citadel/room_ops.c

   1 /*
   2  * Server functions which perform operations on room objects.
   3  *
   4  * Copyright (c) 1987-2012 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
  20 #include "ctdl_module.h"
  21 #include "config.h"
  22 #include "control.h"
  23 #include "user_ops.h"
  24 #include "room_ops.h"
  25
  26 struct floor *floorcache[MAXFLOORS];
  27
  28 /*
  29  * Determine whether the currently logged in session has permission to read
  30  * messages in the current room.
  31  */
  32 int CtdlDoIHavePermissionToReadMessagesInThisRoom(void) {
  33         if (    (!(CC->logged_in))
  34                 && (!(CC->internal_pgm))
  35                 && (!config.c_guest_logins)
  36         ) {
  37                 return(om_not_logged_in);
  38         }
  39         return(om_ok);
  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)
  83             && ((CC->room.QRflags & QR_MAILBOX) == 0)) {
  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  * Check whether the current user has permission to delete messages from
 118  * the current room (returns 1 for yes, 0 for no)
 119  */
 120 int CtdlDoIHavePermissionToDeleteMessagesFromThisRoom(void) {
 121         int ra;
 122         CtdlRoomAccess(&CC->room, &CC->user, &ra, NULL);
 123         if (ra & UA_DELETEALLOWED) return(1);
 124         return(0);
 125 }
 126
 127 /*
 128  * Retrieve access control information for any user/room pair
 129  */
 130 void CtdlRoomAccess(struct ctdlroom *roombuf, struct ctdluser *userbuf,
 131                 int *result, int *view)
 132 {
 133         int retval = 0;
 134         visit vbuf;
 135         int is_me = 0;
 136         int is_guest = 0;
 137
 138         if (userbuf == &CC->user) {
 139                 is_me = 1;
 140         }
 141
 142         if ((is_me) && (config.c_guest_logins) && (!CC->logged_in)) {
 143                 is_guest = 1;
 144         }
 145
 146         /* for internal programs, always do everything */
 147         if (((CC->internal_pgm)) && (roombuf->QRflags & QR_INUSE)) {
 148                 retval = (UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED);
 149                 vbuf.v_view = 0;
 150                 goto SKIP_EVERYTHING;
 151         }
 152
 153         /* If guest mode is enabled, always grant access to the Lobby */
 154         if ((is_guest) && (!strcasecmp(roombuf->QRname, BASEROOM))) {
 155                 retval = (UA_KNOWN | UA_GOTOALLOWED);
 156                 vbuf.v_view = 0;
 157                 goto SKIP_EVERYTHING;
 158         }
 159
 160         /* Locate any applicable user/room relationships */
 161         if (is_guest) {
 162                 memset(&vbuf, 0, sizeof vbuf);
 163         }
 164         else {
 165                 CtdlGetRelationship(&vbuf, userbuf, roombuf);
 166         }
 167
 168         /* Force the properties of the Aide room */
 169         if (!strcasecmp(roombuf->QRname, config.c_aideroom)) {
 170                 if (userbuf->axlevel >= AxAideU) {
 171                         retval = UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED;
 172                 } else {
 173                         retval = 0;
 174                 }
 175                 goto NEWMSG;
 176         }
 177
 178         /* If this is a public room, it's accessible... */
 179         if (    ((roombuf->QRflags & QR_PRIVATE) == 0)
 180                 && ((roombuf->QRflags & QR_MAILBOX) == 0)
 181         ) {
 182                 retval = retval | UA_KNOWN | UA_GOTOALLOWED;
 183         }
 184
 185         /* If this is a preferred users only room, check access level */
 186         if (roombuf->QRflags & QR_PREFONLY) {
 187                 if (userbuf->axlevel < AxPrefU) {
 188                         retval = retval & ~UA_KNOWN & ~UA_GOTOALLOWED;
 189                 }
 190         }
 191
 192         /* For private rooms, check the generation number matchups */
 193         if (    (roombuf->QRflags & QR_PRIVATE)
 194                 && ((roombuf->QRflags & QR_MAILBOX) == 0)
 195         ) {
 196
 197                 /* An explicit match means the user belongs in this room */
 198                 if (vbuf.v_flags & V_ACCESS) {
 199                         retval = retval | UA_KNOWN | UA_GOTOALLOWED;
 200                 }
 201                 /* Otherwise, check if this is a guess-name or passworded
 202                  * room.  If it is, a goto may at least be attempted
 203                  */
 204                 else if (       (roombuf->QRflags & QR_PRIVATE)
 205                                 || (roombuf->QRflags & QR_PASSWORDED)
 206                 ) {
 207                         retval = retval & ~UA_KNOWN;
 208                         retval = retval | UA_GOTOALLOWED;
 209                 }
 210         }
 211
 212         /* For mailbox rooms, also check the namespace */
 213         /* Also, mailbox owners can delete their messages */
 214         if ( (roombuf->QRflags & QR_MAILBOX) && (atol(roombuf->QRname) != 0)) {
 215                 if (userbuf->usernum == atol(roombuf->QRname)) {
 216                         retval = retval | UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED;
 217                 }
 218                 /* An explicit match means the user belongs in this room */
 219                 if (vbuf.v_flags & V_ACCESS) {
 220                         retval = retval | UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_DELETEALLOWED | UA_REPLYALLOWED;
 221                 }
 222         }
 223
 224         /* For non-mailbox rooms... */
 225         else {
 226
 227                 /* User is allowed to post in the room unless:
 228                  * - User is not validated
 229                  * - User has no net privileges and it is a shared network room
 230                  * - It is a read-only room
 231                  * - It is a blog room (in which case we only allow replies to existing messages)
 232                  */
 233                 int post_allowed = 1;
 234                 int reply_allowed = 1;
 235                 if (userbuf->axlevel < AxProbU) {
 236                         post_allowed = 0;
 237                         reply_allowed = 0;
 238                 }
