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router: preserve Lua states after recoverable route errors & refactor

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This commit is contained in:
Meo597
2026-10-05 06:38:24 +08:00
parent 248cb666f3
commit 52be8f8170
4 changed files with 189 additions and 154 deletions
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app/router/lua.go
+28 -21
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@@ -106,41 +106,48 @@ func checkLuaContext(L *lua.LState) routing.Context {
return ctx
}
// callLuaHook invokes HandleRoute in the supplied state.
func (r *Router) callLuaHook(L *lua.LState, routeCtx routing.Context) (string, string, error) {
top := L.GetTop()
defer L.SetTop(top)
// callLuaRoute runs HandleRoute and leaves (outboundTag, ruleTag, err) on the stack.
func callLuaRoute(L *lua.LState, ctx routing.Context) error {
fn := L.GetGlobal("HandleRoute")
if fn.Type() != lua.LTFunction {
return "", "", errors.New("routing script must define HandleRoute(...)")
return errors.New("routing script must define HandleRoute(...)")
}
value := L.NewUserData()
value.Value = routeCtx
value.Value = ctx
L.SetMetatable(value, L.GetTypeMetatable(luaContextType))
if err := L.CallByParam(lua.P{Fn: fn, NRet: 3, Protect: true},
value, lua.LString(routeCtx.GetInboundTag()), lua.LNumber(routeCtx.GetSourcePort()),
lua.LNumber(routeCtx.GetTargetPort()), lua.LNumber(routeCtx.GetLocalPort()),
lua.LString(strings.ToLower(routeCtx.GetTargetDomain())), lua.LNumber(routeCtx.GetNetwork()),
lua.LString(routeCtx.GetProtocol()), lua.LString(routeCtx.GetUser()),
lua.LNumber(routeCtx.GetVlessRoute()), lua.LBool(routeCtx.GetSkipDNSResolve())); err != nil {
return "", "", err
}
return readLuaRouteResult(L.Get(-3), L.Get(-2), L.Get(-1))
return L.CallByParam(lua.P{Fn: fn, NRet: 3, Protect: true},
value,
lua.LString(ctx.GetInboundTag()),
lua.LNumber(ctx.GetSourcePort()),
lua.LNumber(ctx.GetTargetPort()),
lua.LNumber(ctx.GetLocalPort()),
lua.LString(strings.ToLower(ctx.GetTargetDomain())),
lua.LNumber(ctx.GetNetwork()),
lua.LString(ctx.GetProtocol()),
lua.LString(ctx.GetUser()),
lua.LNumber(ctx.GetVlessRoute()),
lua.LBool(ctx.GetSkipDNSResolve()))
}
func readLuaRouteResult(tagValue, ruleValue, errorValue lua.LValue) (string, string, error) {
if err := xlua.ReadError(errorValue, "routing script error must be an error or string"); err != nil {
// readLuaRouteResult reads (outboundTag, ruleTag, err) from the stack.
func readLuaRouteResult(L *lua.LState) (string, string, error) {
if err := xlua.ReadError(L.Get(-1), "routing script error must be an error or string"); err != nil {
return "", "", err
}
tag, err := xlua.ReadOptionalString(tagValue, "routing script outboundTag must be a string or nil")
if err != nil || tag == "" {
outboundTag, err := xlua.ReadOptionalString(L.Get(-3), "routing script outboundTag must be a string or nil")
if err != nil || outboundTag == "" {
return "", "", err
}
ruleTag, err := xlua.ReadOptionalString(ruleValue, "routing script ruleTag must be a string")
ruleTag, err := xlua.ReadOptionalString(L.Get(-2), "routing script ruleTag must be a string")
if err != nil {
return "", "", err
}
return tag, ruleTag, nil
return outboundTag, ruleTag, nil
}
type processFinder func(string, string, uint16, string, uint16) (int, string, string, error)