def crawl_person_infos(uid):
"""
Crawl user info and their fans and followers
For the limit of weibo's backend, we can only crawl 5 pages of the fans and followers.
We also have no permissions to view enterprise's followers and fans info
:param uid: current user id
:return: None
"""
if not uid:
return
url = home_url.format(uid)
html = get_page(url)
if is_404(html):
return None
domain = public.get_userdomain(html)
user, is_crawled = user_get.get_profile(uid, domain)
# If it's enterprise user, just skip it
if user and user.verify_type == 2:
set_seed_other_crawled(uid)
return
# Crawl fans and followers
if not is_crawled:
app.send_task('tasks.user.crawl_follower_fans',
args=(uid, domain),
queue='fans_followers',
routing_key='for_fans_followers')
def excute_login_task():
infos = login_info.get_login_info()
log.crawler.info('本轮模拟登陆开始')
for info in infos:
app.send_task('tasks.login.login_task',
args=(info.name, info.password))
time.sleep(10)
def crawl_weibo_datas(uid):
limit = get_max_home_page()
cur_page = 1
while cur_page <= limit:
url = home_url.format(uid, cur_page)
html = get_page(url)
weibo_datas = get_wbdata_fromweb(html)
if not weibo_datas:
crawler.warning('用户id为{}的用户主页微博数据未采集成功，请检查原因'.format(uid))
return
insert_weibo_datas(weibo_datas)
domain = public.get_userdomain(html)
ajax_url_0 = ajax_url.format(domain, 0, domain, uid, cur_page, cur_page)
ajax_url_1 = ajax_url.format(domain, 1, domain, uid, cur_page, cur_page)
if cur_page == 1:
total_page = get_total_page(crawl_ajax_page(ajax_url_1))
if total_page < limit:
limit = total_page
cur_page += 1
app.send_task('tasks.home.crawl_ajax_page', args=(ajax_url_0,), queue='ajax_home_crawler',
routing_key='ajax_home_info')
app.send_task('tasks.home.crawl_ajax_page', args=(ajax_url_1,), queue='ajax_home_crawler',
routing_key='ajax_home_info')
def excute_home_task():
# you can have many strategies to crawl user's home page, here we choose table seed_ids's uid
# whose home_crawl is 0
id_objs = get_home_ids()
for id_obj in id_objs:
app.send_task('tasks.home.crawl_weibo_datas', args=(id_obj.uid,), queue='home_crawler',
routing_key='home_info')
def crawl_weibo_datas(uid):
limit = get_max_home_page()
cur_page = 1
while cur_page <= limit:
url = home_url.format(uid, cur_page)
html = get_page(url)
weibo_datas = get_wbdata_fromweb(html)
if not weibo_datas:
crawler.warning("user {} has no weibo".format(uid))
return
insert_weibo_datas(weibo_datas)
domain = public.get_userdomain(html)
cur_time = int(time.time()*1000)
ajax_url_0 = ajax_url.format(domain, 0, domain, uid, cur_page, cur_page, cur_time)
ajax_url_1 = ajax_url.format(domain, 1, domain, uid, cur_page, cur_page, cur_time+100)
if cur_page == 1:
# here we use local call to get total page number
total_page = get_total_page(crawl_ajax_page(ajax_url_1))
if total_page < limit:
limit = total_page
cur_page += 1
app.send_task('tasks.home.crawl_ajax_page', args=(ajax_url_0,), queue='ajax_home_crawler',
routing_key='ajax_home_info')
app.send_task('tasks.home.crawl_ajax_page', args=(ajax_url_1,), queue='ajax_home_crawler',
routing_key='ajax_home_info')
set_seed_home_crawled(uid)
def search_keyword(keyword, keyword_id):
cur_page = 1
encode_keyword = url_parse.quote(keyword)
while cur_page < limit:
cur_url = url.format(encode_keyword, cur_page)
search_page = get_page(cur_url)
if not search_page:
crawler.warning('本次并没获取到关键词{}的相关微博,该页面源码是{}'.format(
keyword, search_page))
return
search_list = parse_search.get_search_info(search_page)
