office-gobmx/package/source/manifest/ManifestImport.cxx
Michael Stahl f1117fbfcd tdf#105844 package: ODF wholesome encryption: use package version
... to init the Version property.

The problem is that the outer storage loaded from a wholesome ODF
encrypted document doesn't have a Version, because it doesn't (directly)
contain a document and has no "/" file-entry.

Extract the root element's package version attribute and use it.

The Storage API doesn't distinguish much between the package version and
the root document's (i.e. root folder's) version.

Change-Id: I0fd5f999e9adee674d73fc542402512d0e204897
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/161897
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>
2024-01-11 10:50:20 +01:00

618 lines
24 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#include "ManifestImport.hxx"
#include "ManifestDefines.hxx"
#include <PackageConstants.hxx>
#include <osl/diagnose.h>
#include <sal/log.hxx>
#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/xml/crypto/KDFID.hpp>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <comphelper/base64.hxx>
#include <comphelper/sequence.hxx>
using namespace com::sun::star::uno;
using namespace com::sun::star::beans;
using namespace com::sun::star;
constexpr OUStringLiteral gsFullPathProperty ( u"FullPath" );
constexpr OUStringLiteral gsMediaTypeProperty ( u"MediaType" );
constexpr OUStringLiteral gsVersionProperty ( u"Version" );
constexpr OUStringLiteral gsIterationCountProperty ( u"IterationCount" );
constexpr OUStringLiteral gsDerivedKeySizeProperty ( u"DerivedKeySize" );
constexpr OUStringLiteral gsSaltProperty ( u"Salt" );
constexpr OUStringLiteral gsInitialisationVectorProperty ( u"InitialisationVector" );
constexpr OUStringLiteral gsSizeProperty ( u"Size" );
constexpr OUStringLiteral gsDigestProperty ( u"Digest" );
constexpr OUString gsEncryptionAlgProperty ( u"EncryptionAlgorithm"_ustr );
constexpr OUString gsStartKeyAlgProperty ( u"StartKeyAlgorithm"_ustr );
constexpr OUString gsDigestAlgProperty ( u"DigestAlgorithm"_ustr );
ManifestImport::ManifestImport( std::vector < Sequence < PropertyValue > > & rNewManVector )
: bIgnoreEncryptData ( false )
, bPgpEncryption ( false )
, nDerivedKeySize( 0 )
, rManVector ( rNewManVector )
{
aStack.reserve( 10 );
}
ManifestImport::~ManifestImport()
{
}
void SAL_CALL ManifestImport::startDocument( )
{
}
void SAL_CALL ManifestImport::endDocument( )
{
}
void ManifestImport::doFileEntry(StringHashMap &rConvertedAttribs)
{
aSequence.resize(PKG_SIZE_ENCR_MNFST);
aSequence[PKG_MNFST_FULLPATH].Name = gsFullPathProperty;
aSequence[PKG_MNFST_FULLPATH].Value <<= rConvertedAttribs[ATTRIBUTE_FULL_PATH];
aSequence[PKG_MNFST_MEDIATYPE].Name = gsMediaTypeProperty;
aSequence[PKG_MNFST_MEDIATYPE].Value <<= rConvertedAttribs[ATTRIBUTE_MEDIA_TYPE];
OUString sVersion = rConvertedAttribs[ATTRIBUTE_VERSION];
if ( sVersion.getLength() ) {
aSequence[PKG_MNFST_VERSION].Name = gsVersionProperty;
aSequence[PKG_MNFST_VERSION].Value <<= sVersion;
}
OUString sSize = rConvertedAttribs[ATTRIBUTE_SIZE];
if ( sSize.getLength() ) {
sal_Int64 nSize = sSize.toInt64();
aSequence[PKG_MNFST_UCOMPSIZE].Name = gsSizeProperty;
aSequence[PKG_MNFST_UCOMPSIZE].Value <<= nSize;
}
}
void ManifestImport::doEncryptedKey(StringHashMap &)
{
aKeyInfoSequence.clear();
aKeyInfoSequence.resize(3);
}
void ManifestImport::doEncryptionMethod(StringHashMap &rConvertedAttribs,
const OUString& rAlgoAttrName)
{
OUString aString = rConvertedAttribs[rAlgoAttrName];
if ( aKeyInfoSequence.size() != 3
|| aString != "http://www.w3.org/2001/04/xmlenc#rsa-oaep-mgf1p" )
{
bIgnoreEncryptData = true;
}
}
void ManifestImport::doEncryptedCipherValue()
{
if ( aKeyInfoSequence.size() == 3 )
{
aKeyInfoSequence[2].Name = "CipherValue";
uno::Sequence < sal_Int8 > aDecodeBuffer;
::comphelper::Base64::decode(aDecodeBuffer, aCurrentCharacters);
aKeyInfoSequence[2].Value <<= aDecodeBuffer;
aCurrentCharacters.setLength(0); // consumed
}
else
bIgnoreEncryptData = true;
}
void ManifestImport::doEncryptedKeyId()
{
if ( aKeyInfoSequence.size() == 3 )
{
aKeyInfoSequence[0].Name = "KeyId";
uno::Sequence < sal_Int8 > aDecodeBuffer;
::comphelper::Base64::decode(aDecodeBuffer, aCurrentCharacters);
aKeyInfoSequence[0].Value <<= aDecodeBuffer;
aCurrentCharacters.setLength(0); // consumed
}
else
bIgnoreEncryptData = true;
}
void ManifestImport::doEncryptedKeyPacket()
{
if ( aKeyInfoSequence.size() == 3 )
{
aKeyInfoSequence[1].Name = "KeyPacket";
uno::Sequence < sal_Int8 > aDecodeBuffer;
::comphelper::Base64::decode(aDecodeBuffer, aCurrentCharacters);
aKeyInfoSequence[1].Value <<= aDecodeBuffer;
aCurrentCharacters.setLength(0); // consumed
}
else
bIgnoreEncryptData = true;
}
void ManifestImport::doEncryptionData(StringHashMap &rConvertedAttribs)
{
// If this element exists, then this stream is encrypted and we need
// to import the initialisation vector, salt and iteration count used
nDerivedKeySize = 0;
OUString aString = rConvertedAttribs[ATTRIBUTE_CHECKSUM_TYPE];
if ( bIgnoreEncryptData )
return;
if ( aString == SHA1_1K_NAME || aString == SHA1_1K_URL ) {
aSequence[PKG_MNFST_DIGESTALG].Name = gsDigestAlgProperty;
aSequence[PKG_MNFST_DIGESTALG].Value <<= xml::crypto::DigestID::SHA1_1K;
} else if ( aString == SHA256_1K_URL ) {
aSequence[PKG_MNFST_DIGESTALG].Name = gsDigestAlgProperty;
aSequence[PKG_MNFST_DIGESTALG].Value <<= xml::crypto::DigestID::SHA256_1K;
}
// note: digest is now *optional* - expected not to be used with AEAD
if (aSequence[PKG_MNFST_DIGESTALG].Value.hasValue()) {
aString = rConvertedAttribs[ATTRIBUTE_CHECKSUM];
uno::Sequence < sal_Int8 > aDecodeBuffer;
::comphelper::Base64::decode(aDecodeBuffer, aString);
aSequence[PKG_MNFST_DIGEST].Name = gsDigestProperty;
aSequence[PKG_MNFST_DIGEST].Value <<= aDecodeBuffer;
}
}
void ManifestImport::doAlgorithm(StringHashMap &rConvertedAttribs)
{
if ( bIgnoreEncryptData )
return;
