/* -*- 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/cache/CacheStorageParent.h"

#include "mozilla/Unused.h"

#include "mozilla/dom/ContentParent.h"

#include "mozilla/dom/cache/ActorUtils.h"

#include "mozilla/dom/cache/CacheOpParent.h"

#include "mozilla/dom/cache/ManagerId.h"

#include "mozilla/ipc/PBackgroundParent.h"

namespace mozilla {

namespace dom {

namespace cache {

using mozilla::ipc::PBackgroundParent;

using mozilla::ipc::PrincipalInfo;

// declared in ActorUtils.h

PCacheStorageParent*

AllocPCacheStorageParent(PBackgroundParent* aManagingActor,

                         Namespace aNamespace,

                         const mozilla::ipc::PrincipalInfo& aPrincipalInfo)

{

  return new CacheStorageParent(aManagingActor, aNamespace, aPrincipalInfo);

}

// declared in ActorUtils.h

void

DeallocPCacheStorageParent(PCacheStorageParent* aActor)

{

  delete aActor;

}

CacheStorageParent::CacheStorageParent(PBackgroundParent* aManagingActor,

                                       Namespace aNamespace,

                                       const PrincipalInfo& aPrincipalInfo)

  : mNamespace(aNamespace)

  , mVerifiedStatus(NS_OK)

{

  MOZ_COUNT_CTOR(cache::CacheStorageParent);

  MOZ_DIAGNOSTIC_ASSERT(aManagingActor);

  // Start the async principal verification process immediately.

  mVerifier = PrincipalVerifier::CreateAndDispatch(this, aManagingActor,

                                                   aPrincipalInfo);

  MOZ_DIAGNOSTIC_ASSERT(mVerifier);

}

CacheStorageParent::~CacheStorageParent()

{

  MOZ_COUNT_DTOR(cache::CacheStorageParent);

  MOZ_DIAGNOSTIC_ASSERT(!mVerifier);

}

void

CacheStorageParent::ActorDestroy(ActorDestroyReason aReason)

{

  if (mVerifier) {

    mVerifier->RemoveListener(this);

    mVerifier = nullptr;

  }

}

PCacheOpParent*

CacheStorageParent::AllocPCacheOpParent(const CacheOpArgs& aOpArgs)

{

  if (aOpArgs.type() != CacheOpArgs::TStorageMatchArgs &&

      aOpArgs.type() != CacheOpArgs::TStorageHasArgs &&

      aOpArgs.type() != CacheOpArgs::TStorageOpenArgs &&

      aOpArgs.type() != CacheOpArgs::TStorageDeleteArgs &&

      aOpArgs.type() != CacheOpArgs::TStorageKeysArgs)

  {

    MOZ_CRASH("Invalid operation sent to CacheStorage actor!");

  }

  return new CacheOpParent(Manager(), mNamespace, aOpArgs);

}

bool

CacheStorageParent::DeallocPCacheOpParent(PCacheOpParent* aActor)

{

  delete aActor;

  return true;

}

mozilla::ipc::IPCResult

CacheStorageParent::RecvPCacheOpConstructor(PCacheOpParent* aActor,

                                            const CacheOpArgs& aOpArgs)

{

  auto actor = static_cast<CacheOpParent*>(aActor);

  if (mVerifier) {

    MOZ_DIAGNOSTIC_ASSERT(!mManagerId);

    actor->WaitForVerification(mVerifier);

    return IPC_OK();

  }

  if (NS_WARN_IF(NS_FAILED(mVerifiedStatus))) {

    ErrorResult result(mVerifiedStatus);

    Unused << CacheOpParent::Send__delete__(actor, result, void_t());

    result.SuppressException();

    return IPC_OK();

  }

  MOZ_DIAGNOSTIC_ASSERT(mManagerId);

  actor->Execute(mManagerId);

  return IPC_OK();

}

mozilla::ipc::IPCResult

CacheStorageParent::RecvTeardown()

{

  if (!Send__delete__(this)) {

    // child process is gone, warn and allow actor to clean up normally

    NS_WARNING("CacheStorage failed to delete actor.");

  }

  return IPC_OK();

}

void

CacheStorageParent::OnPrincipalVerified(nsresult aRv, ManagerId* aManagerId)

{

  MOZ_DIAGNOSTIC_ASSERT(mVerifier);

  MOZ_DIAGNOSTIC_ASSERT(!mManagerId);

  MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(mVerifiedStatus));

  if (NS_WARN_IF(NS_FAILED(aRv))) {

    mVerifiedStatus = aRv;

  }

  mManagerId = aManagerId;

  mVerifier->RemoveListener(this);

  mVerifier = nullptr;

}

} // namespace cache

} // namespace dom

} // namespace mozilla