add protection and ownership checks to default metal sign

diff --git a/init.lua b/init.lua
index 9daa4ca702d805c5d6542972e8e14d82d9ea48b6..360bc024befa8393a0de82f867a6504b616abb43 100644 (file)
--- a/init.lua
+++ b/init.lua
@@ -920,38 +920,52 @@ minetest.register_node(":locked_sign:sign_wall_locked", {
 
 -- default metal sign, if defined
 
-if minetest.registered_nodes["default:sign_wall_steel"] then
-       minetest.register_node(":"..default_sign_metal, {
-               description = S("Sign"),
-               inventory_image = default_sign_metal_image,
-               wield_image = default_sign_metal_image,
-               node_placement_prediction = "",
-               sunlight_propagates = true,
-               paramtype = "light",
-               paramtype2 = "wallmounted",
-               drawtype = "nodebox",
-               node_box = signs_lib.regular_wall_sign_model.nodebox,
-               tiles = {"signs_wall_sign_metal.png"},
-               groups = sign_groups,
-
-               on_place = function(itemstack, placer, pointed_thing)
-                       return signs_lib.determine_sign_type(itemstack, placer, pointed_thing)
-               end,
-               on_construct = function(pos)
-                       signs_lib.construct_sign(pos)
-               end,
-               on_destruct = function(pos)
-                       signs_lib.destruct_sign(pos)
-               end,
-               on_receive_fields = function(pos, formname, fields, sender)
-                       signs_lib.receive_fields(pos, formname, fields, sender)
-               end,
-               on_punch = function(pos, node, puncher)
-                       signs_lib.update_sign(pos,nil,nil,node)
-               end,
-               on_rotate = signs_lib.wallmounted_rotate
-       })
-end
+minetest.register_node(":"..default_sign_metal, {
+       description = S("Sign"),
+       inventory_image = default_sign_metal_image,
+       wield_image = default_sign_metal_image,
+       node_placement_prediction = "",
+       sunlight_propagates = true,
+       paramtype = "light",
+       paramtype2 = "wallmounted",
+       drawtype = "nodebox",
+       node_box = signs_lib.regular_wall_sign_model.nodebox,
+       tiles = {"signs_wall_sign_metal.png"},
+       groups = sign_groups,
+
+       on_place = function(itemstack, placer, pointed_thing)
+               return signs_lib.determine_sign_type(itemstack, placer, pointed_thing)
+       end,
+       on_construct = function(pos)
+               signs_lib.construct_sign(pos)
+       end,
+       on_destruct = function(pos)
+               signs_lib.destruct_sign(pos)
+       end,
+       on_receive_fields = function(pos, formname, fields, sender)
+               local meta = minetest.get_meta(pos)
+               local owner = meta:get_string("owner")
+               local pname = sender:get_player_name() or ""
+               if pname ~= owner and pname ~= minetest.settings:get("name")
+                 and not minetest.check_player_privs(pname, {sign_editor=true}) then
+                       return
+               end
+               signs_lib.receive_fields(pos, formname, fields, sender, true)
+       end,
+       on_punch = function(pos, node, puncher)
+               signs_lib.update_sign(pos,nil,nil,node)
+       end,
+       on_rotate = function(pos, node, user, mode)
+               local meta = minetest.get_meta(pos)
+               local owner = meta:get_string("owner")
+               if owner == user:get_player_name() then
+                       signs_lib.wallmounted_rotate(pos, node, user, mode)
+               else
+                       return false
+               end
+       end
+})
+
 
 -- metal, colored signs
 if enable_colored_metal_signs then