The original upstream from Debian orig.tar.gz tarball.0.9.7

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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 from stdin and sends it via SMTP.
+"""
+
+import sys, os
+import getopt
+from string import split
+
+sys.path.append('/usr/lib/pyg')
+
+import pyginfo
+import whitelist
+import news2mail
+#import mail2news
+
+	
+def parse_cmdline(gw):
+	"""Parses cmdline with getopt.
+	set a dictionary with smtp new header in gw parameter (gw.smtpheads)
+	return (test,verbose) boolean tuple 
+	"""
+
+	opt, arg = None, None
+	test, verbose = 0, 0
+	retnull = (None, None)
+	
+	try:
+		opt, arg = getopt.getopt(sys.argv[1:],"H:t:s:e:w:l:hdvVT")
+	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.smtpheads = None
+			return retnull
+		elif opt[i][0] == '-v':
+			gw.smtpheads = None
+			return retnull
+		elif opt[i][0] == '-H':
+			gw.smtpserver = opt[i][1]
+		elif opt[i][0] == '-s':
+			gw.smtpheads['Resent-Sender:'] = opt[i][1] + '\n'
+			gw.sender = opt[i][1]
+		elif opt[i][0] == '-t' or opt[i][0] == '-r':
+			gw.smtpheads['To:'] = opt[i][1] + '\n'
+			gw.rcpt = opt[i][1]
+		elif opt[i][0] == '-e':
+			gw.smtpheads['Resent-From:'] = opt[i][1] +  '\n' #envelope
+			gw.envelope = opt[i][1]
+		elif opt[i][0] == '-w':
+			gw.wlfile = opt[i][1]
+		elif opt[i][0] == '-l':
+			gw.logfile = opt[i][1]
+		elif opt[i][0] == '-d':
+			gw.debug = 1
+		elif opt[i][0] == '-T':
+			test = 1
+		elif opt[i][0] == '-V':
+			verbose = 1
+
+#  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)
+
+
+def usage():
+	i = pyginfo.pygsinfo()
+
+	print '%s version %s - Copyright 2000 Cosimo Alfarano' % (i.PROGNAME, i.VERSION)
+	print i.__doc__
+	print 
+	print 'usage: %s [-h] [-d] [-T] [-V] [-H smtphost] [-l logfile] [-w whitelist] -t recipient@... -s sender@... [-e envelope@...]' % split(sys.argv[0],'/')[-1]
+	print '-t -s	recipient, sender are necessary'
+	print '-e	envelope [default: same of sender]'
+	print '-T for test mode (not send article via SMTP)'
+	print '-V for verbose output'
+	print '-d for debug'
+	print '-h or -v for this info'
+	
+
+
+
+
+
+
+
+"""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
+	"""
+
+	n2m = news2mail.news2mail()
+	owner = None
+
+	# it returns only test, other parms are set directly in the actual parameter
+	(test, verbose) = parse_cmdline(n2m)
+	if (test, verbose) == (None, None):
+		usage()
+		sys.exit(0)
+
+
+	# check if n2m has some file prefercences set on commandline
+	if(n2m.wlfile == None):
+		wl = os.environ['HOME'] + '/pyg.whitelist'
+	else:
+		wl = n2m.wlfile
+	
+	if(n2m.logfile == None):
+		log = os.environ['HOME'] + '/pyg.log'
+	else:
+		log = n2m.logfile
+
+#	print 'using %s %s\n' % (wl,log)
+
+	wl = whitelist.whitelist(wl,log)
+
+	# reads stdin and parses article separating head from body
+	n2m.readfile()
+	n2m.parsearticle()
+
+
+	"""phase 2:
+	check whitelist for user's permission
+	"""
+
+	# make a first check of From: address
+	owner = wl.checkfrom(n2m.nntpheads['From:'])
+	if(owner == None):
+		if(sys.stdin.isatty()==1 or test):
+			print ('"%s" is not in whitelist!' % (n2m.nntpheads['From:'][:-1]))
+		else:
+			wl.logmsg(n2m.nntpheads,wl.DENY)
+			
+		# if verbose, I want to print out headers, so I can't
+		# exit now.
+		if(not verbose):
+			sys.exit(1)
+
+	"""phase 3:
+	format rfc 822 headers from input article
+	"""
+
+	n2m.mergeheads()	# make unique dict from NNTP and SMTP dicts
+	
+	n2m.addheads()		# add some important heads
+	n2m.renameheads()	# rename useless heads
+	n2m.removeheads()	# remove other heads
+
+	n2m.sortheads()		# sort remaining heads :)
+
+	# prints formatted email message only (without send) if user wants
+	if(verbose):
+		for line in n2m.headers:
+			print line[:-1]
+	
+	if(owner == None):
+		sys.exit(1)
+	
+
+	"""phase 4:
+	open smtp connection and send e-mail
+	"""
+
+	if len(n2m.headers) > 0:
+		wl.logmsg(n2m.heads_dict,wl.ACCEPT,owner)
+		if(not test):
+			n2m.sendarticle()
+	else:
+		print 'Error: No Headers!!!'
+
+except KeyboardInterrupt:
+	print 'Keyboard Interrupt'
+	sys.exit(1)