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1749 lines
68 KiB
1749 lines
68 KiB
6 years ago
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/**
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* @license AngularJS v1.7.8
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* (c) 2010-2018 Google, Inc. http://angularjs.org
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* License: MIT
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*/
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(function(window, angular) {'use strict';
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Any commits to this file should be reviewed with security in mind. *
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* Changes to this file can potentially create security vulnerabilities. *
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* An approval from 2 Core members with history of modifying *
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* this file is required. *
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* *
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* Does the change somehow allow for arbitrary javascript to be executed? *
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* Or allows for someone to change the prototype of built-in objects? *
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* Or gives undesired access to variables likes document or window? *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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var $sanitizeMinErr = angular.$$minErr('$sanitize');
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var bind;
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var extend;
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var forEach;
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var isArray;
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var isDefined;
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var lowercase;
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var noop;
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var nodeContains;
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var htmlParser;
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var htmlSanitizeWriter;
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/**
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* @ngdoc module
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* @name ngSanitize
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* @description
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*
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* The `ngSanitize` module provides functionality to sanitize HTML.
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*
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* See {@link ngSanitize.$sanitize `$sanitize`} for usage.
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*/
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/**
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* @ngdoc service
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* @name $sanitize
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* @kind function
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*
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* @description
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* Sanitizes an html string by stripping all potentially dangerous tokens.
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*
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* The input is sanitized by parsing the HTML into tokens. All safe tokens (from a whitelist) are
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* then serialized back to a properly escaped HTML string. This means that no unsafe input can make
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* it into the returned string.
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*
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* The whitelist for URL sanitization of attribute values is configured using the functions
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* `aHrefSanitizationWhitelist` and `imgSrcSanitizationWhitelist` of {@link $compileProvider}.
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*
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* The input may also contain SVG markup if this is enabled via {@link $sanitizeProvider}.
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*
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* @param {string} html HTML input.
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* @returns {string} Sanitized HTML.
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*
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* @example
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<example module="sanitizeExample" deps="angular-sanitize.js" name="sanitize-service">
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<file name="index.html">
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<script>
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angular.module('sanitizeExample', ['ngSanitize'])
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.controller('ExampleController', ['$scope', '$sce', function($scope, $sce) {
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$scope.snippet =
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'<p style="color:blue">an html\n' +
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'<em onmouseover="this.textContent=\'PWN3D!\'">click here</em>\n' +
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'snippet</p>';
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$scope.deliberatelyTrustDangerousSnippet = function() {
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return $sce.trustAsHtml($scope.snippet);
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};
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}]);
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</script>
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<div ng-controller="ExampleController">
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Snippet: <textarea ng-model="snippet" cols="60" rows="3"></textarea>
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<table>
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<tr>
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<td>Directive</td>
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<td>How</td>
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<td>Source</td>
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<td>Rendered</td>
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</tr>
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<tr id="bind-html-with-sanitize">
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<td>ng-bind-html</td>
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<td>Automatically uses $sanitize</td>
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<td><pre><div ng-bind-html="snippet"><br/></div></pre></td>
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<td><div ng-bind-html="snippet"></div></td>
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</tr>
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<tr id="bind-html-with-trust">
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<td>ng-bind-html</td>
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<td>Bypass $sanitize by explicitly trusting the dangerous value</td>
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<td>
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<pre><div ng-bind-html="deliberatelyTrustDangerousSnippet()">
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</div></pre>
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</td>
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<td><div ng-bind-html="deliberatelyTrustDangerousSnippet()"></div></td>
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</tr>
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<tr id="bind-default">
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<td>ng-bind</td>
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<td>Automatically escapes</td>
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<td><pre><div ng-bind="snippet"><br/></div></pre></td>
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<td><div ng-bind="snippet"></div></td>
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</tr>
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</table>
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</div>
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</file>
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<file name="protractor.js" type="protractor">
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it('should sanitize the html snippet by default', function() {
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expect(element(by.css('#bind-html-with-sanitize div')).getAttribute('innerHTML')).
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toBe('<p>an html\n<em>click here</em>\nsnippet</p>');
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});
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it('should inline raw snippet if bound to a trusted value', function() {
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expect(element(by.css('#bind-html-with-trust div')).getAttribute('innerHTML')).
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toBe("<p style=\"color:blue\">an html\n" +
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"<em onmouseover=\"this.textContent='PWN3D!'\">click here</em>\n" +
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"snippet</p>");
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});
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it('should escape snippet without any filter', function() {
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expect(element(by.css('#bind-default div')).getAttribute('innerHTML')).
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toBe("<p style=\"color:blue\">an html\n" +
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"<em onmouseover=\"this.textContent='PWN3D!'\">click here</em>\n" +
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"snippet</p>");
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});
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it('should update', function() {
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element(by.model('snippet')).clear();
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element(by.model('snippet')).sendKeys('new <b onclick="alert(1)">text</b>');
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expect(element(by.css('#bind-html-with-sanitize div')).getAttribute('innerHTML')).
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toBe('new <b>text</b>');
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expect(element(by.css('#bind-html-with-trust div')).getAttribute('innerHTML')).toBe(
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'new <b onclick="alert(1)">text</b>');
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expect(element(by.css('#bind-default div')).getAttribute('innerHTML')).toBe(
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"new <b onclick=\"alert(1)\">text</b>");
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});
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</file>
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</example>
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*/
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/**
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* @ngdoc provider
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* @name $sanitizeProvider
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* @this
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*
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* @description
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* Creates and configures {@link $sanitize} instance.
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*/
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function $SanitizeProvider() {
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var hasBeenInstantiated = false;
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var svgEnabled = false;
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this.$get = ['$$sanitizeUri', function($$sanitizeUri) {
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hasBeenInstantiated = true;
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if (svgEnabled) {
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extend(validElements, svgElements);
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}
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return function(html) {
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var buf = [];
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htmlParser(html, htmlSanitizeWriter(buf, function(uri, isImage) {
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return !/^unsafe:/.test($$sanitizeUri(uri, isImage));
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}));
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return buf.join('');
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};
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}];
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/**
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* @ngdoc method
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* @name $sanitizeProvider#enableSvg
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* @kind function
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*
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* @description
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* Enables a subset of svg to be supported by the sanitizer.
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*
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* <div class="alert alert-warning">
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* <p>By enabling this setting without taking other precautions, you might expose your
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* application to click-hijacking attacks. In these attacks, sanitized svg elements could be positioned
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* outside of the containing element and be rendered over other elements on the page (e.g. a login
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* link). Such behavior can then result in phishing incidents.</p>
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*
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* <p>To protect against these, explicitly setup `overflow: hidden` css rule for all potential svg
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* tags within the sanitized content:</p>
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*
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* <br>
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*
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* <pre><code>
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* .rootOfTheIncludedContent svg {
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* overflow: hidden !important;
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* }
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* </code></pre>
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* </div>
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*
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* @param {boolean=} flag Enable or disable SVG support in the sanitizer.
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* @returns {boolean|$sanitizeProvider} Returns the currently configured value if called
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* without an argument or self for chaining otherwise.
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*/
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this.enableSvg = function(enableSvg) {
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if (isDefined(enableSvg)) {
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svgEnabled = enableSvg;
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return this;
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} else {
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return svgEnabled;
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}
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};
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/**
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* @ngdoc method
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* @name $sanitizeProvider#addValidElements
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* @kind function
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*
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* @description
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* Extends the built-in lists of valid HTML/SVG elements, i.e. elements that are considered safe
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* and are not stripped off during sanitization. You can extend the following lists of elements:
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*
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* - `htmlElements`: A list of elements (tag names) to extend the current list of safe HTML
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* elements. HTML elements considered safe will not be removed during sanitization. All other
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* elements will be stripped off.
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*
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* - `htmlVoidElements`: This is similar to `htmlElements`, but marks the elements as
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* "void elements" (similar to HTML
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* [void elements](https://rawgit.com/w3c/html/html5.1-2/single-page.html#void-elements)). These
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* elements have no end tag and cannot have content.
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*
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* - `svgElements`: This is similar to `htmlElements`, but for SVG elements. This list is only
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* taken into account if SVG is {@link ngSanitize.$sanitizeProvider#enableSvg enabled} for
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* `$sanitize`.
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*
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* <div class="alert alert-info">
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* This method must be called during the {@link angular.Module#config config} phase. Once the
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* `$sanitize` service has been instantiated, this method has no effect.
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* </div>
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*
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* <div class="alert alert-warning">
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* Keep in mind that extending the built-in lists of elements may expose your app to XSS or
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* other vulnerabilities. Be very mindful of the elements you add.
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* </div>
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*
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* @param {Array<String>|Object} elements - A list of valid HTML elements or an object with one or
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* more of the following properties:
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* - **htmlElements** - `{Array<String>}` - A list of elements to extend the current list of
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* HTML elements.
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* - **htmlVoidElements** - `{Array<String>}` - A list of elements to extend the current list of
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* void HTML elements; i.e. elements that do not have an end tag.
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* - **svgElements** - `{Array<String>}` - A list of elements to extend the current list of SVG
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* elements. The list of SVG elements is only taken into account if SVG is
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* {@link ngSanitize.$sanitizeProvider#enableSvg enabled} for `$sanitize`.
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*
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* Passing an array (`[...]`) is equivalent to passing `{htmlElements: [...]}`.
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*
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* @return {$sanitizeProvider} Returns self for chaining.
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*/
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this.addValidElements = function(elements) {
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if (!hasBeenInstantiated) {
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if (isArray(elements)) {
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elements = {htmlElements: elements};
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}
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addElementsTo(svgElements, elements.svgElements);
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addElementsTo(voidElements, elements.htmlVoidElements);
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addElementsTo(validElements, elements.htmlVoidElements);
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addElementsTo(validElements, elements.htmlElements);
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}
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return this;
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};
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/**
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* @ngdoc method
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* @name $sanitizeProvider#addValidAttrs
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* @kind function
|
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|
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*
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* @description
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* Extends the built-in list of valid attributes, i.e. attributes that are considered safe and are
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* not stripped off during sanitization.
