when using connect_and_bind_to_ldap directly, handle the LDAPBINDError

also, don't request ldap3.ALL for a simple bind and forget connection

uffd/session/views.py

@@ -33,9 +33,11 @@ def login_get_user(loginname, password):
 	else:
 		# When using a LDAP service connection, try bind with separate user connection
 		if current_app.config['LDAP_SERVICE_BIND_DN']:
-			server = ldap3.Server(current_app.config["LDAP_SERVICE_URL"], get_info=ldap3.ALL)
+			server = ldap3.Server(current_app.config["LDAP_SERVICE_URL"])
 			try:
 				conn = connect_and_bind_to_ldap(server, dn, password)
+				if conn is None:
+					raise LDAPBindError
 			except (LDAPBindError, LDAPPasswordIsMandatoryError):
 				return None
 		else: