr('disabled');
} else {
debug("Browser does not support web sockets", 'error');
};
// function to send data on the web socket
function ws_send(str) {
try {
ws.send(str);
} catch (err) {
debug(err, 'error');
}
}
// connect to the specified host
function connect(host) {
debug("Connecting to " + host + " ...");
try {
ws = new WebSocket(host); // create the web socket
} catch (err) {
debug(err, 'error');
}
$('#host_connect').attr('disabled', true); // disable the 'reconnect' button
ws.onopen = function () {
debug("connected... ", 'success'); // we are in! :D
};
ws.onmessage = function (evt) {
debug(evt.data, 'response'); // we got some data - show it omg!!
};
ws.onclose = function () {
debug("Socket closed!", 'error'); // the socket was closed (this could be an error or simply that there is no server)
$('#host_connect').attr('disabled', false); // re-enable the 'reconnect button
};
};
// function to display stuff, the second parameter is the class of the <p> (used for styling)
function debug(msg, type) {
$("#console").append('<p class="' + (type || '') + '">' + msg + '</p>');
};
// the user clicked to 'reconnect' button
$('#host_connect').click(function () {
debug("\n");
connect($('#host').val());
});
// the user clicked the send button
$('#console_send').click(function () {
ws_send($('#console_input').val());
});
$('#console_input').keyup(function (e) {
if(e.keyCode == 13) // enter is pressed
ws_send($('#console_input').val());
});
});
如果您需要更多信息,请回复.我现在在此操作码上搜索google,搜索4h之类的东西:7问题.
谢谢您的帮助.
If you need more information please reply. I am searching google for like 4h now on this opcode: 7 issue.
Thank you for your help.
推荐答案
(文档).ready(// 测试浏览器是否支持Web套接字 如果(" 在中窗口){ debug(" ,' 成功'); connect(
(document).ready(function () { // test if the browser supports web sockets if ("WebSocket" in window) { debug("Browser supports web sockets!", 'success'); connect(
(' #host').val( ));
('#host').val());
(' #console_send').removeAttr (' 已禁用'); } 其他 { debug(" ,' 错误'); }; // 用于在网络套接字上发送数据的功能 功能 ws_send(str){ 尝试 { ws.send(str); } 捕获(错误){ debug(err,' 错误'); } } // 连接到指定的主机 功能 connect(host){ debug(" +主机+ " span> ..."); 尝试 { ws = 新 WebSocket(主机); // 创建Web套接字 } 捕获(错误){ debug(err,' 错误'); }
('#console_send').removeAttr('disabled'); } else { debug("Browser does not support web sockets", 'error'); }; // function to send data on the web socket function ws_send(str) { try { ws.send(str); } catch (err) { debug(err, 'error'); } } // connect to the specified host function connect(host) { debug("Connecting to " + host + " ..."); try { ws = new WebSocket(host); // create the web socket } catch (err) { debug(err, 'error'); }
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