/* -*- 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/ManagerId.h"

#include "mozilla/dom/quota/QuotaManager.h"

#include "nsIPrincipal.h"

#include "nsProxyRelease.h"

#include "mozilla/RefPtr.h"

#include "nsThreadUtils.h"

namespace mozilla {

namespace dom {

namespace cache {

using mozilla::dom::quota::QuotaManager;

// static

nsresult

ManagerId::Create(nsIPrincipal* aPrincipal, ManagerId** aManagerIdOut)

{

  MOZ_ASSERT(NS_IsMainThread());

  // The QuotaManager::GetInfoFromPrincipal() has special logic for system

  // and about: principals.  We need to use the same modified origin in

  // order to interpret calls from QM correctly.

  nsCString quotaOrigin;

  nsresult rv = QuotaManager::GetInfoFromPrincipal(aPrincipal,

                                                   nullptr,   // suffix

                                                   nullptr,   // group

                                                   &quotaOrigin);

  if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }

  RefPtr<ManagerId> ref = new ManagerId(aPrincipal, quotaOrigin);

  ref.forget(aManagerIdOut);

  return NS_OK;

}

already_AddRefed<nsIPrincipal>

ManagerId::Principal() const

{

  MOZ_ASSERT(NS_IsMainThread());

  nsCOMPtr<nsIPrincipal> ref = mPrincipal;

  return ref.forget();

}

ManagerId::ManagerId(nsIPrincipal* aPrincipal, const nsACString& aQuotaOrigin)

    : mPrincipal(aPrincipal)

    , mQuotaOrigin(aQuotaOrigin)

{

  MOZ_DIAGNOSTIC_ASSERT(mPrincipal);

}

ManagerId::~ManagerId()

{

  // If we're already on the main thread, then default destruction is fine

  if (NS_IsMainThread()) {

    return;

  }

  // Otherwise we need to proxy to main thread to do the release

  // The PBackground worker thread shouldn't be running after the main thread

  // is stopped.  So main thread is guaranteed to exist here.

  NS_ReleaseOnMainThreadSystemGroup(

    "ManagerId::mPrincipal", mPrincipal.forget());

}

} // namespace cache

} // namespace dom

} // namespace mozilla