gecko/netwerk/base/nsSerializationHelper.cpp

74 lines
2.0 KiB
C++

/* 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 "nsSerializationHelper.h"
#include "mozilla/Base64.h"
#include "nsISerializable.h"
#include "nsIObjectOutputStream.h"
#include "nsIObjectInputStream.h"
#include "nsString.h"
#include "nsBase64Encoder.h"
#include "nsAutoPtr.h"
#include "nsComponentManagerUtils.h"
#include "nsStringStream.h"
using namespace mozilla;
nsresult
NS_SerializeToString(nsISerializable* obj, nsCSubstring& str)
{
nsRefPtr<nsBase64Encoder> stream(new nsBase64Encoder());
if (!stream)
return NS_ERROR_OUT_OF_MEMORY;
nsCOMPtr<nsIObjectOutputStream> objstream =
do_CreateInstance("@mozilla.org/binaryoutputstream;1");
if (!objstream)
return NS_ERROR_OUT_OF_MEMORY;
objstream->SetOutputStream(stream);
nsresult rv =
objstream->WriteCompoundObject(obj, NS_GET_IID(nsISupports), true);
NS_ENSURE_SUCCESS(rv, rv);
return stream->Finish(str);
}
nsresult
NS_DeserializeObject(const nsCSubstring& str, nsISupports** obj)
{
nsCString decodedData;
nsresult rv = Base64Decode(str, decodedData);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIInputStream> stream;
rv = NS_NewCStringInputStream(getter_AddRefs(stream), decodedData);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIObjectInputStream> objstream =
do_CreateInstance("@mozilla.org/binaryinputstream;1");
if (!objstream)
return NS_ERROR_OUT_OF_MEMORY;
objstream->SetInputStream(stream);
return objstream->ReadObject(true, obj);
}
NS_IMPL_ISUPPORTS(nsSerializationHelper, nsISerializationHelper)
NS_IMETHODIMP
nsSerializationHelper::SerializeToString(nsISerializable *serializable,
nsACString & _retval)
{
return NS_SerializeToString(serializable, _retval);
}
NS_IMETHODIMP
nsSerializationHelper::DeserializeObject(const nsACString & input,
nsISupports **_retval)
{
return NS_DeserializeObject(input, _retval);
}