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+#!/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)