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

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Revision 1.54 - (hide annotations)
Thu Oct 23 01:16:56 2025 UTC (4 months, 3 weeks ago) by sysadm
Branch: MAIN
Changes since 1.53: +2 -2 lines
Content type: text/x-csrc 
Load user list / online user list initially during startup
1 sysadm 1.1 /***************************************************************************
2     section_list_loader.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 sysadm 1.11 #include "article_cache.h"
18 sysadm 1.44 #include "article_view_log.h"
19 sysadm 1.19 #include "bbs.h"
20 sysadm 1.30 #include "database.h"
21 sysadm 1.39 #include "ip_mask.h"
22 sysadm 1.1 #include "log.h"
23 sysadm 1.4 #include "menu.h"
24 sysadm 1.30 #include "section_list_loader.h"
25 sysadm 1.52 #include "user_list.h"
26 sysadm 1.45 #include "user_priv.h"
27 sysadm 1.1 #include <errno.h>
28 sysadm 1.4 #include <signal.h>
29 sysadm 1.29 #include <stdio.h>
30 sysadm 1.1 #include <stdlib.h>
31 sysadm 1.22 #include <string.h>
32 sysadm 1.4 #include <unistd.h>
33    
34 sysadm 1.5 int section_list_loader_pid;
35     int last_article_op_log_mid;
36 sysadm 1.1
37 sysadm 1.38 int load_section_config_from_db(int update_gen_ex)
38 sysadm 1.1 {
39 sysadm 1.23 MYSQL *db = NULL;
40     MYSQL_RES *rs = NULL, *rs2 = NULL;
41 sysadm 1.1 MYSQL_ROW row, row2;
42     char sql[SQL_BUFFER_LEN];
43     int32_t sid;
44 sysadm 1.8 char master_list[(BBS_username_max_len + 1) * 3 + 1];
45 sysadm 1.1 SECTION_LIST *p_section;
46 sysadm 1.34 char ex_menu_conf[FILE_PATH_LEN];
47     MENU_SET ex_menu_set_new;
48 sysadm 1.23 int ret = 0;
49 sysadm 1.1
50 sysadm 1.2 db = db_open();
51     if (db == NULL)
52     {
53     log_error("db_open() error: %s\n", mysql_error(db));
54 sysadm 1.23 ret = -1;
55     goto cleanup;
56 sysadm 1.2 }
57    
58 sysadm 1.1 snprintf(sql, sizeof(sql),
59 sysadm 1.2 "SELECT section_config.SID, sname, section_config.title, section_config.CID, "
60 sysadm 1.34 "read_user_level, write_user_level, section_config.enable * section_class.enable AS enable, "
61     "UNIX_TIMESTAMP(ex_menu_tm) AS ex_menu_tm "
62 sysadm 1.2 "FROM section_config INNER JOIN section_class ON section_config.CID = section_class.CID "
63 sysadm 1.1 "ORDER BY section_config.SID");
64    
65     if (mysql_query(db, sql) != 0)
66     {
67     log_error("Query section_list error: %s\n", mysql_error(db));
68 sysadm 1.23 ret = -2;
69     goto cleanup;
70 sysadm 1.1 }
71     if ((rs = mysql_store_result(db)) == NULL)
72     {
73     log_error("Get section_list data failed\n");
74 sysadm 1.23 ret = -2;
75     goto cleanup;
76 sysadm 1.1 }
77 sysadm 1.2
78     ret = 0;
79 sysadm 1.1 while ((row = mysql_fetch_row(rs)))
80     {
81     sid = atoi(row[0]);
82    
83     // Query section master
84     snprintf(sql, sizeof(sql),
85     "SELECT username FROM section_master "
86     "INNER JOIN user_list ON section_master.UID = user_list.UID "
87     "WHERE SID = %d AND section_master.enable AND (NOW() BETWEEN begin_dt AND end_dt) "
88 sysadm 1.8 "ORDER BY major DESC, begin_dt ASC LIMIT 3",
89 sysadm 1.1 sid);
90    
91     if (mysql_query(db, sql) != 0)
92     {
93     log_error("Query section_master error: %s\n", mysql_error(db));
94 sysadm 1.2 ret = -3;
95     break;
96 sysadm 1.1 }
97     if ((rs2 = mysql_store_result(db)) == NULL)
98     {
99     log_error("Get section_master data failed\n");
100 sysadm 1.2 ret = -3;
101     break;
102 sysadm 1.1 }
103 sysadm 1.8
104     master_list[0] = '\0';
105     while ((row2 = mysql_fetch_row(rs2)))
106 sysadm 1.1 {
107 sysadm 1.8 strncat(master_list, row2[0], sizeof(master_list) - 1 - strnlen(master_list, sizeof(master_list)));
108     strncat(master_list, " ", sizeof(master_list) - 1 - strnlen(master_list, sizeof(master_list)));
109 sysadm 1.1 }
110     mysql_free_result(rs2);
111 sysadm 1.23 rs2 = NULL;
112 sysadm 1.1
113 sysadm 1.50 p_section = section_list_find_by_sid(sid);
114 sysadm 1.1
115     if (p_section == NULL)
116     {
117 sysadm 1.8 p_section = section_list_create(sid, row[1], row[2], master_list);
118 sysadm 1.1 if (p_section == NULL)
119     {
120 sysadm 1.2 log_error("section_list_create() error: load new section sid = %d sname = %s\n", sid, row[1]);
121     ret = -4;
122 sysadm 1.1 break;
123     }
124    
125     // acquire rw lock
126     ret = section_list_rw_lock(p_section);
127     if (ret < 0)
128     {
129     break;
130     }
131     }
132     else
133     {
134     // acquire rw lock
135     ret = section_list_rw_lock(p_section);
136     if (ret < 0)
137     {
138     break;
139     }
140    
141 sysadm 1.51 if (section_list_update(p_section, row[1], row[2], master_list) < 0)
