/*
* OpenVPN-GUI -- A Windows GUI for OpenVPN.
*
* Copyright (C) 2004 Mathias Sundman <mathias@nilings.se>
* 2010 Heiko Hund <heikoh@users.sf.net>
* 2016 Selva Nair <selva.nair@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (see the file COPYING included with this
* distribution); if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <windows.h>
#include "main.h"
#include "openvpn-gui-res.h"
#include "options.h"
#include "localization.h"
#include "save_pass.h"
#include "misc.h"
#include "passphrase.h"
typedef enum
{
match_false,
match_file,
match_dir
} match_t;
extern options_t o;
static match_t
match(const WIN32_FIND_DATA *find, const TCHAR *ext)
{
size_t ext_len = _tcslen(ext);
int i;
if (find->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
return match_dir;
if (ext_len == 0)
return match_file;
i = _tcslen(find->cFileName) - ext_len - 1;
if (i > 0 && find->cFileName[i] == '.'
&& _tcsicmp(find->cFileName + i + 1, ext) == 0)
return match_file;
return match_false;
}
static bool
CheckReadAccess (const TCHAR *dir, const TCHAR *file)
{
TCHAR path[MAX_PATH];
_sntprintf_0 (path, _T("%s\\%s"), dir, file);
return CheckFileAccess (path, GENERIC_READ);
}
static int
ConfigAlreadyExists(TCHAR *newconfig)
{
int i;
for (i = 0; i < o.num_configs; ++i)
{
if (_tcsicmp(o.conn[i].config_file, newconfig) == 0)
return true;
}
return false;
}
static void
AddConfigFileToList(int config, const TCHAR *filename, const TCHAR *config_dir)
{
connection_t *c = &o.conn[config];
int i;
_tcsncpy(c->config_file, filename, _countof(c->config_file) - 1);
_tcsncpy(c->config_dir, config_dir, _countof(c->config_dir) - 1);
_tcsncpy(c->config_name, c->config_file, _countof(c->config_name) - 1);
c->config_name[_tcslen(c->config_name) - _tcslen(o.ext_string) - 1] = _T('\0');
_sntprintf_0(c->log_path, _T("%s\\%s.log"), o.log_dir, c->config_name);
c->manage.sk = INVALID_SOCKET;
c->manage.skaddr.sin_family = AF_INET;
c->manage.skaddr.sin_addr.s_addr = inet_addr("127.0.0.1");
c->manage.skaddr.sin_port = htons(25340 + config);
#ifndef DISABLE_CHANGE_PASSWORD
if (CheckKeyFileWriteAccess (c))
c->flags |= ALLOW_CHANGE_PASSPHRASE;
#endif
/* Check if connection should be autostarted */
for (i = 0; i < MAX_CONFIGS && o.auto_connect[i]; ++i)
{
if (_tcsicmp(c->config_file, o.auto_connect[i]) == 0)
{
c->auto_connect = true;
break;
}
}
/* check whether passwords are saved */
if (IsAuthPassSaved(c->config_name))
c->flags |= FLAG_SAVE_AUTH_PASS;
if (IsKeyPassSaved(c->config_name))
c->flags |= FLAG_SAVE_KEY_PASS;
}
static void
BuildFileList0(const TCHAR *config_dir, bool warn_duplicates)
{
WIN32_FIND_DATA find_obj;
HANDLE find_handle;
TCHAR find_string[MAX_PATH];
TCHAR subdir_table[MAX_CONFIG_SUBDIRS][MAX_PATH];
int subdirs = 0;
int i;
_sntprintf_0(find_string, _T("%s\\*"), config_dir);
find_handle = FindFirstFile(find_string, &find_obj);
if (find_handle == INVALID_HANDLE_VALUE)
return;
/* Loop over each config file in main config dir */
do
{
if (o.num_configs >= MAX_CONFIGS)
{
ShowLocalizedMsg(IDS_ERR_MANY_CONFIGS, MAX_CONFIGS);
break;
}
match_t match_type = match(&find_obj, o.ext_string);
if (match_type == match_file)
{
if (ConfigAlreadyExists(find_obj.cFileName))
{
if (warn_duplicates)
ShowLocalizedMsg(IDS_ERR_CONFIG_EXIST, find_obj.cFileName);
continue;
}
if (CheckReadAccess (config_dir, find_obj.cFileName))
AddConfigFileToList(o.num_configs++, find_obj.cFileName, config_dir);
}
else if (match_type == match_dir)
{
if (_tcsncmp(find_obj.cFileName, _T("."), _tcslen(find_obj.cFileName)) != 0
&& _tcsncmp(find_obj.cFileName, _T(".."), _tcslen(find_obj.cFileName)) != 0
&& subdirs < MAX_CONFIG_SUBDIRS)
{
/* Add dir to dir_table */
_sntprintf_0(subdir_table[subdirs], _T("%s\\%s"), config_dir, find_obj.cFileName);
subdirs++;
}
}
} while (FindNextFile(find_handle, &find_obj));
FindClose(find_handle);
/* Loop over each config file in every subdir */
for (i = 0; i < subdirs; ++i)
{
_sntprintf_0(find_string, _T("%s\\*"), subdir_table[i]);
find_handle = FindFirstFile (find_string, &find_obj);
if (find_handle == INVALID_HANDLE_VALUE)
continue;
do
{
if (o.num_configs >= MAX_CONFIGS)
{
ShowLocalizedMsg(IDS_ERR_MANY_CONFIGS, MAX_CONFIGS);
FindClose(find_handle);
return;
}
/* does file have the correct type and extension? */
if (match(&find_obj, o.ext_string) != match_file)
continue;
if (ConfigAlreadyExists(find_obj.cFileName))
{
if (warn_duplicates)
ShowLocalizedMsg(IDS_ERR_CONFIG_EXIST, find_obj.cFileName);
continue;
}
if (CheckReadAccess (subdir_table[i], find_obj.cFileName))
AddConfigFileToList(o.num_configs++, find_obj.cFileName, subdir_table[i]);
} while (FindNextFile(find_handle, &find_obj));
FindClose(find_handle);
}
}
void
BuildFileList()
{
static bool issue_warnings = true;
/*
* If no connections are active reset num_configs and rescan
* to make a new list. Else we keep all current configs and
* rescan to add any new one's found
*/
if (CountConnState(disconnected) == o.num_configs)
o.num_configs = 0;
BuildFileList0 (o.config_dir, issue_warnings);
if (_tcscmp (o.global_config_dir, o.config_dir))
BuildFileList0 (o.global_config_dir, issue_warnings);
if (o.num_configs == 0 && issue_warnings)
ShowLocalizedMsg(IDS_NFO_NO_CONFIGS);
issue_warnings = false;
}