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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_shell.hxx"
+#include "zipexcptn.hxx"
+#include "internal/zipfile.hxx"
+#include "internal/global.hxx"
+
+#include <malloc.h>
+#include <algorithm>
+#include <functional>
+
+#include <string.h>
+
+#ifdef OS2
+#include <alloca.h>
+#define _alloca alloca
+#define ERROR_NOT_ENOUGH_MEMORY 8
+#endif
+
+namespace internal
+{
+ /* for case in-sensitive string comparison */
+ struct stricmp : public std::unary_function<std::string, bool>
+ {
+ stricmp(const std::string& str) : str_(str)
+ {}
+
+ bool operator() (const std::string& other)
+ { return (0 == _stricmp(str_.c_str(), other.c_str())); }
+
+ std::string str_;
+ };
+} // namespace internal
+
+/** Checks whether a file is a zip file or not
+
+ @precond The given parameter must be a string with length > 0
+ The file must exist
+ The file must be readable for the current user
+
+ @returns true if the file is a zip file
+ false if the file is not a zip file
+
+ @throws ParameterException if the given file name is empty
+ IOException if the specified file doesn't exist
+ AccessViolationException if read access to the file is denied
+*/
+bool ZipFile::IsZipFile(const std::string& /*FileName*/)
+{
+ return true;
+}
+
+bool ZipFile::IsZipFile(void* /*stream*/)
+{
+ return true;
+}
+
+
+/** Returns wheter the version of the specified zip file may be uncompressed with the
+ currently used zlib version or not
+
+ @precond The given parameter must be a string with length > 0
+ The file must exist
+ The file must be readable for the current user
+ The file must be a valid zip file
+
+ @returns true if the file may be uncompressed with the currently used zlib
+ false if the file may not be uncompressed with the currently used zlib
+
+ @throws ParameterException if the given file name is empty
+ IOException if the specified file doesn't exist or is no zip file
+ AccessViolationException if read access to the file is denied
+*/
+bool ZipFile::IsValidZipFileVersionNumber(const std::string& /*FileName*/)
+{
+ return true;
+}
+
+bool ZipFile::IsValidZipFileVersionNumber(void* /* stream*/)
+{
+ return true;
+}
+
+
+/** Constructs a zip file from a zip file
+
+ @precond The given parameter must be a string with length > 0
+ The file must exist
+ The file must be readable for the current user
+
+ @throws ParameterException if the given file name is empty
+ IOException if the specified file doesn't exist or is no valid zip file
+ AccessViolationException if read access to the file is denied
+ WrongZipVersionException if the zip file cannot be uncompressed
+ with the used zlib version
+*/
+ZipFile::ZipFile(const std::string& FileName)
+{
+ m_uzFile = unzOpen(FileName.c_str());
+
+ if (0 == m_uzFile)
+ throw IOException(-1);
+}
+
+ZipFile::ZipFile(void* stream, zlib_filefunc_def* fa)
+{
+ fa->opaque = stream;
+ m_uzFile = unzOpen2((const char *)NULL, fa);
+
+ if (0 == m_uzFile)
+ throw IOException(-1);
+}
+
+
+/** Destroys a zip file
+*/
+ZipFile::~ZipFile()
+{
+ unzClose(m_uzFile);
+}
+
+/** Provides an interface to read the uncompressed data of a content of the zip file
+
+ @precond The specified content must exist in this file
+ ppstm must not be NULL
+*/
+void ZipFile::GetUncompressedContent(
+ const std::string& ContentName, /*inout*/ ZipContentBuffer_t& ContentBuffer)
+{
+ int rc = unzLocateFile(m_uzFile, ContentName.c_str(), 0);
+
+ if (UNZ_END_OF_LIST_OF_FILE == rc)
+ throw ZipContentMissException(rc);
+
+ unz_file_info finfo;
+ unzGetCurrentFileInfo(m_uzFile, &finfo, 0, 0, 0, 0, 0, 0);
+
+ ContentBuffer.resize(finfo.uncompressed_size);
+
+ rc = unzOpenCurrentFile(m_uzFile);
+
+ if (UNZ_OK != rc)
+ throw ZipException(rc);
+
+ rc = unzReadCurrentFile(m_uzFile, &ContentBuffer[0], finfo.uncompressed_size);
+
+ if (rc < 0)
+ throw ZipException(rc);
+
+ rc = unzCloseCurrentFile(m_uzFile);
+
+ if (rc < 0)
+ throw ZipException(rc);
+}
+
+/** Returns a list with the content names contained within this file
+
+*/
+ZipFile::DirectoryPtr_t ZipFile::GetDirectory() const
+{
+ DirectoryPtr_t dir(new Directory_t());
+
+ long lmax = GetFileLongestFileNameLength() + 1;
+ char* szFileName = reinterpret_cast<char*>(_alloca(lmax));
+
+ if (!szFileName)
+ throw ZipException(ERROR_NOT_ENOUGH_MEMORY);
+
+ int rc = unzGoToFirstFile(m_uzFile);
+
+ while (UNZ_OK == rc && UNZ_END_OF_LIST_OF_FILE != rc)
+ {
+ unzGetCurrentFileInfo(
+ m_uzFile, 0, szFileName, lmax, 0, 0, 0, 0);
+
+ dir->push_back(szFileName);
+
+ rc = unzGoToNextFile(m_uzFile);
+ }
+
+ if (UNZ_OK != rc && UNZ_END_OF_LIST_OF_FILE != rc)
+ throw ZipException(rc);
+
+ return dir;
+}
+
+/** Convinience query function may even realized with
+ iterating over a ZipFileDirectory returned by
+ GetDirectory */
+bool ZipFile::HasContent(const std::string& ContentName) const
+{
+ //#i34314# we need to compare package content names
+ //case in-sensitive as it is not defined that such
+ //names must be handled case sensitive
+ DirectoryPtr_t dir = GetDirectory();
+ Directory_t::iterator iter =
+ std::find_if(dir->begin(), dir->end(), internal::stricmp(ContentName));
+
+ return (iter != dir->end());
+}
+
+
+/** Returns the length of the longest file name
+ in the current zip file
+*/
+long ZipFile::GetFileLongestFileNameLength() const
+{
+ long lmax = 0;
+ unz_file_info finfo;
+
+ int rc = unzGoToFirstFile(m_uzFile);
+
+ while (UNZ_OK == rc && UNZ_END_OF_LIST_OF_FILE != rc)
+ {
+ unzGetCurrentFileInfo(m_uzFile, &finfo, 0, 0, 0, 0, 0, 0);
+ lmax = std::max<long>(lmax, finfo.size_filename);
+ rc = unzGoToNextFile(m_uzFile);
+ }
+
+ if (UNZ_OK != rc && UNZ_END_OF_LIST_OF_FILE != rc)
+ throw ZipException(rc);
+
+ return lmax;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */