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			5947 lines
		
	
	
		
			171 KiB
		
	
	
	
		
			Crystal
		
	
	
	
	
	
			
		
		
	
	
			5947 lines
		
	
	
		
			171 KiB
		
	
	
	
		
			Crystal
		
	
	
	
	
	
# "Invidious" (which is an alternative front-end to YouTube)
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# Copyright (C) 2019  Omar Roth
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.
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require "digest/md5"
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require "file_utils"
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require "kemal"
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require "openssl/hmac"
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require "option_parser"
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require "pg"
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require "sqlite3"
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require "xml"
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require "yaml"
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require "zip"
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require "protodec/utils"
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require "./invidious/helpers/*"
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require "./invidious/*"
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ENV_CONFIG_NAME = "INVIDIOUS_CONFIG"
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CONFIG_STR = ENV.has_key?(ENV_CONFIG_NAME) ? ENV.fetch(ENV_CONFIG_NAME) : File.read("config/config.yml")
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CONFIG     = Config.from_yaml(CONFIG_STR)
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HMAC_KEY   = CONFIG.hmac_key || Random::Secure.hex(32)
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PG_URL = URI.new(
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  scheme: "postgres",
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  user: CONFIG.db.user,
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  password: CONFIG.db.password,
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  host: CONFIG.db.host,
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  port: CONFIG.db.port,
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  path: CONFIG.db.dbname,
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)
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PG_DB           = DB.open PG_URL
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ARCHIVE_URL     = URI.parse("https://archive.org")
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LOGIN_URL       = URI.parse("https://accounts.google.com")
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PUBSUB_URL      = URI.parse("https://pubsubhubbub.appspot.com")
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REDDIT_URL      = URI.parse("https://www.reddit.com")
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TEXTCAPTCHA_URL = URI.parse("http://textcaptcha.com")
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YT_URL          = URI.parse("https://www.youtube.com")
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YT_IMG_URL      = URI.parse("https://i.ytimg.com")
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CHARS_SAFE         = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"
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TEST_IDS           = {"AgbeGFYluEA", "BaW_jenozKc", "a9LDPn-MO4I", "ddFvjfvPnqk", "iqKdEhx-dD4"}
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MAX_ITEMS_PER_PAGE = 1500
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REQUEST_HEADERS_WHITELIST  = {"accept", "accept-encoding", "cache-control", "content-length", "if-none-match", "range"}
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RESPONSE_HEADERS_BLACKLIST = {"access-control-allow-origin", "alt-svc", "server"}
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HTTP_CHUNK_SIZE            = 10485760 # ~10MB
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CURRENT_BRANCH  = {{ "#{`git branch | sed -n '/* /s///p'`.strip}" }}
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CURRENT_COMMIT  = {{ "#{`git rev-list HEAD --max-count=1 --abbrev-commit`.strip}" }}
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CURRENT_VERSION = {{ "#{`git describe --tags --abbrev=0`.strip}" }}
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# This is used to determine the `?v=` on the end of file URLs (for cache busting). We
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# only need to expire modified assets, so we can use this to find the last commit that changes
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# any assets
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ASSET_COMMIT = {{ "#{`git rev-list HEAD --max-count=1 --abbrev-commit -- assets`.strip}" }}
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SOFTWARE = {
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  "name"    => "invidious",
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  "version" => "#{CURRENT_VERSION}-#{CURRENT_COMMIT}",
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  "branch"  => "#{CURRENT_BRANCH}",
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}
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LOCALES = {
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  "ar"    => load_locale("ar"),
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  "de"    => load_locale("de"),
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  "el"    => load_locale("el"),
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  "en-US" => load_locale("en-US"),
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  "eo"    => load_locale("eo"),
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  "es"    => load_locale("es"),
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  "eu"    => load_locale("eu"),
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  "fr"    => load_locale("fr"),
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  "is"    => load_locale("is"),
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  "it"    => load_locale("it"),
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  "ja"    => load_locale("ja"),
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  "nb-NO" => load_locale("nb-NO"),
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  "nl"    => load_locale("nl"),
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  "pt-BR" => load_locale("pt-BR"),
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  "pl"    => load_locale("pl"),
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  "ro"    => load_locale("ro"),
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  "ru"    => load_locale("ru"),
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  "tr"    => load_locale("tr"),
