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Test Info: Warnings
- This test gets skipped with pattern: os == 'android'
- Manifest: browser/components/resistfingerprinting/test/mochitest/mochitest.toml
<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<meta charset="utf-8">
<title>Test for Pointer Events spoofing</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<div id="target0" style="width: 50px; height: 50px; background: green"></div>
<div id="target1" style="width: 50px; height: 50px; background: black"></div>
<script type="application/javascript">
SimpleTest.waitForExplicitFinish();
const { AppConstants } = SpecialPowers.ChromeUtils.importESModule(
"resource://gre/modules/AppConstants.sys.mjs"
);
var target0 = window.document.getElementById("target0");
var target1 = window.document.getElementById("target1");
var utils = SpecialPowers.Ci.nsIDOMWindowUtils;
// A helper function to check that whether the pointer is spoofed correctly.
function checkPointerEvent(aEvent) {
is(aEvent.width, 1, "The spoofed pointer event should always have width as 1.");
is(aEvent.height, 1, "The spoofed pointer event should always have width as 1.");
if (aEvent.buttons === 0) {
is(aEvent.pressure, 0.0,
"The spoofed pointer event should have pressure as 0.0 if it is not in a active buttons state.");
} else {
is(aEvent.pressure, 0.5,
"The spoofed pointer event should have pressure as 0.5 if it is in a active buttons state.");
}
is(aEvent.tangentialPressure, 0, "The spoofed pointer event should always have tangentialPressure as 0.");
is(aEvent.tiltX, 0, "The spoofed pointer event should always have tiltX as 0.");
is(aEvent.tiltY, 0, "The spoofed pointer event should always have tiltY as 0.");
is(aEvent.twist, 0, "The spoofed pointer event should always have twist as 0.");
if (AppConstants.platform == "macosx") {
is(aEvent.pointerId, utils.DEFAULT_MOUSE_POINTER_ID,
"The spoofed pointer event should always have the mouse pointer id.");
is(aEvent.pointerType, "mouse", "The spoofed pointer event should always has mouse pointerType.");
is(aEvent.isPrimary, true, "The spoofed pointer event should only receive primary pointer events.");
}
}
// A helper function to create a promise for waiting the event.
function promiseForEvent(aEventType, aCheckFunc) {
return new Promise(resolve => {
target0.addEventListener(aEventType, (event) => {
is(event.type, aEventType, "receive " + event.type + " on target0");
aCheckFunc(event);
resolve();
}, { once: true });
});
}
// A test for pointer events from touch interface.
async function doTestForTouchPointerEvent() {
let eventPromises = [
promiseForEvent("pointerover", checkPointerEvent),
promiseForEvent("pointerenter", checkPointerEvent),
promiseForEvent("pointerdown", checkPointerEvent),
promiseForEvent("pointermove", checkPointerEvent),
promiseForEvent("pointerup", checkPointerEvent),
promiseForEvent("pointerout", checkPointerEvent),
promiseForEvent("pointerleave", checkPointerEvent),
];
synthesizeMouse(target0, 5, 5, { type: "mousedown", inputSource: MouseEvent.MOZ_SOURCE_TOUCH, pressure: 0.75 });
synthesizeMouse(target0, 5, 5, { type: "mousemove", inputSource: MouseEvent.MOZ_SOURCE_TOUCH, pressure: 0.75 });
synthesizeMouse(target0, 5, 5, { type: "mouseup", inputSource: MouseEvent.MOZ_SOURCE_TOUCH, pressure: 0.75 });
await Promise.all(eventPromises);
}
// A test for pointercancel event.
async function doTestForTouchPointerCancelEvent() {
let eventPromises = [
promiseForEvent("pointerover", checkPointerEvent),
promiseForEvent("pointerenter", checkPointerEvent),
promiseForEvent("pointerdown", checkPointerEvent),
promiseForEvent("pointermove", checkPointerEvent),
promiseForEvent("pointercancel", checkPointerEvent),
promiseForEvent("pointerout", checkPointerEvent),
promiseForEvent("pointerleave", checkPointerEvent),
];
synthesizeTouch(target0, 5, 5, { type: "touchstart" });
synthesizeTouch(target0, 6, 6, { type: "touchmove" });
synthesizeTouch(target0, 6, 6, { type: "touchcancel" });
await Promise.all(eventPromises);
}
// A test for pointer events from pen interface.
async function doTestForPenPointerEvent() {
let eventPromises = [
promiseForEvent("pointerover", checkPointerEvent),
promiseForEvent("pointerenter", checkPointerEvent),
promiseForEvent("pointerdown", checkPointerEvent),
promiseForEvent("pointermove", checkPointerEvent),
promiseForEvent("pointerup", checkPointerEvent),
promiseForEvent("pointerout", checkPointerEvent),
promiseForEvent("pointerleave", checkPointerEvent),
];
synthesizeMouse(target0, 5, 5, { type: "mousedown", inputSource: MouseEvent.MOZ_SOURCE_PEN });
synthesizeMouse(target0, 5, 5, { type: "mousemove", inputSource: MouseEvent.MOZ_SOURCE_PEN });
synthesizeMouse(target0, 5, 5, { type: "mouseup", inputSource: MouseEvent.MOZ_SOURCE_PEN });
synthesizeMouse(target1, 5, 5, { type: "mousemove", inputSource: MouseEvent.MOZ_SOURCE_PEN });
await Promise.all(eventPromises);
}
// A test for gotpointercapture and lostpointercapture events.
