#!/usr/bin/env python
#
#  Display information about the entries in the greylist.
#
#  Copyright (c) 2004-2005, Sean Reifschneider, tummy.com, ltd.
#  All Rights Reserved
#  <jafo@tummy.com>

import os, re, string, syslog, sys, time
import tumgreyspfsupp

###################
def syslogprint(s):
	print s
syslog.syslog = syslogprint


##################################
def visit(config, dirname, fileList):
	ospathisfile = os.path.isfile
	ospathjoin = os.path.join
	base = config['greylistBasedir']
	rx = re.compile(r'^/?(\d+)/(\d+)/(\d+)/(\d+)/greylist/(.*)$')
	if config['ignoreLastByte'] > 0:
		rx = re.compile(r'^/?(\d+)/(\d+)/(\d+)/greylist/(.*)$')
	didUnlink = 0
	for file in fileList:
		path = ospathjoin(dirname, file)
		if not ospathisfile(path): continue

		recipient = file
		relative = dirname[len(base):]
		m = rx.match(relative)
		if not m:
			print 'Unknown path "%s" found in greylist directory.' % relative
			continue
		ip = string.join(m.groups()[:-1], '.')
		sender = m.groups()[-1]

		#  look up expration day
		data = {
				'envelope_sender' : tumgreyspfsupp.unquoteAddress(sender),
				'envelope_recipient' : tumgreyspfsupp.unquoteAddress(recipient),
				'client_address' : ip,
				}
		configData = tumgreyspfsupp.lookupConfig(config.get('configPath'),
				data, config.copy())
		expireTime = time.time() - (configData['GREYLISTEXPIREDAYS'] * 86400)

		#  check
		statData = os.stat(path)
		mtime = statData[8]
		ctime = statData[9]
		now = time.time()

		#  status information
		stats = ''
		if ctime < mtime:
			stats = stats + 'Blocked,'
		if mtime > now:
			stats = stats + 'Pending,'
		if stats:
			stats = ' (%s)' % stats[:-1]

		#  display information
		print ('IP=%s SENDER=%s RECIPIENT=%s STARTS=%d LAST=%d EXPIRESIN=%s%s'
				% ( ip, sender, recipient, now - mtime, now - ctime,
					int(expireTime - now), stats ))


############################
#  main code
config = tumgreyspfsupp.processConfigFile()
greylistBasedir = os.path.join(config['greylistDir'], 'client_address')
config['greylistBasedir'] = greylistBasedir
try:
	os.path.walk(greylistBasedir, visit, config)

#  ignore interrupts and errors writing stdout
except IOError, e:
	if e.errno != 32: raise
except KeyboardInterrupt:
	pass