# "Invidious" (which is an alternative front-end to YouTube)
# Copyright (C) 2019 Omar Roth
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see .
require "digest/md5"
require "file_utils"
require "kemal"
require "openssl/hmac"
require "option_parser"
require "pg"
require "sqlite3"
require "xml"
require "yaml"
require "compress/zip"
require "protodec/utils"
require "./invidious/helpers/*"
require "./invidious/*"
require "./invidious/routes/**"
require "./invidious/jobs/**"
CONFIG = Config.load
HMAC_KEY = CONFIG.hmac_key || Random::Secure.hex(32)
PG_DB = DB.open CONFIG.database_url
ARCHIVE_URL = URI.parse("https://archive.org")
LOGIN_URL = URI.parse("https://accounts.google.com")
PUBSUB_URL = URI.parse("https://pubsubhubbub.appspot.com")
REDDIT_URL = URI.parse("https://www.reddit.com")
TEXTCAPTCHA_URL = URI.parse("https://textcaptcha.com")
YT_URL = URI.parse("https://www.youtube.com")
HOST_URL = make_host_url(Kemal.config)
CHARS_SAFE = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"
TEST_IDS = {"AgbeGFYluEA", "BaW_jenozKc", "a9LDPn-MO4I", "ddFvjfvPnqk", "iqKdEhx-dD4"}
MAX_ITEMS_PER_PAGE = 1500
REQUEST_HEADERS_WHITELIST = {"accept", "accept-encoding", "cache-control", "content-length", "if-none-match", "range"}
RESPONSE_HEADERS_BLACKLIST = {"access-control-allow-origin", "alt-svc", "server"}
HTTP_CHUNK_SIZE = 10485760 # ~10MB
CURRENT_BRANCH = {{ "#{`git branch | sed -n '/* /s///p'`.strip}" }}
CURRENT_COMMIT = {{ "#{`git rev-list HEAD --max-count=1 --abbrev-commit`.strip}" }}
CURRENT_VERSION = {{ "#{`git log -1 --format=%ci | awk '{print $1}' | sed s/-/./g`.strip}" }}
# This is used to determine the `?v=` on the end of file URLs (for cache busting). We
# only need to expire modified assets, so we can use this to find the last commit that changes
# any assets
ASSET_COMMIT = {{ "#{`git rev-list HEAD --max-count=1 --abbrev-commit -- assets`.strip}" }}
SOFTWARE = {
"name" => "invidious",
"version" => "#{CURRENT_VERSION}-#{CURRENT_COMMIT}",
"branch" => "#{CURRENT_BRANCH}",
}
YT_POOL = YoutubeConnectionPool.new(YT_URL, capacity: CONFIG.pool_size, timeout: 2.0, use_quic: CONFIG.use_quic)
# CLI
Kemal.config.extra_options do |parser|
parser.banner = "Usage: invidious [arguments]"
parser.on("-c THREADS", "--channel-threads=THREADS", "Number of threads for refreshing channels (default: #{CONFIG.channel_threads})") do |number|
begin
CONFIG.channel_threads = number.to_i
rescue ex
puts "THREADS must be integer"
exit
end
end
parser.on("-f THREADS", "--feed-threads=THREADS", "Number of threads for refreshing feeds (default: #{CONFIG.feed_threads})") do |number|
begin
CONFIG.feed_threads = number.to_i
rescue ex
puts "THREADS must be integer"
exit
end
end
parser.on("-o OUTPUT", "--output=OUTPUT", "Redirect output (default: #{CONFIG.output})") do |output|
CONFIG.output = output
end
parser.on("-l LEVEL", "--log-level=LEVEL", "Log level, one of #{LogLevel.values} (default: #{CONFIG.log_level})") do |log_level|
CONFIG.log_level = LogLevel.parse(log_level)
end
parser.on("-v", "--version", "Print version") do
puts SOFTWARE.to_pretty_json
exit
end
end
Kemal::CLI.new ARGV
if CONFIG.output.upcase != "STDOUT"
FileUtils.mkdir_p(File.dirname(CONFIG.output))
end
OUTPUT = CONFIG.output.upcase == "STDOUT" ? STDOUT : File.open(CONFIG.output, mode: "a")
LOGGER = Invidious::LogHandler.new(OUTPUT, CONFIG.log_level)
# Check table integrity
if CONFIG.check_tables
check_enum(PG_DB, "privacy", PlaylistPrivacy)
check_table(PG_DB, "channels", InvidiousChannel)
check_table(PG_DB, "channel_videos", ChannelVideo)
check_table(PG_DB, "playlists", InvidiousPlaylist)
