Merge branch 'master' into subtitles_rework
[youtube-dl] / youtube_dl / extractor / youtube.py
index 98a44f333180f003c3f9528597b1a67da1a1525d..e71cd62ec3d43e2b541a7e024c6a02adbe16a355 100644 (file)
@@ -7,6 +7,7 @@ import socket
 import itertools
 
 from .common import InfoExtractor, SearchInfoExtractor
+from .subtitles import SubtitlesIE
 from ..utils import (
     compat_http_client,
     compat_parse_qs,
@@ -130,7 +131,65 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
             return
         self._confirm_age()
 
-class YoutubeIE(YoutubeBaseInfoExtractor):
+class YoutubeSubtitlesIE(SubtitlesIE):
+
+    def _get_available_subtitles(self, video_id):
+        request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
+        try:
+            sub_list = compat_urllib_request.urlopen(request).read().decode('utf-8')
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.report_warning(u'unable to download video subtitles: %s' % compat_str(err))
+            return {}
+        lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
+
+        sub_lang_list = {}
+        for l in lang_list:
+            lang = l[1]
+            params = compat_urllib_parse.urlencode({
+                'lang': lang,
+                'v': video_id,
+                'fmt': self._downloader.params.get('subtitlesformat'),
+            })
+            url = u'http://www.youtube.com/api/timedtext?' + params
+            sub_lang_list[lang] = url
+        if not sub_lang_list:
+            self._downloader.report_warning(u'video doesn\'t have subtitles')
+            return {}
+        return sub_lang_list
+
+    def _request_automatic_caption(self, video_id, webpage):
+        """We need the webpage for getting the captions url, pass it as an
+           argument to speed up the process."""
+        sub_lang = (self._downloader.params.get('subtitleslangs') or ['en'])[0]
+        sub_format = self._downloader.params.get('subtitlesformat')
+        self.to_screen(u'%s: Looking for automatic captions' % video_id)
+        mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
+        err_msg = u'Couldn\'t find automatic captions for "%s"' % sub_lang
+        if mobj is None:
+            self._downloader.report_warning(err_msg)
+            return {}
+        player_config = json.loads(mobj.group(1))
+        try:
+            args = player_config[u'args']
+            caption_url = args[u'ttsurl']
+            timestamp = args[u'timestamp']
+            params = compat_urllib_parse.urlencode({
+                'lang': 'en',
+                'tlang': sub_lang,
+                'fmt': sub_format,
+                'ts': timestamp,
+                'kind': 'asr',
+            })
+            subtitles_url = caption_url + '&' + params
+            sub = self._download_webpage(subtitles_url, video_id, u'Downloading automatic captions')
+            return {sub_lang: sub}
+        # An extractor error can be raise by the download process if there are
+        # no automatic captions but there are subtitles
+        except (KeyError, ExtractorError):
+            self._downloader.report_warning(err_msg)
+            return {}
+
+class YoutubeIE(YoutubeSubtitlesIE, YoutubeBaseInfoExtractor):
     IE_DESC = u'YouTube.com'
     _VALID_URL = r"""^
                      (
@@ -150,7 +209,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                          |youtu\.be/                                          # just youtu.be/xxxx
                          )
                      )?                                                       # all until now is optional -> you can pass the naked ID
-                     ([0-9A-Za-z_-]+)                                         # here is it! the YouTube video ID
+                     ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID
                      (?(1).+)?                                                # if we found the ID, everything can follow
                      $"""
     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
@@ -386,7 +445,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
     @classmethod
     def suitable(cls, url):
         """Receives a URL and returns True if suitable for this IE."""
-        if YoutubePlaylistIE.suitable(url) or YoutubeSubscriptionsIE.suitable(url): return False
+        if YoutubePlaylistIE.suitable(url): return False
         return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
 
     def report_video_webpage_download(self, video_id):
@@ -397,19 +456,6 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         """Report attempt to download video info webpage."""
         self.to_screen(u'%s: Downloading video info webpage' % video_id)
 
-    def report_video_subtitles_download(self, video_id):
-        """Report attempt to download video info webpage."""
-        self.to_screen(u'%s: Checking available subtitles' % video_id)
-
-    def report_video_subtitles_request(self, video_id, sub_lang, format):
-        """Report attempt to download video info webpage."""
-        self.to_screen(u'%s: Downloading video subtitles for %s.%s' % (video_id, sub_lang, format))
-
-    def report_video_subtitles_available(self, video_id, sub_lang_list):
-        """Report available subtitles."""
-        sub_lang = ",".join(list(sub_lang_list.keys()))
-        self.to_screen(u'%s: Available subtitles for video: %s' % (video_id, sub_lang))
-
     def report_information_extraction(self, video_id):
         """Report attempt to extract video information."""
         self.to_screen(u'%s: Extracting video information' % video_id)
@@ -438,7 +484,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         elif len(s) == 86:
             return s[5:34] + s[0] + s[35:38] + s[3] + s[39:45] + s[38] + s[46:53] + s[73] + s[54:73] + s[85] + s[74:85] + s[53]
         elif len(s) == 85:
-            return s[83:34:-1] + s[0] + s[33:27:-1] + s[3] + s[26:19:-1] + s[34] + s[18:3:-1] + s[27]
+            return s[40] + s[82:43:-1] + s[22] + s[42:40:-1] + s[83] + s[39:22:-1] + s[0] + s[21:2:-1]
         elif len(s) == 84:
             return s[81:36:-1] + s[0] + s[35:2:-1]
         elif len(s) == 83:
@@ -464,112 +510,6 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             # Fallback to the other algortihms
             return self._decrypt_signature(s)
 
