# "Invidious" (which is an alternative front-end to YouTube) # Copyright (C) 2019 Omar Roth # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published # by the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see . require "digest/md5" require "file_utils" require "kemal" require "openssl/hmac" require "option_parser" require "pg" require "sqlite3" require "xml" require "yaml" require "compress/zip" require "protodec/utils" require "./invidious/helpers/*" require "./invidious/*" require "./invidious/routes/**" require "./invidious/jobs/**" CONFIG = Config.load HMAC_KEY = CONFIG.hmac_key || Random::Secure.hex(32) PG_DB = DB.open CONFIG.database_url ARCHIVE_URL = URI.parse("https://archive.org") LOGIN_URL = URI.parse("https://accounts.google.com") PUBSUB_URL = URI.parse("https://pubsubhubbub.appspot.com") REDDIT_URL = URI.parse("https://www.reddit.com") TEXTCAPTCHA_URL = URI.parse("https://textcaptcha.com") YT_URL = URI.parse("https://www.youtube.com") HOST_URL = make_host_url(Kemal.config) CHARS_SAFE = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_" TEST_IDS = {"AgbeGFYluEA", "BaW_jenozKc", "a9LDPn-MO4I", "ddFvjfvPnqk", "iqKdEhx-dD4"} MAX_ITEMS_PER_PAGE = 1500 REQUEST_HEADERS_WHITELIST = {"accept", "accept-encoding", "cache-control", "content-length", "if-none-match", "range"} RESPONSE_HEADERS_BLACKLIST = {"access-control-allow-origin", "alt-svc", "server"} HTTP_CHUNK_SIZE = 10485760 # ~10MB CURRENT_BRANCH = {{ "#{`git branch | sed -n '/* /s///p'`.strip}" }} CURRENT_COMMIT = {{ "#{`git rev-list HEAD --max-count=1 --abbrev-commit`.strip}" }} CURRENT_VERSION = {{ "#{`git log -1 --format=%ci | awk '{print $1}' | sed s/-/./g`.strip}" }} # This is used to determine the `?v=` on the end of file URLs (for cache busting). We # only need to expire modified assets, so we can use this to find the last commit that changes # any assets ASSET_COMMIT = {{ "#{`git rev-list HEAD --max-count=1 --abbrev-commit -- assets`.strip}" }} SOFTWARE = { "name" => "invidious", "version" => "#{CURRENT_VERSION}-#{CURRENT_COMMIT}", "branch" => "#{CURRENT_BRANCH}", } YT_POOL = YoutubeConnectionPool.new(YT_URL, capacity: CONFIG.pool_size, timeout: 2.0, use_quic: CONFIG.use_quic) # CLI Kemal.config.extra_options do |parser| parser.banner = "Usage: invidious [arguments]" parser.on("-c THREADS", "--channel-threads=THREADS", "Number of threads for refreshing channels (default: #{CONFIG.channel_threads})") do |number| begin CONFIG.channel_threads = number.to_i rescue ex puts "THREADS must be integer" exit end end parser.on("-f THREADS", "--feed-threads=THREADS", "Number of threads for refreshing feeds (default: #{CONFIG.feed_threads})") do |number| begin CONFIG.feed_threads = number.to_i rescue ex puts "THREADS must be integer" exit end end parser.on("-o OUTPUT", "--output=OUTPUT", "Redirect output (default: #{CONFIG.output})") do |output| CONFIG.output = output end parser.on("-l LEVEL", "--log-level=LEVEL", "Log level, one of #{LogLevel.values} (default: #{CONFIG.log_level})") do |log_level| CONFIG.log_level = LogLevel.parse(log_level) end parser.on("-v", "--version", "Print version") do puts SOFTWARE.to_pretty_json exit end end Kemal::CLI.new ARGV if CONFIG.output.upcase != "STDOUT" FileUtils.mkdir_p(File.dirname(CONFIG.output)) end OUTPUT = CONFIG.output.upcase == "STDOUT" ? STDOUT : File.open(CONFIG.output, mode: "a") LOGGER = Invidious::LogHandler.new(OUTPUT, CONFIG.log_level) # Check table integrity if CONFIG.check_tables check_enum(PG_DB, "privacy", PlaylistPrivacy) check_table(PG_DB, "channels", InvidiousChannel) check_table(PG_DB, "channel_videos", ChannelVideo) check_table(PG_DB, "playlists", InvidiousPlaylist) check_table(PG_DB, "playlist_videos", PlaylistVideo) check_table(PG_DB, "nonces", Nonce) check_table(PG_DB, "session_ids", SessionId) check_table(PG_DB, "users", User) check_table(PG_DB, "videos", Video) if CONFIG.cache_annotations check_table(PG_DB, "annotations", Annotation) end end # Start jobs if CONFIG.channel_threads > 0 Invidious::Jobs.register Invidious::Jobs::RefreshChannelsJob.new(PG_DB) end if CONFIG.feed_threads > 0 Invidious::Jobs.register Invidious::Jobs::RefreshFeedsJob.new(PG_DB) end DECRYPT_FUNCTION = DecryptFunction.new(CONFIG.decrypt_polling) if CONFIG.decrypt_polling Invidious::Jobs.register Invidious::Jobs::UpdateDecryptFunctionJob.new end if CONFIG.statistics_enabled Invidious::Jobs.register Invidious::Jobs::StatisticsRefreshJob.new(PG_DB, SOFTWARE) end if (CONFIG.use_pubsub_feeds.is_a?(Bool) && CONFIG.use_pubsub_feeds.as(Bool)) || (CONFIG.use_pubsub_feeds.is_a?(Int32) && CONFIG.use_pubsub_feeds.as(Int32) > 0) Invidious::Jobs.register Invidious::Jobs::SubscribeToFeedsJob.new(PG_DB, HMAC_KEY) end if CONFIG.popular_enabled Invidious::Jobs.register Invidious::Jobs::PullPopularVideosJob.new(PG_DB) end if CONFIG.captcha_key Invidious::Jobs.register Invidious::Jobs::BypassCaptchaJob.new end connection_channel = Channel({Bool, Channel(PQ::Notification)}).new(32) Invidious::Jobs.register Invidious::Jobs::NotificationJob.new(connection_channel, CONFIG.database_url) Invidious::Jobs.start_all def popular_videos Invidious::Jobs::PullPopularVideosJob::POPULAR_VIDEOS.get end before_all do |env| preferences = begin Preferences.from_json(URI.decode_www_form(env.request.cookies["PREFS"]?.try &.value || "{}")) rescue Preferences.from_json("{}") end env.set "preferences", preferences env.response.headers["X-XSS-Protection"] = "1; mode=block" env.response.headers["X-Content-Type-Options"] = "nosniff" # Allow media resources to be loaded from google servers # TODO: check if *.youtube.com can be removed if CONFIG.disabled?("local") || !preferences.local extra_media_csp = " https://*.googlevideo.com:443 https://*.youtube.com:443" else extra_media_csp = "" end # Only allow the pages at /embed/* to be embedded if env.request.resource.starts_with?("/embed") frame_ancestors = "'self' http: https:" else frame_ancestors = "'none'" end # TODO: Remove style-src's 'unsafe-inline', requires to remove all # inline styles (, style=" [..] ") env.response.headers["Content-Security-Policy"] = { "default-src 'none'", "script-src 'self'", "style-src 'self' 'unsafe-inline'", "img-src 'self' data:", "font-src 'self' data:", "connect-src 'self'", "manifest-src 'self'", "media-src 'self' blob:" + extra_media_csp, "child-src 'self' blob:", "frame-src 'self'", "frame-ancestors " + frame_ancestors, }.join("; ") env.response.headers["Referrer-Policy"] = "same-origin" # Ask the chrom*-based browsers to disable FLoC # See: https://blog.runcloud.io/google-floc/ env.response.headers["Permissions-Policy"] = "interest-cohort=()" if (Kemal.config.ssl || CONFIG.https_only) && CONFIG.hsts env.response.headers["Strict-Transport-Security"] = "max-age=31536000; includeSubDomains; preload" end next if { "/sb/", "/vi/", "/s_p/", "/yts/", "/ggpht/", "/api/manifest/", "/videoplayback", "/latest_version", }.any? { |r| env.request.resource.starts_with? r } if env.request.cookies.has_key? "SID" sid = env.request.cookies["SID"].value if sid.starts_with? "v1:" raise "Cannot use token as SID" end # Invidious users only have SID if !env.request.cookies.has_key? "SSID" if email = PG_DB.query_one?("SELECT email FROM session_ids WHERE id = $1", sid, as: String) user = PG_DB.query_one("SELECT * FROM users WHERE email = $1", email, as: User) csrf_token = generate_response(sid, { ":authorize_token", ":playlist_ajax", ":signout", ":subscription_ajax", ":token_ajax", ":watch_ajax", }, HMAC_KEY, PG_DB, 1.week) preferences = user.preferences env.set "preferences", preferences env.set "sid", sid env.set "csrf_token", csrf_token env.set "user", user end else headers = HTTP::Headers.new headers["Cookie"] = env.request.headers["Cookie"] begin user, sid = get_user(sid, headers, PG_DB, false) csrf_token = generate_response(sid, { ":authorize_token", ":playlist_ajax", ":signout", ":subscription_ajax", ":token_ajax", ":watch_ajax", }, HMAC_KEY, PG_DB, 1.week) preferences = user.preferences env.set "preferences", preferences env.set "sid", sid env.set "csrf_token", csrf_token env.set "user", user rescue ex end end end dark_mode = convert_theme(env.params.query["dark_mode"]?) || preferences.dark_mode.to_s thin_mode = env.params.query["thin_mode"]? || preferences.thin_mode.to_s thin_mode = thin_mode == "true" locale = env.params.query["hl"]? || preferences.locale preferences.dark_mode = dark_mode preferences.thin_mode = thin_mode preferences.locale = locale env.set "preferences", preferences current_page = env.request.path if env.request.query query = HTTP::Params.parse(env.request.query.not_nil!) if query["referer"]? query["referer"] = get_referer(env, "/") end current_page += "?#{query}" end env.set "current_page", URI.encode_www_form(current_page) end Invidious::Routing.get "/", Invidious::Routes::Misc, :home Invidious::Routing.get "/privacy", Invidious::Routes::Misc, :privacy Invidious::Routing.get "/licenses", Invidious::Routes::Misc, :licenses Invidious::Routing.get "/channel/:ucid", Invidious::Routes::Channels, :home Invidious::Routing.get "/channel/:ucid/videos", Invidious::Routes::Channels, :videos Invidious::Routing.get "/channel/:ucid/playlists", Invidious::Routes::Channels, :playlists Invidious::Routing.get "/channel/:ucid/community", Invidious::Routes::Channels, :community Invidious::Routing.get "/channel/:ucid/channels", Invidious::Routes::Channels, :channels Invidious::Routing.get "/channel/:ucid/channels/:param", Invidious::Routes::Channels, :featured_channel_category Invidious::Routing.get "/channel/:ucid/about", Invidious::Routes::Channels, :about Invidious::Routing.get "/watch", Invidious::Routes::Watch, :handle Invidious::Routing.get "/watch/:id", Invidious::Routes::Watch, :redirect Invidious::Routing.get "/shorts/:id", Invidious::Routes::Watch, :redirect Invidious::Routing.get "/w/:id", Invidious::Routes::Watch, :redirect Invidious::Routing.get "/v/:id", Invidious::Routes::Watch, :redirect Invidious::Routing.get "/e/:id", Invidious::Routes::Watch, :redirect Invidious::Routing.get "/redirect", Invidious::Routes::Misc, :cross_instance_redirect Invidious::Routing.get "/embed/", Invidious::Routes::Embed, :redirect Invidious::Routing.get "/embed/:id", Invidious::Routes::Embed, :show Invidious::Routing.get "/view_all_playlists", Invidious::Routes::Playlists, :index Invidious::Routing.get "/create_playlist", Invidious::Routes::Playlists, :new Invidious::Routing.post "/create_playlist", Invidious::Routes::Playlists, :create Invidious::Routing.get "/subscribe_playlist", Invidious::Routes::Playlists, :subscribe Invidious::Routing.get "/delete_playlist", Invidious::Routes::Playlists, :delete_page Invidious::Routing.post "/delete_playlist", Invidious::Routes::Playlists, :delete Invidious::Routing.get "/edit_playlist", Invidious::Routes::Playlists, :edit Invidious::Routing.post "/edit_playlist", Invidious::Routes::Playlists, :update Invidious::Routing.get "/add_playlist_items", Invidious::Routes::Playlists, :add_playlist_items_page Invidious::Routing.post "/playlist_ajax", Invidious::Routes::Playlists, :playlist_ajax Invidious::Routing.get "/playlist", Invidious::Routes::Playlists, :show Invidious::Routing.get "/mix", Invidious::Routes::Playlists, :mix Invidious::Routing.get "/opensearch.xml", Invidious::Routes::Search, :opensearch Invidious::Routing.get "/results", Invidious::Routes::Search, :results Invidious::Routing.get "/search", Invidious::Routes::Search, :search Invidious::Routing.get "/login", Invidious::Routes::Login, :login_page Invidious::Routing.post "/login", Invidious::Routes::Login, :login Invidious::Routing.post "/signout", Invidious::Routes::Login, :signout Invidious::Routing.get "/preferences", Invidious::Routes::PreferencesRoute, :show Invidious::Routing.post "/preferences", Invidious::Routes::PreferencesRoute, :update Invidious::Routing.get "/toggle_theme", Invidious::Routes::PreferencesRoute, :toggle_theme # Users post "/watch_ajax" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env, "/feed/subscriptions") redirect = env.params.query["redirect"]? redirect ||= "true" redirect = redirect == "true" if !user if redirect next env.redirect referer else next error_json(403, "No such user") end end user = user.as(User) sid = sid.as(String) token = env.params.body["csrf_token"]? id = env.params.query["id"]? if !id env.response.status_code = 400 next end begin validate_request(token, sid, env.request, HMAC_KEY, PG_DB, locale) rescue ex if redirect next error_template(400, ex) else next error_json(400, ex) end end if env.params.query["action_mark_watched"]? action = "action_mark_watched" elsif env.params.query["action_mark_unwatched"]? action = "action_mark_unwatched" else next env.redirect referer end case action when "action_mark_watched" if !user.watched.includes? id PG_DB.exec("UPDATE users SET watched = array_append(watched, $1) WHERE email = $2", id, user.email) end when "action_mark_unwatched" PG_DB.exec("UPDATE users SET watched = array_remove(watched, $1) WHERE email = $2", id, user.email) else next error_json(400, "Unsupported action #{action}") end if redirect env.redirect referer else env.response.content_type = "application/json" "{}" end end # /modify_notifications # will "ding" all subscriptions. # /modify_notifications?receive_all_updates=false&receive_no_updates=false # will "unding" all subscriptions. get "/modify_notifications" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env, "/") redirect = env.params.query["redirect"]? redirect ||= "false" redirect = redirect == "true" if !user if redirect next env.redirect referer else next error_json(403, "No such user") end end user = user.as(User) if !user.password channel_req = {} of String => String channel_req["receive_all_updates"] = env.params.query["receive_all_updates"]? || "true" channel_req["receive_no_updates"] = env.params.query["receive_no_updates"]? || "" channel_req["receive_post_updates"] = env.params.query["receive_post_updates"]? || "true" channel_req.reject! { |k, v| v != "true" && v != "false" } headers = HTTP::Headers.new headers["Cookie"] = env.request.headers["Cookie"] html = YT_POOL.client &.get("/subscription_manager?disable_polymer=1", headers) cookies = HTTP::Cookies.from_client_headers(headers) html.cookies.each do |cookie| if {"VISITOR_INFO1_LIVE", "YSC", "SIDCC"}.includes? cookie.name if cookies[cookie.name]? cookies[cookie.name] = cookie else cookies << cookie end end end headers = cookies.add_request_headers(headers) if match = html.body.match(/'XSRF_TOKEN': "(?[^"]+)"/) session_token = match["session_token"] else next env.redirect referer end headers["content-type"] = "application/x-www-form-urlencoded" channel_req["session_token"] = session_token subs = XML.parse_html(html.body) subs.xpath_nodes(%q(//a[@class="subscription-title yt-uix-sessionlink"]/@href)).each do |channel| channel_id = channel.content.lstrip("/channel/").not_nil! channel_req["channel_id"] = channel_id YT_POOL.client &.post("/subscription_ajax?action_update_subscription_preferences=1", headers, form: channel_req) end end if redirect env.redirect referer else env.response.content_type = "application/json" "{}" end end post "/subscription_ajax" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env, "/") redirect = env.params.query["redirect"]? redirect ||= "true" redirect = redirect == "true" if !user if redirect next env.redirect referer else next error_json(403, "No such user") end end user = user.as(User) sid = sid.as(String) token = env.params.body["csrf_token"]? begin validate_request(token, sid, env.request, HMAC_KEY, PG_DB, locale) rescue ex if redirect next error_template(400, ex) else next error_json(400, ex) end end if env.params.query["action_create_subscription_to_channel"]?.try &.to_i?.try &.== 1 action = "action_create_subscription_to_channel" elsif env.params.query["action_remove_subscriptions"]?.try &.to_i?.try &.== 1 action = "action_remove_subscriptions" else next env.redirect referer end channel_id = env.params.query["c"]? channel_id ||= "" if !user.password # Sync subscriptions with YouTube subscribe_ajax(channel_id, action, env.request.headers) end email = user.email case action when "action_create_subscription_to_channel" if !user.subscriptions.includes? channel_id get_channel(channel_id, PG_DB, false, false) PG_DB.exec("UPDATE users SET feed_needs_update = true, subscriptions = array_append(subscriptions, $1) WHERE email = $2", channel_id, email) end when "action_remove_subscriptions" PG_DB.exec("UPDATE users SET feed_needs_update = true, subscriptions = array_remove(subscriptions, $1) WHERE email = $2", channel_id, email) else next error_json(400, "Unsupported action #{action}") end if redirect env.redirect referer else env.response.content_type = "application/json" "{}" end end get "/subscription_manager" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env) if !user next env.redirect referer end user = user.as(User) if !user.password # Refresh account headers = HTTP::Headers.new headers["Cookie"] = env.request.headers["Cookie"] user, sid = get_user(sid, headers, PG_DB) end action_takeout = env.params.query["action_takeout"]?.try &.to_i? action_takeout ||= 0 action_takeout = action_takeout == 1 format = env.params.query["format"]? format ||= "rss" if user.subscriptions.empty? values = "'{}'" else values = "VALUES #{user.subscriptions.map { |id| %(('#{id}')) }.join(",")}" end subscriptions = PG_DB.query_all("SELECT * FROM channels WHERE id = ANY(#{values})", as: InvidiousChannel) subscriptions.sort_by! { |channel| channel.author.downcase } if action_takeout if format == "json" env.response.content_type = "application/json" env.response.headers["content-disposition"] = "attachment" playlists = PG_DB.query_all("SELECT * FROM playlists WHERE author = $1 AND id LIKE 'IV%' ORDER BY created", user.email, as: InvidiousPlaylist) next JSON.build do |json| json.object do json.field "subscriptions", user.subscriptions json.field "watch_history", user.watched json.field "preferences", user.preferences json.field "playlists" do json.array do playlists.each do |playlist| json.object do json.field "title", playlist.title json.field "description", html_to_content(playlist.description_html) json.field "privacy", playlist.privacy.to_s json.field "videos" do json.array do PG_DB.query_all("SELECT id FROM playlist_videos WHERE plid = $1 ORDER BY array_position($2, index) LIMIT 500", playlist.id, playlist.index, as: String).each do |video_id| json.string video_id end end end end end end end end end else env.response.content_type = "application/xml" env.response.headers["content-disposition"] = "attachment" export = XML.build do |xml| xml.element("opml", version: "1.1") do xml.element("body") do if format == "newpipe" title = "YouTube Subscriptions" else title = "Invidious Subscriptions" end xml.element("outline", text: title, title: title) do subscriptions.each do |channel| if format == "newpipe" xmlUrl = "https://www.youtube.com/feeds/videos.xml?channel_id=#{channel.id}" else xmlUrl = "#{HOST_URL}/feed/channel/#{channel.id}" end xml.element("outline", text: channel.author, title: channel.author, "type": "rss", xmlUrl: xmlUrl) end end end end end next export.gsub(%(\n), "") end end templated "subscription_manager" end get "/data_control" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" referer = get_referer(env) if !user next env.redirect referer end user = user.as(User) templated "data_control" end post "/data_control" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" referer = get_referer(env) if user user = user.as(User) # TODO: Find a way to prevent browser timeout HTTP::FormData.parse(env.request) do |part| body = part.body.gets_to_end next if body.empty? # TODO: Unify into single import based on content-type case part.name when "import_invidious" body = JSON.parse(body) if body["subscriptions"]? user.subscriptions += body["subscriptions"].as_a.map { |a| a.as_s } user.subscriptions.uniq! user.subscriptions = get_batch_channels(user.subscriptions, PG_DB, false, false) PG_DB.exec("UPDATE users SET feed_needs_update = true, subscriptions = $1 WHERE email = $2", user.subscriptions, user.email) end if body["watch_history"]? user.watched += body["watch_history"].as_a.map { |a| a.as_s } user.watched.uniq! PG_DB.exec("UPDATE users SET watched = $1 WHERE email = $2", user.watched, user.email) end if body["preferences"]? user.preferences = Preferences.from_json(body["preferences"].to_json) PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", user.preferences.to_json, user.email) end if playlists = body["playlists"]?.try &.as_a? playlists.each do |item| title = item["title"]?.try &.as_s?.try &.delete("<>") description = item["description"]?.try &.as_s?.try &.delete("\r") privacy = item["privacy"]?.try &.as_s?.try { |privacy| PlaylistPrivacy.parse? privacy } next if !title next if !description next if !privacy playlist = create_playlist(PG_DB, title, privacy, user) PG_DB.exec("UPDATE playlists SET description = $1 WHERE id = $2", description, playlist.id) videos = item["videos"]?.try &.as_a?.try &.each_with_index do |video_id, idx| raise InfoException.new("Playlist cannot have more than 500 videos") if idx > 500 video_id = video_id.try &.as_s? next if !video_id begin video = get_video(video_id, PG_DB) rescue ex next end playlist_video = PlaylistVideo.new({ title: video.title, id: video.id, author: video.author, ucid: video.ucid, length_seconds: video.length_seconds, published: video.published, plid: playlist.id, live_now: video.live_now, index: Random::Secure.rand(0_i64..Int64::MAX), }) video_array = playlist_video.to_a args = arg_array(video_array) PG_DB.exec("INSERT INTO playlist_videos VALUES (#{args})", args: video_array) PG_DB.exec("UPDATE playlists SET index = array_append(index, $1), video_count = cardinality(index) + 1, updated = $2 WHERE id = $3", playlist_video.index, Time.utc, playlist.id) end end end when "import_youtube" if body[0..4] == "[a-zA-Z0-9_-]{24})"/).map do |md| md["channel_id"] end user.subscriptions.uniq! user.subscriptions = get_batch_channels(user.subscriptions, PG_DB, false, false) PG_DB.exec("UPDATE users SET feed_needs_update = true, subscriptions = $1 WHERE email = $2", user.subscriptions, user.email) when "import_newpipe_subscriptions" body = JSON.parse(body) user.subscriptions += body["subscriptions"].as_a.compact_map do |channel| if match = channel["url"].as_s.match(/\/channel\/(?UC[a-zA-Z0-9_-]{22})/) next match["channel"] elsif match = channel["url"].as_s.match(/\/user\/(?.+)/) response = YT_POOL.client &.get("/user/#{match["user"]}?disable_polymer=1&hl=en&gl=US") html = XML.parse_html(response.body) ucid = html.xpath_node(%q(//link[@rel="canonical"])).try &.