Channel: Render age restricted channels (#4295)

This PR:
 * gets thumbnail and channel name from the initial request
 * gets videos, shorts and streams via autogenerated channel playlists

Test Url: /channel/UCbfnHqxXs_K3kvaH-WlNlig

Closes issue 3513

src/invidious/channels/about.cr

@@ -15,7 +15,8 @@ record AboutChannel,
   allowed_regions : Array(String),
   tabs : Array(String),
   tags : Array(String),
-  verified : Bool
+  verified : Bool,
+  is_age_gated : Bool
 
 def get_about_info(ucid, locale) : AboutChannel
   begin
@@ -45,46 +46,102 @@ def get_about_info(ucid, locale) : AboutChannel
   end
 
   tags = [] of String
+  tab_names = [] of String
+  total_views = 0_i64
+  joined = Time.unix(0)
 
-  if auto_generated
-    author = initdata["header"]["interactiveTabbedHeaderRenderer"]["title"]["simpleText"].as_s
-    author_url = initdata["microformat"]["microformatDataRenderer"]["urlCanonical"].as_s
-    author_thumbnail = initdata["header"]["interactiveTabbedHeaderRenderer"]["boxArt"]["thumbnails"][0]["url"].as_s
-
-    # Raises a KeyError on failure.
-    banners = initdata["header"]["interactiveTabbedHeaderRenderer"]?.try &.["banner"]?.try &.["thumbnails"]?
-    banner = banners.try &.[-1]?.try &.["url"].as_s?
-
-    description_base_node = initdata["header"]["interactiveTabbedHeaderRenderer"]["description"]
-    # some channels have the description in a simpleText
-    # ex: https://www.youtube.com/channel/UCQvWX73GQygcwXOTSf_VDVg/
-    description_node = description_base_node.dig?("simpleText") || description_base_node
-
-    tags = initdata.dig?("header", "interactiveTabbedHeaderRenderer", "badges")
-      .try &.as_a.map(&.["metadataBadgeRenderer"]["label"].as_s) || [] of String
+  if ageGate = initdata.dig?("contents", "twoColumnBrowseResultsRenderer", "tabs", 0, "tabRenderer", "content", "sectionListRenderer", "contents", 0, "channelAgeGateRenderer")
+    description_node = nil
+    author = ageGate["channelTitle"].as_s
+    ucid = initdata.dig("responseContext", "serviceTrackingParams", 0, "params", 0, "value").as_s
+    author_url = "https://www.youtube.com/channel/#{ucid}"
+    author_thumbnail = ageGate.dig("avatar", "thumbnails", 0, "url").as_s
+    banner = nil
+    is_family_friendly = false
+    is_age_gated = true
+    tab_names = ["videos", "shorts", "streams"]
+    auto_generated = false
   else
-    author = initdata["metadata"]["channelMetadataRenderer"]["title"].as_s
-    author_url = initdata["metadata"]["channelMetadataRenderer"]["channelUrl"].as_s
-    author_thumbnail = initdata["metadata"]["channelMetadataRenderer"]["avatar"]["thumbnails"][0]["url"].as_s
-    author_verified = has_verified_badge?(initdata.dig?("header", "c4TabbedHeaderRenderer", "badges"))
+    if auto_generated
+      author = initdata["header"]["interactiveTabbedHeaderRenderer"]["title"]["simpleText"].as_s
+      author_url = initdata["microformat"]["microformatDataRenderer"]["urlCanonical"].as_s
+      author_thumbnail = initdata["header"]["interactiveTabbedHeaderRenderer"]["boxArt"]["thumbnails"][0]["url"].as_s
 
-    ucid = initdata["metadata"]["channelMetadataRenderer"]["externalId"].as_s
+      # Raises a KeyError on failure.
+      banners = initdata["header"]["interactiveTabbedHeaderRenderer"]?.try &.["banner"]?.try &.["thumbnails"]?
+      banner = banners.try &.[-1]?.try &.["url"].as_s?
 
