本篇文章主要介绍php实现针对设置了防盗链网络相册图片的抓取功能，感兴趣的朋友参考下，希望对大家有所帮助。
本文实例讲述了php实现的网络相册图片防盗链完美破解方法，具体如下：
网络相册图片防盗链破解程序 - PHP版 这个防盗链破解版可以完美破解当下比较流行的: 百度相册,网易相册,360我喜欢等网站图片. 还可以实现简单的图片防盗链. 因为这个类是先进行获取远程图片, 然后再把图片发送到客户端,所以,算是进行了两次流量的传送.因此,会浪费空间流量,接下来,会开发缓存功能,这样可以实现节约流量!
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','va','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','me','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);
}
}
}
?>总结：以上就是本篇文的全部内容，希望能对大家的学习有所帮助。
相关推荐：
立即学习“PHP免费学习笔记（深入）”；
