# "Invidious" (which is what YouTube should be) # Copyright (C) 2018 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 "detect_language" require "kemal" require "option_parser" require "pg" require "xml" require "yaml" require "./invidious/*" CONFIG = Config.from_yaml(File.read("config/config.yml")) crawl_threads = CONFIG.crawl_threads channel_threads = CONFIG.channel_threads video_threads = CONFIG.video_threads Kemal.config.extra_options do |parser| parser.banner = "Usage: invidious [arguments]" parser.on("-t THREADS", "--crawl-threads=THREADS", "Number of threads for crawling (default: #{crawl_threads})") do |number| begin crawl_threads = number.to_i rescue ex puts "THREADS must be integer" exit end end parser.on("-c THREADS", "--channel-threads=THREADS", "Number of threads for refreshing channels (default: #{channel_threads})") do |number| begin channel_threads = number.to_i rescue ex puts "THREADS must be integer" exit end end parser.on("-v THREADS", "--video-threads=THREADS", "Number of threads for refreshing videos (default: #{video_threads})") do |number| begin video_threads = number.to_i rescue ex puts "THREADS must be integer" exit end end end Kemal::CLI.new 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 YT_URL = URI.parse("https://www.youtube.com") REDDIT_URL = URI.parse("https://api.reddit.com") LOGIN_URL = URI.parse("https://accounts.google.com") crawl_threads.times do spawn do ids = Deque(String).new random = Random.new client = make_client(YT_URL) search(random.base64(3), client) do |id| ids << id end loop do if ids.empty? search(random.base64(3), client) do |id| ids << id end end begin id = ids[0] video = get_video(id, client, PG_DB) rescue ex STDOUT << id << " : " << ex.message << "\n" client = make_client(YT_URL) next ensure ids.delete(id) end rvs = [] of Hash(String, String) if video.info.has_key?("rvs") video.info["rvs"].split(",").each do |rv| rvs << HTTP::Params.parse(rv).to_h end end rvs.each do |rv| if rv.has_key?("id") && !PG_DB.query_one?("SELECT EXISTS (SELECT true FROM videos WHERE id = $1)", rv["id"], as: Bool) ids.delete(id) ids << rv["id"] if ids.size == 150 ids.shift end end end Fiber.yield end end end channel_threads.times do |i| spawn do loop do query = "SELECT id FROM channels ORDER BY updated \ LIMIT (SELECT count(*)/$2 FROM channels) \ OFFSET (SELECT count(*)*$1/$2 FROM channels)" PG_DB.query(query, i, channel_threads) do |rs| rs.each do client = make_client(YT_URL) begin id = rs.read(String) channel = get_channel(id, client, PG_DB) rescue ex STDOUT << id << " : " << ex.message << "\n" client = make_client(YT_URL) next end end end Fiber.yield end end end video_threads.times do |i| spawn do loop do query = "SELECT id FROM videos ORDER BY updated \ LIMIT (SELECT count(*)/$2 FROM videos) \ OFFSET (SELECT count(*)*$1/$2 FROM videos)" PG_DB.query(query, i, video_threads) do |rs| rs.each do client = make_client(YT_URL) begin id = rs.read(String) video = get_video(id, client, PG_DB) rescue ex STDOUT << id << " : " << ex.message << "\n" client = make_client(YT_URL) next end end end Fiber.yield end end end top_videos = [] of Video spawn do if CONFIG.dl_api_key DetectLanguage.configure do |config| config.api_key = CONFIG.dl_api_key.not_nil! end filter = true end filter ||= false loop do begin top = rank_videos(PG_DB, 40, filter, YT_URL) rescue ex next end if top.size > 0 args = arg_array(top) else next end videos = [] of Video top.each do |id| client = make_client(YT_URL) begin videos << get_video(id, client, PG_DB) rescue ex next end end top_videos = videos Fiber.yield end end before_all do |env| if env.request.cookies.has_key? "SID" headers = HTTP::Headers.new headers["Cookie"] = env.request.headers["Cookie"] sid = env.request.cookies["SID"].value begin client = make_client(YT_URL) user = get_user(sid, client, headers, PG_DB, false) env.set "user", user rescue ex end end end get "/" do |env| templated "index" end get "/watch" do |env| user = env.get? "user" if