 239                 if ((userbuf->axlevel < AxNetU) && (roombuf->QRflags & QR_NETWORK)) {
 240                         post_allowed = 0;
 241                         reply_allowed = 0;
 242                 }
 243                 if (roombuf->QRflags & QR_READONLY) {
 244                         post_allowed = 0;
 245                         reply_allowed = 0;
 246                 }
 247                 if (roombuf->QRdefaultview == VIEW_BLOG) {
 248                         post_allowed = 0;
 249                 }
 250                 if (post_allowed) {
 251                         retval = retval | UA_POSTALLOWED | UA_REPLYALLOWED;
 252                 }
 253                 if (reply_allowed) {
 254                         retval = retval | UA_REPLYALLOWED;
 255                 }
 256
 257                 /* If "collaborative deletion" is active for this room, any user who can post
 258                  * is also allowed to delete
 259                  */
 260                 if (roombuf->QRflags2 & QR2_COLLABDEL) {
 261                         if (retval & UA_POSTALLOWED) {
 262                                 retval = retval | UA_DELETEALLOWED;
 263                         }
 264                 }
 265
 266         }
 267
 268         /* Check to see if the user has forgotten this room */
 269         if (vbuf.v_flags & V_FORGET) {
 270                 retval = retval & ~UA_KNOWN;
 271                 if (    ( ((roombuf->QRflags & QR_PRIVATE) == 0)
 272                         && ((roombuf->QRflags & QR_MAILBOX) == 0)
 273                 ) || (  (roombuf->QRflags & QR_MAILBOX)
 274                         && (atol(roombuf->QRname) == CC->user.usernum))
 275                 ) {
 276                         retval = retval | UA_ZAPPED;
 277                 }
 278         }
 279
 280         /* If user is explicitly locked out of this room, deny everything */
 281         if (vbuf.v_flags & V_LOCKOUT) {
 282                 retval = retval & ~UA_KNOWN & ~UA_GOTOALLOWED & ~UA_POSTALLOWED & ~UA_REPLYALLOWED;
 283         }
 284
 285         /* Aides get access to all private rooms */
 286         if (    (userbuf->axlevel >= AxAideU)
 287                 && ((roombuf->QRflags & QR_MAILBOX) == 0)
 288         ) {
 289                 if (vbuf.v_flags & V_FORGET) {
 290                         retval = retval | UA_GOTOALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 291                 }
 292                 else {
 293                         retval = retval | UA_KNOWN | UA_GOTOALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 294                 }
 295         }
 296
 297         /* Aides can gain access to mailboxes as well, but they don't show
 298          * by default.
 299          */
 300         if (    (userbuf->axlevel >= AxAideU)
 301                 && (roombuf->QRflags & QR_MAILBOX)
 302         ) {
 303                 retval = retval | UA_GOTOALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 304         }
 305
 306         /* Aides and Room Aides have admin privileges */
 307         if (    (userbuf->axlevel >= AxAideU)
 308                 || (userbuf->usernum == roombuf->QRroomaide)
 309         ) {
 310                 retval = retval | UA_ADMINALLOWED | UA_DELETEALLOWED | UA_POSTALLOWED | UA_REPLYALLOWED;
 311         }
 312
 313 NEWMSG: /* By the way, we also check for the presence of new messages */
 314         if (is_msg_in_sequence_set(vbuf.v_seen, roombuf->QRhighest) == 0) {
 315                 retval = retval | UA_HASNEWMSGS;
 316         }
 317
 318         /* System rooms never show up in the list. */
 319         if (roombuf->QRflags2 & QR2_SYSTEM) {
 320                 retval = retval & ~UA_KNOWN;
 321         }
 322
 323 SKIP_EVERYTHING:
 324         /* Now give the caller the information it wants. */
 325         if (result != NULL) *result = retval;
 326         if (view != NULL) *view = vbuf.v_view;
 327 }
 328
 329
 330 /*
 331  * Self-checking stuff for a room record read into memory
 332  */
 333 void room_sanity_check(struct ctdlroom *qrbuf)
 334 {
 335         /* Mailbox rooms are always on the lowest floor */
 336         if (qrbuf->QRflags & QR_MAILBOX) {
 337                 qrbuf->QRfloor = 0;
 338         }
 339         /* Listing order of 0 is illegal except for base rooms */
 340         if (qrbuf->QRorder == 0)
 341                 if (!(qrbuf->QRflags & QR_MAILBOX) &&
 342                     strncasecmp(qrbuf->QRname, config.c_baseroom, ROOMNAMELEN)
 343                     &&
 344                     strncasecmp(qrbuf->QRname, config.c_aideroom, ROOMNAMELEN))
 345                         qrbuf->QRorder = 64;
 346 }
 347
 348
 349 /*
 350  * CtdlGetRoom()  -  retrieve room data from disk
 351  */
 352 int CtdlGetRoom(struct ctdlroom *qrbuf, const char *room_name)
 353 {
 354         struct cdbdata *cdbqr;
 355         char lowercase_name[ROOMNAMELEN];
 356         char personal_lowercase_name[ROOMNAMELEN];
 357         const char *sptr;
 358         char *dptr, *eptr;
 359
 360         dptr = lowercase_name;
 361         sptr = room_name;
 362         eptr = (dptr + (sizeof lowercase_name - 1));
 363         while (!IsEmptyStr(sptr) && (dptr < eptr)){
 364                 *dptr = tolower(*sptr);
 365                 sptr++; dptr++;
 366         }
 367         *dptr = '\0';
 368
 369         memset(qrbuf, 0, sizeof(struct ctdlroom));
 370
 371         /* First, try the public namespace */
 372         cdbqr = cdb_fetch(CDB_ROOMS,
 373                           lowercase_name, strlen(lowercase_name));
 374
 375         /* If that didn't work, try the user's personal namespace */
 376         if (cdbqr == NULL) {
 377                 snprintf(personal_lowercase_name,
 378                          sizeof personal_lowercase_name, "%010ld.%s",
 379                          CC->user.usernum, lowercase_name);
 380                 cdbqr = cdb_fetch(CDB_ROOMS,
 381                                   personal_lowercase_name,
 382                                   strlen(personal_lowercase_name));
 383         }
 384         if (cdbqr != NULL) {
 385                 memcpy(qrbuf, cdbqr->ptr,
 386                        ((cdbqr->len > sizeof(struct ctdlroom)) ?
 387                         sizeof(struct ctdlroom) : cdbqr->len));
 388                 cdb_free(cdbqr);
 389
 390                 room_sanity_check(qrbuf);
 391
 392                 return (0);
 393         } else {
 394                 return (1);
 395         }
 396 }
 397
 398 /*
 399  * CtdlGetRoomLock()  -  same as getroom() but locks the record (if supported)
 400  */
 401 int CtdlGetRoomLock(struct ctdlroom *qrbuf, char *room_name)
 402 {
 403         register int retval;
 404         retval = CtdlGetRoom(qrbuf, room_name);
 405         if (retval == 0) begin_critical_section(S_ROOMS);
 406         return(retval);
 407 }
 408
 409
 410 /*
 411  * b_putroom()  -  back end to putroom() and b_deleteroom()
 412  *              (if the supplied buffer is NULL, delete the room record)
 413  */
 414 void b_putroom(struct ctdlroom *qrbuf, char *room_name)
 415 {
 416         char lowercase_name[ROOMNAMELEN];
 417         char *aptr, *bptr;
 418         long len;
 419
 420         aptr = room_name;
 421         bptr = lowercase_name;
 422         while (!IsEmptyStr(aptr))
 423         {
 424                 *bptr = tolower(*aptr);
 425                 aptr++;
 426                 bptr++;
 427         }
 428         *bptr='\0';
 429
 430         len = bptr - lowercase_name;
 431         if (qrbuf == NULL) {
 432                 cdb_delete(CDB_ROOMS, lowercase_name, len);
 433         } else {
 434                 time(&qrbuf->QRmtime);
 435                 cdb_store(CDB_ROOMS, lowercase_name, len, qrbuf, sizeof(struct ctdlroom));
 436         }
 437 }
 438
 439
 440 /*
 441  * CtdlPutRoom()  -  store room data to disk
 442  */
 443 void CtdlPutRoom(struct ctdlroom *qrbuf) {
 444         b_putroom(qrbuf, qrbuf->QRname);
 445 }
 446
 447
 448 /*
 449  * b_deleteroom()  -  delete a room record from disk
 450  */
 451 void b_deleteroom(char *room_name) {
 452         b_putroom(NULL, room_name);
 453 }
 454
 455
 456 /*
 457  * CtdlPutRoomLock()  -  same as CtdlPutRoom() but unlocks the record (if supported)
 458  */
 459 void CtdlPutRoomLock(struct ctdlroom *qrbuf)
 460 {
 461
 462         CtdlPutRoom(qrbuf);
 463         end_critical_section(S_ROOMS);
 464
 465 }
 466
 467
 468 /*
 469  * CtdlGetFloorByName()  -  retrieve the number of the named floor
 470  * return < 0 if not found else return floor number
 471  */
 472 int CtdlGetFloorByName(const char *floor_name)
 473 {
 474         int a;
 475         struct floor *flbuf = NULL;
 476
 477         for (a = 0; a < MAXFLOORS; ++a) {
 478                 flbuf = CtdlGetCachedFloor(a);
 479
 480                 /* check to see if it already exists */
 481                 if ((!strcasecmp(flbuf->f_name, floor_name))
 482                     && (flbuf->f_flags & F_INUSE)) {
 483                         return a;
 484                 }
 485         }
 486         return -1;
 487 }
 488
 489
 490 /*
 491  * CtdlGetFloorByNameLock()  -  retrieve floor number for given floor and lock the floor list.
 492  */
 493 int CtdlGetFloorByNameLock(const char *floor_name)
 494 {
 495         begin_critical_section(S_FLOORTAB);
 496         return CtdlGetFloorByName(floor_name);
 497 }
 498
 499
 500
 501 /*
 502  * CtdlGetAvailableFloor()  -  Return number of first unused floor
 503  * return < 0 if none available
 504  */
 505 int CtdlGetAvailableFloor(void)
 506 {
 507         int a;
 508         struct floor *flbuf = NULL;
 509
 510         for (a = 0; a < MAXFLOORS; a++) {
 511                 flbuf = CtdlGetCachedFloor(a);
 512
 513                 /* check to see if it already exists */
 514                 if ((flbuf->f_flags & F_INUSE) == 0) {
 515                         return a;
 516                 }
 517         }
 518         return -1;
 519 }
 520
 521
 522 /*
 523  * CtdlGetFloor()  -  retrieve floor data from disk
 524  */
 525 void CtdlGetFloor(struct floor *flbuf, int floor_num)
 526 {
 527         struct cdbdata *cdbfl;
 528
 529         memset(flbuf, 0, sizeof(struct floor));
 530         cdbfl = cdb_fetch(CDB_FLOORTAB, &floor_num, sizeof(int));
 531         if (cdbfl != NULL) {
 532                 memcpy(flbuf, cdbfl->ptr,
 533                        ((cdbfl->len > sizeof(struct floor)) ?
 534                         sizeof(struct floor) : cdbfl->len));
 535                 cdb_free(cdbfl);
 536         } else {
 537                 if (floor_num == 0) {
 538                         safestrncpy(flbuf->f_name, "Main Floor",
 539                                 sizeof flbuf->f_name);
 540                         flbuf->f_flags = F_INUSE;
 541                         flbuf->f_ref_count = 3;
 542                 }
 543         }
 544
 545 }
 546
 547
 548 /*
 549  * lgetfloor()  -  same as CtdlGetFloor() but locks the record (if supported)
 550  */
 551 void lgetfloor(struct floor *flbuf, int floor_num)
 552 {
 553
 554         begin_critical_section(S_FLOORTAB);
 555         CtdlGetFloor(flbuf, floor_num);
 556 }
 557
 558
 559 /*
 560  * CtdlGetCachedFloor()  -  Get floor record from *cache* (loads from disk if needed)
 561  *
 562  * This is strictly a performance hack.
