citadel/user_ops.c

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