python 爬虫：百度网盘爬虫（资源校验问题求大神交流）

因为要做去转盘网（分类模式点我），所以一定要爬取网盘资源，本来想自己写一个爬虫挺不容易的，不想分享出来，但最后还是决定了拿给大家一起看吧，毕竟有交流才有进步，有兴趣的朋友也可以看看我写的其他日志或者关注我，会发现去转盘网的大部分技术现在可以说是公开状态，如有对你有帮助还是认真读读吧，下面是爬虫代码，我立马公开：

ps ：不会 python 的孩子先去学学 python ，代码是 python 写的

我附上点资料：点我下载 1 点我下载 2

磁力站的源码我也公开了，放到了下面，喜欢的看看：ok 搜搜

TEL ：继本篇之后，以下是其他所有重要的博客，喜欢的可以看看：

中文分词算法 邀请好友注册 js 分页部分代码 数据库备份 ok 搜搜爬虫源代码

#coding: utf8
 
"""
 
author:haoning
 
create time: 2015-8-15
 
"""
 
  
 
import re #正则表达式模块
 
import urllib2 #获取 URLs 的组件
 
import time
 
from Queue import Queue
 
import threading, errno, datetime
 
import json
 
import requests #Requests is an Apache2 Licensed HTTP library
 
import MySQLdb as mdb
 
  
 
DB_HOST = '127.0.0.1'
 
DB_USER = 'root'
 
DB_PASS = ''
 
  
 
  
 
#以下是正则匹配规则
 
re_start = re.compile(r'start=(\d+)') #\d 表示 0-9 任意一个数字 后面有+号 说明这个 0-9 单个数位出现一到多次 比如 21312314
 
re_uid = re.compile(r'query_uk=(\d+)') #查询编号
 
re_urlid = re.compile(r'&urlid=(\d+)') #url 编号
 
  
 
ONEPAGE = 20 #一页数据量
 
ONESHAREPAGE = 20 #一页分享连接量
 
  
 
#缺少专辑列表
 
URL_SHARE = 'http://yun.baidu.com/pcloud/feed/getsharelist?auth_type=1&start={start}&limit=20&query_uk={uk}&urlid={id}' #获得分享列表
 
"""
 
{"feed_type":"share","category":6,"public":"1","shareid":"1541924625","data_id":"2418757107690953697","title":"\u5723\u8bde\u58c1\u7eb8\u5927\u6d3e\u9001","third":0,"clienttype":0,"filecount":1,"uk":1798788396,"username":"SONYcity03","feed_time":1418986714000,"desc":"","avatar_url":"http:\/\/himg.bdimg.com\/sys\/portrait\/item\/1b6bf333.jpg","dir_cnt":1,"filelist":[{"server_filename":"\u5723\u8bde\u58c1\u7eb8\u5927\u6d3e\u9001","category":6,"isdir":1,"size":1024,"fs_id":870907642649299,"path":"%2F%E5%9C%A3%E8%AF%9E%E5%A3%81%E7%BA%B8%E5%A4%A7%E6%B4%BE%E9%80%81","md5":"0","sign":"1221d7d56438970225926ad552423ff6a5d3dd33","time_stamp":1439542024}],"source_uid":"871590683","source_id":"1541924625","shorturl":"1dDndV6T","vCnt":34296,"dCnt":7527,"tCnt":5056,"like_status":0,"like_count":60,"comment_count":19},
 
public:公开分享
 
title:文件名称
 
uk:用户编号
 
"""
 
URL_FOLLOW = 'http://yun.baidu.com/pcloud/friend/getfollowlist?query_uk={uk}&limit=20&start={start}&urlid={id}' #获得订阅列表
 
"""
 
{"type":-1,"follow_uname":"\u597d\u55e8\u597d\u55e8\u554a","avatar_url":"http:\/\/himg.bdimg.com\/sys\/portrait\/item\/979b832f.jpg","intro":"\u9700\u8981\u597d\u8d44\u6599\u52a0994798392","user_type":0,"is_vip":0,"follow_count":2,"fans_count":2276,"follow_time":1415614418,"pubshare_count":36,"follow_uk":2603342172,"album_count":0},
 
follow_uname:订阅名称
 
fans_count ：粉丝数
 
"""
 
