# "Invidious" (which is an alternative front-end to YouTube)
# Copyright (C) 2018 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 "crypto/bcrypt/password"
require "detect_language"
require "kemal"
require "openssl/hmac"
require "option_parser"
require "pg"
require "xml"
require "yaml"
require "zip"
require "./invidious/helpers/*"
require "./invidious/*"
CONFIG = Config.from_yaml(File.read("config/config.yml"))
HMAC_KEY = CONFIG.hmac_key || Random::Secure.random_bytes(32)
crawl_threads = CONFIG.crawl_threads
channel_threads = CONFIG.channel_threads
feed_threads = CONFIG.feed_threads
video_threads = CONFIG.video_threads
Kemal.config.extra_options do |parser|
parser.banner = "Usage: invidious [arguments]"
parser.on("-t THREADS", "--crawl-threads=THREADS", "Number of threads for crawling (default: #{crawl_threads})") do |number|
begin
crawl_threads = number.to_i
rescue ex
puts "THREADS must be integer"
exit
end
end
parser.on("-c THREADS", "--channel-threads=THREADS", "Number of threads for refreshing channels (default: #{channel_threads})") do |number|
begin
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: #{feed_threads})") do |number|
begin
feed_threads = number.to_i
rescue ex
puts "THREADS must be integer"
exit
end
end
parser.on("-v THREADS", "--video-threads=THREADS", "Number of threads for refreshing videos (default: #{video_threads})") do |number|
begin
video_threads = number.to_i
rescue ex
puts "THREADS must be integer"
exit
end
end
end
Kemal::CLI.new
PG_URL = URI.new(
scheme: "postgres",
user: CONFIG.db[:user],
password: CONFIG.db[:password],
host: CONFIG.db[:host],
port: CONFIG.db[:port],
path: CONFIG.db[:dbname],
)
PG_DB = DB.open PG_URL
YT_URL = URI.parse("https://www.youtube.com")
REDDIT_URL = URI.parse("https://www.reddit.com")
LOGIN_URL = URI.parse("https://accounts.google.com")
crawl_threads.times do
spawn do
crawl_videos(PG_DB)
end
end
refresh_channels(PG_DB, channel_threads, CONFIG.full_refresh)
refresh_feeds(PG_DB, feed_threads)
video_threads.times do |i|
spawn do
refresh_videos(PG_DB)
end
end
top_videos = [] of Video
spawn do
pull_top_videos(CONFIG, PG_DB) do |videos|
top_videos = videos
end
end
decrypt_function = [] of {name: String, value: Int32}
spawn do
update_decrypt_function do |function|
decrypt_function = function
end
end
proxies = {} of String => Array({ip: String, port: Int32})
if CONFIG.geo_bypass
spawn do
find_working_proxies(BYPASS_REGIONS) do |region, list|
if !list.empty?
proxies[region] = list
end
end
end
end
before_all do |env|
env.response.headers["X-XSS-Protection"] = "1; mode=block;"
env.response.headers["X-Content-Type-Options"] = "nosniff"
if env.request.cookies.has_key? "SID"
headers = HTTP::Headers.new
headers["Cookie"] = env.request.headers["Cookie"]
sid = env.request.cookies["SID"].value
# Invidious users only have SID
if !env.request.cookies.has_key? "SSID"
user = PG_DB.query_one?("SELECT * FROM users WHERE $1 = ANY(id)", sid, as: User)
if user
env.set "user", user
env.set "sid", sid
end
else
begin
client = make_client(YT_URL)
user = get_user(sid, client, headers, PG_DB, false)
env.set "user", user
env.set "sid", sid
rescue ex
end
end
end
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.escape(current_page)
end
get "/" do |env|
user = env.get? "user"
if user
user = user.as(User)
if user.preferences.redirect_feed
env.redirect "/feed/subscriptions"
end
end
templated "index"
end
# Videos
get "/:id" do |env|
id = env.params.url["id"]
if md = id.match(/[a-zA-Z0-9_-]{11}/)
params = [] of String
env.params.query.each do |k, v|
params << "#{k}=#{v}"
end
params = params.join("&")
url = "/watch?v=#{id}"
if !params.empty?
url += "&#{params}"
end
env.redirect url
else
env.response.status_code = 404
end
end
get "/watch" do |env|
if env.params.query.to_s.includes?("%20") || env.params.query.to_s.includes?("+")
url = "/watch?" + env.params.query.to_s.gsub("%20", "").delete("+")
next env.redirect url
end
if env.params.query["v"]?
id = env.params.query["v"]
if env.params.query["v"].empty?
error_message = "Invalid parameters."
next templated "error"
end
if id.size > 11
url = "/watch?v=#{id[0, 11]}"
env.params.query.delete_all("v")
if env.params.query.size > 0
url += "&#{env.params.query}"
end
next env.redirect url
end
else
next env.redirect "/"
end
plid = env.params.query["list"]?
nojs = env.params.query["nojs"]?
nojs ||= "0"
nojs = nojs == "1"
user = env.get? "user"
if user
user = user.as(User)
if !user.watched.includes? id
PG_DB.exec("UPDATE users SET watched = watched || $1 WHERE id = $2", [id], user.id)
end
preferences = user.preferences
subscriptions = user.subscriptions
end
subscriptions ||= [] of String
params = process_video_params(env.params.query, preferences)
env.params.query.delete_all("listen")
begin
video = get_video(id, PG_DB, proxies)
rescue ex : VideoRedirect
next env.redirect "/watch?v=#{ex.message}"
rescue ex
error_message = ex.message
STDOUT << id << " : " << ex.message << "\n"
next templated "error"
end
if nojs
if preferences
source = preferences.comments[0]
if source.empty?
source = preferences.comments[1]
end
if source == "youtube"
begin
comments = fetch_youtube_comments(id, "", proxies, "html")
comments = JSON.parse(comments)
comment_html = template_youtube_comments(comments)
rescue ex
if preferences.comments[1] == "reddit"
comments, reddit_thread = fetch_reddit_comments(id)
comment_html = template_reddit_comments(comments)
comment_html = fill_links(comment_html, "https", "www.reddit.com")
comment_html = replace_links(comment_html)
end
end
elsif source == "reddit"
begin
comments, reddit_thread = fetch_reddit_comments(id)
comment_html = template_reddit_comments(comments)
comment_html = fill_links(comment_html, "https", "www.reddit.com")
comment_html = replace_links(comment_html)
rescue ex
if preferences.comments[1] == "youtube"
comments = fetch_youtube_comments(id, "", proxies, "html")
comments = JSON.parse(comments)
comment_html = template_youtube_comments(comments)
end
end
end
else
comments = fetch_youtube_comments(id, "", proxies, "html")
comments = JSON.parse(comments)
comment_html = template_youtube_comments(comments)
end
comment_html ||= ""
end
fmt_stream = video.fmt_stream(decrypt_function)
adaptive_fmts = video.adaptive_fmts(decrypt_function)
video_streams = video.video_streams(adaptive_fmts)
audio_streams = video.audio_streams(adaptive_fmts)
captions = video.captions
preferred_captions = captions.select { |caption|
params[:preferred_captions].includes?(caption.name.simpleText) ||
params[:preferred_captions].includes?(caption.languageCode.split("-")[0])
}
preferred_captions.sort_by! { |caption|
(params[:preferred_captions].index(caption.name.simpleText) ||
params[:preferred_captions].index(caption.languageCode.split("-")[0])).not_nil!
}
captions = captions - preferred_captions
aspect_ratio = "16:9"
video.description = fill_links(video.description, "https", "www.youtube.com")
video.description = replace_links(video.description)
description = video.short_description
host_url = make_host_url(Kemal.config.ssl || CONFIG.https_only, env.request.headers["Host"]?)
host_params = env.request.query_params
host_params.delete_all("v")
if video.info["hlsvp"]?
hlsvp = video.info["hlsvp"]
hlsvp = hlsvp.gsub("https://manifest.googlevideo.com", host_url)
end
thumbnail = "/vi/#{video.id}/maxres.jpg"
if params[:raw]
url = fmt_stream[0]["url"]
fmt_stream.each do |fmt|
if fmt["label"].split(" - ")[0] == params[:quality]
url = fmt["url"]
end
end
next env.redirect url
end
rvs = [] of Hash(String, String)
video.info["rvs"]?.try &.split(",").each do |rv|
rvs << HTTP::Params.parse(rv).to_h
end
# rating = (video.likes.to_f/(video.likes.to_f + video.dislikes.to_f) * 4 + 1)
rating = video.info["avg_rating"].to_f64
engagement = ((video.dislikes.to_f + video.likes.to_f)/video.views * 100)
playability_status = video.player_response["playabilityStatus"]?
if playability_status && playability_status["status"] == "LIVE_STREAM_OFFLINE"
reason = playability_status["reason"]?.try &.as_s
end
reason ||= ""
templated "watch"
end
get "/embed/:id" do |env|
id = env.params.url["id"]
if id.includes?("%20") || id.includes?("+") || env.params.query.to_s.includes?("%20") || env.params.query.to_s.includes?("+")
id = env.params.url["id"].gsub("%20", "").delete("+")
url = "/embed/#{id}"
if env.params.query.size > 0
url += "?#{env.params.query.to_s.gsub("%20", "").delete("+")}"
end
next env.redirect url
end
if id.size > 11
url = "/embed/#{id[0, 11]}"
if env.params.query.size > 0
url += "?#{env.params.query}"
end
next env.redirect url
end
params = process_video_params(env.params.query, nil)
begin
video = get_video(id, PG_DB, proxies)
rescue ex : VideoRedirect
next env.redirect "/embed/#{ex.message}"
rescue ex
error_message = ex.message
next templated "error"
end
fmt_stream = video.fmt_stream(decrypt_function)
adaptive_fmts = video.adaptive_fmts(decrypt_function)
video_streams = video.video_streams(adaptive_fmts)
audio_streams = video.audio_streams(adaptive_fmts)
captions = video.captions
preferred_captions = captions.select { |caption|
params[:preferred_captions].includes?(caption.name.simpleText) ||
params[:preferred_captions].includes?(caption.languageCode.split("-")[0])
}
preferred_captions.sort_by! { |caption|
(params[:preferred_captions].index(caption.name.simpleText) ||
params[:preferred_captions].index(caption.languageCode.split("-")[0])).not_nil!
