silverstripe-framework/tests/php/Forms/HTMLEditor/HTMLEditorSanitiserTest.php

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<?php
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namespace SilverStripe\Forms\Tests\HTMLEditor;
use SilverStripe\Core\Config\Config;
use SilverStripe\Dev\FunctionalTest;
use SilverStripe\Forms\HTMLEditor\HTMLEditorConfig;
use SilverStripe\Forms\HTMLEditor\HTMLEditorSanitiser;
use SilverStripe\View\Parsers\HTMLValue;
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class HTMLEditorSanitiserTest extends FunctionalTest
{
public function testSanitisation()
{
$tests = array(
array(
'p,strong',
'<p>Leave Alone</p><div>Strip parent<strong>But keep children</strong> in order</div>',
'<p>Leave Alone</p>Strip parent<strong>But keep children</strong> in order',
'Non-whitelisted elements are stripped, but children are kept'
),
array(
'p,strong',
'<div>A <strong>B <div>Nested elements are still filtered</div> C</strong> D</div>',
'A <strong>B Nested elements are still filtered C</strong> D',
'Non-whitelisted elements are stripped even when children of non-whitelisted elements'
),
array(
'p',
'<p>Keep</p><script>Strip <strong>including children</strong></script>',
'<p>Keep</p>',
'Non-whitelisted script elements are totally stripped, including any children'
),
array(
'p[id]',
'<p id="keep" bad="strip">Test</p>',
'<p id="keep">Test</p>',
'Non-whitelisted attributes are stripped'
),
array(
'p[default1=default1|default2=default2|force1:force1|force2:force2]',
'<p default1="specific1" force1="specific1">Test</p>',
'<p default1="specific1" force1="force1" default2="default2" force2="force2">Test</p>',
'Default attributes are set when not present in input, forced attributes are always set'
),
array(
'a[href|target|rel]',
'<a href="/test" target="_blank">Test</a>',
'<a href="/test" target="_blank" rel="noopener noreferrer">Test</a>',
'noopener rel attribute is added when target attribute is set'
),
array(
'a[href|target|rel]',
'<a href="/test" target="_top">Test</a>',
'<a href="/test" target="_top" rel="noopener noreferrer">Test</a>',
'noopener rel attribute is added when target is _top instead of _blank'
),
array(
'a[href|target|rel]',
'<a href="/test" rel="noopener noreferrer">Test</a>',
'<a href="/test">Test</a>',
'noopener rel attribute is removed when target is not set'
),
array(
'a[href|target|rel]',
'<a href="/test" rel="noopener noreferrer" target="_blank">Test</a>',
'<a href="/test" target="_blank">Test</a>',
'noopener rel attribute is removed when link_rel_value is an empty string'
),
array(
'a[href|target|rel]',
'<a href="/test" target="_blank">Test</a>',
'<a href="/test" target="_blank">Test</a>',
'noopener rel attribute is unchanged when link_rel_value is null'
),
);
$config = HTMLEditorConfig::get('htmleditorsanitisertest');
foreach ($tests as $test) {
list($validElements, $input, $output, $desc) = $test;
$config->setOptions(array('valid_elements' => $validElements));
$sanitiser = new HtmlEditorSanitiser($config);
$value = 'noopener noreferrer';
if (strpos($desc, 'link_rel_value is an empty string') !== false) {
$value = '';
} elseif (strpos($desc, 'link_rel_value is null') !== false) {
$value = null;
}
Config::inst()->set(HTMLEditorSanitiser::class, 'link_rel_value', $value);
$htmlValue = HTMLValue::create($input);
$sanitiser->sanitise($htmlValue);
$this->assertEquals($output, $htmlValue->getContent(), $desc);
}
}
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}