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- // to use with <input type="url"> fields, as the default pattern only checks for `:`,
- export const DEFAULT_TEXTFIELD_URL_PATTERN = 'https?://.*';
- /**
- * Determines if a URL is valid
- * @param {string} url - A URL to validate.
- * @param {string[]} validProtocols - An array of valid protocols. Defaults to web.
- * @returns {boolean} - True if the URI is valid, false otherwise.
- */
- export function isValidUrl(url: string, validProtocols: string[] = ['http:', 'https:']): boolean {
- try {
- const validationObject = new URL(url);
- if (
- validationObject.protocol === '' ||
- validationObject.hostname === '' ||
- !validProtocols.includes(validationObject.protocol)
- ) {
- return false;
- }
- } catch (e) {
- return false;
- }
- return true;
- }
- /**
- * Determines if an account is valid by checking for a protocol, username
- * and server, delimited by a colon. For example: @username:example.com
- * @param {string} account - An account to validate.
- * @param {string} protocol - The protocol we expect the account to be using.
- * @returns {boolean} - True if the account is valid, false otherwise.
- */
- export function isValidAccount(account: string, protocol: string): boolean {
- if (account.startsWith('@')) {
- // eslint-disable-next-line no-param-reassign
- account = account.slice(1);
- }
- const components = account.split(/:|@/);
- const [service, user, host] = components;
- if (service !== protocol) {
- return false;
- }
- if (components.length !== 3 || !service || !user || !host) {
- return false;
- }
- return true;
- }
- /**
- * Determines if an account is valid by simply checking for a protocol, username
- * and server, delimited by a colon. For example: @username:example.com
- * @param {string} account - An account to validate. Example: @me:matrix.org
- * @returns {boolean} - True if the account is valid, false otherwise.
- */
- export function isValidMatrixAccount(account: string): boolean {
- if (account.startsWith('matrix:')) {
- // eslint-disable-next-line no-param-reassign
- account = account.slice(7);
- }
- if (account.startsWith('@')) {
- // eslint-disable-next-line no-param-reassign
- account = account.slice(1);
- }
- const components = account.split(':');
- const [user, host] = components;
- if (components.length !== 2 || !user || !host) {
- return false;
- }
- return true;
- }
- /**
- * Determines if a fediverse account is valid.
- * For example: @username@example.com
- * @param {string} account - An account to validate.
- * @returns {boolean} - True if the account is valid, false otherwise.
- */
- export function isValidFediverseAccount(account: string): boolean {
- const sanitized = account.replace(/^@+/, '');
- const regex =
- /^(([^<>()[\]\\.,;:\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,}))$/;
- return regex.test(String(sanitized).toLowerCase());
- }
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