["href"].split("/")[-1] next ucid if ucid end nil end user.subscriptions.uniq! user.subscriptions = get_batch_channels(user.subscriptions, PG_DB, false, false) PG_DB.exec("UPDATE users SET feed_needs_update = true, subscriptions = $1 WHERE email = $2", user.subscriptions, user.email) when "import_newpipe" Compress::Zip::Reader.open(IO::Memory.new(body)) do |file| file.each_entry do |entry| if entry.filename == "newpipe.db" tempfile = File.tempfile(".db") File.write(tempfile.path, entry.io.gets_to_end) db = DB.open("sqlite3://" + tempfile.path) user.watched += db.query_all("SELECT url FROM streams", as: String).map { |url| url.lchop("https://www.youtube.com/watch?v=") } user.watched.uniq! PG_DB.exec("UPDATE users SET watched = $1 WHERE email = $2", user.watched, user.email) user.subscriptions += db.query_all("SELECT url FROM subscriptions", as: String).map { |url| url.lchop("https://www.youtube.com/channel/") } user.subscriptions.uniq! user.subscriptions = get_batch_channels(user.subscriptions, PG_DB, false, false) PG_DB.exec("UPDATE users SET feed_needs_update = true, subscriptions = $1 WHERE email = $2", user.subscriptions, user.email) db.close tempfile.delete end end end else nil # Ignore end end end env.redirect referer end get "/change_password" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env) if !user next env.redirect referer end user = user.as(User) sid = sid.as(String) csrf_token = generate_response(sid, {":change_password"}, HMAC_KEY, PG_DB) templated "change_password" end post "/change_password" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env) if !user next env.redirect referer end user = user.as(User) sid = sid.as(String) token = env.params.body["csrf_token"]? # We don't store passwords for Google accounts if !user.password next error_template(400, "Cannot change password for Google accounts") end begin validate_request(token, sid, env.request, HMAC_KEY, PG_DB, locale) rescue ex next error_template(400, ex) end password = env.params.body["password"]? if !password next error_template(401, "Password is a required field") end new_passwords = env.params.body.select { |k, v| k.match(/^new_password\[\d+\]$/) }.map { |k, v| v } if new_passwords.size <= 1 || new_passwords.uniq.size != 1 next error_template(400, "New passwords must match") end new_password = new_passwords.uniq[0] if new_password.empty? next error_template(401, "Password cannot be empty") end if new_password.bytesize > 55 next error_template(400, "Password cannot be longer than 55 characters") end if !Crypto::Bcrypt::Password.new(user.password.not_nil!).verify(password.byte_slice(0, 55)) next error_template(401, "Incorrect password") end new_password = Crypto::Bcrypt::Password.create(new_password, cost: 10) PG_DB.exec("UPDATE users SET password = $1 WHERE email = $2", new_password.to_s, user.email) env.redirect referer end get "/delete_account" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env) if !user next env.redirect referer end user = user.as(User) sid = sid.as(String) csrf_token = generate_response(sid, {":delete_account"}, HMAC_KEY, PG_DB) templated "delete_account" end post "/delete_account" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env) if !user next env.redirect referer end user = user.as(User) sid = sid.as(String) token = env.params.body["csrf_token"]? begin validate_request(token, sid, env.request, HMAC_KEY, PG_DB, locale) rescue ex next error_template(400, ex) end view_name = "subscriptions_#{sha256(user.email)}" PG_DB.exec("DELETE FROM users * WHERE email = $1", user.email) PG_DB.exec("DELETE FROM session_ids * WHERE email = $1", user.email) PG_DB.exec("DROP MATERIALIZED VIEW #{view_name}") env.request.cookies.each do |cookie| cookie.expires = Time.utc(1990, 1, 1) env.response.cookies << cookie end env.redirect referer end get "/clear_watch_history" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env) if !user next env.redirect referer end user = user.as(User) sid = sid.as(String) csrf_token = generate_response(sid, {":clear_watch_history"}, HMAC_KEY, PG_DB) templated "clear_watch_history" end post "/clear_watch_history" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env) if !user next env.redirect referer end user = user.as(User) sid = sid.as(String) token = env.params.body["csrf_token"]? begin validate_request(token, sid, env.request, HMAC_KEY, PG_DB, locale) rescue ex next error_template(400, ex) end PG_DB.exec("UPDATE users SET watched = '{}' WHERE email = $1", user.email) env.redirect referer end get "/authorize_token" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env) if !user next env.redirect referer end user = user.as(User) sid = sid.as(String) csrf_token = generate_response(sid, {":authorize_token"}, HMAC_KEY, PG_DB) scopes = env.params.query["scopes"]?.try &.split(",") scopes ||= [] of String callback_url = env.params.query["callback_url"]? if callback_url callback_url = URI.parse(callback_url) end expire = env.params.query["expire"]?.try &.to_i? templated "authorize_token" end post "/authorize_token" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env) if !user next env.redirect referer end user = env.get("user").as(User) sid = sid.as(String) token = env.params.body["csrf_token"]? begin validate_request(token, sid, env.request, HMAC_KEY, PG_DB, locale) rescue ex next error_template(400, ex) end scopes = env.params.body.select { |k, v| k.match(/^scopes\[\d+\]$/) }.map { |k, v| v } callback_url = env.params.body["callbackUrl"]? expire = env.params.body["expire"]?.try &.to_i? access_token = generate_token(user.email, scopes, expire, HMAC_KEY, PG_DB) if callback_url access_token = URI.encode_www_form(access_token) url = URI.parse(callback_url) if url.query query = HTTP::Params.parse(url.query.not_nil!) else query = HTTP::Params.new end query["token"] = access_token url.query = query.to_s env.redirect url.to_s else csrf_token = "" env.set "access_token", access_token templated "authorize_token" end end get "/token_manager" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env, "/subscription_manager") if !user next env.redirect referer end user = user.as(User) tokens = PG_DB.query_all("SELECT id, issued FROM session_ids WHERE email = $1 ORDER BY issued DESC", user.email, as: {session: String, issued: Time}) templated "token_manager" end post "/token_ajax" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env) redirect = env.params.query["redirect"]? redirect ||= "true" redirect = redirect == "true" if !user if redirect next env.redirect referer else next error_json(403, "No such user") end end user = user.as(User) sid = sid.as(String) token = env.params.body["csrf_token"]? begin validate_request(token, sid, env.request, HMAC_KEY, PG_DB, locale) rescue ex if redirect next error_template(400, ex) else next error_json(400, ex) end end if env.params.query["action_revoke_token"]? action = "action_revoke_token" else next env.redirect referer end session = env.params.query["session"]? session ||= "" case action when .starts_with? "action_revoke_token" PG_DB.exec("DELETE FROM session_ids * WHERE id = $1 AND email = $2", session, user.email) else next error_json(400, "Unsupported action #{action}") end if redirect env.redirect referer else env.response.content_type = "application/json" "{}" end end # Feeds get "/feed/playlists" do |env| env.redirect "/view_all_playlists" end get "/feed/top" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? message = translate(locale, "The Top feed has been removed from Invidious.") templated "message" end get "/feed/popular" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? if CONFIG.popular_enabled templated "popular" else message = translate(locale, "The Popular feed has been disabled by the administrator.") templated "message" end end get "/feed/trending" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? trending_type = env.params.query["type"]? trending_type ||= "Default" region = env.params.query["region"]? region ||= "US" begin trending, plid = fetch_trending(trending_type, region, locale) rescue ex next error_template(500, ex) end templated "trending" end get "/feed/subscriptions" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" sid = env.get? "sid" referer = get_referer(env) if !user next env.redirect referer end user = user.as(User) sid = sid.as(String) token = user.token if user.preferences.unseen_only env.set "show_watched", true end # Refresh account headers = HTTP::Headers.new headers["Cookie"] = env.request.headers["Cookie"] if !user.password user, sid = get_user(sid, headers, PG_DB) end max_results = env.params.query["max_results"]?.try &.to_i?.try &.clamp(0, MAX_ITEMS_PER_PAGE) max_results ||= user.preferences.max_results max_results ||= CONFIG.default_user_preferences.max_results page = env.params.query["page"]?.try &.to_i? page ||= 1 videos, notifications = get_subscription_feed(PG_DB, user, max_results, page) # "updated" here is used for delivering new notifications, so if # we know a user has looked at their feed e.g. in the past 10 minutes, # they've already seen a video posted 20 minutes ago, and don't need # to be notified. PG_DB.exec("UPDATE users SET notifications = $1, updated = $2 WHERE email = $3", [] of String, Time.utc, user.email) user.notifications = [] of String env.set "user", user templated "subscriptions" end get "/feed/history" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" referer = get_referer(env) page = env.params.query["page"]?.try &.to_i? page ||= 1 if !user next env.redirect referer end user = user.as(User) max_results = env.params.query["max_results"]?.try &.to_i?.try &.clamp(0, MAX_ITEMS_PER_PAGE) max_results ||= user.preferences.max_results max_results ||= CONFIG.default_user_preferences.max_results if user.watched[(page - 1) * max_results]? watched = user.watched.reverse[(page - 1) * max_results, max_results] end watched ||= [] of String templated "history" end get "/feed/channel/:ucid" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/atom+xml" ucid = env.params.url["ucid"] params = HTTP::Params.parse(env.params.query["params"]? || "") begin channel = get_about_info(ucid, locale) rescue ex : ChannelRedirect next env.redirect env.request.resource.gsub(ucid, ex.channel_id) rescue ex next error_atom(500, ex) end response = YT_POOL.client &.get("/feeds/videos.xml?channel_id=#{channel.ucid}") rss = XML.parse_html(response.body) videos = rss.xpath_nodes("//feed/entry").map do |entry| video_id = entry.xpath_node("videoid").not_nil!.content title = entry.xpath_node("title").not_nil!.content published = Time.parse_rfc3339(entry.xpath_node("published").not_nil!.content) updated = Time.parse_rfc3339(entry.xpath_node("updated").not_nil!.content) author = entry.xpath_node("author/name").not_nil!.content ucid = entry.xpath_node("channelid").not_nil!.content description_html = entry.xpath_node("group/description").not_nil!.to_s views = entry.xpath_node("group/community/statistics").not_nil!.["views"].to_i64 SearchVideo.new({ title: title, id: video_id, author: author, ucid: ucid, published: published, views: views, description_html: description_html, length_seconds: 0, live_now: false, paid: false, premium: false, premiere_timestamp: nil, }) end XML.build(indent: " ", encoding: "UTF-8") do |xml| xml.element("feed", "xmlns:yt": "http://www.youtube.com/xml/schemas/2015", "xmlns:media": "http://search.yahoo.com/mrss/", xmlns: "http://www.w3.org/2005/Atom", "xml:lang": "en-US") do xml.element("link", rel: "self", href: "#{HOST_URL}#{env.request.resource}") xml.element("id") { xml.text "yt:channel:#{channel.ucid}" } xml.element("yt:channelId") { xml.text channel.ucid } xml.element("icon") { xml.text channel.author_thumbnail } xml.element("title") { xml.text channel.author } xml.element("link", rel: "alternate", href: "#{HOST_URL}/channel/#{channel.ucid}") xml.element("author") do xml.element("name") { xml.text channel.author } xml.element("uri") { xml.text "#{HOST_URL}/channel/#{channel.ucid}" } end videos.each do |video| video.to_xml(channel.auto_generated, params, xml) end end end end get "/feed/private" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/atom+xml" token = env.params.query["token"]? if !token env.response.status_code = 403 next end user = PG_DB.query_one?("SELECT * FROM users WHERE token = $1", token.strip, as: User) if !user env.response.status_code = 403 next end max_results = env.params.query["max_results"]?.try &.to_i?.try &.clamp(0, MAX_ITEMS_PER_PAGE) max_results ||= user.preferences.max_results max_results ||= CONFIG.default_user_preferences.max_results page = env.params.query["page"]?.try &.to_i? page ||= 1 params = HTTP::Params.parse(env.params.query["params"]? || "") videos, notifications = get_subscription_feed(PG_DB, user, max_results, page) XML.build(indent: " ", encoding: "UTF-8") do |xml| xml.element("feed", "xmlns:yt": "http://www.youtube.com/xml/schemas/2015", "xmlns:media": "http://search.yahoo.com/mrss/", xmlns: "http://www.w3.org/2005/Atom", "xml:lang": "en-US") do xml.element("link", "type": "text/html", rel: "alternate", href: "#{HOST_URL}/feed/subscriptions") xml.element("link", "type": "application/atom+xml", rel: "self", href: "#{HOST_URL}#{env.request.resource}") xml.element("title") { xml.text translate(locale, "Invidious Private Feed for `x`", user.email) } (notifications + videos).each do |video| video.to_xml(locale, params, xml) end end end end get "/feed/playlist/:plid" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/atom+xml" plid = env.params.url["plid"] params = HTTP::Params.parse(env.params.query["params"]? || "") path = env.request.path if plid.starts_with? "IV" if playlist = PG_DB.query_one?