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move nexthop logic inside the interceptor

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This commit is contained in:
Jesse de Wit
2023-06-15 10:50:20 +02:00
parent 898b69f9a7
commit 205d39d715
6 changed files with 87 additions and 39 deletions
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21
interceptor/intercept.go
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@@ -73,7 +73,7 @@ func NewInterceptor(
}
}
func (i *Interceptor) Intercept(nextHop string, reqPaymentHash []byte, reqOutgoingAmountMsat uint64, reqOutgoingExpiry uint32, reqIncomingExpiry uint32) InterceptResult {
func (i *Interceptor) Intercept(scid *basetypes.ShortChannelID, reqPaymentHash []byte, reqOutgoingAmountMsat uint64, reqOutgoingExpiry uint32, reqIncomingExpiry uint32) InterceptResult {
reqPaymentHashStr := hex.EncodeToString(reqPaymentHash)
resp, _, _ := i.payHashGroup.Do(reqPaymentHashStr, func() (interface{}, error) {
token, params, paymentHash, paymentSecret, destination, incomingAmountMsat, outgoingAmountMsat, channelPoint, tag, err := i.store.PaymentInfo(reqPaymentHash)
@@ -85,7 +85,24 @@ func (i *Interceptor) Intercept(nextHop string, reqPaymentHash []byte, reqOutgoi
}, nil
}
if paymentSecret == nil || (nextHop != "<unknown>" && nextHop != hex.EncodeToString(destination)) {
nextHop, err := i.client.GetPeerId(scid)
if err != nil {
log.Printf("GetPeerId(%s) error: %v", scid.ToString(), err)
return InterceptResult{
Action: INTERCEPT_FAIL_HTLC_WITH_CODE,
FailureCode: FAILURE_TEMPORARY_NODE_FAILURE,
}, nil
}
// If the payment was registered, but the next hop is not the destination
// that means we are not the last hop of the payment, so we'll just forward.
if destination != nil && nextHop != nil && !bytes.Equal(nextHop, destination) {
return InterceptResult{
Action: INTERCEPT_RESUME,
}, nil
}
if paymentSecret == nil {
return InterceptResult{
Action: INTERCEPT_RESUME,
}, nil