citadel/room_ops.c

   1 /*
   2  * Server functions which perform operations on room objects.
   3  *
   4  * Copyright (c) 1987-2017 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, version 3.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include <stdio.h>
  16 #include <libcitadel.h>
  17
  18 #include "citserver.h"
  19 #include "ctdl_module.h"
  20 #include "config.h"
  21 #include "control.h"
  22 #include "user_ops.h"
  23 #include "room_ops.h"
  24
  25 struct floor *floorcache[MAXFLOORS];
  26
  27 /*
  28  * Determine whether the currently logged in session has permission to read
  29  * messages in the current room.
  30  */
  31 int CtdlDoIHavePermissionToReadMessagesInThisRoom(void) {
  32         if (    (!(CC->logged_in))
  33                 && (!(CC->internal_pgm))
  34                 && (!CtdlGetConfigInt("c_guest_logins"))
  35         ) {
  36                 return(om_not_logged_in);
  37         }
  38         return(om_ok);
  39 }
  40
  41
  42 /*
  43  * Check to see whether we have permission to post a message in the current
  44  * room.  Returns a *CITADEL ERROR CODE* and puts a message in errmsgbuf, or
  45  * returns 0 on success.
  46  */
  47 int CtdlDoIHavePermissionToPostInThisRoom(
  48         char *errmsgbuf,
  49         size_t n,
  50         const char* RemoteIdentifier,
  51         PostType PostPublic,
  52         int is_reply
  53         ) {
  54         int ra;
  55
  56         if (!(CC->logged_in) &&
  57             (PostPublic == POST_LOGGED_IN)) {
  58                 snprintf(errmsgbuf, n, "Not logged in.");
  59                 return (ERROR + NOT_LOGGED_IN);
  60         }
  61         else if (PostPublic == CHECK_EXISTANCE) {
  62                 return (0); // We're Evaling whether a recipient exists
  63         }
  64         else if (!(CC->logged_in)) {
  65
  66                 if ((CC->room.QRflags & QR_READONLY)) {
  67                         snprintf(errmsgbuf, n, "Not logged in.");
  68                         return (ERROR + NOT_LOGGED_IN);
  69                 }
  70                 if (CC->room.QRflags2 & QR2_MODERATED) {
  71                         snprintf(errmsgbuf, n, "Not logged in Moderation feature not yet implemented!");
  72                         return (ERROR + NOT_LOGGED_IN);
  73                 }
  74                 if ((PostPublic!=POST_LMTP) &&(CC->room.QRflags2 & QR2_SMTP_PUBLIC) == 0) {
  75
  76                         return CtdlNetconfigCheckRoomaccess(errmsgbuf, n, RemoteIdentifier);
  77                 }
  78                 return (0);
  79
  80         }
  81
  82         if ((CC->user.axlevel < AxProbU) && ((CC->room.QRflags & QR_MAILBOX) == 0))
  83         {
  84                 snprintf(errmsgbuf, n, "Need to be validated to enter (except in %s> to sysop)", MAILROOM);
  85                 return (ERROR + HIGHER_ACCESS_REQUIRED);
  86         }
  87
  88         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
  89
  90         if (ra & UA_POSTALLOWED) {
  91                 strcpy(errmsgbuf, "OK to post or reply here");
  92                 return(0);
  93         }
  94
  95         if ( (ra & UA_REPLYALLOWED) && (is_reply) ) {
  96                 /*
  97                  * To be thorough, we ought to check to see if the message they are
  98                  * replying to is actually a valid one in this room, but unless this
  99                  * actually becomes a problem we'll go with high performance instead.
 100                  */
 101                 strcpy(errmsgbuf, "OK to reply here");
 102                 return(0);
 103         }
 104
 105         if ( (ra & UA_REPLYALLOWED) && (!is_reply) ) {
 106                 /* Clarify what happened with a better error message */
 107                 snprintf(errmsgbuf, n, "You may only reply to existing messages here.");
 108                 return (ERROR + HIGHER_ACCESS_REQUIRED);
 109         }
 110
 111         snprintf(errmsgbuf, n, "Higher access is required to post in this room.");
 112         return (ERROR + HIGHER_ACCESS_REQUIRED);
 113
 114 }
 115
 116
 117 /*
 118  * Check whether the current user has permission to delete messages from
 119  * the current room (returns 1 for yes, 0 for no)
 120  */
 121 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
 122         int ra;
 123         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
 124         if (ra & UA_DELETEALLOWED) return(1);
 125         return(0);
 126 }
 127
 128
 129 /*
 130  * Retrieve access control information for any user/room pair.
 131  * Yes, it has a couple of gotos.  If you don't like that, go die in a car fire.
