--- lbbs/src/bbs_main.c	2025/05/27 00:54:01	1.55
+++ lbbs/src/bbs_main.c	2025/11/20 09:02:46	1.111
@@ -1,183 +1,133 @@
-/***************************************************************************
-						  bbs_main.c  -  description
-							 -------------------
-	Copyright            : (C) 2004-2025 by Leaflet
-	Email                : leaflet@leafok.com
- ***************************************************************************/
-
-/***************************************************************************
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 3 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- ***************************************************************************/
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * bbs_main
+ *   - entry and major procedures of user interactive access
+ *
+ * Copyright (C) 2004-2025  Leaflet <leaflet@leafok.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
-#include "bbs_main.h"
+#include "article_favor.h"
+#include "article_view_log.h"
 #include "bbs.h"
-#include "login.h"
-#include "user_priv.h"
+#include "bbs_cmd.h"
+#include "bbs_main.h"
+#include "bwf.h"
 #include "common.h"
 #include "database.h"
-#include "log.h"
+#include "editor.h"
 #include "io.h"
-#include "screen.h"
+#include "log.h"
+#include "login.h"
 #include "menu.h"
-#include "bbs_cmd.h"
+#include "screen.h"
 #include "section_list.h"
+#include "section_list_display.h"
+#include "str_process.h"
 #include "trie_dict.h"
-#include <unistd.h>
-#include <time.h>
-#include <string.h>
+#include "user_list.h"
+#include "user_priv.h"
+#include <ctype.h>
+#include <errno.h>
+#include <signal.h>
 #include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+static void child_proc_sig_usr1_handler(int i)
+{
+	// Restart log
+	if (log_restart() < 0)
+	{
+		log_error("Restart logging failed\n");
+	}
+}
 
 int bbs_info()
 {
-	prints("欢迎光临 \033[1;33m%s \033[32m[%s]  \033[37m( %s )\r\n",
-		   BBS_name, BBS_server, app_version);
+	prints("\r\n娆㈣繋鍏変复 \033[1;33m%s \033[32m[%s] \033[37m(%s)\033[m\r\n",
+		   BBS_name, BBS_server, APP_INFO);
 
 	return iflush();
 }
 
-int bbs_welcome(MYSQL *db)
+int bbs_welcome(void)
 {
-	char sql[SQL_BUFFER_LEN];
-
-	u_int32_t u_online = 0;
-	u_int32_t u_anonymous = 0;
-	u_int32_t u_total = 0;
-	u_int32_t max_u_online = 0;
-	u_int32_t u_login_count = 0;
-
-	MYSQL_RES *rs;
-	MYSQL_ROW row;
-
-	snprintf(sql, sizeof(sql),
-			 "SELECT COUNT(*) AS cc FROM "
-			 "(SELECT DISTINCT SID FROM user_online "
-			 "WHERE last_tm >= SUBDATE(NOW(), INTERVAL %d SECOND)) AS t1",
-			 BBS_user_off_line);
-	if (mysql_query(db, sql) != 0)
-	{
-		log_error("Query user_online error: %s\n", mysql_error(db));
-		return -2;
-	}
-	if ((rs = mysql_store_result(db)) == NULL)
-	{
-		log_error("Get user_online data failed\n");
-		return -2;
-	}
-	if ((row = mysql_fetch_row(rs)))
-	{
-		u_online = (u_int32_t)atoi(row[0]);
-	}
-	mysql_free_result(rs);
-
-	snprintf(sql, sizeof(sql),
-			 "SELECT COUNT(*) AS cc FROM "
-			 "(SELECT DISTINCT SID FROM user_online "
-			 "WHERE UID = 0 AND last_tm >= SUBDATE(NOW(), INTERVAL %d SECOND)) AS t1",
-			 BBS_user_off_line);
-	if (mysql_query(db, sql) != 0)
-	{
-		log_error("Query user_online error: %s\n", mysql_error(db));
-		return -2;
-	}
-	if ((rs = mysql_store_result(db)) == NULL)
-	{
-		log_error("Get user_online data failed\n");
-		return -2;
-	}
-	if ((row = mysql_fetch_row(rs)))
-	{
-		u_anonymous = (u_int32_t)atoi(row[0]);
-	}
-	mysql_free_result(rs);
+	int u_online = 0;
+	int u_anonymous = 0;
+	int u_total = 0;
+	int u_login_count = 0;
 
