tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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shared-storage-writable-iframe-request-in-data-url.tentative.https.sub.html (2458B)


      1 <!doctype html>
      2 <body>
      3  <script src=/resources/testharness.js></script>
      4  <script src=/resources/testharnessreport.js></script>
      5  <script src=/common/utils.js></script>
      6  <script src=/fenced-frame/resources/utils.js></script>
      7  <script src=/shared-storage/resources/util.js></script>
      8  <script>
      9    'use strict';
     10    const origin = window.location.origin;
     11    const rawSetHeader = 'set;key=hello;value=world';
     12    const setHeader = encodeURIComponent(rawSetHeader);
     13 
     14    promise_test(async t => {
     15      let frame = document.createElement('iframe');
     16      const promise = new Promise((resolve, reject) => {
     17        window.addEventListener('message', async function handler(evt) {
     18          if (evt.source === frame.contentWindow &&
     19              evt.data.sharedStorageWritableHeader) {
     20            document.body.removeChild(frame);
     21            window.removeEventListener('message', handler);
     22            resolve(evt.data.sharedStorageWritableHeader);
     23          }
     24        });
     25        window.addEventListener('error', (error) => {
     26          reject(error);
     27        });
     28      });
     29 
     30      const innerUrl =
     31        `${origin}\\/shared-storage\\/resources\\/shared-storage-write-`
     32        + `notify-parent.py?write=${setHeader}`;
     33      const innerCode = `
     34 let parentOrOpener = window.opener || window.parent;
     35 let innerFrame = document.createElement('iframe');
     36 window.addEventListener('message', async (evt) => {
     37  if (evt.source === innerFrame.contentWindow &&
     38      evt.data.sharedStorageWritableHeader) {
     39    parentOrOpener.postMessage({sharedStorageWritableHeader:
     40                                evt.data.sharedStorageWritableHeader}, '*');
     41  }
     42 });
     43 window.addEventListener('error', (error) => {
     44  parentOrOpener.postMessage({sharedStorageWritableHeader: error.message}, '*');
     45 });
     46 innerFrame.src = '${innerUrl}';
     47 innerFrame.sharedStorageWritable = true;
     48 document.body.appendChild(innerFrame);
     49 `;
     50 
     51      const dataURL = 'data:text/html;base64,'
     52        + btoa(unescape('%3Chtml%3E%3Cbody%3E%3Cscript%3E'
     53                        + encodeURIComponent(innerCode) +
     54                        '%3C%2Fscript%3E%3C%2Fbody%3E%3C%2Fhtml%3E'));
     55      frame.src = dataURL;
     56      document.body.appendChild(frame);
     57 
     58      const result = await promise;
     59      assert_equals(result, "NO_SHARED_STORAGE_WRITABLE_HEADER");
     60      await verifyKeyNotFoundForOrigin('hello', origin);
     61 
     62    }, 'shared storage iframe request disallowed in opaque origin from data URL');
     63  </script>
     64 </body>