path: root/src/login_sql/login.c

// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder

#include <sys/types.h>

#ifdef __WIN32
	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <winsock2.h>
#else
	#include <sys/socket.h>
	#include <netinet/in.h>
	#include <arpa/inet.h>
	#include <netdb.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h> // for stat/lstat/fstat
#include <signal.h>
#include <fcntl.h>
#include <string.h>

//add include for DBMS(mysql)
#include <mysql.h>

#include "../common/cbasetypes.h"
#include "../common/core.h"
#include "../common/socket.h"
#include "../common/db.h"
#include "../common/timer.h"
#include "../common/malloc.h"
#include "../common/strlib.h"
#include "../common/mmo.h"
#include "../common/showmsg.h"
#include "../common/version.h"
#include "../common/md5calc.h"
#include "login.h"


struct Login_Config {

	uint32 login_ip;								// the address to bind to
	uint16 login_port;								// the port to bind to
	bool log_login;									// whether to log login server actions or not
	char date_format[32];							// date format used in messages
	bool console;									// console input system enabled?
	unsigned int ip_sync_interval;					// interval (in minutes) to execute a DNS/IP update (for dynamic IPs)
	int min_level_to_connect;						// minimum level of player/GM (0: player, 1-99: gm) to connect
	bool new_account_flag;							// autoregistration via _M/_F ?
	bool case_sensitive;							// are logins case sensitive ?
	bool use_md5_passwds;							// work with password hashes instead of plaintext passwords?
	bool login_gm_read;								// should the login server handle info about gm accounts?
	bool online_check;								// reject incoming players that are already registered as online ?
	bool check_client_version;						// check the clientversion set in the clientinfo ?
	unsigned int client_version_to_connect;			// the client version needed to connect (if checking is enabled)
	bool ipban;										// perform IP blocking (via contents of `ipbanlist`) ?
	bool dynamic_pass_failure_ban;					// automatic IP blocking due to failed login attemps ?
	unsigned int dynamic_pass_failure_ban_interval;	// how far to scan the loginlog for password failures
	unsigned int dynamic_pass_failure_ban_limit;	// number of failures needed to trigger the ipban
	unsigned int dynamic_pass_failure_ban_duration;	// duration of the ipban
	bool use_dnsbl;									// dns blacklist blocking ?
	char dnsbl_servs[1024];							// comma-separated list of dnsbl servers
	
} login_config;

int login_fd; // login server socket
int server_num; // number of connected char servers
int server_fd[MAX_SERVERS]; // char server sockets
struct mmo_char_server server[MAX_SERVERS]; // char server data

// Advanced subnet check [LuzZza]
struct _subnet {
	uint32 subnet;
	uint32 mask;
	uint32 char_ip;
	uint32 map_ip;
} subnet[16];

int subnet_count = 0;


struct gm_account* gm_account_db = NULL;
unsigned int GM_num = 0; // number of gm accounts

//Account registration flood protection [Kevin]
int allowed_regs = 1;
int time_allowed = 10; //in seconds
int num_regs = 0;
unsigned int new_reg_tick = 0;

MYSQL mysql_handle;
MYSQL_RES* 	sql_res ;
MYSQL_ROW	sql_row ;
char tmpsql[65535];

// database parameters
int login_server_port = 3306;
char login_server_ip[32] = "127.0.0.1";
char login_server_id[32] = "ragnarok";
char login_server_pw[32] = "ragnarok";
char login_server_db[32] = "ragnarok";
char default_codepage[32] = "";

char login_db[256] = "login";
char loginlog_db[256] = "loginlog";
char reg_db[256] = "global_reg_value";

// added to help out custom login tables, without having to recompile
// source so options are kept in the login_athena.conf or the inter_athena.conf
char login_db_account_id[256] = "account_id";
char login_db_userid[256] = "userid";
char login_db_user_pass[256] = "user_pass";
char login_db_level[256] = "level";

//-----------------------------------------------------

#define AUTH_FIFO_SIZE 256
struct {
	int account_id, login_id1, login_id2;
	uint32 ip;
	char sex;
	bool delflag;
} auth_fifo[AUTH_FIFO_SIZE];

int auth_fifo_pos = 0;

struct online_login_data {
	int account_id;
	int waiting_disconnect;
	short char_server;
};

//-----------------------------------------------------

static char md5key[20], md5keylen = 16;

struct dbt *online_db;

static void* create_online_user(DBKey key, va_list args)
{
	struct online_login_data *p;
	p = aCalloc(1, sizeof(struct online_login_data));
	p->account_id = key.i;
	p->char_server = -1;
	p->waiting_disconnect = -1;
	return p;	
}

int charif_sendallwos(int sfd, unsigned char *buf, unsigned int len);
static int waiting_disconnect_timer(int tid, unsigned int tick, int id, int data);

//-----------------------------------------------------
// Online User Database [Wizputer]
//-----------------------------------------------------

void add_online_user(int char_server, int account_id)
{
	struct online_login_data *p;
	if (!login_config.online_check)
		return;
	p = idb_ensure(online_db, account_id, create_online_user);
	p->char_server = char_server;
	if (p->waiting_disconnect != -1)
	{
		delete_timer(p->waiting_disconnect, waiting_disconnect_timer);
		p->waiting_disconnect = -1;
	}
}

void remove_online_user(int account_id)
{
	if(!login_config.online_check)
		return;
	if (account_id == 99) { // reset all to offline
		online_db->clear(online_db, NULL); // purge db
		return;
	}
	idb_remove(online_db,account_id);
}

static int waiting_disconnect_timer(int tid, unsigned int tick, int id, int data)
{
	struct online_login_data *p;
	if ((p= idb_get(online_db, id)) != NULL && p->waiting_disconnect == id)
	{
		p->waiting_disconnect = -1;
		remove_online_user(id);
	}
	return 0;
}

static int sync_ip_addresses(int tid, unsigned int tick, int id, int data)
{
	unsigned char buf[2];
	ShowInfo("IP Sync in progress...\n");
	WBUFW(buf,0) = 0x2735;
	charif_sendallwos(-1, buf, 2);
	return 0;
}

//-----------------------------------------------------
// Read GM accounts
//-----------------------------------------------------
void read_gm_account(void)
{
	if(!login_config.login_gm_read)
		return;
	sprintf(tmpsql, "SELECT `%s`,`%s` FROM `%s` WHERE `%s`> '0'",login_db_account_id,login_db_level,login_db,login_db_level);
	if (mysql_query(&mysql_handle, tmpsql)) {
		ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
		ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
		return; //Failed to read GM list!
	}

	if (gm_account_db != NULL)
	{
		aFree(gm_account_db);
		gm_account_db = NULL;
	}
	GM_num = 0;

	sql_res = mysql_store_result(&mysql_handle);
	if (sql_res) {
		gm_account_db = (struct gm_account*)aCalloc((size_t)mysql_num_rows(sql_res), sizeof(struct gm_account));
		while ((sql_row = mysql_fetch_row(sql_res))) {
			gm_account_db[GM_num].account_id = atoi(sql_row[0]);
			gm_account_db[GM_num].level = atoi(sql_row[1]);
			GM_num++;
		}
		mysql_free_result(sql_res);
	}
}

//-----------------------------------------------------
// Send GM accounts to all char-server
//-----------------------------------------------------
void send_GM_accounts(int fd)
{
	unsigned int i;
	unsigned char buf[32767];
	int len;

	if(!login_config.login_gm_read)
		return;

	len = 4;
	WBUFW(buf,0) = 0x2732;
	for(i = 0; i < GM_num; i++)
		// send only existing accounts. We can not create a GM account when server is online.
		if (gm_account_db[i].level > 0) {
			WBUFL(buf,len) = gm_account_db[i].account_id;
			WBUFB(buf,len+4) = (unsigned char)gm_account_db[i].level;
			len += 5;
			if (len >= 32000) {
				ShowWarning("send_GM_accounts: Too many accounts! Only %d out of %d were sent.\n", i, GM_num);
				break;
			}
		}

	WBUFW(buf,2) = len;
	if (fd == -1)
		charif_sendallwos(-1, buf, len);
	else
	{
		WFIFOHEAD(fd,len);
		memcpy(WFIFOP(fd,0), buf, len);
		WFIFOSET(fd,len);
	}
	return;
}

/*=============================================
 * Does a mysql_ping to all connection handles
 *---------------------------------------------*/
int login_sql_ping(int tid, unsigned int tick, int id, int data) 
{
	ShowInfo("Pinging SQL server to keep connection alive...\n");
	mysql_ping(&mysql_handle);
	return 0;
}

int sql_ping_init(void)
{
	int connection_timeout, connection_ping_interval;

	// set a default value first
	connection_timeout = 28800; // 8 hours

	// ask the mysql server for the timeout value
	if (!mysql_query(&mysql_handle, "SHOW VARIABLES LIKE 'wait_timeout'")
	&& (sql_res = mysql_store_result(&mysql_handle)) != NULL) {
		sql_row = mysql_fetch_row(sql_res);
		if (sql_row)
			connection_timeout = atoi(sql_row[1]);
		if (connection_timeout < 60)
			connection_timeout = 60;
		mysql_free_result(sql_res);
	}

	// establish keepalive
	connection_ping_interval = connection_timeout - 30; // 30-second reserve
	add_timer_func_list(login_sql_ping, "login_sql_ping");
	add_timer_interval(gettick() + connection_ping_interval*1000, login_sql_ping, 0, 0, connection_ping_interval*1000);

	return 0;
}

//-----------------------------------------------------
// Read Account database - mysql db
//-----------------------------------------------------
int mmo_auth_sqldb_init(void)
{
	ShowStatus("Login server init....\n");

	mysql_init(&mysql_handle);

