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Code Issues Releases Wiki Activity

[mixcloud] Rewrite extractor (fixes #278)

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pull/1348/merge
Jaime Marquínez Ferrándiz 11 years ago
parent 0b7f31184d
commit 19e1d35989
2 changed files with 48 additions and 85 deletions
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122
youtube_dl/extractor/mixcloud.py
Unescape Escape View File

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

11
youtube_dl/utils.py
Unescape Escape View File

@ -700,7 +700,16 @@ def unified_strdate(date_str):
date_str = date_str.replace(',',' ')
# %z (UTC offset) is only supported in python>=3.2
date_str = re.sub(r' (\+|-)[\d]*$', '', date_str)
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']
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',
'%Y-%m-%dT%H:%M:%SZ',
]
for expression in format_expressions:
try:
upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d')

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