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metamask-extension/ui/hooks/useOriginMetadata.js

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2021-02-22 17:20:42 +01:00
import { useSelector } from 'react-redux';
import { getDomainMetadata } from '../selectors';
/**
* @typedef {Object} OriginMetadata
* @property {string} host - The host of the origin
* @property {string} hostname - The hostname of the origin (host + port)
* @property {string} origin - The original origin string itself
* @property {string} [icon] - The origin's site icon if available
* @property {number} [lastUpdated] - Timestamp of the last update to the
* origin's metadata
* @property {string} [name] - The registered name of the origin if available
*/
/**
* Gets origin metadata from redux and formats it appropriately.
* @param {string} origin - The fully formed url of the site interacting with
* MetaMask
* @returns {OriginMetadata | null} - The origin metadata available for the
* current origin
*/
export function useOriginMetadata(origin) {
const domainMetaData = useSelector(getDomainMetadata);
if (!origin) {
return null;
}
const url = new URL(origin);
const minimumOriginMetadata = {
host: url.host,
hostname: url.hostname,
origin,
};
if (domainMetaData?.[origin]) {
return {
...minimumOriginMetadata,
...domainMetaData[origin],
};
}
return minimumOriginMetadata;
}