check_table(PG_DB, "playlist_videos", PlaylistVideo)
check_table(PG_DB, "nonces", Nonce)
check_table(PG_DB, "session_ids", SessionId)
check_table(PG_DB, "users", User)
check_table(PG_DB, "videos", Video)
if CONFIG.cache_annotations
check_table(PG_DB, "annotations", Annotation)
end
end
# Start jobs
if CONFIG.channel_threads > 0
Invidious::Jobs.register Invidious::Jobs::RefreshChannelsJob.new(PG_DB)
end
if CONFIG.feed_threads > 0
Invidious::Jobs.register Invidious::Jobs::RefreshFeedsJob.new(PG_DB)
end
DECRYPT_FUNCTION = DecryptFunction.new(CONFIG.decrypt_polling)
if CONFIG.decrypt_polling
Invidious::Jobs.register Invidious::Jobs::UpdateDecryptFunctionJob.new
end
if CONFIG.statistics_enabled
Invidious::Jobs.register Invidious::Jobs::StatisticsRefreshJob.new(PG_DB, SOFTWARE)
end
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)
Invidious::Jobs.register Invidious::Jobs::SubscribeToFeedsJob.new(PG_DB, HMAC_KEY)
end
if CONFIG.popular_enabled
Invidious::Jobs.register Invidious::Jobs::PullPopularVideosJob.new(PG_DB)
end
if CONFIG.captcha_key
Invidious::Jobs.register Invidious::Jobs::BypassCaptchaJob.new
end
connection_channel = Channel({Bool, Channel(PQ::Notification)}).new(32)
Invidious::Jobs.register Invidious::Jobs::NotificationJob.new(connection_channel, CONFIG.database_url)
Invidious::Jobs.start_all
def popular_videos
Invidious::Jobs::PullPopularVideosJob::POPULAR_VIDEOS.get
end
before_all do |env|
preferences = begin
Preferences.from_json(env.request.cookies["PREFS"]?.try &.value || "{}")
rescue
Preferences.from_json("{}")
end
env.set "preferences", preferences
env.response.headers["X-XSS-Protection"] = "1; mode=block"
env.response.headers["X-Content-Type-Options"] = "nosniff"
extra_media_csp = ""
if CONFIG.disabled?("local") || !preferences.local
extra_media_csp += " https://*.googlevideo.com:443"
extra_media_csp += " https://*.youtube.com:443"
end
# TODO: Remove style-src's 'unsafe-inline', requires to remove all inline styles (, style=" [..] ")
env.response.headers["Content-Security-Policy"] = "default-src 'none'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self' data:; connect-src 'self'; manifest-src 'self'; media-src 'self' blob:#{extra_media_csp}; child-src blob:"
env.response.headers["Referrer-Policy"] = "same-origin"
if (Kemal.config.ssl || CONFIG.https_only) && CONFIG.hsts
env.response.headers["Strict-Transport-Security"] = "max-age=31536000; includeSubDomains; preload"
end
next if {
"/sb/",
"/vi/",
"/s_p/",
"/yts/",
"/ggpht/",
"/api/manifest/",
"/videoplayback",
"/latest_version",
}.any? { |r| env.request.resource.starts_with? r }
if env.request.cookies.has_key? "SID"
sid = env.request.cookies["SID"].value
if sid.starts_with? "v1:"
raise "Cannot use token as SID"
end
# Invidious users only have SID
if !env.request.cookies.has_key? "SSID"
if email = PG_DB.query_one?("SELECT email FROM session_ids WHERE id = $1", sid, as: String)
user = PG_DB.query_one("SELECT * FROM users WHERE email = $1", email, as: User)
csrf_token = generate_response(sid, {
":authorize_token",
":playlist_ajax",
":signout",
":subscription_ajax",
":token_ajax",
":watch_ajax",
}, HMAC_KEY, PG_DB, 1.week)
preferences = user.preferences
env.set "preferences", preferences
env.set "sid", sid
env.set "csrf_token", csrf_token
env.set "user", user
end
else
headers = HTTP::Headers.new
headers["Cookie"] = env.request.headers["Cookie"]
begin
user, sid = get_user(sid, headers, PG_DB, false)
csrf_token = generate_response(sid, {
":authorize_token",
":playlist_ajax",
":signout",
":subscription_ajax",
":token_ajax",
":watch_ajax",
}, HMAC_KEY, PG_DB, 1.week)
