530 行
15 KiB
Crystal
530 行
15 KiB
Crystal
struct PlaylistVideo
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include DB::Serializable
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property title : String
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property id : String
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property author : String
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property ucid : String
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property length_seconds : Int32
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property published : Time
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property plid : String
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property index : Int64
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property live_now : Bool
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def to_xml(xml : XML::Builder)
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xml.element("entry") do
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xml.element("id") { xml.text "yt:video:#{self.id}" }
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xml.element("yt:videoId") { xml.text self.id }
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xml.element("yt:channelId") { xml.text self.ucid }
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xml.element("title") { xml.text self.title }
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xml.element("link", rel: "alternate", href: "#{HOST_URL}/watch?v=#{self.id}")
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xml.element("author") do
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xml.element("name") { xml.text self.author }
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xml.element("uri") { xml.text "#{HOST_URL}/channel/#{self.ucid}" }
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end
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xml.element("content", type: "xhtml") do
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xml.element("div", xmlns: "http://www.w3.org/1999/xhtml") do
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xml.element("a", href: "#{HOST_URL}/watch?v=#{self.id}") do
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xml.element("img", src: "#{HOST_URL}/vi/#{self.id}/mqdefault.jpg")
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end
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end
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end
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xml.element("published") { xml.text self.published.to_s("%Y-%m-%dT%H:%M:%S%:z") }
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xml.element("media:group") do
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xml.element("media:title") { xml.text self.title }
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xml.element("media:thumbnail", url: "#{HOST_URL}/vi/#{self.id}/mqdefault.jpg",
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width: "320", height: "180")
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end
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end
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end
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def to_xml(_xml : Nil = nil)
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XML.build { |xml| to_xml(xml) }
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end
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def to_json(json : JSON::Builder, index : Int32? = nil)
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json.object do
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json.field "title", self.title
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json.field "videoId", self.id
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json.field "author", self.author
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json.field "authorId", self.ucid
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json.field "authorUrl", "/channel/#{self.ucid}"
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json.field "videoThumbnails" do
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Invidious::JSONify::APIv1.thumbnails(json, self.id)
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end
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if index
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json.field "index", index
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json.field "indexId", self.index.to_u64.to_s(16).upcase
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else
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json.field "index", self.index
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end
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json.field "lengthSeconds", self.length_seconds
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end
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end
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def to_json(_json : Nil, index : Int32? = nil)
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JSON.build { |json| to_json(json, index: index) }
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end
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end
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struct Playlist
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include DB::Serializable
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property title : String
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property id : String
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property author : String
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property author_thumbnail : String
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property ucid : String
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property description : String
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property description_html : String
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property video_count : Int32
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property views : Int64
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property updated : Time
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property thumbnail : String?
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def to_json(offset, json : JSON::Builder, video_id : String? = nil)
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json.object do
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json.field "type", "playlist"
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json.field "title", self.title
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json.field "playlistId", self.id
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json.field "playlistThumbnail", self.thumbnail
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json.field "author", self.author
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json.field "authorId", self.ucid
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json.field "authorUrl", "/channel/#{self.ucid}"
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json.field "authorThumbnails" do
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json.array do
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qualities = {32, 48, 76, 100, 176, 512}
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qualities.each do |quality|
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json.object do
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json.field "url", self.author_thumbnail.not_nil!.gsub(/=\d+/, "=s#{quality}")
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json.field "width", quality
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json.field "height", quality
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end
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end
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end
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end
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json.field "description", self.description
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json.field "descriptionHtml", self.description_html
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json.field "videoCount", self.video_count
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json.field "viewCount", self.views
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json.field "updated", self.updated.to_unix
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json.field "isListed", self.privacy.public?
