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 #include "dynloader.h"
  30
  31
  32 /*
  33  * getuser()  -  retrieve named user into supplied buffer.
  34  *               returns 0 on success
  35  */
  36 int getuser(struct usersupp *usbuf, char name[]) {
  37
  38         char lowercase_name[32];
  39         int a;
  40         struct cdbdata *cdbus;
  41
  42         bzero(usbuf, sizeof(struct usersupp));
  43         for (a=0; a<=strlen(name); ++a) {
  44                 lowercase_name[a] = tolower(name[a]);
  45                 }
  46
  47         cdbus = cdb_fetch(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
  48         if (cdbus == NULL) {
  49                 return(1);      /* user not found */
  50                 }
  51
  52         memcpy(usbuf, cdbus->ptr,
  53                 ( (cdbus->len > sizeof(struct usersupp)) ?
  54                 sizeof(struct usersupp) : cdbus->len) );
  55         cdb_free(cdbus);
  56         return(0);
  57         }
  58
  59
  60 /*
  61  * lgetuser()  -  same as getuser() but locks the record
  62  */
  63 int lgetuser(struct usersupp *usbuf, char *name)
  64 {
  65         int retcode;
  66
  67         retcode = getuser(usbuf,name);
  68         if (retcode == 0) {
  69                 begin_critical_section(S_USERSUPP);
  70                 }
  71         return(retcode);
  72         }
  73
  74
  75 /*
  76  * putuser()  -  write user buffer into the correct place on disk
  77  */
  78 void putuser(struct usersupp *usbuf, char *name)
  79 {
  80         char lowercase_name[32];
  81         int a;
  82
  83         for (a=0; a<=strlen(name); ++a) {
  84                 lowercase_name[a] = tolower(name[a]);
  85                 }
  86
  87         cdb_store(CDB_USERSUPP,
  88                 lowercase_name, strlen(lowercase_name),
  89                 usbuf, sizeof(struct usersupp));
  90
  91         }
  92
  93
  94 /*
  95  * lputuser()  -  same as putuser() but locks the record
  96  */
  97 void lputuser(struct usersupp *usbuf, char *name) {
  98         putuser(usbuf,name);
  99         end_critical_section(S_USERSUPP);
 100         }
 101
 102
 103 /*
 104  * Is the user currently logged in an Aide?
 105  */
 106 int is_aide(void) {
 107         if (CC->usersupp.axlevel >= 6) return(1);
 108         else return(0);
 109         }
 110
 111
 112 /*
 113  * Is the user currently logged in an Aide *or* the room aide for this room?
 114  */
 115 int is_room_aide(void) {
 116         if ( (CC->usersupp.axlevel >= 6)
 117            || (CC->quickroom.QRroomaide == CC->usersupp.usernum) ) {
 118                 return(1);
 119                 }
 120         else {
 121                 return(0);
 122                 }
 123         }
 124
 125 /*
 126  * getuserbynumber()  -  get user by number
 127  *                       returns 0 if user was found
 128  */
 129 int getuserbynumber(struct usersupp *usbuf, long int number)
 130 {
 131         struct cdbdata *cdbus;
 132
 133         cdb_rewind(CDB_USERSUPP);
 134
 135         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 136                 bzero(usbuf, sizeof(struct usersupp));
 137                 memcpy(usbuf, cdbus->ptr,
 138                         ( (cdbus->len > sizeof(struct usersupp)) ?