# 先判断数据库里是否存在相关的微博，如果是已有的，那就说明是已经抓取的微博(因为结果默认按时间排序)，就退出循环
for wb_data in search_list:
rs = get_wb_by_mid(wb_data.weibo_id)
if rs:
crawler.info('关键词{}本次搜索更新的微博已经获取完成'.format(keyword))
return
else:
insert_weibo_data(wb_data)
insert_keyword_wbid(keyword_id, wb_data.weibo_id)
# 这里暂时使用网络调用而非本地调用，权衡两种方法的好处
app.send_task('tasks.user.crawl_person_infos',
args=(wb_data.uid, ),
queue='user_crawler',
routing_key='for_user_info')
# 判断是否包含下一页
if 'page next S_txt1 S_line1' in search_page:
cur_page += 1
else:
crawler.info('关键词{}搜索完成'.format(keyword))
return
def search_keyword(keyword, keyword_id):
cur_page = 1
encode_keyword = url_parse.quote(keyword)
while cur_page < limit:
cur_url = url.format(encode_keyword, cur_page)
search_page = get_page(cur_url)
if not search_page:
crawler.warning('No result for keyword {}, the source page is {}'.format(keyword, search_page))
return
search_list = parse_search.get_search_info(search_page)
# Because the search results are sorted by time, if any result has been stored in mysql,
# we need not crawl the same keyword in this turn
for wb_data in search_list:
rs = get_wb_by_mid(wb_data.weibo_id)
if rs:
crawler.info('keyword {} has been crawled in this turn'.format(keyword))
return
else:
insert_weibo_data(wb_data)
insert_keyword_wbid(keyword_id, wb_data.weibo_id)
# send task for crawling user info
app.send_task('tasks.user.crawl_person_infos', args=(wb_data.uid,), queue='user_crawler',
routing_key='for_user_info')
if 'page next S_txt1 S_line1' in search_page:
cur_page += 1
else:
crawler.info('keyword {} has been crawled in this turn'.format(keyword))
return
def search_keyword(keyword, keyword_id):
cur_page = 1
encode_keyword = url_parse.quote(keyword)
#crawler.info(limit)
while cur_page < limit:
cur_url = url.format(encode_keyword, cur_page)
search_page = get_page(cur_url)
#crawler.info(search_page)
if not search_page:
crawler.warning('No result for keyword {}, the source page is {}'.format(keyword, search_page))
return
search_list = parse_search.get_search_info(search_page)
# Because the search results are sorted by time, if any result has been stored in mysql,
# we need not crawl the same keyword in this turn
for wb_data in search_list:
rs = get_wb_by_mid(wb_data.weibo_id)
if rs:
crawler.info('keyword {} has been crawled in last turn'.format(keyword))
#continue
return
else:
insert_weibo_data(wb_data)
insert_keyword_wbid(keyword_id, wb_data.weibo_id)
# send task for crawling user info
app.send_task('tasks.user.crawl_person_infos', args=(wb_data.uid,), queue='user_crawler',
routing_key='for_user_info')
if 'page next S_txt1 S_line1' in search_page:
cur_page += 1
else:
crawler.info('keyword {} has been crawled in this turn'.format(keyword))
return
def get_answer_comments():
comment_ids = get_zhihu_answer_comment_not_crawled()
for comment_id in comment_ids:
app.send_task('tasks.answer_comment.get_one_answer_comments',
args=(comment_id[0]),
queue='answer_comment_crawler',
routing_key='for_search_info')
def excute_search_task():
keywords = get_search_keywords()
for each in keywords:
app.send_task('tasks.search.search_keyword',
args=(each[0], each[1]),
queue='search_crawler',
routing_key='for_search_info')
def excute_pic_task():
# 这里的策略由自己指定，可以基于已有用户做主页抓取，也可以指定一些用户,我这里直接选的种子数据库中的uid
id_objs = get_home_ids(0)
for id_obj in id_objs:
app.send_task('tasks.pic.crawl_weibo_pics', args=(id_obj.uid,), queue='pic_crawler',
routing_key='pic_info')
# crawl_weibo_pics(id_obj.uid)
def execute_start_request():
