invidious/src/visor.cr

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Crystal
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2017-11-23 07:48:55 +00:00
require "kemal"
require "xml"
require "http/client"
require "base64"
macro templated(filename)
render "views/#{{{filename}}}.ecr", "views/layout.ecr"
end
context = OpenSSL::SSL::Context::Client.insecure
client = HTTP::Client.new("www.youtube.com", 443, context)
def params_to_hash(params)
pairs = params.split("&")
hash = Hash(String, String).new
pairs.each do |pair|
key, value = pair.split("=")
hash[key] = URI.unescape(value)
end
return hash
end
get "/" do |env|
templated "index"
end
get "/watch/:video_id" do |env|
video_id = env.params.url["video_id"]
if File.exists?("video_info/#{video_id}")
video_info = JSON.parse(File.open("video_info/#{video_id}"))
else
video_info_encoded = HTTP::Client.get("https://www.youtube.com/get_video_info?video_id=#{video_id}&el=info&ps=default&eurl=&gl=US&hl=en", nil, nil, tls = context).body
video_info = params_to_hash(video_info_encoded)
File.write("video_info/#{video_id}", video_info.to_json)
end
fmt_stream_map = video_info["url_encoded_fmt_stream_map"].to_s.split(",")
fmt_stream = Array(Hash(String, String)).new
fmt_stream_map.each do |fmt|
fmt_stream << params_to_hash(fmt.to_s)
end
fmt_stream.reverse!
templated "watch"
end
get "/listen/:video_id" do |env|
video_id = env.params.url["video_id"]
if File.exists?("video_info/#{video_id}")
video_info = JSON.parse(File.open("video_info/#{video_id}"))
else
video_info_encoded = HTTP::Client.get("https://www.youtube.com/get_video_info?video_id=#{video_id}&el=info&ps=default&eurl=&gl=US&hl=en", nil, nil, tls = context).body
video_info = params_to_hash(video_info_encoded)
File.write("video_info/#{video_id}", video_info.to_json)
end
adaptive_fmt = Array(Hash(String, String)).new
video_info["adaptive_fmts"].to_s.split(",") do |fmt|
adaptive_fmt << params_to_hash(video_info["adaptive_fmts"].to_s)
end
templated "listen"
end
public_folder "assets"
Kemal.run