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/* -*- C++ -*- */
//=======================================================================
/**
* @file ZIP_Wrapper.h
*
* $Id$
*
* Purpose: to provide a wrapper around minizip for easy handling of
* ZIP archives. This wrapper can be used as an auxiliary
* class that allows a program to become ZIP-aware
*
* @author Stoyan Paunov, Vipul Singh
*
*
*/
//=======================================================================
#ifndef _ZIP_WRAPPER_H_
#define _ZIP_WRAPPER_H_
#include "ace/Containers_T.h" //for ACE_Double_Linked_List
#include "ace/Message_Block.h" //for ACE_Message_Block
#include "ace/SString.h" //for ACE_CString
#include "ace/Log_Msg.h"
#include "ace/Synch.h"
#include "ace/OS_NS_fcntl.h" //for open
#include "ace/OS_NS_sys_stat.h" //for filesize and mkdir
#include <string>
#include "unzip.h"
/**
* @class ZIP_File_Info
*
* This class is used as a carrier of information
* about entities residing inside a ZIP archive
*/
class ZIP_File_Info
{
public:
ACE_CString name_;
size_t size_;
ZIP_File_Info* next_;
ZIP_File_Info* prev_;
ZIP_File_Info (char* name, size_t size);
ZIP_File_Info ();
};
/**
* @class ZIP_Wrappers
*
* This class is the actual workhorse that provides all of
* the necessary functionality
*/
class ZIP_Wrapper
{
public:
/// Get file and store it into an ACE_Message_Block. The function
/// averts subdirectory traversal problems.
/// NOTE: Be sure to release the message block even if the function returns
/// false becuase the return value might be due to unsuccessful allocation
///archive_path is the zip archive with the path
///filename is the name of the file to be looked for in the zip archive.
///the file is stored in ACE message block.
static bool get_file (char* archive_path, char* filename,
ACE_Message_Block &file);
/// uncompress the zip file
/// The zip file will be uncompressed into a directory with the
///name of zip archive.
/// The path is assumed to be an existing directory
///zip_archive is the arcive to be uncompressed with full path.
///path is used for creating a directory with the name of zip archive.
static bool uncompress (char* zip_archive, char* path = "",
bool verbose = true);
/// Get a list of the files in the archive
///zip_name is the name of zipfile with fullpath.
///list stores information about each entry in zip file.
static int file_list_info (char* zip_name,
ACE_Double_Linked_List<ZIP_File_Info> &list);
///Check if an entry of a zip file is a file or directory
///We assume a directoryname terminates with a forward slash
///Returns 1 for directory while 0 for file.
///filename_inzip is an entry in a zipfile
static int checkdir (char* filename_inzip);
///Create directory structure if entry in zipfile is a directory
///filename_inzip is an entry in a zipfile
///arch_dir stores the name of the directory to be created
static int makethedir (char* filename_inzip, ACE_CString arch_dir);
///If entry in zipfile is a file, then read the file and write
/// the uncompressed data at the proper filepath.
///filename_inzip is an entry in a zipfile
///uf refers to the zip archive
///file_info is used to get information about current file
///verbose decides if the details are to be printed or not
///arch_dir is the name of file with full path where it is to be
///uncompressed
static int handlethefile (char* filename_inzip, unzFile uf,
unz_file_info file_info,
bool verbose, ACE_CString arch_dir);
};
#endif
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