283 lines
6.9 KiB
Crystal
283 lines
6.9 KiB
Crystal
# "Invidious" (which indexes popular video sites)
|
|
# 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 <http://www.gnu.org/licenses/>.
|
|
|
|
require "kemal"
|
|
require "option_parser"
|
|
require "pg"
|
|
require "xml"
|
|
require "./helpers"
|
|
|
|
threads = 10
|
|
|
|
Kemal.config.extra_options do |parser|
|
|
parser.banner = "Usage: invidious [arguments]"
|
|
parser.on("-t THREADS", "--threads=THREADS", "Number of threads for crawling (default: 10)") do |number|
|
|
begin
|
|
threads = number.to_i32
|
|
rescue ex
|
|
puts "THREADS must be integer"
|
|
exit
|
|
end
|
|
end
|
|
end
|
|
|
|
Kemal::CLI.new
|
|
|
|
PG_DB = DB.open "postgres://kemal:kemal@localhost:5432/invidious"
|
|
URL = URI.parse("https://www.youtube.com")
|
|
CONTEXT = OpenSSL::SSL::Context::Client.new
|
|
CONTEXT.verify_mode = OpenSSL::SSL::VerifyMode::NONE
|
|
CONTEXT.add_options(
|
|
OpenSSL::SSL::Options::ALL |
|
|
OpenSSL::SSL::Options::NO_SSL_V2 |
|
|
OpenSSL::SSL::Options::NO_SSL_V3
|
|
)
|
|
pool = Deque.new((threads * 1.2 + 1).to_i) do
|
|
make_client(URL, CONTEXT)
|
|
end
|
|
|
|
# Refresh pool by crawling YT
|
|
threads.times do
|
|
spawn do
|
|
io = STDOUT
|
|
ids = Deque(String).new
|
|
random = Random.new
|
|
client = get_client(pool)
|
|
|
|
search(random.base64(3), client) do |id|
|
|
ids << id
|
|
end
|
|
|
|
pool << client
|
|
|
|
loop do
|
|
client = get_client(pool)
|
|
|
|
if ids.empty?
|
|
search(random.base64(3), client) do |id|
|
|
ids << id
|
|
end
|
|
end
|
|
|
|
if rand(300) < 1
|
|
pool << make_client(URL, CONTEXT)
|
|
client = get_client(pool)
|
|
end
|
|
|
|
begin
|
|
id = ids[0]
|
|
video = get_video(id, client, PG_DB)
|
|
rescue ex
|
|
io << id << " : " << ex << "\n"
|
|
pool << make_client(URL, CONTEXT)
|
|
next
|
|
ensure
|
|
ids.delete(id)
|
|
end
|
|
|
|
rvs = [] of Hash(String, String)
|
|
if video.info.has_key?("rvs")
|
|
video.info["rvs"].split(",").each do |rv|
|
|
rvs << HTTP::Params.parse(rv).to_h
|
|
end
|
|
end
|
|
|
|
rvs.each do |rv|
|
|
if rv.has_key?("id") && !PG_DB.query_one?("SELECT EXISTS (SELECT true FROM videos WHERE id = $1)", rv["id"], as: Bool)
|
|
ids.delete(id)
|
|
ids << rv["id"]
|
|
if ids.size == 150
|
|
ids.shift
|
|
end
|
|
end
|
|
end
|
|
|
|
pool << client
|
|
end
|
|
end
|
|
end
|
|
|
|
top_videos = [] of Video
|
|
|
|
spawn do
|
|
loop do
|
|
top = rank_videos(PG_DB, 40)
|
|
client = get_client(pool)
|
|
|
|
args = [] of String
|
|
1..(top.size - 1).times { |i| args << "($#{i + 1}), " }
|
|
args << "($#{top.size}) "
|
|
args = args.join("")
|
|
|
|
videos = [] of Video
|
|
|
|
PG_DB.query("SELECT * FROM videos d INNER JOIN (VALUES #{args}) v(id) USING (id)", top) do |rs|
|
|
rs.each do
|
|
video = rs.read(Video)
|
|
videos << video
|
|
end
|
|
end
|
|
|
|
top_videos = videos
|
|
|
|
pool << client
|
|
end
|
|
end
|
|
|
|
macro templated(filename)
|
|
render "src/views/#{{{filename}}}.ecr", "src/views/layout.ecr"
|
|
end
|
|
|
|
get "/" do |env|
|
|
templated "index"
|
|
end
|
|
|
|
get "/watch" do |env|
|
|
id = env.params.query["v"]
|
|
listen = env.params.query["listen"]? || "false"
|
|
|
|
env.params.query.delete_all("listen")
|
|
|
|
client = get_client(pool)
|
|
begin
|
|
video = get_video(id, client, PG_DB)
|
|
rescue ex
|
|
error_message = ex.message
|
|
next templated "error"
|
|
end
|
|
|
|
fmt_stream = [] of HTTP::Params
|
|
video.info["url_encoded_fmt_stream_map"].split(",") do |string|
|
|
fmt_stream << HTTP::Params.parse(string)
|
|
end
|
|
|
|
if fmt_stream[0]?
