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/*************************************************************************** |
/* SPDX-License-Identifier: GPL-3.0-or-later */ |
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login.c - description |
/* |
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------------------- |
* login |
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Copyright : (C) 2004-2025 by Leaflet |
* - user authentication and online status manager |
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Email : leaflet@leafok.com |
* |
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***************************************************************************/ |
* Copyright (C) 2004-2025 by Leaflet <leaflet@leafok.com> |
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*/ |
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/*************************************************************************** |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 3 of the License, or * |
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* (at your option) any later version. * |
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* * |
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***************************************************************************/ |
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#define _POSIX_C_SOURCE 200112L |
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#include "login.h" |
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#include "bbs.h" |
#include "bbs.h" |
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#include "user_priv.h" |
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#include "common.h" |
#include "common.h" |
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#include "log.h" |
#include "database.h" |
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#include "io.h" |
#include "io.h" |
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#include "ip_mask.h" |
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#include "log.h" |
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#include "login.h" |
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#include "screen.h" |
#include "screen.h" |
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#include "database.h" |
#include "user_priv.h" |
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#include <errno.h> |
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#include <ctype.h> |
#include <ctype.h> |
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#include <errno.h> |
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#include <stdlib.h> |
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#include <string.h> |
#include <string.h> |
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#include <regex.h> |
#include <regex.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
#include <unistd.h> |
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#include <mysql/mysql.h> |
#include <mysql/mysql.h> |
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#include <sys/param.h> |
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static const int BBS_username_min_len = 3; // common len = 5, special len = 3 |
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static const int BBS_password_min_len = 5; // legacy len = 5, current len = 6 |
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int bbs_login(void) |
int bbs_login(void) |
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{ |
{ |
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for (; !SYS_server_exit && !ok && i < BBS_login_retry_times; i++) |
for (; !SYS_server_exit && !ok && i < BBS_login_retry_times; i++) |
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{ |
{ |
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prints("\033[1;33m请输入帐号\033[m(试用请输入`\033[1;36mguest\033[m', " |
prints("\033[1;33m璇疯緭鍏ュ笎鍙穃033[m(璇曠敤璇疯緭鍏\033[1;36mguest\033[m', " |
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"注册请输入`\033[1;31mnew\033[m'): "); |
"娉ㄥ唽璇疯緭鍏\033[1;31mnew\033[m'): "); |
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iflush(); |
iflush(); |
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if (str_input(username, sizeof(username), DOECHO) < 0) |
if (str_input(username, sizeof(username), DOECHO) < 0) |
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{ |
{ |
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display_file(DATA_REGISTER, 1); |
display_file(DATA_REGISTER, 1); |
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return 0; |
return -1; |
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} |
} |
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if (username[0] != '\0') |
if (username[0] != '\0') |
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{ |
{ |
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prints("\033[1;37m请输入密码\033[m: "); |
prints("\033[1;37m璇疯緭鍏ュ瘑鐮乗033[m: "); |
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iflush(); |
iflush(); |
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if (str_input(password, sizeof(password), NOECHO) < 0) |
if (str_input(password, sizeof(password), NOECHO) < 0) |
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// Verify format |
// Verify format |
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for (i = 0; ok && username[i] != '\0'; i++) |
for (i = 0; ok && username[i] != '\0'; i++) |
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{ |
{ |
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if (!(isalpha(username[i]) || (i > 0 && isdigit(username[i])))) |
if (!(isalpha(username[i]) || (i > 0 && (isdigit(username[i]) || username[i] == '_')))) |
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{ |
{ |
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ok = 0; |
ok = 0; |
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} |
} |
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} |
} |
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if (ok && (i < 3 || i > 12)) |
if (ok && (i < BBS_username_min_len || i > BBS_username_max_len)) |
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{ |
{ |
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ok = 0; |
ok = 0; |
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} |
} |
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ok = 0; |
ok = 0; |
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} |
} |
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} |
} |
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if (ok && (i < 5 || i > 12)) |
if (ok && (i < BBS_password_min_len || i > BBS_password_max_len)) |