-
-    def _get_available_subtitles(self, video_id):
-        self.report_video_subtitles_download(video_id)
-        request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
-        try:
-            sub_list = compat_urllib_request.urlopen(request).read().decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_warning(u'unable to download video subtitles: %s' % compat_str(err))
-            return {}
-        sub_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
-        sub_lang_list = dict((l[1], l[0]) for l in sub_lang_list)
-        if not sub_lang_list:
-            self._downloader.report_warning(u'video doesn\'t have subtitles')
-            return {}
-        return sub_lang_list
-
-    def _list_available_subtitles(self, video_id):
-        sub_lang_list = self._get_available_subtitles(video_id)
-        self.report_video_subtitles_available(video_id, sub_lang_list)
-
-    def _request_subtitle(self, sub_lang, sub_name, video_id, format):
-        """
-        Return the subtitle as a string or None if they are not found
-        """
-        self.report_video_subtitles_request(video_id, sub_lang, format)
-        params = compat_urllib_parse.urlencode({
-            'lang': sub_lang,
-            'name': sub_name,
-            'v': video_id,
-            'fmt': format,
-        })
-        url = 'http://www.youtube.com/api/timedtext?' + params
-        try:
-            sub = compat_urllib_request.urlopen(url).read().decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_warning(u'unable to download video subtitles for %s: %s' % (sub_lang, compat_str(err)))
-            return
-        if not sub:
-            self._downloader.report_warning(u'Did not fetch video subtitles')
-            return
-        return sub
-
-    def _request_automatic_caption(self, video_id, webpage):
-        """We need the webpage for getting the captions url, pass it as an
-           argument to speed up the process."""
-        sub_lang = (self._downloader.params.get('subtitleslangs') or ['en'])[0]
-        sub_format = self._downloader.params.get('subtitlesformat')
-        self.to_screen(u'%s: Looking for automatic captions' % video_id)
-        mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
-        err_msg = u'Couldn\'t find automatic captions for "%s"' % sub_lang
-        if mobj is None:
-            self._downloader.report_warning(err_msg)
-            return {}
-        player_config = json.loads(mobj.group(1))
-        try:
-            args = player_config[u'args']
-            caption_url = args[u'ttsurl']
-            timestamp = args[u'timestamp']
-            params = compat_urllib_parse.urlencode({
-                'lang': 'en',
-                'tlang': sub_lang,
-                'fmt': sub_format,
-                'ts': timestamp,
-                'kind': 'asr',
-            })
-            subtitles_url = caption_url + '&' + params
-            sub = self._download_webpage(subtitles_url, video_id, u'Downloading automatic captions')
-            return {sub_lang: sub}
-        # An extractor error can be raise by the download process if there are
-        # no automatic captions but there are subtitles
-        except (KeyError, ExtractorError):
-            self._downloader.report_warning(err_msg)
-            return {}
-    
-    def _extract_subtitles(self, video_id):
-        """
-        Return a dictionary: {language: subtitles} or {} if the subtitles
-        couldn't be found
-        """
-        available_subs_list = self._get_available_subtitles(video_id)
-        sub_format = self._downloader.params.get('subtitlesformat')
-        if  not available_subs_list: #There was some error, it didn't get the available subtitles
-            return {}
-        if self._downloader.params.get('allsubtitles', False):
-            sub_lang_list = available_subs_list
-        else:
-            if self._downloader.params.get('subtitleslangs', False):
-                reqested_langs = self._downloader.params.get('subtitleslangs')
-            elif 'en' in available_subs_list:
-                reqested_langs = ['en']
-            else:
-                reqested_langs = [list(available_subs_list.keys())[0]]
-
-            sub_lang_list = {}
-            for sub_lang in reqested_langs:
-                if not sub_lang in available_subs_list:
-                    self._downloader.report_warning(u'no closed captions found in the specified language "%s"' % sub_lang)
-                    continue
-                sub_lang_list[sub_lang] = available_subs_list[sub_lang]
-        subtitles = {}
-        for sub_lang in sub_lang_list:
-            subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
-            if subtitle:
-                subtitles[sub_lang] = subtitle
-        return subtitles
-
     def _print_formats(self, formats):
         print('Available formats:')
         for x in formats:
@@ -643,7 +583,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         manifest = self._download_webpage(manifest_url, video_id, u'Downloading formats manifest')
         formats_urls = _get_urls(manifest)
         for format_url in formats_urls:
-            itag = self._search_regex(r'itag%3D(\d+?)/', format_url, 'itag')
+            itag = self._search_regex(r'itag/(\d+?)/', format_url, 'itag')
             url_map[itag] = format_url
         return url_map
 
@@ -1015,14 +955,18 @@ class YoutubeChannelIE(InfoExtractor):
 
 class YoutubeUserIE(InfoExtractor):
     IE_DESC = u'YouTube.com user videos (URL or "ytuser" keyword)'
-    _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:user/)?)|ytuser:)([A-Za-z0-9_-]+)'
+    _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:user/)?)|ytuser:)(?!feed/)([A-Za-z0-9_-]+)'
     _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
     _GDATA_PAGE_SIZE = 50
     _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d&alt=json'
     IE_NAME = u'youtube:user'
 
+    @classmethod
     def suitable(cls, url):
-        if YoutubeIE.suitable(url): return False
+        # Don't return True if the url can be extracted with other youtube
+        # extractor, the regex would is too permissive and it would match.
+        other_ies = iter(klass for (name, klass) in globals().items() if name.endswith('IE') and klass is not cls)
+        if any(ie.suitable(url) for ie in other_ies): return False
         else: return super(YoutubeUserIE, cls).suitable(url)
 
     def _real_extract(self, url):