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1 | #include <stdio.h> | |
2 | #include <stdarg.h> | |
3 | #include "../lib/version.h" | |
4 | #include "../dbapi2/dbapi2.h" | |
5 | #include "../core/error.h" | |
6 | #include "../core/hooks.h" | |
7 | #include "../core/schedule.h" | |
8 | #include "../control/control.h" | |
9 | #include "../irc/irc.h" | |
10 | #include "trusts.h" | |
11 | ||
12 | MODULE_VERSION(""); | |
13 | ||
14 | DBAPIConn *trustsdb; | |
15 | static int tgmaxid, thmaxid; | |
16 | static int loaderror; | |
17 | static void *flushschedule; | |
18 | ||
19 | void createtrusttables(int migration); | |
20 | void trusts_flush(void (*)(trusthost *), void (*)(trustgroup *)); | |
21 | void trusts_freeall(void); | |
22 | static void th_dbupdatecounts(trusthost *th); | |
23 | static void tg_dbupdatecounts(trustgroup *tg); | |
24 | ||
25 | void createtrusttables(int mode) { | |
26 | char *groups, *hosts; | |
27 | ||
28 | if(mode == TABLES_MIGRATION) { | |
29 | groups = "migration_groups"; | |
30 | hosts = "migration_hosts"; | |
31 | } else if(mode == TABLES_REPLICATION) { | |
32 | groups = "replication_groups"; | |
33 | hosts = "replication_hosts"; | |
34 | } else { | |
35 | groups = "groups"; | |
36 | hosts = "hosts"; | |
37 | } | |
38 | ||
39 | trustsdb->createtable(trustsdb, NULL, NULL, | |
40 | "CREATE TABLE ? (id INT PRIMARY KEY, name VARCHAR(?), trustedfor INT, flags INT, maxperident INT, maxusage INT, expires INT, lastseen INT, lastmaxusereset INT, createdby VARCHAR(?), contact VARCHAR(?), comment VARCHAR(?))", | |
41 | "Tdddd", groups, TRUSTNAMELEN, CREATEDBYLEN, CONTACTLEN, COMMENTLEN | |
42 | ); | |
43 | ||
44 | /* I'd like multiple keys here but that's not gonna happen on a cross-database platform :( */ | |
45 | trustsdb->createtable(trustsdb, NULL, NULL, "CREATE TABLE ? (id INT PRIMARY KEY, groupid INT, host VARCHAR(?), maxusage INT, created INT, lastseen INT, maxpernode INT, nodebits INT)", "Td", hosts, TRUSTHOSTLEN); | |
46 | ||
47 | trustsdb->createtable(trustsdb, NULL, NULL, | |
48 | "CREATE TABLE ? (groupid INT, groupname VARCHAR(?), ts INT, username VARCHAR(?), message VARCHAR(?))", | |
49 | "Tddd", "log", TRUSTNAMELEN, CREATEDBYLEN, TRUSTLOGLEN | |
50 | ); | |
51 | } | |
52 | ||
53 | static void flushdatabase(void *arg) { | |
54 | trusts_flush(th_dbupdatecounts, tg_dbupdatecounts); | |
55 | } | |
56 | ||
57 | static void triggerdbloaded(void *arg) { | |
58 | triggerhook(HOOK_TRUSTS_DB_LOADED, NULL); | |
59 | } | |
60 | ||
61 | static void loadcomplete(void) { | |
62 | /* error has already been shown */ | |
63 | if(loaderror) | |
64 | return; | |
65 | ||
66 | th_linktree(); | |
67 | trustsdbloaded = 1; | |
68 | flushschedule = schedulerecurring(time(NULL) + 300, 0, 300, flushdatabase, NULL); | |
69 | ||
70 | scheduleoneshot(time(NULL), triggerdbloaded, NULL); | |
71 | } | |
72 | ||
73 | static void loadhosts_data(const DBAPIResult *result, void *tag) { | |
74 | if(!result) { | |
75 | loaderror = 1; | |
76 | return; | |
77 | } | |
78 | ||
79 | if(!result->success) { | |
80 | Error("trusts", ERR_ERROR, "Error loading hosts table."); | |
81 | loaderror = 1; | |
82 | ||
83 | result->clear(result); | |
84 | return; | |
85 | } | |
86 | ||
87 | if(result->fields != 8) { | |
88 | Error("trusts", ERR_ERROR, "Wrong number of fields in hosts table."); | |
89 | loaderror = 1; | |
90 | ||
91 | result->clear(result); | |
92 | return; | |
93 | } | |
94 | ||
95 | while(result->next(result)) { | |
96 | unsigned int groupid; | |
97 | trusthost th; | |
98 | char *host; | |
99 | ||
100 | th.id = strtoul(result->get(result, 0), NULL, 10); | |
101 | if(th.id > thmaxid) | |
102 | thmaxid = th.id; | |
103 | ||
104 | groupid = strtoul(result->get(result, 1), NULL, 10); | |
105 | ||
106 | th.group = tg_getbyid(groupid); | |
107 | if(!th.group) { | |
108 | Error("trusts", ERR_WARNING, "Orphaned trust group host: %d", groupid); | |
109 | continue; | |
110 | } | |
111 | ||
112 | host = result->get(result, 2); | |
113 | if(!ipmask_parse(host, &th.ip, &th.bits)) { | |
114 | Error("trusts", ERR_WARNING, "Error parsing cidr for host: %s", host); | |
115 | continue; | |
116 | } | |
117 | ||
118 | th.maxusage = strtoul(result->get(result, 3), NULL, 10); | |
119 | th.created = (time_t)strtoul(result->get(result, 4), NULL, 10); | |
120 | th.lastseen = (time_t)strtoul(result->get(result, 5), NULL, 10); | |
121 | th.maxpernode = strtol(result->get(result, 6), NULL, 10); | |
122 | th.nodebits = strtol(result->get(result, 7), NULL, 10); | |
123 | ||
124 | if(!th_add(&th)) | |
125 | Error("trusts", ERR_WARNING, "Error adding host to trust %d: %s", groupid, host); | |
126 | } | |
127 | ||
128 | result->clear(result); | |
129 | ||
130 | loadcomplete(); | |
131 | } | |
132 | ||
133 | static void loadhosts_fini(const DBAPIResult *result, void *tag) { | |
134 | Error("trusts", ERR_INFO, "Finished loading hosts, maximum id: %d", thmaxid); | |
135 | } | |
136 | ||
137 | static void loadgroups_data(const DBAPIResult *result, void *tag) { | |
138 | if(!result) { | |
139 | loaderror = 1; | |
140 | return; | |
141 | } | |
142 | ||
143 | if(!result->success) { | |
144 | Error("trusts", ERR_ERROR, "Error loading group table."); | |
145 | loaderror = 1; | |
146 | ||
147 | result->clear(result); | |
148 | return; | |
149 | } | |
150 | ||
151 | if(result->fields != 12) { | |
152 | Error("trusts", ERR_ERROR, "Wrong number of fields in groups table."); | |
153 | loaderror = 1; | |
154 | ||
155 | result->clear(result); | |
156 | return; | |
157 | } | |
158 | ||
159 | while(result->next(result)) { | |
160 | trustgroup tg; | |
161 | ||
162 | tg.id = strtoul(result->get(result, 0), NULL, 10); | |
163 | if(tg.id > tgmaxid) | |
164 | tgmaxid = tg.id; | |
165 | ||
166 | tg.name = getsstring(rtrim(result->get(result, 1)), TRUSTNAMELEN); | |
167 | tg.trustedfor = strtoul(result->get(result, 2), NULL, 10); | |
168 | tg.flags = atoi(result->get(result, 3)); | |
169 | tg.maxperident = strtoul(result->get(result, 4), NULL, 10); | |
170 | tg.maxusage = strtoul(result->get(result, 5), NULL, 10); | |
171 | tg.expires = (time_t)strtoul(result->get(result, 6), NULL, 10); | |
172 | tg.lastseen = (time_t)strtoul(result->get(result, 7), NULL, 10); | |
173 | tg.lastmaxusereset = (time_t)strtoul(result->get(result, 8), NULL, 10); | |
174 | tg.createdby = getsstring(rtrim(result->get(result, 9)), CREATEDBYLEN); | |
175 | tg.contact = getsstring(rtrim(result->get(result, 10)), CONTACTLEN); | |
176 | tg.comment = getsstring(rtrim(result->get(result, 11)), COMMENTLEN); | |
177 | ||
178 | if(tg.name && tg.createdby && tg.contact && tg.comment) { | |
179 | if(!tg_add(&tg)) | |
180 | Error("trusts", ERR_WARNING, "Error adding trustgroup %d: %s", tg.id, tg.name->content); | |
181 | } else { | |
182 | Error("trusts", ERR_ERROR, "Error allocating sstring in group loader, id: %d", tg.id); | |
183 | } | |
184 | ||
185 | freesstring(tg.name); | |
