citadel/room_ops.c

   1 /*
   2  * $Id$
   3  *
   4  * Server functions which perform operations on room objects.
   5  *
   6  */
   7
   8 #ifdef DLL_EXPORT
   9 #define IN_LIBCIT
  10 #endif
  11
  12 #include "sysdep.h"
  13 #include <stdlib.h>
  14 #include <unistd.h>
  15 #include <stdio.h>
  16 #include <sys/stat.h>
  17 #include <ctype.h>
  18 #include <string.h>
  19
  20 #if TIME_WITH_SYS_TIME
  21 # include <sys/time.h>
  22 # include <time.h>
  23 #else
  24 # if HAVE_SYS_TIME_H
  25 #  include <sys/time.h>
  26 # else
  27 #  include <time.h>
  28 # endif
  29 #endif
  30
  31 #include <limits.h>
  32 #include <errno.h>
  33 #include "citadel.h"
  34 #include "server.h"
  35 #include "serv_extensions.h"
  36 #include "database.h"
  37 #include "config.h"
  38 #include "room_ops.h"
  39 #include "sysdep_decls.h"
  40 #include "support.h"
  41 #include "user_ops.h"
  42 #include "msgbase.h"
  43 #include "citserver.h"
  44 #include "control.h"
  45 #include "tools.h"
  46
  47 struct floor *floorcache[MAXFLOORS];
  48
  49 /*
  50  * Generic routine for determining user access to rooms
  51  */
  52 int CtdlRoomAccess(struct ctdlroom *roombuf, struct ctdluser *userbuf)
  53 {
  54         int retval = 0;
  55         struct visit vbuf;
  56
  57         /* for internal programs, always do everything */
  58         if (((CC->internal_pgm)) && (roombuf->QRflags & QR_INUSE)) {
  59                 return (UA_KNOWN | UA_GOTOALLOWED);
  60         }
  61
  62         /* Locate any applicable user/room relationships */
  63         CtdlGetRelationship(&vbuf, userbuf, roombuf);
  64
  65         /* Force the properties of the Aide room */
  66         if (!strcasecmp(roombuf->QRname, config.c_aideroom)) {
  67                 if (userbuf->axlevel >= 6) {
  68                         retval = UA_KNOWN | UA_GOTOALLOWED;
  69                 } else {
  70                         retval = 0;
  71                 }
  72                 goto NEWMSG;
  73         }
  74
  75         /* If this is a public room, it's accessible... */
  76         if ( ((roombuf->QRflags & QR_PRIVATE) == 0)
  77            && ((roombuf->QRflags & QR_MAILBOX) == 0) ) {
  78                 retval = retval | UA_KNOWN | UA_GOTOALLOWED;
  79         }
  80
  81         /* If this is a preferred users only room, check access level */
  82         if (roombuf->QRflags & QR_PREFONLY) {
  83                 if (userbuf->axlevel < 5) {
  84                         retval = retval & ~UA_KNOWN & ~UA_GOTOALLOWED;
  85                 }
  86         }
  87
  88         /* For private rooms, check the generation number matchups */
  89         if ( (roombuf->QRflags & QR_PRIVATE)
  90            && ((roombuf->QRflags & QR_MAILBOX) == 0) ) {
  91
  92                 /* An explicit match means the user belongs in this room */
  93                 if (vbuf.v_flags & V_ACCESS) {
  94                         retval = retval | UA_KNOWN | UA_GOTOALLOWED;
  95                 }
  96                 /* Otherwise, check if this is a guess-name or passworded
  97                  * room.  If it is, a goto may at least be attempted
  98                  */
  99                 else if ((roombuf->QRflags & QR_PRIVATE)
 100                          || (roombuf->QRflags & QR_PASSWORDED)) {
 101                         retval = retval & ~UA_KNOWN;
 102                         retval = retval | UA_GOTOALLOWED;
 103                 }
 104         }
 105
 106         /* For mailbox rooms, also check the generation number matchups */
 107         if (roombuf->QRflags & QR_MAILBOX) {
 108                 if (userbuf->usernum == atol(roombuf->QRname)) {
 109                         retval = retval | UA_KNOWN | UA_GOTOALLOWED;
 110                 }
 111                 /* An explicit match means the user belongs in this room */
 112                 if (vbuf.v_flags & V_ACCESS) {
 113                         retval = retval | UA_KNOWN | UA_GOTOALLOWED;
 114                 }
 115         }
 116
 117         /* Check to see if the user has forgotten this room */
 118         if (vbuf.v_flags & V_FORGET) {
 119                 retval = retval & ~UA_KNOWN;
 120                 if ( ( ((roombuf->QRflags & QR_PRIVATE) == 0)
 121                       && ((roombuf->QRflags & QR_MAILBOX) == 0) )
 122                    || ( (roombuf->QRflags & QR_MAILBOX)
 123                       && (atol(roombuf->QRname) == CC->user.usernum))) {
 124                         retval = retval | UA_ZAPPED;
 125                 }
 126         }
 127         /* If user is explicitly locked out of this room, deny everything */
 128         if (vbuf.v_flags & V_LOCKOUT) {
 129                 retval = retval & ~UA_KNOWN & ~UA_GOTOALLOWED;
 130         }
 131
 132         /* Aides get access to all private rooms */
 133         if ( (userbuf->axlevel >= 6)
 134            && ((roombuf->QRflags & QR_MAILBOX) == 0) ) {
 135                 if (vbuf.v_flags & V_FORGET) {
 136                         retval = retval | UA_GOTOALLOWED;
 137                 }
 138                 else {
 139                         retval = retval | UA_KNOWN | UA_GOTOALLOWED;
 140                 }
 141         }
 142
 143         /* On some systems, Aides can gain access to mailboxes as well */
 144         if ( (config.c_aide_mailboxes)
 145            && (userbuf->axlevel >= 6)
 146            && (roombuf->QRflags & QR_MAILBOX) ) {
 147                 retval = retval | UA_GOTOALLOWED;
 148         }
 149
 150 NEWMSG: /* By the way, we also check for the presence of new messages */
 151         if (is_msg_in_mset(vbuf.v_seen, roombuf->QRhighest) == 0) {
 152                 retval = retval | UA_HASNEWMSGS;
 153         }
 154
 155         /* System rooms never show up in the list. */
 156         if (roombuf->QRflags2 & QR2_SYSTEM) {
 157                 retval = retval & ~UA_KNOWN;
 158         }
 159         return (retval);
 160 }
 161
 162 /*
 163  * Self-checking stuff for a room record read into memory
 164  */
 165 void room_sanity_check(struct ctdlroom *qrbuf)
 166 {
 167         /* Mailbox rooms are always on the lowest floor */
 168         if (qrbuf->QRflags & QR_MAILBOX) {
 169                 qrbuf->QRfloor = 0;
 170         }
 171         /* Listing order of 0 is illegal except for base rooms */
 172         if (qrbuf->QRorder == 0)
 173                 if (!(qrbuf->QRflags & QR_MAILBOX) &&
 174                     strncasecmp(qrbuf->QRname, config.c_baseroom, ROOMNAMELEN)
 175                     &&
 176                     strncasecmp(qrbuf->QRname, config.c_aideroom, ROOMNAMELEN))
 177                         qrbuf->QRorder = 64;
 178 }
 179
 180
 181 /*
 182  * getroom()  -  retrieve room data from disk
 183  */
 184 int getroom(struct ctdlroom *qrbuf, char *room_name)
 185 {
 186         struct cdbdata *cdbqr;
 187         char lowercase_name[ROOMNAMELEN];
 188         char personal_lowercase_name[ROOMNAMELEN];
 189         int a;
 190
 191         for (a = 0; room_name[a] && a < sizeof lowercase_name - 1; ++a) {
 192                 lowercase_name[a] = tolower(room_name[a]);
 193         }
 194         lowercase_name[a] = 0;
 195
 196         memset(qrbuf, 0, sizeof(struct ctdlroom));
 197
 198         /* First, try the public namespace */
 199         cdbqr = cdb_fetch(CDB_ROOMS,
 200                           lowercase_name, strlen(lowercase_name));
 201
 202         /* If that didn't work, try the user's personal namespace */
 203         if (cdbqr == NULL) {
 204                 snprintf(personal_lowercase_name,
 205                          sizeof personal_lowercase_name, "%010ld.%s",
 206                          CC->user.usernum, lowercase_name);
 207                 cdbqr = cdb_fetch(CDB_ROOMS,
 208                                   personal_lowercase_name,
 209                                   strlen(personal_lowercase_name));
 210         }
 211         if (cdbqr != NULL) {
 212                 memcpy(qrbuf, cdbqr->ptr,
 213                        ((cdbqr->len > sizeof(struct ctdlroom)) ?
