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sanitizeSpec.js
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'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, comment;
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);
},
comment:function(comment_) {
comment = comment_;
}
};
});
it('should parse comments', function() {
htmlParser('<!--FOOBAR-->', handler);
expect(comment).toEqual('FOOBAR');
});
it('should throw an exception for invalid comments', function() {
var caught=false;
try {
htmlParser('<!-->', handler);
}
catch (ex) {
caught = true;
// expected an exception due to a bad parse
}
expect(caught).toBe(true);
});
it('double-dashes are not allowed in a comment', function() {
var caught=false;
try {
htmlParser('<!-- -- -->', handler);
}
catch (ex) {
caught = true;
// expected an exception due to a bad parse
}
expect(caught).toBe(true);
});
it('should parse basic format', function() {
htmlParser('<tag attr="value">text</tag>', 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('<tag attr="\nvalue\n">text</tag>', handler);
expect(start).toEqual({tag:'tag', attrs:{attr:'value'}, unary:false});
expect(text).toEqual('text');
});
it('should parse namespace', function() {
htmlParser('<ns:t-a-g ns:a-t-t-r="\nvalue\n">text</ns:t-a-g>', 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('<OPTION selected value="">abc</OPTION>', 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('hello<b class="1\'23" align=\'""\'>world</b>.').
toEqual('hello<b class="1\'23" align="""">world</b>.');
});
it('should remove script', function() {
expectHTML('a<SCRIPT>evil< / scrIpt >c.').toEqual('ac.');
});
it('should remove DOCTYPE header', function() {
expectHTML('<!DOCTYPE html>').toEqual('');
expectHTML('<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"\n"http://www.w3.org/TR/html4/strict.dtd">').toEqual('');
expectHTML('a<!DOCTYPE html>c.').toEqual('ac.');
expectHTML('a<!DocTyPe html>c.').toEqual('ac.');
});
it('should remove nested script', function() {
expectHTML('a< SCRIPT >A< SCRIPT >evil< / scrIpt >B< / scrIpt >c.').toEqual('ac.');
});
it('should remove attrs', function() {
expectHTML('a<div style="abc">b</div>c').toEqual('a<div>b</div>c');
});
it('should remove style', function() {
expectHTML('a<STyle>evil</stYle>c.').toEqual('ac.');
});
it('should remove script and style', function() {
expectHTML('a<STyle>evil<script></script></stYle>c.').toEqual('ac.');
});
it('should remove double nested script', function() {
expectHTML('a<SCRIPT>ev<script>evil</sCript>il</scrIpt>c.').toEqual('ac.');
});
it('should remove unknown names', function() {
expectHTML('a<xxx><B>b</B></xxx>c').toEqual('a<b>b</b>c');
});
it('should remove unsafe value', function() {
expectHTML('<a href="javascript:alert()">').toEqual('<a></a>');
});
it('should handle self closed elements', function() {
expectHTML('a<hr/>c').toEqual('a<hr/>c');
});
it('should handle namespace', function() {
expectHTML('a<my:hr/><my:div>b</my:div>c').toEqual('abc');
});
it('should handle entities', function() {
var everything = '<div rel="!@#$%^&*()_+-={}[]:";\'<>?,./`~ ħ">' +
'!@#$%^&*()_+-={}[]:";\'<>?,./`~ ħ</div>';
expectHTML(everything).toEqual(everything);
});
it('should handle improper html', function() {
expectHTML('< div rel="</div>" alt=abc dir=\'"\' >text< /div>').
toEqual('<div rel="</div>" alt="abc" dir=""">text</div>');
});
it('should handle improper html2', function() {
expectHTML('< div rel="</div>" / >').
toEqual('<div rel="</div>"/>');
});
it('should ignore back slash as escape', function() {
expectHTML('<img alt="xxx\\" title="><script>....">').
toEqual('<img alt="xxx\\" title="><script>...."/>');
});
it('should ignore object attributes', function() {
expectHTML('<a constructor="hola">:)</a>').
toEqual('<a>:)</a>');
expectHTML('<constructor constructor="hola">:)</constructor>').
toEqual('');
});
describe('htmlSanitizerWriter', function() {
if (angular.isUndefined(window.htmlSanitizeWriter)) return;
var writer, html;
beforeEach(function() {
html = '';
writer = htmlSanitizeWriter({push:function(text){html+=text;}});
});
it('should write basic HTML', function() {
writer.chars('before');
writer.start('div', {rel:'123'}, false);
writer.chars('in');
writer.end('div');
writer.chars('after');
expect(html).toEqual('before<div rel="123">in</div>after');
});
it('should escape text nodes', function() {
writer.chars('a<div>&</div>c');
expect(html).toEqual('a<div>&</div>c');
});
it('should escape IE script', function() {
writer.chars('&<>{}');
expect(html).toEqual('&<>{}');
});
it('should escape attributes', function() {
writer.start('div', {rel:'!@#$%^&*()_+-={}[]:";\'<>?,./`~ \n\0\r\u0127'});
expect(html).toEqual('<div rel="!@#$%^&*()_+-={}[]:";\'<>?,./`~ � ħ">');
});
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('<div>');
});
describe('explicitly disallow', function() {
it('should not allow attributes', function() {
writer.start('div', {id:'a', name:'a', style:'a'});
expect(html).toEqual('<div>');
});
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:[email protected]')).toBeTruthy();
expect(isUri('MAILTO:[email protected]')).toBeTruthy();
expect(isUri('tel:123-123-1234')).toBeTruthy();
expect(isUri('TEL:123-123-1234')).toBeTruthy();
expect(isUri('#anchor')).toBeTruthy();
expect(isUri('/anchor')).toBeTruthy();
});
it('should not be URI', 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();
});
});
});
});