-    # Raises a KeyError on failure.
-    banners = initdata["header"]["c4TabbedHeaderRenderer"]?.try &.["banner"]?.try &.["thumbnails"]?
-    banners ||= initdata.dig?("header", "pageHeaderRenderer", "content", "pageHeaderViewModel", "banner", "imageBannerViewModel", "image", "sources")
-    banner = banners.try &.[-1]?.try &.["url"].as_s?
+      description_base_node = initdata["header"]["interactiveTabbedHeaderRenderer"]["description"]
+      # some channels have the description in a simpleText
+      # ex: https://www.youtube.com/channel/UCQvWX73GQygcwXOTSf_VDVg/
+      description_node = description_base_node.dig?("simpleText") || description_base_node
 
-    # if banner.includes? "channels/c4/default_banner"
-    #  banner = nil
-    # end
+      tags = initdata.dig?("header", "interactiveTabbedHeaderRenderer", "badges")
+        .try &.as_a.map(&.["metadataBadgeRenderer"]["label"].as_s) || [] of String
+    else
+      author = initdata["metadata"]["channelMetadataRenderer"]["title"].as_s
+      author_url = initdata["metadata"]["channelMetadataRenderer"]["channelUrl"].as_s
+      author_thumbnail = initdata["metadata"]["channelMetadataRenderer"]["avatar"]["thumbnails"][0]["url"].as_s
+      author_verified = has_verified_badge?(initdata.dig?("header", "c4TabbedHeaderRenderer", "badges"))
 
-    description_node = initdata["metadata"]["channelMetadataRenderer"]?.try &.["description"]?
-    tags = initdata.dig?("microformat", "microformatDataRenderer", "tags").try &.as_a.map(&.as_s) || [] of String
+      ucid = initdata["metadata"]["channelMetadataRenderer"]["externalId"].as_s
+
+      # Raises a KeyError on failure.
+      banners = initdata["header"]["c4TabbedHeaderRenderer"]?.try &.["banner"]?.try &.["thumbnails"]?
+      banners ||= initdata.dig?("header", "pageHeaderRenderer", "content", "pageHeaderViewModel", "banner", "imageBannerViewModel", "image", "sources")
+      banner = banners.try &.[-1]?.try &.["url"].as_s?
+
+      # if banner.includes? "channels/c4/default_banner"
+      #  banner = nil
+      # end
+
+      description_node = initdata["metadata"]["channelMetadataRenderer"]?.try &.["description"]?
+      tags = initdata.dig?("microformat", "microformatDataRenderer", "tags").try &.as_a.map(&.as_s) || [] of String
+    end
+
+    is_family_friendly = initdata["microformat"]["microformatDataRenderer"]["familySafe"].as_bool
+    if tabs_json = initdata["contents"]["twoColumnBrowseResultsRenderer"]["tabs"]?
+      # Get the name of the tabs available on this channel
+      tab_names = tabs_json.as_a.compact_map do |entry|
+        name = entry.dig?("tabRenderer", "title").try &.as_s.downcase
+
+        # This is a small fix to not add extra code on the HTML side
+        # I.e, the URL for the "live" tab is .../streams, so use "streams"
+        # everywhere for the sake of simplicity
+        (name == "live") ? "streams" : name
+      end
+
+      # Get the currently active tab ("About")
+      about_tab = extract_selected_tab(tabs_json)
+
+      # Try to find the about metadata section
+      channel_about_meta = about_tab.dig?(
+        "content",
+        "sectionListRenderer", "contents", 0,
+        "itemSectionRenderer", "contents", 0,
+        "channelAboutFullMetadataRenderer"
+      )
+
+      if !channel_about_meta.nil?
+        total_views = channel_about_meta.dig?("viewCountText", "simpleText").try &.as_s.gsub(/\D/, "").to_i64? || 0_i64
+
+        # The joined text is split to several sub strings. The reduce joins those strings before parsing the date.
+        joined = extract_text(channel_about_meta["joinedDateText"]?)
+          .try { |text| Time.parse(text, "Joined %b %-d, %Y", Time::Location.local) } || Time.unix(0)
+
+        # Normal Auto-generated channels
+        # https://support.google.com/youtube/answer/2579942
+        # For auto-generated channels, channel_about_meta only has
+        # ["description"]["simpleText"] and ["primaryLinks"][0]["title"]["simpleText"]
+        auto_generated = (
+          (channel_about_meta["primaryLinks"]?.try &.size) == 1 && \
+             extract_text(channel_about_meta.dig?("primaryLinks", 0, "title")) == "Auto-generated by YouTube" ||
+          channel_about_meta.dig?("links", 0, "channelExternalLinkViewModel", "title", "content").try &.as_s == "Auto-generated by YouTube"
+        )
+      end
+    end
   end
 
