Fix chest formspec protection (#540)

Hugo Locurcio

2020-04-26 4a9ad94bf9560770c0efded0c8558c4747dc887f

Fix chest formspec protection (#540)

This closes #539.

 technic_chests/register.lua

@@ -159,6 +159,16 @@
    return function(pos, formname, fields, sender)
        local meta = minetest.get_meta(pos)
        local page = "main"

        local owner = meta:get_string("owner")
        if owner ~= "" then
            -- prevent modification of locked chests
            if owner ~= sender:get_player_name() then return end
        elseif not fields.quit then
            -- prevent modification of protected chests
            if minetest.is_protected(pos, sender:get_player_name()) then return end
        end

        if fields.sort or (data.autosort and fields.quit and meta:get_int("autosort") == 1) then
            sort_inventory(meta:get_inventory())
        end