| 1 |
/***************************************************************************
|
| 2 |
login.c - description
|
| 3 |
-------------------
|
| 4 |
Copyright : (C) 2004-2025 by Leaflet
|
| 5 |
Email : leaflet@leafok.com
|
| 6 |
***************************************************************************/
|
| 7 |
|
| 8 |
/***************************************************************************
|
| 9 |
* *
|
| 10 |
* This program is free software; you can redistribute it and/or modify *
|
| 11 |
* it under the terms of the GNU General Public License as published by *
|
| 12 |
* the Free Software Foundation; either version 3 of the License, or *
|
| 13 |
* (at your option) any later version. *
|
| 14 |
* *
|
| 15 |
***************************************************************************/
|
| 16 |
|
| 17 |
#include "bbs.h"
|
| 18 |
#include "common.h"
|
| 19 |
#include "database.h"
|
| 20 |
#include "io.h"
|
| 21 |
#include "ip_mask.h"
|
| 22 |
#include "log.h"
|
| 23 |
#include "login.h"
|
| 24 |
#include "screen.h"
|
| 25 |
#include "user_priv.h"
|
| 26 |
#include <ctype.h>
|
| 27 |
#include <errno.h>
|
| 28 |
#include <stdlib.h>
|
| 29 |
#include <string.h>
|
| 30 |
#include <regex.h>
|
| 31 |
#include <unistd.h>
|
| 32 |
#include <mysql/mysql.h>
|
| 33 |
|
| 34 |
int bbs_login(void)
|
| 35 |
{
|
| 36 |
char username[BBS_username_max_len + 1];
|
| 37 |
char password[BBS_password_max_len + 1];
|
| 38 |
int i = 0;
|
| 39 |
int ok = 0;
|
| 40 |
|
| 41 |
for (; !SYS_server_exit && !ok && i < BBS_login_retry_times; i++)
|
| 42 |
{
|
| 43 |
prints("\033[1;33m请输入帐号\033[m(试用请输入`\033[1;36mguest\033[m', "
|
| 44 |
"注册请输入`\033[1;31mnew\033[m'): ");
|
| 45 |
iflush();
|
| 46 |
|
| 47 |
if (str_input(username, sizeof(username), DOECHO) < 0)
|
| 48 |
{
|
| 49 |
continue;
|
| 50 |
}
|
| 51 |
|
| 52 |
if (strcmp(username, "guest") == 0)
|
| 53 |
{
|
| 54 |
load_guest_info();
|
| 55 |
|
| 56 |
return 0;
|
| 57 |
}
|
| 58 |
|
| 59 |
if (strcmp(username, "new") == 0)
|
| 60 |
{
|
| 61 |
display_file(DATA_REGISTER, 1);
|
| 62 |
|
| 63 |
return 0;
|
| 64 |
}
|
| 65 |
|
| 66 |
if (username[0] != '\0')
|
| 67 |
{
|
| 68 |
prints("\033[1;37m请输入密码\033[m: ");
|
| 69 |
iflush();
|
| 70 |
|
| 71 |
if (str_input(password, sizeof(password), NOECHO) < 0)
|
| 72 |
{
|
| 73 |
continue;
|
| 74 |
}
|
| 75 |
|
| 76 |
ok = (check_user(username, password) == 0);
|
| 77 |
iflush();
|
| 78 |
}
|
| 79 |
}
|
| 80 |
|
| 81 |
if (!ok)
|
| 82 |
{
|
| 83 |
display_file(DATA_LOGIN_ERROR, 1);
|
| 84 |
return -1;
|
| 85 |
}
|
| 86 |
|
| 87 |
log_common("User \"%s\"(%ld) login from %s:%d\n",
|
| 88 |
BBS_username, BBS_priv.uid, hostaddr_client, port_client);
|
| 89 |
|
