rendered paste body<?php//Uncomment following line to view debug results//echo "<pre>";print_r($gpr->debugResult);echo "</pre>";Class GooglePR { //Public vars var $googleDomains = Array("toolbarqueries.google.com","www.google.com","toolbarqueries.google.com.tr","www.google.com.tr","toolbarqueries.google.de","www.google.de", "64.233.187.99", "72.14.207.99"); var $debugResult = Array(); var $userAgent = "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021204"; var $cacheDir = ""; var $maxCacheAge = 86400; // = 24h (yes, in seconds) var $useCache = false; var $debug = false; //Private vars var $GOOGLE_MAGIC = 0xE6359A60; var $PageRank = -1; var $cacheExpired = false; function GetPR($url,$forceNoCache = false) { $total_exec_start = $this->microtimeFloat(); $result=array("",-1); if (($url.""!="")&&($url.""!="http://")) { $this->debugRes("url", $url); $this->cacheDir = (strlen($this->cacheDir) > 0)? $this->cacheDir:dirname(__FILE__)."/prcache/"; $this->cacheDir .= (substr($this->cacheDir,-1) != "/")? "/":""; // check for protocol $url_ = "info:".((substr(strtolower($url),0,7)!="http://")? "http://".$url:$url); $host = $this->googleDomains[mt_rand(0,count($this->googleDomains)-1)]; $target = "/search"; $querystring = sprintf("client=navclient-auto&ch=6%u&features=Rank&q=",$this->GoogleCH($this->strord($url_))); $querystring .= urlencode($url_); $contents=""; $this->debugRes("host", $host); $this->debugRes("query_string", $querystring); $this->debugRes("user_agent", $this->userAgent); $query_exec_start = $this->microtimeFloat(); if ($forceNoCache == true) { $this->debugRes("force_no_cache", "true"); } elseif ($contents = $this->readCacheResult($url)) { $this->debugRes("read_from_cache", "true"); } else { $this->cacheExpired = true; } // let's get ranking if (strlen(trim($contents)) == 0) if (@function_exists("curl_init")) { // allways use curl if available for performance issues $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, "http://".$host.$target."?".$querystring); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0); curl_setopt($ch, CURLOPT_USERAGENT, $this->userAgent); if (!($contents = trim(@curl_exec($ch)))) { $this->debugRes("error","curl_exec failed"); } curl_close ($ch); $this->debugRes("method", "curl"); } else { $this->debugRes("error","curl not installed"); // use fsockopen as secondary method, to submit user agent if ($socket = @fsockopen($host, "80", $errno, $errstr, 30)) { $request = "GET $target?$querystring HTTP/1.0\r\n"; $request .= "Host: $host\r\n"; $request .= "User-Agent: ".$this->userAgent."\r\n"; $request .= "Accept-Language: en-us, en;q=0.50\r\n"; $request .= "Accept-Charset: ISO-8859-1, utf-8;q=0.66, *;q=0.66\r\n"; $request .= "Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,video/x-mng,image/png,image/jpeg,image/gif;q=0.2,text/css,*/*;q=0.1\r\n"; $request .= "Connection: close\r\n"; $request .= "Cache-Control: max-age=0\r\n\r\n"; stream_set_timeout ( $socket,10); fwrite( $socket, $request ); $ret = ''; while (!feof($socket)) { $ret .= fread($socket,4096); } fclose($socket); $contents = trim(substr($ret,strpos($ret,"\r\n\r\n") + 4)); $this->debugRes("method", "fsockopen"); } else { $this->debugRes("error","fsockopen failed"); // this way could cause problems because the Browser Useragent is not set... if ($contents = trim(@file_get_contents("http://".$host.$target."?".$querystring))) { $this->debugRes("method", "file_get_contents"); } else { $this->debugRes("error","file_get_contents failed"); } } } if ($this->cacheExpired == true) $this->updateCacheResult($url,$contents); $this->debugRes("query_exec_time",$this->microtimeFloat() - $query_exec_start); $result[0]=$contents; // Rank_1:1:0 = 0 // Rank_1:1:5 = 5 // Rank_1:1:9 = 9 // Rank_1:2:10 = 10 etc $p=explode(":",$contents); if (isset($p[2])) $result[1]=$p[2]; } if($result[1] == -1) $result[1] = 0; $this->PageRank =(int)$result[1]; $this->debugRes("total_exec_time", $this->microtimeFloat() - $total_exec_start); $this->debugRes("result", $result); return $this->PageRank; } function debugRes($what,$sowhat) { if($this->debug == true) { $debugbt = debug_backtrace(); $what = trim($what); $sowhat = trim($sowhat) . " (Line : ".