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https://github.com/iv-org/invidious.git
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556 lines
16 KiB
Crystal
556 lines
16 KiB
Crystal
# "Invidious" (which is what YouTube should be)
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# Copyright (C) 2018 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 "detect_language"
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require "kemal"
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require "option_parser"
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require "pg"
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require "xml"
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require "yaml"
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require "./helpers"
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require "./cookie_fix"
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CONFIG = Config.from_yaml(File.read("config/config.yml"))
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pool_size = CONFIG.pool_size
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threads = CONFIG.threads
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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("-z SIZE", "--youtube-pool=SIZE", "Number of clients in youtube pool (default: #{pool_size})") do |number|
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begin
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pool_size = number.to_i
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rescue ex
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puts "SIZE must be integer"
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exit
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end
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end
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parser.on("-t THREADS", "--youtube-threads=THREADS", "Number of threads for crawling (default: #{threads})") do |number|
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begin
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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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end
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Kemal::CLI.new
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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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YT_URL = URI.parse("https://www.youtube.com")
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REDDIT_URL = URI.parse("https://api.reddit.com")
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LOGIN_URL = URI.parse("https://accounts.google.com")
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youtube_pool = Deque.new(pool_size) do
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make_client(YT_URL)
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end
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# Refresh youtube_pool by crawling YT
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threads.times do
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spawn do
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ids = Deque(String).new
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random = Random.new
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client = get_client(youtube_pool)
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search(random.base64(3), client) do |id|
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ids << id
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end
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youtube_pool << client
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loop do
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client = get_client(youtube_pool)
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if ids.empty?
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search(random.base64(3), client) do |id|
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ids << id
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end
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end
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begin
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id = ids[0]
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video = get_video(id, client, PG_DB)
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rescue ex
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STDOUT << id << " : " << ex.message << "\n"
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youtube_pool << make_client(YT_URL)
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next
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ensure
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ids.delete(id)
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end
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rvs = [] of Hash(String, String)
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if video.info.has_key?("rvs")
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video.info["rvs"].split(",").each do |rv|
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rvs << HTTP::Params.parse(rv).to_h
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end
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end
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rvs.each do |rv|
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if rv.has_key?("id") && !PG_DB.query_one?("SELECT EXISTS (SELECT true FROM videos WHERE id = $1)", rv["id"], as: Bool)
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ids.delete(id)
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ids << rv["id"]
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if ids.size == 150
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ids.shift
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end
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end
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end
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youtube_pool << client
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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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spawn do
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if CONFIG.dl_api_key
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DetectLanguage.configure do |config|
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config.api_key = CONFIG.dl_api_key.not_nil!
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end
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filter = true
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else
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filter = false
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end
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loop do
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top = rank_videos(PG_DB, 40, youtube_pool, filter)
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if top.size > 0
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args = arg_array(top)
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else
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next
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end
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videos = [] of Video
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PG_DB.query("SELECT * FROM videos d INNER JOIN (VALUES #{args}) v(id) USING (id)", top) do |rs|
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rs.each do
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video = rs.read(Video)
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videos << video
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end
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end
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top_videos = videos
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Fiber.yield
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end
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end
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get "/" do |env|
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templated "index"
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end
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get "/watch" do |env|
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if env.params.query["v"]?
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id = env.params.query["v"]
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else
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env.redirect "/"
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next
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end
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listen = false
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if env.params.query["listen"]? && env.params.query["listen"] == "true"
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listen = true
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env.params.query.delete_all("listen")
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end
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yt_client = get_client(youtube_pool)
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begin
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video = get_video(id, yt_client, PG_DB)
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rescue ex
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error_message = ex.message
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next templated "error"
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ensure
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youtube_pool << yt_client
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end
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fmt_stream = [] of HTTP::Params
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video.info["url_encoded_fmt_stream_map"].split(",") do |string|
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if !string.empty?
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fmt_stream << HTTP::Params.parse(string)
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end
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end
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adaptive_fmts = [] of HTTP::Params
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if video.info.has_key?("adaptive_fmts")
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video.info["adaptive_fmts"].split(",") do |string|
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adaptive_fmts << HTTP::Params.parse(string)
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end
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end
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signature = false
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if adaptive_fmts[0]? && adaptive_fmts[0]["s"]?
