def parse_detail(self, response):
try:
query = urlparse.urlparse(response.url).query
params = urlparse.parse_qs(query)
fd = params["fd"][0].decode("gbk")
sd = params["sd"][0].decode("gbk")
except:
fd = None
sd = None
traceback.print_exc()
contents = response.css(".sub_dir_box").xpath("//table//td")
nav = response.css("#album_list_page").css(".pagination")
for a in contents:
title = a.xpath("a/text()").extract()
link = a.xpath("a/@href").extract()
il = ConvertItemLoader(CatalogItem())
il.add_value(u"name", title)
il.add_value(u"fd", fd)
il.add_value(u"sd", sd)
il.add_value(u"url", link)
il.load_item()
yield il.item
links = nav.xpath("a/text()").extract()
if u'\u4e0b\u4e00\u9875' in links:
idx = links.index(u'\u4e0b\u4e00\u9875')
np = "http://tieba.baidu.com" + nav.xpath("a/@href").extract()[idx]
yield Request(np, callback = self.parse)
def parse(self, response):
if self.need_insert_catalog:
self.need_insert_catalog = False
il = ConvertItemLoader(CatalogItem())
il.add_value(u"name", self.subject)
il.add_value(u"url", ensure_unicode(response.url))
try:
info = response.css("#forumInfoPanel").css(".forum_dir_info").xpath("li/a/@href").extract()[-1]
query = urlparse.urlparse(info).query
params = urlparse.parse_qs(query)
il.add_value(u"fd", params["fd"][0].encode("raw_unicode_escape").decode("utf8"))
il.add_value(u"sd", params["sd"][0].encode("raw_unicode_escape").decode("utf8"))
il.load_item()
yield il.item
except:
traceback.print_exc()
contents = response.css("#thread_list").xpath('//li[contains(@data-field, "id")]')
for li in contents:
data = li.xpath("@data-field").extract()
try:
data_dict = json.loads(data[0])
data_dict[u"post_id"] = data_dict.pop("id")
pid = data_dict["post_id"]
replynum = data_dict["reply_num"]
is_top = data_dict["is_top"]
sql_replynum = self.crawler.sqlmanager.get_post_replynum(pid)
if sql_replynum is None or replynum > sql_replynum:
text = li.css(".threadlist_title").xpath("a/@title").extract()
data_dict[u"title"] = text[0]
data_dict[u"subject"] = self.subject
page = 1 if sql_replynum is None else sql_replynum / 30 + 1
post_url = "http://tieba.baidu.com/p/%d?pn=%d" % (pid, page)
item = PostListItem()
for key in item.fields.keys():
if data_dict.has_key(key):
if isinstance(data_dict[key], unicode):
item[key] = data_dict[key].encode("utf-8")
else:
item[key] = data_dict[key]
request = Request(post_url, self.parse_post)
request.meta["pitem"] = item
yield request
elif not is_top:
self.refresh_postlist = False
break
except:
print "-----------parse except------------"
self.refresh_postlist = False
traceback.print_exc()
if self.refresh_postlist:
nav = response.css(".pager").xpath("a[contains(text(), '>')]")
if nav:
np = "http://tieba.baidu.com" + nav.xpath("@href").extract()[0]
yield Request(np, self.parse)
