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reusable open channel logic and share macaroon

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This commit is contained in:
Jesse de Wit
2022-12-03 10:47:47 +01:00
parent b3c5b94531
commit e31a4c43f3
8 changed files with 249 additions and 248 deletions
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58
cln_interceptor.go
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@@ -8,7 +8,6 @@ import (
"log"
"os"
"sync"
"time"
sphinx "github.com/lightningnetwork/lightning-onion"
"github.com/lightningnetwork/lnd/record"
@@ -100,8 +99,8 @@ func (i *ClnHtlcInterceptor) OnHtlcAccepted(event *glightning.HtlcAcceptedEvent)
interceptResult := intercept(paymentHashBytes, onion.ForwardAmount, uint32(event.Htlc.CltvExpiry))
switch interceptResult.action {
case INTERCEPT_RESUME_OR_CANCEL:
return i.resumeOrCancel(event, interceptResult), nil
case INTERCEPT_RESUME_WITH_ONION:
return i.resumeWithOnion(event, interceptResult), nil
case INTERCEPT_FAIL_HTLC:
return event.Fail(uint16(FAILURE_TEMPORARY_CHANNEL_FAILURE)), nil
case INTERCEPT_FAIL_HTLC_WITH_CODE:
@@ -113,51 +112,16 @@ func (i *ClnHtlcInterceptor) OnHtlcAccepted(event *glightning.HtlcAcceptedEvent)
}
}
func (i *ClnHtlcInterceptor) resumeOrCancel(event *glightning.HtlcAcceptedEvent, interceptResult interceptResult) *glightning.HtlcAcceptedResponse {
deadline := time.Now().Add(60 * time.Second)
for {
chanResult, _ := i.client.GetChannel(interceptResult.destination, *interceptResult.channelPoint)
if chanResult != nil {
log.Printf("channel opended successfully alias: %v, confirmed: %v", chanResult.InitialChannelID.ToString(), chanResult.ConfirmedChannelID.ToString())
err := insertChannel(
uint64(chanResult.InitialChannelID),
uint64(chanResult.ConfirmedChannelID),
interceptResult.channelPoint.String(),
interceptResult.destination,
time.Now(),
)
if err != nil {
log.Printf("insertChannel error: %v", err)
return event.Fail(uint16(FAILURE_TEMPORARY_CHANNEL_FAILURE))
}
channelID := uint64(chanResult.ConfirmedChannelID)
if channelID == 0 {
channelID = uint64(chanResult.InitialChannelID)
}
//decoding and encoding onion with alias in type 6 record.
newPayload, err := encodePayloadWithNextHop(event.Onion.Payload, channelID)
if err != nil {
log.Printf("encodePayloadWithNextHop error: %v", err)
return event.Fail(uint16(FAILURE_TEMPORARY_CHANNEL_FAILURE))
}
log.Printf("forwarding htlc to the destination node and a new private channel was opened")
return event.ContinueWithPayload(newPayload)
}
log.Printf("waiting for channel to get opened.... %v\n", interceptResult.destination)
if time.Now().After(deadline) {
log.Printf("Stop retrying getChannel(%v, %v)", interceptResult.destination, interceptResult.channelPoint.String())
break
}
time.Sleep(1 * time.Second)
func (i *ClnHtlcInterceptor) resumeWithOnion(event *glightning.HtlcAcceptedEvent, interceptResult interceptResult) *glightning.HtlcAcceptedResponse {
//decoding and encoding onion with alias in type 6 record.
newPayload, err := encodePayloadWithNextHop(event.Onion.Payload, interceptResult.channelId)
if err != nil {
log.Printf("encodePayloadWithNextHop error: %v", err)
return event.Fail(uint16(FAILURE_TEMPORARY_CHANNEL_FAILURE))
}
log.Printf("Error: Channel failed to opened... timed out. ")
return event.Fail(uint16(FAILURE_TEMPORARY_CHANNEL_FAILURE))
log.Printf("forwarding htlc to the destination node and a new private channel was opened")
return event.ContinueWithPayload(newPayload)
}
func encodePayloadWithNextHop(payloadHex string, channelId uint64) (string, error) {