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[mixcloud] Rewrite extractor (fixes #278)
This commit is contained in:
Jaime Marquínez Ferrándiz
parent
0b7f31184d
commit
19e1d35989
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@ -5,34 +5,27 @@ import socket
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from .common import InfoExtractor
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from ..utils import (
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compat_http_client,
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compat_str,
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compat_urllib_error,
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compat_urllib_request,
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ExtractorError,
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unified_strdate,
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)
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class MixcloudIE(InfoExtractor):
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_WORKING = False # New API, but it seems good http://www.mixcloud.com/developers/documentation/
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_VALID_URL = r'^(?:https?://)?(?:www\.)?mixcloud\.com/([\w\d-]+)/([\w\d-]+)'
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IE_NAME = u'mixcloud'
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def report_download_json(self, file_id):
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"""Report JSON download."""
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self.to_screen(u'Downloading json')
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def get_urls(self, jsonData, fmt, bitrate='best'):
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"""Get urls from 'audio_formats' section in json"""
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try:
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bitrate_list = jsonData[fmt]
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if bitrate is None or bitrate == 'best' or bitrate not in bitrate_list:
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bitrate = max(bitrate_list) # select highest
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url_list = jsonData[fmt][bitrate]
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except TypeError: # we have no bitrate info.
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url_list = jsonData[fmt]
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return url_list
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_TEST = {
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u'url': u'http://www.mixcloud.com/dholbach/cryptkeeper/',
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u'file': u'dholbach-cryptkeeper.mp3',
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u'info_dict': {
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u'title': u'Cryptkeeper',
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u'description': u'After quite a long silence from myself, finally another Drum\'n\'Bass mix with my favourite current dance floor bangers.',
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u'uploader': u'Daniel Holbach',
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u'uploader_id': u'dholbach',
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u'upload_date': u'20111115',
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},
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}
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def check_urls(self, url_list):
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"""Returns 1st active url from list"""
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@ -45,71 +38,32 @@ class MixcloudIE(InfoExtractor):
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return None
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def _print_formats(self, formats):
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print('Available formats:')
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for fmt in formats.keys():
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for b in formats[fmt]:
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try:
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ext = formats[fmt][b][0]
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print('%s\t%s\t[%s]' % (fmt, b, ext.split('.')[-1]))
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except TypeError: # we have no bitrate info
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ext = formats[fmt][0]
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print('%s\t%s\t[%s]' % (fmt, '??', ext.split('.')[-1]))
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break
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def _real_extract(self, url):
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mobj = re.match(self._VALID_URL, url)
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if mobj is None:
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raise ExtractorError(u'Invalid URL: %s' % url)
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# extract uploader & filename from url
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uploader = mobj.group(1).decode('utf-8')
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file_id = uploader + "-" + mobj.group(2).decode('utf-8')
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# construct API request
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file_url = 'http://www.mixcloud.com/api/1/cloudcast/' + '/'.join(url.split('/')[-3:-1]) + '.json'
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# retrieve .json file with links to files
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request = compat_urllib_request.Request(file_url)
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try:
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self.report_download_json(file_url)
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jsonData = compat_urllib_request.urlopen(request).read()
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
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raise ExtractorError(u'Unable to retrieve file: %s' % compat_str(err))
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uploader = mobj.group(1)
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cloudcast_name = mobj.group(2)
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track_id = '-'.join((uploader, cloudcast_name))
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api_url = 'http://api.mixcloud.com/%s/%s/' % (uploader, cloudcast_name)
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webpage = self._download_webpage(url, track_id)
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json_data = self._download_webpage(api_url, track_id,
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u'Downloading cloudcast info')
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info = json.loads(json_data)
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# parse JSON
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json_data = json.loads(jsonData)
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player_url = json_data['player_swf_url']
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formats = dict(json_data['audio_formats'])
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preview_url = self._search_regex(r'data-preview-url="(.+?)"', webpage, u'preview url')
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song_url = preview_url.replace('/previews/', '/cloudcasts/originals/')
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template_url = re.sub(r'(stream\d*)', 'stream%d', song_url)
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final_song_url = self.check_urls(template_url % i for i in range(30))
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req_format = self._downloader.params.get('format', None)
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if self._downloader.params.get('listformats', None):
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self._print_formats(formats)
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return
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if req_format is None or req_format == 'best':
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for format_param in formats.keys():
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url_list = self.get_urls(formats, format_param)
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# check urls
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file_url = self.check_urls(url_list)
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if file_url is not None:
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break # got it!
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else:
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if req_format not in formats:
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raise ExtractorError(u'Format is not available')
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url_list = self.get_urls(formats, req_format)
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file_url = self.check_urls(url_list)
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format_param = req_format
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return [{
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'id': file_id.decode('utf-8'),
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'url': file_url.decode('utf-8'),
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'uploader': uploader.decode('utf-8'),
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'upload_date': None,
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'title': json_data['name'],
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'ext': file_url.split('.')[-1].decode('utf-8'),
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'format': (format_param is None and u'NA' or format_param.decode('utf-8')),
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'thumbnail': json_data['thumbnail_url'],
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'description': json_data['description'],
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'player_url': player_url.decode('utf-8'),
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}]
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return {
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'id': track_id,
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'title': info['name'],
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'url': final_song_url,
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'ext': 'mp3',
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'description': info['description'],
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'thumbnail': info['pictures'].get('extra_large'),
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'uploader': info['user']['name'],
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'uploader_id': info['user']['username'],
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'upload_date': unified_strdate(info['created_time']),
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'view_count': info['play_count'],
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}
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@ -700,7 +700,16 @@ def unified_strdate(date_str):
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date_str = date_str.replace(',',' ')
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# %z (UTC offset) is only supported in python>=3.2
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date_str = re.sub(r' (\+|-)[\d]*$', '', date_str)
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format_expressions = ['%d %B %Y', '%B %d %Y', '%b %d %Y', '%Y-%m-%d', '%d/%m/%Y', '%Y/%m/%d %H:%M:%S', '%d.%m.%Y %H:%M']
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format_expressions = [
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'%d %B %Y',
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'%B %d %Y',
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'%b %d %Y',
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'%Y-%m-%d',
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'%d/%m/%Y',
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'%Y/%m/%d %H:%M:%S',
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'%d.%m.%Y %H:%M',
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'%Y-%m-%dT%H:%M:%SZ',
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]
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for expression in format_expressions:
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try:
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upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d')
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