| 90 |
return 0;
|
| 91 |
}
|
| 92 |
|
| 93 |
int check_user(const char *username, const char *password)
|
| 94 |
{
|
| 95 |
MYSQL *db = NULL;
|
| 96 |
MYSQL_RES *rs = NULL;
|
| 97 |
MYSQL_ROW row;
|
| 98 |
char sql[SQL_BUFFER_LEN];
|
| 99 |
int ret = 0;
|
| 100 |
int BBS_uid = 0;
|
| 101 |
char client_addr[IP_ADDR_LEN];
|
| 102 |
int i;
|
| 103 |
int ok = 1;
|
| 104 |
char user_tz_env[BBS_user_tz_max_len + 2];
|
| 105 |
|
| 106 |
db = db_open();
|
| 107 |
if (db == NULL)
|
| 108 |
{
|
| 109 |
ret = -1;
|
| 110 |
goto cleanup;
|
| 111 |
}
|
| 112 |
|
| 113 |
// Verify format
|
| 114 |
for (i = 0; ok && username[i] != '\0'; i++)
|
| 115 |
{
|
| 116 |
if (!(isalpha(username[i]) || (i > 0 && isdigit(username[i]))))
|
| 117 |
{
|
| 118 |
ok = 0;
|
| 119 |
}
|
| 120 |
}
|
| 121 |
if (ok && (i < 3 || i > 12))
|
| 122 |
{
|
| 123 |
ok = 0;
|
| 124 |
}
|
| 125 |
for (i = 0; ok && password[i] != '\0'; i++)
|
| 126 |
{
|
| 127 |
if (!isalnum(password[i]))
|
| 128 |
{
|
| 129 |
ok = 0;
|
| 130 |
}
|
| 131 |
}
|
| 132 |
if (ok && (i < 5 || i > 12))
|
| 133 |
{
|
| 134 |
ok = 0;
|
| 135 |
}
|
| 136 |
|
| 137 |
if (!ok)
|
| 138 |
{
|
| 139 |
prints("\033[1;31m用户名或密码格式错误...\033[m\r\n");
|
| 140 |
ret = 1;
|
| 141 |
goto cleanup;
|
| 142 |
}
|
| 143 |
|
| 144 |
// Begin transaction
|
| 145 |
if (mysql_query(db, "SET autocommit=0") != 0)
|
| 146 |
{
|
| 147 |
log_error("SET autocommit=0 error: %s\n", mysql_error(db));
|
| 148 |
ret = -1;
|
| 149 |
goto cleanup;
|
| 150 |
}
|
| 151 |
|
| 152 |
if (mysql_query(db, "BEGIN") != 0)
|
| 153 |
{
|
| 154 |
log_error("Begin transaction error: %s\n", mysql_error(db));
|
| 155 |
ret = -1;
|
| 156 |
goto cleanup;
|
| 157 |
}
|
| 158 |
|
| 159 |
// Failed login attempts from the same source (subnet /24) during certain time period
|
| 160 |
strncpy(client_addr, hostaddr_client, sizeof(client_addr) - 1);
|
| 161 |
client_addr[sizeof(client_addr) - 1] = '\0';
|
| 162 |
|
| 163 |
snprintf(sql, sizeof(sql),
|
| 164 |
"SELECT COUNT(*) AS err_count FROM user_err_login_log "
|
| 165 |
"WHERE login_dt >= SUBDATE(NOW(), INTERVAL %d MINUTE) "
|
| 166 |
"AND login_ip LIKE '%s'",
|
| 167 |
BBS_login_failures_count_interval,
|
| 168 |
ip_mask(client_addr, 1, '%'));
|
| 169 |
if (mysql_query(db, sql) != 0)
|
| 170 |
{
|
| 171 |
log_error("Query user_list error: %s\n", mysql_error(db));
|
| 172 |
ret = -1;
|
| 173 |
goto cleanup;
|
| 174 |
}
|
| 175 |
if ((rs = mysql_store_result(db)) == NULL)
|
| 176 |
{
|
| 177 |
log_error("Get user_list data failed\n");
|
| 178 |
ret = -1;
|
| 179 |
goto cleanup;
|
| 180 |
}
|
| 181 |
if ((row = mysql_fetch_row(rs)))
|
| 182 |
{
|
| 183 |
if (atoi(row[0]) > BBS_allowed_login_failures_within_interval)