	// DB connection start
	ShowStatus("Connect Login Database Server....\n");
	if (!mysql_real_connect(&mysql_handle, login_server_ip, login_server_id, login_server_pw, login_server_db, login_server_port, (char *)NULL, 0)) {
		ShowFatalError("%s\n", mysql_error(&mysql_handle));
		exit(1);
	} else {
		ShowStatus("Connect success!\n");
	}
	if( strlen(default_codepage) > 0 ) {
		sprintf( tmpsql, "SET NAMES %s", default_codepage );
		if (mysql_query(&mysql_handle, tmpsql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
		}
	}

	if (login_config.log_login)
	{
		sprintf(tmpsql, "INSERT DELAYED INTO `%s`(`time`,`ip`,`user`,`rcode`,`log`) VALUES (NOW(), '0', 'lserver','100','login server started')", loginlog_db);

		//query
		if (mysql_query(&mysql_handle, tmpsql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
		}
	}

	sql_ping_init();

	return 0;
}


//-----------------------------------------------------
// close DB
//-----------------------------------------------------
void mmo_db_close(void)
{
	int i, fd;

	//set log.
	if (login_config.log_login)
	{
		sprintf(tmpsql,"INSERT DELAYED INTO `%s`(`time`,`ip`,`user`,`rcode`,`log`) VALUES (NOW(), '0', 'lserver','100', 'login server shutdown')", loginlog_db);

		//query
		if (mysql_query(&mysql_handle, tmpsql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
		}
	}

	for (i = 0; i < MAX_SERVERS; i++) {
		if ((fd = server_fd[i]) >= 0)
		{	//Clean only data related to servers we are connected to. [Skotlex]
			sprintf(tmpsql,"DELETE FROM `sstatus` WHERE `index` = '%d'", i);
			if (mysql_query(&mysql_handle, tmpsql))
			{
				ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
				ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
			}
			do_close(fd);
		}
	}
	mysql_close(&mysql_handle);
	ShowStatus("close DB connect....\n");
	if (login_fd > 0)
		do_close(login_fd);
}

//-----------------------------------------------------
// Make new account
//-----------------------------------------------------
int mmo_auth_new(struct mmo_account* account, char sex)
{
	unsigned int tick = gettick();
	char user_password[256];
	//Account Registration Flood Protection by [Kevin]
	if(DIFF_TICK(tick, new_reg_tick) < 0 && num_regs >= allowed_regs) {
		ShowNotice("Account registration denied (registration limit exceeded)\n");
		return 3;
	}

	//Check for preexisting account
	sprintf(tmpsql, "SELECT `%s` FROM `%s` WHERE `userid` = '%s'", login_db_userid, login_db, account->userid);
	if(mysql_query(&mysql_handle, tmpsql)){
		ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
		ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
		return 1; //Return Incorrect user/pass?
	}

	sql_res = mysql_store_result(&mysql_handle);
	if(mysql_num_rows(sql_res) > 0){
		mysql_free_result(sql_res);
		return 1; //Already exists, return incorrect user/pass.
	}
	mysql_free_result(sql_res); //Only needed for the already-exists check...

	mysql_real_escape_string(&mysql_handle, account->userid, account->userid, strlen(account->userid));
	mysql_real_escape_string(&mysql_handle, account->passwd, account->passwd, strlen(account->passwd));

	if (sex == 'f') sex = 'F';
	else if (sex == 'm') sex = 'M';
	if (login_config.use_md5_passwds)
		MD5_String(account->passwd,user_password);
	else
		jstrescapecpy(user_password, account->passwd);

	ShowInfo("New account: user: %s with passwd: %s sex: %c\n", account->userid, user_password, sex);

	sprintf(tmpsql, "INSERT INTO `%s` (`%s`, `%s`, `sex`, `email`) VALUES ('%s', '%s', '%c', '%s')", login_db, login_db_userid, login_db_user_pass, account->userid, user_password, sex, "a@a.com");

	if(mysql_query(&mysql_handle, tmpsql)){
		//Failed to insert new acc :/
		ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
		ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
		return 1;
	}

	if(mysql_field_count(&mysql_handle) == 0 &&
		mysql_insert_id(&mysql_handle) < START_ACCOUNT_NUM) {
		//Invalid Account ID! Must update it.
		int id = (int)mysql_insert_id(&mysql_handle);
		sprintf(tmpsql, "UPDATE `%s` SET `%s`='%d' WHERE `%s`='%d'", login_db, login_db_account_id, START_ACCOUNT_NUM, login_db_account_id, id);
		if(mysql_query(&mysql_handle, tmpsql)){
			ShowError("New account %s has an invalid account ID [%d] which could not be updated (account_id must be %d or higher).", account->userid, id, START_ACCOUNT_NUM);
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
			//Just delete it and fail.
			sprintf(tmpsql, "DELETE FROM `%s` WHERE `%s`='%d'", login_db, login_db_account_id, id);
			if(mysql_query(&mysql_handle, tmpsql)){
				ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
				ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
			}
			return 1;
		}
		ShowNotice("Updated New account %s's ID %d->%d (account_id must be %d or higher).", account->userid, id, START_ACCOUNT_NUM, START_ACCOUNT_NUM);
	}
	if(DIFF_TICK(tick, new_reg_tick) > 0)
	{	//Update the registration check.
		num_regs=0;
		new_reg_tick=tick+time_allowed*1000;
	}
	num_regs++;

	return 0;
}

//--------------------------------------------------------------------
// Packet send to all char-servers, except one (wos: without our self)
//--------------------------------------------------------------------
int charif_sendallwos(int sfd, unsigned char *buf, unsigned int len)
{
	int i, c, fd;

	for(i = 0, c = 0; i < MAX_SERVERS; i++) {
		if ((fd = server_fd[i]) > 0 && fd != sfd) {
			WFIFOHEAD(fd,len);
			if (WFIFOSPACE(fd) < len) //Increase buffer size.
				realloc_writefifo(fd, len);
			memcpy(WFIFOP(fd,0), buf, len);
			WFIFOSET(fd,len);
			c++;
		}
	}

	return c;
}

//-----------------------------------------------------
// Auth
//-----------------------------------------------------
int mmo_auth(struct mmo_account* account, int fd)
{
	time_t ban_until_time;
	char t_uid[256];
	char user_password[256], password[256];
	long connect_until;
	int encpasswdok = 0, state;

	char md5str[64], md5bin[32];

	char ip[16];
	uint32 ipl = session[fd]->client_addr;
	uint8* sin_addr = (uint8*)&ipl;
	sprintf(ip, "%d.%d.%d.%d", sin_addr[3], sin_addr[2], sin_addr[1], sin_addr[0]);

	// DNS Blacklist check
	if(login_config.use_dnsbl)
	{
		char r_ip[16];
		char ip_dnsbl[256];
		char *dnsbl_serv;
		bool matched = false;

		sprintf(r_ip, "%d.%d.%d.%d", sin_addr[0], sin_addr[1], sin_addr[2], sin_addr[3]);

		for (dnsbl_serv = strtok(login_config.dnsbl_servs,","); dnsbl_serv != NULL; dnsbl_serv = strtok(NULL,","))
		{
			if (!matched) {
				sprintf(ip_dnsbl, "%s.%s", r_ip, dnsbl_serv);
				if(gethostbyname(ip_dnsbl))
					matched = true;
			}
		}

		if (matched) {
			ShowInfo("DNSBL: (%s) Blacklisted. User Kicked.\n", r_ip);
			return 3;
		}
	}

	// Account creation with _M/_F
	if (login_config.new_account_flag) 
	{
		int len = strlen(account->userid) - 2;
		if (account->passwdenc == 0 && account->userid[len] == '_' &&
		   (account->userid[len+1] == 'F' || account->userid[len+1] == 'M' ||
			account->userid[len+1] == 'f' || account->userid[len+1] == 'm') &&
			len >= 4 && strlen(account->passwd) >= 4)
		{
			int result;
			account->userid[len] = '\0'; //Terminating the name.
			if ((result = mmo_auth_new(account, account->userid[len+1])))
				return result; //Failed to make account. [Skotlex].
		}
	}

	jstrescapecpy(t_uid,account->userid);

	// retrieve login entry for the specified username
	sprintf(tmpsql, "SELECT `%s`,`%s`,`lastlogin`,`sex`,`connect_until`,`ban_until`,`state`,`%s`"
		" FROM `%s` WHERE `%s`= %s '%s'", login_db_account_id, login_db_user_pass, login_db_level, login_db, login_db_userid, login_config.case_sensitive ? "BINARY" : "", t_uid);
	//login {0-account_id/1-user_pass/2-lastlogin/3-sex/4-connect_untl/5-ban_until/6-state/7-level}

	// query
	if (mysql_query(&mysql_handle, tmpsql)) {
		ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
		ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
	}
	sql_res = mysql_store_result(&mysql_handle) ;
	if (!sql_res) {
		ShowError("mmo_auth DB result error ! \n");
		return 0;
	}
	sql_row = mysql_fetch_row(sql_res);
	if (!sql_row) {
		//there's no id.
		ShowNotice("auth failed: no such account %s\n", account->userid);
		mysql_free_result(sql_res);
		return 0;
	}

	account->account_id = atoi(sql_row[0]);
	strncpy(password, sql_row[1], sizeof(password)-1);
	strncpy(account->lastlogin, sql_row[2], 24);
	account->sex = sql_row[3][0] == 'S' ? 2 : sql_row[3][0]=='M' ? 1 : 0;
	connect_until = atol(sql_row[4]);
	ban_until_time = atol(sql_row[5]);
	state = atoi(sql_row[6]);
	account->level = atoi(sql_row[7]);
	if (account->level > 99) account->level = 99;
	
	//This function has too many leaks because this is only free'd on the end.
	//Better avoid that and free it as soon as possible. [Skotlex]
	mysql_free_result(sql_res);

	//Client Version check
	if(login_config.check_client_version && account->version != 0 &&
		account->version != login_config.client_version_to_connect)
		return 5;

	switch (state) {
	case -3: //id is banned
	case -2: //dynamic ban
		return state;
	}

	if (login_config.use_md5_passwds)
		MD5_String(account->passwd,user_password);
	else
		jstrescapecpy(user_password, account->passwd);

