зеркало из https://github.com/mozilla/gecko-dev.git
196 строки
6.3 KiB
C++
196 строки
6.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "UrlClassifierFeatureTrackingProtection.h"
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#include "mozilla/AntiTrackingCommon.h"
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#include "mozilla/net/UrlClassifierCommon.h"
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#include "nsContentUtils.h"
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#include "nsIHttpChannelInternal.h"
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#include "nsILoadContext.h"
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#include "nsNetUtil.h"
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namespace mozilla {
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namespace net {
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namespace {
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#define TRACKING_PROTECTION_FEATURE_NAME "tracking-protection"
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#define URLCLASSIFIER_TRACKING_BLACKLIST "urlclassifier.trackingTable"
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#define URLCLASSIFIER_TRACKING_BLACKLIST_TEST_ENTRIES \
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"urlclassifier.trackingTable.testEntries"
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#define URLCLASSIFIER_TRACKING_WHITELIST "urlclassifier.trackingWhitelistTable"
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#define URLCLASSIFIER_TRACKING_WHITELIST_TEST_ENTRIES \
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"urlclassifier.trackingWhitelistTable.testEntries"
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#define URLCLASSIFIER_TRACKING_PROTECTION_SKIP_URLS \
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"urlclassifier.trackingSkipURLs"
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#define TABLE_TRACKING_BLACKLIST_PREF "tracking-blacklist-pref"
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#define TABLE_TRACKING_WHITELIST_PREF "tracking-whitelist-pref"
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StaticRefPtr<UrlClassifierFeatureTrackingProtection> gFeatureTrackingProtection;
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} // namespace
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UrlClassifierFeatureTrackingProtection::UrlClassifierFeatureTrackingProtection()
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: UrlClassifierFeatureBase(
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NS_LITERAL_CSTRING(TRACKING_PROTECTION_FEATURE_NAME),
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NS_LITERAL_CSTRING(URLCLASSIFIER_TRACKING_BLACKLIST),
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NS_LITERAL_CSTRING(URLCLASSIFIER_TRACKING_WHITELIST),
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NS_LITERAL_CSTRING(URLCLASSIFIER_TRACKING_BLACKLIST_TEST_ENTRIES),
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NS_LITERAL_CSTRING(URLCLASSIFIER_TRACKING_WHITELIST_TEST_ENTRIES),
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NS_LITERAL_CSTRING(TABLE_TRACKING_BLACKLIST_PREF),
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NS_LITERAL_CSTRING(TABLE_TRACKING_WHITELIST_PREF),
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NS_LITERAL_CSTRING(URLCLASSIFIER_TRACKING_PROTECTION_SKIP_URLS)) {}
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/* static */ const char* UrlClassifierFeatureTrackingProtection::Name() {
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return TRACKING_PROTECTION_FEATURE_NAME;
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}
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/* static */
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void UrlClassifierFeatureTrackingProtection::MaybeInitialize() {
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MOZ_ASSERT(XRE_IsParentProcess());
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UC_LOG(("UrlClassifierFeatureTrackingProtection: MaybeInitialize"));
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if (!gFeatureTrackingProtection) {
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gFeatureTrackingProtection = new UrlClassifierFeatureTrackingProtection();
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gFeatureTrackingProtection->InitializePreferences();
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}
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}
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/* static */
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void UrlClassifierFeatureTrackingProtection::MaybeShutdown() {
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UC_LOG(("UrlClassifierFeatureTrackingProtection: Shutdown"));
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if (gFeatureTrackingProtection) {
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gFeatureTrackingProtection->ShutdownPreferences();
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gFeatureTrackingProtection = nullptr;
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}
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}
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/* static */
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already_AddRefed<UrlClassifierFeatureTrackingProtection>
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UrlClassifierFeatureTrackingProtection::MaybeCreate(nsIChannel* aChannel) {
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MOZ_ASSERT(aChannel);
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UC_LOG(("UrlClassifierFeatureTrackingProtection: MaybeCreate for channel %p",
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aChannel));
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nsCOMPtr<nsILoadContext> loadContext;
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NS_QueryNotificationCallbacks(aChannel, loadContext);
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if (!loadContext || !loadContext->UseTrackingProtection()) {
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return nullptr;
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}
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nsCOMPtr<nsIURI> chanURI;
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nsresult rv = aChannel->GetURI(getter_AddRefs(chanURI));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return nullptr;
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}
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bool isThirdParty =
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nsContentUtils::IsThirdPartyWindowOrChannel(nullptr, aChannel, chanURI);
