1 files changed, 355 insertions, 0 deletions
diff --git a/hal/sandbox/SandboxHal.cpp b/hal/sandbox/SandboxHal.cpp
new file mode 100644
index 0000000000..2c82c6cdef
--- /dev/null
+++ b/hal/sandbox/SandboxHal.cpp
@@ -0,0 +1,355 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set sw=2 ts=8 et ft=cpp : */
+/* 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 "Hal.h"
+#include "HalLog.h"
+#include "mozilla/dom/ContentChild.h"
+#include "mozilla/hal_sandbox/PHalChild.h"
+#include "mozilla/hal_sandbox/PHalParent.h"
+#include "mozilla/dom/BrowserParent.h"
+#include "mozilla/dom/BrowserChild.h"
+#include "mozilla/fallback/FallbackScreenConfiguration.h"
+#include "mozilla/EnumeratedRange.h"
+#include "mozilla/Observer.h"
+#include "mozilla/Unused.h"
+#include "WindowIdentifier.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+using namespace mozilla::hal;
+
+namespace mozilla {
+namespace hal_sandbox {
+
+static bool sHalChildDestroyed = false;
+
+bool HalChildDestroyed() { return sHalChildDestroyed; }
+
+static PHalChild* sHal;
+static PHalChild* Hal() {
+  if (!sHal) {
+    sHal = ContentChild::GetSingleton()->SendPHalConstructor();
+  }
+  return sHal;
+}
+
+void Vibrate(const nsTArray<uint32_t>& pattern, WindowIdentifier&& id) {
+  HAL_LOG("Vibrate: Sending to parent process.");
+
+  WindowIdentifier newID(std::move(id));
+  newID.AppendProcessID();
+  Hal()->SendVibrate(pattern, newID.AsArray(),
+                     BrowserChild::GetFrom(newID.GetWindow()));
+}
+
+void CancelVibrate(WindowIdentifier&& id) {
+  HAL_LOG("CancelVibrate: Sending to parent process.");
+
+  WindowIdentifier newID(std::move(id));
+  newID.AppendProcessID();
+  Hal()->SendCancelVibrate(newID.AsArray(),
+                           BrowserChild::GetFrom(newID.GetWindow()));
+}
+
+void EnableBatteryNotifications() { Hal()->SendEnableBatteryNotifications(); }
+
+void DisableBatteryNotifications() { Hal()->SendDisableBatteryNotifications(); }
+
+void GetCurrentBatteryInformation(BatteryInformation* aBatteryInfo) {
+  Hal()->SendGetCurrentBatteryInformation(aBatteryInfo);
+}
+
+void EnableNetworkNotifications() { Hal()->SendEnableNetworkNotifications(); }
+
+void DisableNetworkNotifications() { Hal()->SendDisableNetworkNotifications(); }
+
+void GetCurrentNetworkInformation(NetworkInformation* aNetworkInfo) {
+  Hal()->SendGetCurrentNetworkInformation(aNetworkInfo);
+}
+
+void EnableScreenConfigurationNotifications() {
+  Hal()->SendEnableScreenConfigurationNotifications();
+}
+
+void DisableScreenConfigurationNotifications() {
+  Hal()->SendDisableScreenConfigurationNotifications();
+}
+
+void GetCurrentScreenConfiguration(ScreenConfiguration* aScreenConfiguration) {
+  fallback::GetCurrentScreenConfiguration(aScreenConfiguration);
+}
+
+bool LockScreenOrientation(const hal::ScreenOrientation& aOrientation) {
+  bool allowed;
+  Hal()->SendLockScreenOrientation(aOrientation, &allowed);
+  return allowed;
+}
+
+void UnlockScreenOrientation() { Hal()->SendUnlockScreenOrientation(); }
+
+void EnableSensorNotifications(SensorType aSensor) {
+  Hal()->SendEnableSensorNotifications(aSensor);
+}
+
+void DisableSensorNotifications(SensorType aSensor) {
+  Hal()->SendDisableSensorNotifications(aSensor);
+}
+
+void EnableWakeLockNotifications() { Hal()->SendEnableWakeLockNotifications(); }
+
+void DisableWakeLockNotifications() {
+  Hal()->SendDisableWakeLockNotifications();
+}
+
+void ModifyWakeLock(const nsAString& aTopic, WakeLockControl aLockAdjust,
+                    WakeLockControl aHiddenAdjust, uint64_t aProcessID) {
+  MOZ_ASSERT(aProcessID != CONTENT_PROCESS_ID_UNKNOWN);
+  Hal()->SendModifyWakeLock(nsString(aTopic), aLockAdjust, aHiddenAdjust,
+                            aProcessID);
+}
+
+void GetWakeLockInfo(const nsAString& aTopic,
+                     WakeLockInformation* aWakeLockInfo) {
+  Hal()->SendGetWakeLockInfo(nsString(aTopic), aWakeLockInfo);