("SELECT * FROM playlists WHERE id = $1", plid, as: InvidiousPlaylist) videos = get_playlist_videos(PG_DB, playlist, offset: 0, locale: locale) next XML.build(indent: " ", encoding: "UTF-8") do |xml| xml.element("feed", "xmlns:yt": "http://www.youtube.com/xml/schemas/2015", "xmlns:media": "http://search.yahoo.com/mrss/", xmlns: "http://www.w3.org/2005/Atom", "xml:lang": "en-US") do xml.element("link", rel: "self", href: "#{HOST_URL}#{env.request.resource}") xml.element("id") { xml.text "iv:playlist:#{plid}" } xml.element("iv:playlistId") { xml.text plid } xml.element("title") { xml.text playlist.title } xml.element("link", rel: "alternate", href: "#{HOST_URL}/playlist?list=#{plid}") xml.element("author") do xml.element("name") { xml.text playlist.author } end videos.each do |video| video.to_xml(false, xml) end end end else env.response.status_code = 404 next end end response = YT_POOL.client &.get("/feeds/videos.xml?playlist_id=#{plid}") document = XML.parse(response.body) document.xpath_nodes(%q(//*[@href]|//*[@url])).each do |node| node.attributes.each do |attribute| case attribute.name when "url", "href" request_target = URI.parse(node[attribute.name]).request_target query_string_opt = request_target.starts_with?("/watch?v=") ? "&#{params}" : "" node[attribute.name] = "#{HOST_URL}#{request_target}#{query_string_opt}" else nil # Skip end end end document = document.to_xml(options: XML::SaveOptions::NO_DECL) document.scan(/(?[^<]+)<\/uri>/).each do |match| content = "#{HOST_URL}#{URI.parse(match["url"]).request_target}" document = document.gsub(match[0], "#{content}") end document end get "/feeds/videos.xml" do |env| if ucid = env.params.query["channel_id"]? env.redirect "/feed/channel/#{ucid}" elsif user = env.params.query["user"]? env.redirect "/feed/channel/#{user}" elsif plid = env.params.query["playlist_id"]? env.redirect "/feed/playlist/#{plid}" end end # Support push notifications via PubSubHubbub get "/feed/webhook/:token" do |env| verify_token = env.params.url["token"] mode = env.params.query["hub.mode"]? topic = env.params.query["hub.topic"]? challenge = env.params.query["hub.challenge"]? if !mode || !topic || !challenge env.response.status_code = 400 next else mode = mode.not_nil! topic = topic.not_nil! challenge = challenge.not_nil! end case verify_token when .starts_with? "v1" _, time, nonce, signature = verify_token.split(":") data = "#{time}:#{nonce}" when .starts_with? "v2" time, signature = verify_token.split(":") data = "#{time}" else env.response.status_code = 400 next end # The hub will sometimes check if we're still subscribed after delivery errors, # so we reply with a 200 as long as the request hasn't expired if Time.utc.to_unix - time.to_i > 432000 env.response.status_code = 400 next end if OpenSSL::HMAC.hexdigest(:sha1, HMAC_KEY, data) != signature env.response.status_code = 400 next end if ucid = HTTP::Params.parse(URI.parse(topic).query.not_nil!)["channel_id"]? PG_DB.exec("UPDATE channels SET subscribed = $1 WHERE id = $2", Time.utc, ucid) elsif plid = HTTP::Params.parse(URI.parse(topic).query.not_nil!)["playlist_id"]? PG_DB.exec("UPDATE playlists SET subscribed = $1 WHERE id = $2", Time.utc, ucid) else env.response.status_code = 400 next end env.response.status_code = 200 challenge end post "/feed/webhook/:token" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? token = env.params.url["token"] body = env.request.body.not_nil!.gets_to_end signature = env.request.headers["X-Hub-Signature"].lchop("sha1=") if signature != OpenSSL::HMAC.hexdigest(:sha1, HMAC_KEY, body) LOGGER.error("/feed/webhook/#{token} : Invalid signature") env.response.status_code = 200 next end spawn do rss = XML.parse_html(body) rss.xpath_nodes("//feed/entry").each do |entry| id = entry.xpath_node("videoid").not_nil!.content author = entry.xpath_node("author/name").not_nil!.content published = Time.parse_rfc3339(entry.xpath_node("published").not_nil!.content) updated = Time.parse_rfc3339(entry.xpath_node("updated").not_nil!.content) video = get_video(id, PG_DB, force_refresh: true) # Deliver notifications to `/api/v1/auth/notifications` payload = { "topic" => video.ucid, "videoId" => video.id, "published" => published.to_unix, }.to_json PG_DB.exec("NOTIFY notifications, E'#{payload}'") video = ChannelVideo.new({ id: id, title: video.title, published: published, updated: updated, ucid: video.ucid, author: author, length_seconds: video.length_seconds, live_now: video.live_now, premiere_timestamp: video.premiere_timestamp, views: video.views, }) was_insert = PG_DB.query_one("INSERT INTO channel_videos VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10) ON CONFLICT (id) DO UPDATE SET title = $2, published = $3, updated = $4, ucid = $5, author = $6, length_seconds = $7, live_now = $8, premiere_timestamp = $9, views = $10 returning (xmax=0) as was_insert", *video.to_tuple, as: Bool) PG_DB.exec("UPDATE users SET notifications = array_append(notifications, $1), feed_needs_update = true WHERE $2 = ANY(subscriptions)", video.id, video.ucid) if was_insert end end env.response.status_code = 200 next end # Channels {"/channel/:ucid/live", "/user/:user/live", "/c/:user/live"}.each do |route| get route do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? # Appears to be a bug in routing, having several routes configured # as `/a/:a`, `/b/:a`, `/c/:a` results in 404 value = env.request.resource.split("/")[2] body = "" {"channel", "user", "c"}.each do |type| response = YT_POOL.client &.get("/#{type}/#{value}/live?disable_polymer=1") if response.status_code == 200 body = response.body end end video_id = body.match(/'VIDEO_ID': "(?[a-zA-Z0-9_-]{11})"/).try &.["id"]? if video_id params = [] of String env.params.query.each do |k, v| params << "#{k}=#{v}" end params = params.join("&") url = "/watch?v=#{video_id}" if !params.empty? url += "&#{params}" end env.redirect url else env.redirect "/channel/#{value}" end end end # YouTube appears to let users set a "brand" URL that # is different from their username, so we convert that here get "/c/:user" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.params.url["user"] response = YT_POOL.client &.get("/c/#{user}") html = XML.parse_html(response.body) ucid = html.xpath_node(%q(//link[@rel="canonical"])).try &.["href"].split("/")[-1] next env.redirect "/" if !ucid env.redirect "/channel/#{ucid}" end # Legacy endpoint for /user/:username get "/profile" do |env| user = env.params.query["user"]? if !user env.redirect "/" else env.redirect "/user/#{user}" end end get "/attribution_link" do |env| if query = env.params.query["u"]? url = URI.parse(query).request_target else url = "/" end env.redirect url end get "/user/:user" do |env| user = env.params.url["user"] env.redirect "/channel/#{user}" end get "/user/:user/videos" do |env| user = env.params.url["user"] env.redirect "/channel/#{user}/videos" end get "/user/:user/about" do |env| user = env.params.url["user"] env.redirect "/channel/#{user}" end # API Endpoints get "/api/v1/stats" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" if !CONFIG.statistics_enabled next error_json(400, "Statistics are not enabled.") end Invidious::Jobs::StatisticsRefreshJob::STATISTICS.to_json end # YouTube provides "storyboards", which are sprites containing x * y # preview thumbnails for individual scenes in a video. # See https://support.jwplayer.com/articles/how-to-add-preview-thumbnails get "/api/v1/storyboards/:id" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" id = env.params.url["id"] region = env.params.query["region"]? begin video = get_video(id, PG_DB, region: region) rescue ex : VideoRedirect env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id) next error_json(302, "Video is unavailable", {"videoId" => ex.video_id}) rescue ex env.response.status_code = 500 next end storyboards = video.storyboards width = env.params.query["width"]? height = env.params.query["height"]? if !width && !height response = JSON.build do |json| json.object do json.field "storyboards" do generate_storyboards(json, id, storyboards) end end end next response end env.response.content_type = "text/vtt" storyboard = storyboards.select { |storyboard| width == "#{storyboard[:width]}" || height == "#{storyboard[:height]}" } if storyboard.empty? env.response.status_code = 404 next else storyboard = storyboard[0] end String.build do |str| str << <<-END_VTT WEBVTT END_VTT start_time = 0.milliseconds end_time = storyboard[:interval].milliseconds storyboard[:storyboard_count].times do |i| url = storyboard[:url] authority = /(i\d?).ytimg.com/.match(url).not_nil![1]? url = url.gsub("$M", i).gsub(%r(https://i\d?.ytimg.com/sb/), "") url = "#{HOST_URL}/sb/#{authority}/#{url}" storyboard[:storyboard_height].times do |j| storyboard[:storyboard_width].times do |k| str << <<-END_CUE #{start_time}.000 --> #{end_time}.000 #{url}#xywh=#{storyboard[:width] * k},#{storyboard[:height] * j},#{storyboard[:width] - 2},#{storyboard[:height]} END_CUE start_time += storyboard[:interval].milliseconds end_time += storyboard[:interval].milliseconds end end end end end get "/api/v1/captions/:id" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" id = env.params.url["id"] region = env.params.query["region"]? # See https://github.com/ytdl-org/youtube-dl/blob/6ab30ff50bf6bd0585927cb73c7421bef184f87a/youtube_dl/extractor/youtube.py#L1354 # It is possible to use `/api/timedtext?type=list&v=#{id}` and # `/api/timedtext?type=track&v=#{id}&lang=#{lang_code}` directly, # but this does not provide links for auto-generated captions. # # In future this should be investigated as an alternative, since it does not require # getting video info. begin video = get_video(id, PG_DB, region: region) rescue ex : VideoRedirect env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id) next error_json(302, "Video is unavailable", {"videoId" => ex.video_id}) rescue ex env.response.status_code = 500 next end captions = video.captions label = env.params.query["label"]? lang = env.params.query["lang"]? tlang = env.params.query["tlang"]? if !label && !lang response = JSON.build do |json| json.object do json.field "captions" do json.array do captions.each do |caption| json.object do json.field "label", caption.name.simpleText json.field "languageCode", caption.languageCode json.field "url", "/api/v1/captions/#{id}?label=#{URI.encode_www_form(caption.name.simpleText)}" end end end end end end next response end env.response.content_type = "text/vtt; charset=UTF-8" if lang caption = captions.select { |caption| caption.languageCode == lang } else caption = captions.select { |caption| caption.name.simpleText == label } end if caption.empty? env.response.status_code = 404 next else caption = caption[0] end url = URI.parse("#{caption.baseUrl}&tlang=#{tlang}").request_target # Auto-generated captions often have cues that aren't aligned properly with the video, # as well as some other markup that makes it cumbersome, so we try to fix that here if caption.name.simpleText.includes? "auto-generated" caption_xml = YT_POOL.client &.get(url).body caption_xml = XML.parse(caption_xml) webvtt = String.build do |str| str << <<-END_VTT WEBVTT Kind: captions Language: #{tlang || caption.languageCode} END_VTT caption_nodes = caption_xml.xpath_nodes("//transcript/text") caption_nodes.each_with_index do |node, i| start_time = node["start"].to_f.seconds duration = node["dur"]?.try &.to_f.seconds duration ||= start_time if caption_nodes.size > i + 1 end_time = caption_nodes[i + 1]["start"].to_f.seconds else end_time = start_time + duration end start_time = "#{start_time.hours.to_s.rjust(2, '0')}:#{start_time.minutes.to_s.rjust(2, '0')}:#{start_time.seconds.to_s.rjust(2, '0')}.