mirror of
https://github.com/iv-org/invidious.git
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239 lines
7.9 KiB
Crystal
239 lines
7.9 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 "./ext/kemal_static_file_handler.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/http_server/*"
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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/videos/*"
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require "./invidious/jsonify/**"
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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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# Declare the base namespace for invidious
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module Invidious
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end
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# Simple alias to make code easier to read
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alias IV = Invidious
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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, this may take more than 20 minutes... If it is stuck, check your internet connection.\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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{% puts "\nDone checking player dependencies, now compiling Invidious...\n" %}
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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.register Invidious::Jobs::ClearExpiredItemsJob.new
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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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# Routing
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before_all do |env|
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Invidious::Routes::BeforeAll.handle(env)
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end
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Invidious::Routing.register_all
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error 404 do |env|
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Invidious::Routes::ErrorRoutes.error_404(env)
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end
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error 500 do |env, ex|
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error_template(500, ex)
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end
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static_headers do |response|
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response.headers.add("Cache-Control", "max-age=2629800")
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end
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# Init Kemal
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public_folder "assets"
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Kemal.config.powered_by_header = false
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add_handler FilteredCompressHandler.new
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add_handler APIHandler.new
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add_handler AuthHandler.new
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add_handler DenyFrame.new
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add_context_storage_type(Array(String))
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add_context_storage_type(Preferences)
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add_context_storage_type(Invidious::User)
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Kemal.config.logger = LOGGER
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Kemal.config.host_binding = Kemal.config.host_binding != "0.0.0.0" ? Kemal.config.host_binding : CONFIG.host_binding
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Kemal.config.port = Kemal.config.port != 3000 ? Kemal.config.port : CONFIG.port
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Kemal.config.app_name = "Invidious"
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# Use in kemal's production mode.
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# Users can also set the KEMAL_ENV environmental variable for this to be set automatically.
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{% if flag?(:release) || flag?(:production) %}
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Kemal.config.env = "production" if !ENV.has_key?("KEMAL_ENV")
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{% end %}
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Kemal.run
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