}
captions = captions - preferred_captions
aspect_ratio = nil
video.description = fill_links(video.description, "https", "www.youtube.com")
video.description = replace_links(video.description)
description = video.short_description
host_url = make_host_url(Kemal.config.ssl || CONFIG.https_only, env.request.headers["Host"]?)
host_params = env.request.query_params
host_params.delete_all("v")
if video.info["hlsvp"]?
hlsvp = video.info["hlsvp"]
hlsvp = hlsvp.gsub("https://manifest.googlevideo.com", host_url)
end
thumbnail = "/vi/#{video.id}/maxres.jpg"
if params[:raw]
url = fmt_stream[0]["url"]
fmt_stream.each do |fmt|
if fmt["label"].split(" - ")[0] == params[:quality]
url = fmt["url"]
end
end
next env.redirect url
end
rendered "embed"
end
# Playlists
get "/playlist" do |env|
plid = env.params.query["list"]?
if !plid
next env.redirect "/"
end
page = env.params.query["page"]?.try &.to_i?
page ||= 1
if plid.starts_with? "RD"
next env.redirect "/mix?list=#{plid}"
end
begin
playlist = fetch_playlist(plid)
rescue ex
error_message = ex.message
next templated "error"
end
begin
videos = fetch_playlist_videos(plid, page, playlist.video_count)
rescue ex
videos = [] of PlaylistVideo
end
templated "playlist"
end
get "/mix" do |env|
rdid = env.params.query["list"]?
if !rdid
next env.redirect "/"
end
continuation = env.params.query["continuation"]?
continuation ||= rdid.lchop("RD")
begin
mix = fetch_mix(rdid, continuation)
rescue ex
error_message = ex.message
next templated "error"
end
templated "mix"
end
# Search
get "/results" do |env|
query = env.params.query["search_query"]?
query ||= env.params.query["q"]?
query ||= ""
page = env.params.query["page"]?.try &.to_i?
page ||= 1
if query
env.redirect "/search?q=#{URI.escape(query)}&page=#{page}"
else
env.redirect "/"
end
end
get "/search" do |env|
query = env.params.query["search_query"]?
query ||= env.params.query["q"]?
query ||= ""
page = env.params.query["page"]?.try &.to_i?
page ||= 1
user = env.get? "user"
if user
user = user.as(User)
view_name = "subscriptions_#{sha256(user.email)[0..7]}"
end
channel = nil
content_type = "all"
date = ""
duration = ""
features = [] of String
sort = "relevance"
subscriptions = nil
operators = query.split(" ").select { |a| a.match(/\w+:[\w,]+/) }
operators.each do |operator|
key, value = operator.downcase.split(":")
case key
when "channel", "user"
channel = value
when "content_type", "type"
content_type = value
when "date"
date = value
when "duration"
duration = value
when "feature", "features"
features = value.split(",")
when "sort"
sort = value
when "subscriptions"
subscriptions = value == "true"
end
end
search_query = (query.split(" ") - operators).join(" ")
if channel
count, videos = channel_search(search_query, page, channel)
elsif subscriptions
if view_name
videos = PG_DB.query_all("SELECT id,title,published,updated,ucid,author FROM (
SELECT *,
to_tsvector(#{view_name}.title) ||
to_tsvector(#{view_name}.author)
as document
FROM #{view_name}
) v_search WHERE v_search.document @@ plainto_tsquery($1) LIMIT 20 OFFSET $2;", search_query, (page - 1) * 20, as: ChannelVideo)
count = videos.size
else
videos = [] of ChannelVideo
count = 0
end
else
begin
search_params = produce_search_params(sort: sort, date: date, content_type: content_type,
duration: duration, features: features)
rescue ex
error_message = ex.message
next templated "error"
end
count, videos = search(search_query, page, search_params).as(Tuple)
end
templated "search"
end
# Users
get "/login" do |env|
user = env.get? "user"
if user
next env.redirect "/feed/subscriptions"
end
referer = get_referer(env, "/feed/subscriptions")
account_type = env.params.query["type"]?
account_type ||= "invidious"
if account_type == "invidious"
captcha = generate_captcha(HMAC_KEY)
end
tfa = env.params.query["tfa"]?
tfa ||= false
templated "login"
end
# See https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/youtube.py#L79
post "/login" do |env|
referer = get_referer(env, "/feed/subscriptions")
email = env.params.body["email"]?
password = env.params.body["password"]?
account_type = env.params.query["type"]?
account_type ||= "google"
if account_type == "google"
tfa_code = env.params.body["tfa"]?.try &.lchop("G-")
begin
client = make_client(LOGIN_URL)
headers = HTTP::Headers.new
headers["Content-Type"] = "application/x-www-form-urlencoded;charset=utf-8"
headers["Google-Accounts-XSRF"] = "1"
login_page = client.get("/ServiceLogin")
headers = login_page.cookies.add_request_headers(headers)
login_page = XML.parse_html(login_page.body)
inputs = {} of String => String
login_page.xpath_nodes(%q(//input[@type="submit"])).each do |node|
name = node["id"]? || node["name"]?
name ||= ""
value = node["value"]?
value ||= ""
if name != "" && value != ""
inputs[name] = value
end
end
login_page.xpath_nodes(%q(//input[@type="hidden"])).each do |node|
name = node["id"]? || node["name"]?
name ||= ""
value = node["value"]?
value ||= ""
if name != "" && value != ""
inputs[name] = value
end
end
lookup_req = %(["#{email}",null,[],null,"US",null,null,2,false,true,[null,null,[2,1,null,1,"https://accounts.google.com/ServiceLogin?passive=1209600&continue=https%3A%2F%2Faccounts.google.com%2FManageAccount&followup=https%3A%2F%2Faccounts.google.com%2FManageAccount",null,[],4,[]],1,[null,null,[]],null,null,null,true],"#{email}"])
lookup_results = client.post("/_/signin/sl/lookup", headers, login_req(inputs, lookup_req))
headers = lookup_results.cookies.add_request_headers(headers)
lookup_results = lookup_results.body
lookup_results = lookup_results[5..-1]
lookup_results = JSON.parse(lookup_results)
user_hash = lookup_results[0][2]
challenge_req = %(["#{user_hash}",null,1,null,[1,null,null,null,["#{password}",null,true]],[null,null,[2,1,null,1,"https://accounts.google.com/ServiceLogin?passive=1209600&continue=https%3A%2F%2Faccounts.google.com%2FManageAccount&followup=https%3A%2F%2Faccounts.google.com%2FManageAccount",null,[],4,[]],1,[null,null,[]],null,null,null,true]])
challenge_results = client.post("/_/signin/sl/challenge", headers, login_req(inputs, challenge_req))
headers = challenge_results.cookies.add_request_headers(headers)
challenge_results = challenge_results.body
challenge_results = challenge_results[5..-1]
challenge_results = JSON.parse(challenge_results)
headers["Cookie"] = URI.unescape(headers["Cookie"])
if challenge_results[0][-1]?.try &.[5] == "INCORRECT_ANSWER_ENTERED"
error_message = "Incorrect password"
next templated "error"
end
if challenge_results[0][-1][0].as_a?
# Prefer Authenticator app and SMS over unsupported protocols
if challenge_results[0][-1][0][0][8] != 6 || challenge_results[0][-1][0][0][8] != 9
tfa = challenge_results[0][-1][0].as_a.select { |auth_type| auth_type[8] == 6 || auth_type[8] == 9 }[0]
select_challenge = "[#{challenge_results[0][-1][0].as_a.index(tfa).not_nil!}]"
tl = challenge_results[1][2]
tfa = client.post("/_/signin/selectchallenge?TL=#{tl}", headers, login_req(inputs, select_challenge)).body
tfa = tfa[5..-1]
tfa = JSON.parse(tfa)[0][-1]
else
tfa = challenge_results[0][-1][0][0]
end
if tfa[2] == "TWO_STEP_VERIFICATION"
if tfa[5] == "QUOTA_EXCEEDED"
error_message = "Quota exceeded, try again in a few hours"
next templated "error"
end
if !tfa_code
next env.redirect "/login?tfa=true&type=google&referer=#{URI.escape(referer)}"
end
tl = challenge_results[1][2]
request_type = tfa[8]
case request_type
when 6
# Authenticator app
tfa_req = %(["#{user_hash}",null,2,null,[6,null,null,null,null,["#{tfa_code}",false]]])
when 9
# Voice or text message
tfa_req = %(["#{user_hash}",null,2,null,[9,null,null,null,null,null,null,null,[null,"#{tfa_code}",false,2]]])
else
error_message = "Unable to login, make sure two-factor authentication (Authenticator or SMS) is enabled."
next templated "error"
end
challenge_results = client.post("/_/signin/challenge?hl=en&TL=#{tl}", headers, login_req(inputs, tfa_req))
headers = challenge_results.cookies.add_request_headers(headers)
challenge_results = challenge_results.body
challenge_results = challenge_results[5..-1]
challenge_results = JSON.parse(challenge_results)
if challenge_results[0][-1]?.try &.[5] == "INCORRECT_ANSWER_ENTERED"
error_message = "Invalid TFA code"
next templated "error"
end
end
end
login_res = challenge_results[0][13][2].to_s
login = client.get(login_res, headers)
headers = login.cookies.add_request_headers(headers)
login = client.get(login.headers["Location"], headers)
headers = HTTP::Headers.new
headers = login.cookies.add_request_headers(headers)
sid = login.cookies["SID"].value
client = make_client(YT_URL)
user = get_user(sid, client, headers, PG_DB)
# We are now logged in
host = URI.parse(env.request.headers["Host"]).host
login.cookies.each do |cookie|
if Kemal.config.ssl || CONFIG.https_only
cookie.secure = true
else
cookie.secure = false
end
cookie.extension = cookie.extension.not_nil!.gsub(".youtube.com", host)
cookie.extension = cookie.extension.not_nil!.gsub("Secure; ", "")
end
login.cookies.add_response_headers(env.response.headers)
env.redirect referer
rescue ex
error_message = "Login failed. This may be because two-factor authentication is not enabled on your account."