#{start_time.milliseconds.to_s.rjust(3, '0')}" end_time = "#{end_time.hours.to_s.rjust(2, '0')}:#{end_time.minutes.to_s.rjust(2, '0')}:#{end_time.seconds.to_s.rjust(2, '0')}.#{end_time.milliseconds.to_s.rjust(3, '0')}" text = HTML.unescape(node.content) text = text.gsub(//, "") text = text.gsub(/<\/font>/, "") if md = text.match(/(?.*) : (?.*)/) text = "#{md["text"]}" end str << <<-END_CUE #{start_time} --> #{end_time} #{text} END_CUE end end else webvtt = YT_POOL.client &.get("#{url}&format=vtt").body end if title = env.params.query["title"]? # https://blog.fastmail.com/2011/06/24/download-non-english-filenames/ env.response.headers["Content-Disposition"] = "attachment; filename=\"#{URI.encode_www_form(title)}\"; filename*=UTF-8''#{URI.encode_www_form(title)}" end webvtt end get "/api/v1/comments/:id" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? region = env.params.query["region"]? env.response.content_type = "application/json" id = env.params.url["id"] source = env.params.query["source"]? source ||= "youtube" thin_mode = env.params.query["thin_mode"]? thin_mode = thin_mode == "true" format = env.params.query["format"]? format ||= "json" action = env.params.query["action"]? action ||= "action_get_comments" continuation = env.params.query["continuation"]? sort_by = env.params.query["sort_by"]?.try &.downcase if source == "youtube" sort_by ||= "top" begin comments = fetch_youtube_comments(id, PG_DB, continuation, format, locale, thin_mode, region, sort_by: sort_by, action: action) rescue ex next error_json(500, ex) end next comments elsif source == "reddit" sort_by ||= "confidence" begin comments, reddit_thread = fetch_reddit_comments(id, sort_by: sort_by) content_html = template_reddit_comments(comments, locale) content_html = fill_links(content_html, "https", "www.reddit.com") content_html = replace_links(content_html) rescue ex comments = nil reddit_thread = nil content_html = "" end if !reddit_thread || !comments env.response.status_code = 404 next end if format == "json" reddit_thread = JSON.parse(reddit_thread.to_json).as_h reddit_thread["comments"] = JSON.parse(comments.to_json) next reddit_thread.to_json else response = { "title" => reddit_thread.title, "permalink" => reddit_thread.permalink, "contentHtml" => content_html, } next response.to_json end end end get "/api/v1/insights/:id" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? next error_json(410, "YouTube has removed publicly available analytics.") end get "/api/v1/annotations/:id" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "text/xml" id = env.params.url["id"] source = env.params.query["source"]? source ||= "archive" if !id.match(/[a-zA-Z0-9_-]{11}/) env.response.status_code = 400 next end annotations = "" case source when "archive" if CONFIG.cache_annotations && (cached_annotation = PG_DB.query_one?("SELECT * FROM annotations WHERE id = $1", id, as: Annotation)) annotations = cached_annotation.annotations else index = CHARS_SAFE.index(id[0]).not_nil!.to_s.rjust(2, '0') # IA doesn't handle leading hyphens, # so we use https://archive.org/details/youtubeannotations_64 if index == "62" index = "64" id = id.sub(/^-/, 'A') end file = URI.encode_www_form("#{id[0, 3]}/#{id}.xml") location = make_client(ARCHIVE_URL, &.get("/download/youtubeannotations_#{index}/#{id[0, 2]}.tar/#{file}")) if !location.headers["Location"]? env.response.status_code = location.status_code end response = make_client(URI.parse(location.headers["Location"]), &.get(location.headers["Location"])) if response.body.empty? env.response.status_code = 404 next end if response.status_code != 200 env.response.status_code = response.status_code next end annotations = response.body cache_annotation(PG_DB, id, annotations) end else # "youtube" response = YT_POOL.client &.get("/annotations_invideo?video_id=#{id}") if response.status_code != 200 env.response.status_code = response.status_code next end annotations = response.body end etag = sha256(annotations)[0, 16] if env.request.headers["If-None-Match"]?.try &.== etag env.response.status_code = 304 else env.response.headers["ETag"] = etag annotations end end get "/api/v1/videos/:id" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" id = env.params.url["id"] region = env.params.query["region"]? begin video = get_video(id, PG_DB, region: region) rescue ex : VideoRedirect env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id) next error_json(302, "Video is unavailable", {"videoId" => ex.video_id}) rescue ex next error_json(500, ex) end video.to_json(locale) end get "/api/v1/trending" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" region = env.params.query["region"]? trending_type = env.params.query["type"]? begin trending, plid = fetch_trending(trending_type, region, locale) rescue ex next error_json(500, ex) end videos = JSON.build do |json| json.array do trending.each do |video| video.to_json(locale, json) end end end videos end get "/api/v1/popular" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" if !CONFIG.popular_enabled error_message = {"error" => "Administrator has disabled this endpoint."}.to_json env.response.status_code = 400 next error_message end JSON.build do |json| json.array do popular_videos.each do |video| video.to_json(locale, json) end end end end get "/api/v1/top" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" env.response.status_code = 400 {"error" => "The Top feed has been removed from Invidious."}.to_json end get "/api/v1/channels/:ucid" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" ucid = env.params.url["ucid"] sort_by = env.params.query["sort_by"]?.try &.downcase sort_by ||= "newest" begin channel = get_about_info(ucid, locale) rescue ex : ChannelRedirect env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id) next error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id}) rescue ex next error_json(500, ex) end page = 1 if channel.auto_generated videos = [] of SearchVideo count = 0 else begin count, videos = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by) rescue ex next error_json(500, ex) end end JSON.build do |json| # TODO: Refactor into `to_json` for InvidiousChannel json.object do json.field "author", channel.author json.field "authorId", channel.ucid json.field "authorUrl", channel.author_url json.field "authorBanners" do json.array do if channel.banner qualities = { {width: 2560, height: 424}, {width: 2120, height: 351}, {width: 1060, height: 175}, } qualities.each do |quality| json.object do json.field "url", channel.banner.not_nil!.gsub("=w1060-", "=w#{quality[:width]}-") json.field "width", quality[:width] json.field "height", quality[:height] end end json.object do json.field "url", channel.banner.not_nil!.split("=w1060-")[0] json.field "width", 512 json.field "height", 288 end end end end json.field "authorThumbnails" do json.array do qualities = {32, 48, 76, 100, 176, 512} qualities.each do |quality| json.object do json.field "url", channel.author_thumbnail.gsub(/=s\d+/, "=s#{quality}") json.field "width", quality json.field "height", quality end end end end json.field "subCount", channel.sub_count json.field "totalViews", channel.total_views json.field "joined", channel.joined.to_unix json.field "paid", channel.paid json.field "autoGenerated", channel.auto_generated json.field "isFamilyFriendly", channel.is_family_friendly json.field "description", html_to_content(channel.description_html) json.field "descriptionHtml", channel.description_html json.field "allowedRegions", channel.allowed_regions json.field "external_links", channel.links json.field "country", channel.country json.field "latestVideos" do json.array do videos.each do |video| video.to_json(locale, json) end end end json.field "relatedChannels" do json.array do channel.related_channels.each do |related_channel| json.object do json.field "author", related_channel.author json.field "authorId", related_channel.ucid json.field "authorUrl", related_channel.author_url json.field "authorThumbnails" do json.array do qualities = {32, 48, 76, 100, 176, 512} qualities.each do |quality| json.object do json.field "url", related_channel.author_thumbnail.gsub(/=\d+/, "=s#{quality}") json.field "width", quality json.field "height", quality end end end end end end end end end end end {"/api/v1/channels/:ucid/videos", "/api/v1/channels/videos/:ucid"}.each do |route| get route do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" ucid = env.params.url["ucid"] page = env.params.query["page"]?.try &.to_i? page ||= 1 sort_by = env.params.query["sort"]?.try &.downcase sort_by ||= env.params.query["sort_by"]?.try &.downcase sort_by ||= "newest" begin channel = get_about_info(ucid, locale) rescue ex : ChannelRedirect env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id) next error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id}) rescue ex next error_json(500, ex) end begin count, videos = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by) rescue ex next error_json(500, ex) end JSON.build do |json| json.array do videos.each do |video| video.to_json(locale, json) end end end end end {"/api/v1/channels/:ucid/latest", "/api/v1/channels/latest/:ucid"}.each do |route| get route do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" ucid = env.params.url["ucid"] begin videos = get_latest_videos(ucid) rescue ex next error_json(500, ex) end JSON.build do |json| json.array do videos.each do |video| video.to_json(locale, json) end end end end end {"/api/v1/channels/:ucid/playlists", "/api/v1/channels/playlists/:ucid"}.each do |route| get route do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" ucid = env.params.url["ucid"] continuation = env.params.query["continuation"]? sort_by = env.params.query["sort"]?.try &.downcase || env.params.query["sort_by"]?.try &.downcase || "last" begin channel = get_about_info(ucid, locale) rescue ex : ChannelRedirect env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id) next error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id}) rescue ex next error_json(500, ex) end items, continuation = fetch_channel_playlists(channel.ucid, channel.author, continuation, sort_by) JSON.build do |json| json.object do json.field "playlists" do json.array do items.each do |item| item.to_json(locale, json) if item.is_a?(SearchPlaylist) end end end json.field "continuation", continuation end end end end {"/api/v1/channels/:ucid/comments", "/api/v1/channels/comments/:ucid"}.each do |route| get route do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" ucid = env.params.url["ucid"] thin_mode = env.params.query["thin_mode"]? thin_mode = thin_mode == "true" format = env.params.query["format"]? format ||= "json" continuation = env.params.query["continuation"]? # sort_by = env.params.query["sort_by"]?.try &.downcase begin fetch_channel_community(ucid, continuation, locale, format, thin_mode) rescue ex next error_json(500, ex) end end end get "/api/v1/channels/search/:ucid" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" ucid = env.params.url["ucid"] query = env.params.query["q"]? query ||= "" page = env.params.query["page"]?.try &.to_i? page ||= 1 count, search_results = channel_search(query, page, ucid) JSON.build do |json| json.array do search_results.each do |item| item.to_json(locale, json) end end end end get "/api/v1/search" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? region = env.params.query["region"]? env.response.content_type = "application/json" query = env.params.query["q"]? query ||= "" page = env.params.query["page"]?.try &.to_i? page ||= 1 sort_by = env.params.query["sort_by"]?.try &.downcase sort_by ||= "relevance" date = env.params.query["date"]?.try &.downcase date ||= "" duration = env.params.query["duration"]?.try &.downcase duration ||= "" features = env.params.query["features"]?.try &.split(",").map { |feature| feature.downcase } features ||= [] of String content_type = env.params.query["type"]?.try &.downcase content_type ||= "video" begin search_params = produce_search_params(page, sort_by, date, content_type, duration, features) rescue ex next error_json(400, ex) end count, search_results = search(query, search_params, region).as(Tuple) JSON.build do |json| json.array do search_results.each do |item| item.to_json(locale, json) end end end end get "/api/v1/search/suggestions" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? region = env.params.query["region"]? env.response.content_type = "application/json" query = env.params.query["q"]? query ||= "" begin headers = HTTP::Headers{":authority" => "suggestqueries.google.com"} response = YT_POOL.client &.get("/complete/search?hl=en&gl=#{region}&client=youtube&ds=yt&q=#{URI.encode_www_form(query)}&callback=suggestCallback", headers).body body = response[35..