preferences = user.preferences
env.set "preferences", preferences
env.set "sid", sid
env.set "csrf_token", csrf_token
env.set "user", user
rescue ex
end
end
end
dark_mode = convert_theme(env.params.query["dark_mode"]?) || preferences.dark_mode.to_s
thin_mode = env.params.query["thin_mode"]? || preferences.thin_mode.to_s
thin_mode = thin_mode == "true"
locale = env.params.query["hl"]? || preferences.locale
preferences.dark_mode = dark_mode
preferences.thin_mode = thin_mode
preferences.locale = locale
env.set "preferences", preferences
current_page = env.request.path
if env.request.query
query = HTTP::Params.parse(env.request.query.not_nil!)
if query["referer"]?
query["referer"] = get_referer(env, "/")
end
current_page += "?#{query}"
end
env.set "current_page", URI.encode_www_form(current_page)
end
Invidious::Routing.get "/", Invidious::Routes::Misc, :home
Invidious::Routing.get "/privacy", Invidious::Routes::Misc, :privacy
Invidious::Routing.get "/licenses", Invidious::Routes::Misc, :licenses
Invidious::Routing.get "/watch", Invidious::Routes::Watch, :handle
Invidious::Routing.get "/watch/:id", Invidious::Routes::Watch, :redirect
Invidious::Routing.get "/shorts/:id", Invidious::Routes::Watch, :redirect
Invidious::Routing.get "/w/:id", Invidious::Routes::Watch, :redirect
Invidious::Routing.get "/v/:id", Invidious::Routes::Watch, :redirect
Invidious::Routing.get "/e/:id", Invidious::Routes::Watch, :redirect
Invidious::Routing.get "/embed/", Invidious::Routes::Embed, :redirect
Invidious::Routing.get "/embed/:id", Invidious::Routes::Embed, :show
Invidious::Routing.get "/view_all_playlists", Invidious::Routes::Playlists, :index
Invidious::Routing.get "/create_playlist", Invidious::Routes::Playlists, :new
Invidious::Routing.post "/create_playlist", Invidious::Routes::Playlists, :create
Invidious::Routing.get "/subscribe_playlist", Invidious::Routes::Playlists, :subscribe
Invidious::Routing.get "/delete_playlist", Invidious::Routes::Playlists, :delete_page
Invidious::Routing.post "/delete_playlist", Invidious::Routes::Playlists, :delete
Invidious::Routing.get "/edit_playlist", Invidious::Routes::Playlists, :edit
Invidious::Routing.post "/edit_playlist", Invidious::Routes::Playlists, :update
Invidious::Routing.get "/add_playlist_items", Invidious::Routes::Playlists, :add_playlist_items_page
Invidious::Routing.post "/playlist_ajax", Invidious::Routes::Playlists, :playlist_ajax
Invidious::Routing.get "/playlist", Invidious::Routes::Playlists, :show
Invidious::Routing.get "/mix", Invidious::Routes::Playlists, :mix
Invidious::Routing.get "/opensearch.xml", Invidious::Routes::Search, :opensearch
Invidious::Routing.get "/results", Invidious::Routes::Search, :results
Invidious::Routing.get "/search", Invidious::Routes::Search, :search
Invidious::Routing.get "/login", Invidious::Routes::Login, :login_page
Invidious::Routing.post "/login", Invidious::Routes::Login, :login
Invidious::Routing.post "/signout", Invidious::Routes::Login, :signout
Invidious::Routing.get "/preferences", Invidious::Routes::PreferencesRoute, :show
Invidious::Routing.post "/preferences", Invidious::Routes::PreferencesRoute, :update
Invidious::Routing.get "/toggle_theme", Invidious::Routes::PreferencesRoute, :toggle_theme
# Users
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
next error_json(403, "No such user")
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
if redirect
next error_template(400, ex)
else
next error_json(400, ex)
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 = array_append(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)
else
