'use strict';
describe('HTML', function() {
  var expectHTML;
  beforeEach(module('ngSanitize'));
  beforeEach(inject(function($sanitize) {
    expectHTML = function(html){
      return expect($sanitize(html));
    };
  }));
  describe('htmlParser', function() {
    if (angular.isUndefined(window.htmlParser)) return;
    var handler, start, text;
    beforeEach(function() {
      handler = {
          start: function(tag, attrs, unary){
            start = {
                tag: tag,
                attrs: attrs,
                unary: unary
            };
            // Since different browsers handle newlines differently we trim
            // so that it is easier to write tests.
            angular.forEach(attrs, function(value, key) {
              attrs[key] = value.replace(/^\s*/, '').replace(/\s*$/, '')
            });
          },
          chars: function(text_){
            text = text_;
          },
          end:function(tag) {
            expect(tag).toEqual(start.tag);
          }
      };
    });
    it('should parse basic format', function() {
      htmlParser('text', handler);
      expect(start).toEqual({tag:'tag', attrs:{attr:'value'}, unary:false});
      expect(text).toEqual('text');
    });
    it('should parse newlines in tags', function() {
      htmlParser('<\ntag\n attr="value"\n>text<\n/\ntag\n>', handler);
      expect(start).toEqual({tag:'tag', attrs:{attr:'value'}, unary:false});
      expect(text).toEqual('text');
    });
    it('should parse newlines in attributes', function() {
      htmlParser('text', handler);
      expect(start).toEqual({tag:'tag', attrs:{attr:'value'}, unary:false});
      expect(text).toEqual('text');
    });
    it('should parse namespace', function() {
      htmlParser('text', handler);
      expect(start).toEqual({tag:'ns:t-a-g', attrs:{'ns:a-t-t-r':'value'}, unary:false});
      expect(text).toEqual('text');
    });
    it('should parse empty value attribute of node', function() {
      htmlParser('', handler);
      expect(start).toEqual({tag:'option', attrs:{selected:'', value:''}, unary:false});
      expect(text).toEqual('abc');
    });
  });
  // THESE TESTS ARE EXECUTED WITH COMPILED ANGULAR
  it('should echo html', function() {
    expectHTML('helloworld.').
       toEqual('helloworld.');
  });
  it('should remove script', function() {
    expectHTML('ac.').toEqual('ac.');
  });
  it('should remove double nested script', function() {
    expectHTML('ailc.').toEqual('ac.');
  });
  it('should remove unknown  names', function() {
    expectHTML('abc').toEqual('abc');
  });
  it('should remove unsafe value', function() {
    expectHTML('').toEqual('');
  });
  it('should handle self closed elements', function() {
    expectHTML('a
c').toEqual('a
c');
  });
  it('should handle namespace', function() {
    expectHTML('abc').toEqual('abc');
  });
  it('should handle entities', function() {
    var everything = '' +
    '!@#$%^&*()_+-={}[]:";\'<>?,./`~ ħ
';
    expectHTML(everything).toEqual(everything);
  });
  it('should handle improper html', function() {
    expectHTML('< div rel="" alt=abc dir=\'"\' >text< /div>').
      toEqual('text
');
  });
  it('should handle improper html2', function() {
    expectHTML('< div rel="" / >').
      toEqual('');
  });
  it('should ignore back slash as escape', function() {
    expectHTML('![><script>.... xxx\\]() ').
      toEqual('
').
      toEqual('![><script>.... xxx\\]() ');
  });
  it('should ignore object attributes', function() {
    expectHTML(':)').
      toEqual(':)');
    expectHTML(':)').
      toEqual('');
  });
  describe('htmlSanitizerWriter', function() {
    if (angular.isUndefined(window.htmlSanitizeWriter)) return;
    var writer, html;
    beforeEach(function() {
      html = '';
      writer = htmlSanitizeWriter({push:function(text){html+=text;}});
    });
    it('should write basic HTML', function() {
      writer.chars('before');
      writer.start('div', {rel:'123'}, false);
      writer.chars('in');
      writer.end('div');
      writer.chars('after');
      expect(html).toEqual('before
');
  });
  it('should ignore object attributes', function() {
    expectHTML(':)').
      toEqual(':)');
    expectHTML(':)').