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*
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* **Note**:
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* The new attributes will not be treated as URI attributes, which means their values will not be
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* sanitized as URIs using `$compileProvider`'s
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* {@link ng.$compileProvider#aHrefSanitizationWhitelist aHrefSanitizationWhitelist} and
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* {@link ng.$compileProvider#imgSrcSanitizationWhitelist imgSrcSanitizationWhitelist}.
|
||
|
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*
|
||
|
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* <div class="alert alert-info">
|
||
|
|
* This method must be called during the {@link angular.Module#config config} phase. Once the
|
||
|
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* `$sanitize` service has been instantiated, this method has no effect.
|
||
|
|
* </div>
|
||
|
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*
|
||
|
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* <div class="alert alert-warning">
|
||
|
|
* Keep in mind that extending the built-in list of attributes may expose your app to XSS or
|
||
|
|
* other vulnerabilities. Be very mindful of the attributes you add.
|
||
|
|
* </div>
|
||
|
|
*
|
||
|
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* @param {Array<String>} attrs - A list of valid attributes.
|
||
|
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*
|
||
|
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* @returns {$sanitizeProvider} Returns self for chaining.
|
||
|
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*/
|
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this.addValidAttrs = function(attrs) {
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if (!hasBeenInstantiated) {
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extend(validAttrs, arrayToMap(attrs, true));
|
||
|
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}
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||
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return this;
|
||
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};
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||
|
|
|
||
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//////////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
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// Private stuff
|
||
|
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//////////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
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bind = angular.bind;
|
||
|
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extend = angular.extend;
|
||
|
|
forEach = angular.forEach;
|
||
|
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isArray = angular.isArray;
|
||
|
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isDefined = angular.isDefined;
|
||
|
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lowercase = angular.$$lowercase;
|
||
|
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noop = angular.noop;
|
||
|
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|
||
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htmlParser = htmlParserImpl;
|
||
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htmlSanitizeWriter = htmlSanitizeWriterImpl;
|
||
|
|
|
||
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nodeContains = window.Node.prototype.contains || /** @this */ function(arg) {
|
||
|
|
// eslint-disable-next-line no-bitwise
|
||
|
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return !!(this.compareDocumentPosition(arg) & 16);
|
||
|
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};
|
||
|
|
|
||
|
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// Regular Expressions for parsing tags and attributes
|
||
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var SURROGATE_PAIR_REGEXP = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g,
|
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|
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// Match everything outside of normal chars and " (quote character)
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||
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NON_ALPHANUMERIC_REGEXP = /([^#-~ |!])/g;
|
||
|
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|
||
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|
||
|
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// Good source of info about elements and attributes
|
||
|
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// http://dev.w3.org/html5/spec/Overview.html#semantics
|
||
|
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// http://simon.html5.org/html-elements
|
||
|
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|
||
|
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// Safe Void Elements - HTML5
|
||
|
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// http://dev.w3.org/html5/spec/Overview.html#void-elements
|
||
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var voidElements = stringToMap('area,br,col,hr,img,wbr');
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||
|
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|
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// Elements that you can, intentionally, leave open (and which close themselves)
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||
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// http://dev.w3.org/html5/spec/Overview.html#optional-tags
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||
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var optionalEndTagBlockElements = stringToMap('colgroup,dd,dt,li,p,tbody,td,tfoot,th,thead,tr'),
|
||
|
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optionalEndTagInlineElements = stringToMap('rp,rt'),
|
||
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optionalEndTagElements = extend({},
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||
|
|
optionalEndTagInlineElements,
|
||
|
|
optionalEndTagBlockElements);
|
||
|
|
|
||
|
|
// Safe Block Elements - HTML5
|
||
|
|
var blockElements = extend({}, optionalEndTagBlockElements, stringToMap('address,article,' +
|
||
|
|
'aside,blockquote,caption,center,del,dir,div,dl,figure,figcaption,footer,h1,h2,h3,h4,h5,' +
|
||
|
|
'h6,header,hgroup,hr,ins,map,menu,nav,ol,pre,section,table,ul'));
|
||
|
|
|
||
|
|
// Inline Elements - HTML5
|
||
|
|
var inlineElements = extend({}, optionalEndTagInlineElements, stringToMap('a,abbr,acronym,b,' +
|
||
|
|
'bdi,bdo,big,br,cite,code,del,dfn,em,font,i,img,ins,kbd,label,map,mark,q,ruby,rp,rt,s,' +
|
||
|
|
'samp,small,span,strike,strong,sub,sup,time,tt,u,var'));
|
||
|
|
|
||
|
|
// SVG Elements
|
||
|
|
// https://wiki.whatwg.org/wiki/Sanitization_rules#svg_Elements
|
||
|
|
// Note: the elements animate,animateColor,animateMotion,animateTransform,set are intentionally omitted.
|
||
|
|
// They can potentially allow for arbitrary javascript to be executed. See #11290
|
||
|
|
var svgElements = stringToMap('circle,defs,desc,ellipse,font-face,font-face-name,font-face-src,g,glyph,' +
|
||
|
|
'hkern,image,linearGradient,line,marker,metadata,missing-glyph,mpath,path,polygon,polyline,' +
|
||
|
|
'radialGradient,rect,stop,svg,switch,text,title,tspan');
|
||
|
|
|
||
|
|
// Blocked Elements (will be stripped)
|
||
|
|
var blockedElements = stringToMap('script,style');
|
||
|
|
|
||
|
|
var validElements = extend({},
|
||
|
|
voidElements,
|
||
|
|
blockElements,
|
||
|
|
inlineElements,
|
||
|
|
optionalEndTagElements);
|
||
|
|
|
||
|
|
//Attributes that have href and hence need to be sanitized
|
||
|
|
var uriAttrs = stringToMap('background,cite,href,longdesc,src,xlink:href,xml:base');
|
||
|
|
|
||
|
|
var htmlAttrs = stringToMap('abbr,align,alt,axis,bgcolor,border,cellpadding,cellspacing,class,clear,' +
|
||
|
|
'color,cols,colspan,compact,coords,dir,face,headers,height,hreflang,hspace,' +
|
||
|
|
'ismap,lang,language,nohref,nowrap,rel,rev,rows,rowspan,rules,' +
|
||
|
|
'scope,scrolling,shape,size,span,start,summary,tabindex,target,title,type,' +
|
||
|
|
'valign,value,vspace,width');
|
||
|
|
|
||
|
|
// SVG attributes (without "id" and "name" attributes)
|
||
|
|
// https://wiki.whatwg.org/wiki/Sanitization_rules#svg_Attributes
|
||
|
|
var svgAttrs = stringToMap('accent-height,accumulate,additive,alphabetic,arabic-form,ascent,' +
|
||
|
|
'baseProfile,bbox,begin,by,calcMode,cap-height,class,color,color-rendering,content,' +
|
||
|
|
'cx,cy,d,dx,dy,descent,display,dur,end,fill,fill-rule,font-family,font-size,font-stretch,' +
|
||
|
|
'font-style,font-variant,font-weight,from,fx,fy,g1,g2,glyph-name,gradientUnits,hanging,' +
|
||
|
|
'height,horiz-adv-x,horiz-origin-x,ideographic,k,keyPoints,keySplines,keyTimes,lang,' +
|
||
|
|
'marker-end,marker-mid,marker-start,markerHeight,markerUnits,markerWidth,mathematical,' +
|
||
|
|
'max,min,offset,opacity,orient,origin,overline-position,overline-thickness,panose-1,' +
|
||
|
|
'path,pathLength,points,preserveAspectRatio,r,refX,refY,repeatCount,repeatDur,' +
|
||
|
|
'requiredExtensions,requiredFeatures,restart,rotate,rx,ry,slope,stemh,stemv,stop-color,' +
|
||
|
|
'stop-opacity,strikethrough-position,strikethrough-thickness,stroke,stroke-dasharray,' +
|
||
|
|
'stroke-dashoffset,stroke-linecap,stroke-linejoin,stroke-miterlimit,stroke-opacity,' +
|
||
|
|
'stroke-width,systemLanguage,target,text-anchor,to,transform,type,u1,u2,underline-position,' +
|
||
|
|
'underline-thickness,unicode,unicode-range,units-per-em,values,version,viewBox,visibility,' +
|
||
|
|
'width,widths,x,x-height,x1,x2,xlink:actuate,xlink:arcrole,xlink:role,xlink:show,xlink:title,' +
|
||
|
|
'xlink:type,xml:base,xml:lang,xml:space,xmlns,xmlns:xlink,y,y1,y2,zoomAndPan', true);
|
||
|
|
|
||
|
|
var validAttrs = extend({},
|
||
|
|
uriAttrs,
|
||
|
|
svgAttrs,
|
||
|
|
htmlAttrs);
|
||
|
|
|
||
|
|
function stringToMap(str, lowercaseKeys) {
|
||
|
|
return arrayToMap(str.split(','), lowercaseKeys);
|
||
|
|
}
|
||
|
|
|
||
|
|
function arrayToMap(items, lowercaseKeys) {
|
||
|
|
var obj = {}, i;
|
||
|
|
for (i = 0; i < items.length; i++) {
|
||
|
|
obj[lowercaseKeys ? lowercase(items[i]) : items[i]] = true;
|
||
|
|
}
|
||
|
|
return obj;
|
||
|
|
}
|
||
|
|
|
||
|
|
function addElementsTo(elementsMap, newElements) {
|
||
|
|
if (newElements && newElements.length) {
|
||
|
|
extend(elementsMap, arrayToMap(newElements));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create an inert document that contains the dirty HTML that needs sanitizing
|
||
|
|
* Depending upon browser support we use one of three strategies for doing this.
