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/**
* This file is part of Hercules.
* http://herc.ws - http://github.com/HerculesWS/Hercules
*
* Copyright (C) 2012-2018 Hercules Dev Team
* Copyright (C) Athena Dev Teams
*
* Hercules 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.
*
* 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/>.
*/
#define HERCULES_CORE
#include "loginlog.h"
#include "common/cbasetypes.h"
#include "common/conf.h"
#include "common/mmo.h"
#include "common/nullpo.h"
#include "common/showmsg.h"
#include "common/socket.h"
#include "common/sql.h"
#include "common/strlib.h"
#include <stdlib.h> // exit
static struct loginlog_interface loginlog_s;
struct loginlog_interface *loginlog;
static struct s_loginlog_dbs loginlogdbs;
// Returns the number of failed login attempts by the ip in the last minutes.
static unsigned long loginlog_failedattempts(uint32 ip, unsigned int minutes)
{
unsigned long failures = 0;
if( !loginlog->enabled )
return 0;
if( SQL_ERROR == SQL->Query(loginlog->sql_handle, "SELECT count(*) FROM `%s` WHERE `ip` = '%s' AND `rcode` = '1' AND `time` > NOW() - INTERVAL %u MINUTE",
loginlog->dbs->log_login_db, sockt->ip2str(ip,NULL), minutes) )// how many times failed account? in one ip.
Sql_ShowDebug(loginlog->sql_handle);
if( SQL_SUCCESS == SQL->NextRow(loginlog->sql_handle) )
{
char* data;
SQL->GetData(loginlog->sql_handle, 0, &data, NULL);
failures = strtoul(data, NULL, 10);
SQL->FreeResult(loginlog->sql_handle);
}
return failures;
}
/*=============================================
* Records an event in the login log
*---------------------------------------------*/
// TODO: add an enum of rcode values
static void loginlog_log(uint32 ip, const char *username, int rcode, const char *message)
{
char esc_username[NAME_LENGTH*2+1];
char esc_message[255*2+1];
int retcode;
nullpo_retv(username);
nullpo_retv(message);
if( !loginlog->enabled )
return;
SQL->EscapeStringLen(loginlog->sql_handle, esc_username, username, strnlen(username, NAME_LENGTH));
SQL->EscapeStringLen(loginlog->sql_handle, esc_message, message, strnlen(message, 255));
retcode = SQL->Query(loginlog->sql_handle,
"INSERT INTO `%s`(`time`,`ip`,`user`,`rcode`,`log`) VALUES (NOW(), '%s', '%s', '%d', '%s')",
loginlog->dbs->log_login_db, sockt->ip2str(ip,NULL), esc_username, rcode, esc_message);
if( retcode != SQL_SUCCESS )
Sql_ShowDebug(loginlog->sql_handle);
}
static bool loginlog_init(void)
{
loginlog->sql_handle = SQL->Malloc();
if (SQL_ERROR == SQL->Connect(loginlog->sql_handle, loginlog->dbs->log_db_username, loginlog->dbs->log_db_password,
loginlog->dbs->log_db_hostname, loginlog->dbs->log_db_port, loginlog->dbs->log_db_database)) {
Sql_ShowDebug(loginlog->sql_handle);
SQL->Free(loginlog->sql_handle);
exit(EXIT_FAILURE);
}
if (loginlog->dbs->log_codepage[0] != '\0' && SQL_ERROR == SQL->SetEncoding(loginlog->sql_handle, loginlog->dbs->log_codepage))
Sql_ShowDebug(loginlog->sql_handle);
loginlog->enabled = true;
return true;
}
static bool loginlog_final(void)
{
SQL->Free(loginlog->sql_handle);
loginlog->sql_handle = NULL;
return true;
}
/**
* Reads 'inter_configuration/database_names' and initializes required
* variables/Sets global configuration.
*
* @param filename Path to configuration file (used in error and warning messages).
* @param config The current config being parsed.
* @param imported Whether the current config is imported from another file.
*
* @retval false in case of error.