      toEqual('');
  });
  describe('htmlSanitizerWriter', function() {
    if (angular.isUndefined(window.htmlSanitizeWriter)) return;
    var writer, html;
    beforeEach(function() {
      html = '';
      writer = htmlSanitizeWriter({push:function(text){html+=text;}});
    });
    it('should write basic HTML', function() {
      writer.chars('before');
      writer.start('div', {rel:'123'}, false);
      writer.chars('in');
      writer.end('div');
      writer.chars('after');
      expect(html).toEqual('beforein
after');
    });
    it('should escape text nodes', function() {
      writer.chars('a&
c');
      expect(html).toEqual('a<div>&</div>c');
    });
    it('should escape IE script', function() {
      writer.chars('&<>{}');
      expect(html).toEqual('&<>{}');
    });
    it('should escape attributes', function() {
      writer.start('div', {rel:'!@#$%^&*()_+-={}[]:";\'<>?,./`~ \n\0\r\u0127'});
      expect(html).toEqual('');
    });
    it('should ignore missformed elements', function() {
      writer.start('d>i&v', {});
      expect(html).toEqual('');
    });
    it('should ignore unknown attributes', function() {
      writer.start('div', {unknown:""});
      expect(html).toEqual('
');
    });
    describe('explicitly dissallow', function() {
      it('should not allow attributes', function() {
        writer.start('div', {id:'a', name:'a', style:'a'});
        expect(html).toEqual('
');
      });
      it('should not allow tags', function() {
        function tag(name) {
          writer.start(name, {});
          writer.end(name);
        }
        tag('frameset');
        tag('frame');
        tag('form');
        tag('param');
        tag('object');
        tag('embed');
        tag('textarea');
        tag('input');
        tag('button');
        tag('option');
        tag('select');
        tag('script');
        tag('style');
        tag('link');
        tag('base');
        tag('basefont');
        expect(html).toEqual('');
      });
    });
    describe('isUri', function() {
      function isUri(value) {
        return value.match(URI_REGEXP);
      }
      it('should be URI', function() {
        expect(isUri('http://abc')).toBeTruthy();
        expect(isUri('HTTP://abc')).toBeTruthy();
        expect(isUri('https://abc')).toBeTruthy();
        expect(isUri('HTTPS://abc')).toBeTruthy();
        expect(isUri('ftp://abc')).toBeTruthy();
        expect(isUri('FTP://abc')).toBeTruthy();
        expect(isUri('mailto:me@example.com')).toBeTruthy();
        expect(isUri('MAILTO:me@example.com')).toBeTruthy();
        expect(isUri('#anchor')).toBeTruthy();
      });
      it('should not be UIR', function() {
        expect(isUri('')).toBeFalsy();
        expect(isUri('javascript:alert')).toBeFalsy();
      });
    });
    describe('javascript URL attribute', function() {
      beforeEach(function() {
        this.addMatchers({
          toBeValidUrl: function() {
            return URI_REGEXP.exec(this.actual);
          }
        });
      });
      it('should ignore javascript:', function() {
        expect('JavaScript:abc').not.toBeValidUrl();
        expect(' \n Java\n Script:abc').not.toBeValidUrl();
        expect('http://JavaScript/my.js').toBeValidUrl();
      });
      it('should ignore dec encoded javascript:', function() {
        expect('javascript:').not.toBeValidUrl();
        expect('javascript:').not.toBeValidUrl();
        expect('j avascript:').not.toBeValidUrl();
      });
      it('should ignore decimal with leading 0 encodede javascript:', function() {
        expect('javascript:').not.toBeValidUrl();
        expect('j avascript:').not.toBeValidUrl();
        expect('j avascript:').not.toBeValidUrl();
      });
      it('should ignore hex encoded javascript:', function() {
        expect('javascript:').not.toBeValidUrl();
        expect('javascript:').not.toBeValidUrl();
        expect('j avascript:').not.toBeValidUrl();
      });
      it('should ignore hex encoded whitespace javascript:', function() {
        expect('jav	ascript:alert("A");').not.toBeValidUrl();
        expect('jav
ascript:alert("B");').not.toBeValidUrl();
        expect('jav
 ascript:alert("C");').not.toBeValidUrl();
        expect('jav\u0000ascript:alert("D");').not.toBeValidUrl();
        expect('java\u0000\u0000script:alert("D");').not.toBeValidUrl();
        expect('  java\u0000\u0000script:alert("D");').not.toBeValidUrl();
      });
    });
  });
});