# "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 "zip" require "./invidious/helpers/*" require "./invidious/*" CONFIG = Config.from_yaml(File.read("config/config.yml")) HMAC_KEY = CONFIG.hmac_key || Random::Secure.hex(32) PG_URL = URI.new( scheme: "postgres", user: CONFIG.db.user, password: CONFIG.db.password, host: CONFIG.db.host, port: CONFIG.db.port, path: CONFIG.db.dbname, ) PG_DB = DB.open PG_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("http://textcaptcha.com") YT_URL = URI.parse("https://www.youtube.com") 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", "Connection", "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 describe --tags --abbrev=0`.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}", } LOCALES = { "ar" => load_locale("ar"), "de" => load_locale("de"), "el" => load_locale("el"), "en-US" => load_locale("en-US"), "eo" => load_locale("eo"), "es" => load_locale("es"), "eu" => load_locale("eu"), "fr" => load_locale("fr"), "is" => load_locale("is"), "it" => load_locale("it"), "nb_NO" => load_locale("nb_NO"), "nl" => load_locale("nl"), "pl" => load_locale("pl"), "ru" => load_locale("ru"), "tr" => load_locale("tr"), "uk" => load_locale("uk"), "zh-CN" => load_locale("zh-CN"), "zh-TW" => load_locale("zh-TW"), } config = CONFIG logger = Invidious::LogHandler.new 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: STDOUT)") do |output| FileUtils.mkdir_p(File.dirname(output)) logger = Invidious::LogHandler.new(File.open(output, mode: "a")) end parser.on("-v", "--version", "Print version") do |output| puts SOFTWARE.to_pretty_json exit end end Kemal::CLI.new ARGV # Check table integrity if CONFIG.check_tables check_enum(PG_DB, logger, "privacy", PlaylistPrivacy) check_table(PG_DB, logger, "channels", InvidiousChannel) check_table(PG_DB, logger, "channel_videos", ChannelVideo) check_table(PG_DB, logger, "playlists", InvidiousPlaylist) check_table(PG_DB, logger, "playlist_videos", PlaylistVideo) check_table(PG_DB, logger, "nonces", Nonce) check_table(PG_DB, logger, "session_ids", SessionId) check_table(PG_DB, logger, "users", User) check_table(PG_DB, logger, "videos", Video) if CONFIG.cache_annotations check_table(PG_DB, logger, "annotations", Annotation) end end # Start jobs refresh_channels(PG_DB, logger, config) refresh_feeds(PG_DB, logger, config) subscribe_to_feeds(PG_DB, logger, HMAC_KEY, config) statistics = { "error" => "Statistics are not availabile.", } if config.statistics_enabled spawn do statistics = { "version" => "2.0", "software" => SOFTWARE, "openRegistrations" => config.registration_enabled, "usage" => { "users" => { "total" => PG_DB.query_one("SELECT count(*) FROM users", as: Int64), "activeHalfyear" => PG_DB.query_one("SELECT count(*) FROM users WHERE CURRENT_TIMESTAMP - updated < '6 months'", as: Int64), "activeMonth" => PG_DB.query_one("SELECT count(*) FROM users WHERE CURRENT_TIMESTAMP - updated < '1 month'", as: Int64), }, }, "metadata" => { "updatedAt" => Time.utc.to_unix, "lastChannelRefreshedAt" => PG_DB.query_one?("SELECT updated FROM channels ORDER BY updated DESC LIMIT 1", as: Time).try &.to_unix || 0_i64, }, } loop do sleep 1.minute Fiber.yield statistics["usage"].as(Hash)["users"].as(Hash)["total"] = PG_DB.query_one("SELECT count(*) FROM users", as: Int64) statistics["usage"].as(Hash)["users"].as(Hash)["activeHalfyear"] = PG_DB.query_one("SELECT count(*) FROM users WHERE CURRENT_TIMESTAMP - updated < '6 months'", as: Int64) statistics["usage"].as(Hash)["users"].as(Hash)["activeMonth"] = PG_DB.query_one("SELECT count(*) FROM users WHERE CURRENT_TIMESTAMP - updated < '1 month'", as: Int64) statistics["metadata"].as(Hash(String, Int64))["updatedAt"] = Time.utc.to_unix statistics["metadata"].as(Hash(String, Int64))["lastChannelRefreshedAt"] = PG_DB.query_one?("SELECT updated FROM channels ORDER BY updated DESC LIMIT 1", as: Time).try &.to_unix || 0_i64 end end end top_videos = [] of Video if config.top_enabled spawn do pull_top_videos(config, PG_DB) do |videos| top_videos = videos end end end popular_videos = [] of ChannelVideo spawn do pull_popular_videos(PG_DB) do |videos| popular_videos = videos end end decrypt_function = [] of {name: String, value: Int32} spawn do update_decrypt_function do |function| decrypt_function = function end end connection_channel = Channel({Bool, Channel(PQ::Notification)}).new(32) spawn do connections = [] of Channel(PQ::Notification) PG.connect_listen(PG_URL, "notifications") { |event| connections.each { |connection| connection.send(event) } } loop do action, connection = connection_channel.receive case action when true connections << connection when false connections.delete(connection) end end end before_all do |env| host_url = make_host_url(config, Kemal.config) env.response.headers["X-XSS-Protection"] = "1; mode=block" env.response.headers["X-Content-Type-Options"] = "nosniff" env.response.headers["Content-Security-Policy"] = "default-src blob: data: 'self' #{host_url} 'unsafe-inline' 'unsafe-eval'; media-src blob: 'self' #{host_url} https://*.googlevideo.com:443" env.response.headers["Referrer-Policy"] = "same-origin" if (Kemal.config.ssl || config.https_only) && config.hsts env.response.headers["Strict-Transport-Security"] = "max-age=31536000; includeSubDomains; preload" end begin preferences = Preferences.from_json(env.request.cookies["PREFS"]?.try &.value || "{}") rescue preferences = Preferences.from_json("{}") end 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 "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 "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 get "/" do |env| preferences = env.get("preferences").as(Preferences) locale = LOCALES[preferences.locale]? user = env.get? "user" case preferences.default_home when "" templated "empty" when "Popular" templated "popular" when "Top" if config.top_enabled templated "top" else templated "empty" end when "Trending" env.redirect "/feed/trending" when "Subscriptions" if user env.redirect "/feed/subscriptions" else templated "popular" end when "Playlists" if user env.redirect "/view_all_playlists" else templated "popular" end end end get "/privacy" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? templated "privacy" end get "/licenses" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? rendered "licenses" end # Videos get "/watch" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? region = env.params.query["region"]? if env.params.query.to_s.includes?("%20") || env.params.query.to_s.includes?("+") url = "/watch?" + env.params.query.to_s.gsub("%20", "").delete("+") next env.redirect url end if env.params.query["v"]? id = env.params.query["v"] if env.params.query["v"].empty? error_message = "Invalid parameters." env.response.status_code = 400 next templated "error" end if id.size > 11 url = "/watch?v=#{id[0, 11]}" env.params.query.delete_all("v") if env.params.query.size > 0 url += "&#{env.params.query}" end next env.redirect url end else next env.redirect "/" end plid = env.params.query["list"]? continuation = process_continuation(PG_DB, env.params.query, plid, id) nojs = env.params.query["nojs"]? nojs ||= "0" nojs = nojs == "1" preferences = env.get("preferences").as(Preferences) user = env.get?("user").try &.as(User) if user subscriptions = user.subscriptions watched = user.watched notifications = user.notifications end subscriptions ||= [] of String params = process_video_params(env.params.query, preferences) env.params.query.delete_all("listen") begin video = get_video(id, PG_DB, region: params.region) rescue ex : VideoRedirect next env.redirect env.request.resource.gsub(id, ex.video_id) rescue ex error_message = ex.message env.response.status_code = 500 logger.puts("#{id} : #{ex.message}") next templated "error" end if preferences.annotations_subscribed && subscriptions.includes?(video.ucid) && (env.params.query["iv_load_policy"]? || "1") == "1" params.annotations = true end env.params.query.delete_all("iv_load_policy") if watched && !watched.includes? id PG_DB.exec("UPDATE users SET watched = watched || $1 WHERE email = $2", [id], user.as(User).email) end if notifications && notifications.includes? id PG_DB.exec("UPDATE users SET notifications = array_remove(notifications, $1) WHERE email = $2", id, user.as(User).email) env.get("user").as(User).notifications.delete(id) notifications.delete(id) end if nojs if preferences source = preferences.comments[0] if source.empty? source = preferences.comments[1] end if source == "youtube" begin comment_html = JSON.parse(fetch_youtube_comments(id, PG_DB, nil, "html", locale, preferences.thin_mode, region))["contentHtml"] rescue ex if preferences.comments[1] == "reddit" comments, reddit_thread = fetch_reddit_comments(id) comment_html = template_reddit_comments(comments, locale) comment_html = fill_links(comment_html, "https", "www.reddit.com") comment_html = replace_links(comment_html) end end elsif source == "reddit" begin comments, reddit_thread = fetch_reddit_comments(id) comment_html = template_reddit_comments(comments, locale) comment_html = fill_links(comment_html, "https", "www.reddit.com") comment_html = replace_links(comment_html) rescue ex if preferences.comments[1] == "youtube" comment_html = JSON.parse(fetch_youtube_comments(id, PG_DB, nil, "html", locale, preferences.thin_mode, region))["contentHtml"] end end end else comment_html = JSON.parse(fetch_youtube_comments(id, PG_DB, nil, "html", locale, preferences.thin_mode, region))["contentHtml"] end comment_html ||= "" end fmt_stream = video.fmt_stream(decrypt_function) adaptive_fmts = video.adaptive_fmts(decrypt_function) if params.local fmt_stream.each { |fmt| fmt["url"] = URI.parse(fmt["url"]).full_path } adaptive_fmts.each { |fmt| fmt["url"] = URI.parse(fmt["url"]).full_path } end video_streams = video.video_streams(adaptive_fmts) audio_streams = video.audio_streams(adaptive_fmts) # Older videos may not have audio sources available. # We redirect here so they're not unplayable if audio_streams.empty? && !video.live_now if params.quality == "dash" env.params.query.delete_all("quality") env.params.query["quality"] = "medium" next env.redirect "/watch?