9012355a60
... duplicates; the directory names of AutoCorrect entries are
user-editable, so this needs to be supported.
AutoCorrect uses an ODF package because the ODF document loading code
requires the ODF document to be in an ODF storage with a MediaType
property.
AutoCorrect writes an empty mimetype file, and if such is present in an
.odt file that is being loaded, existing checks will detect it as
corrupted, so we can use this to check that the file is an AutoCorrect
file and turn off the case-insensitive check.
(regression from commit 4833f13124)
Change-Id: I43887f7dad0c8cbb465b4c0f1c38bcc3244a7675
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/173477
Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>
Tested-by: Jenkins
187 lines
7.6 KiB
C++
187 lines
7.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_PACKAGE_INC_ZIPFILE_HXX
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#define INCLUDED_PACKAGE_INC_ZIPFILE_HXX
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#include <com/sun/star/xml/crypto/XCipherContext.hpp>
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#include <com/sun/star/xml/crypto/XDigestContext.hpp>
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#include <comphelper/refcountedmutex.hxx>
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#include <package/Inflater.hxx>
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#include <rtl/ref.hxx>
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#include "ByteGrabber.hxx"
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#include "HashMaps.hxx"
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#include "EncryptionData.hxx"
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#include <optional>
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#include <span>
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#include <unordered_set>
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class MemoryByteGrabber;
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namespace com::sun::star {
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namespace uno { class XComponentContext; }
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namespace ucb { class XProgressHandler; }
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}
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namespace rtl
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{
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template < class T > class Reference;
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}
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/*
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* We impose arbitrary but reasonable limit on ZIP files.
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*/
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#define ZIP_MAXNAMELEN 512
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#define ZIP_MAXENTRIES (0x10000 - 2)
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class ZipEnumeration;
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class ZipFile
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{
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public:
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enum class Checks { Default, CheckInsensitive, TryCheckInsensitive };
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private:
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rtl::Reference<comphelper::RefCountedMutex> m_aMutexHolder;
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std::unordered_set<OUString> m_EntriesInsensitive;
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Checks m_Checks;
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EntryHash aEntries;
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ByteGrabber aGrabber;
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ZipUtils::Inflater aInflater;
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css::uno::Reference < css::io::XInputStream > xStream;
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const css::uno::Reference < css::uno::XComponentContext > m_xContext;
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bool bRecoveryMode;
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// aMediaType parameter is used only for raw stream header creation
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css::uno::Reference < css::io::XInputStream > createStreamForZipEntry(
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const rtl::Reference<comphelper::RefCountedMutex>& aMutexHolder,
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ZipEntry const & rEntry,
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const ::rtl::Reference < EncryptionData > &rData,
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sal_Int8 nStreamMode,
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::std::optional<sal_Int64> oDecryptedSize,
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const bool bUseBufferedStream = true,
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const OUString& aMediaType = OUString() );
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css::uno::Reference<css::io::XInputStream> checkValidPassword(
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ZipEntry const& rEntry, rtl::Reference<EncryptionData> const& rData,
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sal_Int64 nDecryptedSize,
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rtl::Reference<comphelper::RefCountedMutex> const& rMutexHolder);
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bool checkSizeAndCRC( const ZipEntry& aEntry );
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sal_Int32 getCRC( sal_Int64 nOffset, sal_Int64 nSize );
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void getSizeAndCRC( sal_Int64 nOffset, sal_Int64 nCompressedSize, sal_Int64 *nSize, sal_Int32 *nCRC );
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sal_uInt64 readLOC(ZipEntry &rEntry);
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sal_uInt64 readLOC_Impl(ZipEntry &rEntry, std::vector<sal_Int8>& rNameBuffer, std::vector<sal_Int8>& rExtraBuffer);
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sal_Int32 readCEN();
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std::tuple<sal_Int64, sal_Int64, sal_Int64> findCentralDirectory();
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void HandlePK34(std::span<const sal_Int8> data, sal_Int64 dataOffset, sal_Int64 totalSize);
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void HandlePK78(std::span<const sal_Int8> data, sal_Int64 dataOffset);
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void recover();