 563  */
 564 struct floor *CtdlGetCachedFloor(int floor_num) {
 565         static int initialized = 0;
 566         int i;
 567         int fetch_new = 0;
 568         struct floor *fl = NULL;
 569
 570         begin_critical_section(S_FLOORCACHE);
 571         if (initialized == 0) {
 572                 for (i=0; i<MAXFLOORS; ++i) {
 573                         floorcache[floor_num] = NULL;
 574                 }
 575         initialized = 1;
 576         }
 577         if (floorcache[floor_num] == NULL) {
 578                 fetch_new = 1;
 579         }
 580         end_critical_section(S_FLOORCACHE);
 581
 582         if (fetch_new) {
 583                 fl = malloc(sizeof(struct floor));
 584                 CtdlGetFloor(fl, floor_num);
 585                 begin_critical_section(S_FLOORCACHE);
 586                 if (floorcache[floor_num] != NULL) {
 587                         free(floorcache[floor_num]);
 588                 }
 589                 floorcache[floor_num] = fl;
 590                 end_critical_section(S_FLOORCACHE);
 591         }
 592
 593         return(floorcache[floor_num]);
 594 }
 595
 596
 597 /*
 598  * CtdlPutFloor()  -  store floor data on disk
 599  */
 600 void CtdlPutFloor(struct floor *flbuf, int floor_num)
 601 {
 602         /* If we've cached this, clear it out, 'cuz it's WRONG now! */
 603         begin_critical_section(S_FLOORCACHE);
 604         if (floorcache[floor_num] != NULL) {
 605                 free(floorcache[floor_num]);
 606                 floorcache[floor_num] = malloc(sizeof(struct floor));
 607                 memcpy(floorcache[floor_num], flbuf, sizeof(struct floor));
 608         }
 609         end_critical_section(S_FLOORCACHE);
 610
 611         cdb_store(CDB_FLOORTAB, &floor_num, sizeof(int),
 612                   flbuf, sizeof(struct floor));
 613 }
 614
 615
 616 /*
 617  * CtdlPutFloorLock()  -  same as CtdlPutFloor() but unlocks the record (if supported)
 618  */
 619 void CtdlPutFloorLock(struct floor *flbuf, int floor_num)
 620 {
 621
 622         CtdlPutFloor(flbuf, floor_num);
 623         end_critical_section(S_FLOORTAB);
 624
 625 }
 626
 627
 628 /*
 629  * lputfloor()  -  same as CtdlPutFloor() but unlocks the record (if supported)
 630  */
 631 void lputfloor(struct floor *flbuf, int floor_num)
 632 {
 633         CtdlPutFloorLock(flbuf, floor_num);
 634 }
 635
 636
 637 /*
 638  *  Traverse the room file...
 639  */
 640 void CtdlForEachRoom(ForEachRoomCallBack CB, void *in_data)
 641 {
 642         struct ctdlroom qrbuf;
 643         struct cdbdata *cdbqr;
 644
 645         cdb_rewind(CDB_ROOMS);
 646
 647         while (cdbqr = cdb_next_item(CDB_ROOMS), cdbqr != NULL) {
 648                 memset(&qrbuf, 0, sizeof(struct ctdlroom));
 649                 memcpy(&qrbuf, cdbqr->ptr,
 650                        ((cdbqr->len > sizeof(struct ctdlroom)) ?
 651                         sizeof(struct ctdlroom) : cdbqr->len)
 652                 );
 653                 cdb_free(cdbqr);
 654                 room_sanity_check(&qrbuf);
 655                 if (qrbuf.QRflags & QR_INUSE) {
 656                         CB(&qrbuf, in_data);
 657                 }
 658         }
 659 }
 660
 661 /*
 662  *  Traverse the room file...
 663  */
 664 void CtdlForEachNetCfgRoom(ForEachRoomNetCfgCallBack CB,
 665                            void *in_data,
 666                            RoomNetCfg filter)
 667 {
 668         struct ctdlroom qrbuf;
 669         struct cdbdata *cdbqr;
 670
 671         cdb_rewind(CDB_ROOMS);
 672
 673         while (cdbqr = cdb_next_item(CDB_ROOMS), cdbqr != NULL) {
 674                 memset(&qrbuf, 0, sizeof(struct ctdlroom));
 675                 memcpy(&qrbuf, cdbqr->ptr,
 676                        ((cdbqr->len > sizeof(struct ctdlroom)) ?
 677                         sizeof(struct ctdlroom) : cdbqr->len)
 678                 );
 679                 cdb_free(cdbqr);
 680                 room_sanity_check(&qrbuf);
 681                 if (qrbuf.QRflags & QR_INUSE)
 682                 {
 683                         OneRoomNetCfg* RNCfg;
 684                         RNCfg = CtdlGetNetCfgForRoom(qrbuf.QRnumber);
 685                         if ((RNCfg != NULL) &&
 686                             ((filter == maxRoomNetCfg) ||
 687                              (RNCfg->NetConfigs[filter] != NULL)))
 688                         {
 689                                 CB(&qrbuf, in_data, RNCfg);
 690                         }
 691                 }
 692         }
 693 }
 694
 695
 696 /*
 697  * delete_msglist()  -  delete room message pointers
 698  */
 699 void delete_msglist(struct ctdlroom *whichroom)
 700 {
 701         struct cdbdata *cdbml;
 702
 703         /* Make sure the msglist we're deleting actually exists, otherwise
 704          * libdb will complain when we try to delete an invalid record
 705          */
 706         cdbml = cdb_fetch(CDB_MSGLISTS, &whichroom->QRnumber, sizeof(long));
 707         if (cdbml != NULL) {
 708                 cdb_free(cdbml);
 709
 710                 /* Go ahead and delete it */
 711                 cdb_delete(CDB_MSGLISTS, &whichroom->QRnumber, sizeof(long));
 712         }
 713 }
 714
 715
 716 /*
 717  * Message pointer compare function for sort_msglist()
 718  */
 719 int sort_msglist_cmp(const void *m1, const void *m2) {
 720         if ((*(const long *)m1) > (*(const long *)m2)) return(1);
 721         if ((*(const long *)m1) < (*(const long *)m2)) return(-1);
 722         return(0);
 723 }
 724
 725
 726 /*
 727  * sort message pointers
 728  * (returns new msg count)
 729  */
 730 int sort_msglist(long listptrs[], int oldcount)
 731 {
 732         int numitems;
 733         int i = 0;
 734
 735         numitems = oldcount;
 736         if (numitems < 2) {
 737                 return (oldcount);
 738         }
 739
 740         /* do the sort */
 741         qsort(listptrs, numitems, sizeof(long), sort_msglist_cmp);
 742
 743         /* and yank any nulls */
 744         while ((i < numitems) && (listptrs[i] == 0L)) i++;
 745
 746         if (i > 0)
 747         {
 748                 memmove(&listptrs[0], &listptrs[i], (sizeof(long) * (numitems - i)));
 749                 numitems-=i;
 750         }
 751
 752         return (numitems);
 753 }
 754
 755
 756 /*
 757  * Determine whether a given room is non-editable.
