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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
commit0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch)
treea31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /toolkit/components/antitracking/ContentBlockingNotifier.cpp
parentInitial commit. (diff)
downloadfirefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz
firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'toolkit/components/antitracking/ContentBlockingNotifier.cpp')
-rw-r--r--toolkit/components/antitracking/ContentBlockingNotifier.cpp567
1 files changed, 567 insertions, 0 deletions
diff --git a/toolkit/components/antitracking/ContentBlockingNotifier.cpp b/toolkit/components/antitracking/ContentBlockingNotifier.cpp
new file mode 100644
index 0000000000..5de57f91b2
--- /dev/null
+++ b/toolkit/components/antitracking/ContentBlockingNotifier.cpp
@@ -0,0 +1,567 @@
+/* -*- 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 "AntiTrackingLog.h"
+#include "ContentBlockingNotifier.h"
+#include "AntiTrackingUtils.h"
+
+#include "mozilla/EventQueue.h"
+#include "mozilla/StaticPrefs_privacy.h"
+#include "mozilla/dom/BrowserChild.h"
+#include "mozilla/dom/BrowsingContext.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/dom/ContentParent.h"
+#include "mozilla/dom/WindowGlobalParent.h"
+#include "nsIClassifiedChannel.h"
+#include "nsIRunnable.h"
+#include "nsIScriptError.h"
+#include "nsIURI.h"
+#include "nsIOService.h"
+#include "nsGlobalWindowInner.h"
+#include "nsJSUtils.h"
+#include "mozIThirdPartyUtil.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+using mozilla::dom::BrowsingContext;
+using mozilla::dom::ContentChild;
+using mozilla::dom::Document;
+
+static const uint32_t kMaxConsoleOutputDelayMs = 100;
+
+namespace {
+
+void RunConsoleReportingRunnable(already_AddRefed<nsIRunnable>&& aRunnable) {
+ if (StaticPrefs::privacy_restrict3rdpartystorage_console_lazy()) {
+ nsresult rv = NS_DispatchToCurrentThreadQueue(std::move(aRunnable),
+ kMaxConsoleOutputDelayMs,
+ EventQueuePriority::Idle);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return;
+ }
+ } else {
+ nsCOMPtr<nsIRunnable> runnable(std::move(aRunnable));
+ nsresult rv = runnable->Run();
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return;
+ }
+ }
+}
+
+void ReportUnblockingToConsole(
+ uint64_t aWindowID, nsIPrincipal* aPrincipal,
+ const nsAString& aTrackingOrigin,
+ ContentBlockingNotifier::StorageAccessPermissionGrantedReason aReason) {
+ MOZ_ASSERT(aWindowID);
+ MOZ_ASSERT(aPrincipal);
+
+ nsAutoString sourceLine;
+ uint32_t lineNumber = 0, columnNumber = 0;
+ JSContext* cx = nsContentUtils::GetCurrentJSContext();
+ if (cx) {
+ nsJSUtils::GetCallingLocation(cx, sourceLine, &lineNumber, &columnNumber);
+ }
+
+ nsCOMPtr<nsIPrincipal> principal(aPrincipal);
+ nsAutoString trackingOrigin(aTrackingOrigin);
+
+ RefPtr<Runnable> runnable = NS_NewRunnableFunction(
+ "ReportUnblockingToConsoleDelayed",
+ [aWindowID, sourceLine, lineNumber, columnNumber, principal,
+ trackingOrigin, aReason]() {
+ const char* messageWithSameOrigin = nullptr;
+
+ switch (aReason) {
+ case ContentBlockingNotifier::eStorageAccessAPI:
+ case ContentBlockingNotifier::ePrivilegeStorageAccessForOriginAPI:
+ messageWithSameOrigin = "CookieAllowedForOriginByStorageAccessAPI";
+ break;
+
+ case ContentBlockingNotifier::eOpenerAfterUserInteraction:
+ [[fallthrough]];
+ case ContentBlockingNotifier::eOpener:
+ messageWithSameOrigin = "CookieAllowedForOriginByHeuristic";
+ break;
+ }
+
+ nsAutoString origin;
+ nsresult rv = nsContentUtils::GetUTFOrigin(principal, origin);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return;
+ }
+
+ // Not adding grantedOrigin yet because we may not want it later.