user user = user.as(User) preferences = user.preferences subscriptions = user.subscriptions.as(Array(String)) end subscriptions ||= [] of String if env.params.query["v"]? id = env.params.query["v"] else next env.redirect "/" end if env.params.query["start"]? video_start = decode_time(env.params.query["start"]) end if env.params.query["t"]? video_start = decode_time(env.params.query["t"]) end video_start ||= 0 if env.params.query["end"]? video_end = decode_time(env.params.query["end"]) end video_end ||= -1 if env.params.query["listen"]? && env.params.query["listen"] == "true" listen = true env.params.query.delete_all("listen") end listen ||= false client = make_client(YT_URL) begin video = get_video(id, client, PG_DB) rescue ex error_message = ex.message next templated "error" end fmt_stream = [] of HTTP::Params video.info["url_encoded_fmt_stream_map"].split(",") do |string| if !string.empty? fmt_stream << HTTP::Params.parse(string) end end fmt_stream.each { |s| s.add("label", "#{s["quality"]} - #{s["type"].split(";")[0].split("/")[1]}") } fmt_stream = fmt_stream.uniq { |s| s["label"] } adaptive_fmts = [] of HTTP::Params if video.info.has_key?("adaptive_fmts") video.info["adaptive_fmts"].split(",") do |string| adaptive_fmts << HTTP::Params.parse(string) end end if adaptive_fmts[0]? && adaptive_fmts[0]["s"]? adaptive_fmts.each do |fmt| fmt["url"] += "&signature=" + decrypt_signature(fmt["s"]) end fmt_stream.each do |fmt| fmt["url"] += "&signature=" + decrypt_signature(fmt["s"]) end end audio_streams = adaptive_fmts.compact_map { |s| s["type"].starts_with?("audio") ? s : nil } audio_streams.sort_by! { |s| s["bitrate"].to_i }.reverse! audio_streams.each do |stream| stream["bitrate"] = (stream["bitrate"].to_f64/1000).to_i.to_s end rvs = [] of Hash(String, String) if video.info.has_key?("rvs") video.info["rvs"].split(",").each do |rv| rvs << HTTP::Params.parse(rv).to_h end end rating = video.info["avg_rating"].to_f64 engagement = ((video.dislikes.to_f + video.likes.to_f)/video.views * 100) if video.likes > 0 || video.dislikes > 0 calculated_rating = (video.likes.to_f/(video.likes.to_f + video.dislikes.to_f) * 4 + 1) end calculated_rating ||= 0.0 if video.info["ad_slots"]? ad_slots = video.info["ad_slots"].split(",") ad_slots = ad_slots.join(", ") end if video.info["enabled_engage_types"]? engage_types = video.info["enabled_engage_types"].split(",") engage_types = engage_types.join(", ") end if video.info["ad_tag"]? ad_tag = URI.parse(video.info["ad_tag"]) ad_query = HTTP::Params.parse(ad_tag.query.not_nil!) ad_category = URI.unescape(ad_query["iu"]) ad_category = ad_category.lstrip("/4061/").split(".")[-1] ad_query = HTTP::Params.parse(ad_query["scp"]) k2 = URI.unescape(ad_query["k2"]).split(",") k2 = k2.join(", ") end reddit_client = make_client(REDDIT_URL) headers = HTTP::Headers{"User-Agent" => "web:invidio.us:v0.1.0 (by /u/omarroth)"} begin reddit_comments, reddit_thread = get_reddit_comments(id, reddit_client, headers) reddit_html = template_comments(reddit_comments) reddit_html = fill_links(reddit_html, "https", "www.reddit.com") reddit_html = add_alt_links(reddit_html) rescue ex reddit_thread = nil reddit_html = "" end video.description = fill_links(video.description, "https", "www.youtube.com") video.description = add_alt_links(video.description) thumbnail = "https://i.ytimg.com/vi/#{id}/mqdefault.jpg" templated "watch" end get "/embed/:id" do |env| if env.params.url["id"]? id = env.params.url["id"] else next env.redirect "/" end if env.params.query["start"]? video_start = decode_time(env.params.query["start"]) end if env.params.query["t"]? video_start = decode_time(env.params.query["t"]) end video_start ||= 0 if env.params.query["end"]? video_end = decode_time(env.params.query["end"]) end video_end ||= -1 if env.params.query["listen"]? && env.params.query["listen"] == "true" listen = true env.params.query.delete_all("listen") end listen ||= false autoplay = env.params.query["autoplay"]?.try &.to_i autoplay ||= 0 controls = env.params.query["controls"]?.try &.to_i controls ||= 1 video_loop = env.params.query["loop"]?.try &.to_i video_loop ||= 0 client = make_client(YT_URL) begin video = get_video(id, client, PG_DB) rescue ex error_message = ex.message next templated "error" end fmt_stream = [] of HTTP::Params video.info["url_encoded_fmt_stream_map"].split(",") do |string| if !string.empty? fmt_stream << HTTP::Params.parse(string) end end fmt_stream.each { |s| s.add("label", "#{s["quality"]} - #{s["type"].split(";")[0].split("/")[1]}") } fmt_stream = fmt_stream.uniq { |s| s["label"] } adaptive_fmts = [] of HTTP::Params if video.info.has_key?("adaptive_fmts") video.info["adaptive_fmts"].split(",") do |string| adaptive_fmts << HTTP::Params.parse(string) end end if adaptive_fmts[0]? && adaptive_fmts[0]["s"]? adaptive_fmts.each do |fmt| fmt["url"] += "&signature=" + decrypt_signature(fmt["s"]) end fmt_stream.each do |fmt| fmt["url"] += "&signature=" + decrypt_signature(fmt["s"]) end end audio_streams = adaptive_fmts.compact_map { |s| s["type"].starts_with?("audio") ? s : nil } audio_streams.sort_by! { |s| s["bitrate"].to_i }.reverse! audio_streams.each do |stream| stream["bitrate"] = (stream["bitrate"].to_f64/1000).to_i.to_s end thumbnail = "https://i.ytimg.com/vi/#{id}/mqdefault.jpg" rendered "embed" end get "/search" do |env| if env.params.query["q"]? query = env.params.query["q"] else next env.redirect "/" end page = env.params.query["page"]?.try &.to_i page ||= 1 client = make_client(YT_URL) html = client.get("/results?q=#{URI.escape(query)}&page=#{page}&sp=EgIQAVAU").body html = XML.parse_html(html) videos = [] of Video html.xpath_nodes(%q(//ol[@class="item-section"]/li)).each do |item| root = item.xpath_node(%q(div[contains(@class,"yt-lockup-video")]/div)) if root id = root.xpath_node(%q(div[contains(@class,"yt-lockup-thumbnail")]/a/@href)) if id id = id.content.lchop("/watch?v=") end id ||= "" title = root.xpath_node(%q(div[@class="yt-lockup-content"]/h3/a)) if title title = title.content end title ||= "" author = root.xpath_node(%q(div[@class="yt-lockup-content"]/div/a)) if author ucid = author["href"].rpartition("/")[-1] author = author.content end author ||= "" ucid ||= "" video = Video.new(id, HTTP::Params.parse(""), Time.now, title, 0_i64, 0, 0, 0.0, Time.now, "", nil, author, ucid) videos << video end end templated "search" end get "/login" do |env| referer = env.request.headers["referer"]? referer ||= "/feed/subscriptions" tfa = env.params.query["tfa"]? tfa ||= false if referer.ends_with? "/login" referer = "/feed/subscriptions" end if referer.size > 64 referer = "/feed/subscriptions" end templated "login" end # See https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/youtube.py#L79 post "/login" do |env| referer = env.params.query["referer"]? referer ||= "/feed/subscriptions" email = env.params.body["email"]? password = env.params.body["password"]? tfa_code = env.params.body["tfa"]?.try &.lchop("G-") begin client = make_client(LOGIN_URL) headers = HTTP::Headers.new headers["Content-Type"] = "application/x-www-form-urlencoded;charset=utf-8" headers["Google-Accounts-XSRF"] = "1" login_page = client.get("/ServiceLogin") headers = login_page.cookies.add_request_headers(headers) login_page = XML.parse_html(login_page.body) inputs = {} of String => String login_page.xpath_nodes(%q(//input[@type="submit"])).each do |node| name = node["id"]? || node["name"]? name ||= "" value = node["value"]? value ||= "" if name != "" && value != "" inputs[name] = value end end login_page.xpath_nodes(%q(//input[@type="hidden"])).each do |node| name = node["id"]? || node["name"]? name ||= "" value = node["value"]? value ||= "" if name != "" && value != "" inputs[name] = value end end lookup_req = %(["#{email}",null,[],null,"US",null,null,2,false,true,[null,null,[2,1,null,1,"https://accounts.google.com/ServiceLogin?passive=1209600&continue=https%3A%2F%2Faccounts.google.com%2FManageAccount&followup=https%3A%2F%2Faccounts.google.com%2FManageAccount",null,[],4,[]],1,[null,null,[]],null,null,null,true],"#{email}"]) lookup_results = client.post("/_/signin/sl/lookup", headers, login_req(inputs, lookup_req)) headers = lookup_results.cookies.add_request_headers(headers) lookup_results = lookup_results.body lookup_results = lookup_results[5..