discourse/test/javascripts/lib/sanitizer-test.js.es6

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import { default as PrettyText, buildOptions } from "pretty-text/pretty-text";
import { hrefAllowed } from "pretty-text/sanitizer";
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QUnit.module("lib:sanitizer");
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QUnit.test("sanitize", assert => {
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const pt = new PrettyText(
buildOptions({
siteSettings: {
allowed_iframes:
"https://www.google.com/maps/embed?|https://www.openstreetmap.org/export/embed.html?"
}
})
);
const cooked = (input, expected, text) =>
assert.equal(pt.cook(input), expected.replace(/\/>/g, ">"), text);
assert.equal(pt.sanitize('<i class="fa-bug fa-spin">bug</i>'), "<i>bug</i>");
assert.equal(
pt.sanitize("<div><script>alert('hi');</script></div>"),
"<div></div>"
);
assert.equal(
pt.sanitize("<div><p class=\"funky\" wrong='1'>hello</p></div>"),
"<div><p>hello</p></div>"
);
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assert.equal(pt.sanitize("<3 <3"), "&lt;3 &lt;3");
assert.equal(pt.sanitize("<_<"), "&lt;_&lt;");
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cooked(
"hello<script>alert(42)</script>",
"<p>hello</p>",
"it sanitizes while cooking"
);
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cooked(
"<a href='http://disneyland.disney.go.com/'>disney</a> <a href='http://reddit.com'>reddit</a>",
'<p><a href="http://disneyland.disney.go.com/">disney</a> <a href="http://reddit.com">reddit</a></p>',
"we can embed proper links"
);
cooked("<center>hello</center>", "hello", "it does not allow centering");
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cooked(
"<blockquote>a\n</blockquote>\n",
"<blockquote>a\n</blockquote>",
"it does not double sanitize"
);
cooked(
'<iframe src="http://discourse.org" width="100" height="42"></iframe>',
"",
"it does not allow most iframes"
);
cooked(
'<iframe src="https://www.google.com/maps/embed?pb=!1m10!1m8!1m3!1d2624.9983685732213!2d2.29432085!3d48.85824149999999!3m2!1i1024!2i768!4f13.1!5e0!3m2!1sen!2s!4v1385737436368" width="100" height="42"></iframe>',
'<iframe src="https://www.google.com/maps/embed?pb=!1m10!1m8!1m3!1d2624.9983685732213!2d2.29432085!3d48.85824149999999!3m2!1i1024!2i768!4f13.1!5e0!3m2!1sen!2s!4v1385737436368" width="100" height="42"></iframe>',
"it allows iframe to google maps"
);
cooked(
'<iframe width="425" height="350" frameborder="0" marginheight="0" marginwidth="0" src="https://www.openstreetmap.org/export/embed.html?bbox=22.49454975128174%2C51.220338322410775%2C22.523088455200195%2C51.23345342732931&amp;layer=mapnik"></iframe>',
'<iframe width="425" height="350" frameborder="0" marginheight="0" marginwidth="0" src="https://www.openstreetmap.org/export/embed.html?bbox=22.49454975128174%2C51.220338322410775%2C22.523088455200195%2C51.23345342732931&amp;layer=mapnik"></iframe>',
"it allows iframe to OpenStreetMap"
);
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assert.equal(pt.sanitize("<textarea>hullo</textarea>"), "hullo");
assert.equal(pt.sanitize("<button>press me!</button>"), "press me!");
assert.equal(pt.sanitize("<canvas>draw me!</canvas>"), "draw me!");
assert.equal(pt.sanitize("<progress>hello"), "hello");
assert.equal(pt.sanitize("<mark>highlight</mark>"), "highlight");
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cooked(
"[the answer](javascript:alert(42))",
"<p>[the answer](javascript:alert(42))</p>",
"it prevents XSS"
);
cooked(
'<i class="fa fa-bug fa-spin" style="font-size:600%"></i>\n<!-- -->',
"<p><i></i></p>",
"it doesn't circumvent XSS with comments"
);
cooked(
'<span class="-bbcode-s fa fa-spin">a</span>',
"<p><span>a</span></p>",
"it sanitizes spans"
);
cooked(
'<span class="fa fa-spin -bbcode-s">a</span>',
