The Tor Browser: hal/WindowIdentifier.cpp@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim: set sw=2 ts=8 et ft=cpp : */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #include "mozilla/dom/ContentChild.h"

     8 #include "WindowIdentifier.h"

     9 #include "nsPIDOMWindow.h"

    11 namespace mozilla {

    12 namespace hal {

    14 WindowIdentifier::WindowIdentifier()

    15   : mWindow(nullptr)

    16   , mIsEmpty(true)

    17 {

    18 }

    20 WindowIdentifier::WindowIdentifier(nsIDOMWindow *window)

    21   : mWindow(window)

    22   , mIsEmpty(false)

    23 {

    24   mID.AppendElement(GetWindowID());

    25 }

    27 WindowIdentifier::WindowIdentifier(const InfallibleTArray<uint64_t> &id, nsIDOMWindow *window)

    28   : mID(id)

    29   , mWindow(window)

    30   , mIsEmpty(false)

    31 {

    32   mID.AppendElement(GetWindowID());

    33 }

    35 WindowIdentifier::WindowIdentifier(const WindowIdentifier &other)

    36   : mID(other.mID)

    37   , mWindow(other.mWindow)

    38   , mIsEmpty(other.mIsEmpty)

    39 {

    40 }

    42 const InfallibleTArray<uint64_t>&

    43 WindowIdentifier::AsArray() const

    44 {

    45   MOZ_ASSERT(!mIsEmpty);

    46   return mID;

    47 }

    49 bool

    50 WindowIdentifier::HasTraveledThroughIPC() const

    51 {

    52   MOZ_ASSERT(!mIsEmpty);

    53   return mID.Length() >= 2;

    54 }

    56 void

    57 WindowIdentifier::AppendProcessID()

    58 {

    59   MOZ_ASSERT(!mIsEmpty);

    60   mID.AppendElement(dom::ContentChild::GetSingleton()->GetID());

    61 }

    63 uint64_t

    64 WindowIdentifier::GetWindowID() const

    65 {

    66   MOZ_ASSERT(!mIsEmpty);

    67   nsCOMPtr<nsPIDOMWindow> pidomWindow = do_QueryInterface(mWindow);

    68   if (!pidomWindow) {

    69     return UINT64_MAX;

    70   }

    71   return pidomWindow->WindowID();

    72 }

    74 nsIDOMWindow*

    75 WindowIdentifier::GetWindow() const

    76 {

    77   MOZ_ASSERT(!mIsEmpty);

    78   return mWindow;

    79 }

    81 } // namespace hal

    82 } // namespace mozilla

The Tor Browser / file revision

hal/WindowIdentifier.cpp@97036ab72558

hal/WindowIdentifier.cpp