"""News to mail gateway script. Copyright 2000 Cosimo Alfarano Author: Cosimo Alfarano Date: June 11 2000 news2mail.py - (C) 2000 by Cosimo Alfarano 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. class news2mail is hopefully conform to rfc822. normal (what pygs does) operations flow is: 1) reads from stdin NNTP article (readfile) 2) divide headers and body (parsearticle) 3) merges NNTP and SMTP heads into a unique heads 4) adds, renames and removes some heads 5) sorts remaining headers starting at top with Received: From: To: Subject: Date:, normal headers ending with X-* and Resent-* headers. """ import email import logging from collections import OrderedDict # logging.basicConfig(level=logging.DEBUG) import sys import smtplib import time from socket import gethostbyaddr, gethostname import pyginfo class news2mail(object): """news to mail gateway class""" wlfile = None logfile = None sender = '' rcpt = '' envelope = '' smtpserver = 'localhost' hostname = gethostbyaddr(gethostname())[0] heads_dict, smtpheads, nntpheads = {}, {}, {} article, headers, body = [], [], [] message = None debug = 1 def readfile(self): self.message = email.message_from_file(sys.stdin) self.nntpheads = dict(((key, value) for (key, value) in self.message.items())) @staticmethod def puthead(from_dict, out_list, key): """private, x-form dict entries in out_list entries""" if key in from_dict: out_list.append(key + ' ' + from_dict.get(key)) else: return 0 return 1 def sortheads(self): """make list sorting heads, Received: From: To: Subject: first, others, X-*, Resent-* last""" # put at top header_set = ('Received', 'From', 'To', 'Subject', 'Date') for k in header_set: self.puthead(self.heads_dict, self.headers, k) for k in self.heads_dict.keys(): if not k.startswith('X-') and not k.startswith('Resent-') \ and k not in header_set: self.puthead(self.heads_dict, self.headers, k) for k in self.heads_dict.keys(): if k.startswith('X-'): self.puthead(self.heads_dict, self.headers, k) for k in self.heads_dict.keys(): if k.startswith('Resent-'): self.puthead(self.heads_dict, self.headers, k) logging.debug('self.headers = %s', self.headers) return self.headers def mergeheads(self): """make a unique headers dictionary from NNTP and SMTP single headers dictionaries.""" self.heads_dict = OrderedDict() try: for header in self.nntpheads.keys(): # fill it w/ nntp old heads self.heads_dict[header] = self.nntpheads[header] # and replace them w/ smtp new heads for header in self.smtpheads.keys(): self.heads_dict[header] = self.smtpheads[header] except KeyError, message: print message return self.heads_dict def addheads(self): """add new header like X-Gateway: Received: """ info = pyginfo.pygsinfo() try: self.heads_dict['X-Gateway'] = info.PROGNAME + ' ' + \ info.__doc__ + '\n' ##self.heads_dict['X-Gateway'] = '%s %s\n' % ## (info.PROGNAME, info.__doc__) # to make Received: header t = time.ctime(time.time()) if time.daylight: tzone = time.tzname[1] else: tzone = time.tzname[0] # An exemple from debian-italian: # Received: from murphy.debian.org (murphy.debian.org [216.234.231.6]) # by smv04.iname.net (8.9.3/8.9.1SMV2) with SMTP id JAA26407 # for sent by # ; ' + \ t + ' (' + tzone + ')\n' self.heads_dict['Received'] = tmp except KeyError, message: print message return self.heads_dict def renameheads(self): """rename headers such as Newsgroups: to X-Newsgroups: headers renamed are useless or not rfc 822 copliant """ try: if 'Newsgroups' in self.heads_dict: self.heads_dict['X-Newsgroups'] = \ self.heads_dict['Newsgroups'] del self.heads_dict['Newsgroups'] if 'NNTP-Posting-Host' in self.heads_dict: self.heads_dict['X-NNTP-Posting-Host'] = \ self.heads_dict['NNTP-Posting-Host'] del self.heads_dict['NNTP-Posting-Host'] except KeyError, message: print message return self.heads_dict def removeheads(self): """remove headers like Xref: Path: Lines: """ try: # removing some others useless headers .... # that includes BOTH 'From ' and 'From' # 'Sender is usually set by INN, if ng is moderated... for key in ('Approved', 'From', 'Xref', 'Path', 'Lines', 'Sender'): if key in self.heads_dict: del self.heads_dict[key] if 'Message-id' in self.heads_dict: self.heads_dict['Message-Id'] = self.heads_dict['Message-id'] del self.heads_dict['Message-id'] if 'Message-ID' in self.heads_dict: self.heads_dict['Message-Id'] = self.heads_dict['Message-ID'] del self.heads_dict['Message-ID'] # If message-id is not present, I generate it if 'Message-Id' not in self.heads_dict: # It should put a real user@domain self.heads_dict['Message-Id'] = 'pyg@puppapera.org' except KeyError, message: print message return self.heads_dict def sendarticle(self): """Talk to SMTP server and try to send email.""" try: raise NotImplementedError( 'sendarticle does not use email.Message yet') msglist = [] s = smtplib.SMTP(self.smtpserver) # put real locahost domain name. s.helo(self.hostname) if s.helo_resp is None and s.ehlo_resp is None: print 'No helo resp' sys.exit(1) resp = s.mail(self.envelope) if resp[0] != 250: print 'SMTP error during MAIL cmd: %s %s' % (resp[0], resp[1]) print 'envelope %s gave problem?' % self.envelope sys.exit(1) resp = s.rcpt(self.rcpt) if resp[0] != 250: print 'SMTP error during MAIL cmd: %s %s' % (resp[0], resp[1]) sys.exit(1) msglist.append(''.join(self.headers)) msglist.append(''.join(self.body)) msg = ''.join(msglist) s.data(msg) s.quit() return 1 except (smtplib.SMTPException), messaggio: print messaggio sys.exit(1)