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Текущая директория: /opt/BitGoJS/modules/utxo-staking/dist/src/babylon
Просмотр файла: delegationMessage.js
"use strict";
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}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
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return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
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};
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getSignedPsbt = getSignedPsbt;
exports.forceFinalizePsbt = forceFinalizePsbt;
exports.getBtcProviderForECKey = getBtcProviderForECKey;
exports.toStakerInfo = toStakerInfo;
exports.createStaking = createStaking;
exports.toStakingTransaction = toStakingTransaction;
exports.createDelegationMessageWithTransaction = createDelegationMessageWithTransaction;
exports.createUnsignedPreStakeRegistrationBabylonTransactionWithBtcProvider = createUnsignedPreStakeRegistrationBabylonTransactionWithBtcProvider;
/**
* https://github.com/babylonlabs-io/babylon/blob/v1.99.0-snapshot.250211/x/btcstaking/types/validate_parsed_message.go
*/
const assert_1 = __importDefault(require("assert"));
const bip322_js_1 = require("bip322-js");
const vendor = __importStar(require("@bitgo/babylonlabs-io-btc-staking-ts"));
const bitcoinjslib = __importStar(require("bitcoinjs-lib"));
const utxolib = __importStar(require("@bitgo/utxo-lib"));
const utxo_core_1 = require("@bitgo/utxo-core");
const descriptor_1 = require("@bitgo/utxo-core/descriptor");
const stakingManager_1 = require("./stakingManager");
const stakingParams_1 = require("./stakingParams");
const network_1 = require("./network");
/**
* Decode a hex or base64 encoded string and check if the length is valid.
* @param v
* @param encoding
*/
function decodeCheck(v, encoding) {
const result = Buffer.from(v, encoding);
if (result.toString(encoding).length !== v.length) {
throw new Error(`Invalid ${encoding} encoding`);
}
return result;
}
/**
* Convert a Buffer or string to a base64 encoded string.
* @param v
*/
function toBase64(v) {
if (typeof v === 'string') {
for (const encoding of ['base64', 'hex']) {
try {
return toBase64(decodeCheck(v, encoding));
}
catch (e) {
// try next
}
}
throw new Error(`Invalid base64 or hex encoding: ${v}`);
}
return v.toString('base64');
}
function getSignedPsbt(psbt, descriptor, signers, { finalize = false }) {
const wrappedPsbt = (0, descriptor_1.toWrappedPsbt)(psbt.toBuffer());
const signedInputs = psbt.data.inputs.flatMap((input, i) => {
(0, assert_1.default)(input.witnessUtxo);
if (Buffer.from(descriptor.scriptPubkey()).equals(input.witnessUtxo.script)) {
wrappedPsbt.updateInputWithDescriptor(i, descriptor);
const signResults = signers.map((signer) => {
(0, assert_1.default)(signer.privateKey);
return wrappedPsbt.signWithPrv(signer.privateKey);
});
return [[i, signResults]];
}
return [];
});
(0, assert_1.default)(signedInputs.length > 0);
if (finalize) {
wrappedPsbt.finalize();
}
return bitcoinjslib.Psbt.fromBuffer(Buffer.from(wrappedPsbt.serialize()));
}
/**
* Utility method to work around a bug in btc-staking-ts
* https://github.com/babylonlabs-io/btc-staking-ts/issues/71
* @param v
* @param network
*/
function forceFinalizePsbt(v, network) {
if (v instanceof utxolib.Psbt) {
v = v.toBuffer();
}
if (v instanceof bitcoinjslib.Psbt) {
v = v.toBuffer();
}
const psbt = bitcoinjslib.Psbt.fromBuffer(v, { network: (0, network_1.toBitcoinJsNetwork)(network) });
// this only works with certain bitcoinjslib versions
psbt.finalizeAllInputs();
return psbt;
}
function getBtcProviderForECKey(descriptorBuilder, stakerKey) {
function signWithDescriptor(psbt, descriptor, key) {
psbt = getSignedPsbt(psbt, descriptor, [key], { finalize: false });
// BUG: we need to blindly finalize here even though we have not fully signed
psbt.finalizeAllInputs();
return psbt;
}