next templated "error"
end
elsif account_type == "invidious"
challenge_response = env.params.body["challenge_response"]?
token = env.params.body["token"]?
action = env.params.body["action"]?
action ||= "signin"
if !email
error_message = "User ID is a required field"
next templated "error"
end
if !password
error_message = "Password is a required field"
next templated "error"
end
if !challenge_response || !token
error_message = "CAPTCHA is a required field"
next templated "error"
end
challenge_response = challenge_response.lstrip('0')
if OpenSSL::HMAC.digest(:sha256, HMAC_KEY, challenge_response) == Base64.decode(token)
else
error_message = "Invalid CAPTCHA response"
next templated "error"
end
if action == "signin"
user = PG_DB.query_one?("SELECT * FROM users WHERE LOWER(email) = LOWER($1) AND password IS NOT NULL", email, as: User)
if !user
error_message = "Invalid username or password"
next templated "error"
end
if !user.password
error_message = "Please sign in using 'Sign in with Google'"
next templated "error"
end
if Crypto::Bcrypt::Password.new(user.password.not_nil!) == password
sid = Base64.urlsafe_encode(Random::Secure.random_bytes(32))
PG_DB.exec("UPDATE users SET id = id || $1 WHERE LOWER(email) = LOWER($2)", [sid], email)
if Kemal.config.ssl || CONFIG.https_only
secure = true
else
secure = false
end
env.response.cookies["SID"] = HTTP::Cookie.new(name: "SID", value: sid, expires: Time.now + 2.years,
secure: secure, http_only: true)
else
error_message = "Invalid username or password"
next templated "error"
end
elsif action == "register"
if password.empty?
error_message = "Password cannot be empty"
next templated "error"
end
# See https://security.stackexchange.com/a/39851
if password.size > 55
error_message = "Password cannot be longer than 55 characters"
next templated "error"
end
user = PG_DB.query_one?("SELECT * FROM users WHERE LOWER(email) = LOWER($1) AND password IS NOT NULL", email, as: User)
if user
error_message = "Please sign in"
next templated "error"
end
sid = Base64.urlsafe_encode(Random::Secure.random_bytes(32))
user = create_user(sid, email, password)
user_array = user.to_a
user_array[5] = user_array[5].to_json
args = arg_array(user_array)
PG_DB.exec("INSERT INTO users VALUES (#{args})", user_array)
view_name = "subscriptions_#{sha256(user.email)[0..7]}"
PG_DB.exec("CREATE MATERIALIZED VIEW #{view_name} AS \
SELECT * FROM channel_videos WHERE \
ucid = ANY ((SELECT subscriptions FROM users WHERE email = '#{user.email}')::text[]) \
ORDER BY published DESC;")
if Kemal.config.ssl || CONFIG.https_only
secure = true
else
secure = false
end
env.response.cookies["SID"] = HTTP::Cookie.new(name: "SID", value: sid, expires: Time.now + 2.years,
secure: secure, http_only: true)
end
env.redirect referer
end
end
# TODO: Update this with using the same method for /clear_watch_history to prevent CSRF
get "/signout" do |env|
referer = get_referer(env)
env.request.cookies.each do |cookie|
cookie.expires = Time.new(1990, 1, 1)
end
if env.get? "user"
user = env.get("user").as(User)
sid = env.get("sid").as(String)
PG_DB.exec("UPDATE users SET id = array_remove(id, $1) WHERE email = $2", sid, user.email)
end
env.request.cookies.add_response_headers(env.response.headers)
env.redirect referer
end
get "/preferences" do |env|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
templated "preferences"
else
env.redirect referer
end
end
post "/preferences" do |env|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
video_loop = env.params.body["video_loop"]?.try &.as(String)
video_loop ||= "off"
video_loop = video_loop == "on"
autoplay = env.params.body["autoplay"]?.try &.as(String)
autoplay ||= "off"
autoplay = autoplay == "on"
listen = env.params.body["listen"]?.try &.as(String)
listen ||= "off"
listen = listen == "on"
speed = env.params.body["speed"]?.try &.as(String).to_f?
speed ||= 1.0
quality = env.params.body["quality"]?.try &.as(String)
quality ||= "hd720"
volume = env.params.body["volume"]?.try &.as(String).to_i?
volume ||= 100
comments_0 = env.params.body["comments_0"]?.try &.as(String) || "youtube"
comments_1 = env.params.body["comments_1"]?.try &.as(String) || ""
comments = [comments_0, comments_1]
captions_0 = env.params.body["captions_0"]?.try &.as(String) || ""
captions_1 = env.params.body["captions_1"]?.try &.as(String) || ""
captions_2 = env.params.body["captions_2"]?.try &.as(String) || ""
captions = [captions_0, captions_1, captions_2]
related_videos = env.params.body["related_videos"]?.try &.as(String)
related_videos ||= "off"
related_videos = related_videos == "on"
redirect_feed = env.params.body["redirect_feed"]?.try &.as(String)
redirect_feed ||= "off"
redirect_feed = redirect_feed == "on"
dark_mode = env.params.body["dark_mode"]?.try &.as(String)
dark_mode ||= "off"
dark_mode = dark_mode == "on"
thin_mode = env.params.body["thin_mode"]?.try &.as(String)
thin_mode ||= "off"
thin_mode = thin_mode == "on"
max_results = env.params.body["max_results"]?.try &.as(String).to_i?
max_results ||= 40
sort = env.params.body["sort"]?.try &.as(String)
sort ||= "published"
latest_only = env.params.body["latest_only"]?.try &.as(String)
latest_only ||= "off"
latest_only = latest_only == "on"
unseen_only = env.params.body["unseen_only"]?.try &.as(String)
unseen_only ||= "off"
unseen_only = unseen_only == "on"
notifications_only = env.params.body["notifications_only"]?.try &.as(String)
notifications_only ||= "off"
notifications_only = notifications_only == "on"
preferences = {
"video_loop" => video_loop,
"autoplay" => autoplay,
"listen" => listen,
"speed" => speed,
"quality" => quality,
"volume" => volume,
"comments" => comments,
"captions" => captions,
"related_videos" => related_videos,
"redirect_feed" => redirect_feed,
"dark_mode" => dark_mode,
"thin_mode" => thin_mode,
"max_results" => max_results,
"sort" => sort,
"latest_only" => latest_only,
"unseen_only" => unseen_only,
"notifications_only" => notifications_only,
}.to_json
PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", preferences, user.email)
end
env.redirect referer
end
get "/toggle_theme" do |env|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
preferences = user.preferences
if preferences.dark_mode
preferences.dark_mode = false
else
preferences.dark_mode = true
end
PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", preferences.to_json, user.email)
end
env.redirect referer
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|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
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"]
client = make_client(YT_URL)
subs = client.get("/subscription_manager?disable_polymer=1", headers)
headers["Cookie"] += "; " + subs.cookies.add_request_headers(headers)["Cookie"]
match = subs.body.match(/'XSRF_TOKEN': "(?[A-Za-z0-9\_\-\=]+)"/)
if match
session_token = match["session_token"]
else
next env.redirect referer
end
channel_req["session_token"] = session_token
headers["content-type"] = "application/x-www-form-urlencoded"
subs = XML.parse_html(subs.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
client.post("/subscription_ajax?action_update_subscription_preferences=1", headers,
HTTP::Params.encode(channel_req)).body
end
end
env.redirect referer
end
get "/subscription_manager" do |env|
user = env.get? "user"
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"]
client = make_client(YT_URL)
user = get_user(user.id[0], client, 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"
client = make_client(YT_URL)
subscriptions = [] of InvidiousChannel
user.subscriptions.each do |ucid|
begin
subscriptions << get_channel(ucid, client, PG_DB, false)
rescue ex
next
end
end
subscriptions.sort_by! { |channel| channel.author.downcase }
if action_takeout
host_url = make_host_url(Kemal.config.ssl || CONFIG.https_only, env.request.headers["Host"]?)
if format == "json"
env.response.content_type = "application/json"
env.response.headers["content-disposition"] = "attachment"
next {
"subscriptions" => user.subscriptions,
"watch_history" => user.watched,
"preferences" => user.preferences,
}.to_json
else
env.response.content_type = "application/xml"
env.response.headers["content-disposition"] = "attachment"
export = XML.build do |xml|
xml.element("opml", version: "1.1") do
xml.element("body") do
if format == "newpipe"
title = "YouTube Subscriptions"
else
title = "Invidious Subscriptions"
end
xml.element("outline", text: title, title: title) do
subscriptions.each do |channel|
if format == "newpipe"
xmlUrl = "https://www.youtube.com/feeds/videos.xml?channel_id=#{channel.id}"
else
xmlUrl = "#{host_url}/feed/channel/#{channel.id}"
end
xml.element("outline", text: channel.author, title: channel.author,
"type": "rss", xmlUrl: xmlUrl)
end
end
end
end
end
next export.gsub(%(\n), "")
end
end
templated "subscription_manager"
end
get "/data_control" do |env|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
templated "data_control"
else
env.redirect referer
end
end
post "/data_control" do |env|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
HTTP::FormData.parse(env.request) do |part|
body = part.body.gets_to_end
if body.empty?
next
end
case part.name
when "import_invidious"
body = JSON.parse(body)
body["subscriptions"]?.try &.as_a.each do |ucid|
ucid = ucid.as_s
if !user.subscriptions.includes? ucid
begin
client = make_client(YT_URL)
get_channel(ucid, client, PG_DB, false, false)
PG_DB.exec("UPDATE users SET subscriptions = array_append(subscriptions,$1) WHERE email = $2", ucid, user.email)
user.subscriptions << ucid
rescue ex
next
end
end
end
if body["watch_history"]?
watched = user.watched + body["watch_history"].as_a.map { |a| a.as_s }
watched.uniq!
PG_DB.exec("UPDATE users SET watched = $1 WHERE email = $2", watched, user.email)
end
if body["preferences"]?
PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", body["preferences"].to_json, user.email)
end
when "import_youtube"
subscriptions = XML.parse(body)
subscriptions.xpath_nodes(%q(//outline[@type="rss"])).each do |channel|
ucid = channel["xmlUrl"].match(/UC[a-zA-Z0-9_-]{22}/).not_nil![0]
if !user.subscriptions.includes? ucid
begin
client = make_client(YT_URL)
get_channel(ucid, client, PG_DB, false, false)
PG_DB.exec("UPDATE users SET subscriptions = array_append(subscriptions,$1) WHERE email = $2", ucid, user.email)
user.subscriptions << ucid
rescue ex
next
end
end
end
when "import_freetube"
body.scan(/"channelId":"(?[a-zA-Z0-9_-]{24})"/).each do |md|
ucid = md["channel_id"]
if !user.subscriptions.includes? ucid
begin
client = make_client(YT_URL)
get_channel(ucid, client, PG_DB, false, false)
PG_DB.exec("UPDATE users SET subscriptions = array_append(subscriptions,$1) WHERE email = $2", ucid, user.email)
user.subscriptions << ucid
rescue ex
next
end
end
end
when "import_newpipe_subscriptions"
body = JSON.parse(body)
body["subscriptions"].as_a.each do |channel|
ucid = channel["url"].as_s.match(/UC[a-zA-Z0-9_-]{22}/).not_nil![0]
if !user.subscriptions.includes? ucid
begin
client = make_client(YT_URL)
get_channel(ucid, client, PG_DB, false, false)
PG_DB.exec("UPDATE users SET subscriptions = array_append(subscriptions,$1) WHERE email = $2", ucid, user.email)
user.subscriptions << ucid
rescue ex
next
end
end
end
when "import_newpipe"
Zip::Reader.open(body) do |file|
file.each_entry do |entry|
if entry.filename == "newpipe.db"
# We do this because the SQLite driver cannot parse a database from an IO
# Currently: channel URLs can **only** be subscriptions, and
# video URLs can **only** be watch history, so this works okay for now.
db = entry.io.gets_to_end
db.scan(/youtube\.com\/watch\?v\=(?[a-zA-Z0-9_-]{11})/) do |md|
id = md["id"]
if !user.watched.includes? id
PG_DB.exec("UPDATE users SET watched = array_append(watched,$1) WHERE email = $2", id, user.email)
user.watched << id
end
end
db.scan(/youtube\.com\/channel\/(?[a-zA-Z0-9_-]{22})/) do |md|
ucid = md["ucid"]
if !user.subscriptions.includes? ucid
begin
client = make_client(YT_URL)
get_channel(ucid, client, PG_DB, false, false)
PG_DB.exec("UPDATE users SET subscriptions = array_append(subscriptions,$1) WHERE email = $2", ucid, user.email)
user.subscriptions << ucid
rescue ex
next
end
end
end
end
end
end
end
end
end
env.redirect referer
end
get "/subscription_ajax" do |env|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
if env.params.query["action_create_subscription_to_channel"]?
action = "action_create_subscription_to_channel"
elsif env.params.query["action_remove_subscriptions"]?
action = "action_remove_subscriptions"
else
next env.redirect referer
end
channel_id = env.params.query["c"]?
channel_id ||= ""
if !user.password
headers = HTTP::Headers.new
headers["Cookie"] = env.request.headers["Cookie"]
client = make_client(YT_URL)
subs = client.get("/subscription_manager?disable_polymer=1", headers)
headers["Cookie"] += "; " + subs.cookies.add_request_headers(headers)["Cookie"]
match = subs.body.match(/'XSRF_TOKEN': "(?[A-Za-z0-9\_\-\=]+)"/)
if match
session_token = match["session_token"]
else
next env.redirect referer
end
headers["content-type"] = "application/x-www-form-urlencoded"
post_req = {
"session_token" => session_token,
}
post_req = HTTP::Params.encode(post_req)
post_url = "/subscription_ajax?#{action}=1&c=#{channel_id}"
# Update user
if client.post(post_url, headers, post_req).status_code == 200
sid = user.id
case action
when .starts_with? "action_create"
PG_DB.exec("UPDATE users SET subscriptions = array_append(subscriptions,$1) WHERE id = $2", channel_id, sid)
when .starts_with? "action_remove"
PG_DB.exec("UPDATE users SET subscriptions = array_remove(subscriptions,$1) WHERE id = $2", channel_id, sid)
end
end
else
sid = user.id
case action
when .starts_with? "action_create"
if !user.subscriptions.includes? channel_id
PG_DB.exec("UPDATE users SET subscriptions = array_append(subscriptions,$1) WHERE id = $2", channel_id, sid)
client = make_client(YT_URL)
get_channel(channel_id, client, PG_DB, false, false)
end
when .starts_with? "action_remove"
PG_DB.exec("UPDATE users SET subscriptions = array_remove(subscriptions,$1) WHERE id = $2", channel_id, sid)
end
end
end
env.redirect referer
end
get "/delete_account" do |env|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
challenge, token = create_response(user.email, "delete_account", HMAC_KEY)
templated "delete_account"
else
env.redirect referer
end
end
post "/delete_account" do |env|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
challenge = env.params.body["challenge"]?
token = env.params.body["token"]?
begin
validate_response(challenge, token, user.email, "delete_account", HMAC_KEY)
rescue ex
error_message = ex.message
next templated "error"
end
view_name = "subscriptions_#{sha256(user.email)[0..7]}"
PG_DB.exec("DROP MATERIALIZED VIEW #{view_name}")
PG_DB.exec("DELETE FROM users * WHERE email = $1", user.email)
env.request.cookies.each do |cookie|
cookie.expires = Time.new(1990, 1, 1)
end
env.request.cookies.add_response_headers(env.response.headers)
end
env.redirect referer
end
get "/clear_watch_history" do |env|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
challenge, token = create_response(user.email, "clear_watch_history", HMAC_KEY)
templated "clear_watch_history"
else
env.redirect referer
end
end
post "/clear_watch_history" do |env|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
challenge = env.params.body["challenge"]?
token = env.params.body["token"]?
begin
validate_response(challenge, token, user.email, "clear_watch_history", HMAC_KEY)
rescue ex
error_message = ex.message
next templated "error"
end
PG_DB.exec("UPDATE users SET watched = '{}' WHERE email = $1", user.email)
end
env.redirect referer
end
# Feeds
get "/feed/subscriptions" do |env|
user = env.get? "user"
referer = get_referer(env)
if user
user = user.as(User)
preferences = user.preferences
# Refresh account
headers = HTTP::Headers.new
headers["Cookie"] = env.request.headers["Cookie"]
if !user.password
client = make_client(YT_URL)
user = get_user(user.id[0], client, headers, PG_DB)
end
max_results = preferences.max_results
max_results ||= env.params.query["max_results"]?.try &.to_i?
max_results ||= 40
page = env.params.query["page"]?.try &.to_i?
page ||= 1
if max_results < 0
limit = nil
offset = (page - 1) * 1
else
limit = max_results
offset = (page - 1) * max_results
end
notifications = PG_DB.query_one("SELECT notifications FROM users WHERE email = $1", user.email,
as: Array(String))
view_name = "subscriptions_#{sha256(user.email)[0..7]}"
if preferences.notifications_only && !notifications.empty?
args = arg_array(notifications)
notifications = PG_DB.query_all("SELECT * FROM channel_videos WHERE id IN (#{args})
ORDER BY published DESC", notifications, as: ChannelVideo)
videos = [] of ChannelVideo
notifications.sort_by! { |video| video.published }.reverse!
case preferences.sort
when "alphabetically"
notifications.sort_by! { |video| video.title }
when "alphabetically - reverse"
notifications.sort_by! { |video| video.title }.reverse!
when "channel name"
notifications.sort_by! { |video| video.author }
when "channel name - reverse"
notifications.sort_by! { |video| video.author }.reverse!
end
else
if preferences.latest_only
if preferences.unseen_only
if user.watched.empty?
watched = "'{}'"
else
watched = arg_array(user.watched)
end
videos = PG_DB.query_all("SELECT DISTINCT ON (ucid) * FROM #{view_name} WHERE \
id NOT IN (#{watched}) ORDER BY ucid, published DESC",
user.watched, as: ChannelVideo)
else
videos = PG_DB.query_all("SELECT DISTINCT ON (ucid) * FROM #{view_name} \
ORDER BY ucid, published DESC", as: ChannelVideo)
end
videos.sort_by! { |video| video.published }.reverse!
else
if preferences.unseen_only
if user.watched.empty?
watched = "'{}'"
else
watched = arg_array(user.watched, 3)
end
videos = PG_DB.query_all("SELECT * FROM #{view_name} WHERE \
id NOT IN (#{watched}) LIMIT $1 OFFSET $2",
[limit, offset] + user.watched, as: ChannelVideo)
else
videos = PG_DB.query_all("SELECT * FROM #{view_name} \
ORDER BY published DESC LIMIT $1 OFFSET $2", limit, offset, as: ChannelVideo)
end
end
case preferences.sort
when "alphabetically"
videos.sort_by! { |video| video.title }
when "alphabetically - reverse"
videos.sort_by! { |video| video.title }.reverse!
when "channel name"
videos.sort_by! { |video| video.author }
when "channel name - reverse"
videos.sort_by! { |video| video.author }.reverse!
end
# TODO: Add option to disable picking out notifications from regular feed
notifications = PG_DB.query_one("SELECT notifications FROM users WHERE email = $1", user.email,
as: Array(String))
notifications = videos.select { |v| notifications.includes? v.id }
videos = videos - notifications
end
if !limit
videos = videos[0..max_results]
end
PG_DB.exec("UPDATE users SET notifications = $1, updated = $2 WHERE id = $3", [] of String, Time.now,
user.id)
user.notifications = [] of String
env.set "user", user
templated "subscriptions"
else
env.redirect referer
end
end
get "/feed/channel/:ucid" do |env|
env.response.content_type = "text/xml"
ucid = env.params.url["ucid"]
begin
author, ucid, auto_generated = get_about_info(ucid)
rescue ex
error_message = ex.message
halt env, status_code: 500, response: error_message
end
page = 1
videos, count = get_60_videos(ucid, page, auto_generated)
host_url = make_host_url(Kemal.config.ssl || CONFIG.https_only, env.request.headers["Host"]?)
