最近百度雲盤不知道為啥不提供資源檢索，正好最近看了一下python，正好來練練手，寫歌爬蟲爬一下百度雲盤的資源。

分析了一下百度雲盤的網友原始碼和js檔案，裡面有大量ajax的東西，利用json傳輸資料，前端顯示。話說，這樣資料爬去就方便多了，也不要用scrapy啥的，直接解析json資料就好。

分析js檔案提煉了下面三個連結：

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
 
}'

整個資料爬取流程起到很重要的作用。

爬蟲分三步，一個是urlids 儲存要爬取的網址，一個是user存放使用者uk，另一個是share存放user分享的資料，包含任何你想要的資料。

下面提供三個核心函式程式碼：

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