 214                         sizeof(struct ctdlroom) : cdbqr->len));
 215                 cdb_free(cdbqr);
 216
 217                 room_sanity_check(qrbuf);
 218
 219                 return (0);
 220         } else {
 221                 return (1);
 222         }
 223 }
 224
 225 /*
 226  * lgetroom()  -  same as getroom() but locks the record (if supported)
 227  */
 228 int lgetroom(struct ctdlroom *qrbuf, char *room_name)
 229 {
 230         register int retval;
 231         retval = getroom(qrbuf, room_name);
 232         if (retval == 0) begin_critical_section(S_ROOMS);
 233         return(retval);
 234 }
 235
 236
 237 /*
 238  * b_putroom()  -  back end to putroom() and b_deleteroom()
 239  *              (if the supplied buffer is NULL, delete the room record)
 240  */
 241 void b_putroom(struct ctdlroom *qrbuf, char *room_name)
 242 {
 243         char lowercase_name[ROOMNAMELEN];
 244         int a;
 245
 246         for (a = 0; a <= strlen(room_name); ++a) {
 247                 lowercase_name[a] = tolower(room_name[a]);
 248         }
 249
 250         if (qrbuf == NULL) {
 251                 cdb_delete(CDB_ROOMS,
 252                            lowercase_name, strlen(lowercase_name));
 253         } else {
 254                 time(&qrbuf->QRmtime);
 255                 cdb_store(CDB_ROOMS,
 256                           lowercase_name, strlen(lowercase_name),
 257                           qrbuf, sizeof(struct ctdlroom));
 258         }
 259 }
 260
 261
 262 /*
 263  * putroom()  -  store room data to disk
 264  */
 265 void putroom(struct ctdlroom *qrbuf) {
 266         b_putroom(qrbuf, qrbuf->QRname);
 267 }
 268
 269
 270 /*
 271  * b_deleteroom()  -  delete a room record from disk
 272  */
 273 void b_deleteroom(char *room_name) {
 274         b_putroom(NULL, room_name);
 275 }
 276
 277
 278
 279 /*
 280  * lputroom()  -  same as putroom() but unlocks the record (if supported)
 281  */
 282 void lputroom(struct ctdlroom *qrbuf)
 283 {
 284
 285         putroom(qrbuf);
 286         end_critical_section(S_ROOMS);
 287
 288 }
 289
 290 /****************************************************************************/
 291
 292 /*
 293  * getfloor()  -  retrieve floor data from disk
 294  */
 295 void getfloor(struct floor *flbuf, int floor_num)
 296 {
 297         struct cdbdata *cdbfl;
 298
 299         memset(flbuf, 0, sizeof(struct floor));
 300         cdbfl = cdb_fetch(CDB_FLOORTAB, &floor_num, sizeof(int));
 301         if (cdbfl != NULL) {
 302                 memcpy(flbuf, cdbfl->ptr,
 303                        ((cdbfl->len > sizeof(struct floor)) ?
 304                         sizeof(struct floor) : cdbfl->len));
 305                 cdb_free(cdbfl);
 306         } else {
 307                 if (floor_num == 0) {
 308                         safestrncpy(flbuf->f_name, "Main Floor",
 309                                 sizeof flbuf->f_name);
 310                         flbuf->f_flags = F_INUSE;
 311                         flbuf->f_ref_count = 3;
 312                 }
 313         }
 314
 315 }
 316
 317 /*
 318  * lgetfloor()  -  same as getfloor() but locks the record (if supported)
 319  */
 320 void lgetfloor(struct floor *flbuf, int floor_num)
 321 {
 322
 323         begin_critical_section(S_FLOORTAB);
 324         getfloor(flbuf, floor_num);
 325 }
 326
 327
 328 /*
 329  * cgetfloor()  -  Get floor record from *cache* (loads from disk if needed)
 330  *
 331  * This is strictly a performance hack.
 332  */
 333 struct floor *cgetfloor(int floor_num) {
 334         static int initialized = 0;
 335         int i;
 336         int fetch_new = 0;
 337         struct floor *fl = NULL;
 338
 339         begin_critical_section(S_FLOORCACHE);
 340         if (initialized == 0) {
 341                 for (i=0; i<MAXFLOORS; ++i) {
 342                         floorcache[floor_num] = NULL;
 343                 }
 344         initialized = 1;
 345         }
 346         if (floorcache[floor_num] == NULL) {
 347                 fetch_new = 1;
 348         }
 349         end_critical_section(S_FLOORCACHE);
 350
 351         if (fetch_new) {
 352                 lprintf(CTDL_DEBUG, "fetch_new is active ... going to disk\n");
 353                 fl = malloc(sizeof(struct floor));
 354                 getfloor(fl, floor_num);
 355                 begin_critical_section(S_FLOORCACHE);
 356                 if (floorcache[floor_num] != NULL) {
 357                         free(floorcache[floor_num]);
 358                 }
 359                 floorcache[floor_num] = fl;
 360                 end_critical_section(S_FLOORCACHE);
 361         }
 362
 363         return(floorcache[floor_num]);
 364 }
 365
 366
 367
 368 /*
 369  * putfloor()  -  store floor data on disk
 370  */
 371 void putfloor(struct floor *flbuf, int floor_num)
 372 {
 373         /* If we've cached this, clear it out, 'cuz it's WRONG now! */
 374         begin_critical_section(S_FLOORCACHE);
 375         if (floorcache[floor_num] != NULL) {
 376                 free(floorcache[floor_num]);
 377                 floorcache[floor_num] = malloc(sizeof(struct floor));
 378                 memcpy(floorcache[floor_num], flbuf, sizeof(struct floor));
 379         }
 380         end_critical_section(S_FLOORCACHE);
 381
 382         cdb_store(CDB_FLOORTAB, &floor_num, sizeof(int),
 383                   flbuf, sizeof(struct floor));
 384 }
 385
 386
 387 /*
 388  * lputfloor()  -  same as putfloor() but unlocks the record (if supported)
 389  */
 390 void lputfloor(struct floor *flbuf, int floor_num)
 391 {
 392
 393         putfloor(flbuf, floor_num);
 394         end_critical_section(S_FLOORTAB);
 395
 396 }
 397
 398
 399 /*
 400  *  Traverse the room file...
 401  */
 402 void ForEachRoom(void (*CallBack) (struct ctdlroom *EachRoom, void *out_data),
 403                 void *in_data)
 404 {
 405         struct ctdlroom qrbuf;
 406         struct cdbdata *cdbqr;
 407
 408         cdb_rewind(CDB_ROOMS);
 409
 410         while (cdbqr = cdb_next_item(CDB_ROOMS), cdbqr != NULL) {
 411                 memset(&qrbuf, 0, sizeof(struct ctdlroom));
 412                 memcpy(&qrbuf, cdbqr->ptr,
 413                        ((cdbqr->len > sizeof(struct ctdlroom)) ?
 414                         sizeof(struct ctdlroom) : cdbqr->len));
 415                 cdb_free(cdbqr);
 416                 room_sanity_check(&qrbuf);
 417                 if (qrbuf.QRflags & QR_INUSE)
 418                         (*CallBack)(&qrbuf, in_data);
 419         }
 420 }
 421
 422
 423 /*
 424  * delete_msglist()  -  delete room message pointers
 425  */
 426 void delete_msglist(struct ctdlroom *whichroom)
 427 {
 428         struct cdbdata *cdbml;
 429
 430         /* Make sure the msglist we're deleting actually exists, otherwise
 431          * gdbm will complain when we try to delete an invalid record
 432          */
 433         cdbml = cdb_fetch(CDB_MSGLISTS, &whichroom->QRnumber, sizeof(long));
 434         if (cdbml != NULL) {
 435                 cdb_free(cdbml);
 436
 437                 /* Go ahead and delete it */
 438                 cdb_delete(CDB_MSGLISTS, &whichroom->QRnumber, sizeof(long));
 439         }
 440 }
 441
 442
 443
 444
 445 /*
 446  * sort message pointers
 447  * (returns new msg count)
 448  */
 449 int sort_msglist(long listptrs[], int oldcount)
 450 {
 451         int a, b;
 452         long hold1, hold2;
 453         int numitems;
 454
 455         numitems = oldcount;
 456         if (numitems < 2)
 457                 return (oldcount);
 458
 459         /* do the sort */
 460         for (a = numitems - 2; a >= 0; --a) {
 461                 for (b = 0; b <= a; ++b) {
 462                         if (listptrs[b] > (listptrs[b + 1])) {
 463                                 hold1 = listptrs[b];
 464                                 hold2 = listptrs[b + 1];
 465                                 listptrs[b] = hold2;
 466                                 listptrs[b + 1] = hold1;
 467                         }
 468                 }
 469         }
 470
 471         /* and yank any nulls */
 472         while ((numitems > 0) && (listptrs[0] == 0L)) {
 473                 memcpy(&listptrs[0], &listptrs[1],
 474                        (sizeof(long) * (numitems - 1)));
 475                 --numitems;
 476         }
 477
 478         return (numitems);
 479 }
 480
 481
 482 /*
 483  * Determine whether a given room is non-editable.