-2] body = JSON.parse(body).as_a suggestions = body[1].as_a[0..-2] JSON.build do |json| json.object do json.field "query", body[0].as_s json.field "suggestions" do json.array do suggestions.each do |suggestion| json.string suggestion[0].as_s end end end end end rescue ex next error_json(500, ex) end end {"/api/v1/playlists/:plid", "/api/v1/auth/playlists/:plid"}.each do |route| get route do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" plid = env.params.url["plid"] offset = env.params.query["index"]?.try &.to_i? offset ||= env.params.query["page"]?.try &.to_i?.try { |page| (page - 1) * 100 } offset ||= 0 continuation = env.params.query["continuation"]? format = env.params.query["format"]? format ||= "json" if plid.starts_with? "RD" next env.redirect "/api/v1/mixes/#{plid}" end begin playlist = get_playlist(PG_DB, plid, locale) rescue ex : InfoException next error_json(404, ex) rescue ex next error_json(404, "Playlist does not exist.") end user = env.get?("user").try &.as(User) if !playlist || playlist.privacy.private? && playlist.author != user.try &.email next error_json(404, "Playlist does not exist.") end response = playlist.to_json(offset, locale, continuation: continuation) if format == "html" response = JSON.parse(response) playlist_html = template_playlist(response) index, next_video = response["videos"].as_a.skip(1).select { |video| !video["author"].as_s.empty? }[0]?.try { |v| {v["index"], v["videoId"]} } || {nil, nil} response = { "playlistHtml" => playlist_html, "index" => index, "nextVideo" => next_video, }.to_json end response end end get "/api/v1/mixes/:rdid" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" rdid = env.params.url["rdid"] continuation = env.params.query["continuation"]? continuation ||= rdid.lchop("RD")[0, 11] format = env.params.query["format"]? format ||= "json" begin mix = fetch_mix(rdid, continuation, locale: locale) if !rdid.ends_with? continuation mix = fetch_mix(rdid, mix.videos[1].id) index = mix.videos.index(mix.videos.select { |video| video.id == continuation }[0]?) end mix.videos = mix.videos[index..-1] rescue ex next error_json(500, ex) end response = JSON.build do |json| json.object do json.field "title", mix.title json.field "mixId", mix.id json.field "videos" do json.array do mix.videos.each do |video| json.object do json.field "title", video.title json.field "videoId", video.id json.field "author", video.author json.field "authorId", video.ucid json.field "authorUrl", "/channel/#{video.ucid}" json.field "videoThumbnails" do json.array do generate_thumbnails(json, video.id) end end json.field "index", video.index json.field "lengthSeconds", video.length_seconds end end end end end end if format == "html" response = JSON.parse(response) playlist_html = template_mix(response) next_video = response["videos"].as_a.select { |video| !video["author"].as_s.empty? }[0]?.try &.["videoId"] response = { "playlistHtml" => playlist_html, "nextVideo" => next_video, }.to_json end response end # Authenticated endpoints get "/api/v1/auth/notifications" do |env| env.response.content_type = "text/event-stream" topics = env.params.query["topics"]?.try &.split(",").uniq.first(1000) topics ||= [] of String create_notification_stream(env, topics, connection_channel) end post "/api/v1/auth/notifications" do |env| env.response.content_type = "text/event-stream" topics = env.params.body["topics"]?.try &.split(",").uniq.first(1000) topics ||= [] of String create_notification_stream(env, topics, connection_channel) end get "/api/v1/auth/preferences" do |env| env.response.content_type = "application/json" user = env.get("user").as(User) user.preferences.to_json end post "/api/v1/auth/preferences" do |env| env.response.content_type = "application/json" user = env.get("user").as(User) begin preferences = Preferences.from_json(env.request.body || "{}") rescue preferences = user.preferences end PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", preferences.to_json, user.email) env.response.status_code = 204 end get "/api/v1/auth/feed" do |env| env.response.content_type = "application/json" user = env.get("user").as(User) locale = LOCALES[env.get("preferences").as(Preferences).locale]? max_results = env.params.query["max_results"]?.try &.to_i? max_results ||= user.preferences.max_results max_results ||= CONFIG.default_user_preferences.max_results page = env.params.query["page"]?.try &.to_i? page ||= 1 videos, notifications = get_subscription_feed(PG_DB, user, max_results, page) JSON.build do |json| json.object do json.field "notifications" do json.array do notifications.each do |video| video.to_json(locale, json) end end end json.field "videos" do json.array do videos.each do |video| video.to_json(locale, json) end end end end end end get "/api/v1/auth/subscriptions" do |env| env.response.content_type = "application/json" user = env.get("user").as(User) if user.subscriptions.empty? values = "'{}'" else values = "VALUES #{user.subscriptions.map { |id| %(('#{id}')) }.join(",")}" end subscriptions = PG_DB.query_all("SELECT * FROM channels WHERE id = ANY(#{values})", as: InvidiousChannel) JSON.build do |json| json.array do subscriptions.each do |subscription| json.object do json.field "author", subscription.author json.field "authorId", subscription.id end end end end end post "/api/v1/auth/subscriptions/:ucid" do |env| env.response.content_type = "application/json" user = env.get("user").as(User) ucid = env.params.url["ucid"] if !user.subscriptions.includes? ucid get_channel(ucid, PG_DB, false, false) PG_DB.exec("UPDATE users SET feed_needs_update = true, subscriptions = array_append(subscriptions,$1) WHERE email = $2", ucid, user.email) end # For Google accounts, access tokens don't have enough information to # make a request on the user's behalf, which is why we don't sync with # YouTube. env.response.status_code = 204 end delete "/api/v1/auth/subscriptions/:ucid" do |env| env.response.content_type = "application/json" user = env.get("user").as(User) ucid = env.params.url["ucid"] PG_DB.exec("UPDATE users SET feed_needs_update = true, subscriptions = array_remove(subscriptions, $1) WHERE email = $2", ucid, user.email) env.response.status_code = 204 end get "/api/v1/auth/playlists" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" user = env.get("user").as(User) playlists = PG_DB.query_all("SELECT * FROM playlists WHERE author = $1", user.email, as: InvidiousPlaylist) JSON.build do |json| json.array do playlists.each do |playlist| playlist.to_json(0, locale, json) end end end end post "/api/v1/auth/playlists" do |env| env.response.content_type = "application/json" user = env.get("user").as(User) locale = LOCALES[env.get("preferences").as(Preferences).locale]? title = env.params.json["title"]?.try &.as(String).delete("<>").byte_slice(0, 150) if !title next error_json(400, "Invalid title.") end privacy = env.params.json["privacy"]?.try { |privacy| PlaylistPrivacy.parse(privacy.as(String).downcase) } if !privacy next error_json(400, "Invalid privacy setting.") end if PG_DB.query_one("SELECT count(*) FROM playlists WHERE author = $1", user.email, as: Int64) >= 100 next error_json(400, "User cannot have more than 100 playlists.") end playlist = create_playlist(PG_DB, title, privacy, user) env.response.headers["Location"] = "#{HOST_URL}/api/v1/auth/playlists/#{playlist.id}" env.response.status_code = 201 { "title" => title, "playlistId" => playlist.id, }.to_json end patch "/api/v1/auth/playlists/:plid" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" user = env.get("user").as(User) plid = env.params.url["plid"] playlist = PG_DB.query_one?("SELECT * FROM playlists WHERE id = $1", plid, as: InvidiousPlaylist) if !playlist || playlist.author != user.email && playlist.privacy.private? next error_json(404, "Playlist does not exist.") end if playlist.author != user.email next error_json(403, "Invalid user") end title = env.params.json["title"].try &.as(String).delete("<>").byte_slice(0, 150) || playlist.title privacy = env.params.json["privacy"]?.try { |privacy| PlaylistPrivacy.parse(privacy.as(String).downcase) } || playlist.privacy description = env.params.json["description"]?.try &.as(String).delete("\r") || playlist.description if title != playlist.title || privacy != playlist.privacy || description != playlist.description updated = Time.utc else updated = playlist.updated end PG_DB.exec("UPDATE playlists SET title = $1, privacy = $2, description = $3, updated = $4 WHERE id = $5", title, privacy, description, updated, plid) env.response.status_code = 204 end delete "/api/v1/auth/playlists/:plid" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" user = env.get("user").as(User) plid = env.params.url["plid"] playlist = PG_DB.query_one?("SELECT * FROM playlists WHERE id = $1", plid, as: InvidiousPlaylist) if !playlist || playlist.author != user.email && playlist.privacy.private? next error_json(404, "Playlist does not exist.") end if playlist.author != user.email next error_json(403, "Invalid user") end PG_DB.exec("DELETE FROM playlist_videos * WHERE plid = $1", plid) PG_DB.exec("DELETE FROM playlists * WHERE id = $1", plid) env.response.status_code = 204 end post "/api/v1/auth/playlists/:plid/videos" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" user = env.get("user").as(User) plid = env.params.url["plid"] playlist = PG_DB.query_one?("SELECT * FROM playlists WHERE id = $1", plid, as: InvidiousPlaylist) if !playlist || playlist.author != user.email && playlist.privacy.private? next error_json(404, "Playlist does not exist.") end if playlist.author != user.email next error_json(403, "Invalid user") end if playlist.index.size >= 500 next error_json(400, "Playlist cannot have more than 500 videos") end video_id = env.params.json["videoId"].try &.as(String) if !video_id next error_json(403, "Invalid videoId") end begin video = get_video(video_id, PG_DB) rescue ex next error_json(500, ex) end playlist_video = PlaylistVideo.new({ title: video.title, id: video.id, author: video.author, ucid: video.ucid, length_seconds: video.length_seconds, published: video.published, plid: plid, live_now: video.live_now, index: Random::Secure.rand(0_i64..Int64::MAX), }) video_array = playlist_video.to_a args = arg_array(video_array) PG_DB.exec("INSERT INTO playlist_videos VALUES (#{args})", args: video_array) PG_DB.exec("UPDATE playlists SET index = array_append(index, $1), video_count = cardinality(index) + 1, updated = $2 WHERE id = $3", playlist_video.index, Time.utc, plid) env.response.headers["Location"] = "#{HOST_URL}/api/v1/auth/playlists/#{plid}/videos/#{playlist_video.index.to_u64.to_s(16).upcase}" env.response.status_code = 201 playlist_video.to_json(locale, index: playlist.index.size) end delete "/api/v1/auth/playlists/:plid/videos/:index" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" user = env.get("user").as(User) plid = env.params.url["plid"] index = env.params.url["index"].to_i64(16) playlist = PG_DB.query_one?