-	snprintf(sql, sizeof(sql), "SELECT COUNT(UID) AS cc FROM user_list WHERE enable");
-	if (mysql_query(db, sql) != 0)
+	if (get_user_online_list_count(&u_online, &u_anonymous) < 0)
 	{
-		log_error("Query user_list error: %s\n", mysql_error(db));
-		return -2;
-	}
-	if ((rs = mysql_store_result(db)) == NULL)
-	{
-		log_error("Get user_list data failed\n");
-		return -2;
+		log_error("get_user_online_list_count() error\n");
+		u_online = 0;
 	}
-	if ((row = mysql_fetch_row(rs)))
+	u_online += u_anonymous;
+	u_online++; // current user
+	if (BBS_priv.uid == 0)
 	{
-		u_total = (u_int32_t)atoi(row[0]);
+		u_anonymous++;
 	}
-	mysql_free_result(rs);
 
-	snprintf(sql, sizeof(sql), "SELECT ID FROM user_login_log ORDER BY ID LIMIT 1");
-	if (mysql_query(db, sql) != 0)
+	if (get_user_list_count(&u_total) < 0)
 	{
-		log_error("Query user_login_log error: %s\n", mysql_error(db));
-		return -2;
+		log_error("get_user_list_count() error\n");
+		u_total = 0;
 	}
-	if ((rs = mysql_store_result(db)) == NULL)
-	{
-		log_error("Get user_login_log data failed\n");
-		return -2;
-	}
-	if ((row = mysql_fetch_row(rs)))
-	{
-		u_login_count = (u_int32_t)atoi(row[0]);
-	}
-	mysql_free_result(rs);
 
-	// Log max user_online
-	FILE *fin, *fout;
-	if ((fin = fopen(VAR_MAX_USER_ONLINE, "r")) != NULL)
+	if (get_user_login_count(&u_login_count) < 0)
 	{
-		fscanf(fin, "%d", &max_u_online);
-		fclose(fin);
-	}
-	if (u_online > max_u_online)
-	{
-		max_u_online = u_online;
-		if ((fout = fopen(VAR_MAX_USER_ONLINE, "w")) == NULL)
-		{
-			log_error("Open max_user_online.dat failed\n");
-			return -3;
-		}
-		fprintf(fout, "%d\n", max_u_online);
-		fclose(fout);
+		log_error("get_user_login_count() error\n");
+		u_login_count = 0;
 	}
 
-	// Count current user before login
-	u_online++;
-	u_anonymous++;
-
 	// Display logo
-	display_file_ex(DATA_WELCOME, 1, 0);
+	display_file(DATA_WELCOME, 2);
 
 	// Display welcome message
-	prints("\r\033[1;35m欢迎光临\033[33m 【 %s 】 \033[35mBBS\r\n"
-		   "\033[32m目前上站人数 [\033[36m%d/%d\033[32m] "
-		   "匿名游客[\033[36m%d\033[32m] "
-		   "注册用户数[\033[36m%d/%d\033[32m]\r\n"
-		   "从 [\033[36m%s\033[32m] 起，最高人数记录："
-		   "[\033[36m%d\033[32m]，累计访问人次：[\033[36m%d\033[32m]\r\n",
+	prints("\r\033[1;35m娆㈣繋鍏変复\033[33m 銆� %s 銆� \033[35mBBS\r\n"
+		   "\033[32m鐩墠涓婄珯浜烘暟 [\033[36m%d/%d\033[32m] "
+		   "鍖垮悕娓稿[\033[36m%d\033[32m] "
+		   "娉ㄥ唽鐢ㄦ埛鏁癧\033[36m%d/%d\033[32m]\r\n"
+		   "浠� [\033[36m%s\033[32m] 璧凤紝绱璁块棶浜烘: [\033[36m%d\033[32m]\033[m\r\n",
 		   BBS_name, u_online, BBS_max_client, u_anonymous, u_total,
-		   BBS_max_user, BBS_start_dt, max_u_online, u_login_count);
+		   BBS_max_user_count, BBS_start_dt, u_login_count);
+
+	iflush();
 
 	return 0;
 }
 
-int bbs_logout(MYSQL *db)
+int bbs_logout(void)
 {
-	if (user_online_del(db) < 0)
+	MYSQL *db;
+
+	db = db_open();
+	if (db == NULL)
 	{
 		return -1;
 	}
 
-	display_file_ex(DATA_GOODBYE, 1, 1);
+	if (user_online_exp(db) < 0)
+	{
+		return -2;
+	}
+
+	if (user_online_del(db) < 0)
+	{
+		return -3;
+	}
+
+	mysql_close(db);
 
-	log_std("User logout\n");
+	display_file(DATA_GOODBYE, 1);
+
+	log_common("User [%s] logout, idle for %ld seconds since last input\n", BBS_username, time(NULL) - BBS_last_access_tm);
 
 	return 0;
 }
@@ -187,53 +137,69 @@ int bbs_center()
 	int ch;
 	time_t t_last_action;
 
-	BBS_last_access_tm = t_last_action = time(0);
+	BBS_last_access_tm = t_last_action = time(NULL);
 
 	clearscr();
 