#ifdef PASSWORDENC
	if (account->passwdenc > 0) {
		int j = account->passwdenc;

		if (j > 2)
			j = 1;
		do {
			if (j == 1) {
				sprintf(md5str, "%s%s", md5key, password);
			} else if (j == 2) {
				sprintf(md5str, "%s%s", password, md5key);
			} else
				md5str[0] = 0;
			MD5_String2binary(md5str, md5bin);
			encpasswdok = (memcmp(user_password, md5bin, 16) == 0);
		} while (j < 2 && !encpasswdok && (j++) != account->passwdenc);
	}
#endif
	if ((strcmp(user_password, password) && !encpasswdok)) {
		if (account->passwdenc == 0) {
			ShowInfo("auth failed pass error %s %s" RETCODE, account->userid, user_password);
#ifdef PASSWORDENC
		} else {
			char logbuf[1024], *p = logbuf;
			int j;
			p += sprintf(p, "auth failed pass error %s recv-md5[", account->userid);
			for(j = 0; j < 16; j++)
				p += sprintf(p, "%02x", ((unsigned char *)user_password)[j]);
			p += sprintf(p, "] calc-md5[");
			for(j = 0; j < 16; j++)
				p += sprintf(p, "%02x", ((unsigned char *)md5bin)[j]);
			p += sprintf(p, "] md5key[");
			for(j = 0; j < md5keylen; j++)
				p += sprintf(p, "%02x", ((unsigned char *)md5key)[j]);
			p += sprintf(p, "]" RETCODE);
			ShowInfo("%s\n", p);
#endif
		}
		return 1;
	}

	if (ban_until_time != 0) { // if account is banned
		if (ban_until_time > time(NULL)) // always banned
			return 6; // 6 = Your are Prohibited to log in until %s

		sprintf(tmpsql, "UPDATE `%s` SET `ban_until`='0' %s WHERE `%s`= '%d'",
			login_db, state==7?",state='0'":"",
			login_db_account_id, account->account_id);
		if (mysql_query(&mysql_handle, tmpsql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
		}
	}

	if (state)
	switch(state) { // packet 0x006a value + 1
	case 1: // 0 = Unregistered ID
	case 2: // 1 = Incorrect Password
	case 3: // 2 = This ID is expired
	case 4: // 3 = Rejected from Server
	case 5: // 4 = You have been blocked by the GM Team
	case 6: // 5 = Your Game's EXE file is not the latest version
	case 7: // 6 = Your are Prohibited to log in until %s
	case 8: // 7 = Server is jammed due to over populated
	case 9: // 8 = No more accounts may be connected from this company
	case 10: // 9 = MSI_REFUSE_BAN_BY_DBA
	case 11: // 10 = MSI_REFUSE_EMAIL_NOT_CONFIRMED
	case 12: // 11 = MSI_REFUSE_BAN_BY_GM
	case 13: // 12 = MSI_REFUSE_TEMP_BAN_FOR_DBWORK
	case 14: // 13 = MSI_REFUSE_SELF_LOCK
	case 15: // 14 = MSI_REFUSE_NOT_PERMITTED_GROUP
	case 16: // 15 = MSI_REFUSE_NOT_PERMITTED_GROUP
	case 100: // 99 = This ID has been totally erased
	case 101: // 100 = Login information remains at %s.
	case 102: // 101 = Account has been locked for a hacking investigation. Please contact the GM Team for more information
	case 103: // 102 = This account has been temporarily prohibited from login due to a bug-related investigation
	case 104: // 103 = This character is being deleted. Login is temporarily unavailable for the time being
	case 105: // 104 = Your spouse character is being deleted. Login is temporarily unavailable for the time being
		ShowInfo("Auth Error #%d\n", state);
		return state - 1;
	default:
		return 99; // 99 = ID has been totally erased
	}

	if (connect_until != 0 && connect_until < time(NULL))
		return 2; // 2 = This ID is expired

	if (login_config.online_check) {
		struct online_login_data* data = idb_get(online_db,account->account_id);
		if (data && data->char_server > -1) {
			//Request char servers to kick this account out. [Skotlex]
			unsigned char buf[8];
			ShowNotice("User [%s] is already online - Rejected.\n",account->userid);
			WBUFW(buf,0) = 0x2734;
			WBUFL(buf,2) = account->account_id;
			charif_sendallwos(-1, buf, 6);
			if (data->waiting_disconnect == -1)
				data->waiting_disconnect = add_timer(gettick()+30000, waiting_disconnect_timer, account->account_id, 0);
			return 3; // Rejected
		}
	}

	account->login_id1 = rand();
	account->login_id2 = rand();

	if (account->sex != 2 && account->account_id < START_ACCOUNT_NUM)
		ShowWarning("Account %s has account id %d! Account IDs must be over %d to work properly!\n", account->userid, account->account_id, START_ACCOUNT_NUM);

	sprintf(tmpsql, "UPDATE `%s` SET `lastlogin` = NOW(), `logincount`=`logincount` +1, `last_ip`='%s'  WHERE `%s` = '%d'",
		login_db, ip, login_db_account_id, account->account_id);
	if (mysql_query(&mysql_handle, tmpsql)) {
		ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
		ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
	}
	return -1;
}

static int online_db_setoffline(DBKey key, void* data, va_list ap)
{
	struct online_login_data *p = (struct online_login_data *)data;
	int server = va_arg(ap, int);
	if (server == -1) {
		p->char_server = -1;
		if (p->waiting_disconnect != -1)
		{
			delete_timer(p->waiting_disconnect, waiting_disconnect_timer);
			p->waiting_disconnect = -1;
		}
	} else if (p->char_server == server)
		p->char_server = -2; //Char server disconnected.
	return 0;
}

//--------------------------------
// Packet parsing for char-servers
//--------------------------------
int parse_fromchar(int fd)
{
	int i, id;

	uint32 ipl = session[fd]->client_addr;
	char ip[16];
	RFIFOHEAD(fd);

	ip2str(ipl, ip);

	for(id = 0; id < MAX_SERVERS; id++)
		if (server_fd[id] == fd)
			break;

	if (id == MAX_SERVERS)
		session[fd]->eof = 1;
	if(session[fd]->eof) {
		if (id < MAX_SERVERS) {
			ShowStatus("Char-server '%s' has disconnected.\n", server[id].name);
			server_fd[id] = -1;
			memset(&server[id], 0, sizeof(struct mmo_char_server));
			online_db->foreach(online_db,online_db_setoffline,id); //Set all chars from this char server to offline.
			// server delete
			sprintf(tmpsql, "DELETE FROM `sstatus` WHERE `index`='%d'", id);
			// query
			if (mysql_query(&mysql_handle, tmpsql)) {
				ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
				ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
			}
		}
		do_close(fd);
		return 0;
	}

	while (RFIFOREST(fd) >= 2) {

		switch (RFIFOW(fd,0)) {

		case 0x2709: // request from map-server via char-server to reload GM accounts
			if (login_config.log_login)
			{
				sprintf(tmpsql,"INSERT DELAYED INTO `%s`(`time`,`ip`,`user`,`log`) VALUES (NOW(), '%u', '%s', 'GM reload request')", loginlog_db, ipl, server[id].name);
				if (mysql_query(&mysql_handle, tmpsql)) {
					ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
					ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
				}
			}
			read_gm_account();
			// send GM accounts to all char-servers
			send_GM_accounts(-1);
			RFIFOSKIP(fd,2);
			break;

		case 0x2712: // request from char-server to authenticate an account
			if (RFIFOREST(fd) < 19)
				return 0;
		{
			int account_id;
			WFIFOHEAD(fd,51);
			account_id = RFIFOL(fd,2); // speed up
			for(i = 0; i < AUTH_FIFO_SIZE; i++) {
				if(auth_fifo[i].account_id == account_id &&
					auth_fifo[i].login_id1 == RFIFOL(fd,6) &&
					auth_fifo[i].login_id2 == RFIFOL(fd,10) && // relate to the versions higher than 18
					auth_fifo[i].sex == RFIFOB(fd,14) &&
					auth_fifo[i].ip == ntohl(RFIFOL(fd,15)) &&
					!auth_fifo[i].delflag)
				{
					auth_fifo[i].delflag = 1;
					break;
				}
			}

			if (i != AUTH_FIFO_SIZE && account_id > 0) { // send ack 
				time_t connect_until_time = 0;
				char email[40] = "";
				account_id=RFIFOL(fd,2);
				sprintf(tmpsql, "SELECT `email`,`connect_until` FROM `%s` WHERE `%s`='%d'", login_db, login_db_account_id, account_id);
				if (mysql_query(&mysql_handle, tmpsql)) {
					ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
					ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
				}
				sql_res = mysql_store_result(&mysql_handle) ;
				if (sql_res) {
					sql_row = mysql_fetch_row(sql_res);
					connect_until_time = atol(sql_row[1]);
					strcpy(email, sql_row[0]);
					mysql_free_result(sql_res);
				}
				WFIFOW(fd,0) = 0x2713;
				WFIFOL(fd,2) = account_id;
				WFIFOB(fd,6) = 0;
				memcpy(WFIFOP(fd, 7), email, 40);
				WFIFOL(fd,47) = (unsigned long) connect_until_time;
				WFIFOSET(fd,51);
			} else {
				WFIFOW(fd,0) = 0x2713;
				WFIFOL(fd,2) = account_id;
				WFIFOB(fd,6) = 1;
				WFIFOSET(fd,51);
			}
		}
			RFIFOSKIP(fd,19);
			break;
		

		case 0x2714:
			if (RFIFOREST(fd) < 6)
				return 0;
			// how many users on world? (update)
			if (server[id].users != RFIFOL(fd,2))
			{
				ShowStatus("set users %s : %d\n", server[id].name, RFIFOL(fd,2));

