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Текущая директория: /opt/BitGoJS/modules/utxo-lib/dist/src/bitgo
Просмотр файла: PsbtUtil.js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ProprietaryKeySubtype = exports.PSBT_PROPRIETARY_IDENTIFIER = void 0;
exports.getPsbtInputProprietaryKeyVals = getPsbtInputProprietaryKeyVals;
exports.getPsbtInputSignatureCount = getPsbtInputSignatureCount;
exports.isPsbtInputFinalized = isPsbtInputFinalized;
exports.isPsbt = isPsbt;
exports.toPsbtBuffer = toPsbtBuffer;
exports.withUnsafeNonSegwit = withUnsafeNonSegwit;
const proprietaryKeyVal_1 = require("bip174/src/lib/proprietaryKeyVal");
/**
* bitgo proprietary key identifier
*/
exports.PSBT_PROPRIETARY_IDENTIFIER = 'BITGO';
/**
* subtype for proprietary keys that bitgo uses
*/
var ProprietaryKeySubtype;
(function (ProprietaryKeySubtype) {
ProprietaryKeySubtype[ProprietaryKeySubtype["ZEC_CONSENSUS_BRANCH_ID"] = 0] = "ZEC_CONSENSUS_BRANCH_ID";
ProprietaryKeySubtype[ProprietaryKeySubtype["MUSIG2_PARTICIPANT_PUB_KEYS"] = 1] = "MUSIG2_PARTICIPANT_PUB_KEYS";
ProprietaryKeySubtype[ProprietaryKeySubtype["MUSIG2_PUB_NONCE"] = 2] = "MUSIG2_PUB_NONCE";
ProprietaryKeySubtype[ProprietaryKeySubtype["MUSIG2_PARTIAL_SIG"] = 3] = "MUSIG2_PARTIAL_SIG";
})(ProprietaryKeySubtype || (exports.ProprietaryKeySubtype = ProprietaryKeySubtype = {}));
/**
* Search any data from psbt proprietary key value against keydata.
* Default identifierEncoding is utf-8 for identifier.
*/
function getPsbtInputProprietaryKeyVals(input, keySearch) {
if (!input.unknownKeyVals?.length) {
return [];
}
if (keySearch && keySearch.subtype === undefined && Buffer.isBuffer(keySearch.keydata)) {
throw new Error('invalid proprietary key search filter combination. subtype is required');
}
const keyVals = input.unknownKeyVals.map(({ key, value }, i) => {
return { key: (0, proprietaryKeyVal_1.decodeProprietaryKey)(key), value };
});
return keyVals.filter((keyVal) => {
return (keySearch === undefined ||
(keySearch.identifier === keyVal.key.identifier &&
(keySearch.subtype === undefined ||
(keySearch.subtype === keyVal.key.subtype &&
(!Buffer.isBuffer(keySearch.keydata) || keySearch.keydata.equals(keyVal.key.keydata))))));
});
}
/**
* @return partialSig/tapScriptSig/MUSIG2_PARTIAL_SIG count iff input is not finalized
*/
function getPsbtInputSignatureCount(input) {
if (isPsbtInputFinalized(input)) {
throw new Error('Input is already finalized');
}
return Math.max(Array.isArray(input.partialSig) ? input.partialSig.length : 0, Array.isArray(input.tapScriptSig) ? input.tapScriptSig.length : 0, getPsbtInputProprietaryKeyVals(input, {
identifier: exports.PSBT_PROPRIETARY_IDENTIFIER,
subtype: ProprietaryKeySubtype.MUSIG2_PARTIAL_SIG,
}).length);
}
/**
* @return true iff PSBT input is finalized
*/
function isPsbtInputFinalized(input) {
return Buffer.isBuffer(input.finalScriptSig) || Buffer.isBuffer(input.finalScriptWitness);
}
/**
* @return true iff data starts with magic PSBT byte sequence
* @param data byte array or hex string
* */
function isPsbt(data) {
// https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki#specification
// 0x70736274 - ASCII for 'psbt'. 0xff - separator
if (typeof data === 'string') {
if (data.length < 10) {
return false;
}
data = Buffer.from(data.slice(0, 10), 'hex');
}
return 5 <= data.length && data.readUInt32BE(0) === 0x70736274 && data.readUInt8(4) === 0xff;
}
/**
* First checks if the input is already a buffer that starts with the magic PSBT byte sequence.
