lbbs/src/bbs_main.c

/***************************************************************************
                                                  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.                                   *
 *                                                                         *
 ***************************************************************************/

#include "article_favor.h"
#include "article_view_log.h"
#include "bbs.h"
#include "bbs_cmd.h"
#include "bbs_main.h"
#include "common.h"
#include "database.h"
#include "editor.h"
#include "io.h"
#include "log.h"
#include "login.h"
#include "menu.h"
#include "screen.h"
#include "section_list.h"
#include "trie_dict.h"
#include "user_priv.h"
#include <errno.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>

int bbs_info()
{
        prints("欢迎光临 \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(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 u_login_count = 0;

        MYSQL *db;
        MYSQL_RES *rs;
        MYSQL_ROW row;

        db = db_open();
        if (db == NULL)
        {
                return -1;
        }

        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));
                mysql_close(db);
                return -2;
        }
        if ((rs = mysql_store_result(db)) == NULL)
        {
                log_error("Get user_online data failed\n");
                mysql_close(db);
                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));
                mysql_close(db);
                return -2;
        }
        if ((rs = mysql_store_result(db)) == NULL)
        {
                log_error("Get user_online data failed\n");
                mysql_close(db);
                return -2;
        }
        if ((row = mysql_fetch_row(rs)))
        {
                u_anonymous = (u_int32_t)atoi(row[0]);
        }
        mysql_free_result(rs);

        snprintf(sql, sizeof(sql), "SELECT COUNT(UID) AS cc FROM user_list WHERE enable");
        if (mysql_query(db, sql) != 0)
        {
                log_error("Query user_list error: %s\n", mysql_error(db));
                mysql_close(db);
                return -2;
        }
        if ((rs = mysql_store_result(db)) == NULL)
        {
                log_error("Get user_list data failed\n");
                mysql_close(db);
                return -2;
        }
        if ((row = mysql_fetch_row(rs)))
        {
                u_total = (u_int32_t)atoi(row[0]);
        }
        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)
        {
                log_error("Query user_login_log error: %s\n", mysql_error(db));
                mysql_close(db);
                return -2;
        }
        if ((rs = mysql_store_result(db)) == NULL)
        {
                log_error("Get user_login_log data failed\n");
                mysql_close(db);
                return -2;
        }
        if ((row = mysql_fetch_row(rs)))
        {
                u_login_count = (u_int32_t)atoi(row[0]);
        }
        mysql_free_result(rs);

        mysql_close(db);

        // Count current user before login
        u_online++;
        u_anonymous++;

        // Display logo
        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，累计访问人次：[\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, u_login_count);

        iflush();

        return 0;
}

int bbs_logout(void)
{
        MYSQL *db;

        db = db_open();
        if (db == NULL)
        {
                return -1;
        }

        if (user_online_del(db) < 0)
        {
                return -2;
        }

        mysql_close(db);

        display_file(DATA_GOODBYE, 1);

        log_common("User logout\n");

        return 0;
}

int bbs_center()
{
        int ch;
        time_t t_last_action;

        BBS_last_access_tm = t_last_action = time(NULL);

        clearscr();

        show_top("", BBS_name, "");
        show_active_board();
        show_bottom("");
        display_menu(&bbs_menu);
        iflush();

        while (!SYS_server_exit)
        {
                ch = igetch(100);

                if (bbs_menu.choose_step == 0 && time(NULL) - t_last_action >= 10)
                {
                        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
                        return 0;
                case KEY_TIMEOUT:
                        if (time(NULL) - BBS_last_access_tm >= MAX_DELAY_TIME)
                        {
                                return 0;
                        }
                        continue;
                case CR:
                        igetch_reset();
                default:
                        switch (menu_control(&bbs_menu, ch))
                        {
                        case EXITBBS:
                        case EXITMENU:
                                return 0;
                        case REDRAW:
                                t_last_action = time(NULL);
                                clearscr();
                                show_top("", BBS_name, "");
                                show_active_board();
                                show_bottom("");
                                display_menu(&bbs_menu);
                                break;
                        case NOREDRAW:
                        case UNKNOWN_CMD:
                        default:
                                break;
                        }
                        iflush();
                }

                BBS_last_access_tm = time(NULL);
        }

        return 0;
}

int bbs_main()
{
        struct sigaction act = {0};

        // 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;
        }

        // Set data pools in shared memory readonly
        if (set_trie_dict_shm_readonly() < 0)
        {
                goto cleanup;
        }
        if (set_article_block_shm_readonly() < 0)
        {
                goto cleanup;
        }
        if (set_section_list_shm_readonly() < 0)
        {
                goto cleanup;
        }

        // Load menu in shared memory
        if (set_menu_shm_readonly(&bbs_menu) < 0)
        {
                goto cleanup;
        }

        set_input_echo(0);

        // System info
        if (bbs_info() < 0)
        {
                goto cleanup;
        }

        // Welcome
        if (bbs_welcome() < 0)
        {
                goto cleanup;
        }

        // User login
        if (SSH_v2)
        {
                prints("\033[1m%s 欢迎使用ssh方式访问 \033[1;33m按任意键继续...\033[m", BBS_username);
                iflush();
                igetch_t(MAX_DELAY_TIME);
        }
        else if (bbs_login() < 0)
        {
                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)
        {
                log_error("editor_memory_pool_init() error\n");
                goto cleanup;
        }

        clearscr();

        // BBS Top 10
        display_file(VAR_BBS_TOP, 1);

        // Main
        bbs_center();

        // Logout
        bbs_logout();

        // Save incremental article view log
        if (article_view_log_save_inc(&BBS_article_view_log) < 0)
        {
                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 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(&bbs_menu);
        detach_menu_shm(&top10_menu);

        // Detach data pools shm
        detach_section_list_shm();
        detach_article_block_shm();
        detach_trie_dict_shm();

