/[LeafOK_CVS]/lbbs/src/bbs_main.c
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Annotation of /lbbs/src/bbs_main.c

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Revision 1.114 - (hide annotations)
Sun Nov 23 04:28:24 2025 UTC (3 months, 3 weeks ago) by sysadm
Branch: MAIN
Changes since 1.113: +8 -4 lines
Content type: text/x-csrc
Fix bug: regard Ctrl-C as EXITMENU by mistake

1 sysadm 1.97 /* SPDX-License-Identifier: GPL-3.0-or-later */
2     /*
3     * bbs_main
4     * - entry and major procedures of user interactive access
5     *
6 sysadm 1.98 * Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com>
7 sysadm 1.97 */
8 sysadm 1.1
9 sysadm 1.108 #ifdef HAVE_CONFIG_H
10     #include "config.h"
11     #endif
12    
13 sysadm 1.78 #include "article_favor.h"
14 sysadm 1.73 #include "article_view_log.h"
15     #include "bbs.h"
16     #include "bbs_cmd.h"
17 sysadm 1.32 #include "bbs_main.h"
18 sysadm 1.102 #include "bwf.h"
19 sysadm 1.1 #include "common.h"
20 sysadm 1.35 #include "database.h"
21 sysadm 1.73 #include "editor.h"
22     #include "io.h"
23 sysadm 1.32 #include "log.h"
24 sysadm 1.73 #include "login.h"
25     #include "menu.h"
26 sysadm 1.32 #include "screen.h"
27 sysadm 1.55 #include "section_list.h"
28 sysadm 1.96 #include "section_list_display.h"
29 sysadm 1.103 #include "str_process.h"
30 sysadm 1.55 #include "trie_dict.h"
31 sysadm 1.93 #include "user_list.h"
32 sysadm 1.73 #include "user_priv.h"
33 sysadm 1.104 #include <ctype.h>
34 sysadm 1.74 #include <errno.h>
35     #include <signal.h>
36 sysadm 1.73 #include <stdlib.h>
37     #include <string.h>
38     #include <time.h>
39 sysadm 1.32 #include <unistd.h>
40 sysadm 1.16
41 sysadm 1.109 static void child_proc_sig_usr1_handler(int i)
42     {
43     // Restart log
44     if (log_restart() < 0)
45     {
46     log_error("Restart logging failed\n");
47     }
48     }
49    
50 sysadm 1.31 int bbs_info()
51 sysadm 1.5 {
52 sysadm 1.110 prints("\r\n欢迎光临 \033[1;33m%s \033[32m[%s] \033[37m(%s)\033[m\r\n",
53 sysadm 1.72 BBS_name, BBS_server, APP_INFO);
54 sysadm 1.16
55 sysadm 1.43 return iflush();
56     }
57    
58 sysadm 1.65 int bbs_welcome(void)
59 sysadm 1.43 {
60 sysadm 1.94 int u_online = 0;
61     int u_anonymous = 0;
62     int u_total = 0;
63     int u_login_count = 0;
64 sysadm 1.43
65 sysadm 1.94 if (get_user_online_list_count(&u_online, &u_anonymous) < 0)
66 sysadm 1.43 {
67 sysadm 1.94 log_error("get_user_online_list_count() error\n");
68     u_online = 0;
69 sysadm 1.43 }
70 sysadm 1.94 u_online += u_anonymous;
71     u_online++; // current user
72     if (BBS_priv.uid == 0)
73 sysadm 1.43 {
74 sysadm 1.94 u_anonymous++;
75 sysadm 1.43 }
76    
77 sysadm 1.94 if (get_user_list_count(&u_total) < 0)
78 sysadm 1.43 {
79 sysadm 1.94 log_error("get_user_list_count() error\n");
80     u_total = 0;
81 sysadm 1.43 }
82    
83 sysadm 1.95 if (get_user_login_count(&u_login_count) < 0)
84 sysadm 1.43 {
85 sysadm 1.95 log_error("get_user_login_count() error\n");
86     u_login_count = 0;
87 sysadm 1.43 }
88    
89     // Display logo
90 sysadm 1.68 display_file(DATA_WELCOME, 2);
91 sysadm 1.43
92     // Display welcome message
93 sysadm 1.76 prints("\r\033[1;35m欢迎光临\033[33m 【 %s 】 \033[35mBBS\r\n"
94     "\033[32m目前上站人数 [\033[36m%d/%d\033[32m] "
95     "匿名游客[\033[36m%d\033[32m] "
96     "注册用户数[\033[36m%d/%d\033[32m]\r\n"