#{env.params.query}" elsif params.listen env.params.query.delete_all("listen") env.params.query["listen"] = "0" next env.redirect "/watch?#{env.params.query}" end end captions = video.captions preferred_captions = captions.select { |caption| params.preferred_captions.includes?(caption.name.simpleText) || params.preferred_captions.includes?(caption.languageCode.split("-")[0]) } preferred_captions.sort_by! { |caption| (params.preferred_captions.index(caption.name.simpleText) || params.preferred_captions.index(caption.languageCode.split("-")[0])).not_nil! } captions = captions - preferred_captions aspect_ratio = "16:9" video.description_html = fill_links(video.description_html, "https", "www.youtube.com") video.description_html = replace_links(video.description_html) host_url = make_host_url(config, Kemal.config) if video.player_response["streamingData"]?.try &.["hlsManifestUrl"]? hlsvp = video.player_response["streamingData"]["hlsManifestUrl"].as_s hlsvp = hlsvp.gsub("https://manifest.googlevideo.com", host_url) end thumbnail = "/vi/#{video.id}/maxres.jpg" if params.raw if params.listen url = audio_streams[0]["url"] audio_streams.each do |fmt| if fmt["bitrate"] == params.quality.rchop("k") url = fmt["url"] end end else url = fmt_stream[0]["url"] fmt_stream.each do |fmt| if fmt["label"].split(" - ")[0] == params.quality url = fmt["url"] end end end next env.redirect url end rvs = [] of Hash(String, String) video.info["rvs"]?.try &.split(",").each do |rv| rvs << HTTP::Params.parse(rv).to_h end rating = video.info["avg_rating"].to_f64 if video.views > 0 engagement = ((video.dislikes.to_f + video.likes.to_f)/video.views * 100) else engagement = 0 end playability_status = video.player_response["playabilityStatus"]? if playability_status && playability_status["status"] == "LIVE_STREAM_OFFLINE" && !video.premiere_timestamp reason = playability_status["reason"]?.try &.as_s end reason ||= "" templated "watch" end get "/embed/" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? if plid = env.params.query["list"]? begin playlist = get_playlist(PG_DB, plid, locale: locale) offset = env.params.query["index"]?.try &.to_i? || 0 videos = get_playlist_videos(PG_DB, playlist, offset: offset, locale: locale) rescue ex error_message = ex.message env.response.status_code = 500 next templated "error" end url = "/embed/#{videos[0].id}?#{env.params.query}" if env.params.query.size > 0 url += "?#{env.params.query}" end else url = "/" end env.redirect url end get "/embed/:id" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? id = env.params.url["id"] plid = env.params.query["list"]? continuation = process_continuation(PG_DB, env.params.query, plid, id) if md = env.params.query["playlist"]? .try &.match(/[a-zA-Z0-9_-]{11}(,[a-zA-Z0-9_-]{11})*/) video_series = md[0].split(",") env.params.query.delete("playlist") end preferences = env.get("preferences").as(Preferences) if id.includes?("%20") || id.includes?("+") || env.params.query.to_s.includes?("%20") || env.params.query.to_s.includes?("+") id = env.params.url["id"].gsub("%20", "").delete("+") url = "/embed/#{id}" if env.params.query.size > 0 url += "?#{env.params.query.to_s.gsub("%20", "").delete("+")}" end next env.redirect url end # YouTube embed supports `videoseries` with either `list=PLID` # or `playlist=VIDEO_ID,VIDEO_ID` case id when "videoseries" url = "" if plid begin playlist = get_playlist(PG_DB, plid, locale: locale) offset = env.params.query["index"]?.try &.to_i? || 0 videos = get_playlist_videos(PG_DB, playlist, offset: offset, locale: locale) rescue ex error_message = ex.message env.response.status_code = 500 next templated "error" end url = "/embed/#{videos[0].id}" elsif video_series url = "/embed/#{video_series.shift}" env.params.query["playlist"] = video_series.join(",") else next env.redirect "/" end if env.params.query.size > 0 url += "?#{env.params.query}" end next env.redirect url when "live_stream" client = make_client(YT_URL) response = client.get("/embed/live_stream?channel=#{env.params.query["channel"]? || ""}") video_id = response.body.match(/"video_id":"(?[a-zA-Z0-9_-]{11})"/).try &.["video_id"] env.params.query.delete_all("channel") if !video_id || video_id == "live_stream" error_message = "Video is unavailable." next templated "error" end url = "/embed/#{video_id}" if env.params.query.size > 0 url += "?#{env.params.query}" end next env.redirect url when id.size > 11 url = "/embed/#{id[0, 11]}" if env.params.query.size > 0 url += "?#{env.params.query}" end next env.redirect url end params = process_video_params(env.params.query, preferences) user = env.get?("user").try &.as(User) if user subscriptions = user.subscriptions watched = user.watched notifications = user.notifications end subscriptions ||= [] of String begin video = get_video(id, PG_DB, region: params.region) rescue ex : VideoRedirect next env.redirect env.request.resource.gsub(id, ex.video_id) rescue ex error_message = ex.message env.response.status_code = 500 next templated "error" end if preferences.annotations_subscribed && subscriptions.includes?(video.ucid) && (env.params.query["iv_load_policy"]? || "1") == "1" params.annotations = true end # if watched && !watched.includes? id # PG_DB.exec("UPDATE users SET watched = watched || $1 WHERE email = $2", [id], user.as(User).email) # end if notifications && notifications.includes? id PG_DB.exec("UPDATE users SET notifications = array_remove(notifications, $1) WHERE email = $2", id, user.as(User).email) env.get("user").as(User).notifications.delete(id) notifications.delete(id) end fmt_stream = video.fmt_stream(decrypt_function) adaptive_fmts = video.adaptive_fmts(decrypt_function) if params.local fmt_stream.each { |fmt| fmt["url"] = URI.parse(fmt["url"]).full_path } adaptive_fmts.each { |fmt| fmt["url"] = URI.parse(fmt["url"]).full_path } end video_streams = video.video_streams(adaptive_fmts) audio_streams = video.audio_streams(adaptive_fmts) if audio_streams.empty? && !video.live_now if params.quality == "dash" env.params.query.delete_all("quality") next env.redirect "/embed/#{id}?#{env.params.query}" elsif params.listen env.params.query.delete_all("listen") env.params.query["listen"] = "0" next env.redirect "/embed/#{id}?#{env.params.query}" end end captions = video.captions preferred_captions = captions.select { |caption| params.preferred_captions.includes?(caption.name.simpleText) || params.preferred_captions.includes?(caption.languageCode.split("-")[0]) } preferred_captions.sort_by! { |caption| (params.preferred_captions.index(caption.name.simpleText) || params.preferred_captions.index(caption.languageCode.split("-")[0])).not_nil! } captions = captions - preferred_captions aspect_ratio = nil video.description_html = fill_links(video.description_html, "https", "www.youtube.com") video.description_html = replace_links(video.description_html) host_url = make_host_url(config, Kemal.config) if video.player_response["streamingData"]?.try &.["hlsManifestUrl"]? hlsvp = video.player_response["streamingData"]["hlsManifestUrl"].as_s hlsvp = hlsvp.gsub("https://manifest.googlevideo.com", host_url) end thumbnail = "/vi/#{video.id}/maxres.jpg" if params.raw url = fmt_stream[0]["url"] fmt_stream.each do |fmt| if fmt["label"].split(" - ")[0] == params.quality url = fmt["url"] end end next env.redirect url end rendered "embed" end # Playlists get "/feed/playlists" do |env| env.redirect "/view_all_playlists" end get "/view_all_playlists" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" referer = get_referer(env) if !user next env.redirect "/" end user = user.as(User) items = PG_DB.query_all("SELECT * FROM playlists WHERE author = $1 ORDER BY created", user.email, as: InvidiousPlaylist) items.map! do |item| item.author = "" item end templated "view_all_playlists" end get "/create_playlist" 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 "/" end user = user.as(User) sid = sid.as(String) csrf_token = generate_response(sid, {":create_playlist"}, HMAC_KEY, PG_DB) templated "create_playlist" end post "/create_playlist" 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 "/" 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 error_message = ex.message env.response.status_code = 400 next templated "error" end title = env.params.body["title"]?.try &.as(String) if !title || title.empty? error_message = "Title cannot be empty." next templated "error" end privacy = PlaylistPrivacy.parse?(env.params.body["privacy"]?.try &.as(String) || "") if !privacy error_message = "Invalid privacy setting." next templated "error" end if PG_DB.query_one("SELECT count(*) FROM playlists WHERE author = $1", user.email, as: Int64) >= 100 error_message = "User cannot have more than 100 playlists." next templated "error" end playlist = create_playlist(PG_DB, title, privacy, user) env.redirect "/playlist?list=#{playlist.id}" end get "/delete_playlist" 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 "/" end user = user.as(User) sid = sid.as(String) plid = env.params.query["list"]? if !plid || !plid.starts_with?("IV") next env.redirect referer end playlist = PG_DB.query_one?("SELECT * FROM playlists WHERE id = $1", plid, as: InvidiousPlaylist) if !playlist || playlist.author != user.email next env.redirect referer end csrf_token = generate_response(sid, {":delete_playlist"}, HMAC_KEY, PG_DB) templated "delete_playlist" end post "/delete_playlist" 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 "/" end plid = env.params.query["list"]? if !plid 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 error_message = ex.message env.response.status_code = 400 next templated "error" end playlist = PG_DB.query_one?("SELECT * FROM playlists WHERE id = $1", plid, as: InvidiousPlaylist) if !playlist || playlist.author != user.email next env.redirect referer end PG_DB.exec("DELETE FROM playlist_videos * WHERE plid = $1", plid) PG_DB.exec("DELETE FROM playlists * WHERE id = $1", plid) env.redirect "/view_all_playlists" end get "/edit_playlist" 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 "/" end user = user.as(User) sid = sid.as(String) plid = env.params.query["list"]? if !plid || !plid.starts_with?