citadel/room_ops.c

   1 /*
   2  * Server functions which perform operations on room objects.
   3  *
   4  * Copyright (c) 1987-2011 by the citadel.org team
   5  *
   6  * This program is open source software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19  */
  20
  21 #include "sysdep.h"
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24 #include <stdio.h>
  25 #include <sys/stat.h>
  26 #include <ctype.h>
  27 #include <string.h>
  28 #include <dirent.h>     /* for cmd_rdir to read contents of the directory */
  29
  30 #if TIME_WITH_SYS_TIME
  31 # include <sys/time.h>
  32 # include <time.h>
  33 #else
  34 # if HAVE_SYS_TIME_H
  35 #  include <sys/time.h>
  36 # else
  37 #  include <time.h>
  38 # endif
  39 #endif
  40
  41 #include <limits.h>
  42 #include <errno.h>
  43 #include "citadel.h"
  44 #include <libcitadel.h>
  45 #include "server.h"
  46 #include "database.h"
  47 #include "config.h"
  48 #include "room_ops.h"
  49 #include "sysdep_decls.h"
  50 #include "support.h"
  51 #include "msgbase.h"
  52 #include "citserver.h"
  53 #include "control.h"
  54 #include "citadel_dirs.h"
  55 #include "threads.h"
  56
  57 #include "ctdl_module.h"
  58 #include "user_ops.h"
  59
  60 struct floor *floorcache[MAXFLOORS];
  61
  62 /*
  63  * Retrieve access control information for any user/room pair
  64  */
  65 void CtdlRoomAccess(struct ctdlroom *roombuf, struct ctdluser *userbuf,
  66                 int *result, int *view)
  67 {
  68         int retval = 0;
  69         visit vbuf;
  70         int is_me = 0;
  71         int is_guest = 0;
  72
  73         if (userbuf == &CC->user) {
  74                 is_me = 1;
  75         }
  76
  77         if ((is_me) && (config.c_guest_logins) && (!CC->logged_in)) {
  78                 is_guest = 1;
  79         }
  80
  81         /* for internal programs, always do everything */
  82         if (((CC->internal_pgm)) && (roombuf->QRflags & QR_INUSE)) {
  83                 retval = (UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED);
  84                 vbuf.v_view = 0;
  85                 goto SKIP_EVERYTHING;
  86         }
  87
  88         /* If guest mode is enabled, always grant access to the Lobby */
  89         if ((is_guest) && (!strcasecmp(roombuf->QRname, BASEROOM))) {
  90                 retval = (UA_KNOWN | UA_GOTOALLOWED);
  91                 vbuf.v_view = 0;
  92                 goto SKIP_EVERYTHING;
  93         }
  94
  95         /* Locate any applicable user/room relationships */
  96         if (is_guest) {
  97                 memset(&vbuf, 0, sizeof vbuf);
  98         }
  99         else {
 100                 CtdlGetRelationship(&vbuf, userbuf, roombuf);
 101         }
 102
 103         /* Force the properties of the Aide room */
 104         if (!strcasecmp(roombuf->QRname, config.c_aideroom)) {
 105                 if (userbuf->axlevel >= AxAideU) {
 106                         retval = UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED;
 107                 } else {
 108                         retval = 0;
 109                 }
 110                 goto NEWMSG;
 111         }
 112
 113         /* If this is a public room, it's accessible... */
 114         if (    ((roombuf->QRflags & QR_PRIVATE) == 0)
 115                 && ((roombuf->QRflags & QR_MAILBOX) == 0)
 116         ) {
 117                 retval = retval | UA_KNOWN | UA_GOTOALLOWED;
 118         }
 119
 120         /* If this is a preferred users only room, check access level */
 121         if (roombuf->QRflags & QR_PREFONLY) {
 122                 if (userbuf->axlevel < AxPrefU) {
 123                         retval = retval & ~UA_KNOWN & ~UA_GOTOALLOWED;
 124                 }
 125         }
 126
 127         /* For private rooms, check the generation number matchups */
 128         if (    (roombuf->QRflags & QR_PRIVATE)
 129                 && ((roombuf->QRflags & QR_MAILBOX) == 0)
 130         ) {
 131
 132                 /* An explicit match means the user belongs in this room */
 133                 if (vbuf.v_flags & V_ACCESS) {
 134                         retval = retval | UA_KNOWN | UA_GOTOALLOWED;
 135                 }
 136                 /* Otherwise, check if this is a guess-name or passworded
 137                  * room.  If it is, a goto may at least be attempted
 138                  */
 139                 else if (       (roombuf->QRflags & QR_PRIVATE)
 140                                 || (roombuf->QRflags & QR_PASSWORDED)
 141                 ) {
 142                         retval = retval & ~UA_KNOWN;
 143                         retval = retval | UA_GOTOALLOWED;
 144                 }
 145         }
 146
 147         /* For mailbox rooms, also check the namespace */
 148         /* Also, mailbox owners can delete their messages */
 149         if ( (roombuf->QRflags & QR_MAILBOX) && (atol(roombuf->QRname) != 0)) {
 150                 if (userbuf->usernum == atol(roombuf->QRname)) {
 151                         retval = retval | UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED;
 152                 }
 153                 /* An explicit match means the user belongs in this room */
 154                 if (vbuf.v_flags & V_ACCESS) {
 155                         retval = retval | UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED;
 156                 }
 157         }
 158
 159         /* For non-mailbox rooms... */
 160         else {
 161
 162                 /* User is allowed to post in the room unless:
 163                  * - User is not validated
 164                  * - User has no net privileges and it is a shared network room
 165                  * - It is a read-only room
 166                  * - It is a blog room (in which case we only allow replies to existing messages)
 167                  */
 168                 int post_allowed = 1;
 169                 int reply_allowed = 1;
 170                 if (userbuf->axlevel < AxProbU) {
 171                         post_allowed = 0;
 172                         reply_allowed = 0;
 173                 }
 174                 if ((userbuf->axlevel < AxNetU) && (roombuf->QRflags & QR_NETWORK)) {
 175                         post_allowed = 0;
 176                         reply_allowed = 0;
 177                 }
 178                 if (roombuf->QRflags & QR_READONLY) {
 179                         post_allowed = 0;
 180                         reply_allowed = 0;
 181                 }
 182                 if (roombuf->QRdefaultview == VIEW_BLOG) {
 183                         post_allowed = 0;
 184                 }
 185                 if (post_allowed) {
 186                         retval = retval | UA_POSTALLOWED | UA_REPLYALLOWED;
 187                 }
 188                 if (reply_allowed) {
 189                         retval = retval | UA_REPLYALLOWED;
 190                 }
 191
 192                 /* If "collaborative deletion" is active for this room, any user who can post
 193                  * is also allowed to delete
 194                  */
 195                 if (roombuf->QRflags2 & QR2_COLLABDEL) {
 196                         if (retval & UA_POSTALLOWED) {
 197                                 retval = retval | UA_DELETEALLOWED;
 198                         }
 199                 }
 200
 201         }
 202
 203         /* Check to see if the user has forgotten this room */
 204         if (vbuf.v_flags & V_FORGET) {
 205                 retval = retval & ~UA_KNOWN;
 206                 if (    ( ((roombuf->QRflags & QR_PRIVATE) == 0)
 207                         && ((roombuf->QRflags & QR_MAILBOX) == 0)
 208                 ) || (  (roombuf->QRflags & QR_MAILBOX)
 209                         && (atol(roombuf->QRname) == CC->user.usernum))
 210                 ) {
 211                         retval = retval | UA_ZAPPED;
 212                 }
 213         }
 214
 215         /* If user is explicitly locked out of this room, deny everything */
 216         if (vbuf.v_flags & V_LOCKOUT) {
 217                 retval = retval & ~UA_KNOWN & ~UA_GOTOALLOWED & ~UA_POSTALLOWED & ~UA_REPLYALLOWED;
 218         }
 219
 220         /* Aides get access to all private rooms */
 221         if (    (userbuf->axlevel >= AxAideU)
 222                 && ((roombuf->QRflags & QR_MAILBOX) == 0)
 223         ) {
 224                 if (vbuf.v_flags & V_FORGET) {
 225                         retval = retval | UA_GOTOALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 226                 }
 227                 else {
 228                         retval = retval | UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 229                 }
 230         }
 231
 232         /* Aides can gain access to mailboxes as well, but they don't show
 233          * by default.
 234          */
 235         if (    (userbuf->axlevel >= AxAideU)
 236                 && (roombuf->QRflags & QR_MAILBOX)
 237         ) {
 238                 retval = retval | UA_GOTOALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 239         }
 240
 241         /* Aides and Room Aides have admin privileges */
 242         if (    (userbuf->axlevel >= AxAideU)
 243                 || (userbuf->usernum == roombuf->QRroomaide)
 244         ) {
 245                 retval = retval | UA_ADMINALLOWED | UA_DELETEALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 246         }
 247
 248 NEWMSG: /* By the way, we also check for the presence of new messages */
 249         if (is_msg_in_sequence_set(vbuf.v_seen, roombuf->QRhighest) == 0) {
 250                 retval = retval | UA_HASNEWMSGS;
 251         }
 252
 253         /* System rooms never show up in the list. */
 254         if (roombuf->QRflags2 & QR2_SYSTEM) {
 255                 retval = retval & ~UA_KNOWN;
 256         }
 257
 258 SKIP_EVERYTHING:
 259         /* Now give the caller the information it wants. */
 260         if (result != NULL) *result = retval;
 261         if (view != NULL) *view = vbuf.v_view;
 262 }
 263
 264 /*
 265  * Self-checking stuff for a room record read into memory
 266  */
 267 void room_sanity_check(struct ctdlroom *qrbuf)
 268 {
 269         /* Mailbox rooms are always on the lowest floor */
 270         if (qrbuf->QRflags & QR_MAILBOX) {
 271                 qrbuf->QRfloor = 0;
 272         }
 273         /* Listing order of 0 is illegal except for base rooms */
 274         if (qrbuf->QRorder == 0)
 275                 if (!(qrbuf->QRflags & QR_MAILBOX) &&
 276                     strncasecmp(qrbuf->QRname, config.c_baseroom, ROOMNAMELEN)
 277                     &&
 278                     strncasecmp(qrbuf->QRname, config.c_aideroom, ROOMNAMELEN))
 279                         qrbuf->QRorder = 64;
 280 }
 281
 282
 283 /*
 284  * CtdlGetRoom()  -  retrieve room data from disk
 285  */
 286 int CtdlGetRoom(struct ctdlroom *qrbuf, char *room_name)
 287 {
 288         struct cdbdata *cdbqr;
 289         char lowercase_name[ROOMNAMELEN];
 290         char personal_lowercase_name[ROOMNAMELEN];
 291         char *dptr, *sptr, *eptr;
 292
 293         dptr = lowercase_name;
 294         sptr = room_name;
 295         eptr = (dptr + (sizeof lowercase_name - 1));
 296         while (!IsEmptyStr(sptr) && (dptr < eptr)){
 297                 *dptr = tolower(*sptr);
 298                 sptr++; dptr++;
 299         }
 300         *dptr = '\0';
 301
 302         memset(qrbuf, 0, sizeof(struct ctdlroom));
 303
 304         /* First, try the public namespace */
 305         cdbqr = cdb_fetch(CDB_ROOMS,
 306                           lowercase_name, strlen(lowercase_name));
 307
 308         /* If that didn't work, try the user's personal namespace */
 309         if (cdbqr == NULL) {
 310                 snprintf(personal_lowercase_name,
 311                          sizeof personal_lowercase_name, "%010ld.%s",
 312                          CC->user.usernum, lowercase_name);
 313                 cdbqr = cdb_fetch(CDB_ROOMS,
 314                                   personal_lowercase_name,
 315                                   strlen(personal_lowercase_name));
 316         }
 317         if (cdbqr != NULL) {
 318                 memcpy(qrbuf, cdbqr->ptr,
 319                        ((cdbqr->len > sizeof(struct ctdlroom)) ?
