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
 204         syslog(LOG_NOTICE,"user <%s> logged in",CC->curr_user);
 205
 206         lgetuser(&CC->usersupp,CC->curr_user);
 207         ++(CC->usersupp.timescalled);
 208         CC->fake_username[0] = '\0';
 209         CC->fake_postname[0] = '\0';
 210         CC->fake_hostname[0] = '\0';
 211         CC->fake_roomname[0] = '\0';
 212         CC->last_pager[0] = '\0';
 213         time(&CC->usersupp.lastcall);
 214
 215         /* If this user's name is the name of the system administrator
 216          * (as specified in setup), automatically assign access level 6.
 217          */
 218         if (!strcasecmp(CC->usersupp.fullname, config.c_sysadm)) {
 219                 CC->usersupp.axlevel = 6;
 220                 }
 221
 222 /* A room's generation number changes each time it is recycled. Users are kept
 223  * out of private rooms or forget rooms by matching the generation numbers. To
 224  * avoid an accidental matchup, unmatched numbers are set to -1 here.
 225  */
 226         for (a=0; a<MAXROOMS; ++a) {
 227                 getroom(&qr,a);
 228                 if (CC->usersupp.generation[a] != qr.QRgen)
 229                                         CC->usersupp.generation[a]=(-1);
 230                 if (CC->usersupp.forget[a] != qr.QRgen)
 231                                         CC->usersupp.forget[a]=(-1);
 232                 }
 233
 234         lputuser(&CC->usersupp,CC->curr_user);
 235
 236         /* Run any cleanup routines registered by loadable modules */
 237         PerformSessionHooks(EVT_LOGIN);
 238
 239         cprintf("%d %s|%d|%d|%d|%u|%ld\n",OK,CC->usersupp.fullname,CC->usersupp.axlevel,
 240                 CC->usersupp.timescalled,CC->usersupp.posted,CC->usersupp.flags,
 241                 CC->usersupp.usernum);
 242         usergoto(0,0);          /* Enter the lobby */
 243         rec_log(CL_LOGIN,CC->curr_user);
 244         }
 245
 246
 247 /*
 248  * misc things to be taken care of when a user is logged out
 249  */
 250 void logout(struct CitContext *who)
 251 {
 252         who->logged_in = 0;
 253         if (who->download_fp != NULL) {
 254                 fclose(who->download_fp);
 255                 who->download_fp = NULL;
 256                 }
 257         if (who->upload_fp != NULL) {
 258                 abort_upl(who);
 259                 }
 260
 261         /* Do modular stuff... */
 262         PerformSessionHooks(EVT_LOGOUT);
 263         }
 264
 265
 266 void cmd_pass(char *buf)
 267 {
 268         char password[256];
 269         int code;
 270         struct passwd *p;
 271
 272         extract(password,buf,0);
 273
 274         if ((CC->logged_in)) {
 275                 cprintf("%d Already logged in.\n",ERROR);
 276                 return;
 277                 }
 278         if (!strcmp(CC->curr_user,"")) {
 279                 cprintf("%d You must send a name with USER first.\n",ERROR);
 280                 return;
 281                 }
 282         if (getuser(&CC->usersupp,CC->curr_user)) {
 283                 cprintf("%d Can't find user record!\n",ERROR+INTERNAL_ERROR);
 284                 return;
 285                 }
 286
 287         code = (-1);
 288         if (CC->usersupp.USuid == BBSUID) {
 289                 strproc(password);
 290                 strproc(CC->usersupp.password);
 291                 code = strcasecmp(CC->usersupp.password,password);
 292                 }
 293         else {
 294                 p = (struct passwd *)getpwuid(CC->usersupp.USuid);
 295 #ifdef ENABLE_AUTOLOGIN
 296                 if (p!=NULL) {
 297                         if (!strcmp(p->pw_passwd,
 298                            (char *)crypt(password,p->pw_passwd))) {
 299                                 code = 0;
 300                                 lgetuser(&CC->usersupp, CC->curr_user);
 301                                 strcpy(CC->usersupp.password, password);
 302                                 lputuser(&CC->usersupp, CC->curr_user);
 303                                 }
 304                         }
 305 #endif
 306                 }
 307
 308         if (!code) {
 309                 (CC->logged_in) = 1;
 310                 session_startup();
 311                 }
 312         else {
 313                 cprintf("%d Wrong password.\n",ERROR);
 314                 rec_log(CL_BADPW,CC->curr_user);
 315                 }
 316         }
 317
 318
 319 /*
 320  * Delete a user record *and* all of its related resources.