97 sysadm 1.107 "从 [\033[36m%s\033[32m] 起,累计访问人次: [\033[36m%d\033[32m]\033[m\r\n",
98 sysadm 1.43 BBS_name, u_online, BBS_max_client, u_anonymous, u_total,
99 sysadm 1.93 BBS_max_user_count, BBS_start_dt, u_login_count);
100 sysadm 1.5
101 sysadm 1.64 iflush();
102    
103 sysadm 1.31 return 0;
104 sysadm 1.5 }
105    
106 sysadm 1.65 int bbs_logout(void)
107 sysadm 1.5 {
108 sysadm 1.65 MYSQL *db;
109    
110     db = db_open();
111     if (db == NULL)
112     {
113     return -1;
114     }
115    
116 sysadm 1.80 if (user_online_exp(db) < 0)
117     {
118     return -2;
119     }
120    
121 sysadm 1.43 if (user_online_del(db) < 0)
122     {
123 sysadm 1.80 return -3;
124 sysadm 1.43 }
125    
126 sysadm 1.65 mysql_close(db);
127    
128 sysadm 1.68 display_file(DATA_GOODBYE, 1);
129 sysadm 1.43
130 sysadm 1.91 log_common("User [%s] logout, idle for %ld seconds since last input\n", BBS_username, time(NULL) - BBS_last_access_tm);
131 sysadm 1.7
132 sysadm 1.31 return 0;
133 sysadm 1.7 }
134    
135 sysadm 1.31 int bbs_center()
136 sysadm 1.7 {
137 sysadm 1.39 int ch;
138 sysadm 1.114 int loop;
139 sysadm 1.31 time_t t_last_action;
140 sysadm 1.16
141 sysadm 1.70 BBS_last_access_tm = t_last_action = time(NULL);
142 sysadm 1.16
143 sysadm 1.31 clearscr();
144 sysadm 1.12
145 sysadm 1.58 show_top("", BBS_name, "");
146 sysadm 1.31 show_active_board();
147     show_bottom("");
148 sysadm 1.75 display_menu(&bbs_menu);
149 sysadm 1.50 iflush();
150 sysadm 1.16
151 sysadm 1.114 for (loop = 1; !SYS_server_exit && loop;)
152 sysadm 1.25 {
153 sysadm 1.44 ch = igetch(100);
154 sysadm 1.16
155 sysadm 1.85 if (ch != KEY_NULL && ch != KEY_TIMEOUT)
156     {
157     BBS_last_access_tm = time(NULL);
158 sysadm 1.101 #ifdef _DEBUG
159     log_error("Debug: BBS_last_access_tm is updated\n");
160     #endif
161 sysadm 1.85 }
162 sysadm 1.82
163 sysadm 1.75 if (bbs_menu.choose_step == 0 && time(NULL) - t_last_action >= 10)
164 sysadm 1.31 {
165 sysadm 1.70 t_last_action = time(NULL);
166 sysadm 1.52
167 sysadm 1.31 show_active_board();
168     show_bottom("");
169 sysadm 1.75 display_menu_cursor(&bbs_menu, 1);
170 sysadm 1.50 iflush();
171 sysadm 1.31 }
172    
173 sysadm 1.71 if (user_online_update("MENU") < 0)
174     {
175     log_error("user_online_update(MENU) error\n");
176     }
177    
178 sysadm 1.31 switch (ch)
179     {
180 sysadm 1.42 case KEY_NULL: // broken pipe
181 sysadm 1.82 log_error("KEY_NULL\n");
182 sysadm 1.114 loop = 0;
183     break;
184 sysadm 1.31 case KEY_TIMEOUT:
185 sysadm 1.99 if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
186 sysadm 1.31 {
187 sysadm 1.82 log_error("User input timeout\n");
188 sysadm 1.114 loop = 0;
189     break;
190 sysadm 1.31 }
191 sysadm 1.39 continue;
192 sysadm 1.44 case CR:
193 sysadm 1.31 default:
194 sysadm 1.75 switch (menu_control(&bbs_menu, ch))
195 sysadm 1.31 {
196     case EXITBBS:
197 sysadm 1.74 case EXITMENU:
198 sysadm 1.114 loop = 0;
199     break;
200 sysadm 1.31 case REDRAW:
201 sysadm 1.70 t_last_action = time(NULL);
202 sysadm 1.39 clearscr();
203 sysadm 1.58 show_top("", BBS_name, "");
204 sysadm 1.39 show_active_board();
205     show_bottom("");
206 sysadm 1.75 display_menu(&bbs_menu);
207 sysadm 1.31 break;
208     case NOREDRAW:
209     case UNKNOWN_CMD:
210     default:
211     break;
212     }
213 sysadm 1.50 iflush();
214 sysadm 1.31 }
215 sysadm 1.16 }
216 sysadm 1.7
