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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include <com/sun/star/xml/sax/XExtendedDocumentHandler.hpp>
#include <com/sun/star/xml/sax/XDocumentHandler.hpp>
#include <com/sun/star/xml/sax/XAttributeList.hpp>
#include <com/sun/star/xml/crypto/DigestID.hpp>
#include <com/sun/star/xml/crypto/CipherID.hpp>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/uno/RuntimeException.hpp>
#include <ManifestDefines.hxx>
#include <ManifestExport.hxx>
#include <Base64Codec.hxx>
#include <rtl/ustrbuf.hxx>
#include <comphelper/documentconstants.hxx>
#include <comphelper/attributelist.hxx>
using namespace ::com::sun::star;
using ::rtl::OUString;
using ::rtl::OUStringBuffer;
ManifestExport::ManifestExport( uno::Reference< xml::sax::XDocumentHandler > xHandler, const uno::Sequence< uno::Sequence < beans::PropertyValue > >& rManList )
{
const ::rtl::OUString sFileEntryElement ( RTL_CONSTASCII_USTRINGPARAM ( ELEMENT_FILE_ENTRY ) );
const ::rtl::OUString sManifestElement ( RTL_CONSTASCII_USTRINGPARAM ( ELEMENT_MANIFEST ) );
const ::rtl::OUString sEncryptionDataElement( RTL_CONSTASCII_USTRINGPARAM ( ELEMENT_ENCRYPTION_DATA ) );
const ::rtl::OUString sAlgorithmElement ( RTL_CONSTASCII_USTRINGPARAM ( ELEMENT_ALGORITHM ) );
const ::rtl::OUString sStartKeyGenerationElement ( RTL_CONSTASCII_USTRINGPARAM ( ELEMENT_START_KEY_GENERATION ) );
const ::rtl::OUString sKeyDerivationElement ( RTL_CONSTASCII_USTRINGPARAM ( ELEMENT_KEY_DERIVATION ) );
const ::rtl::OUString sCdataAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_CDATA ) );
const ::rtl::OUString sMediaTypeAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_MEDIA_TYPE ) );
const ::rtl::OUString sVersionAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_VERSION ) );
const ::rtl::OUString sFullPathAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_FULL_PATH ) );
const ::rtl::OUString sSizeAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_SIZE ) );
const ::rtl::OUString sKeySizeAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_KEY_SIZE ) );
const ::rtl::OUString sSaltAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_SALT ) );
const ::rtl::OUString sInitialisationVectorAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_INITIALISATION_VECTOR ) );
const ::rtl::OUString sIterationCountAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_ITERATION_COUNT ) );
const ::rtl::OUString sAlgorithmNameAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_ALGORITHM_NAME ) );
const ::rtl::OUString sStartKeyGenerationNameAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_START_KEY_GENERATION_NAME ) );
const ::rtl::OUString sKeyDerivationNameAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_KEY_DERIVATION_NAME ) );
const ::rtl::OUString sChecksumTypeAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_CHECKSUM_TYPE ) );
const ::rtl::OUString sChecksumAttribute ( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_CHECKSUM) );
const ::rtl::OUString sFullPathProperty ( RTL_CONSTASCII_USTRINGPARAM ( "FullPath" ) );
const ::rtl::OUString sVersionProperty ( RTL_CONSTASCII_USTRINGPARAM ( "Version" ) );
const ::rtl::OUString sMediaTypeProperty ( RTL_CONSTASCII_USTRINGPARAM ( "MediaType" ) );
const ::rtl::OUString sIterationCountProperty ( RTL_CONSTASCII_USTRINGPARAM ( "IterationCount" ) );
const ::rtl::OUString sDerivedKeySizeProperty ( RTL_CONSTASCII_USTRINGPARAM ( "DerivedKeySize" ) );
const ::rtl::OUString sSaltProperty ( RTL_CONSTASCII_USTRINGPARAM ( "Salt" ) );
const ::rtl::OUString sInitialisationVectorProperty( RTL_CONSTASCII_USTRINGPARAM ( "InitialisationVector" ) );
const ::rtl::OUString sSizeProperty ( RTL_CONSTASCII_USTRINGPARAM ( "Size" ) );
const ::rtl::OUString sDigestProperty ( RTL_CONSTASCII_USTRINGPARAM ( "Digest" ) );
const ::rtl::OUString sEncryptionAlgProperty ( RTL_CONSTASCII_USTRINGPARAM ( "EncryptionAlgorithm" ) );