path = env.request.path
feed = 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") do
xml.element("link", rel: "self", href: "#{host_url}#{path}")
xml.element("id") { xml.text "yt:channel:#{ucid}" }
xml.element("yt:channelId") { xml.text ucid }
xml.element("title") { xml.text author }
xml.element("link", rel: "alternate", href: "#{host_url}/channel/#{ucid}")
xml.element("author") do
xml.element("name") { xml.text author }
xml.element("uri") { xml.text "#{host_url}/channel/#{ucid}" }
end
videos.each do |video|
xml.element("entry") do
xml.element("id") { xml.text "yt:video:#{video.id}" }
xml.element("yt:videoId") { xml.text video.id }
xml.element("yt:channelId") { xml.text video.ucid }
xml.element("title") { xml.text video.title }
xml.element("link", rel: "alternate", href: "#{host_url}/watch?v=#{video.id}")
xml.element("author") do
if auto_generated
xml.element("name") { xml.text video.author }
xml.element("uri") { xml.text "#{host_url}/channel/#{video.ucid}" }
else
xml.element("name") { xml.text author }
xml.element("uri") { xml.text "#{host_url}/channel/#{ucid}" }
end
end
xml.element("published") { xml.text video.published.to_s("%Y-%m-%dT%H:%M:%S%:z") }
xml.element("media:group") do
xml.element("media:title") { xml.text video.title }
xml.element("media:thumbnail", url: "/vi/#{video.id}/mqdefault.jpg",
width: "320", height: "180")
xml.element("media:description") { xml.text video.description }
end
xml.element("media:community") do
xml.element("media:statistics", views: video.views)
end
end
end
end
end
feed
end
get "/feed/private" do |env|
token = env.params.query["token"]?
if !token
halt env, status_code: 403
end
user = PG_DB.query_one?("SELECT * FROM users WHERE token = $1", token.strip, as: User)
if !user
halt env, status_code: 403
end
max_results = env.params.query["max_results"]?.try &.to_i?
max_results ||= 40
page = env.params.query["page"]?.try &.to_i?
page ||= 1
if max_results < 0
limit = nil
offset = (page - 1) * 1
else
limit = max_results
offset = (page - 1) * max_results
end
latest_only = env.params.query["latest_only"]?.try &.to_i?
latest_only ||= 0
latest_only = latest_only == 1
view_name = "subscriptions_#{sha256(user.email)[0..7]}"
if latest_only
videos = PG_DB.query_all("SELECT DISTINCT ON (ucid) * FROM #{view_name} ORDER BY ucid, published DESC", as: ChannelVideo)
videos.sort_by! { |video| video.published }.reverse!
else
videos = PG_DB.query_all("SELECT * FROM #{view_name} \
ORDER BY published DESC LIMIT $1 OFFSET $2", limit, offset, as: ChannelVideo)
end
sort = env.params.query["sort"]?
sort ||= "published"
case sort
when "alphabetically"
videos.sort_by! { |video| video.title }
when "reverse_alphabetically"
videos.sort_by! { |video| video.title }.reverse!
when "channel_name"
videos.sort_by! { |video| video.author }
when "reverse_channel_name"
videos.sort_by! { |video| video.author }.reverse!
end
if !limit
videos = videos[0..max_results]
end
host_url = make_host_url(Kemal.config.ssl || CONFIG.https_only, env.request.headers["Host"]?)
path = env.request.path
query = env.request.query.not_nil!
feed = XML.build(indent: " ", encoding: "UTF-8") do |xml|
xml.element("feed", xmlns: "http://www.w3.org/2005/Atom", "xmlns:media": "http://search.yahoo.com/mrss/",
"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}#{path}?#{query}")
xml.element("title") { xml.text "Invidious Private Feed for #{user.email}" }
videos.each do |video|
xml.element("entry") do
xml.element("id") { xml.text "yt:video:#{video.id}" }
xml.element("yt:videoId") { xml.text video.id }
xml.element("yt:channelId") { xml.text video.ucid }
xml.element("title") { xml.text video.title }
xml.element("link", rel: "alternate", href: "#{host_url}/watch?v=#{video.id}")
xml.element("author") do
xml.element("name") { xml.text video.author }
xml.element("uri") { xml.text "#{host_url}/channel/#{video.ucid}" }
end
xml.element("published") { xml.text video.published.to_s("%Y-%m-%dT%H:%M:%S%:z") }
xml.element("updated") { xml.text video.updated.to_s("%Y-%m-%dT%H:%M:%S%:z") }
xml.element("media:group") do
xml.element("media:title") { xml.text video.title }
xml.element("media:thumbnail", url: "/vi/#{video.id}/mqdefault.jpg",
width: "320", height: "180")
end
end
end
end
end
env.response.content_type = "application/atom+xml"
feed
end
get "/feed/playlist/:plid" do |env|
plid = env.params.url["plid"]
host_url = make_host_url(Kemal.config.ssl || CONFIG.https_only, env.request.headers["Host"]?)
path = env.request.path
client = make_client(YT_URL)
response = 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"
node["url"] = "#{host_url}#{URI.parse(node["url"]).full_path}"
when "href"
node["href"] = "#{host_url}#{URI.parse(node["href"]).full_path}"
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"]).full_path}"
document = document.gsub(match[0], "#{content}")
end
env.response.content_type = "text/xml"
document
end
# Channels
# 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|
client = make_client(YT_URL)
user = env.params.url["user"]
response = client.get("/c/#{user}")
document = XML.parse_html(response.body)
anchor = document.xpath_node(%q(//a[contains(@class,"branded-page-header-title-link")]))
if !anchor
next env.redirect "/"
end
env.redirect anchor["href"]
end
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 "/channel/:ucid" do |env|
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
begin
author, ucid, auto_generated, sub_count = get_about_info(ucid)
rescue ex
error_message = ex.message
next templated "error"
end
if !auto_generated
if author.includes? " "
env.set "search", "channel:#{ucid} "
else
env.set "search", "channel:#{author.downcase} "
end
end
videos, count = get_60_videos(ucid, page, auto_generated)
templated "channel"
end
get "/channel/:ucid/videos" do |env|
ucid = env.params.url["ucid"]
params = env.request.query
if !params || params.empty?
params = ""
else
params = "?#{params}"
end
env.redirect "/channel/#{ucid}#{params}"
end
# API Endpoints
get "/api/v1/captions/:id" do |env|
env.response.content_type = "application/json"
id = env.params.url["id"]
client = make_client(YT_URL)
begin
video = get_video(id, PG_DB, proxies)
rescue ex : VideoRedirect
next env.redirect "/api/v1/captions/#{ex.message}"
rescue ex
halt env, status_code: 500
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.escape(caption.name.simpleText)}"
end
end
end
end
end
end
next response
end
env.response.content_type = "text/vtt"
caption = captions.select { |caption| caption.name.simpleText == label }
if lang
caption = captions.select { |caption| caption.languageCode == lang }
end
if caption.empty?
halt env, status_code: 404
else
caption = caption[0]
end
caption_xml = client.get(caption.baseUrl + "&tlang=#{tlang}").body
caption_xml = XML.parse(caption_xml)
webvtt = <<-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
webvtt = webvtt + <<-END_CUE
#{start_time} --> #{end_time}
#{text}
END_CUE
end
webvtt
end
get "/api/v1/comments/:id" do |env|
env.response.content_type = "application/json"
id = env.params.url["id"]
source = env.params.query["source"]?
source ||= "youtube"
format = env.params.query["format"]?
format ||= "json"
continuation = env.params.query["continuation"]?
continuation ||= ""
if source == "youtube"
begin
comments = fetch_youtube_comments(id, continuation, proxies, format)
rescue ex
error_message = {"error" => ex.message}.to_json
halt env, status_code: 500, response: error_message
end
if format == "json"
next comments
else
comments = JSON.parse(comments)
content_html = template_youtube_comments(comments)
response = JSON.build do |json|
json.object do
json.field "contentHtml", content_html
if comments["commentCount"]?
json.field "commentCount", comments["commentCount"]
else
json.field "commentCount", 0
end
end
end
next response
end
elsif source == "reddit"
begin
comments, reddit_thread = fetch_reddit_comments(id)
content_html = template_reddit_comments(comments)
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
halt env, status_code: 404
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
next {
"title" => reddit_thread.title,
"permalink" => reddit_thread.permalink,
"contentHtml" => content_html,
}.to_json
end
end
end
get "/api/v1/insights/:id" do |env|
id = env.params.url["id"]
env.response.content_type = "application/json"
client = make_client(YT_URL)
headers = HTTP::Headers.new
html = client.get("/watch?v=#{id}&gl=US&hl=en&disable_polymer=1")
headers["cookie"] = html.cookies.add_request_headers(headers)["cookie"]
headers["content-type"] = "application/x-www-form-urlencoded"
headers["x-client-data"] = "CIi2yQEIpbbJAQipncoBCNedygEIqKPKAQ=="
headers["x-spf-previous"] = "https://www.youtube.com/watch?v=#{id}"
headers["x-spf-referer"] = "https://www.youtube.com/watch?v=#{id}"
headers["x-youtube-client-name"] = "1"
headers["x-youtube-client-version"] = "2.20180719"
body = html.body
session_token = body.match(/'XSRF_TOKEN': "(?[A-Za-z0-9\_\-\=]+)"/).not_nil!["session_token"]
post_req = {
"session_token" => session_token,
}
post_req = HTTP::Params.encode(post_req)
response = client.post("/insight_ajax?action_get_statistics_and_data=1&v=#{id}", headers, post_req).body
response = XML.parse(response)
html_content = XML.parse_html(response.xpath_node(%q(//html_content)).not_nil!.content)
graph_data = response.xpath_node(%q(//graph_data))
if !graph_data
error = html_content.xpath_node(%q(//p)).not_nil!.content
next {"error" => error}.to_json
end
graph_data = JSON.parse(graph_data.content)
view_count = 0_i64
time_watched = 0_i64
subscriptions_driven = 0
shares = 0
stats_nodes = html_content.xpath_nodes(%q(//table/tr/td))
stats_nodes.each do |node|
key = node.xpath_node(%q(.//span))
value = node.xpath_node(%q(.//div))
if !key || !value
next
end
key = key.content
value = value.content
case key
when "Views"
view_count = value.delete(", ").to_i64
when "Time watched"
time_watched = value
when "Subscriptions driven"
subscriptions_driven = value.delete(", ").to_i
when "Shares"
shares = value.delete(", ").to_i
end
end
avg_view_duration_seconds = html_content.xpath_node(%q(//div[@id="stats-chart-tab-watch-time"]/span/span[2])).not_nil!.content
avg_view_duration_seconds = decode_length_seconds(avg_view_duration_seconds)
{
"viewCount" => view_count,
"timeWatchedText" => time_watched,
"subscriptionsDriven" => subscriptions_driven,
"shares" => shares,
"avgViewDurationSeconds" => avg_view_duration_seconds,
"graphData" => graph_data,
}.to_json
end
get "/api/v1/videos/:id" do |env|
env.response.content_type = "application/json"
id = env.params.url["id"]
begin
video = get_video(id, PG_DB, proxies)
rescue ex : VideoRedirect
next env.redirect "/api/v1/videos/#{ex.message}"
rescue ex
error_message = {"error" => ex.message}.to_json
halt env, status_code: 500, response: error_message
end
fmt_stream = video.fmt_stream(decrypt_function)
adaptive_fmts = video.adaptive_fmts(decrypt_function)
captions = video.captions
video_info = JSON.build do |json|
json.object do
json.field "title", video.title
json.field "videoId", video.id
json.field "videoThumbnails" do
generate_thumbnails(json, video.id)
end
video.description, description = html_to_content(video.description)
json.field "description", description
json.field "descriptionHtml", video.description
json.field "published", video.published.to_unix
json.field "publishedText", "#{recode_date(video.published)} ago"
json.field "keywords", video.keywords
json.field "viewCount", video.views
json.field "likeCount", video.likes
json.field "dislikeCount", video.dislikes
json.field "paid", video.paid
json.field "premium", video.premium
json.field "isFamilyFriendly", video.is_family_friendly
json.field "allowedRegions", video.allowed_regions
json.field "genre", video.genre
json.field "genreUrl", video.genre_url
json.field "author", video.author
json.field "authorId", video.ucid
json.field "authorUrl", "/channel/#{video.ucid}"
json.field "authorThumbnails" do
json.array do
qualities = [32, 48, 76, 100, 176, 512]
qualities.each do |quality|
json.object do
json.field "url", video.author_thumbnail.gsub("=s48-", "=s#{quality}-")
json.field "width", quality
json.field "height", quality
end
end
end
end
json.field "subCountText", video.sub_count_text
json.field "lengthSeconds", video.info["length_seconds"].to_i
if video.info["allow_ratings"]?
