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nip60: fixes, actual Cashu stuff and a wallet.Receive() method.

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This commit is contained in:
fiatjaf
2025-01-27 16:33:33 -03:00
parent 3334f7a48b
commit c6747cdf44
11 changed files with 977 additions and 42 deletions
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37
nip60/wallet.go
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@@ -2,10 +2,13 @@ package nip60
import (
"context"
"encoding/hex"
"encoding/json"
"fmt"
"strconv"
"github.com/btcsuite/btcd/btcec/v2"
"github.com/decred/dcrd/dcrec/secp256k1/v4"
"github.com/nbd-wtf/go-nostr"
)
@@ -13,19 +16,20 @@ type Wallet struct {
Identifier string
Description string
Name string
PrivateKey string
PrivateKey *btcec.PrivateKey
PublicKey *btcec.PublicKey
Relays []string
Mints []string
Tokens []Token
History []HistoryEntry
temporaryBalance uint32
temporaryBalance uint64
}
func (w Wallet) Balance() uint32 {
var sum uint32
func (w Wallet) Balance() uint64 {
var sum uint64
for _, token := range w.Tokens {
sum += token.Amount()
sum += token.Proofs.Amount()
}
return sum
}
@@ -44,7 +48,7 @@ func (w Wallet) ToPublishableEvents(ctx context.Context, kr nostr.Keyer, skipExi
evt.Content, err = kr.Encrypt(
ctx,
fmt.Sprintf(`[["balance","%d","sat"],["privkey","%s"]]`, w.Balance(), w.PrivateKey),
fmt.Sprintf(`[["balance","%d","sat"],["privkey","%x"]]`, w.Balance(), w.PrivateKey.Serialize()),
pk,
)
if err != nil {
@@ -64,6 +68,9 @@ func (w Wallet) ToPublishableEvents(ctx context.Context, kr nostr.Keyer, skipExi
for _, relay := range w.Relays {
evt.Tags = append(evt.Tags, nostr.Tag{"relay", relay})
}
for _, mint := range w.Mints {
evt.Tags = append(evt.Tags, nostr.Tag{"mint", mint})
}
err = kr.SignEvent(ctx, &evt)
if err != nil {
@@ -141,6 +148,7 @@ func (w *Wallet) parse(ctx context.Context, kr nostr.Keyer, evt *nostr.Event) er
}
switch tag[0] {
case "d":
essential++
w.Identifier = tag[1]
case "name":
w.Name = tag[1]
@@ -154,9 +162,16 @@ func (w *Wallet) parse(ctx context.Context, kr nostr.Keyer, evt *nostr.Event) er
case "relay":
w.Relays = append(w.Relays, tag[1])
case "mint":
essential++
w.Mints = append(w.Mints, tag[1])
case "privkey":
w.PrivateKey = tag[1]
essential++
skb, err := hex.DecodeString(tag[1])
if err != nil {
return fmt.Errorf("failed to parse private key: %w", err)
}
w.PrivateKey = secp256k1.PrivKeyFromBytes(skb)
w.PublicKey = w.PrivateKey.PubKey()
case "balance":
if len(tag) < 3 {
return fmt.Errorf("'balance' tag must have at least 3 items")
@@ -164,13 +179,17 @@ func (w *Wallet) parse(ctx context.Context, kr nostr.Keyer, evt *nostr.Event) er
if tag[2] != "sat" {
return fmt.Errorf("only 'sat' wallets are supported")
}
v, err := strconv.ParseUint(tag[1], 10, 32)
v, err := strconv.ParseUint(tag[1], 10, 64)
if err != nil {
return fmt.Errorf("invalid 'balance' %s: %w", tag[1], err)
}
w.temporaryBalance = uint32(v)
w.temporaryBalance = v
}
}
if essential < 4 {
return fmt.Errorf("missing essential tags %s", evt)
}
return nil
}