|
||
|
|
* Support: Safari 10.x -> XHR strategy
|
||
|
|
* Support: Firefox -> DomParser strategy
|
||
|
|
*/
|
||
|
|
var getInertBodyElement /* function(html: string): HTMLBodyElement */ = (function(window, document) {
|
||
|
|
var inertDocument;
|
||
|
|
if (document && document.implementation) {
|
||
|
|
inertDocument = document.implementation.createHTMLDocument('inert');
|
||
|
|
} else {
|
||
|
|
throw $sanitizeMinErr('noinert', 'Can\'t create an inert html document');
|
||
|
|
}
|
||
|
|
var inertBodyElement = (inertDocument.documentElement || inertDocument.getDocumentElement()).querySelector('body');
|
||
|
|
|
||
|
|
// Check for the Safari 10.1 bug - which allows JS to run inside the SVG G element
|
||
|
|
inertBodyElement.innerHTML = '<svg><g onload="this.parentNode.remove()"></g></svg>';
|
||
|
|
if (!inertBodyElement.querySelector('svg')) {
|
||
|
|
return getInertBodyElement_XHR;
|
||
|
|
} else {
|
||
|
|
// Check for the Firefox bug - which prevents the inner img JS from being sanitized
|
||
|
|
inertBodyElement.innerHTML = '<svg><p><style><img src="</style><img src=x onerror=alert(1)//">';
|
||
|
|
if (inertBodyElement.querySelector('svg img')) {
|
||
|
|
return getInertBodyElement_DOMParser;
|
||
|
|
} else {
|
||
|
|
return getInertBodyElement_InertDocument;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function getInertBodyElement_XHR(html) {
|
||
|
|
// We add this dummy element to ensure that the rest of the content is parsed as expected
|
||
|
|
// e.g. leading whitespace is maintained and tags like `<meta>` do not get hoisted to the `<head>` tag.
|
||
|
|
html = '<remove></remove>' + html;
|
||
|
|
try {
|
||
|
|
html = encodeURI(html);
|
||
|
|
} catch (e) {
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
var xhr = new window.XMLHttpRequest();
|
||
|
|
xhr.responseType = 'document';
|
||
|
|
xhr.open('GET', 'data:text/html;charset=utf-8,' + html, false);
|
||
|
|
xhr.send(null);
|
||
|
|
var body = xhr.response.body;
|
||
|
|
body.firstChild.remove();
|
||
|
|
return body;
|
||
|
|
}
|
||
|
|
|
||
|
|
function getInertBodyElement_DOMParser(html) {
|
||
|
|
// We add this dummy element to ensure that the rest of the content is parsed as expected
|
||
|
|
// e.g. leading whitespace is maintained and tags like `<meta>` do not get hoisted to the `<head>` tag.
|
||
|
|
html = '<remove></remove>' + html;
|
||
|
|
try {
|
||
|
|
var body = new window.DOMParser().parseFromString(html, 'text/html').body;
|
||
|
|
body.firstChild.remove();
|
||
|
|
return body;
|
||
|
|
} catch (e) {
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function getInertBodyElement_InertDocument(html) {
|
||
|
|
inertBodyElement.innerHTML = html;
|
||
|
|
|
||
|
|
// Support: IE 9-11 only
|
||
|
|
// strip custom-namespaced attributes on IE<=11
|
||
|
|
if (document.documentMode) {
|
||
|
|
stripCustomNsAttrs(inertBodyElement);
|
||
|
|
}
|
||
|
|
|
||
|
|
return inertBodyElement;
|
||
|
|
}
|
||
|
|
})(window, window.document);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @example
|
||
|
|
* htmlParser(htmlString, {
|
||
|
|
* start: function(tag, attrs) {},
|
||
|
|
* end: function(tag) {},
|
||
|
|
* chars: function(text) {},
|
||
|
|
* comment: function(text) {}
|
||
|
|
* });
|
||
|
|
*
|
||
|
|
* @param {string} html string
|
||
|
|
* @param {object} handler
|
||
|
|
*/
|
||
|
|
function htmlParserImpl(html, handler) {
|
||
|
|
if (html === null || html === undefined) {
|
||
|
|
html = '';
|
||
|
|
} else if (typeof html !== 'string') {
|
||
|
|
html = '' + html;
|
||
|
|
}
|
||
|
|
|
||
|
|
var inertBodyElement = getInertBodyElement(html);
|
||
|
|
if (!inertBodyElement) return '';
|
||
|
|
|
||
|
|
//mXSS protection
|
||
|
|
var mXSSAttempts = 5;
|
||
|
|
do {
|
||
|
|
if (mXSSAttempts === 0) {
|
||
|
|
throw $sanitizeMinErr('uinput', 'Failed to sanitize html because the input is unstable');
|
||
|
|
}
|
||
|
|
mXSSAttempts--;
|
||
|
|
|
||
|
|
// trigger mXSS if it is going to happen by reading and writing the innerHTML
|
||
|
|
html = inertBodyElement.innerHTML;
|
||
|
|
inertBodyElement = getInertBodyElement(html);
|
||
|
|
} while (html !== inertBodyElement.innerHTML);
|
||
|
|
|
||
|
|
var node = inertBodyElement.firstChild;
|
||
|
|
while (node) {
|
||
|
|
switch (node.nodeType) {
|
||
|
|
case 1: // ELEMENT_NODE
|
||
|
|
handler.start(node.nodeName.toLowerCase(), attrToMap(node.attributes));
|
||
|
|
break;
|
||
|
|
case 3: // TEXT NODE
|
||
|
|
handler.chars(node.textContent);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
var nextNode;
|
||
|
|
if (!(nextNode = node.firstChild)) {
|
||
|
|
if (node.nodeType === 1) {
|
||
|
|
handler.end(node.nodeName.toLowerCase());
|
||
|
|
}
|
||
|
|
nextNode = getNonDescendant('nextSibling', node);
|
||
|
|
if (!nextNode) {
|
||
|
|
while (nextNode == null) {
|
||
|
|
node = getNonDescendant('parentNode', node);
|
||
|
|
if (node === inertBodyElement) break;
|
||
|
|
nextNode = getNonDescendant('nextSibling', node);
|
||
|
|
if (node.nodeType === 1) {
|
||
|
|
handler.end(node.nodeName.toLowerCase());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
node = nextNode;
|
||
|
|
}
|
||
|
|
|
||
|
|
while ((node = inertBodyElement.firstChild)) {
|
||
|
|
inertBodyElement.removeChild(node);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function attrToMap(attrs) {
|
||
|
|
var map = {};
|
||
|
|
for (var i = 0, ii = attrs.length; i < ii; i++) {
|
||
|
|
var attr = attrs[i];
|
||
|
|
map[attr.name] = attr.value;
|
||
|
|
}
|
||
|
|
return map;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Escapes all potentially dangerous characters, so that the
|
||
|
|
* resulting string can be safely inserted into attribute or
|
||
|
|
* element text.
|
||
|
|
* @param value
|
||
|
|
* @returns {string} escaped text
|
||
|
|
*/
|
||
|
|
function encodeEntities(value) {
|
||
|
|
return value.
|
||
|
|
replace(/&/g, '&').
|
||
|
|
replace(SURROGATE_PAIR_REGEXP, function(value) {
|
||
|
|
var hi = value.charCodeAt(0);
|
||
|
|
var low = value.charCodeAt(1);
|
||
|
|
return '&#' + (((hi - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000) + ';';
|
||
|
|
}).
|
||
|
|
replace(NON_ALPHANUMERIC_REGEXP, function(value) {
|
||
|
|
return '&#' + value.charCodeAt(0) + ';';
|
||
|
|
}).
|
||
|
|
replace(/</g, '<').
|
||
|
|
replace(/>/g, '>');
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* create an HTML/XML writer which writes to buffer
|
||
|
|
* @param {Array} buf use buf.join('') to get out sanitized html string
|
||
|
|
* @returns {object} in the form of {
|
||
|
|
* start: function(tag, attrs) {},
|
||
|
|
* end: function(tag) {},
|
||
|
|
* chars: function(text) {},
|
||
|
|
* comment: function(text) {}
|
||
|
|
* }
|
||
|
|
*/
|
||
|
|
function htmlSanitizeWriterImpl(buf, uriValidator) {
|
||
|
|
var ignoreCurrentElement = false;
|
||
|
|
var out = bind(buf, buf.push);
|
||
|
|
return {
|
||
|
|
start: function(tag, attrs) {
|
||
|
|
tag = lowercase(tag);
|
||
|
|
if (!ignoreCurrentElement && blockedElements[tag]) {
|
||
|
|
ignoreCurrentElement = tag;
|
||
|
|
}
|
||
|
|
if (!ignoreCurrentElement && validElements[tag] === true) {
|
||
|
|
out('<');
|
||
|
|
out(tag);
|
||
|
|
forEach(attrs, function(value, key) {
|
||
|
|
var lkey = lowercase(key);
|
||
|
|
var isImage = (tag === 'img' && lkey === 'src') || (lkey === 'background');
|
||
|
|
if (validAttrs[lkey] === true &&
|
||
|
|
(uriAttrs[lkey] !== true || uriValidator(value, isImage))) {
|
||
|
|
out(' ');
|
||
|
|
out(key);
|
||
|
|
out('="');
|
||
|
|
out(encodeEntities(value));
|
||
|
|
out('"');
|
||
|
|
}
|
||
|
|
});
|
||
|
|
out('>');
|
||
|
|
}
|
||
|
|
},
|
||
|
|
end: function(tag) {
|
||
|
|
tag = lowercase(tag);
|
||
|
|
if (!ignoreCurrentElement && validElements[tag] === true && voidElements[tag] !== true) {
|
||
|
|
out('</');
|
||
|
|
out(tag);
|
||
|
|
out('>');
|
||
|
|
}
|
||
|
|
// eslint-disable-next-line eqeqeq
|
||
|
|
if (tag == ignoreCurrentElement) {
|
||
|
|
ignoreCurrentElement = false;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
chars: function(chars) {
|
||
|
|
if (!ignoreCurrentElement) {
|
||
|
|
out(encodeEntities(chars));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* When IE9-11 comes across an unknown namespaced attribute e.g. 'xlink:foo' it adds 'xmlns:ns1' attribute to declare
|
||
|
|
* ns1 namespace and prefixes the attribute with 'ns1' (e.g. 'ns1:xlink:foo'). This is undesirable since we don't want
|
||
|
|
* to allow any of these custom attributes. This method strips them all.
