Function sanitizeGitBookAppURL

packages/gitbook/src/lib/app.ts:16–27

(input: string)

 * Sanitize a URL to be a valid GitBook.com app URL.
 */
export function sanitizeGitBookAppURL(input: string): string | null {
    if (!URL.canParse(input)) {
        return null;
    }

    const url = new URL(input);
    if (url.origin !== GITBOOK_APP_URL) {
        return null;
    }

    return url.toString();
}