next error_json(400, "Unsupported action #{action}")
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
next error_json(403, "No such user")
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_client_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)
if match = html.body.match(/'XSRF_TOKEN': "(?[^"]+)"/)
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
next error_json(403, "No such user")
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
next error_template(400, ex)
else
next error_json(400, ex)
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)
else
next error_json(400, "Unsupported action #{action}")
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
if format == "json"
env.response.content_type = "application/json"
env.response.headers["content-disposition"] = "attachment"
playlists = PG_DB.query_all("SELECT * FROM playlists WHERE author = $1 AND id LIKE 'IV%' ORDER BY created", user.email, as: InvidiousPlaylist)
next JSON.build do |json|
json.object do
json.field "subscriptions", user.subscriptions
json.field "watch_history", user.watched
json.field "preferences", user.preferences
json.field "playlists" do
json.array do
playlists.each do |playlist|
json.object do
json.field "title", playlist.title
json.field "description", html_to_content(playlist.description_html)
json.field "privacy", playlist.privacy.to_s
json.field "videos" do
json.array do
PG_DB.query_all("SELECT id FROM playlist_videos WHERE plid = $1 ORDER BY array_position($2, index) LIMIT 500", playlist.id, playlist.index, as: String).each do |video_id|
json.string video_id
end
end
end
end
end
end
end
end
end
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(%(\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)
# TODO: Find a way to prevent browser timeout
HTTP::FormData.parse(env.request) do |part|
body = part.body.gets_to_end
next if body.empty?
# TODO: Unify into single import based on content-type
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)
PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", user.preferences.to_json, user.email)
end
if playlists = body["playlists"]?.try &.as_a?
playlists.each do |item|
title = item["title"]?.try &.as_s?.try &.delete("<>")
description = item["description"]?.try &.as_s?.try &.delete("\r")
privacy = item["privacy"]?.try &.as_s?.try { |privacy| PlaylistPrivacy.parse? privacy }
next if !title
next if !description
next if !privacy
playlist = create_playlist(PG_DB, title, privacy, user)
PG_DB.exec("UPDATE playlists SET description = $1 WHERE id = $2", description, playlist.id)
videos = item["videos"]?.try &.as_a?.try &.each_with_index do |video_id, idx|
raise InfoException.new("Playlist cannot have more than 500 videos") if idx > 500
video_id = video_id.try &.as_s?
next if !video_id
begin
video = get_video(video_id, PG_DB)
rescue ex
next
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 = cardinality(index) + 1, updated = $2 WHERE id = $3", playlist_video.index, Time.utc, playlist.id)
end
end
end
when "import_youtube"
if body[0..4] == "[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\/(?UC[a-zA-Z0-9_-]{22})/)
next match["channel"]
elsif match = channel["url"].as_s.match(/\/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"
Compress::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
else nil # Ignore
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
next error_template(400, "Cannot change password for Google accounts")
end
begin
validate_request(token, sid, env.request, HMAC_KEY, PG_DB, locale)
rescue ex
next error_template(400, ex)
end
password = env.params.body["password"]?