meta = {}
start_url = "http://sou.zhaopin.com/jobs/searchresult.ashx?jl=%E6%B7%B1%E5%9C%B3&kw=python"
meta["start_url"] = start_url
app.send_task("tasks.downloader.downloader",
args=(start_url, meta),
queue="downloader_queue",
routing_key="for_download")
def excute_comment_task():
#weibo_datas = wb_data.get_weibo_comment_not_crawled()
weibo_data = '4079144788308403'
# for weibo_data in weibo_datas:
# app.send_task('tasks.comment.crawl_comment_page', args=(weibo_data.weibo_id,), queue='comment_crawler',
# routing_key='comment_info')
app.send_task('tasks.comment.crawl_comment_page', args=(weibo_data,), queue='comment_crawler',
routing_key='comment_info')
def execute_user_task():
seeds, is_exists = SeedUser.get_seed_names()
if is_exists:
for seed in seeds:
crawler.info(f"send task crawl_user_info {seed.name}")
app.send_task("tasks.user.crawl_user_info", args=(seed.name, ))
else:
crawler.info("find no user, abort")
def excute_repost_task():
# 以当前微博为源微博进行分析，不向上溯源，如果有同学需要向上溯源，需要自己判断一下该微博是否是根微博
weibo_datas = wb_data.get_weibo_repost_not_crawled()
crawler.info('本次一共有{}条微博需要抓取转发信息'.format(len(weibo_datas)))
for weibo_data in weibo_datas:
app.send_task('tasks.repost.crawl_repost_page', args=(weibo_data.weibo_id, weibo_data.uid),
queue='repost_crawler', routing_key='repost_info')
def excute_repost_task():
datas = weibosearch_dao.get_crawl_urls()
crawler.info('一共获取到{len}条需要抓取的微博'.format(len=len(datas)))
# 把抓取任务分发到各个机器上执行
for data in datas:
app.send_task('tasks.repost.get_current_reposts', args=(data['url'], data['mid']))
crawler.info('本次任务分发完成')
def excute_user_task():
seeds = get_seed_ids()
if seeds:
for seed in seeds:
app.send_task('tasks.user.crawl_person_infos',
args=(seed.uid, ),
queue='user_crawler',
routing_key='for_user_info')
def excute_comment_task():
# 只解析了根评论，而未对根评论下的评论进行抓取，如果有需要的同学，可以适当做修改
weibo_datas = wb_data.get_weibo_comment_not_crawled()
for weibo_data in weibo_datas:
app.send_task('tasks.comment.crawl_comment_page',
args=(weibo_data.weibo_id, ),
queue='comment_crawler',
routing_key='comment_info')
def excute_repost_task():
# regard current weibo url as the original url, you can also analyse from the root url
weibo_datas = wb_data.get_weibo_repost_not_crawled()
crawler.info('There are {} repost urls have to be crawled'.format(len(weibo_datas)))
for weibo_data in weibo_datas:
app.send_task('tasks.repost.crawl_repost_page', args=(weibo_data.weibo_id, weibo_data.uid),
queue='repost_crawler', routing_key='repost_info')
def excute_login_task():
infos = login_info.get_login_info()
log.crawler.info('本轮模拟登陆开始')
for info in infos:
app.send_task('tasks.login.login_task',
args=(info.name, info.password, info.need_verify),
queue='login_queue',
routing_key='for_login')
time.sleep(10)
def excute_home_task():
# 这里的策略由自己指定，可以基于已有用户做主页抓取，也可以指定一些用户,我这里直接选的种子数据库中的uid
uids = get_home_ids()
for uid in uids:
app.send_task('tasks.home.crawl_weibo_datas',
args=(uid[0], ),
queue='home_crawler',
routing_key='home_info')
def excute_home_task():
# you can have many strategies to crawl user's home page, here we choose table seed_ids's uid
# whose home_crawl is 0
id_objs = get_home_ids()
for id_obj in id_objs:
app.send_task('tasks.home.crawl_weibo_datas',
args=(id_obj.uid, ),
queue='home_crawler',
routing_key='home_info')
def excute_login_task():
infos = login_info.get_login_info()
# Clear all stacked login tasks before each time for login
Cookies.check_login_task()
log.crawler.info('The login task is starting...')
