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         /* Perform any purge functions registered by server extensions */
 339         PerformUserHooks(usbuf.fullname, usbuf.usernum, EVT_PURGEUSER);
 340
 341         /* delete any messages in the user's mailbox */
 342         cdbmb = cdb_fetch(CDB_MAILBOXES, &usbuf.usernum, sizeof(long));
 343         if (cdbmb != NULL) {
 344                 num_mails = cdbmb->len / sizeof(long);
 345                 mailbox = (long *) cdbmb->ptr;
 346                 if (num_mails > 0) for (a=0; a<num_mails; ++a) {
 347                         cdb_delete(CDB_MSGMAIN, &mailbox[a], sizeof(long));
 348                         }
 349                 cdb_free(cdbmb);
 350                 /* now delete the mailbox itself */
 351                 cdb_delete(CDB_MAILBOXES, &usbuf.usernum, sizeof(long));
 352                 }
 353
 354         /* delete the userlog entry */
 355         cdb_delete(CDB_USERSUPP, pname, strlen(pname));
 356
 357         /* remove the user's bio file */
 358         sprintf(filename, "./bio/%ld", usbuf.usernum);
 359         unlink(filename);
 360
 361         /* remove the user's picture */
 362         sprintf(filename, "./userpics/%ld.gif", usbuf.usernum);
 363         unlink(filename);
 364
 365         return(0);
 366         }
 367
 368
 369 /*
 370  * create_user()  -  back end processing to create a new user
 371  */
 372 int create_user(char *newusername)
 373 {
 374         struct usersupp usbuf;
 375         int a;
 376         struct passwd *p = NULL;
 377         char username[64];
 378
 379         strcpy(username, newusername);
 380         strproc(username);
 381
 382 #ifdef ENABLE_AUTOLOGIN
 383         p = (struct passwd *)getpwnam(username);
 384 #endif
 385         if (p != NULL) {
 386                 strcpy(username, p->pw_gecos);
 387                 for (a=0; a<strlen(username); ++a) {
 388                         if (username[a] == ',') username[a] = 0;
 389                         }
 390                 CC->usersupp.USuid = p->pw_uid;
 391                 }
 392         else {
 393                 CC->usersupp.USuid = BBSUID;
 394                 }
 395
 396         if (!getuser(&usbuf,username)) {
 397                 return(ERROR+ALREADY_EXISTS);
 398                 }
 399
 400         strcpy(CC->curr_user,username);
 401         strcpy(CC->usersupp.fullname,username);
 402         (CC->logged_in) = 1;
 403
 404         for (a=0; a<MAXROOMS; ++a) {
 405                 CC->usersupp.lastseen[a]=0L;
 406                 CC->usersupp.generation[a]=(-1);
 407                 CC->usersupp.forget[a]=(-1);
 408                 }
 409         strcpy(CC->usersupp.password,"");
 410
 411         /* These are the default flags on new accounts */
 412         CC->usersupp.flags =
 413                 US_NEEDVALID|US_LASTOLD|US_DISAPPEAR|US_PAGINATOR|US_FLOORS;
 414
 415         CC->usersupp.timescalled = 0;
 416         CC->usersupp.posted = 0;
 417         CC->usersupp.axlevel = INITAX;
 418         CC->usersupp.USscreenwidth = 80;
 419         CC->usersupp.USscreenheight = 24;
 420         time(&CC->usersupp.lastcall);
 421         strcpy(CC->usersupp.USname, "");
 422         strcpy(CC->usersupp.USaddr, "");
 423         strcpy(CC->usersupp.UScity, "");
 424         strcpy(CC->usersupp.USstate, "");
 425         strcpy(CC->usersupp.USzip, "");
 426         strcpy(CC->usersupp.USphone, "");
 427
 428         /* fetch a new user number */
 429         CC->usersupp.usernum = get_new_user_number();
 430
 431         if (CC->usersupp.usernum == 1L) {
 432                 CC->usersupp.axlevel = 6;
 433                 }
 434
 435         /* add user to userlog */
 436         putuser(&CC->usersupp,CC->curr_user);
 437         if (getuser(&CC->usersupp,CC->curr_user)) {
 438                 return(ERROR+INTERNAL_ERROR);
 439                 }
 440         rec_log(CL_NEWUSER,CC->curr_user);
 441         return(0);
 442         }
 443
 444
 445
 446
 447 /*
 448  * cmd_newu()  -  create a new user account
 449  */
 450 void cmd_newu(char *cmdbuf)
 451 {
 452         int a;
 453         char username[256];
 454
 455         if ((CC->logged_in)) {
 456                 cprintf("%d Already logged in.\n",ERROR);
 457                 return;
 458                 }
 459
 460         if ((CC->nologin)) {
 461                 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 462                 ERROR+MAX_SESSIONS_EXCEEDED,
 463                 config.c_nodename,config.c_maxsessions);
 464                 }
 465
 466         extract(username,cmdbuf,0);
 467         username[25] = 0;
 468         strproc(username);
 469
 470         if (strlen(username)==0) {
 471                 cprintf("%d You must supply a user name.\n",ERROR);
 472                 return;
 473                 }
 474
 475         a = create_user(username);
 476         if ((!strcasecmp(username, "bbs")) ||
 477             (!strcasecmp(username, "new")) ||
 478             (!strcasecmp(username, ".")))
