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