2015-04-12 145 views
2

我用PHP编写websocket服务器/客户端,它在2年内为我工作。现在,它不工作,他说:Error during WebSocket handshake: Incorrect 'Sec-WebSocket-Accept' header valueWebSocket握手期间出现错误:PHP中错误的'Sec-WebSocket-Accept'标头值

我的客户方代码基本上是这样的:

socket = new WebSocket("ws://<?= EVENT_SERVER_ADDR ?>:"+EVENT_SERVER_PORT+"<?= EVENT_SERVER_WWW_PATH ?>"); 

PHP服务器端的代码是这样的:

list ($resource, $host, $connection, $version, $origin, $key, $protocol, $upgrade) = $this->getheaders ($buffer); 

$this->log ("Handshaking..."); 
$reply = 
    "HTTP/1.1 101 Switching Protocols\r\n" . 
    "Upgrade: {$upgrade}\r\n" . 
    "Connection: {$connection}\r\n" . 
    "Sec-WebSocket-Version: {$version}\r\n" . 
    "Sec-WebSocket-Origin: {$origin}\r\n" . 
    "Sec-WebSocket-Location: ws://{$host}{$resource}\r\n" . 
    "Sec-WebSocket-Accept: " . $this->calcKey ($key) . "\r\n"; 
if ($protocol) 
    $reply .= "Sec-WebSocket-Protocol: $protocol\r\n"; 
$reply .= "\r\n"; 

// Closes the handshake 
socket_write ($user->socket, $reply, strlen ($reply)); 

function calcKey ($key) { 
    // Constant string as specified in the ietf-hybi-17 draft 
    $key .= "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"; 
    $key = sha1 ($key, true); 
    // $key = pack ('H*', $key); // should I uncomment this line? 
    $key = base64_encode ($key); 

    return $key; 
} 

function getheaders ($buffer) { 
    $resource = $host = $connection = $version = $origin = $key = $protocol = $upgrade = null; 

    preg_match ('#GET (.*?) HTTP#', $buffer, $match) && $resource = $match[1]; 
    preg_match ("#Host: (.*?)\r\n#", $buffer, $match) && $host = $match[1]; 
    preg_match ("#Connection: (.*?)\r\n#", $buffer, $match) && $connection = $match[1]; 
    preg_match ("#Sec-WebSocket-Version: (.*?)\r\n#", $buffer, $match) && $version = $match[1]; 
    preg_match ("#Origin: (.*?)\r\n#", $buffer, $match) && $origin = $match[1]; 
    preg_match ("#Sec-WebSocket-Key:\s*(.*?)\r\n#", $buffer, $match) && $key = $match[1]; 
    preg_match ("#Sec-WebSocket-Protocol:\s*(.*?)\r\n#", $buffer, $match) && $protocol = $match[1]; 
    preg_match ("#Upgrade: (.*?)\r\n#", $buffer, $match) && $upgrade = $match[1]; 

    return array ($resource, $host, $connection, $version, $origin, $key, $protocol, $upgrade); 
} 

这很有趣,那些家伙只是改变了标准无保持旧的代码运作,并且不要在网上说任何事情(我真的试图很努力地谷歌)。有谁知道我的问题是什么?

+0

嗨,这是失败与不同的浏览器?明显的问题,但你没有指定它。 – pietro909

+0

@ pietro909 Chrome 41失败,Firefox表示:“Firefox无法建立到服务器的连接ws://192.168.1.34:38848/operator/modules/campaign/event_server.php” –

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@ pietro909 MacOS下的Safari 10.9说:“[错误] WebSocket连接到'ws://192.168.1.34:38848/operator/modules/campaign/event_server.php'失败:标头值(campaign.php,第0行)中的UTF-8序列无效” –

回答

4

所以我想出了问题。这就是缓冲区限制

显然,变量$buffer只包含大约4 KB的数据,并且由于来自dataTables的cookie,输入数据更多。并且Sec-WebSocket-Key标题是所有cookie。所以$key每次都是空的,给出错误Sec-WebSocket-Accept

建议:更深入调试

+0

我使用substr来获取'Sec-WebSocket-Key',但是,呃...我仍然得到相同的错误。你可以帮我吗? :( – Hydro

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