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from copy import deepcopy
from unittest import TestCase
import requests
from lxml import etree, html
__author__ = 'icoz'
class PostDeleted(Exception):
pass
class TMTopic(object):
def __init__(self, topic_id, domain='habrahabr.ru'):
'''
init
:param topic_id: str or int with topic id
:return:
'''
self.domain = domain
if isinstance(topic_id, (str, int)):
self.post = dict()
self._topic_id = topic_id
self.url = self._getTopicUrl(topic_id)
self._parseTopic()
else:
raise TypeError('topic_id must be str or int!')
def getTopicUrl(self):
return self.url
def _getTopicUrl(self, topic_id):
return str('https://{domain}/post/{tid}/').format(domain=self.domain, tid=topic_id)
def _parseTopic(self):
'''
returns info
'''
self.post = dict()
req = requests.get(self.url)
if req.status_code != 200:
raise IOError('Not loaded! {} gives status_code={}'.format(self.url, req.status_code))
doc = html.document_fromstring(req.text)
self.post['hubs'] = []
hubs = doc.xpath("//div[@class='hubs']/a")
for h in hubs:
self.post['hubs'].append((h.text, h.attrib['href']))
post_title = doc.xpath('//h1[@class="post__title"]/span') or \
doc.xpath('//h1[@class="megapost-head__title"]')
if len(post_title) == 0:
raise PostDeleted('Post Deleted! {} gives status_code={}'.format(self.url, req.status_code))
self.post['title'] = post_title
tmp = \
doc.xpath("//a[@class='post-type__value post-type__value_author']") or \
doc.xpath("//div[@class='author-info__username']//a[@class='author-info__nickname']") or \
doc.xpath("//div[@class='author-info__username']//a[@class='author-info__name']") or \
doc.xpath("//div[@class='author-info__username']//span[@class='author-info__name']")
if len(tmp):
self.post['author'] = tmp[0].text
self.post['author_url'] = ('https://' + self.domain + tmp[0].attrib['href'] ) if 'href' in tmp[0].attrib else ''
else:
self.post['author_url']= ''
self.post['author'] = ''
###
post_desc = doc.xpath("//meta[@name='description']/@content")
self.post['desc'] = post_desc[0].strip("\r\n")
#
tmp = doc.xpath("//link[@rel='stylesheet'][@media='all']")
style = '\n'.join([ str(etree.tostring(st,pretty_print=True, method='html').decode('utf-8')).strip("\n\r") for st in tmp ])
self.post['styles'] = style if len(style)>2 else ''
#
#tmp = doc.xpath("//style[@type='text/css']")
#style =''.join([ str(etree.tostring(st,pretty_print=True, method='html').decode('utf-8')) for st in tmp ])
#self.post['styles'] += style if (len(style)>2) else ''
#
post_keywords = doc.xpath("//meta[@name='keywords']/@content")
self.post['keywords'] = post_keywords[0].strip("\r\n") if len(post_keywords) else ''
###
# bug in class 'infopanel ' - space added
tmp = doc.xpath(
"//ul[@class='postinfo-panel postinfo-panel_post']//span[@class='oting-wjt__counter-score js-score']")
self.post['rating'] = tmp[0].text if len(tmp) else ''
tmp = doc.xpath("//div[@class='content html_format js-mediator-article']") or \
doc.xpath('//div[@class="article__body js-mediator-article"]')
self.post['text'] = etree.tostring(tmp[0], pretty_print=True, method='html').decode('utf-8') \
if len(tmp) else ''
self.post['comments'] = []
# bug in class 'comments_list ' - space added
# comments = doc.xpath("//div[@class='comments_list ']//div[@class='comment_item']")
# comments = doc.xpath("//ul[@id='comments-list']//li[@class='comment_item']")
# record = (author, text)
authors = list(
map(lambda x: x.text, doc.xpath("//ul[@id='comments-list']//a[@class='comment-item__username']"))
)
cmt_texts = list(map(lambda x: etree.tostring(x, pretty_print=True, method='html').decode('utf-8'),
doc.xpath("//ul[@id='comments-list']//div[starts-with(@class,'message html_format ')]"))
)
c_id = list(
map(lambda x: int(x.attrib['id'][8:]), doc.xpath("//ul[@id='comments-list']//li[@class='comment_item']"))
)
p_id = list(map(lambda x: int(x.attrib['data-parent_id']),
doc.xpath("//ul[@id='comments-list']//span[@class='parent_id']")))
time = list(map(lambda x: x.text.strip(), doc.xpath("//ul[@id='comments-list']//time")))
tpl = tuple(zip(authors, cmt_texts, c_id, p_id, time))
self.post['comments'] = tuple(
map(
lambda x:
{
'author': x[0],
'text': x[1],
'c_id': x[2],
'p_id': x[3],
'time': x[4],
},
tpl)
)
self.post['comments_count'] = len(self.post['comments'])
# self.post['comments'] = list()
# for c in comments:
# # self.post['comments'].append(etree.tostring(c, pretty_print=True, method='html').decode('utf-8'))
# # record = (author, text, c_id, parent_c_id)
# author = c.xpath("//a[@class='comment-item__username']")
# if len(author): author = author[0].text
# else: author = '<anonymous>'
# text = c.xpath("//div[@class='message html_format ']")
# if text != '': text = text[0].text
# c_id = c.attrib['id']
# p_id = c.xpath("//span[@class='parent_id']")[0]
# if p_id != '': p_id = p_id.attrib['data-parent_id']
# self.post['comments'].append((author, text, c_id, p_id))
def author(self):
return deepcopy(self.post['author'])
###
def author_url(self):
return deepcopy(self.post['author_url'])
def desc(self):
return deepcopy(self.post['desc'])
def styles(self):
return deepcopy(self.post['styles'])
def keywords(self):
return deepcopy(self.post['keywords'])
###
def text(self):
return deepcopy(self.post['text'])
def title(self):
return deepcopy(self.post['title'])
def rating(self):
return deepcopy(self.post['rating'])
def comments(self):
return deepcopy(self.post['comments'])
def comments_count(self):
return deepcopy(self.post['comments_count'])
def post_id(self):
return self._topic_id
class HabraTopic(TMTopic):
def __init__(self, topic_id):
super().__init__(topic_id, domain='habrahabr.ru')
self.post['title'] = self.post['title'][0].text
class GeektimesTopic(TMTopic):
def __init__(self, topic_id):
super().__init__(topic_id, domain='geektimes.ru')