OUString aString = rConvertedAttribs[ATTRIBUTE_ALGORITHM_NAME];
if ( aString == BLOWFISH_NAME || aString == BLOWFISH_URL ) {
aSequence[PKG_MNFST_ENCALG].Name = gsEncryptionAlgProperty;
aSequence[PKG_MNFST_ENCALG].Value <<= xml::crypto::CipherID::BLOWFISH_CFB_8;
} else if (aString == AESGCM256_URL) {
aSequence[PKG_MNFST_ENCALG].Name = gsEncryptionAlgProperty;
aSequence[PKG_MNFST_ENCALG].Value <<= xml::crypto::CipherID::AES_GCM_W3C;
SAL_INFO_IF(nDerivedKeySize != 0 && nDerivedKeySize != 32, "package.manifest", "Unexpected derived key length!");
nDerivedKeySize = 32;
} else if (aString == AESGCM192_URL) {
aSequence[PKG_MNFST_ENCALG].Name = gsEncryptionAlgProperty;
aSequence[PKG_MNFST_ENCALG].Value <<= xml::crypto::CipherID::AES_GCM_W3C;
SAL_INFO_IF(nDerivedKeySize != 0 && nDerivedKeySize != 24, "package.manifest", "Unexpected derived key length!");
nDerivedKeySize = 24;
} else if (aString == AESGCM128_URL) {
aSequence[PKG_MNFST_ENCALG].Name = gsEncryptionAlgProperty;
aSequence[PKG_MNFST_ENCALG].Value <<= xml::crypto::CipherID::AES_GCM_W3C;
SAL_INFO_IF(nDerivedKeySize != 0 && nDerivedKeySize != 16, "package.manifest", "Unexpected derived key length!");
nDerivedKeySize = 16;
} else if ( aString == AES256_URL ) {
aSequence[PKG_MNFST_ENCALG].Name = gsEncryptionAlgProperty;
aSequence[PKG_MNFST_ENCALG].Value <<= xml::crypto::CipherID::AES_CBC_W3C_PADDING;
OSL_ENSURE( !nDerivedKeySize || nDerivedKeySize == 32, "Unexpected derived key length!" );
nDerivedKeySize = 32;
} else if ( aString == AES192_URL ) {
aSequence[PKG_MNFST_ENCALG].Name = gsEncryptionAlgProperty;
aSequence[PKG_MNFST_ENCALG].Value <<= xml::crypto::CipherID::AES_CBC_W3C_PADDING;
OSL_ENSURE( !nDerivedKeySize || nDerivedKeySize == 24, "Unexpected derived key length!" );
nDerivedKeySize = 24;
} else if ( aString == AES128_URL ) {
aSequence[PKG_MNFST_ENCALG].Name = gsEncryptionAlgProperty;
aSequence[PKG_MNFST_ENCALG].Value <<= xml::crypto::CipherID::AES_CBC_W3C_PADDING;
OSL_ENSURE( !nDerivedKeySize || nDerivedKeySize == 16, "Unexpected derived key length!" );
nDerivedKeySize = 16;
} else
bIgnoreEncryptData = true;
if ( !bIgnoreEncryptData ) {
aString = rConvertedAttribs[ATTRIBUTE_INITIALISATION_VECTOR];
uno::Sequence < sal_Int8 > aDecodeBuffer;
::comphelper::Base64::decode(aDecodeBuffer, aString);
aSequence[PKG_MNFST_INIVECTOR].Name = gsInitialisationVectorProperty;
aSequence[PKG_MNFST_INIVECTOR].Value <<= aDecodeBuffer;
}
}
void ManifestImport::doKeyDerivation(StringHashMap &rConvertedAttribs)
{
if ( bIgnoreEncryptData )
return;
OUString aString = rConvertedAttribs[ATTRIBUTE_KEY_DERIVATION_NAME];
if (aString == PBKDF2_NAME || aString == PBKDF2_URL
|| aString == ARGON2ID_URL || aString == ARGON2ID_URL_LO)
{
aSequence[PKG_MNFST_KDF].Name = "KeyDerivationFunction";
if (aString == ARGON2ID_URL || aString == ARGON2ID_URL_LO)
{
aSequence[PKG_MNFST_KDF].Value <<= xml::crypto::KDFID::Argon2id;
aString = rConvertedAttribs.find(ATTRIBUTE_ARGON2_T) != rConvertedAttribs.end()