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signature = true
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end
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if signature
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adaptive_fmts.each do |fmt|
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"])
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end
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fmt_stream.each do |fmt|
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"])
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end
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end
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fmt_stream = fmt_stream.uniq { |s| s["quality"] }
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video_streams = adaptive_fmts.compact_map { |s| s["type"].starts_with?("video") ? s : nil }
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video_streams = video_streams.uniq { |s| s["size"] }
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audio_streams = adaptive_fmts.compact_map { |s| s["type"].starts_with?("audio") ? s : nil }
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audio_streams.sort_by! { |s| s["bitrate"].to_i }.reverse!
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audio_streams.each do |fmt|
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fmt["bitrate"] = (fmt["bitrate"].to_f64/1000).to_i.to_s
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end
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rvs = [] of Hash(String, String)
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if video.info.has_key?("rvs")
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video.info["rvs"].split(",").each do |rv|
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rvs << HTTP::Params.parse(rv).to_h
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end
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end
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player_response = JSON.parse(video.info["player_response"])
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rating = video.info["avg_rating"].to_f64
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engagement = ((video.dislikes.to_f + video.likes.to_f)/video.views * 100)
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if video.likes > 0 || video.dislikes > 0
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calculated_rating = (video.likes.to_f/(video.likes.to_f + video.dislikes.to_f) * 4 + 1)
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else
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calculated_rating = 0.0
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end
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reddit_client = make_client(REDDIT_URL)
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headers = HTTP::Headers{"User-Agent" => "web:invidio.us:v0.1.0 (by /u/omarroth)"}
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begin
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reddit_comments, reddit_thread = get_reddit_comments(id, reddit_client, headers)
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reddit_html = template_comments(reddit_comments)
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reddit_html = add_alt_links(reddit_html)
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rescue ex
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reddit_thread = nil
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reddit_html = ""
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end
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video.description = fill_links(video.description, "https", "www.youtube.com")
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video.description = add_alt_links(video.description)
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thumbnail = player_response["videoDetails"]["thumbnail"]["thumbnails"][-1]["url"]?
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templated "watch"
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end
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get "/search" do |env|
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if env.params.query["q"]?
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query = env.params.query["q"]
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else
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env.redirect "/"
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next
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end
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page = env.params.query["page"]?.try &.to_i
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page ||= 1
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client = get_client(youtube_pool)
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html = client.get("/results?q=#{URI.escape(query)}&page=#{page}&sp=EgIQAVAU").body
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html = XML.parse_html(html)
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youtube_pool << client
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videos = Array(Hash(String, String)).new
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html.xpath_nodes(%q(//ol[@class="item-section"]/li)).each do |item|
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root = item.xpath_node(%q(div[contains(@class,"yt-lockup-video")]/div))
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if root
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video = {} of String => String
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link = root.xpath_node(%q(div[contains(@class,"yt-lockup-thumbnail")]/a/@href))
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if link
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video["link"] = link.content
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else
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video["link"] = "#"
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end
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title = root.xpath_node(%q(div[@class="yt-lockup-content"]/h3/a))
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if title
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video["title"] = title.content
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else
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video["title"] = "Something went wrong"
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end
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thumbnail = root.xpath_node(%q(div[contains(@class,"yt-lockup-thumbnail")]/a/div/span/img/@src))
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if thumbnail && !thumbnail.content.ends_with?(".gif")
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video["thumbnail"] = thumbnail.content
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else
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thumbnail = root.xpath_node(%q(div[contains(@class,"yt-lockup-thumbnail")]/a/div/span/img/@data-thumb))
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if thumbnail
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video["thumbnail"] = thumbnail.content
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else
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video["thumbnail"] = "https://dummyimage.com/246x138"
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end
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end
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author = root.xpath_node(%q(div[@class="yt-lockup-content"]/div/a))
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if author
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video["author"] = author.content
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video["author_url"] = author["href"]
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else
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video["author"] = ""
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video["author_url"] = ""
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end
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videos << video
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end
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end
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templated "search"
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end
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get "/login" do |env|
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templated "login"
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end
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# See https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/youtube.py#L79
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post "/login" do |env|
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email = env.params.body["email"]?
