Don't crash on LDAP errors

shared/views/autocomplete.py

@@ -1,3 +1,4 @@
+import logging
 from collections import namedtuple
 
 from dal import autocomplete
@@ -12,6 +13,9 @@ else:
     ldap = None
 
 
+django_logger = logging.getLogger("django.request")
+
+
 class SearchUnit:
     """Base class for all the search utilities.
 
@@ -128,6 +132,7 @@ class LDAPSearch(SearchUnit):
         if ldap is None or query == "(&)":
             return []
 
+        try:
             ldap_obj = ldap.initialize(self.ldap_server_url)
             res = ldap_obj.search_s(
                 self.domain_component, ldap.SCOPE_SUBTREE, query, self.search_fields
@@ -139,6 +144,9 @@ class LDAPSearch(SearchUnit):
                 )
                 for (_, attrs) in res
             ]
+        except ldap.LDAPError as err:
+            django_logger.error("An LDAP error occurred", exc_info=err)
+            return []
 
 
 # ---