|
| 184 |
{
|
| 185 |
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");
|
| 186 |
ret = 1;
|
| 187 |
goto cleanup;
|
| 188 |
}
|
| 189 |
}
|
| 190 |
mysql_free_result(rs);
|
| 191 |
rs = NULL;
|
| 192 |
|
| 193 |
// Failed login attempts against the current username during certain time period
|
| 194 |
snprintf(sql, sizeof(sql),
|
| 195 |
"SELECT COUNT(*) AS err_count FROM user_err_login_log "
|
| 196 |
"WHERE username = '%s' AND login_dt >= SUBDATE(NOW(), INTERVAL 1 DAY)",
|
| 197 |
username);
|
| 198 |
if (mysql_query(db, sql) != 0)
|
| 199 |
{
|
| 200 |
log_error("Query user_list error: %s\n", mysql_error(db));
|
| 201 |
ret = -1;
|
| 202 |
goto cleanup;
|
| 203 |
}
|
| 204 |
if ((rs = mysql_store_result(db)) == NULL)
|
| 205 |
{
|
| 206 |
log_error("Get user_list data failed\n");
|
| 207 |
ret = -1;
|
| 208 |
goto cleanup;
|
| 209 |
}
|
| 210 |
if ((row = mysql_fetch_row(rs)))
|
| 211 |
{
|
| 212 |
if (atoi(row[0]) >= 5)
|
| 213 |
{
|
| 214 |
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");
|
| 215 |
ret = 1;
|
| 216 |
goto cleanup;
|
| 217 |
}
|
| 218 |
}
|
| 219 |
mysql_free_result(rs);
|
| 220 |
rs = NULL;
|
| 221 |
|
| 222 |
snprintf(sql, sizeof(sql),
|
| 223 |
"SELECT UID, username, p_login FROM user_list "
|
| 224 |
"WHERE username = '%s' AND password = SHA2('%s', 256) AND enable",
|
| 225 |
username, password);
|
| 226 |
if (mysql_query(db, sql) != 0)
|
| 227 |
{
|
| 228 |
log_error("Query user_list error: %s\n", mysql_error(db));
|
| 229 |
ret = -1;
|
| 230 |
goto cleanup;
|
| 231 |
}
|
| 232 |
if ((rs = mysql_store_result(db)) == NULL)
|
| 233 |
{
|
| 234 |
log_error("Get user_list data failed\n");
|
| 235 |
ret = -1;
|
| 236 |
goto cleanup;
|
| 237 |
}
|
| 238 |
if ((row = mysql_fetch_row(rs)))
|
| 239 |
{
|
| 240 |
BBS_uid = atoi(row[0]);
|
| 241 |
strncpy(BBS_username, row[1], sizeof(BBS_username) - 1);
|
| 242 |
BBS_username[sizeof(BBS_username) - 1] = '\0';
|
| 243 |
int p_login = atoi(row[2]);
|
| 244 |
|
| 245 |
mysql_free_result(rs);
|
| 246 |
rs = NULL;
|
| 247 |
|
| 248 |
// Add user login log
|
| 249 |
snprintf(sql, sizeof(sql),
|
| 250 |
"INSERT INTO user_login_log(UID, login_dt, login_ip) "
|
| 251 |
"VALUES(%d, NOW(), '%s')",
|
| 252 |
BBS_uid, hostaddr_client);
|
| 253 |
if (mysql_query(db, sql) != 0)
|
| 254 |
{
|
| 255 |
log_error("Insert into user_login_log error: %s\n", mysql_error(db));
|
| 256 |
ret = -1;
|
| 257 |
goto cleanup;
|
| 258 |
}
|
| 259 |
|
| 260 |
// Commit transaction
|
| 261 |
if (mysql_query(db, "COMMIT") != 0)
|
| 262 |
{
|
| 263 |
log_error("Commit transaction error: %s\n", mysql_error(db));
|
| 264 |
ret = -1;
|
| 265 |
goto cleanup;
|
| 266 |
}
|