        return 0;
}
1	/***************************************************************************
2	bbs_main.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 "article_favor.h"
18	#include "article_view_log.h"
19	#include "bbs.h"
20	#include "bbs_cmd.h"
21	#include "bbs_main.h"
22	#include "common.h"
23	#include "database.h"
24	#include "editor.h"
25	#include "io.h"
26	#include "log.h"
27	#include "login.h"
28	#include "menu.h"
29	#include "screen.h"
30	#include "section_list.h"
31	#include "trie_dict.h"
32	#include "user_priv.h"
33	#include <errno.h>
34	#include <signal.h>
35	#include <stdlib.h>
36	#include <string.h>
37	#include <time.h>
38	#include <unistd.h>
39
40	int bbs_info()
41	{
42	prints("欢迎光临 \033[1;33m%s \033[32m[%s] \033[37m( %s )\033[m\r\n",
43	BBS_name, BBS_server, APP_INFO);
44
45	return iflush();
46	}
47
48	int bbs_welcome(void)
49	{
50	char sql[SQL_BUFFER_LEN];
51
52	u_int32_t u_online = 0;
53	u_int32_t u_anonymous = 0;
54	u_int32_t u_total = 0;
55	u_int32_t u_login_count = 0;
56
57	MYSQL *db;
58	MYSQL_RES *rs;
59	MYSQL_ROW row;
60
61	db = db_open();
62	if (db == NULL)
63	{
64	return -1;
65	}
66
67	snprintf(sql, sizeof(sql),
68	"SELECT COUNT(*) AS cc FROM "
69	"(SELECT DISTINCT SID FROM user_online "
70	"WHERE last_tm >= SUBDATE(NOW(), INTERVAL %d SECOND)) AS t1",
71	BBS_user_off_line);
72	if (mysql_query(db, sql) != 0)
73	{
74	log_error("Query user_online error: %s\n", mysql_error(db));
75	mysql_close(db);
76	return -2;
77	}
78	if ((rs = mysql_store_result(db)) == NULL)
79	{
80	log_error("Get user_online data failed\n");
81	mysql_close(db);
82	return -2;
83	}
84	if ((row = mysql_fetch_row(rs)))
85	{
86	u_online = (u_int32_t)atoi(row[0]);
87	}
88	mysql_free_result(rs);
89
90	snprintf(sql, sizeof(sql),
91	"SELECT COUNT(*) AS cc FROM "
92	"(SELECT DISTINCT SID FROM user_online "
93	"WHERE UID = 0 AND last_tm >= SUBDATE(NOW(), INTERVAL %d SECOND)) AS t1",
94	BBS_user_off_line);
95	if (mysql_query(db, sql) != 0)
96	{
97	log_error("Query user_online error: %s\n", mysql_error(db));
98	mysql_close(db);
99	return -2;
100	}
101	if ((rs = mysql_store_result(db)) == NULL)
102	{
103	log_error("Get user_online data failed\n");
104	mysql_close(db);
105	return -2;
106	}
107	if ((row = mysql_fetch_row(rs)))
108	{
109	u_anonymous = (u_int32_t)atoi(row[0]);
110	}
111	mysql_free_result(rs);
112
113	snprintf(sql, sizeof(sql), "SELECT COUNT(UID) AS cc FROM user_list WHERE enable");
114	if (mysql_query(db, sql) != 0)
115	{
116	log_error("Query user_list error: %s\n", mysql_error(db));
117	mysql_close(db);
118	return -2;
119	}
120	if ((rs = mysql_store_result(db)) == NULL)
121	{
122	log_error("Get user_list data failed\n");
123	mysql_close(db);
124	return -2;
125	}
126	if ((row = mysql_fetch_row(rs)))
127	{
128	u_total = (u_int32_t)atoi(row[0]);
129	}
130	mysql_free_result(rs);
131
132	snprintf(sql, sizeof(sql), "SELECT ID FROM user_login_log ORDER BY ID LIMIT 1");
133	if (mysql_query(db, sql) != 0)
134	{
135	log_error("Query user_login_log error: %s\n", mysql_error(db));
136	mysql_close(db);
137	return -2;
138	}
139	if ((rs = mysql_store_result(db)) == NULL)
140	{
141	log_error("Get user_login_log data failed\n");
142	mysql_close(db);
143	return -2;
144	}
145	if ((row = mysql_fetch_row(rs)))
146	{
147	u_login_count = (u_int32_t)atoi(row[0]);
148	}
149	mysql_free_result(rs);
150
151	mysql_close(db);
152
153	// Count current user before login
154	u_online++;
155	u_anonymous++;
156
157	// Display logo
158	display_file(DATA_WELCOME, 2);
159
160	// Display welcome message
161	prints("\r\033[1;35m欢迎光临\033[33m 【 %s 】 \033[35mBBS\r\n"
162	"\033[32m目前上站人数 [\033[36m%d/%d\033[32m] "
163	"匿名游客[\033[36m%d\033[32m] "
164	"注册用户数[\033[36m%d/%d\033[32m]\r\n"
165	"从 [\033[36m%s\033[32m] 起，累计访问人次：[\033[36m%d\033[32m]\033[m\r\n",
166	BBS_name, u_online, BBS_max_client, u_anonymous, u_total,
167	BBS_max_user, BBS_start_dt, u_login_count);
168
169	iflush();
170
171	return 0;
172	}
173
174	int bbs_logout(void)
175	{
176	MYSQL *db;
177
178	db = db_open();
179	if (db == NULL)
180	{
181	return -1;
182	}
183
184	if (user_online_del(db) < 0)
185	{
186	return -2;
187	}
188
189	mysql_close(db);
190
191	display_file(DATA_GOODBYE, 1);
192
