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July 2016

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[tor-browser/tor-browser-45.2.0esr-6.5-1] fixup! Bug #13749.2: Regression tests for first-party isolation of cache
by gk＠torproject.org 01 Jul '16

01 Jul '16

commit 8cfeded9b52a1bbc93622c6dbe6ca59f987b43c0 Author: Arthur Edelstein <arthuredelstein(a)gmail.com> Date: Mon Jun 6 15:26:48 2016 -0700 fixup! Bug #13749.2: Regression tests for first-party isolation of cache --- netwerk/test/browser/browser_cacheFirstParty.js | 70 ++++++++++++++++--------- netwerk/test/browser/firstPartyParent.html | 1 + 2 files changed, 45 insertions(+), 26 deletions(-) diff --git a/netwerk/test/browser/browser_cacheFirstParty.js b/netwerk/test/browser/browser_cacheFirstParty.js index 967c597..7e66726 100644 --- a/netwerk/test/browser/browser_cacheFirstParty.js +++ b/netwerk/test/browser/browser_cacheFirstParty.js @@ -27,6 +27,8 @@ Cu.import("resource://gre/modules/LoadContextInfo.jsm", tempScope); let LoadContextInfo = tempScope.LoadContextInfo; let thirdPartyUtil = Cc["@mozilla.org/thirdpartyutil;1"] .getService(Ci.mozIThirdPartyUtil); +let protocolProxyService = Cc["@mozilla.org/network/protocol-proxy-service;1"] + .getService(Ci.nsIProtocolProxyService); // __listen(target, eventType, timeoutMs, useCapture)__. // Calls addEventListener on target, with the given eventType. @@ -116,12 +118,12 @@ let privacyPref = "privacy.thirdparty.isolate", "request.html", "worker.request.html", "import.js"]; -// __checkCachePopulation(pref, numberOfDomains)__. +// __checkCachePopulation(isolate, numberOfDomains)__. // Check if the number of entries found in the cache for each // embedded file type matches the number we expect, given the // number of domains and the isolation state. -let checkCachePopulation = function* (pref, numberOfDomains) { - let expectedEntryCount = (pref === 2) ? numberOfDomains : 1; +let checkCachePopulation = function* (isolate, numberOfDomains) { + let expectedEntryCount = isolate ? numberOfDomains : 1; // Collect cache data. let data = yield cacheDataForContext(LoadContextInfo.default, 2000); data = data.concat(yield cacheDataForContext(LoadContextInfo.private, 2000)); @@ -148,17 +150,21 @@ let checkCachePopulation = function* (pref, numberOfDomains) { }; // __observeChannels(onChannel)__. -// onChannel is called for every http channel request. Returns a zero-arg stop() function. +// onChannel is called for every channel request. Returns a zero-arg stop() function. let observeChannels = function (onChannel) { - let channelObserver = { - observe: function(subject, topic, data) { - if (topic === "http-on-modify-request") { - onChannel(subject.QueryInterface(Components.interfaces.nsIHttpChannel)); - } + // We use a dummy proxy filter to catch all channels, even those that do not + // generate an "http-on-modify-request" notification, such as link preconnects. + let proxyFilter = { + applyFilter : function (aProxyService, aChannel, aProxy) { + // We have the channel; provide it to the callback. + onChannel(aChannel); + // Pass on aProxy unmodified. + return aProxy; } }; - Services.obs.addObserver(channelObserver, "http-on-modify-request", /* ownsWeak */ false); - return function () { Services.obs.removeObserver(channelObserver, "http-on-modify-request"); }; + protocolProxyService.registerChannelFilter(proxyFilter, 0); + // Return the stop() function: + return () => protocolProxyService.unregisterChannelFilter(proxyFilter); }; // __channelFirstPartyHost(aChannel)__. @@ -170,28 +176,38 @@ let channelFirstPartyHost = function (aChannel) { return thirdPartyUtil.getFirstPartyHostForIsolation(firstPartyURI); } -// The main testing function. -// Launch a Task.jsm coroutine so we can open tabs and wait for each of them to open, -// one by one. -add_task(function* () { - // Here we check to see if each channel has the correct first party assigned. - // All "thirdPartyChild" resources are loaded from a third-party - // "example.net" host, but they should all report either an "example.com" - // or an "example.org" first-party domain. +// __startObservingChannels()__. +// Checks to see if each channel has the correct first party assigned. +// All "thirdPartyChild" resources are loaded from a third-party +// "example.net" host, but they should all report either an "example.com" +// or an "example.org" first-party domain. Returns a stop() function. +let startObservingChannels = function() { let stopObservingChannels = observeChannels(function (channel) { - if (channel.originalURI.spec.contains("thirdPartyChild")) { + let originalURISpec = channel.originalURI.spec; + if (originalURISpec.contains("example.net")) { let firstPartyHost = channelFirstPartyHost(channel); - ok(firstPartyHost === "example.com" || firstPartyHost === "example.org", "first party is " + firstPartyHost); + ok(firstPartyHost === "example.com" || firstPartyHost === "example.org", "first party for " + originalURISpec + " is " + firstPartyHost); } }); + return stopObservingChannels; +}; + +// The main testing function. +// Launch a Task.jsm coroutine so we can open tabs and wait for each of them to open, +// one by one. +add_task(function* () { // Keep original pref value for restoring after the tests. let originalPrefValue = Services.prefs.getIntPref(privacyPref); // Test the pref with both values: 2 (isolating by first party) or 0 (not isolating) - for (let pref of [2, 0]) { + for (let isolate of [true, false]) { + let stopObservingChannels; + if (isolate) { + stopObservingChannels = startObservingChannels(); + } // Clear the cache. Services.cache2.clear(); // Set the pref to desired value - Services.prefs.setIntPref(privacyPref, pref); + Services.prefs.setIntPref(privacyPref, isolate ? 2 : 0); // Open test tabs let tabs = []; for (let domain of duplicatedDomains) { @@ -199,13 +215,15 @@ add_task(function* () { tabs.push(yield loadURLinNewTab("http://" + domain + ".example.org" + grandParentPage)); } // Run checks to make sure cache has expected number of entries for - // the chosen pref state. + // the chosen isolation state. let firstPartyDomainCount = 2; // example.com and example.org - yield checkCachePopulation(pref, firstPartyDomainCount); + yield checkCachePopulation(isolate, firstPartyDomainCount); // Clean up by removing tabs. tabs.forEach(tab => gBrowser.removeTab(tab)); + if (isolate) { + stopObservingChannels(); + } } - stopObservingChannels(); // Restore the pref to its original value. Services.prefs.setIntPref(privacyPref, originalPrefValue); }); diff --git a/netwerk/test/browser/firstPartyParent.html b/netwerk/test/browser/firstPartyParent.html index fa29a74..ba1248f 100644 --- a/netwerk/test/browser/firstPartyParent.html +++ b/netwerk/test/browser/firstPartyParent.html @@ -7,6 +7,7 @@ href="http://example.net/browser/netwerk/test/browser/thirdPartyChild.link.css"> <link rel="icon" type="image/ico" href="http://example.net/browser/netwerk/test/browser/thirdPartyChild.favicon.ico"> + <link rel="preconnect" href="http://example.net"> </head> <body> <div>firstPartyParent.html</div>

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