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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()
: UrlClassifierFeatureAntiTrackingBase(
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
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