netwerk/base/nsSimpleNestedURI.cpp

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "base/basictypes.h"

#include "nsNetCID.h"
#include "nsNetUtil.h"
#include "nsSimpleNestedURI.h"
#include "nsIObjectInputStream.h"
#include "nsIObjectOutputStream.h"

#include "mozilla/ipc/URIUtils.h"

namespace mozilla {
namespace net {

NS_IMPL_CLASSINFO(nsSimpleNestedURI, nullptr, nsIClassInfo::THREADSAFE,
                  NS_SIMPLENESTEDURI_CID)
// Empty CI getter. We only need nsIClassInfo for Serialization
NS_IMPL_CI_INTERFACE_GETTER0(nsSimpleNestedURI)

NS_IMPL_ADDREF_INHERITED(nsSimpleNestedURI, nsSimpleURI)
NS_IMPL_RELEASE_INHERITED(nsSimpleNestedURI, nsSimpleURI)
NS_IMPL_QUERY_INTERFACE_CI_INHERITED(nsSimpleNestedURI, nsSimpleURI,
                                     nsINestedURI)

nsSimpleNestedURI::nsSimpleNestedURI(nsIURI* innerURI) : mInnerURI(innerURI) {
  NS_ASSERTION(innerURI, "Must have inner URI");
}

nsresult nsSimpleNestedURI::SetPathQueryRef(const nsACString& aPathQueryRef) {
  NS_ENSURE_TRUE(mInnerURI, NS_ERROR_NOT_INITIALIZED);

  nsCOMPtr<nsIURI> inner;
  nsresult rv =
      NS_MutateURI(mInnerURI).SetPathQueryRef(aPathQueryRef).Finalize(inner);
  NS_ENSURE_SUCCESS(rv, rv);
  rv = nsSimpleURI::SetPathQueryRef(aPathQueryRef);
  NS_ENSURE_SUCCESS(rv, rv);
  // If the regular SetPathQueryRef worked, also set it on the inner URI
  mInnerURI = inner;
  return NS_OK;
}

nsresult nsSimpleNestedURI::SetQuery(const nsACString& aQuery) {
  NS_ENSURE_TRUE(mInnerURI, NS_ERROR_NOT_INITIALIZED);

  nsCOMPtr<nsIURI> inner;
  nsresult rv = NS_MutateURI(mInnerURI).SetQuery(aQuery).Finalize(inner);
  NS_ENSURE_SUCCESS(rv, rv);
  rv = nsSimpleURI::SetQuery(aQuery);
  NS_ENSURE_SUCCESS(rv, rv);
  // If the regular SetQuery worked, also set it on the inner URI
  mInnerURI = inner;
  return NS_OK;
}

nsresult nsSimpleNestedURI::SetRef(const nsACString& aRef) {
  NS_ENSURE_TRUE(mInnerURI, NS_ERROR_NOT_INITIALIZED);

  nsCOMPtr<nsIURI> inner;
  nsresult rv = NS_MutateURI(mInnerURI).SetRef(aRef).Finalize(inner);
  NS_ENSURE_SUCCESS(rv, rv);
  rv = nsSimpleURI::SetRef(aRef);
  NS_ENSURE_SUCCESS(rv, rv);
  // If the regular SetRef worked, also set it on the inner URI
  mInnerURI = inner;
  return NS_OK;
}

// nsISerializable

NS_IMETHODIMP
nsSimpleNestedURI::Read(nsIObjectInputStream* aStream) {
  MOZ_ASSERT_UNREACHABLE("Use nsIURIMutator.read() instead");
  return NS_ERROR_NOT_IMPLEMENTED;
}

nsresult nsSimpleNestedURI::ReadPrivate(nsIObjectInputStream* aStream) {
  nsresult rv = nsSimpleURI::ReadPrivate(aStream);
  if (NS_FAILED(rv)) return rv;

  nsCOMPtr<nsISupports> supports;
  rv = aStream->ReadObject(true, getter_AddRefs(supports));
  if (NS_FAILED(rv)) return rv;

  mInnerURI = do_QueryInterface(supports, &rv);
  if (NS_FAILED(rv)) return rv;

  return rv;
}

NS_IMETHODIMP
nsSimpleNestedURI::Write(nsIObjectOutputStream* aStream) {
  nsCOMPtr<nsISerializable> serializable = do_QueryInterface(mInnerURI);
  if (!serializable) {
    // We can't serialize ourselves
    return NS_ERROR_NOT_AVAILABLE;
  }

  nsresult rv = nsSimpleURI::Write(aStream);
  if (NS_FAILED(rv)) return rv;

  rv = aStream->WriteCompoundObject(mInnerURI, NS_GET_IID(nsIURI), true);
  return rv;
}

