[Feature] Write DKIM selector in dkim allow/reject symbols

src/libserver/dkim.c

@@ -2528,6 +2528,16 @@ rspamd_dkim_get_domain (rspamd_dkim_context_t *ctx)
 	return NULL;
 }
 
+const gchar*
+rspamd_dkim_get_selector (rspamd_dkim_context_t *ctx)
+{
+	if (ctx) {
+		return ctx->selector;
+	}
+
+	return NULL;
+}
+
 guint
 rspamd_dkim_key_get_ttl (rspamd_dkim_key_t *k)
 {

src/libserver/dkim.h

@@ -222,6 +222,7 @@ void rspamd_dkim_key_unref (rspamd_dkim_key_t *k);
 rspamd_dkim_sign_key_t * rspamd_dkim_sign_key_ref (rspamd_dkim_sign_key_t *k);
 void rspamd_dkim_sign_key_unref (rspamd_dkim_sign_key_t *k);
 const gchar* rspamd_dkim_get_domain (rspamd_dkim_context_t *ctx);
+const gchar* rspamd_dkim_get_selector (rspamd_dkim_context_t *ctx);
 const gchar* rspamd_dkim_get_dns_key (rspamd_dkim_context_t *ctx);
 guint rspamd_dkim_key_get_ttl (rspamd_dkim_key_t *k);
 

src/plugins/dkim_check.c

@@ -1013,22 +1013,25 @@ dkim_module_check (struct dkim_check_result *res)
 
 			if (symbol != NULL) {
 				const gchar *domain = rspamd_dkim_get_domain (cur->ctx);
+				const gchar *selector = rspamd_dkim_get_selector (cur->ctx);
 				gsize tracelen;
 				gchar *tracebuf;
 
-				tracelen = strlen (domain) + 3; /* :<trace>\0 */
+				tracelen = strlen (domain) + strlen (selector) + 4;
 				tracebuf = rspamd_mempool_alloc (cur->task->task_pool,
 						tracelen);
 				rspamd_snprintf (tracebuf, tracelen, "%s:%s", domain, trace);
 
-				rspamd_task_insert_result (cur->task,
-						symbol,
-						symbol_weight,
-						domain);
 				rspamd_task_insert_result (cur->task,
 						"DKIM_TRACE",
 						0.0,
 						tracebuf);
+
+				rspamd_snprintf (tracebuf, tracelen, "%s:s=%s", domain, selector);
+				rspamd_task_insert_result (cur->task,
+						symbol,
+						symbol_weight,
+						tracebuf);
 			}
 		}
 	}