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Просмотр файла: TransactionEnvelopeEip4844.js

import * as AccessList from './AccessList.js';
import * as Blobs from './Blobs.js';
import * as Hash from './Hash.js';
import * as Hex from './Hex.js';
import * as Kzg from './Kzg.js';
import * as Rlp from './Rlp.js';
import * as Signature from './Signature.js';
import * as TransactionEnvelope from './TransactionEnvelope.js';
import * as TransactionEnvelopeEip1559 from './TransactionEnvelopeEip1559.js';
export const serializedType = '0x03';
export const type = 'eip4844';
/**
 * Asserts a {@link ox#TransactionEnvelopeEip4844.TransactionEnvelopeEip4844} is valid.
 *
 * @example
 * ```ts twoslash
 * import { TransactionEnvelopeEip4844, Value } from 'ox'
 *
 * TransactionEnvelopeEip4844.assert({
 *   blobVersionedHashes: [],
 *   chainId: 1,
 *   to: '0x0000000000000000000000000000000000000000',
 *   value: Value.fromEther('1'),
 * })
 * // @error: EmptyBlobVersionedHashesError: Blob versioned hashes must not be empty.
 * ```
 *
 * @param envelope - The transaction envelope to assert.
 */
export function assert(envelope) {
    const { blobVersionedHashes } = envelope;
    if (blobVersionedHashes) {
        if (blobVersionedHashes.length === 0)
            throw new Blobs.EmptyBlobVersionedHashesError();
        for (const hash of blobVersionedHashes) {
            const size = Hex.size(hash);
            const version = Hex.toNumber(Hex.slice(hash, 0, 1));
            if (size !== 32)
                throw new Blobs.InvalidVersionedHashSizeError({ hash, size });
            if (version !== Kzg.versionedHashVersion)
                throw new Blobs.InvalidVersionedHashVersionError({
                    hash,
                    version,
                });
        }
    }
    TransactionEnvelopeEip1559.assert(envelope);
}
/**
 * Deserializes a {@link ox#TransactionEnvelopeEip4844.TransactionEnvelopeEip4844} from its serialized form.
 *
 * @example
 * ```ts twoslash
 * import { TransactionEnvelopeEip4844 } from 'ox'
 *
 * const envelope = TransactionEnvelopeEip4844.deserialize('0x03ef0182031184773594008477359400809470997970c51812dc3a010c7d01b50e0d17dc79c8880de0b6b3a764000080c0')
 * // @log: {
 * // @log:   blobVersionedHashes: [...],
 * // @log:   type: 'eip4844',
 * // @log:   nonce: 785n,
 * // @log:   maxFeePerGas: 2000000000n,
 * // @log:   gas: 1000000n,
 * // @log:   to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
 * // @log:   value: 1000000000000000000n,
 * // @log: }
 * ```
 *
 * @param serialized - The serialized transaction.
 * @returns Deserialized Transaction Envelope.
