[PHP] 网盘搜索引擎-采集爬取百度网盘分享文件实现网盘搜索（二）

前情提要：最近使用PHP实现了简单的网盘搜索程序，并且关联了微信公众平台，名字是网盘小说。用户可以通过公众号输入关键字，公众号会返回相应的网盘下载地址。就是这么一个简单的功能，类似很多的网盘搜索类网站，我这个采集和搜索程序都是PHP实现的，全文和分词搜索部分使用到了开源软件xunsearch。

真实上线案例：搜盘子-网盘电影资源站

上一篇（[PHP] 网盘搜索引擎-采集爬取百度网盘分享文件实现网盘搜索）中我重点介绍了怎样去获取一大批的百度网盘用户，这一篇介绍怎样获得指定网盘用户的分享列表。同样的原理，也是找到百度获取分享列表的接口，然后去循环就可以了。

查找分享接口

随便找一个网盘用户的分享页面，点击最下面的分页链接，可以看到发起的请求接口，这个就是获取分享列表的接口。

整个的请求url是这个 https://pan.baidu.com/pcloud/feed/getsharelist?t=1493892795526&category=0&auth_type=1&request_location=share_home&start=60&limit=60&query_uk=4162539356&channel=chunlei&clienttype=0&web=1&logid=MTQ5Mzg5Mjc5NTUyNzAuOTEwNDc2NTU1NTgyMTM1OQ==&bdstoken=bc329b0677cad94231e973953a09b46f

调用接口获取数据

使用PHP的CURL去请求这个接口，看看是否能够获取到数据。测试后发现，返回的是{"errno":2,"request_id":1775381927}，并没有获取到数据。这是因为百度对header头信息里面的Referer进行了限制，我把Referer改成http://www.baidu.com，就可以获取到数据了。接口的参数也可以进行简化成 https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=60&limit=60&query_uk=4162539356

测试代码如下：

<?php
/*
* 获取分享列表
*/
class TextsSpider{
    /**
    * 发送请求
    */
    public function sendRequest($url,$data = null,$header=null){
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        if (!empty($data)){
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        }
        if (!empty($header)){
            curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
        }

        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        $output = curl_exec($curl);
        curl_close($curl);
        return $output;
    }
}
$textsSpider=new TextsSpider();
$header=array(
    'Referer:http://www.baidu.com'
);
$str=$textsSpider->sendRequest("https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=60&limit=60&query_uk=4162539356",null,$header);
echo $str;

分享列表的json结果如下：

{
    "errno": 0,
    "request_id": 1985680203,
    "total_count": 1025,
    "records": [
        {
            "feed_type": "share",
            "category": 6,
            "public": "1",
            "shareid": "98963537",
            "data_id": "1799945104803474515",
            "title": "《通灵少女》2017.同步台视（完结待删）",
            "third": 0,
            "clienttype": 0,
            "filecount": 1,
            "uk": 4162539356,
            "username": "a20****3762",
            "feed_time": 1493626027308,
            "desc": "",
            "avatar_url": "https://ss0.bdstatic.com/7Ls0a8Sm1A5BphGlnYG/sys/portrait/item/01f8831f.jpg",
            "dir_cnt": 1,
            "filelist": [
                {
                    "server_filename": "《通灵少女》2017.同步台视（完结待删）",
                    "category": 6,
                    "isdir": 1,
                    "size": 1024,
                    "fs_id": 98994643773159,
                    "path": "%2F%E3%80%8A%E9%80%9A%E7%81%B5%E5%B0%91%E5%A5%B3%E3%80%8B2017.%E5%90%8C%E6%AD%A5%E5%8F%B0%E8%A7%86%EF%BC%88%E5%AE%8C%E7%BB%93%E5%BE%85%E5%88%A0%EF%BC%89",
                    "md5": "0",
                    "sign": "86de8a14f72e6e3798d525c689c0e4575b1a7728",
                    "time_stamp": 1493895381
                }
            ],
            "source_uid": "528742401",
            "source_id": "98963537",
            "shorturl": "1pKPCF0J",
            "vCnt": 356,
            "dCnt": 29,
            "tCnt": 184
        },
        {
            "source_uid": "528742401",
            "source_id": "152434783",
            "shorturl": "1qYdhFkC",
            "vCnt": 1022,
            "dCnt": 29,
            "tCnt": 345
        }
    ]
}

还是和上次一样，综合性的搜索站，可以把有用的数据都留下存住，我只是做个最简单的，就只要了标题title和shareid

每个分享文件的下载页面url是这样的：http://pan.baidu.com/share/link?shareid={$shareId}&uk={$uk} ，只需要用户编号和分享id就可以拼出下载url。