 758  */
 759 int CtdlIsNonEditable(struct ctdlroom *qrbuf)
 760 {
 761
 762         /* Mail> rooms are non-editable */
 763         if ( (qrbuf->QRflags & QR_MAILBOX)
 764              && (!strcasecmp(&qrbuf->QRname[11], MAILROOM)) )
 765                 return (1);
 766
 767         /* Everything else is editable */
 768         return (0);
 769 }
 770
 771
 772
 773 /*
 774  * Make the specified room the current room for this session.  No validation
 775  * or access control is done here -- the caller should make sure that the
 776  * specified room exists and is ok to access.
 777  */
 778 void CtdlUserGoto(char *where, int display_result, int transiently,
 779                 int *retmsgs, int *retnew, long *retoldest, long *retnewest)
 780 {
 781         struct CitContext *CCC = CC;
 782         int a;
 783         int new_messages = 0;
 784         int old_messages = 0;
 785         int total_messages = 0;
 786         long oldest_message = 0;
 787         long newest_message = 0;
 788         int info = 0;
 789         int rmailflag;
 790         int raideflag;
 791         int newmailcount = 0;
 792         visit vbuf;
 793         char truncated_roomname[ROOMNAMELEN];
 794         struct cdbdata *cdbfr;
 795         long *msglist = NULL;
 796         int num_msgs = 0;
 797         unsigned int original_v_flags;
 798         int num_sets;
 799         int s;
 800         char setstr[128], lostr[64], histr[64];
 801         long lo, hi;
 802         int is_trash = 0;
 803
 804         /* If the supplied room name is NULL, the caller wants us to know that
 805          * it has already copied the room record into CC->room, so
 806          * we can skip the extra database fetch.
 807          */
 808         if (where != NULL) {
 809                 safestrncpy(CCC->room.QRname, where, sizeof CCC->room.QRname);
 810                 CtdlGetRoom(&CCC->room, where);
 811         }
 812
 813         /* Take care of all the formalities. */
 814
 815         begin_critical_section(S_USERS);
 816         CtdlGetRelationship(&vbuf, &CCC->user, &CCC->room);
 817         original_v_flags = vbuf.v_flags;
 818
 819         /* Know the room ... but not if it's the page log room, or if the
 820          * caller specified that we're only entering this room transiently.
 821          */
 822         if ((strcasecmp(CCC->room.QRname, config.c_logpages))
 823            && (transiently == 0) ) {
 824                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
 825                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
 826         }
 827
 828         /* Only rewrite the database record if we changed something */
 829         if (vbuf.v_flags != original_v_flags) {
 830                 CtdlSetRelationship(&vbuf, &CCC->user, &CCC->room);
 831         }
 832         end_critical_section(S_USERS);
 833
 834         /* Check for new mail */
 835         newmailcount = NewMailCount();
 836
 837         /* set info to 1 if the user needs to read the room's info file */
 838         if (CCC->room.QRinfo > vbuf.v_lastseen) {
 839                 info = 1;
 840         }
 841
 842         cdbfr = cdb_fetch(CDB_MSGLISTS, &CCC->room.QRnumber, sizeof(long));
 843         if (cdbfr != NULL) {
 844                 msglist = (long *) cdbfr->ptr;
 845                 cdbfr->ptr = NULL;      /* CtdlUserGoto() now owns this memory */
 846                 num_msgs = cdbfr->len / sizeof(long);
 847                 cdb_free(cdbfr);
 848         }
 849
 850         total_messages = 0;
 851         for (a=0; a<num_msgs; ++a) {
 852                 if (msglist[a] > 0L) ++total_messages;
 853         }
 854
 855         if (total_messages > 0) {
 856                 oldest_message = msglist[0];
 857                 newest_message = msglist[num_msgs - 1];
 858         }
 859
 860         num_sets = num_tokens(vbuf.v_seen, ',');
 861         for (s=0; s<num_sets; ++s) {
 862                 extract_token(setstr, vbuf.v_seen, s, ',', sizeof setstr);
 863
 864                 extract_token(lostr, setstr, 0, ':', sizeof lostr);
 865                 if (num_tokens(setstr, ':') >= 2) {
 866                         extract_token(histr, setstr, 1, ':', sizeof histr);
 867                         if (!strcmp(histr, "*")) {
 868                                 snprintf(histr, sizeof histr, "%ld", LONG_MAX);
 869                         }
 870                 }
 871                 else {
 872                         strcpy(histr, lostr);
 873                 }
 874                 lo = atol(lostr);
