Simple TCP server that can be used as an AGI server for PHP

agi_handler.rb

#!/usr/bin/env ruby

#
# A simple tool to run php-based AGIs
#
# by Eric Lindvall <[email protected]>
#
# Usage: agi_handler.rb 4755 'php php_agi.php'
#

require 'eventmachine'

module DataLogger
  def log(dir, data)
    puts "#{dir} #{data.strip.gsub(/\n/, "\n   ")}"
  end
end

module AgiClient
  include DataLogger

  def initialize(server)
    @server = server
  end

  def receive_data(data)
    log('<-', data)
    @server.send_data(data)
  end


  def unbind
    @server.close_connection_after_writing
  end
end

module AgiServer
  include DataLogger

  def initialize(agi_command)
    @agi_command = agi_command
  end

  def post_init
    @client = EM.popen(@agi_command, AgiClient, self)
  end

  def receive_data(data)
    log('->', data)
    @client.send_data(data)
  end

  def unbind
    @client.close_connection_after_writing
  end
end


unless ARGV[1]
  puts "Usage: #{File.basename($0)} <port> <agi-file>"
  exit 1
end

port, agi_command = *ARGV

EM.run {
  EM.start_server('0.0.0.0', port, AgiServer, agi_command)
}