$debugbt[0]["line"].")"; if ($what == "error") { $this->debugResult[$what][] = $sowhat; } else { $this->debugResult[$what] = $sowhat; } } } function microtimeFloat() { list($usec, $sec) = explode(" ", microtime()); return ((float)$usec + (float)$sec); } function readCacheResult($url) { if ($this->useCache != true) { return false; } if (!is_dir($this->cacheDir)) { $this->debugRes("error","please create {$this->cacheDir}"); return false; } $urlp = parse_url($url); $host_ = explode(".",$urlp["host"]); $path_ = (strlen($urlp["query"])>0)? urlencode($urlp["path"].$urlp["query"]):"default"; $cache_file = $this->cacheDir; for ($i = count($host_)-1;$i>=0;$i--) { $cache_file .= $host_[$i]."/"; } $cache_file .= $path_; $this->debugRes("cache_file", $cache_file); if (file_exists($cache_file)) { $mtime = filemtime($cache_file); if (time() - $mtime > $this->maxCacheAge) { $this->debugRes("cache", "expired"); $this->cacheExpired = true; return false; } else { $this->cacheExpired = false; $this->debugRes("cache_age", time() - $mtime); return file_get_contents($cache_file); } } $this->debugRes("error","cache file not exists (reading)"); return false; } function updateCacheResult($url,$content) { if ($this->useCache != true) { return false; } if (!is_dir($this->cacheDir)) { $this->debugRes("error","please create {$this->cacheDir}"); return false; } $urlp = parse_url($url); $host_ = explode(".",$urlp["host"]); $path_ = (strlen($urlp["query"])>0)? urlencode($urlp["path"].$urlp["query"]):"default"; $cache_file = $this->cacheDir; for ($i = count($host_)-1;$i>=0;$i--) { $cache_file .= $host_[$i]."/"; } $cache_file .= $path_; if (!file_exists($cache_file)) { $this->debugRes("error","cache file not exists (writing)"); $cache_file_tmp = substr($cache_file,strlen($this->cacheDir)); $cache_file_tmp = explode("/",$cache_file_tmp); $cache_dir_ = $this->cacheDir; for ($i = 0;$i<count($cache_file_tmp)-1;$i++) { $cache_dir_ .= $cache_file_tmp[$i]."/"; if (!file_exists($cache_dir_)) { if (!@mkdir($cache_dir_,0777)) { $this->debugRes("error","unable to create cache dir: $cache_dir_"); //break; } } } if (!@touch($cache_file)) $this->debugRes("error","unable to create cache file"); if (!@chmod($cache_file,0777)) $this->debugRes("error","unable to chmod cache file"); } if (is_writable($cache_file)) { if (!$handle = fopen($cache_file, 'w')) { $this->debugRes("error", "unable to open $cache_file"); return false; } if (fwrite($handle, $content) === FALSE) { $this->debugRes("error", "unable to write to $cache_file"); return false; } fclose($handle); $this->debugRes("cached", date("Y-m-d H:i:s")); return true; } $this->debugRes("error", "$cache_file is not writable"); return false; } function zeroFill($a, $b) { $z = hexdec(80000000); if ($z & $a) { $a = ($a>>1); $a &= (~$z); $a |= 0x40000000; $a = ($a>>($b-1)); } else { $a = ($a>>$b); } return $a; } function mix($a,$b,$c) { $a -= $b; $a -= $c; $a ^= ($this->zeroFill($c,13)); $b -= $c; $b -= $a; $b ^= ($a<<8); $c -= $a; $c -= $b; $c ^= ($this->zeroFill($b,13)); $a -= $b; $a -= $c; $a ^= ($this->zeroFill($c,12)); $b -= $c; $b -= $a; $b ^= ($a<<16); $c -= $a; $c -= $b; $c ^= ($this->zeroFill($b,5)); $a -= $b; $a -= $c; $a ^= ($this->zeroFill($c,3)); $b -= $c; $b -= $a; $b ^= ($a<<10); $c -= $a; $c -= $b; $c ^= ($this->zeroFill($b,15)); return array($a,$b,$c); } function GoogleCH($url, $length=null) { if(is_null($length)) { $length = sizeof($url); } $a = $b = 0x9E3779B9; $c = $this->GOOGLE_MAGIC; $k = 0; $len = $length; while($len >= 12) { $a += ($url[$k+0] +($url[$k+1]<<8) +($url[$k+2]<<16) +($url[$k+3]<<24)); $b += ($url[$k+4] +($url[$k+5]<<8) +($url[$k+6]<<16) +($url[$k+7]<<24)); $c += ($url[$k+8] +($url[$k+9]<<8) +($url[$k+10]<<16)+($url[$k+11]<<24)); $mix = $this->mix($a,$b,$c); $a = $mix[0]; $b = $mix[1]; $c = $mix[2]; $k += 12; $len -= 12; } $c += $length; switch($len) /* all the case statements fall through */ { case 11: $c+=($url[$k+10]<<24); case 10: $c+=($url[$k+9]<<16); case 9 : $c+=($url[$k+8]<<8); /* the first byte of c is reserved for the length */ case 8 : $b+=($url[$k+7]<<24); case 7 : $b+=($url[$k+6]<<16); case 6 : $b+=($url[$k+5]<<8); case 5 : $b+=($url[$k+4]); case 4 : $a+=($url[$k+3]<<24); case 3 : $a+=($url[$k+2]<<16); case 2 : $a+=($url[$k+1]<<8); case 1 : $a+=($url[$k+0]); /* case 0: nothing left to add */ } $mix = $this->mix($a,$b,$c); /*-------------------------------------------- report the result */ return $mix[2]; } //converts a string into an array of integers containing the numeric value of the char function strord($string) { for($i=0;$i<strlen($string);$i++) { $result[$i] = ord($string{$i}); } return $result; }}$gpr = new GooglePR();echo $gpr->GetPR("http://www.google.com");?>