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  "uk"    => load_locale("uk"),
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  "zh-CN" => load_locale("zh-CN"),
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  "zh-TW" => load_locale("zh-TW"),
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}
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YT_POOL     = QUICPool.new(YT_URL, capacity: CONFIG.pool_size, timeout: 0.05)
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YT_IMG_POOL = QUICPool.new(YT_IMG_URL, capacity: CONFIG.pool_size, timeout: 0.05)
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config = CONFIG
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logger = Invidious::LogHandler.new
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Kemal.config.extra_options do |parser|
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  parser.banner = "Usage: invidious [arguments]"
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  parser.on("-c THREADS", "--channel-threads=THREADS", "Number of threads for refreshing channels (default: #{config.channel_threads})") do |number|
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    begin
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      config.channel_threads = number.to_i
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    rescue ex
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      puts "THREADS must be integer"
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      exit
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    end
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  end
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  parser.on("-f THREADS", "--feed-threads=THREADS", "Number of threads for refreshing feeds (default: #{config.feed_threads})") do |number|
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    begin
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      config.feed_threads = number.to_i
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    rescue ex
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      puts "THREADS must be integer"
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      exit
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    end
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  end
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  parser.on("-o OUTPUT", "--output=OUTPUT", "Redirect output (default: STDOUT)") do |output|
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    FileUtils.mkdir_p(File.dirname(output))
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    logger = Invidious::LogHandler.new(File.open(output, mode: "a"))
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  end
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  parser.on("-v", "--version", "Print version") do |output|
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    puts SOFTWARE.to_pretty_json
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    exit
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  end
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end
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Kemal::CLI.new ARGV
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# Check table integrity
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if CONFIG.check_tables
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  check_enum(PG_DB, logger, "privacy", PlaylistPrivacy)
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  check_table(PG_DB, logger, "channels", InvidiousChannel)
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  check_table(PG_DB, logger, "channel_videos", ChannelVideo)
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  check_table(PG_DB, logger, "playlists", InvidiousPlaylist)
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  check_table(PG_DB, logger, "playlist_videos", PlaylistVideo)
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  check_table(PG_DB, logger, "nonces", Nonce)
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  check_table(PG_DB, logger, "session_ids", SessionId)
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  check_table(PG_DB, logger, "users", User)
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  check_table(PG_DB, logger, "videos", Video)
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  if CONFIG.cache_annotations
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    check_table(PG_DB, logger, "annotations", Annotation)
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  end
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end
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# Start jobs
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refresh_channels(PG_DB, logger, config)
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refresh_feeds(PG_DB, logger, config)
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subscribe_to_feeds(PG_DB, logger, HMAC_KEY, config)
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statistics = {
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  "error" => "Statistics are not availabile.",
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}
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if config.statistics_enabled
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  spawn do
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    statistics = {
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      "version"           => "2.0",
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      "software"          => SOFTWARE,
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      "openRegistrations" => config.registration_enabled,
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      "usage"             => {
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        "users" => {
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          "total"          => PG_DB.query_one("SELECT count(*) FROM users", as: Int64),
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          "activeHalfyear" => PG_DB.query_one("SELECT count(*) FROM users WHERE CURRENT_TIMESTAMP - updated < '6 months'", as: Int64),
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          "activeMonth"    => PG_DB.query_one("SELECT count(*) FROM users WHERE CURRENT_TIMESTAMP - updated < '1 month'", as: Int64),
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        },
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      },
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      "metadata" => {
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        "updatedAt"              => Time.utc.to_unix,
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        "lastChannelRefreshedAt" => PG_DB.query_one?("SELECT updated FROM channels ORDER BY updated DESC LIMIT 1", as: Time).try &.to_unix || 0_i64,
