507 行
19 KiB
Crystal
507 行
19 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, kilt, then our own overrides
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require "kemal"
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require "kilt"
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require "./ext/kemal_content_for.cr"
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require "athena-negotiation"
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require "openssl/hmac"
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require "option_parser"
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require "sqlite3"
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require "xml"
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require "yaml"
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require "compress/zip"
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require "protodec/utils"
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require "./invidious/database/*"
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require "./invidious/database/migrations/*"
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require "./invidious/helpers/*"
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require "./invidious/yt_backend/*"
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require "./invidious/frontend/*"
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require "./invidious/*"
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require "./invidious/channels/*"
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require "./invidious/user/*"
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require "./invidious/search/*"
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require "./invidious/routes/**"
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require "./invidious/jobs/**"
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CONFIG = Config.load
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HMAC_KEY = CONFIG.hmac_key || Random::Secure.hex(32)
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PG_DB = DB.open CONFIG.database_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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YT_URL = URI.parse("https://www.youtube.com")
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HOST_URL = make_host_url(Kemal.config)
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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 log -1 --format=%ci | awk '{print $1}' | sed s/-/./g`.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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YT_POOL = YoutubeConnectionPool.new(YT_URL, capacity: CONFIG.pool_size, use_quic: CONFIG.use_quic)
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# CLI
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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: #{CONFIG.output})") do |output|
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CONFIG.output = output
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end
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parser.on("-l LEVEL", "--log-level=LEVEL", "Log level, one of #{LogLevel.values} (default: #{CONFIG.log_level})") do |log_level|
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CONFIG.log_level = LogLevel.parse(log_level)
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end
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parser.on("-v", "--version", "Print version") do
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puts SOFTWARE.to_pretty_json
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exit
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end
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parser.on("--migrate", "Run any migrations (beta, use at your own risk!!") do
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Invidious::Database::Migrator.new(PG_DB).migrate
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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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if CONFIG.output.upcase != "STDOUT"
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FileUtils.mkdir_p(File.dirname(CONFIG.output))
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end
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OUTPUT = CONFIG.output.upcase == "STDOUT" ? STDOUT : File.open(CONFIG.output, mode: "a")
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LOGGER = Invidious::LogHandler.new(OUTPUT, CONFIG.log_level)
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# Check table integrity
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Invidious::Database.check_integrity(CONFIG)
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{% if !flag?(:skip_videojs_download) %}
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# Resolve player dependencies. This is done at compile time.
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#
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# Running the script by itself would show some colorful feedback while this doesn't.
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# Perhaps we should just move the script to runtime in order to get that feedback?
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{% puts "\nChecking player dependencies...\n" %}
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{% if flag?(:minified_player_dependencies) %}
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{% puts run("../scripts/fetch-player-dependencies.cr", "--minified").stringify %}
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{% else %}
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{% puts run("../scripts/fetch-player-dependencies.cr").stringify %}
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{% end %}
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{% end %}
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# Start jobs
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if CONFIG.channel_threads > 0
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Invidious::Jobs.register Invidious::Jobs::RefreshChannelsJob.new(PG_DB)
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end
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if CONFIG.feed_threads > 0
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Invidious::Jobs.register Invidious::Jobs::RefreshFeedsJob.new(PG_DB)
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end
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DECRYPT_FUNCTION = DecryptFunction.new(CONFIG.decrypt_polling)
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if CONFIG.decrypt_polling
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Invidious::Jobs.register Invidious::Jobs::UpdateDecryptFunctionJob.new
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end
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if CONFIG.statistics_enabled
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Invidious::Jobs.register Invidious::Jobs::StatisticsRefreshJob.new(PG_DB, SOFTWARE)
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end
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if (CONFIG.use_pubsub_feeds.is_a?(Bool) && CONFIG.use_pubsub_feeds.as(Bool)) || (CONFIG.use_pubsub_feeds.is_a?(Int32) && CONFIG.use_pubsub_feeds.as(Int32) > 0)
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Invidious::Jobs.register Invidious::Jobs::SubscribeToFeedsJob.new(PG_DB, HMAC_KEY)
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end
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if CONFIG.popular_enabled
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Invidious::Jobs.register Invidious::Jobs::PullPopularVideosJob.new(PG_DB)
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end
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CONNECTION_CHANNEL = Channel({Bool, Channel(PQ::Notification)}).new(32)
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Invidious::Jobs.register Invidious::Jobs::NotificationJob.new(CONNECTION_CHANNEL, CONFIG.database_url)
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Invidious::Jobs.start_all
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def popular_videos
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Invidious::Jobs::PullPopularVideosJob::POPULAR_VIDEOS.get
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end
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before_all do |env|
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preferences = Preferences.from_json("{}")
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begin
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if prefs_cookie = env.request.cookies["PREFS"]?
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preferences = Preferences.from_json(URI.decode_www_form(prefs_cookie.value))
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else
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if language_header = env.request.headers["Accept-Language"]?
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if language = ANG.language_negotiator.best(language_header, LOCALES.keys)
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preferences.locale = language.header
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end
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end
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end
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rescue
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preferences = Preferences.from_json("{}")
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end
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env.set "preferences", preferences
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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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# Allow media resources to be loaded from google servers
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# TODO: check if *.youtube.com can be removed
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if CONFIG.disabled?("local") || !preferences.local
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extra_media_csp = " https://*.googlevideo.com:443 https://*.youtube.com:443"
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else
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extra_media_csp = ""
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end
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# Only allow the pages at /embed/* to be embedded
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if env.request.resource.starts_with?("/embed")
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frame_ancestors = "'self' http: https:"
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else
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frame_ancestors = "'none'"
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end
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# TODO: Remove style-src's 'unsafe-inline', requires to remove all
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# inline styles (<style> [..] </style>, style=" [..] ")
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env.response.headers["Content-Security-Policy"] = {
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"default-src 'none'",
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"script-src 'self'",
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"style-src 'self' 'unsafe-inline'",
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"img-src 'self' data:",
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"font-src 'self' data:",
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"connect-src 'self'",
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"manifest-src 'self'",
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"media-src 'self' blob:" + extra_media_csp,
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"child-src 'self' blob:",
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"frame-src 'self'",
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"frame-ancestors " + frame_ancestors,
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}.join("; ")
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env.response.headers["Referrer-Policy"] = "same-origin"
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# Ask the chrom*-based browsers to disable FLoC
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# See: https://blog.runcloud.io/google-floc/
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env.response.headers["Permissions-Policy"] = "interest-cohort=()"
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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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"/download",
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}.any? { |r| env.request.resource.starts_with? r }
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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 = Invidious::Database::SessionIDs.select_email(sid)
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user = Invidious::Database::Users.select!(email: email)
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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, 1.week)
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preferences = user.preferences
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env.set "preferences", 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, 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, 1.week)
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preferences = user.preferences
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env.set "preferences", 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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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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{% unless flag?(:api_only) %}
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Invidious::Routing.get "/", Invidious::Routes::Misc, :home
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Invidious::Routing.get "/privacy", Invidious::Routes::Misc, :privacy
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Invidious::Routing.get "/licenses", Invidious::Routes::Misc, :licenses