for info in infos:
app.send_task('tasks.login.login_task', args=(info.name, info.password), queue='login_queue',
routing_key='for_login')
time.sleep(10)
def excute_repost_task():
# regard current weibo url as the original url, you can also analyse from the root url
weibo_datas = wb_data.get_weibo_repost_not_crawled()
crawler.info('There are {} repost urls have to be crawled'.format(
len(weibo_datas)))
for weibo_data in weibo_datas:
app.send_task('tasks.repost.crawl_repost_page',
args=(weibo_data.weibo_id, weibo_data.uid),
queue='repost_crawler',
routing_key='repost_info')
def excute_login_task():
infos = login_info.get_login_info()
# 每次登陆前清楚所有堆积的登录任务
Cookies.check_login_task()
log.crawler.info('本轮模拟登陆开始')
for info in infos:
app.send_task('tasks.login.login_task',
args=(info.name, info.password),
queue='login_queue',
routing_key='for_login')
time.sleep(10)
def excute_login_task():
infos = login_info.get_login_info()
# Clear all stacked login tasks before each time for login
Cookies.check_login_task()
log.crawler.info('The login task is starting...')
for info in infos:
app.send_task('tasks.login.login_task',
args=(info.name, info.password),
queue='login_queue',
routing_key='for_login')
time.sleep(10)
def crawl_comment_page(mid):
limit = conf.get_max_comment_page() + 1
# 这里为了马上拿到返回结果，采用本地调用的方式
first_page = crawl_comment_by_page(mid, 1)
total_page = comment.get_total_page(first_page)
if total_page < limit:
limit = total_page + 1
for page_num in range(2, limit):
app.send_task('tasks.comment.crawl_comment_by_page', args=(mid, page_num), queue='comment_page_crawler',
routing_key='comment_page_info')
def crawl_comment_page(mid):
limit = conf.get_max_comment_page() + 1
# 这里为了马上拿到返回结果，采用本地调用的方式
first_page = crawl_comment_by_page(mid, 1)
total_page = comment.get_total_page(first_page)
if total_page < limit:
limit = total_page + 1
for page_num in range(2, limit):
app.send_task('tasks.comment.crawl_comment_by_page', args=(mid, page_num), queue='comment_page_crawler',
routing_key='comment_page_info')
def get_people_and_follows(people_id, selector):
try:
people = People()
people.people_id = people_id
people.name = selector.xpath(
'//div[@class="aw-user-center"]/div[1]/div/h1/text()')[0].strip()
people.desc = "".join(
selector.xpath(
'//div[@class="aw-user-center"]/div[1]/div/span/text()'))
if selector.xpath('//i[contains(@class,"i-user-locate")]'):
user_locate = selector.xpath(
'//i[contains(@class,"i-user-locate")]')[0].getparent()
people.province = "".join(user_locate.xpath('a[1]/text()'))
people.city = "".join(user_locate.xpath('a[2]/text()'))
if selector.xpath('//i[contains(@class,"i-user-post")]'):
user_post = selector.xpath(
'//i[contains(@class,"i-user-post")]')[0].getparent()
people.post = "".join(user_post.xpath('text()')).strip()
if selector.xpath('//i[contains(@class,"i-user-visits")]'):
user_visits = selector.xpath(
'//i[contains(@class,"i-user-visits")]')[0].getparent()
user_visits_str = "".join(user_visits.xpath('text()'))
people.home_visit_num = re.findall('(\d+)', user_visits_str)[0]
people_type_spans = selector.xpath(
'//div[@class="aw-user-center"]/div[1]/div/p[3]/span')
people.user_type = people_type_spans[0].xpath(
'a/em/text()')[0].replace("»", "").strip()
people.weiwang_num = people_type_spans[1].xpath('em/text()')[0]
people.agree_num = people_type_spans[2].xpath('em/text()')[0]
people.thanks_num = people_type_spans[3].xpath('em/text()')[0]
people.gold_num = people_type_spans[4].xpath('em/text()')[0]