 320                         sizeof(struct ctdlroom) : cdbqr->len));
 321                 cdb_free(cdbqr);
 322
 323                 room_sanity_check(qrbuf);
 324
 325                 return (0);
 326         } else {
 327                 return (1);
 328         }
 329 }
 330
 331 /*
 332  * CtdlGetRoomLock()  -  same as getroom() but locks the record (if supported)
 333  */
 334 int CtdlGetRoomLock(struct ctdlroom *qrbuf, char *room_name)
 335 {
 336         register int retval;
 337         retval = CtdlGetRoom(qrbuf, room_name);
 338         if (retval == 0) begin_critical_section(S_ROOMS);
 339         return(retval);
 340 }
 341
 342
 343 /*
 344  * b_putroom()  -  back end to putroom() and b_deleteroom()
 345  *              (if the supplied buffer is NULL, delete the room record)
 346  */
 347 void b_putroom(struct ctdlroom *qrbuf, char *room_name)
 348 {
 349         char lowercase_name[ROOMNAMELEN];
 350         char *aptr, *bptr;
 351         long len;
 352
 353         aptr = room_name;
 354         bptr = lowercase_name;
 355         while (!IsEmptyStr(aptr))
 356         {
 357                 *bptr = tolower(*aptr);
 358                 aptr++;
 359                 bptr++;
 360         }
 361         *bptr='\0';
 362
 363         len = bptr - lowercase_name;
 364         if (qrbuf == NULL) {
 365                 cdb_delete(CDB_ROOMS,
 366                            lowercase_name, len);
 367         } else {
 368                 time(&qrbuf->QRmtime);
 369                 cdb_store(CDB_ROOMS,
 370                           lowercase_name, len,
 371                           qrbuf, sizeof(struct ctdlroom));
 372         }
 373 }
 374
 375
 376 /*
 377  * CtdlPutRoom()  -  store room data to disk
 378  */
 379 void CtdlPutRoom(struct ctdlroom *qrbuf) {
 380         b_putroom(qrbuf, qrbuf->QRname);
 381 }
 382
 383
 384 /*
 385  * b_deleteroom()  -  delete a room record from disk
 386  */
 387 void b_deleteroom(char *room_name) {
 388         b_putroom(NULL, room_name);
 389 }
 390
 391
 392
 393 /*
 394  * CtdlPutRoomLock()  -  same as CtdlPutRoom() but unlocks the record (if supported)
 395  */
 396 void CtdlPutRoomLock(struct ctdlroom *qrbuf)
 397 {
 398
 399         CtdlPutRoom(qrbuf);
 400         end_critical_section(S_ROOMS);
 401
 402 }
 403
 404 /****************************************************************************/
 405
 406
 407 /*
 408  * CtdlGetFloorByName()  -  retrieve the number of the named floor
 409  * return < 0 if not found else return floor number
 410  */
 411 int CtdlGetFloorByName(const char *floor_name)
 412 {
 413         int a;
 414         struct floor *flbuf = NULL;
 415
 416         for (a = 0; a < MAXFLOORS; ++a) {
 417                 flbuf = CtdlGetCachedFloor(a);
 418
 419                 /* check to see if it already exists */
 420                 if ((!strcasecmp(flbuf->f_name, floor_name))
 421                     && (flbuf->f_flags & F_INUSE)) {
 422                         return a;
 423                 }
 424         }
 425         return -1;
 426 }
 427
 428
 429
 430 /*
 431  * CtdlGetFloorByNameLock()  -  retrieve floor number for given floor and lock the floor list.
 432  */
 433 int CtdlGetFloorByNameLock(const char *floor_name)
 434 {
 435         begin_critical_section(S_FLOORTAB);
 436         return CtdlGetFloorByName(floor_name);
 437 }
 438
 439
 440
 441 /*
 442  * CtdlGetAvailableFloor()  -  Return number of first unused floor
 443  * return < 0 if none available
 444  */
 445 int CtdlGetAvailableFloor(void)
 446 {
 447         int a;
 448         struct floor *flbuf = NULL;
 449
 450         for (a = 0; a < MAXFLOORS; a++) {
 451                 flbuf = CtdlGetCachedFloor(a);
 452
 453                 /* check to see if it already exists */
 454                 if ((flbuf->f_flags & F_INUSE) == 0) {
 455                         return a;
 456                 }
 457         }
 458         return -1;
 459 }
 460
 461
 462 /*
 463  * CtdlGetFloor()  -  retrieve floor data from disk
 464  */
 465 void CtdlGetFloor(struct floor *flbuf, int floor_num)
 466 {
 467         struct cdbdata *cdbfl;
 468
 469         memset(flbuf, 0, sizeof(struct floor));
 470         cdbfl = cdb_fetch(CDB_FLOORTAB, &floor_num, sizeof(int));
 471         if (cdbfl != NULL) {
 472                 memcpy(flbuf, cdbfl->ptr,
 473                        ((cdbfl->len > sizeof(struct floor)) ?
 474                         sizeof(struct floor) : cdbfl->len));
 475                 cdb_free(cdbfl);
 476         } else {
 477                 if (floor_num == 0) {
 478                         safestrncpy(flbuf->f_name, "Main Floor",
 479                                 sizeof flbuf->f_name);
 480                         flbuf->f_flags = F_INUSE;
 481                         flbuf->f_ref_count = 3;
 482                 }
 483         }
 484
 485 }
 486
 487 /*
 488  * lgetfloor()  -  same as CtdlGetFloor() but locks the record (if supported)
 489  */
 490 void lgetfloor(struct floor *flbuf, int floor_num)
 491 {
 492
 493         begin_critical_section(S_FLOORTAB);
 494         CtdlGetFloor(flbuf, floor_num);
 495 }
 496
 497
 498 /*
 499  * CtdlGetCachedFloor()  -  Get floor record from *cache* (loads from disk if needed)
 500  *
 501  * This is strictly a performance hack.
 502  */
 503 struct floor *CtdlGetCachedFloor(int floor_num) {
 504         static int initialized = 0;
 505         int i;
 506         int fetch_new = 0;
 507         struct floor *fl = NULL;
 508
 509         begin_critical_section(S_FLOORCACHE);
 510         if (initialized == 0) {
 511                 for (i=0; i<MAXFLOORS; ++i) {
 512                         floorcache[floor_num] = NULL;
 513                 }
 514         initialized = 1;
 515         }
 516         if (floorcache[floor_num] == NULL) {
 517                 fetch_new = 1;
 518         }
 519         end_critical_section(S_FLOORCACHE);
 520
 521         if (fetch_new) {
 522                 fl = malloc(sizeof(struct floor));
 523                 CtdlGetFloor(fl, floor_num);
 524                 begin_critical_section(S_FLOORCACHE);
 525                 if (floorcache[floor_num] != NULL) {
 526                         free(floorcache[floor_num]);
 527                 }
 528                 floorcache[floor_num] = fl;
 529                 end_critical_section(S_FLOORCACHE);
 530         }
 531
 532         return(floorcache[floor_num]);
 533 }
 534
 535
 536
 537 /*
 538  * CtdlPutFloor()  -  store floor data on disk
 539  */
 540 void CtdlPutFloor(struct floor *flbuf, int floor_num)
 541 {
 542         /* If we've cached this, clear it out, 'cuz it's WRONG now! */
 543         begin_critical_section(S_FLOORCACHE);
 544         if (floorcache[floor_num] != NULL) {
 545                 free(floorcache[floor_num]);
 546                 floorcache[floor_num] = malloc(sizeof(struct floor));
 547                 memcpy(floorcache[floor_num], flbuf, sizeof(struct floor));
 548         }
 549         end_critical_section(S_FLOORCACHE);
 550
 551         cdb_store(CDB_FLOORTAB, &floor_num, sizeof(int),
 552                   flbuf, sizeof(struct floor));
 553 }
 554
 555
 556
 557 /*
 558  * CtdlPutFloorLock()  -  same as CtdlPutFloor() but unlocks the record (if supported)
 559  */
 560 void CtdlPutFloorLock(struct floor *flbuf, int floor_num)
 561 {
 562
 563         CtdlPutFloor(flbuf, floor_num);
 564         end_critical_section(S_FLOORTAB);
 565
 566 }
 567
 568
 569
 570 /*
 571  * lputfloor()  -  same as CtdlPutFloor() but unlocks the record (if supported)
 572  */
 573 void lputfloor(struct floor *flbuf, int floor_num)
 574 {
 575         CtdlPutFloorLock(flbuf, floor_num);
 576 }
 577
 578
 579 /*
 580  *  Traverse the room file...
 581  */
 582 void CtdlForEachRoom(void (*CallBack) (struct ctdlroom *EachRoom, void *out_data),
 583                 void *in_data)
 584 {
 585         struct ctdlroom qrbuf;
 586         struct cdbdata *cdbqr;
 587
 588         cdb_rewind(CDB_ROOMS);
 589
 590         while (cdbqr = cdb_next_item(CDB_ROOMS), cdbqr != NULL) {
 591                 memset(&qrbuf, 0, sizeof(struct ctdlroom));
 592                 memcpy(&qrbuf, cdbqr->ptr,
 593                        ((cdbqr->len > sizeof(struct ctdlroom)) ?
 594                         sizeof(struct ctdlroom) : cdbqr->len));
 595                 cdb_free(cdbqr);
 596                 room_sanity_check(&qrbuf);
 597                 if (qrbuf.QRflags & QR_INUSE)
 598                         (*CallBack)(&qrbuf, in_data);
 599         }
 600 }
 601
 602
 603 /*
 604  * delete_msglist()  -  delete room message pointers
 605  */
 606 void delete_msglist(struct ctdlroom *whichroom)
 607 {
 608         struct cdbdata *cdbml;
 609
 610         /* Make sure the msglist we're deleting actually exists, otherwise
 611          * gdbm will complain when we try to delete an invalid record
 612          */
 613         cdbml = cdb_fetch(CDB_MSGLISTS, &whichroom->QRnumber, sizeof(long));
 614         if (cdbml != NULL) {
 615                 cdb_free(cdbml);
 616
 617                 /* Go ahead and delete it */
 618                 cdb_delete(CDB_MSGLISTS, &whichroom->QRnumber, sizeof(long));
 619         }
 620 }
 621
 622
 623
 624 /*
 625  * Message pointer compare function for sort_msglist()
 626  */
 627 int sort_msglist_cmp(const void *m1, const void *m2) {
 628         if ((*(const long *)m1) > (*(const long *)m2)) return(1);
 629         if ((*(const long *)m1) < (*(const long *)m2)) return(-1);
 630         return(0);
 631 }
 632
 633
 634 /*
 635  * sort message pointers
 636  * (returns new msg count)
 637  */
 638 int sort_msglist(long listptrs[], int oldcount)
 639 {
 640         int numitems;
 641
 642         numitems = oldcount;
 643         if (numitems < 2) {
 644                 return (oldcount);
 645         }
 646
 647         /* do the sort */
 648         qsort(listptrs, numitems, sizeof(long), sort_msglist_cmp);
 649
 650         /* and yank any nulls */
 651         while ((numitems > 0) && (listptrs[0] == 0L)) {
 652                 memmove(&listptrs[0], &listptrs[1],
 653                        (sizeof(long) * (numitems - 1)));
 654                 --numitems;
 655         }
 656
 657         return (numitems);
 658 }
 659
 660
 661 /*
 662  * Determine whether a given room is non-editable.