function signBip322Simple(message) {
// Get the script public key from the staking descriptor
const scriptPubKey = Buffer.from(descriptorBuilder.getStakingDescriptor().scriptPubkey());
const toSpendTx = bip322_js_1.BIP322.buildToSpendTx(message, scriptPubKey);
// Get the to_spend txid
const toSpendTxId = toSpendTx.getId();
// Create PSBT object for constructing the transaction
const toSignPsbt = new bitcoinjslib.Psbt();
toSignPsbt.setVersion(2); // nVersion = 0
toSignPsbt.setLocktime(0); // nLockTime = 0
toSignPsbt.addInput({
hash: toSpendTxId,
index: 0,
sequence: descriptorBuilder.stakingTimeLock,
witnessUtxo: {
script: scriptPubKey,
value: 0,
},
});
// Sign the PSBT with the staker key
const wrappedPsbt = (0, descriptor_1.toWrappedPsbt)(toSignPsbt.toBuffer());
wrappedPsbt.updateInputWithDescriptor(0, descriptorBuilder.getStakingDescriptor());
(0, descriptor_1.signWithKey)(wrappedPsbt, stakerKey);
wrappedPsbt.finalize();
// Encode the witness data and return
return bip322_js_1.BIP322.encodeWitness(bitcoinjslib.Psbt.fromBuffer(Buffer.from(wrappedPsbt.serialize())));
}
return {
/**
* @param signingStep
* @param message
* @param type
* @returns Base64 encoded string
*/
async signMessage(signingStep, message, type) {
(0, assert_1.default)(signingStep === 'proof-of-possession');
switch (type) {
case 'ecdsa':
return toBase64(stakerKey.sign(Buffer.from(message, 'hex')));
case 'bip322-simple':
return toBase64(signBip322Simple(message));
default:
throw new Error(`unexpected signing step: ${signingStep}`);
}
},
async signPsbt(signingStep, psbtHex) {
const psbt = bitcoinjslib.Psbt.fromHex(psbtHex);
switch (signingStep) {
case 'staking-slashing':
return signWithDescriptor(psbt, descriptorBuilder.getStakingDescriptor(), stakerKey).toHex();
case 'unbonding-slashing':
return signWithDescriptor(psbt, descriptorBuilder.getUnbondingDescriptor(), stakerKey).toHex();
default:
throw new Error(`unexpected signing step: ${signingStep}`);
}
},
};
}
/**
* @param stakingKey - this is the single-sig key that is used for co-signing the staking output
* @param changeAddress - this is unrelated to the staking key and is used for the change output
*/
function toStakerInfo(stakingKey, changeAddress) {
if (typeof stakingKey === 'object' && 'publicKey' in stakingKey) {
stakingKey = stakingKey.publicKey;
}
if (typeof stakingKey === 'string') {
stakingKey = Buffer.from(stakingKey, 'hex');
}
return {
publicKeyNoCoordHex: (0, utxo_core_1.toXOnlyPublicKey)(stakingKey).toString('hex'),
address: changeAddress,
};
}
function createStaking(network, blockHeight, stakerBtcInfo, stakingInput, versionedParams = (0, stakingParams_1.getStakingParams)(network)) {
if (blockHeight === 0) {
throw new Error('Babylon BTC tip height cannot be 0');
}
// Get the Babylon params based on the BTC tip height from Babylon chain
const params = vendor.getBabylonParamByBtcHeight(blockHeight, versionedParams);
return new vendor.Staking((0, network_1.toBitcoinJsNetwork)(network), stakerBtcInfo, params, stakingInput.finalityProviderPkNoCoordHex, stakingInput.stakingTimelock);
}
function toStakingTransactionFromPsbt(psbt) {
if (!(psbt instanceof utxolib.bitgo.UtxoPsbt)) {
psbt = utxolib.bitgo.createPsbtFromBuffer(psbt.toBuffer(), utxolib.networks.bitcoin);
}
if (psbt instanceof utxolib.bitgo.UtxoPsbt) {
// only utxolib.bitgo.UtxoPsbt has the getUnsignedTx method
return bitcoinjslib.Transaction.fromHex(psbt.getUnsignedTx().toHex());
}
throw new Error('illegal state');
}
function toStakingTransaction(tx) {
if (tx instanceof bitcoinjslib.Psbt || tx instanceof utxolib.Psbt) {
return toStakingTransactionFromPsbt(tx);
}
return bitcoinjslib.Transaction.fromHex(tx.toHex());
}
/*
* This is mostly lifted from
* https://github.com/babylonlabs-io/btc-staking-ts/blob/v0.4.0-rc.2/src/staking/manager.ts#L100-L172
*
* The difference is that here we are returning an _unsigned_ delegation message.
