[rai] Improve extraction (closes #11790)

* Fix georestriction detection
* Detect live streams
+ Extract relinker metadata
* Improve ContentItem detection
+ Extract series metadata
* Fix tests

youtube_dl/extractor/rai.py

@@ -1,23 +1,40 @@
 from __future__ import unicode_literals
 
+import re
+
 from .common import InfoExtractor
-from ..compat import compat_urlparse
+from ..compat import (
+    compat_urlparse,
+    compat_str,
+)
 from ..utils import (
     ExtractorError,
     determine_ext,
     find_xpath_attr,
     fix_xml_ampersands,
+    GeoRestrictedError,
     int_or_none,
     parse_duration,
+    strip_or_none,
+    try_get,
     unified_strdate,
+    unified_timestamp,
     update_url_query,
+    urljoin,
     xpath_text,
 )
 
 
 class RaiBaseIE(InfoExtractor):
-    def _extract_relinker_formats(self, relinker_url, video_id):
+    _UUID_RE = r'[\da-f]{8}-[\da-f]{4}-[\da-f]{4}-[\da-f]{4}-[\da-f]{12}'
+    _GEO_COUNTRIES = ['IT']
+    _GEO_BYPASS = False
+
+    def _extract_relinker_info(self, relinker_url, video_id):
         formats = []
+        geoprotection = None
+        is_live = None
+        duration = None
 
         for platform in ('mon', 'flash', 'native'):
             relinker = self._download_xml(
@@ -27,9 +44,27 @@ class RaiBaseIE(InfoExtractor):
                 query={'output': 45, 'pl': platform},
                 headers=self.geo_verification_headers())
 
-            media_url = find_xpath_attr(relinker, './url', 'type', 'content').text
+            if not geoprotection:
+                geoprotection = xpath_text(
+                    relinker, './geoprotection', default=None) == 'Y'
+
+            if not is_live:
+                is_live = xpath_text(
+                    relinker, './is_live', default=None) == 'Y'
+            if not duration:
+                duration = parse_duration(xpath_text(
+                    relinker, './duration', default=None))
+
+            url_elem = find_xpath_attr(relinker, './url', 'type', 'content')
+            if url_elem is None:
+                continue
+
+            media_url = url_elem.text
+
+            # This does not imply geo restriction (e.g.
+            # http://www.raisport.rai.it/dl/raiSport/media/rassegna-stampa-04a9f4bd-b563-40cf-82a6-aad3529cb4a9.html)
             if media_url == 'http://download.rai.it/video_no_available.mp4':
-                self.raise_geo_restricted()
+                continue
 
             ext = determine_ext(media_url)
             if (ext == 'm3u8' and platform != 'mon') or (ext == 'f4m' and platform != 'flash'):
@@ -53,11 +88,18 @@ class RaiBaseIE(InfoExtractor):
                     'format_id': 'http-%d' % bitrate if bitrate > 0 else 'http',
                 })
 
-        return formats
+        if not formats and geoprotection is True:
+            self.raise_geo_restricted(countries=self._GEO_COUNTRIES)
+
+        return dict((k, v) for k, v in {
+            'is_live': is_live,
+            'duration': duration,
+            'formats': formats,
+        }.items() if v is not None)
 