217 sysadm 1.31 return 0;
218 sysadm 1.15 }
219 sysadm 1.32
220 sysadm 1.87 int bbs_charset_select()
221     {
222     char msg[LINE_BUFFER_LEN];
223     int ch;
224    
225 sysadm 1.89 snprintf(msg, sizeof(msg),
226 sysadm 1.105 "\rChoose character set in 5 seconds, (U)UTF-8, (G)GBK [U]: ");
227 sysadm 1.89
228 sysadm 1.88 while (!SYS_server_exit)
229     {
230 sysadm 1.105 ch = press_any_key_ex(msg, 5);
231 sysadm 1.103 switch (toupper(ch))
232 sysadm 1.87 {
233 sysadm 1.89 case KEY_NULL:
234     return -1;
235 sysadm 1.88 case KEY_TIMEOUT:
236     case CR:
237     case 'U':
238 sysadm 1.103 break;
239 sysadm 1.88 case 'G':
240 sysadm 1.92 if (io_conv_init("GBK") < 0)
241 sysadm 1.88 {
242 sysadm 1.92 log_error("io_conv_init(%s) error\n", "GBK");
243 sysadm 1.88 return -1;
244     }
245 sysadm 1.103 break;
246     default:
247     continue;
248     }
249    
250     break;
251     }
252    
253     snprintf(msg, sizeof(msg),
254 sysadm 1.106 "\r请在5秒内选择宽字符显示规则, (V)变宽, (F)定宽? [V]: ");
255 sysadm 1.103
256     while (!SYS_server_exit)
257     {
258 sysadm 1.105 ch = press_any_key_ex(msg, 5);
259 sysadm 1.103 switch (toupper(ch))
260     {
261     case KEY_NULL:
262     return -1;
263     case KEY_TIMEOUT:
264     case CR:
265 sysadm 1.106 case 'V':
266 sysadm 1.105 UTF8_fixed_width = 0;
267     break;
268 sysadm 1.103 case 'F':
269     UTF8_fixed_width = 1;
270     break;
271 sysadm 1.88 default:
272     continue;
273 sysadm 1.87 }
274 sysadm 1.103
275     break;
276 sysadm 1.87 }
277    
278     return 0;
279     }
280    
281 sysadm 1.32 int bbs_main()
282     {
283 sysadm 1.74 struct sigaction act = {0};
284 sysadm 1.86 char msg[LINE_BUFFER_LEN];
285 sysadm 1.74
286     // Set signal handler
287     act.sa_handler = SIG_IGN;
288     if (sigaction(SIGHUP, &act, NULL) == -1)
289     {
290     log_error("set signal action of SIGHUP error: %d\n", errno);
291     goto cleanup;
292     }
293     act.sa_handler = SIG_DFL;
294     if (sigaction(SIGCHLD, &act, NULL) == -1)
295     {
296     log_error("set signal action of SIGCHLD error: %d\n", errno);
297     goto cleanup;
298     }
299 sysadm 1.109 act.sa_handler = child_proc_sig_usr1_handler;
300     if (sigaction(SIGUSR1, &act, NULL) == -1)
301     {
302     log_error("set signal action of SIGUSR1 error: %d\n", errno);
303     goto cleanup;
304     }
305 sysadm 1.74
306 sysadm 1.55 // Set data pools in shared memory readonly
307     if (set_trie_dict_shm_readonly() < 0)
308     {
309     goto cleanup;
310     }
311     if (set_article_block_shm_readonly() < 0)
312     {
313     goto cleanup;
314     }
315 sysadm 1.112 #ifdef HAVE_SYSTEM_V
316 sysadm 1.55 if (set_section_list_shm_readonly() < 0)
317     {
318     goto cleanup;
319     }
320 sysadm 1.93 if (set_user_list_pool_shm_readonly() < 0)
321     {
322     goto cleanup;
323     }
324 sysadm 1.111 #endif
325 sysadm 1.55
326     // Load menu in shared memory
327 sysadm 1.75 if (set_menu_shm_readonly(&bbs_menu) < 0)
328 sysadm 1.55 {
329     goto cleanup;
330     }
331 sysadm 1.32
332 sysadm 1.87 // Set default charset
333 sysadm 1.100 if (io_conv_init(BBS_default_charset) < 0)
334 sysadm 1.87 {
335 sysadm 1.100 log_error("io_conv_init(%s) error\n", BBS_default_charset);
336 sysadm 1.87 goto cleanup;
337     }
338    
339 sysadm 1.32 set_input_echo(0);
340    
341 sysadm 1.87 // Set user charset
342 sysadm 1.110 if (bbs_charset_select() < 0)