 484  */
 485 int is_noneditable(struct ctdlroom *qrbuf)
 486 {
 487
 488         /* Mail> rooms are non-editable */
 489         if ( (qrbuf->QRflags & QR_MAILBOX)
 490              && (!strcasecmp(&qrbuf->QRname[11], MAILROOM)) )
 491                 return (1);
 492
 493         /* Everything else is editable */
 494         return (0);
 495 }
 496
 497
 498
 499 /*
 500  * Back-back-end for all room listing commands
 501  */
 502 void list_roomname(struct ctdlroom *qrbuf, int ra)
 503 {
 504         char truncated_roomname[ROOMNAMELEN];
 505
 506         /* For my own mailbox rooms, chop off the owner prefix */
 507         if ( (qrbuf->QRflags & QR_MAILBOX)
 508              && (atol(qrbuf->QRname) == CC->user.usernum) ) {
 509                 strcpy(truncated_roomname, qrbuf->QRname);
 510                 strcpy(truncated_roomname, &truncated_roomname[11]);
 511                 cprintf("%s", truncated_roomname);
 512         }
 513         /* For all other rooms, just display the name in its entirety */
 514         else {
 515                 cprintf("%s", qrbuf->QRname);
 516         }
 517
 518         /* ...and now the other parameters */
 519         cprintf("|%u|%d|%d|%d|%d|\n",
 520                 qrbuf->QRflags,
 521                 (int) qrbuf->QRfloor,
 522                 (int) qrbuf->QRorder,
 523                 (int) qrbuf->QRflags2,
 524                 ra
 525         );
 526 }
 527
 528
 529 /*
 530  * cmd_lrms()   -  List all accessible rooms, known or forgotten
 531  */
 532 void cmd_lrms_backend(struct ctdlroom *qrbuf, void *data)
 533 {
 534         int FloorBeingSearched = (-1);
 535         int ra;
 536
 537         FloorBeingSearched = *(int *)data;
 538         ra = CtdlRoomAccess(qrbuf, &CC->user);
 539
 540         if ((( ra & (UA_KNOWN | UA_ZAPPED)))
 541             && ((qrbuf->QRfloor == (FloorBeingSearched))
 542                 || ((FloorBeingSearched) < 0)))
 543                 list_roomname(qrbuf, ra);
 544 }
 545
 546 void cmd_lrms(char *argbuf)
 547 {
 548         int FloorBeingSearched = (-1);
 549         if (strlen(argbuf) > 0)
 550                 FloorBeingSearched = extract_int(argbuf, 0);
 551
 552         if (CtdlAccessCheck(ac_logged_in)) return;
 553
 554         if (getuser(&CC->user, CC->curr_user)) {
 555                 cprintf("%d Can't locate user!\n", ERROR + INTERNAL_ERROR);
 556                 return;
 557         }
 558         cprintf("%d Accessible rooms:\n", LISTING_FOLLOWS);
 559
 560         ForEachRoom(cmd_lrms_backend, &FloorBeingSearched);
 561         cprintf("000\n");
 562 }
 563
 564
 565
 566 /*
 567  * cmd_lkra()   -  List all known rooms
 568  */
 569 void cmd_lkra_backend(struct ctdlroom *qrbuf, void *data)
 570 {
 571         int FloorBeingSearched = (-1);
 572         int ra;
 573
 574         FloorBeingSearched = *(int *)data;
 575         ra = CtdlRoomAccess(qrbuf, &CC->user);
 576
 577         if ((( ra & (UA_KNOWN)))
 578             && ((qrbuf->QRfloor == (FloorBeingSearched))
 579                 || ((FloorBeingSearched) < 0)))
 580                 list_roomname(qrbuf, ra);
 581 }
 582
 583 void cmd_lkra(char *argbuf)
 584 {
 585         int FloorBeingSearched = (-1);
 586         if (strlen(argbuf) > 0)
 587                 FloorBeingSearched = extract_int(argbuf, 0);
 588
 589         if (CtdlAccessCheck(ac_logged_in)) return;
 590
 591         if (getuser(&CC->user, CC->curr_user)) {
 592                 cprintf("%d Can't locate user!\n", ERROR + INTERNAL_ERROR);
 593                 return;
 594         }
 595         cprintf("%d Known rooms:\n", LISTING_FOLLOWS);
 596
 597         ForEachRoom(cmd_lkra_backend, &FloorBeingSearched);
 598         cprintf("000\n");
 599 }
 600
 601
 602
 603 void cmd_lprm_backend(struct ctdlroom *qrbuf, void *data)
 604 {
 605         int FloorBeingSearched = (-1);
 606         int ra;
 607
 608         FloorBeingSearched = *(int *)data;
 609         ra = CtdlRoomAccess(qrbuf, &CC->user);
 610
 611         if (   ((qrbuf->QRflags & QR_PRIVATE) == 0)
 612                 && ((qrbuf->QRflags & QR_MAILBOX) == 0)
 613             && ((qrbuf->QRfloor == (FloorBeingSearched))
 614                 || ((FloorBeingSearched) < 0)))
 615                 list_roomname(qrbuf, ra);
 616 }
 617
 618 void cmd_lprm(char *argbuf)
 619 {
 620         int FloorBeingSearched = (-1);
 621         if (strlen(argbuf) > 0)
 622                 FloorBeingSearched = extract_int(argbuf, 0);
 623
 624         cprintf("%d Publiic rooms:\n", LISTING_FOLLOWS);
 625
 626         ForEachRoom(cmd_lprm_backend, &FloorBeingSearched);
 627         cprintf("000\n");
 628 }
 629
 630
 631
 632 /*
 633  * cmd_lkrn()   -  List all known rooms with new messages
 634  */
 635 void cmd_lkrn_backend(struct ctdlroom *qrbuf, void *data)
 636 {
 637         int FloorBeingSearched = (-1);
 638         int ra;
 639
 640         FloorBeingSearched = *(int *)data;
 641         ra = CtdlRoomAccess(qrbuf, &CC->user);
 642
 643         if ((ra & UA_KNOWN)
 644             && (ra & UA_HASNEWMSGS)
 645             && ((qrbuf->QRfloor == (FloorBeingSearched))
 646                 || ((FloorBeingSearched) < 0)))
 647                 list_roomname(qrbuf, ra);
 648 }
 649
 650 void cmd_lkrn(char *argbuf)
 651 {
 652         int FloorBeingSearched = (-1);
 653         if (strlen(argbuf) > 0)
 654                 FloorBeingSearched = extract_int(argbuf, 0);
 655
 656         if (CtdlAccessCheck(ac_logged_in)) return;
 657
 658         if (getuser(&CC->user, CC->curr_user)) {
 659                 cprintf("%d Can't locate user!\n", ERROR + INTERNAL_ERROR);
 660                 return;
 661         }
 662         cprintf("%d Rooms w/ new msgs:\n", LISTING_FOLLOWS);
 663
 664         ForEachRoom(cmd_lkrn_backend, &FloorBeingSearched);
 665         cprintf("000\n");
 666 }
 667
 668
 669
 670 /*
 671  * cmd_lkro()   -  List all known rooms
 672  */
 673 void cmd_lkro_backend(struct ctdlroom *qrbuf, void *data)
 674 {
 675         int FloorBeingSearched = (-1);
 676         int ra;
 677
 678         FloorBeingSearched = *(int *)data;
 679         ra = CtdlRoomAccess(qrbuf, &CC->user);
 680
 681         if ((ra & UA_KNOWN)
 682             && ((ra & UA_HASNEWMSGS) == 0)
 683             && ((qrbuf->QRfloor == (FloorBeingSearched))
 684                 || ((FloorBeingSearched) < 0)))
 685                 list_roomname(qrbuf, ra);
 686 }
 687
 688 void cmd_lkro(char *argbuf)
 689 {
 690         int FloorBeingSearched = (-1);
 691         if (strlen(argbuf) > 0)
 692                 FloorBeingSearched = extract_int(argbuf, 0);
 693
 694         if (CtdlAccessCheck(ac_logged_in)) return;
 695
 696         if (getuser(&CC->user, CC->curr_user)) {
 697                 cprintf("%d Can't locate user!\n", ERROR + INTERNAL_ERROR);
 698                 return;
 699         }
 700         cprintf("%d Rooms w/o new msgs:\n", LISTING_FOLLOWS);
 701
 702         ForEachRoom(cmd_lkro_backend, &FloorBeingSearched);
 703         cprintf("000\n");
 704 }
 705
 706
 707
 708 /*
 709  * cmd_lzrm()   -  List all forgotten rooms
 710  */
 711 void cmd_lzrm_backend(struct ctdlroom *qrbuf, void *data)
 712 {
 713         int FloorBeingSearched = (-1);
 714
 715         int ra;
 716         FloorBeingSearched = *(int *)data;
 717         ra = CtdlRoomAccess(qrbuf, &CC->user);
 718
 719         if ((ra & UA_GOTOALLOWED)
 720             && (ra & UA_ZAPPED)
 721             && ((qrbuf->QRfloor == (FloorBeingSearched))
 722                 || ((FloorBeingSearched) < 0)))
 723                 list_roomname(qrbuf, ra);
 724 }
 725
 726 void cmd_lzrm(char *argbuf)
 727 {
 728         int FloorBeingSearched = (-1);
 729         if (strlen(argbuf) > 0)
 730                 FloorBeingSearched = extract_int(argbuf, 0);
 731
 732         if (CtdlAccessCheck(ac_logged_in)) return;
 733
 734         if (getuser(&CC->user, CC->curr_user)) {
 735                 cprintf("%d Can't locate user!\n", ERROR + INTERNAL_ERROR);
 736                 return;
 737         }
 738         cprintf("%d Zapped rooms:\n", LISTING_FOLLOWS);
 739
 740         ForEachRoom(cmd_lzrm_backend, &FloorBeingSearched);
 741         cprintf("000\n");
 742 }
 743
 744
 745 /*
 746  * Make the specified room the current room for this session.  No validation
 747  * or access control is done here -- the caller should make sure that the
 748  * specified room exists and is ok to access.
