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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@bitgo/abstract-utxo/dist/src/descriptor/builder

Просмотр файла: parse.js

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    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]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseDescriptorNode = parseDescriptorNode;
exports.parseDescriptor = parseDescriptor;
const utxolib = __importStar(require("@bitgo/utxo-lib"));
const builder_1 = require("./builder");
function isUnaryNode(node, key) {
    if (typeof node !== 'object' || node === null) {
        return false;
    }
    const keys = Object.keys(node);
    return keys.length === 1 && keys[0] === key;
}
function unwrapNode(node, path) {
    let current = node;
    for (const key of path) {
        if (!isUnaryNode(current, key)) {
            return undefined;
        }
        current = current[key];
    }
    return current;
}
function parseMulti(node) {
    if (!Array.isArray(node)) {
        throw new Error('Unexpected node');
    }
    const [threshold, ...keyNodes] = node;
    if (typeof threshold !== 'number') {
        throw new Error('Expected threshold number');
    }
    const keyWithPath = keyNodes.map((keyNode) => {
        if (!isUnaryNode(keyNode, 'XPub')) {
            throw new Error('Expected XPub node');
        }
        if (typeof keyNode.XPub !== 'string') {
            throw new Error('Expected XPub string');
        }
        const parts = keyNode.XPub.split('/');
        return { xpub: parts[0], path: parts.slice(1).join('/') };
    });
    const paths = keyWithPath.map((k) => k.path);
    paths.forEach((path, i) => {
        if (path !== paths[0]) {
            throw new Error(`Expected all paths to be the same: ${path} !== ${paths[0]}`);
        }
    });
    return {
        threshold,
        keys: keyWithPath.map((k) => utxolib.bip32.fromBase58(k.xpub)),
        path: paths[0],
    };
}
function parseWshMulti(node) {
    const wshMsMulti = unwrapNode(node, ['Wsh', 'Ms', 'Multi']);
    if (wshMsMulti) {
        const { threshold, keys, path } = parseMulti(wshMsMulti);
        let name;
        if (threshold === 2 && keys.length === 2) {
            name = 'Wsh2Of2';
        }
        else if (threshold === 2 && keys.length === 3) {
            name = 'Wsh2Of3';
        }
        else {
            throw new Error('Unexpected multisig');
        }
        return {
            name,
            keys,
            path,
        };
    }
}
function parseCltvDrop(node, name, wrapping) {
    const unwrapped = unwrapNode(node, wrapping);
    if (!unwrapped) {
        return;
    }
    if (Array.isArray(unwrapped) && unwrapped.length === 2) {
        const [a, b] = unwrapped;
        const dropAfterAbsLocktime = unwrapNode(a, ['Drop', 'After', 'absLockTime']);
        if (typeof dropAfterAbsLocktime !== 'number') {
            throw new Error('Expected absLockTime number');
        }
        if (!isUnaryNode(b, 'Multi')) {
            throw new Error('Expected Multi node');
        }
        const multi = parseMulti(b.Multi);
        if (multi.threshold === 2 && multi.keys.length === 3) {
            return {
                name,
                locktime: dropAfterAbsLocktime,
                keys: multi.keys,
                path: multi.path,
            };
        }
    }
}
function parseDescriptorNode(node) {
    const parsed = parseWshMulti(node) ??
        parseCltvDrop(node, 'ShWsh2Of3CltvDrop', ['Sh', 'Wsh', 'Ms', 'AndV']) ??
        parseCltvDrop(node, 'Wsh2Of3CltvDrop', ['Wsh', 'Ms', 'AndV']);
    if (!parsed) {
        throw new Error('Failed to parse descriptor node');
    }
    return parsed;
}
function parseDescriptor(descriptor) {
    const builder = parseDescriptorNode(descriptor.node());
    if ((0, builder_1.getDescriptorFromBuilder)(builder).toString() !== descriptor.toString()) {
        throw new Error('Failed to parse descriptor');
    }
    return builder;
}
