php实现的网络相册图片防盗链完美破解方法

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<?php

/**

* 网络相册图片防盗链破解程序 - PHP版

*

* 使用方法：

*

* http://yourdomain/url.php?url=http://hiphotos.baidu.com/verdana/pic/item/baidupicture.jpg&referer=

* 其中url是指需要破解的图片URL,而referer是为了兼容一些不需要设置来路域名才能显示的相册,例如360我喜欢网,必须设置来路为空才能正常浏览. 所以,此时应该设置referer为1

*

* @author 雪狐博客

* @version 1.0

* @since July 16, 2012

* @URL http://www.xuehuwang.com

*/

class Frivoller

{

/**

* HTTP 版本号 (1.0, 1.1) , 百度使用的是 version 1.1

*

* @var string

*/

protected $version;

/**

* 进行HTTP请求后响应的数据

*

* @var 字符串格式

*/

protected $body;

/**

* 需要获取的远程URL

*

* @var 字符串格式

*/

protected $link;

/**

* An array that containing any of the various components of the URL.

*

* @var array

*/

protected $components;

/**

* HTTP请求时HOST数据

*

* @var 字符串

*/

protected $host;

/**

* The path of required file.

* (e.g. '/verdana/abpic/item/mygirl.png')

*

* @var string

*/

protected $path;

/**

* The HTTP referer, extra it from original URL

*

* @var string

*/

protected $referer;

/**

* The HTTP method, 'GET' for default

*

* @var string

*/

protected $method = 'GET';

/**

* The HTTP port, 80 for default

*

* @var int

*/

protected $port = 80;

/**

* Timeout period on a stream

*

* @var int

*/

protected $timeout = 100;

/**

* The filename of image

*

* @var string

*/

protected $filename;

/**

* The ContentType of image file.

* image/jpeg, image/gif, image/png, image

*

* @var string

*/

protected $contentType;

/**

* Frivoller constructor

*

* @param string $link

*/

public function __construct($link,$referer='')

{

$this->referer = $referer;

// parse the http link

$this->parseLink($link);

// begin to fetch the image

$stream = pfsockopen($this->host, $this->port, $errno, $errstr, $this->timeout);

if (!$stream){

header("Content-Type: $this->contentType;");

echo $this->CurlGet($link);

}else{

fwrite($stream, $this->buildHeaders());

$this->body = "";

$img_size = get_headers($link,true);

while (!feof($stream)) {

$this->body .= fgets($stream, $img_size['Content-Length']);

//fwrite($jpg,fread($stream, $img_size['Content-Length']));

}

$content = explode("\r\n\r\n", $this->body, 2);

$this->body = $content[1];

fclose($stream);

// send 'ContentType' header for saving this file correctly

// 如果不发送CT，则在试图保存图片时，IE7 会发生错误 (800700de)

// Flock, Firefox 则没有这个问题，Opera 没有测试

header("Content-Type: $this->contentType;");

header("Cache-Control: max-age=315360000");

echo $this->body;

//保存图片

//file_put_contents('hello.jpg', $this->body);

}

}

/**

* Compose HTTP request header

*

* @return string

*/

private function buildHeaders()

{

$request = "$this->method $this->path HTTP/1.1\r\n";

$request .= "Host: $this->host\r\n";

$request .= "Accept-Encoding: gzip, deflate\r\n";

$request .= "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; zh-CN; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1\r\n";

$request .= "Content-Type: image/jpeg\r\n";

$request .= "Accept: */*\r\n";

$request .= "Keep-Alive: 300\r\n";

$request .= "Referer: $this->referer\r\n";

$request .= "Cache-Control: max-age=315360000\r\n";

$request .= "Connection: close\r\n\r\n";

return $request;

}

/**

* Strip initial header and filesize info

*/

private function extractBody(&$body)

{

// The status of link

if(strpos($body, '200 OK') > 0) {

// strip header

$endpos = strpos($body, "\r\n\r\n");

$body = substr($body, $endpos + 4);

// strip filesize at nextline

$body = substr($body, strpos($body, "\r\n") + 2);

}

}

/**

* Extra the http url

*

* @param $link

*/

private function parseLink($link)

{

$this->link = $link;

$this->components = parse_url($this->link);

$this->host = $this->components['host'];

$this->path = $this->components['path'];

if(empty($this->referer)){

$this->referer = $this->components['scheme'] . '://' . $this->components['host'];

}elseif($this->referer == '1'){

$this->referer = '';

}

$this->filename = basename($this->path);

// extract the content type

$ext = substr(strrchr($this->path, '.'), 1);

if ($ext == 'jpg' or $ext == 'jpeg') {

$this->contentType = 'image/pjpeg';

}

elseif ($ext == 'gif') {

$this->contentType = 'image/gif';

}

elseif ($ext == 'png') {

$this->contentType = 'image/x-png';

}

elseif ($ext == 'bmp') {

$this->contentType = 'image/bmp';

}

else {

$this->contentType = 'application/octet-stream';

}

}

//抓取网页内容

function CurlGet($url){

$url = str_replace('&','&',$url);

$curl = curl_init();

curl_setopt($curl, CURLOPT_URL, $url);

curl_setopt($curl, CURLOPT_HEADER, false);

curl_setopt($curl, CURLOPT_REFERER,$url);

curl_setopt($curl, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; SeaPort/1.2; Windows NT 5.1; SV1; InfoPath.2)");

curl_setopt($curl, CURLOPT_COOKIEJAR, 'cookie.txt');

curl_setopt($curl, CURLOPT_COOKIEFILE, 'cookie.txt');

curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 0);

$values = curl_exec($curl);

curl_close($curl);

return $values;

}

}

/**

* 取得根域名

*

* @author lonely

* @create 2011-3-11

* @version 0.11

* @lastupdate lonely

* @package Sl

*/

class RootDomain{

private static $self;

private $domain=null;

private $host=null;

private $state_domain;

private $top_domain;

/**

* 取得域名分析实例

* Enter description here ...

