455 lines
11 KiB
C++
455 lines
11 KiB
C++
// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of the Andrey N. Sabelnikov nor the
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// names of its contributors may be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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#ifndef _FILE_IO_UTILS_H_
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#define _FILE_IO_UTILS_H_
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//#include <sys/types.h>
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//#include <sys/stat.h>
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#include <iostream>
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#include <boost/filesystem.hpp>
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#ifndef MAKE64
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#define MAKE64(low,high) ((__int64)(((DWORD)(low)) | ((__int64)((DWORD)(high))) << 32))
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#endif
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#ifdef WINDOWS_PLATFORM
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#include <psapi.h>
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#include <strsafe.h>
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#include <string.h>
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#include <mbstring.h>
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#endif
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namespace epee
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{
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namespace file_io_utils
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{
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#ifdef WINDOWS_PLATFORM
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inline
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std::string get_temp_file_name_a()
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{
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std::string str_result;
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char sz_temp[MAX_PATH*2] = {0};
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if(!::GetTempPathA( sizeof( sz_temp ), sz_temp ))
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return str_result;
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char sz_temp_file[MAX_PATH*2] = {0};
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if(!::GetTempFileNameA( sz_temp, "mail", 0, sz_temp_file))
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return str_result;
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sz_temp_file[sizeof(sz_temp_file)-1] = 0; //be happy!
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str_result = sz_temp_file;
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return str_result;
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}
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#ifdef BOOST_LEXICAL_CAST_INCLUDED
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inline
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bool get_not_used_filename(const std::string& folder, OUT std::string& result_name)
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{
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DWORD folder_attr = ::GetFileAttributesA(folder.c_str());
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if(folder_attr == INVALID_FILE_ATTRIBUTES)
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return false;
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if(!(folder_attr&FILE_ATTRIBUTE_DIRECTORY))
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return false;
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std::string base_name = folder + "\\tmp";
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std::string tmp_name;
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bool name_found = false;
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int current_index = 0;
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tmp_name = base_name + boost::lexical_cast<std::string>(current_index) + ".tmp";
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while(!name_found)
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{
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if(INVALID_FILE_ATTRIBUTES == ::GetFileAttributesA(tmp_name.c_str()))
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name_found = true;
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else
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{
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current_index++;
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tmp_name = base_name + boost::lexical_cast<std::string>(current_index) + ".tmp";
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}
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}
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result_name = tmp_name;
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return true;
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}
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#endif
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inline
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std::string get_temp_folder_a()
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{
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std::string str_result;
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char sz_temp[MAX_PATH*2] = {0};
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if(!::GetTempPathA( sizeof( sz_temp ), sz_temp ))
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return str_result;
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sz_temp[(sizeof(sz_temp)/sizeof(sz_temp[0])) -1] = 0;
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str_result = sz_temp;
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return str_result;
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}
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std::string convert_from_device_path_to_standart(const std::string& path)
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{
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STRSAFE_LPSTR pszFilename = (STRSAFE_LPSTR)path.c_str();
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// Translate path with device name to drive letters.
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char szTemp[4000] = {0};
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if (::GetLogicalDriveStringsA(sizeof(szTemp)-1, szTemp))
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{
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char szName[MAX_PATH];
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char szDrive[3] = " :";
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BOOL bFound = FALSE;
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char* p = szTemp;
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do
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{
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// Copy the drive letter to the template string
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*szDrive = *p;
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// Look up each device name
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if (::QueryDosDeviceA(szDrive, szName, sizeof(szName)))
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{
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UINT uNameLen = strlen(szName);
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if (uNameLen < MAX_PATH)
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{
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bFound = _mbsnbicmp((const unsigned char*)pszFilename, (const unsigned char*)szName,
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uNameLen) == 0;
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if (bFound)
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{
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// Reconstruct pszFilename using szTempFile
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// Replace device path with DOS path
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char szTempFile[MAX_PATH] = {0};
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StringCchPrintfA(szTempFile,
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MAX_PATH,
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"%s%s",
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szDrive,
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pszFilename+uNameLen);
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return szTempFile;
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//::StringCchCopyNA(pszFilename, MAX_PATH+1, szTempFile, strlen(szTempFile));
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}
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}
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}
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// Go to the next NULL character.