 */
export function deserialize(serialized) {
    const transactionOrWrapperArray = Rlp.toHex(Hex.slice(serialized, 1));
    const hasNetworkWrapper = transactionOrWrapperArray.length === 4;
    const transactionArray = hasNetworkWrapper
        ? transactionOrWrapperArray[0]
        : transactionOrWrapperArray;
    const wrapperArray = hasNetworkWrapper
        ? transactionOrWrapperArray.slice(1)
        : [];
    const [chainId, nonce, maxPriorityFeePerGas, maxFeePerGas, gas, to, value, data, accessList, maxFeePerBlobGas, blobVersionedHashes, yParity, r, s,] = transactionArray;
    const [blobs, commitments, proofs] = wrapperArray;
    if (!(transactionArray.length === 11 || transactionArray.length === 14))
        throw new TransactionEnvelope.InvalidSerializedError({
            attributes: {
                chainId,
                nonce,
                maxPriorityFeePerGas,
                maxFeePerGas,
                gas,
                to,
                value,
                data,
                accessList,
                ...(transactionArray.length > 9
                    ? {
                        yParity,
                        r,
                        s,
                    }
                    : {}),
            },
            serialized,
            type,
        });
    let transaction = {
        blobVersionedHashes: blobVersionedHashes,
        chainId: Number(chainId),
        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(maxFeePerBlobGas) && maxFeePerBlobGas !== '0x')
        transaction.maxFeePerBlobGas = BigInt(maxFeePerBlobGas);
    if (Hex.validate(maxFeePerGas) && maxFeePerGas !== '0x')
        transaction.maxFeePerGas = BigInt(maxFeePerGas);
    if (Hex.validate(maxPriorityFeePerGas) && maxPriorityFeePerGas !== '0x')
        transaction.maxPriorityFeePerGas = BigInt(maxPriorityFeePerGas);
    if (accessList?.length !== 0 && accessList !== '0x')
        transaction.accessList = AccessList.fromTupleList(accessList);
    if (blobs && commitments && proofs)
        transaction.sidecars = Blobs.toSidecars(blobs, {
            commitments: commitments,
            proofs: proofs,
        });
    const signature = r && s && yParity
        ? Signature.fromTuple([yParity, r, s])
        : undefined;
    if (signature)
        transaction = {
            ...transaction,
            ...signature,
        };
    assert(transaction);
    return transaction;
}
/**
 * Converts an arbitrary transaction object into an EIP-4844 Transaction Envelope.
 *
 * @example
 * ```ts twoslash
 * // @noErrors
 * import { Blobs, TransactionEnvelopeEip4844, Value } from 'ox'
 * import { kzg } from './kzg'
 *
 * const blobs = Blobs.from('0xdeadbeef')
 * const blobVersionedHashes = Blobs.toVersionedHashes(blobs, { kzg })
 *
 * const envelope = TransactionEnvelopeEip4844.from({
 *   chainId: 1,
 *   blobVersionedHashes,
 *   maxFeePerBlobGas: Value.fromGwei('3'),
 *   maxFeePerGas: Value.fromGwei('10'),
 *   maxPriorityFeePerGas: Value.fromGwei('1'),
 *   to: '0x0000000000000000000000000000000000000000',
 *   value: Value.fromEther('1'),
 * })
 * ```
 *
 * @example
 * ### Attaching Signatures
 *
 * It is possible to attach a `signature` to the transaction envelope.
 *
 * ```ts twoslash
 * // @noErrors
 * import { Blobs, Secp256k1, TransactionEnvelopeEip4844, Value } from 'ox'
 * import { kzg } from './kzg'
 *
 * const blobs = Blobs.from('0xdeadbeef')
 * const sidecars = Blobs.toSidecars(blobs, { kzg })
 * const blobVersionedHashes = Blobs.sidecarsToVersionedHashes(sidecars)
 *
 * const envelope = TransactionEnvelopeEip4844.from({
 *   blobVersionedHashes,
 *   chainId: 1,
 *   maxFeePerBlobGas: Value.fromGwei('3'),
 *   maxFeePerGas: Value.fromGwei('10'),
 *   maxPriorityFeePerGas: Value.fromGwei('1'),
 *   to: '0x0000000000000000000000000000000000000000',
 *   value: Value.fromEther('1'),
 * })
 *
 * const signature = Secp256k1.sign({
 *   payload: TransactionEnvelopeEip4844.getSignPayload(envelope),
 *   privateKey: '0x...',
 * })
 *
 * const envelope_signed = TransactionEnvelopeEip4844.from(envelope, { // [!code focus]
 *   sidecars, // [!code focus]
 *   signature, // [!code focus]
 * }) // [!code focus]
 * // @log: {
 * // @log:   blobVersionedHashes: [...],
 * // @log:   chainId: 1,
 * // @log:   maxFeePerBlobGas: 3000000000n,
 * // @log:   maxFeePerGas: 10000000000n,
 * // @log:   maxPriorityFeePerGas: 1000000000n,
 * // @log:   to: '0x0000000000000000000000000000000000000000',
 * // @log:   type: 'eip4844',
 * // @log:   value: 1000000000000000000n,
 * // @log:   r: 125...n,
 * // @log:   s: 642...n,
 * // @log:   yParity: 0,
 * // @log: }
 * ```
 *
 * @example
 * ### From Serialized
 *
 * It is possible to instantiate an EIP-4844 Transaction Envelope from a {@link ox#TransactionEnvelopeEip4844.Serialized} value.