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{ |
{ |
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ok = 0; |
ok = 0; |
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} |
} |
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if (!ok) |
if (!ok) |
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{ |
{ |
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prints("\033[1;31m用户名或密码格式错误...\033[m\r\n"); |
prints("\033[1;31m鐢ㄦ埛鍚嶆垨瀵嗙爜鏍煎紡閿欒...\033[m\r\n"); |
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ret = 1; |
ret = 1; |
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goto cleanup; |
goto cleanup; |
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} |
} |
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} |
} |
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if ((row = mysql_fetch_row(rs))) |
if ((row = mysql_fetch_row(rs))) |
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{ |
{ |
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if (atoi(row[0]) > BBS_allowed_login_failures_within_interval) |
if (atoi(row[0]) >= BBS_allowed_login_failures_within_interval) |
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{ |
{ |
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prints("\033[1;31m来源存在多次失败登陆尝试,请稍后再试\033[m\r\n"); |
prints("\033[1;31m鏉ユ簮瀛樺湪澶氭澶辫触鐧婚檰灏濊瘯锛岃绋嶅悗鍐嶈瘯锛屾垨浣跨敤Web鏂瑰紡璁块棶\033[m\r\n"); |
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ret = 1; |
ret = 1; |
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goto cleanup; |
goto cleanup; |
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} |
} |
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mysql_free_result(rs); |
mysql_free_result(rs); |
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rs = NULL; |
rs = NULL; |
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// Failed login attempts against the current username during certain time period |
// Failed login attempts against the current username since last successful login |
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snprintf(sql, sizeof(sql), |
snprintf(sql, sizeof(sql), |
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"SELECT COUNT(*) AS err_count FROM user_err_login_log " |
"SELECT COUNT(*) AS err_count FROM user_err_login_log " |
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"WHERE username = '%s' AND login_dt >= SUBDATE(NOW(), INTERVAL 1 DAY)", |
"LEFT JOIN user_list ON user_err_login_log.username = user_list.username " |
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"LEFT JOIN user_pubinfo ON user_list.UID = user_pubinfo.UID " |
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"WHERE user_err_login_log.username = '%s' " |
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"AND (user_err_login_log.login_dt >= user_pubinfo.last_login_dt " |
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"OR user_pubinfo.last_login_dt IS NULL)", |
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username); |
username); |
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if (mysql_query(db, sql) != 0) |
if (mysql_query(db, sql) != 0) |
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{ |
{ |
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} |
} |
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if ((row = mysql_fetch_row(rs))) |
if ((row = mysql_fetch_row(rs))) |
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{ |
{ |
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if (atoi(row[0]) >= 5) |
if (atoi(row[0]) >= BBS_allowed_login_failures_per_account) |
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{ |
{ |
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prints("\033[1;31m账户存在多次失败登陆尝试,请使用Web方式登录\033[m\r\n"); |
prints("\033[1;31m璐︽埛瀛樺湪澶氭澶辫触鐧婚檰灏濊瘯锛岃浣跨敤Web鏂瑰紡鐧诲綍瑙i攣\033[m\r\n"); |
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ret = 1; |
ret = 1; |
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goto cleanup; |
goto cleanup; |
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} |
} |
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if (p_login == 0) |
if (p_login == 0) |
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{ |
{ |
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prints("\033[1;31m您目前无权登陆...\033[m\r\n"); |
prints("\033[1;31m鎮ㄧ洰鍓嶆棤鏉冪櫥闄...\033[m\r\n"); |
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ret = 1; |
ret = 1; |
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goto cleanup; |
goto cleanup; |
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} |
} |
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goto cleanup; |
goto cleanup; |
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} |
} |
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prints("\033[1;31m错误的用户名或密码...\033[m\r\n"); |
prints("\033[1;31m閿欒鐨勭敤鎴峰悕鎴栧瘑鐮...\033[m\r\n"); |
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ret = 1; |
ret = 1; |
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goto cleanup; |
goto cleanup; |
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} |
} |
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case 0: // Login successfully |
case 0: // Login successfully |
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break; |
break; |
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case -1: // Load data error |
case -1: // Load data error |
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prints("\033[1;31m读取用户数据错误...\033[m\r\n"); |
prints("\033[1;31m璇诲彇鐢ㄦ埛鏁版嵁閿欒...\033[m\r\n"); |
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ret = -1; |
ret = -1; |
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goto cleanup; |
goto cleanup; |
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case -2: // Unused |
case -2: // Unused |
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prints("\033[1;31m请通过Web登录更新用户许可协议...\033[m\r\n"); |
prints("\033[1;31m璇烽氳繃Web鐧诲綍鏇存柊鐢ㄦ埛璁稿彲鍗忚...\033[m\r\n"); |
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ret = 1; |
ret = 1; |
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goto cleanup; |
goto cleanup; |
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case -3: // Dead |
case -3: // Dead |
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prints("\033[1;31m很遗憾,您已经永远离开了我们的世界!\033[m\r\n"); |
prints("\033[1;31m寰堥仐鎲撅紝鎮ㄥ凡缁忔案杩滅寮浜嗘垜浠殑涓栫晫锛乗033[m\r\n"); |
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ret = 1; |
ret = 1; |
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goto cleanup; |
goto cleanup; |
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default: |
default: |
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{ |