? rConvertedAttribs[ATTRIBUTE_ARGON2_T]
: rConvertedAttribs[ATTRIBUTE_ARGON2_T_LO];
sal_Int32 const t(aString.toInt32());
aString = rConvertedAttribs.find(ATTRIBUTE_ARGON2_M) != rConvertedAttribs.end()
? rConvertedAttribs[ATTRIBUTE_ARGON2_M]
: rConvertedAttribs[ATTRIBUTE_ARGON2_M_LO];
sal_Int32 const m(aString.toInt32());
aString = rConvertedAttribs.find(ATTRIBUTE_ARGON2_P) != rConvertedAttribs.end()
? rConvertedAttribs[ATTRIBUTE_ARGON2_P]
: rConvertedAttribs[ATTRIBUTE_ARGON2_P_LO];
sal_Int32 const p(aString.toInt32());
if (0 < t && 0 < m && 0 < p)
{
aSequence[PKG_MNFST_ARGON2ARGS].Name = "Argon2Args";
aSequence[PKG_MNFST_ARGON2ARGS].Value <<= uno::Sequence{t,m,p};
}
else
{
SAL_INFO("package.manifest", "invalid argon2 arguments");
bIgnoreEncryptData = true;
}
}
else
{
aSequence[PKG_MNFST_KDF].Value <<= xml::crypto::KDFID::PBKDF2;
aString = rConvertedAttribs[ATTRIBUTE_ITERATION_COUNT];
aSequence[PKG_MNFST_ITERATION].Name = gsIterationCountProperty;
aSequence[PKG_MNFST_ITERATION].Value <<= aString.toInt32();
}
aString = rConvertedAttribs[ATTRIBUTE_SALT];
uno::Sequence < sal_Int8 > aDecodeBuffer;
::comphelper::Base64::decode(aDecodeBuffer, aString);
aSequence[PKG_MNFST_SALT].Name = gsSaltProperty;
aSequence[PKG_MNFST_SALT].Value <<= aDecodeBuffer;
aString = rConvertedAttribs[ATTRIBUTE_KEY_SIZE];
if ( aString.getLength() ) {
sal_Int32 nKey = aString.toInt32();
OSL_ENSURE( !nDerivedKeySize || nKey == nDerivedKeySize , "Provided derived key length differs from the expected one!" );
nDerivedKeySize = nKey;
} else if ( !nDerivedKeySize )
nDerivedKeySize = 16;
else if ( nDerivedKeySize != 16 )
OSL_ENSURE( false, "Default derived key length differs from the expected one!" );
aSequence[PKG_MNFST_DERKEYSIZE].Name = gsDerivedKeySizeProperty;
aSequence[PKG_MNFST_DERKEYSIZE].Value <<= nDerivedKeySize;
} else if ( bPgpEncryption ) {
if (aString == "PGP") {
aSequence[PKG_MNFST_KDF].Name = "KeyDerivationFunction";
aSequence[PKG_MNFST_KDF].Value <<= xml::crypto::KDFID::PGP_RSA_OAEP_MGF1P;
} else {
bIgnoreEncryptData = true;
}
} else
bIgnoreEncryptData = true;
}
void ManifestImport::doStartKeyAlg(StringHashMap &rConvertedAttribs)
{
OUString aString = rConvertedAttribs[ATTRIBUTE_START_KEY_GENERATION_NAME];
if (aString == SHA256_URL || aString == SHA256_URL_ODF12) {
aSequence[PKG_MNFST_STARTALG].Name = gsStartKeyAlgProperty;
aSequence[PKG_MNFST_STARTALG].Value <<= xml::crypto::DigestID::SHA256;
} else if ( aString == SHA1_NAME || aString == SHA1_URL ) {
aSequence[PKG_MNFST_STARTALG].Name = gsStartKeyAlgProperty;
aSequence[PKG_MNFST_STARTALG].Value <<= xml::crypto::DigestID::SHA1;
} else
bIgnoreEncryptData = true;
}
void SAL_CALL ManifestImport::startElement( const OUString& aName, const uno::Reference< xml::sax::XAttributeList >& xAttribs )
{
StringHashMap aConvertedAttribs;
OUString aConvertedName = PushNameAndNamespaces( aName, xAttribs, aConvertedAttribs );
size_t nLevel = aStack.size();