 *
 * ```ts twoslash
 * import { TransactionEnvelopeEip4844 } from 'ox'
 *
 * const envelope = TransactionEnvelopeEip4844.from('0x03f858018203118502540be4008504a817c800809470997970c51812dc3a010c7d01b50e0d17dc79c8880de0b6b3a764000080c08477359400e1a001627c687261b0e7f8638af1112efa8a77e23656f6e7945275b19e9deed80261')
 * // @log: {
 * // @log:   blobVersionedHashes: [...],
 * // @log:   chainId: 1,
 * // @log:   maxFeePerGas: 10000000000n,
 * // @log:   to: '0x0000000000000000000000000000000000000000',
 * // @log:   type: 'eip4844',
 * // @log:   value: 1000000000000000000n,
 * // @log: }
 * ```
 *
 * @param envelope - The transaction object to convert.
 * @param options - Options.
 * @returns An EIP-4844 Transaction Envelope.
 */
export function from(envelope, options = {}) {
    const { signature } = options;
    const envelope_ = (typeof envelope === 'string' ? deserialize(envelope) : envelope);
    assert(envelope_);
    return {
        ...envelope_,
        ...(signature ? Signature.from(signature) : {}),
        type: 'eip4844',
    };
}
/**
 * Returns the payload to sign for a {@link ox#TransactionEnvelopeEip4844.TransactionEnvelopeEip4844}.
 *
 * @example
 * The example below demonstrates how to compute the sign payload which can be used
 * with ECDSA signing utilities like {@link ox#Secp256k1.(sign:function)}.
 *
 * ```ts twoslash
 * // @noErrors
 * import { Blobs, Secp256k1, TransactionEnvelopeEip4844 } from 'ox'
 * import { kzg } from './kzg'
 *
 * const blobs = Blobs.from('0xdeadbeef')
 * const blobVersionedHashes = Blobs.toVersionedHashes(blobs, { kzg })
 *
 * const envelope = TransactionEnvelopeEip4844.from({
 *   blobVersionedHashes,
 *   chainId: 1,
 *   nonce: 0n,
 *   maxFeePerGas: 1000000000n,
 *   gas: 21000n,
 *   to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
 *   value: 1000000000000000000n,
 * })
 *
 * const payload = TransactionEnvelopeEip4844.getSignPayload(envelope) // [!code focus]
 * // @log: '0x...'
 *
 * const signature = Secp256k1.sign({ payload, privateKey: '0x...' })
 * ```
 *
 * @param envelope - The transaction envelope to get the sign payload for.
 * @returns The sign payload.
 */
export function getSignPayload(envelope) {
    return hash(envelope, { presign: true });
}
/**
 * Hashes a {@link ox#TransactionEnvelopeEip4844.TransactionEnvelopeEip4844}. This is the "transaction hash".
 *
 * @example
 * ```ts twoslash
 * // @noErrors
 * import { Blobs, TransactionEnvelopeEip4844 } from 'ox'
 * import { kzg } from './kzg'
 *
 * const blobs = Blobs.from('0xdeadbeef')
 * const blobVersionedHashes = Blobs.toVersionedHashes(blobs, { kzg })
 *
 * const envelope = TransactionEnvelopeEip4844.from({
 *   blobVersionedHashes,
 *   chainId: 1,
 *   nonce: 0n,
 *   maxFeePerGas: 1000000000n,
 *   gas: 21000n,
 *   to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
 *   value: 1000000000000000000n,
 * })
 *
 * const hash = TransactionEnvelopeEip4844.hash(envelope) // [!code focus]
 * ```
 *
 * @param envelope - The EIP-4844 Transaction Envelope to hash.
