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-rw-r--r--netwerk/base/PrivateBrowsingChannel.h118
1 files changed, 118 insertions, 0 deletions
diff --git a/netwerk/base/PrivateBrowsingChannel.h b/netwerk/base/PrivateBrowsingChannel.h
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+++ b/netwerk/base/PrivateBrowsingChannel.h
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=4 sts=2 sw=2 et cin: */
+/* 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/. */
+
+#ifndef mozilla_net_PrivateBrowsingChannel_h__
+#define mozilla_net_PrivateBrowsingChannel_h__
+
+#include "nsIPrivateBrowsingChannel.h"
+#include "nsCOMPtr.h"
+#include "nsILoadGroup.h"
+#include "nsILoadContext.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsNetUtil.h"
+#include "mozilla/Unused.h"
+
+namespace mozilla {
+namespace net {
+
+template <class Channel>
+class PrivateBrowsingChannel : public nsIPrivateBrowsingChannel {
+ public:
+ PrivateBrowsingChannel()
+ : mPrivateBrowsingOverriden(false), mPrivateBrowsing(false) {}
+
+ NS_IMETHOD SetPrivate(bool aPrivate) override {
+ // Make sure that we don't have a load context
+ // This is a fatal error in debug builds, and a runtime error in release
+ // builds.
+ nsCOMPtr<nsILoadContext> loadContext;
+ NS_QueryNotificationCallbacks(static_cast<Channel*>(this), loadContext);
+ MOZ_ASSERT(!loadContext);
+ if (loadContext) {
+ return NS_ERROR_FAILURE;
+ }
+
+ mPrivateBrowsingOverriden = true;
+ mPrivateBrowsing = aPrivate;
+ return NS_OK;
+ }
+
+ NS_IMETHOD GetIsChannelPrivate(bool* aResult) override {
+ NS_ENSURE_ARG_POINTER(aResult);
+ *aResult = mPrivateBrowsing;
+ return NS_OK;
+ }
+
+ NS_IMETHOD IsPrivateModeOverriden(bool* aValue, bool* aResult) override {
+ NS_ENSURE_ARG_POINTER(aValue);
+ NS_ENSURE_ARG_POINTER(aResult);
+ *aResult = mPrivateBrowsingOverriden;
+ if (mPrivateBrowsingOverriden) {
+ *aValue = mPrivateBrowsing;
+ }
+ return NS_OK;
+ }
+
+ // Must be called every time the channel's callbacks or loadGroup is updated
+ void UpdatePrivateBrowsing() {
+ // once marked as private we never go un-private
+ if (mPrivateBrowsing) {
+ return;
+ }
+
+ auto channel = static_cast<Channel*>(this);
+
+ nsCOMPtr<nsILoadContext> loadContext;
+ NS_QueryNotificationCallbacks(channel, loadContext);
+ if (loadContext) {
+ mPrivateBrowsing = loadContext->UsePrivateBrowsing();
+ return;
+ }
+
+ nsCOMPtr<nsILoadInfo> loadInfo = channel->LoadInfo();
+ OriginAttributes attrs = loadInfo->GetOriginAttributes();
+ mPrivateBrowsing = attrs.mPrivateBrowsingId > 0;
+ }
+
+ bool CanSetCallbacks(nsIInterfaceRequestor* aCallbacks) const {
+ // Make sure that the private bit override flag is not set.
+ // This is a fatal error in debug builds, and a runtime error in release
+ // builds.
+ if (!aCallbacks) {
+ return true;
+ }
+ nsCOMPtr<nsILoadContext> loadContext = do_GetInterface(aCallbacks);
+ if (!loadContext) {
+ return true;
+ }
+ MOZ_ASSERT(!mPrivateBrowsingOverriden);
+ return !mPrivateBrowsingOverriden;
+ }
+
+ bool CanSetLoadGroup(nsILoadGroup* aLoadGroup) const {
+ // Make sure that the private bit override flag is not set.
+ // This is a fatal error in debug builds, and a runtime error in release
+ // builds.
+ if (!aLoadGroup) {
+ return true;
+ }
+ nsCOMPtr<nsIInterfaceRequestor> callbacks;
+ aLoadGroup->GetNotificationCallbacks(getter_AddRefs(callbacks));
+ // From this point on, we just hand off the work to CanSetCallbacks,
+ // because the logic is exactly the same.
+ return CanSetCallbacks(callbacks);
+ }
+
+ protected:
+ bool mPrivateBrowsingOverriden;
+ bool mPrivateBrowsing;
+};
+
+} // namespace net
+} // namespace mozilla
+
+#endif