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Address & script parsing refactor

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This commit is contained in:
Mononaut
2024-06-12 04:16:58 +00:00
parent 3b419be341
commit 7dfdb5553e
9 changed files with 340 additions and 94 deletions
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87
frontend/src/app/components/address-labels/address-labels.component.ts
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@@ -1,7 +1,7 @@
import { Component, ChangeDetectionStrategy, Input, OnChanges } from '@angular/core';
import { Vin, Vout } from '../../interfaces/electrs.interface';
import { StateService } from '../../services/state.service';
import { parseMultisigScript } from '../../bitcoin.utils';
import { AddressType, AddressTypeInfo } from '../../shared/address-utils';
@Component({
selector: 'app-address-labels',
@@ -12,6 +12,7 @@ import { parseMultisigScript } from '../../bitcoin.utils';
export class AddressLabelsComponent implements OnChanges {
network = '';
@Input() address: AddressTypeInfo;
@Input() vin: Vin;
@Input() vout: Vout;
@Input() channel: any;
@@ -28,10 +29,10 @@ export class AddressLabelsComponent implements OnChanges {
ngOnChanges() {
if (this.channel) {
this.handleChannel();
} else if (this.address) {
this.handleAddress();
} else if (this.vin) {
this.handleVin();
} else if (this.vout) {
this.handleVout();
}
}
@@ -42,74 +43,22 @@ export class AddressLabelsComponent implements OnChanges {
this.label = `Channel ${type}: ${leftNodeName} <> ${rightNodeName}`;
}
handleAddress() {
if (this.address?.scripts.size) {
const script = this.address?.scripts.values().next().value;
if (script.template?.label) {
this.label = script.template.label;
}
}
}
handleVin() {
if (this.vin.inner_witnessscript_asm) {
if (this.vin.inner_witnessscript_asm.indexOf('OP_DEPTH OP_PUSHNUM_12 OP_EQUAL OP_IF OP_PUSHNUM_11') === 0 || this.vin.inner_witnessscript_asm.indexOf('OP_PUSHNUM_15 OP_CHECKMULTISIG OP_IFDUP OP_NOTIF OP_PUSHBYTES_2') === 1259) {
if (this.vin.witness.length > 11) {
this.label = 'Liquid Peg Out';
} else {
this.label = 'Emergency Liquid Peg Out';
}
return;
const address = new AddressTypeInfo(this.network || 'mainnet', this.vin.prevout?.scriptpubkey_address, this.vin.prevout?.scriptpubkey_type as AddressType, [this.vin])
if (address?.scripts.size) {
const script = address?.scripts.values().next().value;
if (script.template?.label) {
this.label = script.template.label;
}
const topElement = this.vin.witness[this.vin.witness.length - 2];
if (/^OP_IF OP_PUSHBYTES_33 \w{66} OP_ELSE OP_PUSH(NUM_\d+|BYTES_(1 \w{2}|2 \w{4})) OP_CSV OP_DROP OP_PUSHBYTES_33 \w{66} OP_ENDIF OP_CHECKSIG$/.test(this.vin.inner_witnessscript_asm)) {
// https://github.com/lightning/bolts/blob/master/03-transactions.md#commitment-transaction-outputs
if (topElement === '01') {
// top element is '01' to get in the revocation path
this.label = 'Revoked Lightning Force Close';
} else {
// top element is '', this is a delayed to_local output
this.label = 'Lightning Force Close';
}
return;
} else if (
/^OP_DUP OP_HASH160 OP_PUSHBYTES_20 \w{40} OP_EQUAL OP_IF OP_CHECKSIG OP_ELSE OP_PUSHBYTES_33 \w{66} OP_SWAP OP_SIZE OP_PUSHBYTES_1 20 OP_EQUAL OP_NOTIF OP_DROP OP_PUSHNUM_2 OP_SWAP OP_PUSHBYTES_33 \w{66} OP_PUSHNUM_2 OP_CHECKMULTISIG OP_ELSE OP_HASH160 OP_PUSHBYTES_20 \w{40} OP_EQUALVERIFY OP_CHECKSIG OP_ENDIF (OP_PUSHNUM_1 OP_CSV OP_DROP |)OP_ENDIF$/.test(this.vin.inner_witnessscript_asm) ||
/^OP_DUP OP_HASH160 OP_PUSHBYTES_20 \w{40} OP_EQUAL OP_IF OP_CHECKSIG OP_ELSE OP_PUSHBYTES_33 \w{66} OP_SWAP OP_SIZE OP_PUSHBYTES_1 20 OP_EQUAL OP_IF OP_HASH160 OP_PUSHBYTES_20 \w{40} OP_EQUALVERIFY OP_PUSHNUM_2 OP_SWAP OP_PUSHBYTES_33 \w{66} OP_PUSHNUM_2 OP_CHECKMULTISIG OP_ELSE OP_DROP OP_PUSHBYTES_3 \w{6} OP_CLTV OP_DROP OP_CHECKSIG OP_ENDIF (OP_PUSHNUM_1 OP_CSV OP_DROP |)OP_ENDIF$/.test(this.vin.inner_witnessscript_asm)
) {
// https://github.com/lightning/bolts/blob/master/03-transactions.md#offered-htlc-outputs
// https://github.com/lightning/bolts/blob/master/03-transactions.md#received-htlc-outputs
if (topElement.length === 66) {
// top element is a public key
this.label = 'Revoked Lightning HTLC';
} else if (topElement) {
// top element is a preimage
this.label = 'Lightning HTLC';
} else {
// top element is '' to get in the expiry of the script
this.label = 'Expired Lightning HTLC';
}
return;
} else if (/^OP_PUSHBYTES_33 \w{66} OP_CHECKSIG OP_IFDUP OP_NOTIF OP_PUSHNUM_16 OP_CSV OP_ENDIF$/.test(this.vin.inner_witnessscript_asm)) {
// https://github.com/lightning/bolts/blob/master/03-transactions.md#to_local_anchor-and-to_remote_anchor-output-option_anchors
if (topElement) {
// top element is a signature
this.label = 'Lightning Anchor';
} else {
// top element is '', it has been swept after 16 blocks
this.label = 'Swept Lightning Anchor';
}
return;
}
this.detectMultisig(this.vin.inner_witnessscript_asm);
}
this.detectMultisig(this.vin.inner_redeemscript_asm);
this.detectMultisig(this.vin.prevout.scriptpubkey_asm);
}
detectMultisig(script: string) {
const ms = parseMultisigScript(script);
if (ms) {
this.label = $localize`:@@address-label.multisig:Multisig ${ms.m}:multisigM: of ${ms.n}:multisigN:`;
}
}
handleVout() {
this.detectMultisig(this.vout.scriptpubkey_asm);
}
}