-1] lookup_results = JSON.parse(lookup_results) user_hash = lookup_results[0][2] challenge_req = %(["#{user_hash}",null,1,null,[1,null,null,null,["#{password}",null,true]],[null,null,[2,1,null,1,"https://accounts.google.com/ServiceLogin?passive=1209600&continue=https%3A%2F%2Faccounts.google.com%2FManageAccount&followup=https%3A%2F%2Faccounts.google.com%2FManageAccount",null,[],4,[]],1,[null,null,[]],null,null,null,true]]) challenge_results = client.post("/_/signin/sl/challenge", headers, login_req(inputs, challenge_req)) headers = challenge_results.cookies.add_request_headers(headers) challenge_results = challenge_results.body challenge_results = challenge_results[5..-1] challenge_results = JSON.parse(challenge_results) headers["Cookie"] = URI.unescape(headers["Cookie"]) if challenge_results[0][-1]?.try &.[5] == "INCORRECT_ANSWER_ENTERED" error_message = "Incorrect password" next templated "error" end if challenge_results[0][-1][0].as_a? tfa = challenge_results[0][-1][0][0] if tfa[2] == "TWO_STEP_VERIFICATION" if tfa[5] == "QUOTA_EXCEEDED" error_message = "Quota exceeded, try again in a few hours" next templated "error" end if !tfa_code next env.redirect "/login?tfa=true" end tl = challenge_results[1][2] request_type = tfa[8] case request_type when 6 # Authenticator app tfa_req = %(["#{user_hash}",null,2,null,[6,null,null,null,null,["#{tfa_code}",false]]]) when 9 # Voice or text message tfa_req = %(["#{user_hash}",null,2,null,[9,null,null,null,null,null,null,null,[null,"#{tfa_code}",false,2]]]) else error_message = "Unable to login, make sure two-factor authentication (Authenticator or SMS) is enabled." next templated "error" end challenge_results = client.post("/_/signin/challenge?hl=en&TL=#{tl}", headers, login_req(inputs, tfa_req)) headers = challenge_results.cookies.add_request_headers(headers) challenge_results = challenge_results.body challenge_results = challenge_results[5..-1] challenge_results = JSON.parse(challenge_results) if challenge_results[0][-1]?.try &.[5] == "INCORRECT_ANSWER_ENTERED" error_message = "Invalid TFA code" next templated "error" end end end login_res = challenge_results[0][13][2].to_s login = client.get(login_res, headers) headers = login.cookies.add_request_headers(headers) login = client.get(login.headers["Location"], headers) headers = HTTP::Headers.new headers = login.cookies.add_request_headers(headers) sid = login.cookies["SID"].value client = make_client(YT_URL) user = get_user(sid, client, headers, PG_DB) # We are now logged in host = URI.parse(env.request.headers["Host"]).host login.cookies.each do |cookie| cookie.secure = false cookie.extension = cookie.extension.not_nil!.gsub(".youtube.com", host) cookie.extension = cookie.extension.not_nil!.gsub("Secure; ", "") end login.cookies.add_response_headers(env.response.headers) env.redirect referer rescue ex error_message = "Login failed. This may be because two-factor authentication is not enabled on your account." next templated "error" end end get "/signout" do |env| referer = env.request.headers["referer"]? referer ||= "/" env.request.cookies.each do |cookie| cookie.expires = Time.new(1990, 1, 1) end env.request.cookies.add_response_headers(env.response.headers) env.redirect referer end get "/preferences" do |env| user = env.get? "user" referer = env.request.headers["referer"]? referer ||= "/preferences" if referer.size > 64 referer = "/preferences" end if user user = user.as(User) templated "preferences" else env.redirect referer end end post "/preferences" do |env| user = env.get? "user" referer = env.params.query["referer"]? referer ||= "/preferences" if