git.bitcoin.ninja Git - youtube-dl/blob - youtube_dl/extractor/googlesearch.py

   1 import itertools
   2 import re
   3
   4 from .common import SearchInfoExtractor
   5 from ..utils import (
   6     compat_urllib_parse,
   7 )
   8
   9
  10 class GoogleSearchIE(SearchInfoExtractor):
  11     IE_DESC = u'Google Video search'
  12     _MORE_PAGES_INDICATOR = r'id="pnnext" class="pn"'
  13     _MAX_RESULTS = 1000
  14     IE_NAME = u'video.google:search'
  15     _SEARCH_KEY = 'gvsearch'
  16
  17     def _get_n_results(self, query, n):
  18         """Get a specified number of results for a query"""
  19
  20         res = {
  21             '_type': 'playlist',
  22             'id': query,
  23             'entries': []
  24         }
  25
  26         for pagenum in itertools.count(1):
  27             result_url = u'http://www.google.com/search?tbm=vid&q=%s&start=%s&hl=en' % (compat_urllib_parse.quote_plus(query), pagenum*10)
  28             webpage = self._download_webpage(result_url, u'gvsearch:' + query,
  29                                              note='Downloading result page ' + str(pagenum))
  30
  31             for mobj in re.finditer(r'<h3 class="r"><a href="([^"]+)"', webpage):
  32                 e = {
  33                     '_type': 'url',
  34                     'url': mobj.group(1)
  35                 }
  36                 res['entries'].append(e)
  37
  38             if (pagenum * 10 > n) or not re.search(self._MORE_PAGES_INDICATOR, webpage):
  39                 return res