#!/usr/bin/env python
"""News to mail gateway script. Copyright 2000 Cosimo Alfarano
Author: Cosimo Alfarano
Date: June 11 2000
pygs - Copyright 2000 by Cosimo Alfarano <Alfarano@Students.CS.UniBo.It>
You can use this software under the terms of the GPL. If we meet some day,
and you think this stuff is worth it, you can buy me a beer in return.
Thanks to md for this useful formula. Beer is beer.
Gets news article and sends it via SMTP.
"""
import sys, os
import getopt
from string import split
sys.path.append('/usr/lib/pyg')
import pyginfo
import mail2news
def parse_cmdline(gw):
"""Parses cmdline with getopt. and returns a dictionary with
smtp new header
"""
opt, arg = None, None
test, verbose = 0, 0
# retnull = (None, None)
retnull = None
retval = { 'test': 0,
'verbose': 0 }
try:
opt, arg = getopt.getopt(sys.argv[1:],"a:s:n:u:p:P:hvVTM")
except (getopt.error), message:
print '%s: %s\n' % (sys.argv[0], message)
sys.exit(1)
if len(sys.argv) == 1 or opt == []:
gw.smtpheads = None
return retnull
for i in range(len(opt)):
if opt[i][0] == '-h':
gw.nntpheads = None
return retnull
elif opt[i][0] == '-v':
gw.nntpheads = None
return retnull
elif opt[i][0] == '-n':
gw.nntpheads['Newsgroups:'] = opt[i][1] + '\n'
elif opt[i][0] == '-a':
gw.nntpheads['Approved:'] = opt[i][1] + '\n'
elif opt[i][0] == '-s':
gw.newsserver = opt[i][1]
elif opt[i][0] == '-P':
gw.port = int(opt[i][1])
# elif opt[i][0] == '-d':
# gw.debug = 1
elif opt[i][0] == '-u':
gw.user = opt[i][1]
elif opt[i][0] == '-p':
gw.password = opt[i][1]
elif opt[i][0] == '-T':
retval['test'] = 1
elif opt[i][0] == '-V':
retval['verbose'] = 1
elif opt[i][0] == '-M':
gw.reader = 1
if not gw.nntpheads.has_key('Newsgroups:'):
print 'Error: Missing Newsgroups\n'
return retnull
# By rfc822 [Resent-]Sender: should be ever set, unless == From:
# (not this case). Should be a human, while [Resent-]From: may be a program.
# if gw.rcpt == '' or gw.sender == '':
# print 'missing command line option'
# gw.smtpheads = None
# return retnull
# if gw.envelope == '' and gw.sender != '':
# gw.smtpheads['Resent-From:'] = gw.sender + '\n'
# gw.envelope = gw.sender
# elif gw.envelope == -1:
# gw.smtpheads = None
# return retnull
sys.argv[1:] = arg
# return (test, verbose)
return retval
def usage():
i = pyginfo.pygsinfo()
print '%s version %s - Copyright 2000 Cosimo Alfarano' % (i.PROGNAME, i.VERSION)
print i.PROGDESC + ' - Mail to News'
print
print 'usage: %s -n newsgroup [-h] [-a approver] [-n newsgroup] [-T] [-V]' % split(sys.argv[0],'/')[-1]
print '-n newsgroup[s] (specified as comma separated without spaces list)'
print '-u user | -p passwword (for auth to newsserver)'
print '-a address of moderator/approver'
print '-s servername'
# print '-d for debug'
print '-h or -v for this info'
print '-T for test mode (not send article via NNTP)'
print '-V for verbose output (usefull with -T option for debugging)'
"""main is structured in 4 phases:
1) check and set pyg's internal variables
2) check whitelist for users' permission
3) format rfc 822 headers from input article
4) open smtp connection and send e-mail
"""
try:
"""phase 1:
check and set pyg's internal variables
"""
m2n = mail2news.mail2news()
owner = None
opt = parse_cmdline(m2n)
if(opt == None):
usage()
sys.exit(0)
# check if m2n has some file prefercences set on commandline
# if(m2n.wlfile == None):
# wl = os.environ['HOME'] + '/pyg.whitelist'
# else:
# wl = m2n.wlfile
#
# if(m2n.logfile == None):
# log = os.environ['HOME'] + '/pyg.log'
# else:
# log = m2n.logfile
# wl = whitelist.whitelist(wl,log)
# reads stdin and parses article separating head from body
m2n.readfile()
m2n.parseemail()
# for line in m2n.email:
# print line[:-1]
# for line in m2n.smtpheads.keys():
# print line
# print m2n.smtpheads[line][:-1]
"""phase 2:
check whitelist for user's permission
"""
# make a first check of From: address
# owner = wl.checkfrom(m2n.nntpheads['From:'])
# if(owner == None):
# if(sys.stdin.isatty()==1 or test or verbose):
# print ('"%s" is not in whitelist!' % (m2n.nntpheads['From:'][:-1]))
# else:
# wl.logmsg(m2n.nntpheads,wl.DENY)
# sys.exit(1)
"""phase 3:
format rfc 822 headers from input article
"""
m2n.mergeheads() # make unique dict from NNTP and SMTP dicts
m2n.addheads() # add some important heads
m2n.renameheads() # rename useless heads
m2n.removeheads() # remove other heads
m2n.sortheads() # sort remaining heads :)
if(opt['verbose']):
for line in m2n.headers:
print line[:-1]
"""phase 4:
open smtp connection and send e-mail
"""
if(len(m2n.headers) > 0 and len(m2n.body) > 0):
# wl.logmsg(m2n.heads_dict,wl.ACCEPT,owner)
if(not opt['test']):
resp = m2n.sendemail()
if resp:
print resp
except KeyboardInterrupt:
print 'Keyboard Interrupt'
sys.exit(0)