+}
+
+bool EnableAlarm() {
+  MOZ_CRASH("Alarms can't be programmed from sandboxed contexts.  Yet.");
+}
+
+void DisableAlarm() {
+  MOZ_CRASH("Alarms can't be programmed from sandboxed contexts.  Yet.");
+}
+
+bool SetAlarm(int32_t aSeconds, int32_t aNanoseconds) {
+  MOZ_CRASH("Alarms can't be programmed from sandboxed contexts.  Yet.");
+}
+
+void SetProcessPriority(int aPid, ProcessPriority aPriority) {
+  MOZ_CRASH("Only the main process may set processes' priorities.");
+}
+
+bool SetProcessPrioritySupported() {
+  MOZ_CRASH("Only the main process may call SetProcessPrioritySupported().");
+}
+
+class HalParent : public PHalParent,
+                  public BatteryObserver,
+                  public NetworkObserver,
+                  public ISensorObserver,
+                  public WakeLockObserver,
+                  public ScreenConfigurationObserver {
+ public:
+  virtual void ActorDestroy(ActorDestroyReason aWhy) override {
+    // NB: you *must* unconditionally unregister your observer here,
+    // if it *may* be registered below.
+    hal::UnregisterBatteryObserver(this);
+    hal::UnregisterNetworkObserver(this);
+    hal::UnregisterScreenConfigurationObserver(this);
+    for (auto sensor : MakeEnumeratedRange(NUM_SENSOR_TYPE)) {
+      hal::UnregisterSensorObserver(sensor, this);
+    }
+    hal::UnregisterWakeLockObserver(this);
+  }
+
+  virtual mozilla::ipc::IPCResult RecvVibrate(
+      nsTArray<unsigned int>&& pattern, nsTArray<uint64_t>&& id,
+      PBrowserParent* browserParent) override {
+    // We give all content vibration permission.
+    //    BrowserParent *browserParent = BrowserParent::GetFrom(browserParent);
+    /* xxxkhuey wtf
+    nsCOMPtr<nsIDOMWindow> window =
+      do_QueryInterface(browserParent->GetBrowserDOMWindow());
+    */
+    hal::Vibrate(pattern, WindowIdentifier(std::move(id), nullptr));
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvCancelVibrate(
+      nsTArray<uint64_t>&& id, PBrowserParent* browserParent) override {
+    // BrowserParent *browserParent = BrowserParent::GetFrom(browserParent);
+    /* XXXkhuey wtf
+    nsCOMPtr<nsIDOMWindow> window =
+      browserParent->GetBrowserDOMWindow();
+    */
+    hal::CancelVibrate(WindowIdentifier(std::move(id), nullptr));
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvEnableBatteryNotifications() override {
+    // We give all content battery-status permission.
+    hal::RegisterBatteryObserver(this);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvDisableBatteryNotifications() override {
+    hal::UnregisterBatteryObserver(this);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvGetCurrentBatteryInformation(
+      BatteryInformation* aBatteryInfo) override {
+    // We give all content battery-status permission.
+    hal::GetCurrentBatteryInformation(aBatteryInfo);
+    return IPC_OK();
+  }
+
+  void Notify(const BatteryInformation& aBatteryInfo) override {
+    Unused << SendNotifyBatteryChange(aBatteryInfo);
+  }
+
+  virtual mozilla::ipc::IPCResult RecvEnableNetworkNotifications() override {
+    // We give all content access to this network-status information.
+    hal::RegisterNetworkObserver(this);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvDisableNetworkNotifications() override {
+    hal::UnregisterNetworkObserver(this);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvGetCurrentNetworkInformation(
+      NetworkInformation* aNetworkInfo) override {
+    hal::GetCurrentNetworkInformation(aNetworkInfo);
+    return IPC_OK();
+  }
+
+  void Notify(const NetworkInformation& aNetworkInfo) override {
+    Unused << SendNotifyNetworkChange(aNetworkInfo);
+  }
+
+  virtual mozilla::ipc::IPCResult RecvEnableScreenConfigurationNotifications()
+      override {
+    // Screen configuration is used to implement CSS and DOM
+    // properties, so all content already has access to this.