 321  */
 322 int purge_user(char *pname) {
 323         char filename[64];
 324         struct usersupp usbuf;
 325         int a;
 326         struct cdbdata *cdbmb;
 327         long *mailbox;
 328         int num_mails;
 329
 330         if (getuser(&usbuf, pname) != 0) {
 331                 lprintf(5, "Cannot purge user <%s> - not found\n", pname);
 332                 return(ERROR+NO_SUCH_USER);
 333                 }
 334
 335         /* FIX   Don't delete a user who is currently logged in. */
 336
 337         /* delete any messages in the user's mailbox */
 338         cdbmb = cdb_fetch(CDB_MAILBOXES, &usbuf.usernum, sizeof(long));
 339         if (cdbmb != NULL) {
 340                 num_mails = cdbmb->len / sizeof(long);
 341                 mailbox = (long *) cdbmb->ptr;
 342                 if (num_mails > 0) for (a=0; a<num_mails; ++a) {
 343                         cdb_delete(CDB_MSGMAIN, &mailbox[a], sizeof(long));
 344                         }
 345                 cdb_free(cdbmb);
 346                 /* now delete the mailbox itself */
 347                 cdb_delete(CDB_MAILBOXES, &usbuf.usernum, sizeof(long));
 348                 }
 349
 350
 351         /* delete the userlog entry */
 352         cdb_delete(CDB_USERSUPP, pname, strlen(pname));
 353
 354         /* remove the user's bio file */
 355         sprintf(filename, "./bio/%ld", usbuf.usernum);
 356         unlink(filename);
 357
 358         /* remove the user's picture */
 359         sprintf(filename, "./userpics/%ld.gif", usbuf.usernum);
 360         unlink(filename);
 361
 362         return(0);
 363         }
 364
 365
 366 /*
 367  * create_user()  -  back end processing to create a new user
 368  */
 369 int create_user(char *newusername)
 370 {
 371         struct usersupp usbuf;
 372         int a;
 373         struct passwd *p = NULL;
 374         char username[64];
 375
 376         strcpy(username, newusername);
 377         strproc(username);
 378
 379 #ifdef ENABLE_AUTOLOGIN
 380         p = (struct passwd *)getpwnam(username);
 381 #endif
 382         if (p != NULL) {
 383                 strcpy(username, p->pw_gecos);
 384                 for (a=0; a<strlen(username); ++a) {
 385                         if (username[a] == ',') username[a] = 0;
 386                         }
 387                 CC->usersupp.USuid = p->pw_uid;
 388                 }
 389         else {
 390                 CC->usersupp.USuid = BBSUID;
 391                 }
 392
 393         if (!getuser(&usbuf,username)) {
 394                 return(ERROR+ALREADY_EXISTS);
 395                 }
 396
 397         strcpy(CC->curr_user,username);
 398         strcpy(CC->usersupp.fullname,username);
 399         (CC->logged_in) = 1;
 400
 401         for (a=0; a<MAXROOMS; ++a) {
 402                 CC->usersupp.lastseen[a]=0L;
 403                 CC->usersupp.generation[a]=(-1);
 404                 CC->usersupp.forget[a]=(-1);
 405                 }
 406         strcpy(CC->usersupp.password,"");
 407
 408         /* These are the default flags on new accounts */
 409         CC->usersupp.flags =
 410                 US_NEEDVALID|US_LASTOLD|US_DISAPPEAR|US_PAGINATOR|US_FLOORS;
 411
 412         CC->usersupp.timescalled = 0;
 413         CC->usersupp.posted = 0;
 414         CC->usersupp.axlevel = INITAX;
 415         CC->usersupp.USscreenwidth = 80;
 416         CC->usersupp.USscreenheight = 24;
 417         time(&CC->usersupp.lastcall);
 418         strcpy(CC->usersupp.USname, "");
 419         strcpy(CC->usersupp.USaddr, "");
 420         strcpy(CC->usersupp.UScity, "");
 421         strcpy(CC->usersupp.USstate, "");
 422         strcpy(CC->usersupp.USzip, "");
 423         strcpy(CC->usersupp.USphone, "");
 424
 425         /* fetch a new user number */
 426         CC->usersupp.usernum = get_new_user_number();
 427
 428         if (CC->usersupp.usernum == 1L) {
 429                 CC->usersupp.axlevel = 6;
 430                 }
 431
 432         /* add user to userlog */
 433         putuser(&CC->usersupp,CC->curr_user);
 434         if (getuser(&CC->usersupp,CC->curr_user)) {
 435                 return(ERROR+INTERNAL_ERROR);
 436                 }
 437         rec_log(CL_NEWUSER,CC->curr_user);
 438         return(0);
 439         }
 440
 441
 442
 443
 444 /*
 445  * cmd_newu()  -  create a new user account
 446  */
 447 void cmd_newu(char *cmdbuf)
 448 {
 449         int a;
 450         char username[256];
 451
 452         if ((CC->logged_in)) {
 453                 cprintf("%d Already logged in.\n",ERROR);
 454                 return;
 455                 }
 456
 457         if ((CC->nologin)) {
 458                 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 459                 ERROR+MAX_SESSIONS_EXCEEDED,
 460                 config.c_nodename,config.c_maxsessions);
 461                 }
 462
 463         extract(username,cmdbuf,0);
 464         username[25] = 0;
 465         strproc(username);
 466
 467         if (strlen(username)==0) {
 468                 cprintf("%d You must supply a user name.\n",ERROR);
 469                 return;
 470                 }
 471
 472         a = create_user(username);
 473         if ((!strcasecmp(username, "bbs")) ||
 474             (!strcasecmp(username, "new")) ||
 475             (!strcasecmp(username, ".")))
 476         {
 477            cprintf("%d '%s' is an invalid login name.\n", ERROR);
 478            return;
 479         }
 480         if (a==ERROR+ALREADY_EXISTS) {
 481                 cprintf("%d '%s' already exists.\n",
 482                         ERROR+ALREADY_EXISTS,username);
 483                 return;
 484                 }
 485         else if (a==ERROR+INTERNAL_ERROR) {
 486                 cprintf("%d Internal error - user record disappeared?\n",
 487                         ERROR+INTERNAL_ERROR);
 488                 return;
 489                 }
 490         else if (a==0) {
 491                 session_startup();
 492                 }
 493         else {
 494                 cprintf("%d unknown error\n",ERROR);
 495                 }
 496         rec_log(CL_NEWUSER,CC->curr_user);
 497         }
 498
 499
 500
 501 /*
 502  * set password
 503  */
 504 void cmd_setp(char *new_pw)
 505 {
 506         if (!(CC->logged_in)) {
 507                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 508                 return;
 509                 }
 510         if (CC->usersupp.USuid != BBSUID) {
 511                 cprintf("%d Not allowed.  Use the 'passwd' command.\n",ERROR);
 512                 return;
 513                 }
 514         strproc(new_pw);
 515         if (strlen(new_pw)==0) {
 516                 cprintf("%d Password unchanged.\n",OK);
 517                 return;
 518                 }
 519         lgetuser(&CC->usersupp,CC->curr_user);
 520         strcpy(CC->usersupp.password,new_pw);
 521         lputuser(&CC->usersupp,CC->curr_user);
 522         cprintf("%d Password changed.\n",OK);
 523         rec_log(CL_PWCHANGE,CC->curr_user);
 524         PerformSessionHooks(EVT_SETPASS);
 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 /* FIX ... if the current room is 1 (Mail), newlr needs to be set to the
 588  * number of the highest mail message
 589  */
 590                 }
 591         else {
 592                 newlr = atol(new_ptr);
 593                 }
 594
 595         lgetuser(&CC->usersupp, CC->curr_user);
 596         CC->usersupp.lastseen[CC->curr_rm] = newlr;
 597         lputuser(&CC->usersupp, CC->curr_user);
 598         cprintf("%d %ld\n",OK,newlr);
 599         }
 600
 601
 602 /*
 603  * INVT and KICK commands
 604  */
 605 void cmd_invt_kick(char *iuser, int op)
 606                         /* user name */
 607         {               /* 1 = invite, 0 = kick out */
 608         struct usersupp USscratch;
 609         char bbb[256];
 610
 611         if (!(CC->logged_in)) {
 612                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 613                 return;
 614                 }
 615
 616         if (CC->curr_rm < 0) {
 617                 cprintf("%d No current room.\n",ERROR);
 618                 return;
 619                 }
 620
 621         if (is_room_aide()==0) {
 622                 cprintf("%d Higher access required.\n",
 623                         ERROR+HIGHER_ACCESS_REQUIRED);
 624                 return;
 625                 }
 626
 627         if ( (op==1) && ((CC->quickroom.QRflags&QR_PRIVATE)==0) ) {
 628                 cprintf("%d Not a private room.\n",ERROR+NOT_HERE);
 629                 return;
 630                 }
 631
 632         if (lgetuser(&USscratch,iuser)!=0) {
 633                 cprintf("%d No such user.\n",ERROR);
 634                 return;
 635                 }
 636
 637         if (op==1) {
 638                 USscratch.generation[CC->curr_rm]=CC->quickroom.QRgen;
 639                 USscratch.forget[CC->curr_rm]=(-1);
 640                 }
 641
 642         if (op==0) {
 643                 USscratch.generation[CC->curr_rm]=(-1);
 644                 USscratch.forget[CC->curr_rm]=CC->quickroom.QRgen;
 645                 }
 646
 647         lputuser(&USscratch,iuser);
 648
 649         /* post a message in Aide> saying what we just did */
 650         sprintf(bbb,"%s %s %s> by %s",
 651                 iuser,
 652                 ((op == 1) ? "invited to" : "kicked out of"),
 653                 CC->quickroom.QRname,
 654                 CC->usersupp.fullname);
 655         aide_message(bbb);
 656
 657         if ((op==0)&&((CC->quickroom.QRflags&QR_PRIVATE)==0)) {
 658                 cprintf("%d Ok. (Not a private room, <Z>ap effect only)\n",OK);
 659                 }
 660         else {
 661                 cprintf("%d Ok.\n",OK);
 662                 }
 663         return;
 664         }
 665
 666
 667 /*
 668  * forget (Zap) the current room
 669  */
 670 void cmd_forg(void) {
 671         if (!(CC->logged_in)) {
 672                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 673                 return;
 674                 }
 675
 676         if (CC->curr_rm < 0) {
 677                 cprintf("%d No current room.\n",ERROR);
 678                 return;
 679                 }
 680
 681         if (CC->curr_rm < 3) {
 682                 cprintf("%d You cannot forget this room.\n",ERROR+NOT_HERE);
 683                 return;
 684                 }
 685
 686         if (is_aide()) {
 687                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 688                 return;
 689                 }
 690
 691         lgetuser(&CC->usersupp,CC->curr_user);
 692         CC->usersupp.forget[CC->curr_rm] = CC->quickroom.QRgen;
 693         CC->usersupp.generation[CC->curr_rm] = (-1);
 694         lputuser(&CC->usersupp,CC->curr_user);
 695         cprintf("%d Ok\n",OK);
 696         CC->curr_rm = (-1);
 697         }
 698
 699 /*
 700  * Get Next Unregistered User
 701  */
 702 void cmd_gnur(void) {
 703         struct cdbdata *cdbus;
 704         struct usersupp usbuf;
 705
 706         if (!(CC->logged_in)) {
 707                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 708                 return;
 709                 }
 710
 711         if (CC->usersupp.axlevel < 6) {
 712                 cprintf("%d Higher access required.\n",
 713                         ERROR+HIGHER_ACCESS_REQUIRED);
 714                 return;
 715                 }
 716
 717         if ((CitControl.MMflags&MM_VALID)==0) {
 718                 cprintf("%d There are no unvalidated users.\n",OK);
 719                 return;
 720                 }
 721
 722         /* There are unvalidated users.  Traverse the usersupp database,
 723          * and return the first user we find that needs validation.
 724          */
 725         cdb_rewind(CDB_USERSUPP);
 726         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 727                 bzero(&usbuf, sizeof(struct usersupp));
 728                 memcpy(&usbuf, cdbus->ptr,
 729                         ( (cdbus->len > sizeof(struct usersupp)) ?
 730                         sizeof(struct usersupp) : cdbus->len) );
 731                 cdb_free(cdbus);
 732                 if ((usbuf.flags & US_NEEDVALID)
 733                    &&(usbuf.axlevel > 0)) {
 734                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 735                         return;
 736                         }
 737                 }
 738
 739         /* If we get to this point, there are no more unvalidated users.
 740          * Therefore we clear the "users need validation" flag.
 741          */
 742
 743         begin_critical_section(S_CONTROL);
 744         get_control();
 745         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 746         put_control();
 747         end_critical_section(S_CONTROL);
 748         cprintf("%d *** End of registration.\n",OK);
 749
 750
 751         }
 752
 753
 754 /*
 755  * get registration info for a user
 756  */
 757 void cmd_greg(char *who)
 758 {
 759         struct usersupp usbuf;
 760         int a,b;
 761         char pbuf[32];
 762
 763         if (!(CC->logged_in)) {
 764                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 765                 return;
 766                 }
 767
 768         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 769
 770         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 771                 cprintf("%d Higher access required.\n",
 772                         ERROR+HIGHER_ACCESS_REQUIRED);
 773                 return;
 774                 }
 775
 776         if (getuser(&usbuf,who) != 0) {
 777                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 778                 return;
 779                 }
 780
 781         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 782         cprintf("%ld\n",usbuf.usernum);
 783         cprintf("%s\n",usbuf.password);
 784         cprintf("%s\n",usbuf.USname);
 785         cprintf("%s\n",usbuf.USaddr);
 786         cprintf("%s\n%s\n%s\n",
 787                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 788         strcpy(pbuf,usbuf.USphone);
 789         usbuf.USphone[0]=0;
 790         for (a=0; a<strlen(pbuf); ++a) {
 791                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 792                         b=strlen(usbuf.USphone);
 793                         usbuf.USphone[b]=pbuf[a];
 794                         usbuf.USphone[b+1]=0;
 795                         }
 796                 }
 797         while(strlen(usbuf.USphone)<10) {
 798                 strcpy(pbuf,usbuf.USphone);
 799                 strcpy(usbuf.USphone," ");
 800                 strcat(usbuf.USphone,pbuf);
 801                 }
 802
 803         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 804                 usbuf.USphone[0],usbuf.USphone[1],
 805                 usbuf.USphone[2],usbuf.USphone[3],
 806                 usbuf.USphone[4],usbuf.USphone[5],
 807                 usbuf.USphone[6],usbuf.USphone[7],
 808                 usbuf.USphone[8],usbuf.USphone[9]);
 809
 810         cprintf("%d\n",usbuf.axlevel);
 811         cprintf("%s\n",usbuf.USemail);
 812         cprintf("000\n");
 813         }
 814
 815 /*
 816  * validate a user
 817  */
 818 void cmd_vali(char *v_args)
 819 {
 820         char user[256];
 821         int newax;
 822         struct usersupp userbuf;
 823
 824         extract(user,v_args,0);
 825         newax = extract_int(v_args,1);
 826
 827         if (!(CC->logged_in)) {
 828                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 829                 return;
 830                 }
 831
 832         if (CC->usersupp.axlevel < 6) {
 833                 cprintf("%d Higher access required.\n",
 834                         ERROR+HIGHER_ACCESS_REQUIRED);
 835                 return;
 836                 }
 837
 838         if (lgetuser(&userbuf,user)!=0) {
 839                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 840                 return;
 841                 }
 842
 843         userbuf.axlevel = newax;
 844         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 845
 846         lputuser(&userbuf,user);
 847
 848         /* If the access level was set to zero, delete the user */
 849         if (newax == 0) {
 850                 if (purge_user(user)==0) {
 851                         cprintf("%d %s Deleted.\n", OK, userbuf.fullname);
 852                         return;
 853                         }
 854                 }
 855
 856         cprintf("%d ok\n",OK);
 857         }
 858
 859
 860
 861 /*
 862  *  Traverse the user file...
 863  */
 864 void ForEachUser(void (*CallBack)(struct usersupp *EachUser)) {
 865         struct usersupp usbuf;
 866         struct cdbdata *cdbus;
 867
 868         cdb_rewind(CDB_USERSUPP);
 869
 870         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 871                 bzero(&usbuf, sizeof(struct usersupp));
 872                 memcpy(&usbuf, cdbus->ptr,
 873                         ( (cdbus->len > sizeof(struct usersupp)) ?
 874                         sizeof(struct usersupp) : cdbus->len) );
 875                 cdb_free(cdbus);
 876                 (*CallBack)(&usbuf);
 877                 }
 878         }
 879
 880
 881 /*
 882  * List one user (this works with cmd_list)
 883  */
 884 void ListThisUser(struct usersupp *usbuf) {
 885         if (usbuf->axlevel > 0) {
 886                 if ((CC->usersupp.axlevel>=6)
 887                    ||((usbuf->flags&US_UNLISTED)==0)
 888                    ||((CC->internal_pgm))) {
 889                         cprintf("%s|%d|%ld|%ld|%d|%d|",
 890                                 usbuf->fullname,
 891                                 usbuf->axlevel,
 892                                 usbuf->usernum,
 893                                 usbuf->lastcall,
 894                                 usbuf->timescalled,
 895                                 usbuf->posted);
 896                         if (CC->usersupp.axlevel >= 6)
 897                                 cprintf("%s",usbuf->password);
 898                         cprintf("\n");
 899                         }
 900                 }
 901         }
 902
 903 /*
 904  *  List users
 905  */
 906 void cmd_list(void) {
 907         cprintf("%d \n",LISTING_FOLLOWS);
 908         ForEachUser(ListThisUser);
 909         cprintf("000\n");
 910         }
 911
 912
 913 /*
 914  * enter registration info
 915  */
 916 void cmd_regi(void) {
 917         int a,b,c;
 918         char buf[256];
 919
 920         char tmpname[256];
 921         char tmpaddr[256];
 922         char tmpcity[256];
 923         char tmpstate[256];
 924         char tmpzip[256];
 925         char tmpphone[256];
 926         char tmpemail[256];
 927
 928         if (!(CC->logged_in)) {
 929                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 930                 return;
 931                 }
 932
 933         strcpy(tmpname,"");
 934         strcpy(tmpaddr,"");
 935         strcpy(tmpcity,"");
 936         strcpy(tmpstate,"");
 937         strcpy(tmpzip,"");
 938         strcpy(tmpphone,"");
 939         strcpy(tmpemail,"");
 940
 941         cprintf("%d Send registration...\n",SEND_LISTING);
 942         a=0;
 943         while (client_gets(buf), strcmp(buf,"000")) {
 944                 if (a==0) strcpy(tmpname,buf);
 945                 if (a==1) strcpy(tmpaddr,buf);
 946                 if (a==2) strcpy(tmpcity,buf);
 947                 if (a==3) strcpy(tmpstate,buf);
 948                 if (a==4) {
 949                         for (c=0; c<strlen(buf); ++c) {
 950                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 951                                         b=strlen(tmpzip);
 952                                         tmpzip[b]=buf[c];
 953                                         tmpzip[b+1]=0;
 954                                         }
 955                                 }
 956                         }
 957                 if (a==5) {
 958                         for (c=0; c<strlen(buf); ++c) {
 959                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 960                                         b=strlen(tmpphone);
 961                                         tmpphone[b]=buf[c];
 962                                         tmpphone[b+1]=0;
 963                                         }
 964                                 }
 965                         }
 966                 if (a==6) strncpy(tmpemail,buf,31);
 967                 ++a;
 968                 }
 969
 970         tmpname[29]=0;
 971         tmpaddr[24]=0;
 972         tmpcity[14]=0;
 973         tmpstate[2]=0;
 974         tmpzip[9]=0;
 975         tmpphone[10]=0;
 976         tmpemail[31]=0;
 977
 978         lgetuser(&CC->usersupp,CC->curr_user);
 979         strcpy(CC->usersupp.USname,tmpname);
 980         strcpy(CC->usersupp.USaddr,tmpaddr);
 981         strcpy(CC->usersupp.UScity,tmpcity);
 982         strcpy(CC->usersupp.USstate,tmpstate);
 983         strcpy(CC->usersupp.USzip,tmpzip);
 984         strcpy(CC->usersupp.USphone,tmpphone);
 985         strcpy(CC->usersupp.USemail,tmpemail);
 986         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
 987         lputuser(&CC->usersupp,CC->curr_user);
 988
 989         /* set global flag calling for validation */
 990         begin_critical_section(S_CONTROL);
 991         get_control();
 992         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
 993         put_control();
 994         end_critical_section(S_CONTROL);
 995         cprintf("%d *** End of registration.\n",OK);
 996         }
 997
 998
 999 /*
1000  * assorted info we need to check at login
1001  */
1002 void cmd_chek(void) {
1003         int mail = 0;
1004         int regis = 0;
1005         int vali = 0;
1006
1007         if (!(CC->logged_in)) {
1008                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1009                 return;
1010                 }
1011
1012         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
1013         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
1014
1015         if (CC->usersupp.axlevel >= 6) {
1016                 get_control();
1017                 if (CitControl.MMflags&MM_VALID) vali = 1;
1018                 }
1019
1020
1021         /* check for mail */
1022         mail = NewMailCount();
1023
1024         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
1025         }
1026
1027
1028 /*
1029  * check to see if a user exists
1030  */
1031 void cmd_qusr(char *who)
1032 {
1033         struct usersupp usbuf;
1034
1035         if (getuser(&usbuf,who) == 0) {
1036                 cprintf("%d %s\n",OK,usbuf.fullname);
1037                 }
1038         else {
1039                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1040                 }
1041         }
1042
1043
1044 /*
1045  * enter user bio
1046  */
1047 void cmd_ebio(void) {
1048         char buf[256];
1049         FILE *fp;
1050
1051         if (!(CC->logged_in)) {
1052                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1053                 return;
1054                 }
1055
1056         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1057         fp = fopen(buf,"w");
1058         if (fp == NULL) {
1059                 cprintf("%d Cannot create file\n",ERROR);
1060                 return;
1061                 }
1062         cprintf("%d  \n",SEND_LISTING);
1063         while(client_gets(buf), strcmp(buf,"000")) {
1064                 fprintf(fp,"%s\n",buf);
1065                 }
1066         fclose(fp);
1067         }
1068
1069 /*
1070  * read user bio
1071  */
1072 void cmd_rbio(char *cmdbuf)
1073 {
1074         struct usersupp ruser;
1075         char buf[256];
1076         FILE *fp;
1077
1078         extract(buf,cmdbuf,0);
1079         if (getuser(&ruser,buf)!=0) {
1080                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1081                 return;
1082                 }
1083         sprintf(buf,"./bio/%ld",ruser.usernum);
1084
1085         fp = fopen(buf,"r");
1086         if (fp == NULL) {
1087                 cprintf("%d %s has no bio on file.\n",
1088                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1089                 return;
1090                 }
1091         cprintf("%d  \n",LISTING_FOLLOWS);
1092         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1093         fclose(fp);
1094         cprintf("000\n");
1095         }
1096
1097 /*
1098  * list of users who have entered bios
1099  */
1100 void cmd_lbio(void) {
1101         char buf[256];
1102         FILE *ls;
1103         struct usersupp usbuf;
