diff options
Diffstat (limited to 'package/source/zipapi/ZipFile.cxx')
| -rw-r--r-- | package/source/zipapi/ZipFile.cxx | 512 |
1 files changed, 270 insertions, 242 deletions
diff --git a/package/source/zipapi/ZipFile.cxx b/package/source/zipapi/ZipFile.cxx index 4c6115f21768..13b7ba05e600 100644 --- a/package/source/zipapi/ZipFile.cxx +++ b/package/source/zipapi/ZipFile.cxx @@ -28,29 +28,36 @@ // MARKER(update_precomp.py): autogen include statement, do not remove #include "precompiled_package.hxx" -#include <ZipFile.hxx> -#include <ZipEnumeration.hxx> + +#include <com/sun/star/lang/XMultiServiceFactory.hpp> +#include <com/sun/star/ucb/XProgressHandler.hpp> #include <com/sun/star/packages/zip/ZipConstants.hpp> -#include <rtl/cipher.h> +#include <com/sun/star/xml/crypto/XCipherContext.hpp> +#include <com/sun/star/xml/crypto/XDigestContext.hpp> +#include <com/sun/star/xml/crypto/XCipherContextSupplier.hpp> +#include <com/sun/star/xml/crypto/XDigestContextSupplier.hpp> +#include <com/sun/star/xml/crypto/CipherID.hpp> +#include <com/sun/star/xml/crypto/DigestID.hpp> + +#include <comphelper/storagehelper.hxx> +#include <comphelper/processfactory.hxx> #include <rtl/digest.h> -/* -#include <XMemoryStream.hxx> -#include <XFileStream.hxx> -*/ + +#include <vector> + +#include "blowfishcontext.hxx" +#include "sha1context.hxx" +#include <ZipFile.hxx> +#include <ZipEnumeration.hxx> #include <XUnbufferedStream.hxx> #include <PackageConstants.hxx> #include <EncryptedDataHeader.hxx> #include <EncryptionData.hxx> #include <MemoryByteGrabber.hxx> -#include <com/sun/star/lang/XMultiServiceFactory.hpp> -#include <com/sun/star/ucb/XProgressHandler.hpp> #include <CRC32.hxx> -#include <string.h> // for memcpy -#include <vector> - -#include <comphelper/storagehelper.hxx> +#define AES_CBC_BLOCK_SIZE 16 using namespace com::sun::star; using namespace com::sun::star::io; @@ -66,13 +73,13 @@ using ZipUtils::Inflater; /** This class is used to read entries from a zip file */ -ZipFile::ZipFile( Reference < XInputStream > &xInput, const Reference < XMultiServiceFactory > &xNewFactory, sal_Bool bInitialise ) +ZipFile::ZipFile( uno::Reference < XInputStream > &xInput, const uno::Reference < XMultiServiceFactory > &xNewFactory, sal_Bool bInitialise ) throw(IOException, ZipException, RuntimeException) : aGrabber(xInput) , aInflater (sal_True) , xStream(xInput) , xSeek(xInput, UNO_QUERY) -, xFactory ( xNewFactory ) +, m_xFactory ( xNewFactory ) , bRecoveryMode( sal_False ) { if (bInitialise) @@ -80,20 +87,20 @@ ZipFile::ZipFile( Reference < XInputStream > &xInput, const Reference < XMultiSe if ( readCEN() == -1 ) { aEntries.clear(); - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "stream data looks to be broken" ) ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "stream data looks to be broken" ) ), uno::Reference < XInterface > () ); } } } -ZipFile::ZipFile( Reference < XInputStream > &xInput, const Reference < XMultiServiceFactory > &xNewFactory, sal_Bool bInitialise, sal_Bool bForceRecovery, Reference < XProgressHandler > xProgress ) +ZipFile::ZipFile( uno::Reference < XInputStream > &xInput, const uno::Reference < XMultiServiceFactory > &xNewFactory, sal_Bool bInitialise, sal_Bool bForceRecovery, uno::Reference < XProgressHandler > xProgress ) throw(IOException, ZipException, RuntimeException) : aGrabber(xInput) , aInflater (sal_True) , xStream(xInput) , xSeek(xInput, UNO_QUERY) -, xFactory ( xNewFactory ) +, m_xFactory ( xNewFactory ) , xProgressHandler( xProgress ) , bRecoveryMode( bForceRecovery ) { @@ -106,7 +113,7 @@ ZipFile::ZipFile( Reference < XInputStream > &xInput, const Reference < XMultiSe else if ( readCEN() == -1 ) { aEntries.clear(); - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "stream data looks to be broken" ) ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "stream data looks to be broken" ) ), uno::Reference < XInterface > () ); } } } @@ -116,55 +123,94 @@ ZipFile::~ZipFile() aEntries.clear(); } -void ZipFile::setInputStream ( Reference < XInputStream > xNewStream ) +void ZipFile::setInputStream ( uno::Reference < XInputStream > xNewStream ) { ::osl::MutexGuard aGuard( m_aMutex ); xStream = xNewStream; - xSeek = Reference < XSeekable > ( xStream, UNO_QUERY ); + xSeek = uno::Reference < XSeekable > ( xStream, UNO_QUERY ); aGrabber.setInputStream ( xStream ); } -sal_Bool ZipFile::StaticGetCipher ( const rtl::Reference < EncryptionData > & xEncryptionData, rtlCipher &rCipher, sal_Bool bDecode ) +uno::Reference< xml::crypto::XDigestContext > ZipFile::StaticGetDigestContextForChecksum( const uno::Reference< lang::XMultiServiceFactory >& xArgFactory, const ::rtl::Reference< EncryptionData >& xEncryptionData ) { - sal_Bool bResult = sal_False; - if ( xEncryptionData.is() ) + uno::Reference< xml::crypto::XDigestContext > xDigestContext; + if ( xEncryptionData->m_nCheckAlg == xml::crypto::DigestID::SHA256_1K ) { - Sequence < sal_uInt8 > aDerivedKey (16); - rtlCipherError aResult; - Sequence < sal_Int8 > aDecryptBuffer; - - // Get the key - rtl_digest_PBKDF2 ( aDerivedKey.getArray(), 16, - reinterpret_cast < const sal_uInt8 * > (xEncryptionData->aKey.getConstArray() ), - xEncryptionData->aKey.getLength(), - reinterpret_cast < const sal_uInt8 * > ( xEncryptionData->aSalt.getConstArray() ), - xEncryptionData->aSalt.getLength(), - xEncryptionData->nIterationCount ); - - rCipher = rtl_cipher_create (rtl_Cipher_AlgorithmBF, rtl_Cipher_ModeStream); - aResult = rtl_cipher_init( rCipher, bDecode ? rtl_Cipher_DirectionDecode : rtl_Cipher_DirectionEncode, - aDerivedKey.getConstArray(), - aDerivedKey.getLength(), - reinterpret_cast < const sal_uInt8 * > ( xEncryptionData->aInitVector.getConstArray() ), - xEncryptionData->aInitVector.getLength()); - OSL_ASSERT (aResult == rtl_Cipher_E_None); - - bResult = ( aResult == rtl_Cipher_E_None ); + uno::Reference< lang::XMultiServiceFactory > xFactory = xArgFactory; + if ( !xFactory.is() ) + xFactory.set( comphelper::getProcessServiceFactory(), uno::UNO_SET_THROW ); + + uno::Reference< xml::crypto::XDigestContextSupplier > xDigestContextSupplier( + xFactory->createInstance( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.xml.crypto.NSSInitializer" ) ) ), + uno::UNO_QUERY_THROW ); + + xDigestContext.set( xDigestContextSupplier->getDigestContext( xEncryptionData->m_nCheckAlg, uno::Sequence< beans::NamedValue >() ), uno::UNO_SET_THROW ); } + else if ( xEncryptionData->m_nCheckAlg == xml::crypto::DigestID::SHA1_1K ) + xDigestContext.set( SHA1DigestContext::Create(), uno::UNO_SET_THROW ); - return bResult; + return xDigestContext; } -void ZipFile::StaticFillHeader ( const rtl::Reference < EncryptionData > & rData, +uno::Reference< xml::crypto::XCipherContext > ZipFile::StaticGetCipher( const uno::Reference< lang::XMultiServiceFactory >& xArgFactory, const ::rtl::Reference< EncryptionData >& xEncryptionData, bool bEncrypt ) +{ + uno::Reference< xml::crypto::XCipherContext > xResult; + + try + { + uno::Sequence< sal_Int8 > aDerivedKey( xEncryptionData->m_nDerivedKeySize ); + if ( rtl_Digest_E_None != rtl_digest_PBKDF2( reinterpret_cast< sal_uInt8* >( aDerivedKey.getArray() ), + aDerivedKey.getLength(), + reinterpret_cast< const sal_uInt8 * > (xEncryptionData->m_aKey.getConstArray() ), + xEncryptionData->m_aKey.getLength(), + reinterpret_cast< const sal_uInt8 * > ( xEncryptionData->m_aSalt.getConstArray() ), + xEncryptionData->m_aSalt.getLength(), + xEncryptionData->m_nIterationCount ) ) + { + throw ZipIOException( ::rtl::OUString::createFromAscii( "Can not create derived key!\n" ), + uno::Reference< XInterface >() ); + } + + if ( xEncryptionData->m_nEncAlg == xml::crypto::CipherID::AES_CBC_W3C_PADDING ) + { + uno::Reference< lang::XMultiServiceFactory > xFactory = xArgFactory; + if ( !xFactory.is() ) + xFactory.set( comphelper::getProcessServiceFactory(), uno::UNO_SET_THROW ); + + uno::Reference< xml::crypto::XCipherContextSupplier > xCipherContextSupplier( + xFactory->createInstance( rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.xml.crypto.NSSInitializer" ) ) ), + uno::UNO_QUERY_THROW ); + + xResult = xCipherContextSupplier->getCipherContext( xEncryptionData->m_nEncAlg, aDerivedKey, xEncryptionData->m_aInitVector, bEncrypt, uno::Sequence< beans::NamedValue >() ); + } + else if ( xEncryptionData->m_nEncAlg == xml::crypto::CipherID::BLOWFISH_CFB_8 ) + { + xResult = BlowfishCFB8CipherContext::Create( aDerivedKey, xEncryptionData->m_aInitVector, bEncrypt ); + } + else + { + throw ZipIOException( ::rtl::OUString::createFromAscii( "Unknown cipher algorithm is requested!\n" ), + uno::Reference< XInterface >() ); + } + } + catch( uno::Exception& ) + { + OSL_ENSURE( sal_False, "Can not create cipher context!" ); + } + + return xResult; +} + +void ZipFile::StaticFillHeader( const ::rtl::Reference< EncryptionData >& rData, sal_Int32 nSize, const ::rtl::OUString& aMediaType, sal_Int8 * & pHeader ) { // I think it's safe to restrict vector and salt length to 2 bytes ! - sal_Int16 nIVLength = static_cast < sal_Int16 > ( rData->aInitVector.getLength() ); - sal_Int16 nSaltLength = static_cast < sal_Int16 > ( rData->aSalt.getLength() ); - sal_Int16 nDigestLength = static_cast < sal_Int16 > ( rData->aDigest.getLength() ); + sal_Int16 nIVLength = static_cast < sal_Int16 > ( rData->m_aInitVector.getLength() ); + sal_Int16 nSaltLength = static_cast < sal_Int16 > ( rData->m_aSalt.getLength() ); + sal_Int16 nDigestLength = static_cast < sal_Int16 > ( rData->m_aDigest.getLength() ); sal_Int16 nMediaTypeLength = static_cast < sal_Int16 > ( aMediaType.getLength() * sizeof( sal_Unicode ) ); // First the header @@ -178,7 +224,7 @@ void ZipFile::StaticFillHeader ( const rtl::Reference < EncryptionData > & rData *(pHeader++) = ( n_ConstCurrentVersion >> 8 ) & 0xFF; // Then the iteration Count - sal_Int32 nIterationCount = rData->nIterationCount; + sal_Int32 nIterationCount = rData->m_nIterationCount; *(pHeader++) = static_cast< sal_Int8 >(( nIterationCount >> 0 ) & 0xFF); *(pHeader++) = static_cast< sal_Int8 >(( nIterationCount >> 8 ) & 0xFF); *(pHeader++) = static_cast< sal_Int8 >(( nIterationCount >> 16 ) & 0xFF); @@ -190,6 +236,34 @@ void ZipFile::StaticFillHeader ( const rtl::Reference < EncryptionData > & rData *(pHeader++) = static_cast< sal_Int8 >(( nSize >> 16 ) & 0xFF); *(pHeader++) = static_cast< sal_Int8 >(( nSize >> 24 ) & 0xFF); + // Then the encryption algorithm + sal_Int32 nEncAlgID = rData->m_nEncAlg; + *(pHeader++) = static_cast< sal_Int8 >(( nEncAlgID >> 0 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nEncAlgID >> 8 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nEncAlgID >> 16 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nEncAlgID >> 24 ) & 0xFF); + + // Then the checksum algorithm + sal_Int32 nChecksumAlgID = rData->m_nCheckAlg; + *(pHeader++) = static_cast< sal_Int8 >(( nChecksumAlgID >> 0 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nChecksumAlgID >> 8 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nChecksumAlgID >> 16 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nChecksumAlgID >> 24 ) & 0xFF); + + // Then the derived key size + sal_Int32 nDerivedKeySize = rData->m_nDerivedKeySize; + *(pHeader++) = static_cast< sal_Int8 >(( nDerivedKeySize >> 0 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nDerivedKeySize >> 8 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nDerivedKeySize >> 16 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nDerivedKeySize >> 24 ) & 0xFF); + + // Then the start key generation algorithm + sal_Int32 nKeyAlgID = rData->m_nStartKeyGenID; + *(pHeader++) = static_cast< sal_Int8 >(( nKeyAlgID >> 0 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nKeyAlgID >> 8 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nKeyAlgID >> 16 ) & 0xFF); + *(pHeader++) = static_cast< sal_Int8 >(( nKeyAlgID >> 24 ) & 0xFF); + // Then the salt length *(pHeader++) = static_cast< sal_Int8 >(( nSaltLength >> 0 ) & 0xFF); *(pHeader++) = static_cast< sal_Int8 >(( nSaltLength >> 8 ) & 0xFF); @@ -207,26 +281,30 @@ void ZipFile::StaticFillHeader ( const rtl::Reference < EncryptionData > & rData *(pHeader++) = static_cast< sal_Int8 >(( nMediaTypeLength >> 8 ) & 0xFF); // Then the salt content - memcpy ( pHeader, rData->aSalt.getConstArray(), nSaltLength ); + rtl_copyMemory ( pHeader, rData->m_aSalt.getConstArray(), nSaltLength ); pHeader += nSaltLength; // Then the IV content - memcpy ( pHeader, rData->aInitVector.getConstArray(), nIVLength ); + rtl_copyMemory ( pHeader, rData->m_aInitVector.getConstArray(), nIVLength ); pHeader += nIVLength; // Then the digest content - memcpy ( pHeader, rData->aDigest.getConstArray(), nDigestLength ); + rtl_copyMemory ( pHeader, rData->m_aDigest.getConstArray(), nDigestLength ); pHeader += nDigestLength; // Then the mediatype itself - memcpy ( pHeader, aMediaType.getStr(), nMediaTypeLength ); + rtl_copyMemory ( pHeader, aMediaType.getStr(), nMediaTypeLength ); pHeader += nMediaTypeLength; } -sal_Bool ZipFile::StaticFillData ( rtl::Reference < EncryptionData > & rData, +sal_Bool ZipFile::StaticFillData ( ::rtl::Reference< BaseEncryptionData > & rData, + sal_Int32 &rEncAlg, + sal_Int32 &rChecksumAlg, + sal_Int32 &rDerivedKeySize, + sal_Int32 &rStartKeyGenID, sal_Int32 &rSize, ::rtl::OUString& aMediaType, - Reference < XInputStream > &rStream ) + const uno::Reference< XInputStream >& rStream ) { sal_Bool bOk = sal_False; const sal_Int32 nHeaderSize = n_ConstHeaderSize - 4; @@ -243,13 +321,33 @@ sal_Bool ZipFile::StaticFillData ( rtl::Reference < EncryptionData > & rData, nCount |= ( pBuffer[nPos++] & 0xFF ) << 8; nCount |= ( pBuffer[nPos++] & 0xFF ) << 16; nCount |= ( pBuffer[nPos++] & 0xFF ) << 24; - rData->nIterationCount = nCount; + rData->m_nIterationCount = nCount; rSize = pBuffer[nPos++] & 0xFF; rSize |= ( pBuffer[nPos++] & 0xFF ) << 8; rSize |= ( pBuffer[nPos++] & 0xFF ) << 16; rSize |= ( pBuffer[nPos++] & 0xFF ) << 24; + rEncAlg = pBuffer[nPos++] & 0xFF; + rEncAlg |= ( pBuffer[nPos++] & 0xFF ) << 8; + rEncAlg |= ( pBuffer[nPos++] & 0xFF ) << 16; + rEncAlg |= ( pBuffer[nPos++] & 0xFF ) << 24; + + rChecksumAlg = pBuffer[nPos++] & 0xFF; + rChecksumAlg |= ( pBuffer[nPos++] & 0xFF ) << 