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：
#演示站http://wwww.yunsou.me
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()
#演示站http://wwww.yunsou.me
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()
#演示站http://wwww.yunsou.me
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:
passok，完工，想看的可以来看下百度云搜