("IV") next env.redirect referer end page = env.params.query["page"]?.try &.to_i? page ||= 1 begin playlist = PG_DB.query_one("SELECT * FROM playlists WHERE id = $1", plid, as: InvidiousPlaylist) if !playlist || playlist.author != user.email next env.redirect referer end rescue ex next env.redirect referer end begin videos = get_playlist_videos(PG_DB, playlist, offset: (page - 1) * 100, locale: locale) rescue ex videos = [] of PlaylistVideo end csrf_token = generate_response(sid, {":edit_playlist"}, HMAC_KEY, PG_DB) templated "edit_playlist" end post "/edit_playlist" 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 "/" end plid = env.params.query["list"]? if !plid 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 error_message = ex.message env.response.status_code = 400 next templated "error" end playlist = PG_DB.query_one?("SELECT * FROM playlists WHERE id = $1", plid, as: InvidiousPlaylist) if !playlist || playlist.author != user.email next env.redirect referer end title = env.params.body["title"]?.try &.delete("<>") || "" privacy = PlaylistPrivacy.parse(env.params.body["privacy"]? || "Public") description = env.params.body["description"]?.try &.delete("\r") || "" 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.redirect "/playlist?list=#{plid}" end get "/add_playlist_items" 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 "/" end user = user.as(User) sid = sid.as(String) plid = env.params.query["list"]? if !plid || !plid.starts_with?("IV") next env.redirect referer end page = env.params.query["page"]?.try &.to_i? page ||= 1 begin playlist = PG_DB.query_one("SELECT * FROM playlists WHERE id = $1", plid, as: InvidiousPlaylist) if !playlist || playlist.author != user.email next env.redirect referer end rescue ex next env.redirect referer end query = env.params.query["q"]? if query begin search_query, count, items = process_search_query(query, page, user, region: nil) videos = items.select { |item| item.is_a? SearchVideo }.map { |item| item.as(SearchVideo) } rescue ex videos = [] of SearchVideo count = 0 end else videos = [] of SearchVideo count = 0 end env.set "add_playlist_items", plid templated "add_playlist_items" end post "/playlist_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 error_message = {"error" => "No such user"}.to_json env.response.status_code = 403 next error_message 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 error_message = ex.message env.response.status_code = 400 next templated "error" else error_message = {"error" => ex.message}.to_json env.response.status_code = 400 next error_message end end if env.params.query["action_create_playlist"]? action = "action_create_playlist" elsif env.params.query["action_delete_playlist"]? action = "action_delete_playlist" elsif env.params.query["action_edit_playlist"]? action = "action_edit_playlist" elsif env.params.query["action_add_video"]? action = "action_add_video" video_id = env.params.query["video_id"] elsif env.params.query["action_remove_video"]? action = "action_remove_video" elsif env.params.query["action_move_video_before"]? action = "action_move_video_before" else next env.redirect referer end begin playlist_id = env.params.query["playlist_id"] playlist = get_playlist(PG_DB, playlist_id, locale).as(InvidiousPlaylist) raise "Invalid user" if playlist.author != user.email rescue ex if redirect error_message = ex.message env.response.status_code = 400 next templated "error" else error_message = {"error" => ex.message}.to_json env.response.status_code = 400 next error_message end end if !user.password # TODO: Playlist stub, sync with YouTube for Google accounts # playlist_ajax(playlist_id, action, env.request.headers) end email = user.email case action when "action_edit_playlist" # TODO: Playlist stub when "action_add_video" if playlist.index.size >= 500 env.response.status_code = 400 if redirect error_message = "Playlist cannot have more than 500 videos" next templated "error" else error_message = {"error" => "Playlist cannot have more than 500 videos"}.to_json next error_message end end video_id = env.params.query["video_id"] begin video = get_video(video_id, PG_DB) rescue ex env.response.status_code = 500 if redirect error_message = ex.message next templated "error" else error_message = {"error" => ex.message}.to_json next error_message end 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 = video_count + 1, updated = $2 WHERE id = $3", playlist_video.index, Time.utc, playlist_id) when "action_remove_video" index = env.params.query["set_video_id"] PG_DB.exec("DELETE FROM playlist_videos * WHERE index = $1", index) PG_DB.exec("UPDATE playlists SET index = array_remove(index, $1), video_count = video_count - 1, updated = $2 WHERE id = $3", index, Time.utc, playlist_id) when "action_move_video_before" # TODO: Playlist stub end if redirect env.redirect referer else env.response.content_type = "application/json" "{}" end end get "/playlist" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get?("user").try &.as(User) plid = env.params.query["list"]? referer = get_referer(env) if !plid next env.redirect "/" end page = env.params.query["page"]?.try &.to_i? page ||= 1 if plid.starts_with? "RD" next env.redirect "/mix?list=#{plid}" end begin playlist = get_playlist(PG_DB, plid, locale) rescue ex error_message = ex.message env.response.status_code = 500 next templated "error" end if playlist.privacy == PlaylistPrivacy::Private && playlist.author != user.try &.email error_message = "This playlist is private." env.response.status_code = 403 next templated "error" end begin videos = get_playlist_videos(PG_DB, playlist, offset: (page - 1) * 100, locale: locale) rescue ex videos = [] of PlaylistVideo end if playlist.author == user.try &.email env.set "remove_playlist_items", plid end templated "playlist" end get "/mix" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? rdid = env.params.query["list"]? if !rdid next env.redirect "/" end continuation = env.params.query["continuation"]? continuation ||= rdid.lchop("RD") begin mix = fetch_mix(rdid, continuation, locale: locale) rescue ex error_message = ex.message env.response.status_code = 500 next templated "error" end templated "mix" end # Search get "/opensearch.xml" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? env.response.content_type = "application/opensearchdescription+xml" host = make_host_url(config, Kemal.config) XML.build(indent: " ", encoding: "UTF-8") do |xml| xml.element("OpenSearchDescription", xmlns: "http://a9.com/-/spec/opensearch/1.1/") do xml.element("ShortName") { xml.text "Invidious" } xml.element("LongName") { xml.text "Invidious Search" } xml.element("Description") { xml.text "Search for videos, channels, and playlists on Invidious" } xml.element("InputEncoding") { xml.text "UTF-8" } xml.element("Image", width: 48, height: 48, type: "image/x-icon") { xml.text "#{host}/favicon.ico" } xml.element("Url", type: "text/html", method: "get", template: "#{host}/search?q={searchTerms}") end end end get "/results" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? query = env.params.query["search_query"]? query ||= env.params.query["q"]? query ||= "" page = env.params.query["page"]?.try &.to_i? page ||= 1 if query env.redirect "/search?q=#{URI.encode_www_form(query)}&page=#{page}" else env.redirect "/" end end get "/search" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? region = env.params.query["region"]? query = env.params.query["search_query"]? query ||= env.params.query["q"]? query ||= "" if query.empty? next env.redirect "/" end page = env.params.query["page"]?.try &.to_i? page ||= 1 user = env.get? "user" begin search_query, count, videos = process_search_query(query, page, user, region: nil) rescue ex error_message = ex.message env.response.status_code = 500 next templated "error" end env.set "search", query templated "search" end # Users get "/login" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" if user next env.redirect "/feed/subscriptions" end if !config.login_enabled error_message = "Login has been disabled by administrator." env.response.status_code = 400 next templated "error" end referer = get_referer(env, "/feed/subscriptions") email = nil password = nil captcha = nil account_type = env.params.query["type"]? account_type ||= "invidious" captcha_type = env.params.query["captcha"]? captcha_type ||= "image" tfa = env.params.query["tfa"]? tfa ||= false prompt = "" templated "login" end post "/login" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? referer = get_referer(env, "/feed/subscriptions") if !config.login_enabled error_message = "Login has been disabled by administrator." env.response.status_code = 403 next templated "error" end # https://stackoverflow.com/a/574698 email = env.params.body["email"]?.try &.downcase.byte_slice(0, 254) password = env.params.body["password"]? account_type = env.params.query["type"]? account_type ||= "invidious" case account_type when "google" tfa_code = env.params.body["tfa"]?.try &.lchop("G-") traceback = IO::Memory.new # See https://github.com/ytdl-org/youtube-dl/blob/2019.04.07/youtube_dl/extractor/youtube.py#L82 begin client = make_client(LOGIN_URL) headers = HTTP::Headers.new login_page = client.get("/ServiceLogin") headers = login_page.cookies.add_request_headers(headers) lookup_req = { email, nil, [] of String, nil, "US", nil, nil, 2, false, true, {nil, nil, {2, 1, nil, 1, "https://accounts.google.com/ServiceLogin?passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26action_handle_signin%3Dtrue%26hl%3Den%26app%3Ddesktop%26feature%3Dsign_in_button&hl=en&service=youtube&uilel=3&requestPath=%2FServiceLogin&Page=PasswordSeparationSignIn", nil, [] of String, 4}, 1, {nil, nil, [] of String}, nil, nil, nil, true, }, email, }.to_json traceback << "Getting lookup..." headers["Content-Type"] = "application/x-www-form-urlencoded;charset=utf-8" headers["Google-Accounts-XSRF"] = "1" headers["User-Agent"] = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.75 Safari/537.36" response = client.post("/_/signin/sl/lookup", headers, login_req(lookup_req)) lookup_results = JSON.parse(response.body[5..-1]) traceback << "done, returned #{response.status_code}.