("SELECT * FROM playlists WHERE id = $1", plid, as: InvidiousPlaylist) if !playlist || playlist.author != user.email && playlist.privacy.private? next error_json(404, "Playlist does not exist.") end if playlist.author != user.email next error_json(403, "Invalid user") end if !playlist.index.includes? index next error_json(404, "Playlist does not contain index") end PG_DB.exec("DELETE FROM playlist_videos * WHERE index = $1", index) PG_DB.exec("UPDATE playlists SET index = array_remove(index, $1), video_count = cardinality(index) - 1, updated = $2 WHERE id = $3", index, Time.utc, plid) env.response.status_code = 204 end # patch "/api/v1/auth/playlists/:plid/videos/:index" do |env| # TODO: Playlist stub # end get "/api/v1/auth/tokens" do |env| env.response.content_type = "application/json" user = env.get("user").as(User) scopes = env.get("scopes").as(Array(String)) tokens = PG_DB.query_all("SELECT id, issued FROM session_ids WHERE email = $1", user.email, as: {session: String, issued: Time}) JSON.build do |json| json.array do tokens.each do |token| json.object do json.field "session", token[:session] json.field "issued", token[:issued].to_unix end end end end end post "/api/v1/auth/tokens/register" do |env| user = env.get("user").as(User) locale = LOCALES[env.get("preferences").as(Preferences).locale]? case env.request.headers["Content-Type"]? when "application/x-www-form-urlencoded" scopes = env.params.body.select { |k, v| k.match(/^scopes\[\d+\]$/) }.map { |k, v| v } callback_url = env.params.body["callbackUrl"]? expire = env.params.body["expire"]?.try &.to_i? when "application/json" scopes = env.params.json["scopes"].as(Array).map { |v| v.as_s } callback_url = env.params.json["callbackUrl"]?.try &.as(String) expire = env.params.json["expire"]?.try &.as(Int64) else next error_json(400, "Invalid or missing header 'Content-Type'") end if callback_url && callback_url.empty? callback_url = nil end if callback_url callback_url = URI.parse(callback_url) end if sid = env.get?("sid").try &.as(String) env.response.content_type = "text/html" csrf_token = generate_response(sid, {":authorize_token"}, HMAC_KEY, PG_DB, use_nonce: true) next templated "authorize_token" else env.response.content_type = "application/json" superset_scopes = env.get("scopes").as(Array(String)) authorized_scopes = [] of String scopes.each do |scope| if scopes_include_scope(superset_scopes, scope) authorized_scopes << scope end end access_token = generate_token(user.email, authorized_scopes, expire, HMAC_KEY, PG_DB) if callback_url access_token = URI.encode_www_form(access_token) if query = callback_url.query query = HTTP::Params.parse(query.not_nil!) else query = HTTP::Params.new end query["token"] = access_token callback_url.query = query.to_s env.redirect callback_url.to_s else access_token end end end post "/api/v1/auth/tokens/unregister" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/json" user = env.get("user").as(User) scopes = env.get("scopes").as(Array(String)) session = env.params.json["session"]?.try &.as(String) session ||= env.get("session").as(String) # Allow tokens to revoke other tokens with correct scope if session == env.get("session").as(String) PG_DB.exec("DELETE FROM session_ids * WHERE id = $1", session) elsif scopes_include_scope(scopes, "GET:tokens") PG_DB.exec("DELETE FROM session_ids * WHERE id = $1", session) else next error_json(400, "Cannot revoke session #{session}") end env.response.status_code = 204 end get "/api/manifest/dash/id/videoplayback" do |env| env.response.headers.delete("Content-Type") env.response.headers["Access-Control-Allow-Origin"] = "*" env.redirect "/videoplayback?#{env.params.query}" end get "/api/manifest/dash/id/videoplayback/*" do |env| env.response.headers.delete("Content-Type") env.response.headers["Access-Control-Allow-Origin"] = "*" env.redirect env.request.path.lchop("/api/manifest/dash/id") end get "/api/manifest/dash/id/:id" do |env| env.response.headers.add("Access-Control-Allow-Origin", "*") env.response.content_type = "application/dash+xml" local = env.params.query["local"]?.try &.== "true" id = env.params.url["id"] region = env.params.query["region"]? # Since some implementations create playlists based on resolution regardless of different codecs, # we can opt to only add a source to a representation if it has a unique height within that representation unique_res = env.params.query["unique_res"]?.try { |q| (q == "true" || q == "1").to_unsafe } begin video = get_video(id, PG_DB, region: region) rescue ex : VideoRedirect next env.redirect env.request.resource.gsub(id, ex.video_id) rescue ex env.response.status_code = 403 next end if dashmpd = video.dash_manifest_url manifest = YT_POOL.client &.get(URI.parse(dashmpd).request_target).body manifest = manifest.gsub(/[^<]+<\/BaseURL>/) do |baseurl| url = baseurl.lchop("") url = url.rchop("") if local uri = URI.parse(url) url = "#{uri.request_target}host/#{uri.host}/" end "#{url}" end next manifest end adaptive_fmts = video.adaptive_fmts if local adaptive_fmts.each do |fmt| fmt["url"] = JSON::Any.new(URI.parse(fmt["url"].as_s).request_target) end end audio_streams = video.audio_streams video_streams = video.video_streams.sort_by { |stream| {stream["width"].as_i, stream["fps"].as_i} }.reverse XML.build(indent: " ", encoding: "UTF-8") do |xml| xml.element("MPD", "xmlns": "urn:mpeg:dash:schema:mpd:2011", "profiles": "urn:mpeg:dash:profile:full:2011", minBufferTime: "PT1.5S", type: "static", mediaPresentationDuration: "PT#{video.length_seconds}S") do xml.element("Period") do i = 0 {"audio/mp4", "audio/webm"}.each do |mime_type| mime_streams = audio_streams.select { |stream| stream["mimeType"].as_s.starts_with? mime_type } next if mime_streams.empty? xml.element("AdaptationSet", id: i, mimeType: mime_type, startWithSAP: 1, subsegmentAlignment: true) do mime_streams.each do |fmt| codecs = fmt["mimeType"].as_s.split("codecs=")[1].strip('"') bandwidth = fmt["bitrate"].as_i itag = fmt["itag"].as_i url = fmt["url"].as_s xml.element("Representation", id: fmt["itag"], codecs: codecs, bandwidth: bandwidth) do xml.element("AudioChannelConfiguration", schemeIdUri: "urn:mpeg:dash:23003:3:audio_channel_configuration:2011", value: "2") xml.element("BaseURL") { xml.text url } xml.element("SegmentBase", indexRange: "#{fmt["indexRange"]["start"]}-#{fmt["indexRange"]["end"]}") do xml.element("Initialization", range: "#{fmt["initRange"]["start"]}-#{fmt["initRange"]["end"]}") end end end end i += 1 end potential_heights = {4320, 2160, 1440, 1080, 720, 480, 360, 240, 144} {"video/mp4", "video/webm"}.each do |mime_type| mime_streams = video_streams.select { |stream| stream["mimeType"].as_s.starts_with? mime_type } next if mime_streams.empty? heights = [] of Int32 xml.element("AdaptationSet", id: i, mimeType: mime_type, startWithSAP: 1, subsegmentAlignment: true, scanType: "progressive") do mime_streams.each do |fmt| codecs = fmt["mimeType"].as_s.split("codecs=")[1].strip('"') bandwidth = fmt["bitrate"].as_i itag = fmt["itag"].as_i url = fmt["url"].as_s width = fmt["width"].as_i height = fmt["height"].as_i # Resolutions reported by YouTube player (may not accurately reflect source) height = potential_heights.min_by { |i| (height - i).abs } next if unique_res && heights.includes? height heights << height xml.element("Representation", id: itag, codecs: codecs, width: width, height: height, startWithSAP: "1", maxPlayoutRate: "1", bandwidth: bandwidth, frameRate: fmt["fps"]) do xml.element("BaseURL") { xml.text url } xml.element("SegmentBase", indexRange: "#{fmt["indexRange"]["start"]}-#{fmt["indexRange"]["end"]}") do xml.element("Initialization", range: "#{fmt["initRange"]["start"]}-#{fmt["initRange"]["end"]}") end end end end i += 1 end end end end end get "/api/manifest/hls_variant/*" do |env| response = YT_POOL.client &.get(env.request.path) if response.status_code != 200 env.response.status_code = response.status_code next end local = env.params.query["local"]?.try &.== "true" env.response.content_type = "application/x-mpegURL" env.response.headers.add("Access-Control-Allow-Origin", "*") manifest = response.body if local manifest = manifest.gsub("https://www.youtube.com", HOST_URL) manifest = manifest.gsub("index.m3u8", "index.m3u8?local=true") end manifest end get "/api/manifest/hls_playlist/*" do |env| response = YT_POOL.client &.get(env.request.path) if response.status_code != 200 env.response.status_code = response.status_code next end local = env.params.query["local"]?.try &.== "true" env.response.content_type = "application/x-mpegURL" env.response.headers.add("Access-Control-Allow-Origin", "*") manifest = response.body if local manifest = manifest.gsub(/^https:\/\/r\d---.{11}\.c\.youtube\.com[^\n]*/m) do |match| path = URI.parse(match).path path = path.lchop("/videoplayback/") path = path.rchop("/") path = path.gsub(/mime\/\w+\/\w+/) do |mimetype| mimetype = mimetype.split("/") mimetype[0] + "/" + mimetype[1] + "%2F" + mimetype[2] end path = path.split("/") raw_params = {} of String => Array(String) path.each_slice(2) do |pair| key, value = pair value = URI.decode_www_form(value) if raw_params[key]? raw_params[key] << value else raw_params[key] = [value] end end raw_params = HTTP::Params.new(raw_params) if fvip = raw_params["hls_chunk_host"].match(/r(?\d+)---/) raw_params["fvip"] = fvip["fvip"] end raw_params["local"] = "true" "#{HOST_URL}/videoplayback?#{raw_params}" end end manifest end # YouTube /videoplayback links expire after 6 hours, # so we have a mechanism here to redirect to the latest version get "/latest_version" do |env| if env.params.query["download_widget"]? download_widget = JSON.parse(env.params.query["download_widget"]) id = download_widget["id"].as_s title = download_widget["title"].as_s if label = download_widget["label"]? env.redirect "/api/v1/captions/#{id}?label=#{label}&title=#{title}" next else itag = download_widget["itag"].as_s.to_i local = "true" end end id ||= env.params.query["id"]? itag ||= env.params.query["itag"]?.try &.to_i region = env.params.query["region"]? local ||= env.params.query["local"]? local ||= "false" local = local == "true" if !id || !itag env.response.status_code = 400 next end video = get_video(id, PG_DB, region: region) fmt = video.fmt_stream.find(nil) { |f| f["itag"].as_i == itag } || video.adaptive_fmts.find(nil) { |f| f["itag"].as_i == itag } url = fmt.try &.["url"]?.try &.as_s if !url env.response.status_code = 404 next end url = URI.parse(url).request_target.not_nil! if local url = "#{url}&title=#{title}" if title env.redirect url end options "/videoplayback" do |env| env.response.headers.delete("Content-Type") env.response.headers["Access-Control-Allow-Origin"] = "*" env.response.headers["Access-Control-Allow-Methods"] = "GET, OPTIONS" env.response.headers["Access-Control-Allow-Headers"] = "Content-Type, Range" end options "/videoplayback/*" do |env| env.response.headers.delete("Content-Type") env.response.headers["Access-Control-Allow-Origin"] = "*" env.response.headers["Access-Control-Allow-Methods"] = "GET, OPTIONS" env.response.headers["Access-Control-Allow-Headers"] = "Content-Type, Range" end options "/api/manifest/dash/id/videoplayback" do |env| env.response.headers.delete("Content-Type") env.response.headers["Access-Control-Allow-Origin"] = "*" env.response.headers["Access-Control-Allow-Methods"] = "GET, OPTIONS" env.response.headers["Access-Control-Allow-Headers"] = "Content-Type, Range" end options "/api/manifest/dash/id/videoplayback/*" do |env| env.response.headers.delete("Content-Type") env.response.headers["Access-Control-Allow-Origin"] = "*" env.response.headers["Access-Control-Allow-Methods"] = "GET, OPTIONS" env.response.headers["Access-Control-Allow-Headers"] = "Content-Type, Range" end get "/videoplayback/*" do |env| path = env.request.path path = path.lchop("/videoplayback/") path = path.rchop("/") path = path.gsub(/mime\/\w+\/\w+/) do |mimetype| mimetype = mimetype.split("/") mimetype[0] + "/" + mimetype[1] + "%2F" + mimetype[2] end path = path.split("/") raw_params = {} of String => Array(String) path.each_slice(2) do |pair| key, value = pair value = URI.decode_www_form(value) if raw_params[key]? raw_params[key] << value else raw_params[key] = [value] end end query_params = HTTP::Params.new(raw_params) env.response.headers["Access-Control-Allow-Origin"] = "*" env.redirect "/videoplayback?