-	show_top("");
+	show_top("", BBS_name, "");
 	show_active_board();
 	show_bottom("");
-	display_menu(p_bbs_menu);
+	display_menu(&bbs_menu);
 	iflush();
 
 	while (!SYS_server_exit)
 	{
 		ch = igetch(100);
 
-		if (p_bbs_menu->choose_step == 0 && time(0) - t_last_action >= 10)
+		if (ch != KEY_NULL && ch != KEY_TIMEOUT)
+		{
+			BBS_last_access_tm = time(NULL);
+#ifdef _DEBUG
+			log_error("Debug: BBS_last_access_tm is updated\n");
+#endif
+		}
+
+		if (bbs_menu.choose_step == 0 && time(NULL) - t_last_action >= 10)
 		{
-			t_last_action = time(0);
+			t_last_action = time(NULL);
 
 			show_active_board();
 			show_bottom("");
+			display_menu_cursor(&bbs_menu, 1);
 			iflush();
 		}
 
+		if (user_online_update("MENU") < 0)
+		{
+			log_error("user_online_update(MENU) error\n");
+		}
+
 		switch (ch)
 		{
 		case KEY_NULL: // broken pipe
+			log_error("KEY_NULL\n");
 			return 0;
 		case KEY_TIMEOUT:
-			if (time(0) - BBS_last_access_tm >= MAX_DELAY_TIME)
+			if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
 			{
+				log_error("User input timeout\n");
 				return 0;
 			}
 			continue;
 		case CR:
-			igetch_reset();
 		default:
-			switch (menu_control(p_bbs_menu, ch))
+			switch (menu_control(&bbs_menu, ch))
 			{
 			case EXITBBS:
+			case EXITMENU:
 				return 0;
 			case REDRAW:
-				t_last_action = time(0);
+				t_last_action = time(NULL);
 				clearscr();
-				show_top("");
+				show_top("", BBS_name, "");
 				show_active_board();
 				show_bottom("");
-				display_menu(p_bbs_menu);
+				display_menu(&bbs_menu);
 				break;
 			case NOREDRAW:
 			case UNKNOWN_CMD:
@@ -242,8 +208,67 @@ int bbs_center()
 			}
 			iflush();
 		}
+	}
 
-		BBS_last_access_tm = time(0);
+	return 0;
+}
+
+int bbs_charset_select()
+{
+	char msg[LINE_BUFFER_LEN];
+	int ch;
+
+	snprintf(msg, sizeof(msg),
+			 "\rChoose character set in 5 seconds, (U)UTF-8, (G)GBK [U]: ");
+
+	while (!SYS_server_exit)
+	{
+		ch = press_any_key_ex(msg, 5);
+		switch (toupper(ch))
+		{
+		case KEY_NULL:
+			return -1;
+		case KEY_TIMEOUT:
+		case CR:
+		case 'U':
+			break;
+		case 'G':
+			if (io_conv_init("GBK") < 0)
+			{
+				log_error("io_conv_init(%s) error\n", "GBK");
+				return -1;
+			}
+			break;
+		default:
+			continue;
+		}
+
+		break;
+	}
+
+	snprintf(msg, sizeof(msg),
+			 "\r璇峰湪5绉掑唴閫夋嫨瀹藉瓧绗︽樉绀鸿鍒�, (V)鍙樺, (F)瀹氬? [V]: ");
+
+	while (!SYS_server_exit)
+	{
+		ch = press_any_key_ex(msg, 5);
+		switch (toupper(ch))
+		{
+		case KEY_NULL:
+			return -1;
+		case KEY_TIMEOUT:
+		case CR:
+		case 'V':
+			UTF8_fixed_width = 0;
+			break;
+		case 'F':
+			UTF8_fixed_width = 1;
+			break;
+		default:
+			continue;
+		}
+
+		break;
 	}
 
 	return 0;
@@ -251,7 +276,28 @@ int bbs_center()
 
 int bbs_main()
 {
-	MYSQL *db = NULL;
+	struct sigaction act = {0};
+	char msg[LINE_BUFFER_LEN];
+
+	// Set signal handler
+	act.sa_handler = SIG_IGN;
+	if (sigaction(SIGHUP, &act, NULL) == -1)
+	{
+		log_error("set signal action of SIGHUP error: %d\n", errno);
+		goto cleanup;
+	}
+	act.sa_handler = SIG_DFL;
+	if (sigaction(SIGCHLD, &act, NULL) == -1)
+	{
+		log_error("set signal action of SIGCHLD error: %d\n", errno);
+		goto cleanup;
+	}
+	act.sa_handler = child_proc_sig_usr1_handler;
+	if (sigaction(SIGUSR1, &act, NULL) == -1)
+	{
+		log_error("set signal action of SIGUSR1 error: %d\n", errno);
+		goto cleanup;
+	}
 
