fb7ae46cfe
- Recover bid heights from the TXRecords. Historical not-owned bids will
have them default (-1) for the migration, as TXRecords for them are not
recorded.
- Link owned bid <-> reveals. Historical not-owned bids will have them
default (null outpoint) for the migration, as TXRecords for them are
not recorded.
88 lines
2.5 KiB
JavaScript
88 lines
2.5 KiB
JavaScript
'use strict';
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const assert = require('bsert');
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const blake2b = require('bcrypto/lib/blake2b');
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const random = require('bcrypto/lib/random');
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const ChainEntry = require('../../lib/blockchain/chainentry');
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const Input = require('../../lib/primitives/input');
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const Outpoint = require('../../lib/primitives/outpoint');
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const {ZERO_HASH} = require('../../lib/protocol/consensus');
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const walletUtils = exports;
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walletUtils.fakeBlock = (height, prevSeed = 0, seed = prevSeed) => {
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assert(height >= 0);
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const prev = height === 0 ? ZERO_HASH : blake2b.digest(fromU32(((height - 1) ^ prevSeed) >>> 0));
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const hash = blake2b.digest(fromU32((height ^ seed) >>> 0));
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const root = blake2b.digest(fromU32((height | 0x80000000 ^ seed) >>> 0));
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return {
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hash: hash,
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prevBlock: prev,
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merkleRoot: root,
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time: 500000000 + (height * (10 * 60)),
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bits: 0,
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nonce: 0,
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height: height,
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version: 0,
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witnessRoot: Buffer.alloc(32),
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treeRoot: Buffer.alloc(32),
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reservedRoot: Buffer.alloc(32),
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extraNonce: Buffer.alloc(24),
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mask: Buffer.alloc(32)
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};
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};
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walletUtils.dummyInput = () => {
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const hash = random.randomBytes(32);
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return Input.fromOutpoint(new Outpoint(hash, 0));
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};
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walletUtils.deterministicInput = (id) => {
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const hash = blake2b.digest(fromU32(id));
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return Input.fromOutpoint(new Outpoint(hash, 0));
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};
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walletUtils.nextBlock = (wdb, prevSeed = 0, seed = prevSeed) => {
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return walletUtils.fakeBlock(wdb.state.height + 1, prevSeed, seed);
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};
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walletUtils.curBlock = (wdb, prevSeed = 0, seed = prevSeed) => {
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return walletUtils.fakeBlock(wdb.state.height, prevSeed, seed);
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};
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walletUtils.fakeEntry = (height, prevSeed = 0, curSeed = prevSeed) => {
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const cur = walletUtils.fakeBlock(height, prevSeed, curSeed);
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return new ChainEntry(cur);;
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};
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walletUtils.nextEntry = (wdb, curSeed = 0, nextSeed = curSeed) => {
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const next = walletUtils.nextBlock(wdb, curSeed, nextSeed);
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return new ChainEntry(next);
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};
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walletUtils.curEntry = (wdb, prevSeed = 0, seed = prevSeed) => {
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return walletUtils.fakeEntry(wdb.state.height, seed);
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};
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function fromU32(num) {
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const data = Buffer.allocUnsafe(4);
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data.writeUInt32LE(num, 0, true);
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return data;
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}
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walletUtils.dumpWDB = async (wdb, prefixes) => {
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const data = await wdb.dump();
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const filtered = {};
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for (const [key, value] of Object.entries(data)) {
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for (const prefix of prefixes) {
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if (key.startsWith(prefix)) {
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filtered[key] = value;
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break;
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}
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}
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}
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return filtered;
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};
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