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);