 875                 hi = atol(histr);
 876
 877                 for (a=0; a<num_msgs; ++a) if (msglist[a] > 0L) {
 878                         if ((msglist[a] >= lo) && (msglist[a] <= hi)) {
 879                                 ++old_messages;
 880                                 msglist[a] = 0L;
 881                         }
 882                 }
 883         }
 884         new_messages = total_messages - old_messages;
 885
 886         if (msglist != NULL) free(msglist);
 887
 888         if (CCC->room.QRflags & QR_MAILBOX)
 889                 rmailflag = 1;
 890         else
 891                 rmailflag = 0;
 892
 893         if ((CCC->room.QRroomaide == CCC->user.usernum)
 894             || (CCC->user.axlevel >= AxAideU))
 895                 raideflag = 1;
 896         else
 897                 raideflag = 0;
 898
 899         safestrncpy(truncated_roomname, CCC->room.QRname, sizeof truncated_roomname);
 900         if ( (CCC->room.QRflags & QR_MAILBOX)
 901            && (atol(CCC->room.QRname) == CCC->user.usernum) ) {
 902                 safestrncpy(truncated_roomname, &truncated_roomname[11], sizeof truncated_roomname);
 903         }
 904
 905         if (!strcasecmp(truncated_roomname, USERTRASHROOM)) {
 906                 is_trash = 1;
 907         }
 908
 909         if (retmsgs != NULL) *retmsgs = total_messages;
 910         if (retnew != NULL) *retnew = new_messages;
 911         if (retoldest != NULL) *retoldest = oldest_message;
 912         if (retnewest != NULL) *retnewest = newest_message;
 913         MSG_syslog(LOG_INFO, "<%s> %d new of %d total messages, oldest=%ld, newest=%ld\n",
 914                    CCC->room.QRname, new_messages, total_messages, oldest_message, newest_message
 915         );
 916
 917         CCC->curr_view = (int)vbuf.v_view;
 918
 919         if (display_result) {
 920                 cprintf("%d%c%s|%d|%d|%d|%d|%ld|%ld|%d|%d|%d|%d|%d|%d|%d|%d|%ld|\n",
 921                         CIT_OK, CtdlCheckExpress(),
 922                         truncated_roomname,
 923                         (int)new_messages,
 924                         (int)total_messages,
 925                         (int)info,
 926                         (int)CCC->room.QRflags,
 927                         (long)CCC->room.QRhighest,
 928                         (long)vbuf.v_lastseen,
 929                         (int)rmailflag,
 930                         (int)raideflag,
 931                         (int)newmailcount,
 932                         (int)CCC->room.QRfloor,
 933                         (int)vbuf.v_view,
 934                         (int)CCC->room.QRdefaultview,
 935                         (int)is_trash,
 936                         (int)CCC->room.QRflags2,
 937                         (long)CCC->room.QRmtime
 938                 );
 939         }
 940 }
 941
 942
 943 /*
 944  * Handle some of the macro named rooms
 945  */
 946 void convert_room_name_macros(char *towhere, size_t maxlen) {
 947         if (!strcasecmp(towhere, "_BASEROOM_")) {
 948                 safestrncpy(towhere, config.c_baseroom, maxlen);
 949         }
 950         else if (!strcasecmp(towhere, "_MAIL_")) {
 951                 safestrncpy(towhere, MAILROOM, maxlen);
 952         }
 953         else if (!strcasecmp(towhere, "_TRASH_")) {
 954                 safestrncpy(towhere, USERTRASHROOM, maxlen);
 955         }
 956         else if (!strcasecmp(towhere, "_DRAFTS_")) {
 957                 safestrncpy(towhere, USERDRAFTROOM, maxlen);
 958         }
 959         else if (!strcasecmp(towhere, "_BITBUCKET_")) {
 960                 safestrncpy(towhere, config.c_twitroom, maxlen);
 961         }
 962         else if (!strcasecmp(towhere, "_CALENDAR_")) {
 963                 safestrncpy(towhere, USERCALENDARROOM, maxlen);
 964         }
 965         else if (!strcasecmp(towhere, "_TASKS_")) {
 966                 safestrncpy(towhere, USERTASKSROOM, maxlen);
 967         }
 968         else if (!strcasecmp(towhere, "_CONTACTS_")) {
 969                 safestrncpy(towhere, USERCONTACTSROOM, maxlen);
 970         }
 971         else if (!strcasecmp(towhere, "_NOTES_")) {
 972                 safestrncpy(towhere, USERNOTESROOM, maxlen);
 973         }
 974 }
 975
 976
 977 /*
 978  * Back end function to rename a room.
 979  * You can also specify which floor to move the room to, or specify -1 to
 980  * keep the room on the same floor it was on.
 981  *
 982  * If you are renaming a mailbox room, you must supply the namespace prefix
 983  * in *at least* the old name!