|
||
|
|
*
|
||
|
|
* @param node Root element to process
|
||
|
|
*/
|
||
|
|
function stripCustomNsAttrs(node) {
|
||
|
|
while (node) {
|
||
|
|
if (node.nodeType === window.Node.ELEMENT_NODE) {
|
||
|
|
var attrs = node.attributes;
|
||
|
|
for (var i = 0, l = attrs.length; i < l; i++) {
|
||
|
|
var attrNode = attrs[i];
|
||
|
|
var attrName = attrNode.name.toLowerCase();
|
||
|
|
if (attrName === 'xmlns:ns1' || attrName.lastIndexOf('ns1:', 0) === 0) {
|
||
|
|
node.removeAttributeNode(attrNode);
|
||
|
|
i--;
|
||
|
|
l--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var nextNode = node.firstChild;
|
||
|
|
if (nextNode) {
|
||
|
|
stripCustomNsAttrs(nextNode);
|
||
|
|
}
|
||
|
|
|
||
|
|
node = getNonDescendant('nextSibling', node);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function getNonDescendant(propName, node) {
|
||
|
|
// An element is clobbered if its `propName` property points to one of its descendants
|
||
|
|
var nextNode = node[propName];
|
||
|
|
if (nextNode && nodeContains.call(node, nextNode)) {
|
||
|
|
throw $sanitizeMinErr('elclob', 'Failed to sanitize html because the element is clobbered: {0}', node.outerHTML || node.outerText);
|
||
|
|
}
|
||
|
|
return nextNode;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function sanitizeText(chars) {
|
||
|
|
var buf = [];
|
||
|
|
var writer = htmlSanitizeWriter(buf, noop);
|
||
|
|
writer.chars(chars);
|
||
|
|
return buf.join('');
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// define ngSanitize module and register $sanitize service
|
||
|
|
angular.module('ngSanitize', [])
|
||
|
|
.provider('$sanitize', $SanitizeProvider)
|
||
|
|
.info({ angularVersion: '1.7.8' });
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @ngdoc filter
|
||
|
|
* @name linky
|
||
|
|
* @kind function
|
||
|
|
*
|
||
|
|
* @description
|
||
|
|
* Finds links in text input and turns them into html links. Supports `http/https/ftp/sftp/mailto` and
|
||
|
|
* plain email address links.
|
||
|
|
*
|
||
|
|
* Requires the {@link ngSanitize `ngSanitize`} module to be installed.
|
||
|
|
*
|
||
|
|
* @param {string} text Input text.
|
||
|
|
* @param {string} [target] Window (`_blank|_self|_parent|_top`) or named frame to open links in.
|
||
|
|
* @param {object|function(url)} [attributes] Add custom attributes to the link element.
|
||
|
|
*
|
||
|
|
* Can be one of:
|
||
|
|
*
|
||
|
|
* - `object`: A map of attributes
|
||
|
|
* - `function`: Takes the url as a parameter and returns a map of attributes
|
||
|
|
*
|
||
|
|
* If the map of attributes contains a value for `target`, it overrides the value of
|
||
|
|
* the target parameter.
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* @returns {string} Html-linkified and {@link $sanitize sanitized} text.
|
||
|
|
*
|
||
|
|
* @usage
|
||
|
|
<span ng-bind-html="linky_expression | linky"></span>
|
||
|
|
*
|
||
|
|
* @example
|
||
|
|
<example module="linkyExample" deps="angular-sanitize.js" name="linky-filter">
|
||
|
|
<file name="index.html">
|
||
|
|
<div ng-controller="ExampleController">
|
||
|
|
Snippet: <textarea ng-model="snippet" cols="60" rows="3"></textarea>
|
||
|
|
<table>
|
||
|
|
<tr>
|
||
|
|
<th>Filter</th>
|
||
|
|
<th>Source</th>
|
||
|
|
<th>Rendered</th>
|
||
|
|
</tr>
|
||
|
|
<tr id="linky-filter">
|
||
|
|
<td>linky filter</td>
|
||
|
|
<td>
|
||
|
|
<pre><div ng-bind-html="snippet | linky"><br></div></pre>
|
||
|
|
</td>
|
||
|
|
<td>
|
||
|
|
<div ng-bind-html="snippet | linky"></div>
|
||
|
|
</td>
|
||
|
|
</tr>
|
||
|
|
<tr id="linky-target">
|
||
|
|
<td>linky target</td>
|
||
|
|
<td>
|
||
|
|
<pre><div ng-bind-html="snippetWithSingleURL | linky:'_blank'"><br></div></pre>
|
||
|
|
</td>
|
||
|
|
<td>
|
||
|
|
<div ng-bind-html="snippetWithSingleURL | linky:'_blank'"></div>
|
||
|
|
</td>
|
||
|
|
</tr>
|
||
|
|
<tr id="linky-custom-attributes">
|
||
|
|
<td>linky custom attributes</td>
|
||
|
|
<td>
|
||
|
|
<pre><div ng-bind-html="snippetWithSingleURL | linky:'_self':{rel: 'nofollow'}"><br></div></pre>
|
||
|
|
</td>
|
||
|
|
<td>
|
||
|
|
<div ng-bind-html="snippetWithSingleURL | linky:'_self':{rel: 'nofollow'}"></div>
|
||
|
|
</td>
|
||
|
|
</tr>
|
||
|
|
<tr id="escaped-html">
|
||
|
|
<td>no filter</td>
|
||
|
|
<td><pre><div ng-bind="snippet"><br></div></pre></td>
|
||
|
|
<td><div ng-bind="snippet"></div></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</file>
|
||
|
|
<file name="script.js">
|
||
|
|
angular.module('linkyExample', ['ngSanitize'])
|
||
|
|
.controller('ExampleController', ['$scope', function($scope) {
|
||
|
|
$scope.snippet =
|
||
|
|
'Pretty text with some links:\n' +
|
||
|
|
'http://angularjs.org/,\n' +
|
||
|
|
'mailto:us@somewhere.org,\n' +
|
||
|
|
'another@somewhere.org,\n' +
|
||
|
|
'and one more: ftp://127.0.0.1/.';
|
||
|
|
$scope.snippetWithSingleURL = 'http://angularjs.org/';
|
||
|
|
}]);
|
||
|
|
</file>
|
||
|
|
<file name="protractor.js" type="protractor">
|
||
|
|
it('should linkify the snippet with urls', function() {
|
||
|
|
expect(element(by.id('linky-filter')).element(by.binding('snippet | linky')).getText()).
|
||
|
|
toBe('Pretty text with some links: http://angularjs.org/, us@somewhere.org, ' +
|
||
|
|
'another@somewhere.org, and one more: ftp://127.0.0.1/.');
|
||
|
|
expect(element.all(by.css('#linky-filter a')).count()).toEqual(4);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should not linkify snippet without the linky filter', function() {
|
||
|
|
expect(element(by.id('escaped-html')).element(by.binding('snippet')).getText()).
|
||
|
|
toBe('Pretty text with some links: http://angularjs.org/, mailto:us@somewhere.org, ' +
|
||
|
|
'another@somewhere.org, and one more: ftp://127.0.0.1/.');
|
||
|
|
expect(element.all(by.css('#escaped-html a')).count()).toEqual(0);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should update', function() {
|
||
|
|
element(by.model('snippet')).clear();
|
||
|
|
element(by.model('snippet')).sendKeys('new http://link.');
|
||
|
|
expect(element(by.id('linky-filter')).element(by.binding('snippet | linky')).getText()).
|
||
|
|
toBe('new http://link.');
|
||
|
|
expect(element.all(by.css('#linky-filter a')).count()).toEqual(1);
|
||
|
|
expect(element(by.id('escaped-html')).element(by.binding('snippet')).getText())
|
||
|
|
.toBe('new http://link.');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should work with the target property', function() {
|
||
|
|
expect(element(by.id('linky-target')).
|
||
|
|
element(by.binding("snippetWithSingleURL | linky:'_blank'")).getText()).
|
||
|
|
toBe('http://angularjs.org/');
|
||
|
|
expect(element(by.css('#linky-target a')).getAttribute('target')).toEqual('_blank');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should optionally add custom attributes', function() {
|
||
|
|
expect(element(by.id('linky-custom-attributes')).
|
||
|
|
element(by.binding("snippetWithSingleURL | linky:'_self':{rel: 'nofollow'}")).getText()).
