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-rw-r--r--toolkit/components/antitracking/ContentBlockingUserInteraction.cpp89
1 files changed, 89 insertions, 0 deletions
diff --git a/toolkit/components/antitracking/ContentBlockingUserInteraction.cpp b/toolkit/components/antitracking/ContentBlockingUserInteraction.cpp
new file mode 100644
index 0000000000..fa742b5b5e
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+++ b/toolkit/components/antitracking/ContentBlockingUserInteraction.cpp
@@ -0,0 +1,89 @@
+/* -*- 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 "ContentBlockingUserInteraction.h"
+#include "AntiTrackingUtils.h"
+
+#include "mozilla/dom/ContentChild.h"
+#include "mozilla/PermissionManager.h"
+#include "nsIPrincipal.h"
+#include "nsXULAppAPI.h"
+#include "prtime.h"
+
+namespace mozilla {
+
+/* static */
+void ContentBlockingUserInteraction::Observe(nsIPrincipal* aPrincipal) {
+ if (!aPrincipal || aPrincipal->IsSystemPrincipal()) {
+ // The content process may have sent us garbage data.
+ return;
+ }
+
+ if (XRE_IsParentProcess()) {
+ LOG_PRIN(("Saving the userInteraction for %s", _spec), aPrincipal);
+
+ PermissionManager* permManager = PermissionManager::GetInstance();
+ if (NS_WARN_IF(!permManager)) {
+ LOG(("Permission manager is null, bailing out early"));
+ return;
+ }
+
+ // Remember that this pref is stored in seconds!
+ uint32_t expirationType = nsIPermissionManager::EXPIRE_TIME;
+ uint32_t expirationTime =
+ StaticPrefs::privacy_userInteraction_expiration() * 1000;
+ int64_t when = (PR_Now() / PR_USEC_PER_MSEC) + expirationTime;
+
+ uint32_t privateBrowsingId = 0;
+ nsresult rv = aPrincipal->GetPrivateBrowsingId(&privateBrowsingId);
+ if (!NS_WARN_IF(NS_FAILED(rv)) && privateBrowsingId > 0) {
+ // If we are coming from a private window, make sure to store a
+ // session-only permission which won't get persisted to disk.
+ expirationType = nsIPermissionManager::EXPIRE_SESSION;
+ when = 0;
+ }
+
+ rv = permManager->AddFromPrincipal(aPrincipal, USER_INTERACTION_PERM,
+ nsIPermissionManager::ALLOW_ACTION,
+ expirationType, when);
+ Unused << NS_WARN_IF(NS_FAILED(rv));
+
+ if (StaticPrefs::privacy_antitracking_testing()) {
+ nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
+ obs->NotifyObservers(
+ nullptr, "antitracking-test-user-interaction-perm-added", nullptr);
+ }
+ return;
+ }
+
+ dom::ContentChild* cc = dom::ContentChild::GetSingleton();
+ MOZ_ASSERT(cc);
+
+ LOG_PRIN(("Asking the parent process to save the user-interaction for us: %s",
+ _spec),
+ aPrincipal);
+ cc->SendStoreUserInteractionAsPermission(aPrincipal);
+}
+
+/* static */
+bool ContentBlockingUserInteraction::Exists(nsIPrincipal* aPrincipal) {
+ PermissionManager* permManager = PermissionManager::GetInstance();
+ if (NS_WARN_IF(!permManager)) {
+ return false;
+ }
+
+ uint32_t result = 0;
+ nsresult rv = permManager->TestPermissionWithoutDefaultsFromPrincipal(
+ aPrincipal, USER_INTERACTION_PERM, &result);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return false;
+ }
+
+ return result == nsIPermissionManager::ALLOW_ACTION;
+}
+
+} // namespace mozilla