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:

rush:as3;"> 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:

rush: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 "some one quit"; break; } else if ($buf == "bin") { //读取主程序数据 $f = fopen('main.swf','r'); $data = fread($f,filesize('main.swf')); fclose($f); //转换为字符串 //echo base64_encode($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);