 749  */
 750 void usergoto(char *where, int display_result, int transiently,
 751                 int *retmsgs, int *retnew)
 752 {
 753         int a;
 754         int new_messages = 0;
 755         int total_messages = 0;
 756         int info = 0;
 757         int rmailflag;
 758         int raideflag;
 759         int newmailcount = 0;
 760         struct visit vbuf;
 761         char truncated_roomname[ROOMNAMELEN];
 762         struct cdbdata *cdbfr;
 763         long *msglist = NULL;
 764         int num_msgs = 0;
 765         unsigned int original_v_flags;
 766
 767         /* If the supplied room name is NULL, the caller wants us to know that
 768          * it has already copied the room record into CC->room, so
 769          * we can skip the extra database fetch.
 770          */
 771         if (where != NULL) {
 772                 safestrncpy(CC->room.QRname, where, sizeof CC->room.QRname);
 773                 getroom(&CC->room, where);
 774         }
 775
 776         /* Take care of all the formalities. */
 777
 778         begin_critical_section(S_USERS);
 779         CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
 780         original_v_flags = vbuf.v_flags;
 781
 782         /* Know the room ... but not if it's the page log room, or if the
 783          * caller specified that we're only entering this room transiently.
 784          */
 785         if ((strcasecmp(CC->room.QRname, config.c_logpages))
 786            && (transiently == 0) ) {
 787                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
 788                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
 789         }
 790
 791         /* Only rewrite the database record if we changed something */
 792         if (vbuf.v_flags != original_v_flags) {
 793                 CtdlSetRelationship(&vbuf, &CC->user, &CC->room);
 794         }
 795         end_critical_section(S_USERS);
 796
 797         /* Check for new mail */
 798         newmailcount = NewMailCount();
 799
 800         /* set info to 1 if the user needs to read the room's info file */
 801         if (CC->room.QRinfo > vbuf.v_lastseen) {
 802                 info = 1;
 803         }
 804
 805         get_mm();
 806         cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
 807         if (cdbfr != NULL) {
 808                 msglist = malloc(cdbfr->len);
 809                 memcpy(msglist, cdbfr->ptr, cdbfr->len);
 810                 num_msgs = cdbfr->len / sizeof(long);
 811                 cdb_free(cdbfr);
 812         }
 813
 814         if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
 815                 if (msglist[a] > 0L) {
 816                         ++total_messages;
 817                         if (is_msg_in_mset(vbuf.v_seen, msglist[a]) == 0) {
 818                                 ++new_messages;
 819                         }
 820                 }
 821         }
 822
 823         if (msglist != NULL) free(msglist);
 824
 825         if (CC->room.QRflags & QR_MAILBOX)
 826                 rmailflag = 1;
 827         else
 828                 rmailflag = 0;
 829
 830         if ((CC->room.QRroomaide == CC->user.usernum)
 831             || (CC->user.axlevel >= 6))
 832                 raideflag = 1;
 833         else
 834                 raideflag = 0;
 835
 836         strcpy(truncated_roomname, CC->room.QRname);
 837         if ( (CC->room.QRflags & QR_MAILBOX)
 838            && (atol(CC->room.QRname) == CC->user.usernum) ) {
 839                 strcpy(truncated_roomname, &truncated_roomname[11]);
 840         }
 841
 842         if (retmsgs != NULL) *retmsgs = total_messages;
 843         if (retnew != NULL) *retnew = new_messages;
 844         lprintf(CTDL_DEBUG, "<%s> %d new of %d total messages\n",
 845                 CC->room.QRname,
 846                 new_messages, total_messages
 847         );
 848
 849         if (display_result) {
 850                 cprintf("%d%c%s|%d|%d|%d|%d|%ld|%ld|%d|%d|%d|%d|%d|%d|\n",
 851                         CIT_OK, CtdlCheckExpress(),
 852                         truncated_roomname,
 853                         (int)new_messages,
 854                         (int)total_messages,
 855                         (int)info,
 856                         (int)CC->room.QRflags,
 857                         (long)CC->room.QRhighest,
 858                         (long)vbuf.v_lastseen,
 859                         (int)rmailflag,
 860                         (int)raideflag,
 861                         (int)newmailcount,
 862                         (int)CC->room.QRfloor,
 863                         (int)vbuf.v_view,
 864                         (int)CC->room.QRdefaultview
 865                 );
 866         }
 867 }
 868
 869
 870 /*
 871  * cmd_goto()  -  goto a new room
 872  */
 873 void cmd_goto(char *gargs)
 874 {
 875         struct ctdlroom QRscratch;
 876         int c;
 877         int ok = 0;
 878         int ra;
 879         char augmented_roomname[SIZ];
 880         char towhere[SIZ];
 881         char password[SIZ];
 882         int transiently = 0;
 883
 884         if (CtdlAccessCheck(ac_logged_in)) return;
 885
 886         extract(towhere, gargs, 0);
 887         extract(password, gargs, 1);
 888         transiently = extract_int(gargs, 2);
 889
 890         getuser(&CC->user, CC->curr_user);
 891
 892         if (!strcasecmp(towhere, "_BASEROOM_"))
 893                 strcpy(towhere, config.c_baseroom);
 894
 895         if (!strcasecmp(towhere, "_MAIL_"))
 896                 strcpy(towhere, MAILROOM);
 897
 898         if (!strcasecmp(towhere, "_BITBUCKET_"))
 899                 strcpy(towhere, config.c_twitroom);
 900
 901
 902         /* First try a regular match */
 903         c = getroom(&QRscratch, towhere);
 904
 905         /* Then try a mailbox name match */
 906         if (c != 0) {
 907                 MailboxName(augmented_roomname, sizeof augmented_roomname,
 908                             &CC->user, towhere);
 909                 c = getroom(&QRscratch, augmented_roomname);
 910                 if (c == 0)
 911                         strcpy(towhere, augmented_roomname);
 912         }
 913
 914         /* And if the room was found... */
 915         if (c == 0) {
 916
 917                 /* Let internal programs go directly to any room. */
 918                 if (CC->internal_pgm) {
 919                         memcpy(&CC->room, &QRscratch,
 920                                 sizeof(struct ctdlroom));
 921                         usergoto(NULL, 1, transiently, NULL, NULL);
 922                         return;
 923                 }
 924
 925                 /* See if there is an existing user/room relationship */
 926                 ra = CtdlRoomAccess(&QRscratch, &CC->user);
 927
 928                 /* normal clients have to pass through security */
 929                 if (ra & UA_GOTOALLOWED) {
 930                         ok = 1;
 931                 }
 932
 933                 if (ok == 1) {
 934                         if ((QRscratch.QRflags & QR_MAILBOX) &&
 935                             ((ra & UA_GOTOALLOWED))) {
 936                                 memcpy(&CC->room, &QRscratch,
 937                                         sizeof(struct ctdlroom));
 938                                 usergoto(NULL, 1, transiently, NULL, NULL);
 939                                 return;
 940                         } else if ((QRscratch.QRflags & QR_PASSWORDED) &&
 941                             ((ra & UA_KNOWN) == 0) &&
 942                             (strcasecmp(QRscratch.QRpasswd, password)) &&
 943                             (CC->user.axlevel < 6)
 944                             ) {
 945                                 cprintf("%d wrong or missing passwd\n",
 946                                         ERROR + PASSWORD_REQUIRED);
 947                                 return;
 948                         } else if ((QRscratch.QRflags & QR_PRIVATE) &&
 949                                    ((QRscratch.QRflags & QR_PASSWORDED) == 0) &&
 950                                    ((QRscratch.QRflags & QR_GUESSNAME) == 0) &&
 951                                    ((ra & UA_KNOWN) == 0) &&
 952                                    (CC->user.axlevel < 6)
 953                                   ) {
 954                                 lprintf(CTDL_DEBUG, "Failed to acquire private room\n");
 955                         } else {
 956                                 memcpy(&CC->room, &QRscratch,
 957                                         sizeof(struct ctdlroom));
 958                                 usergoto(NULL, 1, transiently, NULL, NULL);
 959                                 return;
 960                         }
 961                 }
 962         }
 963
 964         cprintf("%d room '%s' not found\n", ERROR + ROOM_NOT_FOUND, towhere);
 965 }
 966
 967
 968 void cmd_whok(void)
 969 {
 970         struct ctdluser temp;
 971         struct cdbdata *cdbus;
 972
 973         getuser(&CC->user, CC->curr_user);
 974
 975         /*
 976          * This command is only allowed by aides, room aides,
 977          * and room namespace owners
 978          */
 979         if (is_room_aide()
 980            || (atol(CC->room.QRname) == CC->user.usernum) ) {
 981                 /* access granted */
 982         }
 983         else {
 984                 /* access denied */
 985                 cprintf("%d Higher access or room ownership required.\n",
 986                         ERROR + HIGHER_ACCESS_REQUIRED);
 987                 return;
 988         }
 989
 990         cprintf("%d Who knows room:\n", LISTING_FOLLOWS);
 991         cdb_rewind(CDB_USERS);
