hemono

PHP+CURL登录人人(校内)网passport

2009年09月27日下午 56:55 | 作者：hemon

由于人人网(renren.com)和开心网(kaixin.com)对接，新建了个passport服务，用于统一验证，模拟登录的方式也改了，请看通行证登录原理：

1.应用提交验证信息给passport:
email/password
origURL/domain
2.passport分配全局SessionID:
XNESSESSIONID=c3b27ade6716;
3.passport验证帐号/密码
4.用户验证成功，Location 回应用的 callbackUrl:
http://login.renren.com/callback.do?t=ad34b89977d3a45a7bd0b49ea568ad436&origURL=http%3A%2F%2Fwww.renren.com%2FSysHome.do
5.应用的callbackUrl负责获取用户信息，并分配当前的UID:
xnsid=48863dc
6.跳转到应用的首页origURL
function xiaonei_login($email, $password){
$url = ‘http://passport.renren.com/PLogin.do’;
$opt = array(
// LOCATION(自动跳转1次)
CURLOPT_MAXREDIRS => 1,
CURLOPT_FOLLOWLOCATION => 1,
CURLOPT_AUTOREFERER => 1,
// POST(提交验证数据)
CURLOPT_POST => 1,
CURLOPT_POSTFIELDS => “email=$email&password=$password&origURL=http%3A%2F%2Fwww.renren.com%2FSysHome.do&domain=renren.com”,
// COOKIE(保存cookie)
CURLOPT_COOKIEJAR => ‘./cookie’,
CURLOPT_COOKIEFILE => ‘./cookie’,
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt_array($ch, $opt);
curl_exec($ch);
curl_close($ch);

}

分类：php, 未分类 | 没有评论

dbcached批量获取键值（get keys）问题

2008年10月19日上午 10:38 | 作者：hemon

dbcached（http://code.google.com/p/dbcached/）是一种memcached缓存持久化解决方案。

add()之后，会通过udp包发给nmdp存储

如果get()未命中，则向nmdp取回数据，写入memcached

问题描述

Memcache::get支持单个键和批量键获取：
string Memcache::get ( string key )
array Memcache::get ( array keys )

当使用 Memcache::get ( array keys ) 时，如果key未命中：
dbcached向nmdp取回数据后，所有键值均为keys中最后一个键值。

例：

var_dump($memcache->get(array(’20020410070133′,’20040410070111′)));

首次请求，键值值全部为最后一个键(20040410070111)的键值：

array

  '20020410070133' => string '郭蓉' (length=6)
  '20040410070111' => string '郭蓉' (length=6)

刷新之后，由于数据已经读入memcached，输出正常：

array
  '20020410070133' => string '张伟' (length=6)
  '20040410070111' => string '郭蓉' (length=6)

解决方案（临时）

get两次：！

$memcache->get($keys);
return $memcache->get($keys);

分类：php, 未分类 | 没有评论

获取googlePR

2008年08月20日上午 04:05 | 作者：hemon

网上找到一个获取googlePR的class，按照自己的编码规范，重构了一下：

<?php
/**
* $url = 'http://www.hemon.cn';
* $pageRank = new GooglePR;
* echo $pageRank->getPageRank($url);
*/
define('GOOGLE_MAGIC', 0xE6359A60);
class GooglePR{
function getPageRank($url){
$query = $this->getQuery($url);
$data = $this->getRankData($query);
$pageRank = $this->parseRank($data);
return $pageRank;
}
function getQuery($url){
$ch = $this->getCh($url);
$query = "/search?client=navclient-auto&ch=$ch&features=Rank&q=info:$url";
return $query;
}
function getRankData($query){
//return file_get_contents('http://www.google.com' . $query);
$fp = fsockopen("www.google.com", 80, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)<br />\n";
} else {
$out = "GET $query HTTP/1.1\r\n" ;
$out .= "Host: www.google.com\r\n" ;
$out .= "Connection: Close\r\n\r\n" ;
fwrite($fp, $out);
while (!feof($fp)) {
$data .= fgets($fp, 128);
}
fclose($fp);
}
return $data;
}
function parseRank($data){
$pos = strpos($data, "Rank_1:"); // Rank_1:1:4/Rank_1:2:10
if($pos === false){
$pageRank = 0;
}else{
$len = substr($data, $pos+7, 1);
$pageRank = substr($data, $pos+9, $len);
}
return $pageRank;
}
function getCh($url, $length=null, $init=GOOGLE_MAGIC) {
$url = $this->strord("info:" . $url);
if(is_null($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));
$b += ($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){
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]);
}
$mix = $this->mix($a, $b, $c);
/* report the result */
return "6" . $mix[2];
}
function zeroFill($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, $c);
}
//converts a string into an array of integers containing the numeric value of the char
function strord($string) {
$strlen = strlen($string);
for($i = 0; $i < $strlen; $i++) {
$result[$i] = ord($string{$i});
}
return $result;
}
}
?>