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while (*p++);
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} while (!bFound && *p); // end of string
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}
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return "";
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}
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inline
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std::string get_process_path_by_pid(DWORD pid)
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{
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std::string res;
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HANDLE hprocess = 0;
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if( hprocess = ::OpenProcess( PROCESS_QUERY_INFORMATION|PROCESS_VM_READ, FALSE, pid) )
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{
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char buff[MAX_PATH]= {0};
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if(!::GetModuleFileNameExA( hprocess, 0, buff, MAX_PATH - 1 ))
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res = "Unknown_b";
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else
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{
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buff[MAX_PATH - 1]=0; //be happy!
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res = buff;
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std::string::size_type a = res.rfind( '\\' );
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if ( a != std::string::npos )
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res.erase( 0, a+1);
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}
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::CloseHandle( hprocess );
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}else
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res = "Unknown_a";
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return res;
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}
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inline
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std::wstring get_temp_file_name_w()
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{
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std::wstring str_result;
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wchar_t sz_temp[MAX_PATH*2] = {0};
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if(!::GetTempPathW( sizeof(sz_temp)/sizeof(sz_temp[0]), sz_temp ))
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return str_result;
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wchar_t sz_temp_file[MAX_PATH+1] = {0};
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if(!::GetTempFileNameW( sz_temp, L"mail", 0, sz_temp_file))
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return str_result;
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sz_temp_file[(sizeof(sz_temp_file)/sizeof(sz_temp_file[0]))-1] = 0; //be happy!
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str_result = sz_temp_file;
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return str_result;
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}
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#endif
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inline
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bool is_file_exist(const std::string& path)
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{
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boost::filesystem::path p(path);
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return boost::filesystem::exists(p);
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}
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/*
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inline
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bool save_string_to_handle(HANDLE hfile, const std::string& str)
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{
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if( INVALID_HANDLE_VALUE != hfile )
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{
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DWORD dw;
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if( !::WriteFile( hfile, str.data(), (DWORD) str.size(), &dw, NULL) )
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{
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int err_code = GetLastError();
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//LOG_PRINT("Failed to write to file handle: " << hfile<< " Last error code:" << err_code << " : " << log_space::get_win32_err_descr(err_code), LOG_LEVEL_2);
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return false;
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}
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::CloseHandle(hfile);
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return true;
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}else
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{
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//LOG_WIN32_ERROR(::GetLastError());
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return false;
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}
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return false;
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}*/
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inline
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bool save_string_to_file(const std::string& path_to_file, const std::string& str)
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{
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try
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{
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std::ofstream fstream;
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fstream.exceptions(std::ifstream::failbit | std::ifstream::badbit);
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fstream.open(path_to_file, std::ios_base::binary | std::ios_base::out | std::ios_base::trunc);
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fstream << str;
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fstream.close();
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return true;
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}
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catch(...)