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json.field "videos" do
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json.array do
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videos = get_playlist_videos(self, offset: offset, video_id: video_id)
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videos.each do |video|
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video.to_json(json)
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end
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end
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end
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end
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end
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def to_json(offset, _json : Nil = nil, video_id : String? = nil)
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JSON.build do |json|
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to_json(offset, json, video_id: video_id)
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end
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end
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def privacy
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PlaylistPrivacy::Public
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end
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end
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enum PlaylistPrivacy
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Public = 0
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Unlisted = 1
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Private = 2
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end
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struct InvidiousPlaylist
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include DB::Serializable
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property title : String
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property id : String
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property author : String
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property description : String = ""
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property video_count : Int32
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property created : Time
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property updated : Time
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@[DB::Field(converter: InvidiousPlaylist::PlaylistPrivacyConverter)]
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property privacy : PlaylistPrivacy = PlaylistPrivacy::Private
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property index : Array(Int64)
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@[DB::Field(ignore: true)]
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property thumbnail_id : String?
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module PlaylistPrivacyConverter
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def self.from_rs(rs)
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return PlaylistPrivacy.parse(String.new(rs.read(Slice(UInt8))))
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end
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end
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def to_json(offset, json : JSON::Builder, video_id : String? = nil)
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json.object do
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json.field "type", "invidiousPlaylist"
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json.field "title", self.title
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json.field "playlistId", self.id
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json.field "author", self.author
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json.field "authorId", self.ucid
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json.field "authorUrl", nil
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json.field "authorThumbnails", [] of String
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json.field "description", html_to_content(self.description_html)
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json.field "descriptionHtml", self.description_html
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json.field "videoCount", self.video_count
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json.field "viewCount", self.views
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json.field "updated", self.updated.to_unix
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json.field "isListed", self.privacy.public?
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json.field "videos" do
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json.array do
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if (!offset || offset == 0) && !video_id.nil?
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index = Invidious::Database::PlaylistVideos.select_index(self.id, video_id)
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offset = self.index.index(index) || 0
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end
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videos = get_playlist_videos(self, offset: offset, video_id: video_id)
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videos.each_with_index do |video, idx|
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video.to_json(json, offset + idx)
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end
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end
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end
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end
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end
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def to_json(offset, _json : Nil = nil, video_id : String? = nil)
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JSON.build do |json|
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to_json(offset, json, video_id: video_id)
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end
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end
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def thumbnail
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# TODO: Get playlist thumbnail from playlist data rather than first video
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@thumbnail_id ||= Invidious::Database::PlaylistVideos.select_one_id(self.id, self.index) || "-----------"
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"/vi/#{@thumbnail_id}/mqdefault.jpg"
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end
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def author_thumbnail
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nil
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end
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def ucid
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nil
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end
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def views
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0_i64
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end
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def description_html
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HTML.escape(self.description)
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end
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end
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def create_playlist(title, privacy, user)
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plid = "IVPL#{Random::Secure.urlsafe_base64(24)[0, 31]}"
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playlist = InvidiousPlaylist.new({
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title: title.byte_slice(0, 150),
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id: plid,
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author: user.email,
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description: "", # Max 5000 characters
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video_count: 0,
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created: Time.utc,
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updated: Time.utc,
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privacy: privacy,
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index: [] of Int64,
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})
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Invidious::Database::Playlists.insert(playlist)
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return playlist
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end
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def subscribe_playlist(user, playlist)
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playlist = InvidiousPlaylist.new({
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title: playlist.title.byte_slice(0, 150),
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id: playlist.id,
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author: user.email,
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description: "", # Max 5000 characters
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video_count: playlist.video_count,
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created: Time.utc,
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updated: playlist.updated,
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privacy: PlaylistPrivacy::Private,
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index: [] of Int64,
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})
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Invidious::Database::Playlists.insert(playlist)
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return playlist
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end
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def produce_playlist_continuation(id, index)
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if id.starts_with? "UC"
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id = "UU" + id.lchop("UC")
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end
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plid = "VL" + id
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# Emulate a "request counter" increment, to make perfectly valid
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# ctokens, even if at the time of writing, it's ignored by youtube.
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request_count = (index / 100).to_i64 || 1_i64
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data = {"1:varint" => index.to_i64}
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.try { |i| Protodec::Any.cast_json(i) }
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.try { |i| Protodec::Any.from_json(i) }
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.try { |i| Base64.urlsafe_encode(i, padding: false) }
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object = {
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"80226972:embedded" => {
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"2:string" => plid,
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"3:base64" => {
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"1:varint" => request_count,
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"15:string" => "PT:#{data}",
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"104:embedded" => {"1:0:varint" => 0_i64},
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},
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"35:string" => id,
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},
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}
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continuation = object.try { |i| Protodec::Any.cast_json(i) }
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.try { |i| Protodec::Any.from_json(i) }
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.try { |i| Base64.urlsafe_encode(i) }
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.try { |i| URI.encode_www_form(i) }
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return continuation
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end
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def get_playlist(plid : String)
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if plid.starts_with? "IV"
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if playlist = Invidious::Database::Playlists.select(id: plid)
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return playlist
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else
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raise NotFoundException.new("Playlist does not exist.")
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end
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else
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return fetch_playlist(plid)
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end
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end
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def fetch_playlist(plid : String)
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if plid.starts_with? "UC"
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plid = "UU#{plid.lchop("UC")}"
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end
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initial_data = YoutubeAPI.browse("VL" + plid, params: "")
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playlist_sidebar_renderer = initial_data.dig?("sidebar", "playlistSidebarRenderer", "items")
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raise InfoException.new("Could not extract playlistSidebarRenderer.") if !playlist_sidebar_renderer
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playlist_info = playlist_sidebar_renderer.dig?(0, "playlistSidebarPrimaryInfoRenderer")
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raise InfoException.new("Could not extract playlist info") if !playlist_info
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title = playlist_info.dig?("title", "runs", 0, "text").try &.as_s || ""
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desc_item = playlist_info["description"]?
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description_txt = desc_item.try &.["runs"]?.try &.as_a
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.map(&.["text"].as_s).join("") || desc_item.try &.["simpleText"]?.try &.as_s || ""
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description_html = desc_item.try &.["runs"]?.try &.as_a
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.try { |run| content_to_comment_html(run).try &.to_s } || "<p></p>"
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thumbnail = playlist_info.dig?(
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"thumbnailRenderer", "playlistVideoThumbnailRenderer",
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"thumbnail", "thumbnails", 0, "url"
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).try &.as_s
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views = 0_i64
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updated = Time.utc
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video_count = 0
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playlist_info["stats"]?.try &.as_a.each do |stat|
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text = stat["runs"]?.try &.as_a.map(&.["text"].as_s).join("") || stat["simpleText"]?.try &.as_s
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next if !text
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if text.includes? "video"
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video_count = text.gsub(/\D/, "").to_i? || 0
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elsif text.includes? "view"
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views = text.gsub(/\D/, "").to_i64? || 0_i64
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else
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updated = decode_date(text.lchop("Last updated on ").lchop("Updated "))
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end
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end
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if playlist_sidebar_renderer.size < 2
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author = ""
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author_thumbnail = ""
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ucid = ""
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else
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author_info = playlist_sidebar_renderer[1].dig?(
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"playlistSidebarSecondaryInfoRenderer", "videoOwner", "videoOwnerRenderer"
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)
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raise InfoException.new("Could not extract author info") if !author_info
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author = author_info.dig?("title", "runs", 0, "text").try &.as_s || ""
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author_thumbnail = author_info.dig?("thumbnail", "thumbnails", 0, "url").try &.as_s || ""
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ucid = author_info.dig?("title", "runs", 0, "navigationEndpoint", "browseEndpoint", "browseId").try &.as_s || ""
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end
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return Playlist.new({
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title: title,
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id: plid,
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author: author,
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author_thumbnail: author_thumbnail,
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ucid: ucid,
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description: description_txt,
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description_html: description_html,
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video_count: video_count,
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views: views,
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updated: updated,
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thumbnail: thumbnail,
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})
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end
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def get_playlist_videos(playlist : InvidiousPlaylist | Playlist, offset : Int32, video_id = nil)
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# Show empty playlist if requested page is out of range
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# (e.g, when a new playlist has been created, offset will be negative)
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if offset >= playlist.video_count || offset < 0
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return [] of PlaylistVideo
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end
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if playlist.is_a? InvidiousPlaylist
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Invidious::Database::PlaylistVideos.select(playlist.id, playlist.index, offset, limit: 100)
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else
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if video_id
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initial_data = YoutubeAPI.next({
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"videoId" => video_id,
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"playlistId" => playlist.id,
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})
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offset = initial_data.dig?("contents", "twoColumnWatchNextResults", "playlist", "playlist", "currentIndex").try &.as_i || offset
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end
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videos = [] of PlaylistVideo
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until videos.size >= 200 || videos.size == playlist.video_count || offset >= playlist.video_count
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# 100 videos per request
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ctoken = produce_playlist_continuation(playlist.id, offset)
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initial_data = YoutubeAPI.browse(ctoken)
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videos += extract_playlist_videos(initial_data)
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offset += 100
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end
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return videos
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end
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end
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def extract_playlist_videos(initial_data : Hash(String, JSON::Any))
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videos = [] of PlaylistVideo
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if initial_data["contents"]?