|
||
|
|
toBe('http://angularjs.org/');
|
||
|
|
expect(element(by.css('#linky-custom-attributes a')).getAttribute('rel')).toEqual('nofollow');
|
||
|
|
});
|
||
|
|
</file>
|
||
|
|
</example>
|
||
|
|
*/
|
||
|
|
angular.module('ngSanitize').filter('linky', ['$sanitize', function($sanitize) {
|
||
|
|
var LINKY_URL_REGEXP =
|
||
|
|
/((s?ftp|https?):\/\/|(www\.)|(mailto:)?[A-Za-z0-9._%+-]+@)\S*[^\s.;,(){}<>"\u201d\u2019]/i,
|
||
|
|
MAILTO_REGEXP = /^mailto:/i;
|
||
|
|
|
||
|
|
var linkyMinErr = angular.$$minErr('linky');
|
||
|
|
var isDefined = angular.isDefined;
|
||
|
|
var isFunction = angular.isFunction;
|
||
|
|
var isObject = angular.isObject;
|
||
|
|
var isString = angular.isString;
|
||
|
|
|
||
|
|
return function(text, target, attributes) {
|
||
|
|
if (text == null || text === '') return text;
|
||
|
|
if (!isString(text)) throw linkyMinErr('notstring', 'Expected string but received: {0}', text);
|
||
|
|
|
||
|
|
var attributesFn =
|
||
|
|
isFunction(attributes) ? attributes :
|
||
|
|
isObject(attributes) ? function getAttributesObject() {return attributes;} :
|
||
|
|
function getEmptyAttributesObject() {return {};};
|
||
|
|
|
||
|
|
var match;
|
||
|
|
var raw = text;
|
||
|
|
var html = [];
|
||
|
|
var url;
|
||
|
|
var i;
|
||
|
|
while ((match = raw.match(LINKY_URL_REGEXP))) {
|
||
|
|
// We can not end in these as they are sometimes found at the end of the sentence
|
||
|
|
url = match[0];
|
||
|
|
// if we did not match ftp/http/www/mailto then assume mailto
|
||
|
|
if (!match[2] && !match[4]) {
|
||
|
|
url = (match[3] ? 'http://' : 'mailto:') + url;
|
||
|
|
}
|
||
|
|
i = match.index;
|
||
|
|
addText(raw.substr(0, i));
|
||
|
|
addLink(url, match[0].replace(MAILTO_REGEXP, ''));
|
||
|
|
raw = raw.substring(i + match[0].length);
|
||
|
|
}
|
||
|
|
addText(raw);
|
||
|
|
return $sanitize(html.join(''));
|
||
|
|
|
||
|
|
function addText(text) {
|
||
|
|
if (!text) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
html.push(sanitizeText(text));
|
||
|
|
}
|
||
|
|
|
||
|
|
function addLink(url, text) {
|
||
|
|
var key, linkAttributes = attributesFn(url);
|
||
|
|
html.push('<a ');
|
||
|
|
|
||
|
|
for (key in linkAttributes) {
|
||
|
|
html.push(key + '="' + linkAttributes[key] + '" ');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isDefined(target) && !('target' in linkAttributes)) {
|
||
|
|
html.push('target="',
|
||
|
|
target,
|
||
|
|
'" ');
|
||
|
|
}
|
||
|
|
html.push('href="',
|
||
|
|
url.replace(/"/g, '"'),
|
||
|
|
'">');
|
||
|
|
addText(text);
|
||
|
|
html.push('</a>');
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}]);
|
||
|
|
|
||
|
|
describe('ngBindHtml', function() {
|
||
|
|
beforeEach(module('ngSanitize'));
|
||
|
|
|
||
|
|
it('should set html', inject(function($rootScope, $compile) {
|
||
|
|
var element = $compile('<div ng-bind-html="html"></div>')($rootScope);
|
||
|
|
$rootScope.html = '<div unknown>hello</div>';
|
||
|
|
$rootScope.$digest();
|
||
|
|
expect(lowercase(element.html())).toEqual('<div>hello</div>');
|
||
|
|
}));
|
||
|
|
|
||
|
|
|
||
|
|
it('should reset html when value is null or undefined', inject(function($compile, $rootScope) {
|
||
|
|
var element = $compile('<div ng-bind-html="html"></div>')($rootScope);
|
||
|
|
|
||
|
|
angular.forEach([null, undefined, ''], function(val) {
|
||
|
|
$rootScope.html = 'some val';
|
||
|
|
$rootScope.$digest();
|
||
|
|
expect(lowercase(element.html())).toEqual('some val');
|
||
|
|
|
||
|
|
$rootScope.html = val;
|
||
|
|
$rootScope.$digest();
|
||
|
|
expect(lowercase(element.html())).toEqual('');
|
||
|
|
});
|
||
|
|
}));
|
||
|
|
});
|
||
|
|
|
||
|
|
describe('linky', function() {
|
||
|
|
var linky;
|
||
|
|
|
||
|
|
beforeEach(module('ngSanitize'));
|
||
|
|
|
||
|
|
beforeEach(inject(function($filter) {
|
||
|
|
linky = $filter('linky');
|
||
|
|
}));
|
||
|
|
|
||
|
|
it('should do basic filter', function() {
|
||
|
|
expect(linky('http://ab/ (http://a/) <http://a/> http://1.2/v:~-123. c “http://example.com” ‘http://me.com’')).
|
||
|
|
toEqual('<a href="http://ab/">http://ab/</a> ' +
|
||
|
|
'(<a href="http://a/">http://a/</a>) ' +
|
||
|
|
'<<a href="http://a/">http://a/</a>> ' +
|
||
|
|
'<a href="http://1.2/v:~-123">http://1.2/v:~-123</a>. c ' +
|
||
|
|
'“<a href="http://example.com">http://example.com</a>” ' +
|
||
|
|
'‘<a href="http://me.com">http://me.com</a>’');
|
||
|
|
expect(linky(undefined)).not.toBeDefined();
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should return `undefined`/`null`/`""` values unchanged', function() {
|
||
|
|
expect(linky(undefined)).toBeUndefined();
|
||
|
|
expect(linky(null)).toBe(null);
|
||
|
|
expect(linky('')).toBe('');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should throw an error when used with a non-string value (other than `undefined`/`null`)',
|
||
|
|
function() {
|
||
|
|
expect(function() { linky(false); }).
|
||
|
|
toThrowMinErr('linky', 'notstring', 'Expected string but received: false');
|
||
|
|
|
||
|
|
expect(function() { linky(true); }).
|
||
|
|
toThrowMinErr('linky', 'notstring', 'Expected string but received: true');
|
||
|
|
|
||
|
|
expect(function() { linky(0); }).
|
||
|
|
toThrowMinErr('linky', 'notstring', 'Expected string but received: 0');
|
||
|
|
|
||
|
|
expect(function() { linky(42); }).
|
||
|
|
toThrowMinErr('linky', 'notstring', 'Expected string but received: 42');
|
||
|
|
|
||
|
|
expect(function() { linky({}); }).
|
||
|
|
toThrowMinErr('linky', 'notstring', 'Expected string but received: {}');
|
||
|
|
|
||
|
|
expect(function() { linky([]); }).
|
||
|
|
toThrowMinErr('linky', 'notstring', 'Expected string but received: []');
|
||
|
|
|
||
|
|
expect(function() { linky(noop); }).
|
||
|
|
toThrowMinErr('linky', 'notstring', 'Expected string but received: function noop()');
|
||
|
|
}
|
||
|
|
);
|
||
|
|
|
||
|
|
it('should be case-insensitive', function() {
|
||
|
|
expect(linky('WWW.example.com')).toEqual('<a href="http://WWW.example.com">WWW.example.com</a>');
|
||
|
|
expect(linky('WWW.EXAMPLE.COM')).toEqual('<a href="http://WWW.EXAMPLE.COM">WWW.EXAMPLE.COM</a>');
|
||
|
|
expect(linky('HTTP://www.example.com')).toEqual('<a href="HTTP://www.example.com">HTTP://www.example.com</a>');
|
||
|
|
expect(linky('HTTP://example.com')).toEqual('<a href="HTTP://example.com">HTTP://example.com</a>');
|
||
|
|
expect(linky('HTTPS://www.example.com')).toEqual('<a href="HTTPS://www.example.com">HTTPS://www.example.com</a>');
|
||
|
|
expect(linky('HTTPS://example.com')).toEqual('<a href="HTTPS://example.com">HTTPS://example.com</a>');
|
||
|
|
expect(linky('FTP://www.example.com')).toEqual('<a href="FTP://www.example.com">FTP://www.example.com</a>');
|
||
|
|
expect(linky('FTP://example.com')).toEqual('<a href="FTP://example.com">FTP://example.com</a>');
|
||
|
|
expect(linky('SFTP://www.example.com')).toEqual('<a href="SFTP://www.example.com">SFTP://www.example.com</a>');
|
||
|
|
expect(linky('SFTP://example.com')).toEqual('<a href="SFTP://example.com">SFTP://example.com</a>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should handle www.', function() {
|
||
|
|
expect(linky('www.example.com')).toEqual('<a href="http://www.example.com">www.example.com</a>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should handle mailto:', function() {
|
||
|
|
expect(linky('mailto:me@example.com')).
|
||
|
|
toEqual('<a href="mailto:me@example.com">me@example.com</a>');
|
||
|
|
expect(linky('me@example.com')).
|
||
|
|
toEqual('<a href="mailto:me@example.com">me@example.com</a>');
|
||
|
|
expect(linky('send email to me@example.com, but')).
|
||
|
|
toEqual('send email to <a href="mailto:me@example.com">me@example.com</a>, but');
|
||
|
|
expect(linky('my email is "me@example.com"')).
|
||
|
|
toEqual('my email is "<a href="mailto:me@example.com">me@example.com</a>"');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should handle quotes in the email', function() {
|
||
|
|
expect(linky('foo@"bar".com')).toEqual('<a href="mailto:foo@"bar".com">foo@"bar".com</a>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should handle target:', function() {
|
||
|
|
expect(linky('http://example.com', '_blank')).
|
||
|
|
toBeOneOf('<a target="_blank" href="http://example.com">http://example.com</a>',
|
||
|
|
'<a href="http://example.com" target="_blank">http://example.com</a>');
|
||
|
|
expect(linky('http://example.com', 'someNamedIFrame')).