*/
async function createDelegationMessageWithTransaction(manager, staking, stakingAmountSat, transaction, babylonAddress) {
if (!vendor.isValidBabylonAddress(babylonAddress)) {
throw new Error('Invalid Babylon address');
}
// Create delegation message without including inclusion proof
return manager.createBtcDelegationMsg(staking, {
stakingTimelock: staking.stakingTimelock,
finalityProviderPkNoCoordHex: staking.finalityProviderPkNoCoordHex,
stakingAmountSat,
}, toStakingTransaction(transaction), babylonAddress, staking.stakerInfo, staking.params);
}
async function createUnsignedPreStakeRegistrationBabylonTransactionWithBtcProvider(btcProvider, network, stakerBtcInfo, stakingInput, babylonBtcTipHeight, inputUTXOs, feeRateSatB, babylonAddress, stakingParams = (0, stakingParams_1.getStakingParams)(network)) {
if (inputUTXOs.length === 0) {
throw new Error('No input UTXOs provided');
}
const manager = (0, stakingManager_1.createStakingManager)(network, btcProvider, stakingParams);
const staking = createStaking(network, babylonBtcTipHeight, stakerBtcInfo, stakingInput, stakingParams);
// Create unsigned staking transaction
const { transaction } = staking.createStakingTransaction(stakingInput.stakingAmountSat, inputUTXOs, feeRateSatB);
const unsignedDelegationMsg = await createDelegationMessageWithTransaction(manager, staking, stakingInput.stakingAmountSat, transaction, babylonAddress);
return { unsignedDelegationMsg, stakingTx: transaction };
}
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* https://github.com/babylonlabs-io/babylon/blob/v1.99.0-snapshot.250211/x/btcstaking/types/validate_parsed_message.go\n */\nimport assert from 'assert';\n\nimport { BIP322 } from 'bip322-js';\nimport * as vendor from '@bitgo/babylonlabs-io-btc-staking-ts';\nimport * as babylonProtobuf from '@babylonlabs-io/babylon-proto-ts';\nimport * as bitcoinjslib from 'bitcoinjs-lib';\nimport * as utxolib from '@bitgo/utxo-lib';\nimport { Descriptor } from '@bitgo/wasm-miniscript';\nimport { toXOnlyPublicKey } from '@bitgo/utxo-core';\nimport { signWithKey, toWrappedPsbt } from '@bitgo/utxo-core/descriptor';\n\nimport { BabylonDescriptorBuilder } from './descriptor';\nimport { createStakingManager } from './stakingManager';\nimport { getStakingParams } from './stakingParams';\nimport { BabylonNetworkLike, toBitcoinJsNetwork } from './network';\n\nexport type ValueWithTypeUrl<T> = { typeUrl: string; value: T };\n\n/**\n * Decode a hex or base64 encoded string and check if the length is valid.\n * @param v\n * @param encoding\n */\nfunction decodeCheck(v: string, encoding: 'hex' | 'base64') {\n  const result = Buffer.from(v, encoding);\n  if (result.toString(encoding).length !== v.length) {\n    throw new Error(`Invalid ${encoding} encoding`);\n  }\n  return result;\n}\n\n/**\n * Convert a Buffer or string to a base64 encoded string.