电脑安全

您当前的位置:主页 > 电脑安全 >

轻松获取Google PageRank值的源码-网络编程

来源:[db:来源]标题:   感兴趣    编辑:电脑技术全能网 时间:2019-09-19 18:29

原标题:轻松获取Google PageRank值的源码-网络编程
   近来对google的PageRank比拟感兴致,始终想晓得怎样不必google toolbar来猎取pr值。用嗅探东西取得google toolbar收回恳求的url为:http://toolbarqueries.google.com//search?client=navclient-auto&ch=64170410360&ie=UTF-8&oe=UTF-8&features=Rank:FVN&q=info:http://www.ugia.cn,此中的要害局部为ch=64170410360,即CheckSum,不晓得这个是用的甚么算法得进去的。  苦苦搜寻以后,找到以下代码:  转自: http://meese.ath.cx/google via 思绪(http://silu.spirezone.com)<?php/** This code is released unto the public domain*///header("Content-Type: text/plain; charset=utf-8");define('GOOGLE_MAGIC', 0xE6359A60); //unsigned shift rightfunction zeroFill($a, $b){ $z = hexdec(80000000); if ($z &#038; $a) { $a = ($a>>1); $a &#038;= (~$z); $a |= 0x40000000; $a = ($a>>($b-1)); } else { $a = ($a>>$b); } return $a;} function mix($a,$b,$c) { $a -= $b; $a -= $c; $a ^= (zeroFill($c,13)); $b -= $c; $b -= $a; $b ^= ($a< <8); $c -= $a; $c -= $b; $c ^= (zeroFill($b,13)); $a -= $b; $a -= $c; $a ^= (zeroFill($c,12)); $b -= $c; $b -= $a; $b ^= ($a<<16); $c -= $a; $c -= $b; $c ^= (zeroFill($b,5)); $a -= $b; $a -= $c; $a ^= (zeroFill($c,3)); $b -= $c; $b -= $a; $b ^= ($a<<10); $c -= $a; $c -= $b; $c ^= (zeroFill($b,15)); return array($a,$b,$c);} function GoogleCH($url, $length=null, $init=GOOGLE_MAGIC) { if(is_null($length)) { $length = sizeof($url); } $a = $b = 0x9E3779B9; $c = $init; $k = 0; $len = $length; while($len >= 12) { $a = ($url[$k 0] ($url[$k 1]< <8) ($url[$k 2]<<16) ($url[$k 3]<<24));

上一篇:防止SQL注入攻击-网络编程

下一篇:没有了