 
 class RaiPlayIE(RaiBaseIE):
-    _VALID_URL = r'https?://(?:www\.)?raiplay\.it/.+?-(?P<id>[\da-f]{8}-[\da-f]{4}-[\da-f]{4}-[\da-f]{4}-[\da-f]{12})\.html'
+    _VALID_URL = r'(?P<url>https?://(?:www\.)?raiplay\.it/.+?-(?P<id>%s)\.html)' % RaiBaseIE._UUID_RE
     _TESTS = [{
         'url': 'http://www.raiplay.it/video/2016/10/La-Casa-Bianca-e06118bb-59a9-4636-b914-498e4cfd2c66.html?source=twitter',
         'md5': '340aa3b7afb54bfd14a8c11786450d76',
@@ -65,110 +107,130 @@ class RaiPlayIE(RaiBaseIE):
             'id': 'e06118bb-59a9-4636-b914-498e4cfd2c66',
             'ext': 'mp4',
             'title': 'La Casa Bianca',
+            'alt_title': 'S2016 - Puntata del 23/10/2016',
+            'description': 'md5:a09d45890850458077d1f68bb036e0a5',
             'thumbnail': r're:^https?://.*\.jpg$',
-            'uploader': r're:^Rai.+',
+            'uploader': 'Rai 3',
-            'description': 're:^[A-Za-z]+'
+            'creator': 'Rai 3',
-        }
+            'duration': 3278,
-    }, {
+            'timestamp': 1477764300,
-        'url': 'http://www.raiplay.it/video/2016/11/gazebotraindesi-efebe701-969c-4593-92f3-285f0d1ce750.html?',
+            'upload_date': '20161029',
-        'md5': 'ed4da3d70ccf8129a33ab16b34d20ab8',
+            'series': 'La Casa Bianca',
-        'info_dict': {
+            'season': '2016',
-            'id': 'efebe701-969c-4593-92f3-285f0d1ce750',
+        },
-            'ext': 'mp4',
-            'title': 'Gazebo - #gazebotraindesi',
-            'thumbnail': r're:^https?://.*\.png$',
-            'uploader': r're:^Rai.+',
-            'description': r're:^[A-Za-z]+'
-        }
     }, {
         'url': 'http://www.raiplay.it/video/2014/04/Report-del-07042014-cb27157f-9dd0-4aee-b788-b1f67643a391.html',
         'md5': '8970abf8caf8aef4696e7b1f2adfc696',
         'info_dict': {
             'id': 'cb27157f-9dd0-4aee-b788-b1f67643a391',
             'ext': 'mp4',
-            'title': 'Report - Report del 07/04/2014',
+            'title': 'Report del 07/04/2014',
+            'alt_title': 'S2013/14 - Puntata del 07/04/2014',
+            'description': 'md5:f27c544694cacb46a078db84ec35d2d9',
             'thumbnail': r're:^https?://.*\.jpg$',
-            'uploader': r're:^Rai.+',
+            'uploader': 'Rai 5',
-            'description': r're:^[A-Za-z]+'
+            'creator': 'Rai 5',
-        }
+            'duration': 6160,
+            'series': 'Report',
+            'season_number': 5,
+            'season': '2013/14',
+        },
+        'params': {
+            'skip_download': True,
+        },
+    }, {
+        'url': 'http://www.raiplay.it/video/2016/11/gazebotraindesi-efebe701-969c-4593-92f3-285f0d1ce750.html?',
+        'only_matching': True,
     }]
-    _RESOLUTION = '600x400'
 
     def _real_extract(self, url):
-        video_id = self._match_id(url)
+        mobj = re.match(self._VALID_URL, url)
+        url, video_id = mobj.group('url', 'id')
 
-        # remove query and fragment part from url
+        media = self._download_json(
-        canonical_url = compat_urlparse.urljoin(url, compat_urlparse.urlparse(url).path)
+            '%s?json' % url, video_id, 'Downloading video JSON')
-        webpage = self._download_webpage(canonical_url, video_id)
 
-        media = self._download_json('%s?json' % canonical_url,
+        title = media['name']
-                                    video_id, 'Downloading video JSON')
+
+        video = media['video']
+
+        relinker_info = self._extract_relinker_info(video['contentUrl'], video_id)
+        self._sort_formats(relinker_info['formats'])
 
         thumbnails = []
         if 'images' in media:
             for _, value in media.get('images').items():
                 if value:
                     thumbnails.append({
-                        'url': value.replace('[RESOLUTION]', self._RESOLUTION)
+                        'url': value.replace('[RESOLUTION]', '600x400')
                     })
 
-        if 'video' not in media:
+        timestamp = unified_timestamp(try_get(
-            raise ExtractorError('No video found')
+            media, lambda x: x['availabilities'][0]['start'], compat_str))
 
-        video = media.get('video')
+        info = {
-        duration = parse_duration(video.get('duration')),
-        formats = self._extract_relinker_formats(video.get('contentUrl'), video_id)
-        self._sort_formats(formats)
-
-        return {
             'id': video_id,
-            'title': self._og_search_title(webpage).replace(' - video - RaiPlay', ''),
+            'title': title,
-            'description': self._og_search_description(webpage),
+            'alt_title': media.get('subtitle'),
+            'description': media.get('description'),
             'uploader': media.get('channel'),
-            'duration': duration,
+            'creator': media.get('editor'),
+            'duration': parse_duration(video.get('duration')),
+            'timestamp': timestamp,
             'thumbnails': thumbnails,
-            'formats': formats
+            'series': try_get(
+                media, lambda x: x['isPartOf']['name'], compat_str),
+            'season_number': int_or_none(try_get(
+                media, lambda x: x['isPartOf']['numeroStagioni'])),
+            'season': media.get('stagione') or None,
         }
 