*/

public static function instace(){

if(!self::$self)

self::$self=new self();

return self::$self;

}

public function __construct(){

$this->state_domain=array(

'al','dz','af','ar','ae','aw','om','az','eg','et','ie','ee','ad','ao','ai','ag','at','au','mo','bb','pg','bs','pk','py','ps','bh','pa','br','by','bm',

'bg','mp','bj','be','is','pr','ba','pl','bo','bz','bw','bt','bf','bi','bv','kp','gq','dk','de','tl','tp','tg','dm','do','ru','ec','er','fr','fo','pf','gf','tf','v

a','ph','fj','fi','cv','fk','gm','cg','cd','co','cr','gg','gd','gl','ge','cu','gp','gu','gy','kz','ht','kr','nl','an','hm','hn','ki','dj','kg','gn','gw','ca'

,'gh','ga','kh','cz','zw','cm','qa','ky','km','ci','kw','cc','hr','ke','ck','lv','ls','la','lb','lt','lr','ly','li','re','lu','rw','ro','mg','im','mv','mt','mw

','my','ml','mk','mh','mq','yt','mu','mr','us','um','as','vi','mn','ms','bd','pe','fm','mm','md','ma','mc','mz','mx','nr','np','ni','ne','

ng','nu','no','nf','na','za','aq','gs','eu','pw','pn','pt','jp','se','ch','sv','ws','yu','sl','sn','cy','sc','sa','cx','st','sh','kn','lc','sm','pm','vc

','lk','sk','si','sj','sz','sd','sr','sb','so','tj','tw','th','tz','to','tc','tt','tn','tv','tr','tm','tk','wf','vu','gt','ve','bn','ug','ua','uy','uz','es','eh','gr','hk

','sg','nc','nz','hu','sy','jm','am','ac','ye','iq','ir','il','it','in','id','uk','vg','io','jo','vn','zm','je','td','gi','cl','cf','cn','yr'

);

$this->top_domain=array('com','arpa','edu','gov','int','mil','net','org','biz','info','pro','name','museum','coop','aero','xxx','idv','m

e','mobi');

$this->url=$_SERVER['HTTP_HOST'];

}

/**

* 设置URL

* Enter description here ...

* @param string $url

*/

public function setUrl($url=null){

$url=$url?$url:$this->url;

if(empty($url))return $this;

if(!preg_match("/^http:/is", $url))

$url="http://".$url;

$url=parse_url(strtolower($url));

$urlarr=explode(".", $url['host']);

$count=count($urlarr);

if ($count<=2){

$this->domain=$url['host'];

}else if ($count>2){

$last=array_pop($urlarr);

$last_1=array_pop($urlarr);

if(in_array($last, $this->top_domain)){

$this->domain=$last_1.'.'.$last;

$this->host=implode('.', $urlarr);

}else if (in_array($last, $this->state_domain)){

$last_2=array_pop($urlarr);

if(in_array($last_1, $this->top_domain)){

$this->domain=$last_2.'.'.$last_1.'.'.$last;

$this->host=implode('.', $urlarr);

}else{

$this->host=implode('.', $urlarr).$last_2;

$this->domain=$last_1.'.'.$last;

}

}

}

return $this;

}

/**

* 取得域名

* Enter description here ...

*/

public function getDomain(){

return $this->domain;

}

/**

* 取得主机

* Enter description here ...

*/

public function getHost(){

return $this->host;

}

}

$referer = array('xuehuwang.com','zangbala.cn','qianzhebaikou.net','sinaapp.com','163.com','sina.com.cn','weibo.com','abc.com');

// Get the url, maybe you should check the given url

if (isset($_GET['url']) and $_GET['url'] != '') {

//获取来路域名

$site = (isset($_SERVER['HTTP_REFERER']) && !empty($_SERVER['HTTP_REFERER'])) ? $_SERVER['HTTP_REFERER'] : '';

//匹配是否是一个图片链接

if(preg_match('/(http|https|ftp|rtsp|mms):(\/\/|\\\\){1}((\w)+[.]){1,}([a-zA-Z]|[0-9]{1,3})(\S*\/)((\S)+[.]{1}(gif|jpg|png|bmp))/i',$_GET['url'])){

if(!empty($site)){

$tempu = parse_url($site);

$host = $tempu['host'];

$root = new RootDomain();

$root->setUrl($site);

if(in_array($root->getDomain(),$referer)){

$img_referer = (isset($_GET['referer']) && !empty($_GET['referer']))? trim($_GET['referer']) : '';

new Frivoller($_GET['url'],$img_referer);

}

}else{

$img_referer = (isset($_GET['referer']) && !empty($_GET['referer']))? trim($_GET['referer']) : '';

new Frivoller($_GET['url'],$img_referer);

}

}

}

?>