186 | freesstring(tg.createdby); | |
187 | freesstring(tg.contact); | |
188 | freesstring(tg.comment); | |
189 | } | |
190 | ||
191 | result->clear(result); | |
192 | } | |
193 | ||
194 | static void loadgroups_fini(const DBAPIResult *result, void *tag) { | |
195 | Error("trusts", ERR_INFO, "Finished loading groups, maximum id: %d.", tgmaxid); | |
196 | } | |
197 | ||
198 | static int trusts_connectdb(void) { | |
199 | if(!trustsdb) { | |
200 | trustsdb = dbapi2open(NULL, "trusts"); | |
201 | if(!trustsdb) { | |
202 | Error("trusts", ERR_WARNING, "Unable to connect to db -- not loaded."); | |
203 | return 0; | |
204 | } | |
205 | } | |
206 | ||
207 | createtrusttables(TABLES_REGULAR); | |
208 | ||
209 | return 1; | |
210 | } | |
211 | ||
212 | int trusts_loaddb(void) { | |
213 | if(!trusts_connectdb()) | |
214 | return 0; | |
215 | ||
216 | loaderror = 0; | |
217 | ||
218 | trustsdb->loadtable(trustsdb, NULL, loadgroups_data, loadgroups_fini, NULL, "groups"); | |
219 | trustsdb->loadtable(trustsdb, NULL, loadhosts_data, loadhosts_fini, NULL, "hosts"); | |
220 | ||
221 | return 1; | |
222 | } | |
223 | ||
224 | void trusts_closedb(int closeconnection) { | |
225 | if(!trustsdb) | |
226 | return; | |
227 | ||
228 | if(flushschedule) { | |
229 | deleteschedule(flushschedule, flushdatabase, NULL); | |
230 | flushschedule = NULL; | |
231 | ||
232 | flushdatabase(NULL); | |
233 | } | |
234 | ||
235 | trusts_freeall(); | |
236 | ||
237 | trustsdbloaded = 0; | |
238 | thmaxid = tgmaxid = 0; | |
239 | ||
240 | if(closeconnection) { | |
241 | trustsdb->close(trustsdb); | |
242 | trustsdb = NULL; | |
243 | } | |
244 | ||
245 | triggerhook(HOOK_TRUSTS_DB_CLOSED, NULL); | |
246 | } | |
247 | ||
248 | static void th_dbupdatecounts(trusthost *th) { | |
249 | trustsdb->squery(trustsdb, "UPDATE ? SET lastseen = ?, maxusage = ? WHERE id = ?", "Ttuu", "hosts", th->lastseen, th->maxusage, th->id); | |
250 | } | |
251 | ||
252 | static void tg_dbupdatecounts(trustgroup *tg) { | |
253 | trustsdb->squery(trustsdb, "UPDATE ? SET lastseen = ?, maxusage = ? WHERE id = ?", "Ttuu", "groups", tg->lastseen, tg->maxusage, tg->id); | |
254 | } | |
255 | ||
256 | trusthost *th_copy(trusthost *ith) { | |
257 | trusthost *th, *superset, *subset; | |
258 | ||
259 | th = th_add(ith); | |
260 | if(!th) | |
261 | return NULL; | |
262 | ||
263 | trustsdb_insertth("hosts", th, th->group->id); | |
264 | ||
265 | th_getsuperandsubsets(&ith->ip, ith->bits, &superset, &subset); | |
266 | th_adjusthosts(th, superset, subset); | |
267 | th_linktree(); | |
268 | ||
269 | return th; | |
270 | } | |
271 | ||
272 | trusthost *th_new(trustgroup *tg, char *host) { | |
273 | trusthost *th, nth; | |
274 | ||
275 | if(!ipmask_parse(host, &nth.ip, &nth.bits)) | |
276 | return NULL; | |
277 | ||
278 | nth.group = tg; | |
279 | nth.id = thmaxid + 1; | |
280 | nth.created = getnettime(); | |
281 | nth.lastseen = 0; | |
282 | nth.maxusage = 0; | |
283 | ||
284 | nth.maxpernode = 0; | |
285 | nth.nodebits = (irc_in_addr_is_ipv4(&nth.ip))?128:64; | |
286 | ||
287 | if (nth.bits < nth.nodebits) | |
288 | nth.nodebits = nth.bits; | |
289 | ||
290 | th = th_copy(&nth); | |
291 | if(!th) | |
292 | return NULL; | |
293 | ||
294 | thmaxid++; | |
295 | ||
296 | return th; | |
297 | } | |
298 | ||
299 | trustgroup *tg_copy(trustgroup *itg) { | |
300 | trustgroup *tg = tg_add(itg); | |
301 | if(!tg) | |
302 | return NULL; | |
303 | ||
304 | trustsdb_inserttg("groups", tg); | |