json.field "allowRatings", video.info["allow_ratings"] == "1"
else
json.field "allowRatings", false
end
json.field "rating", video.info["avg_rating"].to_f32
if video.info["is_listed"]?
json.field "isListed", video.info["is_listed"] == "1"
end
if video.info["hlsvp"]?
host_url = make_host_url(Kemal.config.ssl || CONFIG.https_only, env.request.headers["Host"]?)
host_params = env.request.query_params
host_params.delete_all("v")
hlsvp = video.info["hlsvp"]
hlsvp = hlsvp.gsub("https://manifest.googlevideo.com", host_url)
json.field "hlsUrl", hlsvp
end
json.field "adaptiveFormats" do
json.array do
adaptive_fmts.each do |fmt|
json.object do
json.field "index", fmt["index"]
json.field "bitrate", fmt["bitrate"]
json.field "init", fmt["init"]
json.field "url", fmt["url"]
json.field "itag", fmt["itag"]
json.field "type", fmt["type"]
json.field "clen", fmt["clen"]
json.field "lmt", fmt["lmt"]
json.field "projectionType", fmt["projection_type"]
fmt_info = itag_to_metadata?(fmt["itag"])
if fmt_info
fps = fmt_info["fps"]?.try &.to_i || fmt["fps"]?.try &.to_i || 30
json.field "fps", fps
json.field "container", fmt_info["ext"]
json.field "encoding", fmt_info["vcodec"]? || fmt_info["acodec"]
if fmt_info["height"]?
json.field "resolution", "#{fmt_info["height"]}p"
quality_label = "#{fmt_info["height"]}p"
if fps > 30
quality_label += "60"
end
json.field "qualityLabel", quality_label
if fmt_info["width"]?
json.field "size", "#{fmt_info["width"]}x#{fmt_info["height"]}"
end
end
end
end
end
end
end
json.field "formatStreams" do
json.array do
fmt_stream.each do |fmt|
json.object do
json.field "url", fmt["url"]
json.field "itag", fmt["itag"]
json.field "type", fmt["type"]
json.field "quality", fmt["quality"]
fmt_info = itag_to_metadata?(fmt["itag"])
if fmt_info
fps = fmt_info["fps"]?.try &.to_i || fmt["fps"]?.try &.to_i || 30
json.field "fps", fps
json.field "container", fmt_info["ext"]
json.field "encoding", fmt_info["vcodec"]? || fmt_info["acodec"]
if fmt_info["height"]?
json.field "resolution", "#{fmt_info["height"]}p"
quality_label = "#{fmt_info["height"]}p"
if fps > 30
quality_label += "60"
end
json.field "qualityLabel", quality_label
if fmt_info["width"]?
json.field "size", "#{fmt_info["width"]}x#{fmt_info["height"]}"
end
end
end
end
end
end
end
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.escape(caption.name.simpleText)}"
end
end
end
end
json.field "recommendedVideos" do
json.array do
video.info["rvs"]?.try &.split(",").each do |rv|
rv = HTTP::Params.parse(rv)
if rv["id"]?
json.object do
json.field "videoId", rv["id"]
json.field "title", rv["title"]
json.field "videoThumbnails" do
generate_thumbnails(json, rv["id"])
end
json.field "author", rv["author"]
json.field "lengthSeconds", rv["length_seconds"].to_i
json.field "viewCountText", rv["short_view_count_text"]
end
end
end
end
end
end
end
video_info
end
get "/api/v1/trending" do |env|
client = make_client(YT_URL)
trending = client.get("/feed/trending?disable_polymer=1").body
trending = XML.parse_html(trending)
videos = JSON.build do |json|
json.array do
nodeset = trending.xpath_nodes(%q(//ul/li[@class="expanded-shelf-content-item-wrapper"]))
extract_videos(nodeset).each do |video|
json.object do
json.field "title", video.title
json.field "videoId", video.id
json.field "videoThumbnails" do
generate_thumbnails(json, video.id)
end
json.field "lengthSeconds", video.length_seconds
json.field "viewCount", video.views
json.field "author", video.author
json.field "authorId", video.ucid
json.field "authorUrl", "/channel/#{video.ucid}"
json.field "published", video.published.to_unix
json.field "publishedText", "#{recode_date(video.published)} ago"
json.field "description", video.description
json.field "descriptionHtml", video.description_html
end
end
end
end
env.response.content_type = "application/json"
videos
end
get "/api/v1/top" do |env|
videos = JSON.build do |json|
json.array do
top_videos.each do |video|
json.object do
json.field "title", video.title
json.field "videoId", video.id
json.field "videoThumbnails" do
generate_thumbnails(json, video.id)
end
json.field "lengthSeconds", video.info["length_seconds"].to_i
json.field "viewCount", video.views
json.field "author", video.author
json.field "authorId", video.ucid
json.field "authorUrl", "/channel/#{video.ucid}"
json.field "published", video.published.to_unix
json.field "publishedText", "#{recode_date(video.published)} ago"
description = video.description.gsub("
", "\n")
description = description.gsub("
", "\n")
description = XML.parse_html(description)
json.field "description", description.content
json.field "descriptionHtml", video.description
end
end
end
end
env.response.content_type = "application/json"
videos
end
get "/api/v1/channels/:ucid" do |env|
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
begin
author, ucid, auto_generated = get_about_info(ucid)
rescue ex
error_message = {"error" => ex.message}.to_json
halt env, status_code: 500, response: error_message
end
page = 1
videos, count = get_60_videos(ucid, page, auto_generated)
client = make_client(YT_URL)
channel_html = client.get("/channel/#{ucid}/about?disable_polymer=1").body
channel_html = XML.parse_html(channel_html)
banner = channel_html.xpath_node(%q(//div[@id="gh-banner"]/style)).not_nil!.content
banner = "https:" + banner.match(/background-image: url\((?[^)]+)\)/).not_nil!["url"]
author = channel_html.xpath_node(%q(//a[contains(@class, "branded-page-header-title-link")])).not_nil!.content
author_url = channel_html.xpath_node(%q(//a[@class="channel-header-profile-image-container spf-link"])).not_nil!["href"]
author_thumbnail = channel_html.xpath_node(%q(//img[@class="channel-header-profile-image"])).not_nil!["src"]
description_html = channel_html.xpath_node(%q(//div[contains(@class,"about-description")]))
description_html, description = html_to_content(description_html)
paid = channel_html.xpath_node(%q(//meta[@itemprop="paid"])).not_nil!["content"] == "True"
is_family_friendly = channel_html.xpath_node(%q(//meta[@itemprop="isFamilyFriendly"])).not_nil!["content"] == "True"
allowed_regions = channel_html.xpath_node(%q(//meta[@itemprop="regionsAllowed"])).not_nil!["content"].split(",")
total_views = 0_i64
sub_count = 0_i64
joined = Time.unix(0)
metadata = channel_html.xpath_nodes(%q(//span[@class="about-stat"]))
metadata.each do |item|
case item.content
when .includes? "views"
total_views = item.content.delete("views •,").to_i64
when .includes? "subscribers"
sub_count = item.content.delete("subscribers").delete(",").to_i64
when .includes? "Joined"
joined = Time.parse(item.content.lchop("Joined "), "%b %-d, %Y", Time::Location.local)
end
end
channel_info = JSON.build do |json|
json.object do
json.field "author", author
json.field "authorId", ucid
json.field "authorUrl", author_url
json.field "authorBanners" do
json.array do
qualities = [{width: 2560, height: 424},
{width: 2120, height: 351},
{width: 1060, height: 175}]
qualities.each do |quality|
json.object do
json.field "url", banner.gsub("=w1060", "=w#{quality[:width]}")
json.field "width", quality[:width]
json.field "height", quality[:height]
end
end
json.object do
json.field "url", banner.rchop("=w1060-fcrop64=1,00005a57ffffa5a8-nd-c0xffffffff-rj-k-no")
json.field "width", 512
json.field "height", 288
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", author_thumbnail.gsub("/s100-", "/s#{quality}-")
json.field "width", quality
json.field "height", quality
end
end
end
end
json.field "subCount", sub_count
json.field "totalViews", total_views
json.field "joined", joined.to_unix
json.field "paid", paid
json.field "isFamilyFriendly", is_family_friendly
json.field "description", description
json.field "descriptionHtml", description_html
json.field "allowedRegions", allowed_regions
json.field "latestVideos" do
json.array do
videos.each do |video|
json.object do
json.field "title", video.title
json.field "videoId", video.id
if auto_generated
json.field "author", video.author
json.field "authorId", video.ucid
json.field "authorUrl", "/channel/#{video.ucid}"
else
json.field "author", author
json.field "authorId", ucid
json.field "authorUrl", "/channel/#{ucid}"
end
json.field "videoThumbnails" do
generate_thumbnails(json, video.id)
end
json.field "description", video.description
json.field "descriptionHtml", video.description_html
json.field "viewCount", video.views
json.field "published", video.published.to_unix
json.field "publishedText", "#{recode_date(video.published)} ago"
json.field "lengthSeconds", video.length_seconds
json.field "liveNow", video.live_now
json.field "paid", video.paid
json.field "premium", video.premium
end
end
end
end
end
end
channel_info
end
["/api/v1/channels/:ucid/videos", "/api/v1/channels/videos/:ucid"].each do |route|
get route do |env|
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
page = env.params.query["page"]?.try &.to_i?