 132  */
 133 void CtdlRoomAccess(struct ctdlroom *roombuf, struct ctdluser *userbuf,
 134                 int *result, int *view)
 135 {
 136         int retval = 0;
 137         visit vbuf;
 138         int is_me = 0;
 139         int is_guest = 0;
 140
 141         if (userbuf == &CC->user) {
 142                 is_me = 1;
 143         }
 144
 145         if ((is_me) && (CtdlGetConfigInt("c_guest_logins")) && (!CC->logged_in)) {
 146                 is_guest = 1;
 147         }
 148
 149         /* for internal programs, always do everything */
 150         if (((CC->internal_pgm)) && (roombuf->QRflags & QR_INUSE)) {
 151                 retval = (UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED);
 152                 vbuf.v_view = 0;
 153                 goto SKIP_EVERYTHING;
 154         }
 155
 156         /* If guest mode is enabled, always grant access to the Lobby */
 157         if ((is_guest) && (!strcasecmp(roombuf->QRname, BASEROOM))) {
 158                 retval = (UA_KNOWN | UA_GOTOALLOWED);
 159                 vbuf.v_view = 0;
 160                 goto SKIP_EVERYTHING;
 161         }
 162
 163         /* Locate any applicable user/room relationships */
 164         if (is_guest) {
 165                 memset(&vbuf, 0, sizeof vbuf);
 166         }
 167         else {
 168                 CtdlGetRelationship(&vbuf, userbuf, roombuf);
 169         }
 170
 171         /* Force the properties of the Aide room */
 172         if (!strcasecmp(roombuf->QRname, CtdlGetConfigStr("c_aideroom"))) {
 173                 if (userbuf->axlevel >= AxAideU) {
 174                         retval = UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED;
 175                 } else {
 176                         retval = 0;
 177                 }
 178                 goto NEWMSG;
 179         }
 180
 181         /* If this is a public room, it's accessible... */
 182         if (    ((roombuf->QRflags & QR_PRIVATE) == 0)
 183                 && ((roombuf->QRflags & QR_MAILBOX) == 0)
 184         ) {
 185                 retval = retval | UA_KNOWN | UA_GOTOALLOWED;
 186         }
 187
 188         /* If this is a preferred users only room, check access level */
 189         if (roombuf->QRflags & QR_PREFONLY) {
 190                 if (userbuf->axlevel < AxPrefU) {
 191                         retval = retval & ~UA_KNOWN & ~UA_GOTOALLOWED;
 192                 }
 193         }
 194
 195         /* For private rooms, check the generation number matchups */
 196         if (    (roombuf->QRflags & QR_PRIVATE)
 197                 && ((roombuf->QRflags & QR_MAILBOX) == 0)
 198         ) {
 199
 200                 /* An explicit match means the user belongs in this room */
 201                 if (vbuf.v_flags & V_ACCESS) {
 202                         retval = retval | UA_KNOWN | UA_GOTOALLOWED;
 203                 }
 204                 /* Otherwise, check if this is a guess-name or passworded
 205                  * room.  If it is, a goto may at least be attempted
 206                  */
 207                 else if (       (roombuf->QRflags & QR_PRIVATE)
 208                                 || (roombuf->QRflags & QR_PASSWORDED)
 209                 ) {
 210                         retval = retval & ~UA_KNOWN;
 211                         retval = retval | UA_GOTOALLOWED;
 212                 }
 213         }
 214
 215         /* For mailbox rooms, also check the namespace */
 216         /* Also, mailbox owners can delete their messages */
 217         if ( (roombuf->QRflags & QR_MAILBOX) && (atol(roombuf->QRname) != 0)) {
 218                 if (userbuf->usernum == atol(roombuf->QRname)) {
 219                         retval = retval | UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED;
 220                 }
 221                 /* An explicit match means the user belongs in this room */
 222                 if (vbuf.v_flags & V_ACCESS) {
 223                         retval = retval | UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED;
 224                 }
 225         }
 226
 227         /* For non-mailbox rooms... */
 228         else {
 229
 230                 /* User is allowed to post in the room unless:
 231                  * - User is not validated
 232                  * - User has no net privileges and it is a shared network room
 233                  * - It is a read-only room
 234                  * - It is a blog room (in which case we only allow replies to existing messages)
 235                  */
 236                 int post_allowed = 1;
 237                 int reply_allowed = 1;
 238                 if (userbuf->axlevel < AxProbU) {
 239                         post_allowed = 0;
 240                         reply_allowed = 0;
 241                 }
 242                 if ((userbuf->axlevel < AxNetU) && (roombuf->QRflags & QR_NETWORK)) {
 243                         post_allowed = 0;
 244                         reply_allowed = 0;
 245                 }
 246                 if (roombuf->QRflags & QR_READONLY) {
 247                         post_allowed = 0;
 248                         reply_allowed = 0;
 249                 }
 250                 if (roombuf->QRdefaultview == VIEW_BLOG) {
 251                         post_allowed = 0;
 252                 }
 253                 if (post_allowed) {
 254                         retval = retval | UA_POSTALLOWED | UA_REPLYALLOWED;
 255                 }
 256                 if (reply_allowed) {
 257                         retval = retval | UA_REPLYALLOWED;
 258                 }
 259
 260                 /* If "collaborative deletion" is active for this room, any user who can post
 261                  * is also allowed to delete
 262                  */
 263                 if (roombuf->QRflags2 & QR2_COLLABDEL) {
 264                         if (retval & UA_POSTALLOWED) {
 265                                 retval = retval | UA_DELETEALLOWED;
 266                         }
 267                 }
 268
 269         }
 270
 271         /* Check to see if the user has forgotten this room */
 272         if (vbuf.v_flags & V_FORGET) {
 273                 retval = retval & ~UA_KNOWN;
 274                 if (    ( ((roombuf->QRflags & QR_PRIVATE) == 0)
 275                         && ((roombuf->QRflags & QR_MAILBOX) == 0)
 276                 ) || (  (roombuf->QRflags & QR_MAILBOX)
 277                         && (atol(roombuf->QRname) == CC->user.usernum))
 278                 ) {
 279                         retval = retval | UA_ZAPPED;
 280                 }
 281         }
 282
 283         /* If user is explicitly locked out of this room, deny everything */
 284         if (vbuf.v_flags & V_LOCKOUT) {
 285                 retval = retval & ~UA_KNOWN & ~UA_GOTOALLOWED & ~UA_POSTALLOWED & ~UA_REPLYALLOWED;
 286         }
 287
 288         /* Aides get access to all private rooms */
 289         if (    (userbuf->axlevel >= AxAideU)
 290                 && ((roombuf->QRflags & QR_MAILBOX) == 0)
 291         ) {
 292                 if (vbuf.v_flags & V_FORGET) {
 293                         retval = retval | UA_GOTOALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 294                 }
 295                 else {
 296                         retval = retval | UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 297                 }
 298         }
 299
 300         /* Aides can gain access to mailboxes as well, but they don't show
 301          * by default.
