#!/usr/bin/python

"""
 Automated Faq Poster
 version: 0.3

 Usage: /usr/bin/python usenetposter.py -s <news server> -f <faq file> [-l login] [-p password]

 Notice that the faq file should have at least the following valid usenet message headers:

From: test@example.com
Subject: test
Newsgroups: pt.internet.usenet

<message>
"""

import sys
import os
import time
import nntplib
import getopt
import StringIO

def usage():

	print "Usage: %s  -s <news server> -f <faq file> [-l login] [-p password]" % sys.argv[0]

def main():

	server = ''
	faq = ''
	port = 119
	login = ''
	password = ''

	print "Automated Faq Poster"

	# Check and get options
	try:
		opts, args = getopt.getopt(sys.argv[1:],"s:f:l:p:")
		for x,y in opts:
			if x == '-s':
				server = y
			if x == '-f':
				faq = y
			if x == '-l':
				login = y
			if x == '-p':
				password = y

	except:
	        usage()
	        sys.exit(2)

	if server == '' or faq == '':
		usage()
		sys.exit(2)

	# Check faq access
	if os.access(faq,os.F_OK) and os.access(faq,os.R_OK):

		f = open(faq).read()

		# Date: <year>/<month>/<day>
		# User-Agent: Automated Faq Poster v0.3
		f = "User-Agent: Automated Faq Poster v0.3\r\n" + "Date: " + time.strftime('%Y/%m/%d',time.localtime(time.time())) + "\r\n" + f

		st = StringIO.StringIO(f)

		print "Opening connection..."
		try:
			if login != '':
				s = nntplib.NNTP(server,port,login,password)
			else:
				s = nntplib.NNTP(server)
			# debug level - 2 for extensive debug
			s.set_debuglevel(0)
			print s.getwelcome()
			print "Posting message..."
			s.post(st)
			s.quit()
			print "Done!"
		except Exception, inst:
			# Hint:
                        #	all exceptions have Exception class as their base class
			#	__str__ allows arguments to be printed directly
			print inst

	else:
		usage()

if __name__ == '__main__':
	main()