Builtin: Add basic_privs setting

builtin/game/chatcommands.lua

@@ -181,8 +181,10 @@ core.register_chatcommand("grant", {
 		end
 		local privs = core.get_player_privs(grantname)
 		local privs_unknown = ""
+		local basic_privs =
+			core.string_to_privs(core.setting_get("basic_privs") or "interact,shout")
 		for priv, _ in pairs(grantprivs) do
-			if priv ~= "interact" and priv ~= "shout" and
+			if not basic_privs[priv] and
 					not core.check_player_privs(name, {privs=true}) then
 				return false, "Your privileges are insufficient."
 			end
@@ -223,8 +225,10 @@ core.register_chatcommand("revoke", {
 		end
 		local revoke_privs = core.string_to_privs(revoke_priv_str)
 		local privs = core.get_player_privs(revoke_name)
+		local basic_privs =
+			core.string_to_privs(core.setting_get("basic_privs") or "interact,shout")
 		for priv, _ in pairs(revoke_privs) do
-			if priv ~= "interact" and priv ~= "shout" and
+			if not basic_privs[priv] and
 					not core.check_player_privs(name, {privs=true}) then
 				return false, "Your privileges are insufficient."
 			end

builtin/settingtypes.txt

@@ -691,6 +691,9 @@ default_password (Default password) string
 #    See /privs in game for a full list on your server and mod configuration.
 default_privs (Default privileges) string interact, shout
 
+#    Privileges that players with basic_privs can grant
+basic_privs (Basic Privileges) string interact, shout
+
 #    Whether players are shown to clients without any range limit.
 #    Deprecated, use the setting player_transfer_distance instead.
 unlimited_player_transfer_distance (Unlimited player transfer distance) bool true

doc/lua_api.txt

@@ -1924,6 +1924,7 @@ Call these functions only at load time!
 * `minetest.register_privilege(name, definition)`
     * `definition`: `"description text"`
     * `definition`: `{ description = "description text", give_to_singleplayer = boolean, -- default: true }`
+    * To allow players with basic_privs to grant, see basic_privs minetest.conf setting.
 * `minetest.register_authentication_handler(handler)`
     * See `minetest.builtin_auth_handler` in `builtin.lua` for reference
 

minetest.conf.example

@@ -826,6 +826,10 @@
 #    type: string
 # default_privs = interact, shout
 
+#    Privileges that players with basic_privs can grant
+#    type: string
+# basic_privs = interact, shout
+
 #    Whether players are shown to clients without any range limit.
 #    Deprecated, use the setting player_transfer_distance instead.
 #    type: bool
@@ -1513,4 +1517,3 @@
 
 #    type: string
 # modstore_details_url = https://forum.minetest.net/mmdb/mod/*/
-