 139                         sizeof(struct usersupp) : cdbus->len) );
 140                 cdb_free(cdbus);
 141                 if (usbuf->usernum == number) {
 142                         return(0);
 143                         }
 144                 }
 145         return(-1);
 146         }
 147
 148
 149 /*
 150  * USER cmd
 151  */
 152 void cmd_user(char *cmdbuf)
 153 {
 154         char username[256];
 155         char autoname[256];
 156         int found_user = 0;
 157         struct passwd *p;
 158         int a;
 159
 160         extract(username,cmdbuf,0);
 161         username[25] = 0;
 162         strproc(username);
 163
 164         if ((CC->logged_in)) {
 165                 cprintf("%d Already logged in.\n",ERROR);
 166                 return;
 167                 }
 168
 169         found_user = getuser(&CC->usersupp,username);
 170         if (found_user != 0) {
 171                 p = (struct passwd *)getpwnam(username);
 172                 if (p!=NULL) {
 173                         strcpy(autoname,p->pw_gecos);
 174                         for (a=0; a<strlen(autoname); ++a)
 175                                 if (autoname[a]==',') autoname[a]=0;
 176                         found_user = getuser(&CC->usersupp,autoname);
 177                         }
 178                 }
 179         if (found_user == 0) {
 180                 if (((CC->nologin)) && (CC->usersupp.axlevel < 6)) {
 181                         cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 182                         ERROR+MAX_SESSIONS_EXCEEDED,
 183                         config.c_nodename,config.c_maxsessions);
 184                         }
 185                 else {
 186                         strcpy(CC->curr_user,CC->usersupp.fullname);
 187                         cprintf("%d Password required for %s\n",
 188                                 MORE_DATA,CC->curr_user);
 189                         }
 190                 }
 191         else {
 192                 cprintf("%d %s not found.\n",ERROR,username);
 193                 }
 194         }
 195
 196
 197
 198 /*
 199  * session startup code which is common to both cmd_pass() and cmd_newu()
 200  */
 201 void session_startup(void) {
 202         int a;
 203         struct quickroom qr;
 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         PerformSessionHooks(EVT_LOGIN);
 239
 240         cprintf("%d %s|%d|%d|%d|%u|%ld\n",OK,CC->usersupp.fullname,CC->usersupp.axlevel,
 241                 CC->usersupp.timescalled,CC->usersupp.posted,CC->usersupp.flags,
 242                 CC->usersupp.usernum);
 243         usergoto(0,0);          /* Enter the lobby */
 244         rec_log(CL_LOGIN,CC->curr_user);
 245         }
 246
 247
 248 /*
 249  * misc things to be taken care of when a user is logged out
 250  */
 251 void logout(struct CitContext *who)
 252 {
 253         who->logged_in = 0;
 254         if (who->download_fp != NULL) {
 255                 fclose(who->download_fp);
 256                 who->download_fp = NULL;
 257                 }
 258         if (who->upload_fp != NULL) {
 259                 abort_upl(who);
 260                 }
 261
 262         /* Do modular stuff... */
 263         PerformSessionHooks(EVT_LOGOUT);
 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         PerformSessionHooks(EVT_SETPASS);
 526         }
 527
 528 /*
 529  * get user parameters
 530  */
 531 void cmd_getu(void) {
 532         if (!(CC->logged_in)) {
 533                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 534                 return;
 535                 }
 536         getuser(&CC->usersupp,CC->curr_user);
 537         cprintf("%d %d|%d|%d\n",
 538                 OK,
 539                 CC->usersupp.USscreenwidth,
 540                 CC->usersupp.USscreenheight,
 541                 (CC->usersupp.flags & US_USER_SET)
 542                 );
 543         }
 544
 545 /*
 546  * set user parameters
 547  */
 548 void cmd_setu(char *new_parms)
 549 {
 550
 551         if (num_parms(new_parms)!=3) {
 552                 cprintf("%d Usage error.\n",ERROR);
 553                 return;
 554                 }
 555         if (!(CC->logged_in)) {
 556                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 557                 return;
 558                 }
 559         lgetuser(&CC->usersupp,CC->curr_user);
 560         CC->usersupp.USscreenwidth = extract_int(new_parms,0);
 561         CC->usersupp.USscreenheight = extract_int(new_parms,1);
 562         CC->usersupp.flags = CC->usersupp.flags & (~US_USER_SET);
 563         CC->usersupp.flags = CC->usersupp.flags |
 564                 (extract_int(new_parms,2) & US_USER_SET);
 565         lputuser(&CC->usersupp,CC->curr_user);
 566         cprintf("%d Ok\n",OK);
 567         }
 568
 569 /*
 570  * set last read pointer
 571  */
 572 void cmd_slrp(char *new_ptr)
 573 {
 574         long newlr;
 575
 576         if (!(CC->logged_in)) {
