pep8

rhodecode/lib/auth_ldap.py

@@ -1,126 +1,130 b''
 #!/usr/bin/env python
 # encoding: utf-8
 # ldap authentication lib
 # Copyright (C) 2009-2011 Marcin Kuzminski <[e-mail]>
 #
 # 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; version 2
 # of the License or (at your opinion) any later version of the license.
 # 
 # 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., 51 Franklin Street, Fifth Floor, Boston,
 # MA  02110-1301, USA.
 """
 Created on Nov 17, 2010
 
 @author: marcink
 """
 
 from rhodecode.lib.exceptions import *
 import logging
 
 log = logging.getLogger(__name__)
 
 try:
     import ldap
 except ImportError:
     pass
 
 class AuthLdap(object):
 
     def __init__(self, server, base_dn, port=389, bind_dn='', bind_pass='',
                  use_ldaps=False, tls_reqcert='DEMAND', ldap_version=3,
                  ldap_filter='(&(objectClass=user)(!(objectClass=computer)))',
                  search_scope='SUBTREE',
                  attr_login='uid'):
         self.ldap_version = ldap_version
         if use_ldaps:
             port = port or 689
         self.LDAP_USE_LDAPS = use_ldaps
         self.TLS_REQCERT = ldap.__dict__['OPT_X_TLS_' + tls_reqcert]
         self.LDAP_SERVER_ADDRESS = server
         self.LDAP_SERVER_PORT = port
 
         #USE FOR READ ONLY BIND TO LDAP SERVER
         self.LDAP_BIND_DN = bind_dn
         self.LDAP_BIND_PASS = bind_pass
 
         ldap_server_type = 'ldap'
         if self.LDAP_USE_LDAPS:ldap_server_type = ldap_server_type + 's'
         self.LDAP_SERVER = "%s://%s:%s" % (ldap_server_type,
                                                self.LDAP_SERVER_ADDRESS,
                                                self.LDAP_SERVER_PORT)
 
         self.BASE_DN = base_dn
         self.LDAP_FILTER = ldap_filter
         self.SEARCH_SCOPE = ldap.__dict__['SCOPE_' + search_scope]
         self.attr_login = attr_login
 
 
     def authenticate_ldap(self, username, password):
         """Authenticate a user via LDAP and return his/her LDAP properties.
     
         Raises AuthenticationError if the credentials are rejected, or
         EnvironmentError if the LDAP server can't be reached.
         
         :param username: username
         :param password: password
         """
 
         from rhodecode.lib.helpers import chop_at
 
         uid = chop_at(username, "@%s" % self.LDAP_SERVER_ADDRESS)
 
         if "," in username:
             raise LdapUsernameError("invalid character in username: ,")
         try:
             ldap.set_option(ldap.OPT_X_TLS_CACERTDIR, '/etc/openldap/cacerts')
             ldap.set_option(ldap.OPT_REFERRALS, ldap.OPT_OFF)
             ldap.set_option(ldap.OPT_RESTART, ldap.OPT_ON)
             ldap.set_option(ldap.OPT_TIMEOUT, 20)
             ldap.set_option(ldap.OPT_NETWORK_TIMEOUT, 10)
             ldap.set_option(ldap.OPT_TIMELIMIT, 15)
             if self.LDAP_USE_LDAPS:
                 ldap.set_option(ldap.OPT_X_TLS_REQUIRE_CERT, self.TLS_REQCERT)
             server = ldap.initialize(self.LDAP_SERVER)
             if self.ldap_version == 2:
                 server.protocol = ldap.VERSION2
             else:
                 server.protocol = ldap.VERSION3
 
             if self.LDAP_BIND_DN and self.LDAP_BIND_PASS:
                 server.simple_bind_s(self.LDAP_BIND_DN, self.LDAP_BIND_PASS)
 
             filt = '(&%s(%s=%s))' % (self.LDAP_FILTER, self.attr_login, username)
-            log.debug("Authenticating %r filt %s at %s", self.BASE_DN, filt, self.LDAP_SERVER)
-            lobjects = server.search_ext_s(self.BASE_DN, self.SEARCH_SCOPE, filt)
+            log.debug("Authenticating %r filt %s at %s", self.BASE_DN,
+                      filt, self.LDAP_SERVER)
+            lobjects = server.search_ext_s(self.BASE_DN, self.SEARCH_SCOPE,
+                                           filt)
 
             if not lobjects:
                 raise ldap.NO_SUCH_OBJECT()
 
             for (dn, attrs) in lobjects:
                 try:
                     server.simple_bind_s(dn, password)
                     break
 
                 except ldap.INVALID_CREDENTIALS, e:
-                    log.debug("LDAP rejected password for user '%s' (%s): %s", uid, username, dn)
+                    log.debug("LDAP rejected password for user '%s' (%s): %s",
+                              uid, username, dn)
 
                 else:
-                    log.debug("No matching LDAP objecs for authentication of '%s' (%s)", uid, username)
+                    log.debug("No matching LDAP objects for authentication "
+                              "of '%s' (%s)", uid, username)
                     raise LdapPasswordError()
 
         except ldap.NO_SUCH_OBJECT, e:
             log.debug("LDAP says no such user '%s' (%s)", uid, username)
             raise LdapUsernameError()
         except ldap.SERVER_DOWN, e:
             raise LdapConnectionError("LDAP can't access authentication server")
 
         return (dn, attrs)