/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

import {_sanitizeUrl} from '../../src/sanitization/url_sanitizer';

describe('URL sanitizer', () => {
  let logMsgs: string[];
  let originalLog: (msg: any) => any;

  beforeEach(() => {
    logMsgs = [];
    originalLog = console.warn; // Monkey patch DOM.log.
    console.warn = (msg: any) => logMsgs.push(msg);
  });

  afterEach(() => {
    console.warn = originalLog;
  });

  it('reports unsafe URLs', () => {
    expect(_sanitizeUrl('javascript:evil()')).toBe('unsafe:javascript:evil()');
    expect(logMsgs.join('\n')).toMatch(/sanitizing unsafe URL value/);
  });

  describe('valid URLs', () => {
    const validUrls = [
      '',
      'http://abc',
      'HTTP://abc',
      'https://abc',
      'HTTPS://abc',
      'ftp://abc',
      'FTP://abc',
      'mailto:me@example.com',
      'MAILTO:me@example.com',
      'tel:123-123-1234',
      'TEL:123-123-1234',
      '#anchor',
      '/page1.md',
      'http://JavaScript/my.js',
      'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/', // Truncated.
      'data:video/webm;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/',
      'data:audio/opus;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/',
      'unknown-scheme:abc',
    ];
    for (const url of validUrls) {
      it(`valid ${url}`, () => expect(_sanitizeUrl(url)).toEqual(url));
    }
  });

  describe('invalid URLs', () => {
    const invalidUrls = [
      'javascript:evil()',
      'JavaScript:abc',
      ' javascript:abc',
      ' \n Java\n Script:abc',
      '&#106;&#97;&#118;&#97;&#115;&#99;&#114;&#105;&#112;&#116;&#58;',
      '&#106&#97;&#118;&#97;&#115;&#99;&#114;&#105;&#112;&#116;&#58;',
      '&#106 &#97;&#118;&#97;&#115;&#99;&#114;&#105;&#112;&#116;&#58;',
      '&#0000106&#0000097&#0000118&#0000097&#0000115&#0000099&#0000114&#0000105&#0000112&#0000116&#0000058',
      '&#x6A&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A;',
      'jav&#x09;ascript:alert();',
      'jav\u0000ascript:alert();',
    ];
    for (const url of invalidUrls) {
      it(`valid ${url}`, () => expect(_sanitizeUrl(url)).toMatch(/^unsafe:/));
    }
  });
});