" user_hash = lookup_results[0][2] challenge_req = { user_hash, nil, 1, nil, {1, nil, nil, nil, {password, nil, true}, }, {nil, nil, {2, 1, nil, 1, "https://accounts.google.com/ServiceLogin?passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26action_handle_signin%3Dtrue%26hl%3Den%26app%3Ddesktop%26feature%3Dsign_in_button&hl=en&service=youtube&uilel=3&requestPath=%2FServiceLogin&Page=PasswordSeparationSignIn", nil, [] of String, 4}, 1, {nil, nil, [] of String}, nil, nil, nil, true, }, }.to_json traceback << "Getting challenge..." response = client.post("/_/signin/sl/challenge", headers, login_req(challenge_req)) headers = response.cookies.add_request_headers(headers) challenge_results = JSON.parse(response.body[5..-1]) traceback << "done, returned #{response.status_code}.
" headers["Cookie"] = URI.decode_www_form(headers["Cookie"]) if challenge_results[0][3]?.try &.== 7 error_message = translate(locale, "Account has temporarily been disabled") env.response.status_code = 423 next templated "error" end # TODO: Handle Google's CAPTCHA if captcha = challenge_results[0][-1]?.try &.[-1]?.try &.as_h?.try &.["5001"]?.try &.[-1].as_a? error_message = "Unhandled CAPTCHA. Please try again later." env.response.status_code = 401 next templated "error" end if challenge_results[0][-1]?.try &.[5] == "INCORRECT_ANSWER_ENTERED" error_message = translate(locale, "Incorrect password") env.response.status_code = 401 next templated "error" end prompt_type = challenge_results[0][-1]?.try &.[0].as_a?.try &.[0][2]? if {"TWO_STEP_VERIFICATION", "LOGIN_CHALLENGE"}.includes? prompt_type traceback << "Handling prompt #{prompt_type}.
" case prompt_type when "TWO_STEP_VERIFICATION" prompt_type = 2 when "LOGIN_CHALLENGE" prompt_type = 4 end # Prefer Authenticator app and SMS over unsupported protocols if !{6, 9, 12, 15}.includes?(challenge_results[0][-1][0][0][8].as_i) && prompt_type == 2 tfa = challenge_results[0][-1][0].as_a.select { |auth_type| {6, 9, 12, 15}.includes? auth_type[8] }[0] traceback << "Selecting challenge #{tfa[8]}..." select_challenge = {prompt_type, nil, nil, nil, {tfa[8]}}.to_json tl = challenge_results[1][2] tfa = client.post("/_/signin/selectchallenge?TL=#{tl}", headers, login_req(select_challenge)).body tfa = tfa[5..-1] tfa = JSON.parse(tfa)[0][-1] traceback << "done.
" else traceback << "Using challenge #{challenge_results[0][-1][0][0][8]}.
" tfa = challenge_results[0][-1][0][0] end if tfa[5] == "QUOTA_EXCEEDED" error_message = translate(locale, "Quota exceeded, try again in a few hours") env.response.status_code = 423 next templated "error" end if !tfa_code account_type = "google" captcha_type = "image" case tfa[8] when 6, 9 prompt = "Google verification code" when 12 prompt = "Login verification, recovery email: #{tfa[-1][tfa[-1].as_h.keys[0]][0]}" when 15 prompt = "Login verification, security question: #{tfa[-1][tfa[-1].as_h.keys[0]][0]}" else prompt = "Google verification code" end tfa = true captcha = nil next templated "login" end tl = challenge_results[1][2] request_type = tfa[8] case request_type when 6 # Authenticator app tfa_req = { user_hash, nil, 2, nil, {6, nil, nil, nil, nil, {tfa_code, false}, }, }.to_json when 9 # Voice or text message tfa_req = { user_hash, nil, 2, nil, {9, nil, nil, nil, nil, nil, nil, nil, {nil, tfa_code, false, 2}, }, }.to_json when 12 # Recovery email tfa_req = { user_hash, nil, 4, nil, {12, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, {tfa_code}, }, }.to_json when 15 # Security question tfa_req = { user_hash, nil, 5, nil, {15, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, {tfa_code}, }, }.to_json else error_message = translate(locale, "Unable to log in, make sure two-factor authentication (Authenticator or SMS) is turned on.") env.response.status_code = 500 next templated "error" end traceback << "Submitting challenge..." response = client.post("/_/signin/challenge?hl=en&TL=#{tl}", headers, login_req(tfa_req)) headers = response.cookies.add_request_headers(headers) challenge_results = JSON.parse(response.body[5..-1]) if (challenge_results[0][-1]?.try &.[5] == "INCORRECT_ANSWER_ENTERED") || (challenge_results[0][-1]?.try &.[5] == "INVALID_INPUT") error_message = translate(locale, "Invalid TFA code") env.response.status_code = 401 next templated "error" end traceback << "done.
" end traceback << "Logging in..." location = challenge_results[0][-1][2].to_s cookies = HTTP::Cookies.from_headers(headers) loop do if !location || location.includes? "/ManageAccount" break end # Occasionally there will be a second page after login confirming # the user's phone number ("/b/0/SmsAuthInterstitial"), which we currently don't handle. if location.includes? "/b/0/SmsAuthInterstitial" traceback << "Unhandled dialog /b/0/SmsAuthInterstitial." end login = client.get(location, headers) headers = login.cookies.add_request_headers(headers) cookies = HTTP::Cookies.from_headers(headers) location = login.headers["Location"]? end sid = cookies["SID"]?.try &.value if !sid raise "Couldn't get SID." end user, sid = get_user(sid, headers, PG_DB) # We are now logged in traceback << "done.