|
|
if fmt_stream[0]["s"]?
|
|
fmt_stream.each do |fmt|
|
|
fmt["url"] = "#{fmt["url"]}&signature=#{decrypt_signature(fmt["s"])}"
|
|
end
|
|
end
|
|
end
|
|
|
|
# We want lowest quality first
|
|
fmt_stream.reverse!
|
|
|
|
adaptive_fmts = [] of HTTP::Params
|
|
if video.info.has_key?("adaptive_fmts")
|
|
video.info["adaptive_fmts"].split(",") do |string|
|
|
adaptive_fmts << HTTP::Params.parse(string)
|
|
end
|
|
end
|
|
|
|
if adaptive_fmts[0]?
|
|
if adaptive_fmts[0]["s"]?
|
|
adaptive_fmts.each do |fmt|
|
|
fmt["url"] = "#{fmt["url"]}&signature=#{decrypt_signature(fmt["s"])}"
|
|
end
|
|
end
|
|
end
|
|
|
|
rvs = [] of Hash(String, String)
|
|
if video.info.has_key?("rvs")
|
|
video.info["rvs"].split(",").each do |rv|
|
|
rvs << HTTP::Params.parse(rv).to_h
|
|
end
|
|
end
|
|
|
|
player_response = JSON.parse(video.info["player_response"])
|
|
|
|
description = video.html.xpath_node(%q(//p[@id="eow-description"]))
|
|
description = description ? description.to_xml : "Could not load description"
|
|
|
|
rating = video.info["avg_rating"].to_f64
|
|
|
|
engagement = ((video.dislikes.to_f + video.likes.to_f)/video.views * 100)
|
|
if video.likes > 0 || video.dislikes > 0
|
|
calculated_rating = (video.likes.to_f/(video.likes.to_f + video.dislikes.to_f) * 4 + 1)
|
|
else
|
|
calculated_rating = 0.0
|
|
end
|
|
|
|
pool << client
|
|
|
|
templated "watch"
|
|
end
|
|
|
|
get "/search" do |env|
|
|
query = env.params.query["q"]
|
|
page = env.params.query["page"]? && env.params.query["page"].to_i? ? env.params.query["page"].to_i : 1
|
|
|
|
client = get_client(pool)
|
|
|
|
html = client.get("https://www.youtube.com/results?q=#{URI.escape(query)}&page=#{page}&sp=EgIQAVAU").body
|
|
html = XML.parse_html(html)
|
|
|
|
videos = Array(Hash(String, String)).new
|
|
|
|
html.xpath_nodes(%q(//ol[@class="item-section"]/li)).each do |item|
|
|
root = item.xpath_node(%q(div[contains(@class,"yt-lockup-video")]/div))
|
|
if root
|
|
video = {} of String => String
|
|
|
|
link = root.xpath_node(%q(div[contains(@class,"yt-lockup-thumbnail")]/a/@href))
|
|
if link
|
|
video["link"] = link.content
|
|
else
|
|
video["link"] = "#"
|
|
end
|
|
|
|
title = root.xpath_node(%q(div[@class="yt-lockup-content"]/h3/a))
|
|
if title
|
|
video["title"] = title.content
|
|
else
|
|
video["title"] = "Something went wrong"
|
|
end
|
|
|
|
thumbnail = root.xpath_node(%q(div[contains(@class,"yt-lockup-thumbnail")]/a/div/span/img/@src))
|
|
if thumbnail && !thumbnail.content.ends_with?(".gif")
|
|
video["thumbnail"] = thumbnail.content
|
|
else
|
|
thumbnail = root.xpath_node(%q(div[contains(@class,"yt-lockup-thumbnail")]/a/div/span/img/@data-thumb))
|
|
if thumbnail
|
|
video["thumbnail"] = thumbnail.content
|
|
else
|
|
video["thumbnail"] = "http://via.placeholder.com/246x138"
|
|
end
|
|
end
|
|
|
|
videos << video
|
|
end
|
|
end
|
|
|
|
pool << client
|
|
|
|
templated "search"
|
|
end
|
|
|
|
error 404 do |env|
|
|
error_message = "404 Page not found"
|
|
templated "error"
|
|
end
|
|
|
|
error 500 do |env|
|
|
error_message = "500 Server error"
|
|
templated "error"
|
|
end
|
|
|
|
public_folder "assets"
|
|
|
|
Kemal.run
|