305 | return tg; | |
306 | } | |
307 | ||
308 | trustgroup *tg_new(trustgroup *itg) { | |
309 | trustgroup *tg; | |
310 | ||
311 | itg->id = tgmaxid + 1; | |
312 | itg->maxusage = 0; | |
313 | itg->lastseen = 0; | |
314 | itg->lastmaxusereset = 0; | |
315 | ||
316 | tg = tg_copy(itg); | |
317 | if(!tg) | |
318 | return NULL; | |
319 | ||
320 | tgmaxid++; | |
321 | ||
322 | return tg; | |
323 | } | |
324 | ||
325 | void trustsdb_insertth(char *table, trusthost *th, unsigned int groupid) { | |
326 | trustsdb->squery(trustsdb, | |
327 | "INSERT INTO ? (id, groupid, host, maxusage, created, lastseen, maxpernode, nodebits) VALUES (?, ?, ?, ?, ?, ?, ?, ?)", | |
328 | "Tuusuutuu", table, th->id, groupid, CIDRtostr(th->ip, th->bits), th->maxusage, th->created, th->lastseen, th->maxpernode, th->nodebits | |
329 | ); | |
330 | } | |
331 | ||
332 | void trustsdb_inserttg(char *table, trustgroup *tg) { | |
333 | trustsdb->squery(trustsdb, | |
334 | "INSERT INTO ? (id, name, trustedfor, flags, maxperident, maxusage, expires, lastseen, lastmaxusereset, createdby, contact, comment) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)", | |
335 | "Tusuuuutttsss", table, tg->id, tg->name->content, tg->trustedfor, tg->flags, tg->maxperident, tg->maxusage, tg->expires, tg->lastseen, tg->lastmaxusereset, tg->createdby->content, tg->contact->content, tg->comment->content | |
336 | ); | |
337 | } | |
338 | ||
339 | void tg_update(trustgroup *tg) { | |
340 | trustsdb->squery(trustsdb, | |
341 | "UPDATE ? SET name = ?, trustedfor = ?, flags = ?, maxperident = ?, maxusage = ?, expires = ?, lastseen = ?, lastmaxusereset = ?, createdby = ?, contact = ?, comment = ? WHERE id = ?", | |
342 | "Tsuuuutttsssu", "groups", tg->name->content, tg->trustedfor, tg->flags, tg->maxperident, tg->maxusage, tg->expires, tg->lastseen, tg->lastmaxusereset, tg->createdby->content, tg->contact->content, tg->comment->content, tg->id | |
343 | ); | |
344 | } | |
345 | ||
346 | void trustsdb_deletetg(char *table, trustgroup *tg) { | |
347 | trustsdb->squery(trustsdb, | |
348 | "DELETE FROM ? WHERE id = ?", | |
349 | "Tu", "groups", tg->id); | |
350 | } | |
351 | ||
352 | void tg_delete(trustgroup *tg) { | |
353 | trustgroup **pnext; | |
354 | ||
355 | for(pnext=&tglist;*pnext;pnext=&((*pnext)->next)) { | |
356 | if(*pnext == tg) { | |
357 | *pnext = tg->next; | |
358 | break; | |
359 | } | |
360 | } | |
361 | ||
362 | trustsdb_deletetg("groups", tg); | |
363 | tg_free(tg, 1); | |
364 | } | |
365 | ||
366 | void th_update(trusthost *th) { | |
367 | trustsdb->squery(trustsdb, | |
368 | "UPDATE ? SET maxpernode = ?, nodebits = ? WHERE id = ?", | |
369 | "Tuuu", "hosts", th->maxpernode, th->nodebits, th->id | |
370 | ); | |
371 | } | |
372 | ||
373 | void trustsdb_deleteth(char *table, trusthost *th) { | |
374 | trustsdb->squery(trustsdb, | |
375 | "DELETE FROM ? WHERE id = ?", | |
376 | "Tu", "hosts", th->id); | |
377 | } | |
378 | ||
379 | void th_delete(trusthost *th) { | |
380 | trusthost **pnext; | |
381 | nick *np; | |
382 | ||
383 | for(pnext=&(th->group->hosts);*pnext;pnext=&((*pnext)->next)) { | |
384 | if(*pnext == th) { | |
385 | *pnext = th->next; | |
386 | break; | |
387 | } | |
388 | } | |
389 | ||
390 | if(th->parent) { | |
391 | for(pnext=&(th->parent->children);*pnext;pnext=&((*pnext)->nextbychild)) { | |
392 | if(*pnext == th) { | |
393 | *pnext = th->nextbychild; | |
394 | break; | |
395 | } | |
396 | } | |
397 | } | |
398 | ||