 992         while (cdbus = cdb_next_item(CDB_USERS), cdbus != NULL) {
 993                 memset(&temp, 0, sizeof temp);
 994                 memcpy(&temp, cdbus->ptr, sizeof temp);
 995                 cdb_free(cdbus);
 996
 997                 if ((CC->room.QRflags & QR_INUSE)
 998                     && (CtdlRoomAccess(&CC->room, &temp) & UA_KNOWN)
 999                     )
1000                         cprintf("%s\n", temp.fullname);
1001         }
1002         cprintf("000\n");
1003 }
1004
1005
1006 /*
1007  * RDIR command for room directory
1008  */
1009 void cmd_rdir(void)
1010 {
1011         char buf[SIZ];
1012         char flnm[SIZ];
1013         char comment[SIZ];
1014         FILE *ls, *fd;
1015         struct stat statbuf;
1016
1017         if (CtdlAccessCheck(ac_logged_in)) return;
1018
1019         getroom(&CC->room, CC->room.QRname);
1020         getuser(&CC->user, CC->curr_user);
1021
1022         if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
1023                 cprintf("%d not here.\n", ERROR + NOT_HERE);
1024                 return;
1025         }
1026         if (((CC->room.QRflags & QR_VISDIR) == 0)
1027             && (CC->user.axlevel < 6)
1028             && (CC->user.usernum != CC->room.QRroomaide)) {
1029                 cprintf("%d not here.\n", ERROR + HIGHER_ACCESS_REQUIRED);
1030                 return;
1031         }
1032         cprintf("%d %s|%s/files/%s\n",
1033         LISTING_FOLLOWS, config.c_fqdn, BBSDIR, CC->room.QRdirname);
1034
1035         snprintf(buf, sizeof buf, "ls %s/files/%s  >%s 2> /dev/null",
1036                 BBSDIR, CC->room.QRdirname, CC->temp);
1037         system(buf);
1038
1039         snprintf(buf, sizeof buf, "%s/files/%s/filedir", BBSDIR, CC->room.QRdirname);
1040         fd = fopen(buf, "r");
1041         if (fd == NULL)
1042                 fd = fopen("/dev/null", "r");
1043
1044         ls = fopen(CC->temp, "r");
1045         while (fgets(flnm, sizeof flnm, ls) != NULL) {
1046                 flnm[strlen(flnm) - 1] = 0;
1047                 if (strcasecmp(flnm, "filedir")) {
1048                         snprintf(buf, sizeof buf, "%s/files/%s/%s",
1049                                 BBSDIR, CC->room.QRdirname, flnm);
1050                         stat(buf, &statbuf);
1051                         strcpy(comment, "");
1052                         fseek(fd, 0L, 0);
1053                         while ((fgets(buf, sizeof buf, fd) != NULL)
1054                                && (strlen(comment) == 0)) {
1055                                 buf[strlen(buf) - 1] = 0;
1056                                 if ((!strncasecmp(buf, flnm, strlen(flnm)))
1057                                     && (buf[strlen(flnm)] == ' '))
1058                                         safestrncpy(comment,
1059                                             &buf[strlen(flnm) + 1],
1060                                             sizeof comment);
1061                         }
1062                         cprintf("%s|%ld|%s\n", flnm, (long)statbuf.st_size, comment);
1063                 }
1064         }
1065         fclose(ls);
1066         fclose(fd);
1067         unlink(CC->temp);
1068
1069         cprintf("000\n");
1070 }
1071
1072 /*
1073  * get room parameters (aide or room aide command)
1074  */
1075 void cmd_getr(void)
1076 {
1077         if (CtdlAccessCheck(ac_room_aide)) return;
1078
1079         getroom(&CC->room, CC->room.QRname);
1080         cprintf("%d%c%s|%s|%s|%d|%d|%d|%d|%d|\n",
1081                 CIT_OK,
1082                 CtdlCheckExpress(),
1083
1084                 ((CC->room.QRflags & QR_MAILBOX) ?
1085                         &CC->room.QRname[11] : CC->room.QRname),
1086
1087                 ((CC->room.QRflags & QR_PASSWORDED) ?
1088                         CC->room.QRpasswd : ""),
1089
1090                 ((CC->room.QRflags & QR_DIRECTORY) ?
1091                         CC->room.QRdirname : ""),
1092
1093                 CC->room.QRflags,
1094                 (int) CC->room.QRfloor,
1095                 (int) CC->room.QRorder,
1096
1097                 CC->room.QRdefaultview,
1098                 CC->room.QRflags2
1099                 );
1100 }
1101
1102
1103 /*
1104  * Back end function to rename a room.
1105  * You can also specify which floor to move the room to, or specify -1 to
1106  * keep the room on the same floor it was on.
1107  *
1108  * If you are renaming a mailbox room, you must supply the namespace prefix
1109  * in *at least* the old name!
1110  */
1111 int CtdlRenameRoom(char *old_name, char *new_name, int new_floor) {
1112         int old_floor = 0;
1113         struct ctdlroom qrbuf;
1114         struct ctdlroom qrtmp;
1115         int ret = 0;
1116         struct floor *fl;
1117         struct floor flbuf;
1118         long owner = 0L;
1119         char actual_old_name[SIZ];
1120
1121         lprintf(CTDL_DEBUG, "CtdlRenameRoom(%s, %s, %d)\n",
1122                 old_name, new_name, new_floor);
1123
1124         if (new_floor >= 0) {
1125                 fl = cgetfloor(new_floor);
1126                 if ((fl->f_flags & F_INUSE) == 0) {
1127                         return(crr_invalid_floor);
1128                 }
1129         }
1130
1131         begin_critical_section(S_ROOMS);
1132
1133         if ( (getroom(&qrtmp, new_name) == 0)
1134            && (strcasecmp(new_name, old_name)) ) {
1135                 ret = crr_already_exists;
1136         }
1137
1138         else if (getroom(&qrbuf, old_name) != 0) {
1139                 ret = crr_room_not_found;
1140         }
1141
1142         else if ( (CC->user.axlevel < 6)
1143                   && (CC->user.usernum != qrbuf.QRroomaide)
1144                   && ( (((qrbuf.QRflags & QR_MAILBOX) == 0) || (atol(qrbuf.QRname) != CC->user.usernum))) )  {
1145                 ret = crr_access_denied;
1146         }
1147
1148         else if (is_noneditable(&qrbuf)) {
1149                 ret = crr_noneditable;
1150         }
1151
1152         else {
1153                 /* Rename it */
1154                 strcpy(actual_old_name, qrbuf.QRname);
1155                 if (qrbuf.QRflags & QR_MAILBOX) {
1156                         owner = atol(qrbuf.QRname);
1157                 }
1158                 if ( (owner > 0L) && (atol(new_name) == 0L) ) {
1159                         snprintf(qrbuf.QRname, sizeof(qrbuf.QRname),
1160                                         "%010ld.%s", owner, new_name);
1161                 }
1162                 else {
1163                         safestrncpy(qrbuf.QRname, new_name,
1164                                                 sizeof(qrbuf.QRname));
1165                 }
1166
1167                 /* Reject change of floor for baseroom/aideroom */
1168                 if (!strncasecmp(old_name, config.c_baseroom, ROOMNAMELEN) ||
1169                     !strncasecmp(old_name, config.c_aideroom, ROOMNAMELEN)) {
1170                         new_floor = 0;
1171                 }
1172
1173                 /* Take care of floor stuff */
1174                 old_floor = qrbuf.QRfloor;
1175                 if (new_floor < 0) {
1176                         new_floor = old_floor;
1177                 }
1178                 qrbuf.QRfloor = new_floor;
1179                 putroom(&qrbuf);
1180
1181                 begin_critical_section(S_CONFIG);
1182
1183                 /* If baseroom/aideroom name changes, update config */
1184                 if (!strncasecmp(old_name, config.c_baseroom, ROOMNAMELEN)) {
1185                         safestrncpy(config.c_baseroom, new_name, ROOMNAMELEN);
1186                         put_config();
1187                 }
1188                 if (!strncasecmp(old_name, config.c_aideroom, ROOMNAMELEN)) {
1189                         safestrncpy(config.c_aideroom, new_name, ROOMNAMELEN);
1190                         put_config();
1191                 }
1192
1193                 end_critical_section(S_CONFIG);
1194
1195                 /* If the room name changed, then there are now two room
1196                  * records, so we have to delete the old one.
1197                  */
1198                 if (strcasecmp(new_name, old_name)) {
1199                         b_deleteroom(actual_old_name);
1200                 }
1201
1202                 ret = crr_ok;
1203         }
1204
1205         end_critical_section(S_ROOMS);
1206
1207         /* Adjust the floor reference counts if necessary */
1208         if (new_floor != old_floor) {
1209                 lgetfloor(&flbuf, old_floor);
1210                 --flbuf.f_ref_count;
1211                 lputfloor(&flbuf, old_floor);
1212                 lprintf(CTDL_DEBUG, "Reference count for floor %d is now %d\n", old_floor, flbuf.f_ref_count);
1213                 lgetfloor(&flbuf, new_floor);
1214                 ++flbuf.f_ref_count;
1215                 lputfloor(&flbuf, new_floor);
1216                 lprintf(CTDL_DEBUG, "Reference count for floor %d is now %d\n", new_floor, flbuf.f_ref_count);
1217         }
1218
1219         /* ...and everybody say "YATTA!" */
1220         return(ret);
1221 }
1222
1223
1224 /*
1225  * set room parameters (aide or room aide command)
1226  */
1227 void cmd_setr(char *args)
1228 {
1229         char buf[SIZ];
1230         int new_order = 0;
1231         int r;
1232         int new_floor;
1233         char new_name[ROOMNAMELEN];
1234
1235         if (CtdlAccessCheck(ac_logged_in)) return;
1236
1237         if (num_parms(args) >= 6) {
1238                 new_floor = extract_int(args, 5);
1239         } else {
1240                 new_floor = (-1);       /* don't change the floor */
1241         }
1242
1243         /* When is a new name more than just a new name?  When the old name
1244          * has a namespace prefix.