if !password
next error_template(401, "Password is a required field")
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
next error_template(400, "New passwords must match")
end
new_password = new_passwords.uniq[0]
if new_password.empty?
next error_template(401, "Password cannot be empty")
end
if new_password.bytesize > 55
next error_template(400, "Password cannot be longer than 55 characters")
end
if !Crypto::Bcrypt::Password.new(user.password.not_nil!).verify(password.byte_slice(0, 55))
next error_template(401, "Incorrect password")
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
next error_template(400, ex)
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
next error_template(400, ex)
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
next error_template(400, ex)
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
next error_json(403, "No such user")
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
next error_template(400, ex)
else
next error_json(400, ex)
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)
else
next error_json(400, "Unsupported action #{action}")
end
if redirect
env.redirect referer
else
env.response.content_type = "application/json"
"{}"
end
end
# Feeds
get "/feed/playlists" do |env|
env.redirect "/view_all_playlists"
end
get "/feed/top" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
message = translate(locale, "The Top feed has been removed from Invidious.")
templated "message"
end
get "/feed/popular" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
if CONFIG.popular_enabled
templated "popular"
else
message = translate(locale, "The Popular feed has been disabled by the administrator.")
templated "message"
end
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
next error_template(500, ex)
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
next error_atom(500, ex)
end
response = YT_POOL.client &.get("/feeds/videos.xml?channel_id=#{channel.ucid}")
rss = XML.parse_html(response.body)
videos = rss.xpath_nodes("//feed/entry").map 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
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
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("icon") { xml.text channel.author_thumbnail }
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(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)
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, 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"]? || "")
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(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"
request_target = URI.parse(node[attribute.name]).request_target
query_string_opt = request_target.starts_with?("/watch?v=") ? "&#{params}" : ""
node[attribute.name] = "#{HOST_URL}#{request_target}#{query_string_opt}"
else nil # Skip
end
end
end
document = document.to_xml(options: XML::SaveOptions::NO_DECL)
document.scan(/(?[^<]+)<\/uri>/).each do |match|
content = "#{HOST_URL}#{URI.parse(match["url"]).request_target}"
document = document.gsub(match[0], "#{content}")
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.error("/feed/webhook/#{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,
})
was_insert = PG_DB.query_one("INSERT INTO channel_videos VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)
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 returning (xmax=0) as was_insert", *video.to_tuple, as: Bool)
PG_DB.exec("UPDATE users SET notifications = array_append(notifications, $1),
feed_needs_update = true WHERE $2 = ANY(subscriptions)", video.id, video.ucid) if was_insert
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': "(?[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}")
html = XML.parse_html(response.body)
ucid = html.xpath_node(%q(//link[@rel="canonical"])).try &.["href"].split("/")[-1]
next env.redirect "/" if !ucid
env.redirect "/channel/#{ucid}"
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).request_target
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
next error_template(500, ex)
end
if channel.auto_generated
sort_options = {"last", "oldest", "newest"}
sort_by ||= "last"
items, continuation = fetch_channel_playlists(channel.ucid, channel.author, 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(&.is_a?(SearchPlaylist)).map(&.as(SearchPlaylist))
items.each { |item| item.author = "" }
else
sort_options = {"newest", "oldest", "popular"}
sort_by ||= "newest"
count, items = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by)
items.reject! &.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
next error_template(500, ex)
end
if channel.auto_generated
next env.redirect "/channel/#{channel.ucid}"
end
items, continuation = fetch_channel_playlists(channel.ucid, channel.author, 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
next error_template(500, ex)
end
if !channel.tabs.includes? "community"
next env.redirect "/channel/#{channel.ucid}"
end
begin
items = JSON.parse(fetch_channel_community(ucid, continuation, locale, "json", thin_mode))
rescue ex : InfoException
env.response.status_code = 500
error_message = ex.message
rescue ex
next error_template(500, ex)
end
env.set "search", "channel:#{channel.ucid} "
templated "community"
end
# API Endpoints
get "/api/v1/stats" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
if !CONFIG.statistics_enabled
next error_json(400, "Statistics are not enabled.")
