/* -*- 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 "mozilla/dom/BindingUtils.h"

#include "mozilla/dom/MediaCapabilities.h"

#include "mozilla/dom/Promise.h"

#include "mozilla/dom/PromiseWorkerProxy.h"

#include "mozilla/dom/StorageManager.h"

#include "mozilla/dom/WorkerNavigator.h"

#include "mozilla/dom/WorkerNavigatorBinding.h"

#include "mozilla/dom/network/Connection.h"

#include "mozilla/StaticPrefs.h"

#include "nsProxyRelease.h"

#include "nsRFPService.h"

#include "RuntimeService.h"

#include "nsIDocument.h"

#include "WorkerPrivate.h"

#include "WorkerRunnable.h"

#include "WorkerScope.h"

#include "mozilla/dom/Navigator.h"

namespace mozilla {

namespace dom {

using namespace workerinternals;

NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(WorkerNavigator, mStorageManager,

                                      mConnection, mMediaCapabilities);

NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WorkerNavigator, AddRef)

NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WorkerNavigator, Release)

WorkerNavigator::WorkerNavigator(const NavigatorProperties& aProperties,

                                 bool aOnline)

  : mProperties(aProperties)

  , mOnline(aOnline)

{

}

WorkerNavigator::~WorkerNavigator()

{

}

/* static */ already_AddRefed<WorkerNavigator>

WorkerNavigator::Create(bool aOnLine)

{

  RuntimeService* rts = RuntimeService::GetService();

  MOZ_ASSERT(rts);

  const RuntimeService::NavigatorProperties& properties =

    rts->GetNavigatorProperties();

  RefPtr<WorkerNavigator> navigator =

    new WorkerNavigator(properties, aOnLine);

  return navigator.forget();

}

JSObject*

WorkerNavigator::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)

{

  return WorkerNavigator_Binding::Wrap(aCx, this, aGivenProto);

}

void

WorkerNavigator::SetLanguages(const nsTArray<nsString>& aLanguages)

{

  WorkerNavigator_Binding::ClearCachedLanguagesValue(this);

  mProperties.mLanguages = aLanguages;

}

void

WorkerNavigator::GetAppName(nsString& aAppName, CallerType aCallerType) const

{

  WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();

  MOZ_ASSERT(workerPrivate);

  if ((!mProperties.mAppNameOverridden.IsEmpty() ||

       StaticPrefs::privacy_resistFingerprinting()) &&

      !workerPrivate->UsesSystemPrincipal()) {

    // We will spoof this value when 'privacy.resistFingerprinting' is true.

    // See nsRFPService.h for spoofed value.

    aAppName = StaticPrefs::privacy_resistFingerprinting() ?

      NS_LITERAL_STRING(SPOOFED_APPNAME) : mProperties.mAppNameOverridden;

  } else {

    aAppName = mProperties.mAppName;

  }

}

void

WorkerNavigator::GetAppVersion(nsString& aAppVersion, CallerType aCallerType,

                               ErrorResult& aRv) const

{

  WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();

  MOZ_ASSERT(workerPrivate);

  if ((!mProperties.mAppVersionOverridden.IsEmpty() ||

       StaticPrefs::privacy_resistFingerprinting()) &&

      !workerPrivate->UsesSystemPrincipal()) {

    // We will spoof this value when 'privacy.resistFingerprinting' is true.

    // See nsRFPService.h for spoofed value.

    aAppVersion = StaticPrefs::privacy_resistFingerprinting() ?

      NS_LITERAL_STRING(SPOOFED_APPVERSION) : mProperties.mAppVersionOverridden;

  } else {

    aAppVersion = mProperties.mAppVersion;

  }

}

void

WorkerNavigator::GetPlatform(nsString& aPlatform, CallerType aCallerType,

                             ErrorResult& aRv) const

{

  WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();

  MOZ_ASSERT(workerPrivate);

  if ((!mProperties.mPlatformOverridden.IsEmpty() ||

       StaticPrefs::privacy_resistFingerprinting()) &&

      !workerPrivate->UsesSystemPrincipal()) {

    // We will spoof this value when 'privacy.resistFingerprinting' is true.

    // See nsRFPService.h for spoofed value.

    aPlatform = StaticPrefs::privacy_resistFingerprinting() ?

      NS_LITERAL_STRING(SPOOFED_PLATFORM) : mProperties.mPlatformOverridden;

  } else {

    aPlatform = mProperties.mPlatform;

  }

}

namespace {

class GetUserAgentRunnable final : public WorkerMainThreadRunnable

{

  nsString& mUA;

public:

  GetUserAgentRunnable(WorkerPrivate* aWorkerPrivate, nsString& aUA)

    : WorkerMainThreadRunnable(aWorkerPrivate,

                               NS_LITERAL_CSTRING("UserAgent getter"))

    , mUA(aUA)

  {

    MOZ_ASSERT(aWorkerPrivate);

    aWorkerPrivate->AssertIsOnWorkerThread();

  }

  virtual bool MainThreadRun() override

  {

    AssertIsOnMainThread();

    nsCOMPtr<nsPIDOMWindowInner> window = mWorkerPrivate->GetWindow();

    bool isCallerChrome = mWorkerPrivate->UsesSystemPrincipal();

    nsresult rv = dom::Navigator::GetUserAgent(window, isCallerChrome, mUA);

    if (NS_FAILED(rv)) {

      NS_WARNING("Failed to retrieve user-agent from the worker thread.");

    }

    return true;

  }

};

} // namespace

void

WorkerNavigator::GetUserAgent(nsString& aUserAgent, CallerType aCallerType,

                              ErrorResult& aRv) const

{

  WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();

  MOZ_ASSERT(workerPrivate);

  RefPtr<GetUserAgentRunnable> runnable =

    new GetUserAgentRunnable(workerPrivate, aUserAgent);

  runnable->Dispatch(Canceling, aRv);

}

uint64_t

WorkerNavigator::HardwareConcurrency() const

{

  RuntimeService* rts = RuntimeService::GetService();

  MOZ_ASSERT(rts);

  return rts->ClampedHardwareConcurrency();

}

StorageManager*

WorkerNavigator::Storage()

{

  if (!mStorageManager) {

    WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();

    MOZ_ASSERT(workerPrivate);

    RefPtr<nsIGlobalObject> global = workerPrivate->GlobalScope();

    MOZ_ASSERT(global);

    mStorageManager = new StorageManager(global);

  }

  return mStorageManager;

}

network::Connection*

WorkerNavigator::GetConnection(ErrorResult& aRv)

{

  if (!mConnection) {

    WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();

    MOZ_ASSERT(workerPrivate);

    mConnection = network::Connection::CreateForWorker(workerPrivate, aRv);

  }

  return mConnection;

}

dom::MediaCapabilities*

WorkerNavigator::MediaCapabilities()

{

  if (!mMediaCapabilities) {

    WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();

    MOZ_ASSERT(workerPrivate);

    nsIGlobalObject* global = workerPrivate->GlobalScope();

    MOZ_ASSERT(global);

    mMediaCapabilities = new dom::MediaCapabilities(global);

  }

  return mMediaCapabilities;

}

} // namespace dom

} // namespace mozilla