 577                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 578                 return;
 579                 }
 580
 581         if (CC->curr_rm < 0) {
 582                 cprintf("%d No current room.\n",ERROR);
 583                 return;
 584                 }
 585
 586         if (!strncasecmp(new_ptr,"highest",7)) {
 587                 newlr = CC->quickroom.QRhighest;
 588 /* FIX ... if the current room is 1 (Mail), newlr needs to be set to the
 589  * number of the highest mail message
 590  */
 591                 }
 592         else {
 593                 newlr = atol(new_ptr);
 594                 }
 595
 596         lgetuser(&CC->usersupp, CC->curr_user);
 597         CC->usersupp.lastseen[CC->curr_rm] = newlr;
 598         lputuser(&CC->usersupp, CC->curr_user);
 599         cprintf("%d %ld\n",OK,newlr);
 600         }
 601
 602
 603 /*
 604  * INVT and KICK commands
 605  */
 606 void cmd_invt_kick(char *iuser, int op)
 607                         /* user name */
 608         {               /* 1 = invite, 0 = kick out */
 609         struct usersupp USscratch;
 610         char bbb[256];
 611
 612         if (!(CC->logged_in)) {
 613                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 614                 return;
 615                 }
 616
 617         if (CC->curr_rm < 0) {
 618                 cprintf("%d No current room.\n",ERROR);
 619                 return;
 620                 }
 621
 622         if (is_room_aide()==0) {
 623                 cprintf("%d Higher access required.\n",
 624                         ERROR+HIGHER_ACCESS_REQUIRED);
 625                 return;
 626                 }
 627
 628         if ( (op==1) && ((CC->quickroom.QRflags&QR_PRIVATE)==0) ) {
 629                 cprintf("%d Not a private room.\n",ERROR+NOT_HERE);
 630                 return;
 631                 }
 632
 633         if (lgetuser(&USscratch,iuser)!=0) {
 634                 cprintf("%d No such user.\n",ERROR);
 635                 return;
 636                 }
 637
 638         if (op==1) {
 639                 USscratch.generation[CC->curr_rm]=CC->quickroom.QRgen;
 640                 USscratch.forget[CC->curr_rm]=(-1);
 641                 }
 642
 643         if (op==0) {
 644                 USscratch.generation[CC->curr_rm]=(-1);
 645                 USscratch.forget[CC->curr_rm]=CC->quickroom.QRgen;
 646                 }
 647
 648         lputuser(&USscratch,iuser);
 649
 650         /* post a message in Aide> saying what we just did */
 651         sprintf(bbb,"%s %s %s> by %s",
 652                 iuser,
 653                 ((op == 1) ? "invited to" : "kicked out of"),
 654                 CC->quickroom.QRname,
 655                 CC->usersupp.fullname);
 656         aide_message(bbb);
 657
 658         if ((op==0)&&((CC->quickroom.QRflags&QR_PRIVATE)==0)) {
 659                 cprintf("%d Ok. (Not a private room, <Z>ap effect only)\n",OK);
 660                 }
 661         else {
 662                 cprintf("%d Ok.\n",OK);
 663                 }
 664         return;
 665         }
 666
 667
 668 /*
 669  * forget (Zap) the current room
 670  */
 671 void cmd_forg(void) {
 672         if (!(CC->logged_in)) {
 673                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 674                 return;
 675                 }
 676
 677         if (CC->curr_rm < 0) {
 678                 cprintf("%d No current room.\n",ERROR);
 679                 return;
 680                 }
 681
 682         if (CC->curr_rm < 3) {
 683                 cprintf("%d You cannot forget this room.\n",ERROR+NOT_HERE);
 684                 return;
 685                 }
 686
 687         if (is_aide()) {
 688                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 689                 return;
 690                 }
 691
 692         lgetuser(&CC->usersupp,CC->curr_user);
 693         CC->usersupp.forget[CC->curr_rm] = CC->quickroom.QRgen;
 694         CC->usersupp.generation[CC->curr_rm] = (-1);
 695         lputuser(&CC->usersupp,CC->curr_user);
 696         cprintf("%d Ok\n",OK);
 697         CC->curr_rm = (-1);
 698         }
 699
 700 /*
 701  * Get Next Unregistered User
 702  */
 703 void cmd_gnur(void) {
 704         struct cdbdata *cdbus;
 705         struct usersupp usbuf;
 706
 707         if (!(CC->logged_in)) {
 708                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 709                 return;
 710                 }
 711
 712         if (CC->usersupp.axlevel < 6) {
 713                 cprintf("%d Higher access required.\n",
 714                         ERROR+HIGHER_ACCESS_REQUIRED);
 715                 return;
 716                 }
 717
 718         if ((CitControl.MMflags&MM_VALID)==0) {
 719                 cprintf("%d There are no unvalidated users.\n",OK);
 720                 return;
 721                 }
 722
 723         /* There are unvalidated users.  Traverse the usersupp database,
 724          * and return the first user we find that needs validation.
 725          */
 726         cdb_rewind(CDB_USERSUPP);
 727         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 728                 bzero(&usbuf, sizeof(struct usersupp));
 729                 memcpy(&usbuf, cdbus->ptr,
 730                         ( (cdbus->len > sizeof(struct usersupp)) ?
 731                         sizeof(struct usersupp) : cdbus->len) );
 732                 cdb_free(cdbus);
 733                 if ((usbuf.flags & US_NEEDVALID)
 734                    &&(usbuf.axlevel > 0)) {
 735                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 736                         return;
 737                         }
 738                 }
 739
 740         /* If we get to this point, there are no more unvalidated users.
 741          * Therefore we clear the "users need validation" flag.
 742          */
 743
 744         begin_critical_section(S_CONTROL);
 745         get_control();
 746         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 747         put_control();
 748         end_critical_section(S_CONTROL);
 749         cprintf("%d *** End of registration.\n",OK);
 750
 751
 752         }
 753
 754
 755 /*
 756  * get registration info for a user
 757  */
 758 void cmd_greg(char *who)
 759 {
 760         struct usersupp usbuf;
 761         int a,b;
 762         char pbuf[32];
 763
 764         if (!(CC->logged_in)) {
 765                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 766                 return;
 767                 }
 768
 769         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 770
 771         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 772                 cprintf("%d Higher access required.\n",
 773                         ERROR+HIGHER_ACCESS_REQUIRED);
 774                 return;
 775                 }
 776
 777         if (getuser(&usbuf,who) != 0) {
 778                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 779                 return;
 780                 }
 781
 782         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 783         cprintf("%ld\n",usbuf.usernum);
 784         cprintf("%s\n",usbuf.password);
 785         cprintf("%s\n",usbuf.USname);
 786         cprintf("%s\n",usbuf.USaddr);
 787         cprintf("%s\n%s\n%s\n",
 788                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 789         strcpy(pbuf,usbuf.USphone);
 790         usbuf.USphone[0]=0;
 791         for (a=0; a<strlen(pbuf); ++a) {
 792                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 793                         b=strlen(usbuf.USphone);
 794                         usbuf.USphone[b]=pbuf[a];
 795                         usbuf.USphone[b+1]=0;
 796                         }
 797                 }
 798         while(strlen(usbuf.USphone)<10) {
 799                 strcpy(pbuf,usbuf.USphone);
 800                 strcpy(usbuf.USphone," ");
 801                 strcat(usbuf.USphone,pbuf);
 802                 }
 803
 804         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 805                 usbuf.USphone[0],usbuf.USphone[1],
 806                 usbuf.USphone[2],usbuf.USphone[3],
 807                 usbuf.USphone[4],usbuf.USphone[5],
 808                 usbuf.USphone[6],usbuf.USphone[7],
 809                 usbuf.USphone[8],usbuf.USphone[9]);
 810
 811         cprintf("%d\n",usbuf.axlevel);
 812         cprintf("%s\n",usbuf.USemail);
 813         cprintf("000\n");
 814         }
 815
 816 /*
 817  * validate a user
 818  */
 819 void cmd_vali(char *v_args)
 820 {
 821         char user[256];
 822         int newax;
 823         struct usersupp userbuf;
 824
 825         extract(user,v_args,0);
 826         newax = extract_int(v_args,1);
 827
 828         if (!(CC->logged_in)) {
 829                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 830                 return;
 831                 }
 832
 833         if (CC->usersupp.axlevel < 6) {
 834                 cprintf("%d Higher access required.\n",
 835                         ERROR+HIGHER_ACCESS_REQUIRED);
 836                 return;
 837                 }
 838
 839         if (lgetuser(&userbuf,user)!=0) {
 840                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 841                 return;
 842                 }
 843
 844         userbuf.axlevel = newax;
 845         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 846
 847         lputuser(&userbuf,user);
 848
 849         /* If the access level was set to zero, delete the user */
 850         if (newax == 0) {
 851                 if (purge_user(user)==0) {
 852                         cprintf("%d %s Deleted.\n", OK, userbuf.fullname);
 853                         return;
 854                         }
 855                 }
 856
 857         cprintf("%d ok\n",OK);
 858         }
 859
 860
 861
 862 /*
 863  *  Traverse the user file...