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      },
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    }
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    loop do
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      sleep 1.minute
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      Fiber.yield
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      statistics["usage"].as(Hash)["users"].as(Hash)["total"] = PG_DB.query_one("SELECT count(*) FROM users", as: Int64)
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      statistics["usage"].as(Hash)["users"].as(Hash)["activeHalfyear"] = PG_DB.query_one("SELECT count(*) FROM users WHERE CURRENT_TIMESTAMP - updated < '6 months'", as: Int64)
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      statistics["usage"].as(Hash)["users"].as(Hash)["activeMonth"] = PG_DB.query_one("SELECT count(*) FROM users WHERE CURRENT_TIMESTAMP - updated < '1 month'", as: Int64)
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      statistics["metadata"].as(Hash(String, Int64))["updatedAt"] = Time.utc.to_unix
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      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
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    end
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  end
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end
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top_videos = [] of Video
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if config.top_enabled
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  spawn do
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    pull_top_videos(config, PG_DB) do |videos|
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      top_videos = videos
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    end
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  end
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end
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popular_videos = [] of ChannelVideo
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spawn do
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  pull_popular_videos(PG_DB) do |videos|
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    popular_videos = videos
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  end
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end
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decrypt_function = [] of {SigProc, Int32}
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spawn do
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  update_decrypt_function do |function|
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    decrypt_function = function
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  end
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end
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if CONFIG.captcha_key
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  spawn do
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    bypass_captcha(CONFIG.captcha_key, logger) do |cookies|
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      cookies.each do |cookie|
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        config.cookies << cookie
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      end
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      # Persist cookies between runs
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      CONFIG.cookies = config.cookies
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      File.write("config/config.yml", config.to_yaml)
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    end
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  end
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end
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connection_channel = Channel({Bool, Channel(PQ::Notification)}).new(32)
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spawn do
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  connections = [] of Channel(PQ::Notification)
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  PG.connect_listen(PG_URL, "notifications") { |event| connections.each { |connection| connection.send(event) } }
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  loop do
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    action, connection = connection_channel.receive
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    case action
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    when true
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      connections << connection
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    when false
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      connections.delete(connection)
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    end
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  end
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end
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before_all do |env|
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  host_url = make_host_url(config, Kemal.config)
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  env.response.headers["X-XSS-Protection"] = "1; mode=block"
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  env.response.headers["X-Content-Type-Options"] = "nosniff"
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  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"
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  env.response.headers["Referrer-Policy"] = "same-origin"
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  if (Kemal.config.ssl || config.https_only) && config.hsts
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    env.response.headers["Strict-Transport-Security"] = "max-age=31536000; includeSubDomains; preload"
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  end
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  next if {
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            "/sb/",
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            "/vi/",
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            "/s_p/",
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            "/yts/",
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            "/ggpht/",
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            "/api/manifest/",
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            "/videoplayback",
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            "/latest_version",
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          }.any? { |r| env.request.resource.starts_with? r }
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  begin