\n * @param v\n */\nfunction toBase64(v: Buffer | string) {\n  if (typeof v === 'string') {\n    for (const encoding of ['base64', 'hex'] as const) {\n      try {\n        return toBase64(decodeCheck(v, encoding));\n      } catch (e) {\n        // try next\n      }\n    }\n    throw new Error(`Invalid base64 or hex encoding: ${v}`);\n  }\n\n  return v.toString('base64');\n}\n\nexport function getSignedPsbt(\n  psbt: bitcoinjslib.Psbt,\n  descriptor: Descriptor,\n  signers: utxolib.ECPairInterface[],\n  { finalize = false }\n): bitcoinjslib.Psbt {\n  const wrappedPsbt = toWrappedPsbt(psbt.toBuffer());\n  const signedInputs = psbt.data.inputs.flatMap((input, i) => {\n    assert(input.witnessUtxo);\n    if (Buffer.from(descriptor.scriptPubkey()).equals(input.witnessUtxo.script)) {\n      wrappedPsbt.updateInputWithDescriptor(i, descriptor);\n      const signResults = signers.map((signer) => {\n        assert(signer.privateKey);\n        return wrappedPsbt.signWithPrv(signer.privateKey);\n      });\n      return [[i, signResults]];\n    }\n    return [];\n  });\n  assert(signedInputs.length > 0);\n  if (finalize) {\n    wrappedPsbt.finalize();\n  }\n  return bitcoinjslib.Psbt.fromBuffer(Buffer.from(wrappedPsbt.serialize()));\n}\n\n/**\n * Utility method to work around a bug in btc-staking-ts\n * https://github.com/babylonlabs-io/btc-staking-ts/issues/71\n * @param v\n * @param network\n */\nexport function forceFinalizePsbt(\n  v: Buffer | utxolib.Psbt | bitcoinjslib.Psbt,\n  network: BabylonNetworkLike\n): bitcoinjslib.Psbt {\n  if (v instanceof utxolib.Psbt) {\n    v = v.toBuffer();\n  }\n  if (v instanceof bitcoinjslib.Psbt) {\n    v = v.toBuffer();\n  }\n  const psbt = bitcoinjslib.Psbt.fromBuffer(v, { network: toBitcoinJsNetwork(network) });\n  // this only works with certain bitcoinjslib versions\n  psbt.finalizeAllInputs();\n  return psbt;\n}\n\nexport function getBtcProviderForECKey(\n  descriptorBuilder: BabylonDescriptorBuilder,\n  stakerKey: utxolib.ECPairInterface\n): vendor.BtcProvider {\n  function signWithDescriptor(\n    psbt: bitcoinjslib.Psbt,\n    descriptor: Descriptor,\n    key: utxolib.ECPairInterface\n  ): bitcoinjslib.Psbt {\n    psbt = getSignedPsbt(psbt, descriptor, [key], { finalize: false });\n    // BUG: we need to blindly finalize here even though we have not fully signed\n    psbt.finalizeAllInputs();\n    return psbt;\n  }\n\n  function signBip322Simple(message: string): string {\n    // Get the script public key from the staking descriptor\n    const scriptPubKey = Buffer.from(descriptorBuilder.getStakingDescriptor().scriptPubkey());\n    const toSpendTx = BIP322.buildToSpendTx(message, scriptPubKey);\n\n    // Get the to_spend txid\n    const toSpendTxId = toSpendTx.getId();\n\n    // Create PSBT object for constructing the transaction\n    const toSignPsbt = new bitcoinjslib.Psbt();\n    toSignPsbt.setVersion(2); // nVersion = 0\n    toSignPsbt.setLocktime(0); // nLockTime = 0\n    toSignPsbt.addInput({\n      hash: toSpendTxId,\n      index: 0,\n      sequence: descriptorBuilder.stakingTimeLock,\n      witnessUtxo: {\n        script: scriptPubKey,\n        value: 0,\n      },\n    });\n\n    // Sign the PSBT with the staker key\n    const wrappedPsbt = toWrappedPsbt(toSignPsbt.toBuffer());\n    wrappedPsbt.updateInputWithDescriptor(0, descriptorBuilder.getStakingDescriptor());\n    