 302          */
 303         if (    (userbuf->axlevel >= AxAideU)
 304                 && (roombuf->QRflags & QR_MAILBOX)
 305         ) {
 306                 retval = retval | UA_GOTOALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 307         }
 308
 309         /* Aides and Room Aides have admin privileges */
 310         if (    (userbuf->axlevel >= AxAideU)
 311                 || (userbuf->usernum == roombuf->QRroomaide)
 312         ) {
 313                 retval = retval | UA_ADMINALLOWED | UA_DELETEALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 314         }
 315
 316 NEWMSG: /* By the way, we also check for the presence of new messages */
 317         if (is_msg_in_sequence_set(vbuf.v_seen, roombuf->QRhighest) == 0) {
 318                 retval = retval | UA_HASNEWMSGS;
 319         }
 320
 321         /* System rooms never show up in the list. */
 322         if (roombuf->QRflags2 & QR2_SYSTEM) {
 323                 retval = retval & ~UA_KNOWN;
 324         }
 325
 326 SKIP_EVERYTHING:
 327         /* Now give the caller the information it wants. */
 328         if (result != NULL) *result = retval;
 329         if (view != NULL) *view = vbuf.v_view;
 330 }
 331
 332
 333 /*
 334  * Self-checking stuff for a room record read into memory
 335  */
 336 void room_sanity_check(struct ctdlroom *qrbuf)
 337 {
 338         /* Mailbox rooms are always on the lowest floor */
 339         if (qrbuf->QRflags & QR_MAILBOX) {
 340                 qrbuf->QRfloor = 0;
 341         }
 342         /* Listing order of 0 is illegal except for base rooms */
 343         if (qrbuf->QRorder == 0)
 344                 if (    !(qrbuf->QRflags & QR_MAILBOX)
 345                         && strncasecmp(qrbuf->QRname, CtdlGetConfigStr("c_baseroom"), ROOMNAMELEN)
 346                         && strncasecmp(qrbuf->QRname, CtdlGetConfigStr("c_aideroom"), ROOMNAMELEN)
 347                 ) {
 348                         qrbuf->QRorder = 64;
 349                 }
 350 }
 351
 352
 353 /*
 354  * CtdlGetRoom()  -  retrieve room data from disk
 355  */
 356 int CtdlGetRoom(struct ctdlroom *qrbuf, const char *room_name)
 357 {
 358         struct cdbdata *cdbqr;
 359         char lowercase_name[ROOMNAMELEN];
 360         char personal_lowercase_name[ROOMNAMELEN];
 361         const char *sptr;
 362         char *dptr, *eptr;
 363
 364         dptr = lowercase_name;
 365         sptr = room_name;
 366         eptr = (dptr + (sizeof lowercase_name - 1));
 367         while (!IsEmptyStr(sptr) && (dptr < eptr)){
 368                 *dptr = tolower(*sptr);
 369                 sptr++; dptr++;
 370         }
 371         *dptr = '\0';
 372
 373         memset(qrbuf, 0, sizeof(struct ctdlroom));
 374
 375         /* First, try the public namespace */
 376         cdbqr = cdb_fetch(CDB_ROOMS,
 377                           lowercase_name, strlen(lowercase_name));
 378
 379         /* If that didn't work, try the user's personal namespace */
 380         if (cdbqr == NULL) {
 381                 snprintf(personal_lowercase_name,
 382                          sizeof personal_lowercase_name, "%010ld.%s",
 383                          CC->user.usernum, lowercase_name);
 384                 cdbqr = cdb_fetch(CDB_ROOMS,
 385                                   personal_lowercase_name,
 386                                   strlen(personal_lowercase_name));
 387         }
 388         if (cdbqr != NULL) {
 389                 memcpy(qrbuf, cdbqr->ptr,
 390                        ((cdbqr->len > sizeof(struct ctdlroom)) ?
 391                         sizeof(struct ctdlroom) : cdbqr->len));
 392                 cdb_free(cdbqr);
 393
 394                 room_sanity_check(qrbuf);
 395
 396                 return (0);
 397         } else {
 398                 return (1);
 399         }
 400 }
 401
 402
 403 /*
 404  * CtdlGetRoomLock()  -  same as getroom() but locks the record (if supported)
 405  */
 406 int CtdlGetRoomLock(struct ctdlroom *qrbuf, const char *room_name)
 407 {
 408         register int retval;
 409         retval = CtdlGetRoom(qrbuf, room_name);
 410         if (retval == 0) begin_critical_section(S_ROOMS);
 411         return(retval);
 412 }
 413
 414
 415 /*
 416  * b_putroom()  -  back end to putroom() and b_deleteroom()
 417  *              (if the supplied buffer is NULL, delete the room record)
 418  */
 419 void b_putroom(struct ctdlroom *qrbuf, char *room_name)
 420 {
 421         char lowercase_name[ROOMNAMELEN];
 422         char *aptr, *bptr;
 423         long len;
 424
 425         aptr = room_name;
 426         bptr = lowercase_name;
 427         while (!IsEmptyStr(aptr))
 428         {
 429                 *bptr = tolower(*aptr);
 430                 aptr++;
 431                 bptr++;
 432         }
 433         *bptr='\0';
 434
 435         len = bptr - lowercase_name;
 436         if (qrbuf == NULL) {
 437                 cdb_delete(CDB_ROOMS, lowercase_name, len);
 438         } else {
 439                 time(&qrbuf->QRmtime);
 440                 cdb_store(CDB_ROOMS, lowercase_name, len, qrbuf, sizeof(struct ctdlroom));
 441         }
 442 }
 443
 444
 445 /*
 446  * CtdlPutRoom()  -  store room data to disk
 447  */
 448 void CtdlPutRoom(struct ctdlroom *qrbuf) {
 449         b_putroom(qrbuf, qrbuf->QRname);
 450 }
 451
 452
 453 /*
 454  * b_deleteroom()  -  delete a room record from disk
 455  */
 456 void b_deleteroom(char *room_name) {
 457         b_putroom(NULL, room_name);
 458 }
 459
 460
 461 /*
 462  * CtdlPutRoomLock()  -  same as CtdlPutRoom() but unlocks the record (if supported)
 463  */
 464 void CtdlPutRoomLock(struct ctdlroom *qrbuf)
 465 {
 466         CtdlPutRoom(qrbuf);
 467         end_critical_section(S_ROOMS);
 468 }
 469
 470
 471 /*
 472  * CtdlGetFloorByName()  -  retrieve the number of the named floor
 473  * return < 0 if not found else return floor number
 474  */
 475 int CtdlGetFloorByName(const char *floor_name)
 476 {
 477         int a;
 478         struct floor *flbuf = NULL;
 479
 480         for (a = 0; a < MAXFLOORS; ++a) {
 481                 flbuf = CtdlGetCachedFloor(a);
 482
 483                 /* check to see if it already exists */
 484                 if ((!strcasecmp(flbuf->f_name, floor_name))
 485                     && (flbuf->f_flags & F_INUSE)) {
 486                         return a;
 487                 }
 488         }
 489         return -1;
 490 }
 491
 492
 493 /*
 494  * CtdlGetFloorByNameLock()  -  retrieve floor number for given floor and lock the floor list.
