/[LeafOK_CVS]/lbbs/src/section_list_loader.c
ViewVC logotype

Annotation of /lbbs/src/section_list_loader.c

Parent Directory Parent Directory | Revision Log Revision Log

Revision 1.41 - (hide annotations)
Tue Sep 30 13:27:28 2025 UTC (5 months, 2 weeks ago) by sysadm
Branch: MAIN
Changes since 1.40: +14 -0 lines
Content type: text/x-csrc 
Rewrite title with "Re: Re: " prefix into "Re: ... "
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 1.19 #include "bbs.h"
19 sysadm 1.30 #include "database.h"
20 sysadm 1.39 #include "ip_mask.h"
21 sysadm 1.1 #include "log.h"
22 sysadm 1.4 #include "menu.h"
23 sysadm 1.30 #include "section_list_loader.h"
24 sysadm 1.1 #include <errno.h>
25 sysadm 1.4 #include <signal.h>
26 sysadm 1.29 #include <stdio.h>
27 sysadm 1.1 #include <stdlib.h>
28 sysadm 1.22 #include <string.h>
29 sysadm 1.4 #include <unistd.h>
30    
31 sysadm 1.5 int section_list_loader_pid;
32     int last_article_op_log_mid;
33 sysadm 1.1
34 sysadm 1.38 int load_section_config_from_db(int update_gen_ex)
35 sysadm 1.1 {
36 sysadm 1.23 MYSQL *db = NULL;
37     MYSQL_RES *rs = NULL, *rs2 = NULL;
38 sysadm 1.1 MYSQL_ROW row, row2;
39     char sql[SQL_BUFFER_LEN];
40     int32_t sid;
41 sysadm 1.8 char master_list[(BBS_username_max_len + 1) * 3 + 1];
42 sysadm 1.1 SECTION_LIST *p_section;
43 sysadm 1.34 char ex_menu_conf[FILE_PATH_LEN];
44     MENU_SET ex_menu_set_new;
45 sysadm 1.23 int ret = 0;
46 sysadm 1.1
47 sysadm 1.2 db = db_open();
48     if (db == NULL)
49     {
50     log_error("db_open() error: %s\n", mysql_error(db));
51 sysadm 1.23 ret = -1;
52     goto cleanup;
53 sysadm 1.2 }
54    
55 sysadm 1.1 snprintf(sql, sizeof(sql),
56 sysadm 1.2 "SELECT section_config.SID, sname, section_config.title, section_config.CID, "
57 sysadm 1.34 "read_user_level, write_user_level, section_config.enable * section_class.enable AS enable, "
58     "UNIX_TIMESTAMP(ex_menu_tm) AS ex_menu_tm "
59 sysadm 1.2 "FROM section_config INNER JOIN section_class ON section_config.CID = section_class.CID "
60 sysadm 1.1 "ORDER BY section_config.SID");
61    
62     if (mysql_query(db, sql) != 0)
63     {
64     log_error("Query section_list error: %s\n", mysql_error(db));
65 sysadm 1.23 ret = -2;
66     goto cleanup;
67 sysadm 1.1 }
68     if ((rs = mysql_store_result(db)) == NULL)
69     {
70     log_error("Get section_list data failed\n");
71 sysadm 1.23 ret = -2;
72     goto cleanup;
73 sysadm 1.1 }
74 sysadm 1.2
75     ret = 0;
76 sysadm 1.1 while ((row = mysql_fetch_row(rs)))
77     {
78     sid = atoi(row[0]);
79    
80     // Query section master
81     snprintf(sql, sizeof(sql),
82     "SELECT username FROM section_master "
83     "INNER JOIN user_list ON section_master.UID = user_list.UID "
84     "WHERE SID = %d AND section_master.enable AND (NOW() BETWEEN begin_dt AND end_dt) "
85 sysadm 1.8 "ORDER BY major DESC, begin_dt ASC LIMIT 3",
86 sysadm 1.1 sid);
87    
88     if (mysql_query(db, sql) != 0)
89     {
90     log_error("Query section_master error: %s\n", mysql_error(db));
91 sysadm 1.2 ret = -3;
92     break;
93 sysadm 1.1 }
94     if ((rs2 = mysql_store_result(db)) == NULL)
95     {
96     log_error("Get section_master data failed\n");
97 sysadm 1.2 ret = -3;
98     break;
99 sysadm 1.1 }
100 sysadm 1.8
101     master_list[0] = '\0';
102     while ((row2 = mysql_fetch_row(rs2)))
103 sysadm 1.1 {
104 sysadm 1.8 strncat(master_list, row2[0], sizeof(master_list) - 1 - strnlen(master_list, sizeof(master_list)));
105     strncat(master_list, " ", sizeof(master_list) - 1 - strnlen(master_list, sizeof(master_list)));
106 sysadm 1.1 }
107     mysql_free_result(rs2);
108 sysadm 1.23 rs2 = NULL;
109 sysadm 1.1
110     p_section = section_list_find_by_sid(sid);
111    
112     if (p_section == NULL)
113     {
114 sysadm 1.8 p_section = section_list_create(sid, row[1], row[2], master_list);
115 sysadm 1.1 if (p_section == NULL)
116     {
117 sysadm 1.2 log_error("section_list_create() error: load new section sid = %d sname = %s\n", sid, row[1]);
118     ret = -4;
119 sysadm 1.1 break;
120     }
121    
122     // acquire rw lock
123     ret = section_list_rw_lock(p_section);
124     if (ret < 0)
125     {
126     break;
127     }
128     }
129     else
130     {
131     // acquire rw lock
132     ret = section_list_rw_lock(p_section);
133     if (ret < 0)
134     {
135     break;
136     }
137    
