[Minor] Lua_config: Add routine to extract the specific symbol's configuration

diff --git a/src/lua/lua_config.c b/src/lua/lua_config.c
index aee5e25ae7f758d0208e2ea7f11aa7857e30a34c..1a98f0ea68a5c57d47fe3f0dad6798d3a017a1e6 100644 (file)
--- a/src/lua/lua_config.c
+++ b/src/lua/lua_config.c
@@ -665,6 +665,20 @@ LUA_FUNCTION_DEF (config, get_symbols_counters);
  */
 LUA_FUNCTION_DEF (config, get_symbols);
 
+/***
+ * @method rspamd_config:get_symbol(sym_name)
+ * Returns table for a specific symbol getting data from the static config:
+ * - name
+ * - score
+ * - flags (e.g. `ignore` or `oneparam`)
+ * - nshots (== maxhits)
+ * - group - main group
+ * - groups - array of all groups
+ * @available 3.3+
+ * @return {table} symbol data (or nil)
+ */
+LUA_FUNCTION_DEF (config, get_symbol);
+
 /***
  * @method rspamd_config:get_symbol_callback(name)
  * Returns callback function for the specified symbol if it is a lua registered callback
@@ -900,6 +914,7 @@ static const struct luaL_reg configlib_m[] = {
        LUA_INTERFACE_DEF (config, get_symbols_counters),
        {"get_symbols_scores", lua_config_get_symbols},
        LUA_INTERFACE_DEF (config, get_symbols),
+       LUA_INTERFACE_DEF (config, get_symbol),
        LUA_INTERFACE_DEF (config, get_groups),
        LUA_INTERFACE_DEF (config, get_symbol_callback),
        LUA_INTERFACE_DEF (config, set_symbol_callback),
@@ -3638,6 +3653,33 @@ lua_config_get_symbols (lua_State *L)
        return 1;
 }
 
+static gint
+lua_config_get_symbol (lua_State *L)
+{
+       LUA_TRACE_POINT;
+       struct rspamd_config *cfg = lua_check_config (L, 1);
+       const gchar *sym_name = luaL_checkstring(L, 2);
+
+       if (cfg != NULL && sym_name != NULL) {
+               struct lua_metric_symbols_cbdata cbd;
+               struct rspamd_symbol *s = g_hash_table_lookup(cfg->symbols, sym_name);
+
+               if (s) {
+                       cbd.L = L;
+                       cbd.cfg = cfg;
+                       lua_metric_symbol_inserter((void *)sym_name, s, &cbd);
+               }
+               else {
+                       /* No config for a symbol */
+                       lua_pushnil(L);
+               }
+       }
+       else {
+               return luaL_error (L, "invalid arguments");
+       }
+
+       return 1;
+}
 
 static gint
 lua_config_get_symbol_callback (lua_State *L)