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path: root/netwerk/base/LoadContextInfo.cpp
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/* 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 "LoadContextInfo.h"

#include "mozilla/dom/ToJSValue.h"
#include "nsIChannel.h"
#include "nsILoadContext.h"
#include "nsIWebNavigation.h"
#include "nsNetUtil.h"

using namespace mozilla::dom;
namespace mozilla {
namespace net {

// LoadContextInfo

NS_IMPL_ISUPPORTS(LoadContextInfo, nsILoadContextInfo)

LoadContextInfo::LoadContextInfo(bool aIsAnonymous, NeckoOriginAttributes aOriginAttributes)
  : mIsAnonymous(aIsAnonymous)
  , mOriginAttributes(aOriginAttributes)
{
}

LoadContextInfo::~LoadContextInfo()
{
}

NS_IMETHODIMP LoadContextInfo::GetIsPrivate(bool *aIsPrivate)
{
  *aIsPrivate = mOriginAttributes.mPrivateBrowsingId > 0;
  return NS_OK;
}

NS_IMETHODIMP LoadContextInfo::GetIsAnonymous(bool *aIsAnonymous)
{
  *aIsAnonymous = mIsAnonymous;
  return NS_OK;
}

NeckoOriginAttributes const* LoadContextInfo::OriginAttributesPtr()
{
  return &mOriginAttributes;
}

NS_IMETHODIMP LoadContextInfo::GetOriginAttributes(JSContext *aCx,
                                                   JS::MutableHandle<JS::Value> aVal)
{
  if (NS_WARN_IF(!ToJSValue(aCx, mOriginAttributes, aVal))) {
    return NS_ERROR_FAILURE;
  }
  return NS_OK;
}

// LoadContextInfoFactory

NS_IMPL_ISUPPORTS(LoadContextInfoFactory, nsILoadContextInfoFactory)

NS_IMETHODIMP LoadContextInfoFactory::GetDefault(nsILoadContextInfo * *aDefault)
{
  nsCOMPtr<nsILoadContextInfo> info = GetLoadContextInfo(false, NeckoOriginAttributes());
  info.forget(aDefault);
  return NS_OK;
}

NS_IMETHODIMP LoadContextInfoFactory::GetPrivate(nsILoadContextInfo * *aPrivate)
{
  NeckoOriginAttributes attrs;
  attrs.SyncAttributesWithPrivateBrowsing(true);
  nsCOMPtr<nsILoadContextInfo> info = GetLoadContextInfo(false, attrs);
  info.forget(aPrivate);
  return NS_OK;
}

NS_IMETHODIMP LoadContextInfoFactory::GetAnonymous(nsILoadContextInfo * *aAnonymous)
{
  nsCOMPtr<nsILoadContextInfo> info = GetLoadContextInfo(true, NeckoOriginAttributes());
  info.forget(aAnonymous);
  return NS_OK;
}

NS_IMETHODIMP LoadContextInfoFactory::Custom(bool aAnonymous,
                                             JS::HandleValue aOriginAttributes, JSContext *cx,
                                             nsILoadContextInfo * *_retval)
{
  NeckoOriginAttributes attrs;
  bool status = attrs.Init(cx, aOriginAttributes);
  NS_ENSURE_TRUE(status, NS_ERROR_FAILURE);

  nsCOMPtr<nsILoadContextInfo> info = GetLoadContextInfo(aAnonymous, attrs);
  info.forget(_retval);
  return NS_OK;
}

NS_IMETHODIMP LoadContextInfoFactory::FromLoadContext(nsILoadContext *aLoadContext, bool aAnonymous,
                                                      nsILoadContextInfo * *_retval)
{
  nsCOMPtr<nsILoadContextInfo> info = GetLoadContextInfo(aLoadContext, aAnonymous);
  info.forget(_retval);
  return NS_OK;
}

NS_IMETHODIMP LoadContextInfoFactory::FromWindow(nsIDOMWindow *aWindow, bool aAnonymous,
                                                 nsILoadContextInfo * *_retval)
{
  nsCOMPtr<nsILoadContextInfo> info = GetLoadContextInfo(aWindow, aAnonymous);
  info.forget(_retval);
  return NS_OK;
}

// Helper functions

LoadContextInfo *
GetLoadContextInfo(nsIChannel * aChannel)
{
  nsresult rv;

  DebugOnly<bool> pb = NS_UsePrivateBrowsing(aChannel);

  bool anon = false;
  nsLoadFlags loadFlags;
  rv = aChannel->GetLoadFlags(&loadFlags);
  if (NS_SUCCEEDED(rv)) {
    anon = !!(loadFlags & nsIChannel::LOAD_ANONYMOUS);
  }

  NeckoOriginAttributes oa;
  NS_GetOriginAttributes(aChannel, oa);
  MOZ_ASSERT(pb == (oa.mPrivateBrowsingId > 0));

  return new LoadContextInfo(anon, oa);
}

LoadContextInfo *
GetLoadContextInfo(nsILoadContext *aLoadContext, bool aIsAnonymous)
{
  if (!aLoadContext) {
    return new LoadContextInfo(aIsAnonymous,
                               NeckoOriginAttributes(nsILoadContextInfo::NO_APP_ID, false));
  }

  DebugOnly<bool> pb = aLoadContext->UsePrivateBrowsing();
  DocShellOriginAttributes doa;
  aLoadContext->GetOriginAttributes(doa);
  MOZ_ASSERT(pb == (doa.mPrivateBrowsingId > 0));

  NeckoOriginAttributes noa;
  noa.InheritFromDocShellToNecko(doa);

  return new LoadContextInfo(aIsAnonymous, noa);
}

LoadContextInfo*
GetLoadContextInfo(nsIDOMWindow *aWindow,
                   bool aIsAnonymous)
{
  nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(aWindow);
  nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(webNav);

  return GetLoadContextInfo(loadContext, aIsAnonymous);
}

LoadContextInfo *
GetLoadContextInfo(nsILoadContextInfo *aInfo)
{
  return new LoadContextInfo(aInfo->IsAnonymous(),
                             *aInfo->OriginAttributesPtr());
}

LoadContextInfo *
GetLoadContextInfo(bool const aIsAnonymous,
                   NeckoOriginAttributes const &aOriginAttributes)
{
  return new LoadContextInfo(aIsAnonymous,
                             aOriginAttributes);
}

} // namespace net
} // namespace mozilla