8; + rChecksumAlg |= ( pBuffer[nPos++] & 0xFF ) << 16; + rChecksumAlg |= ( pBuffer[nPos++] & 0xFF ) << 24; + + rDerivedKeySize = pBuffer[nPos++] & 0xFF; + rDerivedKeySize |= ( pBuffer[nPos++] & 0xFF ) << 8; + rDerivedKeySize |= ( pBuffer[nPos++] & 0xFF ) << 16; + rDerivedKeySize |= ( pBuffer[nPos++] & 0xFF ) << 24; + + rStartKeyGenID = pBuffer[nPos++] & 0xFF; + rStartKeyGenID |= ( pBuffer[nPos++] & 0xFF ) << 8; + rStartKeyGenID |= ( pBuffer[nPos++] & 0xFF ) << 16; + rStartKeyGenID |= ( pBuffer[nPos++] & 0xFF ) << 24; + sal_Int16 nSaltLength = pBuffer[nPos++] & 0xFF; nSaltLength |= ( pBuffer[nPos++] & 0xFF ) << 8; sal_Int16 nIVLength = ( pBuffer[nPos++] & 0xFF ); @@ -262,16 +360,16 @@ sal_Bool ZipFile::StaticFillData ( rtl::Reference < EncryptionData > & rData, if ( nSaltLength == rStream->readBytes ( aBuffer, nSaltLength ) ) { - rData->aSalt.realloc ( nSaltLength ); - memcpy ( rData->aSalt.getArray(), aBuffer.getConstArray(), nSaltLength ); + rData->m_aSalt.realloc ( nSaltLength ); + rtl_copyMemory ( rData->m_aSalt.getArray(), aBuffer.getConstArray(), nSaltLength ); if ( nIVLength == rStream->readBytes ( aBuffer, nIVLength ) ) { - rData->aInitVector.realloc ( nIVLength ); - memcpy ( rData->aInitVector.getArray(), aBuffer.getConstArray(), nIVLength ); + rData->m_aInitVector.realloc ( nIVLength ); + rtl_copyMemory ( rData->m_aInitVector.getArray(), aBuffer.getConstArray(), nIVLength ); if ( nDigestLength == rStream->readBytes ( aBuffer, nDigestLength ) ) { - rData->aDigest.realloc ( nDigestLength ); - memcpy ( rData->aDigest.getArray(), aBuffer.getConstArray(), nDigestLength ); + rData->m_aDigest.realloc ( nDigestLength ); + rtl_copyMemory ( rData->m_aDigest.getArray(), aBuffer.getConstArray(), nDigestLength ); if ( nMediaTypeLength == rStream->readBytes ( aBuffer, nMediaTypeLength ) ) { @@ -287,85 +385,107 @@ sal_Bool ZipFile::StaticFillData ( rtl::Reference < EncryptionData > & rData, return bOk; } -Reference< XInputStream > ZipFile::StaticGetDataFromRawStream( const Reference< XInputStream >& xStream, - const rtl::Reference < EncryptionData > &rData ) +uno::Reference< XInputStream > ZipFile::StaticGetDataFromRawStream( const uno::Reference< lang::XMultiServiceFactory >& xFactory, + const uno::Reference< XInputStream >& xStream, + const ::rtl::Reference< EncryptionData > &rData ) throw ( packages::WrongPasswordException, ZipIOException, RuntimeException ) { if ( !rData.is() ) throw ZipIOException( OUString(RTL_CONSTASCII_USTRINGPARAM( "Encrypted stream without encryption data!\n" )), - Reference< XInterface >() ); + uno::Reference< XInterface >() ); - if ( !rData->aKey.getLength() ) + if ( !rData->m_aKey.getLength() ) throw packages::WrongPasswordException( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( OSL_LOG_PREFIX ) ), uno::Reference< uno::XInterface >() ); - Reference< XSeekable > xSeek( xStream, UNO_QUERY ); + uno::Reference< XSeekable > xSeek( xStream, UNO_QUERY ); if ( !xSeek.is() ) throw ZipIOException( OUString(RTL_CONSTASCII_USTRINGPARAM( "The stream must be seekable!\n" )), - Reference< XInterface >() ); + uno::Reference< XInterface >() ); // if we have a digest, then this file is an encrypted one and we should // check if we can decrypt it or not - OSL_ENSURE( rData->aDigest.getLength(), "Can't detect password correctness without digest!\n" ); - if ( rData->aDigest.getLength() ) + OSL_ENSURE( rData->m_aDigest.getLength(), "Can't detect password correctness without digest!\n" ); + if ( rData->m_aDigest.getLength() ) { - sal_Int32 nSize = sal::static_int_cast< sal_Int32 >( xSeek->getLength() ); - nSize = nSize > n_ConstDigestLength ? n_ConstDigestLength : nSize; + sal_Int32 nSize = sal::static_int_cast< sal_Int32 >( xSeek->getLength() ); + if ( nSize > n_ConstDigestLength + 32 ) + nSize = n_ConstDigestLength + 32; // skip header - xSeek->seek( n_ConstHeaderSize + rData->aInitVector.getLength() + - rData->aSalt.getLength() + rData->aDigest.getLength() ); + xSeek->seek( n_ConstHeaderSize + rData->m_aInitVector.getLength() + + rData->m_aSalt.getLength() + rData->m_aDigest.getLength() ); // Only want to read enough to verify the digest Sequence < sal_Int8 > aReadBuffer ( nSize ); xStream->readBytes( aReadBuffer, nSize ); - if ( !StaticHasValidPassword( aReadBuffer, rData ) ) + if ( !StaticHasValidPassword( xFactory, aReadBuffer, rData ) ) throw packages::WrongPasswordException( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( OSL_LOG_PREFIX ) ), uno::Reference< uno::XInterface >() ); } - return new XUnbufferedStream ( xStream, rData ); + return new XUnbufferedStream( xFactory, xStream, rData ); +} + +#if 0 +// for debugging purposes +void CheckSequence( const uno::Sequence< sal_Int8 >& aSequence ) +{ + if ( aSequence.getLength() ) + { + sal_Int32* pPointer = *( (sal_Int32**)&aSequence ); + sal_Int32 nSize = *( pPointer + 1 ); + sal_Int32 nMemSize = *( pPointer - 2 ); + sal_Int32 nUsedMemSize = ( nSize + 4 * sizeof( sal_Int32 ) ); + OSL_ENSURE( nSize == aSequence.getLength() && nUsedMemSize + 7 - ( nUsedMemSize - 1 ) % 8 == nMemSize, "Broken Sequence!" ); + } } +#endif -sal_Bool ZipFile::StaticHasValidPassword( const Sequence< sal_Int8 > &aReadBuffer, const rtl::Reference < EncryptionData > &rData ) +sal_Bool ZipFile::StaticHasValidPassword( const uno::Reference< lang::XMultiServiceFactory >& xFactory, const Sequence< sal_Int8 > &aReadBuffer, const ::rtl::Reference< EncryptionData > &rData ) { - if ( !rData.is() || !rData->aKey.getLength() ) + if ( !rData.is() || !rData->m_aKey.getLength() ) return sal_False; sal_Bool bRet = sal_False; - sal_Int32 nSize = aReadBuffer.getLength(); - - // make a temporary cipher - rtlCipher aCipher; - StaticGetCipher ( rData, aCipher, sal_True ); - - Sequence < sal_Int8 > aDecryptBuffer ( nSize ); - rtlDigest aDigest = rtl_digest_createSHA1(); - rtlDigestError aDigestResult; - Sequence < sal_uInt8 > aDigestSeq ( RTL_DIGEST_LENGTH_SHA1 ); - rtlCipherError aResult = rtl_cipher_decode ( aCipher, - aReadBuffer.getConstArray(), - nSize, - reinterpret_cast < sal_uInt8 * > (aDecryptBuffer.getArray()), - nSize); - if(aResult != rtl_Cipher_E_None ) { - OSL_ASSERT ( aResult == rtl_Cipher_E_None); + + uno::Reference< xml::crypto::XCipherContext > xCipher( StaticGetCipher( xFactory, rData, false ), uno::UNO_SET_THROW ); + + uno::Sequence< sal_Int8 > aDecryptBuffer; + uno::Sequence< sal_Int8 > aDecryptBuffer2; + try + { + aDecryptBuffer = xCipher->convertWithCipherContext( aReadBuffer ); + aDecryptBuffer2 = xCipher->finalizeCipherContextAndDispose(); + } + catch( uno::Exception& ) + { + // decryption with padding will throw the exception in finalizing if the buffer represent only part of the stream + // it is no problem, actually this is why we read 32 additional bytes ( two of maximal possible encryption blocks ) + } + + if ( aDecryptBuffer2.getLength() ) + { + sal_Int32 nOldLen = aDecryptBuffer.getLength(); + aDecryptBuffer.realloc( nOldLen + aDecryptBuffer2.getLength() ); + rtl_copyMemory( aDecryptBuffer.getArray() + nOldLen, aDecryptBuffer2.getArray(), aDecryptBuffer2.getLength() ); } - aDigestResult = rtl_digest_updateSHA1 ( aDigest, - static_cast < const void * > ( aDecryptBuffer.getConstArray() ), nSize ); - OSL_ASSERT ( aDigestResult == rtl_Digest_E_None ); + if ( aDecryptBuffer.getLength() > n_ConstDigestLength ) + aDecryptBuffer.realloc( n_ConstDigestLength ); + + uno::Sequence< sal_Int8 > aDigestSeq; + uno::Reference< xml::crypto::XDigestContext > xDigestContext( StaticGetDigestContextForChecksum( xFactory, rData ), uno::UNO_SET_THROW ); - aDigestResult = rtl_digest_getSHA1 ( aDigest, aDigestSeq.getArray(), RTL_DIGEST_LENGTH_SHA1 ); - OSL_ASSERT ( aDigestResult == rtl_Digest_E_None ); - (void)aDigestResult; + xDigestContext->updateDigest( aDecryptBuffer ); + aDigestSeq = xDigestContext->finalizeDigestAndDispose(); // If we don't have a digest, then we have to assume that the password is correct - if ( rData->aDigest.getLength() != 0 && - ( aDigestSeq.getLength() != rData->aDigest.getLength() || + if ( rData->m_aDigest.getLength() != 0 && + ( aDigestSeq.getLength() != rData->m_aDigest.getLength() || 0 != rtl_compareMemory ( aDigestSeq.getConstArray(), - rData->aDigest.getConstArray(), + rData->m_aDigest.getConstArray(), aDigestSeq.getLength() ) ) ) { // We should probably tell the user that the password they entered was wrong @@ -373,136 +493,44 @@ sal_Bool ZipFile::StaticHasValidPassword( const Sequence< sal_Int8 > &aReadBuffe else bRet = sal_True; - rtl_digest_destroySHA1 ( aDigest ); - return bRet; } -sal_Bool ZipFile::hasValidPassword ( ZipEntry & rEntry, const rtl::Reference < EncryptionData > &rData ) +sal_Bool ZipFile::hasValidPassword ( ZipEntry & rEntry, const ::rtl::Reference< EncryptionData >& rData ) { ::osl::MutexGuard aGuard( m_aMutex ); sal_Bool bRet = sal_False; - if ( rData->aKey.getLength() ) + if ( rData.is() && rData->m_aKey.getLength() ) { xSeek->seek( rEntry.nOffset ); sal_Int32 nSize = rEntry.nMethod == DEFLATED ? rEntry.nCompressedSize : rEntry.nSize; // Only want to read enough to verify the digest - nSize = nSize > n_ConstDigestLength ? n_ConstDigestLength : nSize; + if ( nSize > n_ConstDigestDecrypt ) + nSize = n_ConstDigestDecrypt; + Sequence < sal_Int8 > aReadBuffer ( nSize ); xStream->readBytes( aReadBuffer, nSize ); - bRet = StaticHasValidPassword( aReadBuffer, rData ); + bRet = StaticHasValidPassword( m_xFactory, aReadBuffer, rData ); } + return bRet; } -#if 0 -Reference < XInputStream > ZipFile::createFileStream( - ZipEntry & rEntry, - const rtl::Reference < EncryptionData > &rData, - sal_Bool bRawStream, - sal_Bool bIsEncrypted ) -{ - static OUString sServiceName ( RTL_CONSTASCII_USTRINGPARAM ( "com.sun.star.io.TempFile" ) ); - Reference < XInputStream > xTempStream = Reference < XInputStream > ( xFactory->createInstance ( sServiceName ), UNO_QUERY ); - return new XFileStream ( rEntry, xStream, xTempStream, rData, bRawStream, bIsEncrypted ); -} -Reference < XInputStream > ZipFile::createMemoryStream( - ZipEntry & rEntry, - const rtl::Reference < EncryptionData > &rData, - sal_Bool bRawStream, - sal_Bool bIsEncrypted ) -{ - sal_Int32 nUncompressedSize, nEnd; - if (bRawStream) - { - nUncompressedSize = rEntry.nMethod == DEFLATED ? rEntry.nCompressedSize : rEntry.nSize; - nEnd = rEntry.nOffset + nUncompressedSize; - } - else - { - nUncompressedSize = rEntry.nSize; - nEnd = rEntry.nMethod == DEFLATED ? rEntry.nOffset + rEntry.nCompressedSize : rEntry.nOffset + rEntry.nSize; - } - sal_Int32 nSize = rEntry.nMethod == DEFLATED ? rEntry.nCompressedSize : rEntry.nSize; - Sequence < sal_Int8 > aReadBuffer ( nSize ), aDecryptBuffer, aWriteBuffer; - rtlCipher aCipher; - - // If the encryption key is zero, we need to return the raw stream. First check if - // we have the salt. If we have the salt, then check if we have the encryption key - // if not, return rawStream instead. - - sal_Bool bHaveEncryptData = ( rData.is() && rData->aSalt.getLength() && rData->aInitVector.getLength() && rData->nIterationCount != 0 ) ? sal_True : sal_False; - sal_Bool bMustDecrypt = ( !bRawStream && bHaveEncryptData && bIsEncrypted ) ? sal_True : sal_False; - - if ( bMustDecrypt ) - { - StaticGetCipher ( rData, aCipher, sal_True ); - aDecryptBuffer.realloc ( nSize ); - } - - if ( nSize <0 ) - throw IOException ( ); - - xSeek->seek( rEntry.nOffset ); - xStream->readBytes( aReadBuffer, nSize ); // Now it holds the raw stuff from disk - - if ( bMustDecrypt ) - { - rtlCipherError aResult = rtl_cipher_decode ( aCipher, - aReadBuffer.getConstArray(), - nSize, - reinterpret_cast < sal_uInt8 * > (aDecryptBuffer.getArray()), - nSize); - OSL_ASSERT (aResult == rtl_Cipher_E_None); - aReadBuffer = aDecryptBuffer; // Now it holds the decrypted data - } - if (bRawStream || rEntry.nMethod == STORED) - aWriteBuffer = aReadBuffer; // bRawStream means the caller doesn't want it decompressed - else - { - aInflater.setInputSegment( aReadBuffer, 0, nSize ); - aWriteBuffer.realloc( nUncompressedSize ); - aInflater.doInflate( aWriteBuffer ); - aInflater.reset(); - } - - if ( bHaveEncryptData && !bMustDecrypt && bIsEncrypted ) - { - // if we have the data needed to decrypt it, but didn't want it decrypted (or - // we couldn't decrypt it due to wrong password), then we prepend this - // data to the stream - - // Make a buffer big enough to hold both the header and the data itself - Sequence < sal_Int8 > aEncryptedDataHeader ( n_ConstHeaderSize + - rData->aInitVector.getLength() + - rData->aSalt.getLength() + - rData->aDigest.getLength() + - aWriteBuffer.getLength() ); - sal_Int8 * pHeader = aEncryptedDataHeader.getArray(); - StaticFillHeader ( rData, rEntry.nSize, pHeader ); - memcpy ( pHeader, aWriteBuffer.getConstArray(), aWriteBuffer.getLength() ); - - // dump old buffer and point aWriteBuffer to the new one with the header - aWriteBuffer = aEncryptedDataHeader; - } - return Reference < XInputStream > ( new XMemoryStream ( aWriteBuffer ) ); -} -#endif -Reference < XInputStream > ZipFile::createUnbufferedStream( +uno::Reference< XInputStream > ZipFile::createUnbufferedStream( SotMutexHolderRef aMutexHolder, ZipEntry & rEntry, - const rtl::Reference < EncryptionData > &rData, + const ::rtl::Reference< EncryptionData > &rData, sal_Int8 nStreamMode, sal_Bool bIsEncrypted, ::rtl::OUString aMediaType ) { ::osl::MutexGuard aGuard( m_aMutex ); - return new XUnbufferedStream ( aMutexHolder, rEntry, xStream, rData, nStreamMode, bIsEncrypted, aMediaType, bRecoveryMode ); + return new XUnbufferedStream ( m_xFactory, aMutexHolder, rEntry, xStream, rData, nStreamMode, bIsEncrypted, aMediaType, bRecoveryMode ); } @@ -511,8 +539,8 @@ ZipEnumeration * SAL_CALL ZipFile::entries( ) return new ZipEnumeration ( aEntries ); } -Reference< XInputStream > SAL_CALL ZipFile::getInputStream( ZipEntry& rEntry, - const rtl::Reference < EncryptionData > &rData, +uno::Reference< XInputStream > SAL_CALL ZipFile::getInputStream( ZipEntry& rEntry, + const ::rtl::Reference< EncryptionData > &rData, sal_Bool bIsEncrypted, SotMutexHolderRef aMutexHolder ) throw(IOException, ZipException, RuntimeException) @@ -529,7 +557,7 @@ Reference< XInputStream > SAL_CALL ZipFile::getInputStream( ZipEntry& rEntry, // if we