-  is_family_friendly = initdata["microformat"]["microformatDataRenderer"]["familySafe"].as_bool
-
   allowed_regions = initdata
     .dig?("microformat", "microformatDataRenderer", "availableCountries")
     .try &.as_a.map(&.as_s) || [] of String
@@ -102,52 +159,6 @@ def get_about_info(ucid, locale) : AboutChannel
     end
   end
 
-  total_views = 0_i64
-  joined = Time.unix(0)
-
-  tab_names = [] of String
-
-  if tabs_json = initdata["contents"]["twoColumnBrowseResultsRenderer"]["tabs"]?
-    # Get the name of the tabs available on this channel
-    tab_names = tabs_json.as_a.compact_map do |entry|
-      name = entry.dig?("tabRenderer", "title").try &.as_s.downcase
-
-      # This is a small fix to not add extra code on the HTML side
-      # I.e, the URL for the "live" tab is .../streams, so use "streams"
-      # everywhere for the sake of simplicity
-      (name == "live") ? "streams" : name
-    end
-
-    # Get the currently active tab ("About")
-    about_tab = extract_selected_tab(tabs_json)
-
-    # Try to find the about metadata section
-    channel_about_meta = about_tab.dig?(
-      "content",
-      "sectionListRenderer", "contents", 0,
-      "itemSectionRenderer", "contents", 0,
-      "channelAboutFullMetadataRenderer"
-    )
-
-    if !channel_about_meta.nil?
-      total_views = channel_about_meta.dig?("viewCountText", "simpleText").try &.as_s.gsub(/\D/, "").to_i64? || 0_i64
-
-      # The joined text is split to several sub strings. The reduce joins those strings before parsing the date.
-      joined = extract_text(channel_about_meta["joinedDateText"]?)
-        .try { |text| Time.parse(text, "Joined %b %-d, %Y", Time::Location.local) } || Time.unix(0)
-
-      # Normal Auto-generated channels
-      # https://support.google.com/youtube/answer/2579942
-      # For auto-generated channels, channel_about_meta only has
-      # ["description"]["simpleText"] and ["primaryLinks"][0]["title"]["simpleText"]
-      auto_generated = (
-        (channel_about_meta["primaryLinks"]?.try &.size) == 1 && \
-           extract_text(channel_about_meta.dig?("primaryLinks", 0, "title")) == "Auto-generated by YouTube" ||
-        channel_about_meta.dig?("links", 0, "channelExternalLinkViewModel", "title", "content").try &.as_s == "Auto-generated by YouTube"
-      )
-    end
-  end
-
   sub_count = 0
 
   if (metadata_rows = initdata.dig?("header", "pageHeaderRenderer", "content", "pageHeaderViewModel", "metadata", "contentMetadataViewModel", "metadataRows").try &.as_a)
@@ -177,6 +188,7 @@ def get_about_info(ucid, locale) : AboutChannel
     tabs: tab_names,
     tags: tags,
     verified: author_verified || false,
+    is_age_gated: is_age_gated || false,
   )
 end
 

src/invidious/playlists.cr

@@ -46,8 +46,14 @@ struct PlaylistVideo
     XML.build { |xml| to_xml(xml) }
   end
 
+  def to_json(locale : String?, json : JSON::Builder)
+    to_json(json)
+  end
+
   def to_json(json : JSON::Builder, index : Int32? = nil)
     json.object do
+      json.field "type", "video"
+
       json.field "title", self.title
       json.field "videoId", self.id
 