signWithKey(wrappedPsbt, stakerKey);\n    wrappedPsbt.finalize();\n\n    // Encode the witness data and return\n    return BIP322.encodeWitness(bitcoinjslib.Psbt.fromBuffer(Buffer.from(wrappedPsbt.serialize())));\n  }\n\n  return {\n    /**\n     * @param signingStep\n     * @param message\n     * @param type\n     * @returns Base64 encoded string\n     */\n    async signMessage(\n      signingStep: vendor.SigningStep,\n      message: string,\n      type: 'ecdsa' | 'bip322-simple'\n    ): Promise<string> {\n      assert(signingStep === 'proof-of-possession');\n      switch (type) {\n        case 'ecdsa':\n          return toBase64(stakerKey.sign(Buffer.from(message, 'hex')));\n        case 'bip322-simple':\n          return toBase64(signBip322Simple(message));\n        default:\n          throw new Error(`unexpected signing step: ${signingStep}`);\n      }\n    },\n\n    async signPsbt(signingStep: vendor.SigningStep, psbtHex: string): Promise<string> {\n      const psbt = bitcoinjslib.Psbt.fromHex(psbtHex);\n      switch (signingStep) {\n        case 'staking-slashing':\n          return signWithDescriptor(psbt, descriptorBuilder.getStakingDescriptor(), stakerKey).toHex();\n        case 'unbonding-slashing':\n          return signWithDescriptor(psbt, descriptorBuilder.getUnbondingDescriptor(), stakerKey).toHex();\n        default:\n          throw new Error(`unexpected signing step: ${signingStep}`);\n      }\n    },\n  };\n}\ntype Result = {\n  unsignedDelegationMsg: ValueWithTypeUrl<babylonProtobuf.btcstakingtx.MsgCreateBTCDelegation>;\n  stakingTx: bitcoinjslib.Transaction;\n};\n\n/**\n * @param stakingKey - this is the single-sig key that is used for co-signing the staking output\n * @param changeAddress - this is unrelated to the staking key and is used for the change output\n */\nexport function toStakerInfo(\n  stakingKey: utxolib.ECPairInterface | Buffer | string,\n  changeAddress: string\n): vendor.StakerInfo {\n  if (typeof stakingKey === 'object' && 'publicKey' in stakingKey) {\n    stakingKey = stakingKey.publicKey;\n  }\n  if (typeof stakingKey === 'string') {\n    stakingKey = Buffer.from(stakingKey, 'hex');\n  }\n  return {\n    publicKeyNoCoordHex: toXOnlyPublicKey(stakingKey).toString('hex'),\n    address: changeAddress,\n  };\n}\n\nexport function createStaking(\n  network: BabylonNetworkLike,\n  blockHeight: number,\n  stakerBtcInfo: vendor.StakerInfo,\n  stakingInput: vendor.StakingInputs,\n  versionedParams: vendor.VersionedStakingParams[] = getStakingParams(network)\n): vendor.Staking {\n  if (blockHeight === 0) {\n    throw new Error('Babylon BTC tip height cannot be 0');\n  }\n\n  // Get the Babylon params based on the BTC tip height from Babylon chain\n  const params = vendor.getBabylonParamByBtcHeight(blockHeight, versionedParams);\n\n  return new vendor.Staking(\n    toBitcoinJsNetwork(network),\n    stakerBtcInfo,\n    params,\n    stakingInput.finalityProviderPkNoCoordHex,\n    stakingInput.stakingTimelock\n  );\n}\n\ntype TransactionLike =\n  | bitcoinjslib.Psbt\n  | bitcoinjslib.Transaction\n  | utxolib.Transaction\n  | utxolib.bitgo.UtxoTransaction<bigint | number>\n  | utxolib.Psbt\n  | utxolib.bitgo.UtxoPsbt;\n\nfunction toStakingTransactionFromPsbt(\n  psbt: bitcoinjslib.Psbt | utxolib.Psbt | utxolib.bitgo.UtxoPsbt\n): bitcoinjslib.Transaction {\n  if (!