URL_FANS = 'http://yun.baidu.com/pcloud/friend/getfanslist?query_uk={uk}&limit=20&start={start}&urlid={id}' # 获取关注列表
 
"""
 
{"type":-1,"fans_uname":"\u62e8\u52a8\u795e\u7684\u5fc3\u7eea","avatar_url":"http:\/\/himg.bdimg.com\/sys\/portrait\/item\/d5119a2b.jpg","intro":"","user_type":0,"is_vip":0,"follow_count":8,"fans_count":39,"follow_time":1439541512,"pubshare_count":15,"fans_uk":288332613,"album_count":0}
 
avatar_url ：头像
 
fans_uname ：用户名
 
"""
 
  
 
QNUM = 1000
 
hc_q = Queue(20) #请求队列
 
hc_r = Queue(QNUM) #接收队列
 
success = 0
 
failed = 0
 
  
 
def req_worker(inx): #请求
 
    s = requests.Session() #请求对象
 
    while True:
 
        req_item = hc_q.get() #获得请求项
 
         
 
        req_type = req_item[0] #请求类型，分享?订阅？粉丝？
 
        url = req_item[1] #url
 
        r = s.get(url) #通过 url 获得数据
 
        hc_r.put((r.text, url)) #将获得数据文本和 url 放入接收队列
 
        print "req_worker#", inx, url #inx 线程编号； url 分析了的 url
 
         
 
def response_worker(): #处理工作
 
    dbconn = mdb.connect(DB_HOST, DB_USER, DB_PASS, 'baiduyun', charset='utf8')
 
    dbcurr = dbconn.cursor()
 
    dbcurr.execute('SET NAMES utf8')
 
    dbcurr.execute('set global wait_timeout=60000') #以上皆是数据库操作
 
    while True:
 
        """
 
        #正则备注
 
        match() 决定 RE 是否在字符串刚开始的位置匹配
 
        search() 扫描字符串，找到这个 RE 匹配的位置
 
        findall() 找到 RE 匹配的所有子串，并把它们作为一个列表返回
 
        finditer() 找到 RE 匹配的所有子串，并把它们作为一个迭代器返回
 
                  百度页面链接： http://pan.baidu.com/share/link?shareid=3685432306&uk=1798788396&from=hotrec
 
        uk 其实用户 id 值
 
        """
 
        metadata, effective_url = hc_r.get() #获得 metadata （也就是前面的 r.text ）和有效的 url
 
        #print "response_worker:", effective_url
 
        try:
 
            tnow = int(time.time()) #获得当前时间
 
            id = re_urlid.findall(effective_url)[0] #获得 re_urlid 用户编号
 
            start = re_start.findall(effective_url)[0] #获得 start 用户编号
 
            if True:
 
                if 'getfollowlist' in effective_url: #type = 1 ，也就是订阅类
 
                    follows = json.loads(metadata) #以将文本数据转化成 json 数据格式返回
 
                    uid = re_uid.findall(effective_url)[0] #获得 re_uid ，查询编号
 
                    if "total_count" in follows.keys() and follows["total_count"]>0 and str(start) == "0": #获得订阅数量
 
                        for i in range((follows["total_count"]-1)/ONEPAGE): #开始一页一页获取有用信息
 
                            try:
 
                                dbcurr.execute('INSERT INTO urlids(uk, start, limited, type, status) VALUES(%s, %s, %s, 1, 0)' % (uid, str(ONEPAGE*(i+1)), str(ONEPAGE)))
 
                                #存储 url 编号，订阅中有用户编号， start 表示从多少条数据开始获取，初始 status=0 为未分析状态
 
                            except Exception as ex:
 
                                print "E1", str(ex)
 