 864  */
 865 void ForEachUser(void (*CallBack)(struct usersupp *EachUser)) {
 866         struct usersupp usbuf;
 867         struct cdbdata *cdbus;
 868
 869         cdb_rewind(CDB_USERSUPP);
 870
 871         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 872                 bzero(&usbuf, sizeof(struct usersupp));
 873                 memcpy(&usbuf, cdbus->ptr,
 874                         ( (cdbus->len > sizeof(struct usersupp)) ?
 875                         sizeof(struct usersupp) : cdbus->len) );
 876                 cdb_free(cdbus);
 877                 (*CallBack)(&usbuf);
 878                 }
 879         }
 880
 881
 882 /*
 883  * List one user (this works with cmd_list)
 884  */
 885 void ListThisUser(struct usersupp *usbuf) {
 886         if (usbuf->axlevel > 0) {
 887                 if ((CC->usersupp.axlevel>=6)
 888                    ||((usbuf->flags&US_UNLISTED)==0)
 889                    ||((CC->internal_pgm))) {
 890                         cprintf("%s|%d|%ld|%ld|%d|%d|",
 891                                 usbuf->fullname,
 892                                 usbuf->axlevel,
 893                                 usbuf->usernum,
 894                                 usbuf->lastcall,
 895                                 usbuf->timescalled,
 896                                 usbuf->posted);
 897                         if (CC->usersupp.axlevel >= 6)
 898                                 cprintf("%s",usbuf->password);
 899                         cprintf("\n");
 900                         }
 901                 }
 902         }
 903
 904 /*
 905  *  List users
 906  */
 907 void cmd_list(void) {
 908         cprintf("%d \n",LISTING_FOLLOWS);
 909         ForEachUser(ListThisUser);
 910         cprintf("000\n");
 911         }
 912
 913
 914 /*
 915  * enter registration info
 916  */
 917 void cmd_regi(void) {
 918         int a,b,c;
 919         char buf[256];
 920
 921         char tmpname[256];
 922         char tmpaddr[256];
 923         char tmpcity[256];
 924         char tmpstate[256];
 925         char tmpzip[256];
 926         char tmpphone[256];
 927         char tmpemail[256];
 928
 929         if (!(CC->logged_in)) {
 930                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 931                 return;
 932                 }
 933
 934         strcpy(tmpname,"");
 935         strcpy(tmpaddr,"");
 936         strcpy(tmpcity,"");
 937         strcpy(tmpstate,"");
 938         strcpy(tmpzip,"");
 939         strcpy(tmpphone,"");
 940         strcpy(tmpemail,"");
 941
 942         cprintf("%d Send registration...\n",SEND_LISTING);
 943         a=0;
 944         while (client_gets(buf), strcmp(buf,"000")) {
 945                 if (a==0) strcpy(tmpname,buf);
 946                 if (a==1) strcpy(tmpaddr,buf);
 947                 if (a==2) strcpy(tmpcity,buf);
 948                 if (a==3) strcpy(tmpstate,buf);
 949                 if (a==4) {
 950                         for (c=0; c<strlen(buf); ++c) {
 951                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 952                                         b=strlen(tmpzip);
 953                                         tmpzip[b]=buf[c];
 954                                         tmpzip[b+1]=0;
 955                                         }
 956                                 }
 957                         }
 958                 if (a==5) {
 959                         for (c=0; c<strlen(buf); ++c) {
 960                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 961                                         b=strlen(tmpphone);
 962                                         tmpphone[b]=buf[c];
 963                                         tmpphone[b+1]=0;
 964                                         }
 965                                 }
 966                         }
 967                 if (a==6) strncpy(tmpemail,buf,31);
 968                 ++a;
 969                 }
 970
 971         tmpname[29]=0;
 972         tmpaddr[24]=0;
 973         tmpcity[14]=0;
