citadel/user_ops.c

   1 /* $Id$ */
   2
   3 #ifndef _SGI_SOURCE
   4 /* needed to properly enable crypt() stuff on some systems */
   5 #define _XOPEN_SOURCE
   6 /* needed for str[n]casecmp() on some systems if the above is defined */
   7 #define _XOPEN_SOURCE_EXTENDED
   8 /* needed to enable threads on some systems if the above are defined */
   9 #define _POSIX_C_SOURCE 199506L
  10 #endif
  11
  12 #include <stdlib.h>
  13 #include <unistd.h>
  14 #include <stdio.h>
  15 #include <fcntl.h>
  16 #include <signal.h>
  17 #include <pwd.h>
  18 #include <sys/types.h>
  19 #include <sys/time.h>
  20 #include <string.h>
  21 #include <syslog.h>
  22 #include <limits.h>
  23 #include <pthread.h>
  24 #include "citadel.h"
  25 #include "server.h"
  26 #include "database.h"
  27 #include "user_ops.h"
  28 #include "sysdep_decls.h"
  29 #include "support.h"
  30 #include "room_ops.h"
  31 #include "logging.h"
  32 #include "file_ops.h"
  33 #include "control.h"
  34 #include "msgbase.h"
  35 #include "config.h"
  36 #include "dynloader.h"
  37 #include "sysdep.h"
  38 #include "tools.h"
  39
  40
  41 /*
  42  * getuser()  -  retrieve named user into supplied buffer.
  43  *               returns 0 on success
  44  */
  45 int getuser(struct usersupp *usbuf, char name[]) {
  46
  47         char lowercase_name[32];
  48         int a;
  49         struct cdbdata *cdbus;
  50
  51         memset(usbuf, 0, sizeof(struct usersupp));
  52         for (a=0; a<=strlen(name); ++a) {
  53                 lowercase_name[a] = tolower(name[a]);
  54                 }
  55
  56         cdbus = cdb_fetch(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
  57         if (cdbus == NULL) {
  58                 return(1);      /* user not found */
  59                 }
  60
  61         memcpy(usbuf, cdbus->ptr,
  62                 ( (cdbus->len > sizeof(struct usersupp)) ?
  63                 sizeof(struct usersupp) : cdbus->len) );
  64         cdb_free(cdbus);
  65         return(0);
  66         }
  67
  68
  69 /*
  70  * lgetuser()  -  same as getuser() but locks the record
  71  */
  72 int lgetuser(struct usersupp *usbuf, char *name)
  73 {
  74         int retcode;
  75
  76         retcode = getuser(usbuf,name);
  77         if (retcode == 0) {
  78                 begin_critical_section(S_USERSUPP);
  79                 }
  80         return(retcode);
  81         }
  82
  83
  84 /*
  85  * putuser()  -  write user buffer into the correct place on disk
  86  */
  87 void putuser(struct usersupp *usbuf, char *name)
  88 {
  89         char lowercase_name[32];
  90         int a;
  91
  92         for (a=0; a<=strlen(name); ++a) {
  93                 lowercase_name[a] = tolower(name[a]);
  94                 }
  95
  96         cdb_store(CDB_USERSUPP,
  97                 lowercase_name, strlen(lowercase_name),
  98                 usbuf, sizeof(struct usersupp));
  99
 100         }
 101
 102
 103 /*
 104  * lputuser()  -  same as putuser() but locks the record
 105  */
 106 void lputuser(struct usersupp *usbuf, char *name) {
 107         putuser(usbuf,name);
 108         end_critical_section(S_USERSUPP);
 109         }
 110
 111 /*
 112  * Index-generating function used by Ctdl[Get|Set]Relationship
 113  */
 114 int GenerateRelationshipIndex(  char *IndexBuf,
 115                                 long RoomID,
 116                                 long RoomGen,
 117                                 long UserID) {
 118
 119         struct {
 120                 long iRoomID;
 121                 long iRoomGen;
 122                 long iUserID;
 123                 } TheIndex;
 124
 125         TheIndex.iRoomID = RoomID;
 126         TheIndex.iRoomGen = RoomGen;
 127         TheIndex.iUserID = UserID;
 128
 129         memcpy(IndexBuf, &TheIndex, sizeof(TheIndex));
 130         return(sizeof(TheIndex));
 131         }
 132
 133 /*
 134  * Define a relationship between a user and a room
 135  */
 136 void CtdlSetRelationship(struct visit *newvisit,
 137                         struct usersupp *rel_user,
 138                         struct quickroom *rel_room) {
 139
 140         char IndexBuf[32];
 141         int IndexLen;
 142
 143         /* We don't use these in Citadel because they're implicit by the
 144          * index, but they must be present if the database is exported.