 663  */
 664 int CtdlIsNonEditable(struct ctdlroom *qrbuf)
 665 {
 666
 667         /* Mail> rooms are non-editable */
 668         if ( (qrbuf->QRflags & QR_MAILBOX)
 669              && (!strcasecmp(&qrbuf->QRname[11], MAILROOM)) )
 670                 return (1);
 671
 672         /* Everything else is editable */
 673         return (0);
 674 }
 675
 676
 677
 678 /*
 679  * Back-back-end for all room listing commands
 680  */
 681 void list_roomname(struct ctdlroom *qrbuf, int ra, int current_view, int default_view)
 682 {
 683         char truncated_roomname[ROOMNAMELEN];
 684
 685         /* For my own mailbox rooms, chop off the owner prefix */
 686         if ( (qrbuf->QRflags & QR_MAILBOX)
 687              && (atol(qrbuf->QRname) == CC->user.usernum) ) {
 688                 safestrncpy(truncated_roomname, qrbuf->QRname, sizeof truncated_roomname);
 689                 safestrncpy(truncated_roomname, &truncated_roomname[11], sizeof truncated_roomname);
 690                 cprintf("%s", truncated_roomname);
 691         }
 692         /* For all other rooms, just display the name in its entirety */
 693         else {
 694                 cprintf("%s", qrbuf->QRname);
 695         }
 696
 697         /* ...and now the other parameters */
 698         cprintf("|%u|%d|%d|%d|%d|%d|%d|%ld|\n",
 699                 qrbuf->QRflags,
 700                 (int) qrbuf->QRfloor,
 701                 (int) qrbuf->QRorder,
 702                 (int) qrbuf->QRflags2,
 703                 ra,
 704                 current_view,
 705                 default_view,
 706                 qrbuf->QRmtime
 707         );
 708 }
 709
 710
 711 /*
 712  * cmd_lrms()   -  List all accessible rooms, known or forgotten
 713  */
 714 void cmd_lrms_backend(struct ctdlroom *qrbuf, void *data)
 715 {
 716         int FloorBeingSearched = (-1);
 717         int ra;
 718         int view;
 719
 720         FloorBeingSearched = *(int *)data;
 721         CtdlRoomAccess(qrbuf, &CC->user, &ra, &view);
 722
 723         if ((( ra & (UA_KNOWN | UA_ZAPPED)))
 724             && ((qrbuf->QRfloor == (FloorBeingSearched))
 725                 || ((FloorBeingSearched) < 0)))
 726                 list_roomname(qrbuf, ra, view, qrbuf->QRdefaultview);
 727 }
 728
 729 void cmd_lrms(char *argbuf)
 730 {
 731         int FloorBeingSearched = (-1);
 732         if (!IsEmptyStr(argbuf))
 733                 FloorBeingSearched = extract_int(argbuf, 0);
 734
 735         if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
 736
 737         CtdlGetUser(&CC->user, CC->curr_user);
 738         cprintf("%d Accessible rooms:\n", LISTING_FOLLOWS);
 739
 740         CtdlForEachRoom(cmd_lrms_backend, &FloorBeingSearched);
 741         cprintf("000\n");
 742 }
 743
 744
 745
 746 /*
 747  * cmd_lkra()   -  List all known rooms
 748  */
 749 void cmd_lkra_backend(struct ctdlroom *qrbuf, void *data)
 750 {
 751         int FloorBeingSearched = (-1);
 752         int ra;
 753         int view;
 754
 755         FloorBeingSearched = *(int *)data;
 756         CtdlRoomAccess(qrbuf, &CC->user, &ra, &view);
 757
 758         if ((( ra & (UA_KNOWN)))
 759             && ((qrbuf->QRfloor == (FloorBeingSearched))
 760                 || ((FloorBeingSearched) < 0)))
 761                 list_roomname(qrbuf, ra, view, qrbuf->QRdefaultview);
 762 }
 763
 764 void cmd_lkra(char *argbuf)
 765 {
 766         int FloorBeingSearched = (-1);
 767         if (!IsEmptyStr(argbuf))
 768                 FloorBeingSearched = extract_int(argbuf, 0);
 769
 770         if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
 771
 772         CtdlGetUser(&CC->user, CC->curr_user);
 773         cprintf("%d Known rooms:\n", LISTING_FOLLOWS);
 774
 775         CtdlForEachRoom(cmd_lkra_backend, &FloorBeingSearched);
 776         cprintf("000\n");
 777 }
 778
 779
 780
 781 void cmd_lprm_backend(struct ctdlroom *qrbuf, void *data)
 782 {
 783         int FloorBeingSearched = (-1);
 784         int ra;
 785         int view;
 786
 787         FloorBeingSearched = *(int *)data;
 788         CtdlRoomAccess(qrbuf, &CC->user, &ra, &view);
 789
 790         if (   ((qrbuf->QRflags & QR_PRIVATE) == 0)
 791                 && ((qrbuf->QRflags & QR_MAILBOX) == 0)
 792             && ((qrbuf->QRfloor == (FloorBeingSearched))
 793                 || ((FloorBeingSearched) < 0)))
 794                 list_roomname(qrbuf, ra, view, qrbuf->QRdefaultview);
 795 }
 796
 797 void cmd_lprm(char *argbuf)
 798 {
 799         int FloorBeingSearched = (-1);
 800         if (!IsEmptyStr(argbuf))
 801                 FloorBeingSearched = extract_int(argbuf, 0);
 802
 803         cprintf("%d Public rooms:\n", LISTING_FOLLOWS);
 804
 805         CtdlForEachRoom(cmd_lprm_backend, &FloorBeingSearched);
 806         cprintf("000\n");
 807 }
 808
 809
 810
 811 /*
 812  * cmd_lkrn()   -  List all known rooms with new messages
 813  */
 814 void cmd_lkrn_backend(struct ctdlroom *qrbuf, void *data)
 815 {
 816         int FloorBeingSearched = (-1);
 817         int ra;
 818         int view;
 819
 820         FloorBeingSearched = *(int *)data;
 821         CtdlRoomAccess(qrbuf, &CC->user, &ra, &view);
 822
 823         if ((ra & UA_KNOWN)
 824             && (ra & UA_HASNEWMSGS)
 825             && ((qrbuf->QRfloor == (FloorBeingSearched))
 826                 || ((FloorBeingSearched) < 0)))
 827                 list_roomname(qrbuf, ra, view, qrbuf->QRdefaultview);
 828 }
 829
 830 void cmd_lkrn(char *argbuf)
 831 {
 832         int FloorBeingSearched = (-1);
 833         if (!IsEmptyStr(argbuf))
 834                 FloorBeingSearched = extract_int(argbuf, 0);
 835
 836         if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
 837
 838         CtdlGetUser(&CC->user, CC->curr_user);
 839         cprintf("%d Rooms w/ new msgs:\n", LISTING_FOLLOWS);
 840
 841         CtdlForEachRoom(cmd_lkrn_backend, &FloorBeingSearched);
 842         cprintf("000\n");
 843 }
 844
 845
 846
 847 /*
 848  * cmd_lkro()   -  List all known rooms
 849  */
 850 void cmd_lkro_backend(struct ctdlroom *qrbuf, void *data)
 851 {
 852         int FloorBeingSearched = (-1);
 853         int ra;
 854         int view;
 855
 856         FloorBeingSearched = *(int *)data;
 857         CtdlRoomAccess(qrbuf, &CC->user, &ra, &view);
 858
 859         if ((ra & UA_KNOWN)
 860             && ((ra & UA_HASNEWMSGS) == 0)
 861             && ((qrbuf->QRfloor == (FloorBeingSearched))
 862                 || ((FloorBeingSearched) < 0)))
 863                 list_roomname(qrbuf, ra, view, qrbuf->QRdefaultview);
 864 }
 865
 866 void cmd_lkro(char *argbuf)
 867 {
 868         int FloorBeingSearched = (-1);
 869         if (!IsEmptyStr(argbuf))
 870                 FloorBeingSearched = extract_int(argbuf, 0);
 871
 872         if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
 873
 874         CtdlGetUser(&CC->user, CC->curr_user);
 875         cprintf("%d Rooms w/o new msgs:\n", LISTING_FOLLOWS);
 876
 877         CtdlForEachRoom(cmd_lkro_backend, &FloorBeingSearched);
 878         cprintf("000\n");
 879 }
 880
 881
 882
 883 /*
 884  * cmd_lzrm()   -  List all forgotten rooms
 885  */
 886 void cmd_lzrm_backend(struct ctdlroom *qrbuf, void *data)
 887 {
 888         int FloorBeingSearched = (-1);
 889         int ra;
 890         int view;
 891
 892         FloorBeingSearched = *(int *)data;
 893         CtdlRoomAccess(qrbuf, &CC->user, &ra, &view);
 894
 895         if ((ra & UA_GOTOALLOWED)
 896             && (ra & UA_ZAPPED)
 897             && ((qrbuf->QRfloor == (FloorBeingSearched))
 898                 || ((FloorBeingSearched) < 0)))
 899                 list_roomname(qrbuf, ra, view, qrbuf->QRdefaultview);
 900 }
 901
 902 void cmd_lzrm(char *argbuf)
 903 {
 904         int FloorBeingSearched = (-1);
 905         if (!IsEmptyStr(argbuf))
 906                 FloorBeingSearched = extract_int(argbuf, 0);
 907
 908         if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
 909
 910         CtdlGetUser(&CC->user, CC->curr_user);
 911         cprintf("%d Zapped rooms:\n", LISTING_FOLLOWS);
 912
 913         CtdlForEachRoom(cmd_lzrm_backend, &FloorBeingSearched);
 914         cprintf("000\n");
 915 }
 916
 917
 918 /*
 919  * Make the specified room the current room for this session.  No validation
 920  * or access control is done here -- the caller should make sure that the
 921  * specified room exists and is ok to access.
 922  */
 923 void CtdlUserGoto(char *where, int display_result, int transiently,
 924                 int *retmsgs, int *retnew)
 925 {
 926         struct CitContext *CCC = CC;
 927         int a;
 928         int new_messages = 0;
 929         int old_messages = 0;
 930         int total_messages = 0;
 931         int info = 0;
 932         int rmailflag;
 933         int raideflag;
 934         int newmailcount = 0;
 935         visit vbuf;
 936         char truncated_roomname[ROOMNAMELEN];
 937         struct cdbdata *cdbfr;
 938         long *msglist = NULL;
 939         int num_msgs = 0;
 940         unsigned int original_v_flags;
 941         int num_sets;
 942         int s;
 943         char setstr[128], lostr[64], histr[64];
 944         long lo, hi;
 945         int is_trash = 0;
 946
 947         /* If the supplied room name is NULL, the caller wants us to know that
 948          * it has already copied the room record into CC->room, so
 949          * we can skip the extra database fetch.
 950          */
 951         if (where != NULL) {
 952                 safestrncpy(CCC->room.QRname, where, sizeof CCC->room.QRname);
 953                 CtdlGetRoom(&CCC->room, where);
 954         }
 955
 956         /* Take care of all the formalities. */
 957
 958         begin_critical_section(S_USERS);
 959         CtdlGetRelationship(&vbuf, &CCC->user, &CCC->room);
 960         original_v_flags = vbuf.v_flags;
 961
 962         /* Know the room ... but not if it's the page log room, or if the
 963          * caller specified that we're only entering this room transiently.
 964          */
 965         if ((strcasecmp(CCC->room.QRname, config.c_logpages))
 966            && (transiently == 0) ) {
 967                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
 968                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
 969         }
 970
 971         /* Only rewrite the database record if we changed something */
 972         if (vbuf.v_flags != original_v_flags) {
 973                 CtdlSetRelationship(&vbuf, &CCC->user, &CCC->room);
 974         }
 975         end_critical_section(S_USERS);
 976
 977         /* Check for new mail */
 978         newmailcount = NewMailCount();
 979
 980         /* set info to 1 if the user needs to read the room's info file */
 981         if (CCC->room.QRinfo > vbuf.v_lastseen) {
 982                 info = 1;
 983         }
 984
 985         cdbfr = cdb_fetch(CDB_MSGLISTS, &CCC->room.QRnumber, sizeof(long));
 986         if (cdbfr != NULL) {
 987                 msglist = (long *) cdbfr->ptr;
 988                 cdbfr->ptr = NULL;      /* CtdlUserGoto() now owns this memory */
 989                 num_msgs = cdbfr->len / sizeof(long);
 990                 cdb_free(cdbfr);
 991         }
 992
 993         total_messages = 0;
 994         for (a=0; a<num_msgs; ++a) {
 995                 if (msglist[a] > 0L) ++total_messages;
 996         }
 997         new_messages = num_msgs;
 998         num_sets = num_tokens(vbuf.v_seen, ',');
 999         for (s=0; s<num_sets; ++s) {
1000                 extract_token(setstr, vbuf.v_seen, s, ',', sizeof setstr);
1001
1002                 extract_token(lostr, setstr, 0, ':', sizeof lostr);
1003                 if (num_tokens(setstr, ':') >= 2) {
1004                         extract_token(histr, setstr, 1, ':', sizeof histr);
1005                         if (!strcmp(histr, "*")) {
1006                                 snprintf(histr, sizeof histr, "%ld", LONG_MAX);
1007                         }
1008                 }
1009                 else {
1010                         strcpy(histr, lostr);
1011                 }
1012                 lo = atol(lostr);
1013                 hi = atol(histr);
1014
1015                 for (a=0; a<num_msgs; ++a) if (msglist[a] > 0L) {
1016                         if ((msglist[a] >= lo) && (msglist[a] <= hi)) {
1017                                 ++old_messages;
1018                                 msglist[a] = 0L;
1019                         }
1020                 }
1021         }
1022         new_messages = total_messages - old_messages;
1023
1024         if (msglist != NULL) free(msglist);
1025
1026         if (CCC->room.QRflags & QR_MAILBOX)
1027                 rmailflag = 1;
1028         else
1029                 rmailflag = 0;
1030
1031         if ((CCC->room.QRroomaide == CCC->user.usernum)
1032             || (CCC->user.axlevel >= AxAideU))
1033                 raideflag = 1;
1034         else
1035                 raideflag = 0;
1036
1037         safestrncpy(truncated_roomname, CCC->room.QRname, sizeof truncated_roomname);
1038         if ( (CCC->room.QRflags & QR_MAILBOX)
1039            && (atol(CCC->room.QRname) == CCC->user.usernum) ) {
1040                 safestrncpy(truncated_roomname, &truncated_roomname[11], sizeof truncated_roomname);
1041         }
1042
1043         if (!strcasecmp(truncated_roomname, USERTRASHROOM)) {
1044                 is_trash = 1;
1045         }
1046
1047         if (retmsgs != NULL) *retmsgs = total_messages;
1048         if (retnew != NULL) *retnew = new_messages;
1049         MSG_syslog(LOG_INFO, "<%s> %d new of %d total messages\n",
1050                    CCC->room.QRname,
1051                    new_messages, total_messages
1052                 );
1053
1054         CCC->curr_view = (int)vbuf.v_view;
1055
1056         if (display_result) {
1057                 cprintf("%d%c%s|%d|%d|%d|%d|%ld|%ld|%d|%d|%d|%d|%d|%d|%d|%d|\n",
1058                         CIT_OK, CtdlCheckExpress(),
1059                         truncated_roomname,
1060                         (int)new_messages,
1061                         (int)total_messages,
1062                         (int)info,
1063                         (int)CCC->room.QRflags,
1064                         (long)CCC->room.QRhighest,
1065                         (long)vbuf.v_lastseen,
1066                         (int)rmailflag,
1067                         (int)raideflag,
1068                         (int)newmailcount,
1069                         (int)CCC->room.QRfloor,
1070                         (int)vbuf.v_view,
1071                         (int)CCC->room.QRdefaultview,
1072                         (int)is_trash,
1073                         (int)CCC->room.QRflags2
1074                 );
1075         }
1076 }
1077
1078
1079 /*
1080  * Handle some of the macro named rooms
1081  */
1082 void convert_room_name_macros(char *towhere, size_t maxlen) {
1083         if (!strcasecmp(towhere, "_BASEROOM_")) {
1084                 safestrncpy(towhere, config.c_baseroom, maxlen);
1085         }
1086         else if (!strcasecmp(towhere, "_MAIL_")) {
1087                 safestrncpy(towhere, MAILROOM, maxlen);
1088         }
1089         else if (!strcasecmp(towhere, "_TRASH_")) {
1090                 safestrncpy(towhere, USERTRASHROOM, maxlen);
1091         }
1092         else if (!strcasecmp(towhere, "_DRAFTS_")) {
1093                 safestrncpy(towhere, USERDRAFTROOM, maxlen);
1094         }
1095         else if (!strcasecmp(towhere, "_BITBUCKET_")) {
1096                 safestrncpy(towhere, config.c_twitroom, maxlen);
1097         }
1098         else if (!strcasecmp(towhere, "_CALENDAR_")) {
1099                 safestrncpy(towhere, USERCALENDARROOM, maxlen);
1100         }
1101         else if (!strcasecmp(towhere, "_TASKS_")) {
1102                 safestrncpy(towhere, USERTASKSROOM, maxlen);
1103         }
1104         else if (!strcasecmp(towhere, "_CONTACTS_")) {
1105                 safestrncpy(towhere, USERCONTACTSROOM, maxlen);
1106         }
1107         else if (!strcasecmp(towhere, "_NOTES_")) {
1108                 safestrncpy(towhere, USERNOTESROOM, maxlen);
1109         }
1110 }
1111
1112
1113 /*
1114  * cmd_goto()  -  goto a new room
1115  */
1116 void cmd_goto(char *gargs)
1117 {
1118         struct ctdlroom QRscratch;
1119         int c;
1120         int ok = 0;
1121         int ra;
1122         char augmented_roomname[ROOMNAMELEN];
1123         char towhere[ROOMNAMELEN];
1124         char password[32];
1125         int transiently = 0;
1126
1127         if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
1128
1129         extract_token(towhere, gargs, 0, '|', sizeof towhere);
1130         extract_token(password, gargs, 1, '|', sizeof password);
1131         transiently = extract_int(gargs, 2);
1132
1133         CtdlGetUser(&CC->user, CC->curr_user);
1134
1135         /*
1136          * Handle some of the macro named rooms
1137          */
1138         convert_room_name_macros(towhere, sizeof towhere);
1139
1140         /* First try a regular match */
1141         c = CtdlGetRoom(&QRscratch, towhere);
1142
1143         /* Then try a mailbox name match */
1144         if (c != 0) {
1145                 CtdlMailboxName(augmented_roomname, sizeof augmented_roomname,
1146                             &CC->user, towhere);
1147                 c = CtdlGetRoom(&QRscratch, augmented_roomname);
1148                 if (c == 0)
1149                         safestrncpy(towhere, augmented_roomname, sizeof towhere);
1150         }
1151
1152         /* And if the room was found... */
1153         if (c == 0) {
1154
1155                 /* Let internal programs go directly to any room. */
1156                 if (CC->internal_pgm) {
1157                         memcpy(&CC->room, &QRscratch,
1158                                 sizeof(struct ctdlroom));
1159                         CtdlUserGoto(NULL, 1, transiently, NULL, NULL);
1160                         return;
1161                 }
1162
1163                 /* See if there is an existing user/room relationship */
1164                 CtdlRoomAccess(&QRscratch, &CC->user, &ra, NULL);
1165
1166                 /* normal clients have to pass through security */
1167                 if (ra & UA_GOTOALLOWED) {
1168                         ok = 1;
1169                 }
1170
1171                 if (ok == 1) {
1172                         if ((QRscratch.QRflags & QR_MAILBOX) &&
1173                             ((ra & UA_GOTOALLOWED))) {
1174                                 memcpy(&CC->room, &QRscratch,
1175                                         sizeof(struct ctdlroom));
1176                                 CtdlUserGoto(NULL, 1, transiently, NULL, NULL);
1177                                 return;
1178                         } else if ((QRscratch.QRflags & QR_PASSWORDED) &&
1179                             ((ra & UA_KNOWN) == 0) &&
1180                             (strcasecmp(QRscratch.QRpasswd, password)) &&
1181                             (CC->user.axlevel < AxAideU)
1182                             ) {
1183                                 cprintf("%d wrong or missing passwd\n",
1184                                         ERROR + PASSWORD_REQUIRED);
1185                                 return;
1186                         } else if ((QRscratch.QRflags & QR_PRIVATE) &&
1187                                    ((QRscratch.QRflags & QR_PASSWORDED) == 0) &&
1188                                    ((QRscratch.QRflags & QR_GUESSNAME) == 0) &&
1189                                    ((ra & UA_KNOWN) == 0) &&
1190                                    (CC->user.axlevel < AxAideU)
1191                                   ) {
1192                                 syslog(LOG_DEBUG, "Failed to acquire private room\n");
1193                         } else {
1194                                 memcpy(&CC->room, &QRscratch,
1195                                         sizeof(struct ctdlroom));
1196                                 CtdlUserGoto(NULL, 1, transiently, NULL, NULL);
1197                                 return;
1198                         }
1199                 }
1200         }
1201
1202         cprintf("%d room '%s' not found\n", ERROR + ROOM_NOT_FOUND, towhere);
1203 }
1204
1205
1206 void cmd_whok(char *cmdbuf)
1207 {
1208         struct ctdluser temp;
1209         struct cdbdata *cdbus;
1210         int ra;
1211
1212         cprintf("%d Who knows room:\n", LISTING_FOLLOWS);
1213         cdb_rewind(CDB_USERS);
1214         while (cdbus = cdb_next_item(CDB_USERS), cdbus != NULL) {
1215                 memset(&temp, 0, sizeof temp);
1216                 memcpy(&temp, cdbus->ptr, sizeof temp);
1217                 cdb_free(cdbus);
1218
1219                 CtdlRoomAccess(&CC->room, &temp, &ra, NULL);
1220                 if ((!IsEmptyStr(temp.fullname)) &&
1221                     (CC->room.QRflags & QR_INUSE) &&
1222                     (ra & UA_KNOWN)
1223                         )
1224                         cprintf("%s\n", temp.fullname);
1225         }
1226         cprintf("000\n");
1227 }
1228
1229
1230 /*
1231  * RDIR command for room directory
1232  */
1233 void cmd_rdir(char *cmdbuf)
1234 {
1235         char buf[256];
1236         char comment[256];
1237         FILE *fd;
1238         struct stat statbuf;
1239         DIR *filedir = NULL;
1240         struct dirent *filedir_entry;
1241         int d_namelen;
1242         char buf2[SIZ];
1243         char mimebuf[64];
1244         long len;
1245
1246         if (CtdlAccessCheck(ac_logged_in)) return;
1247
1248         CtdlGetRoom(&CC->room, CC->room.QRname);
1249         CtdlGetUser(&CC->user, CC->curr_user);
1250
1251         if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
1252                 cprintf("%d not here.\n", ERROR + NOT_HERE);
1253                 return;
1254         }
1255         if (((CC->room.QRflags & QR_VISDIR) == 0)
1256             && (CC->user.axlevel < AxAideU)
1257             && (CC->user.usernum != CC->room.QRroomaide)) {
1258                 cprintf("%d not here.\n", ERROR + HIGHER_ACCESS_REQUIRED);
1259                 return;
1260         }
1261
1262         snprintf(buf, sizeof buf, "%s/%s", ctdl_file_dir, CC->room.QRdirname);
1263         filedir = opendir (buf);
1264
1265         if (filedir == NULL) {
1266                 cprintf("%d not here.\n", ERROR + HIGHER_ACCESS_REQUIRED);
1267                 return;
1268         }
1269         cprintf("%d %s|%s/%s\n", LISTING_FOLLOWS, config.c_fqdn, ctdl_file_dir, CC->room.QRdirname);
1270
1271         snprintf(buf, sizeof buf, "%s/%s/filedir", ctdl_file_dir, CC->room.QRdirname);
1272         fd = fopen(buf, "r");
1273         if (fd == NULL)
1274                 fd = fopen("/dev/null", "r");
1275         while ((filedir_entry = readdir(filedir)))
1276         {
1277                 if (strcasecmp(filedir_entry->d_name, "filedir") && filedir_entry->d_name[0] != '.')
1278                 {
1279 #ifdef _DIRENT_HAVE_D_NAMELEN
1280                         d_namelen = filedir_entry->d_namelen;
1281 #else
1282                         d_namelen = strlen(filedir_entry->d_name);
1283 #endif
1284                         snprintf(buf, sizeof buf, "%s/%s/%s", ctdl_file_dir, CC->room.QRdirname, filedir_entry->d_name);
1285                         stat(buf, &statbuf);    /* stat the file */
1286                         if (!(statbuf.st_mode & S_IFREG))
1287                         {
1288                                 snprintf(buf2, sizeof buf2,
1289                                         "\"%s\" appears in the file directory for room \"%s\" but is not a regular file.  Directories, named pipes, sockets, etc. are not usable in Citadel room directories.\n",
1290                                         buf, CC->room.QRname
1291                                 );
1292                                 CtdlAideMessage(buf2, "Unusable data found in room directory");
1293                                 continue;       /* not a useable file type so don't show it */
1294                         }
1295                         safestrncpy(comment, "", sizeof comment);
1296                         fseek(fd, 0L, 0);       /* rewind descriptions file */
1297                         /* Get the description from the descriptions file */
1298                         while ((fgets(buf, sizeof buf, fd) != NULL) && (IsEmptyStr(comment)))
1299                         {
1300                                 buf[strlen(buf) - 1] = 0;
1301                                 if ((!strncasecmp(buf, filedir_entry->d_name, d_namelen)) && (buf[d_namelen] == ' '))
1302                                         safestrncpy(comment, &buf[d_namelen + 1], sizeof comment);
1303                         }
1304                         len = extract_token (mimebuf, comment, 0,' ', 64);
1305                         if ((len <0) || strchr(mimebuf, '/') == NULL)
1306                         {
1307                                 snprintf (mimebuf, 64, "application/octetstream");
1308                                 len = 0;
1309                         }
1310                         cprintf("%s|%ld|%s|%s\n",
1311                                 filedir_entry->d_name,
1312                                 (long)statbuf.st_size,
1313                                 mimebuf,
1314                                 &comment[len]);
1315                 }
1316         }
1317         fclose(fd);
1318         closedir(filedir);
1319
1320         cprintf("000\n");
1321 }
1322
1323 /*
1324  * get room parameters (aide or room aide command)
1325  */
1326 void cmd_getr(char *cmdbuf)
1327 {
1328         if (CtdlAccessCheck(ac_room_aide)) return;
1329
1330         CtdlGetRoom(&CC->room, CC->room.QRname);
1331         cprintf("%d%c%s|%s|%s|%d|%d|%d|%d|%d|\n",
1332                 CIT_OK,
1333                 CtdlCheckExpress(),
1334
1335                 ((CC->room.QRflags & QR_MAILBOX) ?
1336                         &CC->room.QRname[11] : CC->room.QRname),
1337
1338                 ((CC->room.QRflags & QR_PASSWORDED) ?
1339                         CC->room.QRpasswd : ""),
1340
1341                 ((CC->room.QRflags & QR_DIRECTORY) ?
1342                         CC->room.QRdirname : ""),
1343
1344                 CC->room.QRflags,
1345                 (int) CC->room.QRfloor,
1346                 (int) CC->room.QRorder,
1347
1348                 CC->room.QRdefaultview,
1349                 CC->room.QRflags2
1350                 );
1351 }
1352
1353
1354 /*
1355  * Back end function to rename a room.
1356  * You can also specify which floor to move the room to, or specify -1 to
1357  * keep the room on the same floor it was on.
1358  *
1359  * If you are renaming a mailbox room, you must supply the namespace prefix
1360  * in *at least* the old name!
1361  */
1362 int CtdlRenameRoom(char *old_name, char *new_name, int new_floor) {
1363         int old_floor = 0;
1364         struct ctdlroom qrbuf;
1365         struct ctdlroom qrtmp;
1366         int ret = 0;
1367         struct floor *fl;
1368         struct floor flbuf;
1369         long owner = 0L;
1370         char actual_old_name[ROOMNAMELEN];
1371
1372         syslog(LOG_DEBUG, "CtdlRenameRoom(%s, %s, %d)\n",
1373                 old_name, new_name, new_floor);
1374
1375         if (new_floor >= 0) {
1376                 fl = CtdlGetCachedFloor(new_floor);
1377                 if ((fl->f_flags & F_INUSE) == 0) {
1378                         return(crr_invalid_floor);
1379                 }
1380         }
1381
1382         begin_critical_section(S_ROOMS);
1383
1384         if ( (CtdlGetRoom(&qrtmp, new_name) == 0)
1385            && (strcasecmp(new_name, old_name)) ) {
1386                 ret = crr_already_exists;
1387         }
1388
1389         else if (CtdlGetRoom(&qrbuf, old_name) != 0) {
1390                 ret = crr_room_not_found;
1391         }
1392
1393         else if ( (CC->user.axlevel < AxAideU) && (!CC->internal_pgm)
1394                   && (CC->user.usernum != qrbuf.QRroomaide)
1395                   && ( (((qrbuf.QRflags & QR_MAILBOX) == 0) || (atol(qrbuf.QRname) != CC->user.usernum))) )  {
1396                 ret = crr_access_denied;
1397         }
1398
1399         else if (CtdlIsNonEditable(&qrbuf)) {
1400                 ret = crr_noneditable;
1401         }
1402
1403         else {
1404                 /* Rename it */
1405                 safestrncpy(actual_old_name, qrbuf.QRname, sizeof actual_old_name);
1406                 if (qrbuf.QRflags & QR_MAILBOX) {
1407                         owner = atol(qrbuf.QRname);
1408                 }
1409                 if ( (owner > 0L) && (atol(new_name) == 0L) ) {
1410                         snprintf(qrbuf.QRname, sizeof(qrbuf.QRname),
1411                                         "%010ld.%s", owner, new_name);
1412                 }
1413                 else {
1414                         safestrncpy(qrbuf.QRname, new_name,
1415                                                 sizeof(qrbuf.QRname));
1416                 }
1417
1418                 /* Reject change of floor for baseroom/aideroom */
1419                 if (!strncasecmp(old_name, config.c_baseroom, ROOMNAMELEN) ||
1420                     !strncasecmp(old_name, config.c_aideroom, ROOMNAMELEN)) {
1421                         new_floor = 0;
1422                 }
1423
1424                 /* Take care of floor stuff */
1425                 old_floor = qrbuf.QRfloor;
1426                 if (new_floor < 0) {
1427                         new_floor = old_floor;
1428                 }
1429                 qrbuf.QRfloor = new_floor;
1430                 CtdlPutRoom(&qrbuf);
1431
1432                 begin_critical_section(S_CONFIG);
1433
1434                 /* If baseroom/aideroom name changes, update config */
1435                 if (!strncasecmp(old_name, config.c_baseroom, ROOMNAMELEN)) {
1436                         safestrncpy(config.c_baseroom, new_name, ROOMNAMELEN);
1437                         put_config();
1438                 }
1439                 if (!strncasecmp(old_name, config.c_aideroom, ROOMNAMELEN)) {
1440                         safestrncpy(config.c_aideroom, new_name, ROOMNAMELEN);
1441                         put_config();
1442                 }
1443
1444                 end_critical_section(S_CONFIG);
1445
1446                 /* If the room name changed, then there are now two room
1447                  * records, so we have to delete the old one.
1448                  */
1449                 if (strcasecmp(new_name, old_name)) {
1450                         b_deleteroom(actual_old_name);
1451                 }
1452
1453                 ret = crr_ok;
1454         }
1455
1456         end_critical_section(S_ROOMS);
1457
1458         /* Adjust the floor reference counts if necessary */
1459         if (new_floor != old_floor) {
1460                 lgetfloor(&flbuf, old_floor);
1461                 --flbuf.f_ref_count;
1462                 lputfloor(&flbuf, old_floor);
1463                 syslog(LOG_DEBUG, "Reference count for floor %d is now %d\n", old_floor, flbuf.f_ref_count);
1464                 lgetfloor(&flbuf, new_floor);
1465                 ++flbuf.f_ref_count;
1466                 lputfloor(&flbuf, new_floor);
1467                 syslog(LOG_DEBUG, "Reference count for floor %d is now %d\n", new_floor, flbuf.f_ref_count);
1468         }
1469
1470         /* ...and everybody say "YATTA!" */
1471         return(ret);
1472 }
1473
1474
1475 /*
1476  * set room parameters (aide or room aide command)
1477  */
1478 void cmd_setr(char *args)
1479 {
1480         char buf[256];
1481         int new_order = 0;
1482         int r;
1483         int new_floor;
1484         char new_name[ROOMNAMELEN];
1485
1486         if (CtdlAccessCheck(ac_logged_in)) return;
1487
1488         if (num_parms(args) >= 6) {
1489                 new_floor = extract_int(args, 5);
1490         } else {
1491                 new_floor = (-1);       /* don't change the floor */
1492         }
1493
1494         /* When is a new name more than just a new name?  When the old name
1495          * has a namespace prefix.
1496          */
1497         if (CC->room.QRflags & QR_MAILBOX) {
1498                 sprintf(new_name, "%010ld.", atol(CC->room.QRname) );
1499         } else {
1500                 safestrncpy(new_name, "", sizeof new_name);
1501         }
1502         extract_token(&new_name[strlen(new_name)], args, 0, '|', (sizeof new_name - strlen(new_name)));
1503
1504         r = CtdlRenameRoom(CC->room.QRname, new_name, new_floor);
1505
1506         if (r == crr_room_not_found) {
1507                 cprintf("%d Internal error - room not found?\n", ERROR + INTERNAL_ERROR);
1508         } else if (r == crr_already_exists) {
1509                 cprintf("%d '%s' already exists.\n",
1510                         ERROR + ALREADY_EXISTS, new_name);
1511         } else if (r == crr_noneditable) {
1512                 cprintf("%d Cannot edit this room.\n", ERROR + NOT_HERE);
1513         } else if (r == crr_invalid_floor) {
1514                 cprintf("%d Target floor does not exist.\n",
1515                         ERROR + INVALID_FLOOR_OPERATION);
1516         } else if (r == crr_access_denied) {
1517                 cprintf("%d You do not have permission to edit '%s'\n",
1518                         ERROR + HIGHER_ACCESS_REQUIRED,
1519                         CC->room.QRname);
1520         } else if (r != crr_ok) {
1521                 cprintf("%d Error: CtdlRenameRoom() returned %d\n",
1522                         ERROR + INTERNAL_ERROR, r);
1523         }
1524
1525         if (r != crr_ok) {
1526                 return;
1527         }
1528
1529         CtdlGetRoom(&CC->room, new_name);
1530
1531         /* Now we have to do a bunch of other stuff */
1532
1533         if (num_parms(args) >= 7) {
1534                 new_order = extract_int(args, 6);
1535                 if (new_order < 1)
1536                         new_order = 1;
1537                 if (new_order > 127)
1538                         new_order = 127;
1539         }
1540
1541         CtdlGetRoomLock(&CC->room, CC->room.QRname);
1542
1543         /* Directory room */
1544         extract_token(buf, args, 2, '|', sizeof buf);
1545         buf[15] = 0;
1546         safestrncpy(CC->room.QRdirname, buf,
1547                 sizeof CC->room.QRdirname);
1548
1549         /* Default view */
1550         if (num_parms(args) >= 8) {
1551                 CC->room.QRdefaultview = extract_int(args, 7);
1552         }
1553
1554         /* Second set of flags */
1555         if (num_parms(args) >= 9) {
1556                 CC->room.QRflags2 = extract_int(args, 8);
1557         }
1558
1559         /* Misc. flags */
1560         CC->room.QRflags = (extract_int(args, 3) | QR_INUSE);
1561         /* Clean up a client boo-boo: if the client set the room to
1562          * guess-name or passworded, ensure that the private flag is
1563          * also set.
1564          */
1565         if ((CC->room.QRflags & QR_GUESSNAME)
1566             || (CC->room.QRflags & QR_PASSWORDED))
1567                 CC->room.QRflags |= QR_PRIVATE;
1568
1569         /* Some changes can't apply to BASEROOM */
1570         if (!strncasecmp(CC->room.QRname, config.c_baseroom,
1571                          ROOMNAMELEN)) {
1572                 CC->room.QRorder = 0;
1573                 CC->room.QRpasswd[0] = '\0';
1574                 CC->room.QRflags &= ~(QR_PRIVATE & QR_PASSWORDED &
1575                         QR_GUESSNAME & QR_PREFONLY & QR_MAILBOX);
1576                 CC->room.QRflags |= QR_PERMANENT;
1577         } else {
1578                 /* March order (doesn't apply to AIDEROOM) */
1579                 if (num_parms(args) >= 7)
1580                         CC->room.QRorder = (char) new_order;
1581                 /* Room password */
1582                 extract_token(buf, args, 1, '|', sizeof buf);
1583                 buf[10] = 0;
1584                 safestrncpy(CC->room.QRpasswd, buf,
1585                             sizeof CC->room.QRpasswd);
1586                 /* Kick everyone out if the client requested it
1587                  * (by changing the room's generation number)
1588                  */
1589                 if (extract_int(args, 4)) {
1590                         time(&CC->room.QRgen);
1591                 }
1592         }
1593         /* Some changes can't apply to AIDEROOM */
1594         if (!strncasecmp(CC->room.QRname, config.c_baseroom,
1595                          ROOMNAMELEN)) {
1596                 CC->room.QRorder = 0;
1597                 CC->room.QRflags &= ~QR_MAILBOX;
1598                 CC->room.QRflags |= QR_PERMANENT;
1599         }
1600
1601         /* Write the room record back to disk */
1602         CtdlPutRoomLock(&CC->room);
1603
1604         /* Create a room directory if necessary */
1605         if (CC->room.QRflags & QR_DIRECTORY) {
1606                 snprintf(buf, sizeof buf,"%s/%s",
1607                                  ctdl_file_dir,
1608                                  CC->room.QRdirname);
1609                 mkdir(buf, 0755);
1610         }
1611         snprintf(buf, sizeof buf, "The room \"%s\" has been edited by %s.\n",
1612                 CC->room.QRname,
1613                 (CC->logged_in ? CC->curr_user : "an administrator")
1614         );
1615         CtdlAideMessage(buf, "Room modification Message");
1616         cprintf("%d Ok\n", CIT_OK);
1617 }
1618
1619
1620
1621 /*
1622  * get the name of the room aide for this room
1623  */
1624 void cmd_geta(char *cmdbuf)
1625 {
1626         struct ctdluser usbuf;
1627
1628         if (CtdlAccessCheck(ac_logged_in)) return;
1629
1630         if (CtdlGetUserByNumber(&usbuf, CC->room.QRroomaide) == 0) {
1631                 cprintf("%d %s\n", CIT_OK, usbuf.fullname);
1632         } else {
1633                 cprintf("%d \n", CIT_OK);
1634         }
1635 }
1636
1637
1638 /*
1639  * set the room aide for this room
1640  */
1641 void cmd_seta(char *new_ra)
1642 {
1643         struct ctdluser usbuf;
1644         long newu;
1645         char buf[SIZ];
1646         int post_notice;
1647
1648         if (CtdlAccessCheck(ac_room_aide)) return;
1649
1650         if (CtdlGetUser(&usbuf, new_ra) != 0) {
1651                 newu = (-1L);
1652         } else {
1653                 newu = usbuf.usernum;
1654         }
1655
1656         CtdlGetRoomLock(&CC->room, CC->room.QRname);
1657         post_notice = 0;
1658         if (CC->room.QRroomaide != newu) {
1659                 post_notice = 1;
1660         }
1661         CC->room.QRroomaide = newu;
1662         CtdlPutRoomLock(&CC->room);
1663
1664         /*
1665          * We have to post the change notice _after_ writing changes to
1666          * the room table, otherwise it would deadlock!
1667          */
1668         if (post_notice == 1) {
1669                 if (!IsEmptyStr(usbuf.fullname))
1670                         snprintf(buf, sizeof buf,
1671                                 "%s is now the room aide for \"%s\".\n",
1672                                 usbuf.fullname, CC->room.QRname);
1673                 else
1674                         snprintf(buf, sizeof buf,
1675                                 "There is now no room aide for \"%s\".\n",
1676                                 CC->room.QRname);
1677                 CtdlAideMessage(buf, "Aide Room Modification");
1678         }
1679         cprintf("%d Ok\n", CIT_OK);
1680 }
1681
1682 /*
1683  * retrieve info file for this room
1684  */
1685 void cmd_rinf(char *gargs)
1686 {
1687         char filename[128];
1688         char buf[SIZ];
1689         FILE *info_fp;
1690
1691         assoc_file_name(filename, sizeof filename, &CC->room, ctdl_info_dir);
1692         info_fp = fopen(filename, "r");
1693
1694         if (info_fp == NULL) {
1695                 cprintf("%d No info file.\n", ERROR + FILE_NOT_FOUND);
1696                 return;
1697         }
1698         cprintf("%d Info:\n", LISTING_FOLLOWS);
1699         while (fgets(buf, sizeof buf, info_fp) != NULL) {
1700                 if (!IsEmptyStr(buf))
1701                         buf[strlen(buf) - 1] = 0;
1702                 cprintf("%s\n", buf);
1703         }
1704         cprintf("000\n");
1705         fclose(info_fp);
1706 }
1707
1708 /*
1709  * Asynchronously schedule a room for deletion.  The room will appear
1710  * deleted to the user(s), but it won't actually get purged from the
1711  * database until THE DREADED AUTO-PURGER makes its next run.
1712  */
1713 void CtdlScheduleRoomForDeletion(struct ctdlroom *qrbuf)
1714 {
1715         char old_name[ROOMNAMELEN];
1716         static int seq = 0;
1717
1718         syslog(LOG_NOTICE, "Scheduling room <%s> for deletion\n",
1719                 qrbuf->QRname);
1720
1721         safestrncpy(old_name, qrbuf->QRname, sizeof old_name);
1722
1723         CtdlGetRoom(qrbuf, qrbuf->QRname);
1724
1725         /* Turn the room into a private mailbox owned by a user who doesn't
1726          * exist.  This will immediately make the room invisible to everyone,
1727          * and qualify the room for purging.
1728          */
1729         snprintf(qrbuf->QRname, sizeof qrbuf->QRname, "9999999999.%08lx.%04d.%s",
1730                 time(NULL),
1731                 ++seq,
1732                 old_name
1733         );
1734         qrbuf->QRflags |= QR_MAILBOX;
1735         time(&qrbuf->QRgen);    /* Use a timestamp as the new generation number  */
1736
1737         CtdlPutRoom(qrbuf);
1738
1739         b_deleteroom(old_name);
1740 }
1741
1742
1743
1744 /*
1745  * Back end processing to delete a room and everything associated with it
1746  * (This one is synchronous and should only get called by THE DREADED
1747  * AUTO-PURGER in serv_expire.c.  All user-facing code should call
1748  * the asynchronous schedule_room_for_deletion() instead.)
1749  */
1750 void CtdlDeleteRoom(struct ctdlroom *qrbuf)
1751 {
1752         struct floor flbuf;
1753         char filename[100];
1754         /* TODO: filename magic? does this realy work? */
1755
1756         syslog(LOG_NOTICE, "Deleting room <%s>\n", qrbuf->QRname);
1757
1758         /* Delete the info file */
1759         assoc_file_name(filename, sizeof filename, qrbuf, ctdl_info_dir);
1760         unlink(filename);
1761
1762         /* Delete the image file */
1763         assoc_file_name(filename, sizeof filename, qrbuf, ctdl_image_dir);
1764         unlink(filename);
1765
1766         /* Delete the room's network config file */
1767         assoc_file_name(filename, sizeof filename, qrbuf, ctdl_netcfg_dir);
1768         unlink(filename);
1769
1770         /* Delete the messages in the room
1771          * (Careful: this opens an S_ROOMS critical section!)
1772          */
1773         CtdlDeleteMessages(qrbuf->QRname, NULL, 0, "");
1774
1775         /* Flag the room record as not in use */
1776         CtdlGetRoomLock(qrbuf, qrbuf->QRname);
1777         qrbuf->QRflags = 0;
1778         CtdlPutRoomLock(qrbuf);
1779
1780         /* then decrement the reference count for the floor */
1781         lgetfloor(&flbuf, (int) (qrbuf->QRfloor));
1782         flbuf.f_ref_count = flbuf.f_ref_count - 1;
1783         lputfloor(&flbuf, (int) (qrbuf->QRfloor));
1784
1785         /* Delete the room record from the database! */
1786         b_deleteroom(qrbuf->QRname);
1787 }
1788
1789
1790
1791 /*
1792  * Check access control for deleting a room
1793  */
1794 int CtdlDoIHavePermissionToDeleteThisRoom(struct ctdlroom *qr) {
1795
1796         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1797                 return(0);
1798         }
1799
1800         if (CtdlIsNonEditable(qr)) {
1801                 return(0);
1802         }
1803
1804         /*
1805          * For mailboxes, check stuff
1806          */
1807         if (qr->QRflags & QR_MAILBOX) {
1808
1809                 if (strlen(qr->QRname) < 12) return(0); /* bad name */
1810
1811                 if (atol(qr->QRname) != CC->user.usernum) {
1812                         return(0);      /* not my room */
1813                 }
1814
1815                 /* Can't delete your Mail> room */
1816                 if (!strcasecmp(&qr->QRname[11], MAILROOM)) return(0);
1817
1818                 /* Otherwise it's ok */
1819                 return(1);
1820         }
1821
1822         /*
1823          * For normal rooms, just check for aide or room aide status.
1824          */
1825         return(is_room_aide());
1826 }
1827
1828 /*
1829  * aide command: kill the current room
1830  */
1831 void cmd_kill(char *argbuf)
1832 {
1833         char deleted_room_name[ROOMNAMELEN];
1834         char msg[SIZ];
1835         int kill_ok;
1836
1837         kill_ok = extract_int(argbuf, 0);
1838
1839         if (CtdlDoIHavePermissionToDeleteThisRoom(&CC->room) == 0) {
1840                 cprintf("%d Can't delete this room.\n", ERROR + NOT_HERE);
1841                 return;
1842         }
1843         if (kill_ok) {
1844                 if (CC->room.QRflags & QR_MAILBOX) {
1845                         safestrncpy(deleted_room_name, &CC->room.QRname[11], sizeof deleted_room_name);
1846                 }
1847                 else {
1848                         safestrncpy(deleted_room_name, CC->room.QRname, sizeof deleted_room_name);
1849                 }
1850
1851                 /* Do the dirty work */
1852                 CtdlScheduleRoomForDeletion(&CC->room);
1853
1854                 /* Return to the Lobby */
1855                 CtdlUserGoto(config.c_baseroom, 0, 0, NULL, NULL);
1856
1857                 /* tell the world what we did */
1858                 snprintf(msg, sizeof msg, "The room \"%s\" has been deleted by %s.\n",
1859                          deleted_room_name,
1860                         (CC->logged_in ? CC->curr_user : "an administrator")
1861                 );
1862                 CtdlAideMessage(msg, "Room Purger Message");
1863                 cprintf("%d '%s' deleted.\n", CIT_OK, deleted_room_name);
1864         } else {
1865                 cprintf("%d ok to delete.\n", CIT_OK);
1866         }
1867 }
1868
1869
1870 /*
1871  * Internal code to create a new room (returns room flags)
1872  *
1873  * Room types:  0=public, 1=hidden, 2=passworded, 3=invitation-only,
1874  *              4=mailbox, 5=mailbox, but caller supplies namespace
1875  */
1876 unsigned CtdlCreateRoom(char *new_room_name,
1877                      int new_room_type,
1878                      char *new_room_pass,
1879                      int new_room_floor,
1880                      int really_create,
1881                      int avoid_access,
1882                      int new_room_view)
1883 {
1884
1885         struct ctdlroom qrbuf;
1886         struct floor flbuf;
1887         visit vbuf;
1888
1889         syslog(LOG_DEBUG, "CtdlCreateRoom(name=%s, type=%d, view=%d)\n",
1890                 new_room_name, new_room_type, new_room_view);
1891
1892         if (CtdlGetRoom(&qrbuf, new_room_name) == 0) {
1893                 syslog(LOG_DEBUG, "%s already exists.\n", new_room_name);
1894                 return(0);
1895         }
1896
1897         memset(&qrbuf, 0, sizeof(struct ctdlroom));
1898         safestrncpy(qrbuf.QRpasswd, new_room_pass, sizeof qrbuf.QRpasswd);
1899         qrbuf.QRflags = QR_INUSE;
1900         if (new_room_type > 0)
1901                 qrbuf.QRflags = (qrbuf.QRflags | QR_PRIVATE);
1902         if (new_room_type == 1)
1903                 qrbuf.QRflags = (qrbuf.QRflags | QR_GUESSNAME);
1904         if (new_room_type == 2)
1905                 qrbuf.QRflags = (qrbuf.QRflags | QR_PASSWORDED);
1906         if ( (new_room_type == 4) || (new_room_type == 5) ) {
1907                 qrbuf.QRflags = (qrbuf.QRflags | QR_MAILBOX);
1908                 /* qrbuf.QRflags2 |= QR2_SUBJECTREQ; */
1909         }
1910
1911         /* If the user is requesting a personal room, set up the room
1912          * name accordingly (prepend the user number)
1913          */
1914         if (new_room_type == 4) {
1915                 CtdlMailboxName(qrbuf.QRname, sizeof qrbuf.QRname, &CC->user, new_room_name);
1916         }
1917         else {
1918                 safestrncpy(qrbuf.QRname, new_room_name, sizeof qrbuf.QRname);
1919         }
1920
1921         /* If the room is private, and the system administrator has elected
1922          * to automatically grant room aide privileges, do so now.
1923          */
1924         if ((qrbuf.QRflags & QR_PRIVATE) && (CREATAIDE == 1)) {
1925                 qrbuf.QRroomaide = CC->user.usernum;
1926         }
1927         /* Blog owners automatically become room aides of their blogs.
1928          * (In the future we will offer a site-wide configuration setting to suppress this behavior.)
1929          */
1930         else if (new_room_view == VIEW_BLOG) {
1931                 qrbuf.QRroomaide = CC->user.usernum;
1932         }
1933         /* Otherwise, set the room aide to undefined.
1934          */
1935         else {
1936                 qrbuf.QRroomaide = (-1L);
1937         }
1938
1939         /*
1940          * If the caller is only interested in testing whether this will work,
1941          * return now without creating the room.
1942          */
1943         if (!really_create) return (qrbuf.QRflags);
1944
1945         qrbuf.QRnumber = get_new_room_number();
1946         qrbuf.QRhighest = 0L;   /* No messages in this room yet */
1947         time(&qrbuf.QRgen);     /* Use a timestamp as the generation number */
1948         qrbuf.QRfloor = new_room_floor;
1949         qrbuf.QRdefaultview = new_room_view;
1950
1951         /* save what we just did... */
1952         CtdlPutRoom(&qrbuf);
1953
1954         /* bump the reference count on whatever floor the room is on */
1955         lgetfloor(&flbuf, (int) qrbuf.QRfloor);
1956         flbuf.f_ref_count = flbuf.f_ref_count + 1;
1957         lputfloor(&flbuf, (int) qrbuf.QRfloor);
1958
1959         /* Grant the creator access to the room unless the avoid_access
1960          * parameter was specified.
1961          */
1962         if ( (CC->logged_in) && (avoid_access == 0) ) {
1963                 CtdlGetRelationship(&vbuf, &CC->user, &qrbuf);
1964                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
1965                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
1966                 CtdlSetRelationship(&vbuf, &CC->user, &qrbuf);
1967         }
1968
1969         /* resume our happy day */
1970         return (qrbuf.QRflags);
1971 }
1972
1973
1974 /*
1975  * create a new room
1976  */
1977 void cmd_cre8(char *args)
1978 {
1979         int cre8_ok;
1980         char new_room_name[ROOMNAMELEN];
1981         int new_room_type;
1982         char new_room_pass[32];
1983         int new_room_floor;
1984         int new_room_view;
1985         char *notification_message = NULL;
1986         unsigned newflags;
1987         struct floor *fl;
1988         int avoid_access = 0;
1989
1990         cre8_ok = extract_int(args, 0);
1991         extract_token(new_room_name, args, 1, '|', sizeof new_room_name);
1992         new_room_name[ROOMNAMELEN - 1] = 0;
1993         new_room_type = extract_int(args, 2);
1994         extract_token(new_room_pass, args, 3, '|', sizeof new_room_pass);
1995         avoid_access = extract_int(args, 5);
1996         new_room_view = extract_int(args, 6);
1997         new_room_pass[9] = 0;
1998         new_room_floor = 0;
1999
2000         if ((IsEmptyStr(new_room_name)) && (cre8_ok == 1)) {
2001                 cprintf("%d Invalid room name.\n", ERROR + ILLEGAL_VALUE);
2002                 return;
2003         }
2004
2005         if (!strcasecmp(new_room_name, MAILROOM)) {
2006                 cprintf("%d '%s' already exists.\n",
2007                         ERROR + ALREADY_EXISTS, new_room_name);
2008                 return;
2009         }
2010
2011         if (num_parms(args) >= 5) {
2012                 fl = CtdlGetCachedFloor(extract_int(args, 4));
2013                 if (fl == NULL) {
2014                         cprintf("%d Invalid floor number.\n",
2015                                 ERROR + INVALID_FLOOR_OPERATION);
2016                         return;
2017                 }
2018                 else if ((fl->f_flags & F_INUSE) == 0) {
2019                         cprintf("%d Invalid floor number.\n",
2020                                 ERROR + INVALID_FLOOR_OPERATION);
2021                         return;
2022                 } else {
2023                         new_room_floor = extract_int(args, 4);
2024                 }
2025         }
2026
2027         if (CtdlAccessCheck(ac_logged_in)) return;
2028
2029         if (CC->user.axlevel < config.c_createax && !CC->internal_pgm) {
2030                 cprintf("%d You need higher access to create rooms.\n",
2031                         ERROR + HIGHER_ACCESS_REQUIRED);
2032                 return;
2033         }
2034
2035         if ((IsEmptyStr(new_room_name)) && (cre8_ok == 0)) {
2036                 cprintf("%d Ok to create rooms.\n", CIT_OK);
2037                 return;
2038         }
2039
2040         if ((new_room_type < 0) || (new_room_type > 5)) {
2041                 cprintf("%d Invalid room type.\n", ERROR + ILLEGAL_VALUE);
2042                 return;
2043         }
2044
2045         if (new_room_type == 5) {
2046                 if (CC->user.axlevel < AxAideU) {
2047                         cprintf("%d Higher access required\n",
2048                                 ERROR + HIGHER_ACCESS_REQUIRED);
2049                         return;
2050                 }
2051         }
2052
2053         /* Check to make sure the requested room name doesn't already exist */