 974         tmpstate[2]=0;
 975         tmpzip[9]=0;
 976         tmpphone[10]=0;
 977         tmpemail[31]=0;
 978
 979         lgetuser(&CC->usersupp,CC->curr_user);
 980         strcpy(CC->usersupp.USname,tmpname);
 981         strcpy(CC->usersupp.USaddr,tmpaddr);
 982         strcpy(CC->usersupp.UScity,tmpcity);
 983         strcpy(CC->usersupp.USstate,tmpstate);
 984         strcpy(CC->usersupp.USzip,tmpzip);
 985         strcpy(CC->usersupp.USphone,tmpphone);
 986         strcpy(CC->usersupp.USemail,tmpemail);
 987         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
 988         lputuser(&CC->usersupp,CC->curr_user);
 989
 990         /* set global flag calling for validation */
 991         begin_critical_section(S_CONTROL);
 992         get_control();
 993         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
 994         put_control();
 995         end_critical_section(S_CONTROL);
 996         cprintf("%d *** End of registration.\n",OK);
 997         }
 998
 999
1000 /*
1001  * assorted info we need to check at login
1002  */
1003 void cmd_chek(void) {
1004         int mail = 0;
1005         int regis = 0;
1006         int vali = 0;
1007
1008         if (!(CC->logged_in)) {
1009                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1010                 return;
1011                 }
1012
1013         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
1014         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
1015
1016         if (CC->usersupp.axlevel >= 6) {
1017                 get_control();
1018                 if (CitControl.MMflags&MM_VALID) vali = 1;
1019                 }
1020
1021
1022         /* check for mail */
1023         mail = NewMailCount();
1024
1025         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
1026         }
1027
1028
1029 /*
1030  * check to see if a user exists
1031  */
1032 void cmd_qusr(char *who)
1033 {
1034         struct usersupp usbuf;
1035
1036         if (getuser(&usbuf,who) == 0) {
1037                 cprintf("%d %s\n",OK,usbuf.fullname);
1038                 }
1039         else {
1040                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1041                 }
1042         }
1043
1044
1045 /*
1046  * enter user bio
1047  */
1048 void cmd_ebio(void) {
1049         char buf[256];
1050         FILE *fp;
1051
1052         if (!(CC->logged_in)) {
1053                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1054                 return;
1055                 }
1056
1057         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1058         fp = fopen(buf,"w");
1059         if (fp == NULL) {
1060                 cprintf("%d Cannot create file\n",ERROR);
1061                 return;
1062                 }
1063         cprintf("%d  \n",SEND_LISTING);
1064         while(client_gets(buf), strcmp(buf,"000")) {
1065                 fprintf(fp,"%s\n",buf);
1066                 }
1067         fclose(fp);
1068         }
1069
1070 /*
1071  * read user bio
1072  */
1073 void cmd_rbio(char *cmdbuf)
1074 {
1075         struct usersupp ruser;
1076         char buf[256];
1077         FILE *fp;
1078
1079         extract(buf,cmdbuf,0);
1080         if (getuser(&ruser,buf)!=0) {
1081                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1082                 return;
1083                 }
1084         sprintf(buf,"./bio/%ld",ruser.usernum);
1085
1086         fp = fopen(buf,"r");
1087         if (fp == NULL) {
1088                 cprintf("%d %s has no bio on file.\n",
1089                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1090                 return;
1091                 }
1092         cprintf("%d  \n",LISTING_FOLLOWS);
1093         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1094         fclose(fp);
1095         cprintf("000\n");
1096         }
1097
1098 /*
1099  * list of users who have entered bios
1100  */
1101 void cmd_lbio(void) {
1102         char buf[256];
1103         FILE *ls;
1104         struct usersupp usbuf;
