#! /usr/local/bin/ruby

require 'optparse'
require 'gserver'
require 'monitor'
require 'smtpfilter'

$ldebug = false

$appver = '0.1'
$appname = 'ruby-mailfilter'
$appid = "#{$appname} v#{$appver}"

$apphost = '[127.0.0.1]'

class SMTPServer < GServer
	include MonitorMixin
	@@conns = 0
	def SMTPServer.conns()
		@@conns
	end
	def initialize(port = '10025', host = 'localhost')
		super(port, host)
	end
	def serve(client)
		SMTPFilter.new(client)	
	end
	def starting
		puts "Server starting on port #{self.port}"
	end
	def stopping
		puts "Server stopping on port #{self.port}"
	end
	def connecting(client)
		addr = client.peeraddr
		puts "Client connecting from #{addr[2]} <#{addr[3]}> on port #{addr[1]}"
		synchronize do
			@@conns += 1
		end
		true
	end
	def disconnecting(client)
		puts "Client disconnecting from port #{client}"
		synchronize do
			@@conns -= 1
		end
		true
	end
end

# --------------------------------------------------------------------

opts = OptionParser.new
opts.on('--debug', '-d', 'Debug mode') \
	{ |v| $ldebug = true }
opts.on('--fulldebug', '-D', 'Full debug mode') \
	{ |v| $ldebug = true ; $DEBUG = true }
opts.on('--foreground', '-F', 'Foreground mode') \
	{ |v| $FORE = true }
opts.parse(*ARGV)

if(!$FORE) then
	exit if fork
	Process.setsid
	p = fork
	if(p) then
		File.open("/var/run/mailfilter.pid", "w") do |pf|
			pf.puts p
		end
		exit
	end
	Dir.chdir "/"
	$stdin.reopen("/dev/null", "r+")
	File.open(($ldebug ? "/root/ruby/mail/debug.log" : "/dev/null"), "a") do |d|
		$stdout.reopen(d)
		$stderr.reopen(d)
	end
	begin
		$stdout.sync = true
		$stderr.sync = true
	end
end

$s = SMTPServer.new(10025, nil)
$s.audit = true
begin
	$s.start
	$s.join
rescue Exception
end