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wmud/wmud/configuration.c

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/* wMUD - Yet another MUD codebase by W00d5t0ck
* Copyright (C) 2012 - Gergely POLONKAI
*
* configuration.c: configuration file related functions
*
* 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. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib.h>
#include "configuration.h"
/**
* SECTION:configuration
* @short_description: Configuration file handling functions
* @title: Configuration file handling functions
*
*/
/**
* active_config:
*
* the currently active configuration directives
*/
ConfigData *active_config = NULL;
GQuark
wmud_config_error_quark()
{
return g_quark_from_static_string("wmud-config-error");
}
/**
* wmud_configdata_free:
* @config_data: pointer to the ConfigData struct to free
*
* Correctly free a ConfigData struct with all its members
*/
void
wmud_configdata_free(ConfigData **config_data)
{
if ((*config_data)->admin_email) {
g_free((*config_data)->admin_email);
}
if ((*config_data)->database_dsn) {
g_free((*config_data)->database_dsn);
}
if ((*config_data)->smtp_server) {
g_free((*config_data)->smtp_server);
}
if ((*config_data)->smtp_username) {
g_free((*config_data)->smtp_username);
}
if ((*config_data)->smtp_password) {
g_free((*config_data)->smtp_password);
}
if ((*config_data)->smtp_sender) {
g_free((*config_data)->smtp_sender);
}
g_free(*config_data);
*config_data = NULL;
}
/**
* wmud_config_init:
* @config_data: a pointer to a ConfigData struct. This will be filled with the
* configuration file's data
* @err: The GError in which the config handling status should be returned
*
* Parses the default configuration file, and sets different variables
* according to it.
*
* Return value: %TRUE if parsing was successful. %FALSE otherwise.
*/
gboolean
wmud_config_init(ConfigData **config_data, GError **err)
{
GString *config_file = g_string_new(WMUD_CONFDIR);
GKeyFile *config;
GError *in_err = NULL;
gchar *pos;
if (!config_data)
return FALSE;
if (*config_data) {
g_clear_error(err);
g_set_error(err,
WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_REUSE,
"Configuration pointer reuse. Please file a bug report!");
return FALSE;
}
*config_data = g_new0(ConfigData, 1);
g_string_append(config_file, "/wmud.conf");
config = g_key_file_new();
/* TODO: Error checking */
g_key_file_load_from_file(config, config_file->str, 0, &in_err);
if (!g_key_file_has_group(config, "global")) {
g_set_error(err,
WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_NOGLOBAL,
"Config file (%s) does not contain a [global] group",
config_file->str);
g_key_file_free(config);
g_string_free(config_file, TRUE);
return FALSE;
}
if (!g_key_file_has_group(config, "smtp")) {
g_set_error(err,
WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_NOSMTP,
"Config file (%s) does not contain an [smtp] group",
config_file->str);
g_key_file_free(config);
g_string_free(config_file, TRUE);
return FALSE;
}
if (!g_key_file_has_group(config, "database")) {
g_set_error(err,
WMUD_CONFIG_ERROR,
WMUD_CONFIG_ERROR_NODATABASE,
"Config file (%s) does not contain a [database] group",
config_file->str);
g_key_file_free(config);
g_string_free(config_file, TRUE);
return FALSE;
}
g_clear_error(&in_err);
(*config_data)->port = g_key_file_get_integer(config,
"global", "port",
&in_err);
if (in_err) {
if (g_error_matches(in_err,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_KEY_NOT_FOUND)) {
(*config_data)->port = DEFAULT_PORT;
} else if (g_error_matches(in_err,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_INVALID_VALUE)) {
g_set_error(err,
WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_BADPORT,
"Config file (%s) contains an invalid port number",
config_file->str);
g_key_file_free(config);
g_string_free(config_file, TRUE);
(*config_data)->port = 0;
return FALSE;
}
return FALSE;
}
g_clear_error(&in_err);
(*config_data)->admin_email = g_key_file_get_string(config,
"global", "admin email",
&in_err);
if (in_err && g_error_matches(in_err,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_KEY_NOT_FOUND)) {
g_set_error(err,
WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_NOEMAIL,
"Config file (%s) does not contain an admin e-mail address",
config_file->str);
g_key_file_free(config);
g_string_free(config_file, TRUE);
wmud_configdata_free(config_data);
return FALSE;
}
g_clear_error(&in_err);
(*config_data)->smtp_server = g_key_file_get_string(config,
"smtp", "smtp server",
&in_err);
if (in_err && g_error_matches(in_err,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_KEY_NOT_FOUND)) {
g_set_error(err,
WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_NOSMTPSERVER,
"Config file (%s) does not contain an smtp server address",
config_file->str);
g_key_file_free(config);
g_string_free(config_file, TRUE);
wmud_configdata_free(config_data);
return FALSE;
}
g_clear_error(&in_err);
(*config_data)->smtp_sender = g_key_file_get_string(config,
"smtp", "smtp sender",
&in_err);
if (in_err && g_error_matches(in_err,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_KEY_NOT_FOUND)) {
g_set_error(err,
WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_NOSMTPSENDER,
"Config file (%s) does not contain an smtp sender name",
config_file->str);
g_key_file_free(config);
g_string_free(config_file, TRUE);
wmud_configdata_free(config_data);
return FALSE;
}
g_clear_error(&in_err);
(*config_data)->database_dsn = g_key_file_get_string(config,
"database", "dsn",
&in_err);
if (in_err && g_error_matches(in_err,
G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_KEY_NOT_FOUND)) {
g_set_error(err,
WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_NOWORLD,
"Config file (%s) does not contain a database dsn",
config_file->str);
g_key_file_free(config);
g_string_free(config_file, TRUE);
wmud_configdata_free(config_data);
return FALSE;
}
if ((pos = g_strstr_len((*config_data)->database_dsn,
-1, "{statedir}")) != NULL) {
guint real_pos = pos - (*config_data)->database_dsn;
GString *tmp = g_string_new((*config_data)->database_dsn);
g_string_erase(tmp, real_pos, 10);
g_string_insert(tmp, real_pos, WMUD_STATEDIR);
(*config_data)->database_dsn = tmp->str;
g_string_free(tmp, FALSE);
}
g_key_file_free(config);
g_string_free(config_file, TRUE);
return TRUE;
}
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