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#! /usr/bin/env python -u
#
# Copyright (C) 1998 by the Free Software Foundation, Inc.
#
# 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.
"""Provide a password-interface wrapper around private archives.
Currently this is organized to obtain passwords for Mailman mailing list
subscribers.
"""
import sys, os, string
from Mailman import MailList, Errors
from Mailman import Cookie
from Mailman.Logging.Utils import LogStdErr
from Mailman import Utils
import Mailman.mm_cfg
LogStdErr("error", "private")
PAGE = '''
<html>
<head>
<title>%(listname)s Private Archives Authentication</title>
</head>
<body bgcolor="#ffffff">
<FORM METHOD=POST ACTION="%(basepath)s/">
<TABLE WIDTH="100%%" BORDER="0" CELLSPACING="4" CELLPADDING="5">
<TR>
<TD COLSPAN="2" WIDTH="100%%" BGCOLOR="#99CCFF" ALIGN="CENTER">
<B><FONT COLOR="#000000" SIZE="+1">%(listname)s Private Archives
Authentication</FONT></B>
</TD>
</TR>
<tr>
<td COLSPAN="2"> <P>%(message)s </td>
<tr>
</tr>
<TD> <div ALIGN="Right">Address: </div></TD>
<TD> <INPUT TYPE=TEXT NAME=username SIZE=30> </TD>
<tr>
</tr>
<TD> <div ALIGN="Right"> Password: </div> </TD>
<TD> <INPUT TYPE=password NAME=password SIZE=30></TD>
<tr>
</tr>
<td></td>
<td> <INPUT TYPE=SUBMIT>
</td>
</tr>
</TABLE>
</FORM>
'''
login_attempted = 0
_list = None
def GetListobj(list_name):
"""Return an unlocked instance of the named mailing list, if found."""
global _list
if _list:
return _list
_list = MailList.MailList(list_name, lock=0)
return _list
def isAuthenticated(list_name):
try:
listobj = GetListobj(list_name)
except Errors.MMUnknownListError:
print "\n<H3>List", repr(list_name), "not found.</h3>"
raise SystemExit
if os.environ.has_key('HTTP_COOKIE'):
c = Cookie.Cookie( os.environ['HTTP_COOKIE'] )
if c.has_key(list_name):
if listobj.CheckCookie(c[list_name].value):
return 1
# No corresponding cookie. OK, then check for username, password
# CGI variables
import cgi
v = cgi.FieldStorage()
username = password = None
if v.has_key('username'):
username = v['username']
if type(username) == type([]): username = username[0]
username = username.value
if v.has_key('password'):
password = v['password']
if type(password) == type([]): password = password[0]
password = password.value
if username is None or password is None: return 0
# Record that this is a login attempt, so if it fails the form can
# be displayed with an appropriate message.
global login_attempted
login_attempted=1
try:
listobj.ConfirmUserPassword( username, password)
except (Errors.MMBadUserError, Errors.MMBadPasswordError,
Errors.MMNotAMemberError):
return 0
token = listobj.MakeCookie()
c = Cookie.Cookie()
c[list_name] = token
print c # Output the cookie
return 1
def true_path(path):
"Ensure that the path is safe by removing .."
path = string.replace(path, "../", "")
path = string.replace(path, "./", "")
return path[1:]
def content_type(path):
if path[-3:] == '.gz':
path = path[:-3]
if path[-4:] == '.txt':
return 'text/plain'
return 'text/html'
def main():
path = os.environ.get('PATH_INFO', "/index.html")
true_filename = os.path.join(
Mailman.mm_cfg.PRIVATE_ARCHIVE_FILE_DIR,
true_path(path))
list_info = Utils.GetPathPieces(path)
if len(list_info) == 0:
list_name = None
else:
list_name = string.lower(list_info[0])
# If it's a directory, we have to append index.html in this script. We
# must also check for a gzipped file, because the text archives are
# usually stored in compressed form.
if os.path.isdir(true_filename):
true_filename = true_filename + '/index.html'
if not os.path.exists(true_filename) and \
os.path.exists(true_filename + '.gz'):
# then
true_filename = true_filename + '.gz'
if not list_name or not isAuthenticated(list_name):
# Output the password form
print 'Content-type: text/html\n'
page = PAGE
if not list_name:
print '\n<h3>No list name found.</h3>'
raise SystemExit
try:
listobj = GetListobj(list_name)
except Errors.MMUnknownListError:
print "\n<H3>List", repr(list_name), "not found.</h3>"
raise SystemExit
if login_attempted:
message = ("Your email address or password were incorrect."
" Please try again.")
else:
message = ("Please enter your %s subscription email address"
" and password." % listobj.real_name)
while path and path[0] == '/': path=path[1:] # Remove leading /'s
basepath = os.path.split(listobj.GetBaseArchiveURL())[0]
listname = listobj.real_name
print '\n\n', page % vars()
sys.exit(0)
# Authorization confirmed... output the desired file
try:
if true_filename[-3:] == '.gz':
import gzip
f = gzip.open(true_filename, 'r')
else:
f = open(true_filename, 'r')
except IOError:
print 'Content-type: text/html\n'
print "<H3>Archive File Not Found</H3>"
print "No file", path, '(%s)' % true_filename
else:
print 'Content-type:', content_type(path), '\n'
while (1):
data = f.read(16384)
if data == "": break
sys.stdout.write(data)
f.close()
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