				server[id].users = RFIFOL(fd,2);
				sprintf(tmpsql,"UPDATE `sstatus` SET `user` = '%d' WHERE `index` = '%d'", server[id].users, id);
				// query
				if (mysql_query(&mysql_handle, tmpsql)) {
					ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
					ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
				}
			}
		{	// send some answer
			WFIFOHEAD(fd,6);
			WFIFOW(fd,0) = 0x2718;
			WFIFOSET(fd,2);
		}
			RFIFOSKIP(fd,6);
			break;

		case 0x2716: // received an e-mail/limited time request, because a player comes back from a map-server to the char-server
			if (RFIFOREST(fd) < 6)
				return 0;
		{
			int account_id;
			time_t connect_until_time = 0;
			char email[40] = "";
			WFIFOHEAD(fd,50);
			account_id=RFIFOL(fd,2);
			sprintf(tmpsql,"SELECT `email`,`connect_until` FROM `%s` WHERE `%s`='%d'",login_db, login_db_account_id, account_id);
			if(mysql_query(&mysql_handle, tmpsql)) {
				ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
				ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
			}
			sql_res = mysql_store_result(&mysql_handle) ;
			if (sql_res) {
				sql_row = mysql_fetch_row(sql_res);
				connect_until_time = atol(sql_row[1]);
				strcpy(email, sql_row[0]);
			}
			mysql_free_result(sql_res);
			//printf("parse_fromchar: E-mail/limited time request from '%s' server (concerned account: %d)\n", server[id].name, RFIFOL(fd,2));
			WFIFOW(fd,0) = 0x2717;
			WFIFOL(fd,2) = RFIFOL(fd,2);
			memcpy(WFIFOP(fd, 6), email, 40);
			WFIFOL(fd,46) = (unsigned long) connect_until_time;
			WFIFOSET(fd,50);
		}
			RFIFOSKIP(fd,6);
			break;

		case 0x2720: // Request to become a GM (TXT only!)
			if (RFIFOREST(fd) < 4 || RFIFOREST(fd) < RFIFOW(fd,2))
				return 0;
			//oldacc = RFIFOL(fd,4);
			ShowWarning("change GM isn't supported in this login server version.\n");
			ShowError("change GM error 0 %s\n", RFIFOP(fd, 8));

			RFIFOSKIP(fd, RFIFOW(fd, 2));
		{
			WFIFOHEAD(fd,10);
			WFIFOW(fd,0) = 0x2721;
			WFIFOL(fd,2) = RFIFOL(fd,4); // oldacc;
			WFIFOL(fd,6) = 0; // newacc;
			WFIFOSET(fd,10);
		}
			return 0;

		// Map server send information to change an email of an account via char-server
		case 0x2722:	// 0x2722 <account_id>.L <actual_e-mail>.40B <new_e-mail>.40B
			if (RFIFOREST(fd) < 86)
				return 0;
		{
			int acc;
			char actual_email[40], new_email[40];
			acc = RFIFOL(fd,2);
			memcpy(actual_email, RFIFOP(fd,6), 40);
			memcpy(new_email, RFIFOP(fd,46), 40);
			if (e_mail_check(actual_email) == 0)
				ShowWarning("Char-server '%s': Attempt to modify an e-mail on an account (@email GM command), but actual email is invalid (account: %d, ip: %s)" RETCODE,
				server[id].name, acc, ip);
			else if (e_mail_check(new_email) == 0)
				ShowWarning("Char-server '%s': Attempt to modify an e-mail on an account (@email GM command) with a invalid new e-mail (account: %d, ip: %s)" RETCODE,
				server[id].name, acc, ip);
			else if (strcmpi(new_email, "a@a.com") == 0)
				ShowWarning("Char-server '%s': Attempt to modify an e-mail on an account (@email GM command) with a default e-mail (account: %d, ip: %s)" RETCODE,
				server[id].name, acc, ip);
			else {
				sprintf(tmpsql, "SELECT `%s`,`email` FROM `%s` WHERE `%s` = '%d'", login_db_userid, login_db, login_db_account_id, acc);
				if (mysql_query(&mysql_handle, tmpsql))
				{
					ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
					ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
				}
				sql_res = mysql_store_result(&mysql_handle);
				if (sql_res) {
					sql_row = mysql_fetch_row(sql_res);	//row fetching

					if (strcmpi(sql_row[1], actual_email) == 0) {
						sprintf(tmpsql, "UPDATE `%s` SET `email` = '%s' WHERE `%s` = '%d'", login_db, new_email, login_db_account_id, acc);
						// query
						if (mysql_query(&mysql_handle, tmpsql)) {
							ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
							ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
						}
						ShowInfo("Char-server '%s': Modify an e-mail on an account (@email GM command) (account: %d (%s), new e-mail: %s, ip: %s)." RETCODE,
							server[id].name, acc, sql_row[0], actual_email, ip);
					}
				}

			}
			RFIFOSKIP(fd, 86);
			break;
		}

		case 0x2724: // Receiving of map-server via char-server a status change resquest
			if (RFIFOREST(fd) < 10)
				return 0;
		{
			int acc, statut;
			acc = RFIFOL(fd,2);
			statut = RFIFOL(fd,6);
			sprintf(tmpsql, "SELECT `state` FROM `%s` WHERE `%s` = '%d'", login_db, login_db_account_id, acc);
			if (mysql_query(&mysql_handle, tmpsql)) {
				ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
				ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
			}
			sql_res = mysql_store_result(&mysql_handle);
			if (sql_res) {
				sql_row = mysql_fetch_row(sql_res); // row fetching
			}
			if (atoi(sql_row[0]) != statut && statut != 0) {
				unsigned char buf[16];
				WBUFW(buf,0) = 0x2731;
				WBUFL(buf,2) = acc;
				WBUFB(buf,6) = 0; // 0: change of statut, 1: ban
				WBUFL(buf,7) = statut; // status or final date of a banishment
				charif_sendallwos(-1, buf, 11);
			}
			sprintf(tmpsql,"UPDATE `%s` SET `state` = '%d' WHERE `%s` = '%d'", login_db, statut,login_db_account_id,acc);
			//query
			if(mysql_query(&mysql_handle, tmpsql)) {
				ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
				ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
			}
			RFIFOSKIP(fd,10);
			break;
		}

		case 0x2725: // Receiving of map-server via char-server a ban resquest
			if (RFIFOREST(fd) < 18)
				return 0;
		{
			int acc;
			struct tm *tmtime;
			time_t timestamp, tmptime;
			acc = RFIFOL(fd,2);
			sprintf(tmpsql, "SELECT `ban_until` FROM `%s` WHERE `%s` = '%d'",login_db,login_db_account_id,acc);
			if (mysql_query(&mysql_handle, tmpsql)) {
				ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
				ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
			}
			sql_res = mysql_store_result(&mysql_handle);
			if (sql_res) {
				sql_row = mysql_fetch_row(sql_res); // row fetching
			}
			tmptime = atol(sql_row[0]);
			if (tmptime == 0 || tmptime < time(NULL))
				timestamp = time(NULL);
			else
				timestamp = tmptime;
			tmtime = localtime(&timestamp);
			tmtime->tm_year = tmtime->tm_year + (short)RFIFOW(fd,6);
			tmtime->tm_mon = tmtime->tm_mon + (short)RFIFOW(fd,8);
			tmtime->tm_mday = tmtime->tm_mday + (short)RFIFOW(fd,10);
			tmtime->tm_hour = tmtime->tm_hour + (short)RFIFOW(fd,12);
			tmtime->tm_min = tmtime->tm_min + (short)RFIFOW(fd,14);
			tmtime->tm_sec = tmtime->tm_sec + (short)RFIFOW(fd,16);
			timestamp = mktime(tmtime);
			if (timestamp != -1) {
				if (timestamp <= time(NULL))
					timestamp = 0;
				if (tmptime != timestamp) {
					if (timestamp != 0) {
						unsigned char buf[16];
						WBUFW(buf,0) = 0x2731;
						WBUFL(buf,2) = acc;
						WBUFB(buf,6) = 1; // 0: change of statut, 1: ban
						WBUFL(buf,7) = (unsigned int)timestamp; // status or final date of a banishment
						charif_sendallwos(-1, buf, 11);
					}
					ShowNotice("Account: %d Banned until: %ld\n", acc, timestamp);
					sprintf(tmpsql, "UPDATE `%s` SET `ban_until` = '%ld' WHERE `%s` = '%d'", login_db, (unsigned long)timestamp, login_db_account_id, acc);
					// query
					if (mysql_query(&mysql_handle, tmpsql)) {
						ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
						ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
					}
				}
			}
			RFIFOSKIP(fd,18);
			break;
		}

		case 0x2727: // Change of sex (sex is reversed)
			if (RFIFOREST(fd) < 6)
				return 0;
		{
			int acc,sex;
			unsigned char buf[16];
			acc=RFIFOL(fd,2);
			sprintf(tmpsql,"SELECT `sex` FROM `%s` WHERE `%s` = '%d'",login_db,login_db_account_id,acc);

			if(mysql_query(&mysql_handle, tmpsql)) {
				ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
				ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
				return 0;
			}

			sql_res = mysql_store_result(&mysql_handle) ;

			if (sql_res)	{
				if (mysql_num_rows(sql_res) == 0) {
					mysql_free_result(sql_res);
					return 0;
				}
				sql_row = mysql_fetch_row(sql_res);	//row fetching
			}

			if (strcmpi(sql_row[0], "M") == 0)
				sex = 0; //Change to female
			else
				sex = 1; //Change to make
			sprintf(tmpsql,"UPDATE `%s` SET `sex` = '%c' WHERE `%s` = '%d'", login_db, (sex?'M':'F'), login_db_account_id, acc);
			//query
			if(mysql_query(&mysql_handle, tmpsql)) {
				ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
				ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
			}
			WBUFW(buf,0) = 0x2723;
			WBUFL(buf,2) = acc;
			WBUFB(buf,6) = sex;
			charif_sendallwos(-1, buf, 7);
			RFIFOSKIP(fd,6);
			break;
		}

