opstack-kit-chains/_esm/utils/typedData.js

Support your OP-Stack network with 'opstack-kit'

import { BytesSizeMismatchError } from '../errors/abi.js';
import { InvalidAddressError } from '../errors/address.js';
import { isAddress } from './address/isAddress.js';
import { size } from './data/size.js';
import { numberToHex } from './encoding/toHex.js';
import { bytesRegex, integerRegex } from './regex.js';
import { hashDomain, } from './signature/hashTypedData.js';
import { stringify } from './stringify.js';
export function serializeTypedData(parameters) {
    const { domain: domain_, message: message_, primaryType, types, } = parameters;
    const normalizeData = (struct, data_) => {
        const data = { ...data_ };
        for (const param of struct) {
            const { name, type } = param;
            if (type === 'address')
                data[name] = data[name].toLowerCase();
        }
        return data;
    };
    const domain = (() => {
        if (!types.EIP712Domain)
            return {};
        if (!domain_)
            return {};
        return normalizeData(types.EIP712Domain, domain_);
    })();
    const message = (() => {
        if (primaryType === 'EIP712Domain')
            return undefined;
        return normalizeData(types[primaryType], message_);
    })();
    return stringify({ domain, message, primaryType, types });
}
export function validateTypedData(parameters) {
    const { domain, message, primaryType, types } = parameters;
    const validateData = (struct, data) => {
        for (const param of struct) {
            const { name, type } = param;
            const value = data[name];
            const integerMatch = type.match(integerRegex);
            if (integerMatch &&
                (typeof value === 'number' || typeof value === 'bigint')) {
                const [_type, base, size_] = integerMatch;
                // If number cannot be cast to a sized hex value, it is out of range
                // and will throw.
                numberToHex(value, {
                    signed: base === 'int',
                    size: Number.parseInt(size_) / 8,
                });
            }
            if (type === 'address' && typeof value === 'string' && !isAddress(value))
                throw new InvalidAddressError({ address: value });
            const bytesMatch = type.match(bytesRegex);
            if (bytesMatch) {
                const [_type, size_] = bytesMatch;
                if (size_ && size(value) !== Number.parseInt(size_))
                    throw new BytesSizeMismatchError({
                        expectedSize: Number.parseInt(size_),
                        givenSize: size(value),
                    });
            }
            const struct = types[type];
            if (struct)
                validateData(struct, value);
        }
    };
    // Validate domain types.
    if (types.EIP712Domain && domain)
        validateData(types.EIP712Domain, domain);
    // Validate message types.
    if (primaryType !== 'EIP712Domain')
        validateData(types[primaryType], message);
}
export function getTypesForEIP712Domain({ domain, }) {
    return [
        typeof domain?.name === 'string' && { name: 'name', type: 'string' },
        domain?.version && { name: 'version', type: 'string' },
        typeof domain?.chainId === 'number' && {
            name: 'chainId',
            type: 'uint256',
        },
        domain?.verifyingContract && {
            name: 'verifyingContract',
            type: 'address',
        },
        domain?.salt && { name: 'salt', type: 'bytes32' },
    ].filter(Boolean);
}
export function domainSeparator({ domain }) {
    return hashDomain({
        domain,
        types: {
            EIP712Domain: getTypesForEIP712Domain({ domain }),
        },
    });
}
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