*/
static bool loginlog_config_read_names(const char *filename, struct config_t *config, bool imported)
{
struct config_setting_t *setting = NULL;
nullpo_retr(false, filename);
nullpo_retr(false, config);
if ((setting = libconfig->lookup(config, "inter_configuration/database_names")) == NULL) {
if (imported)
return true;
ShowError("loginlog_config_read: inter_configuration/database_names was not found in %s!\n", filename);
return false;
}
libconfig->setting_lookup_mutable_string(setting, "login_db", loginlog->dbs->log_login_db, sizeof(loginlog->dbs->log_login_db));
return true;
}
/**
* Reads 'inter_configuration.log' and initializes required variables/Sets
* global configuration.
*
* @param filename Path to configuration file (used in error and warning messages).
* @param config The current config being parsed.
* @param imported Whether the current config is imported from another file.
*
* @retval false in case of error.
*/
static bool loginlog_config_read_log(const char *filename, struct config_t *config, bool imported)
{
struct config_setting_t *setting = NULL;
nullpo_retr(false, filename);
nullpo_retr(false, config);
if ((setting = libconfig->lookup(config, "inter_configuration/log/sql_connection")) == NULL) {
if (imported)
return true;
ShowError("loginlog_config_read: inter_configuration/log/sql_connection was not found in %s!\n", filename);
return false;
}
libconfig->setting_lookup_mutable_string(setting, "db_hostname", loginlog->dbs->log_db_hostname, sizeof(loginlog->dbs->log_db_hostname));
libconfig->setting_lookup_mutable_string(setting, "db_database", loginlog->dbs->log_db_database, sizeof(loginlog->dbs->log_db_database));
libconfig->setting_lookup_mutable_string(setting, "db_username", loginlog->dbs->log_db_username, sizeof(loginlog->dbs->log_db_username));
libconfig->setting_lookup_mutable_string(setting, "db_password", loginlog->dbs->log_db_password, sizeof(loginlog->dbs->log_db_password));
libconfig->setting_lookup_uint16(setting, "db_port", &loginlog->dbs->log_db_port);
libconfig->setting_lookup_mutable_string(setting, "codepage", loginlog->dbs->log_codepage, sizeof(loginlog->dbs->log_codepage));
return true;
}
/**
* Reads 'inter_configuration' and initializes required variables/Sets global
* configuration.
*
* @param filename Path to configuration file.
* @param config The current config being parsed.
* @param imported Whether the current config is imported from another file.
*
* @retval false in case of error.
**/
static bool loginlog_config_read(const char *filename, bool imported)
{
struct config_t config;
const char *import = NULL;
bool retval = true;
nullpo_retr(false, filename);
if (!libconfig->load_file(&config, filename))
return false; // Error message is already shown by libconfig->load_file
if (!loginlog->config_read_names(filename, &config, imported))
retval = false;
if (!loginlog->config_read_log(filename, &config, imported))
retval = false;
if (libconfig->lookup_string(&config, "import", &import) == CONFIG_TRUE) {
if (strcmp(import, filename) == 0 || strcmp(import, "conf/common/inter-server.conf") == 0) {
ShowWarning("inter_config_read: Loop detected! Skipping 'import'...\n");
} else {
if (!loginlog->config_read(import, true))
retval = false;
}
}
libconfig->destroy(&config);
return retval;
}
void loginlog_defaults(void)
{
loginlog = &loginlog_s;
loginlog->dbs = &loginlogdbs;
loginlog->sql_handle = NULL;
loginlog->enabled = false;
// Sql settings
strcpy(loginlog->dbs->log_db_hostname, "127.0.0.1");
loginlog->dbs->log_db_port = 3306;
strcpy(loginlog->dbs->log_db_username, "ragnarok");
strcpy(loginlog->dbs->log_db_password, "ragnarok");
strcpy(loginlog->dbs->log_db_database, "ragnarok");
*loginlog->dbs->log_codepage = 0;
strcpy(loginlog->dbs->log_login_db, "loginlog");
loginlog->failedattempts = loginlog_failedattempts;
loginlog->log = loginlog_log;
loginlog->init = loginlog_init;
loginlog->final = loginlog_final;
loginlog->config_read_names = loginlog_config_read_names;
loginlog->config_read_log = loginlog_config_read_log;
loginlog->config_read = loginlog_config_read;
}
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