                                pass
 
                     
 
                    if "follow_list" in follows.keys(): #如果订阅者也订阅了，即拥有 follow_list
 
                        for item in follows["follow_list"]:
 
                            try:
 
                                dbcurr.execute('INSERT INTO user(userid, username, files, status, downloaded, lastaccess) VALUES(%s, "%s", 0, 0, 0, %s)' % (item['follow_uk'], item['follow_uname'], str(tnow)))
 
                                #存储订阅这的用户编号，用户名，入库时间
 
                            except Exception as ex:
 
                                print "E13", str(ex)
 
                                pass
 
                    else:
 
                        print "delete 1", uid, start
 
                        dbcurr.execute('delete from urlids where uk=%s and type=1 and start>%s' % (uid, start))
 
                elif 'getfanslist' in effective_url: #type = 2,也就是粉丝列表
 
                    fans = json.loads(metadata)
 
                    uid = re_uid.findall(effective_url)[0]
 
                    if "total_count" in fans.keys() and fans["total_count"]>0 and str(start) == "0":
 
                        for i in range((fans["total_count"]-1)/ONEPAGE):
 
                            try:
 
                                dbcurr.execute('INSERT INTO urlids(uk, start, limited, type, status) VALUES(%s, %s, %s, 2, 0)' % (uid, str(ONEPAGE*(i+1)), str(ONEPAGE)))
 
                            except Exception as ex:
 
                                print "E2", str(ex)
 
                                pass
 
                     
 
                    if "fans_list" in fans.keys():
 
                        for item in fans["fans_list"]:
 
                            try:
 
                                dbcurr.execute('INSERT INTO user(userid, username, files, status, downloaded, lastaccess) VALUES(%s, "%s", 0, 0, 0, %s)' % (item['fans_uk'], item['fans_uname'], str(tnow)))
 
                            except Exception as ex:
 
                                print "E23", str(ex)
 
                                pass
 
                    else:
 
                        print "delete 2", uid, start
 
                        dbcurr.execute('delete from urlids where uk=%s and type=2 and start>%s' % (uid, start))
 
                else: #type=0 ，也即是分享列表
 
                    shares = json.loads(metadata)
 
                    uid = re_uid.findall(effective_url)[0]
 
                    if "total_count" in shares.keys() and shares["total_count"]>0 and str(start) == "0":
 
                        for i in range((shares["total_count"]-1)/ONESHAREPAGE):
 
                            try:
 
                                dbcurr.execute('INSERT INTO urlids(uk, start, limited, type, status) VALUES(%s, %s, %s, 0, 0)' % (uid, str(ONESHAREPAGE*(i+1)), str(ONESHAREPAGE)))
 
                            except Exception as ex:
 
                                print "E3", str(ex)
 
                                pass
 
                    if "records" in shares.keys():
 
                        for item in shares["records"]:
 
                            try:
 
                                dbcurr.execute('INSERT INTO share(userid, filename, shareid, status) VALUES(%s, "%s", %s, 0)' % (uid, item['title'], item['shareid'])) #item['title']恰好是文件名称
 
                                #返回的 json 信息：
 
                            except Exception as ex:
 
                                #print "E33", str(ex), item
 
                                pass
 
                    else:
 
                        print "delete 0", uid, start
 
                        dbcurr.execute('delete from urlids where uk=%s and type=0 and start>%s' % (uid, str(start)))
 
                dbcurr.execute('delete from urlids where id=%s' % (id, ))
 
                dbconn.commit()
 
        except Exception as ex:
 
            print "E5", str(ex), id
 
    dbcurr.close()
 
    dbconn.close() #关闭数据库
 
     
 
def worker():
 
    global success, failed
 
    dbconn = mdb.connect(DB_HOST, DB_USER, DB_PASS, 'baiduyun', charset='utf8')
 
    dbcurr = dbconn.cursor()
 
    dbcurr.execute('SET NAMES utf8')
 
    dbcurr.execute('set global wait_timeout=60000')
 
    #以上是数据库相关设置
 
    while True:
 