+ AutoTArray<nsString, 2> params = {origin, trackingOrigin};
+
+ nsAutoString errorText;
+ rv = nsContentUtils::FormatLocalizedString(
+ nsContentUtils::eNECKO_PROPERTIES, messageWithSameOrigin, params,
+ errorText);
+ NS_ENSURE_SUCCESS_VOID(rv);
+
+ nsContentUtils::ReportToConsoleByWindowID(
+ errorText, nsIScriptError::warningFlag,
+ ANTITRACKING_CONSOLE_CATEGORY, aWindowID, nullptr, sourceLine,
+ lineNumber, columnNumber);
+ });
+
+ RunConsoleReportingRunnable(runnable.forget());
+}
+
+void ReportBlockingToConsole(uint64_t aWindowID, nsIURI* aURI,
+ uint32_t aRejectedReason) {
+ MOZ_ASSERT(aWindowID);
+ MOZ_ASSERT(aURI);
+ MOZ_ASSERT(
+ aRejectedReason == 0 ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_BY_PERMISSION) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_TRACKER) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_SOCIALTRACKER) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_PARTITIONED_FOREIGN) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_ALL) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_FOREIGN));
+
+ if (aURI->SchemeIs("chrome") || aURI->SchemeIs("about")) {
+ return;
+ }
+ bool hasFlags;
+ nsresult rv = NS_URIChainHasFlags(
+ aURI, nsIProtocolHandler::URI_FORBIDS_COOKIE_ACCESS, &hasFlags);
+ if (NS_FAILED(rv) || hasFlags) {
+ // If the protocol doesn't support cookies, no need to report them blocked.
+ return;
+ }
+
+ nsAutoString sourceLine;
+ uint32_t lineNumber = 0, columnNumber = 0;
+ JSContext* cx = nsContentUtils::GetCurrentJSContext();
+ if (cx) {
+ nsJSUtils::GetCallingLocation(cx, sourceLine, &lineNumber, &columnNumber);
+ }
+
+ nsCOMPtr<nsIURI> uri(aURI);
+
+ RefPtr<Runnable> runnable = NS_NewRunnableFunction(
+ "ReportBlockingToConsoleDelayed", [aWindowID, sourceLine, lineNumber,
+ columnNumber, uri, aRejectedReason]() {
+ const char* message = nullptr;
+ nsAutoCString category;
+ // When changing this list, please make sure to update the corresponding
+ // code in antitracking_head.js (inside _createTask).
+ // XXX: The nsIWebProgressListener constants below are interpreted as
+ // signed integers on Windows and the compiler complains that they can't
+ // be narrowed to uint32_t. To prevent this, we cast them to uint32_t.
+ switch (aRejectedReason) {
+ case uint32_t(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_BY_PERMISSION):
+ message = "CookieBlockedByPermission";
+ category = "cookieBlockedPermission"_ns;
+ break;
+
+ case uint32_t(nsIWebProgressListener::STATE_COOKIES_BLOCKED_TRACKER):
+ message = "CookieBlockedTracker";
+ category = "cookieBlockedTracker"_ns;
+ break;
+
+ case uint32_t(nsIWebProgressListener::STATE_COOKIES_BLOCKED_ALL):
+ message = "CookieBlockedAll";
+ category = "cookieBlockedAll"_ns;
+ break;
+
+ case uint32_t(nsIWebProgressListener::STATE_COOKIES_BLOCKED_FOREIGN):
+ message = "CookieBlockedForeign";
+ category = "cookieBlockedForeign"_ns;
+ break;
+
+ case uint32_t(
+ nsIWebProgressListener::STATE_COOKIES_PARTITIONED_FOREIGN):
+ message = "CookiePartitionedForeign2";
+ category = "cookiePartitionedForeign"_ns;
+ break;
+
+ default:
+ return;
+ }
+
+ MOZ_ASSERT(message);
+
+ // Strip the URL of any possible username/password and make it ready
+ // to be presented in the UI.
