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Ethereum Standard Library

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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.type = void 0; exports.assert = assert; exports.deserialize = deserialize; exports.from = from; exports.getSignPayload = getSignPayload; exports.hash = hash; exports.serialize = serialize; exports.toRpc = toRpc; exports.validate = validate; const Address = require("./Address.js"); const Hash = require("./Hash.js"); const Hex = require("./Hex.js"); const Rlp = require("./Rlp.js"); const Signature = require("./Signature.js"); const TransactionEnvelope = require("./TransactionEnvelope.js"); exports.type = 'legacy'; function assert(envelope) { const { chainId, gasPrice, to } = envelope; if (to) Address.assert(to, { strict: false }); if (typeof chainId !== 'undefined' && chainId <= 0) throw new TransactionEnvelope.InvalidChainIdError({ chainId }); if (gasPrice && BigInt(gasPrice) > 2n ** 256n - 1n) throw new TransactionEnvelope.GasPriceTooHighError({ gasPrice }); } function deserialize(serialized) { const tuple = Rlp.toHex(serialized); const [nonce, gasPrice, gas, to, value, data, chainIdOrV_, r, s] = tuple; if (!(tuple.length === 6 || tuple.length === 9)) throw new TransactionEnvelope.InvalidSerializedError({ attributes: { nonce, gasPrice, gas, to, value, data, ...(tuple.length > 6 ? { v: chainIdOrV_, r, s, } : {}), }, serialized, type: exports.type, }); const transaction = { type: exports.type, }; if (Hex.validate(to) && to !== '0x') transaction.to = to; if (Hex.validate(gas) && gas !== '0x') transaction.gas = BigInt(gas); if (Hex.validate(data) && data !== '0x') transaction.data = data; if (Hex.validate(nonce)) transaction.nonce = nonce === '0x' ? 0n : BigInt(nonce); if (Hex.validate(value) && value !== '0x') transaction.value = BigInt(value); if (Hex.validate(gasPrice) && gasPrice !== '0x') transaction.gasPrice = BigInt(gasPrice); if (tuple.length === 6) return transaction; const chainIdOrV = Hex.validate(chainIdOrV_) && chainIdOrV_ !== '0x' ? Number(chainIdOrV_) : 0; if (s === '0x' && r === '0x') { if (chainIdOrV > 0) transaction.chainId = Number(chainIdOrV); return transaction; } const v = chainIdOrV; const chainId = Math.floor((v - 35) / 2); if (chainId > 0) transaction.chainId = chainId; else if (v !== 27 && v !== 28) throw new Signature.InvalidVError({ value: v }); transaction.yParity = Signature.vToYParity(v); transaction.v = v; transaction.s = s === '0x' ? 0n : BigInt(s); transaction.r = r === '0x' ? 0n : BigInt(r); assert(transaction); return transaction; } function from(envelope, options = {}) { const { signature } = options; const envelope_ = (typeof envelope === 'string' ? deserialize(envelope) : envelope); assert(envelope_); const signature_ = (() => { if (!signature) return {}; const s = Signature.from(signature); s.v = Signature.yParityToV(s.yParity); return s; })(); return { ...envelope_, ...signature_, type: 'legacy', }; } function getSignPayload(envelope) { return hash(envelope, { presign: true }); } function hash(envelope, options = {}) { const { presign } = options; return Hash.keccak256(serialize({ ...envelope, ...(presign ? { r: undefined, s: undefined, yParity: undefined, v: undefined, } : {}), })); } function serialize(envelope, options = {}) { const { chainId = 0, gas, data, input, nonce, to, value, gasPrice } = envelope; assert(envelope); let serialized = [ nonce ? Hex.fromNumber(nonce) : '0x', gasPrice ? Hex.fromNumber(gasPrice) : '0x', gas ? Hex.fromNumber(gas) : '0x', to ?? '0x', value ? Hex.fromNumber(value) : '0x', data ?? input ?? '0x', ]; const signature = (() => { if (options.signature) return { r: options.signature.r, s: options.signature.s, v: Signature.yParityToV(options.signature.yParity), }; if (typeof envelope.r === 'undefined' || typeof envelope.s === 'undefined') return undefined; return { r: envelope.r, s: envelope.s, v: envelope.v, }; })(); if (signature) { const v = (() => { if (signature.v >= 35) { const inferredChainId = Math.floor((signature.v - 35) / 2); if (inferredChainId > 0) return signature.v; return 27 + (signature.v === 35 ? 0 : 1); } if (chainId > 0) return chainId * 2 + 35 + signature.v - 27; const v = 27 + (signature.v === 27 ? 0 : 1); if (signature.v !== v) throw new Signature.InvalidVError({ value: signature.v }); return v; })(); serialized = [ ...serialized, Hex.fromNumber(v), signature.r === 0n ? '0x' : Hex.trimLeft(Hex.fromNumber(signature.r)), signature.s === 0n ? '0x' : Hex.trimLeft(Hex.fromNumber(signature.s)), ]; } else if (chainId > 0) serialized = [...serialized, Hex.fromNumber(chainId), '0x', '0x']; return Rlp.fromHex(serialized); } function toRpc(envelope) { const signature = Signature.extract(envelope); return { ...envelope, chainId: typeof envelope.chainId === 'number' ? Hex.fromNumber(envelope.chainId) : undefined, data: envelope.data ?? envelope.input, type: '0x0', ...(typeof envelope.gas === 'bigint' ? { gas: Hex.fromNumber(envelope.gas) } : {}), ...(typeof envelope.nonce === 'bigint' ? { nonce: Hex.fromNumber(envelope.nonce) } : {}), ...(typeof envelope.value === 'bigint' ? { value: Hex.fromNumber(envelope.value) } : {}), ...(typeof envelope.gasPrice === 'bigint' ? { gasPrice: Hex.fromNumber(envelope.gasPrice) } : {}), ...(signature ? { ...Signature.toRpc(signature), v: signature.yParity === 0 ? '0x1b' : '0x1c', } : {}), }; } function validate(envelope) { try { assert(envelope); return true; } catch { return false; } } //# sourceMappingURL=TransactionEnvelopeLegacy.js.map