const ::rtl::OUString sStartKeyAlgProperty ( RTL_CONSTASCII_USTRINGPARAM ( "StartKeyAlgorithm" ) );
const ::rtl::OUString sDigestAlgProperty ( RTL_CONSTASCII_USTRINGPARAM ( "DigestAlgorithm" ) );
const ::rtl::OUString sWhiteSpace ( RTL_CONSTASCII_USTRINGPARAM ( " " ) );
const ::rtl::OUString sSHA256_URL ( RTL_CONSTASCII_USTRINGPARAM ( SHA256_URL ) );
const ::rtl::OUString sSHA1_Name ( RTL_CONSTASCII_USTRINGPARAM ( SHA1_NAME ) );
const ::rtl::OUString sSHA1_1k_Name ( RTL_CONSTASCII_USTRINGPARAM ( SHA1_1K_NAME ) );
const ::rtl::OUString sSHA256_1k_URL ( RTL_CONSTASCII_USTRINGPARAM ( SHA256_1K_URL ) );
const ::rtl::OUString sBlowfish_Name ( RTL_CONSTASCII_USTRINGPARAM ( BLOWFISH_NAME ) );
const ::rtl::OUString sAES256_URL ( RTL_CONSTASCII_USTRINGPARAM ( AES256_URL ) );
const ::rtl::OUString sPBKDF2_Name ( RTL_CONSTASCII_USTRINGPARAM ( PBKDF2_NAME ) );
::comphelper::AttributeList * pRootAttrList = new ::comphelper::AttributeList;
const uno::Sequence < beans::PropertyValue > *pSequence = rManList.getConstArray();
const sal_uInt32 nManLength = rManList.getLength();
// find the mediatype of the document if any
::rtl::OUString aDocMediaType;
::rtl::OUString aDocVersion;
for (sal_uInt32 nInd = 0; nInd < nManLength ; nInd++ )
{
::rtl::OUString aMediaType;
::rtl::OUString aPath;
::rtl::OUString aVersion;
const beans::PropertyValue *pValue = pSequence[nInd].getConstArray();
for (sal_uInt32 j = 0, nNum = pSequence[nInd].getLength(); j < nNum; j++, pValue++)
{
if (pValue->Name.equals (sMediaTypeProperty) )
{
pValue->Value >>= aMediaType;
}
else if (pValue->Name.equals (sFullPathProperty) )
{
pValue->Value >>= aPath;
}
else if (pValue->Name.equals (sVersionProperty) )
{
pValue->Value >>= aVersion;
}
if ( !aPath.isEmpty() && !aMediaType.isEmpty() && !aVersion.isEmpty() )
break;
}
if ( aPath == "/" )
{
aDocMediaType = aMediaType;
aDocVersion = aVersion;
break;
}
}
sal_Bool bProvideDTD = sal_False;
sal_Bool bAcceptNonemptyVersion = sal_False;
sal_Bool bStoreStartKeyGeneration = sal_False;
if ( !aDocMediaType.isEmpty() )
{
if ( aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_TEXT_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_TEXT_WEB_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_TEXT_GLOBAL_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_DRAWING_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_PRESENTATION_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_SPREADSHEET_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_CHART_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_DATABASE_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_FORMULA_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_TEXT_TEMPLATE_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_DRAWING_TEMPLATE_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_PRESENTATION_TEMPLATE_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_SPREADSHEET_TEMPLATE_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_CHART_TEMPLATE_ASCII
|| aDocMediaType == MIMETYPE_OASIS_OPENDOCUMENT_FORMULA_TEMPLATE_ASCII )
{
// oasis format
pRootAttrList->AddAttribute ( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_XMLNS ) ),
sCdataAttribute,
::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( MANIFEST_OASIS_NAMESPACE ) ) );
bAcceptNonemptyVersion = sal_True;
if ( aDocVersion.compareTo( ODFVER_012_TEXT ) >= 0 )
{
// this is ODF12 generation, let encrypted streams contain start-key-generation entry
bStoreStartKeyGeneration = sal_True;
pRootAttrList->AddAttribute ( sVersionAttribute, sCdataAttribute, aDocVersion );
}
}
else
{
// even if it is no SO6 format the namespace must be specified
// thus SO6 format is used as default one
pRootAttrList->AddAttribute ( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( ATTRIBUTE_XMLNS ) ),
sCdataAttribute,
::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( MANIFEST_NAMESPACE ) ) );
bProvideDTD = sal_True;
}
}
uno::Reference < xml::sax::XAttributeList > xRootAttrList (pRootAttrList);
xHandler->startDocument();
uno::Reference < xml::sax::XExtendedDocumentHandler > xExtHandler ( xHandler, uno::UNO_QUERY );
if ( xExtHandler.is() && bProvideDTD )
{
::rtl::OUString aDocType ( RTL_CONSTASCII_USTRINGPARAM ( MANIFEST_DOCTYPE ) );
xExtHandler->unknown ( aDocType );
xHandler->ignorableWhitespace ( sWhiteSpace );
}
xHandler->startElement( sManifestElement, xRootAttrList );
for (sal_uInt32 i = 0 ; i < nManLength ; i++)
{
::comphelper::AttributeList *pAttrList = new ::comphelper::AttributeList;
const beans::PropertyValue *pValue = pSequence[i].getConstArray();
::rtl::OUString aString;
const uno::Any *pVector = NULL, *pSalt = NULL, *pIterationCount = NULL, *pDigest = NULL, *pDigestAlg = NULL, *pEncryptAlg = NULL, *pStartKeyAlg = NULL, *pDerivedKeySize = NULL;
for (sal_uInt32 j = 0, nNum = pSequence[i].getLength(); j < nNum; j++, pValue++)
{
if (pValue->Name.equals (sMediaTypeProperty) )
{
pValue->Value >>= aString;
pAttrList->AddAttribute ( sMediaTypeAttribute, sCdataAttribute, aString );
}
else if (pValue->Name.equals (sVersionProperty) )
{
pValue->Value >>= aString;
// the version is stored only if it is not empty
if ( bAcceptNonemptyVersion && !aString.isEmpty() )
pAttrList->AddAttribute ( sVersionAttribute, sCdataAttribute, aString );
}
else if (pValue->Name.equals (sFullPathProperty) )
{
pValue->Value >>= aString;
pAttrList->AddAttribute ( sFullPathAttribute, sCdataAttribute, aString );
}
else if (pValue->Name.equals (sSizeProperty) )
{
sal_Int32 nSize = 0;
pValue->Value >>= nSize;
::rtl::OUStringBuffer aBuffer;
aBuffer.append ( nSize );
pAttrList->AddAttribute ( sSizeAttribute, sCdataAttribute, aBuffer.makeStringAndClear() );
}
else if (pValue->Name.equals (sInitialisationVectorProperty) )
pVector = &pValue->Value;
else if (pValue->Name.equals (sSaltProperty) )
pSalt = &pValue->Value;
else if (pValue->Name.equals (sIterationCountProperty) )
pIterationCount = &pValue->Value;
else if (pValue->Name.equals ( sDigestProperty ) )
pDigest = &pValue->Value;
else if (pValue->Name.equals ( sDigestAlgProperty ) )
pDigestAlg = &pValue->Value;
else if (pValue->Name.equals ( sEncryptionAlgProperty ) )
pEncryptAlg = &pValue->Value;
else if (pValue->Name.equals ( sStartKeyAlgProperty ) )
pStartKeyAlg = &pValue->Value;
else if (pValue->Name.equals ( sDerivedKeySizeProperty ) )
pDerivedKeySize = &pValue->Value;
}
xHandler->ignorableWhitespace ( sWhiteSpace );
uno::Reference < xml::sax::XAttributeList > xAttrList ( pAttrList );
xHandler->startElement( sFileEntryElement , xAttrList);
if ( pVector && pSalt && pIterationCount && pDigest && pDigestAlg && pEncryptAlg && pStartKeyAlg && pDerivedKeySize )
{
// ==== Encryption Data
::comphelper::AttributeList * pNewAttrList = new ::comphelper::AttributeList;
uno::Reference < xml::sax::XAttributeList > xNewAttrList (pNewAttrList);
::rtl::OUStringBuffer aBuffer;
uno::Sequence < sal_Int8 > aSequence;
xHandler->ignorableWhitespace ( sWhiteSpace );
// ==== Digest
::rtl::OUString sChecksumType;
sal_Int32 nDigestAlgID = 0;
*pDigestAlg >>= nDigestAlgID;
if ( nDigestAlgID == xml::crypto::DigestID::SHA256_1K )
sChecksumType = sSHA256_1k_URL;
else if ( nDigestAlgID == xml::crypto::DigestID::SHA1_1K )
sChecksumType = sSHA1_1k_Name;
else
throw uno::RuntimeException( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( OSL_LOG_PREFIX "Unexpected digest algorithm is provided!" ) ), uno::Reference< uno::XInterface >() );
pNewAttrList->AddAttribute ( sChecksumTypeAttribute, sCdataAttribute, sChecksumType );
*pDigest >>= aSequence;
Base64Codec::encodeBase64( aBuffer, aSequence );
pNewAttrList->AddAttribute ( sChecksumAttribute, sCdataAttribute, aBuffer.makeStringAndClear() );
xHandler->startElement( sEncryptionDataElement , xNewAttrList);
// ==== Algorithm
pNewAttrList = new ::comphelper::AttributeList;
xNewAttrList = pNewAttrList;
