php与flash as3 socket通信传送文件实现代码
前段时间在flashseer看到有人提到:可以通过socket方式传送swf文件,让用户无法获取到swf文件…当时还没有出as3的反编译,所以对程序的保护没有在意.随着反编译程序的平民化,不希望别人看到源代码的朋友就比较着急…
通过socket方式传送swf文件来避免泄漏源代码的思路(只适用as3):让主程序的loader(前台swf)通过socket连接到后台程序,然后请求需要的主程序文件.后台读取主程序数据通过socket发送给主程序的loader.前台swf适用Loader.loadBytes方法显示主程序文件.
下面是测试的源程序:
package{ importflash.display.Sprite; importflash.net.Socket; importflash.events.*; importflash.errors.IOError; importflash.display.Loader; publicclassSocketTestextendsSprite{ publicfunctionSocketTest(){ varsocket=newSocket(); socket.connect("localhost",5277); socket.addEventListener(Event.CLOSE,closeHandler); socket.addEventListener(Event.CONNECT,connectHandler); socket.addEventListener(IOErrorEvent.IO_ERROR,ioErrorHandler); socket.addEventListener(SecurityErrorEvent.SECURITY_ERROR,securityErrorHandler); socket.addEventListener(ProgressEvent.SOCKET_DATA,socketDataHandler); varresponse:String; functionwriteln(str:String):void{ str+=""; try{ socket.writeUTFBytes(str); }catch(e:IOError){ trace(e); } } functionsendRequest():void{ trace("sendRequest"); response=""; writeln('bin'); socket.flush(); } functionreadResponse():void{ //接受数据 varstr:String=socket.readUTFBytes(socket.bytesAvailable); response+=str; //当数据以end结束的时候,数据传输结束 if(StringUtil.endsWith(str,'end')){ response=response.substr(0,response.length-3); //把字符串转换为ByteArray varba=Base64.decodeToByteArray(response); //trace('bytearray=====',ba); varl:Loader=newLoader(); //从ByteArray对象中所存储的二进制数据中加载。 l.loadBytes(ba); //trace(l.content); addChild(l); } } functioncloseHandler(e:Event):void{ trace("Socketclosed!"); } functionconnectHandler(e:Event):void{ trace("Socketconnected!"); sendRequest(); } functionioErrorHandler(e:IOErrorEvent):void{ trace("IOError!"); } functionsecurityErrorHandler(e:SecurityErrorEvent):void{ trace("SecurityError!"); } functionsocketDataHandler(e:ProgressEvent):void{ trace("Sockethavedata!"); readResponse(); } } } }
PHP:
//后台scoket程序,由于适用php写比较简单,就用php写了. //error_reporting(E_ALL); error_reporting(0); set_time_limit(0); ob_implicit_flush(); $address='localhost'; $port=5277; if(($sock=socket_create(AF_INET,SOCK_STREAM,SOL_TCP))<0){ echo'socket_create()failed:reason:'.socket_strerror($sock).'\n'; } if(($ret=socket_bind($sock,$address,$port))<0){ echo'socket_bind()failed:reason:'.socket_strerror($ret).'\n'; } if(($ret=socket_listen($sock,5))<0){ echo'socket_listen()failed:reason:'.socket_strerror($ret).'\n'; } echo'connect…………….'; do{ if(($msgsock=socket_accept($sock))<0){ echo'socket_accept()failed:reason:'.socket_strerror($msgsock).'\n'; break; } do{ socket_recv($msgsock,$buf,2048,0); if($buf==""){ socket_close($msgsock); echo"someonequit"; break; }elseif($buf=="bin"){ //读取主程序数据 $f=fopen('main.swf','r'); $data=fread($f,filesize('main.swf')); fclose($f); //转换为字符串 //echobase64_encode($data); $talkback=base64_encode($data).'end'; } //发送 socket_send($msgsock,$talkback,strlen($talkback),0); }while(true); socket_close($msgsock); }while(true); socket_close($sock);