1245          */
1246         if (CC->room.QRflags & QR_MAILBOX) {
1247                 sprintf(new_name, "%010ld.", atol(CC->room.QRname) );
1248         } else {
1249                 strcpy(new_name, "");
1250         }
1251         extract(&new_name[strlen(new_name)], args, 0);
1252
1253         r = CtdlRenameRoom(CC->room.QRname, new_name, new_floor);
1254
1255         if (r == crr_room_not_found) {
1256                 cprintf("%d Internal error - room not found?\n", ERROR + INTERNAL_ERROR);
1257         } else if (r == crr_already_exists) {
1258                 cprintf("%d '%s' already exists.\n",
1259                         ERROR + ALREADY_EXISTS, new_name);
1260         } else if (r == crr_noneditable) {
1261                 cprintf("%d Cannot edit this room.\n", ERROR + NOT_HERE);
1262         } else if (r == crr_invalid_floor) {
1263                 cprintf("%d Target floor does not exist.\n",
1264                         ERROR + INVALID_FLOOR_OPERATION);
1265         } else if (r == crr_access_denied) {
1266                 cprintf("%d You do not have permission to edit '%s'\n",
1267                         ERROR + HIGHER_ACCESS_REQUIRED,
1268                         CC->room.QRname);
1269         } else if (r != crr_ok) {
1270                 cprintf("%d Error: CtdlRenameRoom() returned %d\n",
1271                         ERROR + INTERNAL_ERROR, r);
1272         }
1273
1274         if (r != crr_ok) {
1275                 return;
1276         }
1277
1278         getroom(&CC->room, new_name);
1279
1280         /* Now we have to do a bunch of other stuff */
1281
1282         if (num_parms(args) >= 7) {
1283                 new_order = extract_int(args, 6);
1284                 if (new_order < 1)
1285                         new_order = 1;
1286                 if (new_order > 127)
1287                         new_order = 127;
1288         }
1289
1290         lgetroom(&CC->room, CC->room.QRname);
1291
1292         /* Directory room */
1293         extract(buf, args, 2);
1294         buf[15] = 0;
1295         safestrncpy(CC->room.QRdirname, buf,
1296                 sizeof CC->room.QRdirname);
1297
1298         /* Default view */
1299         if (num_parms(args) >= 8) {
1300                 CC->room.QRdefaultview = extract_int(args, 7);
1301         }
1302
1303         /* Second set of flags */
1304         if (num_parms(args) >= 9) {
1305                 CC->room.QRflags2 = extract_int(args, 8);
1306         }
1307
1308         /* Misc. flags */
1309         CC->room.QRflags = (extract_int(args, 3) | QR_INUSE);
1310         /* Clean up a client boo-boo: if the client set the room to
1311          * guess-name or passworded, ensure that the private flag is
1312          * also set.
1313          */
1314         if ((CC->room.QRflags & QR_GUESSNAME)
1315             || (CC->room.QRflags & QR_PASSWORDED))
1316                 CC->room.QRflags |= QR_PRIVATE;
1317
1318         /* Some changes can't apply to BASEROOM */
1319         if (!strncasecmp(CC->room.QRname, config.c_baseroom,
1320                          ROOMNAMELEN)) {
1321                 CC->room.QRorder = 0;
1322                 CC->room.QRpasswd[0] = '\0';
1323                 CC->room.QRflags &= ~(QR_PRIVATE & QR_PASSWORDED &
1324                         QR_GUESSNAME & QR_PREFONLY & QR_MAILBOX);
1325                 CC->room.QRflags |= QR_PERMANENT;
1326         } else {
1327                 /* March order (doesn't apply to AIDEROOM) */
1328                 if (num_parms(args) >= 7)
1329                         CC->room.QRorder = (char) new_order;
1330                 /* Room password */
1331                 extract(buf, args, 1);
1332                 buf[10] = 0;
1333                 safestrncpy(CC->room.QRpasswd, buf,
1334                             sizeof CC->room.QRpasswd);
1335                 /* Kick everyone out if the client requested it
1336                  * (by changing the room's generation number)
1337                  */
1338                 if (extract_int(args, 4)) {
1339                         time(&CC->room.QRgen);
1340                 }
1341         }
1342         /* Some changes can't apply to AIDEROOM */
1343         if (!strncasecmp(CC->room.QRname, config.c_baseroom,
1344                          ROOMNAMELEN)) {
1345                 CC->room.QRorder = 0;
1346                 CC->room.QRflags &= ~QR_MAILBOX;
1347                 CC->room.QRflags |= QR_PERMANENT;
1348         }
1349
1350         /* Write the room record back to disk */
1351         lputroom(&CC->room);
1352
1353         /* Create a room directory if necessary */
1354         if (CC->room.QRflags & QR_DIRECTORY) {
1355                 snprintf(buf, sizeof buf, "./files/%s",
1356                         CC->room.QRdirname);
1357                 mkdir(buf, 0755);
1358         }
1359         snprintf(buf, sizeof buf, "%s> edited by %s\n", CC->room.QRname, CC->curr_user);
1360         aide_message(buf);
1361         cprintf("%d Ok\n", CIT_OK);
1362 }
1363
1364
1365
1366 /*
1367  * get the name of the room aide for this room
1368  */
1369 void cmd_geta(void)
1370 {
1371         struct ctdluser usbuf;
1372
1373         if (CtdlAccessCheck(ac_logged_in)) return;
1374
1375         if (getuserbynumber(&usbuf, CC->room.QRroomaide) == 0) {
1376                 cprintf("%d %s\n", CIT_OK, usbuf.fullname);
1377         } else {
1378                 cprintf("%d \n", CIT_OK);
1379         }
1380 }
1381
1382
1383 /*
1384  * set the room aide for this room
1385  */
1386 void cmd_seta(char *new_ra)
1387 {
1388         struct ctdluser usbuf;
1389         long newu;
1390         char buf[SIZ];
1391         int post_notice;
1392
1393         if (CtdlAccessCheck(ac_room_aide)) return;
1394
1395         if (getuser(&usbuf, new_ra) != 0) {
1396                 newu = (-1L);
1397         } else {
1398                 newu = usbuf.usernum;
1399         }
1400
1401         lgetroom(&CC->room, CC->room.QRname);
1402         post_notice = 0;
1403         if (CC->room.QRroomaide != newu) {
1404                 post_notice = 1;
1405         }
1406         CC->room.QRroomaide = newu;
1407         lputroom(&CC->room);
1408
1409         /*
1410          * We have to post the change notice _after_ writing changes to
1411          * the room table, otherwise it would deadlock!
1412          */
1413         if (post_notice == 1) {
1414                 if (strlen(usbuf.fullname) > 0)
1415                         snprintf(buf, sizeof buf,
1416                                 "%s is now room aide for %s>\n",
1417                                 usbuf.fullname, CC->room.QRname);
1418                 else
1419                         snprintf(buf, sizeof buf,
1420                                 "There is now no room aide for %s>\n",
1421                                 CC->room.QRname);
1422                 aide_message(buf);
1423         }
1424         cprintf("%d Ok\n", CIT_OK);
1425 }
1426
1427 /*
1428  * Generate an associated file name for a room
1429  */
1430 void assoc_file_name(char *buf, size_t n,
1431                      struct ctdlroom *qrbuf, const char *prefix)
1432 {
1433         snprintf(buf, n, "./%s/%ld", prefix, qrbuf->QRnumber);
1434 }
1435
1436 /*
1437  * retrieve info file for this room
1438  */
1439 void cmd_rinf(void)
1440 {
1441         char filename[128];
1442         char buf[SIZ];
1443         FILE *info_fp;
1444
1445         assoc_file_name(filename, sizeof filename, &CC->room, "info");
1446         info_fp = fopen(filename, "r");
1447
1448         if (info_fp == NULL) {
1449                 cprintf("%d No info file.\n", ERROR + FILE_NOT_FOUND);
1450                 return;
1451         }
1452         cprintf("%d Info:\n", LISTING_FOLLOWS);
1453         while (fgets(buf, sizeof buf, info_fp) != NULL) {
1454                 if (strlen(buf) > 0)
1455                         buf[strlen(buf) - 1] = 0;
1456                 cprintf("%s\n", buf);
1457         }
1458         cprintf("000\n");
1459         fclose(info_fp);
1460 }
1461
1462 /*
1463  * Back end processing to delete a room and everything associated with it
1464  */
1465 void delete_room(struct ctdlroom *qrbuf)
1466 {
1467         struct floor flbuf;
1468         char filename[100];
1469
1470         lprintf(CTDL_NOTICE, "Deleting room <%s>\n", qrbuf->QRname);
1471
1472         /* Delete the info file */
1473         assoc_file_name(filename, sizeof filename, qrbuf, "info");
1474         unlink(filename);
1475
1476         /* Delete the image file */
1477         assoc_file_name(filename, sizeof filename, qrbuf, "images");
1478         unlink(filename);
1479
1480         /* Delete the room's network config file */
1481         assoc_file_name(filename, sizeof filename, qrbuf, "netconfigs");
1482         unlink(filename);
1483
1484         /* Delete the messages in the room
1485          * (Careful: this opens an S_ROOMS critical section!)
