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Текущая директория: /opt/BitGoJS/modules/utxo-staking/dist/src/babylon
Просмотр файла: descriptor.js
"use strict";
/**
* https://github.com/babylonlabs-io/babylon/tree/main/docs
* https://github.com/babylonlabs-io/babylon/blob/main/docs/staking-script.md
* https://github.com/babylonlabs-io/babylon/blob/v1.99.0-snapshot.250211/btcstaking/staking.go
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.BabylonDescriptorBuilder = void 0;
exports.getUnspendableKey = getUnspendableKey;
const wasm_miniscript_1 = require("@bitgo/wasm-miniscript");
function getUnspendableKey() {
// https://github.com/babylonlabs-io/btc-staking-ts/blob/v0.4.0-rc.2/src/constants/internalPubkey.ts
return '50929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfee9ace803ac0';
}
// Helper functions for creating miniscript nodes
function pk(b) {
return { 'v:pk': b.toString('hex') };
}
function sortedKeys(keys) {
return [...keys].sort((a, b) => a.compare(b));
}
function multiArgs(threshold, keys) {
return [threshold, ...sortedKeys(keys).map((k) => k.toString('hex'))];
}
function taprootScriptOnlyFromAst(n) {
return wasm_miniscript_1.Descriptor.fromString(wasm_miniscript_1.ast.formatNode({ tr: [getUnspendableKey(), n] }), 'definite');
}
class BabylonDescriptorBuilder {
constructor(stakerKey, finalityProviderKeys, covenantKeys, covenantThreshold, stakingTimeLock, unbondingTimeLock) {
this.stakerKey = stakerKey;
this.finalityProviderKeys = finalityProviderKeys;
this.covenantKeys = covenantKeys;
this.covenantThreshold = covenantThreshold;
this.stakingTimeLock = stakingTimeLock;
this.unbondingTimeLock = unbondingTimeLock;
}
static fromParams(params) {
return new BabylonDescriptorBuilder(params.stakerKey, params.finalityProviderKeys, params.covenantNoCoordPks.map((k) => Buffer.from(k, 'hex')), params.covenantQuorum, params.minStakingTimeBlocks, params.unbondingTime);
}
getTimelockMiniscript() {
return { and_v: [pk(this.stakerKey), { older: this.stakingTimeLock }] };
}
getUnbondingMiniscript() {
return { and_v: [pk(this.stakerKey), { multi_a: multiArgs(this.covenantThreshold, this.covenantKeys) }] };
}
getSlashingMiniscript() {
return {
and_v: [
{
and_v: [
pk(this.stakerKey),
this.finalityProviderKeys.length === 1
? { 'v:pk': this.finalityProviderKeys[0].toString('hex') }
: { 'v:multi_a': multiArgs(1, this.finalityProviderKeys) },
],
},
{ multi_a: multiArgs(this.covenantThreshold, this.covenantKeys) },
],
};
}
getUnbondingTimelockMiniscript() {
return { and_v: [pk(this.stakerKey), { older: this.unbondingTimeLock }] };
}
getStakingDescriptor() {
return taprootScriptOnlyFromAst([
this.getSlashingMiniscript(),
[this.getUnbondingMiniscript(), this.getTimelockMiniscript()],
]);
}
getSlashingDescriptor() {
return taprootScriptOnlyFromAst(this.getUnbondingTimelockMiniscript());
}
getUnbondingDescriptor() {
return taprootScriptOnlyFromAst([this.getSlashingMiniscript(), this.getUnbondingTimelockMiniscript()]);
}
}
exports.BabylonDescriptorBuilder = BabylonDescriptorBuilder;