 495  */
 496 int CtdlGetFloorByNameLock(const char *floor_name)
 497 {
 498         begin_critical_section(S_FLOORTAB);
 499         return CtdlGetFloorByName(floor_name);
 500 }
 501
 502
 503
 504 /*
 505  * CtdlGetAvailableFloor()  -  Return number of first unused floor
 506  * return < 0 if none available
 507  */
 508 int CtdlGetAvailableFloor(void)
 509 {
 510         int a;
 511         struct floor *flbuf = NULL;
 512
 513         for (a = 0; a < MAXFLOORS; a++) {
 514                 flbuf = CtdlGetCachedFloor(a);
 515
 516                 /* check to see if it already exists */
 517                 if ((flbuf->f_flags & F_INUSE) == 0) {
 518                         return a;
 519                 }
 520         }
 521         return -1;
 522 }
 523
 524
 525 /*
 526  * CtdlGetFloor()  -  retrieve floor data from disk
 527  */
 528 void CtdlGetFloor(struct floor *flbuf, int floor_num)
 529 {
 530         struct cdbdata *cdbfl;
 531
 532         memset(flbuf, 0, sizeof(struct floor));
 533         cdbfl = cdb_fetch(CDB_FLOORTAB, &floor_num, sizeof(int));
 534         if (cdbfl != NULL) {
 535                 memcpy(flbuf, cdbfl->ptr,
 536                        ((cdbfl->len > sizeof(struct floor)) ?
 537                         sizeof(struct floor) : cdbfl->len));
 538                 cdb_free(cdbfl);
 539         } else {
 540                 if (floor_num == 0) {
 541                         safestrncpy(flbuf->f_name, "Main Floor",
 542                                 sizeof flbuf->f_name);
 543                         flbuf->f_flags = F_INUSE;
 544                         flbuf->f_ref_count = 3;
 545                 }
 546         }
 547
 548 }
 549
 550
 551 /*
 552  * lgetfloor()  -  same as CtdlGetFloor() but locks the record (if supported)
 553  */
 554 void lgetfloor(struct floor *flbuf, int floor_num)
 555 {
 556         begin_critical_section(S_FLOORTAB);
 557         CtdlGetFloor(flbuf, floor_num);
 558 }
 559
 560
 561 /*
 562  * CtdlGetCachedFloor()  -  Get floor record from *cache* (loads from disk if needed)
 563  *
 564  * This is strictly a performance hack.
 565  */
 566 struct floor *CtdlGetCachedFloor(int floor_num) {
 567         static int initialized = 0;
 568         int i;
 569         int fetch_new = 0;
 570         struct floor *fl = NULL;
 571
 572         begin_critical_section(S_FLOORCACHE);
 573         if (initialized == 0) {
 574                 for (i=0; i<MAXFLOORS; ++i) {
 575                         floorcache[floor_num] = NULL;
 576                 }
 577         initialized = 1;
 578         }
 579         if (floorcache[floor_num] == NULL) {
 580                 fetch_new = 1;
 581         }
 582         end_critical_section(S_FLOORCACHE);
 583
 584         if (fetch_new) {
 585                 fl = malloc(sizeof(struct floor));
 586                 CtdlGetFloor(fl, floor_num);
 587                 begin_critical_section(S_FLOORCACHE);
 588                 if (floorcache[floor_num] != NULL) {
 589                         free(floorcache[floor_num]);
 590                 }
 591                 floorcache[floor_num] = fl;
 592                 end_critical_section(S_FLOORCACHE);
 593         }
 594
 595         return(floorcache[floor_num]);
 596 }
 597
 598
 599 /*
 600  * CtdlPutFloor()  -  store floor data on disk
 601  */
 602 void CtdlPutFloor(struct floor *flbuf, int floor_num)
 603 {
 604         /* If we've cached this, clear it out, 'cuz it's WRONG now! */
 605         begin_critical_section(S_FLOORCACHE);
 606         if (floorcache[floor_num] != NULL) {
 607                 free(floorcache[floor_num]);
 608                 floorcache[floor_num] = malloc(sizeof(struct floor));
 609                 memcpy(floorcache[floor_num], flbuf, sizeof(struct floor));
 610         }
 611         end_critical_section(S_FLOORCACHE);
 612
 613         cdb_store(CDB_FLOORTAB, &floor_num, sizeof(int),
 614                   flbuf, sizeof(struct floor));
 615 }
 616
 617
 618 /*
 619  * CtdlPutFloorLock()  -  same as CtdlPutFloor() but unlocks the record (if supported)
 620  */
 621 void CtdlPutFloorLock(struct floor *flbuf, int floor_num)
 622 {
 623         CtdlPutFloor(flbuf, floor_num);
 624         end_critical_section(S_FLOORTAB);
 625
 626 }
 627
 628
 629 /*
 630  * lputfloor()  -  same as CtdlPutFloor() but unlocks the record (if supported)
 631  */
 632 void lputfloor(struct floor *flbuf, int floor_num)
 633 {
 634         CtdlPutFloorLock(flbuf, floor_num);
 635 }
 636
 637
 638 /*
 639  * Iterate through the room table, performing a callback for each room.
 640  */
 641 void CtdlForEachRoom(ForEachRoomCallBack CB, void *in_data)
 642 {
 643         struct ctdlroom qrbuf;
 644         struct cdbdata *cdbqr;
 645
 646         cdb_rewind(CDB_ROOMS);
 647
 648         while (cdbqr = cdb_next_item(CDB_ROOMS), cdbqr != NULL) {
 649                 memset(&qrbuf, 0, sizeof(struct ctdlroom));
 650                 memcpy(&qrbuf, cdbqr->ptr,
 651                        ((cdbqr->len > sizeof(struct ctdlroom)) ?
 652                         sizeof(struct ctdlroom) : cdbqr->len)
 653                 );
 654                 cdb_free(cdbqr);
 655                 room_sanity_check(&qrbuf);
 656                 if (qrbuf.QRflags & QR_INUSE) {
 657                         CB(&qrbuf, in_data);
 658                 }
 659         }
 660 }
 661
 662 /*
 663  * Iterate through the room table, performing a callback for each room that has a netconfig entry.