end
Invidious::Jobs::StatisticsRefreshJob::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
env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id)
next error_json(302, "Video is unavailable", {"videoId" => ex.video_id})
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)
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|
url = storyboard[:url]
authority = /(i\d?).ytimg.com/.match(url).not_nil![1]?
url = url.gsub("$M", i).gsub(%r(https://i\d?.ytimg.com/sb/), "")
url = "#{HOST_URL}/sb/#{authority}/#{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] - 2},#{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
env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id)
next error_json(302, "Video is unavailable", {"videoId" => ex.video_id})
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}").request_target
# 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(//, "")
text = text.gsub(/<\/font>/, "")
if md = text.match(/(?.*) : (?.*)/)
text = "#{md["text"]}"
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"
action = env.params.query["action"]?
action ||= "action_get_comments"
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, action: action)
rescue ex
next error_json(500, ex)
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]?
next error_json(410, "YouTube has removed publicly available analytics.")
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")
location = make_client(ARCHIVE_URL, &.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
else # "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
env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id)
next error_json(302, "Video is unavailable", {"videoId" => ex.video_id})
rescue ex
next error_json(500, ex)
end
video.to_json(locale)
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
next error_json(500, ex)
end
videos = JSON.build do |json|
json.array do
trending.each do |video|
video.to_json(locale, 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"
if !CONFIG.popular_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
popular_videos.each do |video|
video.to_json(locale, 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"
env.response.status_code = 400
{"error" => "The Top feed has been removed from Invidious."}.to_json
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
env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id)
next error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id})
rescue ex
next error_json(500, ex)
end
page = 1
if channel.auto_generated
videos = [] of SearchVideo
count = 0
else
begin
count, videos = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by)
rescue ex
next error_json(500, ex)
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(/=s\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, 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
env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id)
next error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id})
rescue ex
next error_json(500, ex)
end
begin
count, videos = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by)
rescue ex
next error_json(500, ex)
end
JSON.build do |json|
json.array do
videos.each do |video|
video.to_json(locale, 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
next error_json(500, ex)
end
JSON.build do |json|
json.array do
videos.each do |video|
video.to_json(locale, 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 ||
env.params.query["sort_by"]?.try &.downcase ||
"last"
begin
channel = get_about_info(ucid, locale)
rescue ex : ChannelRedirect
env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id)
next error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id})
rescue ex
next error_json(500, ex)
end
items, continuation = fetch_channel_playlists(channel.ucid, channel.author, continuation, sort_by)
JSON.build do |json|
json.object do
json.field "playlists" do
json.array do
items.each do |item|
item.to_json(locale, json) if item.is_a?(SearchPlaylist)
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, format, thin_mode)
rescue ex
next error_json(500, ex)
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, 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(page, sort_by, date, content_type, duration, features)
rescue ex
next error_json(400, ex)
end
count, search_results = search(query, search_params, region).as(Tuple)
JSON.build do |json|
json.array do
search_results.each do |item|
item.to_json(locale, 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
headers = HTTP::Headers{":authority" => "suggestqueries.google.com"}
response = YT_POOL.client &.get("/complete/search?hl=en&gl=#{region}&client=youtube&ds=yt&q=#{URI.encode_www_form(query)}&callback=suggestCallback", headers).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
next error_json(500, ex)
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 : InfoException
next error_json(404, ex)
rescue ex
next error_json(404, "Playlist does not exist.")
end
user = env.get?("user").try &.as(User)
if !playlist || playlist.privacy.private? && playlist.author != user.try &.email
next error_json(404, "Playlist does not exist.")
end
response = playlist.to_json(offset, locale, 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
next error_json(500, ex)
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)
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, 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, 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 || "{}")
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, json)
end
end
end
json.field "videos" do
json.array do
videos.each do |video|
video.to_json(locale, 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, 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
next error_json(400, "Invalid title.")