  
 
        #dbcurr.execute('select * from urlids where status=0 order by type limit 1')
 
        dbcurr.execute('select * from urlids where status=0 and type>0 limit 1') #type>0,为非分享列表
 
        d = dbcurr.fetchall()
 
        #每次取出一条数据出来
 
        #print d
 
        if d: #如果数据存在
 
            id = d[0][0] #请求 url 编号
 
            uk = d[0][1] #用户编号
 
            start = d[0][2]
 
            limit = d[0][3]
 
            type = d[0][4] #哪种类型
 
            dbcurr.execute('update urlids set status=1 where id=%s' % (str(id),)) #状态更新为 1 ，已经访问过了
 
            url = ""
 
            if type == 0: #分享
 
                url = URL_SHARE.format(uk=uk, start=start, id=id).encode('utf-8') #分享列表格式化
 
                #query_uk uk 查询编号
 
                #start
 
                #urlid id url 编号
 
            elif  type == 1: #订阅
 
                url = URL_FOLLOW.format(uk=uk, start=start, id=id).encode('utf-8') #订阅列表格式化
 
            elif type == 2: #粉丝
 
                url = URL_FANS.format(uk=uk, start=start, id=id).encode('utf-8') #关注列表格式化
 
            if url:
 
                hc_q.put((type, url)) #如果 url 存在，则放入请求队列， type 表示从哪里获得数据
 
                #通过以上的 url 就可以获得相应情况下的数据的 json 数据格式，如分享信息的，订阅信息的，粉丝信息的
 
                 
 
            #print "processed", url
 
        else: #否则从订阅者或者粉丝的引出人中获得信息来存储，这个过程是爬虫树的下一层扩展
 
            dbcurr.execute('select * from user where status=0 limit 1000')
 
            d = dbcurr.fetchall()
 
            if d:
 
                for item in d:
 
                    try:
 
                        dbcurr.execute('insert into urlids(uk, start, limited, type, status) values("%s", 0, %s, 0, 0)' % (item[1], str(ONESHAREPAGE)))
 
                        #uk 查询号，其实是用户编号
 
                        #start 从第 1 条数据出发获取信息
 
                        #
 
                        dbcurr.execute('insert into urlids(uk, start, limited, type, status) values("%s", 0, %s, 1, 0)' % (item[1], str(ONEPAGE)))
 
                        dbcurr.execute('insert into urlids(uk, start, limited, type, status) values("%s", 0, %s, 2, 0)' % (item[1], str(ONEPAGE)))
 
                        dbcurr.execute('update user set status=1 where userid=%s' % (item[1],)) #做个标志，该条数据已经访问过了
 
                        #跟新了分享，订阅，粉丝三部分数据
 
                    except Exception as ex:
 
                        print "E6", str(ex)
 
            else:
 
                time.sleep(1)
 
                 
 
        dbconn.commit()
 
    dbcurr.close()
 
    dbconn.close()
 
         
 
def main():
 
    print 'starting at:',now()
 
    for item in range(16):   
 
        t = threading.Thread(target = req_worker, args = (item,))
 
        t.setDaemon(True)
 
        t.start() #请求线程开启，共开启 16 个线程
 
    s = threading.Thread(target = worker, args = ())
 
    s.setDaemon(True)
 
    s.start() #worker 线程开启
 
    response_worker()  #response_worker 开始工作
 
    print 'all Done at:', now()   

特别求问：

本人现在发现个问题，百度云的链接失效问题很难解决，比如：

https://pan.baidu.com/share/link?uk=186824885&shareid=1531849562

当向百度发送 http 请求的时候，开始是好的，但随着 http 请求的频率过快，百度开始限制 ip ，也就是资源校验开始失效，这个问题很让然头疼，希望 V2EX 上的大神能够给出宝贵建议或者可行见解，十分感谢。

本人建个 qq 群，欢迎大家一起交流技术， 群号： 512245829 喜欢微博的朋友关注：转盘娱乐即可