 664  */
 665 void CtdlForEachNetCfgRoom(ForEachRoomNetCfgCallBack CB, void *in_data)
 666 {
 667         struct ctdlroom qrbuf;
 668         struct cdbdata *cdbqr;
 669
 670         cdb_rewind(CDB_ROOMS);
 671
 672         while (cdbqr = cdb_next_item(CDB_ROOMS), cdbqr != NULL) {
 673                 memset(&qrbuf, 0, sizeof(struct ctdlroom));
 674                 memcpy(&qrbuf, cdbqr->ptr, ((cdbqr->len > sizeof(struct ctdlroom)) ?  sizeof(struct ctdlroom) : cdbqr->len));
 675                 cdb_free(cdbqr);
 676                 room_sanity_check(&qrbuf);
 677                 if (qrbuf.QRflags & QR_INUSE)
 678                 {
 679                         OneRoomNetCfg *RNCfg;
 680                         RNCfg = CtdlGetNetCfgForRoom(qrbuf.QRnumber);
 681                         if (RNCfg != NULL)
 682                         {
 683                                 CB(&qrbuf, in_data, RNCfg);
 684                                 FreeRoomNetworkStruct(&RNCfg);
 685                         }
 686                 }
 687         }
 688 }
 689
 690
 691 /*
 692  * delete_msglist()  -  delete room message pointers
 693  */
 694 void delete_msglist(struct ctdlroom *whichroom)
 695 {
 696         struct cdbdata *cdbml;
 697
 698         /* Make sure the msglist we're deleting actually exists, otherwise
 699          * libdb will complain when we try to delete an invalid record
 700          */
 701         cdbml = cdb_fetch(CDB_MSGLISTS, &whichroom->QRnumber, sizeof(long));
 702         if (cdbml != NULL) {
 703                 cdb_free(cdbml);
 704
 705                 /* Go ahead and delete it */
 706                 cdb_delete(CDB_MSGLISTS, &whichroom->QRnumber, sizeof(long));
 707         }
 708 }
 709
 710
 711 /*
 712  * Message pointer compare function for sort_msglist()
 713  */
 714 int sort_msglist_cmp(const void *m1, const void *m2) {
 715         if ((*(const long *)m1) > (*(const long *)m2)) return(1);
 716         if ((*(const long *)m1) < (*(const long *)m2)) return(-1);
 717         return(0);
 718 }
 719
 720
 721 /*
 722  * sort message pointers
 723  * (returns new msg count)
 724  */
 725 int sort_msglist(long listptrs[], int oldcount)
 726 {
 727         int numitems;
 728         int i = 0;
 729
 730         numitems = oldcount;
 731         if (numitems < 2) {
 732                 return (oldcount);
 733         }
 734
 735         /* do the sort */
 736         qsort(listptrs, numitems, sizeof(long), sort_msglist_cmp);
 737
 738         /* and yank any nulls */
 739         while ((i < numitems) && (listptrs[i] == 0L)) i++;
 740
 741         if (i > 0)
 742         {
 743                 memmove(&listptrs[0], &listptrs[i], (sizeof(long) * (numitems - i)));
 744                 numitems-=i;
 745         }
 746
 747         return (numitems);
 748 }
 749
 750
 751 /*
 752  * Determine whether a given room is non-editable.
 753  */
 754 int CtdlIsNonEditable(struct ctdlroom *qrbuf)
 755 {
 756
 757         /* Mail> rooms are non-editable */
 758         if ( (qrbuf->QRflags & QR_MAILBOX)
 759              && (!strcasecmp(&qrbuf->QRname[11], MAILROOM)) )
 760                 return (1);
 761
 762         /* Everything else is editable */
 763         return (0);
 764 }
 765
 766
 767
 768 /*
 769  * Make the specified room the current room for this session.  No validation
 770  * or access control is done here -- the caller should make sure that the
 771  * specified room exists and is ok to access.
 772  */
 773 void CtdlUserGoto(char *where, int display_result, int transiently,
 774                 int *retmsgs, int *retnew, long *retoldest, long *retnewest)
 775 {
 776         struct CitContext *CCC = CC;
 777         int a;
 778         int new_messages = 0;
 779         int old_messages = 0;
 780         int total_messages = 0;
 781         long oldest_message = 0;
 782         long newest_message = 0;
 783         int info = 0;
 784         int rmailflag;
 785         int raideflag;
 786         int newmailcount = 0;
 787         visit vbuf;
 788         char truncated_roomname[ROOMNAMELEN];
 789         struct cdbdata *cdbfr;
 790         long *msglist = NULL;
 791         int num_msgs = 0;
 792         unsigned int original_v_flags;
 793         int num_sets;
 794         int s;
 795         char setstr[128], lostr[64], histr[64];
 796         long lo, hi;
 797         int is_trash = 0;
 798
 799         /* If the supplied room name is NULL, the caller wants us to know that
 800          * it has already copied the room record into CC->room, so
 801          * we can skip the extra database fetch.
 802          */
 803         if (where != NULL) {
 804                 safestrncpy(CCC->room.QRname, where, sizeof CCC->room.QRname);
 805                 CtdlGetRoom(&CCC->room, where);
 806         }
 807
 808         /* Take care of all the formalities. */
 809
 810         begin_critical_section(S_USERS);
 811         CtdlGetRelationship(&vbuf, &CCC->user, &CCC->room);
 812         original_v_flags = vbuf.v_flags;
 813
 814         /* Know the room ... but not if it's the page log room, or if the
 815          * caller specified that we're only entering this room transiently.
 816          */
 817         int add_room_to_known_list = 1;
 818         if (transiently == 1) {
 819                 add_room_to_known_list = 0;
 820         }
 821         char *c_logpages = CtdlGetConfigStr("c_logpages");
 822         if ( (c_logpages != NULL) && (!strcasecmp(CCC->room.QRname, c_logpages)) ) {
 823                 add_room_to_known_list = 0;
 824         }
 825         if (add_room_to_known_list) {
 826                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
 827                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
 828         }
 829
 830         /* Only rewrite the database record if we changed something */
 831         if (vbuf.v_flags != original_v_flags) {
 832                 CtdlSetRelationship(&vbuf, &CCC->user, &CCC->room);
 833         }
 834         end_critical_section(S_USERS);
 835
 836         /* Check for new mail */
 837         newmailcount = NewMailCount();
 838
 839         /* Set info to 1 if the room banner is new since our last visit.
 840          * Some clients only want to display it when it changes.