| 267 |
|
| 268 |
if (p_login == 0)
|
| 269 |
{
|
| 270 |
prints("\033[1;31m您目前无权登陆...\033[m\r\n");
|
| 271 |
ret = 1;
|
| 272 |
goto cleanup;
|
| 273 |
}
|
| 274 |
}
|
| 275 |
else
|
| 276 |
{
|
| 277 |
mysql_free_result(rs);
|
| 278 |
rs = NULL;
|
| 279 |
|
| 280 |
snprintf(sql, sizeof(sql),
|
| 281 |
"INSERT INTO user_err_login_log(username, password, login_dt, login_ip) "
|
| 282 |
"VALUES('%s', '%s', NOW(), '%s')",
|
| 283 |
username, password, hostaddr_client);
|
| 284 |
if (mysql_query(db, sql) != 0)
|
| 285 |
{
|
| 286 |
log_error("Insert into user_err_login_log error: %s\n", mysql_error(db));
|
| 287 |
ret = -1;
|
| 288 |
goto cleanup;
|
| 289 |
}
|
| 290 |
|
| 291 |
// Commit transaction
|
| 292 |
if (mysql_query(db, "COMMIT") != 0)
|
| 293 |
{
|
| 294 |
log_error("Commit transaction error: %s\n", mysql_error(db));
|
| 295 |
ret = -1;
|
| 296 |
goto cleanup;
|
| 297 |
}
|
| 298 |
|
| 299 |
prints("\033[1;31m错误的用户名或密码...\033[m\r\n");
|
| 300 |
ret = 1;
|
| 301 |
goto cleanup;
|
| 302 |
}
|
| 303 |
|
| 304 |
// Set AUTOCOMMIT = 1
|
| 305 |
if (mysql_query(db, "SET autocommit=1") != 0)
|
| 306 |
{
|
| 307 |
log_error("SET autocommit=1 error: %s\n", mysql_error(db));
|
| 308 |
ret = -1;
|
| 309 |
goto cleanup;
|
| 310 |
}
|
| 311 |
|
| 312 |
ret = load_user_info(db, BBS_uid);
|
| 313 |
|
| 314 |
switch (ret)
|
| 315 |
{
|
| 316 |
case 0: // Login successfully
|
| 317 |
break;
|
| 318 |
case -1: // Load data error
|
| 319 |
prints("\033[1;31m读取用户数据错误...\033[m\r\n");
|
| 320 |
ret = -1;
|
| 321 |
goto cleanup;
|
| 322 |
case -2: // Unused
|
| 323 |
prints("\033[1;31m请通过Web登录更新用户许可协议...\033[m\r\n");
|
| 324 |
ret = 1;
|
| 325 |
goto cleanup;
|
| 326 |
case -3: // Dead
|
| 327 |
prints("\033[1;31m很遗憾，您已经永远离开了我们的世界！\033[m\r\n");
|
| 328 |
ret = 1;
|
| 329 |
goto cleanup;
|
| 330 |
default:
|
| 331 |
ret = -2;
|
| 332 |
goto cleanup;
|
| 333 |
}
|
| 334 |
|
| 335 |
snprintf(sql, sizeof(sql),
|
| 336 |
"UPDATE user_pubinfo SET visit_count = visit_count + 1, "
|
| 337 |
"last_login_dt = NOW() WHERE UID = %d",
|
| 338 |
BBS_uid);
|
| 339 |
if (mysql_query(db, sql) != 0)
|
| 340 |
{
|
| 341 |
log_error("Update user_pubinfo error: %s\n", mysql_error(db));
|
| 342 |
ret = -1;
|
| 343 |
goto cleanup;
|
| 344 |
}
|
| 345 |
|
| 346 |
if (user_online_add(db) != 0)
|
| 347 |
{
|
| 348 |
ret = -1;
|
| 349 |
goto cleanup;
|
| 350 |
}
|
| 351 |
|
| 352 |
BBS_last_access_tm = BBS_login_tm = time(NULL);
|
| 353 |
|
| 354 |
// Set user tz to process env
|
| 355 |
if (BBS_user_tz[0] != '\0')
|
| 356 |
{
|
| 357 |
user_tz_env[0] = ':';
|
| 358 |
strncpy(user_tz_env + 1, BBS_user_tz, sizeof(user_tz_env) - 2);
|
| 359 |
user_tz_env[sizeof(user_tz_env) - 1] = '\0';
