127 lines
4.4 KiB
JavaScript
127 lines
4.4 KiB
JavaScript
"use strict";
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
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result["default"] = mod;
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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var address_1 = require("./address");
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var bignumber_1 = require("./bignumber");
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var bytes_1 = require("./bytes");
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var keccak256_1 = require("./keccak256");
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var secp256k1_1 = require("./secp256k1");
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var RLP = __importStar(require("./rlp"));
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function handleAddress(value) {
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if (value === '0x') {
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return null;
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}
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return address_1.getAddress(value);
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}
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function handleNumber(value) {
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if (value === '0x') {
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return bignumber_1.ConstantZero;
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}
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return bignumber_1.bigNumberify(value);
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}
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var transactionFields = [
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{ name: 'nonce', maxLength: 32 },
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{ name: 'gasPrice', maxLength: 32 },
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{ name: 'gasLimit', maxLength: 32 },
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{ name: 'to', length: 20 },
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{ name: 'value', maxLength: 32 },
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{ name: 'data' },
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];
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function sign(transaction, signDigest) {
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var raw = [];
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transactionFields.forEach(function (fieldInfo) {
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var value = transaction[fieldInfo.name] || ([]);
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value = bytes_1.arrayify(bytes_1.hexlify(value));
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// Fixed-width field
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if (fieldInfo.length && value.length !== fieldInfo.length && value.length > 0) {
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var error = new Error('invalid ' + fieldInfo.name);
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error.reason = 'wrong length';
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error.value = value;
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throw error;
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}
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// Variable-width (with a maximum)
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if (fieldInfo.maxLength) {
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value = bytes_1.stripZeros(value);
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if (value.length > fieldInfo.maxLength) {
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var error = new Error('invalid ' + fieldInfo.name);
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error.reason = 'too long';
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error.value = value;
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throw error;
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}
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}
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raw.push(bytes_1.hexlify(value));
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});
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if (transaction.chainId) {
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raw.push(bytes_1.hexlify(transaction.chainId));
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raw.push('0x');
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raw.push('0x');
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}
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var digest = keccak256_1.keccak256(RLP.encode(raw));
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var signature = signDigest(digest);
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var v = 27 + signature.recoveryParam;
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if (transaction.chainId) {
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raw.pop();
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raw.pop();
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raw.pop();
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v += transaction.chainId * 2 + 8;
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}
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raw.push(bytes_1.hexlify(v));
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raw.push(bytes_1.stripZeros(bytes_1.arrayify(signature.r)));
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raw.push(bytes_1.stripZeros(bytes_1.arrayify(signature.s)));
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return RLP.encode(raw);
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}
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exports.sign = sign;
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function parse(rawTransaction) {
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var signedTransaction = RLP.decode(rawTransaction);
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if (signedTransaction.length !== 9) {
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throw new Error('invalid transaction');
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}
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var tx = {
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nonce: handleNumber(signedTransaction[0]).toNumber(),
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gasPrice: handleNumber(signedTransaction[1]),
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gasLimit: handleNumber(signedTransaction[2]),
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to: handleAddress(signedTransaction[3]),
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value: handleNumber(signedTransaction[4]),
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data: signedTransaction[5],
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chainId: 0
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};
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var v = bytes_1.arrayify(signedTransaction[6]);
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var r = bytes_1.arrayify(signedTransaction[7]);
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var s = bytes_1.arrayify(signedTransaction[8]);
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if (v.length >= 1 && r.length >= 1 && r.length <= 32 && s.length >= 1 && s.length <= 32) {
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tx.v = bignumber_1.bigNumberify(v).toNumber();
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tx.r = bytes_1.hexZeroPad(signedTransaction[7], 32);
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tx.s = bytes_1.hexZeroPad(signedTransaction[8], 32);
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var chainId = (tx.v - 35) / 2;
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if (chainId < 0) {
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chainId = 0;
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}
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chainId = Math.trunc(chainId);
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tx.chainId = chainId;
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var recoveryParam = tx.v - 27;
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var raw = signedTransaction.slice(0, 6);
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if (chainId) {
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raw.push(bytes_1.hexlify(chainId));
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raw.push('0x');
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raw.push('0x');
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recoveryParam -= chainId * 2 + 8;
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}
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var digest = keccak256_1.keccak256(RLP.encode(raw));
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try {
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tx.from = secp256k1_1.recoverAddress(digest, { r: bytes_1.hexlify(r), s: bytes_1.hexlify(s), recoveryParam: recoveryParam });
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}
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catch (error) {
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console.log(error);
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}
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tx.hash = keccak256_1.keccak256(rawTransaction);
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}
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return tx;
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}
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exports.parse = parse;
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