1 /* modcmd.c - NeonServ v5.0
2 * Copyright (C) 2011 Philipp Kreil (pk910)
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 #include "IRCEvents.h"
20 #include "IRCParser.h"
21 #include "ClientSocket.h"
25 #include "WHOHandler.h"
27 #include "mysqlConn.h"
29 #include "EventLogger.h"
31 struct trigger_callback {
33 trigger_callback_t *func;
35 struct trigger_callback *next;
38 struct command_check_user_cache {
39 struct ClientSocket *client, *textclient;
40 struct UserNode *user;
41 struct ChanNode *chan, *sent_chan;
45 struct cmd_binding *cbind;
48 static struct cmd_binding **cmd_binds;
49 static struct cmd_function *cmd_functions = NULL;
50 static struct trigger_callback *trigger_callbacks = NULL;
51 static struct ClientSocket *tmp_text_client;
53 static const struct default_language_entry msgtab[] = {
54 {"MODCMD_LESS_PARAM_COUNT", "This command requires more parameters."},
55 {"MODCMD_CHAN_REQUIRED", "You must provide the name of a channel that exists and the bot is on."},
56 {"MODCMD_AUTH_REQUIRED", "You need to be authenticated with AuthServ to use this command."},
57 {"MODCMD_CHAN_SUSPENDED", "This channel is currently suspended."},
58 {"MODCMD_PRIVILEGED", "$b%s$b is a privileged command."}, /* {ARGS: "god"} */
59 {"MODCMD_PUBCMD", "Public commands in $b%s$b are restricted."}, /* {ARGS: "#TestChan"} */
60 {"MODCMD_ACCESS_DENIED", "Access denied."},
64 static int get_binds_index(char first_char) {
65 if(tolower(first_char) >= 'a' && tolower(first_char) <= 'z') {
66 return tolower(first_char) - 'a';
71 struct ClientSocket* get_prefered_bot(int botid) {
72 struct ClientSocket *client, *lowbot = NULL;
73 for(client = getBots(SOCKET_FLAG_READY, NULL); client; client = getBots(SOCKET_FLAG_READY, client)) {
74 if(client->botid == botid) {
75 if((client->flags & SOCKET_FLAG_PREFERRED))
84 static char* get_channel_trigger(int botid, struct ChanNode *chan) {
85 struct trigger_cache *trigger;
86 for(trigger = chan->trigger; trigger; trigger = trigger->next) {
87 if(trigger->botid == botid)
88 return trigger->trigger;
90 struct trigger_callback *cb;
91 for(cb = trigger_callbacks; cb; cb = cb->next) {
92 if(cb->botid == botid)
95 char triggerStr[TRIGGERLEN];
97 cb->func(chan, triggerStr);
99 strcpy(triggerStr, "+");
100 trigger = malloc(sizeof(*trigger));
102 perror("malloc() failed");
105 trigger->botid = botid;
106 trigger->trigger = strdup(triggerStr);
107 trigger->next = chan->trigger;
108 chan->trigger = trigger;
109 return trigger->trigger;
112 static void handle_command_async(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan, struct ChanNode *sent_chan, struct cmd_binding *cbind, char **argv, int argc);
114 static USERAUTH_CALLBACK(command_checked_auth) {
115 struct command_check_user_cache *cache = data;
116 tmp_text_client = cache->textclient;
117 handle_command_async(cache->client, user, cache->chan, cache->sent_chan, cache->cbind, cache->argv, cache->argc);
118 free(cache->message);
122 static void handle_command(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan, char *message) {
123 struct ChanNode *sent_chan = chan;
124 if(message[0] == '#') {
125 char *chanName = message;
126 message = strstr(message, " ");
130 struct ChanNode *chan2 = getChanByName(chanName);
134 message = strdup(message);
135 int bind_index = get_binds_index(message[0]);
136 char *args = strstr(message, " ");
141 struct cmd_binding *cbind;
142 for(cbind = cmd_binds[bind_index]; cbind; cbind = cbind->next) {
143 if(cbind->botid == client->botid && stricmp(cbind->cmd, message) == 0) {
145 tmp_text_client = get_prefered_bot(client->botid);
146 //parse the arguments...