self.post['title'] = self.post['title'][0].text
# R.I.P.
# class MegamozgTopic(TMTopic):
# def __init__(self, topic_id):
# super().__init__(topic_id, domain='megamozg.ru')
import pprint
class TestHabraTopic(TestCase):
def test_topic(self):
t = HabraTopic(231957)
pp = pprint.PrettyPrinter(indent=4)
pp.pprint(t.author())
self.assertEqual(t.author(), '@yaklamm')
pp.pprint(t.title())
self.assertEqual(t.title(), 'Memory management в ядре Linux. Семинар в Яндексе')
pp.pprint(t.post['comments_count'])
pp.pprint(t.post['rating'])
def test_topic2(self):
t = HabraTopic(208802)
pp = pprint.PrettyPrinter(indent=4)
pp.pprint(t.author())
self.assertEqual(t.author(), '@icoz')
self.assertEqual(t.title(), 'Экспорт Избранного на Хабре в PDF')
pp.pprint(t.title())
pp.pprint(t.post['comments_count'])
pp.pprint(t.post['rating'])
self.assertEqual(t.comments()[0]['author'], 'keccak')
self.assertEqual(t.comments()[1]['author'], 'icoz')
def test_topic3(self):
t = HabraTopic(28108)
pp = pprint.PrettyPrinter(indent=4)
pp.pprint(t.author())
self.assertEqual(t.author(), '@cachealot')
self.assertEqual(t.title(), 'эффективное использование vim: «from the very begining»')
pp.pprint(t.title())
pp.pprint(t.post['comments_count'])
pp.pprint(t.post['rating'])
self.assertEqual(t.comments()[0]['author'], 'cachealot')
from lxml import html
txt = html.fromstring(t.comments()[0]['text']).text_content().replace("'",'').strip()
self.assertEqual(txt, 'не поверите, 3,5 часа убил на пост )')
self.assertEqual(t.comments()[0]['c_id'], 734629)
self.assertEqual(t.comments()[0]['p_id'], 0)
self.assertEqual(t.comments()[1]['author'], 'ShPashok')
txt = html.fromstring(t.comments()[1]['text']).text_content().replace("'",'').strip()
self.assertEqual(txt, 'а 2 секунды на хабракат пожалели :)')
self.assertEqual(t.comments()[1]['c_id'], 734630)
self.assertEqual(t.comments()[1]['p_id'], 734629)
class TestGTTopic(TestCase):
def test_topic(self):
t = GeektimesTopic(243447)
pp = pprint.PrettyPrinter(indent=4)
pp.pprint(t.author())
self.assertEqual(t.author(), '@SOUNDPAL')
pp.pprint(t.title())
self.assertEqual(t.title(), 'На что влияет сопротивление наушников')
pp.pprint(t.post['comments_count'])
pp.pprint(t.post['rating'])
# def test_topic2(self):
# t = GeektimesTopic(245130)
# pp = pprint.PrettyPrinter(indent=4)
# pp.pprint(t.author())
# self.assertEqual(t.author(), '@Robotex')
# pp.pprint(t.title())
# self.assertEqual(t.title(), 'Autodesk и Voxel8 делают 3D-печать электроники реальностью')
# pp.pprint(t.post['comments_count'])
# pp.pprint(t.post['rating'])
# class TestMMTopic(TestCase):
# def test_topic(self):
# t = MegamozgTopic(418)
# pp = pprint.PrettyPrinter(indent=4)
# pp.pprint(t.author())
# self.assertEqual(t.author(), '@Kirilkin')
# pp.pprint(t.title())
# pp.pprint(t.post['comments_count'])
# pp.pprint(t.post['rating'])
#
# def test_topic2(self):
# t = MegamozgTopic(8568)
# pp = pprint.PrettyPrinter(indent=4)
# pp.pprint(t.author())
# self.assertEqual(t.author(), '@jasiejames')
# pp.pprint(t.title())
# pp.pprint(t.post['comments_count'])
# pp.pprint(t.post['rating'])
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