assert(nLevel >= 1);
switch (nLevel) {
case 1: {
m_PackageVersion = aConvertedAttribs[ATTRIBUTE_VERSION];
if (aConvertedName != ELEMENT_MANIFEST) //manifest:manifest
aStack.back().m_bValid = false;
break;
}
case 2: {
if (aConvertedName == ELEMENT_FILE_ENTRY) //manifest:file-entry
doFileEntry(aConvertedAttribs);
else if (aConvertedName == ELEMENT_MANIFEST_KEYINFO) //loext:keyinfo
;
else if (aConvertedName == ELEMENT_ENCRYPTEDKEY13) //manifest:encrypted-key
doEncryptedKey(aConvertedAttribs);
else
aStack.back().m_bValid = false;
break;
}
case 3: {
ManifestStack::reverse_iterator aIter = aStack.rbegin();
++aIter;
if (!aIter->m_bValid)
aStack.back().m_bValid = false;
else if (aConvertedName == ELEMENT_ENCRYPTION_DATA) //manifest:encryption-data
doEncryptionData(aConvertedAttribs);
else if (aConvertedName == ELEMENT_ENCRYPTEDKEY) //loext:encrypted-key
doEncryptedKey(aConvertedAttribs);
else if (aConvertedName == ELEMENT_ENCRYPTIONMETHOD13) //manifest:encryption-method
doEncryptionMethod(aConvertedAttribs, ATTRIBUTE_ALGORITHM13);
else if (aConvertedName == ELEMENT_MANIFEST13_KEYINFO) //manifest:keyinfo
;
else if (aConvertedName == ELEMENT_CIPHERDATA13) //manifest:CipherData
;
else
aStack.back().m_bValid = false;
break;
}
case 4: {
ManifestStack::reverse_iterator aIter = aStack.rbegin();
++aIter;
if (!aIter->m_bValid)
aStack.back().m_bValid = false;
else if (aConvertedName == ELEMENT_ALGORITHM) //manifest:algorithm,
doAlgorithm(aConvertedAttribs);
else if (aConvertedName == ELEMENT_KEY_DERIVATION) //manifest:key-derivation,
doKeyDerivation(aConvertedAttribs);
else if (aConvertedName == ELEMENT_START_KEY_GENERATION) //manifest:start-key-generation
doStartKeyAlg(aConvertedAttribs);
else if (aConvertedName == ELEMENT_ENCRYPTIONMETHOD) //loext:encryption-method
doEncryptionMethod(aConvertedAttribs, ATTRIBUTE_ALGORITHM);
else if (aConvertedName == ELEMENT_ENCRYPTED_KEYINFO) //loext:KeyInfo
;
else if (aConvertedName == ELEMENT_CIPHERDATA) //loext:CipherData
;
else if (aConvertedName == ELEMENT_PGPDATA13) //manifest:PGPData
;
else if (aConvertedName == ELEMENT_CIPHERVALUE13) //manifest:CipherValue
// ciphervalue action happens on endElement
aCurrentCharacters = "";
else
aStack.back().m_bValid = false;
break;
}
case 5: {
ManifestStack::reverse_iterator aIter = aStack.rbegin();
++aIter;
if (!aIter->m_bValid)
aStack.back().m_bValid = false;
else if (aConvertedName == ELEMENT_PGPDATA) //loext:PGPData
;
else if (aConvertedName == ELEMENT_CIPHERVALUE) //loext:CipherValue
// ciphervalue action happens on endElement
aCurrentCharacters = "";
else if (aConvertedName == ELEMENT_PGPKEYID13) //manifest:PGPKeyID
// ciphervalue action happens on endElement
aCurrentCharacters = "";
else if (aConvertedName == ELEMENT_PGPKEYPACKET13) //manifest:PGPKeyPacket
// ciphervalue action happens on endElement
aCurrentCharacters = "";
else
aStack.back().m_bValid = false;
break;
}
case 6: {
ManifestStack::reverse_iterator aIter = aStack.rbegin();