// We would also test releasePointerCapture for only accepting spoofed pointer
// Id here.
async function doTestForPointerCapture() {
// We test for both mouse and touch to see whether the capture events are
// filed properly. We don't check pen here since it won't file capture
// events.
let inputSources = [ MouseEvent.MOZ_SOURCE_MOUSE,
MouseEvent.MOZ_SOURCE_TOUCH ];
for (let inputSource of inputSources) {
function eventHandler(event) {
checkPointerEvent(event);
if (event.type === "pointerdown") {
target0.setPointerCapture(event.pointerId);
} else if (event.type === "pointermove") {
if (inputSource === MouseEvent.MOZ_SOURCE_TOUCH) {
try {
target0.releasePointerCapture(utils.DEFAULT_TOUCH_POINTER_ID);
ok(false, "The releasePointerCapture should fail here, but it is not.");
} catch (e) {
ok(true, "The releasePointerCapture fails properly.");
}
}
target0.releasePointerCapture(event.pointerId);
}
}
let eventPromises = [
promiseForEvent("pointerover", eventHandler),
promiseForEvent("pointerenter", eventHandler),
promiseForEvent("pointerdown", eventHandler),
promiseForEvent("gotpointercapture", eventHandler),
promiseForEvent("pointermove", eventHandler),
promiseForEvent("lostpointercapture", eventHandler),
promiseForEvent("pointerup", eventHandler),
promiseForEvent("pointerout", eventHandler),
promiseForEvent("pointerleave", eventHandler),
];
synthesizeMouse(target0, 5, 5, { type: "mousedown", inputSource });
synthesizeMouse(target0, 5, 5, { type: "mousemove", inputSource });
synthesizeMouse(target0, 5, 5, { type: "mouseup", inputSource });
synthesizeMouse(target1, 5, 5, { type: "mousemove", inputSource });
await Promise.all(eventPromises);
}
}
// A test for setPointerCapture() for only accepting spoofed pointer id.
async function doTestForSetPointerCapture() {
function eventHandler(event) {
checkPointerEvent(event);
if (event.type === "pointerdown") {
try {
target0.setPointerCapture(utils.DEFAULT_TOUCH_POINTER_ID);
ok(false, "The setPointerCapture should fail here, but it is not.");
} catch (e) {
ok(true, "The setPointerCapture fails properly.");
}
}
}
let eventPromises = [
promiseForEvent("pointerover", eventHandler),
promiseForEvent("pointerenter", eventHandler),
promiseForEvent("pointerdown", eventHandler),
promiseForEvent("pointermove", eventHandler),
promiseForEvent("pointerup", eventHandler),
promiseForEvent("pointerout", eventHandler),
promiseForEvent("pointerleave", eventHandler),
];
synthesizeMouse(target0, 5, 5, { type: "mousedown", inputSource: MouseEvent.MOZ_SOURCE_TOUCH });
synthesizeMouse(target0, 5, 5, { type: "mousemove", inputSource: MouseEvent.MOZ_SOURCE_TOUCH });
synthesizeMouse(target0, 5, 5, { type: "mouseup", inputSource: MouseEvent.MOZ_SOURCE_TOUCH });
await Promise.all(eventPromises);
}
// A test for assuring that script generated events won't be spoofed.
function doTestNoSpoofingForScriptGeneratedEvent() {
return new Promise(resolve => {
// Generate a custom pointer event by script.
let pointerEventCustom = new PointerEvent("pointerover", {
pointerId: utils.DEFAULT_TOUCH_POINTER_ID,
pointerType: "touch",
width: 5,
height: 5,
pressure: 0.75,
tangentialPressure: 0.5,
isPrimary: false,
});
target0.addEventListener("pointerover", (event) => {
// Check that script generated event is not spoofed.
is(event.pointerType, "touch", "The pointerEvent.pointerType is not spoofed.");
is(event.width, 5, "The pointerEvent.width is not spoofed.");
is(event.height, 5, "The pointerEvent.height is not spoofed.");
is(event.pressure, 0.75, "The pointerEvent.pressure is not spoofed.");
is(event.tangentialPressure, 0.5, "The pointerEvent.tangentialPressure is not spoofed.");
is(event.isPrimary, false, "The pointerEvent.isPrimary is not spoofed.");
resolve();
}, { once: true });
target0.dispatchEvent(pointerEventCustom);
});
}
async function doTests() {
await doTestForTouchPointerEvent();
await doTestForTouchPointerCancelEvent();
await doTestForPenPointerEvent();
await doTestForPointerCapture();
await doTestForSetPointerCapture();
await doTestNoSpoofingForScriptGeneratedEvent();
SimpleTest.finish();
}
SimpleTest.waitForFocus(() => {
SpecialPowers.pushPrefEnv({"set": [["privacy.resistFingerprinting", true]]},
doTests);
});
</script>
</body>
</html>