+ nsCOMPtr<nsIURI> exposableURI =
+ net::nsIOService::CreateExposableURI(uri);
+ AutoTArray<nsString, 1> params;
+ CopyUTF8toUTF16(exposableURI->GetSpecOrDefault(),
+ *params.AppendElement());
+
+ nsAutoString errorText;
+ nsresult rv = nsContentUtils::FormatLocalizedString(
+ nsContentUtils::eNECKO_PROPERTIES, message, params, errorText);
+ NS_ENSURE_SUCCESS_VOID(rv);
+
+ nsContentUtils::ReportToConsoleByWindowID(
+ errorText, nsIScriptError::warningFlag, category, aWindowID,
+ nullptr, sourceLine, lineNumber, columnNumber);
+ });
+
+ RunConsoleReportingRunnable(runnable.forget());
+}
+
+void ReportBlockingToConsole(nsIChannel* aChannel, nsIURI* aURI,
+ uint32_t aRejectedReason) {
+ MOZ_ASSERT(aChannel && aURI);
+ uint64_t windowID = nsContentUtils::GetInnerWindowID(aChannel);
+ if (!windowID) {
+ // Get the window ID from the target BrowsingContext
+ nsCOMPtr<nsILoadInfo> loadInfo = aChannel->LoadInfo();
+
+ RefPtr<dom::BrowsingContext> targetBrowsingContext;
+ loadInfo->GetTargetBrowsingContext(getter_AddRefs(targetBrowsingContext));
+
+ if (!targetBrowsingContext) {
+ return;
+ }
+
+ WindowContext* windowContext =
+ targetBrowsingContext->GetCurrentWindowContext();
+ if (!windowContext) {
+ return;
+ }
+
+ windowID = windowContext->InnerWindowId();
+ }
+ ReportBlockingToConsole(windowID, aURI, aRejectedReason);
+}
+
+void NotifyBlockingDecision(nsIChannel* aTrackingChannel,
+ ContentBlockingNotifier::BlockingDecision aDecision,
+ uint32_t aRejectedReason, nsIURI* aURI) {
+ MOZ_ASSERT(aTrackingChannel);
+
+ // This can be called in either the parent process or the child processes.
+ // When this is called in the child processes, we must have a window.
+ if (XRE_IsContentProcess()) {
+ nsCOMPtr<nsILoadContext> loadContext;
+ NS_QueryNotificationCallbacks(aTrackingChannel, loadContext);
+ if (!loadContext) {
+ return;
+ }
+
+ nsCOMPtr<mozIDOMWindowProxy> window;
+ loadContext->GetAssociatedWindow(getter_AddRefs(window));
+ if (!window) {
+ return;
+ }
+
+ nsCOMPtr<nsPIDOMWindowOuter> outer = nsPIDOMWindowOuter::From(window);
+ if (!outer) {
+ return;
+ }
+
+ // When this is called in the child processes with system privileges,
+ // the decision should always be ALLOW. We can stop here because both
+ // UI and content blocking log don't care this event.
+ if (nsGlobalWindowOuter::Cast(outer)->GetPrincipal() ==
+ nsContentUtils::GetSystemPrincipal()) {
+ MOZ_DIAGNOSTIC_ASSERT(aDecision ==
+ ContentBlockingNotifier::BlockingDecision::eAllow);
+ return;
+ }
+ }
+
+ nsAutoCString trackingOrigin;
+ if (aURI) {
+ Unused << nsContentUtils::GetASCIIOrigin(aURI, trackingOrigin);
+ }
+
+ if (aDecision == ContentBlockingNotifier::BlockingDecision::eBlock) {
+ ContentBlockingNotifier::OnEvent(aTrackingChannel, true, aRejectedReason,
+ trackingOrigin);
+
+ ReportBlockingToConsole(aTrackingChannel, aURI, aRejectedReason);
+ }
+
+ // Now send the generic "cookies loaded" notifications, from the most generic
+ // to the most specific.
+ ContentBlockingNotifier::OnEvent(aTrackingChannel, false,
+ nsIWebProgressListener::STATE_COOKIES_LOADED,
+ trackingOrigin);
+
+ nsCOMPtr<nsIClassifiedChannel> classifiedChannel =
+ do_QueryInterface(aTrackingChannel);
+ if (!classifiedChannel) {
+ return;
+ }
+
+ uint32_t classificationFlags =
+ classifiedChannel->GetThirdPartyClassificationFlags();
+ if (classificationFlags &
+ nsIClassifiedChannel::ClassificationFlags::CLASSIFIED_TRACKING) {
+ ContentBlockingNotifier::OnEvent(
+ aTrackingChannel, false,
+ nsIWebProgressListener::STATE_COOKIES_LOADED_TRACKER, trackingOrigin);
+ }
+
+ if (classificationFlags &
+ nsIClassifiedChannel::ClassificationFlags::CLASSIFIED_SOCIALTRACKING) {
+ ContentBlockingNotifier::OnEvent(
+ aTrackingChannel, false,
+ nsIWebProgressListener::STATE_COOKIES_LOADED_SOCIALTRACKER,
+ trackingOrigin);
+ }
+}
+
+// Send a message to notify OnContentBlockingEvent in the parent, which will
+// update the ContentBlockingLog in the parent.