147 char *arga[MAXNUMPARAMS];
152 //skip leading spaces
156 if (argc >= MAXNUMPARAMS)
158 while (*args != ' ' && *args)
163 if(argc != 0 && argv[0][0] == '#' && !(cbind->func->flags & CMDFLAG_CHAN_PARAM)) {
164 struct ChanNode *chan2 = getChanByName(argv[0]);
171 if(cbind->paramcount) {
172 //userdefined parameters...
173 char *uargs[MAXNUMPARAMS];
178 for(i = 0; i < cbind->paramcount; i++) {
179 b = cbind->parameters[i];
182 if(b[strlen(b)-1] == '-') {
184 b[strlen(b)-1] = '\0';
186 b[strlen(b)-1] = '-';
193 uargs[uargc++] = argv[argi-1];
195 for(argi++; argi <= argc; argi++)
196 uargs[uargc++] = argv[argi-1];
199 } else if(!strcmp(b, "c")) {
200 uargs[uargc++] = (chan ? chan->name : NULL);
201 } else if(!strcmp(b, "n")) {
202 uargs[uargc++] = user->nick;
211 if(argc < cbind->func->paramcount) {
212 reply(tmp_text_client, user, "MODCMD_LESS_PARAM_COUNT");
215 if((cbind->func->flags & CMDFLAG_REQUIRE_CHAN) && !chan) {
216 reply(tmp_text_client, user, "MODCMD_CHAN_REQUIRED");
219 if((cbind->func->flags & CMDFLAG_CHECK_AUTH) && !(user->flags & USERFLAG_ISAUTHED)) {
221 struct command_check_user_cache *data = malloc(sizeof(*data));
222 char **temp_argv = malloc(argc*sizeof(*temp_argv));
223 if (!data || !temp_argv) {
224 perror("malloc() failed");
227 memcpy(temp_argv, argv, argc*sizeof(*temp_argv));
228 data->argv = temp_argv;
230 data->client = client;
233 data->sent_chan = sent_chan;
234 data->message = message;
236 data->textclient = tmp_text_client;
237 get_userauth(user, command_checked_auth, data);
240 handle_command_async(client, user, chan, sent_chan, cbind, argv, argc);
247 static void handle_command_async(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan, struct ChanNode *sent_chan, struct cmd_binding *cbind, char **argv, int argc) {
251 int eventflags = (cbind->func->flags & (CMDFLAG_LOG | CMDFLAG_OPLOG));
252 if((cbind->func->flags & CMDFLAG_REQUIRE_AUTH) && !(user->flags & USERFLAG_ISAUTHED)) {
253 reply(tmp_text_client, user, "MODCMD_AUTH_REQUIRED");
256 if(sent_chan && sent_chan != chan) {
257 //check pubcmd of this channel
258 printf_mysql_query("SELECT `channel_pubcmd` FROM `channels` WHERE `channel_name` = '%s'", escape_string(sent_chan->name));
260 if ((row = mysql_fetch_row(res)) != NULL) {
261 uaccess = getChannelAccess(user, sent_chan, 1);
262 if(row[0] && uaccess < atoi(row[0])) { //NOTE: HARDCODED DEFAULT: pubcmd = 0
263 reply(tmp_text_client, user, "MODCMD_PUBCMD", sent_chan->name);
268 int global_access = ((cbind->flags & CMDFLAG_OVERRIDE_GLOBAL_ACCESS) ? cbind->global_access : cbind->func->global_access);
269 if(global_access > 0) {
270 int user_global_access = 0;
271 printf_mysql_query("SELECT `user_access` FROM `users` WHERE `user_user` = '%s'", escape_string(user->auth));
273 if ((row = mysql_fetch_row(res)) != NULL) {
274 user_global_access = atoi(row[0]);
276 if(user_global_access < global_access) {
277 if(!user_global_access)
278 reply(tmp_text_client, user, "MODCMD_PRIVILEGED", cbind->cmd);
280 reply(tmp_text_client, user, "MODCMD_ACCESS_DENIED");
284 if((cbind->func->flags & CMDFLAG_REGISTERED_CHAN)) {
285 MYSQL_ROW defaults = NULL;
286 char access_list[256];
288 int access_count = 0;
290 char *str_a, *str_b = cbind->func->channel_access, *str_c;
291 if(cbind->flags & CMDFLAG_OVERRIDE_CHANNEL_ACCESS)