		case 0x2728:	// save account_reg2
			if (RFIFOREST(fd) < 4 || RFIFOREST(fd) < RFIFOW(fd,2))
				return 0;
			if (RFIFOL(fd,4) > 0) {
				int acc,p,j,len;
				char str[32];
				char temp_str[64]; //Needs twice as much space as the original string.
				char temp_str2[512];
				char value[256];
				unsigned char *buf;
				acc=RFIFOL(fd,4);
				buf = (unsigned char*)aCalloc(RFIFOW(fd,2)+1, sizeof(unsigned char));
				//Delete all global account variables....
				sprintf(tmpsql,"DELETE FROM `%s` WHERE `type`='1' AND `account_id`='%d';",reg_db,acc);
				if(mysql_query(&mysql_handle, tmpsql)) {
					ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
					ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
				}
				//Proceed to insert them....
				for(j=0,p=13;j<ACCOUNT_REG2_NUM && p<RFIFOW(fd,2);j++){
					sscanf(RFIFOP(fd,p), "%31c%n",str,&len);
					str[len]='\0';
					p +=len+1; //+1 to skip the '\0' between strings.
					sscanf(RFIFOP(fd,p), "%255c%n",value,&len);
					value[len]='\0';
					p +=len+1;

					sprintf(tmpsql,"INSERT INTO `%s` (`type`, `account_id`, `str`, `value`) VALUES ( 1 , '%d' , '%s' , '%s');",  reg_db, acc, jstrescapecpy(temp_str,str), jstrescapecpy(temp_str2,value));
					if(mysql_query(&mysql_handle, tmpsql)) {
						ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
						ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
					}
				}

				// Send to char
				memcpy(WBUFP(buf,0),RFIFOP(fd,0),RFIFOW(fd,2));
				WBUFW(buf,0)=0x2729;
				charif_sendallwos(fd,buf,WBUFW(buf,2));
				if (buf) aFree(buf);
			}
			RFIFOSKIP(fd,RFIFOW(fd,2));
			break;

		case 0x272a:	// Receiving of map-server via char-server a unban resquest
			if (RFIFOREST(fd) < 6)
				return 0;
			{
				int acc;
				acc = RFIFOL(fd,2);
				sprintf(tmpsql,"SELECT `ban_until` FROM `%s` WHERE `%s` = '%d'",login_db,login_db_account_id,acc);
				if(mysql_query(&mysql_handle, tmpsql)) {
					ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
					ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
				}
				sql_res = mysql_store_result(&mysql_handle) ;
				if (sql_res && mysql_num_rows(sql_res) > 0) { //Found a match
					sprintf(tmpsql,"UPDATE `%s` SET `ban_until` = '0' WHERE `%s` = '%d'", login_db,login_db_account_id,acc);
					//query
					if(mysql_query(&mysql_handle, tmpsql)) {
						ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
						ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
					}
				}
				if (sql_res) mysql_free_result(sql_res);
				RFIFOSKIP(fd,6);
			}
			return 0;

		case 0x272b:    // Set account_id to online [Wizputer]
			if (RFIFOREST(fd) < 6)
				return 0;
			add_online_user(id, RFIFOL(fd,2));
			RFIFOSKIP(fd,6);
			break;

		case 0x272c:   // Set account_id to offline [Wizputer]
			if (RFIFOREST(fd) < 6)
				return 0;
			remove_online_user(RFIFOL(fd,2));
			RFIFOSKIP(fd,6);
			break;

		case 0x272d:	// Receive list of all online accounts. [Skotlex]
			if (RFIFOREST(fd) < 4 || RFIFOREST(fd) < RFIFOW(fd,2))
				return 0;
			if (login_config.online_check) {
				struct online_login_data *p;
				int aid, users;
				online_db->foreach(online_db,online_db_setoffline,id); //Set all chars from this char-server offline first
				users = RFIFOW(fd,4);
				for (i = 0; i < users; i++) {
					aid = RFIFOL(fd,6+i*4);
					p = idb_ensure(online_db, aid, create_online_user);
					p->char_server = id;
					if (p->waiting_disconnect != -1)
					{
						delete_timer(p->waiting_disconnect, waiting_disconnect_timer);
						p->waiting_disconnect = -1;
					}
				}
			}
			RFIFOSKIP(fd,RFIFOW(fd,2));
			break;
		case 0x272e: //Request account_reg2 for a character.
			if (RFIFOREST(fd) < 10)
				return 0;
			{
				int account_id = RFIFOL(fd, 2);
				int char_id = RFIFOL(fd, 6);
				int p;
				WFIFOHEAD(fd,10000);
				RFIFOSKIP(fd,10);
				sprintf(tmpsql, "SELECT `str`,`value` FROM `%s` WHERE `type`='1' AND `account_id`='%d'",reg_db, account_id);
				if (mysql_query(&mysql_handle, tmpsql)) {
					ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
					ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
					break;
				}
				sql_res = mysql_store_result(&mysql_handle) ;
				if (!sql_res) {
					break;
				}
				WFIFOW(fd,0) = 0x2729;
				WFIFOL(fd,4) = account_id;
				WFIFOL(fd,8) = char_id;
				WFIFOB(fd,12) = 1; //Type 1 for Account2 registry
				for(p = 13; (sql_row = mysql_fetch_row(sql_res)) && p < 9000;){
					if (sql_row[0][0]) {
						p+= sprintf(WFIFOP(fd,p), "%s", sql_row[0])+1; //We add 1 to consider the '\0' in place.
						p+= sprintf(WFIFOP(fd,p), "%s", sql_row[1])+1;
					}
				}
				if (p >= 9000)
					ShowWarning("Too many account2 registries for AID %d. Some registries were not sent.\n", account_id);
				WFIFOW(fd,2) = p;
				WFIFOSET(fd,WFIFOW(fd,2));
				mysql_free_result(sql_res);
			}
			break;

		case 0x2736: // WAN IP update from char-server
			if (RFIFOREST(fd) < 6)
				return 0;
			server[id].ip = ntohl(RFIFOL(fd,2));
			ShowInfo("Updated IP of Server #%d to %d.%d.%d.%d.\n",id, CONVIP(server[id].ip));
			RFIFOSKIP(fd,6);
			break;

		case 0x2737: //Request to set all offline.
			ShowInfo("Setting accounts from char-server %d offline.\n", id);
			online_db->foreach(online_db,online_db_setoffline,id);
			RFIFOSKIP(fd,2);
			break;

		default:
			ShowError("parse_fromchar: Unknown packet 0x%x from a char-server! Disconnecting!\n", RFIFOW(fd,0));
			session[fd]->eof = 1;
			return 0;
		}
	}

	RFIFOSKIP(fd,RFIFOREST(fd));
	return 0;
}

//--------------------------------------------
// Test to know if an IP come from LAN or WAN.
//--------------------------------------------
int lan_subnetcheck(uint32 ip)
{
	int i;

	for(i = 0; i < subnet_count; i++) {
		if(subnet[i].subnet == (ip & subnet[i].mask)) {
			return subnet[i].char_ip;
		}
	}

	return 0;
}

int login_ip_ban_check(uint32 ip)
{
	char* p = (char*)&ip;
	sprintf(tmpsql, "SELECT count(*) FROM `ipbanlist` WHERE `list` = '%d.*.*.*' OR `list` = '%d.%d.*.*' OR `list` = '%d.%d.%d.*' OR `list` = '%d.%d.%d.%d'",
		p[3], p[3], p[2], p[3], p[2], p[1], p[3], p[2], p[1], p[0]);
	if (mysql_query(&mysql_handle, tmpsql)) {
		ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
		ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
		// close connection because we can't verify their connectivity.
		return 1;
	}
	sql_res = mysql_store_result(&mysql_handle) ;
	sql_row = sql_res?mysql_fetch_row(sql_res):NULL;

	if(!sql_row) { //Shouldn't happen, but just in case...
		mysql_free_result(sql_res);
		return 1; 
	}

	if (atoi(sql_row[0]) == 0) { //No ban
		mysql_free_result(sql_res);
		return 0;
	}
		
	// ip ban ok.
	ShowInfo("Packet from banned ip : %d.%d.%d.%d\n" RETCODE, CONVIP(ip));

	if (login_config.log_login)
	{
		sprintf(tmpsql,"INSERT DELAYED INTO `%s`(`time`,`ip`,`user`,`rcode`,`log`) VALUES (NOW(), '%u', 'unknown','-3', 'ip banned')", loginlog_db, ip);
		// query
		if(mysql_query(&mysql_handle, tmpsql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
		}
	}
	mysql_free_result(sql_res);
	return 1;
}

//----------------------------------------------------------------------------------------
// Default packet parsing (normal players or administation/char-server connection requests)
//----------------------------------------------------------------------------------------
int parse_login(int fd)
{
	char t_uid[100];
	struct mmo_account account;

	int result, i;
	uint32 ipl = session[fd]->client_addr;
	char ip[16];
	RFIFOHEAD(fd);

	ip2str(ipl, ip);

	memset(&account, 0, sizeof(account));

	if (session[fd]->eof) {
		for(i = 0; i < MAX_SERVERS; i++)
			if (server_fd[i] == fd)
				server_fd[i] = -1;
		do_close(fd);
		return 0;
	}

	while(RFIFOREST(fd) >= 2) {

		switch(RFIFOW(fd,0)) {
		case 0x200:		// New alive packet: structure: 0x200 <account.userid>.24B. used to verify if client is always alive.
			if (RFIFOREST(fd) < 26)
				return 0;
			RFIFOSKIP(fd,26);
			break;

		case 0x204:		// New alive packet: structure: 0x204 <encrypted.account.userid>.16B. (new ragexe from 22 june 2004)
			if (RFIFOREST(fd) < 18)
				return 0;
			RFIFOSKIP(fd,18);
			break;

		case 0x277:		// New login packet
		case 0x64:		// request client login
		case 0x01dd:	// request client login with encrypt
		{
			int packet_len = RFIFOREST(fd);

