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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/ox/_esm/core

Просмотр файла: Ens.js

import { ens_normalize } from '@adraffy/ens-normalize';
import * as Bytes from './Bytes.js';
import * as Hash from './Hash.js';
import * as Hex from './Hex.js';
import * as internal from './internal/ens.js';
/**
 * Hashes ENS label.
 *
 * Since ENS labels prohibit certain forbidden characters (e.g. underscore) and have other validation rules, you likely want to [normalize ENS labels](https://docs.ens.domains/contract-api-reference/name-processing#normalising-names) with [UTS-46 normalization](https://unicode.org/reports/tr46) before passing them to `labelhash`. You can use the built-in {@link ox#Ens.(normalize:function)} function for this.
 *
 * @example
 * ```ts twoslash
 * import { Ens } from 'ox'
 * Ens.labelhash('eth')
 * '0x4f5b812789fc606be1b3b16908db13fc7a9adf7ca72641f84d75b47069d3d7f0'
 * ```
 *
 * @param label - ENS label.
 * @returns ENS labelhash.
 */
export function labelhash(label) {
    const result = new Uint8Array(32).fill(0);
    if (!label)
        return Hex.fromBytes(result);
    return (internal.unwrapLabelhash(label) || Hash.keccak256(Hex.fromString(label)));
}
/**
 * Hashes ENS name.
 *
 * Since ENS names prohibit certain forbidden characters (e.g. underscore) and have other validation rules, you likely want to [normalize ENS names](https://docs.ens.domains/contract-api-reference/name-processing#normalising-names) with [UTS-46 normalization](https://unicode.org/reports/tr46) before passing them to `namehash`. You can use the built-in {@link ox#Ens.(normalize:function)} function for this.
 *
 * @example
 * ```ts twoslash
 * import { Ens } from 'ox'
 * Ens.namehash('wevm.eth')
 * // @log: '0xf246651c1b9a6b141d19c2604e9a58f567973833990f830d882534a747801359'
 * ```
 *
 * @param name - ENS name.
 * @returns ENS namehash.
 */
export function namehash(name) {
    let result = new Uint8Array(32).fill(0);
    if (!name)
        return Hex.fromBytes(result);
    const labels = name.split('.');
    // Iterate in reverse order building up hash
    for (let i = labels.length - 1; i >= 0; i -= 1) {
        const hashFromEncodedLabel = internal.unwrapLabelhash(labels[i]);
        const hashed = hashFromEncodedLabel
            ? Bytes.fromHex(hashFromEncodedLabel)
            : Hash.keccak256(Bytes.fromString(labels[i]), { as: 'Bytes' });
        result = Hash.keccak256(Bytes.concat(result, hashed), { as: 'Bytes' });
    }
    return Hex.fromBytes(result);
}
/**
 * Normalizes ENS name according to [ENSIP-15](https://github.com/ensdomains/docs/blob/9edf9443de4333a0ea7ec658a870672d5d180d53/ens-improvement-proposals/ensip-15-normalization-standard.md).
 *
 * For more info see [ENS documentation](https://docs.ens.domains/contract-api-reference/name-processing#normalising-names) on name processing.
 *
 * @example
 * ```ts twoslash
 * import { Ens } from 'ox'
 * Ens.normalize('wevm.eth')
 * // @log: 'wevm.eth'
 * ```
 *
 * @param name - ENS name.
 * @returns Normalized ENS name.
 */
export function normalize(name) {
    return ens_normalize(name);
}
//# sourceMappingURL=Ens.js.map

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