php破解防盗链

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); } } } ?>