 479         {
 480            cprintf("%d '%s' is an invalid login name.\n", ERROR);
 481            return;
 482         }
 483         if (a==ERROR+ALREADY_EXISTS) {
 484                 cprintf("%d '%s' already exists.\n",
 485                         ERROR+ALREADY_EXISTS,username);
 486                 return;
 487                 }
 488         else if (a==ERROR+INTERNAL_ERROR) {
 489                 cprintf("%d Internal error - user record disappeared?\n",
 490                         ERROR+INTERNAL_ERROR);
 491                 return;
 492                 }
 493         else if (a==0) {
 494                 session_startup();
 495                 }
 496         else {
 497                 cprintf("%d unknown error\n",ERROR);
 498                 }
 499         rec_log(CL_NEWUSER,CC->curr_user);
 500         }
 501
 502
 503
 504 /*
 505  * set password
 506  */
 507 void cmd_setp(char *new_pw)
 508 {
 509         if (!(CC->logged_in)) {
 510                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 511                 return;
 512                 }
 513         if (CC->usersupp.USuid != BBSUID) {
 514                 cprintf("%d Not allowed.  Use the 'passwd' command.\n",ERROR);
 515                 return;
 516                 }
 517         strproc(new_pw);
 518         if (strlen(new_pw)==0) {
 519                 cprintf("%d Password unchanged.\n",OK);
 520                 return;
 521                 }
 522         lgetuser(&CC->usersupp,CC->curr_user);
 523         strcpy(CC->usersupp.password,new_pw);
 524         lputuser(&CC->usersupp,CC->curr_user);
 525         cprintf("%d Password changed.\n",OK);
 526         rec_log(CL_PWCHANGE,CC->curr_user);
 527         PerformSessionHooks(EVT_SETPASS);
 528         }
 529
 530 /*
 531  * get user parameters
 532  */
 533 void cmd_getu(void) {
 534         if (!(CC->logged_in)) {
 535                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 536                 return;
 537                 }
 538         getuser(&CC->usersupp,CC->curr_user);
 539         cprintf("%d %d|%d|%d\n",
 540                 OK,
 541                 CC->usersupp.USscreenwidth,
 542                 CC->usersupp.USscreenheight,
 543                 (CC->usersupp.flags & US_USER_SET)
 544                 );
 545         }
 546
 547 /*
 548  * set user parameters
 549  */
 550 void cmd_setu(char *new_parms)
 551 {
 552
 553         if (num_parms(new_parms)!=3) {
 554                 cprintf("%d Usage error.\n",ERROR);
 555                 return;
 556                 }
 557         if (!(CC->logged_in)) {
 558                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 559                 return;
 560                 }
 561         lgetuser(&CC->usersupp,CC->curr_user);
 562         CC->usersupp.USscreenwidth = extract_int(new_parms,0);
 563         CC->usersupp.USscreenheight = extract_int(new_parms,1);
 564         CC->usersupp.flags = CC->usersupp.flags & (~US_USER_SET);
 565         CC->usersupp.flags = CC->usersupp.flags |
 566                 (extract_int(new_parms,2) & US_USER_SET);
 567         lputuser(&CC->usersupp,CC->curr_user);
 568         cprintf("%d Ok\n",OK);
 569         }
 570
 571 /*
 572  * set last read pointer
 573  */
 574 void cmd_slrp(char *new_ptr)
 575 {
 576         long newlr;
 577
 578         if (!(CC->logged_in)) {
 579                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 580                 return;
 581                 }
 582
 583         if (CC->curr_rm < 0) {
 584                 cprintf("%d No current room.\n",ERROR);
 585                 return;
 586                 }
 587
 588         if (!strncasecmp(new_ptr,"highest",7)) {
 589                 newlr = CC->quickroom.QRhighest;
 590 /* FIX ... if the current room is 1 (Mail), newlr needs to be set to the
 591  * number of the highest mail message
 592  */
 593                 }
 594         else {
 595                 newlr = atol(new_ptr);
 596                 }
 597
 598         lgetuser(&CC->usersupp, CC->curr_user);
 599         CC->usersupp.lastseen[CC->curr_rm] = newlr;
 600         lputuser(&CC->usersupp, CC->curr_user);
 601         cprintf("%d %ld\n",OK,newlr);
 602         }
 603
 604
 605 /*
 606  * INVT and KICK commands
 607  */
 608 void cmd_invt_kick(char *iuser, int op)
 609                         /* user name */
 610         {               /* 1 = invite, 0 = kick out */
 611         struct usersupp USscratch;
 612         char bbb[256];
 613
 614         if (!(CC->logged_in)) {
 615                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 616                 return;
 617                 }
 618
 619         if (CC->curr_rm < 0) {
 620                 cprintf("%d No current room.\n",ERROR);
 621                 return;
 622                 }
 623
 624         if (is_room_aide()==0) {
 625                 cprintf("%d Higher access required.\n",
 626                         ERROR+HIGHER_ACCESS_REQUIRED);
 627                 return;
 628                 }