 841          */
 842         if (CCC->room.msgnum_info > vbuf.v_lastseen) {
 843                 info = 1;
 844         }
 845
 846         cdbfr = cdb_fetch(CDB_MSGLISTS, &CCC->room.QRnumber, sizeof(long));
 847         if (cdbfr != NULL) {
 848                 msglist = (long *) cdbfr->ptr;
 849                 cdbfr->ptr = NULL;      /* CtdlUserGoto() now owns this memory */
 850                 num_msgs = cdbfr->len / sizeof(long);
 851                 cdb_free(cdbfr);
 852         }
 853
 854         total_messages = 0;
 855         for (a=0; a<num_msgs; ++a) {
 856                 if (msglist[a] > 0L) ++total_messages;
 857         }
 858
 859         if (total_messages > 0) {
 860                 oldest_message = msglist[0];
 861                 newest_message = msglist[num_msgs - 1];
 862         }
 863
 864         num_sets = num_tokens(vbuf.v_seen, ',');
 865         for (s=0; s<num_sets; ++s) {
 866                 extract_token(setstr, vbuf.v_seen, s, ',', sizeof setstr);
 867
 868                 extract_token(lostr, setstr, 0, ':', sizeof lostr);
 869                 if (num_tokens(setstr, ':') >= 2) {
 870                         extract_token(histr, setstr, 1, ':', sizeof histr);
 871                         if (!strcmp(histr, "*")) {
 872                                 snprintf(histr, sizeof histr, "%ld", LONG_MAX);
 873                         }
 874                 }
 875                 else {
 876                         strcpy(histr, lostr);
 877                 }
 878                 lo = atol(lostr);
 879                 hi = atol(histr);
 880
 881                 for (a=0; a<num_msgs; ++a) if (msglist[a] > 0L) {
 882                         if ((msglist[a] >= lo) && (msglist[a] <= hi)) {
 883                                 ++old_messages;
 884                                 msglist[a] = 0L;
 885                         }
 886                 }
 887         }
 888         new_messages = total_messages - old_messages;
 889
 890         if (msglist != NULL) free(msglist);
 891
 892         if (CCC->room.QRflags & QR_MAILBOX)
 893                 rmailflag = 1;
 894         else
 895                 rmailflag = 0;
 896
 897         if ((CCC->room.QRroomaide == CCC->user.usernum)
 898             || (CCC->user.axlevel >= AxAideU))
 899                 raideflag = 1;
 900         else
 901                 raideflag = 0;
 902
 903         safestrncpy(truncated_roomname, CCC->room.QRname, sizeof truncated_roomname);
 904         if ( (CCC->room.QRflags & QR_MAILBOX)
 905            && (atol(CCC->room.QRname) == CCC->user.usernum) ) {
 906                 safestrncpy(truncated_roomname, &truncated_roomname[11], sizeof truncated_roomname);
 907         }
 908
 909         if (!strcasecmp(truncated_roomname, USERTRASHROOM)) {
 910                 is_trash = 1;
 911         }
 912
 913         if (retmsgs != NULL) *retmsgs = total_messages;
 914         if (retnew != NULL) *retnew = new_messages;
 915         if (retoldest != NULL) *retoldest = oldest_message;
 916         if (retnewest != NULL) *retnewest = newest_message;
 917         syslog(LOG_DEBUG, "room_ops: %s : %d new of %d total messages, oldest=%ld, newest=%ld",
 918                    CCC->room.QRname, new_messages, total_messages, oldest_message, newest_message
 919         );
 920
 921         CCC->curr_view = (int)vbuf.v_view;
 922
 923         if (display_result) {
 924                 cprintf("%d%c%s|%d|%d|%d|%d|%ld|%ld|%d|%d|%d|%d|%d|%d|%d|%d|%ld|\n",
 925                         CIT_OK, CtdlCheckExpress(),
 926                         truncated_roomname,
 927                         (int)new_messages,
 928                         (int)total_messages,
 929                         (int)info,
 930                         (int)CCC->room.QRflags,
 931                         (long)CCC->room.QRhighest,
 932                         (long)vbuf.v_lastseen,
 933                         (int)rmailflag,
 934                         (int)raideflag,
 935                         (int)newmailcount,
 936                         (int)CCC->room.QRfloor,
 937                         (int)vbuf.v_view,
 938                         (int)CCC->room.QRdefaultview,
 939                         (int)is_trash,
 940                         (int)CCC->room.QRflags2,
 941                         (long)CCC->room.QRmtime
 942                 );
 943         }
 944 }
 945
 946
 947 /*
 948  * Handle some of the macro named rooms
 949  */
 950 void convert_room_name_macros(char *towhere, size_t maxlen) {
 951         if (!strcasecmp(towhere, "_BASEROOM_")) {
 952                 safestrncpy(towhere, CtdlGetConfigStr("c_baseroom"), maxlen);
 953         }
 954         else if (!strcasecmp(towhere, "_MAIL_")) {
 955                 safestrncpy(towhere, MAILROOM, maxlen);
 956         }
 957         else if (!strcasecmp(towhere, "_TRASH_")) {
 958                 safestrncpy(towhere, USERTRASHROOM, maxlen);
 959         }
 960         else if (!strcasecmp(towhere, "_DRAFTS_")) {
 961                 safestrncpy(towhere, USERDRAFTROOM, maxlen);
 962         }
 963         else if (!strcasecmp(towhere, "_BITBUCKET_")) {
 964                 safestrncpy(towhere, CtdlGetConfigStr("c_twitroom"), maxlen);
 965         }
 966         else if (!strcasecmp(towhere, "_CALENDAR_")) {
 967                 safestrncpy(towhere, USERCALENDARROOM, maxlen);
 968         }
 969         else if (!strcasecmp(towhere, "_TASKS_")) {
 970                 safestrncpy(towhere, USERTASKSROOM, maxlen);
 971         }
 972         else if (!strcasecmp(towhere, "_CONTACTS_")) {
 973                 safestrncpy(towhere, USERCONTACTSROOM, maxlen);
 974         }
 975         else if (!strcasecmp(towhere, "_NOTES_")) {
 976                 safestrncpy(towhere, USERNOTESROOM, maxlen);
 977         }
 978 }
 979
 980
 981 /*
 982  * Back end function to rename a room.
 983  * You can also specify which floor to move the room to, or specify -1 to
 984  * keep the room on the same floor it was on.
 985  *
 986  * If you are renaming a mailbox room, you must supply the namespace prefix
 987  * in *at least* the old name!