142     {
143     log_error("section_list_update(sid=%d) error\n", p_section->sid);
144     ret = -4;
145     break;
146     }
147 sysadm 1.1 }
148    
149     p_section->class_id = atoi(row[3]);
150     p_section->read_user_level = atoi(row[4]);
151     p_section->write_user_level = atoi(row[5]);
152     p_section->enable = (int8_t)atoi(row[6]);
153    
154 sysadm 1.34 // Update gen_ex menu set
155 sysadm 1.46 if (update_gen_ex && p_section->enable && atol(row[7] == NULL ? "0" : row[7]) > p_section->ex_menu_tm)
156 sysadm 1.34 {
157     snprintf(ex_menu_conf, sizeof(ex_menu_conf), "%s/%d", VAR_GEN_EX_MENU_DIR, p_section->sid);
158    
159 sysadm 1.38 ret = load_menu(&ex_menu_set_new, ex_menu_conf);
160 sysadm 1.34 if (ret < 0)
161     {
162 sysadm 1.38 unload_menu(&ex_menu_set_new);
163     log_error("load_menu(%s) error: %d\n", ex_menu_conf, ret);
164 sysadm 1.34 }
165     else
166     {
167 sysadm 1.38 if (p_section->ex_menu_tm > 0)
168 sysadm 1.34 {
169 sysadm 1.38 unload_menu(&(p_section->ex_menu_set));
170 sysadm 1.34 }
171    
172 sysadm 1.38 ex_menu_set_new.allow_exit = 1; // Allow exit menu
173     memcpy(&(p_section->ex_menu_set), &ex_menu_set_new, sizeof(ex_menu_set_new));
174 sysadm 1.34
175 sysadm 1.38 p_section->ex_menu_tm = atol(row[7]);
176 sysadm 1.34 #ifdef _DEBUG
177 sysadm 1.38 log_common("Loaded gen_ex_menu of section %d [%s]\n", p_section->sid, p_section->sname);
178 sysadm 1.34 #endif
179     }
180     }
181    
182 sysadm 1.1 // release rw lock
183     ret = section_list_rw_unlock(p_section);
184     if (ret < 0)
185     {
186     break;
187     }
188     }
189 sysadm 1.23
190     cleanup:
191 sysadm 1.31 mysql_free_result(rs2);
192 sysadm 1.1 mysql_free_result(rs);
193 sysadm 1.2 mysql_close(db);
194    
195     return ret;
196 sysadm 1.1 }
197 sysadm 1.3
198 sysadm 1.9 int append_articles_from_db(int32_t start_aid, int global_lock, int article_count_limit)
199 sysadm 1.3 {
200 sysadm 1.23 MYSQL *db = NULL;
201     MYSQL_RES *rs = NULL;
202 sysadm 1.3 MYSQL_ROW row;
203     char sql[SQL_BUFFER_LEN];
204     ARTICLE article;
205 sysadm 1.5 ARTICLE *p_topic;
206 sysadm 1.3 SECTION_LIST *p_section = NULL;
207     int32_t last_sid = 0;
208 sysadm 1.16 char sub_ip[IP_ADDR_LEN];
209 sysadm 1.9 int article_count = 0;
210 sysadm 1.3 int ret = 0;
211     int i;
212    
213     db = db_open();
214     if (db == NULL)
215     {
216     log_error("db_open() error: %s\n", mysql_error(db));
217 sysadm 1.23 ret = -1;
218     goto cleanup;
219 sysadm 1.3 }
220    
221     snprintf(sql, sizeof(sql),
222 sysadm 1.11 "SELECT bbs.AID, TID, SID, bbs.CID, UID, visible, excerption, ontop, `lock`, "
223     "transship, username, nickname, title, UNIX_TIMESTAMP(sub_dt) AS sub_dt, "
224 sysadm 1.16 "sub_ip, bbs_content.content "
225 sysadm 1.11 "FROM bbs INNER JOIN bbs_content ON bbs.CID = bbs_content.CID "
226     "WHERE bbs.AID >= %d ORDER BY bbs.AID LIMIT %d",
227 sysadm 1.9 start_aid, article_count_limit);
228 sysadm 1.3
229     if (mysql_query(db, sql) != 0)
230     {
231     log_error("Query article list error: %s\n", mysql_error(db));
232 sysadm 1.23 ret = -2;
233     goto cleanup;
234 sysadm 1.3 }
235 sysadm 1.11 if ((rs = mysql_use_result(db)) == NULL)
236 sysadm 1.3 {
237     log_error("Get article list data failed\n");
238 sysadm 1.23 ret = -2;
239     goto cleanup;
240 sysadm 1.3 }
241    
242     // acquire global lock
243 sysadm 1.23 if (global_lock && (ret = section_list_rw_lock(NULL)) < 0)
244 sysadm 1.3 {
245 sysadm 1.23 log_error("section_list_rw_lock(sid = 0) error\n");
246     goto cleanup;
247 sysadm 1.3 }
248    
249     while ((row = mysql_fetch_row(rs)))
250     {
251 sysadm 1.22 memset(&article, 0, sizeof(ARTICLE));
252 sysadm 1.3
253     // copy data of article
254     i = 0;
255    
256     article.aid = atoi(row[i++]);
257     article.tid = atoi(row[i++]);
258     article.sid = atoi(row[i++]);
259     article.cid = atoi(row[i++]);
260     article.uid = atoi(row[i++]);
261     article.visible = (int8_t)atoi(row[i++]);
262     article.excerption = (int8_t)atoi(row[i++]);
263     article.ontop = (int8_t)atoi(row[i++]);
264     article.lock = (int8_t)atoi(row[i++]);
265 sysadm 1.5 article.transship = (int8_t)atoi(row[i++]);
266 sysadm 1.3
267     strncpy(article.username, row[i++], sizeof(article.username) - 1);
268     article.username[sizeof(article.username) - 1] = '\0';
269     strncpy(article.nickname, row[i++], sizeof(article.nickname) - 1);
270     article.nickname[sizeof(article.nickname) - 1] = '\0';
271     strncpy(article.title, row[i++], sizeof(article.title) - 1);
272     article.title[sizeof(article.title) - 1] = '\0';