 145          */
 146         newvisit->v_roomnum = rel_room->QRnumber;
 147         newvisit->v_roomgen = rel_room->QRgen;
 148         newvisit->v_usernum = rel_user->usernum;
 149
 150         /* Generate an index */
 151         IndexLen = GenerateRelationshipIndex(IndexBuf,
 152                 rel_room->QRnumber,
 153                 rel_room->QRgen,
 154                 rel_user->usernum);
 155
 156         /* Store the record */
 157         cdb_store(CDB_VISIT, IndexBuf, IndexLen,
 158                 newvisit, sizeof(struct visit)
 159                 );
 160         }
 161
 162 /*
 163  * Locate a relationship between a user and a room
 164  */
 165 void CtdlGetRelationship(struct visit *vbuf,
 166                         struct usersupp *rel_user,
 167                         struct quickroom *rel_room) {
 168
 169         char IndexBuf[32];
 170         int IndexLen;
 171         struct cdbdata *cdbvisit;
 172
 173         /* Generate an index */
 174         IndexLen = GenerateRelationshipIndex(IndexBuf,
 175                 rel_room->QRnumber,
 176                 rel_room->QRgen,
 177                 rel_user->usernum);
 178
 179         /* Clear out the buffer */
 180         memset(vbuf, 0, sizeof(struct visit));
 181
 182         cdbvisit = cdb_fetch(CDB_VISIT, IndexBuf, IndexLen);
 183         if (cdbvisit != NULL) {
 184                 memcpy(vbuf, cdbvisit->ptr,
 185                         ( (cdbvisit->len > sizeof(struct visit)) ?
 186                         sizeof(struct visit) : cdbvisit->len) );
 187                 cdb_free(cdbvisit);
 188                 return;
 189                 }
 190         }
 191
 192
 193 void MailboxName(char *buf, struct usersupp *who, char *prefix) {
 194         sprintf(buf, "%010ld.%s", who->usernum, prefix);
 195         }
 196
 197
 198 /*
 199  * Is the user currently logged in an Aide?
 200  */
 201 int is_aide(void) {
 202         if (CC->usersupp.axlevel >= 6) return(1);
 203         else return(0);
 204         }
 205
 206
 207 /*
 208  * Is the user currently logged in an Aide *or* the room aide for this room?
 209  */
 210 int is_room_aide(void) {
 211         if ( (CC->usersupp.axlevel >= 6)
 212            || (CC->quickroom.QRroomaide == CC->usersupp.usernum) ) {
 213                 return(1);
 214                 }
 215         else {
 216                 return(0);
 217                 }
 218         }
 219
 220 /*
 221  * getuserbynumber()  -  get user by number
 222  *                       returns 0 if user was found
 223  */
 224 int getuserbynumber(struct usersupp *usbuf, long int number)
 225 {
 226         struct cdbdata *cdbus;
 227
 228         cdb_rewind(CDB_USERSUPP);
 229
 230         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 231                 memset(usbuf, 0, sizeof(struct usersupp));
 232                 memcpy(usbuf, cdbus->ptr,
 233                         ( (cdbus->len > sizeof(struct usersupp)) ?
 234                         sizeof(struct usersupp) : cdbus->len) );
 235                 cdb_free(cdbus);
 236                 if (usbuf->usernum == number) {
 237                         return(0);
 238                         }
 239                 }
 240         return(-1);
 241         }
 242
 243
 244 /*
 245  * USER cmd
 246  */
 247 void cmd_user(char *cmdbuf)
 248 {
 249         char username[256];
 250         char autoname[256];
 251         int found_user = 0;
 252         struct passwd *p;
 253         int a;
 254
 255         extract(username,cmdbuf,0);
 256         username[25] = 0;
 257         strproc(username);
 258
 259         if ((CC->logged_in)) {
 260                 cprintf("%d Already logged in.\n",ERROR);
 261                 return;
 262                 }
 263
 264         found_user = getuser(&CC->usersupp,username);
 265         if (found_user != 0) {
 266                 p = (struct passwd *)getpwnam(username);
 267                 if (p!=NULL) {
 268                         strcpy(autoname,p->pw_gecos);
 269                         for (a=0; a<strlen(autoname); ++a)
 270                                 if (autoname[a]==',') autoname[a]=0;
 271                         found_user = getuser(&CC->usersupp,autoname);
 272                         }
 273                 }
 274         if (found_user == 0) {
 275                 if (((CC->nologin)) && (CC->usersupp.axlevel < 6)) {
 276                         cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 277                         ERROR+MAX_SESSIONS_EXCEEDED,
 278                         config.c_nodename,config.c_maxsessions);
 279                         }
 280                 else {
 281                         strcpy(CC->curr_user,CC->usersupp.fullname);
 282                         cprintf("%d Password required for %s\n",
 283                                 MORE_DATA,CC->curr_user);
 284                         }
 285                 }
 286         else {
 287                 cprintf("%d %s not found.\n",ERROR,username);
 288                 }
 289         }
 290
 291
 292
 293 /*
 294  * session startup code which is common to both cmd_pass() and cmd_newu()
 295  */
 296 void session_startup(void) {
 297         syslog(LOG_NOTICE,"user <%s> logged in",CC->curr_user);
 298
 299         lgetuser(&CC->usersupp,CC->curr_user);
 300         ++(CC->usersupp.timescalled);
 301         CC->fake_username[0] = '\0';
 302         CC->fake_postname[0] = '\0';
 303         CC->fake_hostname[0] = '\0';
 304         CC->fake_roomname[0] = '\0';
 305         CC->last_pager[0] = '\0';
 306         time(&CC->usersupp.lastcall);
 307
 308         /* If this user's name is the name of the system administrator
 309          * (as specified in setup), automatically assign access level 6.
 310          */
 311         if (!strcasecmp(CC->usersupp.fullname, config.c_sysadm)) {
 312                 CC->usersupp.axlevel = 6;
 313                 }
 314
 315         lputuser(&CC->usersupp,CC->curr_user);
 316
 317         /* Run any cleanup routines registered by loadable modules */
 318         PerformSessionHooks(EVT_LOGIN);
 319
 320         cprintf("%d %s|%d|%d|%d|%u|%ld\n",OK,CC->usersupp.fullname,CC->usersupp.axlevel,
 321                 CC->usersupp.timescalled,CC->usersupp.posted,CC->usersupp.flags,
 322                 CC->usersupp.usernum);
 323         usergoto(BASEROOM,0);           /* Enter the lobby */
 324         rec_log(CL_LOGIN,CC->curr_user);
 325         }
 326
 327
 328 /*
 329  * misc things to be taken care of when a user is logged out
 330  */
 331 void logout(struct CitContext *who)
 332 {
 333         who->logged_in = 0;
 334         if (who->download_fp != NULL) {
 335                 fclose(who->download_fp);
 336                 who->download_fp = NULL;
 337                 }
 338         if (who->upload_fp != NULL) {
 339                 abort_upl(who);
 340                 }
 341
 342         /* Do modular stuff... */
 343         PerformSessionHooks(EVT_LOGOUT);
 344         }
 345
 346
 347 void cmd_pass(char *buf)
 348 {
 349         char password[256];
 350         int code;
 351         struct passwd *p;
 352
 353         extract(password,buf,0);
 354
 355         if ((CC->logged_in)) {
 356                 cprintf("%d Already logged in.\n",ERROR);
 357                 return;
 358                 }
 359         if (!strcmp(CC->curr_user,"")) {
 360                 cprintf("%d You must send a name with USER first.\n",ERROR);
 361                 return;
 362                 }
 363         if (getuser(&CC->usersupp,CC->curr_user)) {
 364                 cprintf("%d Can't find user record!\n",ERROR+INTERNAL_ERROR);
 365                 return;
 366                 }
 367
 368         code = (-1);
 369         if (CC->usersupp.USuid == BBSUID) {
 370                 strproc(password);
 371                 strproc(CC->usersupp.password);
 372                 code = strcasecmp(CC->usersupp.password,password);
 373                 }
 374         else {
 375                 p = (struct passwd *)getpwuid(CC->usersupp.USuid);
 376 #ifdef ENABLE_AUTOLOGIN
 377                 if (p!=NULL) {
 378                         if (!strcmp(p->pw_passwd,
 379                            (char *)crypt(password,p->pw_passwd))) {
 380                                 code = 0;
 381                                 lgetuser(&CC->usersupp, CC->curr_user);
 382                                 strcpy(CC->usersupp.password, password);
 383                                 lputuser(&CC->usersupp, CC->curr_user);
 384                                 }
 385                         }
 386 #endif
 387                 }
 388
 389         if (!code) {
 390                 (CC->logged_in) = 1;
 391                 session_startup();
 392                 }
 393         else {
 394                 cprintf("%d Wrong password.\n",ERROR);
 395                 rec_log(CL_BADPW,CC->curr_user);
 396                 }
 397         }
 398
 399
 400 /*
 401  * Delete a user record *and* all of its related resources.
 402  */
 403 int purge_user(char pname[]) {
 404         char filename[64];
 405         char mailboxname[ROOMNAMELEN];
 406         struct usersupp usbuf;
 407         struct quickroom qrbuf;
 408         char lowercase_name[32];
 409         int a;
 410         struct CitContext *ccptr;
 411         int user_is_logged_in = 0;
 412
 413         for (a=0; a<=strlen(pname); ++a) {
 414                 lowercase_name[a] = tolower(pname[a]);
 415                 }
 416
 417         if (getuser(&usbuf, pname) != 0) {
 418                 lprintf(5, "Cannot purge user <%s> - not found\n", pname);
 419                 return(ERROR+NO_SUCH_USER);
 420                 }
 421
 422         /* Don't delete a user who is currently logged in.  Instead, just
 423          * set the access level to 0, and let the account get swept up
 424          * during the next purge.
 425          */
 426         user_is_logged_in = 0;
 427         begin_critical_section(S_SESSION_TABLE);
 428         for (ccptr=ContextList; ccptr!=NULL; ccptr=ccptr->next) {
 429                 if (ccptr->usersupp.usernum == usbuf.usernum) {
 430                         user_is_logged_in = 1;
 431                         }
 432                 }
 433         end_critical_section(S_SESSION_TABLE);
 434         if (user_is_logged_in == 1) {
 435                 lprintf(5, "User <%s> is logged in; not deleting.\n", pname);
 436                 usbuf.axlevel = 0;
 437                 putuser(&usbuf, pname);
 438                 return(1);
