Question

我正在尝试使用以下代码在Actionscript中构建一个简单的聊天程序。不幸的是，并非所有内容似乎都正确传输，因为它在前几个数据包之后没有收到任何数据包（因此不会收到所有文本更新）。我使用Wireshark看到所有的数据包都被传输，所以我不确定为什么Flash没有处理所有数据包。这是我的代码：

<fx:Declarations>
    <!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<mx:Canvas id="login">
    <mx:TextInput id="host" text="Host name"></mx:TextInput>
    <mx:TextInput id="pswd" text="Key 1" keyDown="changePSWD()" y="30"></mx:TextInput>
    <mx:TextInput id="key" text="Key 2" keyDown="changeKey()" y="60"></mx:TextInput>
    <mx:TextInput id="port" text="Port" y="90"></mx:TextInput>
    <s:Button label="Connect" y="90" x="150" click="doConnect()"></s:Button><s:Button y="120" label="Listen for connections (Don't worry. We'll automatically reconfigure your router)" click="listen()"></s:Button>
</mx:Canvas>
<mx:Canvas id="chatScreen" visible="false">
    <s:TextArea id="mainchat" keyUp="sendTxt()" width="500" height="500"></s:TextArea>
</mx:Canvas>
<fx:Script>
    <![CDATA[
   import flash.events.Event;
   import flash.external.ExternalInterface;
   import flash.net.Socket;
   import flash.system.Security;
   import flash.utils.ByteArray;
   private var nativeSocket:Socket = new Socket();
    private function init():void {
        Security.allowDomain("*");
        nativeSocket.addEventListener(Event.CONNECT, connected);

        nativeSocket.connect("localhost", 337);

        }
        private function sendTxt():void {
            //Send update signal
            var buffer:ByteArray = new ByteArray();
            //Signal type
            buffer.writeByte(0);
            //Signal data
            buffer.writeUTF(mainchat.text);
            buffer.position = 0;
            securesocket.Write(buffer);
            securesocket.Flush();
        }
        private var securesocket:NativeSocket;
        private function changeKey():void {
            key.displayAsPassword = true;
        }
        private function changePSWD():void {
            pswd.displayAsPassword = true;
        }

        private function fail():void {
            ExternalInterface.call("alert", "Failed to establish a connection to the remote host.");
        }
        private function success(socket:NativeSocket):void {
            login.visible = false;
            chatScreen.visible = true;

            securesocket = socket;
            securesocket.onRecv = parseData;
            securesocket.ReadAsync(4086);
        }
        private function doConnect():void {
            nativeInterface.openSocket(host.text, int(port.text), pswd.text, key.text, success, fail);

        }
        private function parseData(buffer:ByteArray, sender:NativeSocket):void {
            try {
            buffer.position = 0;
            var opcode:int = buffer.readByte();
            if (opcode == 0) {
                mainchat.text = buffer.readUTF();
            }
            }catch (Exception:Error) {

            }
            securesocket.ReadAsync(9077);
        }
        private function clientConnectedToServer(endpoint:String, socket:NativeSocket):void {
            try {
            ExternalInterface.call("alert", endpoint + " has connected to Chat. The server listening socket will now close and you may begin your secure chat session.");
            }catch (Exception:Error) {

            }
            mainserv.Stop();
            //Begin chat
            securesocket = socket;
            securesocket.onRecv = parseData;
            securesocket.ReadAsync(999999);
            chatScreen.visible = true;
        }
        private var mainserv:server;
        private function serverConnected(socket:server):void {
            socket.clientConnect = clientConnectedToServer;
        mainserv = socket;

        login.visible = false;

            }
        private function listen():void {
            nativeInterface.listenSocket(int(port.text), "xChat-server" + port.text, pswd.text, key.text, serverConnected);
        }
        private var nativeInterface:NativeInterface;
        private function connected(evt:Event):void {
            nativeInterface = new NativeInterface(nativeSocket);
            }
    ]]>
</fx:Script>

Answer 1

实施跨域策略后，Flash / Flex应用程序正确通信

您在端口＃843上与之通信的文件

查看Cross-domain Policy File Specifications

这是一个示例策略文件：

<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM
"http://www.adobe.com/xml/dtds/cross-domain-policy.dtd">

<cross-domain-policy>
    <site-control permitted-cross-domain-policies="master-only"/>
    <allow-access-from domain="*"/>
    <allow-http-request-headers-from domain="*" headers="SOAPAction"/>
</cross-domain-policy>

数据包问题 - 在前几个数据包之后没有收到任何信息

1 个答案: