citadel/user_ops.c

   1 /* $Id$ */
   2
   3 /* needed to properly enable crypt() stuff on some systems */
   4 #define _XOPEN_SOURCE
   5 /* needed for str[n]casecmp() on some systems if the above is defined */
   6 #define _XOPEN_SOURCE_EXTENDED
   7 /* needed to enable threads on some systems if the above are defined */
   8 #define _POSIX_C_SOURCE 199506L
   9
  10 #include <stdlib.h>
  11 #include <unistd.h>
  12 #include <stdio.h>
  13 #include <fcntl.h>
  14 #include <signal.h>
  15 #include <pwd.h>
  16 #include <sys/types.h>
  17 #include <sys/time.h>
  18 #include <string.h>
  19 #include <syslog.h>
  20 #include <limits.h>
  21 #include <pthread.h>
  22 #include "citadel.h"
  23 #include "server.h"
  24 #include "database.h"
  25 #include "user_ops.h"
  26 #include "sysdep_decls.h"
  27 #include "support.h"
  28 #include "room_ops.h"
  29 #include "logging.h"
  30 #include "file_ops.h"
  31 #include "control.h"
  32 #include "msgbase.h"
  33 #include "config.h"
  34 #include "dynloader.h"
  35 #include "sysdep.h"
  36 #include "tools.h"
  37
  38
  39 /*
  40  * getuser()  -  retrieve named user into supplied buffer.
  41  *               returns 0 on success
  42  */
  43 int getuser(struct usersupp *usbuf, char name[]) {
  44
  45         char lowercase_name[32];
  46         int a;
  47         struct cdbdata *cdbus;
  48
  49         bzero(usbuf, sizeof(struct usersupp));
  50         for (a=0; a<=strlen(name); ++a) {
  51                 lowercase_name[a] = tolower(name[a]);
  52                 }
  53
  54         cdbus = cdb_fetch(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
  55         if (cdbus == NULL) {
  56                 return(1);      /* user not found */
  57                 }
  58
  59         memcpy(usbuf, cdbus->ptr,
  60                 ( (cdbus->len > sizeof(struct usersupp)) ?
  61                 sizeof(struct usersupp) : cdbus->len) );
  62         cdb_free(cdbus);
  63         return(0);
  64         }
  65
  66
  67 /*
  68  * lgetuser()  -  same as getuser() but locks the record
  69  */
  70 int lgetuser(struct usersupp *usbuf, char *name)
  71 {
  72         int retcode;
  73
  74         retcode = getuser(usbuf,name);
  75         if (retcode == 0) {
  76                 begin_critical_section(S_USERSUPP);
  77                 }
  78         return(retcode);
  79         }
  80
  81
  82 /*
  83  * putuser()  -  write user buffer into the correct place on disk
  84  */
  85 void putuser(struct usersupp *usbuf, char *name)
  86 {
  87         char lowercase_name[32];
  88         int a;
  89
  90         for (a=0; a<=strlen(name); ++a) {
  91                 lowercase_name[a] = tolower(name[a]);
  92                 }
  93
  94         cdb_store(CDB_USERSUPP,
  95                 lowercase_name, strlen(lowercase_name),
  96                 usbuf, sizeof(struct usersupp));
  97
  98         }
  99
 100
 101 /*
 102  * lputuser()  -  same as putuser() but locks the record
 103  */
 104 void lputuser(struct usersupp *usbuf, char *name) {
 105         putuser(usbuf,name);
 106         end_critical_section(S_USERSUPP);
 107         }
 108
 109 /*
 110  * Index-generating function used by Ctdl[Get|Set]Relationship
 111  */
 112 int GenerateRelationshipIndex(  char *IndexBuf,
 113                                 long RoomID,
 114                                 long RoomGen,
 115                                 long UserID) {
 116
 117         struct {
 118                 long iRoomID;
 119                 long iRoomGen;
 120                 long iUserID;
 121                 } TheIndex;
 122
 123         TheIndex.iRoomID = RoomID;
 124         TheIndex.iRoomGen = RoomGen;
 125         TheIndex.iUserID = UserID;
 126
 127         memcpy(IndexBuf, &TheIndex, sizeof(TheIndex));
 128         return(sizeof(TheIndex));
 129         }
 130
 131 /*
 132  * Define a relationship between a user and a room
 133  */
 134 void CtdlSetRelationship(struct visit *newvisit,
 135                         struct usersupp *rel_user,
 136                         struct quickroom *rel_room) {
 137
 138         char IndexBuf[32];
 139         int IndexLen;
 140
 141         /* We don't use these in Citadel because they're implicit by the
 142          * index, but they must be present if the database is exported.
 143          */
 144         newvisit->v_roomnum = rel_room->QRnumber;
 145         newvisit->v_roomgen = rel_room->QRgen;
 146         newvisit->v_usernum = rel_user->usernum;
 147
 148         /* Generate an index */
 149         IndexLen = GenerateRelationshipIndex(IndexBuf,
 150                 rel_room->QRnumber,
 151                 rel_room->QRgen,
 152                 rel_user->usernum);
 153
 154         /* Store the record */
 155         cdb_store(CDB_VISIT, IndexBuf, IndexLen,
 156                 newvisit, sizeof(struct visit)
 157                 );
 158         }
 159
 160 /*
 161  * Locate a relationship between a user and a room
 162  */
 163 void CtdlGetRelationship(struct visit *vbuf,
 164                         struct usersupp *rel_user,
 165                         struct quickroom *rel_room) {
 166
 167         char IndexBuf[32];
 168         int IndexLen;
 169         struct cdbdata *cdbvisit;
 170
 171         /* Generate an index */
 172         IndexLen = GenerateRelationshipIndex(IndexBuf,
 173                 rel_room->QRnumber,
 174                 rel_room->QRgen,
 175                 rel_user->usernum);
 176
 177         /* Clear out the buffer */
 178         bzero(vbuf, sizeof(struct visit));
 179
 180         cdbvisit = cdb_fetch(CDB_VISIT, IndexBuf, IndexLen);
 181         if (cdbvisit != NULL) {
 182                 memcpy(vbuf, cdbvisit->ptr,
 183                         ( (cdbvisit->len > sizeof(struct visit)) ?