			//Perform ip-ban check
			if (login_config.ipban && login_ip_ban_check(ipl))
			{
				WFIFOHEAD(fd,23);
				WFIFOW(fd,0) = 0x6a;
				WFIFOB(fd,2) = 3; // 3 = Rejected from Server
				WFIFOSET(fd,23);
				RFIFOSKIP(fd,packet_len);
				session[fd]->eof = 1;
				break;
			}

			switch(RFIFOW(fd,0)){
				case 0x64:
					if(packet_len < 55)
						return 0;
					break;
				case 0x01dd:
					if(packet_len < 47)
						return 0;
					break;
				case 0x277:
					if(packet_len < 84)
						return 0;
					break;
			}

			account.version = RFIFOL(fd, 2);
			if (!account.version) account.version = 1; //Force some version...
			memcpy(account.userid,RFIFOP(fd, 6),NAME_LENGTH);
			account.userid[23] = '\0';
			memcpy(account.passwd,RFIFOP(fd, 30),NAME_LENGTH);
			account.passwd[23] = '\0';

#ifdef PASSWORDENC
			account.passwdenc = (RFIFOW(fd,0)!=0x01dd)?0:PASSWORDENC;
#else
			account.passwdenc = 0;
#endif
			result = mmo_auth(&account, fd);

			jstrescapecpy(t_uid,account.userid);
			if(result == -1) { // auth success
				if (login_config.min_level_to_connect > account.level) {
					WFIFOHEAD(fd,3);
					WFIFOW(fd,0) = 0x81;
					WFIFOB(fd,2) = 1; // 01 = Server closed
					WFIFOSET(fd,3);
				} else {
					WFIFOHEAD(fd,47+32*MAX_SERVERS);
					if (login_config.log_login) {
						sprintf(tmpsql,"INSERT DELAYED INTO `%s`(`time`,`ip`,`user`,`rcode`,`log`) VALUES (NOW(), '%u', '%s','100', 'login ok')", loginlog_db, ipl, t_uid);
						//query
						if(mysql_query(&mysql_handle, tmpsql)) {
							ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
							ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
						}
					}
					if (account.level)
						ShowStatus("Connection of the GM (level:%d) account '%s' accepted.\n", account.level, account.userid);
					else
						ShowStatus("Connection of the account '%s' accepted.\n", account.userid);

					server_num = 0;
					for(i = 0; i < MAX_SERVERS; i++) {
						if (server_fd[i] >= 0) {
							// Advanced subnet check [LuzZza]
							uint32 subnet_char_ip = lan_subnetcheck(ipl);
							WFIFOL(fd,47+server_num*32) = htonl((subnet_char_ip) ? subnet_char_ip : server[i].ip);
							WFIFOW(fd,47+server_num*32+4) = ntows(htons(server[i].port)); // [!] LE byte order here [!]
							memcpy(WFIFOP(fd,47+server_num*32+6), server[i].name, 20);
							WFIFOW(fd,47+server_num*32+26) = server[i].users;
							WFIFOW(fd,47+server_num*32+28) = server[i].maintenance;
							WFIFOW(fd,47+server_num*32+30) = server[i].new_;
							server_num++;
						}
					}
					if (server_num > 0) { // if at least 1 char-server
						WFIFOW(fd,0) = 0x69;
						WFIFOW(fd,2) = 47+32*server_num;
						WFIFOL(fd,4) = account.login_id1;
						WFIFOL(fd,8) = account.account_id;
						WFIFOL(fd,12) = account.login_id2;
						WFIFOL(fd,16) = 0; // in old version, that was for ip (not more used)
						//memcpy(WFIFOP(fd,20), account.lastlogin, 24); // in old version, that was for name (not more used)
						WFIFOB(fd,46) = account.sex;
						WFIFOSET(fd,47+32*server_num);
						if (auth_fifo_pos >= AUTH_FIFO_SIZE)
							auth_fifo_pos = 0;
						auth_fifo[auth_fifo_pos].account_id = account.account_id;
						auth_fifo[auth_fifo_pos].login_id1 = account.login_id1;
						auth_fifo[auth_fifo_pos].login_id2 = account.login_id2;
						auth_fifo[auth_fifo_pos].sex = account.sex;
						auth_fifo[auth_fifo_pos].delflag = 0;
						auth_fifo[auth_fifo_pos].ip = session[fd]->client_addr;
						auth_fifo_pos++;
					} else { // if no char-server, don't send void list of servers, just disconnect the player with proper message
						WFIFOW(fd,0) = 0x81;
						WFIFOB(fd,2) = 1; // 01 = Server closed
						WFIFOSET(fd,3);
					}
				}
			} else { // auth failed
				WFIFOHEAD(fd,23);
				if (login_config.log_login)
				{
					const char* error;
					switch ((result + 1)) {
					case  -2: error = "Account banned."; break; //-3 = Account Banned
					case  -1: error = "dynamic ban (ip and account)."; break; //-2 = Dynamic Ban
					case   1: error = "Unregistered ID."; break; // 0 = Unregistered ID
					case   2: error = "Incorrect Password."; break; // 1 = Incorrect Password
					case   3: error = "Account Expired."; break; // 2 = This ID is expired
					case   4: error = "Rejected from server."; break; // 3 = Rejected from Server
					case   5: error = "Blocked by GM."; break; // 4 = You have been blocked by the GM Team
					case   6: error = "Not latest game EXE."; break; // 5 = Your Game's EXE file is not the latest version
					case   7: error = "Banned."; break; // 6 = Your are Prohibited to log in until %s
					case   8: error = "Server Over-population."; break; // 7 = Server is jammed due to over populated
					case   9: error = "Account limit from company"; break; // 8 = No more accounts may be connected from this company
					case  10: error = "Ban by DBA"; break; // 9 = MSI_REFUSE_BAN_BY_DBA
					case  11: error = "Email not confirmed"; break; // 10 = MSI_REFUSE_EMAIL_NOT_CONFIRMED
					case  12: error = "Ban by GM"; break; // 11 = MSI_REFUSE_BAN_BY_GM
					case  13: error = "Working in DB"; break; // 12 = MSI_REFUSE_TEMP_BAN_FOR_DBWORK
					case  14: error = "Self Lock"; break; // 13 = MSI_REFUSE_SELF_LOCK
					case  15: error = "Not Permitted Group"; break; // 14 = MSI_REFUSE_NOT_PERMITTED_GROUP
					case  16: error = "Not Permitted Group"; break; // 15 = MSI_REFUSE_NOT_PERMITTED_GROUP
					case 100: error = "Account gone."; break; // 99 = This ID has been totally erased
					case 101: error = "Login info remains."; break; // 100 = Login information remains at %s
					case 102: error = "Hacking investigation."; break; // 101 = Account has been locked for a hacking investigation. Please contact the GM Team for more information
					case 103: error = "Bug investigation."; break; // 102 = This account has been temporarily prohibited from login due to a bug-related investigation
					case 104: error = "Deleting char."; break; // 103 = This character is being deleted. Login is temporarily unavailable for the time being
					case 105: error = "Deleting spouse char."; break; // 104 = This character is being deleted. Login is temporarily unavailable for the time being
					default : error = "Unknown Error."; break;
					}

					sprintf(tmpsql, "INSERT DELAYED INTO `%s`(`time`,`ip`,`user`,`rcode`,`log`) VALUES (NOW(), '%u', '%s', '%d','login failed : %s')", loginlog_db, ipl, t_uid, result, error);

					//query
					if(mysql_query(&mysql_handle, tmpsql)) {
						ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
						ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
					}
				}

				if ((result == 1) && login_config.dynamic_pass_failure_ban && login_config.log_login) {	// failed password
					sprintf(tmpsql,"SELECT count(*) FROM `%s` WHERE `ip` = '%u' AND `rcode` = '1' AND `time` > NOW() - INTERVAL %d MINUTE",
						loginlog_db, ipl, login_config.dynamic_pass_failure_ban_interval); //how many times filed account? in one ip.
					if(mysql_query(&mysql_handle, tmpsql)) {
						ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
						ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
					}
					//check query result
					sql_res = mysql_store_result(&mysql_handle) ;
					sql_row = sql_res?mysql_fetch_row(sql_res):NULL;	//row fetching

					if (sql_row && (unsigned int)atoi(sql_row[0]) >= login_config.dynamic_pass_failure_ban_limit ) {
						uint8* p = (uint8*)&ipl;
						sprintf(tmpsql,"INSERT INTO `ipbanlist`(`list`,`btime`,`rtime`,`reason`) VALUES ('%d.%d.%d.*', NOW() , NOW() +  INTERVAL %d MINUTE ,'Password error ban: %s')", (uint8)p[3], (uint8)p[2], (uint8)p[1], login_config.dynamic_pass_failure_ban_duration, t_uid);
						if(mysql_query(&mysql_handle, tmpsql)) {
							ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
							ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
						}
					}
					if(sql_res) mysql_free_result(sql_res);
				}
				else if (result == -2){	//dynamic banned - add ip to ban list.
					uint8* p = (uint8*)&ipl;
					sprintf(tmpsql,"INSERT INTO `ipbanlist`(`list`,`btime`,`rtime`,`reason`) VALUES ('%d.%d.%d.*', NOW() , NOW() +  INTERVAL 1 MONTH ,'Dynamic banned user id : %s')", (uint8)p[3], (uint8)p[2], (uint8)p[1], t_uid);
					if(mysql_query(&mysql_handle, tmpsql)) {
						ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
						ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
					}
					result = -3;
				}else if(result == 6){ //not lastet version ..
					//result = 5;
				}

				sprintf(tmpsql,"SELECT `ban_until` FROM `%s` WHERE `%s` = %s '%s'",login_db, login_db_userid, login_config.case_sensitive ? "BINARY" : "", t_uid);
				if(mysql_query(&mysql_handle, tmpsql)) {
					ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
					ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
				}
				sql_res = mysql_store_result(&mysql_handle) ;
				sql_row = sql_res?mysql_fetch_row(sql_res):NULL;