2054         newflags = CtdlCreateRoom(new_room_name,
2055                                 new_room_type, new_room_pass, new_room_floor,
2056                                 0, avoid_access, new_room_view);
2057         if (newflags == 0) {
2058                 cprintf("%d '%s' already exists.\n",
2059                         ERROR + ALREADY_EXISTS, new_room_name);
2060                 return;
2061         }
2062
2063         if (cre8_ok == 0) {
2064                 cprintf("%d OK to create '%s'\n", CIT_OK, new_room_name);
2065                 return;
2066         }
2067
2068         /* If we reach this point, the room needs to be created. */
2069
2070         newflags = CtdlCreateRoom(new_room_name,
2071                            new_room_type, new_room_pass, new_room_floor, 1, 0,
2072                            new_room_view);
2073
2074         /* post a message in Aide> describing the new room */
2075         notification_message = malloc(1024);
2076         snprintf(notification_message, 1024,
2077                 "A new room called \"%s\" has been created by %s%s%s%s%s%s\n",
2078                 new_room_name,
2079                 (CC->logged_in ? CC->curr_user : "an administrator"),
2080                 ((newflags & QR_MAILBOX) ? " [personal]" : ""),
2081                 ((newflags & QR_PRIVATE) ? " [private]" : ""),
2082                 ((newflags & QR_GUESSNAME) ? " [hidden]" : ""),
2083                 ((newflags & QR_PASSWORDED) ? " Password: " : ""),
2084                 ((newflags & QR_PASSWORDED) ? new_room_pass : "")
2085         );
2086         CtdlAideMessage(notification_message, "Room Creation Message");
2087         free(notification_message);
2088
2089         cprintf("%d '%s' has been created.\n", CIT_OK, new_room_name);
2090 }
2091
2092
2093
2094 void cmd_einf(char *ok)
2095 {                               /* enter info file for current room */
2096         FILE *fp;
2097         char infofilename[SIZ];
2098         char buf[SIZ];
2099
2100         unbuffer_output();
2101
2102         if (CtdlAccessCheck(ac_room_aide)) return;
2103
2104         if (atoi(ok) == 0) {
2105                 cprintf("%d Ok.\n", CIT_OK);
2106                 return;
2107         }
2108         assoc_file_name(infofilename, sizeof infofilename, &CC->room, ctdl_info_dir);
2109         syslog(LOG_DEBUG, "opening\n");
2110         fp = fopen(infofilename, "w");
2111         syslog(LOG_DEBUG, "checking\n");
2112         if (fp == NULL) {
2113                 cprintf("%d Cannot open %s: %s\n",
2114                   ERROR + INTERNAL_ERROR, infofilename, strerror(errno));
2115                 return;
2116         }
2117         cprintf("%d Send info...\n", SEND_LISTING);
2118
2119         do {
2120                 client_getln(buf, sizeof buf);
2121                 if (strcmp(buf, "000"))
2122                         fprintf(fp, "%s\n", buf);
2123         } while (strcmp(buf, "000"));
2124         fclose(fp);
2125
2126         /* now update the room index so people will see our new info */
2127         CtdlGetRoomLock(&CC->room, CC->room.QRname);            /* lock so no one steps on us */
2128         CC->room.QRinfo = CC->room.QRhighest + 1L;
2129         CtdlPutRoomLock(&CC->room);
2130 }
2131
2132
2133 /*
2134  * cmd_lflr()   -  List all known floors
2135  */
2136 void cmd_lflr(char *gargs)
2137 {
2138         int a;
2139         struct floor flbuf;
2140
2141         if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
2142
2143         cprintf("%d Known floors:\n", LISTING_FOLLOWS);
2144
2145         for (a = 0; a < MAXFLOORS; ++a) {
2146                 CtdlGetFloor(&flbuf, a);
2147                 if (flbuf.f_flags & F_INUSE) {
2148                         cprintf("%d|%s|%d\n",
2149                                 a,
2150                                 flbuf.f_name,
2151                                 flbuf.f_ref_count);
2152                 }
2153         }
2154         cprintf("000\n");
2155 }
2156
2157
2158
2159 /*
2160  * create a new floor
2161  */
2162 void cmd_cflr(char *argbuf)
2163 {
2164         char new_floor_name[256];
2165         struct floor flbuf;
2166         int cflr_ok;
2167         int free_slot = (-1);
2168         int a;
2169
2170         extract_token(new_floor_name, argbuf, 0, '|', sizeof new_floor_name);
2171         cflr_ok = extract_int(argbuf, 1);
2172
2173         if (CtdlAccessCheck(ac_aide)) return;
2174
2175         if (IsEmptyStr(new_floor_name)) {
2176                 cprintf("%d Blank floor name not allowed.\n",
2177                         ERROR + ILLEGAL_VALUE);
2178                 return;
2179         }
2180
2181         for (a = 0; a < MAXFLOORS; ++a) {
2182                 CtdlGetFloor(&flbuf, a);
2183
2184                 /* note any free slots while we're scanning... */
2185                 if (((flbuf.f_flags & F_INUSE) == 0)
2186                     && (free_slot < 0))
2187                         free_slot = a;
2188
2189                 /* check to see if it already exists */
2190                 if ((!strcasecmp(flbuf.f_name, new_floor_name))
2191                     && (flbuf.f_flags & F_INUSE)) {
2192                         cprintf("%d Floor '%s' already exists.\n",
2193                                 ERROR + ALREADY_EXISTS,
2194                                 flbuf.f_name);
2195                         return;
2196                 }
2197         }
2198
2199         if (free_slot < 0) {
2200                 cprintf("%d There is no space available for a new floor.\n",
2201                         ERROR + INVALID_FLOOR_OPERATION);
2202                 return;
2203         }
2204         if (cflr_ok == 0) {
2205                 cprintf("%d ok to create...\n", CIT_OK);
2206                 return;
2207         }
2208         lgetfloor(&flbuf, free_slot);
2209         flbuf.f_flags = F_INUSE;
2210         flbuf.f_ref_count = 0;
2211         safestrncpy(flbuf.f_name, new_floor_name, sizeof flbuf.f_name);
2212         lputfloor(&flbuf, free_slot);
2213         cprintf("%d %d\n", CIT_OK, free_slot);
2214 }
2215
2216
2217
2218 /*
2219  * delete a floor
2220  */
2221 void cmd_kflr(char *argbuf)
2222 {
2223         struct floor flbuf;
2224         int floor_to_delete;
2225         int kflr_ok;
2226         int delete_ok;
2227
2228         floor_to_delete = extract_int(argbuf, 0);
2229         kflr_ok = extract_int(argbuf, 1);
2230
2231         if (CtdlAccessCheck(ac_aide)) return;
2232
2233         lgetfloor(&flbuf, floor_to_delete);
2234
2235         delete_ok = 1;
2236         if ((flbuf.f_flags & F_INUSE) == 0) {
2237                 cprintf("%d Floor %d not in use.\n",
2238                         ERROR + INVALID_FLOOR_OPERATION, floor_to_delete);
2239                 delete_ok = 0;
2240         } else {
2241                 if (flbuf.f_ref_count != 0) {
2242                         cprintf("%d Cannot delete; floor contains %d rooms.\n",
2243                                 ERROR + INVALID_FLOOR_OPERATION,
2244                                 flbuf.f_ref_count);
2245                         delete_ok = 0;
2246                 } else {
2247                         if (kflr_ok == 1) {
2248                                 cprintf("%d Ok\n", CIT_OK);
2249                         } else {
2250                                 cprintf("%d Ok to delete...\n", CIT_OK);
2251                         }
2252
2253                 }
2254
2255         }
2256
2257         if ((delete_ok == 1) && (kflr_ok == 1))
2258                 flbuf.f_flags = 0;
2259         lputfloor(&flbuf, floor_to_delete);
2260 }
2261
2262 /*
2263  * edit a floor
2264  */
2265 void cmd_eflr(char *argbuf)
2266 {
2267         struct floor flbuf;
2268         int floor_num;
2269         int np;
2270
2271         np = num_parms(argbuf);
2272         if (np < 1) {
2273                 cprintf("%d Usage error.\n", ERROR + ILLEGAL_VALUE);
2274                 return;
2275         }
2276
2277         if (CtdlAccessCheck(ac_aide)) return;
2278
2279         floor_num = extract_int(argbuf, 0);
2280         lgetfloor(&flbuf, floor_num);
2281         if ((flbuf.f_flags & F_INUSE) == 0) {
2282                 lputfloor(&flbuf, floor_num);
2283                 cprintf("%d Floor %d is not in use.\n",
2284                         ERROR + INVALID_FLOOR_OPERATION, floor_num);
2285                 return;
2286         }
2287         if (np >= 2)
2288                 extract_token(flbuf.f_name, argbuf, 1, '|', sizeof flbuf.f_name);
2289         lputfloor(&flbuf, floor_num);
2290
2291         cprintf("%d Ok\n", CIT_OK);
2292 }
2293
2294
2295 /*****************************************************************************/
2296 /*                      MODULE INITIALIZATION STUFF                          */
2297 /*****************************************************************************/
2298
2299 CTDL_MODULE_INIT(room_ops)
2300 {
2301         if (!threading) {
2302                 CtdlRegisterProtoHook(cmd_lrms, "LRMS", "List rooms");
2303                 CtdlRegisterProtoHook(cmd_lkra, "LKRA", "List all known rooms");
2304                 CtdlRegisterProtoHook(cmd_lkrn, "LKRN", "List known rooms with new messages");
2305                 CtdlRegisterProtoHook(cmd_lkro, "LKRO", "List known rooms without new messages");
2306                 CtdlRegisterProtoHook(cmd_lzrm, "LZRM", "List zapped rooms");
2307                 CtdlRegisterProtoHook(cmd_lprm, "LPRM", "List public rooms");
2308                 CtdlRegisterProtoHook(cmd_goto, "GOTO", "Goto a named room");
2309                 CtdlRegisterProtoHook(cmd_whok, "WHOK", "List users who know this room");
2310                 CtdlRegisterProtoHook(cmd_rdir, "RDIR", "List files in room directory");
2311                 CtdlRegisterProtoHook(cmd_getr, "GETR", "Get room parameters");
2312                 CtdlRegisterProtoHook(cmd_setr, "SETR", "Set room parameters");
2313                 CtdlRegisterProtoHook(cmd_geta, "GETA", "Get the room aide name");
2314                 CtdlRegisterProtoHook(cmd_seta, "SETA", "Set the room aide for this room");
2315                 CtdlRegisterProtoHook(cmd_rinf, "RINF", "Fetch room info file");
2316                 CtdlRegisterProtoHook(cmd_kill, "KILL", "Kill (delete) the current room");
2317                 CtdlRegisterProtoHook(cmd_cre8, "CRE8", "Create a new room");
2318                 CtdlRegisterProtoHook(cmd_einf, "EINF", "Enter info file for the current room");
2319                 CtdlRegisterProtoHook(cmd_lflr, "LFLR", "List all known floors");
2320                 CtdlRegisterProtoHook(cmd_cflr, "CFLR", "Create a new floor");
2321                 CtdlRegisterProtoHook(cmd_kflr, "KFLR", "Kill a floor");
2322                 CtdlRegisterProtoHook(cmd_eflr, "EFLR", "Edit a floor");
2323         }
2324         /* return our Subversion id for the Log */
2325         return "room_ops";
2326 }