<!DOCTYPE html>
<title>Service Worker: CSP control of fetch()</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="resources/test-helpers.sub.js?pipe=sub"></script>
<script>

function assert_resolves(promise, description) {
  return promise.catch(function(reason) {
      throw new Error(description + ' - ' + reason.message);
  });
}

function assert_rejects(promise, description) {
  return promise.then(
      function() { throw new Error(description); },
      function() {});
}

promise_test(function(t) {
    var SCOPE = 'resources/fetch-csp-iframe.html';
    var SCRIPT = 'resources/fetch-rewrite-worker.js';
    var host_info = get_host_info();
    var IMAGE_PATH =
        base_path() + 'resources/fetch-access-control.py?PNGIMAGE';
    var IMAGE_URL = host_info['HTTPS_ORIGIN'] + IMAGE_PATH;
    var REMOTE_IMAGE_URL = host_info['HTTPS_REMOTE_ORIGIN'] + IMAGE_PATH;
    var REDIRECT_URL =
        host_info['HTTPS_ORIGIN'] + base_path() + 'resources/redirect.py';
    var frame;

    return service_worker_unregister_and_register(t, SCRIPT, SCOPE)
      .then(function(registration) {
          return wait_for_state(t, registration.installing, 'activated');
        })
      .then(function() {
          return with_iframe(
              SCOPE + '?' +
              encodeURIComponent('img-src ' + host_info['HTTPS_ORIGIN'] +
                                 '; script-src \'unsafe-inline\''));
        })
      .then(function(f) {
          frame = f;
          return assert_resolves(
              frame.contentWindow.load_image(IMAGE_URL),
              'Allowed scope image resource should be loaded.');
        })
      .then(function() {
          return assert_rejects(
              frame.contentWindow.load_image(REMOTE_IMAGE_URL),
              'Disallowed scope image resource should not be loaded.');
        })
      .then(function() {
          return assert_resolves(
              frame.contentWindow.load_image(
                  // The request for IMAGE_URL will be fetched in SW.
                  './dummy?url=' + encodeURIComponent(IMAGE_URL)),
              'Allowed scope image resource which was fetched via SW should ' +
              'be loaded.');
        })
      .then(function() {
          return assert_rejects(
              frame.contentWindow.load_image(
                  // The request for REMOTE_IMAGE_URL will be fetched in SW.
                  './dummy?mode=no-cors&url=' +
                  encodeURIComponent(REMOTE_IMAGE_URL)),
              'Disallowed scope image resource which was fetched via SW ' +
              'should not be loaded.');
        })
      .then(function() {
          frame.remove();
          return with_iframe(
              SCOPE + '?' +
              encodeURIComponent(
                  'img-src ' + REDIRECT_URL +
                  '; script-src \'unsafe-inline\''));
        })
      .then(function(f) {
          frame = f;
          return assert_resolves(
              frame.contentWindow.load_image(
                  // Set 'ignore' not to call respondWith() in the SW.
                  REDIRECT_URL + '?ignore&Redirect=' +
                  encodeURIComponent(IMAGE_URL)),
              'When the request was redirected, CSP match algorithm should ' +
              'ignore the path component of the URL.');
        })
      .then(function() {
          return assert_resolves(
              frame.contentWindow.load_image(
                  // This request will be fetched via SW and redirected by
                  // redirect.php.
                  REDIRECT_URL + '?Redirect=' + encodeURIComponent(IMAGE_URL)),
              'When the request was redirected via SW, CSP match algorithm ' +
              'should ignore the path component of the URL.');
        })
      .then(function() {
          return assert_resolves(
              frame.contentWindow.load_image(
                  // The request for IMAGE_URL will be fetched in SW.
                  REDIRECT_URL + '?url=' + encodeURIComponent(IMAGE_URL)),
              'When the request was fetched via SW, CSP match algorithm ' +
              'should ignore the path component of the URL.');
        })
      .then(function() {
          frame.remove();
          service_worker_unregister_and_done(t, SCOPE);
        });
  }, 'Verify CSP control of fetch() in a Service Worker');
</script>