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zpub with fingerprint

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* parse core-like HD key [mfp/derivation]zpub
* add unittest for zpub with fingerprint
This commit is contained in:
Stepan Snigirev 2020-07-04 22:25:31 +02:00 • committed by GitHub
parent d27768c656
commit bd39adf8fc
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 26 additions and 0 deletions
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12
class/wallets/abstract-wallet.js
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@ -142,6 +142,18 @@ export class AbstractWallet {
if (this.secret.startsWith('BC1')) this.secret = this.secret.toLowerCase(); if (this.secret.startsWith('BC1')) this.secret = this.secret.toLowerCase();
// [fingerprint/derivation]zpub
let re = /\[([^\]]+)\](.*)/;
let m = this.secret.match(re);
if(m && m.length==3){
let hexFingerprint = m[1].split("/")[0];
if(hexFingerprint.length == 8){
hexFingerprint = Buffer.from(hexFingerprint, 'hex').reverse().toString('hex');
this.masterFingerprint = parseInt(hexFingerprint, 16);
}
this.secret = m[2];
}
try { try {
const parsedSecret = JSON.parse(this.secret); const parsedSecret = JSON.parse(this.secret);
if (parsedSecret && parsedSecret.keystore && parsedSecret.keystore.xpub) { if (parsedSecret && parsedSecret.keystore && parsedSecret.keystore.xpub) {

14
tests/unit/watch-only-wallet.test.js
View file

@ -119,6 +119,20 @@ describe('Watch only wallet', () => {
assert.strictEqual(w.getLabel(), 'Cobo Vault 5271c071'); assert.strictEqual(w.getLabel(), 'Cobo Vault 5271c071');
}); });
it('can import zpub with master fingerprint', async () => {
const zpub = "[8cce63f8/84h/0h/0h]zpub6s2RJ9qAEBW8Abhojs6LyDzF7gttcDr6EsR3Umu2aptZBb45e734rGtt4KqsCMmNyR1EEzUU2ugdVYez2VywQvAbBjUSKn8ho4Zk2c5otkk";
const w = new WatchOnlyWallet();
w.setSecret(zpub);
w.init();
assert.ok(w.valid());
assert.strictEqual(
w.getSecret(),
'zpub6s2RJ9qAEBW8Abhojs6LyDzF7gttcDr6EsR3Umu2aptZBb45e734rGtt4KqsCMmNyR1EEzUU2ugdVYez2VywQvAbBjUSKn8ho4Zk2c5otkk',
);
assert.strictEqual(w.getMasterFingerprint(), 4167290508);
assert.strictEqual(w.getMasterFingerprintHex(), '8cce63f8');
});
it('can combine signed PSBT and prepare it for broadcast', async () => { it('can combine signed PSBT and prepare it for broadcast', async () => {
const w = new WatchOnlyWallet(); const w = new WatchOnlyWallet();
w.setSecret('zpub6rjLjQVqVnj7crz9E4QWj4WgczmEseJq22u2B6k2HZr6NE2PQx3ZYg8BnbjN9kCfHymSeMd2EpwpM5iiz5Nrb3TzvddxW2RMcE3VXdVaXHk'); w.setSecret('zpub6rjLjQVqVnj7crz9E4QWj4WgczmEseJq22u2B6k2HZr6NE2PQx3ZYg8BnbjN9kCfHymSeMd2EpwpM5iiz5Nrb3TzvddxW2RMcE3VXdVaXHk');