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.
 
@@ -128,17 +132,21 @@ class LDAPSearch(SearchUnit):
         if ldap is None or query == "(&)":
             return []
 
-        ldap_obj = ldap.initialize(self.ldap_server_url)
-        res = ldap_obj.search_s(
-            self.domain_component, ldap.SCOPE_SUBTREE, query, self.search_fields
-        )
-        return [
-            Clipper(
-                clipper=attrs["uid"][0].decode("utf-8"),
-                fullname=attrs["cn"][0].decode("utf-8"),
+        try:
+            ldap_obj = ldap.initialize(self.ldap_server_url)
+            res = ldap_obj.search_s(
+                self.domain_component, ldap.SCOPE_SUBTREE, query, self.search_fields
             )
-            for (_, attrs) in res
-        ]
+            return [
+                Clipper(
+                    clipper=attrs["uid"][0].decode("utf-8"),
+                    fullname=attrs["cn"][0].decode("utf-8"),
+                )
+                for (_, attrs) in res
+            ]
+        except ldap.LDAPError as err:
+            django_logger.error("An LDAP error occurred", exc_info=err)
+            return []
 
 
 # ---