require 'scgi'
require 'stringio'
require 'rack/content_length'
require 'rack/chunked'
module Rack
module Handler
class SCGI < ::SCGI::Processor
attr_accessor :app
def self.run(app, options=nil)
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) if rack_input.respond_to?(:set_encoding)
env.update({"rack.version" => Rack::VERSION,
"rack.input" => rack_input,
"rack.errors" => $stderr,
"rack.multithread" => true,
"rack.multiprocess" => true,
"rack.run_once" => 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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