have a digest, then this file is an encrypted one and we should // check if we can decrypt it or not - if ( bIsEncrypted && rData.is() && rData->aDigest.getLength() ) + if ( bIsEncrypted && rData.is() && rData->m_aDigest.getLength() ) bNeedRawStream = !hasValidPassword ( rEntry, rData ); return createUnbufferedStream ( aMutexHolder, @@ -539,8 +567,8 @@ Reference< XInputStream > SAL_CALL ZipFile::getInputStream( ZipEntry& rEntry, bIsEncrypted ); } -Reference< XInputStream > SAL_CALL ZipFile::getDataStream( ZipEntry& rEntry, - const rtl::Reference < EncryptionData > &rData, +uno::Reference< XInputStream > SAL_CALL ZipFile::getDataStream( ZipEntry& rEntry, + const ::rtl::Reference< EncryptionData > &rData, sal_Bool bIsEncrypted, SotMutexHolderRef aMutexHolder ) throw ( packages::WrongPasswordException, @@ -562,12 +590,12 @@ Reference< XInputStream > SAL_CALL ZipFile::getDataStream( ZipEntry& rEntry, // to detect password correctness if ( !rData.is() ) throw ZipException( OUString(RTL_CONSTASCII_USTRINGPARAM( "Encrypted stream without encryption data!\n" )), - Reference< XInterface >() ); + uno::Reference< XInterface >() ); // if we have a digest, then this file is an encrypted one and we should // check if we can decrypt it or not - OSL_ENSURE( rData->aDigest.getLength(), "Can't detect password correctness without digest!\n" ); - if ( rData->aDigest.getLength() && !hasValidPassword ( rEntry, rData ) ) + OSL_ENSURE( rData->m_aDigest.getLength(), "Can't detect password correctness without digest!\n" ); + if ( rData->m_aDigest.getLength() && !hasValidPassword ( rEntry, rData ) ) throw packages::WrongPasswordException( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( OSL_LOG_PREFIX ) ), uno::Reference< uno::XInterface >() ); } else @@ -580,8 +608,8 @@ Reference< XInputStream > SAL_CALL ZipFile::getDataStream( ZipEntry& rEntry, bIsEncrypted ); } -Reference< XInputStream > SAL_CALL ZipFile::getRawData( ZipEntry& rEntry, - const rtl::Reference < EncryptionData > &rData, +uno::Reference< XInputStream > SAL_CALL ZipFile::getRawData( ZipEntry& rEntry, + const ::rtl::Reference< EncryptionData >& rData, sal_Bool bIsEncrypted, SotMutexHolderRef aMutexHolder ) throw(IOException, ZipException, RuntimeException) @@ -594,9 +622,9 @@ Reference< XInputStream > SAL_CALL ZipFile::getRawData( ZipEntry& rEntry, return createUnbufferedStream ( aMutexHolder, rEntry, rData, UNBUFF_STREAM_RAW, bIsEncrypted ); } -Reference< XInputStream > SAL_CALL ZipFile::getWrappedRawStream( +uno::Reference< XInputStream > SAL_CALL ZipFile::getWrappedRawStream( ZipEntry& rEntry, - const rtl::Reference < EncryptionData > &rData, + const ::rtl::Reference< EncryptionData >& rData, const ::rtl::OUString& aMediaType, SotMutexHolderRef aMutexHolder ) throw ( packages::NoEncryptionException, @@ -628,7 +656,7 @@ sal_Bool ZipFile::readLOC( ZipEntry &rEntry ) aGrabber >> nTestSig; if (nTestSig != LOCSIG) - throw ZipIOException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid LOC header (bad signature") ), Reference < XInterface > () ); + throw ZipIOException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid LOC header (bad signature") ), uno::Reference < XInterface > () ); aGrabber >> nVersion; aGrabber >> nFlag; aGrabber >> nHow; @@ -674,7 +702,7 @@ sal_Bool ZipFile::readLOC( ZipEntry &rEntry ) if ( bBroken && !bRecoveryMode ) throw ZipIOException( OUString( RTL_CONSTASCII_USTRINGPARAM( "The stream seems to be broken!" ) ), - Reference< XInterface >() ); + uno::Reference< XInterface >() ); return sal_True; } @@ -708,17 +736,17 @@ sal_Int32 ZipFile::findEND( ) } catch ( IllegalArgumentException& ) { - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), uno::Reference < XInterface > () ); } catch ( NotConnectedException& ) { - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), uno::Reference < XInterface > () ); } catch ( BufferSizeExceededException& ) { - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), uno::Reference < XInterface > () ); } - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), uno::Reference < XInterface > () ); } sal_Int32 ZipFile::readCEN() @@ -739,25 +767,25 @@ sal_Int32 ZipFile::readCEN() aGrabber >> nCenOff; if ( nTotal * CENHDR > nCenLen ) - throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "invalid END header (bad entry count)") ), Reference < XInterface > () ); + throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "invalid END header (bad entry count)") ), uno::Reference < XInterface > () ); if ( nTotal > ZIP_MAXENTRIES ) - throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "too many entries in ZIP File") ), Reference < XInterface > () ); + throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "too many entries in