				//cannot connect login failed
				memset(WFIFOP(fd,0), '\0', 23);
				WFIFOW(fd,0) = 0x6a;
				WFIFOB(fd,2) = result;
				if (result == 6) { // 6 = Your are Prohibited to log in until %s
					char tmpstr[20];
					time_t ban_until_time = (sql_row) ? atol(sql_row[0]) : 0;
					strftime(tmpstr, 20, login_config.date_format, localtime(&ban_until_time)); tmpstr[19] = '\0';
					strncpy(WFIFOP(fd,3), tmpstr, 20); // ban timestamp goes here
				}
				WFIFOSET(fd,23);

				if (sql_res) mysql_free_result(sql_res);
			}
			RFIFOSKIP(fd,packet_len);
			break;
		}

		case 0x01db:	// request password key
			if (session[fd]->session_data) {
				ShowWarning("login: abnormal request of MD5 key (already opened session).\n");
				session[fd]->eof = 1;
				return 0;
			}
		{
			RFIFOSKIP(fd,2);
			WFIFOHEAD(fd,4 + md5keylen);
			WFIFOW(fd,0) = 0x01dc;
			WFIFOW(fd,2) = 4 + md5keylen;
			memcpy(WFIFOP(fd,4), md5key, md5keylen);
			WFIFOSET(fd,WFIFOW(fd,2));
		}
			break;

		case 0x2710:	// Connection request of a char-server
			if (RFIFOREST(fd) < 86)
				return 0;
			{
				char* server_name;
				uint32 server_ip;
				uint16 server_port;

				WFIFOHEAD(fd,3);
				memcpy(account.userid,RFIFOP(fd,2),NAME_LENGTH); account.userid[23] = '\0';
				memcpy(account.passwd,RFIFOP(fd,26),NAME_LENGTH); account.passwd[23] = '\0';
				account.passwdenc = 0;
				server_name = (char*)RFIFOP(fd,60); server_name[20] = '\0';
				server_ip = ntohl(RFIFOL(fd,54));
				server_port = ntohs(RFIFOW(fd,58));
				ShowInfo("Connection request of the char-server '%s' @ %d.%d.%d.%d:%d (ip: %s)\n",
					server_name, CONVIP(server_ip), server_port, ip);
				jstrescapecpy(t_uid, server_name);
				if (login_config.log_login)
				{
					char t_login[50];
					jstrescapecpy(t_login,account.userid);
					sprintf(tmpsql,"INSERT DELAYED INTO `%s`(`time`,`ip`,`user`,`rcode`,`log`) VALUES (NOW(), '%u', '%s@%s','100', 'charserver - %s@%u.%u.%u.%u:%d')",
						loginlog_db, ipl, t_login, t_uid, t_uid, CONVIP(server_ip), server_port);

					//query
					if(mysql_query(&mysql_handle, tmpsql)) {
						ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
						ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
					}
				}

				result = mmo_auth(&account, fd);
				if (result == -1 && account.sex == 2 && account.account_id < MAX_SERVERS && server_fd[account.account_id] == -1) {
					ShowStatus("Connection of the char-server '%s' accepted.\n", server_name);
					memset(&server[account.account_id], 0, sizeof(struct mmo_char_server));
					server[account.account_id].ip = ntohl(RFIFOL(fd,54));
					server[account.account_id].port = ntohs(RFIFOW(fd,58));
					memcpy(server[account.account_id].name, server_name, 20);
					server[account.account_id].users = 0;
					server[account.account_id].maintenance = RFIFOW(fd,82);
					server[account.account_id].new_ = RFIFOW(fd,84);
					server_fd[account.account_id] = fd;
					sprintf(tmpsql,"DELETE FROM `sstatus` WHERE `index`='%d'", account.account_id);
					//query
					if(mysql_query(&mysql_handle, tmpsql)) {
						ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
						ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
					}

					sprintf(tmpsql,"INSERT INTO `sstatus`(`index`,`name`,`user`) VALUES ( '%d', '%s', '%d')",
						account.account_id, t_uid,0);
					//query
					if(mysql_query(&mysql_handle, tmpsql)) {
						ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
						ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmpsql);
					}
					WFIFOW(fd,0) = 0x2711;
					WFIFOB(fd,2) = 0;
					WFIFOSET(fd,3);
					session[fd]->func_parse = parse_fromchar;
					realloc_fifo(fd, FIFOSIZE_SERVERLINK, FIFOSIZE_SERVERLINK);
					// send GM account to char-server
					send_GM_accounts(fd);
				} else {
					WFIFOW(fd,0) = 0x2711;
					WFIFOB(fd,2) = 3;
					WFIFOSET(fd,3);
				}
			}
			RFIFOSKIP(fd,86);
			return 0;

		case 0x7530:	// Server version information request
		{
			ShowInfo ("Athena version check...\n");
			WFIFOHEAD(fd,10);
			WFIFOW(fd,0) = 0x7531;
			WFIFOB(fd,2) = ATHENA_MAJOR_VERSION;
			WFIFOB(fd,3) = ATHENA_MINOR_VERSION;
			WFIFOB(fd,4) = ATHENA_REVISION;
			WFIFOB(fd,5) = ATHENA_RELEASE_FLAG;
			WFIFOB(fd,6) = ATHENA_OFFICIAL_FLAG;
			WFIFOB(fd,7) = ATHENA_SERVER_LOGIN;
			WFIFOW(fd,8) = ATHENA_MOD_VERSION;
			WFIFOSET(fd,10);
			RFIFOSKIP(fd,2);
			break;
		}

		case 0x7532:	// Request to end connection
			ShowStatus ("End of connection (ip: %s)" RETCODE, ip);
			session[fd]->eof = 1;
			break;

		default:
			ShowStatus ("Abnormal end of connection (ip: %s): Unknown packet 0x%x " RETCODE, ip, RFIFOW(fd,0));
			session[fd]->eof = 1;
			return 0;
		}
	}

	RFIFOSKIP(fd,RFIFOREST(fd));
	return 0;
}

int parse_console(char* buf)
{
	char command[256];

	memset(command, 0, sizeof(command));

	sscanf(buf, "%[^\n]", command);

	//login_log("Console command :%s" RETCODE, command);

	if( strcmpi("shutdown", command) == 0 ||
		strcmpi("exit", command) == 0 ||
		strcmpi("quit", command) == 0 ||
		strcmpi("end", command) == 0 )
		runflag = 0;
	else if( strcmpi("alive", command) == 0 ||
			strcmpi("status", command) == 0 )
		ShowInfo(CL_CYAN"Console: "CL_BOLD"I'm Alive."CL_RESET"\n");
	else if( strcmpi("help", command) == 0 ){
		printf(CL_BOLD"Help of commands:"CL_RESET"\n");
		printf("  To shutdown the server:\n");
		printf("  'shutdown|exit|qui|end'\n");
		printf("  To know if server is alive:\n");
		printf("  'alive|status'\n");
	}

	return 0;
}

static int online_data_cleanup_sub(DBKey key, void *data, va_list ap)
{
	struct online_login_data *character= (struct online_login_data*)data;
	if (character->char_server == -2) //Unknown server.. set them offline
		remove_online_user(character->account_id);
	else if (character->char_server < 0)
		//Free data from players that have not been online for a while.
		db_remove(online_db, key);
	return 0;
}

static int online_data_cleanup(int tid, unsigned int tick, int id, int data)
{
	online_db->foreach(online_db, online_data_cleanup_sub);
	return 0;
} 

//----------------------------------
// Reading Lan Support configuration
//----------------------------------
int login_lan_config_read(const char *lancfgName)
{
	FILE *fp;
	int line_num = 0;
	char line[1024], w1[64], w2[64], w3[64], w4[64];

	if((fp = fopen(lancfgName, "r")) == NULL) {
		ShowWarning("LAN Support configuration file is not found: %s\n", lancfgName);
		return 1;
	}

	ShowInfo("Reading the configuration file %s...\n", lancfgName);

	while(fgets(line, sizeof(line)-1, fp)) {

		line_num++;
		if ((line[0] == '/' && line[1] == '/') || line[0] == '\n' || line[1] == '\n')
			continue;

		line[sizeof(line)-1] = '\0';
		if(sscanf(line,"%[^:]: %[^:]:%[^:]:%[^\r\n]", w1, w2, w3, w4) != 4) {

			ShowWarning("Error syntax of configuration file %s in line %d.\n", lancfgName, line_num);
			continue;
		}

		remove_control_chars(w1);
		remove_control_chars(w2);
		remove_control_chars(w3);
		remove_control_chars(w4);

		if(strcmpi(w1, "subnet") == 0) {

			subnet[subnet_count].mask = str2ip(w2);
			subnet[subnet_count].char_ip = str2ip(w3);
			subnet[subnet_count].map_ip = str2ip(w4);
			subnet[subnet_count].subnet = subnet[subnet_count].char_ip&subnet[subnet_count].mask;
			if (subnet[subnet_count].subnet != (subnet[subnet_count].map_ip&subnet[subnet_count].mask)) {
				ShowError("%s: Configuration Error: The char server (%s) and map server (%s) belong to different subnetworks!\n", lancfgName, w3, w4);
				continue;
			}

			subnet_count++;
		}

		ShowStatus("Read information about %d subnetworks.\n", subnet_count);
	}

	fclose(fp);
	return 0;
}

//-----------------------------------------------------
// clear expired ip bans
//-----------------------------------------------------
int ip_ban_flush(int tid, unsigned int tick, int id, int data)
{
	if(mysql_query(&mysql_handle, "DELETE FROM `ipbanlist` WHERE `rtime` <= NOW()")) {
		ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
		ShowDebug("at %s:%d - DELETE FROM `ipbanlist` WHERE `rtime` <= NOW()\n", __FILE__,__LINE__);
	}

