247 lines
7 KiB
C++
247 lines
7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_shell.hxx"
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#include "zipexcptn.hxx"
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#include "internal/zipfile.hxx"
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#include "internal/global.hxx"
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#include <malloc.h>
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#include <algorithm>
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#include <functional>
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#include <string.h>
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namespace internal
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{
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/* for case in-sensitive string comparison */
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struct stricmp : public std::unary_function<std::string, bool>
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{
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stricmp(const std::string& str) : str_(str)
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{}
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bool operator() (const std::string& other)
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{ return (0 == _stricmp(str_.c_str(), other.c_str())); }
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std::string str_;
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};
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} // namespace internal
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/** Checks whether a file is a zip file or not
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@precond The given parameter must be a string with length > 0
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The file must exist
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The file must be readable for the current user
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@returns true if the file is a zip file
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false if the file is not a zip file
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@throws ParameterException if the given file name is empty
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IOException if the specified file doesn't exist
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AccessViolationException if read access to the file is denied
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*/
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bool ZipFile::IsZipFile(const std::string& /*FileName*/)
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{
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return true;
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}
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bool ZipFile::IsZipFile(void* /*stream*/)
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{
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return true;
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}
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/** Returns wheter the version of the specified zip file may be uncompressed with the
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currently used zlib version or not
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@precond The given parameter must be a string with length > 0
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The file must exist
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The file must be readable for the current user
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The file must be a valid zip file
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@returns true if the file may be uncompressed with the currently used zlib
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false if the file may not be uncompressed with the currently used zlib
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@throws ParameterException if the given file name is empty
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IOException if the specified file doesn't exist or is no zip file
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AccessViolationException if read access to the file is denied
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*/
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bool ZipFile::IsValidZipFileVersionNumber(const std::string& /*FileName*/)
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{
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return true;
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}
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bool ZipFile::IsValidZipFileVersionNumber(void* /* stream*/)
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{
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return true;
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}
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/** Constructs a zip file from a zip file
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@precond The given parameter must be a string with length > 0
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The file must exist
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The file must be readable for the current user
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@throws ParameterException if the given file name is empty
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IOException if the specified file doesn't exist or is no valid zip file
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AccessViolationException if read access to the file is denied
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WrongZipVersionException if the zip file cannot be uncompressed
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with the used zlib version
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*/
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ZipFile::ZipFile(const std::string& FileName)
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{
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m_uzFile = unzOpen(FileName.c_str());
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if (0 == m_uzFile)
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throw IOException(-1);
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}
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ZipFile::ZipFile(void* stream, zlib_filefunc_def* fa)
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{
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fa->opaque = stream;
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m_uzFile = unzOpen2((const char *)NULL, fa);
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if (0 == m_uzFile)
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throw IOException(-1);
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}
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/** Destroys a zip file
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*/
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ZipFile::~ZipFile()
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{
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unzClose(m_uzFile);
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}
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/** Provides an interface to read the uncompressed data of a content of the zip file
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@precond The specified content must exist in this file
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ppstm must not be NULL
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*/
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void ZipFile::GetUncompressedContent(
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const std::string& ContentName, /*inout*/ ZipContentBuffer_t& ContentBuffer)
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{
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int rc = unzLocateFile(m_uzFile, ContentName.c_str(), 0);
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if (UNZ_END_OF_LIST_OF_FILE == rc)
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throw ZipContentMissException(rc);
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unz_file_info finfo;
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unzGetCurrentFileInfo(m_uzFile, &finfo, 0, 0, 0, 0, 0, 0);
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ContentBuffer.resize(finfo.uncompressed_size);
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rc = unzOpenCurrentFile(m_uzFile);
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if (UNZ_OK != rc)
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throw ZipException(rc);
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rc = unzReadCurrentFile(m_uzFile, &ContentBuffer[0], finfo.uncompressed_size);
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if (rc < 0)
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throw ZipException(rc);
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rc = unzCloseCurrentFile(m_uzFile);
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if (rc < 0)
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throw ZipException(rc);
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}
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/** Returns a list with the content names contained within this file
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*/
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ZipFile::DirectoryPtr_t ZipFile::GetDirectory() const
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{
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DirectoryPtr_t dir(new Directory_t());
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long lmax = GetFileLongestFileNameLength() + 1;
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char* szFileName = reinterpret_cast<char*>(_alloca(lmax));
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if (!szFileName)
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throw ZipException(ERROR_NOT_ENOUGH_MEMORY);
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int rc = unzGoToFirstFile(m_uzFile);
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while (UNZ_OK == rc && UNZ_END_OF_LIST_OF_FILE != rc)
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{
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unzGetCurrentFileInfo(
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m_uzFile, 0, szFileName, lmax, 0, 0, 0, 0);
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dir->push_back(szFileName);
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rc = unzGoToNextFile(m_uzFile);
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}
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if (UNZ_OK != rc && UNZ_END_OF_LIST_OF_FILE != rc)
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throw ZipException(rc);
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return dir;
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}
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/** Convinience query function may even realized with
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iterating over a ZipFileDirectory returned by
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GetDirectory */
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bool ZipFile::HasContent(const std::string& ContentName) const
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{
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//#i34314# we need to compare package content names
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//case in-sensitive as it is not defined that such
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//names must be handled case sensitive
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DirectoryPtr_t dir = GetDirectory();
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Directory_t::iterator iter =
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std::find_if(dir->begin(), dir->end(), internal::stricmp(ContentName));
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return (iter != dir->end());
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}
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/** Returns the length of the longest file name
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in the current zip file
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*/
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long ZipFile::GetFileLongestFileNameLength() const
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{
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long lmax = 0;
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unz_file_info finfo;
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int rc = unzGoToFirstFile(m_uzFile);
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while (UNZ_OK == rc && UNZ_END_OF_LIST_OF_FILE != rc)
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{
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unzGetCurrentFileInfo(m_uzFile, &finfo, 0, 0, 0, 0, 0, 0);
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lmax = std::max<long>(lmax, finfo.size_filename);
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rc = unzGoToNextFile(m_uzFile);
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}
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if (UNZ_OK != rc && UNZ_END_OF_LIST_OF_FILE != rc)
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throw ZipException(rc);
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return lmax;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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