|
||
|
|
toBeOneOf('<a target="someNamedIFrame" href="http://example.com">http://example.com</a>',
|
||
|
|
'<a href="http://example.com" target="someNamedIFrame">http://example.com</a>');
|
||
|
|
});
|
||
|
|
|
||
|
|
describe('custom attributes', function() {
|
||
|
|
|
||
|
|
it('should optionally add custom attributes', function() {
|
||
|
|
expect(linky('http://example.com', '_self', {rel: 'nofollow'})).
|
||
|
|
toBeOneOf('<a rel="nofollow" target="_self" href="http://example.com">http://example.com</a>',
|
||
|
|
'<a href="http://example.com" target="_self" rel="nofollow">http://example.com</a>');
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
it('should override target parameter with custom attributes', function() {
|
||
|
|
expect(linky('http://example.com', '_self', {target: '_blank'})).
|
||
|
|
toBeOneOf('<a target="_blank" href="http://example.com">http://example.com</a>',
|
||
|
|
'<a href="http://example.com" target="_blank">http://example.com</a>');
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
it('should optionally add custom attributes from function', function() {
|
||
|
|
expect(linky('http://example.com', '_self', function(url) {return {'class': 'blue'};})).
|
||
|
|
toBeOneOf('<a class="blue" target="_self" href="http://example.com">http://example.com</a>',
|
||
|
|
'<a href="http://example.com" target="_self" class="blue">http://example.com</a>',
|
||
|
|
'<a class="blue" href="http://example.com" target="_self">http://example.com</a>');
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
it('should pass url as parameter to custom attribute function', function() {
|
||
|
|
var linkParameters = jasmine.createSpy('linkParameters').and.returnValue({'class': 'blue'});
|
||
|
|
linky('http://example.com', '_self', linkParameters);
|
||
|
|
expect(linkParameters).toHaveBeenCalledWith('http://example.com');
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
it('should call the attribute function for all links in the input', function() {
|
||
|
|
var attributeFn = jasmine.createSpy('attributeFn').and.returnValue({});
|
||
|
|
linky('http://example.com and http://google.com', '_self', attributeFn);
|
||
|
|
expect(attributeFn.calls.allArgs()).toEqual([['http://example.com'], ['http://google.com']]);
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
it('should strip unsafe attributes', function() {
|
||
|
|
expect(linky('http://example.com', '_self', {'class': 'blue', 'onclick': 'alert(\'Hi\')'})).
|
||
|
|
toBeOneOf('<a class="blue" target="_self" href="http://example.com">http://example.com</a>',
|
||
|
|
'<a href="http://example.com" target="_self" class="blue">http://example.com</a>',
|
||
|
|
'<a class="blue" href="http://example.com" target="_self">http://example.com</a>');
|
||
|
|
});
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
describe('HTML', function() {
|
||
|
|
var ua = window.navigator.userAgent;
|
||
|
|
var isChrome = /Chrome/.test(ua) && !/Edge/.test(ua);
|
||
|
|
|
||
|
|
var expectHTML;
|
||
|
|
|
||
|
|
beforeEach(module('ngSanitize'));
|
||
|
|
beforeEach(function() {
|
||
|
|
expectHTML = function(html) {
|
||
|
|
var sanitize;
|
||
|
|
inject(function($sanitize) {
|
||
|
|
sanitize = $sanitize;
|
||
|
|
});
|
||
|
|
return expect(sanitize(html));
|
||
|
|
};
|
||
|
|
});
|
||
|
|
|
||
|
|
describe('htmlParser', function() {
|
||
|
|
/* global htmlParser */
|
||
|
|
|
||
|
|
var handler, start, text, comment;
|
||
|
|
beforeEach(function() {
|
||
|
|
text = '';
|
||
|
|
start = null;
|
||
|
|
handler = {
|
||
|
|
start: function(tag, attrs) {
|
||
|
|
start = {
|
||
|
|
tag: tag,
|
||
|
|
attrs: attrs
|
||
|
|
};
|
||
|
|
// Since different browsers handle newlines differently we trim
|
||
|
|
// so that it is easier to write tests.
|
||
|
|
for (var i = 0, ii = attrs.length; i < ii; i++) {
|
||
|
|
var keyValue = attrs[i];
|
||
|
|
var key = keyValue.key;
|
||
|
|
var value = keyValue.value;
|
||
|
|
attrs[key] = value.replace(/^\s*/, '').replace(/\s*$/, '');
|
||
|
|
}
|
||
|
|
},
|
||
|
|
chars: function(text_) {
|
||
|
|
text += text_;
|
||
|
|
},
|
||
|
|
end:function(tag) {
|
||
|
|
expect(tag).toEqual(start.tag);
|
||
|
|
},
|
||
|
|
comment:function(comment_) {
|
||
|
|
comment = comment_;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
// Trigger the $sanitizer provider to execute, which initializes the `htmlParser` function.
|
||
|
|
inject(function($sanitize) {});
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should not parse comments', function() {
|
||
|
|
htmlParser('<!--FOOBAR-->', handler);
|
||
|
|
expect(comment).not.toBeDefined();
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should parse basic format', function() {
|
||
|
|
htmlParser('<tag attr="value">text</tag>', handler);
|
||
|
|
expect(start).toEqual({tag:'tag', attrs:{attr:'value'}});
|
||
|
|
expect(text).toEqual('text');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should not treat "<" followed by a non-/ or non-letter as a tag', function() {
|
||
|
|
expectHTML('<- text1 text2 <1 text1 text2 <{', handler).
|
||
|
|
toBe('<- text1 text2 <1 text1 text2 <{');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should accept tag delimiters such as "<" inside real tags', function() {
|
||
|
|
// Assert that the < is part of the text node content, and not part of a tag name.
|
||
|
|
htmlParser('<p> 10 < 100 </p>', handler);
|
||
|
|
expect(text).toEqual(' 10 < 100 ');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should parse newlines in tags', function() {
|
||
|
|
htmlParser('<tag\n attr="value"\n>text</\ntag\n>', handler);
|
||
|
|
expect(start).toEqual({tag:'tag', attrs:{attr:'value'}});
|
||
|
|
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:'\nvalue\n'}});
|
||
|
|
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':'\nvalue\n'}});
|
||
|
|
expect(text).toEqual('text');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should parse empty value attribute of node', function() {
|
||
|
|
htmlParser('<test-foo selected value="">abc</test-foo>', handler);
|
||
|
|
expect(start).toEqual({tag:'test-foo', attrs:{selected:'', value:''}});
|
||
|
|
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>.').
|
||
|
|
toBeOneOf('hello<b class="1\'23" align="""">world</b>.',
|
||
|
|
'hello<b align="""" class="1\'23">world</b>.');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should remove script', function() {
|
||
|
|
expectHTML('a<SCRIPT>evil< / scrIpt >c.').toEqual('a');
|
||
|
|
expectHTML('a<SCRIPT>evil</scrIpt>c.').toEqual('ac.');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should remove script that has newline characters', function() {
|
||
|
|
expectHTML('a<SCRIPT\n>\n\revil\n\r</scrIpt\n >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 escape non-start tags', function() {
|
||
|
|
expectHTML('a< SCRIPT >A< SCRIPT >evil< / scrIpt >B< / scrIpt >c.').
|
||
|
|
toBe('a< SCRIPT >A< SCRIPT >evil< / scrIpt >B< / scrIpt >c.');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should remove attrs', function() {
|
||
|
|
expectHTML('a<div style="abc">b</div>c').toEqual('a<div>b</div>c');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should handle large datasets', function() {
|
||
|
|
// Large is non-trivial to quantify, but handling ~100,000 should be sufficient for most purposes.
|
||
|
|
var largeNumber = 17; // 2^17 = 131,072
|
||
|
|
var result = '<div>b</div>';
|
||
|
|
// Ideally we would use repeat, but that isn't supported in IE.
|
||
|
|
for (var i = 0; i < largeNumber; i++) {
|
||
|
|
result += result;
|
||
|
|
}
|
||
|
|
expectHTML('a' + result + 'c').toEqual('a' + result + 'c');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should remove style', function() {
|
||
|
|
expectHTML('a<STyle>evil</stYle>c.').toEqual('ac.');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should remove style that has newline characters', function() {
|
||
|
|
expectHTML('a<STyle \n>\n\revil\n\r</stYle\n>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('ailc.');
|
||
|
|
});
|
||
|
|
|
||
|
|
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>');
|
||
|
|
expectHTML('<img src="foo.gif" usemap="#foomap">').toEqual('<img src="foo.gif">');
|
||
|
|
});
|
||
|
|
|
||
|
|
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 mangle improper html', function() {
|
||
|
|
// This text is encoded more than a real HTML parser would, but it should render the same.
|
||
|
|
expectHTML('< div rel="</div>" alt=abc dir=\'"\' >text< /div>').
|
||
|
|
toBe('< div rel="" alt=abc dir=\'"\' >text< /div>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should mangle improper html2', function() {
|
||
|
|
// A proper HTML parser would clobber this more in most cases, but it looks reasonable.
|
||
|
|
expectHTML('< div rel="</div>" / >').
|
||
|
|
toBe('< div rel="" / >');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should ignore back slash as escape', function() {
|
||
|
|
expectHTML('<img alt="xxx\\" title="><script>....">').
|
||
|
|
toBeOneOf('<img alt="xxx\\" title="><script>....">',
|
||
|
|
'<img title="><script>...." alt="xxx\\">');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should ignore object attributes', function() {
|
||
|
|
expectHTML('<a constructor="hola">:)</a>').
|
||
|
|
toEqual('<a>:)</a>');
|
||
|
|
expectHTML('<constructor constructor="hola">:)</constructor>').