1105
1106         ls=popen("cd ./bio; ls","r");
1107         if (ls==NULL) {
1108                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1109                 return;
1110                 }
1111
1112         cprintf("%d\n",LISTING_FOLLOWS);
1113         while (fgets(buf,255,ls)!=NULL)
1114                 if (getuserbynumber(&usbuf,atol(buf))==0)
1115                         cprintf("%s\n",usbuf.fullname);
1116         pclose(ls);
1117         cprintf("000\n");
1118         }
1119
1120
1121 /*
1122  * Administrative Get User Parameters
1123  */
1124 void cmd_agup(char *cmdbuf) {
1125         struct usersupp usbuf;
1126         char requested_user[256];
1127
1128         if ( (CC->internal_pgm==0)
1129            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1130                 cprintf("%d Higher access required.\n",
1131                         ERROR + HIGHER_ACCESS_REQUIRED);
1132                 return;
1133                 }
1134
1135         extract(requested_user, cmdbuf, 0);
1136         if (getuser(&usbuf, requested_user) != 0) {
1137                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1138                 return;
1139                 }
1140
1141         cprintf("%d %s|%s|%u|%d|%d|%d|%ld\n",
1142                 OK,
1143                 usbuf.fullname,
1144                 usbuf.password,
1145                 usbuf.flags,
1146                 usbuf.timescalled,
1147                 usbuf.posted,
1148                 (int)usbuf.axlevel,
1149                 usbuf.usernum);
1150
1151         }
1152
1153
1154
1155 /*
1156  * Administrative Set User Parameters
1157  */
1158 void cmd_asup(char *cmdbuf) {
1159         struct usersupp usbuf;
1160         char requested_user[256];
1161         int np;
1162         int newax;
1163
1164         if ( (CC->internal_pgm==0)
1165            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1166                 cprintf("%d Higher access required.\n",
1167                         ERROR + HIGHER_ACCESS_REQUIRED);
1168                 return;
1169                 }
1170
1171         extract(requested_user, cmdbuf, 0);
1172         if (lgetuser(&usbuf, requested_user) != 0) {
1173                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1174                 return;
1175                 }
1176
1177         np = num_parms(cmdbuf);
1178         if (np > 1) extract(usbuf.password, cmdbuf, 1);
1179         if (np > 2) usbuf.flags = extract_int(cmdbuf, 2);
1180         if (np > 3) usbuf.timescalled = extract_int(cmdbuf, 3);
1181         if (np > 4) usbuf.posted = extract_int(cmdbuf, 4);
1182         if (np > 5) {
1183                 newax = extract_int(cmdbuf, 5);
1184                 if ((newax >=0) && (newax <= 6)) {
1185                         usbuf.axlevel = extract_int(cmdbuf, 5);
1186                         }
1187                 }
1188
1189         lputuser(&usbuf, requested_user);
1190         if (usbuf.axlevel == 0) {
1191                 if (purge_user(requested_user)==0) {
1192                         cprintf("%d %s deleted.\n", OK, requested_user);
1193                         }
1194                 }
1195         cprintf("%d Ok\n", OK);
1196         }
1197
1198
1199 /*
1200  * Count the number of new mail messages the user has
1201  */
1202 int NewMailCount() {
1203         int num_newmsgs = 0;
1204         struct cdbdata *cdbmb;
1205         int num_mails;
1206         long *mailbox;
1207         int a;
1208
1209         cdbmb = cdb_fetch(CDB_MAILBOXES, &CC->usersupp.usernum, sizeof(long));
1210         if (cdbmb != NULL) {
1211                 num_mails = cdbmb->len / sizeof(long);
1212                 mailbox = (long *) cdbmb->ptr;
1213                 if (num_mails > 0) for (a=0; a<num_mails; ++a) {
1214                         if (mailbox[a] > (CC->usersupp.lastseen[1]))
1215                                 ++num_newmsgs;
1216                         }
1217                 cdb_free(cdbmb);
1218                 }
1219         return(num_newmsgs);
1220         }