sal_Int32 nEncAlgID = 0;
sal_Int32 nDerivedKeySize = 0;
*pEncryptAlg >>= nEncAlgID;
*pDerivedKeySize >>= nDerivedKeySize;
::rtl::OUString sEncAlgName;
if ( nEncAlgID == xml::crypto::CipherID::AES_CBC_W3C_PADDING )
{
OSL_ENSURE( nDerivedKeySize, "Unexpected key size is provided!" );
if ( nDerivedKeySize != 32 )
throw uno::RuntimeException( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( OSL_LOG_PREFIX "Unexpected key size is provided!" ) ), uno::Reference< uno::XInterface >() );
sEncAlgName = sAES256_URL;
}
else if ( nEncAlgID == xml::crypto::CipherID::BLOWFISH_CFB_8 )
{
sEncAlgName = sBlowfish_Name;
}
else
throw uno::RuntimeException( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( OSL_LOG_PREFIX "Unexpected encryption algorithm is provided!" ) ), uno::Reference< uno::XInterface >() );
pNewAttrList->AddAttribute ( sAlgorithmNameAttribute, sCdataAttribute, sEncAlgName );
*pVector >>= aSequence;
Base64Codec::encodeBase64 ( aBuffer, aSequence );
pNewAttrList->AddAttribute ( sInitialisationVectorAttribute, sCdataAttribute, aBuffer.makeStringAndClear() );
xHandler->ignorableWhitespace ( sWhiteSpace );
xHandler->startElement( sAlgorithmElement , xNewAttrList);
xHandler->ignorableWhitespace ( sWhiteSpace );
xHandler->endElement( sAlgorithmElement );
// ==== Key Derivation
pNewAttrList = new ::comphelper::AttributeList;
xNewAttrList = pNewAttrList;
pNewAttrList->AddAttribute ( sKeyDerivationNameAttribute, sCdataAttribute, sPBKDF2_Name );
if ( bStoreStartKeyGeneration )
{
aBuffer.append( nDerivedKeySize );
pNewAttrList->AddAttribute ( sKeySizeAttribute, sCdataAttribute, aBuffer.makeStringAndClear() );
}
sal_Int32 nCount = 0;
*pIterationCount >>= nCount;
aBuffer.append (nCount);
pNewAttrList->AddAttribute ( sIterationCountAttribute, sCdataAttribute, aBuffer.makeStringAndClear() );
*pSalt >>= aSequence;
Base64Codec::encodeBase64 ( aBuffer, aSequence );
pNewAttrList->AddAttribute ( sSaltAttribute, sCdataAttribute, aBuffer.makeStringAndClear() );
xHandler->ignorableWhitespace ( sWhiteSpace );
xHandler->startElement( sKeyDerivationElement , xNewAttrList);
xHandler->ignorableWhitespace ( sWhiteSpace );
xHandler->endElement( sKeyDerivationElement );
// we have to store start-key-generation element as the last one to workaround the parsing problem
// in OOo3.1 and older versions
if ( bStoreStartKeyGeneration )
{
// ==== Start Key Generation
pNewAttrList = new ::comphelper::AttributeList;
xNewAttrList = pNewAttrList;
::rtl::OUString sStartKeyAlg;
::rtl::OUString sStartKeySize;
sal_Int32 nStartKeyAlgID = 0;
*pStartKeyAlg >>= nStartKeyAlgID;
if ( nStartKeyAlgID == xml::crypto::DigestID::SHA256 )
{
sStartKeyAlg = sSHA256_URL;
aBuffer.append( (sal_Int32)32 );
sStartKeySize = aBuffer.makeStringAndClear();
}
else if ( nStartKeyAlgID == xml::crypto::DigestID::SHA1 )
{
sStartKeyAlg = sSHA1_Name;
aBuffer.append( (sal_Int32)20 );
sStartKeySize = aBuffer.makeStringAndClear();
}
else
throw uno::RuntimeException( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( OSL_LOG_PREFIX "Unexpected start key algorithm is provided!" ) ), uno::Reference< uno::XInterface >() );
pNewAttrList->AddAttribute ( sStartKeyGenerationNameAttribute, sCdataAttribute, sStartKeyAlg );
pNewAttrList->AddAttribute ( sKeySizeAttribute, sCdataAttribute, sStartKeySize );
xHandler->ignorableWhitespace ( sWhiteSpace );
xHandler->startElement( sStartKeyGenerationElement , xNewAttrList);
xHandler->ignorableWhitespace ( sWhiteSpace );
xHandler->endElement( sStartKeyGenerationElement );
}
xHandler->ignorableWhitespace ( sWhiteSpace );
xHandler->endElement( sEncryptionDataElement );
}
xHandler->ignorableWhitespace ( sWhiteSpace );
xHandler->endElement( sFileEntryElement );
}
xHandler->ignorableWhitespace ( sWhiteSpace );
xHandler->endElement( sManifestElement );
xHandler->endDocument();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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