67 lines
2.1 KiB
TypeScript
67 lines
2.1 KiB
TypeScript
// to use with <input type="url"> fields, as the default pattern only checks for `:`,
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export const DEFAULT_TEXTFIELD_URL_PATTERN = 'https?://.*';
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/**
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* Determines if a URL is valid
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* @param {string} url - A URL to validate.
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* @param {string[]} validProtocols - An array of valid protocols. Defaults to web.
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* @returns {boolean} - True if the URI is valid, false otherwise.
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*/
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export function isValidUrl(url: string, validProtocols: string[] = ['http:', 'https:']): boolean {
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try {
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const validationObject = new URL(url);
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if (
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validationObject.protocol === '' ||
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validationObject.hostname === '' ||
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!validProtocols.includes(validationObject.protocol)
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) {
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return false;
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}
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} catch (e) {
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return false;
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}
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return true;
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}
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/**
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* Determines if an account is valid by checking for a protocol, username
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* and server, delimited by a colon. For example: @username:example.com
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* @param {string} account - An account to validate.
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* @param {string} protocol - The protocol we expect the account to be using.
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* @returns {boolean} - True if the account is valid, false otherwise.
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*/
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export function isValidAccount(account: string, protocol: string): boolean {
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if (account.startsWith('@')) {
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// eslint-disable-next-line no-param-reassign
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account = account.slice(1);
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}
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const components = account.split(/:|@/);
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const [service, user, host] = components;
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if (service !== protocol) {
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return false;
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}
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if (components.length !== 3 || !service || !user || !host) {
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return false;
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}
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return true;
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}
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/**
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* Determines if a fediverse account is valid.
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* For example: @username@example.com
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* @param {string} account - An account to validate.
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* @returns {boolean} - True if the account is valid, false otherwise.
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*/
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export function isValidFediverseAccount(account: string): boolean {
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const sanitized = account.replace(/^@+/, '');
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const regex =
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/^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
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return regex.test(String(sanitized).toLowerCase());
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}
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