 439                 }
 440
 441         lprintf(5, "Deleting user <%s>\n", pname);
 442
 443         /* Perform any purge functions registered by server extensions */
 444         PerformUserHooks(usbuf.fullname, usbuf.usernum, EVT_PURGEUSER);
 445
 446         /* delete any existing user/room relationships */
 447         cdb_delete(CDB_VISIT, &usbuf.usernum, sizeof(long));
 448
 449         /* Delete the user's mailbox and its contents */
 450         MailboxName(mailboxname, &usbuf, MAILROOM);
 451         if (getroom(&qrbuf, mailboxname)==0) {
 452                 delete_room(&qrbuf);
 453                 }
 454
 455         /* delete the userlog entry */
 456         cdb_delete(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
 457
 458         /* remove the user's bio file */
 459         sprintf(filename, "./bio/%ld", usbuf.usernum);
 460         unlink(filename);
 461
 462         /* remove the user's picture */
 463         sprintf(filename, "./userpics/%ld.gif", usbuf.usernum);
 464         unlink(filename);
 465
 466         return(0);
 467         }
 468
 469
 470 /*
 471  * create_user()  -  back end processing to create a new user
 472  */
 473 int create_user(char *newusername)
 474 {
 475         struct usersupp usbuf;
 476         int a;
 477         struct passwd *p = NULL;
 478         char username[64];
 479         char mailboxname[ROOMNAMELEN];
 480
 481         strcpy(username, newusername);
 482         strproc(username);
 483
 484 #ifdef ENABLE_AUTOLOGIN
 485         p = (struct passwd *)getpwnam(username);
 486 #endif
 487         if (p != NULL) {
 488                 strcpy(username, p->pw_gecos);
 489                 for (a=0; a<strlen(username); ++a) {
 490                         if (username[a] == ',') username[a] = 0;
 491                         }
 492                 CC->usersupp.USuid = p->pw_uid;
 493                 }
 494         else {
 495                 CC->usersupp.USuid = BBSUID;
 496                 }
 497
 498         if (!getuser(&usbuf,username)) {
 499                 return(ERROR+ALREADY_EXISTS);
 500                 }
 501
 502         strcpy(CC->curr_user,username);
 503         strcpy(CC->usersupp.fullname,username);
 504         strcpy(CC->usersupp.password,"");
 505         (CC->logged_in) = 1;
 506
 507         /* These are the default flags on new accounts */
 508         CC->usersupp.flags =
 509                 US_NEEDVALID|US_LASTOLD|US_DISAPPEAR|US_PAGINATOR|US_FLOORS;
 510
 511         CC->usersupp.timescalled = 0;
 512         CC->usersupp.posted = 0;
 513         CC->usersupp.axlevel = config.c_initax;
 514         CC->usersupp.USscreenwidth = 80;
 515         CC->usersupp.USscreenheight = 24;
 516         time(&CC->usersupp.lastcall);
 517         strcpy(CC->usersupp.USname, "");
 518         strcpy(CC->usersupp.USaddr, "");
 519         strcpy(CC->usersupp.UScity, "");
 520         strcpy(CC->usersupp.USstate, "");
 521         strcpy(CC->usersupp.USzip, "");
 522         strcpy(CC->usersupp.USphone, "");
 523
 524         /* fetch a new user number */
 525         CC->usersupp.usernum = get_new_user_number();
 526
 527         if (CC->usersupp.usernum == 1L) {
 528                 CC->usersupp.axlevel = 6;
 529                 }
 530
 531         /* add user to userlog */
 532         putuser(&CC->usersupp,CC->curr_user);
 533         if (getuser(&CC->usersupp,CC->curr_user)) {
 534                 return(ERROR+INTERNAL_ERROR);
 535                 }
 536
 537         /* give the user a private mailbox */
 538         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
 539         create_room(mailboxname, 4, "", 0);
 540
 541         rec_log(CL_NEWUSER,CC->curr_user);
 542         return(0);
 543         }
 544
 545
 546
 547
 548 /*
 549  * cmd_newu()  -  create a new user account
 550  */
 551 void cmd_newu(char *cmdbuf)
 552 {
 553         int a;
 554         char username[256];
 555
 556         if ((CC->logged_in)) {
 557                 cprintf("%d Already logged in.\n",ERROR);
 558                 return;
 559                 }
 560
 561         if ((CC->nologin)) {
 562                 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 563                 ERROR+MAX_SESSIONS_EXCEEDED,
 564                 config.c_nodename,config.c_maxsessions);
 565                 }
 566
 567         extract(username,cmdbuf,0);
 568         username[25] = 0;
 569         strproc(username);
 570
 571         if (strlen(username)==0) {
 572                 cprintf("%d You must supply a user name.\n",ERROR);
 573                 return;
 574                 }
 575
 576         a = create_user(username);
 577         if ((!strcasecmp(username, "bbs")) ||
 578             (!strcasecmp(username, "new")) ||
 579             (!strcasecmp(username, ".")))
