php中curl模拟登陆用户百度知道的例子

时间：2015-01-23 来源：西部数据作者：西部数据

最近弄了一个工具,希望能获取自己百度网盘里面的数据但又不想公开数据,于是想到了模拟登陆百度,用常规的模拟登陆测试了下发现不行,抓取登陆时的数据才发现,其实百度登陆过程中跳转了几次页面,如果仅仅对http://passport.baidu.com/v2/api/?login一个页面获取cookie是不完整的那样就只有BAIDUID的值,而仅仅这个cookie值是没有多少作用的.

通过对抓包数据的分析,实际登陆过程中是先请求了一次http://passport.baidu.com/v2/api/?getapi&class=login&tpl=mn&tangram=true这个页面,服务器同时给浏览器设置两个cookie,一个BAIDUID的cookie值,这个应该是与seesion id相关的;另一个是

Set-Cookie:

HOSUPPORT=1; expires=Thu,19-Aug-2021 15:41:37 GMT; path=/; domain=passport.baidu.com; httponly

推测这个应该是百度检测浏览器是否支持cookie；

再次请求该页面,获取网页数据会得到一个token值用于登陆;

然后登陆成功会得到BDUSS等相关的cookie值,以上才是登陆成功,记录下上面的cookie即可！

下面是简单的请求及登陆函数集合,作为基础类吧,可能简单了点,以后再完善吧！

代码如下:

<?php

/**

* 百度基础类

* @author  qaulau@hotmail.com

* @file    baidu.php

* @date    2013-6-2  www.phpfensi.com

*/

class baidu{

private $cookie = '';

private $username = '';

private $password = '';

const COOKIE_DIR = 'temp';   //cookie存放目录

const COOKIE_VALIDATE = 604800; //cookie有效期,默认为7天

const SECRET_KEY = 'hAFS6as8askNBVSuiealkkw'; //密钥用于加密cookie文件名，防止保存的cookie路径被猜测

private function http_request($url, $post_data, $referef,$header = true){

  $ch = curl_init();

  curl_setopt($ch, CURLOPT_URL, $url);

  if ($post_data != ""){

   curl_setopt($ch, CURLOPT_POST, 1);

   curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);

  }

  if ($referef != ""){

   curl_setopt($ch, CURLOPT_REFERER, $referef);

  }

  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);

  curl_setopt($ch, CURLOPT_HEADER, $header);

  curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31");

  if ($this->cookie != ""){

   curl_setopt($ch, CURLOPT_COOKIE, $this->cookie);

  }

  $data = curl_exec($ch);

  curl_close($ch);

  if ($header){

   preg_match_all('/Set-Cookie:((.+)=(.+))$/m ', $data, $cookies);

   if(is_array($cookies) && count($cookies) > 1 && count($cookies[1]) > 0){

    foreach($cookies[1] as $i => $k){

     $cookieinfos = explode(";", $k);

     if(is_array($cookieinfos) && count($cookieinfos) > 1){

      $this->cookie .= $cookieinfos[0];

      $this->cookie .= "; ";

     }

    }

   }

  }

  return $data;

}

private function login(){

  //生成一个cookie

  $ret = $this->http_request("https://passport.baidu.com/v2/api/?getapi&class=login&tpl=mn&tangram=true", "", "");

  //获取token并保存cookie

  $ret = $this->http_request("https://passport.baidu.com/v2/api/?getapi&class=login&tpl=mn&tangram=true", "", "");

  preg_match_all('/login_token='(.+)'/', $ret, $tokens);

  $login_token = $tokens[1][0];

  //登陆并保存cookie

  $post_data = array();

  $post_data['username'] = $this->username;

  $post_data['password'] = $this->password;

  $post_data['token'] = $login_token;

  $post_data['charset'] = "UTF-8";

  $post_data['callback'] = "parent.bd12Pass.api.login._postCallback";

  $post_data['index'] = "0";

  $post_data['isPhone'] = "false";

  $post_data['mem_pass'] = "on";

  $post_data['loginType'] = "1";

  $post_data['safeflg'] = "0";

  $post_data['staticpage'] = "https://passport.baidu.com/v2Jump.html";

  $post_data['tpl'] = "mn";

  $post_data['u'] = "http://www.baidu.com/";

  $post_data['verifycode'] = "";

  $ret = $this->http_request("http://passport.baidu.com/v2/api/?login", $post_data, "https://passport.baidu.com/v2/?login&tpl=mn&u=http%3A%2F%2Fwww.baidu.com%2F");

  //记录下所有cookie

  $this->writeCookie();

}

private function writeCookie(){

  if(!file_exists(self::COOKIE_DIR)){

   @mkdir(self::COOKIE_DIR) && touch(self::COOKIE_DIR.'/index.html');

  }

  $filename = self::COOKIE_DIR.'/'.md5($this->username.self::SECRET_KEY);

  file_put_contents($filename, $this->cookie);

}

public function baidu($username,$password){

  $this->username = $username;

  $this->password = $password;

  $filename = self::COOKIE_DIR.'/'.md5($this->username.self::SECRET_KEY);

  if ((@filemtime($filename)+ self::COOKIE_VALIDATE > time()) && ($cookie = file_get_contents($filename))!= ''){

  //如果cookie在有效期内且不为空

   $this->cookie = $cookie;

  }else {

   $this->login();

  }

}

/** www.phpfensi.com

  * 请求页面

  * @param string $url  ：页面地址

  * @param string $referef ：引用页面

  * @param string $post_data ：post数据,如果填写则为post方式否则为get方式

  * 返回页面数据

  */

public function request($url,$referef = '',$post_data = ''){

  return $this->http_request($url,$referef,$post_data,false);

}

}

这个只是基本的类,只涉及登陆及请求与提交数据,可在此基础上使用,例如请求百度云网盘,代码如下:

$baidu = new baidu('用户名','密码');

$data = $baidu->request('http://pan.baidu.com/api/list?channel=chunlei&clienttype=0&web=1&num=100&page=1&dir=%2F','http://pan.baidu.com');

echo $data;