193	log_common("User logout\n");
194
195	return 0;
196	}
197
198	int bbs_center()
199	{
200	int ch;
201	time_t t_last_action;
202
203	BBS_last_access_tm = t_last_action = time(NULL);
204
205	clearscr();
206
207	show_top("", BBS_name, "");
208	show_active_board();
209	show_bottom("");
210	display_menu(&bbs_menu);
211	iflush();
212
213	while (!SYS_server_exit)
214	{
215	ch = igetch(100);
216
217	if (bbs_menu.choose_step == 0 && time(NULL) - t_last_action >= 10)
218	{
219	t_last_action = time(NULL);
220
221	show_active_board();
222	show_bottom("");
223	display_menu_cursor(&bbs_menu, 1);
224	iflush();
225	}
226
227	if (user_online_update("MENU") < 0)
228	{
229	log_error("user_online_update(MENU) error\n");
230	}
231
232	switch (ch)
233	{
234	case KEY_NULL: // broken pipe
235	return 0;
236	case KEY_TIMEOUT:
237	if (time(NULL) - BBS_last_access_tm >= MAX_DELAY_TIME)
238	{
239	return 0;
240	}
241	continue;
242	case CR:
243	igetch_reset();
244	default:
245	switch (menu_control(&bbs_menu, ch))
246	{
247	case EXITBBS:
248	case EXITMENU:
249	return 0;
250	case REDRAW:
251	t_last_action = time(NULL);
252	clearscr();
253	show_top("", BBS_name, "");
254	show_active_board();
255	show_bottom("");
256	display_menu(&bbs_menu);
257	break;
258	case NOREDRAW:
259	case UNKNOWN_CMD:
260	default:
261	break;
262	}
263	iflush();
264	}
265
266	BBS_last_access_tm = time(NULL);
267	}
268
269	return 0;
270	}
271
272	int bbs_main()
273	{
274	struct sigaction act = {0};
275
276	// Set signal handler
277	act.sa_handler = SIG_IGN;
278	if (sigaction(SIGHUP, &act, NULL) == -1)
279	{
280	log_error("set signal action of SIGHUP error: %d\n", errno);
281	goto cleanup;
282	}
283	act.sa_handler = SIG_DFL;
284	if (sigaction(SIGCHLD, &act, NULL) == -1)
285	{
286	log_error("set signal action of SIGCHLD error: %d\n", errno);
287	goto cleanup;
288	}
289
290	// Set data pools in shared memory readonly
291	if (set_trie_dict_shm_readonly() < 0)
292	{
293	goto cleanup;
294	}
295	if (set_article_block_shm_readonly() < 0)
296	{
297	goto cleanup;
298	}
299	if (set_section_list_shm_readonly() < 0)
300	{
301	goto cleanup;
302	}
303
304	// Load menu in shared memory
305	if (set_menu_shm_readonly(&bbs_menu) < 0)
306	{
307	goto cleanup;
308	}
309
310	set_input_echo(0);
311
312	// System info
313	if (bbs_info() < 0)
314	{
315	goto cleanup;
316	}
317
318	// Welcome
319	if (bbs_welcome() < 0)
320	{
321	goto cleanup;
322	}
323
324	// User login
325	if (SSH_v2)
326	{
327	prints("\033[1m%s 欢迎使用ssh方式访问 \033[1;33m按任意键继续...\033[m", BBS_username);
328	iflush();
329	igetch_t(MAX_DELAY_TIME);
330	}
331	else if (bbs_login() < 0)
332	{
333	goto cleanup;
334	}
335
336	// Load article view log
337	if (article_view_log_load(BBS_priv.uid, &BBS_article_view_log, 0) < 0)
338	{
339	log_error("article_view_log_load() error\n");
340	goto cleanup;
341	}
342
343	// Load article favorite
344	if (article_favor_load(BBS_priv.uid, &BBS_article_favor, 0) < 0)
345	{
346	log_error("article_favor_load() error\n");
347	goto cleanup;
348	}
349
350	// Init editor memory pool
351	if (editor_memory_pool_init() < 0)
352	{
353	log_error("editor_memory_pool_init() error\n");
354	goto cleanup;
355	}
356
357	clearscr();
358
359	// BBS Top 10
360	display_file(VAR_BBS_TOP, 1);
361
362	// Main
363	bbs_center();
364
365	// Logout
366	bbs_logout();
367
368	// Save incremental article view log
369	if (article_view_log_save_inc(&BBS_article_view_log) < 0)
370	{
371	log_error("article_view_log_save_inc() error\n");
372	}
373
374	// Save incremental article favorite
375	if (article_favor_save_inc(&BBS_article_favor) < 0)
376	{
377	log_error("article_favor_save_inc() error\n");
378	}
379
380	cleanup:
381	// Cleanup editor memory pool
382	editor_memory_pool_cleanup();
383
384	// Unload article view log
385	article_view_log_unload(&BBS_article_view_log);
386
387	// Unload article favor
388	article_favor_unload(&BBS_article_favor);
389
390	// Detach menu in shared memory
391	detach_menu_shm(&bbs_menu);
392	detach_menu_shm(&top10_menu);
393
394	// Detach data pools shm
395	detach_section_list_shm();
396	detach_article_block_shm();
397	detach_trie_dict_shm();
398
399	return 0;
400	}
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