 580         {
 581            cprintf("%d '%s' is an invalid login name.\n", ERROR);
 582            return;
 583         }
 584         if (a==ERROR+ALREADY_EXISTS) {
 585                 cprintf("%d '%s' already exists.\n",
 586                         ERROR+ALREADY_EXISTS,username);
 587                 return;
 588                 }
 589         else if (a==ERROR+INTERNAL_ERROR) {
 590                 cprintf("%d Internal error - user record disappeared?\n",
 591                         ERROR+INTERNAL_ERROR);
 592                 return;
 593                 }
 594         else if (a==0) {
 595                 session_startup();
 596                 }
 597         else {
 598                 cprintf("%d unknown error\n",ERROR);
 599                 }
 600         rec_log(CL_NEWUSER,CC->curr_user);
 601         }
 602
 603
 604
 605 /*
 606  * set password
 607  */
 608 void cmd_setp(char *new_pw)
 609 {
 610         if (!(CC->logged_in)) {
 611                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 612                 return;
 613                 }
 614         if (CC->usersupp.USuid != BBSUID) {
 615                 cprintf("%d Not allowed.  Use the 'passwd' command.\n",ERROR);
 616                 return;
 617                 }
 618         strproc(new_pw);
 619         if (strlen(new_pw)==0) {
 620                 cprintf("%d Password unchanged.\n",OK);
 621                 return;
 622                 }
 623         lgetuser(&CC->usersupp,CC->curr_user);
 624         strcpy(CC->usersupp.password,new_pw);
 625         lputuser(&CC->usersupp,CC->curr_user);
 626         cprintf("%d Password changed.\n",OK);
 627         rec_log(CL_PWCHANGE,CC->curr_user);
 628         PerformSessionHooks(EVT_SETPASS);
 629         }
 630
 631 /*
 632  * get user parameters
 633  */
 634 void cmd_getu(void) {
 635         if (!(CC->logged_in)) {
 636                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 637                 return;
 638                 }
 639         getuser(&CC->usersupp,CC->curr_user);
 640         cprintf("%d %d|%d|%d\n",
 641                 OK,
 642                 CC->usersupp.USscreenwidth,
 643                 CC->usersupp.USscreenheight,
 644                 (CC->usersupp.flags & US_USER_SET)
 645                 );
 646         }
 647
 648 /*
 649  * set user parameters
 650  */
 651 void cmd_setu(char *new_parms)
 652 {
 653
 654         if (num_parms(new_parms)!=3) {
 655                 cprintf("%d Usage error.\n",ERROR);
 656                 return;
 657                 }
 658         if (!(CC->logged_in)) {
 659                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 660                 return;
 661                 }
 662         lgetuser(&CC->usersupp,CC->curr_user);
 663         CC->usersupp.USscreenwidth = extract_int(new_parms,0);
 664         CC->usersupp.USscreenheight = extract_int(new_parms,1);
 665         CC->usersupp.flags = CC->usersupp.flags & (~US_USER_SET);
 666         CC->usersupp.flags = CC->usersupp.flags |
 667                 (extract_int(new_parms,2) & US_USER_SET);
 668         lputuser(&CC->usersupp,CC->curr_user);
 669         cprintf("%d Ok\n",OK);
 670         }
 671
 672 /*
 673  * set last read pointer
 674  */
 675 void cmd_slrp(char *new_ptr)
 676 {
 677         long newlr;
 678         struct visit vbuf;
 679
 680         if (!(CC->logged_in)) {
 681                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 682                 return;
 683                 }
 684
 685         if (!strncasecmp(new_ptr,"highest",7)) {
 686                 newlr = CC->quickroom.QRhighest;
 687                 }
 688         else {
 689                 newlr = atol(new_ptr);
 690                 }
 691
 692         lgetuser(&CC->usersupp, CC->curr_user);
 693
 694         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 695         vbuf.v_lastseen = newlr;
 696         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 697
 698         lputuser(&CC->usersupp, CC->curr_user);
 699         cprintf("%d %ld\n",OK,newlr);
 700         }
 701
 702
 703 /*
 704  * INVT and KICK commands
 705  */
 706 void cmd_invt_kick(char *iuser, int op)
 707                         /* user name */
 708         {               /* 1 = invite, 0 = kick out */
 709         struct usersupp USscratch;
 710         char bbb[256];
 711         struct visit vbuf;
 712
 713         if (!(CC->logged_in)) {
 714                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 715                 return;
 716                 }
 717
 718         if (is_room_aide()==0) {
 719                 cprintf("%d Higher access required.\n",
 720                         ERROR+HIGHER_ACCESS_REQUIRED);
 721                 return;
 722                 }
 723
 724         if (lgetuser(&USscratch,iuser)!=0) {
 725                 cprintf("%d No such user.\n",ERROR);
 726                 return;
 727                 }
 728
 729         CtdlGetRelationship(&vbuf, &USscratch, &CC->quickroom);
 730
 731         if (op==1) {
 732                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
 733                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
 734                 }
 735
 736         if (op==0) {
 737                 vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
 738                 vbuf.v_flags = vbuf.v_flags | V_FORGET | V_LOCKOUT;
 739                 }
 740
 741         CtdlSetRelationship(&vbuf, &USscratch, &CC->quickroom);
 742
 743         lputuser(&USscratch,iuser);
 744
 745         /* post a message in Aide> saying what we just did */
 746         sprintf(bbb,"%s %s %s> by %s",
 747                 iuser,
 748                 ((op == 1) ? "invited to" : "kicked out of"),
 749                 CC->quickroom.QRname,
 750                 CC->usersupp.fullname);
 751         aide_message(bbb);
 752
 753         cprintf("%d %s %s %s.\n",
 754                 OK, iuser,
 755                 ((op == 1) ? "invited to" : "kicked out of"),
 756                 CC->quickroom.QRname);
 757         return;
 758         }
 759
 760
 761 /*
 762  * forget (Zap) the current room
 763  */
 764 void cmd_forg(void) {
 765         struct visit vbuf;
 766
 767         if (!(CC->logged_in)) {
 768                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 769                 return;
 770                 }
 771
 772         if (is_aide()) {
 773                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 774                 return;
 775                 }
 776
 777         lgetuser(&CC->usersupp,CC->curr_user);
 778         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 779
 780         vbuf.v_flags = vbuf.v_flags | V_FORGET;
 781         vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
 782
 783         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 784         lputuser(&CC->usersupp,CC->curr_user);
 785         cprintf("%d Ok\n",OK);
 786         usergoto(BASEROOM, 0);
 787         }
 788
 789 /*
 790  * Get Next Unregistered User
 791  */
 792 void cmd_gnur(void) {
 793         struct cdbdata *cdbus;
 794         struct usersupp usbuf;
 795
 796         if (!(CC->logged_in)) {
 797                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 798                 return;
 799                 }
 800
 801         if (CC->usersupp.axlevel < 6) {
 802                 cprintf("%d Higher access required.\n",
 803                         ERROR+HIGHER_ACCESS_REQUIRED);
 804                 return;
 805                 }
 806
 807         if ((CitControl.MMflags&MM_VALID)==0) {
 808                 cprintf("%d There are no unvalidated users.\n",OK);
 809                 return;
 810                 }
 811
 812         /* There are unvalidated users.  Traverse the usersupp database,
 813          * and return the first user we find that needs validation.