292 str_b = cbind->channel_access;
293 access_list[0] = '\0';
295 str_c = strdup(str_b);
297 while((str_a = str_b)) {
298 str_b = strstr(str_a, ",");
305 access_pos += sprintf(access_list+access_pos, ", `%s`", str_a);
308 if(atoi(str_a) > minaccess)
309 minaccess = atoi(str_a);
314 if(!(chan->flags & CHANFLAG_REQUESTED_CHANINFO) || (sent_chan && sent_chan == chan) || access_count || minaccess) {
315 printf_mysql_query("SELECT `channel_id`, `channel_pubcmd` %s FROM `channels` WHERE `channel_name` = '%s'", access_list, escape_string(chan->name));
317 if ((row = mysql_fetch_row(res)) != NULL) {
318 chan->flags |= CHANFLAG_CHAN_REGISTERED;
319 chan->channel_id = atoi(row[0]);
320 if((sent_chan && sent_chan == chan) || access_count || minaccess) {
321 uaccess = getChannelAccess(user, chan, 0);
322 if(uaccess < minaccess && isGodMode(user)) {
323 eventflags |= CMDFLAG_OPLOG;
324 } else if(uaccess < minaccess) {
326 reply(tmp_text_client, user, "MODCMD_ACCESS_DENIED");
329 if(!row[1] && !defaults) {
330 printf_mysql_query("SELECT `channel_id`, `channel_pubcmd` %s FROM `channels` WHERE `channel_name` = 'defaults'", access_list);
331 defaults = mysql_fetch_row(mysql_use());
333 if(sent_chan && (sent_chan == chan) && uaccess < (row[1] ? atoi(row[1]) : atoi(defaults[1]))) {
334 if(isGodMode(user)) {
335 eventflags |= CMDFLAG_OPLOG;
338 reply(tmp_text_client, user, "MODCMD_PUBCMD", chan->name);
343 for(i = 0; i < access_count; i++) {
344 if(!row[2+i] && !defaults) {
345 printf_mysql_query("SELECT `channel_id`, `channel_pubcmd` %s FROM `channels` WHERE `channel_name` = 'defaults'", access_list);
346 defaults = mysql_fetch_row(mysql_use());
348 if(uaccess < (row[2+i] ? atoi(row[2+i]) : atoi(defaults[2+i]))) {
349 if(isGodMode(user)) {
350 eventflags |= CMDFLAG_OPLOG;
352 reply(tmp_text_client, user, "MODCMD_ACCESS_DENIED");
359 chan->flags |= CHANFLAG_REQUESTED_CHANINFO;
361 if(!(chan->flags & CHANFLAG_CHAN_REGISTERED)) {
362 reply(tmp_text_client, user, "MODCMD_CHAN_REQUIRED");
365 printf_mysql_query("SELECT `botid`, `suspended` FROM `bot_channels` LEFT JOIN `bots` ON `bot_channels`.`botid` = `bots`.`id` WHERE `chanid` = '%d' AND `botclass` = '%d'", chan->channel_id, client->botid);
367 if ((row = mysql_fetch_row(res)) == NULL) {
368 reply(tmp_text_client, user, "MODCMD_CHAN_REQUIRED");
370 } else if(!strcmp(row[1], "1")) {
371 reply(tmp_text_client, user, "MODCMD_CHAN_SUSPENDED");
375 if((cbind->func->flags & CMDFLAG_REQUIRE_GOD) && !isGodMode(user)) {
376 reply(tmp_text_client, user, "MODCMD_PRIVILEGED", cbind->cmd);
379 struct Event *event = createEvent(client, user, chan, cbind->func->name, argv, argc, eventflags);
380 cbind->func->func(client, user, chan, argv, argc, event);
383 static void got_chanmsg(struct UserNode *user, struct ChanNode *chan, char *message) {
386 struct ClientSocket *client;
388 for(client = getBots(SOCKET_FLAG_READY, NULL); client; client = getBots(SOCKET_FLAG_READY, client)) {
389 if(isUserOnChan(client->user, chan) && (client->flags & SOCKET_FLAG_PREFERRED) && !FD_ISSET(client->botid, &fds)) {
390 FD_SET(client->botid, &fds);
391 trigger = get_channel_trigger(client->botid, chan);
392 if(stricmplen(message, trigger, strlen(trigger)) == 0) {
393 handle_command(client, user, chan, message + strlen(trigger));