end
privacy = env.params.json["privacy"]?.try { |privacy| PlaylistPrivacy.parse(privacy.as(String).downcase) }
if !privacy
next error_json(400, "Invalid privacy setting.")
end
if PG_DB.query_one("SELECT count(*) FROM playlists WHERE author = $1", user.email, as: Int64) >= 100
next error_json(400, "User cannot have more than 100 playlists.")
end
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?
next error_json(404, "Playlist does not exist.")
end
if playlist.author != user.email
next error_json(403, "Invalid user")
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|
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?
next error_json(404, "Playlist does not exist.")
end
if playlist.author != user.email
next error_json(403, "Invalid user")
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?
next error_json(404, "Playlist does not exist.")
end
if playlist.author != user.email
next error_json(403, "Invalid user")
end
if playlist.index.size >= 500
next error_json(400, "Playlist cannot have more than 500 videos")
end
video_id = env.params.json["videoId"].try &.as(String)
if !video_id
next error_json(403, "Invalid videoId")
end
begin
video = get_video(video_id, PG_DB)
rescue ex
next error_json(500, ex)
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 = cardinality(index) + 1, updated = $2 WHERE id = $3", playlist_video.index, Time.utc, plid)
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, index: playlist.index.size)
end
delete "/api/v1/auth/playlists/:plid/videos/:index" 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"]
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?
next error_json(404, "Playlist does not exist.")
end
if playlist.author != user.email
next error_json(403, "Invalid user")
end
if !playlist.index.includes? index
next error_json(404, "Playlist does not contain index")
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 = cardinality(index) - 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
next error_json(400, "Invalid or missing header 'Content-Type'")
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|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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
next error_json(400, "Cannot revoke session #{session}")
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.dash_manifest_url
manifest = YT_POOL.client &.get(URI.parse(dashmpd).request_target).body
manifest = manifest.gsub(/[^<]+<\/BaseURL>/) do |baseurl|
url = baseurl.lchop("")
url = url.rchop("")
if local
uri = URI.parse(url)
url = "#{uri.request_target}host/#{uri.host}/"
end
"#{url}"
end
next manifest
end
adaptive_fmts = video.adaptive_fmts
if local
adaptive_fmts.each do |fmt|
fmt["url"] = JSON::Any.new(URI.parse(fmt["url"].as_s).request_target)
end
end
audio_streams = video.audio_streams
video_streams = video.video_streams.sort_by { |stream| {stream["width"].as_i, stream["fps"].as_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["mimeType"].as_s.starts_with? mime_type }
next if mime_streams.empty?
xml.element("AdaptationSet", id: i, mimeType: mime_type, startWithSAP: 1, subsegmentAlignment: true) do
mime_streams.each do |fmt|
codecs = fmt["mimeType"].as_s.split("codecs=")[1].strip('"')
bandwidth = fmt["bitrate"].as_i
itag = fmt["itag"].as_i
url = fmt["url"].as_s
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["indexRange"]["start"]}-#{fmt["indexRange"]["end"]}") do
xml.element("Initialization", range: "#{fmt["initRange"]["start"]}-#{fmt["initRange"]["end"]}")
end
end
end
end
i += 1
end
potential_heights = {4320, 2160, 1440, 1080, 720, 480, 360, 240, 144}
{"video/mp4", "video/webm"}.each do |mime_type|
mime_streams = video_streams.select { |stream| stream["mimeType"].as_s.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["mimeType"].as_s.split("codecs=")[1].strip('"')
bandwidth = fmt["bitrate"].as_i
itag = fmt["itag"].as_i
url = fmt["url"].as_s
width = fmt["width"].as_i
height = fmt["height"].as_i
# Resolutions reported by YouTube player (may not accurately reflect source)
height = potential_heights.min_by { |i| (height - i).abs }
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["indexRange"]["start"]}-#{fmt["indexRange"]["end"]}") do
xml.element("Initialization", range: "#{fmt["initRange"]["start"]}-#{fmt["initRange"]["end"]}")
end
end
end
end
i += 1
end
end
end
end
end
get "/api/manifest/hls_variant/*" do |env|
response = YT_POOL.client &.get(env.request.path)
if response.status_code != 200
env.response.status_code = response.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", "*")
manifest = response.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|
response = YT_POOL.client &.get(env.request.path)
if response.status_code != 200
env.response.status_code = response.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", "*")
manifest = response.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(?\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.to_i
local = "true"
end
end
id ||= env.params.query["id"]?