	return 0;
}

//-----------------------------------
// Reading main configuration file
//-----------------------------------
int login_config_read(const char* cfgName)
{
	char line[1024], w1[1024], w2[1024];
	FILE* fp = fopen(cfgName, "r");
	if (fp == NULL) {
		ShowError("Configuration file (%s) not found.\n", cfgName);
		return 1;
	}
	ShowInfo("Reading configuration file %s...\n", cfgName);
	while (fgets(line, sizeof(line)-1, fp))
	{
		if (line[0] == '/' && line[1] == '/')
			continue;

		if (sscanf(line, "%[^:]: %[^\r\n]", w1, w2) < 2)
			continue;

		remove_control_chars(w1);
		remove_control_chars(w2);

		if(!strcmpi(w1,"timestamp_format")) {
			strncpy(timestamp_format, w2, 20);
		} else if(!strcmpi(w1,"stdout_with_ansisequence")) {
			stdout_with_ansisequence = config_switch(w2);
		} else if(!strcmpi(w1,"console_silent")) {
			ShowInfo("Console Silent Setting: %d\n", atoi(w2));
			msg_silent = atoi(w2);
		}
		else if (!strcmpi(w1, "bind_ip")) {
			char ip_str[16];
			login_config.login_ip = host2ip(w2);
			if (login_config.login_ip)
				ShowStatus("Login server binding IP address : %s -> %s\n", w2, ip2str(login_config.login_ip, ip_str));
		} else if(!strcmpi(w1,"login_port")) {
			login_config.login_port = (uint16)atoi(w2);
			ShowStatus("set login_port : %s\n",w2);
		}
		else if (!strcmpi(w1, "log_login"))
			login_config.log_login = config_switch(w2);

		else if (!strcmpi(w1, "ipban"))
			login_config.ipban = config_switch(w2);
		else if (!strcmpi(w1, "dynamic_pass_failure_ban"))
			login_config.dynamic_pass_failure_ban = config_switch(w2);
		else if (!strcmpi(w1, "dynamic_pass_failure_ban_interval"))
			login_config.dynamic_pass_failure_ban_interval = atoi(w2);
		else if (!strcmpi(w1, "dynamic_pass_failure_ban_limit"))
			login_config.dynamic_pass_failure_ban_limit = atoi(w2);
		else if (!strcmpi(w1, "dynamic_pass_failure_ban_duration"))
			login_config.dynamic_pass_failure_ban_duration = atoi(w2);

		else if (!strcmpi(w1, "new_account"))
			login_config.new_account_flag=config_switch(w2);
		else if (!strcmpi(w1, "check_client_version"))
			login_config.check_client_version=config_switch(w2);
		else if (!strcmpi(w1, "client_version_to_connect"))
			login_config.client_version_to_connect=atoi(w2);
		else if (!strcmpi(w1, "use_MD5_passwords"))
			login_config.use_md5_passwds = config_switch(w2);
		else if (!strcmpi(w1, "min_level_to_connect"))
			login_config.min_level_to_connect = atoi(w2);
		else if (!strcmpi(w1, "date_format"))
			strncpy(login_config.date_format, w2, sizeof(login_config.date_format));
		else if (!strcmpi(w1, "console"))
			login_config.console = config_switch(w2);
		else if (!strcmpi(w1, "case_sensitive"))
			login_config.case_sensitive = config_switch(w2);
		else if (!strcmpi(w1, "allowed_regs")) //account flood protection system
			allowed_regs = atoi(w2);
		else if (!strcmpi(w1, "time_allowed"))
			time_allowed = atoi(w2);
		else if (!strcmpi(w1, "online_check"))
			login_config.online_check = config_switch(w2);
		else if (!strcmpi(w1, "use_dnsbl"))
			login_config.use_dnsbl = config_switch(w2);
		else if (!strcmpi(w1, "dnsbl_servers"))
			{ strncpy(login_config.dnsbl_servs, w2, 1023); login_config.dnsbl_servs[1023] = '\0'; }
		else if (!strcmpi(w1, "ip_sync_interval"))
			login_config.ip_sync_interval = 1000*60*atoi(w2); //w2 comes in minutes.
		else if (!strcmpi(w1, "import"))
			login_config_read(w2);
	}
	fclose(fp);
	ShowInfo("Finished reading %s.\n", cfgName);
	return 0;
}

void sql_config_read(const char* cfgName)
{
	char line[1024], w1[1024], w2[1024];
	FILE* fp = fopen(cfgName, "r");
	if(fp == NULL) {
		ShowFatalError("file not found: %s\n", cfgName);
		exit(1);
	}
	ShowInfo("reading configuration file %s...\n", cfgName);
	while (fgets(line, sizeof(line)-1, fp))
	{
		if (line[0] == '/' && line[1] == '/')
			continue;
		if (sscanf(line, "%[^:]: %[^\r\n]", w1, w2) < 2)
			continue;

		if (!strcmpi(w1, "gm_read_method"))
			login_config.login_gm_read = (atoi(w2) == 0);
		else if (!strcmpi(w1, "login_db"))
			strcpy(login_db, w2);
		else if (!strcmpi(w1, "login_server_ip"))
			strcpy(login_server_ip, w2);
		else if (!strcmpi(w1, "login_server_port"))
			login_server_port = atoi(w2);
		else if (!strcmpi(w1, "login_server_id"))
			strcpy(login_server_id, w2);
		else if (!strcmpi(w1, "login_server_pw"))
			strcpy(login_server_pw, w2);
		else if (!strcmpi(w1, "login_server_db"))
			strcpy(login_server_db, w2);
		else if (!strcmpi(w1, "default_codepage"))
			strcpy(default_codepage, w2);
		else if (!strcmpi(w1, "login_db_account_id"))
			strcpy(login_db_account_id, w2);
		else if (!strcmpi(w1, "login_db_userid"))
			strcpy(login_db_userid, w2);
		else if (!strcmpi(w1, "login_db_user_pass"))
			strcpy(login_db_user_pass, w2);
		else if (!strcmpi(w1, "login_db_level"))
			strcpy(login_db_level, w2);
		else if (!strcmpi(w1, "loginlog_db"))
			strcpy(loginlog_db, w2);
		else if (!strcmpi(w1, "reg_db"))
			strcpy(reg_db, w2);
		else if (!strcmpi(w1, "import"))
			sql_config_read(w2);
	}
	fclose(fp);
	ShowInfo("done reading %s.\n", cfgName);
}

void login_set_defaults()
{
	login_config.log_login = true;
	login_config.case_sensitive = true;
	login_config.min_level_to_connect = 0;
	login_config.check_client_version = false;
	login_config.client_version_to_connect = 20;
	login_config.new_account_flag = true;
	login_config.online_check = true;
	login_config.ipban = true;
	login_config.dynamic_pass_failure_ban = true;
	login_config.dynamic_pass_failure_ban_interval = 5;
	login_config.dynamic_pass_failure_ban_limit = 7;
	login_config.dynamic_pass_failure_ban_duration = 5;
	login_config.ip_sync_interval = 0;
	login_config.use_dnsbl = false;
	strcpy(login_config.dnsbl_servs, "");
	login_config.use_md5_passwds = false;
	login_config.login_gm_read = true;
	login_config.login_ip = INADDR_ANY;
	login_config.login_port = 6900;
	login_config.console = false;
	strcpy(login_config.date_format, "%Y-%m-%d %H:%M:%S");
}

//--------------------------------------
// Function called at exit of the server
//--------------------------------------
void do_final(void)
{
	//sync account when terminating.
	//but no need when you using DBMS (mysql)
	ShowStatus("Terminating...\n");
	mmo_db_close();
	online_db->destroy(online_db, NULL);
	if (gm_account_db)
		aFree(gm_account_db);
}

//------------------------------
// Function called when the server
// has received a crash signal.
//------------------------------
void do_abort(void) {
}

void set_server_type(void)
{
	SERVER_TYPE = ATHENA_SERVER_LOGIN;
}

int do_init(int argc, char** argv)
{
	//initialize login server
	int i;

	login_set_defaults();
	//read login configue
	login_config_read((argc > 1) ? argv[1] : LOGIN_CONF_NAME);
	sql_config_read(SQL_CONF_NAME);
	login_lan_config_read((argc > 2) ? argv[2] : LAN_CONF_NAME);
	//Generate Passworded Key.
	memset(md5key, 0, sizeof(md5key));
	md5keylen=rand()%4+12;
	for(i=0;i<md5keylen;i++)
		md5key[i]=rand()%255+1;

	for(i=0;i<AUTH_FIFO_SIZE;i++)
		auth_fifo[i].delflag=1;

	for(i=0;i<MAX_SERVERS;i++)
		server_fd[i]=-1;
	//server port open & binding

	// Online user database init
	online_db = db_alloc(__FILE__,__LINE__,DB_INT,DB_OPT_RELEASE_DATA,sizeof(int));
	add_timer_func_list(waiting_disconnect_timer, "waiting_disconnect_timer");

	login_fd = make_listen_bind(login_config.login_ip, login_config.login_port);

	//Auth start
	mmo_auth_sqldb_init();

	//Read account information.
	if(login_config.login_gm_read)
		read_gm_account();

	//set default parser as parse_login function
	set_defaultparse(parse_login);

	// ban deleter timer
	add_timer_func_list(ip_ban_flush, "ip_ban_flush");
	add_timer_interval(gettick()+10, ip_ban_flush, 0, 0, 60*1000);

	// every 10 minutes cleanup online account db.
	add_timer_func_list(online_data_cleanup, "online_data_cleanup");
	add_timer_interval(gettick() + 600*1000, online_data_cleanup, 0, 0, 600*1000);

	if (login_config.ip_sync_interval) {
		add_timer_func_list(sync_ip_addresses, "sync_ip_addresses");
		add_timer_interval(gettick() + login_config.ip_sync_interval, sync_ip_addresses, 0, 0, login_config.ip_sync_interval);
	}

	if( login_config.console )
	{
		//##TODO invoke a CONSOLE_START plugin event
	}

	new_reg_tick = gettick();

	ShowStatus("The login-server is "CL_GREEN"ready"CL_RESET" (Server is listening on the port %u).\n\n", login_config.login_port);

	return 0;
}