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-rw-r--r--mesecons_luacontroller/init.lua33
1 files changed, 27 insertions, 6 deletions
diff --git a/mesecons_luacontroller/init.lua b/mesecons_luacontroller/init.lua
index 4c6ff30..9fa995f 100644
--- a/mesecons_luacontroller/init.lua
+++ b/mesecons_luacontroller/init.lua
@@ -135,10 +135,29 @@ local code_prohibited = function(code)
end
end
-local safeprint = function(param)
+local safe_print = function(param)
print(dump(param))
end
+deep_copy = function(original) --deep copy that removes functions
+ if type(original) == 'table' then --nested table
+ local copy = {}
+ for key, value in next, original, nil do
+ copy[deep_copy(key)] = deep_copy(value)
+ end
+ setmetatable(copy, deep_copy(getmetatable(original)))
+ return copy
+ elseif type(original) == 'function' then --ignore functions
+ return nil
+ else --by-value type
+ return original
+ end
+end
+
+local safe_serialize = function(value)
+ return minetest.serialize(deep_copy(value))
+end
+
local interrupt = function(params)
lc_update(params.pos, {type="interrupt", iid = params.iid})
end
@@ -150,15 +169,16 @@ local getinterrupt = function(pos)
local meta = minetest.env:get_meta(pos)
local interrupts = minetest.deserialize(meta:get_string("lc_interrupts")) or {}
local found = false
+ local search = safe_serialize(iid)
for _, i in ipairs(interrupts) do
- if minetest.serialize(i) == minetest.serialize(iid) then
+ if safe_serialize(i) == search then
found = true
break
end
end
if not found then
table.insert(interrupts, iid)
- meta:set_string("lc_interrupts", minetest.serialize(interrupts))
+ meta:set_string("lc_interrupts", safe_serialize(interrupts))
end
minetest.after(time, interrupt, {pos=pos, iid = iid})
end
@@ -181,7 +201,7 @@ local create_environment = function(pos, mem, event)
local rports = get_real_portstates(pos)
return {
- print = safeprint,
+ print = safe_print,
pin = merge_portstates(vports, rports),
port = vports,
interrupt = getinterrupt(pos),
@@ -272,15 +292,16 @@ local load_memory = function(meta)
end
local save_memory = function(meta, mem)
- meta:set_string("lc_memory", minetest.serialize(mem))
+ meta:set_string("lc_memory", safe_serialize(mem))
end
local interrupt_allow = function (meta, event)
if event.type ~= "interrupt" then return true end
local interrupts = minetest.deserialize(meta:get_string("lc_interrupts")) or {}
+ local search = safe_serialize(event.iid)
for _, i in ipairs(interrupts) do
- if minetest.serialize(i) == minetest.serialize(event.iid) then
+ if safe_serialize(i) == search then
return true
end
end