page ||= 1
begin
author, ucid, auto_generated = get_about_info(ucid)
rescue ex
error_message = {"error" => ex.message}.to_json
halt env, status_code: 500, response: error_message
end
videos, count = get_60_videos(ucid, page, auto_generated)
result = JSON.build do |json|
json.array do
videos.each do |video|
json.object do
json.field "title", video.title
json.field "videoId", video.id
if auto_generated
json.field "author", video.author
json.field "authorId", video.ucid
json.field "authorUrl", "/channel/#{video.ucid}"
else
json.field "author", author
json.field "authorId", ucid
json.field "authorUrl", "/channel/#{ucid}"
end
json.field "videoThumbnails" do
generate_thumbnails(json, video.id)
end
json.field "description", video.description
json.field "descriptionHtml", video.description_html
json.field "viewCount", video.views
json.field "published", video.published.to_unix
json.field "publishedText", "#{recode_date(video.published)} ago"
json.field "lengthSeconds", video.length_seconds
json.field "liveNow", video.live_now
json.field "paid", video.paid
json.field "premium", video.premium
end
end
end
end
result
end
end
get "/api/v1/channels/search/:ucid" do |env|
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)
response = JSON.build do |json|
json.array do
search_results.each do |item|
json.object do
case item
when SearchVideo
json.field "type", "video"
json.field "title", item.title
json.field "videoId", item.id
json.field "author", item.author
json.field "authorId", item.ucid
json.field "authorUrl", "/channel/#{item.ucid}"
json.field "videoThumbnails" do
generate_thumbnails(json, item.id)
end
json.field "description", item.description
json.field "descriptionHtml", item.description_html
json.field "viewCount", item.views
json.field "published", item.published.to_unix
json.field "publishedText", "#{recode_date(item.published)} ago"
json.field "lengthSeconds", item.length_seconds
json.field "liveNow", item.live_now
json.field "paid", item.paid
json.field "premium", item.premium
when SearchPlaylist
json.field "type", "playlist"
json.field "title", item.title
json.field "playlistId", item.id
json.field "author", item.author
json.field "authorId", item.ucid
json.field "authorUrl", "/channel/#{item.ucid}"
json.field "videoCount", item.video_count
json.field "videos" do
json.array do
item.videos.each do |video|
json.object do
json.field "title", video.title
json.field "videoId", video.id
json.field "lengthSeconds", video.length_seconds
json.field "videoThumbnails" do
generate_thumbnails(json, video.id)
end
end
end
end
end
when SearchChannel
json.field "type", "channel"
json.field "author", item.author
json.field "authorId", item.ucid
json.field "authorUrl", "/channel/#{item.ucid}"
json.field "authorThumbnails" do
json.array do
qualities = [32, 48, 76, 100, 176, 512]
qualities.each do |quality|
json.object do
json.field "url", item.author_thumbnail.gsub("=s176-", "=s#{quality}-")
json.field "width", quality
json.field "height", quality
end
end
end
end
json.field "subCount", item.subscriber_count
json.field "videoCount", item.video_count
json.field "description", item.description
json.field "descriptionHtml", item.description_html
end
end
end
end
end
response
end
get "/api/v1/search" do |env|
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["date"]?.try &.downcase
duration ||= ""
features = env.params.query["features"]?.try &.split(",").map { |feature| feature.downcase }
features ||= [] of String
# TODO: Support other content types
content_type = env.params.query["type"]?.try &.downcase
content_type ||= "video"
begin
search_params = produce_search_params(sort_by, date, content_type, duration, features)
rescue ex
env.response.status_code = 400
next JSON.build do |json|
json.object do
json.field "error", ex.message
end
end
end
count, search_results = search(query, page, search_params).as(Tuple)
response = JSON.build do |json|
json.array do
search_results.each do |item|
json.object do
case item
when SearchVideo
json.field "type", "video"
json.field "title", item.title
json.field "videoId", item.id
json.field "author", item.author
json.field "authorId", item.ucid
json.field "authorUrl", "/channel/#{item.ucid}"
json.field "videoThumbnails" do
generate_thumbnails(json, item.id)
end
json.field "description", item.description
json.field "descriptionHtml", item.description_html
json.field "viewCount", item.views
json.field "published", item.published.to_unix
json.field "publishedText", "#{recode_date(item.published)} ago"
json.field "lengthSeconds", item.length_seconds
json.field "liveNow", item.live_now
json.field "paid", item.paid
json.field "premium", item.premium
when SearchPlaylist
json.field "type", "playlist"
json.field "title", item.title
json.field "playlistId", item.id
json.field "author", item.author
json.field "authorId", item.ucid
json.field "authorUrl", "/channel/#{item.ucid}"
json.field "videoCount", item.video_count
json.field "videos" do
json.array do
item.videos.each do |video|
json.object do
json.field "title", video.title
json.field "videoId", video.id
json.field "lengthSeconds", video.length_seconds
json.field "videoThumbnails" do
generate_thumbnails(json, video.id)
end
end
end
end
end
when SearchChannel
json.field "type", "channel"
json.field "author", item.author
json.field "authorId", item.ucid
json.field "authorUrl", "/channel/#{item.ucid}"
json.field "authorThumbnails" do
json.array do
qualities = [32, 48, 76, 100, 176, 512]
qualities.each do |quality|
json.object do
json.field "url", item.author_thumbnail.gsub("=s176-", "=s#{quality}-")
json.field "width", quality
json.field "height", quality
end
end
end
end
json.field "subCount", item.subscriber_count
json.field "videoCount", item.video_count
json.field "description", item.description
json.field "descriptionHtml", item.description_html
end
end
end
end
end
response
end
get "/api/v1/playlists/:plid" do |env|
env.response.content_type = "application/json"
plid = env.params.url["plid"]
page = env.params.query["page"]?.try &.to_i?
page ||= 1
format = env.params.query["format"]?
format ||= "json"
continuation = env.params.query["continuation"]?
if plid.starts_with? "RD"
next env.redirect "/api/v1/mixes/#{plid}"
end
begin
playlist = fetch_playlist(plid)
rescue ex
error_message = {"error" => "Playlist is empty"}.to_json
halt env, status_code: 500, response: error_message
end
begin
videos = fetch_playlist_videos(plid, page, playlist.video_count, continuation)
rescue ex
videos = [] of PlaylistVideo
end
response = JSON.build do |json|
json.object do
json.field "title", playlist.title
json.field "playlistId", playlist.id
json.field "author", playlist.author
json.field "authorId", playlist.ucid
json.field "authorUrl", "/channel/#{playlist.ucid}"
json.field "authorThumbnails" do
json.array do
qualities = [32, 48, 76, 100, 176, 512]
qualities.each do |quality|
json.object do
json.field "url", playlist.author_thumbnail.gsub("=s100-", "=s#{quality}-")
json.field "width", quality
json.field "height", quality
end
end
end
end
json.field "description", playlist.description
json.field "descriptionHtml", playlist.description_html
json.field "videoCount", playlist.video_count
json.field "viewCount", playlist.views
json.field "updated", playlist.updated.to_unix
json.field "videos" do
json.array do
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
generate_thumbnails(json, video.id)
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_playlist(response)
next_video = response["videos"].as_a[1]?.try &.["videoId"]
response = {
"playlistHtml" => playlist_html,
"nextVideo" => next_video,
}.to_json
end
response
end
get "/api/v1/mixes/:rdid" do |env|
env.response.content_type = "application/json"
rdid = env.params.url["rdid"]
continuation = env.params.query["continuation"]?
continuation ||= rdid.lchop("RD")
format = env.params.query["format"]?
format ||= "json"
begin
mix = fetch_mix(rdid, continuation)
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
index ||= 0
mix.videos = mix.videos[index..-1]
rescue ex
error_message = {"error" => ex.message}.to_json
halt env, status_code: 500, response: error_message
end
response = JSON.build do |json|
json.object do
json.field "title", mix.title
json.field "mixId", mix.id
json.field "videos" do
json.array do
mix.videos.each do |video|
json.object do
json.field "title", video.title
json.field "videoId", video.id
json.field "author", video.author
json.field "authorId", video.ucid
json.field "authorUrl", "/channel/#{video.ucid}"
json.field "videoThumbnails" do
json.array do
generate_thumbnails(json, video.id)
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[1]?.try &.["videoId"]
next_video ||= ""
response = {
"playlistHtml" => playlist_html,
"nextVideo" => next_video,
}.to_json
end
response
end
get "/api/manifest/dash/id/videoplayback" do |env|
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["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"]
client = make_client(YT_URL)
begin
video = get_video(id, PG_DB, proxies)
rescue ex : VideoRedirect
next env.redirect "/api/manifest/dash/id/#{ex.message}"
rescue ex
halt env, status_code: 403
end
if video.info["dashmpd"]?
