MoinMoin: attachment:Auth_nis_login.py of AuthMarket

   1 # -*- coding: iso-8859-1 -*-
   2 """
   3     MoinMoin - NIS  Yellow Pages
   4 
   5     This code only creates a user object, the session will be established by
   6     moin automatically.
   7 
   8     place file in:
   9 	/usr/lib/python2.5/site-packages/MoinMoin/auth/
  10 
  11     wikiconfig.py:
  12 	from MoinMoin.auth.nis_login import NISAuth
  13 	auth = [NISAuth(autocreate=True, maildomain='@yourdomain.com')]
  14 
  15     @copyright: 2008 Stefan Sami-Soueiha,
  16     @license: GNU GPL, see COPYING for details.
  17 
  18     Version: 1.0 12.12.2008
  19 """
  20 from MoinMoin import log
  21 logging = log.getLogger(__name__)
  22 
  23 try:
  24     import nis, crypt
  25 except ImportError, err:
  26     logging.error("You need to have python nis & crypt module's (%s)." % str(err))
  27     raise
  28 
  29 from MoinMoin import user
  30 from MoinMoin.auth import BaseAuth, CancelLogin, ContinueLogin
  31 
  32 
  33 class NISAuth(BaseAuth):
  34     """ get authentication data from form, authenticate against NIS server
  35         The session is kept by moin automatically.
  36     """
  37 
  38     login_inputs = ['username', 'password']
  39     logout_possible = True
  40     name = 'nis'
  41 
  42     def __init__(self,  autocreate=False, 
  43 			maildomain='@domain.com',
  44 			niscat='passwd.byname'		# ypcat passwd
  45 		):
  46 
  47 	BaseAuth.__init__(self)
  48         self.autocreate = autocreate
  49 	self.maildomain = maildomain
  50 	self.niscat     = niscat
  51 
  52     def login(self, request, user_obj, **kw):
  53         username = kw.get('username')
  54         password = kw.get('password')
  55         _ = request.getText
  56 
  57         # we require non-empty password 
  58         if not username or not password:
  59             return ContinueLogin(user_obj, 
  60 		_('Missing password. Please enter user name and password.'))
  61 	logging.debug("trying to authenticate NIS user: %r" % username)
  62 
  63         try:
  64 	    userline=nis.cat(self.niscat)[username]
  65 	    try:
  66 		passwd_hash=userline.split(':')[1]
  67 		passwd_hash_entered = crypt.crypt(password, passwd_hash[:2])
  68 
  69 		if passwd_hash == passwd_hash_entered:
  70 		    u = user.User(request, auth_username=username, auth_method=self.name, auth_attribs=('name', 'password', 'email', 'mailto_author', ))
  71 		    u.name = username
  72 		    u.aliasname = userline.split(':')[4]
  73 		    u.email = username + self.maildomain
  74 		    u.remember_me = 0 # 0 enforces cookie_lifetime config param
  75 		    logging.debug("creating userprefs with name %r email %r alias %r" % (u.name, u.email, u.aliasname))
  76 
  77 		if u and self.autocreate:
  78 		    u.create_or_update(True)
  79 		return ContinueLogin(u)
  80 
  81 	    except:
  82 		logging.debug("invalid password (user: %s)" % (username))
  83 		return CancelLogin(_("Invalid password (user:%s)."% (username)))
  84 		#return CancelLogin(_("Invalid password ((%s:%s)(%s:%s)." % (username, password, passwd_hash, passwd_hash_entered)))
  85 
  86 	except:		# username not in NIS
  87 	    logging.debug("invalid username: (%s)" % (username))
  88 	    return CancelLogin(_("Invalid username (%s)."% (username)))
  89