" host = URI.parse(env.request.headers["Host"]).host if Kemal.config.ssl || config.https_only secure = true else secure = false end cookies.each do |cookie| if Kemal.config.ssl || config.https_only cookie.secure = secure else cookie.secure = secure end if cookie.extension cookie.extension = cookie.extension.not_nil!.gsub(".youtube.com", host) cookie.extension = cookie.extension.not_nil!.gsub("Secure; ", "") end env.response.cookies << cookie end if env.request.cookies["PREFS"]? preferences = env.get("preferences").as(Preferences) PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", preferences.to_json, user.email) cookie = env.request.cookies["PREFS"] cookie.expires = Time.utc(1990, 1, 1) env.response.cookies << cookie end env.redirect referer rescue ex traceback.rewind # error_message = translate(locale, "Login failed. This may be because two-factor authentication is not turned on for your account.") error_message = %(#{ex.message}
Traceback:
#{traceback.gets_to_end}
) env.response.status_code = 500 next templated "error" end when "invidious" if !email error_message = translate(locale, "User ID is a required field") env.response.status_code = 401 next templated "error" end if !password error_message = translate(locale, "Password is a required field") env.response.status_code = 401 next templated "error" end user = PG_DB.query_one?("SELECT * FROM users WHERE email = $1", email, as: User) if user if !user.password error_message = translate(locale, "Please sign in using 'Log in with Google'") env.response.status_code = 400 next templated "error" end if Crypto::Bcrypt::Password.new(user.password.not_nil!).verify(password.byte_slice(0, 55)) sid = Base64.urlsafe_encode(Random::Secure.random_bytes(32)) PG_DB.exec("INSERT INTO session_ids VALUES ($1, $2, $3)", sid, email, Time.utc) if Kemal.config.ssl || config.https_only secure = true else secure = false end if config.domain env.response.cookies["SID"] = HTTP::Cookie.new(name: "SID", domain: "#{config.domain}", value: sid, expires: Time.utc + 2.years, secure: secure, http_only: true) else env.response.cookies["SID"] = HTTP::Cookie.new(name: "SID", value: sid, expires: Time.utc + 2.years, secure: secure, http_only: true) end else error_message = translate(locale, "Wrong username or password") env.response.status_code = 401 next templated "error" end # Since this user has already registered, we don't want to overwrite their preferences if env.request.cookies["PREFS"]? cookie = env.request.cookies["PREFS"] cookie.expires = Time.utc(1990, 1, 1) env.response.cookies << cookie end else if !config.registration_enabled error_message = "Registration has been disabled by administrator." env.response.status_code = 400 next templated "error" end if password.empty? error_message = translate(locale, "Password cannot be empty") env.response.status_code = 401 next templated "error" end # See https://security.stackexchange.com/a/39851 if password.bytesize > 55 error_message = translate(locale, "Password should not be longer than 55 characters") env.response.status_code = 400 next templated "error" end password = password.byte_slice(0, 55) if config.captcha_enabled captcha_type = env.params.body["captcha_type"]? answer = env.params.body["answer"]? change_type = env.params.body["change_type"]? if !captcha_type || change_type if change_type captcha_type = change_type end captcha_type ||= "image" account_type = "invidious" tfa = false prompt = "" if captcha_type == "image" captcha = generate_captcha(HMAC_KEY, PG_DB) else captcha = generate_text_captcha(HMAC_KEY, PG_DB) end next templated "login" end tokens = env.params.body.select { |k, v| k.match(/^token\[\d+\]$/) }.map { |k, v| v } answer ||= "" captcha_type ||= "image" case captcha_type when "image" answer = answer.lstrip('0') answer = OpenSSL::HMAC.hexdigest(:sha256, HMAC_KEY, answer) begin validate_request(tokens[0], answer, env.request, HMAC_KEY, PG_DB, locale) rescue ex error_message = ex.message env.response.status_code = 400 next templated "error" end when "text" answer = Digest::MD5.hexdigest(answer.downcase.strip) found_valid_captcha = false error_message = translate(locale, "Erroneous CAPTCHA") tokens.each_with_index do |token, i| begin validate_request(token, answer, env.request, HMAC_KEY, PG_DB, locale) found_valid_captcha = true rescue ex error_message = ex.message end end if !found_valid_captcha env.response.status_code = 500 next templated "error" end end end sid = Base64.urlsafe_encode(Random::Secure.random_bytes(32)) user, sid = create_user(sid, email, password) user_array = user.to_a user_array[4] = user_array[4].to_json args = arg_array(user_array) PG_DB.exec("INSERT INTO users VALUES (#{args})", args: user_array) PG_DB.exec("INSERT INTO session_ids VALUES ($1, $2, $3)", sid, email, Time.utc) view_name = "subscriptions_#{sha256(user.email)}" PG_DB.exec("CREATE MATERIALIZED VIEW #{view_name} AS #{MATERIALIZED_VIEW_SQL.call(user.email)}") if Kemal.config.ssl || config.https_only secure = true else secure = false end if config.domain env.response.cookies["SID"] = HTTP::Cookie.new(name: "SID", domain: "#{config.domain}", value: sid, expires: Time.utc + 2.years, secure: secure, http_only: true) else env.response.cookies["SID"] = HTTP::Cookie.new(name: "SID", value: sid, expires: Time.utc + 2.years, secure: secure, http_only: true) end if env.request.cookies["PREFS"]? preferences = env.get("preferences").as(Preferences) PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", preferences.to_json, user.email) cookie = env.request.cookies["PREFS"] cookie.expires = Time.utc(1990, 1, 1) env.response.cookies << cookie end end env.redirect referer else env.redirect referer end end post "/signout" 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 error_message = ex.message env.response.status_code = 400 next templated "error" end PG_DB.exec("DELETE FROM session_ids * WHERE id = $1", sid) env.request.cookies.each do |cookie| cookie.expires = Time.utc(1990, 1, 1) env.response.cookies << cookie end env.redirect referer end get "/preferences" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? referer = get_referer(env) preferences = env.get("preferences").as(Preferences) templated "preferences" end post "/preferences" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? referer = get_referer(env) video_loop = env.params.body["video_loop"]?.try &.as(String) video_loop ||= "off" video_loop = video_loop == "on" annotations = env.params.body["annotations"]?.try &.as(String) annotations ||= "off" annotations = annotations == "on" annotations_subscribed = env.params.body["annotations_subscribed"]?.try &.as(String) annotations_subscribed ||= "off" annotations_subscribed = annotations_subscribed == "on" autoplay = env.params.body["autoplay"]?.try &.as(String) autoplay ||= "off" autoplay = autoplay == "on" continue = env.params.body["continue"]?.try &.as(String) continue ||= "off" continue = continue == "on" continue_autoplay = env.params.body["continue_autoplay"]?.try &.as(String) continue_autoplay ||= "off" continue_autoplay = continue_autoplay == "on" listen = env.params.body["listen"]?.try &.as(String) listen ||= "off" listen = listen == "on" local = env.params.body["local"]?.try &.as(String) local ||= "off" local = local == "on" speed = env.params.body["speed"]?.try &.as(String).to_f32? speed ||= CONFIG.default_user_preferences.speed player_style = env.params.body["player_style"]?.try &.as(String) player_style ||= CONFIG.default_user_preferences.player_style quality = env.params.body["quality"]?.try &.as(String) quality ||= CONFIG.default_user_preferences.quality volume = env.params.body["volume"]?.try &.as(String).to_i? volume ||= CONFIG.default_user_preferences.volume comments = [] of String 2.times do |i| comments << (env.params.body["comments[#{i}]"]?.try &.as(String) || CONFIG.default_user_preferences.comments[i]) end captions = [] of String 3.times do |i| captions << (env.params.body["captions[#{i}]"]?.try &.as(String) || CONFIG.default_user_preferences.captions[i]) end related_videos = env.params.body["related_videos"]?.try &.as(String) related_videos ||= "off" related_videos = related_videos == "on" default_home = env.params.body["default_home"]?.try &.as(String) || CONFIG.default_user_preferences.default_home feed_menu = [] of String 5.times do |index| option = env.params.body["feed_menu[#{index}]"]?.try &.as(String) || "" if !option.empty? feed_menu << option end end locale = env.params.body["locale"]?.try &.as(String) locale ||= CONFIG.default_user_preferences.locale dark_mode = env.params.body["dark_mode"]?.try &.as(String) dark_mode ||= CONFIG.default_user_preferences.dark_mode thin_mode = env.params.body["thin_mode"]?.try &.as(String) thin_mode ||= "off" thin_mode = thin_mode == "on" max_results = env.params.body["max_results"]?.try &.as(String).to_i? max_results ||= CONFIG.default_user_preferences.max_results sort = env.params.body["sort"]?.try &.as(String) sort ||= CONFIG.default_user_preferences.sort latest_only = env.params.body["latest_only"]?.try &.as(String) latest_only ||= "off" latest_only = latest_only == "on" unseen_only = env.params.body["unseen_only"]?.try &.as(String) unseen_only ||= "off" unseen_only = unseen_only == "on" notifications_only = env.params.body["notifications_only"]?.try &.as(String) notifications_only ||= "off" notifications_only = notifications_only == "on" # Convert to JSON and back again to take advantage of converters used for compatability preferences = Preferences.from_json({ annotations: annotations, annotations_subscribed: annotations_subscribed, autoplay: autoplay, captions: captions, comments: comments, continue: continue, continue_autoplay: continue_autoplay, dark_mode: dark_mode, latest_only: latest_only, listen: listen, local: local, locale: locale, max_results: max_results, notifications_only: notifications_only, player_style: player_style, quality: quality, default_home: default_home, feed_menu: feed_menu, related_videos: related_videos, sort: sort, speed: speed, thin_mode: thin_mode, unseen_only: unseen_only, video_loop: video_loop, volume: volume, }.to_json).to_json if user = env.get? "user" user = user.as(User) PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", preferences, user.email) if config.admins.includes? user.email config.default_user_preferences.default_home = env.params.body["admin_default_home"]?.try &.as(String) || config.default_user_preferences.default_home admin_feed_menu = [] of String 5.times do |index| option = env.params.body["admin_feed_menu[#{index}]"]?.try &.as(String) || "" if !option.empty? admin_feed_menu << option end end config.default_user_preferences.feed_menu = admin_feed_menu top_enabled = env.params.body["top_enabled"]?.try &.as(String) top_enabled ||= "off" config.top_enabled = top_enabled == "on" captcha_enabled = env.params.body["captcha_enabled"]?.try &.as(String) captcha_enabled ||= "off" config.captcha_enabled = captcha_enabled == "on" login_enabled = env.params.body["login_enabled"]?.try &.as(String) login_enabled ||= "off" config.login_enabled = login_enabled == "on" registration_enabled = env.params.body["registration_enabled"]?.try &.as(String) registration_enabled ||= "off" config.registration_enabled = registration_enabled == "on" statistics_enabled = env.params.body["statistics_enabled"]?.try &.as(String) statistics_enabled ||= "off" config.statistics_enabled = statistics_enabled == "on" CONFIG.default_user_preferences = config.default_user_preferences File.write("config/config.yml", config.to_yaml) end else if Kemal.config.ssl || config.https_only secure = true else secure = false end if config.domain env.response.cookies["PREFS"] = HTTP::Cookie.new(name: "PREFS", domain: "#{config.domain}", value: preferences, expires: Time.utc + 2.years, secure: secure, http_only: true) else env.response.cookies["PREFS"] = HTTP::Cookie.new(name: "PREFS", value: preferences, expires: Time.utc + 2.years, secure: secure, http_only: true) end end env.redirect referer end get "/toggle_theme" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? referer = get_referer(env, unroll: false) redirect = env.params.query["redirect"]? redirect ||= "true" redirect = redirect == "true" if user = env.get? "user" user = user.as(User) preferences = user.preferences case preferences.dark_mode when "dark" preferences.dark_mode = "light" else preferences.dark_mode = "dark" end preferences = preferences.to_json PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", preferences, user.email) else preferences = env.get("preferences").as(Preferences) case preferences.dark_mode when "dark" preferences.dark_mode = "light" else preferences.dark_mode = "dark" end preferences = preferences.to_json if Kemal.config.ssl || config.https_only secure = true else secure = false end if config.domain env.response.cookies["PREFS"] = HTTP::Cookie.new(name: "PREFS", domain: "#{config.domain}", value: preferences, expires: Time.utc + 2.years, secure: secure, http_only: true) else env.response.cookies["PREFS"] = HTTP::Cookie.new(name: "PREFS", value: preferences, expires: Time.utc + 2.years, secure: secure, http_only: true) end end if redirect env.redirect referer else env.response.content_type = "application/json" "{}" end end 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 error_message = {"error" => "No such user"}.to_json env.response.status_code = 403 next error_message 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 env.response.status_code = 400 if redirect error_message = ex.message next templated "error" else error_message = {"error" => ex.message}.to_json next error_message 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 = 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) 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 error_message = {"error" => "No such user"}.to_json env.response.status_code = 403 next error_message 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"] client = make_client(YT_URL) html = client.get("/subscription_manager?disable_polymer=1", headers) cookies = HTTP::Cookies.from_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) match = html.body.match(/'XSRF_TOKEN': "(?[A-Za-z0-9\_\-\=]+)"/) if match 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 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 error_message = {"error" => "No such user"}.to_json env.response.status_code = 403 next error_message 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 error_message = ex.message env.response.status_code = 400 next templated "error" else error_message = {"error" => ex.message}.to_json env.response.status_code = 400 next error_message 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) 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 host_url = make_host_url(config, Kemal.config) if format == "json" env.response.content_type = "application/json" env.response.headers["content-disposition"] = "attachment" next { "subscriptions" => user.subscriptions, "watch_history" => user.watched, "preferences" => user.preferences, }.to_json 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) spawn do # Since import can take a while, if we're not done after 20 seconds # push out content to prevent timeout. # Interesting to note is that Chrome will try to render before the content has finished loading, # which is why we include a loading icon. Firefox and its derivatives will not see this page, # instead redirecting immediately once the connection has closed. # https://stackoverflow.com/q/2091239 is helpful but not directly applicable here. sleep 20.seconds env.response.puts %() env.response.puts %() env.response.puts %() if env.get("preferences").as(Preferences).dark_mode == "dark" env.response.puts %() else env.response.puts %() end env.response.puts %(

) env.response.flush loop do env.response.puts %() env.response.flush sleep (20 + rand(11)).seconds end end HTTP::FormData.parse(env.request) do |part| body = part.body.gets_to_end if body.empty? next end 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, user.preferences) PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", user.preferences.to_json, user.email) end when "import_youtube" subscriptions = XML.parse(body) user.subscriptions += subscriptions.xpath_nodes(%q(//outline[@type="rss"])).map do |channel| channel["xmlUrl"].match(/UC[a-zA-Z0-9_-]{22}/).not_nil![0] 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_freetube" user.subscriptions += body.scan(/"channelId":"(?[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\/(?.+)/) client = make_client(YT_URL) response = client.get("/user/#{match["user"]}?disable_polymer=1&hl=en&gl=US") document = XML.parse_html(response.body) canonical = document.xpath_node(%q(//link[@rel="canonical"])) if canonical ucid = canonical["href"].split("/")[-1] next ucid end 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" 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 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 error_message = "Cannot change password for Google accounts" env.response.status_code = 400 next templated "error" end begin validate_request(token, sid, env.request, HMAC_KEY, PG_DB, locale) rescue ex error_message = ex.message env.response.status_code = 400 next templated "error" end password = env.params.body["password"]? if !password error_message = translate(locale, "Password is a required field") env.response.status_code = 401 next templated "error" 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 error_message = translate(locale, "New passwords must match") env.response.status_code = 400 next templated "error" end new_password = new_passwords.uniq[0] if new_password.empty? error_message = translate(locale, "Password cannot be empty") env.response.status_code = 401 next templated "error" end if new_password.bytesize > 55 error_message = translate(locale, "Password should not be longer than 55 characters") env.response.status_code = 400 next templated "error" end if !Crypto::Bcrypt::Password.new(user.password.not_nil!).verify(password.byte_slice(0, 55)) error_message = translate(locale, "Incorrect password") env.response.status_code = 401 next templated "error" 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 error_message = ex.message env.response.status_code = 400 next templated "error" 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 error_message = ex.message env.response.status_code = 400 next templated "error" 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 error_message = ex.message env.response.status_code = 400 next templated "error" 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 error_message = {"error" => "No such user"}.to_json env.response.status_code = 403 next error_message 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 error_message = ex.message env.response.status_code = 400 next templated "error" else error_message = {"error" => ex.message}.to_json env.response.status_code = 400 next error_message 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) end if redirect env.redirect referer else env.response.content_type = "application/json" "{}" end end # Feeds get "/feed/top" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? if config.top_enabled templated "top" else env.redirect "/" end end get "/feed/popular" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? templated "popular" 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 error_message = "#{ex.message}" env.response.status_code = 500 next templated "error" 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 error_message = ex.message env.response.status_code = 500 next error_message end client = make_client(YT_URL) rss = client.get("/feeds/videos.xml?channel_id=#{channel.ucid}").body rss = XML.parse_html(rss) videos = [] of SearchVideo rss.xpath_nodes("//feed/entry").each 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 videos << 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 host_url = make_host_url(config, Kemal.config) 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("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(host_url, 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) host_url = make_host_url(config, Kemal.config) 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, host_url, 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"]? || "") host_url = make_host_url(config, Kemal.config) 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(host_url, false, xml) end end end else env.response.status_code = 404 next end end client = make_client(YT_URL) response = 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" full_path = URI.parse(node[attribute.name]).full_path query_string_opt = full_path.starts_with?("/watch?v=") ? "&#{params}" : "" node[attribute.name] = "#{host_url}#{full_path}#{query_string_opt}" 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"]).full_path}" 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.puts("#{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, ) emails = PG_DB.query_all("UPDATE users SET notifications = notifications || $1 \ WHERE updated < $2 AND $3 = ANY(subscriptions) AND $1 <> ALL(notifications) RETURNING email", video.id, video.published, video.ucid, as: String) video_array = video.to_a args = arg_array(video_array) PG_DB.exec("INSERT INTO channel_videos VALUES (#{args}) \ 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", args: video_array) # Update all users affected by insert if emails.empty? values = "'{}'" else values = "VALUES #{emails.map { |id| %(('#{id}')) }.join(",")}" end PG_DB.exec("UPDATE users SET feed_needs_update = true WHERE email = ANY(#{values})") 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]? client = make_client(YT_URL) # 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 = 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]? client = make_client(YT_URL) user = env.params.url["user"] response = client.get("/c/#{user}") document = XML.parse_html(response.body) anchor = document.xpath_node(%q(//a[contains(@class,"branded-page-header-title-link")])) if !anchor next env.redirect "/" end env.redirect anchor["href"] 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).full_path else url = "/" end env.redirect url end # Page used by YouTube to provide captioning widget, since we # don't support it we redirect to '/' get "/timedtext_video" do |env| env.redirect "/" 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 get "/channel/:ucid/about" do |env| ucid = env.params.url["ucid"] env.redirect "/channel/#{ucid}" end get "/channel/:ucid" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" if user user = user.as(User) subscriptions = user.subscriptions end subscriptions ||= [] of String ucid = env.params.url["ucid"] page = env.params.query["page"]?.try &.to_i? page ||= 1 continuation = env.params.query["continuation"]? sort_by = env.params.query["sort_by"]?.try &.downcase begin channel = get_about_info(ucid, locale) rescue ex : ChannelRedirect next env.redirect env.request.resource.gsub(ucid, ex.channel_id) rescue ex error_message = ex.message env.response.status_code = 500 next templated "error" end if channel.auto_generated sort_options = {"last", "oldest", "newest"} sort_by ||= "last" items, continuation = fetch_channel_playlists(channel.ucid, channel.author, channel.auto_generated, continuation, sort_by) items.uniq! do |item| if item.responds_to?(:title) item.title elsif item.responds_to?