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{ BIP32Interface } from '@bitgo/utxo-lib';\nimport * as utxolib from '@bitgo/utxo-lib';\nimport { Descriptor } from '@bitgo/wasm-miniscript';\n\nimport { DescriptorBuilder, getDescriptorFromBuilder } from './builder';\n\ntype NodeUnary<Key extends string> = { [k in Key]: unknown };\n\nfunction isUnaryNode<TKey extends string>(node: unknown, key: TKey): node is NodeUnary<TKey> {\n  if (typeof node !== 'object' || node === null) {\n    return false;\n  }\n  const keys = Object.keys(node);\n  return keys.length === 1 && keys[0] === key;\n}\n\nfunction unwrapNode(node: unknown, path: string[]): unknown {\n  let current = node;\n  for (const key of path) {\n    if (!isUnaryNode(current, key)) {\n      return undefined;\n    }\n    current = current[key];\n  }\n  return current;\n}\n\nfunction parseMulti(node: unknown): {\n  threshold: number;\n  keys: BIP32Interface[];\n  path: string;\n} {\n  if (!Array.isArray(node)) {\n    throw new Error('Unexpected node');\n  }\n  const [threshold, ...keyNodes] = node;\n  if (typeof threshold !== 'number') {\n    throw new Error('Expected threshold number');\n  }\n  const keyWithPath = keyNodes.map((keyNode) => {\n    if (!isUnaryNode(keyNode, 'XPub')) {\n      throw new Error('Expected XPub node');\n    }\n    if (typeof keyNode.XPub !== 'string') {\n      throw new Error('Expected XPub string');\n    }\n    const parts = keyNode.XPub.split('/');\n    return { xpub: parts[0], path: parts.slice(1).join('/') };\n  });\n  const paths = keyWithPath.map((k) => k.path);\n  paths.forEach((path, i) => {\n    if (path !== paths[0]) {\n      throw new Error(`Expected all paths to be the same: ${path} !== ${paths[0]}`);\n    }\n  });\n  return {\n    threshold,\n    keys: keyWithPath.map((k) => utxolib.bip32.fromBase58(k.xpub)),\n    path: paths[0],\n  };\n}\n\nfunction parseWshMulti(node: unknown): DescriptorBuilder | undefined {\n  const wshMsMulti = unwrapNode(node, ['Wsh', 'Ms', 'Multi']);\n  if (wshMsMulti) {\n    const { threshold, keys, path } = parseMulti(wshMsMulti);\n    let name;\n    if (threshold === 2 && keys.length === 2) {\n      name = 'Wsh2Of2';\n    } else if (threshold === 2 && keys.length === 3) {\n      name = 'Wsh2Of3';\n    } else {\n      throw new Error('Unexpected multisig');\n    }\n    return {\n      name,\n      keys,\n      path,\n    };\n  }\n}\n\nfunction parseCltvDrop(\n  node: unknown,\n  name: 'Wsh2Of3CltvDrop' | 'ShWsh2Of3CltvDrop',\n  wrapping: string[]\n): DescriptorBuilder | undefined {\n  const unwrapped = unwrapNode(node, wrapping);\n  if (!unwrapped) {\n    return;\n  }\n  if (Array.isArray(unwrapped) && unwrapped.length === 2) {\n    const [a, b] = unwrapped;\n    const dropAfterAbsLocktime = unwrapNode(a, ['Drop', 'After', 'absLockTime']);\n    if (typeof dropAfterAbsLocktime !== 'number') {\n      throw new Error('Expected absLockTime number');\n    }\n    if (!isUnaryNode(b, 'Multi')) {\n      throw new Error('Expected Multi node');\n    }\n    const multi = parseMulti(b.Multi);\n    if (multi.threshold === 2 && multi.keys.length === 3) {\n      return {\n        name,\n        locktime: dropAfterAbsLocktime,\n        keys: multi.keys,\n        path: multi.path,\n      };\n    }\n  }\n}\n\nexport function parseDescriptorNode(node: unknown): DescriptorBuilder {\n  const parsed =\n    parseWshMulti(node) ??\n    parseCltvDrop(node, 'ShWsh2Of3CltvDrop', ['Sh', 'Wsh', 'Ms', 'AndV']) ??\n    parseCltvDrop(node, 'Wsh2Of3CltvDrop', ['Wsh', 'Ms', 'AndV']);\n  if (!parsed) {\n    throw new Error('Failed to parse descriptor node');\n  }\n  return parsed;\n}\n\nexport function parseDescriptor(descriptor: Descriptor): DescriptorBuilder {\n  const builder = parseDescriptorNode(descriptor.node());\n  if (getDescriptorFromBuilder(builder).toString() !== descriptor.toString()) {\n    throw new Error('Failed to parse descriptor');\n  }\n  return builder;\n}\n"]}

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