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Diffstat (limited to '')
-rw-r--r-- | toolkit/components/antitracking/test/browser/browser_fpiServiceWorkers_fingerprinting.js | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/toolkit/components/antitracking/test/browser/browser_fpiServiceWorkers_fingerprinting.js b/toolkit/components/antitracking/test/browser/browser_fpiServiceWorkers_fingerprinting.js new file mode 100644 index 0000000000..fcdc83cde6 --- /dev/null +++ b/toolkit/components/antitracking/test/browser/browser_fpiServiceWorkers_fingerprinting.js @@ -0,0 +1,90 @@ +/* import-globals-from storageAccessAPIHelpers.js */ + +// This test ensures that a service worker for an exempted domain is exempted when it is +// in the first party context, and not exempted when it is in a third party context. + +PartitionedStorageHelper.runTest( + "ServiceWorkers - Check that RFP correctly is exempted and not exempted when FPI is enabled", + async (win3rdParty, win1stParty, allowed) => { + // Quickly unset and reset these prefs so we can get the real navigator.hardwareConcurrency + // It can't be set enternally and then captured because this function gets stringified and then evaled in a new scope. + await SpecialPowers.pushPrefEnv({ + set: [ + ["privacy.firstParty.isolate", false], + ["privacy.resistFingerprinting", false], + ], + }); + + var SPOOFED_HW_CONCURRENCY = 2; + var DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency; + + await SpecialPowers.popPrefEnv(); + + // Register service worker for the first-party window. + if (!win1stParty.sw) { + win1stParty.sw = await registerServiceWorker( + win1stParty, + "serviceWorker.js" + ); + } + + // Register service worker for the third-party window. + if (!win3rdParty.sw) { + win3rdParty.sw = await registerServiceWorker( + win3rdParty, + "serviceWorker.js" + ); + } + + // Check DOM cache from the first-party service worker. + let res = await sendAndWaitWorkerMessage( + win1stParty.sw, + win1stParty.navigator.serviceWorker, + { type: "GetHWConcurrency" } + ); + console.info( + "First Party, got: " + + res.value + + " Expected: " + + DEFAULT_HARDWARE_CONCURRENCY + ); + is( + res.value, + DEFAULT_HARDWARE_CONCURRENCY, + "As a first party, HW Concurrency should not be spoofed" + ); + + // Check DOM cache from the third-party service worker. + res = await sendAndWaitWorkerMessage( + win3rdParty.sw, + win3rdParty.navigator.serviceWorker, + { type: "GetHWConcurrency" } + ); + console.info( + "Third Party, got: " + res.value + " Expected: " + SPOOFED_HW_CONCURRENCY + ); + is( + res.value, + SPOOFED_HW_CONCURRENCY, + "As a third party, HW Concurrency should be spoofed" + ); + }, + + async _ => { + await new Promise(resolve => { + Services.clearData.deleteData(Ci.nsIClearDataService.CLEAR_ALL, value => + resolve() + ); + }); + }, + + [ + ["dom.serviceWorkers.exemptFromPerDomainMax", true], + ["dom.ipc.processCount", 1], + ["dom.serviceWorkers.enabled", true], + ["dom.serviceWorkers.testing.enabled", true], + ["privacy.firstParty.isolate", true], + ["privacy.resistFingerprinting", true], + ["privacy.resistFingerprinting.exemptedDomains", "*.example.com"], + ] +); |