+        info.update(relinker_info)
+
+        return info
+
 
 class RaiIE(RaiBaseIE):
-    _VALID_URL = r'https?://.+\.(?:rai|rainews)\.it/dl/.+?-(?P<id>[\da-f]{8}-[\da-f]{4}-[\da-f]{4}-[\da-f]{4}-[\da-f]{12})(?:-.+?)?\.html'
+    _VALID_URL = r'https?://[^/]+\.(?:rai\.(?:it|tv)|rainews\.it)/dl/.+?-(?P<id>%s)(?:-.+?)?\.html' % RaiBaseIE._UUID_RE
     _TESTS = [{
-        # subdomain test case
+        # var uniquename = "ContentItem-..."
+        # data-id="ContentItem-..."
         'url': 'http://www.raisport.rai.it/dl/raiSport/media/rassegna-stampa-04a9f4bd-b563-40cf-82a6-aad3529cb4a9.html',
         'info_dict': {
             'id': '04a9f4bd-b563-40cf-82a6-aad3529cb4a9',
             'ext': 'mp4',
             'title': 'TG PRIMO TEMPO',
-            'upload_date': '20140612',
+            'thumbnail': r're:^https?://.*\.jpg$',
             'duration': 1758,
-            'thumbnail': r're:^https?://.*\.jpg$'
+            'upload_date': '20140612',
         }
     }, {
-        # rainews test case
+        # with ContentItem in many metas
         'url': 'http://www.rainews.it/dl/rainews/media/Weekend-al-cinema-da-Hollywood-arriva-il-thriller-di-Tate-Taylor-La-ragazza-del-treno-1632c009-c843-4836-bb65-80c33084a64b.html',
         'info_dict': {
             'id': '1632c009-c843-4836-bb65-80c33084a64b',
             'ext': 'mp4',
-            'title': 'Weekend al cinema, da Hollywood arriva il thriller di Tate Taylor \"La ragazza del treno\" ',
+            'title': 'Weekend al cinema, da Hollywood arriva il thriller di Tate Taylor "La ragazza del treno"',
-            'upload_date': '20161103',
+            'description': 'I film in uscita questa settimana.',
             'thumbnail': r're:^https?://.*\.png$',
-            'description': r're:^[A-Za-z]+'
+            'duration': 833,
+            'upload_date': '20161103',
         }
     }, {
-        # with media information
+        # with ContentItem in og:url
         'url': 'http://www.rai.it/dl/RaiTV/programmi/media/ContentItem-efb17665-691c-45d5-a60c-5301333cbb0c.html',
         'md5': '11959b4e44fa74de47011b5799490adf',
         'info_dict': {
             'id': 'efb17665-691c-45d5-a60c-5301333cbb0c',
             'ext': 'mp4',
             'title': 'TG1 ore 20:00 del 03/11/2016',
+            'description': 'TG1 edizione integrale ore 20:00 del giorno 03/11/2016',
             'thumbnail': r're:^https?://.*\.jpg$',
+            'duration': 2214,
             'upload_date': '20161103',
-            'description': r're:^[A-Za-z]+'
         }
     }, {
-        # drawMediaRaiTV test case
+        # drawMediaRaiTV(...)
         'url': 'http://www.report.rai.it/dl/Report/puntata/ContentItem-0c7a664b-d0f4-4b2c-8835-3f82e46f433e.html',
         'md5': '2dd727e61114e1ee9c47f0da6914e178',
         'info_dict': {
@@ -176,83 +238,67 @@ class RaiIE(RaiBaseIE):
             'ext': 'mp4',
             'title': 'Il pacco',
             'description': 'md5:4b1afae1364115ce5d78ed83cd2e5b3a',
+            'thumbnail': r're:^https?://.*\.jpg$',
             'upload_date': '20141221',
         },
     }, {
-        # Direct relinker URL
+        # initEdizione('ContentItem-...'
+        'url': 'http://www.tg1.rai.it/dl/tg1/2010/edizioni/ContentSet-9b6e0cba-4bef-4aef-8cf0-9f7f665b7dfb-tg1.html?item=undefined',
+        'info_dict': {
+            'id': 'c2187016-8484-4e3a-8ac8-35e475b07303',
+            'ext': 'mp4',
+            'title': r're:TG1 ore \d{2}:\d{2} del \d{2}/\d{2}/\d{4}',
+            'duration': 2274,
+            'upload_date': '20170401',
+        },
+        'skip': 'Changes daily',
+    }, {
+        # HDS live stream with only relinker URL
         'url': 'http://www.rai.tv/dl/RaiTV/dirette/PublishingBlock-1912dbbf-3f96-44c3-b4cf-523681fbacbc.html?channel=EuroNews',
-        # HDS live stream, MD5 is unstable
         'info_dict': {
             'id': '1912dbbf-3f96-44c3-b4cf-523681fbacbc',
             'ext': 'flv',
             'title': 'EuroNews',
         },
-    }, {
+        'params': {
-        # Embedded content item ID
+            'skip_download': True,
-        'url': 'http://www.tg1.rai.it/dl/tg1/2010/edizioni/ContentSet-9b6e0cba-4bef-4aef-8cf0-9f7f665b7dfb-tg1.html?item=undefined',
-        'info_dict': {
-            'id': 'd80d4b70-3812-4501-a888-92edec729f00',
-            'ext': 'mp4',
-            'title': r're:TG1 ore \d{2}:\d{2} del \d{2}/\d{2}/\d{4}',
-            'upload_date': r're:\d{8}',
-            'description': r're:.+',
         },
     }, {
+        # HLS live stream with ContentItem in og:url
         'url': 'http://www.rainews.it/dl/rainews/live/ContentItem-3156f2f2-dc70-4953-8e2f-70d7489d4ce9.html',
-        # HDS live stream, MD5 is unstable
         'info_dict': {
             'id': '3156f2f2-dc70-4953-8e2f-70d7489d4ce9',
             'ext': 'mp4',
             'title': 'La diretta di Rainews24',
         },
+        'params': {
+            'skip_download': True,
+        },
     }]
 
