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[英]Android files served by localhost won't open without network connection
[英]Websocket won't open connection
在过去的几个小时中,我一直在与Websocket作战,无法建立联系!
这些是握手协议:
GET /websocket/Server.php HTTP/1.1
Upgrade: websocket
Connection: Upgrade
Host: localhost:10020
Origin: http://localhost:8888
Sec-WebSocket-Key: fWN5C0N5EqQ/EnYET9C8DQ==
Sec-WebSocket-Version: 13
Sec-WebSocket-Extensions: x-webkit-deflate-frame
Cookie: SQLiteManager_currentLangue=2
MY RESPONSE:
HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: P3XPDvAuKuz0RoHKq8oDrGHRM9c=
我用来编写响应的PHP函数是:
function handle13Protocol($req){
$info = array();
$MAGICSTRING = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
if(preg_match("/GET (.*) HTTP/" ,$req,$match)){ $info["GET"]=$match[1]; }
if(preg_match("/Host: (.*)\r\n/" ,$req,$match)){ $info["HOST"]=$match[1]; }
if(preg_match("/Origin: (.*)\r\n/",$req,$match)){ $info["ORIGIN"]=$match[1]; }
if(preg_match("/Sec-WebSocket-Key: (.*)\r\n/",$req,$match)){ $info["KEY"]=$match[1]; }
if(preg_match("/\r\n(.*?)\$/",$req,$match)){ $data=$match[1]; }
echo "key = ".$info["KEY"]."\n";
$acceptKey = base64_encode(sha1($info["KEY"].$MAGICSTRING,true));
$upgrade = "HTTP/1.1 101 Switching Protocols\r\n" .
"Upgrade: websocket\r\n" .
"Connection: Upgrade\r\n" .
"Sec-WebSocket-Accept: $acceptKey".
"\r\n\r\n" ;
echo $upgrade;
return $upgrade;
}
在我的控制台上,它没有出现任何错误,并且说套接字没有断开。
但是我的JavaScript无法确认我的连接,即onopen函数。 我什至尝试了这个复制粘贴部分,以确保我拥有正确的js:
alert("Connecting to server now");
function init(){
var host = "ws://localhost:10020/websocket/Server.php";
try{
socket = new WebSocket(host);
log('WebSocket - status '+socket.readyState);
socket.onopen = function(msg){ alert("opened!"); };
socket.onmessage = function(msg){ log("Received: "+msg.data); };
socket.onclose = function(msg){ log("Disconnected - status "+this.readyState); };
}
catch(ex){ log(ex); }
$("msg").focus();
}
问题出在javascript中。 正确的JS是
alert("Connecting to server now");
function init(){
var host = "ws://localhost:10020/websocket/Server.php";
try{
socket = new WebSocket(host);
socket.onopen = function(msg){ alert("opened!"); };
socket.onmessage = function(msg){ log("Received: "+msg.data); };
socket.onclose = function(msg){ log("Disconnected - status "+this.readyState); };
}
catch(ex){ log(ex); }
$("msg").focus();
}
删除log方法后,因为它的行为不正确并引发错误...
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