156 lines
5 KiB
C++
156 lines
5 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_SHELL_INC_INTERNAL_ZIPFILE_HXX
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#define INCLUDED_SHELL_INC_INTERNAL_ZIPFILE_HXX
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#ifndef _WINDOWS
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#define _WINDOWS
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#endif
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#include <zlib.h>
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#include <string>
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#include <vector>
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#include <memory>
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class StreamInterface;
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/** A simple zip content provider based on the zlib
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*/
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class ZipFile
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{
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public:
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typedef std::vector<std::string> Directory_t;
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typedef std::auto_ptr<Directory_t> DirectoryPtr_t;
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typedef std::vector<char> ZipContentBuffer_t;
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public:
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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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static bool IsZipFile(const std::string &FileName);
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static bool IsZipFile(void *stream);
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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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static bool IsValidZipFileVersionNumber(const std::string &FileName);
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static bool IsValidZipFileVersionNumber(void *stream);
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public:
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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(const std::string &FileName);
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ZipFile(StreamInterface *stream);
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/** Destroys a zip file
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*/
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~ZipFile();
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/** Provides an interface to read the uncompressed data of a content of the zip file
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@param ContentName
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The name of the content in the zip file
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@param ppstm
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Pointer to pointer, will receive an interface pointer
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to IUnknown on success
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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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@throws std::bad_alloc if the necessary buffer could not be
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allocated
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ZipException if an zip error occurs
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ZipContentMissException if the specified zip content
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does not exist in this zip file
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*/
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void GetUncompressedContent(const std::string &ContentName, /*inout*/ ZipContentBuffer_t &ContentBuffer);
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/** Returns a list with the content names contained within this file
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@throws ZipException if an error in the zlib happens
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*/
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DirectoryPtr_t GetDirectory() const;
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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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*/
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bool HasContent(const std::string &ContentName) const;
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private:
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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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@throws ZipException if an zip error occurs
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*/
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long GetFileLongestFileNameLength() const;
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private:
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StreamInterface *m_pStream;
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bool m_bShouldFree;
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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