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    preferences = Preferences.from_json(env.request.cookies["PREFS"]?.try &.value || "{}")
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  rescue
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    preferences = Preferences.from_json("{}")
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  end
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  if env.request.cookies.has_key? "SID"
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    sid = env.request.cookies["SID"].value
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    if sid.starts_with? "v1:"
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      raise "Cannot use token as SID"
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    end
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    # Invidious users only have SID
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    if !env.request.cookies.has_key? "SSID"
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      if email = PG_DB.query_one?("SELECT email FROM session_ids WHERE id = $1", sid, as: String)
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        user = PG_DB.query_one("SELECT * FROM users WHERE email = $1", email, as: User)
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        csrf_token = generate_response(sid, {
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          ":authorize_token",
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          ":playlist_ajax",
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          ":signout",
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          ":subscription_ajax",
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          ":token_ajax",
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          ":watch_ajax",
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        }, HMAC_KEY, PG_DB, 1.week)
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        preferences = user.preferences
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        env.set "sid", sid
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        env.set "csrf_token", csrf_token
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        env.set "user", user
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      end
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    else
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      headers = HTTP::Headers.new
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      headers["Cookie"] = env.request.headers["Cookie"]
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      begin
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        user, sid = get_user(sid, headers, PG_DB, false)
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        csrf_token = generate_response(sid, {
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          ":authorize_token",
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          ":playlist_ajax",
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          ":signout",
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          ":subscription_ajax",
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          ":token_ajax",
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          ":watch_ajax",
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        }, HMAC_KEY, PG_DB, 1.week)
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        preferences = user.preferences
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        env.set "sid", sid
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        env.set "csrf_token", csrf_token
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        env.set "user", user
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      rescue ex
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      end
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    end
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  end
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  dark_mode = convert_theme(env.params.query["dark_mode"]?) || preferences.dark_mode.to_s
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  thin_mode = env.params.query["thin_mode"]? || preferences.thin_mode.to_s
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  thin_mode = thin_mode == "true"
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  locale = env.params.query["hl"]? || preferences.locale
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  preferences.dark_mode = dark_mode
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  preferences.thin_mode = thin_mode
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  preferences.locale = locale
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  env.set "preferences", preferences
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  current_page = env.request.path
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  if env.request.query
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    query = HTTP::Params.parse(env.request.query.not_nil!)
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    if query["referer"]?
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      query["referer"] = get_referer(env, "/")
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    end
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 | 
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    current_page += "?#{query}"
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  end
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  env.set "current_page", URI.encode_www_form(current_page)
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end
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get "/" do |env|
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  preferences = env.get("preferences").as(Preferences)
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  locale = LOCALES[preferences.locale]?
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  user = env.get? "user"
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 | 
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  case preferences.default_home
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  when ""
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    templated "empty"
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  when "Popular"
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    templated "popular"
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  when "Top"
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    if config.top_enabled
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      templated "top"
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    else