-    def _real_extract(self, url):
-        video_id = self._match_id(url)
-        webpage = self._download_webpage(url, video_id)
-
-        iframe_url = self._search_regex(
-            [r'<iframe[^>]+src="([^"]*/dl/[^"]+\?iframe\b[^"]*)"',
-             r'drawMediaRaiTV\(["\'](.+?)["\']'],
-            webpage, 'iframe', default=None)
-        if iframe_url:
-            if not iframe_url.startswith('http'):
-                iframe_url = compat_urlparse.urljoin(url, iframe_url)
-            return self.url_result(iframe_url)
-
-        content_item_id = self._search_regex(
-            r'initEdizione\((?P<q1>[\'"])ContentItem-(?P<content_id>[^\'"]+)(?P=q1)',
-            webpage, 'content item ID', group='content_id', default=None)
-        if content_item_id:
-            return self._extract_from_content_id(content_item_id, url)
-
-        try:
-            return self._extract_from_content_id(video_id, url)
-        except ExtractorError:
-            # no media data, only direct relinker
-            pass
-
-        relinker_url = compat_urlparse.urljoin(url, self._search_regex(
-            r'(?:var\s+videoURL|mediaInfo\.mediaUri)\s*=\s*(?P<q1>[\'"])(?P<url>(https?:)?//mediapolis\.rai\.it/relinker/relinkerServlet\.htm\?cont=\d+)(?P=q1)',
-            webpage, 'relinker URL', group='url'))
-        formats = self._extract_relinker_formats(relinker_url, video_id)
-        self._sort_formats(formats)
-
-        title = self._search_regex(
-            r'var\s+videoTitolo\s*=\s*([\'"])(?P<title>[^\'"]+)\1',
-            webpage, 'title', group='title', default=None) or self._og_search_title(webpage)
-
-        return {
-            'id': video_id,
-            'title': title,
-            'formats': formats,
-        }
-
     def _extract_from_content_id(self, content_id, url):
         media = self._download_json(
             'http://www.rai.tv/dl/RaiTV/programmi/media/ContentItem-%s.html?json' % content_id,
             content_id, 'Downloading video JSON')
 