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* https://github.com/babylonlabs-io/babylon/tree/main/docs\n * https://github.com/babylonlabs-io/babylon/blob/main/docs/staking-script.md\n * https://github.com/babylonlabs-io/babylon/blob/v1.99.0-snapshot.250211/btcstaking/staking.go\n */\n\nimport { Descriptor, ast } from '@bitgo/wasm-miniscript';\nimport { StakingParams } from '@bitgo/babylonlabs-io-btc-staking-ts';\n\nexport function getUnspendableKey(): string {\n  // https://github.com/babylonlabs-io/btc-staking-ts/blob/v0.4.0-rc.2/src/constants/internalPubkey.ts\n  return '50929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfee9ace803ac0';\n}\n\n// Helper functions for creating miniscript nodes\nfunction pk(b: Buffer): ast.MiniscriptNode {\n  return { 'v:pk': b.toString('hex') };\n}\n\nfunction sortedKeys(keys: Buffer[]): Buffer[] {\n  return [...keys].sort((a, b) => a.compare(b));\n}\n\nfunction multiArgs(threshold: number, keys: Buffer[]): [number, ...string[]] {\n  return [threshold, ...sortedKeys(keys).map((k) => k.toString('hex'))];\n}\n\nfunction taprootScriptOnlyFromAst(n: ast.TapTreeNode): Descriptor {\n  return Descriptor.fromString(ast.formatNode({ tr: [getUnspendableKey(), n] }), 'definite');\n}\n\nexport class BabylonDescriptorBuilder {\n  constructor(\n    public stakerKey: Buffer,\n    public finalityProviderKeys: Buffer[],\n    public covenantKeys: Buffer[],\n    public covenantThreshold: number,\n    public stakingTimeLock: number,\n    public unbondingTimeLock: number\n  ) {}\n\n  static fromParams(\n    params: {\n      stakerKey: Buffer;\n      finalityProviderKeys: Buffer[];\n    } & StakingParams\n  ): BabylonDescriptorBuilder {\n    return new BabylonDescriptorBuilder(\n      params.stakerKey,\n      params.finalityProviderKeys,\n      params.covenantNoCoordPks.map((k) => Buffer.from(k, 'hex')),\n      params.covenantQuorum,\n      params.minStakingTimeBlocks,\n      params.unbondingTime\n    );\n  }\n\n  getTimelockMiniscript(): ast.MiniscriptNode {\n    return { and_v: [pk(this.stakerKey), { older: this.stakingTimeLock }] };\n  }\n\n  getUnbondingMiniscript(): ast.MiniscriptNode {\n    return { and_v: [pk(this.stakerKey), { multi_a: multiArgs(this.covenantThreshold, this.covenantKeys) }] };\n  }\n\n  getSlashingMiniscript(): ast.MiniscriptNode {\n    return {\n      and_v: [\n        {\n          and_v: [\n            pk(this.stakerKey),\n            this.finalityProviderKeys.length === 1\n              ? { 'v:pk': this.finalityProviderKeys[0].toString('hex') }\n              : { 'v:multi_a': multiArgs(1, this.finalityProviderKeys) },\n          ],\n        },\n        { multi_a: multiArgs(this.covenantThreshold, this.covenantKeys) },\n      ],\n    };\n  }\n\n  getUnbondingTimelockMiniscript(): ast.MiniscriptNode {\n    return { and_v: [pk(this.stakerKey), { older: this.unbondingTimeLock }] };\n  }\n\n  getStakingDescriptor(): Descriptor {\n    return taprootScriptOnlyFromAst([\n      this.getSlashingMiniscript(),\n      [this.getUnbondingMiniscript(), this.getTimelockMiniscript()],\n    ]);\n  }\n\n  getSlashingDescriptor(): Descriptor {\n    return taprootScriptOnlyFromAst(this.getUnbondingTimelockMiniscript());\n  }\n\n  getUnbondingDescriptor(): Descriptor {\n    return taprootScriptOnlyFromAst([this.getSlashingMiniscript(), this.getUnbondingTimelockMiniscript()]);\n  }\n}\n"]}Выполнить команду
Для локальной разработки. Не используйте в интернете!