++aIter;
if (!aIter->m_bValid)
aStack.back().m_bValid = false;
else if (aConvertedName == ELEMENT_PGPKEYID) //loext:PGPKeyID
// ciphervalue action happens on endElement
aCurrentCharacters = "";
else if (aConvertedName == ELEMENT_PGPKEYPACKET) //loext:PGPKeyPacket
// ciphervalue action happens on endElement
aCurrentCharacters = "";
else
aStack.back().m_bValid = false;
break;
}
default:
aStack.back().m_bValid = false;
break;
}
}
namespace
{
bool isEmpty(const css::beans::PropertyValue &rProp)
{
return rProp.Name.isEmpty();
}
}
void SAL_CALL ManifestImport::endElement( const OUString& aName )
{
size_t nLevel = aStack.size();
assert(nLevel >= 1);
OUString aConvertedName = ConvertName( aName );
if ( aStack.empty() || aStack.rbegin()->m_aConvertedName != aConvertedName )
return;
if ( aConvertedName == ELEMENT_FILE_ENTRY && aStack.back().m_bValid ) {
// required for wholesome encryption: if there is no document and hence
// no file-entry with a version attribute, send the package's version
// with the first file-entry.
// (note: the only case when a valid ODF document has no "/" entry with
// a version is when it is ODF 1.0/1.1 and then it doesn't have the
// package version either)
if (rManVector.empty() && !m_PackageVersion.isEmpty()
&& !aSequence[PKG_MNFST_VERSION].Value.hasValue())
{
aSequence[PKG_MNFST_VERSION].Name = u"Version"_ustr;
aSequence[PKG_MNFST_VERSION].Value <<= m_PackageVersion;
}
// the first entry gets KeyInfo element if any, for PGP encryption
if (!bIgnoreEncryptData && !aKeys.empty() && rManVector.empty())
{
aSequence[PKG_MNFST_KEYINFO].Name = "KeyInfo";
aSequence[PKG_MNFST_KEYINFO].Value <<= comphelper::containerToSequence(aKeys);
}
std::erase_if(aSequence, isEmpty);
bIgnoreEncryptData = false;
rManVector.push_back ( comphelper::containerToSequence(aSequence) );
aSequence.clear();
}
else if ( (aConvertedName == ELEMENT_ENCRYPTEDKEY
|| aConvertedName == ELEMENT_ENCRYPTEDKEY13)
&& aStack.back().m_bValid ) {
if ( !bIgnoreEncryptData )
{
aKeys.push_back( comphelper::containerToSequence(aKeyInfoSequence) );
bPgpEncryption = true;
}
aKeyInfoSequence.clear();
}
// end element handling for elements with cdata
switch (nLevel) {
case 4: {
if (aConvertedName == ELEMENT_CIPHERVALUE13) //manifest:CipherValue
doEncryptedCipherValue();
else
aStack.back().m_bValid = false;
break;
}
case 5: {
if (aConvertedName == ELEMENT_CIPHERVALUE) //loext:CipherValue
doEncryptedCipherValue();
else if (aConvertedName == ELEMENT_PGPKEYID13) //manifest:PGPKeyID
doEncryptedKeyId();
else if (aConvertedName == ELEMENT_PGPKEYPACKET13) //manifest:PGPKeyPacket
doEncryptedKeyPacket();
else
aStack.back().m_bValid = false;
break;
}
case 6: {
if (aConvertedName == ELEMENT_PGPKEYID) //loext:PGPKeyID
doEncryptedKeyId();
else if (aConvertedName == ELEMENT_PGPKEYPACKET) //loext:PGPKeyPacket
doEncryptedKeyPacket();
else
aStack.back().m_bValid = false;
break;
}
}
aStack.pop_back();
}