if '+' in people.gold_num:
people.gold_num = 100
if selector.xpath('//span[contains(text(),"最后活跃")]'):
last_active_time_str = selector.xpath(
'//span[contains(text(),"最后活跃")]')[0].getparent().getnext(
).xpath('text()')[0]
people.last_active_time = str2datetime(last_active_time_str)
CommonOper.add_one(people)
CommonOper.add_filter_key("people_id", people_id)
except Exception as e:
jsl_log.warning(
"get people info error,people_id:{},here are details {}".format(
people_id,
format_tb(e.__traceback__)[0]))
app.send_task("tasks.people.do_follow",
args=(
people_id,
0,
),
queue="people_queue",
routing_key="people")
def crawl_user_info(name):
"""抓取用户首页的信息
:param name: 用户名
:return: None
"""
if not name:
return None
crawler.info(f"received task crawl_user_info {name}")
user, other_crawled = get_profile(name)
if not other_crawled:
crawler.info(f"send task crawl_follower_fans {user.name}")
app.send_task("tasks.user.crawl_follower_fans", args=(user.name, ))
def excute_login_task():
infos = login_info.get_login_info()
log.crawler.info('本轮模拟登陆开始')
for info in infos:
try:
rs = Cookies.check_login_task(info.name)
except KeyError:
log.crawler.warning('请检查是否已经启动worker及指定了login_queue')
else:
if not rs:
app.send_task('tasks.login.login_task',
args=(info.name, info.password,
info.need_verify),
queue='login_queue',
routing_key='for_login')
def get_douban_subject_id_list(tag, sort, page_start, page_limit):
"""
按subject获取豆瓣电影id列表
:param tag:
:param sort:
:param page_start:
:param page_limit:
:return:
"""
app.send_task('tasks.movie.douban_get_subject_id_list',
args=(
tag,
sort,
page_start,
page_limit,
))
def task_filter(task_type, param):
if task_type == 'question':
if not CommonOper.is_exist("question_id", param):
app.send_task('tasks.question.do_question',
args=(param, ),
queue='question_queue',
routing_key='question')
else:
jsl_log.info("相关question已存在,question_id:{}".format(param))
elif task_type == 'people':
if not CommonOper.is_exist("people_id", param):
app.send_task('tasks.people.do_people',
args=(param, ),
queue='people_queue',
routing_key='people')
else:
jsl_log.info("相关people已存在,people_id:{}".format(param))
def excute_start_crawler(parameter):
crawler_info.info("Task started!")
result = app.send_task('tasks.start_task.start_crawler',
args=(parameter["id"], ),
queue='crawler_queue',
routing_key='for_crawler')
crawler_info.info(result.task_id)
return result.task_id
def crawl_person_infos(uid):
"""
根据用户id来爬取用户相关资料和用户的关注数和粉丝数（由于微博服务端限制，默认爬取前五页，企业号的关注和粉丝也不能查看）
:param uid: 用户id
:return:
"""
if not uid:
return
# 由于与别的任务共享数据表，所以需要先判断数据库是否有该用户信息，再进行抓取
user = user_get.get_profile(uid)
# 不抓取企业号
if user.verify_type == 2:
set_seed_other_crawled(uid)
return
app.send_task('tasks.user.crawl_follower_fans', args=(uid,), queue='fans_followers',
routing_key='for_fans_followers')
def start_crawler(parameter):
parameters = {}
parameters["id"] = parameter
params = spider_task.start_task(parameters)
for item in params:
crawler = Crawleruning()
crawler.set_parameter(item)
crawler.start()
target_url = crawler.process()
for sub_url in target_url:
item["url"] = sub_url
app.send_task('tasks.start_task.parse_url',
args=(item, ),
queue='crawler_queue',
routing_key='for_crawler')
parameters["status"] = 0
spider_task.update_status(parameters)
def crawl_person_infos(uid):
"""
Crawl user info and their fans and followers
For the limit of weibo's backend, we can only crawl 5 pages of the fans and followers.
