test_serial_security.html

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<!DOCTYPE HTML>

<html>

<head>

  <meta charset="utf-8">

  <title>Test Web Serial API - IPC Security Hardening</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script src="serial_test_utils.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>

</head>

<body>

<script>

"use strict";

SimpleTest.waitForExplicitFinish();

SimpleTest.registerCleanupFunction(async () => {

  await navigator.serial.resetToDefaultMockDevices();

  await cleanupSerialPorts();

});

// Test that opening a port whose device has been disconnected fails.

// This exercises the parent-side enumeration check in OpenRunnable that

// validates the portId against the currently-enumerated device list.

add_task(async function testOpenAfterDeviceRemoved() {

  await navigator.serial.removeAllMockDevices();

  await simulateDeviceConnection(

    "security-test-device", "/dev/ttySEC0", 0x2345, 0xBCDE

);

  SpecialPowers.wrap(document).notifyUserGestureActivation();

  const port = await navigator.serial.requestPort({ filters: [] });

  ok(port, "Should get a port");

  const info = port.getInfo();

  is(info.usbVendorId, 0x2345, "expected usbVendorId from port");

  is(info.usbProductId, 0xBCDE, "expected usbProductId from port");

  // Disconnect the device while we still hold the port reference.

  await navigator.serial.simulateDeviceDisconnection("security-test-device");

  // Opening should fail because the device is no longer enumerated.

  await Assert.rejects(

    port.open({ baudRate: 9600 }),

    /NetworkError/,

    "Opening a disconnected device should throw NetworkError"

);

  await navigator.serial.resetToDefaultMockDevices();

});

// Test that re-adding a device after disconnect allows reopening.

add_task(async function testReconnectAfterDisconnect() {

  await navigator.serial.removeAllMockDevices();

  await simulateDeviceConnection(

    "reconnect-device", "/dev/ttyRCN", 0x1111, 0x2222

);

  SpecialPowers.wrap(document).notifyUserGestureActivation();

  const port = await navigator.serial.requestPort({ filters: [] });

  // Disconnect and try to open - should fail.

  await navigator.serial.simulateDeviceDisconnection("reconnect-device");

  await Assert.rejects(

    port.open({ baudRate: 9600 }),

    /NetworkError/,

    "Should get NetworkError after disconnect"

);

  // Re-add the same device and request a new port - should work.

  await simulateDeviceConnection(

    "reconnect-device", "/dev/ttyRCN", 0x1111, 0x2222

);

  SpecialPowers.wrap(document).notifyUserGestureActivation();

  const port2 = await navigator.serial.requestPort({ filters: [] });

  await port2.open({ baudRate: 9600 });

  ok(true, "Should be able to open after device reconnects");

  await port2.close();

  await navigator.serial.resetToDefaultMockDevices();

});

</script>

</body>

</html>