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      templated "empty"
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    end
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  when "Trending"
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    env.redirect "/feed/trending"
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  when "Subscriptions"
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    if user
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      env.redirect "/feed/subscriptions"
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    else
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      templated "popular"
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    end
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  when "Playlists"
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    if user
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      env.redirect "/view_all_playlists"
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    else
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      templated "popular"
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    end
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  end
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end
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get "/privacy" do |env|
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  locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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  templated "privacy"
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end
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get "/licenses" do |env|
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  locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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  rendered "licenses"
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end
 | 
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# Videos
 | 
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get "/watch" do |env|
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  locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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  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("+")
 | 
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    next env.redirect url
 | 
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  end
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 | 
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  if env.params.query["v"]?
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    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"
 | 
						|
    response = YT_POOL.client &.get("/embed/live_stream?channel=#{env.params.query["channel"]? || ""}")
 | 
						|
    video_id = response.body.match(/"video_id":"(?<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"]?
 | 
						|
  prompt = nil
 | 
						|
 | 
						|
  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
 | 
						|
    # TODO: Convert to QUIC
 | 
						|
    begin
 | 
						|
      client = QUIC::Client.new(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"
 | 
						|
 | 
						|
      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}.<br/>"
 | 
						|
 | 
						|
      user_hash = lookup_results[0][2]
 | 
						|
 | 
						|
      if token = env.params.body["token"]?
 | 
						|
        answer = env.params.body["answer"]?
 | 
						|
        captcha = {token, answer}
 | 
						|
      else
 | 
						|
        captcha = nil
 | 
						|
      end
 | 
						|
 | 
						|
      challenge_req = {
 | 
						|
        user_hash, nil, 1, nil,
 | 
						|
        {1, nil, nil, nil,
 | 
						|
         {password, captcha, 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}.<br/>"
 | 
						|
 | 
						|
      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
 | 
						|
 | 
						|
      if token = challenge_results[0][-1]?.try &.[-1]?.try &.as_h?.try &.["5001"]?.try &.[-1].as_a?.try &.[-1].as_s
 | 
						|
        account_type = "google"
 | 
						|
        captcha_type = "image"
 | 
						|
        prompt = nil
 | 
						|
        tfa = tfa_code
 | 
						|
        captcha = {tokens: [token], question: ""}
 | 
						|
 | 
						|
        next templated "login"
 | 
						|
      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}.<br/>"
 | 
						|
        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.<br/>"
 | 
						|
        else
 | 
						|
          traceback << "Using challenge #{challenge_results[0][-1][0][0][8]}.<br/>"
 | 
						|
          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 = nil
 | 
						|
          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.<br/>"
 | 
						|
      end
 | 
						|
 | 
						|
      traceback << "Logging in..."
 | 
						|
 | 
						|
      location = URI.parse(challenge_results[0][-1][2].to_s)
 | 
						|
      cookies = HTTP::Cookies.from_headers(headers)
 | 
						|
 | 
						|
      headers.delete("Content-Type")
 | 
						|
      headers.delete("Google-Accounts-XSRF")
 | 
						|
 | 
						|
      loop do
 | 
						|
        if !location || location.path == "/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.path.starts_with? "/b/0/SmsAuthInterstitial"
 | 
						|
          traceback << "Unhandled dialog /b/0/SmsAuthInterstitial."
 | 
						|
        end
 | 
						|
 | 
						|
        login = client.get(location.full_path, headers)
 | 
						|
 | 
						|
        headers = login.cookies.add_request_headers(headers)
 | 
						|
        location = login.headers["Location"]?.try { |u| URI.parse(u) }
 | 
						|
      end
 | 
						|
 | 
						|
      cookies = HTTP::Cookies.from_headers(headers)
 | 
						|
      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.<br/>"
 | 
						|
 | 
						|
      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}<br/>Traceback:<br/><div style="padding-left:2em" id="traceback">#{traceback.gets_to_end}</div>)
 | 
						|
      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"
 | 
						|
 | 
						|
  show_nick = env.params.body["show_nick"]?.try &.as(String)
 | 
						|
  show_nick ||= "off"
 | 
						|
  show_nick = show_nick == "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,
 | 
						|
    show_nick:              show_nick,
 | 
						|
    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"]
 | 
						|
 | 
						|
    html = YT_POOL.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': "(?<session_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
 | 
						|
 | 
						|
      YT_POOL.client &.post("/subscription_ajax?action_update_subscription_preferences=1", headers, form: channel_req)
 | 
						|
    end
 | 
						|
  end
 | 
						|
 | 
						|
  if redirect
 | 
						|
    env.redirect referer
 | 
						|
  else