 184                         sizeof(struct visit) : cdbvisit->len) );
 185                 cdb_free(cdbvisit);
 186                 return;
 187                 }
 188         }
 189
 190
 191 void MailboxName(char *buf, struct usersupp *who, char *prefix) {
 192         sprintf(buf, "%010ld.%s", who->usernum, prefix);
 193         }
 194
 195
 196 /*
 197  * Is the user currently logged in an Aide?
 198  */
 199 int is_aide(void) {
 200         if (CC->usersupp.axlevel >= 6) return(1);
 201         else return(0);
 202         }
 203
 204
 205 /*
 206  * Is the user currently logged in an Aide *or* the room aide for this room?
 207  */
 208 int is_room_aide(void) {
 209         if ( (CC->usersupp.axlevel >= 6)
 210            || (CC->quickroom.QRroomaide == CC->usersupp.usernum) ) {
 211                 return(1);
 212                 }
 213         else {
 214                 return(0);
 215                 }
 216         }
 217
 218 /*
 219  * getuserbynumber()  -  get user by number
 220  *                       returns 0 if user was found
 221  */
 222 int getuserbynumber(struct usersupp *usbuf, long int number)
 223 {
 224         struct cdbdata *cdbus;
 225
 226         cdb_rewind(CDB_USERSUPP);
 227
 228         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 229                 bzero(usbuf, sizeof(struct usersupp));
 230                 memcpy(usbuf, cdbus->ptr,
 231                         ( (cdbus->len > sizeof(struct usersupp)) ?
 232                         sizeof(struct usersupp) : cdbus->len) );
 233                 cdb_free(cdbus);
 234                 if (usbuf->usernum == number) {
 235                         return(0);
 236                         }
 237                 }
 238         return(-1);
 239         }
 240
 241
 242 /*
 243  * USER cmd
 244  */
 245 void cmd_user(char *cmdbuf)
 246 {
 247         char username[256];
 248         char autoname[256];
 249         int found_user = 0;
 250         struct passwd *p;
 251         int a;
 252
 253         extract(username,cmdbuf,0);
 254         username[25] = 0;
 255         strproc(username);
 256
 257         if ((CC->logged_in)) {
 258                 cprintf("%d Already logged in.\n",ERROR);
 259                 return;
 260                 }
 261
 262         found_user = getuser(&CC->usersupp,username);
 263         if (found_user != 0) {
 264                 p = (struct passwd *)getpwnam(username);
 265                 if (p!=NULL) {
 266                         strcpy(autoname,p->pw_gecos);
 267                         for (a=0; a<strlen(autoname); ++a)
 268                                 if (autoname[a]==',') autoname[a]=0;
 269                         found_user = getuser(&CC->usersupp,autoname);
 270                         }
 271                 }
 272         if (found_user == 0) {
 273                 if (((CC->nologin)) && (CC->usersupp.axlevel < 6)) {
 274                         cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 275                         ERROR+MAX_SESSIONS_EXCEEDED,
 276                         config.c_nodename,config.c_maxsessions);
 277                         }
 278                 else {
 279                         strcpy(CC->curr_user,CC->usersupp.fullname);
 280                         cprintf("%d Password required for %s\n",
 281                                 MORE_DATA,CC->curr_user);
 282                         }
 283                 }
 284         else {
 285                 cprintf("%d %s not found.\n",ERROR,username);
 286                 }
 287         }
 288
 289
 290
 291 /*
 292  * session startup code which is common to both cmd_pass() and cmd_newu()
 293  */
 294 void session_startup(void) {
 295         syslog(LOG_NOTICE,"user <%s> logged in",CC->curr_user);
 296
 297         lgetuser(&CC->usersupp,CC->curr_user);
 298         ++(CC->usersupp.timescalled);
 299         CC->fake_username[0] = '\0';
 300         CC->fake_postname[0] = '\0';
 301         CC->fake_hostname[0] = '\0';
 302         CC->fake_roomname[0] = '\0';
 303         CC->last_pager[0] = '\0';
 304         time(&CC->usersupp.lastcall);
 305
 306         /* If this user's name is the name of the system administrator
 307          * (as specified in setup), automatically assign access level 6.
 308          */
 309         if (!strcasecmp(CC->usersupp.fullname, config.c_sysadm)) {
 310                 CC->usersupp.axlevel = 6;
 311                 }
 312
 313         lputuser(&CC->usersupp,CC->curr_user);
 314
 315         /* Run any cleanup routines registered by loadable modules */
 316         PerformSessionHooks(EVT_LOGIN);
 317
 318         cprintf("%d %s|%d|%d|%d|%u|%ld\n",OK,CC->usersupp.fullname,CC->usersupp.axlevel,
 319                 CC->usersupp.timescalled,CC->usersupp.posted,CC->usersupp.flags,
 320                 CC->usersupp.usernum);
 321         usergoto(BASEROOM,0);           /* Enter the lobby */
 322         rec_log(CL_LOGIN,CC->curr_user);
 323         }
 324
 325
 326 /*
 327  * misc things to be taken care of when a user is logged out
 328  */
 329 void logout(struct CitContext *who)
 330 {
 331         who->logged_in = 0;
 332         if (who->download_fp != NULL) {
 333                 fclose(who->download_fp);
 334                 who->download_fp = NULL;
 335                 }
 336         if (who->upload_fp != NULL) {
 337                 abort_upl(who);
 338                 }
 339
 340         /* Do modular stuff... */
 341         PerformSessionHooks(EVT_LOGOUT);
 342         }
 343
 344
 345 void cmd_pass(char *buf)
 346 {
 347         char password[256];
 348         int code;
 349         struct passwd *p;
 350
 351         extract(password,buf,0);
 352
 353         if ((CC->logged_in)) {
 354                 cprintf("%d Already logged in.\n",ERROR);
 355                 return;
 356                 }
 357         if (!strcmp(CC->curr_user,"")) {
 358                 cprintf("%d You must send a name with USER first.\n",ERROR);
 359                 return;
 360                 }
 361         if (getuser(&CC->usersupp,CC->curr_user)) {
 362                 cprintf("%d Can't find user record!\n",ERROR+INTERNAL_ERROR);
 363                 return;
 364                 }
 365
 366         code = (-1);
 367         if (CC->usersupp.USuid == BBSUID) {
 368                 strproc(password);
 369                 strproc(CC->usersupp.password);
 370                 code = strcasecmp(CC->usersupp.password,password);
 371                 }
 372         else {
 373                 p = (struct passwd *)getpwuid(CC->usersupp.USuid);
 374 #ifdef ENABLE_AUTOLOGIN
 375                 if (p!=NULL) {
 376                         if (!strcmp(p->pw_passwd,
 377                            (char *)crypt(password,p->pw_passwd))) {
 378                                 code = 0;
 379                                 lgetuser(&CC->usersupp, CC->curr_user);
 380                                 strcpy(CC->usersupp.password, password);
 381                                 lputuser(&CC->usersupp, CC->curr_user);
 382                                 }
 383                         }
 384 #endif
 385                 }
 386
 387         if (!code) {
 388                 (CC->logged_in) = 1;
 389                 session_startup();
 390                 }
 391         else {
 392                 cprintf("%d Wrong password.\n",ERROR);
 393                 rec_log(CL_BADPW,CC->curr_user);
 394                 }
 395         }
 396
 397
 398 /*
 399  * Delete a user record *and* all of its related resources.
 400  */
 401 int purge_user(char pname[]) {
 402         char filename[64];
 403         char mailboxname[ROOMNAMELEN];
 404         struct usersupp usbuf;
 405         struct quickroom qrbuf;
 406         char lowercase_name[32];
 407         int a;
 408         struct CitContext *ccptr;
 409         int user_is_logged_in = 0;
 410
 411         for (a=0; a<=strlen(pname); ++a) {
 412                 lowercase_name[a] = tolower(pname[a]);
 413                 }
 414
 415         if (getuser(&usbuf, pname) != 0) {
 416                 lprintf(5, "Cannot purge user <%s> - not found\n", pname);
 417                 return(ERROR+NO_SUCH_USER);
 418                 }
 419
 420         /* Don't delete a user who is currently logged in.  Instead, just
 421          * set the access level to 0, and let the account get swept up
 422          * during the next purge.
 423          */
 424         user_is_logged_in = 0;
 425         begin_critical_section(S_SESSION_TABLE);
 426         for (ccptr=ContextList; ccptr!=NULL; ccptr=ccptr->next) {
 427                 if (ccptr->usersupp.usernum == usbuf.usernum) {
 428                         user_is_logged_in = 1;
 429                         }
 430                 }
 431         end_critical_section(S_SESSION_TABLE);
 432         if (user_is_logged_in == 1) {
 433                 lprintf(5, "User <%s> is logged in; not deleting.\n", pname);
 434                 usbuf.axlevel = 0;
 435                 putuser(&usbuf, pname);
 436                 return(1);
 437                 }
 438
 439         lprintf(5, "Deleting user <%s>\n", pname);
 440
 441         /* Perform any purge functions registered by server extensions */
 442         PerformUserHooks(usbuf.fullname, usbuf.usernum, EVT_PURGEUSER);
 443
 444         /* delete any existing user/room relationships */
 445         cdb_delete(CDB_VISIT, &usbuf.usernum, sizeof(long));
 446
 447         /* Delete the user's mailbox and its contents */
 448         MailboxName(mailboxname, &usbuf, MAILROOM);
 449         if (getroom(&qrbuf, mailboxname)==0) {
 450                 delete_room(&qrbuf);
 451                 }
 452
 453         /* delete the userlog entry */
 454         cdb_delete(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
 455
 456         /* remove the user's bio file */
 457         sprintf(filename, "./bio/%ld", usbuf.usernum);
 458         unlink(filename);
 459
 460         /* remove the user's picture */
 461         sprintf(filename, "./userpics/%ld.gif", usbuf.usernum);
 462         unlink(filename);
 463
 464         return(0);
 465         }
 466
 467
 468 /*
 469  * create_user()  -  back end processing to create a new user
 470  */
 471 int create_user(char *newusername)
 472 {
 473         struct usersupp usbuf;
 474         int a;
 475         struct passwd *p = NULL;
 476         char username[64];
 477         char mailboxname[ROOMNAMELEN];
 478
 479         strcpy(username, newusername);
 480         strproc(username);
 481
 482 #ifdef ENABLE_AUTOLOGIN
 483         p = (struct passwd *)getpwnam(username);
 484 #endif
 485         if (p != NULL) {
 486                 strcpy(username, p->pw_gecos);
 487                 for (a=0; a<strlen(username); ++a) {
 488                         if (username[a] == ',') username[a] = 0;
 489                         }
 490                 CC->usersupp.USuid = p->pw_uid;
 491                 }
 492         else {
 493                 CC->usersupp.USuid = BBSUID;
 494                 }
 495
 496         if (!getuser(&usbuf,username)) {
 497                 return(ERROR+ALREADY_EXISTS);
 498                 }
 499
 500         strcpy(CC->curr_user,username);
 501         strcpy(CC->usersupp.fullname,username);
 502         strcpy(CC->usersupp.password,"");
 503         (CC->logged_in) = 1;
 504
 505         /* These are the default flags on new accounts */
 506         CC->usersupp.flags =
 507                 US_NEEDVALID|US_LASTOLD|US_DISAPPEAR|US_PAGINATOR|US_FLOORS;
 508
 509         CC->usersupp.timescalled = 0;
 510         CC->usersupp.posted = 0;
 511         CC->usersupp.axlevel = config.c_initax;
 512         CC->usersupp.USscreenwidth = 80;
 513         CC->usersupp.USscreenheight = 24;
 514         time(&CC->usersupp.lastcall);
 515         strcpy(CC->usersupp.USname, "");
 516         strcpy(CC->usersupp.USaddr, "");
 517         strcpy(CC->usersupp.UScity, "");
 518         strcpy(CC->usersupp.USstate, "");
 519         strcpy(CC->usersupp.USzip, "");
 520         strcpy(CC->usersupp.USphone, "");
 521
 522         /* fetch a new user number */
 523         CC->usersupp.usernum = get_new_user_number();
 524
 525         if (CC->usersupp.usernum == 1L) {
 526                 CC->usersupp.axlevel = 6;
 527                 }
 528
 529         /* add user to userlog */
 530         putuser(&CC->usersupp,CC->curr_user);
 531         if (getuser(&CC->usersupp,CC->curr_user)) {
 532                 return(ERROR+INTERNAL_ERROR);
 533                 }
 534
 535         /* give the user a private mailbox */
 536         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
 537         create_room(mailboxname, 4, "", 0);
 538
 539         rec_log(CL_NEWUSER,CC->curr_user);
 540         return(0);
 541         }
 542
 543
 544
 545
 546 /*
 547  * cmd_newu()  -  create a new user account
 548  */
 549 void cmd_newu(char *cmdbuf)
 550 {
 551         int a;
 552         char username[256];
 553
 554         if ((CC->logged_in)) {
 555                 cprintf("%d Already logged in.\n",ERROR);
 556                 return;
 557                 }
 558
 559         if ((CC->nologin)) {
 560                 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 561                 ERROR+MAX_SESSIONS_EXCEEDED,
 562                 config.c_nodename,config.c_maxsessions);
 563                 }
 564
 565         extract(username,cmdbuf,0);
 566         username[25] = 0;
 567         strproc(username);
 568
 569         if (strlen(username)==0) {
 570                 cprintf("%d You must supply a user name.\n",ERROR);
 571                 return;
 572                 }
 573
 574         a = create_user(username);
 575         if ((!strcasecmp(username, "bbs")) ||
 576             (!strcasecmp(username, "new")) ||
 577             (!strcasecmp(username, ".")))
 578         {
 579            cprintf("%d '%s' is an invalid login name.\n", ERROR);
 580            return;
 581         }
 582         if (a==ERROR+ALREADY_EXISTS) {
 583                 cprintf("%d '%s' already exists.\n",
 584                         ERROR+ALREADY_EXISTS,username);
 585                 return;
 586                 }
 587         else if (a==ERROR+INTERNAL_ERROR) {
 588                 cprintf("%d Internal error - user record disappeared?\n",
 589                         ERROR+INTERNAL_ERROR);
 590                 return;
 591                 }
 592         else if (a==0) {
 593                 session_startup();
 594                 }
 595         else {
 596                 cprintf("%d unknown error\n",ERROR);
 597                 }
 598         rec_log(CL_NEWUSER,CC->curr_user);
 599         }
 600
 601
 602
 603 /*
 604  * set password
 605  */
 606 void cmd_setp(char *new_pw)
 607 {
 608         if (!(CC->logged_in)) {
 609                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 610                 return;
 611                 }
 612         if (CC->usersupp.USuid != BBSUID) {
 613                 cprintf("%d Not allowed.  Use the 'passwd' command.\n",ERROR);
 614                 return;
 615                 }
 616         strproc(new_pw);
 617         if (strlen(new_pw)==0) {
 618                 cprintf("%d Password unchanged.\n",OK);
 619                 return;
 620                 }
 621         lgetuser(&CC->usersupp,CC->curr_user);
 622         strcpy(CC->usersupp.password,new_pw);
 623         lputuser(&CC->usersupp,CC->curr_user);
 624         cprintf("%d Password changed.\n",OK);
 625         rec_log(CL_PWCHANGE,CC->curr_user);
 626         PerformSessionHooks(EVT_SETPASS);
 627         }
 628
 629 /*
 630  * get user parameters
 631  */
 632 void cmd_getu(void) {
 633         if (!(CC->logged_in)) {
 634                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 635                 return;
 636                 }
 637         getuser(&CC->usersupp,CC->curr_user);
 638         cprintf("%d %d|%d|%d\n",
 639                 OK,
 640                 CC->usersupp.USscreenwidth,
 641                 CC->usersupp.USscreenheight,
 642                 (CC->usersupp.flags & US_USER_SET)
 643                 );
 644         }
 645
 646 /*
 647  * set user parameters
 648  */
 649 void cmd_setu(char *new_parms)
 650 {
 651
 652         if (num_parms(new_parms)!=3) {
 653                 cprintf("%d Usage error.\n",ERROR);
 654                 return;
 655                 }
 656         if (!(CC->logged_in)) {
 657                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 658                 return;
 659                 }
 660         lgetuser(&CC->usersupp,CC->curr_user);
 661         CC->usersupp.USscreenwidth = extract_int(new_parms,0);
 662         CC->usersupp.USscreenheight = extract_int(new_parms,1);
 663         CC->usersupp.flags = CC->usersupp.flags & (~US_USER_SET);
 664         CC->usersupp.flags = CC->usersupp.flags |
 665                 (extract_int(new_parms,2) & US_USER_SET);
 666         lputuser(&CC->usersupp,CC->curr_user);
 667         cprintf("%d Ok\n",OK);
 668         }
 669
 670 /*
 671  * set last read pointer
 672  */
 673 void cmd_slrp(char *new_ptr)
 674 {
 675         long newlr;
 676         struct visit vbuf;
 677
 678         if (!(CC->logged_in)) {
 679                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 680                 return;
 681                 }
 682
 683         if (!strncasecmp(new_ptr,"highest",7)) {
 684                 newlr = CC->quickroom.QRhighest;
 685                 }
 686         else {
 687                 newlr = atol(new_ptr);
 688                 }
 689
 690         lgetuser(&CC->usersupp, CC->curr_user);
 691
 692         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 693         vbuf.v_lastseen = newlr;
 694         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 695
 696         lputuser(&CC->usersupp, CC->curr_user);
 697         cprintf("%d %ld\n",OK,newlr);
 698         }
 699
 700
 701 /*
 702  * INVT and KICK commands
 703  */
 704 void cmd_invt_kick(char *iuser, int op)
 705                         /* user name */
 706         {               /* 1 = invite, 0 = kick out */
 707         struct usersupp USscratch;
 708         char bbb[256];
 709         struct visit vbuf;
 710
 711         if (!(CC->logged_in)) {
 712                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 713                 return;
 714                 }
 715
 716         if (is_room_aide()==0) {
 717                 cprintf("%d Higher access required.\n",
 718                         ERROR+HIGHER_ACCESS_REQUIRED);
 719                 return;
 720                 }
 721
 722         if (lgetuser(&USscratch,iuser)!=0) {
 723                 cprintf("%d No such user.\n",ERROR);
 724                 return;
 725                 }
 726
 727         CtdlGetRelationship(&vbuf, &USscratch, &CC->quickroom);
 728
 729         if (op==1) {
 730                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
 731                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
 732                 }
 733
 734         if (op==0) {
 735                 vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
 736                 vbuf.v_flags = vbuf.v_flags | V_FORGET | V_LOCKOUT;
 737                 }
 738
 739         CtdlSetRelationship(&vbuf, &USscratch, &CC->quickroom);
 740
 741         lputuser(&USscratch,iuser);
 742
 743         /* post a message in Aide> saying what we just did */
 744         sprintf(bbb,"%s %s %s> by %s",
 745                 iuser,
 746                 ((op == 1) ? "invited to" : "kicked out of"),
 747                 CC->quickroom.QRname,
 748                 CC->usersupp.fullname);
 749         aide_message(bbb);
 750
 751         cprintf("%d %s %s %s.\n",
 752                 OK, iuser,
 753                 ((op == 1) ? "invited to" : "kicked out of"),
 754                 CC->quickroom.QRname);
 755         return;
 756         }
 757
 758
 759 /*
 760  * forget (Zap) the current room
 761  */
 762 void cmd_forg(void) {
 763         struct visit vbuf;
 764
 765         if (!(CC->logged_in)) {
 766                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 767                 return;
 768                 }
 769
 770         if (is_aide()) {
 771                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 772                 return;
 773                 }
 774
 775         lgetuser(&CC->usersupp,CC->curr_user);
 776         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 777
 778         vbuf.v_flags = vbuf.v_flags | V_FORGET;
 779         vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
 780
 781         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 782         lputuser(&CC->usersupp,CC->curr_user);
 783         cprintf("%d Ok\n",OK);
 784         usergoto(BASEROOM, 0);
 785         }
 786
 787 /*
 788  * Get Next Unregistered User
 789  */
 790 void cmd_gnur(void) {
 791         struct cdbdata *cdbus;
 792         struct usersupp usbuf;
 793
 794         if (!(CC->logged_in)) {
 795                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 796                 return;
 797                 }
 798
 799         if (CC->usersupp.axlevel < 6) {
 800                 cprintf("%d Higher access required.\n",
 801                         ERROR+HIGHER_ACCESS_REQUIRED);
 802                 return;
 803                 }
 804
 805         if ((CitControl.MMflags&MM_VALID)==0) {
 806                 cprintf("%d There are no unvalidated users.\n",OK);
 807                 return;
 808                 }
 809
 810         /* There are unvalidated users.  Traverse the usersupp database,
 811          * and return the first user we find that needs validation.
 812          */
 813         cdb_rewind(CDB_USERSUPP);
 814         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 815                 bzero(&usbuf, sizeof(struct usersupp));
 816                 memcpy(&usbuf, cdbus->ptr,
 817                         ( (cdbus->len > sizeof(struct usersupp)) ?
 818                         sizeof(struct usersupp) : cdbus->len) );
 819                 cdb_free(cdbus);
 820                 if ((usbuf.flags & US_NEEDVALID)
 821                    &&(usbuf.axlevel > 0)) {
 822                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 823                         return;
 824                         }
 825                 }
 826
 827         /* If we get to this point, there are no more unvalidated users.
 828          * Therefore we clear the "users need validation" flag.
 829          */
 830
 831         begin_critical_section(S_CONTROL);
 832         get_control();
 833         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 834         put_control();
 835         end_critical_section(S_CONTROL);
 836         cprintf("%d *** End of registration.\n",OK);
 837
 838
 839         }
 840
 841
 842 /*
 843  * get registration info for a user
 844  */
 845 void cmd_greg(char *who)
 846 {
 847         struct usersupp usbuf;
 848         int a,b;
 849         char pbuf[32];
 850
 851         if (!(CC->logged_in)) {
 852                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 853                 return;
 854                 }
 855
 856         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 857
 858         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 859                 cprintf("%d Higher access required.\n",
 860                         ERROR+HIGHER_ACCESS_REQUIRED);
 861                 return;
 862                 }
 863
 864         if (getuser(&usbuf,who) != 0) {
 865                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 866                 return;
 867                 }
 868
 869         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 870         cprintf("%ld\n",usbuf.usernum);
 871         cprintf("%s\n",usbuf.password);
 872         cprintf("%s\n",usbuf.USname);
 873         cprintf("%s\n",usbuf.USaddr);
 874         cprintf("%s\n%s\n%s\n",
 875                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 876         strcpy(pbuf,usbuf.USphone);
 877         usbuf.USphone[0]=0;
 878         for (a=0; a<strlen(pbuf); ++a) {
 879                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 880                         b=strlen(usbuf.USphone);
 881                         usbuf.USphone[b]=pbuf[a];
 882                         usbuf.USphone[b+1]=0;
 883                         }
 884                 }
 885         while(strlen(usbuf.USphone)<10) {
 886                 strcpy(pbuf,usbuf.USphone);
 887                 strcpy(usbuf.USphone," ");
 888                 strcat(usbuf.USphone,pbuf);
 889                 }
 890
 891         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 892                 usbuf.USphone[0],usbuf.USphone[1],
 893                 usbuf.USphone[2],usbuf.USphone[3],
 894                 usbuf.USphone[4],usbuf.USphone[5],
 895                 usbuf.USphone[6],usbuf.USphone[7],
 896                 usbuf.USphone[8],usbuf.USphone[9]);
 897
 898         cprintf("%d\n",usbuf.axlevel);
 899         cprintf("%s\n",usbuf.USemail);
 900         cprintf("000\n");
 901         }
 902
 903 /*
 904  * validate a user
 905  */
 906 void cmd_vali(char *v_args)
 907 {
 908         char user[256];
 909         int newax;
 910         struct usersupp userbuf;
 911
 912         extract(user,v_args,0);
 913         newax = extract_int(v_args,1);
 914
 915         if (!(CC->logged_in)) {
 916                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 917                 return;
 918                 }
 919
 920         if (CC->usersupp.axlevel < 6) {
 921                 cprintf("%d Higher access required.\n",
 922                         ERROR+HIGHER_ACCESS_REQUIRED);
 923                 return;
 924                 }
 925
 926         if (lgetuser(&userbuf,user)!=0) {
 927                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 928                 return;
 929                 }
 930
 931         userbuf.axlevel = newax;
 932         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 933
 934         lputuser(&userbuf,user);
 935
 936         /* If the access level was set to zero, delete the user */
 937         if (newax == 0) {
 938                 if (purge_user(user)==0) {
 939                         cprintf("%d %s Deleted.\n", OK, userbuf.fullname);
 940                         return;
 941                         }
 942                 }
 943
 944         cprintf("%d ok\n",OK);
 945         }
 946
 947
 948
 949 /*
 950  *  Traverse the user file...
 951  */
 952 void ForEachUser(void (*CallBack)(struct usersupp *EachUser)) {
 953         struct usersupp usbuf;
 954         struct cdbdata *cdbus;
 955
 956         cdb_rewind(CDB_USERSUPP);
 957
 958         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 959                 bzero(&usbuf, sizeof(struct usersupp));
 960                 memcpy(&usbuf, cdbus->ptr,
 961                         ( (cdbus->len > sizeof(struct usersupp)) ?
 962                         sizeof(struct usersupp) : cdbus->len) );
 963                 cdb_free(cdbus);
 964                 (*CallBack)(&usbuf);
 965                 }
 966         }
 967
 968
 969 /*
 970  * List one user (this works with cmd_list)
 971  */
 972 void ListThisUser(struct usersupp *usbuf) {
 973         if (usbuf->axlevel > 0) {
 974                 if ((CC->usersupp.axlevel>=6)
 975                    ||((usbuf->flags&US_UNLISTED)==0)
 976                    ||((CC->internal_pgm))) {
 977                         cprintf("%s|%d|%ld|%ld|%d|%d|",
 978                                 usbuf->fullname,
 979                                 usbuf->axlevel,
 980                                 usbuf->usernum,
 981                                 usbuf->lastcall,
 982                                 usbuf->timescalled,
 983                                 usbuf->posted);
 984                         if (CC->usersupp.axlevel >= 6)
 985                                 cprintf("%s",usbuf->password);
 986                         cprintf("\n");
 987                         }
 988                 }
 989         }
 990
 991 /*
 992  *  List users
 993  */
 994 void cmd_list(void) {
 995         cprintf("%d \n",LISTING_FOLLOWS);
 996         ForEachUser(ListThisUser);
 997         cprintf("000\n");
 998         }
 999
1000
1001 /*
1002  * enter registration info
1003  */
1004 void cmd_regi(void) {
1005         int a,b,c;
1006         char buf[256];
1007
1008         char tmpname[256];
1009         char tmpaddr[256];
1010         char tmpcity[256];
1011         char tmpstate[256];
1012         char tmpzip[256];
1013         char tmpphone[256];
1014         char tmpemail[256];
1015
1016         if (!(CC->logged_in)) {
1017                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1018                 return;
1019                 }
1020
1021         strcpy(tmpname,"");
1022         strcpy(tmpaddr,"");
1023         strcpy(tmpcity,"");
1024         strcpy(tmpstate,"");
1025         strcpy(tmpzip,"");
1026         strcpy(tmpphone,"");
1027         strcpy(tmpemail,"");
1028
1029         cprintf("%d Send registration...\n",SEND_LISTING);
1030         a=0;
1031         while (client_gets(buf), strcmp(buf,"000")) {
1032                 if (a==0) strcpy(tmpname,buf);
1033                 if (a==1) strcpy(tmpaddr,buf);
1034                 if (a==2) strcpy(tmpcity,buf);
1035                 if (a==3) strcpy(tmpstate,buf);
1036                 if (a==4) {
1037                         for (c=0; c<strlen(buf); ++c) {
1038                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
1039                                         b=strlen(tmpzip);
1040                                         tmpzip[b]=buf[c];
1041                                         tmpzip[b+1]=0;
1042                                         }
1043                                 }
1044                         }
1045                 if (a==5) {
1046                         for (c=0; c<strlen(buf); ++c) {
1047                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
1048                                         b=strlen(tmpphone);
1049                                         tmpphone[b]=buf[c];
1050                                         tmpphone[b+1]=0;
1051                                         }
1052                                 }
1053                         }
1054                 if (a==6) strncpy(tmpemail,buf,31);
1055                 ++a;
1056                 }
1057
1058         tmpname[29]=0;
1059         tmpaddr[24]=0;
1060         tmpcity[14]=0;
1061         tmpstate[2]=0;
1062         tmpzip[9]=0;
1063         tmpphone[10]=0;
1064         tmpemail[31]=0;
1065
1066         lgetuser(&CC->usersupp,CC->curr_user);
1067         strcpy(CC->usersupp.USname,tmpname);
1068         strcpy(CC->usersupp.USaddr,tmpaddr);
1069         strcpy(CC->usersupp.UScity,tmpcity);
1070         strcpy(CC->usersupp.USstate,tmpstate);
1071         strcpy(CC->usersupp.USzip,tmpzip);
1072         strcpy(CC->usersupp.USphone,tmpphone);
1073         strcpy(CC->usersupp.USemail,tmpemail);
1074         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
1075         lputuser(&CC->usersupp,CC->curr_user);
1076
1077         /* set global flag calling for validation */
1078         begin_critical_section(S_CONTROL);
1079         get_control();
1080         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
1081         put_control();
1082         end_critical_section(S_CONTROL);
1083         }
1084
1085
1086 /*
1087  * assorted info we need to check at login
1088  */
1089 void cmd_chek(void) {
1090         int mail = 0;
1091         int regis = 0;
1092         int vali = 0;
1093
1094         if (!(CC->logged_in)) {
1095                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1096                 return;
1097                 }
1098
1099         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
1100         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
1101
1102         if (CC->usersupp.axlevel >= 6) {
1103                 get_control();
1104                 if (CitControl.MMflags&MM_VALID) vali = 1;
1105                 }
1106
1107
1108         /* check for mail */
1109         mail = NewMailCount();
1110
1111         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
1112         }
1113
1114
1115 /*
1116  * check to see if a user exists
1117  */
1118 void cmd_qusr(char *who)
1119 {
1120         struct usersupp usbuf;
1121
1122         if (getuser(&usbuf,who) == 0) {
1123                 cprintf("%d %s\n",OK,usbuf.fullname);
1124                 }
1125         else {
1126                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1127                 }
1128         }
1129
1130
1131 /*
1132  * enter user bio
1133  */
1134 void cmd_ebio(void) {
1135         char buf[256];
1136         FILE *fp;
1137
1138         if (!(CC->logged_in)) {
1139                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1140                 return;
1141                 }
1142
1143         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1144         fp = fopen(buf,"w");
1145         if (fp == NULL) {
1146                 cprintf("%d Cannot create file\n",ERROR);
1147                 return;
1148                 }
1149         cprintf("%d  \n",SEND_LISTING);
1150         while(client_gets(buf), strcmp(buf,"000")) {
1151                 fprintf(fp,"%s\n",buf);
1152                 }
1153         fclose(fp);
1154         }
1155
1156 /*
1157  * read user bio
1158  */
1159 void cmd_rbio(char *cmdbuf)
1160 {
1161         struct usersupp ruser;
1162         char buf[256];
1163         FILE *fp;
1164
1165         extract(buf,cmdbuf,0);
1166         if (getuser(&ruser,buf)!=0) {
1167                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1168                 return;
1169                 }
1170         sprintf(buf,"./bio/%ld",ruser.usernum);
1171
1172         fp = fopen(buf,"r");
1173         if (fp == NULL) {
1174                 cprintf("%d %s has no bio on file.\n",
1175                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1176                 return;
1177                 }
1178         cprintf("%d  \n",LISTING_FOLLOWS);
1179         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1180         fclose(fp);
1181         cprintf("000\n");
1182         }
1183
1184 /*
1185  * list of users who have entered bios
1186  */
1187 void cmd_lbio(void) {
1188         char buf[256];
1189         FILE *ls;
1190         struct usersupp usbuf;
1191
1192         ls=popen("cd ./bio; ls","r");
1193         if (ls==NULL) {
1194                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1195                 return;
1196                 }
1197
1198         cprintf("%d\n",LISTING_FOLLOWS);
1199         while (fgets(buf,255,ls)!=NULL)
1200                 if (getuserbynumber(&usbuf,atol(buf))==0)
1201                         cprintf("%s\n",usbuf.fullname);
1202         pclose(ls);
1203         cprintf("000\n");
1204         }
1205
1206
1207 /*
1208  * Administrative Get User Parameters
1209  */
1210 void cmd_agup(char *cmdbuf) {
1211         struct usersupp usbuf;
1212         char requested_user[256];
1213
1214         if ( (CC->internal_pgm==0)
1215            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1216                 cprintf("%d Higher access required.\n",
1217                         ERROR + HIGHER_ACCESS_REQUIRED);
1218                 return;
1219                 }
1220
1221         extract(requested_user, cmdbuf, 0);
1222         if (getuser(&usbuf, requested_user) != 0) {
1223                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1224                 return;
1225                 }
1226
1227         cprintf("%d %s|%s|%u|%d|%d|%d|%ld|%ld|%d\n",
1228                 OK,
1229                 usbuf.fullname,
1230                 usbuf.password,
1231                 usbuf.flags,
1232                 usbuf.timescalled,
1233                 usbuf.posted,
1234                 (int)usbuf.axlevel,
1235                 usbuf.usernum,
1236                 usbuf.lastcall,
1237                 usbuf.USuserpurge);
1238         }
1239
1240
1241
1242 /*
1243  * Administrative Set User Parameters
1244  */
1245 void cmd_asup(char *cmdbuf) {
1246         struct usersupp usbuf;
1247         char requested_user[256];
1248         int np;
1249         int newax;
1250
1251         if ( (CC->internal_pgm==0)
1252            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1253                 cprintf("%d Higher access required.\n",
1254                         ERROR + HIGHER_ACCESS_REQUIRED);
1255                 return;
1256                 }
1257
1258         extract(requested_user, cmdbuf, 0);
1259         if (lgetuser(&usbuf, requested_user) != 0) {
1260                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1261                 return;
1262                 }
1263
1264         np = num_parms(cmdbuf);
1265         if (np > 1) extract(usbuf.password, cmdbuf, 1);
1266         if (np > 2) usbuf.flags = extract_int(cmdbuf, 2);
1267         if (np > 3) usbuf.timescalled = extract_int(cmdbuf, 3);
1268         if (np > 4) usbuf.posted = extract_int(cmdbuf, 4);
1269         if (np > 5) {
1270                 newax = extract_int(cmdbuf, 5);
1271                 if ((newax >=0) && (newax <= 6)) {
1272                         usbuf.axlevel = extract_int(cmdbuf, 5);
1273                         }
1274                 }
1275         if (np > 7) {
1276                 usbuf.lastcall = extract_long(cmdbuf, 7);
1277                 }
1278         if (np > 8) {
1279                 usbuf.USuserpurge = extract_int(cmdbuf, 8);
1280                 }
1281
1282         lputuser(&usbuf, requested_user);
1283         if (usbuf.axlevel == 0) {
1284                 if (purge_user(requested_user)==0) {
1285                         cprintf("%d %s deleted.\n", OK, requested_user);
1286                         }
1287                 }
1288         cprintf("%d Ok\n", OK);
1289         }
1290
1291
1292 /*
1293  * Count the number of new mail messages the user has
1294  */
1295 int NewMailCount() {
1296         int num_newmsgs = 0;
1297         int a;
1298         char mailboxname[32];
1299         struct quickroom mailbox;
1300         struct visit vbuf;
1301
1302         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
1303         if (getroom(&mailbox, mailboxname)!=0) return(0);
1304         CtdlGetRelationship(&vbuf, &CC->usersupp, &mailbox);
1305
1306         get_msglist(&mailbox);
1307         for (a=0; a<CC->num_msgs; ++a) {
1308                 if (MessageFromList(a)>0L) {
1309                         if (MessageFromList(a) > vbuf.v_lastseen) {
1310                                 ++num_newmsgs;
1311                                 }
1312                         }
1313                 }
1314
1315         return(num_newmsgs);
1316         }