|
| 360 |
|
| 361 |
if (setenv("TZ", user_tz_env, 1) == -1)
|
| 362 |
{
|
| 363 |
log_error("setenv(TZ = %s) error %d\n", user_tz_env, errno);
|
| 364 |
return -3;
|
| 365 |
}
|
| 366 |
|
| 367 |
tzset();
|
| 368 |
}
|
| 369 |
|
| 370 |
cleanup:
|
| 371 |
mysql_free_result(rs);
|
| 372 |
mysql_close(db);
|
| 373 |
|
| 374 |
return ret;
|
| 375 |
}
|
| 376 |
|
| 377 |
int load_user_info(MYSQL *db, int BBS_uid)
|
| 378 |
{
|
| 379 |
MYSQL_RES *rs = NULL;
|
| 380 |
MYSQL_ROW row;
|
| 381 |
char sql[SQL_BUFFER_LEN];
|
| 382 |
int life;
|
| 383 |
time_t last_login_dt;
|
| 384 |
int ret = 0;
|
| 385 |
|
| 386 |
snprintf(sql, sizeof(sql),
|
| 387 |
"SELECT life, UNIX_TIMESTAMP(last_login_dt), user_timezone, exp, nickname "
|
| 388 |
"FROM user_pubinfo WHERE UID = %d",
|
| 389 |
BBS_uid);
|
| 390 |
if (mysql_query(db, sql) != 0)
|
| 391 |
{
|
| 392 |
log_error("Query user_pubinfo error: %s\n", mysql_error(db));
|
| 393 |
ret = -1;
|
| 394 |
goto cleanup;
|
| 395 |
}
|
| 396 |
if ((rs = mysql_store_result(db)) == NULL)
|
| 397 |
{
|
| 398 |
log_error("Get user_pubinfo data failed\n");
|
| 399 |
ret = -1;
|
| 400 |
goto cleanup;
|
| 401 |
}
|
| 402 |
if ((row = mysql_fetch_row(rs)))
|
| 403 |
{
|
| 404 |
life = atoi(row[0]);
|
| 405 |
last_login_dt = (time_t)atol(row[1]);
|
| 406 |
|
| 407 |
strncpy(BBS_user_tz, row[2], sizeof(BBS_user_tz) - 1);
|
| 408 |
BBS_user_tz[sizeof(BBS_user_tz) - 1] = '\0';
|
| 409 |
|
| 410 |
BBS_user_exp = atoi(row[3]);
|
| 411 |
|
| 412 |
strncpy(BBS_nickname, row[4], sizeof(BBS_nickname));
|
| 413 |
BBS_nickname[sizeof(BBS_nickname) - 1] = '\0';
|
| 414 |
}
|
| 415 |
else
|
| 416 |
{
|
| 417 |
ret = -1; // Data not found
|
| 418 |
goto cleanup;
|
| 419 |
}
|
| 420 |
mysql_free_result(rs);
|
| 421 |
rs = NULL;
|
| 422 |
|
| 423 |
if (life != 333 && life != 365 && life != 666 && life != 999 && // Not immortal
|
| 424 |
time(NULL) - last_login_dt > 60 * 60 * 24 * life)
|
| 425 |
{
|
| 426 |
ret = -3; // Dead
|
| 427 |
goto cleanup;
|
| 428 |
}
|
| 429 |
|
| 430 |
if (load_priv(db, &BBS_priv, BBS_uid) != 0)
|
| 431 |
{
|
| 432 |
ret = -1;
|
| 433 |
goto cleanup;
|
| 434 |
}
|
| 435 |
|
| 436 |
cleanup:
|
| 437 |
mysql_free_result(rs);
|
| 438 |
|
| 439 |
return ret;
|
| 440 |
}
|
| 441 |
|
| 442 |
int load_guest_info(void)
|
| 443 |
{
|
| 444 |
MYSQL *db = NULL;
|
| 445 |
int ret = 0;
|
| 446 |
|
| 447 |
db = db_open();
|
| 448 |
if (db == NULL)
|
| 449 |
{
|
| 450 |
ret = -1;
|
| 451 |
goto cleanup;
|
| 452 |
}
|
| 453 |
|
| 454 |
strncpy(BBS_username, "guest", sizeof(BBS_username) - 1);
|
| 455 |
BBS_username[sizeof(BBS_username) - 1] = '\0';
|
| 456 |
|
| 457 |
BBS_user_exp = 0;
|
| 458 |
|