1486          */
1487         CtdlDeleteMessages(qrbuf->QRname, 0L, "");
1488
1489         /* Flag the room record as not in use */
1490         lgetroom(qrbuf, qrbuf->QRname);
1491         qrbuf->QRflags = 0;
1492         lputroom(qrbuf);
1493
1494         /* then decrement the reference count for the floor */
1495         lgetfloor(&flbuf, (int) (qrbuf->QRfloor));
1496         flbuf.f_ref_count = flbuf.f_ref_count - 1;
1497         lputfloor(&flbuf, (int) (qrbuf->QRfloor));
1498
1499         /* Delete the room record from the database! */
1500         b_deleteroom(qrbuf->QRname);
1501 }
1502
1503
1504
1505 /*
1506  * Check access control for deleting a room
1507  */
1508 int CtdlDoIHavePermissionToDeleteThisRoom(struct ctdlroom *qr) {
1509
1510         if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
1511                 return(0);
1512         }
1513
1514         if (is_noneditable(qr)) {
1515                 return(0);
1516         }
1517
1518         /*
1519          * For mailboxes, check stuff
1520          */
1521         if (qr->QRflags & QR_MAILBOX) {
1522
1523                 if (strlen(qr->QRname) < 12) return(0); /* bad name */
1524
1525                 if (atol(qr->QRname) != CC->user.usernum) {
1526                         return(0);      /* not my room */
1527                 }
1528
1529                 /* Can't delete your Mail> room */
1530                 if (!strcasecmp(&qr->QRname[12], MAILROOM)) return(0);
1531
1532                 /* Otherwise it's ok */
1533                 return(1);
1534         }
1535
1536         /*
1537          * For normal rooms, just check for aide or room aide status.
1538          */
1539         return(is_room_aide());
1540 }
1541
1542 /*
1543  * aide command: kill the current room
1544  */
1545 void cmd_kill(char *argbuf)
1546 {
1547         char deleted_room_name[ROOMNAMELEN];
1548         char msg[SIZ];
1549         int kill_ok;
1550
1551         kill_ok = extract_int(argbuf, 0);
1552
1553         if (CtdlDoIHavePermissionToDeleteThisRoom(&CC->room) == 0) {
1554                 cprintf("%d Can't delete this room.\n", ERROR + NOT_HERE);
1555                 return;
1556         }
1557         if (kill_ok) {
1558                 if (CC->room.QRflags & QR_MAILBOX) {
1559                         strcpy(deleted_room_name, &CC->room.QRname[11]);
1560                 }
1561                 else {
1562                         strcpy(deleted_room_name, CC->room.QRname);
1563                 }
1564
1565                 /* Do the dirty work */
1566                 delete_room(&CC->room);
1567
1568                 /* Return to the Lobby */
1569                 usergoto(config.c_baseroom, 0, 0, NULL, NULL);
1570
1571                 /* tell the world what we did */
1572                 snprintf(msg, sizeof msg, "%s> killed by %s\n",
1573                          deleted_room_name, CC->curr_user);
1574                 aide_message(msg);
1575                 cprintf("%d '%s' deleted.\n", CIT_OK, deleted_room_name);
1576         } else {
1577                 cprintf("%d ok to delete.\n", CIT_OK);
1578         }
1579 }
1580
1581
1582 /*
1583  * Internal code to create a new room (returns room flags)
1584  *
1585  * Room types:  0=public, 1=guessname, 2=passworded, 3=inv-only,
1586  *              4=mailbox, 5=mailbox, but caller supplies namespace
1587  */
1588 unsigned create_room(char *new_room_name,
1589                      int new_room_type,
1590                      char *new_room_pass,
1591                      int new_room_floor,
1592                      int really_create,
1593                      int avoid_access)
1594 {
1595
1596         struct ctdlroom qrbuf;
1597         struct floor flbuf;
1598         struct visit vbuf;
1599
1600         lprintf(CTDL_DEBUG, "create_room(%s)\n", new_room_name);
1601         if (getroom(&qrbuf, new_room_name) == 0) {
1602                 lprintf(CTDL_DEBUG, "%s already exists.\n", new_room_name);
1603                 return (0);     /* already exists */
1604         }
1605
1606
1607         memset(&qrbuf, 0, sizeof(struct ctdlroom));
1608         safestrncpy(qrbuf.QRpasswd, new_room_pass, sizeof qrbuf.QRpasswd);
1609         qrbuf.QRflags = QR_INUSE;
1610         if (new_room_type > 0)
1611                 qrbuf.QRflags = (qrbuf.QRflags | QR_PRIVATE);
1612         if (new_room_type == 1)
1613                 qrbuf.QRflags = (qrbuf.QRflags | QR_GUESSNAME);
1614         if (new_room_type == 2)
1615                 qrbuf.QRflags = (qrbuf.QRflags | QR_PASSWORDED);
1616         if ( (new_room_type == 4) || (new_room_type == 5) )
1617                 qrbuf.QRflags = (qrbuf.QRflags | QR_MAILBOX);
1618
1619         /* If the user is requesting a personal room, set up the room
1620          * name accordingly (prepend the user number)
1621          */
1622         if (new_room_type == 4) {
1623                 MailboxName(qrbuf.QRname, sizeof qrbuf.QRname, &CC->user, new_room_name);
1624         }
1625         else {
1626                 safestrncpy(qrbuf.QRname, new_room_name, sizeof qrbuf.QRname);
1627         }
1628
1629         /* If the room is private, and the system administrator has elected
1630          * to automatically grant room aide privileges, do so now; otherwise,
1631          * set the room aide to undefined.
1632          */
1633         if ((qrbuf.QRflags & QR_PRIVATE) && (CREATAIDE == 1)) {
1634                 qrbuf.QRroomaide = CC->user.usernum;
1635         } else {
1636                 qrbuf.QRroomaide = (-1L);
1637         }
1638
1639         /*
1640          * If the caller is only interested in testing whether this will work,
1641          * return now without creating the room.
1642          */
1643         if (!really_create) return (qrbuf.QRflags);
1644
1645         qrbuf.QRnumber = get_new_room_number();
1646         qrbuf.QRhighest = 0L;   /* No messages in this room yet */
1647         time(&qrbuf.QRgen);     /* Use a timestamp as the generation number */
1648         qrbuf.QRfloor = new_room_floor;
1649
1650         /* save what we just did... */
1651         putroom(&qrbuf);
1652
1653         /* bump the reference count on whatever floor the room is on */
1654         lgetfloor(&flbuf, (int) qrbuf.QRfloor);
1655         flbuf.f_ref_count = flbuf.f_ref_count + 1;
1656         lputfloor(&flbuf, (int) qrbuf.QRfloor);
1657
1658         /* Grant the creator access to the room unless the avoid_access
1659          * parameter was specified.