|
||
|
|
toEqual('');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should keep spaces as prefix/postfix', function() {
|
||
|
|
expectHTML(' a ').toEqual(' a ');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should allow multiline strings', function() {
|
||
|
|
expectHTML('\na\n').toEqual(' a ');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should accept tag delimiters such as "<" inside real tags (with nesting)', function() {
|
||
|
|
//this is an integrated version of the 'should accept tag delimiters such as "<" inside real tags' test
|
||
|
|
expectHTML('<p> 10 < <span>100</span> </p>')
|
||
|
|
.toEqual('<p> 10 < <span>100</span> </p>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should accept non-string arguments', function() {
|
||
|
|
expectHTML(null).toBe('');
|
||
|
|
expectHTML(undefined).toBe('');
|
||
|
|
expectHTML(42).toBe('42');
|
||
|
|
expectHTML({}).toBe('[object Object]');
|
||
|
|
expectHTML([1, 2, 3]).toBe('1,2,3');
|
||
|
|
expectHTML(true).toBe('true');
|
||
|
|
expectHTML(false).toBe('false');
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
it('should strip svg elements if not enabled via provider', function() {
|
||
|
|
expectHTML('<svg width="400px" height="150px" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red"></svg>')
|
||
|
|
.toEqual('');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should prevent mXSS attacks', function() {
|
||
|
|
expectHTML('<a href="　javascript:alert(1)">CLICKME</a>').toBe('<a>CLICKME</a>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should strip html comments', function() {
|
||
|
|
expectHTML('<!-- comment 1 --><p>text1<!-- comment 2 -->text2</p><!-- comment 3 -->')
|
||
|
|
.toEqual('<p>text1text2</p>');
|
||
|
|
});
|
||
|
|
|
||
|
|
describe('clobbered elements', function() {
|
||
|
|
|
||
|
|
it('should throw on a form with an input named "parentNode"', function() {
|
||
|
|
inject(function($sanitize) {
|
||
|
|
|
||
|
|
expect(function() {
|
||
|
|
$sanitize('<form><input name="parentNode" /></form>');
|
||
|
|
}).toThrowMinErr('$sanitize', 'elclob');
|
||
|
|
|
||
|
|
expect(function() {
|
||
|
|
$sanitize('<form><div><div><input name="parentNode" /></div></div></form>');
|
||
|
|
}).toThrowMinErr('$sanitize', 'elclob');
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
if (!/Edge\/\d{2,}/.test(window.navigator.userAgent)) {
|
||
|
|
// Skip test on Edge due to a browser bug.
|
||
|
|
it('should throw on a form with an input named "nextSibling"', function() {
|
||
|
|
inject(function($sanitize) {
|
||
|
|
|
||
|
|
expect(function() {
|
||
|
|
$sanitize('<form><input name="nextSibling" /></form>');
|
||
|
|
}).toThrowMinErr('$sanitize', 'elclob');
|
||
|
|
|
||
|
|
expect(function() {
|
||
|
|
$sanitize('<form><div><div><input name="nextSibling" /></div></div></form>');
|
||
|
|
}).toThrowMinErr('$sanitize', 'elclob');
|
||
|
|
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
// See https://github.com/cure53/DOMPurify/blob/a992d3a75031cb8bb032e5ea8399ba972bdf9a65/src/purify.js#L439-L449
|
||
|
|
it('should not allow JavaScript execution when creating inert document', inject(function($sanitize) {
|
||
|
|
$sanitize('<svg><g onload="window.xxx = 100"></g></svg>');
|
||
|
|
|
||
|
|
expect(window.xxx).toBe(undefined);
|
||
|
|
delete window.xxx;
|
||
|
|
}));
|
||
|
|
|
||
|
|
// See https://github.com/cure53/DOMPurify/releases/tag/0.6.7
|
||
|
|
it('should not allow JavaScript hidden in badly formed HTML to get through sanitization (Firefox bug)', inject(function($sanitize) {
|
||
|
|
var doc = $sanitize('<svg><p><style><img src="</style><img src=x onerror=alert(1)//">');
|
||
|
|
expect(doc).toEqual('<p><img src="x"></p>');
|
||
|
|
}));
|
||
|
|
|
||
|
|
describe('Custom white-list support', function() {
|
||
|
|
|
||
|
|
var $sanitizeProvider;
|
||
|
|
beforeEach(module(function(_$sanitizeProvider_) {
|
||
|
|
$sanitizeProvider = _$sanitizeProvider_;
|
||
|
|
|
||
|
|
$sanitizeProvider.addValidElements(['foo']);
|
||
|
|
$sanitizeProvider.addValidElements({
|
||
|
|
htmlElements: ['foo-button', 'foo-video'],
|
||
|
|
htmlVoidElements: ['foo-input'],
|
||
|
|
svgElements: ['foo-svg']
|
||
|
|
});
|
||
|
|
$sanitizeProvider.addValidAttrs(['foo']);
|
||
|
|
}));
|
||
|
|
|
||
|
|
it('should allow custom white-listed element', function() {
|
||
|
|
expectHTML('<foo></foo>').toEqual('<foo></foo>');
|
||
|
|
expectHTML('<foo-button></foo-button>').toEqual('<foo-button></foo-button>');
|
||
|
|
expectHTML('<foo-video></foo-video>').toEqual('<foo-video></foo-video>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should allow custom white-listed void element', function() {
|
||
|
|
expectHTML('<foo-input/>').toEqual('<foo-input>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should allow custom white-listed void element to be used with closing tag', function() {
|
||
|
|
expectHTML('<foo-input></foo-input>').toEqual('<foo-input>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should allow custom white-listed attribute', function() {
|
||
|
|
expectHTML('<foo-input foo="foo"/>').toEqual('<foo-input foo="foo">');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should ignore custom white-listed SVG element if SVG disabled', function() {
|
||
|
|
expectHTML('<foo-svg></foo-svg>').toEqual('');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should not allow add custom element after service has been instantiated', inject(function($sanitize) {
|
||
|
|
$sanitizeProvider.addValidElements(['bar']);
|
||
|
|
expectHTML('<bar></bar>').toEqual('');
|
||
|
|
}));
|
||
|
|
});
|
||
|
|
|
||
|
|
describe('SVG support', function() {
|
||
|
|
|
||
|
|
beforeEach(module(function($sanitizeProvider) {
|
||
|
|
$sanitizeProvider.enableSvg(true);
|
||
|
|
$sanitizeProvider.addValidElements({
|
||
|
|
svgElements: ['font-face-uri']
|
||
|
|
});
|
||
|
|
}));
|
||
|
|
|
||
|
|
it('should accept SVG tags', function() {
|
||
|
|
expectHTML('<svg width="400px" height="150px" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red"></svg>')
|
||
|
|
.toBeOneOf('<svg width="400px" height="150px" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red"></circle></svg>',
|
||
|
|
'<svg xmlns="http://www.w3.org/2000/svg" height="150px" width="400px"><circle fill="red" stroke-width="3" stroke="black" r="40" cy="50" cx="50"></circle></svg>',
|
||
|
|
'<svg width="400px" height="150px" xmlns="http://www.w3.org/2000/svg"><circle fill="red" stroke="black" stroke-width="3" cx="50" cy="50" r="40"></circle></svg>',
|
||
|
|
'<svg width="400px" height="150px" xmlns="http://www.w3.org/2000/svg"><circle FILL="red" STROKE="black" STROKE-WIDTH="3" cx="50" cy="50" r="40"></circle></svg>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should not ignore white-listed svg camelCased attributes', function() {
|
||
|
|
expectHTML('<svg preserveAspectRatio="true"></svg>')
|
||
|
|
.toBeOneOf('<svg preserveAspectRatio="true"></svg>',
|
||
|
|
'<svg preserveAspectRatio="true" xmlns="http://www.w3.org/2000/svg"></svg>');
|
||
|
|
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should allow custom white-listed SVG element', function() {
|
||
|
|
expectHTML('<font-face-uri></font-face-uri>').toEqual('<font-face-uri></font-face-uri>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should sanitize SVG xlink:href attribute values', function() {
|
||
|
|
expectHTML('<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><a xlink:href="javascript:alert()"></a></svg>')
|
||
|
|
.toBeOneOf('<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><a></a></svg>',
|
||
|
|
'<svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg"><a></a></svg>',
|
||
|
|
'<svg xmlns="http://www.w3.org/2000/svg"><a xmlns:xlink="http://www.w3.org/1999/xlink"></a></svg>');
|
||
|
|
|
||
|
|
expectHTML('<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><a xlink:href="https://example.com"></a></svg>')
|
||
|
|
.toBeOneOf('<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><a xlink:href="https://example.com"></a></svg>',
|
||
|
|
'<svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg"><a xlink:href="https://example.com"></a></svg>',
|
||
|
|
'<svg xmlns="http://www.w3.org/2000/svg"><a xlink:href="https://example.com" xmlns:xlink="http://www.w3.org/1999/xlink"></a></svg>',
|
||
|
|
'<svg xmlns="http://www.w3.org/2000/svg"><a xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://example.com"></a></svg>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should sanitize SVG xml:base attribute values', function() {
|
||
|
|
expectHTML('<svg xmlns="http://www.w3.org/2000/svg"><a xml:base="javascript:alert(1)//" href="#"></a></svg>')
|
||
|
|
.toEqual('<svg xmlns="http://www.w3.org/2000/svg"><a href="#"></a></svg>');
|
||
|
|
|
||
|
|
expectHTML('<svg xmlns="http://www.w3.org/2000/svg"><a xml:base="https://example.com" href="#"></a></svg>')
|
||
|
|
.toEqual('<svg xmlns="http://www.w3.org/2000/svg"><a xml:base="https://example.com" href="#"></a></svg>');
|
||
|
|
