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c2ae53dd07
Implements the NWC-321 (BIP-321 Lightning Payments) pay and receive methods, limited to BOLT-11 instructions: - pay parses the BIP-321 URI, selects the lightning (BOLT-11) instruction and rejects URIs without one (UNSUPPORTED_PAYMENT_INSTRUCTION), validates the invoice network against the node network (UNSUPPORTED_NETWORK), rejects conflicting or invalid amounts, unknown req- parameters and payer_note (undeliverable over BOLT-11) - receive returns a BIP-321 URI containing a single BOLT-11 invoice; a variable amount is rejected as zero-amount invoices are not supported - both methods reuse the existing pay_invoice / make_invoice scopes Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
76 lines
2.3 KiB
Go
76 lines
2.3 KiB
Go
package controllers
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import (
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"context"
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"github.com/getAlby/go-nostr"
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"github.com/getAlby/hub/constants"
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"github.com/getAlby/hub/logger"
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"github.com/getAlby/hub/nip47/models"
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"github.com/sirupsen/logrus"
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)
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type receiveParams struct {
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Amount *uint64 `json:"amount"`
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Description string `json:"description"`
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Metadata map[string]interface{} `json:"metadata,omitempty"`
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}
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type receiveResult struct {
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Bip321 string `json:"bip321"`
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TransactionId string `json:"transaction_id,omitempty"`
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}
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// HandleReceiveEvent handles the NWC-321 receive method. Currently only
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// BOLT-11 instructions (the "lightning" URI parameter) are returned.
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func (controller *nip47Controller) HandleReceiveEvent(ctx context.Context, nip47Request *models.Request, requestEventId uint, appId uint, publishResponse publishFunc) {
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receiveParams := &receiveParams{}
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resp := decodeRequest(nip47Request, receiveParams)
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if resp != nil {
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publishResponse(resp, nostr.Tags{})
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return
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}
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if receiveParams.Amount == nil {
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// variable-amount (zero-amount) invoices are not supported
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publishResponse(&models.Response{
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ResultType: nip47Request.Method,
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Error: &models.Error{
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Code: constants.ERROR_BAD_REQUEST,
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Message: "amount is required",
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},
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}, nostr.Tags{})
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return
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}
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logger.Logger.WithFields(logrus.Fields{
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"request_event_id": requestEventId,
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"app_id": appId,
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"amount": *receiveParams.Amount,
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"description": receiveParams.Description,
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}).Debug("Handling receive request")
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transaction, err := controller.transactionsService.MakeInvoice(ctx, *receiveParams.Amount, receiveParams.Description, "", 0, receiveParams.Metadata, controller.lnClient, &appId, &requestEventId, nil)
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if err != nil {
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logger.Logger.WithFields(logrus.Fields{
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"request_event_id": requestEventId,
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"app_id": appId,
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"amount": *receiveParams.Amount,
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"description": receiveParams.Description,
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}).Infof("Failed to make invoice: %v", err)
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publishResponse(&models.Response{
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ResultType: nip47Request.Method,
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Error: mapNip47Error(err),
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}, nostr.Tags{})
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return
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}
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publishResponse(&models.Response{
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ResultType: nip47Request.Method,
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Result: receiveResult{
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Bip321: "bitcoin:?lightning=" + transaction.PaymentRequest,
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TransactionId: transaction.PaymentHash,
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},
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}, nostr.Tags{})
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}
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