]> gitweb @ CieloNegro.org - youtube-dl.git/blob - youtube_dl/extractor/justintv.py
[toutv] really skip test
[youtube-dl.git] / youtube_dl / extractor / justintv.py
1 import json
2 import os
3 import re
4 import xml.etree.ElementTree
5
6 from .common import InfoExtractor
7 from ..utils import (
8     ExtractorError,
9     formatSeconds,
10 )
11
12
13 class JustinTVIE(InfoExtractor):
14     """Information extractor for justin.tv and twitch.tv"""
15     # TODO: One broadcast may be split into multiple videos. The key
16     # 'broadcast_id' is the same for all parts, and 'broadcast_part'
17     # starts at 1 and increases. Can we treat all parts as one video?
18
19     _VALID_URL = r"""(?x)^(?:http://)?(?:www\.)?(?:twitch|justin)\.tv/
20         (?:
21             (?P<channelid>[^/]+)|
22             (?:(?:[^/]+)/b/(?P<videoid>[^/]+))|
23             (?:(?:[^/]+)/c/(?P<chapterid>[^/]+))
24         )
25         /?(?:\#.*)?$
26         """
27     _JUSTIN_PAGE_LIMIT = 100
28     IE_NAME = u'justin.tv'
29     _TEST = {
30         u'url': u'http://www.twitch.tv/thegamedevhub/b/296128360',
31         u'file': u'296128360.flv',
32         u'md5': u'ecaa8a790c22a40770901460af191c9a',
33         u'info_dict': {
34             u"upload_date": u"20110927", 
35             u"uploader_id": 25114803, 
36             u"uploader": u"thegamedevhub", 
37             u"title": u"Beginner Series - Scripting With Python Pt.1"
38         }
39     }
40
41     def report_download_page(self, channel, offset):
42         """Report attempt to download a single page of videos."""
43         self.to_screen(u'%s: Downloading video information from %d to %d' %
44                 (channel, offset, offset + self._JUSTIN_PAGE_LIMIT))
45
46     # Return count of items, list of *valid* items
47     def _parse_page(self, url, video_id):
48         info_json = self._download_webpage(url, video_id,
49                                            u'Downloading video info JSON',
50                                            u'unable to download video info JSON')
51
52         response = json.loads(info_json)
53         if type(response) != list:
54             error_text = response.get('error', 'unknown error')
55             raise ExtractorError(u'Justin.tv API: %s' % error_text)
56         info = []
57         for clip in response:
58             video_url = clip['video_file_url']
59             if video_url:
60                 video_extension = os.path.splitext(video_url)[1][1:]
61                 video_date = re.sub('-', '', clip['start_time'][:10])
62                 video_uploader_id = clip.get('user_id', clip.get('channel_id'))
63                 video_id = clip['id']
64                 video_title = clip.get('title', video_id)
65                 info.append({
66                     'id': video_id,
67                     'url': video_url,
68                     'title': video_title,
69                     'uploader': clip.get('channel_name', video_uploader_id),
70                     'uploader_id': video_uploader_id,
71                     'upload_date': video_date,
72                     'ext': video_extension,
73                 })
74         return (len(response), info)
75
76     def _real_extract(self, url):
77         mobj = re.match(self._VALID_URL, url)
78         if mobj is None:
79             raise ExtractorError(u'invalid URL: %s' % url)
80
81         api_base = 'http://api.justin.tv'
82         paged = False
83         if mobj.group('channelid'):
84             paged = True
85             video_id = mobj.group('channelid')
86             api = api_base + '/channel/archives/%s.json' % video_id
87         elif mobj.group('chapterid'):
88             chapter_id = mobj.group('chapterid')
89
90             webpage = self._download_webpage(url, chapter_id)
91             m = re.search(r'PP\.archive_id = "([0-9]+)";', webpage)
92             if not m:
93                 raise ExtractorError(u'Cannot find archive of a chapter')
94             archive_id = m.group(1)
95
96             api = api_base + '/broadcast/by_chapter/%s.xml' % chapter_id
97             chapter_info_xml = self._download_webpage(api, chapter_id,
98                                              note=u'Downloading chapter information',
99                                              errnote=u'Chapter information download failed')
100             doc = xml.etree.ElementTree.fromstring(chapter_info_xml)
101             for a in doc.findall('.//archive'):
102                 if archive_id == a.find('./id').text:
103                     break
104             else:
105                 raise ExtractorError(u'Could not find chapter in chapter information')
106
107             video_url = a.find('./video_file_url').text
108             video_ext = video_url.rpartition('.')[2] or u'flv'
109
110             chapter_api_url = u'https://api.twitch.tv/kraken/videos/c' + chapter_id
111             chapter_info_json = self._download_webpage(chapter_api_url, u'c' + chapter_id,
112                                    note='Downloading chapter metadata',
113                                    errnote='Download of chapter metadata failed')
114             chapter_info = json.loads(chapter_info_json)
115
116             bracket_start = int(doc.find('.//bracket_start').text)
117             bracket_end = int(doc.find('.//bracket_end').text)
118
119             # TODO determine start (and probably fix up file)
120             #  youtube-dl -v http://www.twitch.tv/firmbelief/c/1757457
121             #video_url += u'?start=' + TODO:start_timestamp
122             # bracket_start is 13290, but we want 51670615
123             self._downloader.report_warning(u'Chapter detected, but we can just download the whole file. '
124                                             u'Chapter starts at %s and ends at %s' % (formatSeconds(bracket_start), formatSeconds(bracket_end)))
125
126             info = {
127                 'id': u'c' + chapter_id,
128                 'url': video_url,
129                 'ext': video_ext,
130                 'title': chapter_info['title'],
131                 'thumbnail': chapter_info['preview'],
132                 'description': chapter_info['description'],
133                 'uploader': chapter_info['channel']['display_name'],
134                 'uploader_id': chapter_info['channel']['name'],
135             }
136             return [info]
137         else:
138             video_id = mobj.group('videoid')
139             api = api_base + '/broadcast/by_archive/%s.json' % video_id
140
141         self.report_extraction(video_id)
142
143         info = []
144         offset = 0
145         limit = self._JUSTIN_PAGE_LIMIT
146         while True:
147             if paged:
148                 self.report_download_page(video_id, offset)
149             page_url = api + ('?offset=%d&limit=%d' % (offset, limit))
150             page_count, page_info = self._parse_page(page_url, video_id)
151             info.extend(page_info)
152             if not paged or page_count != limit:
153                 break
154             offset += limit
155         return info