Add functional but preliminary channel tab support

Add channel tabs to the channel template and script
Update continuation token to request different tabs

Add support for 'reelItemRenderer' format required to extract shorts

youtube/channel.py

@@ -32,16 +32,23 @@ real_cookie = (('Cookie', 'VISITOR_INFO1_LIVE=8XihrAcN1l4'),)
 generic_cookie = (('Cookie', 'VISITOR_INFO1_LIVE=ST1Ti53r4fU'),)
 
 # added an extra nesting under the 2nd base64 compared to v4
+# added tab support
 def channel_ctoken_v5(channel_id, page, sort, tab, view=1):
     new_sort = (2 if int(sort) == 1 else 1)
     offset = str(30*(int(page) - 1))
+    if tab == 'videos':
+        tab = 15
+    elif tab == 'shorts':
+        tab = 10
+    elif tab == 'streams':
+        tab = 14
     pointless_nest = proto.string(80226972,
         proto.string(2, channel_id)
         + proto.string(3,
             proto.percent_b64encode(
                 proto.string(110,
                     proto.string(3,
-                        proto.string(15,
+                        proto.string(tab,
                             proto.string(1,
                                 proto.string(1,
                                     proto.unpadded_b64encode(
@@ -167,7 +174,7 @@ def channel_ctoken_v2(channel_id, page, sort, tab, view=1):
 
     tab = proto.string(2, tab)
     sort = proto.uint(3, int(sort))
-    # page = proto.string(15, str(page) )
+    #page = proto.string(15, str(page))
 
     shelf_view = proto.uint(4, 0)
     view = proto.uint(6, int(view))
@@ -202,7 +209,7 @@ def get_channel_tab(channel_id, page="1", sort=3, tab='videos', view=1,
     message = 'Got channel tab' if print_status else None
 
     if not ctoken:
-        if tab == 'videos':
+        if tab in ('videos', 'shorts', 'streams'):
             ctoken = channel_ctoken_v5(channel_id, page, sort, tab, view)
         else:
             ctoken = channel_ctoken_v3(channel_id, page, sort, tab, view)
@@ -349,11 +356,11 @@ def post_process_channel_info(info):
                 info['links'][i] = (text, util.prefix_url(url))
 
 
-def get_channel_first_page(base_url=None, channel_id=None):
+def get_channel_first_page(base_url=None, channel_id=None, tab='videos'):
     if channel_id:
         base_url = 'https://www.youtube.com/channel/' + channel_id
-    return util.fetch_url(base_url + '/videos?pbj=1&view=0', headers_desktop,
-                          debug_name='gen_channel_videos')
+    return util.fetch_url(base_url + '/' + tab + '?pbj=1&view=0',
+                          headers_desktop, debug_name='gen_channel_' + tab)
 
 
 playlist_sort_codes = {'2': "da", '3': "dd", '4': "lad"}
@@ -374,24 +381,25 @@ def get_channel_page_general_url(base_url, tab, request, channel_id=None):
     default_params = (page_number == 1 and sort == '3' and view == '1')
     continuation = bool(ctoken) # whether or not we're using a continuation
 
-    if tab == 'videos' and channel_id and not default_params:
+    if (tab in ('videos', 'shorts', 'streams') and channel_id and
+        not default_params):
         tasks = (
             gevent.spawn(get_number_of_videos_channel, channel_id),
             gevent.spawn(get_channel_tab, channel_id, page_number, sort,
-                         'videos', view, ctoken)
+                         tab, view, ctoken)
         )
         gevent.joinall(tasks)
         util.check_gevent_exceptions(*tasks)
         number_of_videos, polymer_json = tasks[0].value, tasks[1].value
         continuation = True
-    elif tab == 'videos':
+    elif tab in ('videos', 'shorts', 'streams'):
         if channel_id:
             num_videos_call = (get_number_of_videos_channel, channel_id)
         else:
             num_videos_call = (get_number_of_videos_general, base_url)
         tasks = (
             gevent.spawn(*num_videos_call),
-            gevent.spawn(get_channel_first_page, base_url=base_url),
+            gevent.spawn(get_channel_first_page, base_url=base_url, tab=tab),
         )
         gevent.joinall(tasks)
         util.check_gevent_exceptions(*tasks)
@@ -440,13 +448,13 @@ def get_channel_page_general_url(base_url, tab, request, channel_id=None):
             item.update(additional_info)
 
     if info['error'] is not None:
-        return flask.render_template('error.html', error_message=info['error'])
+        return flask.render_template('error.html', error_message = info['error'])
 
-    if tab == 'videos':
+    if tab in ('videos', 'shorts', 'streams'):
         info['number_of_videos'] = number_of_videos
         info['number_of_pages'] = math.ceil(number_of_videos/30)
         info['header_playlist_names'] = local_playlist.get_playlist_names()
-    if tab in ('videos', 'playlists'):
+    if tab in ('videos', 'shorts', 'streams', 'playlists'):
         info['current_sort'] = sort
     elif tab == 'search':
         info['search_box_value'] = query
@@ -457,9 +465,8 @@ def get_channel_page_general_url(base_url, tab, request, channel_id=None):
 
     post_process_channel_info(info)
 
-    return flask.render_template(
-        'channel.html',
-        parameters_dictionary=request.args,
+    return flask.render_template('channel.html',
+        parameters_dictionary = request.args,
         **info
     )