(:author) item.author end end items = items.select { |item| item.is_a?(SearchPlaylist) }.map { |item| item.as(SearchPlaylist) } items.each { |item| item.author = "" } else sort_options = {"newest", "oldest", "popular"} sort_by ||= "newest" items, count = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by) items.select! { |item| !item.paid } env.set "search", "channel:#{channel.ucid} " end templated "channel" end get "/channel/:ucid/videos" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? ucid = env.params.url["ucid"] params = env.request.query if !params || params.empty? params = "" else params = "?#{params}" end env.redirect "/channel/#{ucid}#{params}" end get "/channel/:ucid/playlists" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" if user user = user.as(User) subscriptions = user.subscriptions end subscriptions ||= [] of String ucid = env.params.url["ucid"] continuation = env.params.query["continuation"]? sort_by = env.params.query["sort_by"]?.try &.downcase sort_by ||= "last" begin channel = get_about_info(ucid, locale) rescue ex : ChannelRedirect next env.redirect env.request.resource.gsub(ucid, ex.channel_id) rescue ex error_message = ex.message env.response.status_code = 500 next templated "error" end if channel.auto_generated next env.redirect "/channel/#{channel.ucid}" end items, continuation = fetch_channel_playlists(channel.ucid, channel.author, channel.auto_generated, continuation, sort_by) items = items.select { |item| item.is_a?(SearchPlaylist) }.map { |item| item.as(SearchPlaylist) } items.each { |item| item.author = "" } env.set "search", "channel:#{channel.ucid} " templated "playlists" end get "/channel/:ucid/community" do |env| locale = LOCALES[env.get("preferences").as(Preferences).locale]? user = env.get? "user" if user user = user.as(User) subscriptions = user.subscriptions end subscriptions ||= [] of String ucid = env.params.url["ucid"] thin_mode = env.params.query["thin_mode"]? || env.get("preferences").as(Preferences).thin_mode thin_mode = thin_mode == "true" continuation = env.params.query["continuation"]? # sort_by = env.params.query["sort_by"]?.try &.downcase begin channel = get_about_info(ucid, locale) rescue ex : ChannelRedirect next env.redirect env.request.resource.gsub(ucid, ex.channel_id) rescue ex error_message = ex.message env.response.status_code = 500 next templated "error" end if !channel.tabs.includes? "community" next env.redirect "/channel/#{channel.ucid}" end begin items = JSON.parse(fetch_channel_community(ucid, continuation, locale, config, Kemal.config, "json", thin_mode)) rescue ex env.response.status_code = 500 error_message = ex.message end env.set "search", "channel:#{channel.ucid} " templated "community" end # API Endpoints get "/api/v1/stats" do |env| env.response.content_type = "application/json" if !config.statistics_enabled error_message = {"error" => "Statistics are not enabled."}.to_json env.response.status_code = 400 next error_message end if statistics["error"]? env.response.status_code = 500 next statistics.to_json end 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"]? client = make_client(YT_URL) begin video = get_video(id, PG_DB, region: region) rescue ex : VideoRedirect error_message = {"error" => "Video is unavailable", "videoId" => ex.video_id}.to_json env.response.status_code = 302 env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id) next error_message 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, config, Kemal.config) 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| host_url = make_host_url(config, Kemal.config) url = storyboard[:url].gsub("$M", i).gsub("https://i9.ytimg.com", host_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]},#{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. client = make_client(YT_URL) begin video = get_video(id, PG_DB, region: region) rescue ex : VideoRedirect error_message = {"error" => "Video is unavailable", "videoId" => ex.video_id}.to_json env.response.status_code = 302 env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id) next error_message 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" caption = captions.select { |caption| caption.name.simpleText == label } if lang caption = captions.select { |caption| caption.languageCode == lang } end if caption.empty? env.response.status_code = 404 next else caption = caption[0] end url = "#{caption.baseUrl}&tlang=#{tlang}" # 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 = 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 = 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" 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) rescue ex error_message = {"error" => ex.message}.to_json env.response.status_code = 500 next error_message 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]? id = env.params.url["id"] env.response.content_type = "application/json" error_message = {"error" => "YouTube has removed publicly available analytics."}.to_json env.response.status_code = 410 error_message 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") client = make_client(ARCHIVE_URL) location = client.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 when "youtube" client = make_client(YT_URL) response = 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 annotations 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 error_message = {"error" => "Video is unavailable", "videoId" => ex.video_id}.to_json env.response.status_code = 302 env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id) next error_message rescue ex error_message = {"error" => ex.message}.to_json env.response.status_code = 500 next error_message end video.to_json(locale, config, Kemal.config, decrypt_function) 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 error_message = {"error" => ex.message}.to_json env.response.status_code = 500 next error_message end videos = JSON.build do |json| json.array do trending.each do |video| video.to_json(locale, config, Kemal.config, 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" JSON.build do |json| json.array do popular_videos.each do |video| video.to_json(locale, config, Kemal.config, 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" if !config.top_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 top_videos.each do |video| # Top videos have much more information than provided below (adaptiveFormats, etc) # but can be very out of date, so we only provide a subset here json.object do json.field "title", video.title json.field "videoId", video.id json.field "videoThumbnails" do generate_thumbnails(json, video.id, config, Kemal.config) end json.field "lengthSeconds", video.length_seconds json.field "viewCount", video.views json.field "author", video.author json.field "authorId", video.ucid json.field "authorUrl", "/channel/#{video.ucid}" json.field "published", video.published.to_unix json.field "publishedText", translate(locale, "`x` ago", recode_date(video.published, locale)) json.field "description", html_to_content(video.description_html) json.field "descriptionHtml", video.description_html end end end end 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 error_message = {"error" => "Channel is unavailable", "authorId" => ex.channel_id}.to_json env.response.status_code = 302 env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id) next error_message rescue ex error_message = {"error" => ex.message}.to_json env.response.status_code = 500 next error_message end page = 1 if channel.auto_generated videos = [] of SearchVideo count = 0 else begin videos, count = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by) rescue ex error_message = {"error" => ex.message}.to_json env.response.status_code = 500 next error_message 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(/=\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 "latestVideos" do json.array do videos.each do |video| video.to_json(locale, config, Kemal.config, 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 error_message = {"error" => "Channel is unavailable", "authorId" => ex.channel_id}.to_json env.response.status_code = 302 env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id) next error_message rescue ex error_message = {"error" => ex.message}.to_json env.response.status_code = 500 next error_message end begin videos, count = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by) rescue ex error_message = {"error" => ex.message}.to_json env.response.status_code = 500 next error_message end JSON.build do |json| json.array do videos.each do |video| video.to_json(locale, config, Kemal.config, 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 error_message = {"error" => ex.message}.to_json env.response.status_code = 500 next error_message end JSON.build do |json| json.array do videos.each do |video| video.to_json(locale, config, Kemal.config, 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 sort_by ||= env.params.query["sort_by"]?.try &.downcase sort_by ||= "last" begin channel = get_about_info(ucid, locale) rescue ex : ChannelRedirect error_message = {"error" => "Channel is unavailable", "authorId" => ex.channel_id}.to_json env.response.status_code = 302 env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id) next error_message rescue ex error_message = {"error" => ex.message}.to_json env.response.status_code = 500 next error_message end items, continuation = fetch_channel_playlists(channel.ucid, channel.author, channel.auto_generated, continuation, sort_by) JSON.build do |json| json.object do json.field "playlists" do json.array do items.each do |item| if item.is_a?(SearchPlaylist) item.to_json(locale, config, Kemal.config, json) end 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, config, Kemal.config, format, thin_mode) rescue ex env.response.status_code = 400 error_message = {"error" => ex.message}.to_json next error_message 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, config, Kemal.config, 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(sort_by, date, content_type, duration, features) rescue ex env.response.status_code = 400 error_message = {"error" => ex.message}.to_json next error_message end count, search_results = search(query, page, search_params, region).as(Tuple) JSON.build do |json| json.array do search_results.each do |item| item.to_json(locale, config, Kemal.config, 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 client = make_client(URI.parse("https://suggestqueries.google.com")) response = client.get("/complete/search?hl=en&gl=#{region}&client=youtube&ds=yt&q=#{URI.encode_www_form(query)}&callback=suggestCallback").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 env.response.status_code = 500 error_message = {"error" => ex.message}.to_json next error_message 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 env.response.status_code = 404 error_message = {"error" => "Playlist does not exist."}.to_json next error_message end user = env.get?("user").try &.as(User) if !playlist || playlist.privacy.private? && playlist.author != user.try &.email env.response.status_code = 404 error_message = {"error" => "Playlist does not exist."}.to_json next error_message end response = playlist.to_json(offset, locale, config, Kemal.config, 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 error_message = {"error" => ex.message}.to_json env.response.status_code = 500 next error_message 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, config, Kemal.config) 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, config, Kemal.config, decrypt_function, 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, config, Kemal.config, decrypt_function, 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 || "{}", user.preferences) 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, config, Kemal.config, json) end end end json.field "videos" do json.array do videos.each do |video| video.to_json(locale, config, Kemal.config, 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, config, Kemal.config, 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 error_message = {"error" => "Invalid title."