273    
274     article.sub_dt = atol(row[i++]);
275    
276 sysadm 1.16 strncpy(sub_ip, row[i++], sizeof(sub_ip) - 1);
277     sub_ip[sizeof(sub_ip) - 1] = '\0';
278     ip_mask(sub_ip, 1, '*');
279    
280 sysadm 1.3 // release lock of last section if different from current one
281     if (!global_lock && article.sid != last_sid && last_sid != 0)
282     {
283     if ((ret = section_list_rw_unlock(p_section)) < 0)
284     {
285 sysadm 1.11 log_error("section_list_rw_unlock(sid=%d) error\n", p_section->sid);
286 sysadm 1.3 break;
287     }
288     }
289    
290 sysadm 1.50 if ((p_section = section_list_find_by_sid(article.sid)) == NULL)
291 sysadm 1.3 {
292     log_error("section_list_find_by_sid(%d) error: unknown section, try reloading section config\n", article.sid);
293 sysadm 1.4 ret = ERR_UNKNOWN_SECTION; // Unknown section found
294 sysadm 1.3 break;
295     }
296    
297 sysadm 1.5 if (article.visible != 0 && article.tid != 0)
298     {
299     // Check if topic article is visible
300     p_topic = article_block_find_by_aid(article.tid);
301     if (p_topic == NULL || p_topic->visible == 0)
302     {
303     // log_error("Set article (aid = %d) as invisible due to invisible or non-existing topic head\n", article.aid);
304     article.tid = 0;
305     article.visible = 0;
306     }
307     }
308    
309 sysadm 1.3 // acquire lock of current section if different from last one
310     if (!global_lock && article.sid != last_sid)
311     {
312 sysadm 1.4 if ((ret = section_list_rw_lock(p_section)) < 0)
313 sysadm 1.3 {
314 sysadm 1.11 log_error("section_list_rw_lock(sid=0) error\n");
315 sysadm 1.3 break;
316     }
317     }
318    
319     // append article to section list
320     last_sid = article.sid;
321    
322     if (section_list_append_article(p_section, &article) < 0)
323     {
324 sysadm 1.11 log_error("section_list_append_article(sid=%d, aid=%d) error\n",
325 sysadm 1.3 p_section->sid, article.aid);
326     ret = -3;
327     break;
328     }
329 sysadm 1.9
330     article_count++;
331    
332 sysadm 1.16 if (article_cache_generate(VAR_ARTICLE_CACHE_DIR, &article, p_section, row[i++], sub_ip, 0) < 0)
333 sysadm 1.11 {
334     log_error("article_cache_generate(aid=%d, cid=%d) error\n", article.aid, article.cid);
335     ret = -4;
336     break;
337     }
338 sysadm 1.3 }
339    
340     // release lock of last section
341     if (!global_lock && last_sid != 0)
342     {
343     if ((ret = section_list_rw_unlock(p_section)) < 0)
344     {
345 sysadm 1.11 log_error("section_list_rw_unlock(sid=%d) error\n", p_section->sid);
346 sysadm 1.3 }
347     }
348    
349     // release global lock
350 sysadm 1.23 if (global_lock && (ret = section_list_rw_unlock(NULL)) < 0)
351 sysadm 1.3 {
352 sysadm 1.23 log_error("section_list_rw_unlock(sid=0) error\n");
353 sysadm 1.3 }
354    
355     cleanup:
356     mysql_free_result(rs);
357     mysql_close(db);
358    
359 sysadm 1.31 article_cache_cleanup();
360    
361 sysadm 1.9 return (ret < 0 ? ret : article_count);
362 sysadm 1.3 }
363 sysadm 1.4
364 sysadm 1.5 int set_last_article_op_log_from_db(void)
365     {
366 sysadm 1.23 MYSQL *db = NULL;
367     MYSQL_RES *rs = NULL;
368 sysadm 1.5 MYSQL_ROW row;
369     char sql[SQL_BUFFER_LEN];
370 sysadm 1.23 int ret = 0;
371 sysadm 1.5
372     db = db_open();
373     if (db == NULL)
374     {
375     log_error("db_open() error: %s\n", mysql_error(db));
376 sysadm 1.23 ret = -1;
377     goto cleanup;
378 sysadm 1.5 }
379    
380     snprintf(sql, sizeof(sql),
381     "SELECT MID FROM bbs_article_op ORDER BY MID DESC LIMIT 1");
382    
383     if (mysql_query(db, sql) != 0)
384     {
385     log_error("Query article op error: %s\n", mysql_error(db));
386 sysadm 1.23 ret = -2;
387     goto cleanup;
388 sysadm 1.5 }
389     if ((rs = mysql_store_result(db)) == NULL)
390     {
391     log_error("Get article op data failed\n");
392 sysadm 1.23 ret = -2;
393     goto cleanup;
394 sysadm 1.5 }
395    
396     if ((row = mysql_fetch_row(rs)))
397     {
398     last_article_op_log_mid = atoi(row[0]);
399     }
400    
401 sysadm 1.23 cleanup:
402 sysadm 1.5 mysql_free_result(rs);
403     mysql_close(db);
404    
405 sysadm 1.23 return (ret < 0 ? ret : last_article_op_log_mid);
406 sysadm 1.5 }
407    
408 sysadm 1.9 int apply_article_op_log_from_db(int op_count_limit)
409 sysadm 1.5 {
410 sysadm 1.23 MYSQL *db = NULL;
411     MYSQL_RES *rs = NULL, *rs2 = NULL;
412 sysadm 1.5 MYSQL_ROW row, row2;
413     char sql[SQL_BUFFER_LEN];
414     ARTICLE *p_article;
415     SECTION_LIST *p_section = NULL;
416     SECTION_LIST *p_section_dest;
417 sysadm 1.16 char sub_ip[IP_ADDR_LEN];