user user = user.as(User) video_loop = env.params.body["video_loop"]?.try &.as(String) video_loop ||= "off" video_loop = video_loop == "on" autoplay = env.params.body["autoplay"]?.try &.as(String) autoplay ||= "off" autoplay = autoplay == "on" speed = env.params.body["speed"]?.try &.as(String).to_f speed ||= 1.0 quality = env.params.body["quality"]?.try &.as(String) quality ||= "hd720" volume = env.params.body["volume"]?.try &.as(String).to_i volume ||= 100 dark_mode = env.params.body["dark_mode"]?.try &.as(String) dark_mode ||= "off" dark_mode = dark_mode == "on" max_results = env.params.body["max_results"]?.try &.as(String).to_i max_results ||= 40 preferences = { "video_loop" => video_loop, "autoplay" => autoplay, "speed" => speed, "quality" => quality, "volume" => volume, "dark_mode" => dark_mode, "max_results" => max_results, }.to_json PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", preferences, user.email) end env.redirect referer end # Get subscriptions for authorized user get "/feed/subscriptions" do |env| user = env.get? "user" if user user = user.as(User) max_results = user.preferences.max_results max_results ||= env.params.query["maxResults"]?.try &.to_i max_results ||= 40 page = env.params.query["page"]?.try &.to_i page ||= 1 if max_results < 0 limit = nil offset = (page - 1) * 1 else limit = max_results offset = (page - 1) * max_results end args = arg_array(user.subscriptions, 3) videos = PG_DB.query_all("SELECT * FROM channel_videos WHERE ucid IN (#{args}) \ ORDER BY published DESC LIMIT $1 OFFSET $2", [limit, offset] + user.subscriptions, as: ChannelVideo) notifications = PG_DB.query_one("SELECT notifications FROM users WHERE email = $1", user.email, as: Array(String)) notifications = videos.select { |v| notifications.includes? v.id } videos = videos - notifications if !limit videos = videos[0..max_results] end PG_DB.exec("UPDATE users SET notifications = $1 WHERE id = $2", [] of String, user.id) env.set "notifications", 0 templated "subscriptions" else env.redirect "/" end end # Function that is useful if you have multiple channels that don't have # the bell dinged. Request parameters are fairly self-explanatory, # receive_all_updates = true and receive_post_updates = true will ding all # channels. Calling /modify_notifications without any arguments will # request all notifications from all channels. # /modify_notifications?receive_all_updates=false&receive_no_updates=false # will "unding" all subscriptions. get "/modify_notifications" do |env| user = env.get? "user" referer = env.request.headers["referer"]? referer ||= "/" if user user = user.as(User) 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) subs = client.get("/subscription_manager?disable_polymer=1", headers) headers["Cookie"] += "; " + subs.cookies.add_request_headers(headers)["Cookie"] match = subs.body.match(/'XSRF_TOKEN': "(?[A-Za-z0-9\_\-\=]+)"/) if match session_token = match["session_token"] else next env.redirect referer end channel_req["session_token"] = session_token headers["content-type"] = "application/x-www-form-urlencoded" subs = XML.parse_html(subs.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, HTTP::Params.encode(channel_req)).body end end env.redirect referer end get "/subscription_manager" do |env| user = env.get? "user" if !user next env.redirect "/" end user = user.as(User) subscriptions = user.subscriptions subscriptions ||= [] of String client = make_client(YT_URL) subscriptions = subscriptions.map do |ucid| get_channel(ucid, client, PG_DB, false) end subscriptions.sort_by! { |channel| channel.author.downcase } templated "subscription_manager" end get "/subscription_ajax" do |env| user = env.get? "user" referer = env.request.headers["referer"]? referer ||= "/" if user user = user.as(User) if env.params.query["action_create_subscription_to_channel"]? action = "action_create_subscription_to_channel" elsif env.params.query["action_remove_subscriptions"]? action = "action_remove_subscriptions" else next env.redirect referer end channel_id = env.params.query["c"]? channel_id ||= "" headers = HTTP::Headers.new headers["Cookie"] = env.request.headers["Cookie"] client = make_client(YT_URL) subs = client.get("/subscription_manager?disable_polymer=1", headers) headers["Cookie"] += "; " + subs.cookies.add_request_headers(headers)["Cookie"] match = subs.body.match(/'XSRF_TOKEN': "(?