* If not, it checks if the input is a base64- or hex-encoded string that starts with PSBT header.
*
* This function is useful when reading a file that could be in any of the above formats or when
* dealing with a request that could contain a hex or base64 encoded PSBT.
*
* @param data
* @return buffer that starts with the magic PSBT byte sequence
* @throws Error when conversion is not possible
*/
function toPsbtBuffer(data) {
if (Buffer.isBuffer(data)) {
// we are dealing with a buffer that looks like a psbt already
if (isPsbt(data)) {
return data;
}
// we could be dealing with a buffer that could be a hex or base64 encoded psbt
data = data.toString('ascii');
}
if (typeof data === 'string') {
const encodings = ['hex', 'base64'];
for (const encoding of encodings) {
let buffer;
try {
buffer = Buffer.from(data, encoding);
}
catch (e) {
continue;
}
if (isPsbt(buffer)) {
return buffer;
}
}
throw new Error(`data is not in any of the following formats: ${encodings.join(', ')}`);
}
throw new Error('data must be a buffer or a string');
}
/**
* This function allows signing or validating a psbt with non-segwit inputs those do not contain nonWitnessUtxo.
*/
function withUnsafeNonSegwit(psbt, fn, unsafe = true) {
psbt.__CACHE.__UNSAFE_SIGN_NONSEGWIT = unsafe;
psbt.__CACHE.__WARN_UNSAFE_SIGN_NONSEGWIT = !unsafe;
try {
return fn();
}
finally {
psbt.__CACHE.__UNSAFE_SIGN_NONSEGWIT = false;
psbt.__CACHE.__WARN_UNSAFE_SIGN_NONSEGWIT = true;
}
}
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{ decodeProprietaryKey, ProprietaryKey } from 'bip174/src/lib/proprietaryKeyVal';\nimport { PsbtInput } from 'bip174/src/lib/interfaces';\nimport { Psbt } from 'bitcoinjs-lib/src/psbt';\n\n/**\n * bitgo proprietary key identifier\n */\nexport const PSBT_PROPRIETARY_IDENTIFIER = 'BITGO';\n\n/**\n * subtype for proprietary keys that bitgo uses\n */\nexport enum ProprietaryKeySubtype {\n  ZEC_CONSENSUS_BRANCH_ID = 0x00,\n  MUSIG2_PARTICIPANT_PUB_KEYS = 0x01,\n  MUSIG2_PUB_NONCE = 0x02,\n  MUSIG2_PARTIAL_SIG = 0x03,\n}\n\n/**\n * Psbt proprietary keydata object.\n * <compact size uint identifier length> <bytes identifier> <compact size uint subtype> <bytes subkeydata>\n * => <bytes valuedata>\n */\nexport interface ProprietaryKeyValue {\n  key: ProprietaryKey;\n  value: Buffer;\n}\n\n/**\n * Psbt proprietary keydata object search fields.\n * <compact size uint identifier length> <bytes identifier> <compact size uint subtype> <bytes subkeydata>\n */\nexport interface ProprietaryKeySearch {\n  identifier: string;\n  subtype?: number;\n  keydata?: Buffer;\n  identifierEncoding?: BufferEncoding;\n}\n\n/**\n * Search any data from psbt proprietary key value against keydata.\n * Default identifierEncoding is utf-8 for identifier.\n */\nexport function getPsbtInputProprietaryKeyVals(\n  input: PsbtInput,\n  keySearch?: ProprietaryKeySearch\n): ProprietaryKeyValue[] {\n  if (!input.unknownKeyVals?.length) {\n    return [];\n  }\n  if (keySearch && keySearch.subtype === undefined && Buffer.isBuffer(keySearch.keydata)) {\n    throw new Error('invalid proprietary key search filter combination. subtype is required');\n  }\n  const keyVals = input.unknownKeyVals.map(({ key, value }, i) => {\n    return { key: decodeProprietaryKey(key), value };\n  });\n  return keyVals.filter((keyVal) => {\n    return (\n      keySearch === undefined ||\n      (keySearch.identifier === keyVal.key.identifier &&\n        (keySearch.subtype === undefined ||\n          (keySearch.subtype === keyVal.key.subtype &&\n            (!Buffer.isBuffer(keySearch.keydata) || keySearch.keydata.equals(keyVal.key.keydata)))))\n    );\n  });\n}\n\n/**\n * @return partialSig/tapScriptSig/MUSIG2_PARTIAL_SIG count iff input is not finalized\n */\nexport function getPsbtInputSignatureCount(input: PsbtInput): number {\n  if (isPsbtInputFinalized(input)) {\n    throw new Error('Input is already finalized');\n  }\n  return Math.max(\n    Array.isArray(input.partialSig) ? input.partialSig.length : 0,\n    Array.isArray(input.tapScriptSig) ? input.tapScriptSig.length : 0,\n    getPsbtInputProprietaryKeyVals(input, {\n      identifier: PSBT_PROPRIETARY_IDENTIFIER,\n      subtype: ProprietaryKeySubtype.MUSIG2_PARTIAL_SIG,\n    }).length\n  );\n}\n\n/**\n * @return true iff PSBT input is finalized\n */\nexport function isPsbtInputFinalized(input: PsbtInput): boolean {\n  return Buffer.isBuffer(input.finalScriptSig) || Buffer.isBuffer(input.finalScriptWitness);\n}\n\n/**\n * @return true iff data starts with magic PSBT byte sequence\n * @param data byte array or hex string\n * */\nexport function isPsbt(data: Buffer | string): boolean {\n  // https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki#specification\n  // 0x70736274 - ASCII for 'psbt'. 0xff - separator\n  if (typeof data === 'string') {\n    if (data.length < 10) {\n      return false;\n    }\n    data = Buffer.from(data.slice(0, 10), 'hex');\n  }\n  return 5 <= data.length && data.readUInt32BE(0) === 0x70736274 && data.readUInt8(4) === 0xff;\n}\n\n/**\n * First checks if the input is already a buffer that starts with the magic PSBT byte sequence.\n * If not, it checks if the input is a base64- or hex-encoded string that starts with PSBT header.\n *\n * This function is useful when reading a file that could be in any of the above formats or when\n * dealing with a request that could contain a hex or base64 encoded PSBT.\n *\n * @param data\n * @return buffer that starts with the magic PSBT byte sequence\n * @throws Error when conversion is not possible\n */\nexport function toPsbtBuffer(data: Buffer | string): Buffer {\n  if (Buffer.isBuffer(data)) {\n    // we are dealing with a buffer that looks like a psbt already\n    if (isPsbt(data)) {\n      return data;\n    }\n\n    // we could be dealing with a buffer that could be a hex or base64 encoded psbt\n    data = data.toString('ascii');\n  }\n\n  if (typeof data === 'string') {\n    const encodings = ['hex', 'base64'] as const;\n    for (const encoding of encodings) {\n      let buffer: Buffer;\n      try {\n        buffer = Buffer.from(data, encoding);\n      } catch (e) {\n        continue;\n      }\n      if (isPsbt(buffer)) {\n        return buffer;\n      }\n    }\n\n    throw new Error(`data is not in any of the following formats: ${encodings.join(', ')}`);\n  }\n\n  throw new Error('data must be a buffer or a string');\n}\n\n/**\n * This function allows signing or validating a psbt with non-segwit inputs those do not contain nonWitnessUtxo.\n */\nexport function withUnsafeNonSegwit<T>(psbt: Psbt, fn: () => T, unsafe = true): T {\n  (psbt as any).__CACHE.__UNSAFE_SIGN_NONSEGWIT = unsafe;\n  (psbt as any).__CACHE.__WARN_UNSAFE_SIGN_NONSEGWIT = !unsafe;\n  try {\n    return fn();\n  } finally {\n    (psbt as any).__CACHE.__UNSAFE_SIGN_NONSEGWIT = false;\n    (psbt as any).__CACHE.__WARN_UNSAFE_SIGN_NONSEGWIT = true;\n  }\n}\n"]}Выполнить команду
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