#{query_params}" end get "/videoplayback" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? query_params = env.params.query fvip = query_params["fvip"]? || "3" mns = query_params["mn"]?.try &.split(",") mns ||= [] of String if query_params["region"]? region = query_params["region"] query_params.delete("region") end if query_params["host"]? && !query_params["host"].empty? host = "https://#{query_params["host"]}" query_params.delete("host") else host = "https://r#{fvip}---#{mns.pop}.googlevideo.com" end url = "/videoplayback?#{query_params.to_s}" headers = HTTP::Headers.new REQUEST_HEADERS_WHITELIST.each do |header| if env.request.headers[header]? headers[header] = env.request.headers[header] end end client = make_client(URI.parse(host), region) response = HTTP::Client::Response.new(500) error = "" 5.times do begin response = client.head(url, headers) if response.headers["Location"]? location = URI.parse(response.headers["Location"]) env.response.headers["Access-Control-Allow-Origin"] = "*" new_host = "#{location.scheme}://#{location.host}" if new_host != host host = new_host client.close client = make_client(URI.parse(new_host), region) end url = "#{location.request_target}&host=#{location.host}#{region ? "®ion=#{region}" : ""}" else break end rescue Socket::Addrinfo::Error if !mns.empty? mn = mns.pop end fvip = "3" host = "https://r#{fvip}---#{mn}.googlevideo.com" client = make_client(URI.parse(host), region) rescue ex error = ex.message end end if response.status_code >= 400 env.response.status_code = response.status_code env.response.content_type = "text/plain" next error end if url.includes? "&file=seg.ts" if CONFIG.disabled?("livestreams") next error_template(403, "Administrator has disabled this endpoint.") end begin client.get(url, headers) do |response| response.headers.each do |key, value| if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) env.response.headers[key] = value end end env.response.headers["Access-Control-Allow-Origin"] = "*" if location = response.headers["Location"]? location = URI.parse(location) location = "#{location.request_target}&host=#{location.host}" if region location += "®ion=#{region}" end next env.redirect location end IO.copy(response.body_io, env.response) end rescue ex end else if query_params["title"]? && CONFIG.disabled?("downloads") || CONFIG.disabled?("dash") next error_template(403, "Administrator has disabled this endpoint.") end content_length = nil first_chunk = true range_start, range_end = parse_range(env.request.headers["Range"]?) chunk_start = range_start chunk_end = range_end if !chunk_end || chunk_end - chunk_start > HTTP_CHUNK_SIZE chunk_end = chunk_start + HTTP_CHUNK_SIZE - 1 end # TODO: Record bytes written so we can restart after a chunk fails while true if !range_end && content_length range_end = content_length end if range_end && chunk_start > range_end break end if range_end && chunk_end > range_end chunk_end = range_end end headers["Range"] = "bytes=#{chunk_start}-#{chunk_end}" begin client.get(url, headers) do |response| if first_chunk if !env.request.headers["Range"]? && response.status_code == 206 env.response.status_code = 200 else env.response.status_code = response.status_code end response.headers.each do |key, value| if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) && key.downcase != "content-range" env.response.headers[key] = value end end env.response.headers["Access-Control-Allow-Origin"] = "*" if location = response.headers["Location"]? location = URI.parse(location) location = "#{location.request_target}&host=#{location.host}#{region ? "®ion=#{region}" : ""}" env.redirect location break end if title = query_params["title"]? # https://blog.fastmail.com/2011/06/24/download-non-english-filenames/ env.response.headers["Content-Disposition"] = "attachment; filename=\"#{URI.encode_www_form(title)}\"; filename*=UTF-8''#{URI.encode_www_form(title)}" end if !response.headers.includes_word?("Transfer-Encoding", "chunked") content_length = response.headers["Content-Range"].split("/")[-1].to_i64 if env.request.headers["Range"]? env.response.headers["Content-Range"] = "bytes #{range_start}-#{range_end || (content_length - 1)}/#{content_length}" env.response.content_length = ((range_end.try &.+ 1) || content_length) - range_start else env.response.content_length = content_length end end end proxy_file(response, env) end rescue ex if ex.message != "Error reading socket: Connection reset by peer" break else client.close client = make_client(URI.parse(host), region) end end chunk_start = chunk_end + 1 chunk_end += HTTP_CHUNK_SIZE first_chunk = false end end client.close end get "/ggpht/*" do |env| url = env.request.path.lchop("/ggpht") headers = HTTP::Headers{":authority" => "yt3.ggpht.com"} REQUEST_HEADERS_WHITELIST.each do |header| if env.request.headers[header]? headers[header] = env.request.headers[header] end end begin YT_POOL.client &.get(url, headers) do |response| env.response.status_code = response.status_code response.headers.each do |key, value| if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) env.response.headers[key] = value end end env.response.headers["Access-Control-Allow-Origin"] = "*" if response.status_code >= 300 env.response.headers.delete("Transfer-Encoding") break end proxy_file(response, env) end rescue ex end end options "/sb/:authority/:id/:storyboard/:index" do |env| env.response.headers["Access-Control-Allow-Origin"] = "*" env.response.headers["Access-Control-Allow-Methods"] = "GET, OPTIONS" env.response.headers["Access-Control-Allow-Headers"] = "Content-Type, Range" end get "/sb/:authority/:id/:storyboard/:index" do |env| authority = env.params.url["authority"] id = env.params.url["id"] storyboard = env.params.url["storyboard"] index = env.params.url["index"] url = "/sb/#{id}/#{storyboard}/#{index}?#{env.params.query}" headers = HTTP::Headers.new headers[":authority"] = "#{authority}.ytimg.com" REQUEST_HEADERS_WHITELIST.each do |header| if env.request.headers[header]? headers[header] = env.request.headers[header] end end begin YT_POOL.client &.get(url, headers) do |response| env.response.status_code = response.status_code response.headers.each do |key, value| if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) env.response.headers[key] = value end end env.response.headers["Connection"] = "close" env.response.headers["Access-Control-Allow-Origin"] = "*" if response.status_code >= 300 env.response.headers.delete("Transfer-Encoding") break end proxy_file(response, env) end rescue ex end end get "/s_p/:id/:name" do |env| id = env.params.url["id"] name = env.params.url["name"] url = env.request.resource headers = HTTP::Headers{":authority" => "i9.ytimg.com"} REQUEST_HEADERS_WHITELIST.each do |header| if env.request.headers[header]? headers[header] = env.request.headers[header] end end begin YT_POOL.client &.get(url, headers) do |response| env.response.status_code = response.status_code response.headers.each do |key, value| if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) env.response.headers[key] = value end end env.response.headers["Access-Control-Allow-Origin"] = "*" if response.status_code >= 300 && response.status_code != 404 env.response.headers.delete("Transfer-Encoding") break end proxy_file(response, env) end rescue ex end end get "/yts/img/:name" do |env| headers = HTTP::Headers.new REQUEST_HEADERS_WHITELIST.each do |header| if env.request.headers[header]? headers[header] = env.request.headers[header] end end begin YT_POOL.client &.get(env.request.resource, headers) do |response| env.response.status_code = response.status_code response.headers.each do |key, value| if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) env.response.headers[key] = value end end env.response.headers["Access-Control-Allow-Origin"] = "*" if response.status_code >= 300 && response.status_code != 404 env.response.headers.delete("Transfer-Encoding") break end proxy_file(response, env) end rescue ex end end get "/vi/:id/:name" do |env| id = env.params.url["id"] name = env.params.url["name"] headers = HTTP::Headers{":authority" => "i.ytimg.com"} if name == "maxres.jpg" build_thumbnails(id).each do |thumb| if YT_POOL.client &.head("/vi/#{id}/#{thumb[:url]}.jpg", headers).status_code == 200 name = thumb[:url] + ".jpg" break end end end url = "/vi/#{id}/#{name}" REQUEST_HEADERS_WHITELIST.each do |header| if env.request.headers[header]? headers[header] = env.request.headers[header] end end begin YT_POOL.client &.get(url, headers) do |response| env.response.status_code = response.status_code response.headers.each do |key, value| if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) env.response.headers[key] = value end end env.response.headers["Access-Control-Allow-Origin"] = "*" if response.status_code >= 300 && response.status_code != 404 env.response.headers.delete("Transfer-Encoding") break end proxy_file(response, env) end rescue ex end end get "/fetch_link_favicon" do |env| url = env.params.query["url"] url = URI.parse(url) if url.host.to_s.ends_with?("gstatic.com") # headers = HTTP::Headers{"Content-Encoding" => "gzip"} headers = HTTP::Headers{} of String => String REQUEST_HEADERS_WHITELIST.each do |header| if env.request.headers[header]? headers[header] = env.request.headers[header] end end begin HTTP::Client.get(url.to_s, headers) do |favicon_response| env.response.status_code = favicon_response.status_code favicon_response.headers.each do |key, value| if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) env.response.headers[key] = value break end end env.response.headers["Access-Control-Allow-Origin"] = "*" proxy_file(favicon_response, env) end rescue ex end end end get "/Captcha" do |env| headers = HTTP::Headers{":authority" => "accounts.google.com"} response = YT_POOL.client &.get(env.request.resource, headers) env.response.headers["Content-Type"] = response.headers["Content-Type"] response.body end # Undocumented, creates anonymous playlist with specified 'video_ids', max 50 videos get "/watch_videos" do |env| response = YT_POOL.client &.get(env.request.resource) if url = response.headers["Location"]? url = URI.parse(url).request_target next env.redirect url end env.response.status_code = response.status_code end error 404 do |env| if md = env.request.path.match(/^\/(?([a-zA-Z0-9_-]{11})|(\w+))$/) item = md["id"] # Check if item is branding URL e.g. https://youtube.com/gaming response = YT_POOL.client &.get("/#{item}") if response.status_code == 301 response = YT_POOL.client &.get(URI.parse(response.headers["Location"]).request_target) end if response.body.empty? env.response.headers["Location"] = "/" halt env, status_code: 302 end html = XML.parse_html(response.body) ucid = html.xpath_node(%q(//link[@rel="canonical"])).try &.["href"].split("/")[-1] if ucid env.response.headers["Location"] = "/channel/#{ucid}" halt env, status_code: 302 end params = [] of String env.params.query.each do |k, v| params << "#{k}=#{v}" end params = params.join("&") url = "/watch?v=#{item}" if !params.empty? url += "&#{params}" end # Check if item is video ID if item.match(/^[a-zA-Z0-9_-]{11}$/) && YT_POOL.client &.head("/watch?v=#{item}").status_code != 404 env.response.headers["Location"] = url halt env, status_code: 302 end end env.response.headers["Location"] = "/" halt env, status_code: 302 end error 500 do |env, ex| locale = LOCALES[env.get("preferences").as(Preferences).locale]? error_template(500, ex) end static_headers do |response, filepath, filestat| response.headers.add("Cache-Control", "max-age=2629800") end public_folder "assets" Kemal.config.powered_by_header = false add_handler FilteredCompressHandler.new add_handler APIHandler.new add_handler AuthHandler.new add_handler DenyFrame.new add_context_storage_type(Array(String)) add_context_storage_type(Preferences) add_context_storage_type(User) Kemal.config.logger = LOGGER Kemal.config.host_binding = Kemal.config.host_binding != "0.0.0.0" ? Kemal.config.host_binding : CONFIG.host_binding Kemal.config.port = Kemal.config.port != 3000 ? Kemal.config.port : CONFIG.port Kemal.run