python爬虫爬百度云盘的资源

野性酷女 2022-07-14 09:46 193阅读 0赞

最近百度云盘不知道为啥不提供资源检索，正好最近看了一下python，正好来练练手，写歌爬虫爬一下百度云盘的资源。

分析了一下百度云盘的网友源码和js文件，里面有大量ajax的东西，利用json传输数据，前端显示。话说，这样数据爬去就方便多了，也不要用scrapy啥的，直接解析json数据就好。

分析js文件提炼了下面三个链接：

URL_SHARE = 'http://yun.baidu.com/pcloud/feed/getsharelist?auth_type=1&start={
       start}&limit=20&query_uk={uk}&urlid={
       id}' URL_FOLLOW = 'http://yun.baidu.com/pcloud/friend/getfollowlist?query_uk={uk}&limit=20&start={
       start}&urlid={
       id}' #http://yun.baidu.com/pcloud/friend/getfanslist?query_uk=1327787586&limit=25&start=0 URL_FANS = 'http://yun.baidu.com/pcloud/friend/getfanslist?query_uk={uk}&limit=20&start={
       start}&urlid={
       id}'

整个数据爬取流程起到很重要的作用。

爬虫分三步，一个是urlids 保存要爬取的网址，一个是user存放用户uk，另一个是share存放user分享的数据，包含任何你想要的数据。

下面提供三个核心函数代码：

def response_worker():
    	global news,totals
    	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')
    	while True:
    		print "function response_worker",hc_r.qsize()
    		# if hc_r.qsize()==0:
    		# print "continue"
    		# continue
    		metadata, effective_url = hc_r.get()
    		print "response_worker:", effective_url
    		try:
    			tnow = datetime.datetime.utcnow()
    			date = (tnow + datetime.timedelta(hours=8))
    			date = datetime.datetime(date.year, date.month, date.day)
    			if news>=100:
    				try:
    					dbcurr.execute('INSERT INTO spider_statusreport(date,new_hashes,total_requests) VALUES(%s,%s,%s) ON DUPLICATE KEY UPDATE ' +'total_requests=total_requests+%s,new_hashes=new_hashes+%s',
    						(date, news,totals,totals,news))
    				except Exception as ex:
    					print "E10", str(ex)
    				news=0
    			id = re_urlid.findall(effective_url)[0]
    			start = re_start.findall(effective_url)[0]
    			if True:
    				if 'getfollowlist' in effective_url: #type = 1
    					follows = json.loads(metadata)
    					print "-------------------------------------follows-------------------------------\n"
    					uid = re_uid.findall(effective_url)[0]
    					if "total_count" in follows.keys() and follows["total_count"]>0 and str(start) == "0":
    						for i in range((follows["total_count"]-1)/ONEPAGE):
    							try:
    								dbcurr.execute('INSERT INTO urlids(uk, start, limited, type, status) VALUES(%s, %s, %s, 1, 0)' % (uid, str(ONEPAGE*(i+1)), str(ONEPAGE)))
    							except Exception as ex:
    								print "E1", str(ex)
    								pass
    					if "follow_list" in follows.keys():
    						for item in follows["follow_list"]:
    				if item['pubshare_count']==0:
    					print "---------------------count ==0-------------------------------------------\n"
    					#continue
    							y = dbcurr.execute('SELECT id FROM user WHERE userid=%s', (item['follow_uk'],))
    							y = dbcurr.fetchone()
    							print "user uk",item['follow_uk']
    							if not y:
    								try:
    									dbcurr.execute('INSERT INTO user(userid, username, files, status, downloaded, lastaccess,avatar_url,fans_count,follow_count,album_count) VALUES(%s, "%s", %s, 0, 0, "%s","%s",%s,%s,%s)' % (item['follow_uk'], item['follow_uname'],item['pubshare_count'],tnow,item['avatar_url'],item['fans_count'],item['follow_count'],item['album_count']))
    								except Exception as ex:
    									print "E13", str(ex)
    									pass
    							else:
    								print "-----------------userid exists---------------------------------\n"
    					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
    					fans = json.loads(metadata)
    					print "----------------------------------------fans----------------------------------\n"
    					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"]:
    							if item['pubshare_count']==0:
    				print "---------------------count ==0-------------------------------------------\n"
    								#continue
    							y = dbcurr.execute('SELECT id FROM user WHERE userid=%s', (item['fans_uk'],))
    							y = dbcurr.fetchone()
    							print "user uk",item['fans_uk']
    							if not y:
    								try:
    									dbcurr.execute('INSERT INTO user(userid, username, files, status, downloaded, lastaccess,avatar_url,fans_count,follow_count,album_count) VALUES(%s, "%s", %s, 0, 0, "%s","%s",%s,%s,%s)' % (item['fans_uk'], item['fans_uname'],item['pubshare_count'],tnow,item['avatar_url'],item['fans_count'],item['follow_count'],item['album_count']))
    								except Exception as ex:
    									print "E23", str(ex)
    									pass
    							else:
    								print "-----------------userid exists---------------------------------\n"
    					else:
    						print "delete 2", uid, start
    						dbcurr.execute('delete from urlids where uk=%s and type=2 and start>%s' % (uid, start))
    				else:
    					shares = json.loads(metadata)
    					print "shares"
    					uid = re_uid.findall(effective_url)[0]
    					totals+=1
    					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"]:
    							print "-------------------------------------filename------------------ ",item['title']
    							print "---------------------------------------------------------------\n"
    							try:
    								stamp_t=int(item["feed_time"])/1000
    								t= time.localtime(int(stamp_t))
    								share_time=time.strftime("%Y-%m-%d %H:%M:%S",t)
    								urls=""
    								if "shorturl" in item.keys():
    									urls=item['shorturl']
    								news+=1
    								length=""
    								if "filelist" in item.keys():
    									length=str(item['filelist'][0]['size'])
    								dbcurr.execute('INSERT INTO share(fid,userid, filename, shareid, status,filetype,share_time,create_time,urls,down,length) VALUES("%s",%s, "%s", %s, 0,"%s","%s","%s","%s",0,"%s")' % (sid(int(item['shareid'])),uid, item['title'], item['shareid'],get_category(get_ext(item['title'])),share_time,tnow,urls,length))
    								# time.sleep(10)
    							except Exception as ex:
    								print "\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>E33\n", str(ex)
    								print "item ---------------------------------------------\n"
    								# time.sleep(10)
    								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
    		pid = re_pptt.findall(effective_url)
    		if pid:
    			print "pid>>>", pid
    			ppid = int(pid[0])
    			PROXY_LIST[ppid][6] -= 1
    	dbcurr.close()
    	dbconn.close()
    