[A-Za-z0-9\_\-\=]+)"/) if match session_token = match["session_token"] else next env.redirect "/" end headers["content-type"] = "application/x-www-form-urlencoded" post_req = { "session_token" => session_token, } post_req = HTTP::Params.encode(post_req) post_url = "/subscription_ajax?#{action}=1&c=#{channel_id}" # Update user if client.post(post_url, headers, post_req).status_code == 200 sid = user.id case action when .starts_with? "action_create" PG_DB.exec("UPDATE users SET subscriptions = array_append(subscriptions,$1) WHERE id = $2", channel_id, sid) when .starts_with? "action_remove" PG_DB.exec("UPDATE users SET subscriptions = array_remove(subscriptions,$1) WHERE id = $2", channel_id, sid) end end end env.redirect referer end get "/user/:user" do |env| user = env.params.url["user"] env.redirect "/channel/#{user}" end get "/channel/:ucid" do |env| 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 client = make_client(YT_URL) if !ucid.starts_with? "UC" rss = client.get("/feeds/videos.xml?user=#{ucid}").body rss = XML.parse_html(rss) ucid = rss.xpath_node("//feed/channelid").not_nil!.content env.redirect "/channel/#{ucid}" end url = produce_playlist_url(ucid, (page - 1) * 100) response = client.get(url) json = JSON.parse(response.body) document = XML.parse_html(json["content_html"].as_s) author = document.xpath_node(%q(//div[@class="pl-video-owner"]/a)).not_nil!.content videos = [] of ChannelVideo document.xpath_nodes(%q(//a[contains(@class,"pl-video-title-link")])).each do |item| href = URI.parse(item["href"]) id = HTTP::Params.parse(href.query.not_nil!)["v"] title = item.content videos << ChannelVideo.new(id, title, Time.now, Time.now, ucid, author) end templated "channel" end get "/redirect" do |env| if env.params.query["q"]? env.redirect env.params.query["q"] else env.redirect "/" end 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"] client = make_client(YT_URL) begin video = get_video(id, client, PG_DB) rescue ex halt env, status_code: 403 end if video.info["dashmpd"]? manifest = client.get(video.info["dashmpd"]).body manifest = manifest.gsub(/[^<]+<\/BaseURL>/) do |baseurl| url = baseurl.lchop("") url = url.rchop("") if local if Kemal.config.ssl scheme = "https://" end scheme ||= "http://" url = scheme + env.request.headers["Host"] + URI.parse(url).full_path end "#{url}" end next manifest end adaptive_fmts = [] of HTTP::Params if video.info.has_key?("adaptive_fmts") video.info["adaptive_fmts"].split(",") do |string| adaptive_fmts << HTTP::Params.parse(string) end else halt env, status_code: 403 end if local adaptive_fmts.each do |fmt| if Kemal.config.ssl scheme = "https://" end scheme ||= "http://" fmt["url"] = scheme + env.request.headers["Host"] + URI.parse(fmt["url"]).full_path end end if adaptive_fmts[0]? && adaptive_fmts[0]["s"]? adaptive_fmts.each do |fmt| fmt["url"] += "&signature=" + decrypt_signature(fmt["s"]) end end video_streams = adaptive_fmts.compact_map { |s| s["type"].starts_with?("video/mp4") ? s : nil } audio_streams = adaptive_fmts.compact_map { |s| s["type"].starts_with?("audio/mp4") ? s : nil } audio_streams.sort_by! { |s| s["bitrate"].to_i }.reverse! audio_streams.each do |fmt| fmt["bitrate"] = (fmt["bitrate"].to_f64/1000).to_i.to_s end manifest = XML.build(indent: " ", encoding: "UTF-8") do |xml| xml.element("MPD", "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance", "xmlns": "urn:mpeg:DASH:schema:MPD:2011", "xmlns:yt": "http://youtube.com/yt/2012/10/10", "xsi:schemaLocation": "urn:mpeg:DASH:schema:MPD:2011 DASH-MPD.xsd", minBufferTime: "PT1.5S", profiles: "urn:mpeg:dash:profile:isoff-main:2011", type: "static", mediaPresentationDuration: "PT#{video.info["length_seconds"]}S") do xml.element("Period") do xml.element("AdaptationSet", id: 0, mimeType: "audio/mp4", subsegmentAlignment: true) do xml.element("Role", schemeIdUri: "urn:mpeg:DASH:role:2011", value: "main") audio_streams.each do |fmt| mimetype, codecs = fmt["type"].split(";") codecs = codecs[9..