通过socket方式传送swf文件来避免泄漏

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:

前台loader:

//-------------

//Base64和StringUtil在网上自己找吧

import Base64;

import StringUtil;

var socket = new Socket();

socket.connect("localhost", 11915);

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

oader = 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(event:Event):void {

trace("closeHandler: " + event);

}

function connectHandler(event:Event):void {

trace("connectHandler: " + event);

sendRequest();

}

function ioErrorHandler(event:IOErrorEvent):void {

trace("ioErrorHandler: " + event);

}

function securityErrorHandler(event:SecurityErrorEvent):void {

trace("securityErrorHandler: " + event);

}

function socketDataHandler(event

rogressEvent):void {

trace("socketDataHandler: " + event);

readResponse();

}

//后台scoket程序,由于适用php写比较简单,就用php写了.

<?php

//error_reporting(E_ALL);

error_reporting(0);

set_time_limit(0);

ob_implicit_flush();

$address = 'localhost';

$port = 11915;

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);

?>