 814          */
 815         cdb_rewind(CDB_USERSUPP);
 816         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 817                 memset(&usbuf, 0, sizeof(struct usersupp));
 818                 memcpy(&usbuf, cdbus->ptr,
 819                         ( (cdbus->len > sizeof(struct usersupp)) ?
 820                         sizeof(struct usersupp) : cdbus->len) );
 821                 cdb_free(cdbus);
 822                 if ((usbuf.flags & US_NEEDVALID)
 823                    &&(usbuf.axlevel > 0)) {
 824                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 825                         return;
 826                         }
 827                 }
 828
 829         /* If we get to this point, there are no more unvalidated users.
 830          * Therefore we clear the "users need validation" flag.
 831          */
 832
 833         begin_critical_section(S_CONTROL);
 834         get_control();
 835         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 836         put_control();
 837         end_critical_section(S_CONTROL);
 838         cprintf("%d *** End of registration.\n",OK);
 839
 840
 841         }
 842
 843
 844 /*
 845  * get registration info for a user
 846  */
 847 void cmd_greg(char *who)
 848 {
 849         struct usersupp usbuf;
 850         int a,b;
 851         char pbuf[32];
 852
 853         if (!(CC->logged_in)) {
 854                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 855                 return;
 856                 }
 857
 858         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 859
 860         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 861                 cprintf("%d Higher access required.\n",
 862                         ERROR+HIGHER_ACCESS_REQUIRED);
 863                 return;
 864                 }
 865
 866         if (getuser(&usbuf,who) != 0) {
 867                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 868                 return;
 869                 }
 870
 871         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 872         cprintf("%ld\n",usbuf.usernum);
 873         cprintf("%s\n",usbuf.password);
 874         cprintf("%s\n",usbuf.USname);
 875         cprintf("%s\n",usbuf.USaddr);
 876         cprintf("%s\n%s\n%s\n",
 877                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 878         strcpy(pbuf,usbuf.USphone);
 879         usbuf.USphone[0]=0;
 880         for (a=0; a<strlen(pbuf); ++a) {
 881                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 882                         b=strlen(usbuf.USphone);
 883                         usbuf.USphone[b]=pbuf[a];
 884                         usbuf.USphone[b+1]=0;
 885                         }
 886                 }
 887         while(strlen(usbuf.USphone)<10) {
 888                 strcpy(pbuf,usbuf.USphone);
 889                 strcpy(usbuf.USphone," ");
 890                 strcat(usbuf.USphone,pbuf);
 891                 }
 892
 893         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 894                 usbuf.USphone[0],usbuf.USphone[1],
 895                 usbuf.USphone[2],usbuf.USphone[3],
 896                 usbuf.USphone[4],usbuf.USphone[5],
 897                 usbuf.USphone[6],usbuf.USphone[7],
 898                 usbuf.USphone[8],usbuf.USphone[9]);
 899
 900         cprintf("%d\n",usbuf.axlevel);
 901         cprintf("%s\n",usbuf.USemail);
 902         cprintf("000\n");
 903         }
 904
 905 /*
 906  * validate a user
 907  */
 908 void cmd_vali(char *v_args)
 909 {
 910         char user[256];
 911         int newax;
 912         struct usersupp userbuf;
 913
 914         extract(user,v_args,0);
 915         newax = extract_int(v_args,1);
 916
 917         if (!(CC->logged_in)) {
 918                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 919                 return;
 920                 }
 921
 922         if (CC->usersupp.axlevel < 6) {
 923                 cprintf("%d Higher access required.\n",
 924                         ERROR+HIGHER_ACCESS_REQUIRED);
 925                 return;
 926                 }
 927
 928         if (lgetuser(&userbuf,user)!=0) {
 929                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 930                 return;
 931                 }
 932
 933         userbuf.axlevel = newax;
 934         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 935
 936         lputuser(&userbuf,user);
 937
 938         /* If the access level was set to zero, delete the user */
 939         if (newax == 0) {
 940                 if (purge_user(user)==0) {
 941                         cprintf("%d %s Deleted.\n", OK, userbuf.fullname);
 942                         return;
 943                         }
 944                 }
 945
 946         cprintf("%d ok\n",OK);
 947         }
 948
 949
 950
 951 /*
 952  *  Traverse the user file...
 953  */
 954 void ForEachUser(void (*CallBack)(struct usersupp *EachUser)) {
 955         struct usersupp usbuf;
 956         struct cdbdata *cdbus;
 957
 958         cdb_rewind(CDB_USERSUPP);
 959
 960         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 961                 memset(&usbuf, 0, sizeof(struct usersupp));
 962                 memcpy(&usbuf, cdbus->ptr,
 963                         ( (cdbus->len > sizeof(struct usersupp)) ?
 964                         sizeof(struct usersupp) : cdbus->len) );
 965                 cdb_free(cdbus);
 966                 (*CallBack)(&usbuf);
 967                 }
 968         }
 969
 970
 971 /*
 972  * List one user (this works with cmd_list)
 973  */
 974 void ListThisUser(struct usersupp *usbuf) {
 975         if (usbuf->axlevel > 0) {
 976                 if ((CC->usersupp.axlevel>=6)
 977                    ||((usbuf->flags&US_UNLISTED)==0)
 978                    ||((CC->internal_pgm))) {
 979                         cprintf("%s|%d|%ld|%ld|%d|%d|",
 980                                 usbuf->fullname,
 981                                 usbuf->axlevel,
 982                                 usbuf->usernum,
 983                                 usbuf->lastcall,
 984                                 usbuf->timescalled,
 985                                 usbuf->posted);
 986                         if (CC->usersupp.axlevel >= 6)
 987                                 cprintf("%s",usbuf->password);
 988                         cprintf("\n");
 989                         }
 990                 }
 991         }
 992
 993 /*
 994  *  List users
 995  */
 996 void cmd_list(void) {
 997         cprintf("%d \n",LISTING_FOLLOWS);
 998         ForEachUser(ListThisUser);
 999         cprintf("000\n");
1000         }
1001
1002
1003 /*
1004  * enter registration info
1005  */
1006 void cmd_regi(void) {
1007         int a,b,c;
1008         char buf[256];
1009
1010         char tmpname[256];
1011         char tmpaddr[256];
1012         char tmpcity[256];
1013         char tmpstate[256];
1014         char tmpzip[256];
1015         char tmpphone[256];
1016         char tmpemail[256];
1017
1018         if (!(CC->logged_in)) {
1019                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1020                 return;
1021                 }
1022
1023         strcpy(tmpname,"");
1024         strcpy(tmpaddr,"");
1025         strcpy(tmpcity,"");
1026         strcpy(tmpstate,"");
1027         strcpy(tmpzip,"");
1028         strcpy(tmpphone,"");
1029         strcpy(tmpemail,"");
1030
1031         cprintf("%d Send registration...\n",SEND_LISTING);
1032         a=0;
1033         while (client_gets(buf), strcmp(buf,"000")) {
1034                 if (a==0) strcpy(tmpname,buf);
1035                 if (a==1) strcpy(tmpaddr,buf);
1036                 if (a==2) strcpy(tmpcity,buf);
1037                 if (a==3) strcpy(tmpstate,buf);
1038                 if (a==4) {
1039                         for (c=0; c<strlen(buf); ++c) {
1040                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
1041                                         b=strlen(tmpzip);
1042                                         tmpzip[b]=buf[c];
1043                                         tmpzip[b+1]=0;
1044                                         }
1045                                 }
1046                         }
1047                 if (a==5) {
1048                         for (c=0; c<strlen(buf); ++c) {
1049                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
1050                                         b=strlen(tmpphone);
1051                                         tmpphone[b]=buf[c];
1052                                         tmpphone[b+1]=0;
1053                                         }
1054                                 }
1055                         }
1056                 if (a==6) strncpy(tmpemail,buf,31);
1057                 ++a;
1058                 }
1059
1060         tmpname[29]=0;
1061         tmpaddr[24]=0;
1062         tmpcity[14]=0;
1063         tmpstate[2]=0;
1064         tmpzip[9]=0;
1065         tmpphone[10]=0;
1066         tmpemail[31]=0;
1067
1068         lgetuser(&CC->usersupp,CC->curr_user);
1069         strcpy(CC->usersupp.USname,tmpname);
1070         strcpy(CC->usersupp.USaddr,tmpaddr);
1071         strcpy(CC->usersupp.UScity,tmpcity);
1072         strcpy(CC->usersupp.USstate,tmpstate);
1073         strcpy(CC->usersupp.USzip,tmpzip);
1074         strcpy(CC->usersupp.USphone,tmpphone);
1075         strcpy(CC->usersupp.USemail,tmpemail);
1076         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
1077         lputuser(&CC->usersupp,CC->curr_user);
1078
1079         /* set global flag calling for validation */
1080         begin_critical_section(S_CONTROL);
1081         get_control();
1082         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
1083         put_control();
1084         end_critical_section(S_CONTROL);
1085         }
1086
1087
1088 /*
1089  * assorted info we need to check at login
1090  */
1091 void cmd_chek(void) {
1092         int mail = 0;
1093         int regis = 0;
1094         int vali = 0;
1095
1096         if (!(CC->logged_in)) {
1097                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1098                 return;
1099                 }
1100
1101         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
1102         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
1103
1104         if (CC->usersupp.axlevel >= 6) {
1105                 get_control();
1106                 if (CitControl.MMflags&MM_VALID) vali = 1;
1107                 }
1108
1109
1110         /* check for mail */
1111         mail = NewMailCount();
1112
1113         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
1114         }
1115
1116
1117 /*
1118  * check to see if a user exists
1119  */
1120 void cmd_qusr(char *who)
1121 {
1122         struct usersupp usbuf;
1123
1124         if (getuser(&usbuf,who) == 0) {
1125                 cprintf("%d %s\n",OK,usbuf.fullname);
1126                 }
1127         else {
1128                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1129                 }
1130         }
1131
1132
1133 /*
1134  * enter user bio
1135  */
1136 void cmd_ebio(void) {
1137         char buf[256];
1138         FILE *fp;
1139
1140         if (!(CC->logged_in)) {