    def worker(k):
    	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')
    	while True:
    		#dbcurr.execute('select * from urlids where status=0 order by type limit 1')
    		dbcurr.execute('select * from urlids where status=0 limit %s,1'%(str(k),))
    		d = dbcurr.fetchall()
    		#print d
    		if d:
    			id = d[0][0]
    			uk = d[0][1]
    			start = d[0][2]
    			limit = d[0][3]
    			type = d[0][4]
    			dbcurr.execute('update urlids set status=1 where id=%s' % (str(id),))
    			url = ""
    			if type == 0:
    				url = URL_SHARE.format(uk=uk, start=start, id=id).encode('utf-8')
    			elif  type == 1:
    				url = URL_FOLLOW.format(uk=uk, start=start, id=id).encode('utf-8')
    			elif type == 2:
    				url = URL_FANS.format(uk=uk, start=start, id=id).encode('utf-8')
    			if url:
    				hc_q.put((type, url))
    		if len(d)==0:
    			print "\ndata user uk\n "
    			dbcurr.execute('select * from user where status=0 limit %s,100'%(str(k*100),))
    			print "user "
    			d = dbcurr.fetchall()
    			#print "uk",d
    			if d:
    				for item in d:
    					try:
    						print "update user",item[1]
    						dbcurr.execute('insert into urlids(uk, start, limited, type, status) values("%s", 0, %s, 0, 0)' % (item[1], str(ONESHAREPAGE)))
    						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 and id=%s' % (item[1],item[6]))
    					except Exception as ex:
    						print "E6", str(ex)
    			else:
    				time.sleep(1)
    		dbconn.commit()
    	dbcurr.close()
    	dbconn.close()
    
    def req_worker(inx):
    	s = requests.Session()
    	while True:
    		time.sleep(1)
    		req_item = hc_q.get()
    		req_type = req_item[0]
    		url = req_item[1]
    		try:
    			r = s.get(url)
    			hc_r.put((r.text, url))
    		except:
    			pass
    for item in range(3):	
    	t = threading.Thread(target = req_worker, args = (item,))
    	t.setDaemon(True)
    	t.start()
    for item in range(2):	 
    	s = threading.Thread(target = worker, args = (item,))
    	s.setDaemon(True)
    	s.start()
    for item in range(2):	
    	t = threading.Thread(target = response_worker, args = ())
    	t.setDaemon(True)
    	t.start()
    while 1:
    	pass