[Feature] Allow to disable symbols from the metric config

src/libserver/cfg_file.h

@@ -127,9 +127,10 @@ struct rspamd_symbols_group {
 
 enum rspamd_symbol_flags {
 	RSPAMD_SYMBOL_FLAG_NORMAL = 0,
-	RSPAMD_SYMBOL_FLAG_IGNORE = (1 << 1),
+	RSPAMD_SYMBOL_FLAG_IGNORE_METRIC = (1 << 1),
 	RSPAMD_SYMBOL_FLAG_ONEPARAM = (1 << 2),
 	RSPAMD_SYMBOL_FLAG_UNGROUPPED = (1 << 3),
+	RSPAMD_SYMBOL_FLAG_DISABLED = (1 << 4),
 };
 
 /**

src/libserver/cfg_rcl.c

@@ -520,7 +520,23 @@ rspamd_rcl_symbol_handler (rspamd_mempool_t *pool, const ucl_object_t *obj,
 		}
 
 		if (ucl_object_toboolean (elt)) {
-			flags |= RSPAMD_SYMBOL_FLAG_IGNORE;
+			flags |= RSPAMD_SYMBOL_FLAG_IGNORE_METRIC;
+		}
+	}
+
+	if ((elt = ucl_object_lookup (obj, "enabled")) != NULL) {
+		if (ucl_object_type (elt) != UCL_BOOLEAN) {
+			g_set_error (err,
+					CFG_RCL_ERROR,
+					EINVAL,
+					"enabled attribute is not boolean for symbol: '%s'",
+					key);
+
+			return FALSE;
+		}
+
+		if (ucl_object_toboolean (elt)) {
+			flags |= RSPAMD_SYMBOL_FLAG_DISABLED;
 		}
 	}
 

src/libserver/rspamd_symcache.c

@@ -1495,7 +1495,8 @@ rspamd_symcache_validate (struct rspamd_symcache *cache,
 		ignore_symbol = FALSE;
 		sym_def = v;
 
-		if (sym_def && (sym_def->flags & RSPAMD_SYMBOL_FLAG_IGNORE)) {
+		if (sym_def && (sym_def->flags &
+				(RSPAMD_SYMBOL_FLAG_IGNORE_METRIC|RSPAMD_SYMBOL_FLAG_DISABLED))) {
 			ignore_symbol = TRUE;
 		}
 
@@ -1512,6 +1513,13 @@ rspamd_symcache_validate (struct rspamd_symcache *cache,
 				}
 			}
 		}
+		else if (sym_def->flags & RSPAMD_SYMBOL_FLAG_DISABLED) {
+			item = g_hash_table_lookup (cache->items_by_symbol, k);
+
+			if (item) {
+				item->enabled = FALSE;
+			}
+		}
 	}
 
 	return ret;

src/lua/lua_config.c

@@ -2318,7 +2318,7 @@ lua_config_set_metric_symbol (lua_State * L)
 				nshots = 1;
 			}
 			if (strstr (flags_str, "ignore") != NULL) {
-				flags |= RSPAMD_SYMBOL_FLAG_IGNORE;
+				flags |= RSPAMD_SYMBOL_FLAG_IGNORE_METRIC;
 			}
 			if (strstr (flags_str, "one_param") != NULL) {
 				flags |= RSPAMD_SYMBOL_FLAG_ONEPARAM;
@@ -3376,7 +3376,7 @@ lua_metric_symbol_inserter (gpointer k, gpointer v, gpointer ud)
 	lua_pushstring (L, "flags");
 	lua_createtable (L, 0, 3);
 
-	if (s->flags & RSPAMD_SYMBOL_FLAG_IGNORE) {
+	if (s->flags & RSPAMD_SYMBOL_FLAG_IGNORE_METRIC) {
 		lua_pushstring (L, "ignore");
 		lua_pushboolean (L, true);
 		lua_settable (L, -3);
@@ -3391,6 +3391,11 @@ lua_metric_symbol_inserter (gpointer k, gpointer v, gpointer ud)
 		lua_pushboolean (L, true);
 		lua_settable (L, -3);
 	}
+	if (s->flags & RSPAMD_SYMBOL_FLAG_DISABLED) {
+		lua_pushstring (L, "disabled");
+		lua_pushboolean (L, true);
+		lua_settable (L, -3);
+	}
 
 	if (s->cache_item) {
 		guint sflags = rspamd_symcache_get_symbol_flags (cbd->cfg->cache, sym);

src/plugins/dkim_check.c

@@ -538,7 +538,7 @@ dkim_module_config (struct rspamd_config *cfg)
 				0.0,
 				"DKIM check callback",
 				"policies",
-				RSPAMD_SYMBOL_FLAG_IGNORE,
+				RSPAMD_SYMBOL_FLAG_IGNORE_METRIC,
 				1,
 				1);
 		rspamd_config_add_symbol_group (cfg, "DKIM_CHECK", "dkim");
@@ -585,7 +585,7 @@ dkim_module_config (struct rspamd_config *cfg)
 				0.0,
 				"DKIM trace symbol",
 				"policies",
-				RSPAMD_SYMBOL_FLAG_IGNORE,
+				RSPAMD_SYMBOL_FLAG_IGNORE_METRIC,
 				1,
 				1);
 		rspamd_config_add_symbol_group (cfg, "DKIM_TRACE", "dkim");

src/plugins/fuzzy_check.c

@@ -1060,7 +1060,7 @@ fuzzy_check_module_config (struct rspamd_config *cfg)
 				0.0,
 				"Fuzzy check callback",
 				"fuzzy",
-				RSPAMD_SYMBOL_FLAG_IGNORE,
+				RSPAMD_SYMBOL_FLAG_IGNORE_METRIC,
 				1,
 				1);
 

src/plugins/spf.c

@@ -349,7 +349,7 @@ spf_module_config (struct rspamd_config *cfg)
 			0.0,
 			"SPF check callback",
 			"policies",
-			RSPAMD_SYMBOL_FLAG_IGNORE,
+			RSPAMD_SYMBOL_FLAG_IGNORE_METRIC,
 			1,
 			1);
 	rspamd_config_add_symbol_group (cfg, "SPF_CHECK", "spf");