138 sysadm 1.35 strncpy(p_section->sname, row[1], sizeof(p_section->sname) - 1);
139 sysadm 1.1 p_section->sname[sizeof(p_section->sname) - 1] = '\0';
140 sysadm 1.35 strncpy(p_section->stitle, row[2], sizeof(p_section->stitle) - 1);
141 sysadm 1.1 p_section->stitle[sizeof(p_section->stitle) - 1] = '\0';
142 sysadm 1.8 strncpy(p_section->master_list, master_list, sizeof(p_section->master_list) - 1);
143     p_section->master_list[sizeof(p_section->master_list) - 1] = '\0';
144 sysadm 1.1 }
145    
146     p_section->class_id = atoi(row[3]);
147     p_section->read_user_level = atoi(row[4]);
148     p_section->write_user_level = atoi(row[5]);
149     p_section->enable = (int8_t)atoi(row[6]);
150    
151 sysadm 1.34 // Update gen_ex menu set
152 sysadm 1.38 if (update_gen_ex && p_section->enable && atoi(row[7]) > p_section->ex_menu_tm)
153 sysadm 1.34 {
154     snprintf(ex_menu_conf, sizeof(ex_menu_conf), "%s/%d", VAR_GEN_EX_MENU_DIR, p_section->sid);
155    
156 sysadm 1.38 ret = load_menu(&ex_menu_set_new, ex_menu_conf);
157 sysadm 1.34 if (ret < 0)
158     {
159 sysadm 1.38 unload_menu(&ex_menu_set_new);
160     log_error("load_menu(%s) error: %d\n", ex_menu_conf, ret);
161 sysadm 1.34 }
162     else
163     {
164 sysadm 1.38 if (p_section->ex_menu_tm > 0)
165 sysadm 1.34 {
166 sysadm 1.38 unload_menu(&(p_section->ex_menu_set));
167 sysadm 1.34 }
168    
169 sysadm 1.38 ex_menu_set_new.allow_exit = 1; // Allow exit menu
170     memcpy(&(p_section->ex_menu_set), &ex_menu_set_new, sizeof(ex_menu_set_new));
171 sysadm 1.34
172 sysadm 1.38 p_section->ex_menu_tm = atol(row[7]);
173 sysadm 1.34 #ifdef _DEBUG
174 sysadm 1.38 log_common("Loaded gen_ex_menu of section %d [%s]\n", p_section->sid, p_section->sname);
175 sysadm 1.34 #endif
176     }
177     }
178    
179 sysadm 1.1 // release rw lock
180     ret = section_list_rw_unlock(p_section);
181     if (ret < 0)
182     {
183     break;
184     }
185     }
186 sysadm 1.23
187     cleanup:
188 sysadm 1.31 mysql_free_result(rs2);
189 sysadm 1.1 mysql_free_result(rs);
190 sysadm 1.2 mysql_close(db);
191    
192     return ret;
193 sysadm 1.1 }
194 sysadm 1.3
195 sysadm 1.9 int append_articles_from_db(int32_t start_aid, int global_lock, int article_count_limit)
196 sysadm 1.3 {
197 sysadm 1.23 MYSQL *db = NULL;
198     MYSQL_RES *rs = NULL;
199 sysadm 1.3 MYSQL_ROW row;
200     char sql[SQL_BUFFER_LEN];
201     ARTICLE article;
202 sysadm 1.5 ARTICLE *p_topic;
203 sysadm 1.3 SECTION_LIST *p_section = NULL;
204     int32_t last_sid = 0;
205 sysadm 1.16 char sub_ip[IP_ADDR_LEN];
206 sysadm 1.9 int article_count = 0;
207 sysadm 1.3 int ret = 0;
208     int i;
209 sysadm 1.41 size_t j;
210 sysadm 1.3
211     db = db_open();
212     if (db == NULL)
213     {
214     log_error("db_open() error: %s\n", mysql_error(db));
215 sysadm 1.23 ret = -1;
216     goto cleanup;
217 sysadm 1.3 }
218    
219     snprintf(sql, sizeof(sql),
220 sysadm 1.11 "SELECT bbs.AID, TID, SID, bbs.CID, UID, visible, excerption, ontop, `lock`, "
221     "transship, username, nickname, title, UNIX_TIMESTAMP(sub_dt) AS sub_dt, "
222 sysadm 1.16 "sub_ip, bbs_content.content "
223 sysadm 1.11 "FROM bbs INNER JOIN bbs_content ON bbs.CID = bbs_content.CID "
224     "WHERE bbs.AID >= %d ORDER BY bbs.AID LIMIT %d",
225 sysadm 1.9 start_aid, article_count_limit);
226 sysadm 1.3
227     if (mysql_query(db, sql) != 0)
228     {
229     log_error("Query article list error: %s\n", mysql_error(db));
230 sysadm 1.23 ret = -2;
231     goto cleanup;
232 sysadm 1.3 }
233 sysadm 1.11 if ((rs = mysql_use_result(db)) == NULL)
234 sysadm 1.3 {
235     log_error("Get article list data failed\n");
236 sysadm 1.23 ret = -2;
237     goto cleanup;
238 sysadm 1.3 }
239    
240     // acquire global lock
241 sysadm 1.23 if (global_lock && (ret = section_list_rw_lock(NULL)) < 0)
242 sysadm 1.3 {
243 sysadm 1.23 log_error("section_list_rw_lock(sid = 0) error\n");
244     goto cleanup;
245 sysadm 1.3 }
246    
247     while ((row = mysql_fetch_row(rs)))
248     {
249 sysadm 1.22 memset(&article, 0, sizeof(ARTICLE));
250 sysadm 1.3
251     // copy data of article
252     i = 0;
253    
254     article.aid = atoi(row[i++]);
255     article.tid = atoi(row[i++]);
256     article.sid = atoi(row[i++]);
257     article.cid = atoi(row[i++]);
258     article.uid = atoi(row[i++]);
259     article.visible = (int8_t)atoi(row[i++]);
260     article.excerption = (int8_t)atoi(row[i++]);