@@ -67,6 +73,7 @@ struct PlaylistVideo
       end
 
       json.field "lengthSeconds", self.length_seconds
+      json.field "liveNow", self.live_now
     end
   end
 

src/invidious/routes/api/v1/channels.cr

@@ -27,10 +27,21 @@ module Invidious::Routes::API::V1::Channels
     # Retrieve "sort by" setting from URL parameters
     sort_by = env.params.query["sort_by"]?.try &.downcase || "newest"
 
-    begin
-      videos, _ = Channel::Tabs.get_videos(channel, sort_by: sort_by)
-    rescue ex
-      return error_json(500, ex)
+    if channel.is_age_gated
+      begin
+        playlist = get_playlist(channel.ucid.sub("UC", "UULF"))
+        videos = get_playlist_videos(playlist, offset: 0)
+      rescue ex : InfoException
+        # playlist doesnt exist.
+        videos = [] of PlaylistVideo
+      end
+      next_continuation = nil
+    else
+      begin
+        videos, _ = Channel::Tabs.get_videos(channel, sort_by: sort_by)
+      rescue ex
+        return error_json(500, ex)
+      end
     end
 
     JSON.build do |json|
@@ -84,6 +95,7 @@ module Invidious::Routes::API::V1::Channels
         json.field "joined", channel.joined.to_unix
 
         json.field "autoGenerated", channel.auto_generated
+        json.field "ageGated", channel.is_age_gated
         json.field "isFamilyFriendly", channel.is_family_friendly
         json.field "description", html_to_content(channel.description_html)
         json.field "descriptionHtml", channel.description_html
@@ -142,12 +154,23 @@ module Invidious::Routes::API::V1::Channels
     sort_by = env.params.query["sort_by"]?.try &.downcase || "newest"
     continuation = env.params.query["continuation"]?
 
-    begin
-      videos, next_continuation = Channel::Tabs.get_60_videos(
-        channel, continuation: continuation, sort_by: sort_by
-      )
-    rescue ex
-      return error_json(500, ex)
+    if channel.is_age_gated
+      begin
+        playlist = get_playlist(channel.ucid.sub("UC", "UULF"))
+        videos = get_playlist_videos(playlist, offset: 0)
+      rescue ex : InfoException
+        # playlist doesnt exist.
+        videos = [] of PlaylistVideo
+      end
+      next_continuation = nil
+    else
+      begin
+        videos, next_continuation = Channel::Tabs.get_60_videos(
+          channel, continuation: continuation, sort_by: sort_by
+        )
+      rescue ex
+        return error_json(500, ex)
+      end
     end
 
     return JSON.build do |json|
@@ -176,12 +199,23 @@ module Invidious::Routes::API::V1::Channels
     # Retrieve continuation from URL parameters
     continuation = env.params.query["continuation"]?
 
-    begin
-      videos, next_continuation = Channel::Tabs.get_shorts(
-        channel, continuation: continuation
-      )
-    rescue ex
-      return error_json(500, ex)
+    if channel.is_age_gated
+      begin
+        playlist = get_playlist(channel.ucid.sub("UC", "UUSH"))
+        videos = get_playlist_videos(playlist, offset: 0)
+      rescue ex : InfoException
+        # playlist doesnt exist.
+        videos = [] of PlaylistVideo
+      end
+      next_continuation = nil
+    else
+      begin
+        videos, next_continuation = Channel::Tabs.get_shorts(
+          channel, continuation: continuation
+        )
+      rescue ex
+        return error_json(500, ex)
+      end
     end
 
     return JSON.build do |json|
@@ -211,12 +245,23 @@ module Invidious::Routes::API::V1::Channels
     sort_by = env.params.query["sort_by"]?.try &.downcase || "newest"
     continuation = env.params.query["continuation"]?
 
