[Feature] Add some time manipulation functions for lua APi

diff --git a/src/lua/lua_util.c b/src/lua/lua_util.c
index 059b47cfc7edb0cc4c7c7d3ed1a23a43257101a2..1506676eac5518f83a81759e2a7d3a682960c05e 100644 (file)
--- a/src/lua/lua_util.c
+++ b/src/lua/lua_util.c
@@ -231,6 +231,21 @@ LUA_FUNCTION_DEF (util, strequal_caseless);
  */
 LUA_FUNCTION_DEF (util, get_ticks);
 
+/***
+ * @function util.get_time()
+ * Returns current time as unix time in floating point representation
+ * @return {number} number of seconds since 01.01.1970
+ */
+LUA_FUNCTION_DEF (util, get_time);
+
+/***
+ * @function util.time_to_string(seconds)
+ * Converts time from Unix time to HTTP date format
+ * @param {number} seconds unix timestamp
+ * @return {string} date as HTTP date
+ */
+LUA_FUNCTION_DEF (util, time_to_string);
+
 /***
  * @function util.stat(fname)
  * Performs stat(2) on a specified filepath and returns table of values
@@ -326,6 +341,8 @@ static const struct luaL_reg utillib_f[] = {
        LUA_INTERFACE_DEF (util, strcasecmp_ascii),
        LUA_INTERFACE_DEF (util, strequal_caseless),
        LUA_INTERFACE_DEF (util, get_ticks),
+       LUA_INTERFACE_DEF (util, get_time),
+       LUA_INTERFACE_DEF (util, time_to_string),
        LUA_INTERFACE_DEF (util, stat),
        LUA_INTERFACE_DEF (util, unlink),
        LUA_INTERFACE_DEF (util, lock_file),
@@ -1151,6 +1168,49 @@ lua_util_get_ticks (lua_State *L)
        return 1;
 }
 
+static gint
+lua_util_get_time (lua_State *L)
+{
+       gdouble seconds;
+       struct timeval tv;
+
+       if (gettimeofday (&tv, NULL) == 0) {
+               seconds = tv_to_double (&tv);
+       }
+       else {
+               seconds = time (NULL);
+       }
+
+       lua_pushnumber (L, seconds);
+
+       return 1;
+}
+
+static gint
+lua_util_time_to_string (lua_State *L)
+{
+       gdouble seconds;
+       struct timeval tv;
+       char timebuf[128];
+
+       if (lua_isnumber (L, 1)) {
+               seconds = lua_tonumber (L, 1);
+       }
+       else {
+               if (gettimeofday (&tv, NULL) == 0) {
+                       seconds = tv_to_double (&tv);
+               }
+               else {
+                       seconds = time (NULL);
+               }
+       }
+
+       rspamd_http_date_format (timebuf, sizeof (timebuf), seconds);
+       lua_pushstring (L, timebuf);
+
+       return 1;
+}
+
 static gint
 lua_util_stat (lua_State *L)
 {