 988  */
 989 int CtdlRenameRoom(char *old_name, char *new_name, int new_floor) {
 990         struct CitContext *CCC = CC;
 991         int old_floor = 0;
 992         struct ctdlroom qrbuf;
 993         struct ctdlroom qrtmp;
 994         int ret = 0;
 995         struct floor *fl;
 996         struct floor flbuf;
 997         long owner = 0L;
 998         char actual_old_name[ROOMNAMELEN];
 999
1000         syslog(LOG_DEBUG, "room_ops: CtdlRenameRoom(%s, %s, %d)", old_name, new_name, new_floor);
1001
1002         if (new_floor >= 0) {
1003                 fl = CtdlGetCachedFloor(new_floor);
1004                 if ((fl->f_flags & F_INUSE) == 0) {
1005                         return(crr_invalid_floor);
1006                 }
1007         }
1008
1009         begin_critical_section(S_ROOMS);
1010
1011         if ( (CtdlGetRoom(&qrtmp, new_name) == 0)
1012            && (strcasecmp(new_name, old_name)) ) {
1013                 ret = crr_already_exists;
1014         }
1015
1016         else if (CtdlGetRoom(&qrbuf, old_name) != 0) {
1017                 ret = crr_room_not_found;
1018         }
1019
1020         else if ( (CCC->user.axlevel < AxAideU) && (!CCC->internal_pgm)
1021                   && (CCC->user.usernum != qrbuf.QRroomaide)
1022                   && ( (((qrbuf.QRflags & QR_MAILBOX) == 0) || (atol(qrbuf.QRname) != CCC->user.usernum))) )  {
1023                 ret = crr_access_denied;
1024         }
1025
1026         else if (CtdlIsNonEditable(&qrbuf)) {
1027                 ret = crr_noneditable;
1028         }
1029
1030         else {
1031                 /* Rename it */
1032                 safestrncpy(actual_old_name, qrbuf.QRname, sizeof actual_old_name);
1033                 if (qrbuf.QRflags & QR_MAILBOX) {
1034                         owner = atol(qrbuf.QRname);
1035                 }
1036                 if ( (owner > 0L) && (atol(new_name) == 0L) ) {
1037                         snprintf(qrbuf.QRname, sizeof(qrbuf.QRname),
1038                                         "%010ld.%s", owner, new_name);
1039                 }
1040                 else {
1041                         safestrncpy(qrbuf.QRname, new_name,
1042                                                 sizeof(qrbuf.QRname));
1043                 }
1044
1045                 /* Reject change of floor for baseroom/aideroom */
1046                 if (!strncasecmp(old_name, CtdlGetConfigStr("c_baseroom"), ROOMNAMELEN) ||
1047                     !strncasecmp(old_name, CtdlGetConfigStr("c_aideroom"), ROOMNAMELEN))
1048                 {
1049                         new_floor = 0;
1050                 }
1051
1052                 /* Take care of floor stuff */
1053                 old_floor = qrbuf.QRfloor;
1054                 if (new_floor < 0) {
1055                         new_floor = old_floor;
1056                 }
1057                 qrbuf.QRfloor = new_floor;
1058                 CtdlPutRoom(&qrbuf);
1059
1060                 begin_critical_section(S_CONFIG);
1061
1062                 /* If baseroom/aideroom name changes, update config */
1063                 if (!strncasecmp(old_name, CtdlGetConfigStr("c_baseroom"), ROOMNAMELEN)) {
1064                         CtdlSetConfigStr("c_baseroom", new_name);
1065                 }
1066                 if (!strncasecmp(old_name, CtdlGetConfigStr("c_aideroom"), ROOMNAMELEN)) {
1067                         CtdlSetConfigStr("c_aideroom", new_name);
1068                 }
1069
1070                 end_critical_section(S_CONFIG);
1071
1072                 /* If the room name changed, then there are now two room
1073                  * records, so we have to delete the old one.
1074                  */
1075                 if (strcasecmp(new_name, old_name)) {
1076                         b_deleteroom(actual_old_name);
1077                 }
1078
1079                 ret = crr_ok;
1080         }
1081
1082         end_critical_section(S_ROOMS);
1083
1084         /* Adjust the floor reference counts if necessary */
1085         if (new_floor != old_floor) {
1086                 lgetfloor(&flbuf, old_floor);
1087                 --flbuf.f_ref_count;
1088                 lputfloor(&flbuf, old_floor);
1089                 syslog(LOG_DEBUG, "room_ops: reference count for floor %d is now %d", old_floor, flbuf.f_ref_count);
1090                 lgetfloor(&flbuf, new_floor);
1091                 ++flbuf.f_ref_count;
1092                 lputfloor(&flbuf, new_floor);
1093                 syslog(LOG_DEBUG, "room_ops: reference count for floor %d is now %d", new_floor, flbuf.f_ref_count);
1094         }
1095
1096         /* ...and everybody say "YATTA!" */
1097         return(ret);
1098 }
1099
1100
1101 /*
1102  * Asynchronously schedule a room for deletion.  By placing the room into an invalid private namespace,
1103  * the room will appear deleted to the user(s), but the session doesn't need to block while waiting for
1104  * database operations to complete.  Instead, the room gets purged when THE DREADED AUTO-PURGER makes
1105  * its next run.  Aren't we so clever?!!
1106  */
1107 void CtdlScheduleRoomForDeletion(struct ctdlroom *qrbuf)
1108 {
1109         char old_name[ROOMNAMELEN];
1110         static int seq = 0;
1111
1112         syslog(LOG_NOTICE, "room_ops: scheduling room <%s> for deletion", qrbuf->QRname);
1113
1114         safestrncpy(old_name, qrbuf->QRname, sizeof old_name);
1115         CtdlGetRoom(qrbuf, qrbuf->QRname);
1116
1117         /* Turn the room into a private mailbox owned by a user who doesn't
1118          * exist.  This will immediately make the room invisible to everyone,
1119          * and qualify the room for purging.
1120          */
1121         snprintf(qrbuf->QRname, sizeof qrbuf->QRname, "9999999999.%08lx.%04d.%s",
1122                 time(NULL),
1123                 ++seq,
1124                 old_name
1125         );
1126         qrbuf->QRflags |= QR_MAILBOX;
1127         time(&qrbuf->QRgen);    /* Use a timestamp as the new generation number  */
1128         CtdlPutRoom(qrbuf);
1129         b_deleteroom(old_name);
1130 }
1131
1132
1133
1134 /*
1135  * Back end processing to delete a room and everything associated with it
1136  * (This one is synchronous and should only get called by THE DREADED
1137  * AUTO-PURGER in serv_expire.c.  All user-facing code should call
1138  * the asynchronous schedule_room_for_deletion() instead.)
1139  */
1140 void CtdlDeleteRoom(struct ctdlroom *qrbuf)
1141 {
1142         struct floor flbuf;
1143         char configdbkeyname[25];
1144
1145         syslog(LOG_NOTICE, "room_ops: deleting room <%s>", qrbuf->QRname);
1146
1147         /* Delete the room's network configdb entry */
1148         netcfg_keyname(configdbkeyname, qrbuf->QRnumber);
1149         CtdlDelConfig(configdbkeyname);
1150
1151         /* Delete the messages in the room
1152          * (Careful: this opens an S_ROOMS critical section!)