+void NotifyEventInChild(
+ nsIChannel* aTrackingChannel, bool aBlocked, uint32_t aRejectedReason,
+ const nsACString& aTrackingOrigin,
+ const Maybe<ContentBlockingNotifier::StorageAccessPermissionGrantedReason>&
+ aReason) {
+ MOZ_ASSERT(XRE_IsContentProcess());
+
+ // We don't need to find the top-level window here because the
+ // parent will do that for us.
+ nsCOMPtr<nsILoadContext> loadContext;
+ NS_QueryNotificationCallbacks(aTrackingChannel, loadContext);
+ if (!loadContext) {
+ return;
+ }
+
+ nsCOMPtr<mozIDOMWindowProxy> window;
+ loadContext->GetAssociatedWindow(getter_AddRefs(window));
+ if (!window) {
+ return;
+ }
+
+ RefPtr<dom::BrowserChild> browserChild = dom::BrowserChild::GetFrom(window);
+ NS_ENSURE_TRUE_VOID(browserChild);
+
+ nsTArray<nsCString> trackingFullHashes;
+ nsCOMPtr<nsIClassifiedChannel> classifiedChannel =
+ do_QueryInterface(aTrackingChannel);
+
+ if (classifiedChannel) {
+ Unused << classifiedChannel->GetMatchedTrackingFullHashes(
+ trackingFullHashes);
+ }
+
+ browserChild->NotifyContentBlockingEvent(aRejectedReason, aTrackingChannel,
+ aBlocked, aTrackingOrigin,
+ trackingFullHashes, aReason);
+}
+
+// Update the ContentBlockingLog of the top-level WindowGlobalParent of
+// the tracking channel.
+void NotifyEventInParent(
+ nsIChannel* aTrackingChannel, bool aBlocked, uint32_t aRejectedReason,
+ const nsACString& aTrackingOrigin,
+ const Maybe<ContentBlockingNotifier::StorageAccessPermissionGrantedReason>&
+ aReason) {
+ MOZ_ASSERT(XRE_IsParentProcess());
+
+ nsCOMPtr<nsILoadInfo> loadInfo = aTrackingChannel->LoadInfo();
+ RefPtr<dom::BrowsingContext> bc;
+ loadInfo->GetBrowsingContext(getter_AddRefs(bc));
+
+ if (!bc || bc->IsDiscarded()) {
+ return;
+ }
+
+ bc = bc->Top();
+ RefPtr<dom::WindowGlobalParent> wgp =
+ bc->Canonical()->GetCurrentWindowGlobal();
+ NS_ENSURE_TRUE_VOID(wgp);
+
+ nsTArray<nsCString> trackingFullHashes;
+ nsCOMPtr<nsIClassifiedChannel> classifiedChannel =
+ do_QueryInterface(aTrackingChannel);
+
+ if (classifiedChannel) {
+ Unused << classifiedChannel->GetMatchedTrackingFullHashes(
+ trackingFullHashes);
+ }
+
+ wgp->NotifyContentBlockingEvent(aRejectedReason, aTrackingChannel, aBlocked,
+ aTrackingOrigin, trackingFullHashes, aReason);
+}
+
+} // namespace
+
+/* static */
+void ContentBlockingNotifier::ReportUnblockingToConsole(
+ BrowsingContext* aBrowsingContext, const nsAString& aTrackingOrigin,
+ ContentBlockingNotifier::StorageAccessPermissionGrantedReason aReason) {
+ MOZ_ASSERT(aBrowsingContext);
+ MOZ_ASSERT_IF(XRE_IsContentProcess(), aBrowsingContext->Top()->IsInProcess());
+
+ uint64_t windowID = aBrowsingContext->GetCurrentInnerWindowId();
+
+ // The storage permission is granted under the top-level origin.
+ nsCOMPtr<nsIPrincipal> principal =
+ AntiTrackingUtils::GetPrincipal(aBrowsingContext->Top());
+ if (NS_WARN_IF(!principal)) {
+ return;
+ }
+
+ ::ReportUnblockingToConsole(windowID, principal, aTrackingOrigin, aReason);
+}
+
+/* static */
+void ContentBlockingNotifier::OnDecision(nsIChannel* aChannel,
+ BlockingDecision aDecision,
+ uint32_t aRejectedReason) {
+ MOZ_ASSERT(
+ aRejectedReason == 0 ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_BY_PERMISSION) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_TRACKER) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_SOCIALTRACKER) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_PARTITIONED_FOREIGN) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_ALL) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_FOREIGN));
+ MOZ_ASSERT(aDecision == BlockingDecision::eBlock ||
+ aDecision == BlockingDecision::eAllow);
+
+ if (!aChannel) {
+ return;
+ }
+
+ nsCOMPtr<nsIURI> uri;
+ aChannel->GetURI(getter_AddRefs(uri));
+
+ // Can be called in EITHER the parent or child process.
