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