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-rw-r--r--netwerk/url-classifier/UrlClassifierFeatureTrackingAnnotation.cpp180
1 files changed, 180 insertions, 0 deletions
diff --git a/netwerk/url-classifier/UrlClassifierFeatureTrackingAnnotation.cpp b/netwerk/url-classifier/UrlClassifierFeatureTrackingAnnotation.cpp
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+++ b/netwerk/url-classifier/UrlClassifierFeatureTrackingAnnotation.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "UrlClassifierFeatureTrackingAnnotation.h"
+
+#include "Classifier.h"
+#include "mozilla/Logging.h"
+#include "mozilla/StaticPrefs_privacy.h"
+#include "mozilla/StaticPtr.h"
+#include "mozilla/net/UrlClassifierCommon.h"
+#include "nsIChannel.h"
+#include "nsIClassifiedChannel.h"
+#include "nsIWebProgressListener.h"
+#include "nsContentUtils.h"
+
+namespace mozilla {
+namespace net {
+
+namespace {
+
+#define TRACKING_ANNOTATION_FEATURE_NAME "tracking-annotation"
+
+#define URLCLASSIFIER_ANNOTATION_BLOCKLIST \
+ "urlclassifier.trackingAnnotationTable"
+#define URLCLASSIFIER_ANNOTATION_BLOCKLIST_TEST_ENTRIES \
+ "urlclassifier.trackingAnnotationTable.testEntries"
+#define URLCLASSIFIER_ANNOTATION_ENTITYLIST \
+ "urlclassifier.trackingAnnotationWhitelistTable"
+#define URLCLASSIFIER_ANNOTATION_ENTITYLIST_TEST_ENTRIES \
+ "urlclassifier.trackingAnnotationWhitelistTable.testEntries"
+#define URLCLASSIFIER_TRACKING_ANNOTATION_EXCEPTION_URLS \
+ "urlclassifier.trackingAnnotationSkipURLs"
+#define TABLE_ANNOTATION_BLOCKLIST_PREF "annotation-blacklist-pref"
+#define TABLE_ANNOTATION_ENTITYLIST_PREF "annotation-whitelist-pref"
+
+StaticRefPtr<UrlClassifierFeatureTrackingAnnotation> gFeatureTrackingAnnotation;
+
+} // namespace
+
+UrlClassifierFeatureTrackingAnnotation::UrlClassifierFeatureTrackingAnnotation()
+ : UrlClassifierFeatureBase(
+ nsLiteralCString(TRACKING_ANNOTATION_FEATURE_NAME),
+ nsLiteralCString(URLCLASSIFIER_ANNOTATION_BLOCKLIST),
+ nsLiteralCString(URLCLASSIFIER_ANNOTATION_ENTITYLIST),
+ nsLiteralCString(URLCLASSIFIER_ANNOTATION_BLOCKLIST_TEST_ENTRIES),
+ nsLiteralCString(URLCLASSIFIER_ANNOTATION_ENTITYLIST_TEST_ENTRIES),
+ nsLiteralCString(TABLE_ANNOTATION_BLOCKLIST_PREF),
+ nsLiteralCString(TABLE_ANNOTATION_ENTITYLIST_PREF),
+ nsLiteralCString(URLCLASSIFIER_TRACKING_ANNOTATION_EXCEPTION_URLS)) {}
+
+/* static */ const char* UrlClassifierFeatureTrackingAnnotation::Name() {
+ return TRACKING_ANNOTATION_FEATURE_NAME;
+}
+
+/* static */
+void UrlClassifierFeatureTrackingAnnotation::MaybeInitialize() {
+ MOZ_ASSERT(XRE_IsParentProcess());
+ UC_LOG_LEAK(("UrlClassifierFeatureTrackingAnnotation::MaybeInitialize"));
+
+ if (!gFeatureTrackingAnnotation) {
+ gFeatureTrackingAnnotation = new UrlClassifierFeatureTrackingAnnotation();
+ gFeatureTrackingAnnotation->InitializePreferences();
+ }
+}
+
+/* static */
+void UrlClassifierFeatureTrackingAnnotation::MaybeShutdown() {
+ UC_LOG_LEAK(("UrlClassifierFeatureTrackingAnnotation::MaybeShutdown"));
+
+ if (gFeatureTrackingAnnotation) {
+ gFeatureTrackingAnnotation->ShutdownPreferences();
+ gFeatureTrackingAnnotation = nullptr;
+ }
+}
+
+/* static */
+already_AddRefed<UrlClassifierFeatureTrackingAnnotation>
