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Test Info: Errors
- This test failed 9 times in the preceding 30 days. quicksearch this test
- Manifest: browser/components/resistfingerprinting/test/browser/browser.toml
/**
* UTC timezone after fingerprinting resistance is enabled.
*/
async function verifySpoofed() {
ok(true, "Running on " + content.location.origin);
SpecialPowers.Cu.getJSTestingFunctions().setTimeZone("PST8PDT");
is(
Intl.DateTimeFormat("en-US").resolvedOptions().timeZone,
"PST8PDT",
"Default time zone should have changed"
);
// Running in content:
function test() {
let date = new Date();
ok(
date.toString().endsWith("(Coordinated Universal Time)"),
"The date toString() is in UTC timezone."
);
ok(
date.toTimeString().endsWith("(Coordinated Universal Time)"),
"The date toTimeString() is in UTC timezone."
);
let dateTimeFormat = Intl.DateTimeFormat("en-US", {
dateStyle: "full",
timeStyle: "full",
});
is(
dateTimeFormat.resolvedOptions().timeZone,
"UTC",
"The Intl.DateTimeFormat is in UTC timezone."
);
ok(
dateTimeFormat.format(date).endsWith("Coordinated Universal Time"),
"The Intl.DateTimeFormat is formatting with the UTC timezone."
);
is(
date.getFullYear(),
date.getUTCFullYear(),
"The full year reports in UTC timezone."
);
is(
date.getMonth(),
date.getUTCMonth(),
"The month reports in UTC timezone."
);
is(date.getDate(), date.getUTCDate(), "The month reports in UTC timezone.");
is(date.getDay(), date.getUTCDay(), "The day reports in UTC timezone.");
is(
date.getHours(),
date.getUTCHours(),
"The hours reports in UTC timezone."
);
is(date.getTimezoneOffset(), 0, "The difference with UTC timezone is 0.");
let parser = new DOMParser();
let doc = parser.parseFromString("<p></p>", "text/html");
let lastModified = new Date(
doc.lastModified.replace(/(\d{2})\/(\d{2})\/(\d{4})/, "$3-$1-$2")
);
// Use ceil to account for the time passed to run the other statements
let offset = Math.ceil((lastModified - new Date()) / 1000);
is(offset, 0, "document.lastModified does not leak the timezone.");
}
// Run test in the context of the page.
Cu.exportFunction(is, content, { defineAs: "is" });
Cu.exportFunction(ok, content, { defineAs: "ok" });
content.eval(`(${test})()`);
}
add_task(async function test_timezone() {
await SpecialPowers.pushPrefEnv({
set: [["privacy.resistFingerprinting", true]],
});
// Load a page and verify the timezone.
let tab = await BrowserTestUtils.openNewForegroundTab({
gBrowser,
opening: TEST_PATH + "file_dummy.html",
forceNewProcess: true,
});
await SpecialPowers.spawn(tab.linkedBrowser, [], verifySpoofed);
BrowserTestUtils.removeTab(tab);
await SpecialPowers.popPrefEnv();
});
// Verify that exempted domain is not spoofed.
add_task(async function test_timezone_exempt() {
await SpecialPowers.pushPrefEnv({
set: [
["privacy.resistFingerprinting.exemptedDomains", "example.net"],
["privacy.resistFingerprinting", true],
],
});
let tab = await BrowserTestUtils.openNewForegroundTab({
gBrowser,
opening: TEST_PATH + "file_dummy.html",
forceNewProcess: true,
});
await SpecialPowers.spawn(tab.linkedBrowser, [], async function () {
SpecialPowers.Cu.getJSTestingFunctions().setTimeZone("PST8PDT");
is(
Intl.DateTimeFormat("en-US").resolvedOptions().timeZone,
"PST8PDT",
"Default time zone should have changed"
);
function test() {
let date = new Date(0);
ok(
date.toString().endsWith("(Pacific Standard Time)"),
"The date toString() is in PT timezone"
);
is(
Intl.DateTimeFormat("en-US").resolvedOptions().timeZone,
"PST8PDT",
"Content should use default time zone"
);
}
// Run test in the context of the page.
Cu.exportFunction(is, content, { defineAs: "is" });
Cu.exportFunction(ok, content, { defineAs: "ok" });
content.eval(`(${test})()`);
});
BrowserTestUtils.removeTab(tab);
await SpecialPowers.popPrefEnv();
});
// Verify that we are still spoofing for domains not `exemptedDomains` list.
add_task(async function test_timezone_exempt_wrong_domain() {
await SpecialPowers.pushPrefEnv({
set: [
["privacy.resistFingerprinting.exemptedDomains", "example.net"],
["privacy.resistFingerprinting", true],
],
});
let tab = await BrowserTestUtils.openNewForegroundTab({
gBrowser,
opening:
TEST_PATH.replace("example.net", "example.org") + "file_dummy.html",
forceNewProcess: true,
});
await SpecialPowers.spawn(tab.linkedBrowser, [], verifySpoofed);
BrowserTestUtils.removeTab(tab);
await SpecialPowers.popPrefEnv();
});
add_task(async function test_timezone_exmpt_browser() {
SpecialPowers.Cu.getJSTestingFunctions().setTimeZone("PST8PDT");
is(
Intl.DateTimeFormat("en-US").resolvedOptions().timeZone,
"PST8PDT",
"Default time zone should have changed"
);
await SpecialPowers.pushPrefEnv({
set: [["privacy.resistFingerprinting", true]],
});
is(
Intl.DateTimeFormat("en-US").resolvedOptions().timeZone,
"PST8PDT",
"Timezone in chrome should be unaffected by resistFingerprinting"
);
let newWindow = Services.ww.openWindow(
null,
AppConstants.BROWSER_CHROME_URL,
"_blank",
"chrome,dialog=no,all,alwaysRaised",
null
);
is(
newWindow.Intl.DateTimeFormat("en-US").resolvedOptions().timeZone,
"PST8PDT",
"Timezone in new chrome window should be unaffected by resistFingerprinting"
);
newWindow.close();
await SpecialPowers.popPrefEnv();
// Reset timezone
SpecialPowers.Cu.getJSTestingFunctions().setTimeZone(undefined);
});