Don't call enqueue_actor_request() with a NULL user.

activitypub.c

@@ -2256,6 +2256,8 @@ void process_user_queue_item(snac *snac, xs_dict *q_item)
 
             if (valid_status((status = activitypub_request(snac, actor, &actor_o))))
                 actor_add(actor, actor_o);
+            else
+                object_touch(actor);
 
             snac_log(snac, xs_fmt("refresh actor %s %d", actor, status));
         }

data.c

@@ -811,6 +811,16 @@ double object_mtime(const char *id)
 }
 
 
+void object_touch(const char *id)
+{
+    xs *md5 = xs_md5_hex(id, strlen(id));
+    xs *fn = _object_fn_by_md5(md5, "object_touch");
+
+    if (mtime(fn))
+        utimes(fn, NULL);
+}
+
+
 xs_str *_object_index_fn(const char *id, const char *idxsfx)
 /* returns the filename of an object's index */
 {
@@ -1586,7 +1596,7 @@ int actor_get_refresh(snac *user, const char *actor, xs_dict **data)
 {
     int status = actor_get(actor, data);
 
-    if (status == 205)
+    if (status == 205 && user && !xs_startswith(user->actor, srv_baseurl))
         enqueue_actor_request(user, actor);
 
     return status;

snac.h

@@ -112,6 +112,8 @@ double object_ctime_by_md5(const char *md5);
 double object_ctime(const char *id);
 double object_mtime_by_md5(const char *md5);
 double object_mtime(const char *id);
+void object_touch(const char *id);
+
 int object_admire(const char *id, const char *actor, int like);
 int object_unadmire(const char *id, const char *actor, int like);