 * @param options - Options.
 * @returns The hash of the transaction envelope.
 */
export function hash(envelope, options = {}) {
    const { presign } = options;
    return Hash.keccak256(serialize({
        ...envelope,
        ...(presign
            ? {
                sidecars: undefined,
                r: undefined,
                s: undefined,
                yParity: undefined,
                v: undefined,
            }
            : {}),
    }));
}
/**
 * Serializes a {@link ox#TransactionEnvelopeEip4844.TransactionEnvelopeEip4844}.
 *
 * @example
 * ```ts twoslash
 * // @noErrors
 * import { Blobs, TransactionEnvelopeEip4844 } from 'ox'
 * import { kzg } from './kzg'
 *
 * const blobs = Blobs.from('0xdeadbeef')
 * const blobVersionedHashes = Blobs.toVersionedHashes(blobs, { kzg })
 *
 * const envelope = TransactionEnvelopeEip4844.from({
 *   blobVersionedHashes,
 *   chainId: 1,
 *   maxFeePerGas: Value.fromGwei('10'),
 *   to: '0x0000000000000000000000000000000000000000',
 *   value: Value.fromEther('1'),
 * })
 *
 * const serialized = TransactionEnvelopeEip4844.serialize(envelope) // [!code focus]
 * ```
 *
 * @example
 * ### Attaching Signatures
 *
 * It is possible to attach a `signature` to the serialized Transaction Envelope.
 *
 * ```ts twoslash
 * // @noErrors
 * import { Blobs, Secp256k1, TransactionEnvelopeEip4844, Value } from 'ox'
 * import { kzg } from './kzg'
 *
 * const blobs = Blobs.from('0xdeadbeef')
 * const sidecars = Blobs.toSidecars(blobs, { kzg })
 * const blobVersionedHashes = Blobs.sidecarsToVersionedHashes(blobs)
 *
 * const envelope = TransactionEnvelopeEip4844.from({
 *   blobVersionedHashes,
 *   chainId: 1,
 *   maxFeePerBlobGas: Value.fromGwei('3'),
 *   maxFeePerGas: Value.fromGwei('10'),
 *   maxPriorityFeePerGas: Value.fromGwei('1'),
 *   to: '0x0000000000000000000000000000000000000000',
 *   value: Value.fromEther('1'),
 * })
 *
 * const signature = Secp256k1.sign({
 *   payload: TransactionEnvelopeEip4844.getSignPayload(envelope),
 *   privateKey: '0x...',
 * })
 *
 * const serialized = TransactionEnvelopeEip4844.serialize(envelope, { // [!code focus]
 *   sidecars, // [!code focus]
 *   signature, // [!code focus]
 * }) // [!code focus]
 *
 * // ... send `serialized` transaction to JSON-RPC `eth_sendRawTransaction`
 * ```
 *
 * @param envelope - The Transaction Envelope to serialize.
 * @param options - Options.
 * @returns The serialized Transaction Envelope.