 | 
						|
    env.response.content_type = "application/json"
 | 
						|
    "{}"
 | 
						|
  end
 | 
						|
end
 | 
						|
 | 
						|
post "/subscription_ajax" do |env|
 | 
						|
  locale = LOCALES[env.get("preferences").as(Preferences).locale]?
 | 
						|
 | 
						|
  user = env.get? "user"
 | 
						|
  sid = env.get? "sid"
 | 
						|
  referer = get_referer(env, "/")
 | 
						|
 | 
						|
  redirect = env.params.query["redirect"]?
 | 
						|
  redirect ||= "true"
 | 
						|
  redirect = redirect == "true"
 | 
						|
 | 
						|
  if !user
 | 
						|
    if redirect
 | 
						|
      next env.redirect referer
 | 
						|
    else
 | 
						|
      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(%(<?xml version="1.0"?>\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 %(<meta http-equiv="refresh" content="0; url=#{referer}">)
 | 
						|
      env.response.puts %(<link rel="stylesheet" href="/css/ionicons.min.css?v=#{ASSET_COMMIT}">)
 | 
						|
      env.response.puts %(<link rel="stylesheet" href="/css/default.css?v=#{ASSET_COMMIT}">)
 | 
						|
      if env.get("preferences").as(Preferences).dark_mode == "dark"
 | 
						|
        env.response.puts %(<link rel="stylesheet" href="/css/darktheme.css?v=#{ASSET_COMMIT}">)
 | 
						|
      else
 | 
						|
        env.response.puts %(<link rel="stylesheet" href="/css/lighttheme.css?v=#{ASSET_COMMIT}">)
 | 
						|
      end
 | 
						|
      env.response.puts %(<h3><div class="loading"><i class="icon ion-ios-refresh"></i></div></h3>)
 | 
						|
      env.response.flush
 | 
						|
 | 
						|
      loop do
 | 
						|
        env.response.puts %(<!-- keepalive #{Time.utc.to_unix} -->)
 | 
						|
        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":"(?<channel_id>[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\/(?<channel>UC[a-zA-Z0-9_-]{22})/)
 | 
						|
            next match["channel"]
 | 
						|
          elsif match = channel["url"].as_s.match(/\/user\/(?<user>.+)/)
 | 
						|
            response = YT_POOL.client &.get("/user/#{match["user"]}?disable_polymer=1&hl=en&gl=US")
 | 
						|
            html = XML.parse_html(response.body)
 | 
						|
            ucid = html.xpath_node(%q(//link[@rel="canonical"])).try &.["href"].split("/")[-1]
 | 
						|
            next ucid if ucid
 | 
						|
          end
 | 
						|
 | 
						|
          nil
 | 
						|
        end
 | 
						|
        user.subscriptions.uniq!
 | 
						|
 | 
						|
        user.subscriptions = get_batch_channels(user.subscriptions, PG_DB, false, false)
 | 
						|
 | 
						|
        PG_DB.exec("UPDATE users SET feed_needs_update = true, subscriptions = $1 WHERE email = $2", user.subscriptions, user.email)
 | 
						|
      when "import_newpipe"
 | 
						|
        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
 | 
						|
 | 
						|
  rss = YT_POOL.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
 | 
						|
 | 
						|
  response = YT_POOL.client &.get("/feeds/videos.xml?playlist_id=#{plid}")
 | 
						|
  document = XML.parse(response.body)
 | 
						|
 | 
						|
  document.xpath_nodes(%q(//*[@href]|//*[@url])).each do |node|
 | 
						|
    node.attributes.each do |attribute|
 | 
						|
      case attribute.name
 | 
						|
      when "url", "href"
 | 
						|
        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>(?<url>[^<]+)<\/uri>/).each do |match|
 | 
						|
    content = "#{host_url}#{URI.parse(match["url"]).full_path}"
 | 
						|
    document = document.gsub(match[0], "<uri>#{content}</uri>")
 | 
						|
  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 { |email| %((E'#{email.gsub({'\'' => "\\'", '\\' => "\\\\"})}')) }.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]?
 | 
						|
 | 
						|
    # Appears to be a bug in routing, having several routes configured
 | 
						|
    # as `/a/:a`, `/b/:a`, `/c/:a` results in 404
 | 
						|
    value = env.request.resource.split("/")[2]
 | 
						|
    body = ""
 | 
						|
    {"channel", "user", "c"}.each do |type|
 | 
						|
      response = YT_POOL.client &.get("/#{type}/#{value}/live?disable_polymer=1")
 | 
						|
      if response.status_code == 200
 | 
						|
        body = response.body
 | 
						|
      end
 | 
						|
    end
 | 
						|
 | 
						|
    video_id = body.match(/'VIDEO_ID': "(?<id>[a-zA-Z0-9_-]{11})"/).try &.["id"]?
 | 
						|
    if video_id
 | 
						|
      params = [] of String
 | 
						|
      env.params.query.each do |k, v|
 | 
						|
        params << "#{k}=#{v}"
 | 
						|
      end
 | 
						|
      params = params.join("&")
 | 
						|
 | 
						|
      url = "/watch?v=#{video_id}"
 | 
						|
      if !params.empty?
 | 
						|
        url += "&#{params}"
 | 
						|
      end
 | 
						|
 | 
						|
      env.redirect url
 | 
						|
    else
 | 
						|
      env.redirect "/channel/#{value}"
 | 
						|
    end
 | 
						|
  end
 | 
						|
end
 | 
						|
 | 
						|
# YouTube appears to let users set a "brand" URL that
 | 
						|
# is different from their username, so we convert that here
 | 
						|
get "/c/:user" do |env|
 | 
						|
  locale = LOCALES[env.get("preferences").as(Preferences).locale]?
 | 
						|
 | 
						|
  user = env.params.url["user"]
 | 
						|
 | 
						|
  response = YT_POOL.client &.get("/c/#{user}")
 | 
						|
  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"]?
 | 
						|
 | 
						|
  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.
 | 
						|
 | 
						|
  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"
 | 
						|
 | 
						|
  if lang
 | 
						|
    caption = captions.select { |caption| caption.languageCode == lang }
 | 
						|
  else
 | 
						|
    caption = captions.select { |caption| caption.name.simpleText == label }
 | 
						|
  end
 | 
						|
 | 
						|
  if caption.empty?
 | 
						|
    env.response.status_code = 404
 | 
						|
    next
 | 
						|
  else
 | 
						|
    caption = caption[0]
 | 
						|
  end
 | 
						|
 | 
						|
  url = URI.parse("#{caption.baseUrl}&tlang=#{tlang}").full_path
 | 
						|
 | 
						|
  # Auto-generated captions often have cues that aren't aligned properly with the video,
 | 
						|
  # as well as some other markup that makes it cumbersome, so we try to fix that here
 | 
						|
  if caption.name.simpleText.includes? "auto-generated"
 | 
						|
    caption_xml = YT_POOL.client &.get(url).body
 | 
						|
    caption_xml = XML.parse(caption_xml)
 | 
						|
 | 
						|
    webvtt = String.build do |str|
 | 
						|
      str << <<-END_VTT
 | 
						|
      WEBVTT
 | 
						|
      Kind: captions
 | 
						|
      Language: #{tlang || caption.languageCode}
 | 
						|
 | 
						|
 | 
						|
      END_VTT
 | 
						|
 | 
						|
      caption_nodes = caption_xml.xpath_nodes("//transcript/text")
 | 
						|
