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{% unless flag?(:disable_quic) %}
require "lsquic"
alias HTTPClientType = QUIC::Client | HTTP::Client
{% else %}
alias HTTPClientType = HTTP::Client
{% end %}
def add_yt_headers(request)
request.headers["user-agent"] ||= "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36"
request.headers["accept-charset"] ||= "ISO-8859-1,utf-8;q=0.7,*;q=0.7"
request.headers["accept"] ||= "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
request.headers["accept-language"] ||= "en-us,en;q=0.5"
return if request.resource.starts_with? "/sorry/index"
request.headers["x-youtube-client-name"] ||= "1"
request.headers["x-youtube-client-version"] ||= "2.20200609"
# Preserve original cookies and add new YT consent cookie for EU servers
request.headers["cookie"] = "#{request.headers["cookie"]?}; CONSENT=YES+"
if !CONFIG.cookies.empty?
request.headers["cookie"] = "#{(CONFIG.cookies.map { |c| "#{c.name}=#{c.value}" }).join("; ")}; #{request.headers["cookie"]?}"
end
end
struct YoutubeConnectionPool
property! url : URI
property! capacity : Int32
property! timeout : Float64
property pool : DB::Pool(HTTPClientType)
def initialize(url : URI, @capacity = 5, @timeout = 5.0, use_quic = true)
@url = url
@pool = build_pool(use_quic)
end
def client(region = nil, &block)
if region
conn = make_client(url, region)
response = yield conn
else
conn = pool.checkout
begin
response = yield conn
rescue ex
conn.close
{% unless flag?(:disable_quic) %}
conn = CONFIG.use_quic ? QUIC::Client.new(url) : HTTP::Client.new(url)
{% else %}
conn = HTTP::Client.new(url)
{% end %}
conn.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::INET
conn.family = Socket::Family::INET if conn.family == Socket::Family::UNSPEC
conn.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
response = yield conn
ensure
pool.release(conn)
end
end
response
end
private def build_pool(use_quic)
DB::Pool(HTTPClientType).new(initial_pool_size: 0, max_pool_size: capacity, max_idle_pool_size: capacity, checkout_timeout: timeout) do
conn = nil # Declare
{% unless flag?(:disable_quic) %}
if use_quic
conn = QUIC::Client.new(url)
else
conn = HTTP::Client.new(url)
end
{% else %}
conn = HTTP::Client.new(url)
{% end %}
conn.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::INET
conn.family = Socket::Family::INET if conn.family == Socket::Family::UNSPEC
conn.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
conn
end
end
end
def make_client(url : URI, region = nil)
# TODO: Migrate any applicable endpoints to QUIC
client = HTTPClient.new(url, OpenSSL::SSL::Context::Client.insecure)
client.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::UNSPEC
client.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
client.read_timeout = 10.seconds
client.connect_timeout = 10.seconds
if region
PROXY_LIST[region]?.try &.sample(40).each do |proxy|
begin
proxy = HTTPProxy.new(proxy_host: proxy[:ip], proxy_port: proxy[:port])
client.set_proxy(proxy)
break
rescue ex
end
end
end
return client
end
def make_client(url : URI, region = nil, &block)
client = make_client(url, region)
begin
yield client
ensure
client.close
end
end
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