343     {
344     goto cleanup;
345     }
346 sysadm 1.87
347 sysadm 1.43 // System info
348     if (bbs_info() < 0)
349     {
350 sysadm 1.55 goto cleanup;
351 sysadm 1.43 }
352    
353 sysadm 1.32 // Welcome
354 sysadm 1.65 if (bbs_welcome() < 0)
355 sysadm 1.43 {
356 sysadm 1.55 goto cleanup;
357 sysadm 1.43 }
358 sysadm 1.32
359 sysadm 1.43 // User login
360 sysadm 1.64 if (SSH_v2)
361     {
362 sysadm 1.86 snprintf(msg, sizeof(msg), "\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);
363 sysadm 1.87 press_any_key_ex(msg, 60);
364 sysadm 1.64 }
365 sysadm 1.65 else if (bbs_login() < 0)
366 sysadm 1.43 {
367 sysadm 1.55 goto cleanup;
368 sysadm 1.43 }
369 sysadm 1.83 log_common("User [%s] login\n", BBS_username);
370 sysadm 1.64
371 sysadm 1.96 // Load section aid locations
372     if (section_aid_locations_load(BBS_priv.uid) < 0)
373     {
374     log_error("article_view_log_load() error\n");
375     goto cleanup;
376     }
377 sysadm 1.97
378 sysadm 1.67 // Load article view log
379     if (article_view_log_load(BBS_priv.uid, &BBS_article_view_log, 0) < 0)
380     {
381     log_error("article_view_log_load() error\n");
382     goto cleanup;
383     }
384 sysadm 1.65
385 sysadm 1.78 // Load article favorite
386     if (article_favor_load(BBS_priv.uid, &BBS_article_favor, 0) < 0)
387     {
388     log_error("article_favor_load() error\n");
389     goto cleanup;
390     }
391    
392 sysadm 1.69 // Init editor memory pool
393     if (editor_memory_pool_init() < 0)
394     {
395     log_error("editor_memory_pool_init() error\n");
396     goto cleanup;
397     }
398    
399 sysadm 1.32 clearscr();
400    
401     // BBS Top 10
402 sysadm 1.68 display_file(VAR_BBS_TOP, 1);
403 sysadm 1.32
404 sysadm 1.55 // Main
405     bbs_center();
406    
407     // Logout
408 sysadm 1.65 bbs_logout();
409 sysadm 1.55
410 sysadm 1.96 // Save section aid locations
411     if (section_aid_locations_save(BBS_priv.uid) < 0)
412     {
413     log_error("article_view_log_save() error\n");
414     }
415    
416 sysadm 1.67 // Save incremental article view log
417     if (article_view_log_save_inc(&BBS_article_view_log) < 0)
418     {
419     log_error("article_view_log_save_inc() error\n");
420     }
421    
422 sysadm 1.78 // Save incremental article favorite
423     if (article_favor_save_inc(&BBS_article_favor) < 0)
424     {
425     log_error("article_favor_save_inc() error\n");
426     }
427    
428 sysadm 1.55 cleanup:
429 sysadm 1.87 // Cleanup iconv
430     io_conv_cleanup();
431    
432 sysadm 1.69 // Cleanup editor memory pool
433     editor_memory_pool_cleanup();
434 sysadm 1.71
435 sysadm 1.67 // Unload article view log
436     article_view_log_unload(&BBS_article_view_log);
437    
438 sysadm 1.78 // Unload article favor
439     article_favor_unload(&BBS_article_favor);
440    
441 sysadm 1.55 // Detach menu in shared memory
442 sysadm 1.75 detach_menu_shm(&bbs_menu);
443 sysadm 1.79 detach_menu_shm(&top10_menu);
444 sysadm 1.46
445 sysadm 1.55 // Detach data pools shm
446 sysadm 1.93 detach_user_list_pool_shm();
447 sysadm 1.55 detach_section_list_shm();
448     detach_article_block_shm();
449     detach_trie_dict_shm();
450 sysadm 1.35
451 sysadm 1.102 // Cleanup BWF
452 sysadm 1.113 bwf_cleanup();
453 sysadm 1.102
454 sysadm 1.32 return 0;
455     }

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