      caption_nodes.each_with_index do |node, i|
 | 
						|
        start_time = node["start"].to_f.seconds
 | 
						|
        duration = node["dur"]?.try &.to_f.seconds
 | 
						|
        duration ||= start_time
 | 
						|
 | 
						|
        if caption_nodes.size > i + 1
 | 
						|
          end_time = caption_nodes[i + 1]["start"].to_f.seconds
 | 
						|
        else
 | 
						|
          end_time = start_time + duration
 | 
						|
        end
 | 
						|
 | 
						|
        start_time = "#{start_time.hours.to_s.rjust(2, '0')}:#{start_time.minutes.to_s.rjust(2, '0')}:#{start_time.seconds.to_s.rjust(2, '0')}.#{start_time.milliseconds.to_s.rjust(3, '0')}"
 | 
						|
        end_time = "#{end_time.hours.to_s.rjust(2, '0')}:#{end_time.minutes.to_s.rjust(2, '0')}:#{end_time.seconds.to_s.rjust(2, '0')}.#{end_time.milliseconds.to_s.rjust(3, '0')}"
 | 
						|
 | 
						|
        text = HTML.unescape(node.content)
 | 
						|
        text = text.gsub(/<font color="#[a-fA-F0-9]{6}">/, "")
 | 
						|
        text = text.gsub(/<\/font>/, "")
 | 
						|
        if md = text.match(/(?<name>.*) : (?<text>.*)/)
 | 
						|
          text = "<v #{md["name"]}>#{md["text"]}</v>"
 | 
						|
        end
 | 
						|
 | 
						|
        str << <<-END_CUE
 | 
						|
        #{start_time} --> #{end_time}
 | 
						|
        #{text}
 | 
						|
 | 
						|
 | 
						|
        END_CUE
 | 
						|
      end
 | 
						|
    end
 | 
						|
  else
 | 
						|
    webvtt = YT_POOL.client &.get("#{url}&format=vtt").body
 | 
						|
  end
 | 
						|
 | 
						|
  if title = env.params.query["title"]?
 | 
						|
    # https://blog.fastmail.com/2011/06/24/download-non-english-filenames/
 | 
						|
    env.response.headers["Content-Disposition"] = "attachment; filename=\"#{URI.encode_www_form(title)}\"; filename*=UTF-8''#{URI.encode_www_form(title)}"
 | 
						|
  end
 | 
						|
 | 
						|
  webvtt
 | 
						|
end
 | 
						|
 | 
						|
get "/api/v1/comments/:id" do |env|
 | 
						|
  locale = LOCALES[env.get("preferences").as(Preferences).locale]?
 | 
						|
  region = env.params.query["region"]?
 | 
						|
 | 
						|
  env.response.content_type = "application/json"
 | 
						|
 | 
						|
  id = env.params.url["id"]
 | 
						|
 | 
						|
  source = env.params.query["source"]?
 | 
						|
  source ||= "youtube"
 | 
						|
 | 
						|
  thin_mode = env.params.query["thin_mode"]?
 | 
						|
  thin_mode = thin_mode == "true"
 | 
						|
 | 
						|
  format = env.params.query["format"]?
 | 
						|
  format ||= "json"
 | 
						|
 | 
						|
  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"
 | 
						|
    response = YT_POOL.client &.get("/annotations_invideo?video_id=#{id}")
 | 
						|
 | 
						|
    if response.status_code != 200
 | 
						|
      env.response.status_code = response.status_code
 | 
						|
      next
 | 
						|
    end
 | 
						|
 | 
						|
    annotations = response.body
 | 
						|
  end
 | 
						|
 | 
						|
  etag = sha256(annotations)[0, 16]
 | 
						|
  if env.request.headers["If-None-Match"]?.try &.== etag
 | 
						|
    env.response.status_code = 304
 | 
						|
  else
 | 
						|
    env.response.headers["ETag"] = etag
 | 
						|
    annotations
 | 
						|
  end
 | 
						|
end
 | 
						|
 | 
						|
get "/api/v1/videos/:id" do |env|
 | 
						|
  locale = LOCALES[env.get("preferences").as(Preferences).locale]?
 | 
						|
 | 
						|
  env.response.content_type = "application/json"
 | 
						|
 | 
						|
  id = env.params.url["id"]
 | 
						|
  region = env.params.query["region"]?
 | 
						|
 | 
						|
  begin
 | 
						|
    video = get_video(id, PG_DB, region: region)
 | 
						|
  rescue ex : VideoRedirect
 | 
						|
    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 = QUIC::Client.new("suggestqueries.google.com")
 | 
						|
    client.family = CONFIG.force_resolve || Socket::Family::INET
 | 
						|
    client.family = Socket::Family::INET if client.family == Socket::Family::UNSPEC
 | 
						|
    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"]?.try { |q| (q == "true" || q == "1").to_unsafe }
 | 
						|
 | 
						|
  begin
 | 
						|
    video = get_video(id, PG_DB, region: region)
 | 
						|
  rescue ex : VideoRedirect
 | 
						|
    next env.redirect env.request.resource.gsub(id, ex.video_id)
 | 
						|
  rescue ex
 | 
						|
    env.response.status_code = 403
 | 
						|
    next
 | 
						|
  end
 | 
						|
 | 
						|
  if dashmpd = video.player_response["streamingData"]?.try &.["dashManifestUrl"]?.try &.as_s
 | 
						|
    manifest = YT_POOL.client &.get(URI.parse(dashmpd).full_path).body
 | 
						|
 | 
						|
    manifest = manifest.gsub(/<BaseURL>[^<]+<\/BaseURL>/) do |baseurl|
 | 
						|
      url = baseurl.lchop("<BaseURL>")
 | 
						|
      url = url.rchop("</BaseURL>")
 | 
						|
 | 
						|
      if local
 | 
						|
        url = URI.parse(url).full_path
 | 
						|
      end
 | 
						|
 | 
						|
      "<BaseURL>#{url}</BaseURL>"
 | 
						|
    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["size"].split("x")[0].to_i, 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 }
 | 
						|
          next if mime_streams.empty?
 | 
						|
 | 
						|
          heights = [] of Int32
 | 
						|
          xml.element("AdaptationSet", id: i, mimeType: mime_type, startWithSAP: 1, subsegmentAlignment: true, scanType: "progressive") do
 | 
						|
            mime_streams.each do |fmt|
 | 
						|
              codecs = fmt["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|
 | 
						|
  manifest = YT_POOL.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|
 | 
						|
  manifest = YT_POOL.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(?<fvip>\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(500)
 | 
						|
  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.downcase)
 | 
						|
            env.response.headers[key] = value
 | 
						|
          end
 | 
						|
        end
 | 
						|
 | 
						|
        env.response.headers["Access-Control-Allow-Origin"] = "*"
 | 
						|
 | 
						|
        if location = response.headers["Location"]?
 | 
						|
          location = URI.parse(location)
 | 
						|
          location = "#{location.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.downcase) && key.downcase != "content-range"
 | 
						|
                env.response.headers[key] = value
 | 
						|
              end
 | 
						|
            end
 | 
						|
 | 
						|
            env.response.headers["Access-Control-Allow-Origin"] = "*"
 | 
						|
 | 
						|
            if location = response.headers["Location"]?
 | 
						|
              location = URI.parse(location)
 | 
						|
              location = "#{location.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
 | 
						|
 | 
						|
