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lua: reduce binding setup and error redaction allocations

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This commit is contained in:
Meo597
2026-10-15 10:54:43 +08:00
parent afa28af4e0
commit d5bfb0a5c7
2 changed files with 11 additions and 6 deletions
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common/lua/program.go
+8 -3
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@@ -165,7 +165,9 @@ func newSandboxedState() *glua.LState {
// Redact addresses before caught errors become readable by the script.
redactError := func(value glua.LValue) glua.LValue {
if message, ok := value.(glua.LString); ok {
return glua.LString(redactMemoryAddresses(string(message)))
if redacted := redactMemoryAddresses(string(message)); redacted != string(message) {
return glua.LString(redacted)
}
}
return value
}
@@ -197,13 +199,13 @@ func newSandboxedState() *glua.LState {
// Keep only time functions, including when os is accessed through require.
osLib := L.GetGlobal(glua.OsLibName).(*glua.LTable)
osLib.ForEach(func(key, _ glua.LValue) {
for key, _ := osLib.Next(glua.LNil); key != glua.LNil; key, _ = osLib.Next(key) {
switch key {
case glua.LString("clock"), glua.LString("date"), glua.LString("difftime"), glua.LString("time"):
default:
osLib.RawSet(key, glua.LNil)
}
})
}
// Prevent module injection through the global package table.
module := L.GetGlobal(glua.LoadLibName).(*glua.LTable)
@@ -230,6 +232,9 @@ func newSandboxedState() *glua.LState {
var memoryAddressPattern = regexp.MustCompile(`0[xX][0-9a-fA-F]+`)
func redactMemoryAddresses(message string) string {
if !strings.Contains(message, "0x") && !strings.Contains(message, "0X") {
return message
}
return memoryAddressPattern.ReplaceAllString(message, "<address>")
}