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async-unsanitized-html-formats-write-read.tentative.https.html
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<!doctype html>
<meta charset="utf-8">
<title>Async Clipboard unsanitized HTML write -> Async Clipboard unsanitized HTML read test</title>
<link rel="help" href="https://w3c.github.io/clipboard-apis/#async-clipboard-api">
<body>Body needed for test_driver.click()</body>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="resources/user-activation.js"></script>
<script>
'use strict';
// This function removes extra spaces between tags in html. For example, the
// following html: "<p> Hello </p> <body> World </body>" would turn into this
// html: "<p> Hello </p> <body> World </body>"
// We remove the extra spaces because in html they are considered equivalent,
// but when we are comparing for equality the spaces make a difference.
function reformatHtml(html) {
const parser = new DOMParser();
const htmlString =
parser.parseFromString(html, 'text/html').documentElement.innerHTML;
const reformattedString = htmlString.replace(/\>\s*\</g, '> <');
return reformattedString;
}
// Writes a payload with custom content and checks to ensure the correct data
// was written successfully.
promise_test(async t => {
await tryGrantReadPermission();
await tryGrantWritePermission();
// Create and write unsanitized version of standard HTML and custom formats.
const format1 = 'text/html';
const format2 = 'web text/html';
const textInput = '<style>p {color:blue}</style><p>Hello World</p>';
const blobInput1 = new Blob([textInput], {type: format1});
const blobInput2 = new Blob([textInput], {type: format2});
const clipboardItemInput = new ClipboardItem(
{[format1]: blobInput1, [format2]: blobInput2});
await waitForUserActivation();
await navigator.clipboard.write([clipboardItemInput]);
// Read unsanitized version of HTML format.
await waitForUserActivation();
const clipboardItems = await navigator.clipboard.read();
assert_equals(clipboardItems.length, 1);
const clipboardItem = clipboardItems[0];
assert_true(clipboardItem instanceof ClipboardItem);
const blobOutput1 = await clipboardItem.getType(format1);
assert_equals(blobOutput1.type, format1);
const data1 = await (new Response(blobOutput1)).text();
const outputHtml = reformatHtml(data1);
const expectedHtml = '<p style="color: blue; font-size: medium; font-style: normal; ' +
'font-variant-ligatures: normal; font-variant-caps: normal; ' +
'font-weight: 400; letter-spacing: normal; orphans: 2; ' +
'text-align: start; text-indent: 0px; text-transform: none; '+
'widows: 2; word-spacing: 0px; ' +
'-webkit-text-stroke-width: 0px; ' +
'white-space: normal; ' +
'text-decoration-thickness: initial; ' +
'text-decoration-style: initial; text-decoration-color: initial;">' +
'Hello World</p>';
const inputHtml = reformatHtml(expectedHtml);
assert_equals(outputHtml, inputHtml);
const blobOutput2 = await clipboardItem.getType(format2);
assert_equals(blobOutput2.type, format2);
const data2 = await (new Response(blobOutput2)).text();
assert_equals(data2, textInput);
}, 'Verify write and read unsanitized content to the clipboard given text/html format as input');
</script>