"""Attempt to post an article"""
# meoWWW
# Copyright 1999 G.J. Andruk
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or (at
# your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
import config, os, sys, string, cgi, time, msgid, smtplib, rfc822, re
from cStringIO import StringIO
def trimrefs(refstring):
"""Clean up a References line and shorten it for transport safety.
References will only be kept if they are in the regex form
'<\S+>'. Pessimism be here: we don't try to wrap and the maximum
line length is assumed to be 510. (Ref. NNTP truncates lines >512
chars, and INN 2.1-2-2 won't take refs longer than that. We use
510 to leave room for a CRLF).
NOTE: Some servers allow spaces in message IDs but we don't.
Those servers are broken (see RFC 1036 section 2.1.5).
"""
reflist = []
for ref in string.split(refstring):
if len(ref) > 2 and ref[0] == '<' and ref[-1] == '>':
reflist.append(ref)
refstring = string.join(reflist)
while len(refstring) > 497 and len(reflist):
try:
del reflist[1]
refstring = string.join(reflist)
except:
refstring = ''
return refstring
def killme(errmsg):
"""raise an exception with extra text."""
raise ValueError, (errmsg + " Press your browser's back button to "
'correct any problems and try again.')
CR = '\015'
LF = '\012'
NL = CR + LF
OF = StringIO()
IF = sys.stdin
cfg = config.config()
knownheaders = ('Newsgroups', 'From', 'Subject', 'To',
'Followup-To', 'References', 'Organization')
# Gotta hardcode this because we don't want it internationalized.
months = (None, 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec')
header = {}
try:
header['X-Proxy-Path'] = '%s!%s!%s %d' % (os.environ['SERVER_NAME'],
os.environ['REMOTE_ADDR'],
os.environ['REMOTE_USER'],
time.time())
except:
killme('%s is undefined, cannot proceed (%s)'
% (sys.exc_info()[1], sys.exc_info()[0]))
try:
query = string.split(os.environ['QUERY_STRING'])
except:
query = []
formraw = IF.readline()
formval = cgi.parse_qs(formraw)
for hkey in formval.keys():
if hkey in knownheaders:
if len(formval[hkey]) > 1:
killme('multiple %s headers found.')
if hkey == 'References':
formval[hkey][0] = trimrefs(formval[hkey][0])
if hkey != 'body':
formval[hkey][0] = string.replace(formval[hkey][0], NL, '')
if not formval.has_key('From'):
killme('You must supply a From: header.')
fromlist = rfc822.AddressList(formval['From'][0])
if len(fromlist.addresslist) > 1:
killme("Multiple addresses are not allowed in From: header.")
fromcheck = string.split(fromlist.addresslist[0][1], '@', 1)
if len(fromcheck) < 2 or '.' not in fromcheck[1]:
killme('Your From: header is not an Internet style address.')
for formvalcheck in ('From', 'Subject'):
if ((not formval.has_key(formvalcheck))
or string.strip(formval[formvalcheck][0]) == ''):
killme('%s: header must be present and not blank.' % formvalcheck)
if not (formval.has_key('To') or formval.has_key('Newsgroups')):
killme('You must supply at least one of To: or Newsgroups:.')
if (not formval.has_key('body')) or string.strip(formval['body'][0]) == '':
killme('The message body cannot be empty.')
origcount = 0
quotecount = 0
for line in string.split(formval['body'][0], NL):
if line and line[0] != '>':
origcount = origcount + 1
else:
quotecount = quotecount + 1
del line
if quotecount and origcount < 2:
killme('The message appears to contain all quoted text.')
