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-rwxr-xr-xgg_scrapper.py61
1 files changed, 56 insertions, 5 deletions
diff --git a/gg_scrapper.py b/gg_scrapper.py
index 59b81bc..650810c 100755
--- a/gg_scrapper.py
+++ b/gg_scrapper.py
@@ -1,13 +1,25 @@
#!/usr/bin/python
+import re
import urllib2
from bs4 import BeautifulSoup
import logging
logging.basicConfig(format='%(levelname)s:%(funcName)s:%(message)s',
level=logging.DEBUG)
+TOPIC_COUNT_RE = re.compile(r'\D+ \d+ - \d+ \D+ (\d+) \D+$')
-class GooglePage:
+
+class Topic(object):
+ def __init__(self, URL, name):
+ self.name = name
+ self.root = URL # root of the discussion
+
+ def __unicode__(self):
+ return "%s: %s" % (self.root, self.name)
+
+
+class GooglePage(object):
verb_handler = urllib2.HTTPHandler()
if logging.getLogger().getEffectiveLevel() == logging.DEBUG:
verb_handler.set_http_debuglevel(2)
@@ -42,9 +54,48 @@ class GooglePage:
raise urllib2.HTTPError('Unknown URL: {}'.format(URL))
def get_first_page_BS(self, URL):
- with self.opener.open(self.do_redirect(URL)) as esc_res:
- return BeautifulSoup(esc_res.read())
+ res = self.opener.open(self.do_redirect(URL))
+ in_str = res.read()
+ bs = BeautifulSoup(in_str)
+ res.close()
+ return bs
+
+ def get_count_topics(self, BS):
+ '''Get total number of topics from the number on the page
+ itself.
+
+ Which would be awesome for control, except it is wrong on all
+ pages in various and different ways. :(
+ '''
+ i_elem = BS.find_all('i')
+ if len(i_elem) <= 0:
+ raise ValueError('Cannot find count of topics!')
+
+ i_str = i_elem[0].string
+ return int(TOPIC_COUNT_RE.match(i_str).group(1))
def get_topics(self, BS):
- 'Recursively[?] get all topic (as special objects)'
- return []
+ '''Recursively[?] get all topic (as special objects)
+ Also return (for error checking) number of topics from the head
+ of the topic page.
+ '''
+ out = []
+ other = []
+ for a_elem in BS.find_all('a'):
+ if 'title' in a_elem.attrs:
+ # filter out all-non-topic <a>s
+ logging.debug('href = %s', a_elem['href'])
+ logging.debug('title = %s', a_elem['title'])
+ out.append(Topic(a_elem['href'], a_elem['title']))
+ else:
+ logging.debug('other = %s', a_elem)
+ other.append(a_elem)
+
+ if len(other) == 1:
+ new_bs = BeautifulSoup(self.opener.open(other[0]['href']).read())
+ out.extend(self.get_topics(new_bs))
+ elif len(other) != 0:
+ raise ValueError(
+ 'There must be either one or none link to the next page!')
+
+ return out