418 sysadm 1.5 int32_t last_sid = 0;
419     int32_t sid_dest;
420 sysadm 1.9 int op_count = 0;
421 sysadm 1.5 int ret = 0;
422    
423     db = db_open();
424     if (db == NULL)
425     {
426     log_error("db_open() error: %s\n", mysql_error(db));
427 sysadm 1.23 ret = -1;
428     goto cleanup;
429 sysadm 1.5 }
430    
431     snprintf(sql, sizeof(sql),
432     "SELECT MID, AID, type FROM bbs_article_op "
433 sysadm 1.9 "WHERE MID > %d AND type NOT IN ('A') "
434     "ORDER BY MID LIMIT %d",
435     last_article_op_log_mid, op_count_limit);
436 sysadm 1.5
437     if (mysql_query(db, sql) != 0)
438     {
439     log_error("Query article log error: %s\n", mysql_error(db));
440 sysadm 1.23 ret = -2;
441     goto cleanup;
442 sysadm 1.5 }
443     if ((rs = mysql_store_result(db)) == NULL)
444     {
445     log_error("Get article log data failed\n");
446 sysadm 1.23 ret = -2;
447     goto cleanup;
448 sysadm 1.5 }
449    
450     while ((row = mysql_fetch_row(rs)))
451     {
452     p_article = article_block_find_by_aid(atoi(row[1]));
453     if (p_article == NULL) // related article has not been appended yet
454     {
455     ret = -2;
456     break;
457     }
458    
459     // release lock of last section if different from current one
460     if (p_article->sid != last_sid && last_sid != 0)
461     {
462     if ((ret = section_list_rw_unlock(p_section)) < 0)
463     {
464     log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
465     break;
466     }
467     }
468    
469 sysadm 1.50 if ((p_section = section_list_find_by_sid(p_article->sid)) == NULL)
470 sysadm 1.5 {
471     log_error("section_list_find_by_sid(%d) error: unknown section, try reloading section config\n", p_article->sid);
472     ret = ERR_UNKNOWN_SECTION; // Unknown section found
473     break;
474     }
475    
476     // acquire lock of current section if different from last one
477     if (p_article->sid != last_sid)
478     {
479     if ((ret = section_list_rw_lock(p_section)) < 0)
480     {
481     log_error("section_list_rw_lock(sid = 0) error\n");
482     break;
483     }
484     }
485    
486     last_sid = p_article->sid;
487    
488     switch (row[2][0])
489     {
490     case 'A': // Add article
491     log_error("Operation type=A should not be found\n");
492     break;
493     case 'D': // Delete article
494     case 'X': // Delete article by Admin
495 sysadm 1.20 if (section_list_set_article_visible(p_section, atoi(row[1]), 0) < 0)
496 sysadm 1.5 {
497 sysadm 1.20 log_error("section_list_set_article_visible(sid=%d, aid=%d, visible=0) error\n", p_section->sid, atoi(row[1]));
498     }
499     if (section_list_calculate_page(p_section, atoi(row[1])) < 0)
500     {
501     log_error("section_list_calculate_page(aid=%d) error\n", atoi(row[1]));
502 sysadm 1.5 }
503     break;
504     case 'S': // Restore article
505 sysadm 1.20 if (section_list_set_article_visible(p_section, atoi(row[1]), 1) < 0)
506     {
507     log_error("section_list_set_article_visible(sid=%d, aid=%d, visible=1) error\n", p_section->sid, atoi(row[1]));
508     }
509     if (section_list_calculate_page(p_section, atoi(row[1])) < 0)
510     {
511     log_error("section_list_calculate_page(aid=%d) error\n", atoi(row[1]));
512     }
513 sysadm 1.5 break;
514     case 'L': // Lock article
515     p_article->lock = 1;
516     break;
517     case 'U': // Unlock article
518     p_article->lock = 0;
519     break;
520     case 'M': // Modify article
521 sysadm 1.9 snprintf(sql, sizeof(sql),
522 sysadm 1.16 "SELECT bbs.CID, sub_ip, bbs_content.content "
523 sysadm 1.11 "FROM bbs INNER JOIN bbs_content ON bbs.CID = bbs_content.CID "
524     "WHERE bbs.AID = %d",
525 sysadm 1.9 p_article->aid);
526    
527     if (mysql_query(db, sql) != 0)
528     {
529     log_error("Query article error: %s\n", mysql_error(db));
530     ret = -3;
531     break;
532     }
533 sysadm 1.12 if ((rs2 = mysql_use_result(db)) == NULL)
534 sysadm 1.9 {
535     log_error("Get article data failed\n");
536     ret = -3;
537     break;
538     }
539     if ((row2 = mysql_fetch_row(rs2)))
540     {
541     p_article->cid = atoi(row2[0]);
542 sysadm 1.11
543 sysadm 1.16 strncpy(sub_ip, row2[1], sizeof(sub_ip) - 1);
544     sub_ip[sizeof(sub_ip) - 1] = '\0';
545     ip_mask(sub_ip, 1, '*');
546    
547     if (article_cache_generate(VAR_ARTICLE_CACHE_DIR, p_article, p_section, row2[2], sub_ip, 0) < 0)
548 sysadm 1.11 {
549     log_error("article_cache_generate(aid=%d, cid=%d) error\n", p_article->aid, p_article->cid);
550     ret = -4;
551     }
552 sysadm 1.9 }
553     else
554     {
555     p_article->cid = 0;
556     ret = -4;
557     }
558     mysql_free_result(rs2);
559 sysadm 1.23 rs2 = NULL;
560 sysadm 1.21
561     p_article->excerption = 0; // Set excerption = 0 implicitly in case of rare condition
562 sysadm 1.5 break;
563     case 'T': // Move article
564     snprintf(sql, sizeof(sql),
565     "SELECT SID FROM bbs WHERE AID = %d",
566     p_article->aid);
567    
568     if (mysql_query(db, sql) != 0)
569     {
570     log_error("Query article error: %s\n", mysql_error(db));
571     ret = -3;
572     break;
573     }
574     if ((rs2 = mysql_store_result(db)) == NULL)
575     {
576     log_error("Get article data failed\n");
577     ret = -3;
578     break;
579     }
580     if ((row2 = mysql_fetch_row(rs2)))
581     {
582     sid_dest = atoi(row2[0]);
583     }
584     else
585     {
586     sid_dest = 0;
587     ret = -4;
588     }
589     mysql_free_result(rs2);
590 sysadm 1.23 rs2 = NULL;
591 sysadm 1.5
592     if (sid_dest > 0 && sid_dest != p_article->sid)
593     {
594 sysadm 1.50 p_section_dest = section_list_find_by_sid(sid_dest);
595 sysadm 1.5 if (p_section_dest == NULL)
596     {
597     ret = ERR_UNKNOWN_SECTION;
598     break;
599     }
600 sysadm 1.6 // acquire lock of dest section
601     if ((ret = section_list_rw_lock(p_section_dest)) < 0)
602     {
603     log_error("section_list_rw_lock(sid = %d) error\n", p_section_dest);
604     break;
605     }
606 sysadm 1.5 // Move topic
607     if ((ret = section_list_move_topic(p_section, p_section_dest, p_article->aid)) < 0)
608     {
609 sysadm 1.6 log_error("section_list_move_topic(src_sid=%d, dest_sid=%d, aid=%d) error (%d), retry in the next loop\n",
610     p_section->sid, p_section_dest->sid, p_article->aid, ret);
611     }
612     // release lock of dest section
613     if (section_list_rw_unlock(p_section_dest) < 0)
614     {
615     log_error("section_list_rw_unlock(sid = %d) error\n", p_section_dest);
616     ret = -1;
617 sysadm 1.5 }
618     }
619     break;
620     case 'E': // Set article as excerption
621     p_article->excerption = 1;
622     break;
623     case 'O': // Unset article as excerption
624     p_article->excerption = 0;
625     break;
626     case 'F': // Set article on top
627     case 'V': // Unset article on top
628 sysadm 1.32 p_article->ontop = (row[2][0] == 'F' ? 1 : 0);
629     if (section_list_update_article_ontop(p_section, p_article) < 0)
630     {
631     log_error("section_list_update_article_ontop(sid=%d, aid=%d) error\n",
632     p_section->sid, p_article->aid);
633     }
634 sysadm 1.5 break;
635     case 'Z': // Set article as trnasship
636     p_article->transship = 1;
637     break;
638     default:
639     // log_error("Operation type=%s unknown, mid=%s\n", row[2], row[0]);
640     break;
641     }
642    
643     if (ret < 0)
644     {
645     break;
646     }
647    
648     // Update MID with last successfully proceeded article_op_log
649     last_article_op_log_mid = atoi(row[0]);
650 sysadm 1.9
651     op_count++;
652 sysadm 1.5 }
653    
654     // release lock of last section
655     if (last_sid != 0)
656     {
657     if ((ret = section_list_rw_unlock(p_section)) < 0)
658     {
659     log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
660     }
661     }
662    
663 sysadm 1.23 cleanup:
664     mysql_free_result(rs2);
665 sysadm 1.5 mysql_free_result(rs);
666     mysql_close(db);
667    
668 sysadm 1.9 return (ret < 0 ? ret : op_count);
669 sysadm 1.5 }
670    
671 sysadm 1.39 static void section_list_ex_menu_set_cleanup(void)
672     {
673     int i;
674    
675     for (i = 0; i < p_section_list_pool->section_count; i++)
676     {
677     if (p_section_list_pool->sections[i].ex_menu_tm > 0)
678     {
679     unload_menu(&(p_section_list_pool->sections[i].ex_menu_set));
680     }
681     }
682     }
683    
684 sysadm 1.4 int section_list_loader_launch(void)
685     {
686 sysadm 1.34 struct sigaction act = {0};
687 sysadm 1.4 int pid;
688     int ret;
689     int32_t last_aid;
690     int article_count;
691     int load_count;
692 sysadm 1.5 int last_mid;
693 sysadm 1.52 time_t tm_section_list_reload = 0;
694 sysadm 1.54 time_t tm_user_list_reload = time(NULL);
695     time_t tm_user_online_list_reload = time(NULL);
696 sysadm 1.4
697     if (section_list_loader_pid != 0)
698     {
699     log_error("section_list_loader already running, pid = %d\n", section_list_loader_pid);
700     return -2;
701     }
702    
703     pid = fork();
704    
705     if (pid > 0) // Parent process
706     {
707     SYS_child_process_count++;
708     section_list_loader_pid = pid;
709 sysadm 1.18 log_common("Section list loader process (pid = %d) start\n", pid);
710 sysadm 1.4 return 0;
711     }
712     else if (pid < 0) // Error
713     {
714     log_error("fork() error (%d)\n", errno);
715     return -1;
716     }
717    
718     // Child process
719     SYS_child_process_count = 0;
720    
721     // Detach menu in shared memory
722 sysadm 1.36 detach_menu_shm(&bbs_menu);
723 sysadm 1.49 detach_menu_shm(&top10_menu);
724 sysadm 1.4
725 sysadm 1.34 // Set signal handler
726     act.sa_handler = SIG_DFL;
727 sysadm 1.38 if (sigaction(SIGHUP, &act, NULL) == -1)
728     {
729     log_error("set signal action of SIGHUP error: %d\n", errno);
730     }
731     act.sa_handler = SIG_DFL;
732 sysadm 1.34 if (sigaction(SIGCHLD, &act, NULL) == -1)
733     {
734     log_error("set signal action of SIGCHLD error: %d\n", errno);
735     }
736    
737 sysadm 1.4 // Do section data loader periodically
738     while (!SYS_server_exit)
739     {
740 sysadm 1.52 tm_section_list_reload = time(NULL);
741    
742 sysadm 1.38 if (SYS_conf_reload)
743 sysadm 1.4 {
744 sysadm 1.38 SYS_conf_reload = 0;
745 sysadm 1.4
746     // Load section config
747 sysadm 1.38 if (load_section_config_from_db(0) < 0)
748 sysadm 1.4 {
749 sysadm 1.38 log_error("load_section_config_from_db(0) error\n");
750 sysadm 1.4 }
751     else
752     {
753 sysadm 1.27 log_common("Reload section config successfully\n");
754 sysadm 1.4 }
755     }
756    
757     // Load section articles
758     article_count = article_block_article_count();
759    
760 sysadm 1.9 do
761 sysadm 1.4 {
762 sysadm 1.9 last_aid = article_block_last_aid();
763 sysadm 1.4
764 sysadm 1.9 if ((ret = append_articles_from_db(last_aid + 1, 0, LOAD_ARTICLE_COUNT_LIMIT)) < 0)
765 sysadm 1.4 {
766 sysadm 1.9 log_error("append_articles_from_db(%d, 0, %d) error\n", last_aid + 1, LOAD_ARTICLE_COUNT_LIMIT);
767    
768     if (ret == ERR_UNKNOWN_SECTION)
769     {
770 sysadm 1.38 SYS_conf_reload = 1; // Force reload section_list
771 sysadm 1.9 }
772 sysadm 1.4 }
773 sysadm 1.9 } while (ret == LOAD_ARTICLE_COUNT_LIMIT);
774 sysadm 1.5
775     load_count = article_block_article_count() - article_count;
776     if (load_count > 0)
777     {
778 sysadm 1.17 log_common("Incrementally load %d articles, last_aid = %d\n", load_count, article_block_last_aid());
779 sysadm 1.5 }
780    
781 sysadm 1.38 if (SYS_conf_reload)
782 sysadm 1.5 {
783     continue;
784     }
785    
786     // Load article_op log
787     last_mid = last_article_op_log_mid;
788    
789 sysadm 1.9 do
790 sysadm 1.4 {
791 sysadm 1.9 if ((ret = apply_article_op_log_from_db(LOAD_ARTICLE_COUNT_LIMIT)) < 0)
792     {
793     log_error("apply_article_op_log_from_db() error\n");
794 sysadm 1.4
795 sysadm 1.9 if (ret == ERR_UNKNOWN_SECTION)
796     {
797 sysadm 1.38 SYS_conf_reload = 1; // Force reload section_list
798 sysadm 1.9 }
799 sysadm 1.4 }
800 sysadm 1.9 } while (ret == LOAD_ARTICLE_COUNT_LIMIT);
801 sysadm 1.4
802 sysadm 1.5 if (last_article_op_log_mid > last_mid)
803     {
804 sysadm 1.17 log_common("Proceeded %d article logs, last_mid = %d\n", last_article_op_log_mid - last_mid, last_article_op_log_mid);
805 sysadm 1.5 }
806    
807 sysadm 1.52 // Reload user list
808     if (time(NULL) - tm_user_list_reload >= BBS_user_list_load_interval)
809 sysadm 1.5 {
810 sysadm 1.53 if (user_list_pool_reload(0) < 0)
811 sysadm 1.52 {
812 sysadm 1.53 log_error("user_list_pool_reload(all_user) error\n");
813 sysadm 1.52 }
814     tm_user_list_reload = time(NULL);
815 sysadm 1.5 }
816    
817 sysadm 1.53 // Reload user online list
818     if (time(NULL) - tm_user_online_list_reload >= BBS_user_online_list_load_interval)
819     {
820     if (user_list_pool_reload(1) < 0)
821     {
822     log_error("user_list_pool_reload(online_user) error\n");
823     }
824     tm_user_online_list_reload = time(NULL);
825     }
826    
827 sysadm 1.52 // Wait for BBS_section_list_load_interval seconds
828     while (!SYS_server_exit && time(NULL) - tm_section_list_reload < BBS_section_list_load_interval)
829 sysadm 1.5 {
830     sleep(1);
831 sysadm 1.4 }
832     }
833    
834     // Child process exit
835    
836 sysadm 1.31 article_cache_cleanup();
837    
838 sysadm 1.34 // gen_ex_menu cleanup
839     section_list_ex_menu_set_cleanup();
840 sysadm 1.37
841 sysadm 1.4 // Detach data pools shm
842     detach_section_list_shm();
843     detach_article_block_shm();
844     detach_trie_dict_shm();
845 sysadm 1.52 detach_user_list_pool_shm();
846 sysadm 1.4
847 sysadm 1.17 log_common("Section list loader process exit normally\n");
848 sysadm 1.4 log_end();
849    
850     section_list_loader_pid = 0;
851    
852     _exit(0);
853    
854     return 0;
855     }
856    
857 sysadm 1.33 int query_section_articles(SECTION_LIST *p_section, int page_id, ARTICLE *p_articles[],
858     int *p_article_count, int *p_page_count, int *p_ontop_start_offset)
859 sysadm 1.7 {
860     ARTICLE *p_article;
861     ARTICLE *p_next_page_first_article;
862     int ret = 0;
863 sysadm 1.32 int i;
864 sysadm 1.7
865 sysadm 1.33 if (p_section == NULL || p_articles == NULL || p_article_count == NULL || p_page_count == NULL || p_ontop_start_offset == NULL)
866 sysadm 1.7 {
867 sysadm 1.34 log_error("NULL pointer error\n");
868 sysadm 1.7 return -1;
869     }
870    
871     // acquire lock of section
872     if ((ret = section_list_rd_lock(p_section)) < 0)
873     {
874     log_error("section_list_rd_lock(sid = %d) error\n", p_section->sid);
875     return -2;
876     }
877    
878 sysadm 1.32 *p_page_count = section_list_page_count_with_ontop(p_section);
879     *p_article_count = 0;
880 sysadm 1.33 *p_ontop_start_offset = BBS_article_limit_per_page;
881 sysadm 1.10
882 sysadm 1.9 if (p_section->visible_article_count == 0)
883     {
884 sysadm 1.32 // empty section
885 sysadm 1.9 }
886 sysadm 1.32 else if (page_id < 0 || page_id >= *p_page_count)
887 sysadm 1.7 {
888 sysadm 1.32 log_error("Invalid page_id=%d, not in range [0, %d)\n", page_id, *p_page_count);
889 sysadm 1.7 ret = -3;
890     }
891     else
892     {
893     ret = page_id;
894    
895 sysadm 1.32 if (page_id <= p_section->page_count - 1)
896 sysadm 1.7 {
897 sysadm 1.32 p_article = p_section->p_page_first_article[page_id];
898     p_next_page_first_article =
899     (page_id == p_section->page_count - 1 ? p_section->p_article_head : p_section->p_page_first_article[page_id + 1]);
900    
901     do
902     {
903     if (p_article->visible)
904     {
905     p_articles[*p_article_count] = p_article;
906     (*p_article_count)++;
907     }
908     p_article = p_article->p_next;
909     } while (p_article != p_next_page_first_article && (*p_article_count) <= BBS_article_limit_per_page);
910    
911     if (*p_article_count != (page_id < p_section->page_count - 1 ? BBS_article_limit_per_page : p_section->last_page_visible_article_count))
912 sysadm 1.7 {
913 sysadm 1.32 log_error("Inconsistent visible article count %d detected in section %d page %d\n", *p_article_count, p_section->sid, page_id);
914 sysadm 1.7 }
915 sysadm 1.32 }
916 sysadm 1.8
917 sysadm 1.33 *p_ontop_start_offset = *p_article_count;
918    
919 sysadm 1.32 // Append ontop articles
920     if (page_id >= p_section->page_count - 1)
921 sysadm 1.8 {
922 sysadm 1.32 i = (page_id == p_section->page_count - 1
923     ? 0
924     : (page_id - p_section->page_count + 1) * BBS_article_limit_per_page - p_section->last_page_visible_article_count);
925     while (*p_article_count < BBS_article_limit_per_page && i < p_section->ontop_article_count)
926     {
927     p_articles[(*p_article_count)++] = p_section->p_ontop_articles[i++];
928     }
929 sysadm 1.8 }
930 sysadm 1.7 }
931    
932     // release lock of section
933 sysadm 1.8 if (section_list_rd_unlock(p_section) < 0)
934 sysadm 1.7 {
935     log_error("section_list_rd_unlock(sid = %d) error\n", p_section->sid);
936     ret = -2;
937     }
938    
939     return ret;
940     }
941 sysadm 1.14
942 sysadm 1.24 int locate_article_in_section(SECTION_LIST *p_section, const ARTICLE *p_article_cur, int direction, int step,
943 sysadm 1.15 int *p_page_id, int *p_visible_offset, int *p_article_count)
944 sysadm 1.14 {
945 sysadm 1.15 const ARTICLE *p_article = NULL;
946 sysadm 1.40 const ARTICLE *p_article_last = NULL;
947 sysadm 1.15 ARTICLE *p_tmp;
948 sysadm 1.14 int32_t aid = 0;
949 sysadm 1.24 int page_id = 0;
950     int offset = 0;
951 sysadm 1.14 int ret = 0;
952 sysadm 1.15 int i;
953 sysadm 1.14
954 sysadm 1.15 if (p_section == NULL || p_article_cur == NULL || p_page_id == NULL || p_visible_offset == NULL || p_article_count == NULL)
955 sysadm 1.14 {
956 sysadm 1.34 log_error("NULL pointer error\n");
957 sysadm 1.14 return -1;
958     }
959    
960     // acquire lock of section
961     if ((ret = section_list_rd_lock(p_section)) < 0)
962     {
963     log_error("section_list_rd_lock(sid = %d) error\n", p_section->sid);
964     return -2;
965     }
966    
967     if (direction == 0)
968     {
969     aid = p_article_cur->aid;
970     }
971     else if (direction == 1)
972     {
973 sysadm 1.43 for (p_article_last = p_article_cur, p_article = p_article_cur->p_topic_next;
974     step > 0 && p_article->aid > p_article_cur->aid;
975 sysadm 1.40 p_article = p_article->p_topic_next)
976 sysadm 1.14 {
977 sysadm 1.24 if (p_article->visible)
978     {
979     step--;
980 sysadm 1.40 p_article_last = p_article;
981 sysadm 1.24 }
982     }
983 sysadm 1.43 p_article = p_article_last;
984 sysadm 1.15