formval['body'][0] = string.replace(formval['body'][0], NL, '\n')
midctx = msgid.Msgid(os.environ['SERVER_NAME'])
datetab = string.split(time.strftime('%d %m %Y %H:%M:%S +0000',
time.gmtime(time.time())))
datetab[1] = months[int(datetab[1])]
header['Date'] = string.join(datetab)
header['Message-ID'] = midctx.makeid()
header['Received'] = ('(from %s@%s) by %s (%s/%s)\n\tid %s; %s'
% (os.environ['REMOTE_USER'],
os.environ['REMOTE_ADDR'],
os.environ['SERVER_NAME'],
config.name, config.version,
string.split(header['Message-ID'][1:], '@')[0],
header['Date']))
header['Path'] = string.split(header['X-Proxy-Path'], None, 1)[0]
header['User-Agent'] = '%s/%s' % (config.name, config.version)
header['X-Meow'] = 'Meow'
for hkey in knownheaders:
if formval.has_key(hkey) and string.strip(formval[hkey][0]):
header[hkey] = formval[hkey][0]
# unwrap just in case
header[hkey] = string.replace(header[hkey], CR, '')
header[hkey] = string.replace(header[hkey], LF, '')
if header['Newsgroups']:
header['Newsgroups'] = string.join(string.split(header['Newsgroups']), '')
while string.find(header['Newsgroups'], ',,') != -1:
header['Newsgroups'] = string.replace(header['Newsgroups'], ',,', ',')
if header['Newsgroups'][0] == ',':
header['Newsgroups'] = header['Newsgroups'][1:]
if header['Newsgroups'][-1] == ',':
header['Newsgroups'] = header['Newsgroups'][:-1]
if (not header['Newsgroups']):
killme('No valid-looking newsgroups found.')
OF.write('content-type: text/html' + NL + NL)
OF.write('%s - post%s' % (config.name, cfg.body))
postedok = 0
if formval.has_key('dowhat'):
if 'post' in formval['dowhat'] and header['Newsgroups']:
rh = cfg.connect()
artout = StringIO()
for hline in ('Newsgroups', 'From', 'Subject', 'Message-ID',
'Path', 'Date', 'References', 'Followup-To',
'Organization', 'User-Agent', 'X-Proxy-Path',
'X-Meow'):
if header.has_key(hline):
artout.write('%s: %s\n' % (hline, header[hline]))
artout.write('\n')
artout.write(formval['body'][0])
artout.seek(0)
try:
rh.post(artout)
except:
if 'mail' in formval['dowhat'] and header['To']:
mailmsg = ' (and mail not attempted)'
else:
mailmsg = ''
killme("Posting failed" + mailmsg + ", server reponse was '"
+ str(sys.exc_info()[1]) + "'.")
OF.write('Posted OK.
')
artout.close()
del artout
postedok = 1
if 'mail' in formval['dowhat'] and header['To']:
mailout = StringIO()
for hline in ('Received', 'From', 'To', 'Subject', 'Message-ID',
'Date', 'References'):
if header.has_key(hline):
mailout.write('%s: %s\n' % (hline, header[hline]))
if header.has_key('User-Agent'):
mailout.write('X-Mailer: %s\n' % (header['User-Agent']))
if header.has_key('Newsgroups'):
mailout.write('X-Newsgroups: %s\n' % (header['Newsgroups']))
mailout.write('\n')
if 'post' in formval['dowhat']:
mailout.write('(This message was also posted as news.)\n\n')
mailout.write(formval['body'][0])
mailfrom = rfc822.parseaddr(header['From'])[1]
rcptto = []
rcptlist = rfc822.AddressList(header['To'])
for recip in rcptlist.addresslist:
rcptto.append(recip[1])
mailout.seek(0)
try:
mh = smtplib.SMTP(cfg.mailserver)
mh.helo(os.environ['SERVER_NAME'])
mh.sendmail((mailfrom), rcptto, mailout.read())
except:
if postedok:
sys.exit('Posted okay but mail failed: '
+ str(sys.exc_info()[1]))
else:
sys.exit('Mail failed: ' + str(sys.exc_info()[1]))
OF.write('
Mailed OK.
')
mailout.close()
del mailout
OF.seek(0)
sys.stdout.write(OF.read())
OF.close()
del OF
sys.stdout.write("Press your browser's back button a couple times "
"to continue reading news.