void SAL_CALL ManifestImport::characters( const OUString& aChars )
{
aCurrentCharacters.append(aChars);
}
void SAL_CALL ManifestImport::ignorableWhitespace( const OUString& /*aWhitespaces*/ )
{
}
void SAL_CALL ManifestImport::processingInstruction( const OUString& /*aTarget*/, const OUString& /*aData*/ )
{
}
void SAL_CALL ManifestImport::setDocumentLocator( const uno::Reference< xml::sax::XLocator >& /*xLocator*/ )
{
}
OUString ManifestImport::PushNameAndNamespaces( const OUString& aName, const uno::Reference< xml::sax::XAttributeList >& xAttribs, StringHashMap& o_aConvertedAttribs )
{
StringHashMap aNamespaces;
::std::vector< ::std::pair< OUString, OUString > > aAttribsStrs;
if ( xAttribs.is() ) {
sal_Int16 nAttrCount = xAttribs.is() ? xAttribs->getLength() : 0;
aAttribsStrs.reserve( nAttrCount );
for( sal_Int16 nInd = 0; nInd < nAttrCount; nInd++ ) {
OUString aAttrName = xAttribs->getNameByIndex( nInd );
OUString aAttrValue = xAttribs->getValueByIndex( nInd );
if ( aAttrName.getLength() >= 5
&& aAttrName.startsWith("xmlns")
&& ( aAttrName.getLength() == 5 || aAttrName[5] == ':' ) ) {
// this is a namespace declaration
OUString aNsName( ( aAttrName.getLength() == 5 ) ? OUString() : aAttrName.copy( 6 ) );
aNamespaces[aNsName] = aAttrValue;
} else {
// this is no namespace declaration
aAttribsStrs.emplace_back( aAttrName, aAttrValue );
}
}
}
OUString aConvertedName = ConvertNameWithNamespace( aName, aNamespaces );
if ( !aConvertedName.getLength() )
aConvertedName = ConvertName( aName );
aStack.emplace_back( aConvertedName, std::move(aNamespaces) );
for (const std::pair<OUString,OUString> & rAttribsStr : aAttribsStrs) {
// convert the attribute names on filling
o_aConvertedAttribs[ConvertName( rAttribsStr.first )] = rAttribsStr.second;
}
return aConvertedName;
}
OUString ManifestImport::ConvertNameWithNamespace( const OUString& aName, const StringHashMap& aNamespaces )
{
OUString aNsAlias;
OUString aPureName = aName;
sal_Int32 nInd = aName.indexOf( ':' );
if ( nInd != -1 && nInd < aName.getLength() ) {
aNsAlias = aName.copy( 0, nInd );
aPureName = aName.copy( nInd + 1 );
}
OUString aResult;
StringHashMap::const_iterator aIter = aNamespaces.find( aNsAlias );
if ( aIter != aNamespaces.end()
&& ( aIter->second == MANIFEST_NAMESPACE || aIter->second == MANIFEST_OASIS_NAMESPACE ) ) {
// no check for manifest.xml consistency currently since the old versions have supported inconsistent documents as well
aResult = MANIFEST_NSPREFIX + aPureName;
}
return aResult;
}
OUString ManifestImport::ConvertName( const OUString& aName )
{
OUString aConvertedName;
for ( ManifestStack::reverse_iterator aIter = aStack.rbegin(); !aConvertedName.getLength() && aIter != aStack.rend(); ++aIter ) {
if ( !aIter->m_aNamespaces.empty() )
aConvertedName = ConvertNameWithNamespace( aName, aIter->m_aNamespaces );
}
if ( !aConvertedName.getLength() )
aConvertedName = aName;
return aConvertedName;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */