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* Fixed problems related to saving vCards in config rooms. For starters, we were...
[citadel.git] / citadel / modules / chat / serv_chat.c
blob2cf3bb233da43313ae483ffc938af174f9dca7be
1 /*
2 * $Id$
3 *
4 * This module handles all "real time" communication between users. The
5 * modes of communication currently supported are Chat and Paging.
6 *
7 */
8 #include "sysdep.h"
9 #include <stdlib.h>
10 #include <unistd.h>
11 #include <stdio.h>
12 #include <fcntl.h>
13 #include <signal.h>
14 #include <pwd.h>
15 #include <errno.h>
16 #include <sys/types.h>
17
18 #if TIME_WITH_SYS_TIME
19 # include <sys/time.h>
20 # include <time.h>
21 #else
22 # if HAVE_SYS_TIME_H
23 # include <sys/time.h>
24 # else
25 # include <time.h>
26 # endif
27 #endif
28
29 #include <sys/wait.h>
30 #include <string.h>
31 #include <limits.h>
32 #include <libcitadel.h>
33 #include "citadel.h"
34 #include "server.h"
35 #include "serv_chat.h"
36 #include "citserver.h"
37 #include "support.h"
38 #include "config.h"
39 #include "msgbase.h"
40 #include "user_ops.h"
41 #include "room_ops.h"
42
43 #ifndef HAVE_SNPRINTF
44 #include "snprintf.h"
45 #endif
46
47
48 #include "ctdl_module.h"
49
50
51
52 struct ChatLine *ChatQueue = NULL;
53 int ChatLastMsg = 0;
54
55 /*
56 * This message can be set to anything you want, but it is
57 * checked for consistency so don't move it away from here.
58 */
59 #define KICKEDMSG "You have been kicked out of this room."
60
61 void allwrite(char *cmdbuf, int flag, char *username)
62 {
63 FILE *fp;
64 char bcast[SIZ];
65 char *un;
66 struct ChatLine *clptr, *clnew;
67 time_t now;
68
69 if (CC->fake_username[0])
70 un = CC->fake_username;
71 else
72 un = CC->user.fullname;
73 if (flag == 1) {
74 snprintf(bcast, sizeof bcast, ":|<%s %s>", un, cmdbuf);
75 } else if (flag == 0) {
76 snprintf(bcast, sizeof bcast, "%s|%s", un, cmdbuf);
77 } else if (flag == 2) {
78 snprintf(bcast, sizeof bcast, ":|<%s whispers %s>", un, cmdbuf);
79 } else if (flag == 3) {
80 snprintf(bcast, sizeof bcast, ":|%s", KICKEDMSG);
81 }
82 if ((strcasecmp(cmdbuf, "NOOP")) && (flag != 2)) {
83 fp = fopen(CHATLOG, "a");
84 if (fp != NULL)
85 fprintf(fp, "%s\n", bcast);
86 fclose(fp);
87 }
88 clnew = (struct ChatLine *) malloc(sizeof(struct ChatLine));
89 memset(clnew, 0, sizeof(struct ChatLine));
90 if (clnew == NULL) {
91 fprintf(stderr, "citserver: cannot alloc chat line: %s\n",
92 strerror(errno));
93 return;
94 }
95 time(&now);
96 clnew->next = NULL;
97 clnew->chat_time = now;
98 safestrncpy(clnew->chat_room, CC->room.QRname,
99 sizeof clnew->chat_room);
100 clnew->chat_room[sizeof clnew->chat_room - 1] = 0;
101 if (username) {
102 safestrncpy(clnew->chat_username, username,
103 sizeof clnew->chat_username);
104 clnew->chat_username[sizeof clnew->chat_username - 1] = 0;
105 } else
106 clnew->chat_username[0] = '\0';
107 safestrncpy(clnew->chat_text, bcast, sizeof clnew->chat_text);
108
109 /* Here's the critical section.
110 * First, add the new message to the queue...
111 */
112 begin_critical_section(S_CHATQUEUE);
113 ++ChatLastMsg;
114 clnew->chat_seq = ChatLastMsg;
115 if (ChatQueue == NULL) {
116 ChatQueue = clnew;
117 } else {
118 for (clptr = ChatQueue; clptr->next != NULL; clptr = clptr->next);;
119 clptr->next = clnew;
120 }
121
122 /* Then, before releasing the lock, free the expired messages */
123 while ((ChatQueue != NULL) && (now - ChatQueue->chat_time >= 120L)) {
124 clptr = ChatQueue;
125 ChatQueue = ChatQueue->next;
126 free(clptr);
127 }
128 end_critical_section(S_CHATQUEUE);
129 }
130
131
132 t_context *find_context(char **unstr)
133 {
134 t_context *t_cc, *found_cc = NULL;
135 char *name, *tptr;
136
137 if ((!*unstr) || (!unstr))
138 return (NULL);
139
140 begin_critical_section(S_SESSION_TABLE);
141 for (t_cc = ContextList; ((t_cc) && (!found_cc)); t_cc = t_cc->next) {
142 if (t_cc->fake_username[0])
143 name = t_cc->fake_username;
144 else
145 name = t_cc->curr_user;
146 tptr = *unstr;
147 if ((!strncasecmp(name, tptr, strlen(name))) && (tptr[strlen(name)] == ' ')) {
148 found_cc = t_cc;
149 *unstr = &(tptr[strlen(name) + 1]);
150 }
151 }
152 end_critical_section(S_SESSION_TABLE);
153
154 return (found_cc);
155 }
156
157 /*
158 * List users in chat.
159 * allflag == 0 = list users in chat
160 * 1 = list users in chat, followed by users not in chat
161 * 2 = display count only
162 */
163
164 void do_chat_listing(int allflag)
165 {
166 struct CitContext *ccptr;
167 int count = 0;
168 int count_elsewhere = 0;
169 char roomname[ROOMNAMELEN];
170
171 if ((allflag == 0) || (allflag == 1))
172 cprintf(":|\n:| Users currently in chat:\n");
173 begin_critical_section(S_SESSION_TABLE);
174 for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
175 if (ccptr->cs_flags & CS_CHAT) {
176 if (!strcasecmp(ccptr->room.QRname,
177 CC->room.QRname)) {
178 ++count;
179 }
180 else {
181 ++count_elsewhere;
182 }
183 }
184
185 GenerateRoomDisplay(roomname, ccptr, CC);
186 if ((CC->user.axlevel < 6)
187 && (!IsEmptyStr(ccptr->fake_roomname))) {
188 strcpy(roomname, ccptr->fake_roomname);
189 }
190
191 if ((ccptr->cs_flags & CS_CHAT)
192 && ((ccptr->cs_flags & CS_STEALTH) == 0)) {
193 if ((allflag == 0) || (allflag == 1)) {
194 cprintf(":| %-25s <%s>:\n",
195 (ccptr->fake_username[0]) ? ccptr->fake_username : ccptr->curr_user,
196 roomname);
197 }
198 }
199 }
200
201 if (allflag == 1) {
202 cprintf(":|\n:| Users not in chat:\n");
203 for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
204
205 GenerateRoomDisplay(roomname, ccptr, CC);
206 if ((CC->user.axlevel < 6)
207 && (!IsEmptyStr(ccptr->fake_roomname))) {
208 strcpy(roomname, ccptr->fake_roomname);
209 }
210
211 if (((ccptr->cs_flags & CS_CHAT) == 0)
212 && ((ccptr->cs_flags & CS_STEALTH) == 0)) {
213 cprintf(":| %-25s <%s>:\n",
214 (ccptr->fake_username[0]) ? ccptr->fake_username : ccptr->curr_user,
215 roomname);
216 }
217 }
218 }
219 end_critical_section(S_SESSION_TABLE);
220
221 if (allflag == 2) {
222 if (count > 1) {
223 cprintf(":|There are %d users here.\n", count);
224 }
225 else {
226 cprintf(":|Note: you are the only one here.\n");
227 }
228 if (count_elsewhere > 0) {
229 cprintf(":|There are %d users chatting in other rooms.\n", count_elsewhere);
230 }
231 }
232
233 cprintf(":|\n");
234 }
235
236
237 void cmd_chat(char *argbuf)
238 {
239 char cmdbuf[SIZ];
240 char *un;
241 char *strptr1;
242 int MyLastMsg, ThisLastMsg;
243 struct ChatLine *clptr;
244 struct CitContext *t_context;
245 int retval;
246
247 if (!(CC->logged_in)) {
248 cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
249 return;
250 }
251
252 CC->cs_flags = CC->cs_flags | CS_CHAT;
253 cprintf("%d Entering chat mode (type '/help' for available commands)\n",
254 START_CHAT_MODE);
255 unbuffer_output();
256
257 MyLastMsg = ChatLastMsg;
258
259 if ((CC->cs_flags & CS_STEALTH) == 0) {
260 allwrite("<entering chat>", 0, NULL);
261 }
262 strcpy(cmdbuf, "");
263
264 do_chat_listing(2);
265
266 while (1) {
267 int ok_cmd;
268 int linelen;
269
270 ok_cmd = 0;
271 linelen = strlen(cmdbuf);
272 if (linelen > 100) --linelen; /* truncate too-long lines */
273 cmdbuf[linelen + 1] = 0;
274
275 retval = client_read_to(&cmdbuf[linelen], 1, 2);
276
277 if (retval < 0 || CC->kill_me) { /* socket broken? */
278 if ((CC->cs_flags & CS_STEALTH) == 0) {
279 allwrite("<disconnected>", 0, NULL);
280 }
281 return;
282 }
283
284 /* if we have a complete line, do send processing */
285 if (!IsEmptyStr(cmdbuf))
286 if (cmdbuf[strlen(cmdbuf) - 1] == 10) {
287 cmdbuf[strlen(cmdbuf) - 1] = 0;
288 time(&CC->lastcmd);
289 time(&CC->lastidle);
290
291 if ((!strcasecmp(cmdbuf, "exit"))
292 || (!strcasecmp(cmdbuf, "/exit"))
293 || (!strcasecmp(cmdbuf, "quit"))
294 || (!strcasecmp(cmdbuf, "logout"))
295 || (!strcasecmp(cmdbuf, "logoff"))
296 || (!strcasecmp(cmdbuf, "/q"))
297 || (!strcasecmp(cmdbuf, ".q"))
298 || (!strcasecmp(cmdbuf, "/quit"))
299 )
300 strcpy(cmdbuf, "000");
301
302 if (!strcmp(cmdbuf, "000")) {
303 if ((CC->cs_flags & CS_STEALTH) == 0) {
304 allwrite("<exiting chat>", 0, NULL);
305 }
306 sleep(1);
307 cprintf("000\n");
308 CC->cs_flags = CC->cs_flags - CS_CHAT;
309 return;
310 }
311 if ((!strcasecmp(cmdbuf, "/help"))
312 || (!strcasecmp(cmdbuf, "help"))
313 || (!strcasecmp(cmdbuf, "/?"))
314 || (!strcasecmp(cmdbuf, "?"))) {
315 cprintf(":|\n");
316 cprintf(":|Available commands: \n");
317 cprintf(":|/help (prints this message) \n");
318 cprintf(":|/who (list users currently in chat) \n");
319 cprintf(":|/whobbs (list users in chat -and- elsewhere) \n");
320 cprintf(":|/me ('action' line, ala irc) \n");
321 cprintf(":|/msg (send private message, ala irc) \n");
322 if (is_room_aide()) {
323 cprintf(":|/kick (kick another user out of this room) \n");
324 }
325 cprintf(":|/quit (exit from this chat) \n");
326 cprintf(":|\n");
327 ok_cmd = 1;
328 }
329 if (!strcasecmp(cmdbuf, "/who")) {
330 do_chat_listing(0);
331 ok_cmd = 1;
332 }
333 if (!strcasecmp(cmdbuf, "/whobbs")) {
334 do_chat_listing(1);
335 ok_cmd = 1;
336 }
337 if (!strncasecmp(cmdbuf, "/me ", 4)) {
338 allwrite(&cmdbuf[4], 1, NULL);
339 ok_cmd = 1;
340 }
341 if (!strncasecmp(cmdbuf, "/msg ", 5)) {
342 ok_cmd = 1;
343 strptr1 = &cmdbuf[5];
344 if ((t_context = find_context(&strptr1))) {
345 allwrite(strptr1, 2, CC->curr_user);
346 if (strcasecmp(CC->curr_user, t_context->curr_user))
347 allwrite(strptr1, 2, t_context->curr_user);
348 } else
349 cprintf(":|User not found.\n");
350 cprintf("\n");
351 }
352 /* The /kick function is implemented by sending a specific
353 * message to the kicked-out user's context. When that message
354 * is processed by the read loop, that context will exit.
355 */
356 if ( (!strncasecmp(cmdbuf, "/kick ", 6)) && (is_room_aide()) ) {
357 ok_cmd = 1;
358 strptr1 = &cmdbuf[6];
359 strcat(strptr1, " ");
360 if ((t_context = find_context(&strptr1))) {
361 if (strcasecmp(CC->curr_user, t_context->curr_user))
362 allwrite(strptr1, 3, t_context->curr_user);
363 } else
364 cprintf(":|User not found.\n");
365 cprintf("\n");
366 }
367 if ((cmdbuf[0] != '/') && (strlen(cmdbuf) > 0)) {
368 ok_cmd = 1;
369 allwrite(cmdbuf, 0, NULL);
370 }
371 if ((!ok_cmd) && (cmdbuf[0]) && (cmdbuf[0] != '\n'))
372 cprintf(":|Command %s is not understood.\n", cmdbuf);
373
374 strcpy(cmdbuf, "");
375
376 }
377 /* now check the queue for new incoming stuff */
378
379 if (CC->fake_username[0])
380 un = CC->fake_username;
381 else
382 un = CC->curr_user;
383 if (ChatLastMsg > MyLastMsg) {
384 ThisLastMsg = ChatLastMsg;
385 for (clptr = ChatQueue; clptr != NULL; clptr = clptr->next) {
386 if ((clptr->chat_seq > MyLastMsg) && ((!clptr->chat_username[0]) || (!strncasecmp(un, clptr->chat_username, 32)))) {
387 if ((!clptr->chat_room[0]) || (!strncasecmp(CC->room.QRname, clptr->chat_room, ROOMNAMELEN))) {
388 /* Output new chat data */
389 cprintf("%s\n", clptr->chat_text);
390
391 /* See if we've been force-quitted (kicked etc.) */
392 if (!strcmp(&clptr->chat_text[2], KICKEDMSG)) {
393 allwrite("<kicked out of this room>", 0, NULL);
394 cprintf("000\n");
395 CC->cs_flags = CC->cs_flags - CS_CHAT;
396
397 /* Kick user out of room */
398 CtdlInvtKick(CC->user.fullname, 0);
399
400 /* And return to the Lobby */
401 usergoto(config.c_baseroom, 0, 0, NULL, NULL);
402 return;
403 }
404 }
405 }
406 }
407 MyLastMsg = ThisLastMsg;
408 }
409 }
410 }
411
412
413
414 /*
415 * Delete any remaining instant messages
416 */
417 void delete_instant_messages(void) {
418 struct ExpressMessage *ptr;
419
420 begin_critical_section(S_SESSION_TABLE);
421 while (CC->FirstExpressMessage != NULL) {