ZIP File") ), uno::Reference < XInterface > () ); if ( nCenLen < 0 || nCenLen > nEndPos ) - throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid END header (bad central directory size)") ), Reference < XInterface > () ); + throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid END header (bad central directory size)") ), uno::Reference < XInterface > () ); nCenPos = nEndPos - nCenLen; if ( nCenOff < 0 || nCenOff > nCenPos ) - throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid END header (bad central directory size)") ), Reference < XInterface > () ); + throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid END header (bad central directory size)") ), uno::Reference < XInterface > () ); nLocPos = nCenPos - nCenOff; aGrabber.seek( nCenPos ); Sequence < sal_Int8 > aCENBuffer ( nCenLen ); sal_Int64 nRead = aGrabber.readBytes ( aCENBuffer, nCenLen ); if ( static_cast < sal_Int64 > ( nCenLen ) != nRead ) - throw ZipException ( OUString ( RTL_CONSTASCII_USTRINGPARAM ( "Error reading CEN into memory buffer!") ), Reference < XInterface > () ); + throw ZipException ( OUString ( RTL_CONSTASCII_USTRINGPARAM ( "Error reading CEN into memory buffer!") ), uno::Reference < XInterface > () ); MemoryByteGrabber aMemGrabber ( aCENBuffer ); @@ -769,19 +797,19 @@ sal_Int32 ZipFile::readCEN() { aMemGrabber >> nTestSig; if ( nTestSig != CENSIG ) - throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid CEN header (bad signature)") ), Reference < XInterface > () ); + throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid CEN header (bad signature)") ), uno::Reference < XInterface > () ); aMemGrabber.skipBytes ( 2 ); aMemGrabber >> aEntry.nVersion; if ( ( aEntry.nVersion & 1 ) == 1 ) - throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid CEN header (encrypted entry)") ), Reference < XInterface > () ); + throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid CEN header (encrypted entry)") ), uno::Reference < XInterface > () ); aMemGrabber >> aEntry.nFlag; aMemGrabber >> aEntry.nMethod; if ( aEntry.nMethod != STORED && aEntry.nMethod != DEFLATED) - throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid CEN header (bad compression method)") ), Reference < XInterface > () ); + throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Invalid CEN header (bad compression method)") ), uno::Reference < XInterface > () ); aMemGrabber >> aEntry.nTime; aMemGrabber >> aEntry.nCrc; @@ -797,13 +825,13 @@ sal_Int32 ZipFile::readCEN() aEntry.nOffset *= -1; if ( aEntry.nPathLen < 0 ) - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "unexpected name length" ) ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "unexpected name length" ) ), uno::Reference < XInterface > () ); if ( nCommentLen < 0 ) - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "unexpected comment length" ) ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "unexpected comment length" ) ), uno::Reference < XInterface > () ); if ( aEntry.nExtraLen < 0 ) - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "unexpected extra header info length") ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "unexpected extra header info length") ), uno::Reference < XInterface > () ); // read always in UTF8, some tools seem not to set UTF8 bit aEntry.sPath = rtl::OUString::intern ( (sal_Char *) aMemGrabber.getCurrentPos(), @@ -811,14 +839,14 @@ sal_Int32 ZipFile::readCEN() RTL_TEXTENCODING_UTF8 ); if ( !::comphelper::OStorageHelper::IsValidZipEntryFileName( aEntry.sPath, sal_True ) ) - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip entry has an invalid name.") ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip entry has an invalid name.") ), uno::Reference < XInterface > () ); aMemGrabber.skipBytes( aEntry.nPathLen + aEntry.nExtraLen + nCommentLen ); aEntries[aEntry.sPath] = aEntry; } if (nCount != nTotal) - throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Count != Total") ), Reference < XInterface > () ); + throw ZipException(OUString( RTL_CONSTASCII_USTRINGPARAM ( "Count != Total") ), uno::Reference < XInterface > () ); } catch ( IllegalArgumentException & ) { @@ -991,15 +1019,15 @@ sal_Int32 ZipFile::recover() } catch ( IllegalArgumentException& ) { - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), uno::Reference < XInterface > () ); } catch ( NotConnectedException& ) { - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), uno::Reference < XInterface > () ); } catch ( BufferSizeExceededException& ) { - throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), Reference < XInterface > () ); + throw ZipException( OUString( RTL_CONSTASCII_USTRINGPARAM ( "Zip END signature not found!") ), uno::Reference < XInterface > () ); } } |