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if (!isThirdParty) {
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if (UC_LOG_ENABLED()) {
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nsCString spec = chanURI->GetSpecOrDefault();
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spec.Truncate(
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std::min(spec.Length(), UrlClassifierCommon::sMaxSpecLength));
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UC_LOG(
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("UrlClassifierFeatureTrackingProtection: Skipping tracking "
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"protection checks for first party or top-level load channel[%p] "
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"with uri %s",
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aChannel, spec.get()));
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}
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return nullptr;
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}
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if (!UrlClassifierCommon::ShouldEnableClassifier(aChannel)) {
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return nullptr;
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}
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MaybeInitialize();
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MOZ_ASSERT(gFeatureTrackingProtection);
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RefPtr<UrlClassifierFeatureTrackingProtection> self =
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gFeatureTrackingProtection;
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return self.forget();
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}
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/* static */
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already_AddRefed<nsIUrlClassifierFeature>
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UrlClassifierFeatureTrackingProtection::GetIfNameMatches(
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const nsACString& aName) {
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if (!aName.EqualsLiteral(TRACKING_PROTECTION_FEATURE_NAME)) {
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return nullptr;
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}
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MaybeInitialize();
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MOZ_ASSERT(gFeatureTrackingProtection);
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RefPtr<UrlClassifierFeatureTrackingProtection> self =
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gFeatureTrackingProtection;
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return self.forget();
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}
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NS_IMETHODIMP
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UrlClassifierFeatureTrackingProtection::ProcessChannel(
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nsIChannel* aChannel, const nsTArray<nsCString>& aList,
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const nsTArray<nsCString>& aHashes, bool* aShouldContinue) {
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NS_ENSURE_ARG_POINTER(aChannel);
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NS_ENSURE_ARG_POINTER(aShouldContinue);
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bool isAllowListed = UrlClassifierCommon::IsAllowListed(aChannel);
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// This is a blocking feature.
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*aShouldContinue = isAllowListed;
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if (isAllowListed) {
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return NS_OK;
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}
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nsAutoCString list;
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UrlClassifierCommon::TablesToString(aList, list);
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UrlClassifierCommon::SetBlockedContent(aChannel, NS_ERROR_TRACKING_URI, list,
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EmptyCString(), EmptyCString());
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UC_LOG(
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("UrlClassifierFeatureTrackingProtection::ProcessChannel, cancelling "
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"channel[%p]",
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aChannel));
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nsCOMPtr<nsIHttpChannelInternal> httpChannel = do_QueryInterface(aChannel);
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if (httpChannel) {
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Unused << httpChannel->CancelByURLClassifier(NS_ERROR_TRACKING_URI);
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} else {
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Unused << aChannel->Cancel(NS_ERROR_TRACKING_URI);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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UrlClassifierFeatureTrackingProtection::GetURIByListType(
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nsIChannel* aChannel, nsIUrlClassifierFeature::listType aListType,
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nsIUrlClassifierFeature::URIType* aURIType, nsIURI** aURI) {
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NS_ENSURE_ARG_POINTER(aChannel);
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NS_ENSURE_ARG_POINTER(aURIType);
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NS_ENSURE_ARG_POINTER(aURI);
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if (aListType == nsIUrlClassifierFeature::blacklist) {
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*aURIType = nsIUrlClassifierFeature::blacklistURI;
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return aChannel->GetURI(aURI);
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}
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MOZ_ASSERT(aListType == nsIUrlClassifierFeature::whitelist);
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*aURIType = nsIUrlClassifierFeature::pairwiseWhitelistURI;
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return UrlClassifierCommon::CreatePairwiseWhiteListURI(aChannel, aURI);
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}
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} // namespace net
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} // namespace mozilla
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