399 | for(np=th->users;np;np=nextbytrust(np)) | |
400 | settrusthost(np, NULL); | |
401 | ||
402 | th->group->count -= th->count; | |
403 | ||
404 | if(th->parent) { | |
405 | th->parent->count += th->count; | |
406 | ||
407 | if(th->lastseen > th->parent->lastseen) | |
408 | th->parent->lastseen = th->lastseen; | |
409 | } | |
410 | ||
411 | trustsdb_deleteth("hosts", th); | |
412 | th_free(th); | |
413 | ||
414 | th_linktree(); | |
415 | } | |
416 | ||
417 | void trustlog(trustgroup *tg, const char *user, const char *format, ...) { | |
418 | char buf[TRUSTLOGLEN+1]; | |
419 | va_list va; | |
420 | unsigned int now; | |
421 | ||
422 | va_start(va, format); | |
423 | vsnprintf(buf, sizeof(buf), format, va); | |
424 | va_end(va); | |
425 | ||
426 | now = time(NULL); | |
427 | ||
428 | trustsdb->squery(trustsdb, | |
429 | "INSERT INTO ? (ts, groupid, groupname, username, message) VALUES (?, ?, ?, ?, ?)", | |
430 | "Tuusss", "log", now, tg->id, tg->name->content, user, buf); | |
431 | } | |
432 | ||
433 | static void trustlogquery_callback(const struct DBAPIResult *result, void *arg) { | |
434 | nick *np = (nick *)arg; | |
435 | int rows = 0; | |
436 | ||
437 | if(!result || !result->success) { | |
438 | controlreply(np, "Error querying the log."); | |
439 | ||
440 | if(result) | |
441 | result->clear(result); | |
442 | ||
443 | return; | |
444 | } | |
445 | ||
446 | if(result->fields != 5) { | |
447 | Error("trusts", ERR_ERROR, "Wrong number of fields in log table."); | |
448 | ||
449 | result->clear(result); | |
450 | return; | |
451 | } | |
452 | ||
453 | while(result->next(result)) { | |
454 | unsigned int ts, groupid; | |
455 | char *groupname, *user, *message; | |
456 | ||
457 | ts = strtoul(result->get(result, 0), NULL, 10); | |
458 | groupid = strtoul(result->get(result, 1), NULL, 10); | |
459 | groupname = result->get(result, 2); | |
460 | user = result->get(result, 3); | |
461 | message = result->get(result, 4); | |
462 | ||
463 | controlreply(np, "[%s] #%d/%s (%s) %s", trusts_timetostr(ts), groupid, groupname, user, message); | |
464 | rows++; | |
465 | } | |
466 | ||
467 | result->clear(result); | |
468 | ||
469 | controlreply(np, "--- Done. Found %d entries.", rows); | |
470 | } | |
471 | ||
472 | void trustlogspewid(nick *np, unsigned int groupid, unsigned int limit) { | |
473 | trustsdb->query(trustsdb, trustlogquery_callback, (void *)np, | |
474 | "SELECT ts, groupid, groupname, username, message FROM ? WHERE groupid = ? ORDER BY ts DESC LIMIT ?", | |
475 | "Tuu", "log", groupid, limit); | |
476 | } | |
477 | ||
478 | void trustlogspewname(nick *np, const char *groupname, unsigned int limit) { | |
479 | trustsdb->query(trustsdb, trustlogquery_callback, (void *)np, | |
480 | "SELECT ts, groupid, groupname, username, message FROM ? WHERE groupname = ? ORDER BY ts DESC LIMIT ?", | |
481 | "Tsu", "log", groupname, limit); | |
482 | } | |
483 | ||
484 | void trustloggrep(nick *np, const char *pattern, unsigned int limit) { | |
485 | char buf[512]; | |
486 | snprintf(buf, sizeof(buf), "%%%s%%", pattern); | |
487 | ||
488 | trustsdb->query(trustsdb, trustlogquery_callback, (void *)np, | |
489 | "SELECT ts, groupid, groupname, username, message FROM ? WHERE message LIKE ? ORDER BY ts DESC LIMIT ?", | |
490 | "Tsu", "log", buf, limit); | |
491 | } | |
492 | ||
493 | void _init(void) { | |
494 | trusts_connectdb(); | |
495 | } | |
496 | ||
497 | void _fini(void) { | |
498 | trusts_closedb(1); | |
499 | } |