manifest = client.get(video.info["dashmpd"]).body
manifest = manifest.gsub(/[^<]+<\/BaseURL>/) do |baseurl|
url = baseurl.lchop("")
url = url.rchop("")
if local
url = URI.parse(url).full_path.lchop("/")
end
"#{url}"
end
next manifest
end
adaptive_fmts = video.adaptive_fmts(decrypt_function)
if local
adaptive_fmts.each do |fmt|
fmt["url"] = URI.parse(fmt["url"]).full_path.lchop("/")
end
end
video_streams = video.video_streams(adaptive_fmts).select { |stream| stream["type"].starts_with? "video/mp4" }
audio_streams = video.audio_streams(adaptive_fmts).select { |stream| stream["type"].starts_with? "audio/mp4" }
manifest = XML.build(indent: " ", encoding: "UTF-8") do |xml|
xml.element("MPD", "xmlns": "urn:mpeg:dash:schema:mpd:2011",
"profiles": "urn:mpeg:dash:profile:isoff-live:2011", minBufferTime: "PT1.5S", type: "static",
mediaPresentationDuration: "PT#{video.info["length_seconds"]}S") do
xml.element("Period") do
xml.element("AdaptationSet", mimeType: "audio/mp4", startWithSAP: 1, subsegmentAlignment: true) do
audio_streams.each do |fmt|
mimetype = fmt["type"].split(";")[0]
codecs = fmt["type"].split("codecs=")[1].strip('"')
fmt_type = mimetype.split("/")[0]
bandwidth = fmt["bitrate"]
itag = fmt["itag"]
url = fmt["url"]
xml.element("Representation", id: fmt["itag"], codecs: codecs, bandwidth: bandwidth) do
xml.element("AudioChannelConfiguration", schemeIdUri: "urn:mpeg:dash:23003:3:audio_channel_configuration:2011",
value: "2")
xml.element("BaseURL") { xml.text url }
xml.element("SegmentBase", indexRange: fmt["index"]) do
xml.element("Initialization", range: fmt["init"])
end
end
end
end
xml.element("AdaptationSet", mimeType: "video/mp4", startWithSAP: 1, subsegmentAlignment: true,
scanType: "progressive") do
video_streams.each do |fmt|
mimetype = fmt["type"].split(";")
codecs = fmt["type"].split("codecs=")[1].strip('"')
bandwidth = fmt["bitrate"]
itag = fmt["itag"]
url = fmt["url"]
height, width = fmt["size"].split("x")
xml.element("Representation", id: itag, codecs: codecs, width: width, height: height,
startWithSAP: "1", maxPlayoutRate: "1",
bandwidth: bandwidth, frameRate: fmt["fps"]) do
xml.element("BaseURL") { xml.text url }
xml.element("SegmentBase", indexRange: fmt["index"]) do
xml.element("Initialization", range: fmt["init"])
end
end
end
end
end
end
end
manifest = manifest.gsub(%(), %())
manifest = manifest.gsub(%(), %())
manifest
end
get "/api/manifest/hls_variant/*" do |env|
client = make_client(YT_URL)
manifest = client.get(env.request.path)
if manifest.status_code != 200
halt env, status_code: manifest.status_code
end
env.response.content_type = "application/x-mpegURL"
env.response.headers.add("Access-Control-Allow-Origin", "*")
host_url = make_host_url(Kemal.config.ssl || CONFIG.https_only, env.request.headers["Host"])
manifest = manifest.body
manifest.gsub("https://www.youtube.com", host_url)
end
get "/api/manifest/hls_playlist/*" do |env|
client = make_client(YT_URL)
manifest = client.get(env.request.path)
if manifest.status_code != 200
halt env, status_code: manifest.status_code
end
host_url = make_host_url(Kemal.config.ssl || CONFIG.https_only, env.request.headers["Host"])
manifest = manifest.body.gsub("https://www.youtube.com", host_url)
manifest = manifest.gsub(/https:\/\/r\d---.{11}\.c\.youtube\.com/, host_url)
fvip = manifest.match(/hls_chunk_host\/r(?\d)---/).not_nil!["fvip"]
manifest = manifest.gsub("seg.ts", "seg.ts/fvip/#{fvip}")
env.response.content_type = "application/x-mpegURL"
env.response.headers.add("Access-Control-Allow-Origin", "*")
manifest
end
options "/videoplayback" 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
options "/videoplayback/*" 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
options "/api/manifest/dash/id/videoplayback" 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
options "/api/manifest/dash/id/videoplayback/*" 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 "/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.unescape(value)
if raw_params[key]?
raw_params[key] << value
else
raw_params[key] = [value]
end
end
query_params = HTTP::Params.new(raw_params)
env.response.headers["Access-Control-Allow-Origin"] = "*"
env.redirect "/videoplayback?#{query_params}"
end
get "/videoplayback" do |env|
query_params = env.params.query
fvip = query_params["fvip"]
mn = query_params["mn"].split(",")[-1]
host = "https://r#{fvip}---#{mn}.googlevideo.com"
url = "/videoplayback?#{query_params.to_s}"
if query_params["region"]?
client = make_client(URI.parse(host))
response = HTTP::Client::Response.new(status_code: 403)
if !proxies[query_params["region"]]?
halt env, status_code: 403
end
proxies[query_params["region"]].each do |proxy|
begin
client = HTTPClient.new(URI.parse(host))
client.read_timeout = 10.seconds
client.connect_timeout = 10.seconds
proxy = HTTPProxy.new(proxy_host: proxy[:ip], proxy_port: proxy[:port])
client.set_proxy(proxy)
response = client.head(url)
if response.status_code == 200
# For whatever reason the proxy needs to be set again
client.set_proxy(proxy)
break
end
rescue ex
end
end
else
client = make_client(URI.parse(host))
response = client.head(url)
end
if response.status_code != 200
halt env, status_code: 403
end
if response.headers["Location"]?
url = URI.parse(response.headers["Location"])
env.response.headers["Access-Control-Allow-Origin"] = "*"
next env.redirect url.full_path
end
headers = env.request.headers
headers.delete("Host")
headers.delete("Cookie")
headers.delete("User-Agent")
headers.delete("Referer")
client.get(url, headers) do |response|
env.response.status_code = response.status_code
response.headers.each do |key, value|
env.response.headers[key] = value
end
env.response.headers["Access-Control-Allow-Origin"] = "*"
begin
chunk_size = 4096
size = 1
while size > 0
size = IO.copy(response.body_io, env.response.output, chunk_size)
env.response.flush
Fiber.yield
end
rescue ex
break
end
end
end
get "/ggpht*" do |env|
end
get "/ggpht/*" do |env|
host = "https://yt3.ggpht.com"
client = make_client(URI.parse(host))
url = env.request.path.lchop("/ggpht")
headers = env.request.headers
headers.delete("Host")
headers.delete("Cookie")
headers.delete("User-Agent")
headers.delete("Referer")
client.get(url, headers) do |response|
env.response.status_code = response.status_code
response.headers.each do |key, value|
env.response.headers[key] = value
end
if response.status_code == 304
break
end
chunk_size = 4096
size = 1
if response.headers.includes_word?("Content-Encoding", "gzip")
Gzip::Writer.open(env.response) do |deflate|
until size == 0
size = IO.copy(response.body_io, deflate)
env.response.flush
end
end
elsif response.headers.includes_word?("Content-Encoding", "deflate")
Flate::Writer.open(env.response) do |deflate|
until size == 0
size = IO.copy(response.body_io, deflate)
env.response.flush
end
end
else
until size == 0
size = IO.copy(response.body_io, env.response, chunk_size)
env.response.flush
end
end
end
end
get "/vi/:id/:name" do |env|
id = env.params.url["id"]
name = env.params.url["name"]
host = "https://i.ytimg.com"
client = make_client(URI.parse(host))
if name == "maxres.jpg"
VIDEO_THUMBNAILS.each do |thumb|
if client.head("/vi/#{id}/#{thumb[:url]}.jpg").status_code == 200
name = thumb[:url] + ".jpg"
break
end
end
end
url = "/vi/#{id}/#{name}"
headers = env.request.headers
headers.delete("Host")
headers.delete("Cookie")
headers.delete("User-Agent")
headers.delete("Referer")
client.get(url, headers) do |response|
env.response.status_code = response.status_code
response.headers.each do |key, value|
env.response.headers[key] = value
end
if response.status_code == 304
break
end
chunk_size = 4096
size = 1
if response.headers.includes_word?("Content-Encoding", "gzip")
Gzip::Writer.open(env.response) do |deflate|
until size == 0
size = IO.copy(response.body_io, deflate)
env.response.flush
end
end
elsif response.headers.includes_word?("Content-Encoding", "deflate")
Flate::Writer.open(env.response) do |deflate|
until size == 0
size = IO.copy(response.body_io, deflate)
env.response.flush
end
end
else
until size == 0
size = IO.copy(response.body_io, env.response, chunk_size)
env.response.flush
end
end
end
end
error 404 do |env|
if md = env.request.path.match(/^\/(?[a-zA-Z0-9_-]{11})/)
id = md["id"]
params = [] of String
env.params.query.each do |k, v|
params << "#{k}=#{v}"
end
params = params.join("&")
url = "/watch?v=#{id}"
if !params.empty?
url += "&#{params}"
end
env.response.headers["Location"] = url
halt env, status_code: 302
end
error_message = "404 Page not found"
templated "error"
end
error 500 do |env|
error_message = "500 Server error"
templated "error"
end
# Add redirect if SSL is enabled
if Kemal.config.ssl
spawn do
server = HTTP::Server.new do |context|
redirect_url = "https://#{context.request.host}#{context.request.path}"
if context.request.query
redirect_url += "?#{context.request.query}"
end
context.response.headers.add("Location", redirect_url)
context.response.status_code = 301
end
server.bind_tcp "0.0.0.0", 80
server.listen
end
end
static_headers do |response, filepath, filestat|
response.headers.add("Cache-Control", "max-age=86400")
end
public_folder "assets"
Kemal.config.powered_by_header = false
add_handler FilteredCompressHandler.new
add_handler DenyFrame.new
add_context_storage_type(User)
Kemal.run