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should sanitize unknown namespaced SVG attributes', function() {
|
||
|
|
expectHTML('<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><a xlink:foo="javascript:alert()"></a></svg>')
|
||
|
|
.toBeOneOf('<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><a></a></svg>',
|
||
|
|
'<svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg"><a></a></svg>',
|
||
|
|
'<svg xmlns="http://www.w3.org/2000/svg"><a></a></svg>');
|
||
|
|
|
||
|
|
expectHTML('<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><a xlink:bar="https://example.com"></a></svg>')
|
||
|
|
.toBeOneOf('<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><a></a></svg>',
|
||
|
|
'<svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg"><a></a></svg>',
|
||
|
|
'<svg xmlns="http://www.w3.org/2000/svg"><a></a></svg>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should not accept SVG animation tags', function() {
|
||
|
|
expectHTML('<svg xmlns:xlink="http://www.w3.org/1999/xlink"><a><text y="1em">Click me</text><animate attributeName="xlink:href" values="javascript:alert(1)"/></a></svg>')
|
||
|
|
.toBeOneOf('<svg xmlns:xlink="http://www.w3.org/1999/xlink"><a><text y="1em">Click me</text></a></svg>',
|
||
|
|
'<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><a><text y="1em">Click me</text></a></svg>',
|
||
|
|
'<svg xmlns="http://www.w3.org/2000/svg"><a><text y="1em">Click me</text></a></svg>');
|
||
|
|
|
||
|
|
expectHTML('<svg><a xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="?"><circle r="400"></circle>' +
|
||
|
|
'<animate attributeName="xlink:href" begin="0" from="javascript:alert(1)" to="&" /></a></svg>')
|
||
|
|
.toBeOneOf('<svg><a xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="?"><circle r="400"></circle></a></svg>',
|
||
|
|
'<svg><a xlink:href="?" xmlns:xlink="http://www.w3.org/1999/xlink"><circle r="400"></circle></a></svg>',
|
||
|
|
'<svg xmlns="http://www.w3.org/2000/svg"><a xlink:href="?" xmlns:xlink="http://www.w3.org/1999/xlink"><circle r="400"></circle></a></svg>',
|
||
|
|
'<svg xmlns="http://www.w3.org/2000/svg"><a xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="?"><circle r="400"></circle></a></svg>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should not accept SVG `use` tags', function() {
|
||
|
|
expectHTML('<svg><use xlink:href="test.svg#xss" /></svg>')
|
||
|
|
.toBeOneOf('<svg></svg>',
|
||
|
|
'<svg xmlns:xlink="http://www.w3.org/1999/xlink"></svg>',
|
||
|
|
'<svg xmlns="http://www.w3.org/2000/svg"></svg>');
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
describe('htmlSanitizerWriter', function() {
|
||
|
|
/* global htmlSanitizeWriter: false */
|
||
|
|
|
||
|
|
var writer, html, uriValidator;
|
||
|
|
beforeEach(function() {
|
||
|
|
html = '';
|
||
|
|
uriValidator = jasmine.createSpy('uriValidator');
|
||
|
|
writer = htmlSanitizeWriter({push:function(text) {html += text;}}, uriValidator);
|
||
|
|
});
|
||
|
|
|
||
|
|
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 misformed elements', function() {
|
||
|
|
writer.start('d>i&v', {});
|
||
|
|
expect(html).toEqual('');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should ignore unknown attributes', function() {
|
||
|
|
writer.start('div', {unknown:''});
|
||
|
|
expect(html).toEqual('<div>');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should handle surrogate pair', function() {
|
||
|
|
writer.chars(String.fromCharCode(55357, 56374));
|
||
|
|
expect(html).toEqual('🐶');
|
||
|
|
});
|
||
|
|
|
||
|
|
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('uri validation', function() {
|
||
|
|
it('should call the uri validator', function() {
|
||
|
|
writer.start('a', {href:'someUrl'}, false);
|
||
|
|
expect(uriValidator).toHaveBeenCalledWith('someUrl', false);
|
||
|
|
uriValidator.calls.reset();
|
||
|
|
writer.start('img', {src:'someImgUrl'}, false);
|
||
|
|
expect(uriValidator).toHaveBeenCalledWith('someImgUrl', true);
|
||
|
|
uriValidator.calls.reset();
|
||
|
|
writer.start('someTag', {src:'someNonUrl'}, false);
|
||
|
|
expect(uriValidator).not.toHaveBeenCalled();
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should drop non valid uri attributes', function() {
|
||
|
|
uriValidator.and.returnValue(false);
|
||
|
|
writer.start('a', {href:'someUrl'}, false);
|
||
|
|
expect(html).toEqual('<a>');
|
||
|
|
|
||
|
|
html = '';
|
||
|
|
uriValidator.and.returnValue(true);
|
||
|
|
writer.start('a', {href:'someUrl'}, false);
|
||
|
|
expect(html).toEqual('<a href="someUrl">');
|
||
|
|
});
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
describe('uri checking', function() {
|
||
|
|
beforeEach(function() {
|
||
|
|
jasmine.addMatchers({
|
||
|
|
toBeValidUrl: function() {
|
||
|
|
return {
|
||
|
|
compare: function(actual) {
|
||
|
|
var sanitize;
|
||
|
|
inject(function($sanitize) {
|
||
|
|
sanitize = $sanitize;
|
||
|
|
});
|
||
|
|
var input = '<a href="' + actual + '"></a>';
|
||
|
|
return { pass: sanitize(input) === input };
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should use $$sanitizeUri for a[href] links', function() {
|
||
|
|
var $$sanitizeUri = jasmine.createSpy('$$sanitizeUri');
|
||
|
|
module(function($provide) {
|
||
|
|
$provide.value('$$sanitizeUri', $$sanitizeUri);
|
||
|
|
});
|
||
|
|
inject(function() {
|
||
|
|
$$sanitizeUri.and.returnValue('someUri');
|
||
|
|
|
||
|
|
expectHTML('<a href="someUri"></a>').toEqual('<a href="someUri"></a>');
|
||
|
|
expect($$sanitizeUri).toHaveBeenCalledWith('someUri', false);
|
||
|
|
|
||
|
|
$$sanitizeUri.and.returnValue('unsafe:someUri');
|
||
|
|
expectHTML('<a href="someUri"></a>').toEqual('<a></a>');
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should use $$sanitizeUri for img[src] links', function() {
|
||
|
|
var $$sanitizeUri = jasmine.createSpy('$$sanitizeUri');
|
||
|
|
module(function($provide) {
|
||
|
|
$provide.value('$$sanitizeUri', $$sanitizeUri);
|
||
|
|
});
|
||
|
|
inject(function() {
|
||
|
|
$$sanitizeUri.and.returnValue('someUri');
|
||
|
|
|
||
|
|
expectHTML('<img src="someUri"/>').toEqual('<img src="someUri">');
|
||
|
|
expect($$sanitizeUri).toHaveBeenCalledWith('someUri', true);
|
||
|
|
|
||
|
|
$$sanitizeUri.and.returnValue('unsafe:someUri');
|
||
|
|
expectHTML('<img src="someUri"/>').toEqual('<img>');
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should be URI', function() {
|
||
|
|
expect('').toBeValidUrl();
|
||
|
|
expect('http://abc').toBeValidUrl();
|
||
|
|
expect('HTTP://abc').toBeValidUrl();
|
||
|
|
expect('https://abc').toBeValidUrl();
|
||
|
|
expect('HTTPS://abc').toBeValidUrl();
|
||
|
|
expect('ftp://abc').toBeValidUrl();
|
||
|
|
expect('FTP://abc').toBeValidUrl();
|
||
|
|
expect('mailto:me@example.com').toBeValidUrl();
|
||
|
|
expect('MAILTO:me@example.com').toBeValidUrl();
|
||
|
|
expect('tel:123-123-1234').toBeValidUrl();
|
||
|
|
expect('TEL:123-123-1234').toBeValidUrl();
|
||
|
|
expect('#anchor').toBeValidUrl();
|
||
|
|
expect('/page1.md').toBeValidUrl();
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should not be URI', function() {
|
||
|
|
// eslint-disable-next-line no-script-url
|
||
|
|
expect('javascript:alert').not.toBeValidUrl();
|
||
|
|
});
|
||
|
|
|
||
|
|
describe('javascript URLs', function() {
|
||
|
|
it('should ignore javascript:', function() {
|
||
|
|
// eslint-disable-next-line no-script-url
|
||
|
|
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 encoded 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();').not.toBeValidUrl();
|
||
|
|
expect('jav
ascript:alert();').not.toBeValidUrl();
|
||
|
|
expect('jav
 ascript:alert();').not.toBeValidUrl();
|
||
|
|
expect('jav\u0000ascript:alert();').not.toBeValidUrl();
|
||
|
|
expect('java\u0000\u0000script:alert();').not.toBeValidUrl();
|
||
|
|
expect('  java\u0000\u0000script:alert();').not.toBeValidUrl();
|
||
|
|
});
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
describe('sanitizeText', function() {
|
||
|
|
/* global sanitizeText: false */
|
||
|
|
it('should escape text', function() {
|
||
|
|
expect(sanitizeText('a<div>&</div>c')).toEqual('a<div>&</div>c');
|
||
|
|
});
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
describe('decodeEntities', function() {
|
||
|
|
var handler, text;
|
||
|
|
|
||
|
|
beforeEach(function() {
|
||
|
|
text = '';
|
||
|
|
handler = {
|
||
|
|
start: function() {},
|
||
|
|
chars: function(text_) {
|
||
|
|
text = text_;
|
||
|
|
},
|
||
|
|
end: function() {},
|
||
|
|
comment: function() {}
|
||
|
|
};
|
||
|
|
module('ngSanitize');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should unescape text', function() {
|
||
|
|
htmlParser('a<div>&</div>c', handler);
|
||
|
|
expect(text).toEqual('a<div>&</div>c');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should preserve whitespace', function() {
|
||
|
|
htmlParser(' a&b ', handler);
|
||
|
|
expect(text).toEqual(' a&b ');
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
})(window, window.angular);
|