985 sysadm 1.25 aid = (p_article->aid > p_article_cur->aid && p_article->visible ? p_article->aid : 0);
986 sysadm 1.14 }
987     else if (direction == -1)
988     {
989 sysadm 1.43 for (p_article_last = p_article_cur, p_article = p_article_cur->p_topic_prior;
990     step > 0 && p_article->aid < p_article_cur->aid;
991 sysadm 1.40 p_article = p_article->p_topic_prior)
992 sysadm 1.14 {
993 sysadm 1.24 if (p_article->visible)
994     {
995     step--;
996 sysadm 1.40 p_article_last = p_article;
997 sysadm 1.24 }
998     }
999 sysadm 1.43 p_article = p_article_last;
1000 sysadm 1.15
1001 sysadm 1.25 aid = (p_article->aid < p_article_cur->aid && p_article->visible ? p_article->aid : 0);
1002 sysadm 1.14 }
1003    
1004 sysadm 1.15 p_article = NULL;
1005    
1006 sysadm 1.14 if (aid > 0)
1007     {
1008 sysadm 1.15 p_article = section_list_find_article_with_offset(p_section, aid, &page_id, &offset, &p_tmp);
1009 sysadm 1.14 if (p_article != NULL)
1010     {
1011 sysadm 1.15 *p_article_count = (page_id == p_section->page_count - 1 ? p_section->last_page_visible_article_count : BBS_article_limit_per_page);
1012    
1013     p_article = p_section->p_page_first_article[page_id];
1014 sysadm 1.25 for (i = 0; i < *p_article_count && p_article != NULL;)
1015 sysadm 1.15 {
1016     if (p_article->visible)
1017     {
1018     if (p_article->aid == aid)
1019     {
1020     *p_page_id = page_id;
1021     *p_visible_offset = i;
1022     break;
1023     }
1024     i++;
1025     if (i >= *p_article_count)
1026     {
1027     log_error("Visible article (aid=%d) not found in page %d\n", aid, page_id);
1028     p_article = NULL;
1029 sysadm 1.25 break;
1030 sysadm 1.15 }
1031     }
1032     p_article = p_article->p_next;
1033     }
1034 sysadm 1.32
1035     // Include ontop articles
1036     *p_article_count = section_list_page_article_count_with_ontop(p_section, page_id);
1037 sysadm 1.14 }
1038     }
1039    
1040     // release lock of section
1041     if (section_list_rd_unlock(p_section) < 0)
1042     {
1043     log_error("section_list_rd_unlock(sid = %d) error\n", p_section->sid);
1044     ret = -2;
1045     }
1046    
1047     return (ret < 0 ? ret : (p_article == NULL ? 0 : 1));
1048     }
1049 sysadm 1.34
1050 sysadm 1.44 int scan_unread_article_in_section(SECTION_LIST *p_section, const ARTICLE *p_article_cur, const ARTICLE **pp_article_unread)
1051     {
1052     ARTICLE *p_article;
1053     int ret = 0;
1054    
1055     if (p_section == NULL || p_article_cur == NULL || pp_article_unread == NULL)
1056     {
1057     log_error("NULL pointer error\n");
1058     return -1;
1059     }
1060    
1061     if (p_article_cur->sid != p_section->sid)
1062     {
1063     log_error("Inconsistent SID\n");
1064     return -1;
1065     }
1066    
1067     // acquire lock of section
1068     if ((ret = section_list_rd_lock(p_section)) < 0)
1069     {
1070     log_error("section_list_rd_lock(sid = %d) error\n", p_section->sid);
1071     return -2;
1072     }
1073    
1074     *pp_article_unread = NULL;
1075    
1076     for (p_article = p_article_cur->p_next; p_article != NULL && p_article != p_article_cur; p_article = p_article->p_next)
1077     {
1078 sysadm 1.45 if (p_article->visible && p_article->uid != BBS_priv.uid && !article_view_log_is_viewed(p_article->aid, &BBS_article_view_log))
1079 sysadm 1.44 {
1080     *pp_article_unread = p_article;
1081     break;
1082     }
1083     }
1084    
1085     // release lock of section
1086     if (section_list_rd_unlock(p_section) < 0)
1087     {
1088     log_error("section_list_rd_unlock(sid = %d) error\n", p_section->sid);
1089     return -2;
1090     }
1091    
1092     return (p_article != NULL && p_article != p_article_cur ? 1 : 0);
1093     }
1094    
1095 sysadm 1.34 int get_section_ex_menu_set(SECTION_LIST *p_section, MENU_SET *p_ex_menu_set)
1096     {
1097     int ret = 0;
1098    
1099     if (p_section == NULL || p_ex_menu_set == NULL)
1100     {
1101     log_error("NULL pointer error\n");
1102     return -1;
1103     }
1104    
1105     // acquire lock of section
1106     if ((ret = section_list_rd_lock(p_section)) < 0)
1107     {
1108     log_error("section_list_rd_lock(sid = %d) error\n", p_section->sid);
1109     return -2;
1110     }
1111    
1112     memcpy(p_ex_menu_set, &(p_section->ex_menu_set), sizeof(p_section->ex_menu_set));
1113    
1114     // release lock of section
1115     if (section_list_rd_unlock(p_section) < 0)
1116     {
1117     log_error("section_list_rd_unlock(sid = %d) error\n", p_section->sid);
1118     ret = -2;
1119     }
1120    
1121     return ret;
1122     }
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