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Merge branch 'ustream-embed-recorded2' of https://github.com/anovicecodemonkey/youtub...
[youtube-dl] / youtube_dl / extractor / googlesearch.py
1 from __future__ import unicode_literals
2
3 import itertools
4 import re
5
6 from .common import SearchInfoExtractor
7 from ..utils import (
8     compat_urllib_parse,
9 )
10
11
12 class GoogleSearchIE(SearchInfoExtractor):
13     IE_DESC = 'Google Video search'
14     _MAX_RESULTS = 1000
15     IE_NAME = 'video.google:search'
16     _SEARCH_KEY = 'gvsearch'
17
18     def _get_n_results(self, query, n):
19         """Get a specified number of results for a query"""
20
21         entries = []
22         res = {
23             '_type': 'playlist',
24             'id': query,
25             'title': query,
26         }
27
28         for pagenum in itertools.count():
29             result_url = (
30                 'http://www.google.com/search?tbm=vid&q=%s&start=%s&hl=en'
31                 % (compat_urllib_parse.quote_plus(query), pagenum * 10))
32
33             webpage = self._download_webpage(
34                 result_url, 'gvsearch:' + query,
35                 note='Downloading result page ' + str(pagenum + 1))
36
37             for hit_idx, mobj in enumerate(re.finditer(
38                     r'<h3 class="r"><a href="([^"]+)"', webpage)):
39
40                 # Skip playlists
41                 if not re.search(r'id="vidthumb%d"' % (hit_idx + 1), webpage):
42                     continue
43
44                 entries.append({
45                     '_type': 'url',
46                     'url': mobj.group(1)
47                 })
48
49             if (len(entries) >= n) or not re.search(r'id="pnnext"', webpage):
50                 res['entries'] = entries[:n]
51                 return res