-2] fmt_type = mimetype.split("/")[0] bandwidth = fmt["bitrate"] itag = fmt["itag"] url = fmt["url"] url = url.gsub("?", "/") url = url.gsub("&", "/") url = url.gsub("=", "/") 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["init"]) do xml.element("Initialization", range: fmt["index"]) end end end end xml.element("AdaptationSet", id: 1, mimeType: "video/mp4", subsegmentAlignment: true) do xml.element("Role", schemeIdUri: "urn:mpeg:DASH:role:2011", value: "main") video_streams.each do |fmt| mimetype, codecs = fmt["type"].split(";") codecs = codecs[9..-2] bandwidth = fmt["bitrate"] itag = fmt["itag"] url = fmt["url"] url = url.gsub("?", "/") url = url.gsub("&", "/") url = url.gsub("=", "/") height, width = fmt["size"].split("x") xml.element("Representation", id: itag, codecs: codecs, width: width, startWithSAP: "1", maxPlayoutRate: "1", height: height, bandwidth: bandwidth, frameRate: fmt["fps"]) do xml.element("BaseURL") { xml.text url } xml.element("SegmentBase", indexRange: fmt["init"]) do xml.element("Initialization", range: fmt["index"]) end end end end end end end manifest = manifest.gsub(%(), %()) manifest = manifest.gsub(%(), %()) manifest end options "/videoplayback*" do |env| env.response.headers["Access-Control-Allow-Origin"] = "*" env.response.headers["Access-Control-Allow-Methods"] = "GET" env.response.headers["Access-Control-Allow-Headers"] = "Content-Type, range" end get "/videoplayback*" do |env| path = env.request.path if path != "/videoplayback" 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.unescape(value) if raw_params[key]? raw_params[key] << value else raw_params[key] = [value] end end query_params = HTTP::Params.new(raw_params) else query_params = env.params.query end fvip = query_params["fvip"] mn = query_params["mn"].split(",")[0] host = "https://r#{fvip}---#{mn}.googlevideo.com" url = "/videoplayback?#{query_params.to_s}" client = make_client(URI.parse(host)) response = client.head(url) headers = env.request.headers headers.delete("Host") headers.delete("Cookie") headers.delete("User-Agent") headers.delete("Referer") client.get(url, headers) do |response| if response.headers["Location"]? url = URI.parse(response.headers["Location"]) env.response.headers["Access-Control-Allow-Origin"] = "*" env.redirect url.full_path else env.response.status_code = response.status_code response.headers.each do |key, value| env.response.headers[key] = value end env.response.headers["Access-Control-Allow-Origin"] = "*" begin chunk_size = 4096 size = 1 while size > 0 size = IO.copy(response.body_io, env.response.output, chunk_size) env.response.flush Fiber.yield end rescue ex break end end end end error 404 do |env| error_message = "404 Page not found" templated "error" end error 500 do |env| error_message = "500 Server error" templated "error" end # Add redirect if SSL is enabled if Kemal.config.ssl spawn do server = HTTP::Server.new do |context| redirect_url = "https://#{context.request.host}#{context.request.path}" if context.request.query redirect_url += "?#{context.request.query}" end context.response.headers.add("Location", redirect_url) context.response.status_code = 301 end server.bind_tcp "0.0.0.0", 80 server.listen end before_all do |env| env.response.headers.add("Strict-Transport-Security", "max-age=31536000; includeSubDomains; preload") end end static_headers do |response, filepath, filestat| response.headers.add("Cache-Control", "max-age=86400") end public_folder "assets" add_handler FilteredCompressHandler.new add_context_storage_type(User) Kemal.run