1660          */
1661         if (avoid_access == 0) {
1662                 lgetuser(&CC->user, CC->curr_user);
1663                 CtdlGetRelationship(&vbuf, &CC->user, &qrbuf);
1664                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
1665                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
1666                 CtdlSetRelationship(&vbuf, &CC->user, &qrbuf);
1667                 lputuser(&CC->user);
1668         }
1669
1670         /* resume our happy day */
1671         return (qrbuf.QRflags);
1672 }
1673
1674
1675 /*
1676  * create a new room
1677  */
1678 void cmd_cre8(char *args)
1679 {
1680         int cre8_ok;
1681         char new_room_name[SIZ];
1682         int new_room_type;
1683         char new_room_pass[SIZ];
1684         int new_room_floor;
1685         char aaa[SIZ];
1686         unsigned newflags;
1687         struct floor *fl;
1688         int avoid_access = 0;
1689
1690         cre8_ok = extract_int(args, 0);
1691         extract(new_room_name, args, 1);
1692         new_room_name[ROOMNAMELEN - 1] = 0;
1693         new_room_type = extract_int(args, 2);
1694         extract(new_room_pass, args, 3);
1695         avoid_access = extract_int(args, 5);
1696         new_room_pass[9] = 0;
1697         new_room_floor = 0;
1698
1699         if ((strlen(new_room_name) == 0) && (cre8_ok == 1)) {
1700                 cprintf("%d Invalid room name.\n", ERROR + ILLEGAL_VALUE);
1701                 return;
1702         }
1703
1704         if (!strcasecmp(new_room_name, MAILROOM)) {
1705                 cprintf("%d '%s' already exists.\n",
1706                         ERROR + ALREADY_EXISTS, new_room_name);
1707                 return;
1708         }
1709
1710         if (num_parms(args) >= 5) {
1711                 fl = cgetfloor(extract_int(args, 4));
1712                 if (fl == NULL) {
1713                         cprintf("%d Invalid floor number.\n",
1714                                 ERROR + INVALID_FLOOR_OPERATION);
1715                         return;
1716                 }
1717                 else if ((fl->f_flags & F_INUSE) == 0) {
1718                         cprintf("%d Invalid floor number.\n",
1719                                 ERROR + INVALID_FLOOR_OPERATION);
1720                         return;
1721                 } else {
1722                         new_room_floor = extract_int(args, 4);
1723                 }
1724         }
1725
1726         if (CtdlAccessCheck(ac_logged_in)) return;
1727
1728         if (CC->user.axlevel < config.c_createax) {
1729                 cprintf("%d You need higher access to create rooms.\n",
1730                         ERROR + HIGHER_ACCESS_REQUIRED);
1731                 return;
1732         }
1733
1734         if ((strlen(new_room_name) == 0) && (cre8_ok == 0)) {
1735                 cprintf("%d Ok to create rooms.\n", CIT_OK);
1736                 return;
1737         }
1738
1739         if ((new_room_type < 0) || (new_room_type > 5)) {
1740                 cprintf("%d Invalid room type.\n", ERROR + ILLEGAL_VALUE);
1741                 return;
1742         }
1743
1744         if (new_room_type == 5) {
1745                 if ((config.c_aide_mailboxes == 0)
1746                    || (CC->user.axlevel < 6)) {
1747                         cprintf("%d Higher access required\n",
1748                                 ERROR + HIGHER_ACCESS_REQUIRED);
1749                         return;
1750                 }
1751         }
1752
1753         /* Check to make sure the requested room name doesn't already exist */
1754         newflags = create_room(new_room_name,
1755                                 new_room_type, new_room_pass, new_room_floor,
1756                                 0, avoid_access);
1757         if (newflags == 0) {
1758                 cprintf("%d '%s' already exists.\n",
1759                         ERROR + ALREADY_EXISTS, new_room_name);
1760                 return;
1761         }
1762
1763         if (cre8_ok == 0) {
1764                 cprintf("%d OK to create '%s'\n", CIT_OK, new_room_name);
1765                 return;
1766         }
1767
1768         /* If we reach this point, the room needs to be created. */
1769
1770         newflags = create_room(new_room_name,
1771                            new_room_type, new_room_pass, new_room_floor, 1, 0);
1772
1773         /* post a message in Aide> describing the new room */
1774         safestrncpy(aaa, new_room_name, sizeof aaa);
1775         strcat(aaa, "> created by ");
1776         strcat(aaa, CC->user.fullname);
1777         if (newflags & QR_MAILBOX)
1778                 strcat(aaa, " [personal]");
1779         else if (newflags & QR_PRIVATE)
1780                 strcat(aaa, " [private]");
1781         if (newflags & QR_GUESSNAME)
1782                 strcat(aaa, "[guessname] ");
1783         if (newflags & QR_PASSWORDED) {
1784                 strcat(aaa, "\n Password: ");
1785                 strcat(aaa, new_room_pass);
1786         }
1787         strcat(aaa, "\n");
1788         aide_message(aaa);
1789
1790         cprintf("%d '%s' has been created.\n", CIT_OK, new_room_name);
1791 }
1792
1793
1794
1795 void cmd_einf(char *ok)
1796 {                               /* enter info file for current room */
1797         FILE *fp;
1798         char infofilename[SIZ];
1799         char buf[SIZ];
1800
1801         if (CtdlAccessCheck(ac_room_aide)) return;
1802
1803         if (atoi(ok) == 0) {
1804                 cprintf("%d Ok.\n", CIT_OK);
1805                 return;
1806         }
1807         assoc_file_name(infofilename, sizeof infofilename, &CC->room, "info");
1808         lprintf(CTDL_DEBUG, "opening\n");
1809         fp = fopen(infofilename, "w");
1810         lprintf(CTDL_DEBUG, "checking\n");
1811         if (fp == NULL) {
1812                 cprintf("%d Cannot open %s: %s\n",
1813                   ERROR + INTERNAL_ERROR, infofilename, strerror(errno));
1814                 return;
1815         }
1816         cprintf("%d Send info...\n", SEND_LISTING);
1817
1818         do {
1819                 client_gets(buf);
1820                 if (strcmp(buf, "000"))
1821                         fprintf(fp, "%s\n", buf);
1822         } while (strcmp(buf, "000"));
1823         fclose(fp);
1824
1825         /* now update the room index so people will see our new info */
1826         lgetroom(&CC->room, CC->room.QRname);           /* lock so no one steps on us */
1827         CC->room.QRinfo = CC->room.QRhighest + 1L;
1828         lputroom(&CC->room);
1829 }
1830
1831
1832 /*
1833  * cmd_lflr()   -  List all known floors
1834  */
1835 void cmd_lflr(void)
1836 {
1837         int a;
1838         struct floor flbuf;
1839
1840         if (CtdlAccessCheck(ac_logged_in)) return;
1841
1842         cprintf("%d Known floors:\n", LISTING_FOLLOWS);
1843
1844         for (a = 0; a < MAXFLOORS; ++a) {
1845                 getfloor(&flbuf, a);
1846                 if (flbuf.f_flags & F_INUSE) {
1847                         cprintf("%d|%s|%d\n",
1848                                 a,
1849                                 flbuf.f_name,
1850                                 flbuf.f_ref_count);
1851                 }
1852         }
1853         cprintf("000\n");
1854 }
1855
1856
1857
1858 /*
1859  * create a new floor
1860  */
1861 void cmd_cflr(char *argbuf)
1862 {
1863         char new_floor_name[SIZ];
1864         struct floor flbuf;
1865         int cflr_ok;
1866         int free_slot = (-1);
1867         int a;
1868
1869         extract(new_floor_name, argbuf, 0);
1870         cflr_ok = extract_int(argbuf, 1);
1871
1872         if (CtdlAccessCheck(ac_aide)) return;
1873
1874         if (strlen(new_floor_name) == 0) {
1875                 cprintf("%d Blank floor name not allowed.\n",
1876                         ERROR + ILLEGAL_VALUE);
1877                 return;
1878         }
1879
1880         for (a = 0; a < MAXFLOORS; ++a) {
1881                 getfloor(&flbuf, a);
1882
1883                 /* note any free slots while we're scanning... */
1884                 if (((flbuf.f_flags & F_INUSE) == 0)
1885                     && (free_slot < 0))
1886                         free_slot = a;
1887
1888                 /* check to see if it already exists */
1889                 if ((!strcasecmp(flbuf.f_name, new_floor_name))
1890                     && (flbuf.f_flags & F_INUSE)) {
1891                         cprintf("%d Floor '%s' already exists.\n",
1892                                 ERROR + ALREADY_EXISTS,
1893                                 flbuf.f_name);
1894                         return;
1895                 }
1896         }
1897
1898         if (free_slot < 0) {
1899                 cprintf("%d There is no space available for a new floor.\n",
1900                         ERROR + INVALID_FLOOR_OPERATION);
1901                 return;
1902         }
1903         if (cflr_ok == 0) {
1904                 cprintf("%d ok to create...\n", CIT_OK);
1905                 return;
1906         }
1907         lgetfloor(&flbuf, free_slot);
1908         flbuf.f_flags = F_INUSE;
1909         flbuf.f_ref_count = 0;
1910         safestrncpy(flbuf.f_name, new_floor_name, sizeof flbuf.f_name);
1911         lputfloor(&flbuf, free_slot);
1912         cprintf("%d %d\n", CIT_OK, free_slot);
1913 }
1914
1915
1916
1917 /*
1918  * delete a floor
1919  */
1920 void cmd_kflr(char *argbuf)
1921 {
1922         struct floor flbuf;
1923         int floor_to_delete;
1924         int kflr_ok;
1925         int delete_ok;
1926
1927         floor_to_delete = extract_int(argbuf, 0);
1928         kflr_ok = extract_int(argbuf, 1);
1929
1930         if (CtdlAccessCheck(ac_aide)) return;
1931
1932         lgetfloor(&flbuf, floor_to_delete);
1933
1934         delete_ok = 1;
1935         if ((flbuf.f_flags & F_INUSE) == 0) {
1936                 cprintf("%d Floor %d not in use.\n",
1937                         ERROR + INVALID_FLOOR_OPERATION, floor_to_delete);
1938                 delete_ok = 0;
1939         } else {
1940                 if (flbuf.f_ref_count != 0) {
1941                         cprintf("%d Cannot delete; floor contains %d rooms.\n",
1942                                 ERROR + INVALID_FLOOR_OPERATION,
1943                                 flbuf.f_ref_count);
1944                         delete_ok = 0;
1945                 } else {
1946                         if (kflr_ok == 1) {
1947                                 cprintf("%d Ok\n", CIT_OK);
1948                         } else {
1949                                 cprintf("%d Ok to delete...\n", CIT_OK);
1950                         }
1951
1952                 }
1953
1954         }
1955
1956         if ((delete_ok == 1) && (kflr_ok == 1))
1957                 flbuf.f_flags = 0;
1958         lputfloor(&flbuf, floor_to_delete);
1959 }
1960
1961 /*
1962  * edit a floor
1963  */
1964 void cmd_eflr(char *argbuf)
1965 {
1966         struct floor flbuf;
1967         int floor_num;
1968         int np;
1969
1970         np = num_parms(argbuf);
1971         if (np < 1) {
1972                 cprintf("%d Usage error.\n", ERROR + ILLEGAL_VALUE);
1973                 return;
1974         }
1975
1976         if (CtdlAccessCheck(ac_aide)) return;
1977
1978         floor_num = extract_int(argbuf, 0);
1979         lgetfloor(&flbuf, floor_num);
1980         if ((flbuf.f_flags & F_INUSE) == 0) {
1981                 lputfloor(&flbuf, floor_num);
1982                 cprintf("%d Floor %d is not in use.\n",
1983                         ERROR + INVALID_FLOOR_OPERATION, floor_num);
1984                 return;
1985         }
1986         if (np >= 2)
1987                 extract(flbuf.f_name, argbuf, 1);
1988         lputfloor(&flbuf, floor_num);
1989
1990         cprintf("%d Ok\n", CIT_OK);
1991 }