[zdf:channel] Simplify (#4427)

This commit is contained in:
Philipp Hagemeister 2014-12-11 17:07:59 +01:00
parent cf68bcaeff
commit 9abd500a74

View File

@ -1,12 +1,14 @@
# coding: utf-8 # coding: utf-8
from __future__ import unicode_literals from __future__ import unicode_literals
import functools
import re import re
from .common import InfoExtractor from .common import InfoExtractor
from ..utils import ( from ..utils import (
int_or_none, int_or_none,
unified_strdate, unified_strdate,
OnDemandPagedList,
) )
@ -86,28 +88,8 @@ def xml_to_format(fnode):
} }
def extract_channel_from_xml_url(ie, channel_id, xml_url):
doc = ie._download_xml(
xml_url, channel_id,
note='Downloading channel info',
errnote='Failed to download channel info')
title = doc.find('.//information/title').text
description = doc.find('.//information/detail').text
assets = [{'id': asset.find('./details/assetId').text,
'type': asset.find('./type').text,
} for asset in doc.findall('.//teasers/teaser')]
return {
'id': channel_id,
'title': title,
'description': description,
'assets': assets,
}
class ZDFIE(InfoExtractor): class ZDFIE(InfoExtractor):
_VALID_URL = r'^https?://www\.zdf\.de/ZDFmediathek(?P<hash>#)?/(.*beitrag/(?:video/)?)(?P<id>[0-9]+)(?:/[^/?]+)?(?:\?.*)?' _VALID_URL = r'(?:zdf:|zdf:video:|https?://www\.zdf\.de/ZDFmediathek(?:#)?/(.*beitrag/(?:video/)?))(?P<id>[0-9]+)(?:/[^/?]+)?(?:\?.*)?'
_TEST = { _TEST = {
'url': 'http://www.zdf.de/ZDFmediathek/beitrag/video/2037704/ZDFspezial---Ende-des-Machtpokers--?bc=sts;stt', 'url': 'http://www.zdf.de/ZDFmediathek/beitrag/video/2037704/ZDFspezial---Ende-des-Machtpokers--?bc=sts;stt',
@ -124,67 +106,54 @@ class ZDFIE(InfoExtractor):
'skip': 'Videos on ZDF.de are depublicised in short order', 'skip': 'Videos on ZDF.de are depublicised in short order',
} }
def _extract_video(self, video_id): def _real_extract(self, url):
video_id = self._match_id(url)
xml_url = 'http://www.zdf.de/ZDFmediathek/xmlservice/web/beitragsDetails?ak=web&id=%s' % video_id xml_url = 'http://www.zdf.de/ZDFmediathek/xmlservice/web/beitragsDetails?ak=web&id=%s' % video_id
return extract_from_xml_url(self, video_id, xml_url) return extract_from_xml_url(self, video_id, xml_url)
def _real_extract(self, url):
return self._extract_video(self._match_id(url))
class ZDFChannelIE(ZDFIE):
_VALID_URL = r'^https?://www\.zdf\.de/ZDFmediathek(?P<hash>#)?/(.*kanaluebersicht/)(?P<id>[0-9]+)'
class ZDFChannelIE(InfoExtractor):
_VALID_URL = r'(?:zdf:topic:|https?://www\.zdf\.de/ZDFmediathek(?:#)?/.*kanaluebersicht/)(?P<id>[0-9]+)'
_TEST = { _TEST = {
'url': 'http://www.zdf.de/ZDFmediathek#/kanaluebersicht/1586442/sendung/Titanic', 'url': 'http://www.zdf.de/ZDFmediathek#/kanaluebersicht/1586442/sendung/Titanic',
'info_dict': { 'info_dict': {
'id': '1586442', 'id': '1586442',
'title': 'Titanic',
'description': 'md5:444c048cfe3fdc2561be7de4bcbf1d04',
}, },
'playlist_count': 3, 'playlist_count': 4,
} }
_PAGE_SIZE = 50
def _extract_channel(self, channel_id): def _fetch_page(self, channel_id, page):
def load_chunks(channel_id, chunk_length): offset = page * self._PAGE_SIZE
offset = 0 xml_url = (
while True: 'http://www.zdf.de/ZDFmediathek/xmlservice/web/aktuellste?ak=web&offset=%d&maxLength=%d&id=%s'
url = ('http://www.zdf.de/ZDFmediathek/xmlservice/web/aktuellste?ak=web&offset=%d&maxLength=%d&id=%s' % (offset, self._PAGE_SIZE, channel_id))
% (offset, chunk_length, channel_id)) doc = self._download_xml(
result = extract_channel_from_xml_url(self, channel_id, url) xml_url, channel_id,
yield result note='Downloading channel info',
if len(result['assets']) < chunk_length: errnote='Failed to download channel info')
return
offset += chunk_length
def load_channel(channel_id): title = doc.find('.//information/title').text
chunks = list(load_chunks(channel_id, 50)) # The server rejects higher values description = doc.find('.//information/detail').text
assets = [asset for chunk in chunks for asset in chunk['assets']] for asset in doc.findall('.//teasers/teaser'):
video_ids = [asset['id'] for asset in a_type = asset.find('./type').text
filter(lambda asset: asset['type'] == 'video', a_id = asset.find('./details/assetId').text
assets)] if a_type not in ('video', 'topic'):
topic_ids = [asset['id'] for asset in continue
filter(lambda asset: asset['type'] == 'thema', yield {
assets)] '_type': 'url',
if topic_ids: 'playlist_title': title,
video_ids = reduce(list.__add__, 'playlist_description': description,
[load_channel(topic_id)['video_ids'] 'url': 'zdf:%s:%s' % (a_type, a_id),
for topic_id in topic_ids], }
video_ids)
result = chunks[0]
result['video_ids'] = video_ids
return result
channel = load_channel(channel_id)
return {
'_type': 'playlist',
'id': channel['id'],
'title': channel['title'],
'description': channel['description'],
'entries': [self._extract_video(video_id)
for video_id in channel['video_ids']],
}
def _real_extract(self, url): def _real_extract(self, url):
return self._extract_channel(self._match_id(url)) channel_id = self._match_id(url)
entries = OnDemandPagedList(
functools.partial(self._fetch_page, channel_id), self._PAGE_SIZE)
return {
'_type': 'playlist',
'id': channel_id,
'entries': entries,
}