[dreisat] use extract_from_xml_url from ZDFIE for info extraction(fixes #7680)(fixes #8104)(closes #8121)

youtube_dl/extractor/dreisat.py

@@ -2,14 +2,10 @@
 
 import re
 
-from .common import InfoExtractor
-from ..utils import (
-    ExtractorError,
-    unified_strdate,
-)
+from .zdf import ZDFIE
 
 
-class DreiSatIE(InfoExtractor):
+class DreiSatIE(ZDFIE):
     IE_NAME = '3sat'
     _VALID_URL = r'(?:http://)?(?:www\.)?3sat\.de/mediathek/(?:index\.php|mediathek\.php)?\?(?:(?:mode|display)=[^&]+&)*obj=(?P<id>[0-9]+)$'
     _TESTS = [
@@ -35,53 +31,4 @@ def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         video_id = mobj.group('id')
         details_url = 'http://www.3sat.de/mediathek/xmlservice/web/beitragsDetails?ak=web&id=%s' % video_id
-        details_doc = self._download_xml(details_url, video_id, 'Downloading video details')
-
-        status_code = details_doc.find('./status/statuscode')
-        if status_code is not None and status_code.text != 'ok':
-            code = status_code.text
-            if code == 'notVisibleAnymore':
-                message = 'Video %s is not available' % video_id
-            else:
-                message = '%s returned error: %s' % (self.IE_NAME, code)
-            raise ExtractorError(message, expected=True)
-
-        thumbnail_els = details_doc.findall('.//teaserimage')
-        thumbnails = [{
-            'width': int(te.attrib['key'].partition('x')[0]),
-            'height': int(te.attrib['key'].partition('x')[2]),
-            'url': te.text,
-        } for te in thumbnail_els]
-
-        information_el = details_doc.find('.//information')
-        video_title = information_el.find('./title').text
-        video_description = information_el.find('./detail').text
-
-        details_el = details_doc.find('.//details')
-        video_uploader = details_el.find('./channel').text
-        upload_date = unified_strdate(details_el.find('./airtime').text)
-
-        format_els = details_doc.findall('.//formitaet')
-        formats = [{
-            'format_id': fe.attrib['basetype'],
-            'width': int(fe.find('./width').text),
-            'height': int(fe.find('./height').text),
-            'url': fe.find('./url').text,
-            'filesize': int(fe.find('./filesize').text),
-            'video_bitrate': int(fe.find('./videoBitrate').text),
-        } for fe in format_els
-            if not fe.find('./url').text.startswith('http://www.metafilegenerator.de/')]
-
-        self._sort_formats(formats)
-
-        return {
-            '_type': 'video',
-            'id': video_id,
-            'title': video_title,
-            'formats': formats,
-            'description': video_description,
-            'thumbnails': thumbnails,
-            'thumbnail': thumbnails[-1]['url'],
-            'uploader': video_uploader,
-            'upload_date': upload_date,
-        }
+        return self.extract_from_xml_url(video_id, details_url)