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password = env.params.body["password"]?
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remember = env.params.body["remember"]? || "false"
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begin
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client = make_client(LOGIN_URL)
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headers = HTTP::Headers.new
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login_page = client.get("/ServiceLogin")
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headers = login_page.cookies.add_request_headers(headers)
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login_page = XML.parse_html(login_page.body)
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inputs = {} of String => String
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login_page.xpath_nodes(%q(//input[@type="submit"])).each do |node|
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name = node["id"]? || node["name"]?
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name ||= ""
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value = node["value"]?
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value ||= ""
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if name != "" && value != ""
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inputs[name] = value
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end
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end
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login_page.xpath_nodes(%q(//input[@type="hidden"])).each do |node|
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name = node["id"]? || node["name"]?
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name ||= ""
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value = node["value"]?
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value ||= ""
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if name != "" && value != ""
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inputs[name] = value
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end
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end
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lookup_req = %(["#{email}","#{inputs["session-state"]}",[],null,"US",null,null,2,false,true,[null,null,[2,1,null,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",null,[],4,[]],1,[null,null,[]],null,null,null,true],"#{email}"])
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headers["Content-Type"] = "application/x-www-form-urlencoded;charset=utf-8"
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headers["Google-Accounts-XSRF"] = "1"
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lookup_results = client.post("/_/signin/sl/lookup", headers, login_req(inputs, lookup_req))
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headers = lookup_results.cookies.add_request_headers(headers)
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lookup_results = lookup_results.body
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lookup_results = lookup_results[5..-1]
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lookup_results = JSON.parse(lookup_results)
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user_hash = lookup_results[0][2]
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challenge_req = %([#{user_hash},null,1,null,[1,null,null,null,[#{password},null,true]],[null,null,[2,1,null,1,"https://accounts.google.com/ServiceLogin?passive=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", null,[],4],1,[null,null,[]],null,null,null,true]])
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challenge_results = client.post("/_/signin/sl/challenge", headers, login_req(inputs, challenge_req))
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headers = challenge_results.cookies.add_request_headers(headers)
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challenge_results = challenge_results.body
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challenge_results = challenge_results[5..-1]
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challenge_results = JSON.parse(challenge_results)
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login_res = challenge_results[0][13][2].to_s
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login = client.get(login_res, headers)
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headers = login.cookies.add_request_headers(headers)
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login = client.get(login.headers["Location"], headers)
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headers = login.cookies.add_request_headers(headers)
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# We are now logged in
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env.redirect "/"
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rescue ex
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error_message = "Login failed"
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next templated "error"
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end
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end
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get "/redirect" do |env|
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if env.params.query["q"]?
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env.redirect env.params.query["q"]
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else
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env.redirect "/"
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end
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end
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# Return dash manifest for the given video ID
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get "/api/manifest/dash/id/:id" do |env|
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env.response.headers.add("Access-Control-Allow-Origin", "*")
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env.response.content_type = "application/dash+xml"
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id = env.params.url["id"]
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yt_client = get_client(youtube_pool)
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begin
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video = get_video(id, yt_client, PG_DB)
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rescue ex
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halt env, status_code: 403
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ensure
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youtube_pool << yt_client
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end
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adaptive_fmts = [] of HTTP::Params
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if video.info.has_key?("adaptive_fmts")
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video.info["adaptive_fmts"].split(",") do |string|
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adaptive_fmts << HTTP::Params.parse(string)
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end
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else
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halt env, status_code: 403
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end
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signature = false
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if adaptive_fmts[0]? && adaptive_fmts[0]["s"]?
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signature = true
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end
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if signature
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adaptive_fmts.each do |fmt|
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fmt["url"] += "&signature=" + decrypt_signature(fmt["s"])
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end
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end
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video_streams = adaptive_fmts.compact_map { |s| s["type"].starts_with?("video/mp4") ? s : nil }
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audio_streams = adaptive_fmts.compact_map { |s| s["type"].starts_with?("audio/mp4") ? s : nil }
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audio_streams.sort_by! { |s| s["bitrate"].to_i }.reverse!