itag ||= env.params.query["itag"]?.try &.to_i
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 = video.fmt_stream.find(nil) { |f| f["itag"].as_i == itag } || video.adaptive_fmts.find(nil) { |f| f["itag"].as_i == itag }
url = fmt.try &.["url"]?.try &.as_s
if !url
env.response.status_code = 404
next
end
url = URI.parse(url).request_target.not_nil! if local
url = "#{url}&title=#{title}" if title
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|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
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)
error = ""
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"] = "*"
new_host = "#{location.scheme}://#{location.host}"
if new_host != host
host = new_host
client.close
client = make_client(URI.parse(new_host), region)
end
url = "#{location.request_target}&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
error = ex.message
end
end
if response.status_code >= 400
env.response.status_code = response.status_code
env.response.content_type = "text/plain"
next error
end
if url.includes? "&file=seg.ts"
if CONFIG.disabled?("livestreams")
next error_template(403, "Administrator has disabled this endpoint.")
end
begin
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.request_target}&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")
next error_template(403, "Administrator has disabled this endpoint.")
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
# 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.request_target}&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.close
client = make_client(URI.parse(host), region)
end
end
chunk_start = chunk_end + 1
chunk_end += HTTP_CHUNK_SIZE
first_chunk = false
end
end
client.close
end
get "/ggpht/*" do |env|
url = env.request.path.lchop("/ggpht")
headers = HTTP::Headers{":authority" => "yt3.ggpht.com"}
REQUEST_HEADERS_WHITELIST.each do |header|
if env.request.headers[header]?
headers[header] = env.request.headers[header]
end
end
begin
YT_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
env.response.headers.delete("Transfer-Encoding")
break
end
proxy_file(response, env)
end
rescue ex
end
end
options "/sb/:authority/:id/:storyboard/:index" do |env|
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/:authority/:id/:storyboard/:index" do |env|
authority = env.params.url["authority"]
id = env.params.url["id"]
storyboard = env.params.url["storyboard"]
index = env.params.url["index"]
url = "/sb/#{id}/#{storyboard}/#{index}?#{env.params.query}"
headers = HTTP::Headers.new
headers[":authority"] = "#{authority}.ytimg.com"
REQUEST_HEADERS_WHITELIST.each do |header|
if env.request.headers[header]?
headers[header] = env.request.headers[header]
end
end
begin
YT_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["Connection"] = "close"
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"]
url = env.request.resource
headers = HTTP::Headers{":authority" => "i9.ytimg.com"}
REQUEST_HEADERS_WHITELIST.each do |header|
if env.request.headers[header]?
headers[header] = env.request.headers[header]
end
end
begin
YT_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 "/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"]
headers = HTTP::Headers{":authority" => "i.ytimg.com"}
if name == "maxres.jpg"
build_thumbnails(id).each do |thumb|
if YT_POOL.client &.head("/vi/#{id}/#{thumb[:url]}.jpg", headers).status_code == 200
name = thumb[:url] + ".jpg"
break
end
end
end
url = "/vi/#{id}/#{name}"
REQUEST_HEADERS_WHITELIST.each do |header|
if env.request.headers[header]?
headers[header] = env.request.headers[header]
end
end
begin
YT_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|
headers = HTTP::Headers{":authority" => "accounts.google.com"}
response = YT_POOL.client &.get(env.request.resource, headers)
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).request_target
next env.redirect url
end
env.response.status_code = response.status_code
end
error 404 do |env|
if md = env.request.path.match(/^\/(?([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 = LOCALES[env.get("preferences").as(Preferences).locale]?
error_template(500, ex)
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