1141                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1142                 return;
1143                 }
1144
1145         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1146         fp = fopen(buf,"w");
1147         if (fp == NULL) {
1148                 cprintf("%d Cannot create file\n",ERROR);
1149                 return;
1150                 }
1151         cprintf("%d  \n",SEND_LISTING);
1152         while(client_gets(buf), strcmp(buf,"000")) {
1153                 fprintf(fp,"%s\n",buf);
1154                 }
1155         fclose(fp);
1156         }
1157
1158 /*
1159  * read user bio
1160  */
1161 void cmd_rbio(char *cmdbuf)
1162 {
1163         struct usersupp ruser;
1164         char buf[256];
1165         FILE *fp;
1166
1167         extract(buf,cmdbuf,0);
1168         if (getuser(&ruser,buf)!=0) {
1169                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1170                 return;
1171                 }
1172         sprintf(buf,"./bio/%ld",ruser.usernum);
1173
1174         fp = fopen(buf,"r");
1175         if (fp == NULL) {
1176                 cprintf("%d %s has no bio on file.\n",
1177                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1178                 return;
1179                 }
1180         cprintf("%d  \n",LISTING_FOLLOWS);
1181         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1182         fclose(fp);
1183         cprintf("000\n");
1184         }
1185
1186 /*
1187  * list of users who have entered bios
1188  */
1189 void cmd_lbio(void) {
1190         char buf[256];
1191         FILE *ls;
1192         struct usersupp usbuf;
1193
1194         ls=popen("cd ./bio; ls","r");
1195         if (ls==NULL) {
1196                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1197                 return;
1198                 }
1199
1200         cprintf("%d\n",LISTING_FOLLOWS);
1201         while (fgets(buf,255,ls)!=NULL)
1202                 if (getuserbynumber(&usbuf,atol(buf))==0)
1203                         cprintf("%s\n",usbuf.fullname);
1204         pclose(ls);
1205         cprintf("000\n");
1206         }
1207
1208
1209 /*
1210  * Administrative Get User Parameters
1211  */
1212 void cmd_agup(char *cmdbuf) {
1213         struct usersupp usbuf;
1214         char requested_user[256];
1215
1216         if ( (CC->internal_pgm==0)
1217            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1218                 cprintf("%d Higher access required.\n",
1219                         ERROR + HIGHER_ACCESS_REQUIRED);
1220                 return;
1221                 }
1222
1223         extract(requested_user, cmdbuf, 0);
1224         if (getuser(&usbuf, requested_user) != 0) {
1225                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1226                 return;
1227                 }
1228
1229         cprintf("%d %s|%s|%u|%d|%d|%d|%ld|%ld|%d\n",
1230                 OK,
1231                 usbuf.fullname,
1232                 usbuf.password,
1233                 usbuf.flags,
1234                 usbuf.timescalled,
1235                 usbuf.posted,
1236                 (int)usbuf.axlevel,
1237                 usbuf.usernum,
1238                 usbuf.lastcall,
1239                 usbuf.USuserpurge);
1240         }
1241
1242
1243
1244 /*
1245  * Administrative Set User Parameters
1246  */
1247 void cmd_asup(char *cmdbuf) {
1248         struct usersupp usbuf;
1249         char requested_user[256];
1250         int np;
1251         int newax;
1252
1253         if ( (CC->internal_pgm==0)
1254            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1255                 cprintf("%d Higher access required.\n",
1256                         ERROR + HIGHER_ACCESS_REQUIRED);
1257                 return;
1258                 }
1259
1260         extract(requested_user, cmdbuf, 0);
1261         if (lgetuser(&usbuf, requested_user) != 0) {
1262                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1263                 return;
1264                 }
1265
1266         np = num_parms(cmdbuf);
1267         if (np > 1) extract(usbuf.password, cmdbuf, 1);
1268         if (np > 2) usbuf.flags = extract_int(cmdbuf, 2);
1269         if (np > 3) usbuf.timescalled = extract_int(cmdbuf, 3);
1270         if (np > 4) usbuf.posted = extract_int(cmdbuf, 4);
1271         if (np > 5) {
1272                 newax = extract_int(cmdbuf, 5);
1273                 if ((newax >=0) && (newax <= 6)) {
1274                         usbuf.axlevel = extract_int(cmdbuf, 5);
1275                         }
1276                 }
1277         if (np > 7) {
1278                 usbuf.lastcall = extract_long(cmdbuf, 7);
1279                 }
1280         if (np > 8) {
1281                 usbuf.USuserpurge = extract_int(cmdbuf, 8);
1282                 }
1283
1284         lputuser(&usbuf, requested_user);
1285         if (usbuf.axlevel == 0) {
1286                 if (purge_user(requested_user)==0) {
1287                         cprintf("%d %s deleted.\n", OK, requested_user);
1288                         }
1289                 }
1290         cprintf("%d Ok\n", OK);
1291         }
1292
1293
1294 /*
1295  * Count the number of new mail messages the user has
1296  */
1297 int NewMailCount() {
1298         int num_newmsgs = 0;
1299         int a;
1300         char mailboxname[32];
1301         struct quickroom mailbox;
1302         struct visit vbuf;
1303
1304         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
1305         if (getroom(&mailbox, mailboxname)!=0) return(0);
1306         CtdlGetRelationship(&vbuf, &CC->usersupp, &mailbox);
1307
1308         get_msglist(&mailbox);
1309         for (a=0; a<CC->num_msgs; ++a) {
1310                 if (MessageFromList(a)>0L) {
1311                         if (MessageFromList(a) > vbuf.v_lastseen) {
1312                                 ++num_newmsgs;
1313                                 }
1314                         }
1315                 }
1316
1317         return(num_newmsgs);
1318         }