 */
export function serialize(envelope, options = {}) {
    const { blobVersionedHashes, chainId, gas, nonce, to, value, maxFeePerBlobGas, maxFeePerGas, maxPriorityFeePerGas, accessList, data, } = envelope;
    assert(envelope);
    const accessTupleList = AccessList.toTupleList(accessList);
    const signature = Signature.extract(options.signature || envelope);
    const serialized = [
        Hex.fromNumber(chainId),
        nonce ? Hex.fromNumber(nonce) : '0x',
        maxPriorityFeePerGas ? Hex.fromNumber(maxPriorityFeePerGas) : '0x',
        maxFeePerGas ? Hex.fromNumber(maxFeePerGas) : '0x',
        gas ? Hex.fromNumber(gas) : '0x',
        to ?? '0x',
        value ? Hex.fromNumber(value) : '0x',
        data ?? '0x',
        accessTupleList,
        maxFeePerBlobGas ? Hex.fromNumber(maxFeePerBlobGas) : '0x',
        blobVersionedHashes ?? [],
        ...(signature ? Signature.toTuple(signature) : []),
    ];
    const sidecars = options.sidecars || envelope.sidecars;
    const blobs = [];
    const commitments = [];
    const proofs = [];
    if (sidecars)
        for (let i = 0; i < sidecars.length; i++) {
            const { blob, commitment, proof } = sidecars[i];
            blobs.push(blob);
            commitments.push(commitment);
            proofs.push(proof);
        }
    return Hex.concat('0x03', sidecars
        ? // If sidecars are provided, envelope turns into a "network wrapper":
            Rlp.fromHex([serialized, blobs, commitments, proofs])
        : // Otherwise, standard envelope is used:
            Rlp.fromHex(serialized));
}
/**
 * Converts an {@link ox#TransactionEnvelopeEip4844.TransactionEnvelopeEip4844} to an {@link ox#TransactionEnvelopeEip4844.Rpc}.
 *
 * @example
 * ```ts twoslash
 * // @noErrors
 * import { Blobs, RpcRequest, TransactionEnvelopeEip4844, Value } from 'ox'
 * import { kzg } from './kzg'
 *
 * const blobs = Blobs.from('0xdeadbeef')
 * const blobVersionedHashes = Blobs.toVersionedHashes(blobs, { kzg })
 *
 * const envelope = TransactionEnvelopeEip4844.from({
 *   blobVersionedHashes,
 *   chainId: 1,
 *   nonce: 0n,
 *   gas: 21000n,
 *   maxFeePerBlobGas: Value.fromGwei('20'),
 *   to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
 *   value: Value.fromEther('1'),
 * })
 *
 * const envelope_rpc = TransactionEnvelopeEip4844.toRpc(envelope) // [!code focus]
 *
 * const request = RpcRequest.from({
 *   id: 0,
 *   method: 'eth_sendTransaction',
 *   params: [envelope_rpc],
 * })
 * ```
 *
 * @param envelope - The EIP-4844 transaction envelope to convert.
 * @returns An RPC-formatted EIP-4844 transaction envelope.
 */
export function toRpc(envelope) {
    const signature = Signature.extract(envelope);
    return {
        ...envelope,
        chainId: Hex.fromNumber(envelope.chainId),
        data: envelope.data ?? envelope.input,
        ...(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.maxFeePerBlobGas === 'bigint'
            ? { maxFeePerBlobGas: Hex.fromNumber(envelope.maxFeePerBlobGas) }
            : {}),
        ...(typeof envelope.maxFeePerGas === 'bigint'
            ? { maxFeePerGas: Hex.fromNumber(envelope.maxFeePerGas) }
            : {}),
        ...(typeof envelope.maxPriorityFeePerGas === 'bigint'
            ? { maxPriorityFeePerGas: Hex.fromNumber(envelope.maxPriorityFeePerGas) }
            : {}),
        type: '0x3',
        ...(signature ? Signature.toRpc(signature) : {}),
    };
}
/**
 * Validates a {@link ox#TransactionEnvelopeEip4844.TransactionEnvelopeEip4844}. Returns `true` if the envelope is valid, `false` otherwise.
 *
 * @example
 * ```ts twoslash
 * import { TransactionEnvelopeEip4844, Value } from 'ox'
 *
 * const valid = TransactionEnvelopeEip4844.assert({
 *   blobVersionedHashes: [],
 *   chainId: 1,
 *   to: '0x0000000000000000000000000000000000000000',
 *   value: Value.fromEther('1'),
 * })
 * // @log: false
 * ```
 *
 * @param envelope - The transaction envelope to validate.
 */
export function validate(envelope) {
    try {
        assert(envelope);
        return true;
    }
    catch {
        return false;
    }
}
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