397 for(client = getBots(SOCKET_FLAG_READY, NULL); client; client = getBots(SOCKET_FLAG_READY, client)) {
398 if(isUserOnChan(client->user, chan) && !FD_ISSET(client->botid, &fds)) {
399 FD_SET(client->botid, &fds);
400 trigger = get_channel_trigger(client->botid, chan);
401 if(stricmplen(message, trigger, strlen(trigger)) == 0) {
402 handle_command(client, user, chan, message + strlen(trigger));
408 static void got_privmsg(struct UserNode *user, struct UserNode *target, char *message) {
409 struct ClientSocket *client;
410 for(client = getBots(SOCKET_FLAG_READY, NULL); client; client = getBots(SOCKET_FLAG_READY, client)) {
411 if(client->user == target) {
412 handle_command(client, user, NULL, message);
417 int register_command(int botid, char *name, cmd_bind_t *func, int paramcount, char *channel_access, int global_access, unsigned int flags) {
418 struct cmd_function *cmdfunc;
419 for(cmdfunc = cmd_functions; cmdfunc; cmdfunc = cmdfunc->next) {
420 if(cmdfunc->botid == botid && strcmp(cmdfunc->name, name) == 0)
423 cmdfunc = malloc(sizeof(*cmdfunc));
425 perror("malloc() failed");
428 cmdfunc->botid = botid;
429 cmdfunc->name = strdup(name);
430 cmdfunc->func = func;
431 cmdfunc->flags = flags;
432 cmdfunc->paramcount = paramcount;
433 cmdfunc->channel_access = channel_access;
434 cmdfunc->global_access = global_access;
435 cmdfunc->next = cmd_functions;
436 cmd_functions = cmdfunc;
440 int set_trigger_callback(int botid, trigger_callback_t *func) {
441 static struct trigger_callback *cb = NULL;
442 for(cb = trigger_callbacks; cb; cb = cb->next) {
443 if(cb->botid == botid)
447 cb = malloc(sizeof(*cb));
449 perror("malloc() failed");
453 cb->next = trigger_callbacks;
454 trigger_callbacks = cb;
460 int changeChannelTrigger(int botid, struct ChanNode *chan, char *new_trigger) {
461 struct trigger_cache *trigger;
462 for(trigger = chan->trigger; trigger; trigger = trigger->next) {
463 if(trigger->botid == botid) {
464 free(trigger->trigger);
465 trigger->trigger = strdup(new_trigger);
472 int bind_cmd_to_function(int botid, char *cmd, struct cmd_function *func) {
473 int bind_index = get_binds_index(cmd[0]);
474 struct cmd_binding *cbind;
475 for(cbind = cmd_binds[bind_index]; cbind; cbind = cbind->next) {
476 if(cbind->botid == botid && strcmp(cbind->cmd, cmd) == 0)
479 cbind = malloc(sizeof(*cbind));
481 perror("malloc() failed");
484 cbind->botid = botid;
485 cbind->cmd = strdup(cmd);
487 cbind->paramcount = 0;
488 cbind->global_access = 0;
489 cbind->channel_access = NULL;
491 cbind->next = cmd_binds[bind_index];
492 cmd_binds[bind_index] = cbind;
496 int bind_cmd_to_command(int botid, char *cmd, char *func) {
497 struct cmd_function *cmdfunc;
498 for(cmdfunc = cmd_functions; cmdfunc; cmdfunc = cmdfunc->next) {
499 if(cmdfunc->botid == botid && strcmp(cmdfunc->name, func) == 0)
502 if(!cmdfunc) return 0;
503 int bind_index = get_binds_index(cmd[0]);
504 struct cmd_binding *cbind;
505 for(cbind = cmd_binds[bind_index]; cbind; cbind = cbind->next) {
506 if(cbind->botid == botid && strcmp(cbind->cmd, cmd) == 0)
509 cbind = malloc(sizeof(*cbind));
511 perror("malloc() failed");
514 cbind->botid = botid;
515 cbind->cmd = strdup(cmd);
516 cbind->func = cmdfunc;
517 cbind->next = cmd_binds[bind_index];
518 cbind->paramcount = 0;
519 cbind->global_access = 0;