422 ptr = CC->FirstExpressMessage->next;
423 if (CC->FirstExpressMessage->text != NULL)
424 free(CC->FirstExpressMessage->text);
425 free(CC->FirstExpressMessage);
426 CC->FirstExpressMessage = ptr;
427 }
428 end_critical_section(S_SESSION_TABLE);
429 }
430
431
432
433
434 /*
435 * Poll for instant messages (OLD METHOD -- ***DEPRECATED ***)
436 */
437 void cmd_pexp(char *argbuf)
438 {
439 struct ExpressMessage *ptr, *holdptr;
440
441 if (CC->FirstExpressMessage == NULL) {
442 cprintf("%d No instant messages waiting.\n", ERROR + MESSAGE_NOT_FOUND);
443 return;
444 }
445 begin_critical_section(S_SESSION_TABLE);
446 ptr = CC->FirstExpressMessage;
447 CC->FirstExpressMessage = NULL;
448 end_critical_section(S_SESSION_TABLE);
449
450 cprintf("%d Express msgs:\n", LISTING_FOLLOWS);
451 while (ptr != NULL) {
452 if (ptr->flags && EM_BROADCAST)
453 cprintf("Broadcast message ");
454 else if (ptr->flags && EM_CHAT)
455 cprintf("Chat request ");
456 else if (ptr->flags && EM_GO_AWAY)
457 cprintf("Please logoff now, as requested ");
458 else
459 cprintf("Message ");
460 cprintf("from %s:\n", ptr->sender);
461 if (ptr->text != NULL)
462 memfmout(ptr->text, 0, "\n");
463
464 holdptr = ptr->next;
465 if (ptr->text != NULL) free(ptr->text);
466 free(ptr);
467 ptr = holdptr;
468 }
469 cprintf("000\n");
470 }
471
472
473 /*
474 * Get instant messages (new method)
475 */
476 void cmd_gexp(char *argbuf) {
477 struct ExpressMessage *ptr;
478
479 if (CC->FirstExpressMessage == NULL) {
480 cprintf("%d No instant messages waiting.\n", ERROR + MESSAGE_NOT_FOUND);
481 return;
482 }
483
484 begin_critical_section(S_SESSION_TABLE);
485 ptr = CC->FirstExpressMessage;
486 CC->FirstExpressMessage = CC->FirstExpressMessage->next;
487 end_critical_section(S_SESSION_TABLE);
488
489 cprintf("%d %d|%ld|%d|%s|%s|%s\n",
490 LISTING_FOLLOWS,
491 ((ptr->next != NULL) ? 1 : 0), /* more msgs? */
492 (long)ptr->timestamp, /* time sent */
493 ptr->flags, /* flags */
494 ptr->sender, /* sender of msg */
495 config.c_nodename, /* static for now (and possibly deprecated) */
496 ptr->sender_email /* email or jid of sender */
497 );
498
499 if (ptr->text != NULL) {
500 memfmout(ptr->text, 0, "\n");
501 if (ptr->text[strlen(ptr->text)-1] != '\n') cprintf("\n");
502 free(ptr->text);
503 }
504
505 cprintf("000\n");
506 free(ptr);
507 }
508
509 /*
510 * Asynchronously deliver instant messages
511 */
512 void cmd_gexp_async(void) {
513
514 /* Only do this if the session can handle asynchronous protocol */
515 if (CC->is_async == 0) return;
516
517 /* And don't do it if there's nothing to send. */
518 if (CC->FirstExpressMessage == NULL) return;
519
520 cprintf("%d instant msg\n", ASYNC_MSG + ASYNC_GEXP);
521 }
522
523 /*
524 * Back end support function for send_instant_message() and company
525 */
526 void add_xmsg_to_context(struct CitContext *ccptr,
527 struct ExpressMessage *newmsg)
528 {
529 struct ExpressMessage *findend;
530
531 if (ccptr->FirstExpressMessage == NULL) {
532 ccptr->FirstExpressMessage = newmsg;
533 }
534 else {
535 findend = ccptr->FirstExpressMessage;
536 while (findend->next != NULL) {
537 findend = findend->next;
538 }
539 findend->next = newmsg;
540 }
541
542 /* If the target context is a session which can handle asynchronous
543 * messages, go ahead and set the flag for that.
544 */
545 if (ccptr->is_async) {
546 ccptr->async_waiting = 1;
547 if (ccptr->state == CON_IDLE) {
548 ccptr->state = CON_READY;
549 }
550 }
551 }
552
553
554
555
556 /*
557 * This is the back end to the instant message sending function.
558 * Returns the number of users to which the message was sent.
559 * Sending a zero-length message tests for recipients without sending messages.
560 */
561 int send_instant_message(char *lun, char *lem, char *x_user, char *x_msg)
562 {
563 int message_sent = 0; /* number of successful sends */
564 struct CitContext *ccptr;
565 struct ExpressMessage *newmsg;
566 char *un;
567 size_t msglen = 0;
568 int do_send = 0; /* set to 1 to actually page, not
569 * just check to see if we can.
570 */
571 struct savelist *sl = NULL; /* list of rooms to save this page */
572 struct savelist *sptr;
573 struct CtdlMessage *logmsg = NULL;
574 long msgnum;
575
576 if (strlen(x_msg) > 0) {
577 msglen = strlen(x_msg) + 4;
578 do_send = 1;
579 }
580
581 /* find the target user's context and append the message */
582 begin_critical_section(S_SESSION_TABLE);
583 for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
584
585 if (ccptr->fake_username[0]) {
586 un = ccptr->fake_username;
587 }
588 else {
589 un = ccptr->user.fullname;
590 }
591
592 if ( ((!strcasecmp(un, x_user))
593 || (!strcasecmp(x_user, "broadcast")))
594 && ((ccptr->disable_exp == 0)
595 || (CC->user.axlevel >= 6)) ) {
596 if (do_send) {
597 newmsg = (struct ExpressMessage *)
598 malloc(sizeof (struct ExpressMessage));
599 memset(newmsg, 0,
600 sizeof (struct ExpressMessage));
601 time(&(newmsg->timestamp));
602 safestrncpy(newmsg->sender, lun, sizeof newmsg->sender);
603 safestrncpy(newmsg->sender_email, lem, sizeof newmsg->sender_email);
604 if (!strcasecmp(x_user, "broadcast")) {
605 newmsg->flags |= EM_BROADCAST;
606 }
607 newmsg->text = strdup(x_msg);
608
609 add_xmsg_to_context(ccptr, newmsg);
610
611 /* and log it ... */
612 if (ccptr != CC) {
613 sptr = (struct savelist *)
614 malloc(sizeof(struct savelist));
615 sptr->next = sl;
616 MailboxName(sptr->roomname,
617 sizeof sptr->roomname,
618 &ccptr->user, PAGELOGROOM);
619 sl = sptr;
620 }
621 }
622 ++message_sent;
623 }
624 }
625 end_critical_section(S_SESSION_TABLE);
626
627 /* Log the page to disk if configured to do so */
628 if ( (do_send) && (message_sent) ) {
629
630 logmsg = malloc(sizeof(struct CtdlMessage));
631 memset(logmsg, 0, sizeof(struct CtdlMessage));
632 logmsg->cm_magic = CTDLMESSAGE_MAGIC;
633 logmsg->cm_anon_type = MES_NORMAL;
634 logmsg->cm_format_type = 0;
635 logmsg->cm_fields['A'] = strdup(lun);
636 logmsg->cm_fields['F'] = strdup(lem);
637 logmsg->cm_fields['N'] = strdup(NODENAME);
638 logmsg->cm_fields['O'] = strdup(PAGELOGROOM);
639 logmsg->cm_fields['R'] = strdup(x_user);
640 logmsg->cm_fields['M'] = strdup(x_msg);
641
642
643 /* Save a copy of the message in the sender's log room,
644 * creating the room if necessary.
645 */
646 create_room(PAGELOGROOM, 4, "", 0, 1, 0, VIEW_BBS);
647 msgnum = CtdlSubmitMsg(logmsg, NULL, PAGELOGROOM, 0);
648
649 /* Now save a copy in the global log room, if configured */
650 if (!IsEmptyStr(config.c_logpages)) {
651 create_room(config.c_logpages, 3, "", 0, 1, 1, VIEW_BBS);
652 CtdlSaveMsgPointerInRoom(config.c_logpages, msgnum, 0, NULL);
653 }
654
655 /* Save a copy in each recipient's log room, creating those
656 * rooms if necessary. Note that we create as a type 5 room
657 * rather than 4, which indicates that it's a personal room
658 * but we've already supplied the namespace prefix.
659 */
660 while (sl != NULL) {
661 create_room(sl->roomname, 5, "", 0, 1, 1, VIEW_BBS);
662 CtdlSaveMsgPointerInRoom(sl->roomname, msgnum, 0, NULL);
663 sptr = sl->next;
664 free(sl);
665 sl = sptr;
666 }
667
668 CtdlFreeMessage(logmsg);
669 }
670
671 return (message_sent);
672 }
673
674 /*
675 * send instant messages
676 */
677 void cmd_sexp(char *argbuf)
678 {
679 int message_sent = 0;
680 char x_user[USERNAME_SIZE];
681 char x_msg[1024];
682 char *lun;
683 char *lem;
684 char *x_big_msgbuf = NULL;
685
686 if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
687 cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
688 return;
689 }
690 if (CC->fake_username[0])
691 lun = CC->fake_username;
692 else
693 lun = CC->user.fullname;
694
695 lem = CC->cs_inet_email;
696
697 extract_token(x_user, argbuf, 0, '|', sizeof x_user);
698 extract_token(x_msg, argbuf, 1, '|', sizeof x_msg);
699
700 if (!x_user[0]) {
701 cprintf("%d You were not previously paged.\n", ERROR + NO_SUCH_USER);
702 return;
703 }
704 if ((!strcasecmp(x_user, "broadcast")) && (CC->user.axlevel < 6)) {
705 cprintf("%d Higher access required to send a broadcast.\n",
706 ERROR + HIGHER_ACCESS_REQUIRED);
707 return;
708 }
709 /* This loop handles text-transfer pages */
710 if (!strcmp(x_msg, "-")) {
711 message_sent = PerformXmsgHooks(lun, lem, x_user, "");
712 if (message_sent == 0) {
713 if (getuser(NULL, x_user))
714 cprintf("%d '%s' does not exist.\n",
715 ERROR + NO_SUCH_USER, x_user);
716 else
717 cprintf("%d '%s' is not logged in "
718 "or is not accepting pages.\n",
719 ERROR + RESOURCE_NOT_OPEN, x_user);
720 return;
721 }
722 unbuffer_output();
723 cprintf("%d Transmit message (will deliver to %d users)\n",
724 SEND_LISTING, message_sent);
725 x_big_msgbuf = malloc(SIZ);
726 memset(x_big_msgbuf, 0, SIZ);
727 while (client_getln(x_msg, sizeof x_msg) >= 0 && strcmp(x_msg, "000")) {
728 x_big_msgbuf = realloc(x_big_msgbuf,
729 strlen(x_big_msgbuf) + strlen(x_msg) + 4);
730 if (!IsEmptyStr(x_big_msgbuf))
731 if (x_big_msgbuf[strlen(x_big_msgbuf)] != '\n')
732 strcat(x_big_msgbuf, "\n");
733 strcat(x_big_msgbuf, x_msg);
734 }
735 PerformXmsgHooks(lun, lem, x_user, x_big_msgbuf);
736 free(x_big_msgbuf);
737
738 /* This loop handles inline pages */
739 } else {
740 message_sent = PerformXmsgHooks(lun, lem, x_user, x_msg);
741
742 if (message_sent > 0) {
743 if (!IsEmptyStr(x_msg))
744 cprintf("%d Message sent", CIT_OK);
745 else
746 cprintf("%d Ok to send message", CIT_OK);
747 if (message_sent > 1)
748 cprintf(" to %d users", message_sent);
749 cprintf(".\n");
750 } else {
751 if (getuser(NULL, x_user))
752 cprintf("%d '%s' does not exist.\n",
753 ERROR + NO_SUCH_USER, x_user);
754 else
755 cprintf("%d '%s' is not logged in "
756 "or is not accepting pages.\n",
757 ERROR + RESOURCE_NOT_OPEN, x_user);
758 }
759
760
761 }
762 }
763
764
765
766 /*
767 * Enter or exit paging-disabled mode
768 */
769 void cmd_dexp(char *argbuf)
770 {
771 int new_state;
772
773 if (CtdlAccessCheck(ac_logged_in)) return;
774
775 new_state = extract_int(argbuf, 0);
776 if ((new_state == 0) || (new_state == 1)) {
777 CC->disable_exp = new_state;
778 }
779
780 cprintf("%d %d\n", CIT_OK, CC->disable_exp);
781 }
782
783
784 /*
785 * Request client termination
786 */
787 void cmd_reqt(char *argbuf) {
788 struct CitContext *ccptr;
789 int sessions = 0;
790 int which_session;
791 struct ExpressMessage *newmsg;
792
793 if (CtdlAccessCheck(ac_aide)) return;
794 which_session = extract_int(argbuf, 0);
795
796 begin_critical_section(S_SESSION_TABLE);
797 for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
798 if ((ccptr->cs_pid == which_session) || (which_session == 0)) {
799
800 newmsg = (struct ExpressMessage *)
801 malloc(sizeof (struct ExpressMessage));
802 memset(newmsg, 0,
803 sizeof (struct ExpressMessage));
804 time(&(newmsg->timestamp));
805 safestrncpy(newmsg->sender, CC->user.fullname,
806 sizeof newmsg->sender);
807 newmsg->flags |= EM_GO_AWAY;
808 newmsg->text = strdup("Automatic logoff requested.");
809
810 add_xmsg_to_context(ccptr, newmsg);
811 ++sessions;
812
813 }
814 }
815 end_critical_section(S_SESSION_TABLE);
816 cprintf("%d Sent termination request to %d sessions.\n", CIT_OK, sessions);
817 }
818
819
820
821 CTDL_MODULE_INIT(chat)
822 {
823 if (!threading)
824 {
825 CtdlRegisterProtoHook(cmd_chat, "CHAT", "Begin real-time chat");
826 CtdlRegisterProtoHook(cmd_pexp, "PEXP", "Poll for instant messages");
827 CtdlRegisterProtoHook(cmd_gexp, "GEXP", "Get instant messages");
828 CtdlRegisterProtoHook(cmd_sexp, "SEXP", "Send an instant message");
829 CtdlRegisterProtoHook(cmd_dexp, "DEXP", "Disable instant messages");
830 CtdlRegisterProtoHook(cmd_reqt, "REQT", "Request client termination");
831 CtdlRegisterSessionHook(cmd_gexp_async, EVT_ASYNC);
832 CtdlRegisterSessionHook(delete_instant_messages, EVT_STOP);
833 CtdlRegisterXmsgHook(send_instant_message, XMSG_PRI_LOCAL);
834 }
835
836 /* return our Subversion id for the Log */
837 return "$Id$";
838 }
839
Sam's citadel repo