"<p><span>a</span></p>",
"it sanitizes spans"
);
cooked(
'<span class="bbcode-s">a</span>',
'<p><span class="bbcode-s">a</span></p>',
"it sanitizes spans"
);
cooked("<kbd>Ctrl</kbd>+<kbd>C</kbd>", "<p><kbd>Ctrl</kbd>+<kbd>C</kbd></p>");
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cooked(
"it has been <strike>1 day</strike> 0 days since our last test failure",
"<p>it has been <strike>1 day</strike> 0 days since our last test failure</p>"
);
cooked(
`it has been <s>1 day</s> 0 days since our last test failure`,
`<p>it has been <s>1 day</s> 0 days since our last test failure</p>`
);
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cooked(`<div align="center">hello</div>`, `<div align="center">hello</div>`);
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cooked(
`1 + 1 is <del>3</del> <ins>2</ins>`,
`<p>1 + 1 is <del>3</del> <ins>2</ins></p>`
);
cooked(
`<abbr title="JavaScript">JS</abbr>`,
`<p><abbr title="JavaScript">JS</abbr></p>`
);
cooked(
`<dl><dt>Forum</dt><dd>Software</dd></dl>`,
`<dl><dt>Forum</dt><dd>Software</dd></dl>`
);
cooked(
`<sup>high</sup> <sub>low</sub> <big>HUGE</big>`,
`<p><sup>high</sup> <sub>low</sub> <big>HUGE</big></p>`
);
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cooked(`<div dir="rtl">RTL text</div>`, `<div dir="rtl">RTL text</div>`);
});
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QUnit.test("ids on headings", assert => {
const pt = new PrettyText(buildOptions({ siteSettings: {} }));
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assert.equal(pt.sanitize("<h3>Test Heading</h3>"), "<h3>Test Heading</h3>");
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assert.equal(
pt.sanitize(`<h1 id="heading--test">Test Heading</h1>`),
`<h1 id="heading--test">Test Heading</h1>`
);
assert.equal(
pt.sanitize(`<h2 id="heading--cool">Test Heading</h2>`),
`<h2 id="heading--cool">Test Heading</h2>`
);
assert.equal(
pt.sanitize(`<h3 id="heading--dashed-name">Test Heading</h3>`),
`<h3 id="heading--dashed-name">Test Heading</h3>`
);
assert.equal(
pt.sanitize(`<h4 id="heading--underscored_name">Test Heading</h4>`),
`<h4 id="heading--underscored_name">Test Heading</h4>`
);
assert.equal(
pt.sanitize(`<h5 id="heading--trout">Test Heading</h5>`),
`<h5 id="heading--trout">Test Heading</h5>`
);
assert.equal(
pt.sanitize(`<h6 id="heading--discourse">Test Heading</h6>`),
`<h6 id="heading--discourse">Test Heading</h6>`
);
});
QUnit.test("poorly formed ids on headings", assert => {
let pt = new PrettyText(buildOptions({ siteSettings: {} }));
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assert.equal(
pt.sanitize(`<h1 id="evil-trout">Test Heading</h1>`),
`<h1>Test Heading</h1>`
);
assert.equal(
pt.sanitize(`<h1 id="heading--">Test Heading</h1>`),
`<h1>Test Heading</h1>`
);
assert.equal(
pt.sanitize(`<h1 id="heading--with space">Test Heading</h1>`),
`<h1>Test Heading</h1>`
);
assert.equal(
pt.sanitize(`<h1 id="heading--with*char">Test Heading</h1>`),
`<h1>Test Heading</h1>`
);
assert.equal(
pt.sanitize(`<h1 id="heading--">Test Heading</h1>`),
`<h1>Test Heading</h1>`
);
assert.equal(
pt.sanitize(`<h1 id="test-heading--cool">Test Heading</h1>`),
`<h1>Test Heading</h1>`
);
});
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QUnit.test("urlAllowed", assert => {
const allowed = (url, msg) => assert.equal(hrefAllowed(url), url, msg);
allowed("/foo/bar.html", "allows relative urls");
allowed("http://eviltrout.com/evil/trout", "allows full urls");
allowed("https://eviltrout.com/evil/trout", "allows https urls");
allowed("//eviltrout.com/evil/trout", "allows protocol relative urls");
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assert.equal(
hrefAllowed("http://google.com/test'onmouseover=alert('XSS!');//.swf"),
"http://google.com/test%27onmouseover=alert(%27XSS!%27);//.swf",
"escape single quotes"
);
});