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Add filters to prevent non-whitelisted craft items from being built

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This commit is contained in:
FaceDeer 2017-11-16 16:53:01 -07:00
parent 317877cda5
commit 123e470544
2 changed files with 19 additions and 3 deletions
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9
nodes/node_builders.lua
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@ -158,9 +158,16 @@ minetest.register_node("digtron:builder", {
end,
allow_metadata_inventory_put = function(pos, listname, index, stack, player)
if minetest.get_item_group(stack:get_name(), "digtron") ~= 0 then
local stack_name = stack:get_name()
if minetest.get_item_group(stack_name, "digtron") ~= 0 then
return 0 -- don't allow builders to be set to build Digtron nodes, they'll just clog the output.
end
if not minetest.registered_nodes[stack_name] and not digtron.whitelisted_on_place(stack_name) then
return 0 -- don't allow craft items unless their on_place is whitelisted.
end
local inv = minetest.get_inventory({type="node", pos=pos})
inv:set_stack(listname, index, stack:take_item(1))
return 0

13
util_item_place_node.lua
View File

@ -32,7 +32,7 @@ local function has_prefix(str, prefix)
return str:sub(1, string.len(prefix)) == prefix
end
local function whitelisted_on_place(item_name)
digtron.whitelisted_on_place = function (item_name)
for listed_item, value in pairs(digtron.builder_on_place_items) do
if item_name == listed_item then return value end
end
@ -76,6 +76,7 @@ local function check_attached_node(p, n)
end
digtron.item_place_node = function(itemstack, placer, place_to, param2)
local item_name = itemstack:get_name()
local def = itemstack:get_definition()
if not def then
return itemstack, false
@ -87,7 +88,7 @@ digtron.item_place_node = function(itemstack, placer, place_to, param2)
pointed_thing.under = {x=place_to.x, y=place_to.y - 1, z=place_to.z}
-- Handle node-specific on_place calls as best we can.
if def.on_place and def.on_place ~= minetest.nodedef_default.on_place and whitelisted_on_place(itemstack:get_name()) then
if def.on_place and def.on_place ~= minetest.nodedef_default.on_place and digtron.whitelisted_on_place(item_name) then
if def.paramtype2 == "facedir" then
pointed_thing.under = vector.add(place_to, minetest.facedir_to_dir(param2))
elseif def.paramtype2 == "wallmounted" then
@ -110,6 +111,14 @@ digtron.item_place_node = function(itemstack, placer, place_to, param2)
return returnstack, success
end
if minetest.registered_nodes[item_name] == nil then
-- Permitted craft items are handled by the node-specific on_place call, above.
-- if we are a craft item and we get here then we're not whitelisted and we should fail.
-- Note that builders should be filtering out craft items like this, but this will protect us
-- just in case.
return itemstack, false
end
local oldnode = minetest.get_node_or_nil(place_to)
--this should never happen, digtron is testing for adjacent unloaded nodes before getting here.