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static bool readExtraFields(MemoryByteGrabber& aMemGrabber, sal_Int16 nExtraLen,
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sal_uInt64& nSize, sal_uInt64& nCompressedSize,
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::std::optional<sal_uInt64> & roOffset,
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std::string_view const * pCENFilenameToCheck);
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public:
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ZipFile( rtl::Reference<comphelper::RefCountedMutex> aMutexHolder,
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css::uno::Reference < css::io::XInputStream > const &xInput,
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css::uno::Reference < css::uno::XComponentContext > xContext,
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bool bInitialise,
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bool bForceRecover,
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Checks checks);
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~ZipFile();
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EntryHash& GetEntryHash() { return aEntries; }
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void setInputStream ( const css::uno::Reference < css::io::XInputStream >& xNewStream );
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css::uno::Reference< css::io::XInputStream > getRawData(
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ZipEntry& rEntry,
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const ::rtl::Reference < EncryptionData > &rData,
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::std::optional<sal_Int64> oDecryptedSize,
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const rtl::Reference<comphelper::RefCountedMutex>& aMutexHolder,
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const bool bUseBufferedStream = true );
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static css::uno::Reference< css::xml::crypto::XDigestContext > StaticGetDigestContextForChecksum(
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const css::uno::Reference< css::uno::XComponentContext >& xArgContext,
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const ::rtl::Reference< EncryptionData >& xEncryptionData );
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static css::uno::Reference< css::xml::crypto::XCipherContext > StaticGetCipher(
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const css::uno::Reference< css::uno::XComponentContext >& xArgContext,
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const ::rtl::Reference< EncryptionData >& xEncryptionData,
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bool bEncrypt );
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static void StaticFillHeader ( const ::rtl::Reference < EncryptionData > & rData,
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sal_Int64 nSize,
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const OUString& aMediaType,
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sal_Int8 * & pHeader );
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static bool StaticFillData ( ::rtl::Reference < BaseEncryptionData > const & rData,
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sal_Int32 &rEncAlgorithm,
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sal_Int32 &rChecksumAlgorithm,
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sal_Int32 &rDerivedKeySize,
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sal_Int32 &rStartKeyGenID,
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sal_Int32 &rSize,
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OUString& aMediaType,
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const css::uno::Reference < css::io::XInputStream >& rStream );
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static css::uno::Reference< css::io::XInputStream > StaticGetDataFromRawStream(
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const rtl::Reference<comphelper::RefCountedMutex>& aMutexHolder,
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const css::uno::Reference< css::uno::XComponentContext >& rxContext,
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const css::uno::Reference< css::io::XInputStream >& xStream,
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const ::rtl::Reference < EncryptionData > &rData );
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static bool StaticHasValidPassword (
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const css::uno::Reference< css::uno::XComponentContext >& rxContext,
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const css::uno::Sequence< sal_Int8 > &aReadBuffer,
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const ::rtl::Reference < EncryptionData > &rData );
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css::uno::Reference< css::io::XInputStream > getInputStream(
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ZipEntry& rEntry,
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const ::rtl::Reference < EncryptionData > &rData,
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::std::optional<sal_Int64> oDecryptedSize,
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const rtl::Reference<comphelper::RefCountedMutex>& aMutexHolder );
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css::uno::Reference< css::io::XInputStream > getDataStream(
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ZipEntry& rEntry,
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const ::rtl::Reference < EncryptionData > &rData,
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::std::optional<sal_Int64> oEncryptedSize,
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const rtl::Reference<comphelper::RefCountedMutex>& aMutexHolder );
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css::uno::Reference< css::io::XInputStream > getWrappedRawStream(
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ZipEntry& rEntry,
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const ::rtl::Reference < EncryptionData > &rData,
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sal_Int64 nDecryptedSize,
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const OUString& aMediaType,
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const rtl::Reference<comphelper::RefCountedMutex>& aMutexHolder );
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ZipEnumeration entries();
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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