[Feature] Add task:get_digest method

diff --git a/src/lua/lua_task.c b/src/lua/lua_task.c
index 1f3620b437ae1899eaffaf4693b91cc53638ea49..baba3a001e933c6454a80aa6d6b2ac0764960517 100644 (file)
--- a/src/lua/lua_task.c
+++ b/src/lua/lua_task.c
@@ -655,6 +655,13 @@ LUA_FUNCTION_DEF (task, has_flag);
  */
 LUA_FUNCTION_DEF (task, get_flags);
 
+/***
+ * @method task:get_digest()
+ * Returns message's unique digest (32 hex symbols)
+ * @return {string} hex digest
+ */
+LUA_FUNCTION_DEF (task, get_digest);
+
 static const struct luaL_reg tasklib_f[] = {
        {NULL, NULL}
 };
@@ -730,6 +737,7 @@ static const struct luaL_reg tasklib_m[] = {
        LUA_INTERFACE_DEF (task, get_flags),
        LUA_INTERFACE_DEF (task, has_flag),
        LUA_INTERFACE_DEF (task, set_rmilter_reply),
+       LUA_INTERFACE_DEF (task, get_digest),
        {"__tostring", rspamd_lua_class_tostring},
        {NULL, NULL}
 };
@@ -2753,6 +2761,33 @@ lua_task_get_flags (lua_State *L)
        return 1;
 }
 
+static gint
+lua_task_get_digest (lua_State *L)
+{
+       struct rspamd_task *task = lua_check_task (L, 1);
+       gchar hexbuf[33];
+       gint r;
+
+       if (task) {
+               r = rspamd_encode_hex_buf (task->digest, sizeof (task->digest),
+                               hexbuf, sizeof (hexbuf) - 1);
+
+               if (r > 0) {
+                       hexbuf[r] = '\0';
+                       lua_pushstring (L, hexbuf);
+               }
+               else {
+                       lua_pushnil (L);
+               }
+
+       }
+       else {
+               return luaL_error (L, "invalid arguments");
+       }
+
+       return 1;
+}
+
 static gint
 lua_task_learn (lua_State *L)
 {