php与flash as3 socket通信传送文件实现代码_php技巧

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 {
import flash.display.Sprite;
import flash.net.Socket;
import flash.events.*;
import flash.errors.IOError;
import flash.display.Loader;

public class SocketTest extends Sprite {
  public function SocketTest() {
  var socket = new Socket();
  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);
  var response:String;

  function writeln(str:String):void {
   str+="";
   try {
   socket.writeUTFBytes(str);
   } catch (e:IOError) {
   trace(e);
   }
  }
  function sendRequest():void {
   trace("sendRequest");
   response="";
   writeln('bin');
   socket.flush();
  }
  function readResponse():void {
   //接受数据
   var str: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
   var ba=Base64.decodeToByteArray(response);
   //trace('bytearray=====',ba);
   var l:Loader = new Loader();
   //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);
   }
  }
  function closeHandler(e:Event):void {
   trace("Socket closed! ");
  }
  function connectHandler(e:Event):void {
   trace("Socket connected!");
   sendRequest();
  }
  function ioErrorHandler(e:IOErrorEvent):void {
   trace("IOError!");
  }
  function securityErrorHandler(e:SecurityErrorEvent):void {
   trace("SecurityError!");
  }
  function socketDataHandler(e:ProgressEvent):void {
   trace("Socket have data!");
   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))