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tabs = initial_data["contents"]["twoColumnBrowseResultsRenderer"]["tabs"]
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tabs_renderer = tabs.as_a.select(&.["tabRenderer"]["selected"]?.try &.as_bool)[0]["tabRenderer"]
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# Watch out the two versions, with and without "s"
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if tabs_renderer["contents"]? || tabs_renderer["content"]?
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# Initial playlist data
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tabs_contents = tabs_renderer.["contents"]? || tabs_renderer.["content"]
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list_renderer = tabs_contents.["sectionListRenderer"]["contents"][0]
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item_renderer = list_renderer.["itemSectionRenderer"]["contents"][0]
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contents = item_renderer.["playlistVideoListRenderer"]["contents"].as_a
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else
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# Continuation data
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contents = initial_data["onResponseReceivedActions"][0]?
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.try &.["appendContinuationItemsAction"]["continuationItems"].as_a
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end
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else
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contents = initial_data["response"]?.try &.["continuationContents"]["playlistVideoListContinuation"]["contents"].as_a
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end
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contents.try &.each do |item|
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if i = item["playlistVideoRenderer"]?
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video_id = i["navigationEndpoint"]["watchEndpoint"]["videoId"].as_s
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plid = i["navigationEndpoint"]["watchEndpoint"]["playlistId"].as_s
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index = i["navigationEndpoint"]["watchEndpoint"]["index"].as_i64
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title = i["title"].try { |t| t["simpleText"]? || t["runs"]?.try &.[0]["text"]? }.try &.as_s || ""
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author = i["shortBylineText"]?.try &.["runs"][0]["text"].as_s || ""
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ucid = i["shortBylineText"]?.try &.["runs"][0]["navigationEndpoint"]["browseEndpoint"]["browseId"].as_s || ""
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length_seconds = i["lengthSeconds"]?.try &.as_s.to_i
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live = false
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if !length_seconds
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live = true
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length_seconds = 0
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end
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videos << PlaylistVideo.new({
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title: title,
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id: video_id,
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author: author,
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ucid: ucid,
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length_seconds: length_seconds,
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published: Time.utc,
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plid: plid,
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live_now: live,
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index: index,
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})
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end
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end
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return videos
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end
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def template_playlist(playlist)
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html = <<-END_HTML
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<h3>
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<a href="/playlist?list=#{playlist["playlistId"]}">
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#{playlist["title"]}
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</a>
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</h3>
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<div class="pure-menu pure-menu-scrollable playlist-restricted">
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<ol class="pure-menu-list">
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END_HTML
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playlist["videos"].as_a.each do |video|
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html += <<-END_HTML
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<li class="pure-menu-item" id="#{video["videoId"]}">
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<a href="/watch?v=#{video["videoId"]}&list=#{playlist["playlistId"]}&index=#{video["index"]}">
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<div class="thumbnail">
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<img loading="lazy" class="thumbnail" src="/vi/#{video["videoId"]}/mqdefault.jpg">
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<p class="length">#{recode_length_seconds(video["lengthSeconds"].as_i)}</p>
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</div>
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<p style="width:100%">#{video["title"]}</p>
|
|
<p>
|
|
<b style="width:100%">#{video["author"]}</b>
|
|
</p>
|
|
</a>
|
|
</li>
|
|
END_HTML
|
|
end
|
|
|
|
html += <<-END_HTML
|
|
</ol>
|
|
</div>
|
|
<hr>
|
|
END_HTML
|
|
|
|
html
|
|
end
|