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[youtubedl] / youtube_dl / extractor / soundcloud.py
1 import json
2 import re
3
4 from .common import InfoExtractor
5 from ..utils import (
6 compat_str,
7
8 ExtractorError,
9 unified_strdate,
10 )
11
12
13 class SoundcloudIE(InfoExtractor):
14 """Information extractor for soundcloud.com
15 To access the media, the uid of the song and a stream token
16 must be extracted from the page source and the script must make
17 a request to media.soundcloud.com/crossdomain.xml. Then
18 the media can be grabbed by requesting from an url composed
19 of the stream token and uid
20 """
21
22 _VALID_URL = r'^(?:https?://)?(?:www\.)?soundcloud\.com/([\w\d-]+)/([\w\d-]+)'
23 IE_NAME = u'soundcloud'
24
25 def report_resolve(self, video_id):
26 """Report information extraction."""
27 self.to_screen(u'%s: Resolving id' % video_id)
28
29 def _real_extract(self, url):
30 mobj = re.match(self._VALID_URL, url)
31 if mobj is None:
32 raise ExtractorError(u'Invalid URL: %s' % url)
33
34 # extract uploader (which is in the url)
35 uploader = mobj.group(1)
36 # extract simple title (uploader + slug of song title)
37 slug_title = mobj.group(2)
38 full_title = '%s/%s' % (uploader, slug_title)
39
40 self.report_resolve(full_title)
41
42 url = 'http://soundcloud.com/%s/%s' % (uploader, slug_title)
43 resolv_url = 'http://api.soundcloud.com/resolve.json?url=' + url + '&client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
44 info_json = self._download_webpage(resolv_url, full_title, u'Downloading info JSON')
45
46 info = json.loads(info_json)
47 video_id = info['id']
48 self.report_extraction(full_title)
49
50 streams_url = 'https://api.sndcdn.com/i1/tracks/' + str(video_id) + '/streams?client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
51 stream_json = self._download_webpage(streams_url, full_title,
52 u'Downloading stream definitions',
53 u'unable to download stream definitions')
54
55 streams = json.loads(stream_json)
56 mediaURL = streams['http_mp3_128_url']
57 upload_date = unified_strdate(info['created_at'])
58
59 return [{
60 'id': info['id'],
61 'url': mediaURL,
62 'uploader': info['user']['username'],
63 'upload_date': upload_date,
64 'title': info['title'],
65 'ext': u'mp3',
66 'description': info['description'],
67 }]
68
69 class SoundcloudSetIE(InfoExtractor):
70 """Information extractor for soundcloud.com sets
71 To access the media, the uid of the song and a stream token
72 must be extracted from the page source and the script must make
73 a request to media.soundcloud.com/crossdomain.xml. Then
74 the media can be grabbed by requesting from an url composed
75 of the stream token and uid
76 """
77
78 _VALID_URL = r'^(?:https?://)?(?:www\.)?soundcloud\.com/([\w\d-]+)/sets/([\w\d-]+)'
79 IE_NAME = u'soundcloud:set'
80
81 def report_resolve(self, video_id):
82 """Report information extraction."""
83 self.to_screen(u'%s: Resolving id' % video_id)
84
85 def _real_extract(self, url):
86 mobj = re.match(self._VALID_URL, url)
87 if mobj is None:
88 raise ExtractorError(u'Invalid URL: %s' % url)
89
90 # extract uploader (which is in the url)
91 uploader = mobj.group(1)
92 # extract simple title (uploader + slug of song title)
93 slug_title = mobj.group(2)
94 full_title = '%s/sets/%s' % (uploader, slug_title)
95
96 self.report_resolve(full_title)
97
98 url = 'http://soundcloud.com/%s/sets/%s' % (uploader, slug_title)
99 resolv_url = 'http://api.soundcloud.com/resolve.json?url=' + url + '&client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
100 info_json = self._download_webpage(resolv_url, full_title)
101
102 videos = []
103 info = json.loads(info_json)
104 if 'errors' in info:
105 for err in info['errors']:
106 self._downloader.report_error(u'unable to download video webpage: %s' % compat_str(err['error_message']))
107 return
108
109 self.report_extraction(full_title)
110 for track in info['tracks']:
111 video_id = track['id']
112
113 streams_url = 'https://api.sndcdn.com/i1/tracks/' + str(video_id) + '/streams?client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
114 stream_json = self._download_webpage(streams_url, video_id, u'Downloading track info JSON')
115
116 self.report_extraction(video_id)
117 streams = json.loads(stream_json)
118 mediaURL = streams['http_mp3_128_url']
119
120 videos.append({
121 'id': video_id,
122 'url': mediaURL,
123 'uploader': track['user']['username'],
124 'upload_date': unified_strdate(track['created_at']),
125 'title': track['title'],
126 'ext': u'mp3',
127 'description': track['description'],
128 })
129 return videos