 984  */
 985 int CtdlRenameRoom(char *old_name, char *new_name, int new_floor) {
 986         int old_floor = 0;
 987         struct ctdlroom qrbuf;
 988         struct ctdlroom qrtmp;
 989         int ret = 0;
 990         struct floor *fl;
 991         struct floor flbuf;
 992         long owner = 0L;
 993         char actual_old_name[ROOMNAMELEN];
 994
 995         syslog(LOG_DEBUG, "CtdlRenameRoom(%s, %s, %d)\n",
 996                 old_name, new_name, new_floor);
 997
 998         if (new_floor >= 0) {
 999                 fl = CtdlGetCachedFloor(new_floor);
1000                 if ((fl->f_flags & F_INUSE) == 0) {
1001                         return(crr_invalid_floor);
1002                 }
1003         }
1004
1005         begin_critical_section(S_ROOMS);
1006
1007         if ( (CtdlGetRoom(&qrtmp, new_name) == 0)
1008            && (strcasecmp(new_name, old_name)) ) {
1009                 ret = crr_already_exists;
1010         }
1011
1012         else if (CtdlGetRoom(&qrbuf, old_name) != 0) {
1013                 ret = crr_room_not_found;
1014         }
1015
1016         else if ( (CC->user.axlevel < AxAideU) && (!CC->internal_pgm)
1017                   && (CC->user.usernum != qrbuf.QRroomaide)
1018                   && ( (((qrbuf.QRflags & QR_MAILBOX) == 0) || (atol(qrbuf.QRname) != CC->user.usernum))) )  {
1019                 ret = crr_access_denied;
1020         }
1021
1022         else if (CtdlIsNonEditable(&qrbuf)) {
1023                 ret = crr_noneditable;
1024         }
1025
1026         else {
1027                 /* Rename it */
1028                 safestrncpy(actual_old_name, qrbuf.QRname, sizeof actual_old_name);
1029                 if (qrbuf.QRflags & QR_MAILBOX) {
1030                         owner = atol(qrbuf.QRname);
1031                 }
1032                 if ( (owner > 0L) && (atol(new_name) == 0L) ) {
1033                         snprintf(qrbuf.QRname, sizeof(qrbuf.QRname),
1034                                         "%010ld.%s", owner, new_name);
1035                 }
1036                 else {
1037                         safestrncpy(qrbuf.QRname, new_name,
1038                                                 sizeof(qrbuf.QRname));
1039                 }
1040
1041                 /* Reject change of floor for baseroom/aideroom */
1042                 if (!strncasecmp(old_name, config.c_baseroom, ROOMNAMELEN) ||
1043                     !strncasecmp(old_name, config.c_aideroom, ROOMNAMELEN)) {
1044                         new_floor = 0;
1045                 }
1046
1047                 /* Take care of floor stuff */
1048                 old_floor = qrbuf.QRfloor;
1049                 if (new_floor < 0) {
1050                         new_floor = old_floor;
1051                 }
1052                 qrbuf.QRfloor = new_floor;
1053                 CtdlPutRoom(&qrbuf);
1054
1055                 begin_critical_section(S_CONFIG);
1056
1057                 /* If baseroom/aideroom name changes, update config */
1058                 if (!strncasecmp(old_name, config.c_baseroom, ROOMNAMELEN)) {
1059                         safestrncpy(config.c_baseroom, new_name, ROOMNAMELEN);
1060                         put_config();
1061                 }
1062                 if (!strncasecmp(old_name, config.c_aideroom, ROOMNAMELEN)) {
1063                         safestrncpy(config.c_aideroom, new_name, ROOMNAMELEN);
1064                         put_config();
1065                 }
1066
1067                 end_critical_section(S_CONFIG);
1068
1069                 /* If the room name changed, then there are now two room
1070                  * records, so we have to delete the old one.
1071                  */
1072                 if (strcasecmp(new_name, old_name)) {
1073                         b_deleteroom(actual_old_name);
1074                 }
1075
1076                 ret = crr_ok;
1077         }
1078
1079         end_critical_section(S_ROOMS);
1080
1081         /* Adjust the floor reference counts if necessary */
1082         if (new_floor != old_floor) {
1083                 lgetfloor(&flbuf, old_floor);
1084                 --flbuf.f_ref_count;
1085                 lputfloor(&flbuf, old_floor);
1086                 syslog(LOG_DEBUG, "Reference count for floor %d is now %d\n", old_floor, flbuf.f_ref_count);
1087                 lgetfloor(&flbuf, new_floor);
1088                 ++flbuf.f_ref_count;
1089                 lputfloor(&flbuf, new_floor);
1090                 syslog(LOG_DEBUG, "Reference count for floor %d is now %d\n", new_floor, flbuf.f_ref_count);
1091         }
1092
1093         /* ...and everybody say "YATTA!" */
1094         return(ret);
1095 }
1096
1097
1098
1099 /*
1100  * Asynchronously schedule a room for deletion.  The room will appear
1101  * deleted to the user(s), but it won't actually get purged from the
1102  * database until THE DREADED AUTO-PURGER makes its next run.
1103  */
1104 void CtdlScheduleRoomForDeletion(struct ctdlroom *qrbuf)
1105 {
1106         char old_name[ROOMNAMELEN];
1107         static int seq = 0;
1108
1109         syslog(LOG_NOTICE, "Scheduling room <%s> for deletion\n",
1110                 qrbuf->QRname);
1111
1112         safestrncpy(old_name, qrbuf->QRname, sizeof old_name);
1113
1114         CtdlGetRoom(qrbuf, qrbuf->QRname);
1115
1116         /* Turn the room into a private mailbox owned by a user who doesn't
1117          * exist.  This will immediately make the room invisible to everyone,
1118          * and qualify the room for purging.
1119          */
1120         snprintf(qrbuf->QRname, sizeof qrbuf->QRname, "9999999999.%08lx.%04d.%s",
1121                 time(NULL),
1122                 ++seq,
1123                 old_name
1124         );
1125         qrbuf->QRflags |= QR_MAILBOX;
1126         time(&qrbuf->QRgen);    /* Use a timestamp as the new generation number  */
1127
1128         CtdlPutRoom(qrbuf);
1129
1130         b_deleteroom(old_name);
1131 }
1132
1133
1134
1135 /*
1136  * Back end processing to delete a room and everything associated with it
1137  * (This one is synchronous and should only get called by THE DREADED
1138  * AUTO-PURGER in serv_expire.c.  All user-facing code should call
1139  * the asynchronous schedule_room_for_deletion() instead.)
1140  */
1141 void CtdlDeleteRoom(struct ctdlroom *qrbuf)
1142 {
1143         struct floor flbuf;
1144         char filename[100];
1145         /* TODO: filename magic? does this realy work? */
1146
1147         syslog(LOG_NOTICE, "Deleting room <%s>\n", qrbuf->QRname);
1148
1149         /* Delete the info file */
1150         assoc_file_name(filename, sizeof filename, qrbuf, ctdl_info_dir);
1151         unlink(filename);
1152
1153         /* Delete the image file */
1154         assoc_file_name(filename, sizeof filename, qrbuf, ctdl_image_dir);
1155         unlink(filename);
1156
1157         /* Delete the room's network config file */
1158         assoc_file_name(filename, sizeof filename, qrbuf, ctdl_netcfg_dir);
1159         unlink(filename);
1160
1161         /* Delete the messages in the room
1162          * (Careful: this opens an S_ROOMS critical section!)
1163          */
1164         CtdlDeleteMessages(qrbuf->QRname, NULL, 0, "");
1165
1166         /* Flag the room record as not in use */
1167         CtdlGetRoomLock(qrbuf, qrbuf->QRname);
1168         qrbuf->QRflags = 0;
1169         CtdlPutRoomLock(qrbuf);
1170
1171         /* then decrement the reference count for the floor */
1172         lgetfloor(&flbuf, (int) (qrbuf->QRfloor));
1173         flbuf.f_ref_count = flbuf.f_ref_count - 1;
1174         lputfloor(&flbuf, (int) (qrbuf->QRfloor));
1175
1176         /* Delete the room record from the database! */
1177         b_deleteroom(qrbuf->QRname);
1178 }
1179
1180
1181
1182 /*
1183  * Check access control for deleting a room
1184  */
1185 int CtdlDoIHavePermissionToDeleteThisRoom(struct ctdlroom *qr) {
1186
1187         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1188                 return(0);
1189         }
1190
1191         if (CtdlIsNonEditable(qr)) {
1192                 return(0);
1193         }
1194
1195         /*
1196          * For mailboxes, check stuff
1197          */
1198         if (qr->QRflags & QR_MAILBOX) {
1199
1200                 if (strlen(qr->QRname) < 12) return(0); /* bad name */
1201
1202                 if (atol(qr->QRname) != CC->user.usernum) {
1203                         return(0);      /* not my room */
1204                 }
1205
1206                 /* Can't delete your Mail> room */
1207                 if (!strcasecmp(&qr->QRname[11], MAILROOM)) return(0);
1208
1209                 /* Otherwise it's ok */
1210                 return(1);
1211         }
1212
1213         /*
1214          * For normal rooms, just check for admin or room admin status.
1215          */
1216         return(is_room_aide());
1217 }
1218
1219
1220
1221 /*
1222  * Internal code to create a new room (returns room flags)
1223  *
1224  * Room types:  0=public, 1=hidden, 2=passworded, 3=invitation-only,
1225  *              4=mailbox, 5=mailbox, but caller supplies namespace
1226  */
1227 unsigned CtdlCreateRoom(char *new_room_name,
1228                      int new_room_type,
1229                      char *new_room_pass,
1230                      int new_room_floor,
1231                      int really_create,
1232                      int avoid_access,
1233                      int new_room_view)
1234 {
1235
1236         struct ctdlroom qrbuf;
1237         struct floor flbuf;
1238         visit vbuf;
1239
1240         syslog(LOG_DEBUG, "CtdlCreateRoom(name=%s, type=%d, view=%d)\n",
1241                 new_room_name, new_room_type, new_room_view);
1242
1243         if (CtdlGetRoom(&qrbuf, new_room_name) == 0) {
1244                 syslog(LOG_DEBUG, "%s already exists.\n", new_room_name);
1245                 return(0);
1246         }
1247
1248         memset(&qrbuf, 0, sizeof(struct ctdlroom));
1249         safestrncpy(qrbuf.QRpasswd, new_room_pass, sizeof qrbuf.QRpasswd);
1250         qrbuf.QRflags = QR_INUSE;
1251         if (new_room_type > 0)
1252                 qrbuf.QRflags = (qrbuf.QRflags | QR_PRIVATE);
1253         if (new_room_type == 1)
1254                 qrbuf.QRflags = (qrbuf.QRflags | QR_GUESSNAME);
1255         if (new_room_type == 2)
1256                 qrbuf.QRflags = (qrbuf.QRflags | QR_PASSWORDED);
1257         if ( (new_room_type == 4) || (new_room_type == 5) ) {
1258                 qrbuf.QRflags = (qrbuf.QRflags | QR_MAILBOX);
1259                 /* qrbuf.QRflags2 |= QR2_SUBJECTREQ; */
1260         }
1261
1262         /* If the user is requesting a personal room, set up the room
1263          * name accordingly (prepend the user number)
1264          */
1265         if (new_room_type == 4) {
1266                 CtdlMailboxName(qrbuf.QRname, sizeof qrbuf.QRname, &CC->user, new_room_name);
1267         }
1268         else {
1269                 safestrncpy(qrbuf.QRname, new_room_name, sizeof qrbuf.QRname);
1270         }
1271
1272         /* If the room is private, and the system administrator has elected
1273          * to automatically grant room admin privileges, do so now.
1274          */
1275         if ((qrbuf.QRflags & QR_PRIVATE) && (CREATAIDE == 1)) {
1276                 qrbuf.QRroomaide = CC->user.usernum;
1277         }
1278         /* Blog owners automatically become room admins of their blogs.
1279          * (In the future we will offer a site-wide configuration setting to suppress this behavior.)
1280          */
1281         else if (new_room_view == VIEW_BLOG) {
1282                 qrbuf.QRroomaide = CC->user.usernum;
1283         }
1284         /* Otherwise, set the room admin to undefined.
1285          */
1286         else {
1287                 qrbuf.QRroomaide = (-1L);
1288         }
1289
1290         /*
1291          * If the caller is only interested in testing whether this will work,
1292          * return now without creating the room.
1293          */
1294         if (!really_create) return (qrbuf.QRflags);
1295
1296         qrbuf.QRnumber = get_new_room_number();
1297         qrbuf.QRhighest = 0L;   /* No messages in this room yet */
1298         time(&qrbuf.QRgen);     /* Use a timestamp as the generation number */
1299         qrbuf.QRfloor = new_room_floor;
1300         qrbuf.QRdefaultview = new_room_view;
1301
1302         /* save what we just did... */
1303         CtdlPutRoom(&qrbuf);
1304
1305         /* bump the reference count on whatever floor the room is on */
1306         lgetfloor(&flbuf, (int) qrbuf.QRfloor);
1307         flbuf.f_ref_count = flbuf.f_ref_count + 1;
1308         lputfloor(&flbuf, (int) qrbuf.QRfloor);
1309
1310         /* Grant the creator access to the room unless the avoid_access
1311          * parameter was specified.
1312          */
1313         if ( (CC->logged_in) && (avoid_access == 0) ) {
1314                 CtdlGetRelationship(&vbuf, &CC->user, &qrbuf);
1315                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
1316                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
1317                 CtdlSetRelationship(&vbuf, &CC->user, &qrbuf);
1318         }
1319
1320         /* resume our happy day */
1321         return (qrbuf.QRflags);
1322 }