+        title = media['name'].strip()
+
+        media_type = media['type']
+        if 'Audio' in media_type:
+            relinker_info = {
+                'formats': {
+                    'format_id': media.get('formatoAudio'),
+                    'url': media['audioUrl'],
+                    'ext': media.get('formatoAudio'),
+                }
+            }
+        elif 'Video' in media_type:
+            relinker_info = self._extract_relinker_info(media['mediaUri'], content_id)
+        else:
+            raise ExtractorError('not a media file')
+
+        self._sort_formats(relinker_info['formats'])
+
         thumbnails = []
         for image_type in ('image', 'image_medium', 'image_300'):
             thumbnail_url = media.get(image_type)
@@ -261,20 +307,6 @@ class RaiIE(RaiBaseIE):
                     'url': compat_urlparse.urljoin(url, thumbnail_url),
                 })
 
-        formats = []
-        media_type = media['type']
-        if 'Audio' in media_type:
-            formats.append({
-                'format_id': media.get('formatoAudio'),
-                'url': media['audioUrl'],
-                'ext': media.get('formatoAudio'),
-            })
-        elif 'Video' in media_type:
-            formats.extend(self._extract_relinker_formats(media['mediaUri'], content_id))
-            self._sort_formats(formats)
-        else:
-            raise ExtractorError('not a media file')
-
         subtitles = {}
         captions = media.get('subtitlesUrl')
         if captions:
@@ -287,14 +319,89 @@ class RaiIE(RaiBaseIE):
                 'url': captions,
             }]
 
-        return {
+        info = {
             'id': content_id,
-            'title': media['name'],
+            'title': title,
-            'description': media.get('desc'),
+            'description': strip_or_none(media.get('desc')),
             'thumbnails': thumbnails,
             'uploader': media.get('author'),
             'upload_date': unified_strdate(media.get('date')),
             'duration': parse_duration(media.get('length')),
-            'formats': formats,
             'subtitles': subtitles,
         }
+
+        info.update(relinker_info)
+
+        return info
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+
+        webpage = self._download_webpage(url, video_id)
+
+        content_item_id = None
+
+        content_item_url = self._html_search_meta(
+            ('og:url', 'og:video', 'og:video:secure_url', 'twitter:url',
+             'twitter:player', 'jsonlink'), webpage, default=None)
+        if content_item_url:
+            content_item_id = self._search_regex(
+                r'ContentItem-(%s)' % self._UUID_RE, content_item_url,
+                'content item id', default=None)
+
+        if not content_item_id:
+            content_item_id = self._search_regex(
+                r'''(?x)
+                    (?:
+                        (?:initEdizione|drawMediaRaiTV)\(|
+                        <(?:[^>]+\bdata-id|var\s+uniquename)=
+                    )
+                    (["\'])
+                    (?:(?!\1).)*\bContentItem-(?P<id>%s)
+                ''' % self._UUID_RE,
+                webpage, 'content item id', default=None, group='id')
+
+        content_item_ids = set()
+        content_item_ids.add(content_item_id)
+        if video_id not in content_item_ids:
+            content_item_ids.add(video_id)
+
+        for content_item_id in content_item_ids:
+            try:
+                return self._extract_from_content_id(content_item_id, url)
+            except GeoRestrictedError:
+                raise
+            except ExtractorError:
+                pass
+
+        relinker_url = self._search_regex(
+            r'''(?x)
+                (?:
+                    var\s+videoURL|
+                    mediaInfo\.mediaUri
+                )\s*=\s*
+                ([\'"])
+                (?P<url>
+                    (?:https?:)?
+                    //mediapolis(?:vod)?\.rai\.it/relinker/relinkerServlet\.htm\?
+                    (?:(?!\1).)*\bcont=(?:(?!\1).)+)\1
+            ''',
+            webpage, 'relinker URL', group='url')
+
+        relinker_info = self._extract_relinker_info(
+            urljoin(url, relinker_url), video_id)
+        self._sort_formats(relinker_info['formats'])
+
+        title = self._search_regex(
+            r'var\s+videoTitolo\s*=\s*([\'"])(?P<title>[^\'"]+)\1',
+            webpage, 'title', group='title',
+            default=None) or self._og_search_title(webpage)
+
+        info = {
+            'id': video_id,
+            'title': title,
+        }
+
+        info.update(relinker_info)
+
+        return info