NS_IMETHODIMP_(void)
nsSimpleNestedURI::Serialize(mozilla::ipc::URIParams& aParams) {
  using namespace mozilla::ipc;

  SimpleNestedURIParams params;
  URIParams simpleParams;

  nsSimpleURI::Serialize(simpleParams);
  params.simpleParams() = simpleParams;

  SerializeURI(mInnerURI, params.innerURI());

  aParams = params;
}

bool nsSimpleNestedURI::Deserialize(const mozilla::ipc::URIParams& aParams) {
  using namespace mozilla::ipc;

  if (aParams.type() != URIParams::TSimpleNestedURIParams) {
    NS_ERROR("Received unknown parameters from the other process!");
    return false;
  }

  const SimpleNestedURIParams& params = aParams.get_SimpleNestedURIParams();
  if (!nsSimpleURI::Deserialize(params.simpleParams())) return false;

  mInnerURI = DeserializeURI(params.innerURI());
  return true;
}

// nsINestedURI

NS_IMETHODIMP
nsSimpleNestedURI::GetInnerURI(nsIURI** aURI) {
  NS_ENSURE_TRUE(mInnerURI, NS_ERROR_NOT_INITIALIZED);

  nsCOMPtr<nsIURI> uri = mInnerURI;
  uri.forget(aURI);
  return NS_OK;
}

NS_IMETHODIMP
nsSimpleNestedURI::GetInnermostURI(nsIURI** uri) {
  return NS_ImplGetInnermostURI(this, uri);
}

// nsSimpleURI overrides
/* virtual */
nsresult nsSimpleNestedURI::EqualsInternal(
    nsIURI* other, nsSimpleURI::RefHandlingEnum refHandlingMode, bool* result) {
  *result = false;
  NS_ENSURE_TRUE(mInnerURI, NS_ERROR_NOT_INITIALIZED);

  if (other) {
    bool correctScheme;
    nsresult rv = other->SchemeIs(mScheme.get(), &correctScheme);
    NS_ENSURE_SUCCESS(rv, rv);

    if (correctScheme) {
      nsCOMPtr<nsINestedURI> nest = do_QueryInterface(other);
      if (nest) {
        nsCOMPtr<nsIURI> otherInner;
        rv = nest->GetInnerURI(getter_AddRefs(otherInner));
        NS_ENSURE_SUCCESS(rv, rv);

        return (refHandlingMode == eHonorRef)
                   ? otherInner->Equals(mInnerURI, result)
                   : otherInner->EqualsExceptRef(mInnerURI, result);
      }
    }
  }

  return NS_OK;
}

/* virtual */
nsSimpleURI* nsSimpleNestedURI::StartClone(
    nsSimpleURI::RefHandlingEnum refHandlingMode, const nsACString& newRef) {
  NS_ENSURE_TRUE(mInnerURI, nullptr);

  nsCOMPtr<nsIURI> innerClone;
  nsresult rv = NS_OK;
  if (refHandlingMode == eHonorRef) {
    innerClone = mInnerURI;
  } else if (refHandlingMode == eReplaceRef) {
    rv = NS_GetURIWithNewRef(mInnerURI, newRef, getter_AddRefs(innerClone));
  } else {
    rv = NS_GetURIWithoutRef(mInnerURI, getter_AddRefs(innerClone));
  }

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

  nsSimpleNestedURI* url = new nsSimpleNestedURI(innerClone);
  SetRefOnClone(url, refHandlingMode, newRef);

  return url;
}

// Queries this list of interfaces. If none match, it queries mURI.
NS_IMPL_NSIURIMUTATOR_ISUPPORTS(nsSimpleNestedURI::Mutator, nsIURISetters,
                                nsIURIMutator, nsISerializable,
                                nsINestedURIMutator)

NS_IMETHODIMP
nsSimpleNestedURI::Mutate(nsIURIMutator** aMutator) {
  RefPtr<nsSimpleNestedURI::Mutator> mutator = new nsSimpleNestedURI::Mutator();
  nsresult rv = mutator->InitFromURI(this);
  if (NS_FAILED(rv)) {
    return rv;
  }
  mutator.forget(aMutator);
  return NS_OK;
}

}  // namespace net
}  // namespace mozilla