}.to_json env.response.status_code = 400 next error_message end privacy = env.params.json["privacy"]?.try { |privacy| PlaylistPrivacy.parse(privacy.as(String).downcase) } if !privacy error_message = {"error" => "Invalid privacy setting."}.to_json env.response.status_code = 400 next error_message end if PG_DB.query_one("SELECT count(*) FROM playlists WHERE author = $1", user.email, as: Int64) >= 100 error_message = {"error" => "User cannot have more than 100 playlists."}.to_json env.response.status_code = 400 next error_message end host_url = make_host_url(config, Kemal.config) 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? env.response.status_code = 404 error_message = {"error" => "Playlist does not exist."}.to_json next error_message end if playlist.author != user.email env.response.status_code = 403 error_message = {"error" => "Invalid user"}.to_json next error_message 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| 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? env.response.status_code = 404 error_message = {"error" => "Playlist does not exist."}.to_json next error_message end if playlist.author != user.email env.response.status_code = 403 error_message = {"error" => "Invalid user"}.to_json next error_message 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? env.response.status_code = 404 error_message = {"error" => "Playlist does not exist."}.to_json next error_message end if playlist.author != user.email env.response.status_code = 403 error_message = {"error" => "Invalid user"}.to_json next error_message end if playlist.index.size >= 500 env.response.status_code = 400 error_message = {"error" => "Playlist cannot have more than 500 videos"}.to_json next error_message end video_id = env.params.json["videoId"].try &.as(String) if !video_id env.response.status_code = 403 error_message = {"error" => "Invalid videoId"}.to_json next error_message end begin video = get_video(video_id, PG_DB) rescue ex error_message = {"error" => ex.message}.to_json env.response.status_code = 500 next error_message 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 = video_count + 1, updated = $2 WHERE id = $3", playlist_video.index, Time.utc, plid) host_url = make_host_url(config, Kemal.config) 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, config, Kemal.config, index: playlist.index.size) end delete "/api/v1/auth/playlists/:plid/videos/:index" do |env| 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? env.response.status_code = 404 error_message = {"error" => "Playlist does not exist."}.to_json next error_message end if playlist.author != user.email env.response.status_code = 403 error_message = {"error" => "Invalid user"}.to_json next error_message end if !playlist.index.includes? index env.response.status_code = 404 error_message = {"error" => "Playlist does not contain index"}.to_json next error_message 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 = video_count - 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 error_message = {"error" => "Invalid or missing header 'Content-Type'"}.to_json env.response.status_code = 400 next error_message 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| 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 error_message = {"error" => "Cannot revoke session #{session}"}.to_json env.response.status_code = 400 next error_message 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"]? && (env.params.query["unique_res"] == "true" || env.params.query["unique_res"] == "1") client = make_client(YT_URL) 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.player_response["streamingData"]?.try &.["dashManifestUrl"]?.try &.as_s manifest = client.get(dashmpd).body manifest = manifest.gsub(/[^<]+<\/BaseURL>/) do |baseurl| url = baseurl.lchop("") url = url.rchop("") if local url = URI.parse(url).full_path end "#{url}" end next manifest end adaptive_fmts = video.adaptive_fmts(decrypt_function) if local adaptive_fmts.each do |fmt| fmt["url"] = URI.parse(fmt["url"]).full_path end end audio_streams = video.audio_streams(adaptive_fmts) video_streams = video.video_streams(adaptive_fmts).sort_by { |stream| stream["fps"].to_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["type"].starts_with? mime_type } if mime_streams.empty? next end xml.element("AdaptationSet", id: i, mimeType: mime_type, startWithSAP: 1, subsegmentAlignment: true) do mime_streams.each do |fmt| codecs = fmt["type"].split("codecs=")[1].strip('"') bandwidth = fmt["bitrate"].to_i * 1000 itag = fmt["itag"] url = fmt["url"] 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["index"]) do xml.element("Initialization", range: fmt["init"]) end end end end i += 1 end {"video/mp4", "video/webm"}.each do |mime_type| mime_streams = video_streams.select { |stream| stream["type"].starts_with? mime_type } if mime_streams.empty? next end 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["type"].split("codecs=")[1].strip('"') bandwidth = fmt["bitrate"] itag = fmt["itag"] url = fmt["url"] width, height = fmt["size"].split("x").map { |i| i.to_i } # Resolutions reported by YouTube player (may not accurately reflect source) height = [4320, 2160, 1440, 1080, 720, 480, 360, 240, 144].sort_by { |i| (height - i).abs }[0] 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["index"]) do xml.element("Initialization", range: fmt["init"]) end end end end i += 1 end end end end end get "/api/manifest/hls_variant/*" do |env| client = make_client(YT_URL) manifest = client.get(env.request.path) if manifest.status_code != 200 env.response.status_code = manifest.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", "*") host_url = make_host_url(config, Kemal.config) manifest = manifest.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| client = make_client(YT_URL) manifest = client.get(env.request.path) if manifest.status_code != 200 env.response.status_code = manifest.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", "*") host_url = make_host_url(config, Kemal.config) manifest = manifest.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 local = "true" end end id ||= env.params.query["id"]? itag ||= env.params.query["itag"]? 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_stream = video.fmt_stream(decrypt_function) adaptive_fmts = video.adaptive_fmts(decrypt_function) urls = (fmt_stream + adaptive_fmts).select { |fmt| fmt["itag"] == itag } if urls.empty? env.response.status_code = 404 next elsif urls.size > 1 env.response.status_code = 409 next end url = urls[0]["url"] if local url = URI.parse(url).full_path.not_nil! end if title url += "&title=#{title}" end 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| 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(403) 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"] = "*" host = "#{location.scheme}://#{location.host}" client = make_client(URI.parse(host), region) url = "#{location.full_path}&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 end end if response.status_code >= 400 env.response.status_code = response.status_code next end if url.includes? "&file=seg.ts" if CONFIG.disabled?("livestreams") env.response.status_code = 403 error_message = "Administrator has disabled this endpoint." next templated "error" end begin client = make_client(URI.parse(host), region) client.get(url, headers) do |response| response.headers.each do |key, value| if !RESPONSE_HEADERS_BLACKLIST.includes?(key) 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.full_path}&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") env.response.status_code = 403 error_message = "Administrator has disabled this endpoint." next templated "error" 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 client = make_client(URI.parse(host), region) # 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) && key != "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.full_path}&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 = make_client(URI.parse(host), region) end end chunk_start = chunk_end + 1 chunk_end += HTTP_CHUNK_SIZE first_chunk = false end end end # We need this so the below route works as expected get "/ggpht*" do |env| end get "/ggpht/*" do |env| host = "https://yt3.ggpht.com" client = make_client(URI.parse(host)) url = env.request.path.lchop("/ggpht") headers = HTTP::Headers.new REQUEST_HEADERS_WHITELIST.each do |header| if env.request.headers[header]? headers[header] = env.request.headers[header] end end begin 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 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/:id/:storyboard/:index" 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 "/sb/:id/:storyboard/:index" do |env| id = env.params.url["id"] storyboard = env.params.url["storyboard"] index = env.params.url["index"] if storyboard.starts_with? "storyboard_live" host = "https://i.ytimg.com" else host = "https://i9.ytimg.com" end client = make_client(URI.parse(host)) url = "/sb/#{id}/#{storyboard}/#{index}?#{env.params.query}" headers = HTTP::Headers.new REQUEST_HEADERS_WHITELIST.each do |header| if env.request.headers[header]? headers[header] = env.request.headers[header] end end begin 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 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 get "/s_p/:id/:name" do |env| id = env.params.url["id"] name = env.params.url["name"] host = "https://i9.ytimg.com" client = make_client(URI.parse(host)) url = env.request.resource headers = HTTP::Headers.new REQUEST_HEADERS_WHITELIST.each do |header| if env.request.headers[header]? headers[header] = env.request.headers[header] end end begin 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 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"] host = "https://i.ytimg.com" client = make_client(URI.parse(host)) if name == "maxres.jpg" build_thumbnails(id, config, Kemal.config).each do |thumb| if client.head("/vi/#{id}/#{thumb[:url]}.jpg").status_code == 200 name = thumb[:url] + ".jpg" break end end end url = "/vi/#{id}/#{name}" headers = HTTP::Headers.new REQUEST_HEADERS_WHITELIST.each do |header| if env.request.headers[header]? headers[header] = env.request.headers[header] end end begin 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 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 # Undocumented, creates anonymous playlist with specified 'video_ids', max 50 videos get "/watch_videos" do |env| client = make_client(YT_URL) response = client.get("#{env.request.path}?#{env.request.query}") if url = response.headers["Location"]? url = URI.parse(url).full_path 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 client = make_client(YT_URL) response = client.get("/#{item}") if response.status_code == 301 response = client.get(response.headers["Location"]) 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(//meta[@itemprop="channelId"])) if ucid env.response.headers["Location"] = "/channel/#{ucid["content"]}" 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 client = make_client(YT_URL) if item.match(/^[a-zA-Z0-9_-]{11}$/) && 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| error_message = <<-END_HTML Looks like you've found a bug in Invidious. Feel free to open a new issue here or send an email to omarroth@protonmail.com. END_HTML templated "error" 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