520 cbind->channel_access = NULL;
522 cmd_binds[bind_index] = cbind;
526 int unbind_cmd(int botid, char *cmd) {
527 int bind_index = get_binds_index(cmd[0]);
528 struct cmd_binding *cbind, *last = NULL;
529 for(cbind = cmd_binds[bind_index]; cbind; cbind = cbind->next) {
530 if(cbind->botid == botid && strcmp(cbind->cmd, cmd) == 0) {
532 last->next = cbind->next;
534 cmd_binds[bind_index] = cbind->next;
536 if(cbind->paramcount) {
538 for(i = 0; i < cbind->paramcount; i++)
539 free(cbind->parameters[i]);
549 struct cmd_function *find_cmd_function(int botid, char *name) {
550 struct cmd_function *cmdfunc;
551 for(cmdfunc = cmd_functions; cmdfunc; cmdfunc = cmdfunc->next) {
552 if(cmdfunc->botid == botid && stricmp(cmdfunc->name, name) == 0)
558 struct ClientSocket *getTextBot() {
559 return tmp_text_client;
563 cmd_binds = calloc(27, sizeof(*cmd_binds));
564 bind_chanmsg(got_chanmsg);
565 bind_privmsg(got_privmsg);
566 register_default_language_table(msgtab);
571 for(i = 0; i < 27; i++) {
572 struct cmd_binding *cbind, *next;
573 for(cbind = cmd_binds[i]; cbind; cbind = next) {
576 if(cbind->paramcount) {
578 for(j = 0; j < cbind->paramcount; j++)
579 free(cbind->parameters[j]);
581 if(cbind->channel_access)
582 free(cbind->channel_access);
587 struct cmd_function *cmdfunct, *next;
588 for(cmdfunct = cmd_functions; cmdfunct; cmdfunct = next) {
589 next = cmdfunct->next;
590 free(cmdfunct->name);
593 struct trigger_callback *cb, *next_cb;
594 for(cb = trigger_callbacks; cb; cb = next_cb) {
598 cmd_functions = NULL;
599 trigger_callbacks = NULL;
602 void bind_set_parameters(int botid, char *cmd, char *parameters) {
603 int bind_index = get_binds_index(cmd[0]);
604 struct cmd_binding *cbind;
605 for(cbind = cmd_binds[bind_index]; cbind; cbind = cbind->next) {
606 if(cbind->botid == botid && strcmp(cbind->cmd, cmd) == 0) {
607 if(cbind->paramcount) {
609 for(i = 0; i < cbind->paramcount; i++)
610 free(cbind->parameters[i]);
611 cbind->paramcount = 0;
613 char *a, *b = parameters;
617 cbind->parameters[cbind->paramcount++] = strdup(b);
625 void bind_set_global_access(int botid, char *cmd, int gaccess) {
626 int bind_index = get_binds_index(cmd[0]);
627 struct cmd_binding *cbind;
628 for(cbind = cmd_binds[bind_index]; cbind; cbind = cbind->next) {
629 if(cbind->botid == botid && strcmp(cbind->cmd, cmd) == 0) {
631 cbind->global_access = gaccess;
632 cbind->flags |= CMDFLAG_OVERRIDE_GLOBAL_ACCESS;
634 cbind->flags &= ~CMDFLAG_OVERRIDE_GLOBAL_ACCESS;
641 void bind_set_channel_access(int botid, char *cmd, char *chanaccess) {
642 int bind_index = get_binds_index(cmd[0]);
643 struct cmd_binding *cbind;
644 for(cbind = cmd_binds[bind_index]; cbind; cbind = cbind->next) {
645 if(cbind->botid == botid && strcmp(cbind->cmd, cmd) == 0) {
646 if(cbind->channel_access)
647 free(cbind->channel_access);
649 cbind->channel_access = strdup(chanaccess);
650 cbind->flags |= CMDFLAG_OVERRIDE_CHANNEL_ACCESS;
652 cbind->channel_access = NULL;
653 cbind->flags &= ~CMDFLAG_OVERRIDE_CHANNEL_ACCESS;
660 struct cmd_binding *find_cmd_binding(int botid, char *cmd) {
661 int bind_index = get_binds_index(cmd[0]);
662 struct cmd_binding *cbind;
663 for(cbind = cmd_binds[bind_index]; cbind; cbind = cbind->next) {
664 if(cbind->botid == botid && strcmp(cbind->cmd, cmd) == 0) {