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{
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return false;
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}
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}
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/*
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inline
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bool load_form_handle(HANDLE hfile, std::string& str)
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{
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if( INVALID_HANDLE_VALUE != hfile )
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{
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bool res = true;
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DWORD dw = 0;
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DWORD fsize = ::GetFileSize(hfile, &dw);
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if(fsize > 300000000)
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{
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::CloseHandle(hfile);
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return false;
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}
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if(fsize)
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{
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str.resize(fsize);
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if(!::ReadFile( hfile, (LPVOID)str.data(), (DWORD)str.size(), &dw, NULL))
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res = false;
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}
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::CloseHandle(hfile);
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return res;
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}
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return false;
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}
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*/
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inline
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bool get_file_time(const std::string& path_to_file, OUT time_t& ft)
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{
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boost::system::error_code ec;
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ft = boost::filesystem::last_write_time(boost::filesystem::path(path_to_file), ec);
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if(!ec)
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return true;
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else
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return false;
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}
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inline
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bool set_file_time(const std::string& path_to_file, const time_t& ft)
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{
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boost::system::error_code ec;
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boost::filesystem::last_write_time(boost::filesystem::path(path_to_file), ft, ec);
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if(!ec)
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return true;
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else
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return false;
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}
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inline
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bool load_file_to_string(const std::string& path_to_file, std::string& target_str)
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{
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try
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{
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std::ifstream fstream;
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fstream.exceptions(std::ifstream::failbit | std::ifstream::badbit);
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fstream.open(path_to_file, std::ios_base::binary | std::ios_base::in | std::ios::ate);
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std::ifstream::pos_type file_size = fstream.tellg();
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if(file_size > 1000000000)
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return false;//don't go crazy
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size_t file_size_t = static_cast<size_t>(file_size);
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target_str.resize(file_size_t);
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fstream.seekg (0, std::ios::beg);
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fstream.read((char*)target_str.data(), target_str.size());
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fstream.close();
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return true;
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}
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catch(...)
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{
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return false;
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}
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}
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inline
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bool append_string_to_file(const std::string& path_to_file, const std::string& str)
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{
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try
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{
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std::ofstream fstream;
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fstream.exceptions(std::ifstream::failbit | std::ifstream::badbit);
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fstream.open(path_to_file.c_str(), std::ios_base::binary | std::ios_base::out | std::ios_base::app);
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fstream << str;
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fstream.close();
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return true;
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}
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catch(...)
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{
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return false;
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}
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}
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/*
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bool remove_dir_and_subirs(const char* path_to_dir);
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inline
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bool clean_dir(const char* path_to_dir)
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{
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if(!path_to_dir)
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return false;
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std::string folder = path_to_dir;
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WIN32_FIND_DATAA find_data = {0};
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HANDLE hfind = ::FindFirstFileA((folder + "\\*.*").c_str(), &find_data);
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if(INVALID_HANDLE_VALUE == hfind)
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return false;
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do{
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if(!strcmp("..", find_data.cFileName) || (!strcmp(".", find_data.cFileName)))
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continue;
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if(find_data.dwFileAttributes&FILE_ATTRIBUTE_DIRECTORY)
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{
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if(!remove_dir_and_subirs((folder + "\\" + find_data.cFileName).c_str()))
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return false;
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}else
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{
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if(!::DeleteFileA((folder + "\\" + find_data.cFileName).c_str()))
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return false;
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}
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}while(::FindNextFileA(hfind, &find_data));
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::FindClose(hfind);
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return true;
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}
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*/
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#ifdef WINDOWS_PLATFORM
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inline bool get_folder_content(const std::string& path, std::list<WIN32_FIND_DATAA>& OUT target_list)
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{
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WIN32_FIND_DATAA find_data = {0};
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HANDLE hfind = ::FindFirstFileA((path + "\\*.*").c_str(), &find_data);
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if(INVALID_HANDLE_VALUE == hfind)
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return false;
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do{
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if(!strcmp("..", find_data.cFileName) || (!strcmp(".", find_data.cFileName)))
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continue;
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target_list.push_back(find_data);
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}while(::FindNextFileA(hfind, &find_data));
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::FindClose(hfind);
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return true;
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}
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#endif
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inline bool get_folder_content(const std::string& path, std::list<std::string>& OUT target_list, bool only_files = false)
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{
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try
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{
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boost::filesystem::directory_iterator end_itr; // default construction yields past-the-end
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for ( boost::filesystem::directory_iterator itr( path ); itr != end_itr; ++itr )
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{
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if ( only_files && boost::filesystem::is_directory(itr->status()) )
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{
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continue;
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}
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target_list.push_back(itr->path().filename().string());
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}
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}
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catch(...)
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{
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return false;
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}
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return true;
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}
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}
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}
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#endif //_FILE_IO_UTILS_H_
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