php中curl模拟登陆用户百度知道的例子

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.phprm.com
 */
class baidu {
    private $cookie = &#39;&#39;;
    private $username = &#39;&#39;;
    private $password = &#39;&#39;;
    const COOKIE_DIR = &#39;temp&#39;; //cookie存放目录
    const COOKIE_VALIDATE = 604800; //cookie有效期,默认为7天
    const SECRET_KEY = &#39;hAFS6as8askNBVSuiealkkw&#39;; //密钥用于加密cookie文件名，防止保存的cookie路径被猜测
    private function http_request($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(&#39;/Set-Cookie:((.+)=(.+))$/m &#39;, $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(&#39;/login_token=&#39;( . +) &#39;/&#39;, $ret, $tokens);
        $login_token = $tokens[1][0];
        //登陆并保存cookie
        $post_data = array();
        $post_data[&#39;username&#39;] = $this->username;
        $post_data[&#39;password&#39;] = $this->password;
        $post_data[&#39;token&#39;] = $login_token;
        $post_data[&#39;charset&#39;] = "UTF-8";
        $post_data[&#39;callback&#39;] = "parent.bd12Pass.api.login._postCallback";
        $post_data[&#39;index&#39;] = "0";
        $post_data[&#39;isPhone&#39;] = "false";
        $post_data[&#39;mem_pass&#39;] = "on";
        $post_data[&#39;loginType&#39;] = "1";
        $post_data[&#39;safeflg&#39;] = "0";
        $post_data[&#39;staticpage&#39;] = "https://passport.baidu.com/v2Jump.html";
        $post_data[&#39;tpl&#39;] = "mn";
        $post_data[&#39;u&#39;] = "http://www.baidu.com/";
        $post_data[&#39;verifycode&#39;] = "";
        $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 . &#39;/index.html&#39;);
        }
        $filename = self::COOKIE_DIR . &#39;/&#39; . md5($this->username . self::SECRET_KEY);
        file_put_contents($filename, $this->cookie);
    }
    public function baidu($username, $password) {
        $this->username = $username;
        $this->password = $password;
        $filename = self::COOKIE_DIR . &#39;/&#39; . md5($this->username . self::SECRET_KEY);
        if ((@filemtime($filename) + self::COOKIE_VALIDATE > time()) && ($cookie = file_get_contents($filename)) != &#39;&#39;) {
            //如果cookie在有效期内且不为空
            $this->cookie = $cookie;
        } else {
            $this->login();
        }
    }
    /** www.phprm.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 = &#39;&#39;, $post_data = &#39;&#39;) {
        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;

还可以用来作为贴吧的发帖或百度空间更新工具.

教程地址：

欢迎转载！但请带上文章地址^^