+UrlClassifierFeatureTrackingAnnotation::MaybeCreate(nsIChannel* aChannel) {
+ MOZ_ASSERT(aChannel);
+
+ UC_LOG_LEAK(
+ ("UrlClassifierFeatureTrackingAnnotation::MaybeCreate - channel %p",
+ aChannel));
+
+ if (!StaticPrefs::privacy_trackingprotection_annotate_channels()) {
+ return nullptr;
+ }
+
+ MaybeInitialize();
+ MOZ_ASSERT(gFeatureTrackingAnnotation);
+
+ RefPtr<UrlClassifierFeatureTrackingAnnotation> self =
+ gFeatureTrackingAnnotation;
+ return self.forget();
+}
+
+/* static */
+already_AddRefed<nsIUrlClassifierFeature>
+UrlClassifierFeatureTrackingAnnotation::GetIfNameMatches(
+ const nsACString& aName) {
+ if (!aName.EqualsLiteral(TRACKING_ANNOTATION_FEATURE_NAME)) {
+ return nullptr;
+ }
+
+ MaybeInitialize();
+ MOZ_ASSERT(gFeatureTrackingAnnotation);
+
+ RefPtr<UrlClassifierFeatureTrackingAnnotation> self =
+ gFeatureTrackingAnnotation;
+ return self.forget();
+}
+
+NS_IMETHODIMP
+UrlClassifierFeatureTrackingAnnotation::ProcessChannel(
+ nsIChannel* aChannel, const nsTArray<nsCString>& aList,
+ const nsTArray<nsCString>& aHashes, bool* aShouldContinue) {
+ NS_ENSURE_ARG_POINTER(aChannel);
+ NS_ENSURE_ARG_POINTER(aShouldContinue);
+
+ // This is not a blocking feature.
+ *aShouldContinue = true;
+
+ UC_LOG(
+ ("UrlClassifierFeatureTrackingAnnotation::ProcessChannel - "
+ "annotating channel %p",
+ aChannel));
+
+ static std::vector<UrlClassifierCommon::ClassificationData>
+ sClassificationData = {
+ {"ads-track-"_ns,
+ nsIClassifiedChannel::ClassificationFlags::CLASSIFIED_TRACKING_AD},
+ {"analytics-track-"_ns, nsIClassifiedChannel::ClassificationFlags::
+ CLASSIFIED_TRACKING_ANALYTICS},
+ {"social-track-"_ns, nsIClassifiedChannel::ClassificationFlags::
+ CLASSIFIED_TRACKING_SOCIAL},
+ {"content-track-"_ns, nsIClassifiedChannel::ClassificationFlags::
+ CLASSIFIED_TRACKING_CONTENT},
+ };
+
+ uint32_t flags = UrlClassifierCommon::TablesToClassificationFlags(
+ aList, sClassificationData,
+ nsIClassifiedChannel::ClassificationFlags::CLASSIFIED_TRACKING);
+
+ UrlClassifierCommon::SetTrackingInfo(aChannel, aList, aHashes);
+
+ uint32_t notification =
+ ((flags & nsIClassifiedChannel::ClassificationFlags::
+ CLASSIFIED_TRACKING_CONTENT) != 0)
+ ? nsIWebProgressListener::STATE_LOADED_LEVEL_2_TRACKING_CONTENT
+ : nsIWebProgressListener::STATE_LOADED_LEVEL_1_TRACKING_CONTENT;
+
+ UrlClassifierCommon::AnnotateChannel(aChannel, flags, notification);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+UrlClassifierFeatureTrackingAnnotation::GetURIByListType(
+ nsIChannel* aChannel, nsIUrlClassifierFeature::listType aListType,
+ nsIUrlClassifierFeature::URIType* aURIType, nsIURI** aURI) {
+ NS_ENSURE_ARG_POINTER(aChannel);
+ NS_ENSURE_ARG_POINTER(aURIType);
+ NS_ENSURE_ARG_POINTER(aURI);
+
+ if (aListType == nsIUrlClassifierFeature::blocklist) {
+ *aURIType = nsIUrlClassifierFeature::blocklistURI;
+ return aChannel->GetURI(aURI);
+ }
+
+ MOZ_ASSERT(aListType == nsIUrlClassifierFeature::entitylist);
+
+ *aURIType = nsIUrlClassifierFeature::pairwiseEntitylistURI;
+ return UrlClassifierCommon::CreatePairwiseEntityListURI(aChannel, aURI);
+}
+
+} // namespace net
+} // namespace mozilla