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audio_streams.each do |fmt|
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fmt["bitrate"] = (fmt["bitrate"].to_f64/1000).to_i.to_s
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end
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manifest = XML.build(indent: " ", encoding: "UTF-8") do |xml|
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xml.element("MPD", "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance", "xsi:schemaLocation": "urn:mpeg:DASH:schema:MPD:2011 DASH-MPD.xsd",
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xmlns: "urn:mpeg:dash:schema:mpd:2011", profiles: "urn:mpeg:dash:profile:isoff-main:2011",
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mediaPresentationDuration: "PT#{video.info["length_seconds"]}S", minBufferTime: "PT2S", type: "static") do
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xml.element("Period") do
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xml.element("AdaptationSet", id: 0, mimeType: "audio/mp4", subsegmentAlignment: true) do
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xml.element("Role", schemeIdUri: "urn:mpeg:DASH:role:2011", value: "main")
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audio_streams.each do |fmt|
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mimetype, codecs = fmt["type"].split(";")
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codecs = codecs[9..-2]
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fmt_type = mimetype.split("/")[0]
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bandwidth = fmt["bitrate"]
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itag = fmt["itag"]
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url = fmt["url"]
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xml.element("Representation", id: fmt["itag"], codecs: codecs, bandwidth: bandwidth) do
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xml.element("BaseURL") { xml.text url }
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xml.element("SegmentBase", indexRange: fmt["init"]) do
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xml.element("Initialization", range: fmt["index"])
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end
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end
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end
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end
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xml.element("AdaptationSet", id: 1, mimeType: "video/mp4", subsegmentAlignment: true) do
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xml.element("Role", schemeIdUri: "urn:mpeg:DASH:role:2011", value: "main")
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video_streams.each do |fmt|
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mimetype, codecs = fmt["type"].split(";")
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codecs = codecs[9..-2]
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fmt_type = mimetype.split("/")[0]
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bandwidth = fmt["bitrate"]
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itag = fmt["itag"]
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url = fmt["url"]
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height, width = fmt["size"].split("x")
|
|
|
|
xml.element("Representation", id: itag, codecs: codecs, width: width, height: height, bandwidth: bandwidth, frameRate: fmt["fps"]) do
|
|
xml.element("BaseURL") { xml.text url }
|
|
xml.element("SegmentBase", indexRange: fmt["init"]) do
|
|
xml.element("Initialization", range: fmt["index"])
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
manifest = manifest.gsub(%(<?xml version="1.0" encoding="UTF-8U"?>), %(<?xml version="1.0" encoding="UTF-8"?>))
|
|
manifest = manifest.gsub(%(<?xml version="1.0" encoding="UTF-8V"?>), %(<?xml version="1.0" encoding="UTF-8"?>))
|
|
manifest
|
|
end
|
|
|
|
error 404 do |env|
|
|
error_message = "404 Page not found"
|
|
templated "error"
|
|
end
|
|
|
|
error 500 do |env|
|
|
error_message = "500 Server error"
|
|
templated "error"
|
|
end
|
|
|
|
# Add redirect if SSL is enabled
|
|
if Kemal.config.ssl
|
|
spawn do
|
|
server = HTTP::Server.new("0.0.0.0", 80) do |context|
|
|
redirect_url = "https://#{context.request.host}#{context.request.path}"
|
|
if context.request.query
|
|
redirect_url += "?#{context.request.query}"
|
|
end
|
|
context.response.headers.add("Location", redirect_url)
|
|
context.response.status_code = 301
|
|
end
|
|
|
|
server.listen
|
|
end
|
|
|
|
before_all do |env|
|
|
env.response.headers.add("Strict-Transport-Security", "max-age=31536000; includeSubDomains; preload")
|
|
end
|
|
end
|
|
|
|
static_headers do |response, filepath, filestat|
|
|
response.headers.add("Cache-Control", "max-age=86400")
|
|
end
|
|
|
|
public_folder "assets"
|
|
|
|
Kemal.run
|