+    hal::RegisterScreenConfigurationObserver(this);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvDisableScreenConfigurationNotifications()
+      override {
+    hal::UnregisterScreenConfigurationObserver(this);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvLockScreenOrientation(
+      const ScreenOrientation& aOrientation, bool* aAllowed) override {
+    // FIXME/bug 777980: unprivileged content may only lock
+    // orientation while fullscreen.  We should check whether the
+    // request comes from an actor in a process that might be
+    // fullscreen.  We don't have that information currently.
+    *aAllowed = hal::LockScreenOrientation(aOrientation);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvUnlockScreenOrientation() override {
+    hal::UnlockScreenOrientation();
+    return IPC_OK();
+  }
+
+  void Notify(const ScreenConfiguration& aScreenConfiguration) override {
+    Unused << SendNotifyScreenConfigurationChange(aScreenConfiguration);
+  }
+
+  virtual mozilla::ipc::IPCResult RecvEnableSensorNotifications(
+      const SensorType& aSensor) override {
+    // We currently allow any content to register device-sensor
+    // listeners.
+    hal::RegisterSensorObserver(aSensor, this);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvDisableSensorNotifications(
+      const SensorType& aSensor) override {
+    hal::UnregisterSensorObserver(aSensor, this);
+    return IPC_OK();
+  }
+
+  void Notify(const SensorData& aSensorData) override {
+    Unused << SendNotifySensorChange(aSensorData);
+  }
+
+  virtual mozilla::ipc::IPCResult RecvModifyWakeLock(
+      const nsString& aTopic, const WakeLockControl& aLockAdjust,
+      const WakeLockControl& aHiddenAdjust,
+      const uint64_t& aProcessID) override {
+    MOZ_ASSERT(aProcessID != CONTENT_PROCESS_ID_UNKNOWN);
+
+    // We allow arbitrary content to use wake locks.
+    hal::ModifyWakeLock(aTopic, aLockAdjust, aHiddenAdjust, aProcessID);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvEnableWakeLockNotifications() override {
+    // We allow arbitrary content to use wake locks.
+    hal::RegisterWakeLockObserver(this);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvDisableWakeLockNotifications() override {
+    hal::UnregisterWakeLockObserver(this);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvGetWakeLockInfo(
+      const nsString& aTopic, WakeLockInformation* aWakeLockInfo) override {
+    hal::GetWakeLockInfo(aTopic, aWakeLockInfo);
+    return IPC_OK();
+  }
+
+  void Notify(const WakeLockInformation& aWakeLockInfo) override {
+    Unused << SendNotifyWakeLockChange(aWakeLockInfo);
+  }
+};
+
+class HalChild : public PHalChild {
+ public:
+  virtual void ActorDestroy(ActorDestroyReason aWhy) override {
+    sHalChildDestroyed = true;
+  }
+
+  virtual mozilla::ipc::IPCResult RecvNotifyBatteryChange(
+      const BatteryInformation& aBatteryInfo) override {
+    hal::NotifyBatteryChange(aBatteryInfo);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvNotifySensorChange(
+      const hal::SensorData& aSensorData) override;
+
+  virtual mozilla::ipc::IPCResult RecvNotifyNetworkChange(
+      const NetworkInformation& aNetworkInfo) override {
+    hal::NotifyNetworkChange(aNetworkInfo);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvNotifyWakeLockChange(
+      const WakeLockInformation& aWakeLockInfo) override {
+    hal::NotifyWakeLockChange(aWakeLockInfo);
+    return IPC_OK();
+  }
+
+  virtual mozilla::ipc::IPCResult RecvNotifyScreenConfigurationChange(
+      const ScreenConfiguration& aScreenConfiguration) override {
+    hal::NotifyScreenConfigurationChange(aScreenConfiguration);
+    return IPC_OK();
+  }
+};
+
+mozilla::ipc::IPCResult HalChild::RecvNotifySensorChange(
+    const hal::SensorData& aSensorData) {
+  hal::NotifySensorChange(aSensorData);
+
+  return IPC_OK();
+}
+
+PHalChild* CreateHalChild() { return new HalChild(); }
+
+PHalParent* CreateHalParent() { return new HalParent(); }
+
+}  // namespace hal_sandbox
+}  // namespace mozilla