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zpay32/invoice: remove unknown required fbit check from decode

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This commit removes the unknown required feature bit check from the
invoice decoding logic. This allows greater utility to users of the
decodepayreq rpc since it can provide inspection of otherwise invalid
invoices. In the prior commit, this check moved into our path finding
logic, so invalid features taken from an invoice will instead cause a
failure when attempting to pay.
This commit is contained in:
Conner Fromknecht 2020-01-08 12:25:21 -08:00
parent c7a241fc59
commit b9b66419ff
No known key found for this signature in database
GPG Key ID: E7D737B67FA592C7
2 changed files with 4 additions and 12 deletions
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9
zpay32/invoice.go
View File

@ -956,14 +956,7 @@ func parseFeatures(data []byte) (*lnwire.FeatureVector, error) {
return nil, err
}
fv := lnwire.NewFeatureVector(rawFeatures, lnwire.Features)
unknownFeatures := fv.UnknownRequiredFeatures()
if len(unknownFeatures) > 0 {
return nil, fmt.Errorf("invoice contains unknown required "+
"features: %v", unknownFeatures)
}
return fv, nil
return lnwire.NewFeatureVector(rawFeatures, lnwire.Features), nil
}
// writeTaggedFields writes the non-nil tagged fields of the Invoice to the

7
zpay32/invoice_test.go
View File

@ -534,9 +534,8 @@ func TestDecodeEncode(t *testing.T) {
{
// On mainnet, please send $30 coffee beans supporting
// features 9, 15, 99, and 100, using secret 0x11...
encodedInvoice: "lnbc25m1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdq5vdhkven9v5sxyetpdeessp5zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zygs9q4psqqqqqqqqqqqqqqqpqqqqu7fz6pjqczdm3jp3qps7xntj2w2mm70e0ckhw3c5xk9p36pvk3sewn7ncaex6uzfq0vtqzy28se6pcwn790vxex7xystzumhg55p6qq9wq7td",
valid: false,
skipEncoding: true,
encodedInvoice: "lnbc25m1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdq5vdhkven9v5sxyetpdeessp5zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zygs9q4psqqqqqqqqqqqqqqqpqsqq40wa3khl49yue3zsgm26jrepqr2eghqlx86rttutve3ugd05em86nsefzh4pfurpd9ek9w2vp95zxqnfe2u7ckudyahsa52q66tgzcp6t2dyk",
valid: true,
decodedInvoice: func() *Invoice {
return &Invoice{
Net: &chaincfg.MainNetParams,
@ -710,7 +709,7 @@ func TestDecodeEncode(t *testing.T) {
}
if test.valid {
if err := compareInvoices(test.decodedInvoice(), invoice); err != nil {
if err := compareInvoices(decodedInvoice, invoice); err != nil {
t.Errorf("Invoice decoding result %d not as expected: %v", i, err)
return
}