261     article.ontop = (int8_t)atoi(row[i++]);
262     article.lock = (int8_t)atoi(row[i++]);
263 sysadm 1.5 article.transship = (int8_t)atoi(row[i++]);
264 sysadm 1.3
265     strncpy(article.username, row[i++], sizeof(article.username) - 1);
266     article.username[sizeof(article.username) - 1] = '\0';
267     strncpy(article.nickname, row[i++], sizeof(article.nickname) - 1);
268     article.nickname[sizeof(article.nickname) - 1] = '\0';
269     strncpy(article.title, row[i++], sizeof(article.title) - 1);
270     article.title[sizeof(article.title) - 1] = '\0';
271    
272 sysadm 1.41 // Rewrite title with "Re: Re: " prefix into "Re: ... "
273     if (article.tid != 0)
274     {
275     for (j = 0; strncmp(article.title + j, "Re: ", strlen("Re: ")) == 0; j += strlen("Re: "))
276     ;
277     if (j >= strlen("Re: Re: "))
278     {
279     memcpy(article.title, "Re: ... ", strlen("Re: ... "));
280     memmove(article.title + strlen("Re: ... "), article.title + j, sizeof(article.title) - 1 - j);
281     article.title[sizeof(article.title) - 1 - j] = '\0';
282     }
283     }
284    
285 sysadm 1.3 article.sub_dt = atol(row[i++]);
286    
287 sysadm 1.16 strncpy(sub_ip, row[i++], sizeof(sub_ip) - 1);
288     sub_ip[sizeof(sub_ip) - 1] = '\0';
289     ip_mask(sub_ip, 1, '*');
290    
291 sysadm 1.3 // release lock of last section if different from current one
292     if (!global_lock && article.sid != last_sid && last_sid != 0)
293     {
294     if ((ret = section_list_rw_unlock(p_section)) < 0)
295     {
296 sysadm 1.11 log_error("section_list_rw_unlock(sid=%d) error\n", p_section->sid);
297 sysadm 1.3 break;
298     }
299     }
300    
301     if ((p_section = section_list_find_by_sid(article.sid)) == NULL)
302     {
303     log_error("section_list_find_by_sid(%d) error: unknown section, try reloading section config\n", article.sid);
304 sysadm 1.4 ret = ERR_UNKNOWN_SECTION; // Unknown section found
305 sysadm 1.3 break;
306     }
307    
308 sysadm 1.5 if (article.visible != 0 && article.tid != 0)
309     {
310     // Check if topic article is visible
311     p_topic = article_block_find_by_aid(article.tid);
312     if (p_topic == NULL || p_topic->visible == 0)
313     {
314     // log_error("Set article (aid = %d) as invisible due to invisible or non-existing topic head\n", article.aid);
315     article.tid = 0;
316     article.visible = 0;
317     }
318     }
319    
320 sysadm 1.3 // acquire lock of current section if different from last one
321     if (!global_lock && article.sid != last_sid)
322     {
323 sysadm 1.4 if ((ret = section_list_rw_lock(p_section)) < 0)
324 sysadm 1.3 {
325 sysadm 1.11 log_error("section_list_rw_lock(sid=0) error\n");
326 sysadm 1.3 break;
327     }
328     }
329    
330     // append article to section list
331     last_sid = article.sid;
332    
333     if (section_list_append_article(p_section, &article) < 0)
334     {
335 sysadm 1.11 log_error("section_list_append_article(sid=%d, aid=%d) error\n",
336 sysadm 1.3 p_section->sid, article.aid);
337     ret = -3;
338     break;
339     }
340 sysadm 1.9
341     article_count++;
342    
343 sysadm 1.16 if (article_cache_generate(VAR_ARTICLE_CACHE_DIR, &article, p_section, row[i++], sub_ip, 0) < 0)
344 sysadm 1.11 {
345     log_error("article_cache_generate(aid=%d, cid=%d) error\n", article.aid, article.cid);
346     ret = -4;
347     break;
348     }
349 sysadm 1.3 }
350    
351     // release lock of last section
352     if (!global_lock && last_sid != 0)
353     {
354     if ((ret = section_list_rw_unlock(p_section)) < 0)
355     {
356 sysadm 1.11 log_error("section_list_rw_unlock(sid=%d) error\n", p_section->sid);
357 sysadm 1.3 }
358     }
359    
360     // release global lock
361 sysadm 1.23 if (global_lock && (ret = section_list_rw_unlock(NULL)) < 0)
362 sysadm 1.3 {
363 sysadm 1.23 log_error("section_list_rw_unlock(sid=0) error\n");
364 sysadm 1.3 }
365    
366     cleanup:
367     mysql_free_result(rs);
368     mysql_close(db);
369    
370 sysadm 1.31 article_cache_cleanup();
371    
372 sysadm 1.9 return (ret < 0 ? ret : article_count);
373 sysadm 1.3 }
374 sysadm 1.4
375 sysadm 1.5 int set_last_article_op_log_from_db(void)
376     {
377 sysadm 1.23 MYSQL *db = NULL;
378     MYSQL_RES *rs = NULL;
379 sysadm 1.5 MYSQL_ROW row;
380     char sql[SQL_BUFFER_LEN];
381 sysadm 1.23 int ret = 0;
382 sysadm 1.5
383     db = db_open();
384     if (db == NULL)
385     {
386     log_error("db_open() error: %s\n", mysql_error(db));
387 sysadm 1.23 ret = -1;
388     goto cleanup;
389 sysadm 1.5 }
390    
391     snprintf(sql, sizeof(sql),
392     "SELECT MID FROM bbs_article_op ORDER BY MID DESC LIMIT 1");
393    
394     if (mysql_query(db, sql) != 0)
395     {
396     log_error("Query article op error: %s\n", mysql_error(db));
397 sysadm 1.23 ret = -2;
398     goto cleanup;
399 sysadm 1.5 }
400     if ((rs = mysql_store_result(db)) == NULL)
401     {
402     log_error("Get article op data failed\n");
403 sysadm 1.23 ret = -2;
404     goto cleanup;
405 sysadm 1.5 }
406    
407     if ((row = mysql_fetch_row(rs)))
408     {
409     last_article_op_log_mid = atoi(row[0]);
410     }
411    
412 sysadm 1.23 cleanup:
413 sysadm 1.5 mysql_free_result(rs);
414     mysql_close(db);
415    
416 sysadm 1.23 return (ret < 0 ? ret : last_article_op_log_mid);
417 sysadm 1.5 }
418    
419 sysadm 1.9 int apply_article_op_log_from_db(int op_count_limit)
420 sysadm 1.5 {
421 sysadm 1.23 MYSQL *db = NULL;
422     MYSQL_RES *rs = NULL, *rs2 = NULL;
423 sysadm 1.5 MYSQL_ROW row, row2;
424     char sql[SQL_BUFFER_LEN];
425     ARTICLE *p_article;
426     SECTION_LIST *p_section = NULL;
427     SECTION_LIST *p_section_dest;
428 sysadm 1.16 char sub_ip[IP_ADDR_LEN];
429 sysadm 1.5 int32_t last_sid = 0;
430     int32_t sid_dest;
431 sysadm 1.9 int op_count = 0;
432 sysadm 1.5 int ret = 0;
433    
434     db = db_open();
435     if (db == NULL)
436     {
437     log_error("db_open() error: %s\n", mysql_error(db));
438 sysadm 1.23 ret = -1;
439     goto cleanup;
440 sysadm 1.5 }
441    
442     snprintf(sql, sizeof(sql),
443     "SELECT MID, AID, type FROM bbs_article_op "
444 sysadm 1.9 "WHERE MID > %d AND type NOT IN ('A') "
445     "ORDER BY MID LIMIT %d",
446     last_article_op_log_mid, op_count_limit);
447 sysadm 1.5
448     if (mysql_query(db, sql) != 0)
449     {
450     log_error("Query article log error: %s\n", mysql_error(db));
451 sysadm 1.23 ret = -2;
452     goto cleanup;
453 sysadm 1.5 }
454     if ((rs = mysql_store_result(db)) == NULL)
455     {
456     log_error("Get article log data failed\n");
457 sysadm 1.23 ret = -2;
458     goto cleanup;
459 sysadm 1.5 }
460    
461     while ((row = mysql_fetch_row(rs)))
462     {
463     p_article = article_block_find_by_aid(atoi(row[1]));
464     if (p_article == NULL) // related article has not been appended yet
465     {
466     ret = -2;
467     break;
468     }
469    
470     // release lock of last section if different from current one
471     if (p_article->sid != last_sid && last_sid != 0)
472     {
473     if ((ret = section_list_rw_unlock(p_section)) < 0)
474     {
475     log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
476     break;
477     }
478     }
479    
480     if ((p_section = section_list_find_by_sid(p_article->sid)) == NULL)
481     {
482     log_error("section_list_find_by_sid(%d) error: unknown section, try reloading section config\n", p_article->sid);
483     ret = ERR_UNKNOWN_SECTION; // Unknown section found
484     break;
485     }
486    
487     // acquire lock of current section if different from last one
488     if (p_article->sid != last_sid)
489     {
490     if ((ret = section_list_rw_lock(p_section)) < 0)
491     {
492     log_error("section_list_rw_lock(sid = 0) error\n");
493     break;
494     }
495     }
496    
497     last_sid = p_article->sid;
498    
499     switch (row[2][0])
500     {
501     case 'A': // Add article
502     log_error("Operation type=A should not be found\n");
503     break;
504     case 'D': // Delete article
505     case 'X': // Delete article by Admin
506 sysadm 1.20 if (section_list_set_article_visible(p_section, atoi(row[1]), 0) < 0)
507 sysadm 1.5 {
508 sysadm 1.20 log_error("section_list_set_article_visible(sid=%d, aid=%d, visible=0) error\n", p_section->sid, atoi(row[1]));
509     }
510     if (section_list_calculate_page(p_section, atoi(row[1])) < 0)
511     {
512     log_error("section_list_calculate_page(aid=%d) error\n", atoi(row[1]));
513 sysadm 1.5 }
514     break;
515     case 'S': // Restore article
516 sysadm 1.20 if (section_list_set_article_visible(p_section, atoi(row[1]), 1) < 0)
517     {
518     log_error("section_list_set_article_visible(sid=%d, aid=%d, visible=1) error\n", p_section->sid, atoi(row[1]));
519     }
520     if (section_list_calculate_page(p_section, atoi(row[1])) < 0)
521     {
522     log_error("section_list_calculate_page(aid=%d) error\n", atoi(row[1]));
523     }
524 sysadm 1.5 break;
525     case 'L': // Lock article
526     p_article->lock = 1;
527     break;
528     case 'U': // Unlock article
529     p_article->lock = 0;
530     break;
531     case 'M': // Modify article
532 sysadm 1.9 snprintf(sql, sizeof(sql),
533 sysadm 1.16 "SELECT bbs.CID, sub_ip, bbs_content.content "
534 sysadm 1.11 "FROM bbs INNER JOIN bbs_content ON bbs.CID = bbs_content.CID "
535     "WHERE bbs.AID = %d",
536 sysadm 1.9 p_article->aid);
537    
538     if (mysql_query(db, sql) != 0)
539     {
540     log_error("Query article error: %s\n", mysql_error(db));
541     ret = -3;
542     break;
543     }
544 sysadm 1.12 if ((rs2 = mysql_use_result(db)) == NULL)
545 sysadm 1.9 {
546     log_error("Get article data failed\n");
547     ret = -3;
548     break;
549     }
550     if ((row2 = mysql_fetch_row(rs2)))
551     {
552     p_article->cid = atoi(row2[0]);
553 sysadm 1.11
554 sysadm 1.16 strncpy(sub_ip, row2[1], sizeof(sub_ip) - 1);
555     sub_ip[sizeof(sub_ip) - 1] = '\0';
556     ip_mask(sub_ip, 1, '*');
557    
558     if (article_cache_generate(VAR_ARTICLE_CACHE_DIR, p_article, p_section, row2[2], sub_ip, 0) < 0)
559 sysadm 1.11 {
560     log_error("article_cache_generate(aid=%d, cid=%d) error\n", p_article->aid, p_article->cid);
561     ret = -4;
562     }
563 sysadm 1.9 }
564     else
565     {
566     p_article->cid = 0;
567     ret = -4;
568     }
569     mysql_free_result(rs2);
570 sysadm 1.23 rs2 = NULL;
571 sysadm 1.21
572     p_article->excerption = 0; // Set excerption = 0 implicitly in case of rare condition
573 sysadm 1.5 break;
574     case 'T': // Move article
575     snprintf(sql, sizeof(sql),
576     "SELECT SID FROM bbs WHERE AID = %d",
577     p_article->aid);
578    
579     if (mysql_query(db, sql) != 0)
580     {
581     log_error("Query article error: %s\n", mysql_error(db));
582     ret = -3;
583     break;
584     }
585     if ((rs2 = mysql_store_result(db)) == NULL)
586     {
587     log_error("Get article data failed\n");
588     ret = -3;
589     break;
590     }
591     if ((row2 = mysql_fetch_row(rs2)))
592     {
593     sid_dest = atoi(row2[0]);
594     }
595     else
596     {
597     sid_dest = 0;
598     ret = -4;
599     }
600     mysql_free_result(rs2);
601 sysadm 1.23 rs2 = NULL;
602 sysadm 1.5
603     if (sid_dest > 0 && sid_dest != p_article->sid)
604     {
605     p_section_dest = section_list_find_by_sid(sid_dest);
606     if (p_section_dest == NULL)
607     {
608     ret = ERR_UNKNOWN_SECTION;
609     break;
610     }
611 sysadm 1.6 // acquire lock of dest section
612     if ((ret = section_list_rw_lock(p_section_dest)) < 0)
613     {
614     log_error("section_list_rw_lock(sid = %d) error\n", p_section_dest);
615     break;
616     }
617 sysadm 1.5 // Move topic
618     if ((ret = section_list_move_topic(p_section, p_section_dest, p_article->aid)) < 0)
619     {
620 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",
621     p_section->sid, p_section_dest->sid, p_article->aid, ret);
622     }
623     // release lock of dest section
624     if (section_list_rw_unlock(p_section_dest) < 0)
625     {
626     log_error("section_list_rw_unlock(sid = %d) error\n", p_section_dest);
627     ret = -1;
628 sysadm 1.5 }
629     }
630     break;
631     case 'E': // Set article as excerption
632     p_article->excerption = 1;
633     break;
634     case 'O': // Unset article as excerption
635     p_article->excerption = 0;
636     break;
637     case 'F': // Set article on top
638     case 'V': // Unset article on top
639 sysadm 1.32 p_article->ontop = (row[2][0] == 'F' ? 1 : 0);
640     if (section_list_update_article_ontop(p_section, p_article) < 0)
641     {
642     log_error("section_list_update_article_ontop(sid=%d, aid=%d) error\n",
643     p_section->sid, p_article->aid);
644     }
645 sysadm 1.5 break;
646     case 'Z': // Set article as trnasship
647     p_article->transship = 1;
648     break;
649     default:
650     // log_error("Operation type=%s unknown, mid=%s\n", row[2], row[0]);
651     break;
652     }
653    
654     if (ret < 0)
655     {
656     break;
657     }
658    
659     // Update MID with last successfully proceeded article_op_log
660     last_article_op_log_mid = atoi(row[0]);
661 sysadm 1.9
662     op_count++;
663 sysadm 1.5 }
664    
665     // release lock of last section
666     if (last_sid != 0)
667     {
668     if ((ret = section_list_rw_unlock(p_section)) < 0)
669     {
670     log_error("section_list_rw_unlock(sid = %d) error\n", p_section->sid);
671     }
672     }
673    
674 sysadm 1.23 cleanup:
675     mysql_free_result(rs2);
676 sysadm 1.5 mysql_free_result(rs);
677     mysql_close(db);
678    
679 sysadm 1.9 return (ret < 0 ? ret : op_count);
680 sysadm 1.5 }
681    
682 sysadm 1.39 static void section_list_ex_menu_set_cleanup(void)
683     {
684     int i;
685    
686     for (i = 0; i < p_section_list_pool->section_count; i++)
687     {
688     if (p_section_list_pool->sections[i].ex_menu_tm > 0)
689     {
690     unload_menu(&(p_section_list_pool->sections[i].ex_menu_set));
691     }
692     }
693     }
694    
695 sysadm 1.4 int section_list_loader_launch(void)
696     {
697 sysadm 1.34 struct sigaction act = {0};
698 sysadm 1.4 int pid;
699     int ret;
700     int32_t last_aid;
701     int article_count;
702     int load_count;
703 sysadm 1.5 int last_mid;
704 sysadm 1.4 int i;
705    
706     if (section_list_loader_pid != 0)
707     {
708     log_error("section_list_loader already running, pid = %d\n", section_list_loader_pid);
709     return -2;
710     }
711    
712     pid = fork();
713    
714     if (pid > 0) // Parent process
715     {
716     SYS_child_process_count++;
717     section_list_loader_pid = pid;
718 sysadm 1.18 log_common("Section list loader process (pid = %d) start\n", pid);
719 sysadm 1.4 return 0;
720     }
721     else if (pid < 0) // Error
722     {
723     log_error("fork() error (%d)\n", errno);
724     return -1;
725     }
726    
727     // Child process
728     SYS_child_process_count = 0;
729    
730     // Detach menu in shared memory
731 sysadm 1.36 detach_menu_shm(&bbs_menu);
732 sysadm 1.4
733 sysadm 1.34 // Set signal handler
734     act.sa_handler = SIG_DFL;
735 sysadm 1.38 if (sigaction(SIGHUP, &act, NULL) == -1)
736     {
737     log_error("set signal action of SIGHUP error: %d\n", errno);
738     }
739     act.sa_handler = SIG_DFL;
740 sysadm 1.34 if (sigaction(SIGCHLD, &act, NULL) == -1)
741     {
742     log_error("set signal action of SIGCHLD error: %d\n", errno);
743     }
744    
745 sysadm 1.4 // Do section data loader periodically
746     while (!SYS_server_exit)
747     {
748 sysadm 1.38 if (SYS_conf_reload)
749 sysadm 1.4 {
750 sysadm 1.38 SYS_conf_reload = 0;
751 sysadm 1.4
752     // Load section config
753 sysadm 1.38 if (load_section_config_from_db(0) < 0)
754 sysadm 1.4 {
755 sysadm 1.38 log_error("load_section_config_from_db(0) error\n");
756 sysadm 1.4 }
757     else
758     {
759 sysadm 1.27 log_common("Reload section config successfully\n");
760 sysadm 1.4 }
761     }
762    
763     // Load section articles
764     article_count = article_block_article_count();
765    
766 sysadm 1.9 do
767 sysadm 1.4 {
768 sysadm 1.9 last_aid = article_block_last_aid();
769 sysadm 1.4
770 sysadm 1.9 if ((ret = append_articles_from_db(last_aid + 1, 0, LOAD_ARTICLE_COUNT_LIMIT)) < 0)
771 sysadm 1.4 {
772 sysadm 1.9 log_error("append_articles_from_db(%d, 0, %d) error\n", last_aid + 1, LOAD_ARTICLE_COUNT_LIMIT);
773    
774     if (ret == ERR_UNKNOWN_SECTION)
775     {
776 sysadm 1.38 SYS_conf_reload = 1; // Force reload section_list
777 sysadm 1.9 }
778 sysadm 1.4 }
779 sysadm 1.9 } while (ret == LOAD_ARTICLE_COUNT_LIMIT);
780 sysadm 1.5
781     load_count = article_block_article_count() - article_count;
782     if (load_count > 0)
783     {
784 sysadm 1.17 log_common("Incrementally load %d articles, last_aid = %d\n", load_count, article_block_last_aid());
785 sysadm 1.5 }
786    
787 sysadm 1.38 if (SYS_conf_reload)
788 sysadm 1.5 {
789     continue;
790     }
791    
792     // Load article_op log
793     last_mid = last_article_op_log_mid;
794    
795 sysadm 1.9 do
796 sysadm 1.4 {
797 sysadm 1.9 if ((ret = apply_article_op_log_from_db(LOAD_ARTICLE_COUNT_LIMIT)) < 0)
798     {
799     log_error("apply_article_op_log_from_db() error\n");
800 sysadm 1.4
801 sysadm 1.9 if (ret == ERR_UNKNOWN_SECTION)
802     {
803 sysadm 1.38 SYS_conf_reload = 1; // Force reload section_list
804 sysadm 1.9 }
805 sysadm 1.4 }
806 sysadm 1.9 } while (ret == LOAD_ARTICLE_COUNT_LIMIT);
807 sysadm 1.4
808 sysadm 1.5 if (last_article_op_log_mid > last_mid)
809     {
810 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);
811 sysadm 1.5 }
812    
813 sysadm 1.38 if (SYS_conf_reload)
814 sysadm 1.5 {
815     continue;
816     }
817    
818 sysadm 1.38 for (i = 0; i < BBS_section_list_load_interval && !SYS_server_exit && !SYS_conf_reload; i++)
819 sysadm 1.5 {
820     sleep(1);
821 sysadm 1.4 }
822     }
823    
824     // Child process exit
825    
826 sysadm 1.31 article_cache_cleanup();
827    
828 sysadm 1.34 // gen_ex_menu cleanup
829     section_list_ex_menu_set_cleanup();
830 sysadm 1.37
831 sysadm 1.4 // Detach data pools shm
832     detach_section_list_shm();
833     detach_article_block_shm();
834     detach_trie_dict_shm();
835    
836 sysadm 1.17 log_common("Section list loader process exit normally\n");
837 sysadm 1.4 log_end();
838    
839     section_list_loader_pid = 0;
840    
841     _exit(0);
842    
843     return 0;
844     }
845    
846 sysadm 1.33 int query_section_articles(SECTION_LIST *p_section, int page_id, ARTICLE *p_articles[],
847     int *p_article_count, int *p_page_count, int *p_ontop_start_offset)
848 sysadm 1.7 {
849     ARTICLE *p_article;
850     ARTICLE *p_next_page_first_article;
851     int ret = 0;
852 sysadm 1.32 int i;
853 sysadm 1.7
854 sysadm 1.33 if (p_section == NULL || p_articles == NULL || p_article_count == NULL || p_page_count == NULL || p_ontop_start_offset == NULL)
855 sysadm 1.7 {
856 sysadm 1.34 log_error("NULL pointer error\n");
857 sysadm 1.7 return -1;
858     }
859    
860     // acquire lock of section
861     if ((ret = section_list_rd_lock(p_section)) < 0)
862     {
863     log_error("section_list_rd_lock(sid = %d) error\n", p_section->sid);
864     return -2;
865     }
866    
867 sysadm 1.32 *p_page_count = section_list_page_count_with_ontop(p_section);
868     *p_article_count = 0;
869 sysadm 1.33 *p_ontop_start_offset = BBS_article_limit_per_page;
870 sysadm 1.10
871 sysadm 1.9 if (p_section->visible_article_count == 0)
872     {
873 sysadm 1.32 // empty section
874 sysadm 1.9 }
875 sysadm 1.32 else if (page_id < 0 || page_id >= *p_page_count)
876 sysadm 1.7 {
877 sysadm 1.32 log_error("Invalid page_id=%d, not in range [0, %d)\n", page_id, *p_page_count);
878 sysadm 1.7 ret = -3;
879     }
880     else
881     {
882     ret = page_id;
883    
884 sysadm 1.32 if (page_id <= p_section->page_count - 1)
885 sysadm 1.7 {
886 sysadm 1.32 p_article = p_section->p_page_first_article[page_id];
887     p_next_page_first_article =
888     (page_id == p_section->page_count - 1 ? p_section->p_article_head : p_section->p_page_first_article[page_id + 1]);
889    
890     do
891     {
892     if (p_article->visible)
893     {
894     p_articles[*p_article_count] = p_article;
895     (*p_article_count)++;
896     }
897     p_article = p_article->p_next;
898     } while (p_article != p_next_page_first_article && (*p_article_count) <= BBS_article_limit_per_page);
899    
900     if (*p_article_count != (page_id < p_section->page_count - 1 ? BBS_article_limit_per_page : p_section->last_page_visible_article_count))
901 sysadm 1.7 {
902 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);
903 sysadm 1.7 }
904 sysadm 1.32 }
905 sysadm 1.8
906 sysadm 1.33 *p_ontop_start_offset = *p_article_count;
907    
908 sysadm 1.32 // Append ontop articles
909     if (page_id >= p_section->page_count - 1)
910 sysadm 1.8 {
911 sysadm 1.32 i = (page_id == p_section->page_count - 1
912     ? 0
913     : (page_id - p_section->page_count + 1) * BBS_article_limit_per_page - p_section->last_page_visible_article_count);
914     while (*p_article_count < BBS_article_limit_per_page && i < p_section->ontop_article_count)
915     {
916     p_articles[(*p_article_count)++] = p_section->p_ontop_articles[i++];
917     }
918 sysadm 1.8 }
919 sysadm 1.7 }
920    
921     // release lock of section
922 sysadm 1.8 if (section_list_rd_unlock(p_section) < 0)
923 sysadm 1.7 {
924     log_error("section_list_rd_unlock(sid = %d) error\n", p_section->sid);
925     ret = -2;
926     }
927    
928     return ret;
929     }
930 sysadm 1.14
931 sysadm 1.24 int locate_article_in_section(SECTION_LIST *p_section, const ARTICLE *p_article_cur, int direction, int step,
932 sysadm 1.15 int *p_page_id, int *p_visible_offset, int *p_article_count)
933 sysadm 1.14 {
934 sysadm 1.15 const ARTICLE *p_article = NULL;
935 sysadm 1.40 const ARTICLE *p_article_last = NULL;
936 sysadm 1.15 ARTICLE *p_tmp;
937 sysadm 1.14 int32_t aid = 0;
938 sysadm 1.24 int page_id = 0;
939     int offset = 0;
940 sysadm 1.14 int ret = 0;
941 sysadm 1.15 int i;
942 sysadm 1.14
943 sysadm 1.15 if (p_section == NULL || p_article_cur == NULL || p_page_id == NULL || p_visible_offset == NULL || p_article_count == NULL)
944 sysadm 1.14 {
945 sysadm 1.34 log_error("NULL pointer error\n");
946 sysadm 1.14 return -1;
947     }
948    
949     // acquire lock of section
950     if ((ret = section_list_rd_lock(p_section)) < 0)
951     {
952     log_error("section_list_rd_lock(sid = %d) error\n", p_section->sid);
953     return -2;
954     }
955    
956     if (direction == 0)
957     {
958     aid = p_article_cur->aid;
959     }
960     else if (direction == 1)
961     {
962 sysadm 1.40 for (p_article = p_article_cur, p_article_last = p_article_cur;
963     step > 0 && p_article->p_topic_next->aid > p_article_cur->aid;
964     p_article = p_article->p_topic_next)
965 sysadm 1.14 {
966 sysadm 1.24 if (p_article->visible)
967     {
968     step--;
969 sysadm 1.40 p_article_last = p_article;
970 sysadm 1.24 }
971     }
972 sysadm 1.40 if (!p_article->visible)
973     {
974     p_article = p_article_last;
975     }
976 sysadm 1.15
977 sysadm 1.25 aid = (p_article->aid > p_article_cur->aid && p_article->visible ? p_article->aid : 0);
978 sysadm 1.14 }
979     else if (direction == -1)
980     {
981 sysadm 1.40 for (p_article = p_article_cur, p_article_last = p_article_cur;
982     step > 0 && p_article->p_topic_prior->aid < p_article_cur->aid;
983     p_article = p_article->p_topic_prior)
984 sysadm 1.14 {
985 sysadm 1.24 if (p_article->visible)
986     {
987     step--;
988 sysadm 1.40 p_article_last = p_article;
989 sysadm 1.24 }
990     }
991 sysadm 1.40 if (!p_article->visible)
992     {
993     p_article = p_article_last;
994     }
995 sysadm 1.15
996 sysadm 1.25 aid = (p_article->aid < p_article_cur->aid && p_article->visible ? p_article->aid : 0);
997 sysadm 1.14 }
998    
999 sysadm 1.15 p_article = NULL;
1000    
1001 sysadm 1.14 if (aid > 0)
1002     {
1003 sysadm 1.15 p_article = section_list_find_article_with_offset(p_section, aid, &page_id, &offset, &p_tmp);
1004 sysadm 1.14 if (p_article != NULL)
1005     {
1006 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);
1007    
1008     p_article = p_section->p_page_first_article[page_id];
1009 sysadm 1.25 for (i = 0; i < *p_article_count && p_article != NULL;)
1010 sysadm 1.15 {
1011     if (p_article->visible)
1012     {
1013     if (p_article->aid == aid)
1014     {
1015     *p_page_id = page_id;
1016     *p_visible_offset = i;
1017     break;
1018     }
1019     i++;
1020     if (i >= *p_article_count)
1021     {
1022     log_error("Visible article (aid=%d) not found in page %d\n", aid, page_id);
1023     p_article = NULL;
1024 sysadm 1.25 break;
1025 sysadm 1.15 }
1026     }
1027     p_article = p_article->p_next;
1028     }
1029 sysadm 1.32
1030     // Include ontop articles
1031     *p_article_count = section_list_page_article_count_with_ontop(p_section, page_id);
1032 sysadm 1.14 }
1033     }
1034    
1035     // release lock of section
1036     if (section_list_rd_unlock(p_section) < 0)
1037     {
1038     log_error("section_list_rd_unlock(sid = %d) error\n", p_section->sid);
1039     ret = -2;
1040     }
1041    
1042     return (ret < 0 ? ret : (p_article == NULL ? 0 : 1));
1043     }
1044 sysadm 1.34
1045     int get_section_ex_menu_set(SECTION_LIST *p_section, MENU_SET *p_ex_menu_set)
1046     {
1047     int ret = 0;
1048    
1049     if (p_section == NULL || p_ex_menu_set == NULL)
1050     {
1051     log_error("NULL pointer error\n");
1052     return -1;
1053     }
1054    
1055     // acquire lock of section
1056     if ((ret = section_list_rd_lock(p_section)) < 0)
1057     {
1058     log_error("section_list_rd_lock(sid = %d) error\n", p_section->sid);
1059     return -2;
1060     }
1061    
1062     memcpy(p_ex_menu_set, &(p_section->ex_menu_set), sizeof(p_section->ex_menu_set));
1063    
1064     // release lock of section
1065     if (section_list_rd_unlock(p_section) < 0)
1066     {
1067     log_error("section_list_rd_unlock(sid = %d) error\n", p_section->sid);
1068     ret = -2;
1069     }
1070    
1071     return ret;
1072     }
webmaster@leafok.com
 ViewVC Help
Powered by ViewVC 1.3.0-beta1