+ NotifyBlockingDecision(aChannel, aDecision, aRejectedReason, uri);
+}
+
+/* static */
+void ContentBlockingNotifier::OnDecision(nsPIDOMWindowInner* aWindow,
+ BlockingDecision aDecision,
+ uint32_t aRejectedReason) {
+ MOZ_ASSERT(aWindow);
+ MOZ_ASSERT(
+ aRejectedReason == 0 ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_BY_PERMISSION) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_TRACKER) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_SOCIALTRACKER) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_PARTITIONED_FOREIGN) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_ALL) ||
+ aRejectedReason ==
+ static_cast<uint32_t>(
+ nsIWebProgressListener::STATE_COOKIES_BLOCKED_FOREIGN));
+ MOZ_ASSERT(aDecision == BlockingDecision::eBlock ||
+ aDecision == BlockingDecision::eAllow);
+
+ Document* document = aWindow->GetExtantDoc();
+ if (!document) {
+ return;
+ }
+
+ nsIChannel* channel = document->GetChannel();
+ if (!channel) {
+ return;
+ }
+
+ nsIURI* uri = document->GetDocumentURI();
+
+ NotifyBlockingDecision(channel, aDecision, aRejectedReason, uri);
+}
+
+/* static */
+void ContentBlockingNotifier::OnDecision(BrowsingContext* aBrowsingContext,
+ BlockingDecision aDecision,
+ uint32_t aRejectedReason) {
+ MOZ_ASSERT(aBrowsingContext);
+ MOZ_ASSERT_IF(XRE_IsContentProcess(), aBrowsingContext->IsInProcess());
+
+ if (aBrowsingContext->IsInProcess()) {
+ nsCOMPtr<nsPIDOMWindowOuter> outer = aBrowsingContext->GetDOMWindow();
+ if (NS_WARN_IF(!outer)) {
+ return;
+ }
+
+ nsCOMPtr<nsPIDOMWindowInner> inner = outer->GetCurrentInnerWindow();
+ if (NS_WARN_IF(!inner)) {
+ return;
+ }
+
+ ContentBlockingNotifier::OnDecision(inner, aDecision, aRejectedReason);
+ } else {
+ // we send an IPC to the content process when we don't have an in-process
+ // browsing context. This is not smart because this should be able to be
+ // done directly in the parent. The reason we are doing this is because we
+ // need the channel, which is not accessible in the parent when you only
+ // have a browsing context.
+ MOZ_ASSERT(XRE_IsParentProcess());
+
+ ContentParent* cp = aBrowsingContext->Canonical()->GetContentParent();
+ Unused << cp->SendOnContentBlockingDecision(aBrowsingContext, aDecision,
+ aRejectedReason);
+ }
+}
+
+/* static */
+void ContentBlockingNotifier::OnEvent(nsIChannel* aTrackingChannel,
+ uint32_t aRejectedReason, bool aBlocked) {
+ MOZ_ASSERT(XRE_IsParentProcess() && aTrackingChannel);
+
+ nsCOMPtr<nsIURI> uri;
+ aTrackingChannel->GetURI(getter_AddRefs(uri));
+
+ nsAutoCString trackingOrigin;
+ if (uri) {
+ Unused << nsContentUtils::GetASCIIOrigin(uri, trackingOrigin);
+ }
+
+ return ContentBlockingNotifier::OnEvent(aTrackingChannel, aBlocked,
+ aRejectedReason, trackingOrigin);
+}
+
+/* static */
+void ContentBlockingNotifier::OnEvent(
+ nsIChannel* aTrackingChannel, bool aBlocked, uint32_t aRejectedReason,
+ const nsACString& aTrackingOrigin,
+ const Maybe<StorageAccessPermissionGrantedReason>& aReason) {
+ if (XRE_IsParentProcess()) {
+ NotifyEventInParent(aTrackingChannel, aBlocked, aRejectedReason,
+ aTrackingOrigin, aReason);
+ } else {
+ NotifyEventInChild(aTrackingChannel, aBlocked, aRejectedReason,
+ aTrackingOrigin, aReason);
+ }
+}