1104
1105         ls=popen("cd ./bio; ls","r");
1106         if (ls==NULL) {
1107                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1108                 return;
1109                 }
1110
1111         cprintf("%d\n",LISTING_FOLLOWS);
1112         while (fgets(buf,255,ls)!=NULL)
1113                 if (getuserbynumber(&usbuf,atol(buf))==0)
1114                         cprintf("%s\n",usbuf.fullname);
1115         pclose(ls);
1116         cprintf("000\n");
1117         }
1118
1119
1120 /*
1121  * Administrative Get User Parameters
1122  */
1123 void cmd_agup(char *cmdbuf) {
1124         struct usersupp usbuf;
1125         char requested_user[256];
1126
1127         if ( (CC->internal_pgm==0)
1128            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1129                 cprintf("%d Higher access required.\n",
1130                         ERROR + HIGHER_ACCESS_REQUIRED);
1131                 return;
1132                 }
1133
1134         extract(requested_user, cmdbuf, 0);
1135         if (getuser(&usbuf, requested_user) != 0) {
1136                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1137                 return;
1138                 }
1139
1140         cprintf("%d %s|%s|%u|%d|%d|%d|%ld\n",
1141                 OK,
1142                 usbuf.fullname,
1143                 usbuf.password,
1144                 usbuf.flags,
1145                 usbuf.timescalled,
1146                 usbuf.posted,
1147                 (int)usbuf.axlevel,
1148                 usbuf.usernum);
1149
1150         }
1151
1152
1153
1154 /*
1155  * Administrative Set User Parameters
1156  */
1157 void cmd_asup(char *cmdbuf) {
1158         struct usersupp usbuf;
1159         char requested_user[256];
1160         int np;
1161         int newax;
1162
1163         if ( (CC->internal_pgm==0)
1164            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1165                 cprintf("%d Higher access required.\n",
1166                         ERROR + HIGHER_ACCESS_REQUIRED);
1167                 return;
1168                 }
1169
1170         extract(requested_user, cmdbuf, 0);
1171         if (lgetuser(&usbuf, requested_user) != 0) {
1172                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1173                 return;
1174                 }
1175
1176         np = num_parms(cmdbuf);
1177         if (np > 1) extract(usbuf.password, cmdbuf, 1);
1178         if (np > 2) usbuf.flags = extract_int(cmdbuf, 2);
1179         if (np > 3) usbuf.timescalled = extract_int(cmdbuf, 3);
1180         if (np > 4) usbuf.posted = extract_int(cmdbuf, 4);
1181         if (np > 5) {
1182                 newax = extract_int(cmdbuf, 5);
1183                 if ((newax >=0) && (newax <= 6)) {
1184                         usbuf.axlevel = extract_int(cmdbuf, 5);
1185                         }
1186                 }
1187
1188         lputuser(&usbuf, requested_user);
1189         if (usbuf.axlevel == 0) {
1190                 if (purge_user(requested_user)==0) {
1191                         cprintf("%d %s deleted.\n", OK, requested_user);
1192                         }
1193                 }
1194         cprintf("%d Ok\n", OK);
1195         }
1196
1197
1198 /*
1199  * Count the number of new mail messages the user has
1200  */
1201 int NewMailCount() {
1202         int num_newmsgs = 0;
1203         struct cdbdata *cdbmb;
1204         int num_mails;
1205         long *mailbox;
1206         int a;
1207
1208         cdbmb = cdb_fetch(CDB_MAILBOXES, &CC->usersupp.usernum, sizeof(long));
1209         if (cdbmb != NULL) {
1210                 num_mails = cdbmb->len / sizeof(long);
1211                 mailbox = (long *) cdbmb->ptr;
1212                 if (num_mails > 0) for (a=0; a<num_mails; ++a) {
1213                         if (mailbox[a] > (CC->usersupp.lastseen[1]))
1214                                 ++num_newmsgs;
1215                         }
1216                 cdb_free(cdbmb);
1217                 }
1218         return(num_newmsgs);
1219         }