(psbt instanceof utxolib.bitgo.UtxoPsbt)) {\n    psbt = utxolib.bitgo.createPsbtFromBuffer(psbt.toBuffer(), utxolib.networks.bitcoin);\n  }\n  if (psbt instanceof utxolib.bitgo.UtxoPsbt) {\n    // only utxolib.bitgo.UtxoPsbt has the getUnsignedTx method\n    return bitcoinjslib.Transaction.fromHex(psbt.getUnsignedTx().toHex());\n  }\n  throw new Error('illegal state');\n}\n\nexport function toStakingTransaction(tx: TransactionLike): bitcoinjslib.Transaction {\n  if (tx instanceof bitcoinjslib.Psbt || tx instanceof utxolib.Psbt) {\n    return toStakingTransactionFromPsbt(tx);\n  }\n  return bitcoinjslib.Transaction.fromHex(tx.toHex());\n}\n\n/*\n * This is mostly lifted from\n * https://github.com/babylonlabs-io/btc-staking-ts/blob/v0.4.0-rc.2/src/staking/manager.ts#L100-L172\n *\n * The difference is that here we are returning an _unsigned_ delegation message.\n */\nexport async function createDelegationMessageWithTransaction(\n  manager: vendor.BabylonBtcStakingManager,\n  staking: vendor.Staking,\n  stakingAmountSat: number,\n  transaction: TransactionLike,\n  babylonAddress: string\n): Promise<ValueWithTypeUrl<babylonProtobuf.btcstakingtx.MsgCreateBTCDelegation>> {\n  if (!vendor.isValidBabylonAddress(babylonAddress)) {\n    throw new Error('Invalid Babylon address');\n  }\n  // Create delegation message without including inclusion proof\n  return manager.createBtcDelegationMsg(\n    staking,\n    {\n      stakingTimelock: staking.stakingTimelock,\n      finalityProviderPkNoCoordHex: staking.finalityProviderPkNoCoordHex,\n      stakingAmountSat,\n    },\n    toStakingTransaction(transaction),\n    babylonAddress,\n    staking.stakerInfo,\n    staking.params\n  );\n}\n\nexport async function createUnsignedPreStakeRegistrationBabylonTransactionWithBtcProvider(\n  btcProvider: vendor.BtcProvider,\n  network: bitcoinjslib.Network,\n  stakerBtcInfo: vendor.StakerInfo,\n  stakingInput: vendor.StakingInputs,\n  babylonBtcTipHeight: number,\n  inputUTXOs: vendor.UTXO[],\n  feeRateSatB: number,\n  babylonAddress: string,\n  stakingParams: vendor.VersionedStakingParams[] = getStakingParams(network)\n): Promise<Result> {\n  if (inputUTXOs.length === 0) {\n    throw new Error('No input UTXOs provided');\n  }\n  const manager = createStakingManager(network, btcProvider, stakingParams);\n  const staking = createStaking(network, babylonBtcTipHeight, stakerBtcInfo, stakingInput, stakingParams);\n  // Create unsigned staking transaction\n  const { transaction } = staking.createStakingTransaction(stakingInput.stakingAmountSat, inputUTXOs, feeRateSatB);\n  const unsignedDelegationMsg = await createDelegationMessageWithTransaction(\n    manager,\n    staking,\n    stakingInput.stakingAmountSat,\n    transaction,\n    babylonAddress\n  );\n  return { unsignedDelegationMsg, stakingTx: transaction };\n}\n"]}Выполнить команду
Для локальной разработки. Не используйте в интернете!