1153          */
1154         CtdlDeleteMessages(qrbuf->QRname, NULL, 0, "");
1155
1156         /* Flag the room record as not in use */
1157         CtdlGetRoomLock(qrbuf, qrbuf->QRname);
1158         qrbuf->QRflags = 0;
1159         CtdlPutRoomLock(qrbuf);
1160
1161         /* then decrement the reference count for the floor */
1162         lgetfloor(&flbuf, (int) (qrbuf->QRfloor));
1163         flbuf.f_ref_count = flbuf.f_ref_count - 1;
1164         lputfloor(&flbuf, (int) (qrbuf->QRfloor));
1165
1166         /* Delete the room record from the database! */
1167         b_deleteroom(qrbuf->QRname);
1168 }
1169
1170
1171 /*
1172  * Check access control for deleting a room
1173  */
1174 int CtdlDoIHavePermissionToDeleteThisRoom(struct ctdlroom *qr) {
1175
1176         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1177                 return(0);
1178         }
1179
1180         if (CtdlIsNonEditable(qr)) {
1181                 return(0);
1182         }
1183
1184         /*
1185          * For mailboxes, check stuff
1186          */
1187         if (qr->QRflags & QR_MAILBOX) {
1188
1189                 if (strlen(qr->QRname) < 12) return(0); /* bad name */
1190
1191                 if (atol(qr->QRname) != CC->user.usernum) {
1192                         return(0);      /* not my room */
1193                 }
1194
1195                 /* Can't delete your Mail> room */
1196                 if (!strcasecmp(&qr->QRname[11], MAILROOM)) return(0);
1197
1198                 /* Otherwise it's ok */
1199                 return(1);
1200         }
1201
1202         /*
1203          * For normal rooms, just check for admin or room admin status.
1204          */
1205         return(is_room_aide());
1206 }
1207
1208
1209
1210 /*
1211  * Internal code to create a new room (returns room flags)
1212  *
1213  * Room types:  0=public, 1=hidden, 2=passworded, 3=invitation-only,
1214  *              4=mailbox, 5=mailbox, but caller supplies namespace
1215  */
1216 unsigned CtdlCreateRoom(char *new_room_name,
1217                      int new_room_type,
1218                      char *new_room_pass,
1219                      int new_room_floor,
1220                      int really_create,
1221                      int avoid_access,
1222                      int new_room_view)
1223 {
1224
1225         struct ctdlroom qrbuf;
1226         struct floor flbuf;
1227         visit vbuf;
1228
1229         syslog(LOG_DEBUG, "room_ops: CtdlCreateRoom(name=%s, type=%d, view=%d)", new_room_name, new_room_type, new_room_view);
1230
1231         if (CtdlGetRoom(&qrbuf, new_room_name) == 0) {
1232                 syslog(LOG_DEBUG, "room_ops: cannot create room <%s> - already exists", new_room_name);
1233                 return(0);
1234         }
1235
1236         memset(&qrbuf, 0, sizeof(struct ctdlroom));
1237         safestrncpy(qrbuf.QRpasswd, new_room_pass, sizeof qrbuf.QRpasswd);
1238         qrbuf.QRflags = QR_INUSE;
1239         if (new_room_type > 0)
1240                 qrbuf.QRflags = (qrbuf.QRflags | QR_PRIVATE);
1241         if (new_room_type == 1)
1242                 qrbuf.QRflags = (qrbuf.QRflags | QR_GUESSNAME);
1243         if (new_room_type == 2)
1244                 qrbuf.QRflags = (qrbuf.QRflags | QR_PASSWORDED);
1245         if ( (new_room_type == 4) || (new_room_type == 5) ) {
1246                 qrbuf.QRflags = (qrbuf.QRflags | QR_MAILBOX);
1247                 /* qrbuf.QRflags2 |= QR2_SUBJECTREQ; */
1248         }
1249
1250         /* If the user is requesting a personal room, set up the room
1251          * name accordingly (prepend the user number)
1252          */
1253         if (new_room_type == 4) {
1254                 CtdlMailboxName(qrbuf.QRname, sizeof qrbuf.QRname, &CC->user, new_room_name);
1255         }
1256         else {
1257                 safestrncpy(qrbuf.QRname, new_room_name, sizeof qrbuf.QRname);
1258         }
1259
1260         /* If the room is private, and the system administrator has elected
1261          * to automatically grant room admin privileges, do so now.
1262          */
1263         if ((qrbuf.QRflags & QR_PRIVATE) && (CREATAIDE == 1)) {
1264                 qrbuf.QRroomaide = CC->user.usernum;
1265         }
1266         /* Blog owners automatically become room admins of their blogs.
1267          * (In the future we will offer a site-wide configuration setting to suppress this behavior.)
1268          */
1269         else if (new_room_view == VIEW_BLOG) {
1270                 qrbuf.QRroomaide = CC->user.usernum;
1271         }
1272         /* Otherwise, set the room admin to undefined.
1273          */
1274         else {
1275                 qrbuf.QRroomaide = (-1L);
1276         }
1277
1278         /*
1279          * If the caller is only interested in testing whether this will work,
1280          * return now without creating the room.
1281          */
1282         if (!really_create) return (qrbuf.QRflags);
1283
1284         qrbuf.QRnumber = get_new_room_number();
1285         qrbuf.QRhighest = 0L;   /* No messages in this room yet */
1286         time(&qrbuf.QRgen);     /* Use a timestamp as the generation number */
1287         qrbuf.QRfloor = new_room_floor;
1288         qrbuf.QRdefaultview = new_room_view;
1289
1290         /* save what we just did... */
1291         CtdlPutRoom(&qrbuf);
1292
1293         /* bump the reference count on whatever floor the room is on */
1294         lgetfloor(&flbuf, (int) qrbuf.QRfloor);
1295         flbuf.f_ref_count = flbuf.f_ref_count + 1;
1296         lputfloor(&flbuf, (int) qrbuf.QRfloor);
1297
1298         /* Grant the creator access to the room unless the avoid_access
1299          * parameter was specified.
1300          */
1301         if ( (CC->logged_in) && (avoid_access == 0) ) {
1302                 CtdlGetRelationship(&vbuf, &CC->user, &qrbuf);
1303                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
1304                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
1305                 CtdlSetRelationship(&vbuf, &CC->user, &qrbuf);
1306         }
1307
1308         /* resume our happy day */
1309         return (qrbuf.QRflags);
1310 }