83 lines
2.3 KiB
Go
83 lines
2.3 KiB
Go
package libwallet
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import (
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"github.com/lightningnetwork/lnd/lnwire"
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"github.com/muun/libwallet/lnurl"
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)
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type LNURLEvent struct {
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Code int
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Message string
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Metadata *LNURLEventMetadata
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}
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type LNURLEventMetadata struct {
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Host string
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Invoice string
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RequestId string
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}
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const (
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LNURLErrDecode = lnurl.ErrDecode
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LNURLErrUnsafeURL = lnurl.ErrUnsafeURL
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LNURLErrUnreachable = lnurl.ErrUnreachable
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LNURLErrInvalidResponse = lnurl.ErrInvalidResponse
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LNURLErrResponse = lnurl.ErrResponse
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LNURLErrUnknown = lnurl.ErrUnknown
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LNURLErrWrongTag = lnurl.ErrWrongTag
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LNURLErrNoAvailableBalance = lnurl.ErrNoAvailableBalance
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LNURLErrRequestExpired = lnurl.ErrRequestExpired
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LNURLErrNoRoute = lnurl.ErrNoRoute
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LNURLErrTorNotSupported = lnurl.ErrTorNotSupported
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LNURLErrAlreadyUsed = lnurl.ErrAlreadyUsed
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LNURLErrForbidden = lnurl.ErrForbidden
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LNURLStatusContacting = lnurl.StatusContacting
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LNURLStatusInvoiceCreated = lnurl.StatusInvoiceCreated
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LNURLStatusReceiving = lnurl.StatusReceiving
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)
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type LNURLListener interface {
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OnUpdate(e *LNURLEvent)
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OnError(e *LNURLEvent)
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}
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func LNURLValidate(qr string) bool {
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return lnurl.Validate(qr)
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}
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// Withdraw will parse an LNURL withdraw QR and begin a withdraw process.
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// Caller must wait for the actual payment after this function has notified success.
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func LNURLWithdraw(net *Network, userKey *HDPrivateKey, routeHints *RouteHints, qr string, listener LNURLListener) {
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// TODO: consider making a struct out of the (net, userKey, routeHints) data
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// that can be used for creating invoices
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createInvoiceFunc := func(amt lnwire.MilliSatoshi, desc string, host string) (string, error) {
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opts := &InvoiceOptions{
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AmountMSat: int64(amt),
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Description: desc,
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Metadata: &OperationMetadata{
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LnurlSender: host,
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},
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}
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return CreateInvoice(net, userKey, routeHints, opts)
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}
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allowUnsafe := net != Mainnet()
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go lnurl.Withdraw(qr, createInvoiceFunc, allowUnsafe, func(e *lnurl.Event) {
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event := &LNURLEvent{
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Code: e.Code,
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Message: e.Message,
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Metadata: &LNURLEventMetadata{
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Host: e.Metadata.Host,
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Invoice: e.Metadata.Invoice,
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RequestId: e.Metadata.RequestId,
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},
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}
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if event.Code < 100 {
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listener.OnError(event)
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} else {
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listener.OnUpdate(event)
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}
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})
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}
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