生成分页接口URL

假设用户最多分享了30000个，每页60个，可以分500页，这样url可以这样生成

<?php
/*
* 获取分享列表
*/
class TextsSpider{
    private $pages=500;//分页数
    private $start=60;//每页个数
    /**
    * 生成分页接口的url
    */
    public function makeUrl($rootUk){
        $urls=array();
        for($i=0;$i<=$this->pages;$i++){
            $start=$this->start*$i;
            $url="https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start={$start}&limit={$this->start}&query_uk={$rootUk}";
            $urls[]=$url;
        }
        return $urls;
    }

}
$textsSpider=new TextsSpider();
$urls=$textsSpider->makeUrl(4162539356);
print_r($urls);

分页的url结果是这样的

Array
(
    [0] => https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=0&limit=60&query_uk=4162539356
    [1] => https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=60&limit=60&query_uk=4162539356
    [2] => https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=120&limit=60&query_uk=4162539356
    [3] => https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=180&limit=60&query_uk=4162539356
    [4] => https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=240&limit=60&query_uk=4162539356
    [5] => https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=300&limit=60&query_uk=4162539356
    [6] => https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=360&limit=60&query_uk=4162539356
    [7] => https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=420&limit=60&query_uk=4162539356
    [8] => https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=480&limit=60&query_uk=4162539356
    [9] => https://pan.baidu.com/pcloud/feed/getsharelist?&auth_type=1&request_location=share_home&start=540&limit=60&query_uk=4162539356

数据表存储结构

CREATE TABLE `texts` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `title` varchar(255) NOT NULL DEFAULT '',
  `url` varchar(255) NOT NULL DEFAULT '',
  `time` int(10) unsigned NOT NULL DEFAULT '0',
  PRIMARY KEY (`id`),
  KEY `title` (`title`(250))
) ENGINE=MyISAM

 循环读取的时候，应该注意，每次间隔一定的时间，防止被封。

下一篇主要介绍xunsearch分词和全文搜索和这次的完整代码

演示地址，关注微信公众号：网盘小说，或者扫描下面的二维码

上一篇循环获取uk并存入数据库的完整代码如下：

<?php
/*
* 获取订阅者
*/
class UkSpider{
    private $pages;//分页数
    private $start=24;//每页个数
    private $db=null;//数据库
    public function __construct($pages=100){
        $this->pages=$pages;
        $this->db = new PDO("mysql:host=localhost;dbname=pan","root","root");
        $this->db->query('set names utf8');
    }
    /**
    * 生成分页接口的url
    */
    public function makeUrl($rootUk){
        $urls=array();
        for($i=0;$i<=$this->pages;$i++){
            $start=$this->start*$i;
            $url="https://pan.baidu.com/pcloud/friend/getfollowlist?query_uk={$rootUk}&limit={$this->start}&start={$start}";
            $urls[]=$url;
        }
        return $urls;
    }
    /**
    * 根据URL获取订阅用户id
    */
    public function getFollowsByUrl($url){
        $result=$this->sendRequest($url);
        $arr=json_decode($result,true);
        if(empty($arr)||!isset($arr['follow_list'])){
            return;
        }
        $ret=array();
        foreach($arr['follow_list'] as $fan){
            $ret[]=$fan['follow_uk'];
        }
        
        return $ret;
    }
    /**
    * 发送请求
    */
    public function sendRequest($url,$data = null,$header=null){
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        if (!empty($data)){
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        }
        if (!empty($header)){
            curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
        }

        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        $output = curl_exec($curl);
        curl_close($curl);
        return $output;
    }
    /*
    获取到的uks存入数据
    */
    public function addUks($uks){
        foreach($uks as $uk){
            $sql="insert into uks (uk)values({$uk})";
            $this->db->prepare($sql)->execute();
        }

    }
    /*
    获取某个用户的所有订阅并入库
    */
    public function sleepGetByUk($uk){
        $urls=$this->makeUrl($uk);
        //$this->updateUkFollow($uk);
        //循环分页url
        foreach($urls as $url){
            echo "loading:".$url."
";
            //随机睡眠7到11秒
            $second=rand(7,11);
            echo "sleep...{$second}s
";
            sleep($second);
            //发起请求
            $followList=$this->getFollowsByUrl($url);
            //如果已经没有数据了，要停掉请求
            if(empty($followList)){
                break;
            }
            $this->addUks($followList);
        }
    }
    /*从数据库取get_follow=0的uk*/
    public function getUksFromDb(){
        $sth = $this->db->prepare("select * from uks where get_follow=0");
        $sth->execute();
        $uks = $sth->fetchAll(PDO::FETCH_ASSOC);
        $result=array();
        foreach ($uks as $key => $uk) {
            $result[]=$uk['uk'];
        }
        return $result;
    }
    /*已经取过follow的置为1*/
    public function updateUkFollow($uk){
        $sql="UPDATE uks SET get_follow=1 where uk={$uk}";
        $this->db->prepare($sql)->execute();
    }
}

$ukSpider=new UkSpider();
$uks=$ukSpider->getUksFromDb();
foreach($uks as $uk){
    $ukSpider->sleepGetByUk($uk);
}