 	// Set data pools in shared memory readonly
 	if (set_trie_dict_shm_readonly() < 0)
@@ -266,67 +312,140 @@ int bbs_main()
 	{
 		goto cleanup;
 	}
+#ifdef HAVE_SYSTEM_V
+	if (set_user_list_pool_shm_readonly() < 0)
+	{
+		goto cleanup;
+	}
+#endif
 
 	// Load menu in shared memory
-	if (set_menu_shm_readonly(p_bbs_menu) < 0)
+	if (set_menu_shm_readonly(&bbs_menu) < 0)
 	{
 		goto cleanup;
 	}
 
+	// Set default charset
+	if (io_conv_init(BBS_default_charset) < 0)
+	{
+		log_error("io_conv_init(%s) error\n", BBS_default_charset);
+		goto cleanup;
+	}
+
 	set_input_echo(0);
 
-	// System info
-	if (bbs_info() < 0)
+	// Set user charset
+	if (bbs_charset_select() < 0)
 	{
 		goto cleanup;
 	}
 
-	db = db_open();
-	if (db == NULL)
+	// System info
+	if (bbs_info() < 0)
 	{
-		prints("无法连接数据库\n");
 		goto cleanup;
 	}
 
 	// Welcome
-	if (bbs_welcome(db) < 0)
+	if (bbs_welcome() < 0)
 	{
-		mysql_close(db);
 		goto cleanup;
 	}
 
 	// User login
-	if (bbs_login(db) < 0)
+	if (SSH_v2)
+	{
+		snprintf(msg, sizeof(msg), "\033[1m%s 娆㈣繋浣跨敤ssh鏂瑰紡璁块棶 \033[1;33m鎸変换鎰忛敭缁х画...\033[m", BBS_username);
+		press_any_key_ex(msg, 60);
+	}
+	else if (bbs_login() < 0)
+	{
+		goto cleanup;
+	}
+	log_common("User [%s] login\n", BBS_username);
+
+	// Load section aid locations
+	if (section_aid_locations_load(BBS_priv.uid) < 0)
+	{
+		log_error("article_view_log_load() error\n");
+		goto cleanup;
+	}
+
+	// Load article view log
+	if (article_view_log_load(BBS_priv.uid, &BBS_article_view_log, 0) < 0)
+	{
+		log_error("article_view_log_load() error\n");
+		goto cleanup;
+	}
+
+	// Load article favorite
+	if (article_favor_load(BBS_priv.uid, &BBS_article_favor, 0) < 0)
+	{
+		log_error("article_favor_load() error\n");
+		goto cleanup;
+	}
+
+	// Init editor memory pool
+	if (editor_memory_pool_init() < 0)
 	{
-		mysql_close(db);
+		log_error("editor_memory_pool_init() error\n");
 		goto cleanup;
 	}
+
 	clearscr();
 
 	// BBS Top 10
-	display_file_ex(VAR_BBS_TOP, 1, 1);
+	display_file(VAR_BBS_TOP, 1);
 
 	// Main
 	bbs_center();
 
 	// Logout
-	bbs_logout(db);
+	bbs_logout();
 
-cleanup:
-	if (db != NULL)
+	// Save section aid locations
+	if (section_aid_locations_save(BBS_priv.uid) < 0)
+	{
+		log_error("article_view_log_save() error\n");
+	}
+
+	// Save incremental article view log
+	if (article_view_log_save_inc(&BBS_article_view_log) < 0)
 	{
-		mysql_close(db);
+		log_error("article_view_log_save_inc() error\n");
 	}
 
+	// Save incremental article favorite
+	if (article_favor_save_inc(&BBS_article_favor) < 0)
+	{
+		log_error("article_favor_save_inc() error\n");
+	}
+
+cleanup:
+	// Cleanup iconv
+	io_conv_cleanup();
+
+	// Cleanup editor memory pool
+	editor_memory_pool_cleanup();
+
+	// Unload article view log
+	article_view_log_unload(&BBS_article_view_log);
+
+	// Unload article favor
+	article_favor_unload(&BBS_article_favor);
+
 	// Detach menu in shared memory
-	detach_menu_shm(p_bbs_menu);
-	free(p_bbs_menu);
-	p_bbs_menu = NULL;
+	detach_menu_shm(&bbs_menu);
+	detach_menu_shm(&top10_menu);
 
 	// Detach data pools shm
+	detach_user_list_pool_shm();
 	detach_section_list_shm();
 	detach_article_block_shm();
 	detach_trie_dict_shm();
 
+	// Cleanup BWF
+	bwf_unload();
+
 	return 0;
 }