xref: /trunk/main/package/source/package/zipapi/XUnbufferedStream.hxx (revision 873c956e)

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 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/


#ifndef _XUNBUFFERED_STREAM_HXX
#define _XUNBUFFERED_STREAM_HXX

#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/xml/crypto/XCipherContext.hpp>

#include <cppuhelper/implbase1.hxx>
#include <rtl/ref.hxx>
#include <Inflater.hxx>
#include <ZipEntry.hxx>
#include <CRC32.hxx>
#include <mutexholder.hxx>

#define UNBUFF_STREAM_DATA			0
#define UNBUFF_STREAM_RAW			1
#define UNBUFF_STREAM_WRAPPEDRAW	2

class EncryptionData;
class XUnbufferedStream : public cppu::WeakImplHelper1
<
	com::sun::star::io::XInputStream
>
{
protected:
    SotMutexHolderRef maMutexHolder;

	com::sun::star::uno::Reference < com::sun::star::io::XInputStream > mxZipStream;
	com::sun::star::uno::Reference < com::sun::star::io::XSeekable > mxZipSeek;
	com::sun::star::uno::Sequence < sal_Int8 > maCompBuffer, maHeader;
	ZipEntry maEntry;
	::rtl::Reference< EncryptionData > mxData;
    sal_Int32 mnBlockSize;
    ::com::sun::star::uno::Reference< ::com::sun::star::xml::crypto::XCipherContext > m_xCipherContext;
	Inflater maInflater;
	sal_Bool mbRawStream, mbWrappedRaw, mbFinished;
	sal_Int16 mnHeaderToRead;
	sal_Int64 mnZipCurrent, mnZipEnd, mnZipSize, mnMyCurrent;
	CRC32 maCRC;
	sal_Bool mbCheckCRC;

public:
	XUnbufferedStream(
                 const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xFactory,
                 SotMutexHolderRef aMutexHolder,
                 ZipEntry & rEntry,
				 com::sun::star::uno::Reference < com::sun::star::io::XInputStream > xNewZipStream,
				 const ::rtl::Reference< EncryptionData >& rData,
				 sal_Int8 nStreamMode,
				 sal_Bool bIsEncrypted,
				 const ::rtl::OUString& aMediaType,
				 sal_Bool bRecoveryMode );

	// allows to read package raw stream
	XUnbufferedStream(
                 const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xFactory,
                 const com::sun::star::uno::Reference < com::sun::star::io::XInputStream >& xRawStream,
				 const ::rtl::Reference< EncryptionData >& rData );


	virtual ~XUnbufferedStream();

	// XInputStream
    virtual sal_Int32 SAL_CALL readBytes( ::com::sun::star::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
		throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL readSomeBytes( ::com::sun::star::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
		throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip )
		throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL available(  )
		throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL closeInput(  )
		throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
	// XSeekable
	/*
    virtual void SAL_CALL seek( sal_Int64 location )
		throw(::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual sal_Int64 SAL_CALL getPosition(  )
		throw(::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual sal_Int64 SAL_CALL getLength(  )
		throw(::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
	*/
};
#endif