| 459 |
strncpy(BBS_nickname, "Guest", sizeof(BBS_nickname));
|
| 460 |
BBS_nickname[sizeof(BBS_nickname) - 1] = '\0';
|
| 461 |
|
| 462 |
if (load_priv(db, &BBS_priv, 0) != 0)
|
| 463 |
{
|
| 464 |
ret = -1;
|
| 465 |
goto cleanup;
|
| 466 |
}
|
| 467 |
|
| 468 |
if (user_online_add(db) != 0)
|
| 469 |
{
|
| 470 |
ret = -1;
|
| 471 |
goto cleanup;
|
| 472 |
}
|
| 473 |
|
| 474 |
BBS_last_access_tm = BBS_login_tm = time(NULL);
|
| 475 |
|
| 476 |
cleanup:
|
| 477 |
mysql_close(db);
|
| 478 |
|
| 479 |
return ret;
|
| 480 |
}
|
| 481 |
|
| 482 |
int user_online_add(MYSQL *db)
|
| 483 |
{
|
| 484 |
char sql[SQL_BUFFER_LEN];
|
| 485 |
|
| 486 |
if (user_online_del(db) != 0)
|
| 487 |
{
|
| 488 |
return -1;
|
| 489 |
}
|
| 490 |
|
| 491 |
snprintf(sql, sizeof(sql),
|
| 492 |
"INSERT INTO user_online(SID, UID, ip, login_tm, last_tm) "
|
| 493 |
"VALUES('Telnet_Process_%d', %d, '%s', NOW(), NOW())",
|
| 494 |
getpid(), BBS_priv.uid, hostaddr_client);
|
| 495 |
if (mysql_query(db, sql) != 0)
|
| 496 |
{
|
| 497 |
log_error("Add user_online error: %s\n", mysql_error(db));
|
| 498 |
return -1;
|
| 499 |
}
|
| 500 |
|
| 501 |
return 0;
|
| 502 |
}
|
| 503 |
|
| 504 |
int user_online_del(MYSQL *db)
|
| 505 |
{
|
| 506 |
char sql[SQL_BUFFER_LEN];
|
| 507 |
|
| 508 |
snprintf(sql, sizeof(sql),
|
| 509 |
"DELETE FROM user_online WHERE SID = 'Telnet_Process_%d'",
|
| 510 |
getpid());
|
| 511 |
if (mysql_query(db, sql) != 0)
|
| 512 |
{
|
| 513 |
log_error("Delete user_online error: %s\n", mysql_error(db));
|
| 514 |
return -1;
|
| 515 |
}
|
| 516 |
|
| 517 |
return 0;
|
| 518 |
}
|
| 519 |
|
| 520 |
int user_online_update(const char *action)
|
| 521 |
{
|
| 522 |
MYSQL *db = NULL;
|
| 523 |
char sql[SQL_BUFFER_LEN];
|
| 524 |
|
| 525 |
if (strcmp(BBS_current_action, action) == 0) // No change
|
| 526 |
{
|
| 527 |
return 0;
|
| 528 |
}
|
| 529 |
|
| 530 |
strncpy(BBS_current_action, action, sizeof(BBS_current_action) - 1);
|
| 531 |
BBS_current_action[sizeof(BBS_current_action) - 1] = '\0';
|
| 532 |
|
| 533 |
db = db_open();
|
| 534 |
if (db == NULL)
|
| 535 |
{
|
| 536 |
log_error("db_open() error: %s\n", mysql_error(db));
|
| 537 |
return -1;
|
| 538 |
}
|
| 539 |
|
| 540 |
snprintf(sql, sizeof(sql),
|
| 541 |
"UPDATE user_online SET current_action = '%s', last_tm=NOW() "
|
| 542 |
"WHERE SID = 'Telnet_Process_%d'",
|
| 543 |
BBS_current_action, getpid());
|
| 544 |
if (mysql_query(db, sql) != 0)
|
| 545 |
{
|
| 546 |
log_error("Update user_online error: %s\n", mysql_error(db));
|
| 547 |
return -2;
|
| 548 |
}
|
| 549 |
|
| 550 |
mysql_close(db);
|
| 551 |
|
| 552 |
return 1;
|
| 553 |
}
|
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