We also have no permissions to view enterprise's followers and fans info
:param uid: current user id
:return: None
"""
if not uid:
return
user, is_crawled = user_get.get_profile(uid)
# If it's enterprise user, just skip it
if user and user.verify_type == 2:
set_seed_other_crawled(uid)
return
# Crawl fans and followers
if not is_crawled:
app.send_task('tasks.user.crawl_follower_fans', args=(uid,), queue='fans_followers',
routing_key='for_fans_followers')
def excute_comment_task():
# 只解析了根评论，而未对根评论下的评论进行抓取，如果有需要的同学，可以适当做修改
weibo_datas = wb_data.get_weibo_comment_not_crawled()
for weibo_data in weibo_datas:
app.send_task('tasks.comment.crawl_comment_page', args=(weibo_data.weibo_id,), queue='comment_crawler',
routing_key='comment_info')
def excute_search_task():
keywords = get_search_keywords()
for each in keywords:
app.send_task('tasks.search.search_keyword', args=(each[0], each[1]), queue='search_crawler',
routing_key='for_search_info')
def get_weibo_info(each, html):
wb_data = WeiboData()
try:
wb_data.weibo_id = each['mid']
except (AttributeError, IndexError, TypeError):
parser.error('Failed to get weibo id, the page source is {}'.format(html))
return None
imgs = list()
imgs_url = list()
try:
imgs = str(each.find(attrs={'node-type': 'feed_list_media_prev'}).find_all('li'))
imgs_url = list(map(url_filter, re.findall(r"src=\"(.+?)\"", imgs)))
wb_data.weibo_img = ';'.join(imgs_url)
except Exception:
wb_data.weibo_img = ''
if IMG_ALLOW and imgs and imgs_url:
app.send_task('tasks.downloader.download_img_task', args=(wb_data.weibo_id, imgs_url),
queue='download_queue', routing_key='for_download')
wb_data.weibo_img_path = IMG_PATH
else:
wb_data.weibo_img_path = ''
# todo 没找到vedio的测试数据
try:
a_tag = str(each.find(attrs={'node-type': 'feed_list_media_prev'}).find_all('a'))
extracted_url = urllib.parse.unquote(re.findall(r"full_url=(.+?)&", a_tag)[0])
wb_data.weibo_video = url_filter(extracted_url)
except Exception:
wb_data.weibo_video = ''
try:
wb_data.device = each.find(attrs={'class': 'from'}).find(attrs={'rel': 'nofollow'}).text
except AttributeError:
wb_data.device = ''
try:
# todo 日期格式化,会有今日XXX，X分钟前等噪音
wb_data.create_time = each.find(attrs={'class': 'from'}).find(attrs={'target': '_blank'}).text.strip()
wb_data.weibo_url = 'https:'+each.find(attrs={'class': 'from'}).find(attrs={'target': '_blank'})['href']
wb_data.uid = each.find(attrs={'class': 'from'}).find(attrs={'target': '_blank'})['href'].split('/')[3]
except (AttributeError, KeyError):
wb_data.create_time = ''
wb_data.weibo_url = ''
wb_data.weibo_uid = ''
try:
wb_data.repost_num = int(each.find(attrs={'class': 'card-act'}).find_all('li')[0].find('a').text.split('/')[-1])
except (AttributeError, ValueError):
wb_data.repost_num = 0
try:
wb_data.comment_num = int(each.find(attrs={'class': 'card-act'}).find_all('li')[1].find('a').text.split('/')[-1])
except (AttributeError, ValueError):
wb_data.comment_num = 0
try:
wb_data.praise_num = int(each.find(attrs={'class': 'card-act'}).find_all('li')[2].find('a').find('em').text)
except (AttributeError, ValueError):
wb_data.praise_num = 0
if '展开全文' in str(each):
is_all_cont = 1
try:
wb_data.weibo_cont = each.find(attrs={'node-type': 'feed_list_content_full'}).text.strip()
except Exception as why:
parser.error('Failed to get weibo cont, the error is {}, the page source is {}'.format(why, html))
return None
else:
is_all_cont = 1
try:
wb_data.weibo_cont = each.find(attrs={'node-type': 'feed_list_content'}).text.strip()
except Exception as why:
parser.error('Failed to get weibo cont, the error is {}, the page source is {}'.format(why, html))
return None
return wb_data, is_all_cont
def excute_user_task():
seeds = get_seed_ids()
if seeds:
for seed in seeds:
app.send_task('tasks.user.crawl_person_infos', args=(seed.uid,), queue='user_crawler',
routing_key='for_user_info')
