# frozen_string_literal: true
require 'scgi'
require 'stringio'
module Rack
module Handler
class SCGI < ::SCGI::Processor
attr_accessor :app
def self.run(app, **options)
options[:Socket] = UNIXServer.new(options[:File]) if options[:File]
new(options.merge(app: app,
host: options[:Host],
port: options[:Port],
socket: options[:Socket])).listen
end
def self.valid_options
environment = ENV['RACK_ENV'] || 'development'
default_host = environment == 'development' ? 'localhost' : '0.0.0.0'
{
"Host=HOST" => "Hostname to listen on (default: #{default_host})",
"Port=PORT" => "Port to listen on (default: 8080)",
}
end
def initialize(settings = {})
@app = settings[:app]
super(settings)
end
def process_request(request, input_body, socket)
env = Hash[request]
env.delete "HTTP_CONTENT_TYPE"
env.delete "HTTP_CONTENT_LENGTH"
env[REQUEST_PATH], env[QUERY_STRING] = env["REQUEST_URI"].split('?', 2)
env[HTTP_VERSION] ||= env[SERVER_PROTOCOL]
env[PATH_INFO] = env[REQUEST_PATH]
env[QUERY_STRING] ||= ""
env[SCRIPT_NAME] = ""
rack_input = StringIO.new(input_body)
rack_input.set_encoding(Encoding::BINARY)
env.update(
RACK_VERSION => Rack::VERSION,
RACK_INPUT => rack_input,
RACK_ERRORS => $stderr,
RACK_MULTITHREAD => true,
RACK_MULTIPROCESS => true,
RACK_RUNONCE => false,
RACK_URL_SCHEME => ["yes", "on", "1"].include?(env[HTTPS]) ? "https" : "http"
)
status, headers, body = app.call(env)
begin
socket.write("Status: #{status}\r\n")
headers.each do |k, vs|
vs.split("\n").each { |v| socket.write("#{k}: #{v}\r\n")}
end
socket.write("\r\n")
body.each {|s| socket.write(s)}
ensure
body.close if body.respond_to? :close
end
end
end
end
end
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