{ |
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char sql[SQL_BUFFER_LEN]; |
char sql[SQL_BUFFER_LEN]; |
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if (user_online_del(db) != 0) |
snprintf(sql, sizeof(sql), |
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"INSERT INTO visit_log(dt, IP) VALUES(NOW(), '%s')", |
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hostaddr_client); |
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if (mysql_query(db, sql) != 0) |
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{ |
{ |
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log_error("Add visit log error: %s\n", mysql_error(db)); |
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return -1; |
return -1; |
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} |
} |
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if (user_online_del(db) != 0) |
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{ |
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return -2; |
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} |
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snprintf(sql, sizeof(sql), |
snprintf(sql, sizeof(sql), |
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"INSERT INTO user_online(SID, UID, ip, login_tm, last_tm) " |
"INSERT INTO user_online(SID, UID, ip, current_action, login_tm, last_tm) " |
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"VALUES('Telnet_Process_%d', %d, '%s', NOW(), NOW())", |
"VALUES('Telnet_Process_%d', %d, '%s', 'LOGIN', NOW(), NOW())", |
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getpid(), BBS_priv.uid, hostaddr_client); |
getpid(), BBS_priv.uid, hostaddr_client); |
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if (mysql_query(db, sql) != 0) |
if (mysql_query(db, sql) != 0) |
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{ |
{ |
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log_error("Add user_online error: %s\n", mysql_error(db)); |
log_error("Add user_online error: %s\n", mysql_error(db)); |
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return -1; |
return -3; |
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} |
} |
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return 0; |
return 0; |
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return 0; |
return 0; |
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} |
} |
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int user_online_exp(MYSQL *db) |
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{ |
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char sql[SQL_BUFFER_LEN]; |
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// +1 exp for every 5 minutes online since last logout |
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// but at most 24 hours worth of exp can be gained in Telnet session |
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snprintf(sql, sizeof(sql), |
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"UPDATE user_pubinfo SET exp = exp + FLOOR(LEAST(TIMESTAMPDIFF(" |
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"SECOND, GREATEST(last_login_dt, IF(last_logout_dt IS NULL, last_login_dt, last_logout_dt)), NOW()" |
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") / 60 / 5, 12 * 24)), last_logout_dt = NOW() " |
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"WHERE UID = %d", |
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BBS_priv.uid); |
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if (mysql_query(db, sql) != 0) |
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{ |
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log_error("Update user_pubinfo error: %s\n", mysql_error(db)); |
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return -1; |
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} |
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return 0; |
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} |
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int user_online_update(const char *action) |
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{ |
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MYSQL *db = NULL; |
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char sql[SQL_BUFFER_LEN]; |
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if ((action == NULL || strcmp(BBS_current_action, action) == 0) && |
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time(NULL) - BBS_current_action_tm < BBS_current_action_refresh_interval) // No change |
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{ |
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return 0; |
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} |
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if (action != NULL) |
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{ |
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strncpy(BBS_current_action, action, sizeof(BBS_current_action) - 1); |
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BBS_current_action[sizeof(BBS_current_action) - 1] = '\0'; |
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} |
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BBS_current_action_tm = time(NULL); |
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db = db_open(); |
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if (db == NULL) |
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{ |
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log_error("db_open() error: %s\n", mysql_error(db)); |
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return -1; |
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} |
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snprintf(sql, sizeof(sql), |
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"UPDATE user_online SET current_action = '%s', last_tm = NOW() " |
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"WHERE SID = 'Telnet_Process_%d'", |
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BBS_current_action, getpid()); |
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if (mysql_query(db, sql) != 0) |
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{ |
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log_error("Update user_online error: %s\n", mysql_error(db)); |
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return -2; |
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} |
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mysql_close(db); |
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return 1; |
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} |