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Invidious::Routing.get "/channel/:ucid", Invidious::Routes::Channels, :home
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Invidious::Routing.get "/channel/:ucid/home", Invidious::Routes::Channels, :home
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Invidious::Routing.get "/channel/:ucid/videos", Invidious::Routes::Channels, :videos
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Invidious::Routing.get "/channel/:ucid/playlists", Invidious::Routes::Channels, :playlists
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Invidious::Routing.get "/channel/:ucid/community", Invidious::Routes::Channels, :community
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Invidious::Routing.get "/channel/:ucid/about", Invidious::Routes::Channels, :about
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Invidious::Routing.get "/channel/:ucid/live", Invidious::Routes::Channels, :live
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Invidious::Routing.get "/user/:user/live", Invidious::Routes::Channels, :live
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Invidious::Routing.get "/c/:user/live", Invidious::Routes::Channels, :live
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["", "/videos", "/playlists", "/community", "/about"].each do |path|
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# /c/LinusTechTips
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Invidious::Routing.get "/c/:user#{path}", Invidious::Routes::Channels, :brand_redirect
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# /user/linustechtips | Not always the same as /c/
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Invidious::Routing.get "/user/:user#{path}", Invidious::Routes::Channels, :brand_redirect
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# /attribution_link?a=anything&u=/channel/UCZYTClx2T1of7BRZ86-8fow
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Invidious::Routing.get "/attribution_link#{path}", Invidious::Routes::Channels, :brand_redirect
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# /profile?user=linustechtips
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Invidious::Routing.get "/profile/#{path}", Invidious::Routes::Channels, :profile
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end
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Invidious::Routing.get "/watch", Invidious::Routes::Watch, :handle
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Invidious::Routing.post "/watch_ajax", Invidious::Routes::Watch, :mark_watched
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Invidious::Routing.get "/watch/:id", Invidious::Routes::Watch, :redirect
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Invidious::Routing.get "/shorts/:id", Invidious::Routes::Watch, :redirect
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Invidious::Routing.get "/clip/:clip", Invidious::Routes::Watch, :clip
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Invidious::Routing.get "/w/:id", Invidious::Routes::Watch, :redirect
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Invidious::Routing.get "/v/:id", Invidious::Routes::Watch, :redirect
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Invidious::Routing.get "/e/:id", Invidious::Routes::Watch, :redirect
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Invidious::Routing.get "/redirect", Invidious::Routes::Misc, :cross_instance_redirect
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Invidious::Routing.post "/download", Invidious::Routes::Watch, :download
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Invidious::Routing.get "/embed/", Invidious::Routes::Embed, :redirect
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Invidious::Routing.get "/embed/:id", Invidious::Routes::Embed, :show
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Invidious::Routing.get "/create_playlist", Invidious::Routes::Playlists, :new
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Invidious::Routing.post "/create_playlist", Invidious::Routes::Playlists, :create
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Invidious::Routing.get "/subscribe_playlist", Invidious::Routes::Playlists, :subscribe
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Invidious::Routing.get "/delete_playlist", Invidious::Routes::Playlists, :delete_page
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Invidious::Routing.post "/delete_playlist", Invidious::Routes::Playlists, :delete
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Invidious::Routing.get "/edit_playlist", Invidious::Routes::Playlists, :edit
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Invidious::Routing.post "/edit_playlist", Invidious::Routes::Playlists, :update
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Invidious::Routing.get "/add_playlist_items", Invidious::Routes::Playlists, :add_playlist_items_page
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Invidious::Routing.post "/playlist_ajax", Invidious::Routes::Playlists, :playlist_ajax
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Invidious::Routing.get "/playlist", Invidious::Routes::Playlists, :show
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Invidious::Routing.get "/mix", Invidious::Routes::Playlists, :mix
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Invidious::Routing.get "/watch_videos", Invidious::Routes::Playlists, :watch_videos
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Invidious::Routing.get "/opensearch.xml", Invidious::Routes::Search, :opensearch
