Merge pull request #1464 from antonilol/lightning-scripts
Detect more lightning scripts
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softsimon
GitHub
commit
d2fb80fb2c
@ -1,17 +1,5 @@
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<span
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*ngIf="multisig"
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*ngIf="label"
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class="badge badge-pill badge-warning"
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i18n="address-labels.multisig"
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>multisig {{ multisigM }} of {{ multisigN }}</span>
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<span
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*ngIf="lightning"
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class="badge badge-pill badge-warning"
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i18n="address-labels.upper-layer-peg-out"
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>Lightning {{ lightning }}</span>
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<span
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*ngIf="liquid"
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class="badge badge-pill badge-warning"
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i18n="address-labels.upper-layer-peg-out"
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>Liquid {{ liquid }}</span>
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>{{ label }}</span>
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@ -14,12 +14,7 @@ export class AddressLabelsComponent implements OnInit {
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@Input() vin: Vin;
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@Input() vout: Vout;
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multisig = false;
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multisigM: number;
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multisigN: number;
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lightning = null;
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liquid = null;
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label?: string;
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constructor(
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stateService: StateService,
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@ -39,30 +34,46 @@ export class AddressLabelsComponent implements OnInit {
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if (this.vin.inner_witnessscript_asm) {
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if (this.vin.inner_witnessscript_asm.indexOf('OP_DEPTH OP_PUSHNUM_12 OP_EQUAL OP_IF OP_PUSHNUM_11') === 0) {
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if (this.vin.witness.length > 11) {
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this.liquid = 'Peg Out';
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this.label = 'Liquid Peg Out';
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} else {
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this.liquid = 'Emergency Peg Out';
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this.label = 'Emergency Liquid Peg Out';
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}
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return;
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}
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// https://github.com/lightning/bolts/blob/master/03-transactions.md#commitment-transaction-outputs
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const topElement = this.vin.witness[this.vin.witness.length - 2];
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if (/^OP_IF OP_PUSHBYTES_33 \w{66} OP_ELSE OP_PUSHBYTES_(1 \w{2}|2 \w{4}) OP_CSV OP_DROP OP_PUSHBYTES_33 \w{66} OP_ENDIF OP_CHECKSIG$/.test(this.vin.inner_witnessscript_asm)) {
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if (this.vin.witness[this.vin.witness.length - 2] == '01') {
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this.lightning = 'Revoked Force Close';
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} else {
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this.lightning = 'Force Close';
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}
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// https://github.com/lightning/bolts/blob/master/03-transactions.md#offered-htlc-outputs
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} else if (/^OP_DUP OP_HASH160 OP_PUSHBYTES_20 \w{40} OP_EQUAL OP_IF OP_CHECKSIG OP_ELSE OP_PUSHBYTES_33 \w{66} OP_SWAP OP_SIZE OP_PUSHBYTES_1 20 OP_EQUAL OP_NOTIF OP_DROP OP_PUSHNUM_2 OP_SWAP OP_PUSHBYTES_33 \w{66} OP_PUSHNUM_2 OP_CHECKMULTISIG OP_ELSE OP_HASH160 OP_PUSHBYTES_20 \w{40} OP_EQUALVERIFY OP_CHECKSIG OP_ENDIF (OP_PUSHNUM_1 OP_CHECKSEQUENCEVERIFY OP_DROP |)OP_ENDIF$/.test(this.vin.inner_witnessscript_asm)) {
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if (this.vin.witness[this.vin.witness.length - 2].length == 66) {
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this.lightning = 'Revoked HTLC';
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// https://github.com/lightning/bolts/blob/master/03-transactions.md#commitment-transaction-outputs
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if (topElement === '01') {
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// top element is '01' to get in the revocation path
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this.label = 'Revoked Lightning Force Close';
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} else {
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this.lightning = 'HTLC';
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// top element is '', this is a delayed to_local output
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this.label = 'Lightning Force Close';
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}
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return;
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} 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_CHECKSEQUENCEVERIFY OP_DROP |)OP_ENDIF$/.test(this.vin.inner_witnessscript_asm)) {
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// https://github.com/lightning/bolts/blob/master/03-transactions.md#offered-htlc-outputs
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if (topElement.length === 66) {
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// top element is a public key
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this.label = 'Revoked Lightning HTLC';
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} else if (topElement) {
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// top element is a preimage
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this.label = 'Lightning HTLC';
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} else {
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// top element is '' to get in the multisig path of the script
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this.label = 'Expired Lightning HTLC';
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}
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return;
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} else if (/^OP_PUSHBYTES_33 \w{66} OP_CHECKSIG OP_IFDUP OP_NOTIF OP_PUSHNUM_16 OP_CSV OP_ENDIF$/.test(this.vin.inner_witnessscript_asm)) {
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// https://github.com/lightning/bolts/blob/master/03-transactions.md#to_local_anchor-and-to_remote_anchor-output-option_anchors
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if (topElement) {
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// top element is a signature
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this.label = 'Lightning Anchor';
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} else {
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// top element is '', it has been swept after 16 blocks
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this.label = 'Swept Lightning Anchor';
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}
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}
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if (this.lightning) {
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return;
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}
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@ -77,19 +88,19 @@ export class AddressLabelsComponent implements OnInit {
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return;
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}
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const ops = script.split(' ');
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if (ops.length < 3 || ops.pop() != 'OP_CHECKMULTISIG') {
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if (ops.length < 3 || ops.pop() !== 'OP_CHECKMULTISIG') {
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return;
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}
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const opN = ops.pop();
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if (!opN.startsWith('OP_PUSHNUM_')) {
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return;
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}
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const n = parseInt(opN.match(/[0-9]+/)[0]);
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const n = parseInt(opN.match(/[0-9]+/)[0], 10);
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if (ops.length < n * 2 + 1) {
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return;
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}
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// pop n public keys
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for (var i = 0; i < n; i++) {
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for (let i = 0; i < n; i++) {
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if (!/^0((2|3)\w{64}|4\w{128})$/.test(ops.pop())) {
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return;
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}
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@ -101,13 +112,12 @@ export class AddressLabelsComponent implements OnInit {
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if (!opM.startsWith('OP_PUSHNUM_')) {
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return;
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}
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const m = parseInt(opM.match(/[0-9]+/)[0]);
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const m = parseInt(opM.match(/[0-9]+/)[0], 10);
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this.multisig = true;
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this.multisigM = m;
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this.multisigN = n;
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this.label = `multisig ${m} of ${n}`;
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}
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handleVout() {
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this.detectMultisig(this.vout.scriptpubkey_asm);
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}
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}
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@ -155,6 +155,9 @@
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<span class="d-block d-lg-none">{{ vout.scriptpubkey_address | shortenString : 16 }}</span>
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<span class="d-none d-lg-block">{{ vout.scriptpubkey_address | shortenString : 35 }}</span>
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</a>
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<div>
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<app-address-labels [vout]="vout"></app-address-labels>
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</div>
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<ng-template #scriptpubkey_type>
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<ng-template [ngIf]="vout.pegout" [ngIfElse]="defaultscriptpubkey_type">
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<ng-container i18n="transactions-list.peg-out-to">Peg-out to <ng-container *ngTemplateOutlet="pegOutLink"></ng-container></ng-container>
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