[Fix] Fuzzy: skip injected (computed) parts on learn and check

diff --git a/src/plugins/fuzzy_check.c b/src/plugins/fuzzy_check.c
index d17b2d935df1c28db91eeb3bcd1a4fd5e422a891..20743b189d94bd14107a5611007388739d4a9272 100644 (file)
--- a/src/plugins/fuzzy_check.c
+++ b/src/plugins/fuzzy_check.c
@@ -4792,6 +4792,11 @@ fuzzy_insert_metric_results(struct rspamd_task *task, struct fuzzy_rule *rule,
        if (task->message) {
                PTR_ARRAY_FOREACH(MESSAGE_FIELD(task, text_parts), i, tp)
                {
+                       if (tp->mime_part && (tp->mime_part->flags & RSPAMD_MIME_PART_COMPUTED)) {
+                               /* Injected parts do not affect hashes weights */
+                               continue;
+                       }
+
                        if (!IS_TEXT_PART_EMPTY(tp) && kv_size(tp->utf_words) > 0) {
                                seen_text_part = TRUE;
 
@@ -5513,6 +5518,12 @@ fuzzy_generate_commands(struct rspamd_task *task, struct fuzzy_rule *rule,
                check_part = FALSE;
                fuzzy_check = FALSE;
 
+               if (mime_part->flags & RSPAMD_MIME_PART_COMPUTED) {
+                       /* Never learn or check injected (computed) parts */
+                       msg_debug_fuzzy_check("skip injected part %ud", mime_part->part_number);
+                       continue;
+               }
+
                if (fuzzy_rule_check_mimepart(task, rule, mime_part, &check_part,
                                                                          &fuzzy_check)) {
                        io = NULL;
@@ -6784,6 +6795,10 @@ fuzzy_lua_hex_hashes_handler(lua_State *L)
                        {
                                struct rspamd_cached_shingles *cached;
 
+                               if (mp->flags & RSPAMD_MIME_PART_COMPUTED) {
+                                       continue;
+                               }
+
                                cached = fuzzy_cmd_get_cached(rule, task, mp);
 
                                if (cached) {