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Add Taproot transaction feature tooltip with fee saving information

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This commit is contained in:
Antoni Spaanderman
2022-07-24 00:08:53 +02:00
parent ecbdee0087
commit 469c561acb
4 changed files with 122 additions and 60 deletions
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74
frontend/src/app/components/address-labels/address-labels.component.ts
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@@ -98,44 +98,52 @@ export class AddressLabelsComponent implements OnChanges {
}
detectMultisig(script: string) {
if (!script) {
return;
}
const ops = script.split(' ');
if (ops.length < 3 || ops.pop() !== 'OP_CHECKMULTISIG') {
return;
}
const opN = ops.pop();
if (!opN.startsWith('OP_PUSHNUM_')) {
return;
}
const n = parseInt(opN.match(/[0-9]+/)[0], 10);
if (ops.length < n * 2 + 1) {
return;
}
// pop n public keys
for (let i = 0; i < n; i++) {
if (!/^0((2|3)\w{64}|4\w{128})$/.test(ops.pop())) {
return;
}
if (!/^OP_PUSHBYTES_(33|65)$/.test(ops.pop())) {
return;
}
}
const opM = ops.pop();
if (!opM.startsWith('OP_PUSHNUM_')) {
return;
}
const m = parseInt(opM.match(/[0-9]+/)[0], 10);
const ms = parseMultisigScript(script);
if (ops.length) {
return;
if (ms) {
this.label = $localize`:@@address-label.multisig:Multisig ${ms.m}:multisigM: of ${ms.n}:multisigN:`;
}
this.label = $localize`:@@address-label.multisig:Multisig ${m}:multisigM: of ${n}:multisigN:`;
}
handleVout() {
this.detectMultisig(this.vout.scriptpubkey_asm);
}
}
export function parseMultisigScript(script: string): void | { m: number, n: number } {
if (!script) {
return;
}
const ops = script.split(' ');
if (ops.length < 3 || ops.pop() !== 'OP_CHECKMULTISIG') {
return;
}
const opN = ops.pop();
if (!opN.startsWith('OP_PUSHNUM_')) {
return;
}
const n = parseInt(opN.match(/[0-9]+/)[0], 10);
if (ops.length < n * 2 + 1) {
return;
}
// pop n public keys
for (let i = 0; i < n; i++) {
if (!/^0((2|3)\w{64}|4\w{128})$/.test(ops.pop())) {
return;
}
if (!/^OP_PUSHBYTES_(33|65)$/.test(ops.pop())) {
return;
}
}
const opM = ops.pop();
if (!opM.startsWith('OP_PUSHNUM_')) {
return;
}
const m = parseInt(opM.match(/[0-9]+/)[0], 10);
if (ops.length) {
return;
}
return { m, n };
}