forked from JackonYang/renren
/
browser.py
198 lines (183 loc) · 6.76 KB
/
browser.py
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"""provide interface to download record in a certain pageStyle of someone from www.renren.com"""
import urllib.request
from urllib.parse import urlencode
import http.cookiejar
import socket
import re
import time
import parse
run_level='info'
timeout=3
max_timeout=5
resend_n=3
urls={
'login': "http://www.renren.com/PLogin.do",
'friendList': "http://friend.renren.com/GetFriendList.do?curpage={}&id={}",
'profile_detail': "http://www.renren.com/{}/profile?v=info_ajax",
#'homepage': "http://www.renren.com/{}/profile",
'status': 'http://status.renren.com/status?curpage={}&id={}&__view=async-html'
}
itemReg={
'status': re.compile(r'<li data-wiki = "" id="status-\d+">.*?</li>', re.DOTALL),
'friendList': re.compile(r'<dd><a\s+href="http://www.renren.com/profile.do\?id=\d+">[^<]*</a>'),
'profile_detail': re.compile(r'<dt>[^<]*?</dt>[^<]*?<dd>.*?</dd>', re.DOTALL),
'profile_mini': re.compile(r'<ul class="(?:information-ul)?(?:user-info clearfix)?".*?</ul>', re.DOTALL),
# 'profile_tl':re.compile(r'<ul class="information-ul".*?</ul>', re.DOTALL),
# 'profile_basic':re.compile(r'<ul class="user-info clearfix">.*?</ul>', re.DOTALL)}
# 'safety': re.compile(r'<title>.*?安全.*?</title>')
}
def format_time(runtime, req_time=None):
if req_time is None:
return '%.2f'%(runtime)
elif isinstance(req_time, list):
import numpy as np
tm=np.float32(req_time)
return '%.2f, max/min/ave: %.2f/%.2f/%.2f'%(runtime, tm.max(), tm.min(), tm.mean())
else:
return 'timecost format error'
_url2fileprog=None
def url2file(url):
global _url2fileprog
if _url2fileprog is None:
import re
_url2fileprog=re.compile(r'http://(\w+).renren.com/(?:\D+)?(\d+)\D+(\d+)?')
m=_url2fileprog.search(url)
if m is None:
return 'test_data/timeout.html'
else:
if m.group(3) is None:
return 'test_data/{}_{}_profile.html'.format(m.group(1), m.group(2))
else:
return 'test_data/{}_{}_{}.html'.format(m.group(1), m.group(3), m.group(2))
class browser:
def __init__(self, user='yyttrr3242342@163.com', passwd=None):
self.user=user
self.passwd=passwd
def friendList(self, renrenId='285060168', uppage=100):
"""friendList(renrenId:str) --> (record:dict(), timecost:str),
return (None, error_info) if error"""
return self.process('friendList', renrenId, uppage)
def status(self, renrenId='285060168', uppage=100):
"""status('285060168') --> (record:dict(), timecost:str),
return (None, error_info) if error"""
return self.process('status', renrenId, uppage)
def profile(self, renrenId, no_use=None):
"""profile('234234') --> (record:dict(), timecost:str)
return (None, error_info) if error"""
runtime_start=time.time()
pageStyle='profile_detail'
html_content=self._download(urls[pageStyle].format(renrenId))
if html_content is None:
return None, 'timout'
elif html_content[0:30].find('<div class="col-left">') > -1:
pf=parse.profile_detail(itemReg[pageStyle].findall(html_content))
else:
#TODO:check whether account safety
pageStyle='profile_mini'
pf=parse.profile_mini(itemReg[pageStyle].findall(html_content))
runtime=time.time()-runtime_start
return pf, format_time(runtime)
def login(self, user=None, passwd=None):
"""return (renrenId, 'success') if login successfully.
return (None, info) if failed."""
if user is None:
user=self.user
passwd=self.passwd
if passwd is None:
try:
import mytools # used to get passwd from personal mysql
passwd=mytools.getPasswd('renren', user)
except ImportError:
return None, 'user/passwd format error'
data=urlencode({"email": user, "password": passwd}).encode(encoding='UTF8')
hdlr_cookie=urllib.request.HTTPCookieProcessor(http.cookiejar.CookieJar())
self.opener=urllib.request.build_opener(hdlr_cookie)
self.opener.addheaders=[('User-agent', 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:16.0) Gecko/20100101 Firefox/16.0')]
try:
rsp=self.opener.open(urls['login'], data, timeout=timeout)
url=rsp.geturl()
except socket.timeout as e:
return None, 'timeout'
except urllib.error.URLError as e:
return None, 'timeout'
else:
# check whether login is successful.
m=re.compile(r'http://www.renren.com/(\d+)').match(url)
if m is None:
return None, 'login failed, rsp={}'.format(url)
else:
return m.group(1), 'login success'
def process(self, pageStyle, renrenId='285060168', uppage=100):
"""return (record:items, timecost:str) if success,
return (error, error_info) if error"""
runtime_start=time.time()
req_time=[]
items, info=self._iter_page(pageStyle, renrenId, req_time, range(uppage))
if items is None:
return None, info
meth_parse=getattr(parse, pageStyle)
record=meth_parse(items)
runtime=time.time()-runtime_start
return record, format_time(runtime, req_time)
def _download(self, url, request_time=None):
"""onePage(url) --> html_content:str
return None if timeout."""
request_start=time.time()
try:
rsp=self.opener.open(url, timeout=timeout)
html_content=rsp.read().decode('UTF-8', 'ignore')
if request_time is not None:
request_time.append(time.time()-request_start)
if run_level == 'debug':
with open(url2file(url), 'w') as f:
f.write(html_content)
print('debug.saved:{}'.format(url))
except socket.timeout as e:
return None
except urllib.error.URLError as e:
return None
else:
return html_content
def _iter_page(self, pageStyle, rid, req_time=None, pages=range(100), resend=None):
"""_iter_page(pageStyle, rid) --> (items:set(), 'success')
return (None, error_info) if error"""
if resend is None:
resend=resend_n
elif resend<0:
return None, 'timeout'
itemsAll=set()
timeout_seq=list()
# request next page until no more items detected
for curpage in pages:
html_content=self._download(urls[pageStyle].format(curpage, rid), req_time)
if html_content is None: # add to timeout_seq and resend later.
timeout_seq.append(curpage)
# break when much more timeout than normal
if len(timeout_seq) > max_timeout:
return None, 'more timeout than max_timeout'
else:
items_curpage=itemReg[pageStyle].findall(html_content) # detect items
if len(items_curpage) > 0:
itemsAll.update(items_curpage)
else: # privacy, all pages requested, or safety page
break
# deal with timeout_seq
if timeout_seq: # resend
item_re, info = self._iter_page(pageStyle, rid, req_time, timeout_seq, resend-1)
if item_re is None:
return None, info
else:
itemsAll.update(item_re)
#_safety page check, if itemsAll empty.
#if (len(itemsAll) ==0) and self._is_safety_page(html_content):
# return None, 'account forbidden by safety policy'
return itemsAll, 'success'
#def _is_safety_page(self, html_content):
# if html_content is None:
# return False
# pageStyle='safety'
# m=itemReg[pageStyle].search(html_content)
# if m is None:
# return False
# else:
# return True