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Invidious::Routing.get "/results", Invidious::Routes::Search, :results
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Invidious::Routing.get "/search", Invidious::Routes::Search, :search
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# User routes
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define_user_routes()
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# Feeds
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Invidious::Routing.get "/view_all_playlists", Invidious::Routes::Feeds, :view_all_playlists_redirect
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Invidious::Routing.get "/feed/playlists", Invidious::Routes::Feeds, :playlists
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Invidious::Routing.get "/feed/popular", Invidious::Routes::Feeds, :popular
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Invidious::Routing.get "/feed/trending", Invidious::Routes::Feeds, :trending
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Invidious::Routing.get "/feed/subscriptions", Invidious::Routes::Feeds, :subscriptions
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Invidious::Routing.get "/feed/history", Invidious::Routes::Feeds, :history
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# RSS Feeds
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Invidious::Routing.get "/feed/channel/:ucid", Invidious::Routes::Feeds, :rss_channel
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Invidious::Routing.get "/feed/private", Invidious::Routes::Feeds, :rss_private
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Invidious::Routing.get "/feed/playlist/:plid", Invidious::Routes::Feeds, :rss_playlist
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Invidious::Routing.get "/feeds/videos.xml", Invidious::Routes::Feeds, :rss_videos
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# Support push notifications via PubSubHubbub
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Invidious::Routing.get "/feed/webhook/:token", Invidious::Routes::Feeds, :push_notifications_get
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Invidious::Routing.post "/feed/webhook/:token", Invidious::Routes::Feeds, :push_notifications_post
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Invidious::Routing.get "/modify_notifications", Invidious::Routes::Notifications, :modify
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Invidious::Routing.post "/subscription_ajax", Invidious::Routes::Subscriptions, :toggle_subscription
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Invidious::Routing.get "/subscription_manager", Invidious::Routes::Subscriptions, :subscription_manager
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{% end %}
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Invidious::Routing.get "/ggpht/*", Invidious::Routes::Images, :ggpht
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Invidious::Routing.options "/sb/:authority/:id/:storyboard/:index", Invidious::Routes::Images, :options_storyboard
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Invidious::Routing.get "/sb/:authority/:id/:storyboard/:index", Invidious::Routes::Images, :get_storyboard
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Invidious::Routing.get "/s_p/:id/:name", Invidious::Routes::Images, :s_p_image
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Invidious::Routing.get "/yts/img/:name", Invidious::Routes::Images, :yts_image
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Invidious::Routing.get "/vi/:id/:name", Invidious::Routes::Images, :thumbnails
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# API routes (macro)
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define_v1_api_routes()
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# Video playback (macros)
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define_api_manifest_routes()
|
|
define_video_playback_routes()
|
|
|
|
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"]).request_target)
|
|
end
|
|
|
|
if response.body.empty?
|
|
env.response.headers["Location"] = "/"
|
|
halt env, status_code: 302
|
|
end
|
|
|
|
html = XML.parse_html(response.body)
|
|
ucid = html.xpath_node(%q(//link[@rel="canonical"])).try &.["href"].split("/")[-1]
|
|
|
|
if ucid
|
|
env.response.headers["Location"] = "/channel/#{ucid}"
|
|
halt env, status_code: 302
|
|
end
|
|
|
|
params = [] of String
|
|
env.params.query.each do |k, v|
|
|
params << "#{k}=#{v}"
|
|
end
|
|
params = params.join("&")
|
|
|
|
url = "/watch?v=#{item}"
|
|
if !params.empty?
|
|
url += "&#{params}"
|
|
end
|
|
|
|
# Check if item is video ID
|
|
if item.match(/^[a-zA-Z0-9_-]{11}$/) && YT_POOL.client &.head("/watch?v=#{item}").status_code != 404
|
|
env.response.headers["Location"] = url
|
|
halt env, status_code: 302
|
|
end
|
|
end
|
|
|
|
env.response.headers["Location"] = "/"
|
|
halt env, status_code: 302
|
|
end
|
|
|
|
error 500 do |env, ex|
|
|
locale = env.get("preferences").as(Preferences).locale
|
|
error_template(500, ex)
|
|
end
|
|
|
|
static_headers do |response|
|
|
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(Invidious::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.config.app_name = "Invidious"
|
|
|
|
# Use in kemal's production mode.
|
|
# Users can also set the KEMAL_ENV environmental variable for this to be set automatically.
|
|
{% if flag?(:release) || flag?(:production) %}
|
|
Kemal.config.env = "production" if !ENV.has_key?("KEMAL_ENV")
|
|
{% end %}
|
|
|
|
Kemal.run
|