-    begin
-      videos, next_continuation = Channel::Tabs.get_60_livestreams(
-        channel, continuation: continuation, sort_by: sort_by
-      )
-    rescue ex
-      return error_json(500, ex)
+    if channel.is_age_gated
+      begin
+        playlist = get_playlist(channel.ucid.sub("UC", "UULV"))
+        videos = get_playlist_videos(playlist, offset: 0)
+      rescue ex : InfoException
+        # playlist doesnt exist.
+        videos = [] of PlaylistVideo
+      end
+      next_continuation = nil
+    else
+      begin
+        videos, next_continuation = Channel::Tabs.get_60_livestreams(
+          channel, continuation: continuation, sort_by: sort_by
+        )
+      rescue ex
+        return error_json(500, ex)
+      end
     end
 
     return JSON.build do |json|

src/invidious/routes/channels.cr

@@ -36,12 +36,24 @@ module Invidious::Routes::Channels
       items = items.select(SearchPlaylist)
       items.each(&.author = "")
     else
-      sort_options = {"newest", "oldest", "popular"}
-
       # Fetch items and continuation token
-      items, next_continuation = Channel::Tabs.get_videos(
-        channel, continuation: continuation, sort_by: (sort_by || "newest")
-      )
+      if channel.is_age_gated
+        sort_by = ""
+        sort_options = [] of String
+        begin
+          playlist = get_playlist(channel.ucid.sub("UC", "UULF"))
+          items = get_playlist_videos(playlist, offset: 0)
+        rescue ex : InfoException
+          # playlist doesnt exist.
+          items = [] of PlaylistVideo
+        end
+        next_continuation = nil
+      else
+        sort_options = {"newest", "oldest", "popular"}
+        items, next_continuation = Channel::Tabs.get_videos(
+          channel, continuation: continuation, sort_by: (sort_by || "newest")
+        )
+      end
     end
 
     selected_tab = Frontend::ChannelPage::TabsAvailable::Videos
@@ -58,14 +70,27 @@ module Invidious::Routes::Channels
       return env.redirect "/channel/#{channel.ucid}"
     end
 
-    # TODO: support sort option for shorts
-    sort_by = ""
-    sort_options = [] of String
+    if channel.is_age_gated
+      sort_by = ""
+      sort_options = [] of String
+      begin
+        playlist = get_playlist(channel.ucid.sub("UC", "UUSH"))
+        items = get_playlist_videos(playlist, offset: 0)
+      rescue ex : InfoException
+        # playlist doesnt exist.
+        items = [] of PlaylistVideo
+      end
+      next_continuation = nil
+    else
+      # TODO: support sort option for shorts
+      sort_by = ""
+      sort_options = [] of String
 
-    # Fetch items and continuation token
-    items, next_continuation = Channel::Tabs.get_shorts(
-      channel, continuation: continuation
-    )
+      # Fetch items and continuation token
+      items, next_continuation = Channel::Tabs.get_shorts(
+        channel, continuation: continuation
+      )
+    end
 
     selected_tab = Frontend::ChannelPage::TabsAvailable::Shorts
     templated "channel"
@@ -81,13 +106,26 @@ module Invidious::Routes::Channels
       return env.redirect "/channel/#{channel.ucid}"
     end
 
-    sort_by = env.params.query["sort_by"]?.try &.downcase || "newest"
-    sort_options = {"newest", "oldest", "popular"}
+    if channel.is_age_gated
+      sort_by = ""
+      sort_options = [] of String
+      begin
+        playlist = get_playlist(channel.ucid.sub("UC", "UULV"))
+        items = get_playlist_videos(playlist, offset: 0)
+      rescue ex : InfoException
+        # playlist doesnt exist.
+        items = [] of PlaylistVideo
+      end
+      next_continuation = nil
+    else
+      sort_by = env.params.query["sort_by"]?.try &.downcase || "newest"
+      sort_options = {"newest", "oldest", "popular"}
 
-    # Fetch items and continuation token
-    items, next_continuation = Channel::Tabs.get_60_livestreams(
-      channel, continuation: continuation, sort_by: sort_by
-    )
+      # Fetch items and continuation token
+      items, next_continuation = Channel::Tabs.get_60_livestreams(
+        channel, continuation: continuation, sort_by: sort_by
+      )
+    end
 
     selected_tab = Frontend::ChannelPage::TabsAvailable::Streams
     templated "channel"