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.downcase)
 | 
						|
          env.response.headers[key] = value
 | 
						|
        end
 | 
						|
      end
 | 
						|
 | 
						|
      env.response.headers["Access-Control-Allow-Origin"] = "*"
 | 
						|
 | 
						|
      if response.status_code >= 300
 | 
						|
        env.response.headers.delete("Transfer-Encoding")
 | 
						|
        break
 | 
						|
      end
 | 
						|
 | 
						|
      proxy_file(response, env)
 | 
						|
    end
 | 
						|
  rescue ex
 | 
						|
  end
 | 
						|
end
 | 
						|
 | 
						|
options "/sb/: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.downcase)
 | 
						|
          env.response.headers[key] = value
 | 
						|
        end
 | 
						|
      end
 | 
						|
 | 
						|
      env.response.headers["Access-Control-Allow-Origin"] = "*"
 | 
						|
 | 
						|
      if response.status_code >= 300
 | 
						|
        env.response.headers.delete("Transfer-Encoding")
 | 
						|
        break
 | 
						|
      end
 | 
						|
 | 
						|
      proxy_file(response, env)
 | 
						|
    end
 | 
						|
  rescue ex
 | 
						|
  end
 | 
						|
end
 | 
						|
 | 
						|
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.downcase)
 | 
						|
          env.response.headers[key] = value
 | 
						|
        end
 | 
						|
      end
 | 
						|
 | 
						|
      env.response.headers["Access-Control-Allow-Origin"] = "*"
 | 
						|
 | 
						|
      if response.status_code >= 300 && response.status_code != 404
 | 
						|
        env.response.headers.delete("Transfer-Encoding")
 | 
						|
        break
 | 
						|
      end
 | 
						|
 | 
						|
      proxy_file(response, env)
 | 
						|
    end
 | 
						|
  rescue ex
 | 
						|
  end
 | 
						|
end
 | 
						|
 | 
						|
get "/yts/img/:name" do |env|
 | 
						|
  headers = HTTP::Headers.new
 | 
						|
  REQUEST_HEADERS_WHITELIST.each do |header|
 | 
						|
    if env.request.headers[header]?
 | 
						|
      headers[header] = env.request.headers[header]
 | 
						|
    end
 | 
						|
  end
 | 
						|
 | 
						|
  begin
 | 
						|
    YT_POOL.client &.get(env.request.resource, headers) do |response|
 | 
						|
      env.response.status_code = response.status_code
 | 
						|
      response.headers.each do |key, value|
 | 
						|
        if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase)
 | 
						|
          env.response.headers[key] = value
 | 
						|
        end
 | 
						|
      end
 | 
						|
 | 
						|
      env.response.headers["Access-Control-Allow-Origin"] = "*"
 | 
						|
 | 
						|
      if response.status_code >= 300 && response.status_code != 404
 | 
						|
        env.response.headers.delete("Transfer-Encoding")
 | 
						|
        break
 | 
						|
      end
 | 
						|
 | 
						|
      proxy_file(response, env)
 | 
						|
    end
 | 
						|
  rescue ex
 | 
						|
  end
 | 
						|
end
 | 
						|
 | 
						|
get "/vi/:id/:name" do |env|
 | 
						|
  id = env.params.url["id"]
 | 
						|
  name = env.params.url["name"]
 | 
						|
 | 
						|
  if name == "maxres.jpg"
 | 
						|
    build_thumbnails(id, config, Kemal.config).each do |thumb|
 | 
						|
      if YT_IMG_POOL.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
 | 
						|
    YT_IMG_POOL.client &.get(url, headers) do |response|
 | 
						|
      env.response.status_code = response.status_code
 | 
						|
      response.headers.each do |key, value|
 | 
						|
        if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase)
 | 
						|
          env.response.headers[key] = value
 | 
						|
        end
 | 
						|
      end
 | 
						|
 | 
						|
      env.response.headers["Access-Control-Allow-Origin"] = "*"
 | 
						|
 | 
						|
      if response.status_code >= 300 && response.status_code != 404
 | 
						|
        env.response.headers.delete("Transfer-Encoding")
 | 
						|
        break
 | 
						|
      end
 | 
						|
 | 
						|
      proxy_file(response, env)
 | 
						|
    end
 | 
						|
  rescue ex
 | 
						|
  end
 | 
						|
end
 | 
						|
 | 
						|
get "/Captcha" do |env|
 | 
						|
  client = make_client(LOGIN_URL)
 | 
						|
  response = client.get(env.request.resource)
 | 
						|
  env.response.headers["Content-Type"] = response.headers["Content-Type"]
 | 
						|
  response.body
 | 
						|
end
 | 
						|
 | 
						|
# Undocumented, creates anonymous playlist with specified 'video_ids', max 50 videos
 | 
						|
get "/watch_videos" do |env|
 | 
						|
  response = YT_POOL.client &.get(env.request.resource)
 | 
						|
  if url = response.headers["Location"]?
 | 
						|
    url = URI.parse(url).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(/^\/(?<id>([a-zA-Z0-9_-]{11})|(\w+))$/)
 | 
						|
    item = md["id"]
 | 
						|
 | 
						|
    # Check if item is branding URL e.g. https://youtube.com/gaming
 | 
						|
    response = YT_POOL.client &.get("/#{item}")
 | 
						|
 | 
						|
    if response.status_code == 301
 | 
						|
      response = YT_POOL.client &.get(URI.parse(response.headers["Location"]).full_path)
 | 
						|
    end
 | 
						|
 | 
						|
    if response.body.empty?
 | 
						|
      env.response.headers["Location"] = "/"
 | 
						|
      halt env, status_code: 302
 | 
						|
    end
 | 
						|
 | 
						|
    html = XML.parse_html(response.body)
 | 
						|
    ucid = html.xpath_node(%q(//link[@rel="canonical"])).try &.["href"].split("/")[-1]
 | 
						|
 | 
						|
    if ucid
 | 
						|
      env.response.headers["Location"] = "/channel/#{ucid}"
 | 
						|
      halt env, status_code: 302
 | 
						|
    end
 | 
						|
 | 
						|
    params = [] of String
 | 
						|
    env.params.query.each do |k, v|
 | 
						|
      params << "#{k}=#{v}"
 | 
						|
    end
 | 
						|
    params = params.join("&")
 | 
						|
 | 
						|
    url = "/watch?v=#{item}"
 | 
						|
    if !params.empty?
 | 
						|
      url += "&#{params}"
 | 
						|
    end
 | 
						|
 | 
						|
    # Check if item is video ID
 | 
						|
    if item.match(/^[a-zA-Z0-9_-]{11}$/) && YT_POOL.client &.head("/watch?v=#{item}").status_code != 404
 | 
						|
      env.response.headers["Location"] = url
 | 
						|
      halt env, status_code: 302
 | 
						|
    end
 | 
						|
  end
 | 
						|
 | 
						|
  env.response.headers["Location"] = "/"
 | 
						|
  halt env, status_code: 302
 | 
						|
end
 | 
						|
 | 
						|
error 500 do |env|
 | 
						|
  error_message = <<-END_HTML
 | 
						|
  Looks like you've found a bug in Invidious. Feel free to open a new issue
 | 
						|
  <a href="https://github.com/omarroth/invidious/issues">here</a>
 | 
						|
  or send an email to
 | 
						|
  <a href="mailto:#{CONFIG.admin_email}">#{CONFIG.admin_email}</a>.
 | 
						|
  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
 |