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https://bugzilla.mozilla.org/show_bug.cgi?id=402788
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  <title>Test for Bug 402788</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=402788">Mozilla Bug 402788</a>
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/** Test for Bug 402788 */
  SimpleTest.waitForExplicitFinish();

  // return false if an exception has been catched, true otherwise
  function testRegisterHandler(aIsProtocol, aTxt, aUri, aTitle) {
    try {
      navigator.registerProtocolHandler(aTxt, aUri, aTitle);
    } catch (e) {
      return false;
    }

    return true;
  }

  // helper function to build URLs since hostname differs
  // based on whether the test is running in a cross-origin  iframe
  function buildUrl(protocol="http", addFormat=true) {
    return `${protocol}://${window.location.hostname}:${window.location.port}${addFormat ? "/%s" : "/"}`;
  }

  async function tests() {
    await SpecialPowers.pushPrefEnv({
      set: [
        ["dom.registerProtocolHandler.insecure.enabled", true],
      ],
    });

    // testing a generic case
    is(testRegisterHandler(true, "web+foo", buildUrl(), "Foo handler"), true, "registering a web+foo protocol handler should work");

    // testing with wrong uris
    is(testRegisterHandler(true, "web+foo", buildUrl("http", false), "Foo handler"), false, "a protocol handler uri should contain %s");

    // the spec explicitly allows relative urls to be passed
    is(testRegisterHandler(true, "web+foo", "foo/%s", "Foo handler"), true, "a protocol handler uri should be valid");

    // we should only accept to register when the handler has the same host as the current page (bug 402287)
    is(testRegisterHandler(true, "fweb+oo", "http://remotehost:8888/%s", "Foo handler"), false, "registering a web+foo protocol handler with a different host should not work");

    // restriction to http(s) for the uri of the handler (bug 401343)
    // http is already tested in the generic case
    // ftp should not work
    is(testRegisterHandler(true, "web+foo", buildUrl("ftp"), "Foo handler"), false, "registering a web+foo protocol handler with ftp scheme should not work");
    // chrome should not work
    is(testRegisterHandler(true, "web+foo", buildUrl("chrome"), "Foo handler"), false, "registering a web+foo protocol handler with chrome scheme should not work");
    // foo should not work
    is(testRegisterHandler(true, "web+foo", buildUrl("foo"), "Foo handler"), false, "registering a web+foo protocol handler with foo scheme should not work");

    // for security reasons, protocol handlers should never be registered for some schemes (chrome, vbscript, ...) (bug 402788)
    is(testRegisterHandler(true, "chrome", buildUrl(), "chrome handler"), false, "registering a chrome protocol handler should not work");
    is(testRegisterHandler(true, "vbscript", buildUrl(), "vbscript handler"), false, "registering a vbscript protocol handler should not work");
    is(testRegisterHandler(true, "javascript", buildUrl(), "javascript handler"), false, "registering a javascript protocol handler should not work");
    is(testRegisterHandler(true, "moz-icon", buildUrl(), "moz-icon handler"), false, "registering a moz-icon protocol handler should not work");

    // registering anything not on the list of safe schemes and unprefixed by web+ shouldn't work
    is(testRegisterHandler(true, "foo", buildUrl(), "chrome handler"), false, "registering a foo protocol handler should not work");
    is(testRegisterHandler(true, "web+", buildUrl(), "chrome handler"), false, "registering a 'web+' protocol handler should not work");
    is(testRegisterHandler(true, "web+1", buildUrl(), "chrome handler"), false, "registering a 'web+1' protocol handler should not work");


    SimpleTest.finish();
  }

  tests();

</script>
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