/* Chrysalide - Outil d'analyse de fichiers binaires
 * params.c - éléments de la configuration principale
 *
 * Copyright (C) 2009-2012 Cyrille Bagard
 *
 *  This file is part of Chrysalide.
 *
 *  OpenIDA 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  OpenIDA 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
 */


#include "params.h"


#include <limits.h>
#include <malloc.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>



/******************************************************************************
*                                                                             *
*  Paramètres  : -                                                            *
*                                                                             *
*  Description : Détermine une fois pour toute la désignation de l'usager.    *
*                                                                             *
*  Retour      : Nom déterminé à libérer de la mémoire.                       *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

static char *get_author_name(void)
{
    char *result;                           /* Désignation à retourner     */
    char *chrysalide_user;                  /* Eventuel nom spécifique     */
    char *logname;                          /* Nom depuis l'environnement  */
    char hostname[HOST_NAME_MAX];           /* Nom de la machine courante  */
    int ret;                                /* Bilan d'un appel            */
    size_t length;                          /* Taille de la désignation    */

    chrysalide_user = getenv("CHRYSALIDE_USER");

    if (chrysalide_user != NULL)
        result = strdup(chrysalide_user);

    else
    {
        logname = getenv("LOGNAME");

        ret = gethostname(hostname, HOST_NAME_MAX);
        if (ret != 0)
            hostname[0] = '\0';

        if (logname != NULL && hostname[0] != '\0')
        {
            length = strlen(logname) + 1 + strlen(hostname) + 1;
            result = (char *)calloc(length, sizeof(char));
            snprintf(result, length, "%s@%s", logname, hostname);
        }
        else if (logname != NULL && hostname[0] == '\0')
        {
            length = strlen(logname) + 1;
            result = (char *)calloc(length, sizeof(char));
            snprintf(result, length, "%s", logname);
        }
        else if (logname == NULL && hostname[0] != '\0')
        {
            length = 1 + strlen(hostname) + 1;
            result = (char *)calloc(length, sizeof(char));
            snprintf(result, length, "@%s", hostname);
        }
        else
            result = strdup("anonymous");

    }

    return result;

}


/******************************************************************************
*                                                                             *
*  Paramètres  : -                                                            *
*                                                                             *
*  Description : Procède au chargement de la configuration principale.        *
*                                                                             *
*  Retour      : Bilan de l'opération.                                        *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

bool load_main_config_parameters(void)
{
    GGenConfig *config;                     /* Configuration à charger     */
    GCfgParam *param;                       /* Paramètre chargé            */
    char *string;                           /* Valeur sous forme de texte  */

    config = g_generic_config_new("main");
    set_main_configuration(config);

    string = get_author_name();
    param = g_generic_config_create_param(config, MPK_AUTHOR_NAME, CPT_STRING, string);
    free(string);
    if (param == NULL) return false;

    param = g_generic_config_create_param(config, MPK_REMOTE_HOST, CPT_STRING, "localhost");
    if (param == NULL) return false;

    param = g_generic_config_create_param(config, MPK_REMOTE_PORT, CPT_INTEGER, 9999);
    if (param == NULL) return false;

    param = g_generic_config_create_param(config, MPK_LOCAL_HOST, CPT_STRING, "localhost");
    if (param == NULL) return false;

    param = g_generic_config_create_param(config, MPK_LOCAL_PORT, CPT_INTEGER, 1337);
    if (param == NULL) return false;

    param = g_generic_config_create_param(config, MPK_SERVER_BACKLOG, CPT_INTEGER, 20);
    if (param == NULL) return false;

    param = g_generic_config_create_param(config, MPK_LAST_PROJECT, CPT_STRING, NULL);
    if (param == NULL) return false;

    param = g_generic_config_create_param(config, MPK_ELLIPSIS_HEADER, CPT_INTEGER, 54);
    if (param == NULL) return false;

    param = g_generic_config_create_param(config, MPK_ELLIPSIS_TAB, CPT_INTEGER, 35);
    if (param == NULL) return false;

    param = g_generic_config_create_param(config, MPK_KEYBINDINGS_EDIT, CPT_STRING, "<Shift>F2");
    if (param == NULL) return false;

    param = g_generic_config_create_param(config, MPK_AUTO_SAVE, CPT_BOOLEAN, true);
    if (param == NULL) return false;

    return true;

}


/******************************************************************************
*                                                                             *
*  Paramètres  : -                                                            *
*                                                                             *
*  Description : Procède au déchargement de la configuration principale.      *
*                                                                             *
*  Retour      : -                                                            *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

void unload_main_config_parameters(void)
{
    GGenConfig *config;                     /* Configuration à décharger   */

    config = get_main_configuration();

    g_object_unref(G_OBJECT(config));

}


/******************************************************************************
*                                                                             *
*  Paramètres  : config = éventuelle configuration à définir comme principale.*
*                                                                             *
*  Description : Fournit un lien vers la configuration principale.            *
*                                                                             *
*  Retour      : Configuration prête à emploi ou NULL si aucune définie.      *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

GGenConfig *_get_main_configuration(GGenConfig *config)
{
    static GGenConfig *result = NULL;       /* Structure à retourner       */

    if (config != NULL)
        result = config;

    return result;

}