 629
 630         if ( (op==1) && ((CC->quickroom.QRflags&QR_PRIVATE)==0) ) {
 631                 cprintf("%d Not a private room.\n",ERROR+NOT_HERE);
 632                 return;
 633                 }
 634
 635         if (lgetuser(&USscratch,iuser)!=0) {
 636                 cprintf("%d No such user.\n",ERROR);
 637                 return;
 638                 }
 639
 640         if (op==1) {
 641                 USscratch.generation[CC->curr_rm]=CC->quickroom.QRgen;
 642                 USscratch.forget[CC->curr_rm]=(-1);
 643                 }
 644
 645         if (op==0) {
 646                 USscratch.generation[CC->curr_rm]=(-1);
 647                 USscratch.forget[CC->curr_rm]=CC->quickroom.QRgen;
 648                 }
 649
 650         lputuser(&USscratch,iuser);
 651
 652         /* post a message in Aide> saying what we just did */
 653         sprintf(bbb,"%s %s %s> by %s",
 654                 iuser,
 655                 ((op == 1) ? "invited to" : "kicked out of"),
 656                 CC->quickroom.QRname,
 657                 CC->usersupp.fullname);
 658         aide_message(bbb);
 659
 660         if ((op==0)&&((CC->quickroom.QRflags&QR_PRIVATE)==0)) {
 661                 cprintf("%d Ok. (Not a private room, <Z>ap effect only)\n",OK);
 662                 }
 663         else {
 664                 cprintf("%d Ok.\n",OK);
 665                 }
 666         return;
 667         }
 668
 669
 670 /*
 671  * forget (Zap) the current room
 672  */
 673 void cmd_forg(void) {
 674         if (!(CC->logged_in)) {
 675                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 676                 return;
 677                 }
 678
 679         if (CC->curr_rm < 0) {
 680                 cprintf("%d No current room.\n",ERROR);
 681                 return;
 682                 }
 683
 684         if (CC->curr_rm < 3) {
 685                 cprintf("%d You cannot forget this room.\n",ERROR+NOT_HERE);
 686                 return;
 687                 }
 688
 689         if (is_aide()) {
 690                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 691                 return;
 692                 }
 693
 694         lgetuser(&CC->usersupp,CC->curr_user);
 695         CC->usersupp.forget[CC->curr_rm] = CC->quickroom.QRgen;
 696         CC->usersupp.generation[CC->curr_rm] = (-1);
 697         lputuser(&CC->usersupp,CC->curr_user);
 698         cprintf("%d Ok\n",OK);
 699         CC->curr_rm = (-1);
 700         }
 701
 702 /*
 703  * Get Next Unregistered User
 704  */
 705 void cmd_gnur(void) {
 706         struct cdbdata *cdbus;
 707         struct usersupp usbuf;
 708
 709         if (!(CC->logged_in)) {
 710                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 711                 return;
 712                 }
 713
 714         if (CC->usersupp.axlevel < 6) {
 715                 cprintf("%d Higher access required.\n",
 716                         ERROR+HIGHER_ACCESS_REQUIRED);
 717                 return;
 718                 }
 719
 720         if ((CitControl.MMflags&MM_VALID)==0) {
 721                 cprintf("%d There are no unvalidated users.\n",OK);
 722                 return;
 723                 }
 724
 725         /* There are unvalidated users.  Traverse the usersupp database,
 726          * and return the first user we find that needs validation.
 727          */
 728         cdb_rewind(CDB_USERSUPP);
 729         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 730                 bzero(&usbuf, sizeof(struct usersupp));
 731                 memcpy(&usbuf, cdbus->ptr,
 732                         ( (cdbus->len > sizeof(struct usersupp)) ?
 733                         sizeof(struct usersupp) : cdbus->len) );
 734                 cdb_free(cdbus);
 735                 if ((usbuf.flags & US_NEEDVALID)
 736                    &&(usbuf.axlevel > 0)) {
 737                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 738                         return;
 739                         }
 740                 }
 741
 742         /* If we get to this point, there are no more unvalidated users.
 743          * Therefore we clear the "users need validation" flag.
 744          */
 745
 746         begin_critical_section(S_CONTROL);
 747         get_control();
 748         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 749         put_control();
 750         end_critical_section(S_CONTROL);
 751         cprintf("%d *** End of registration.\n",OK);
 752
 753
 754         }
 755
 756
 757 /*
 758  * get registration info for a user
 759  */
 760 void cmd_greg(char *who)
 761 {
 762         struct usersupp usbuf;
 763         int a,b;
 764         char pbuf[32];
 765
 766         if (!(CC->logged_in)) {
 767                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 768                 return;
 769                 }
 770
 771         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 772
 773         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 774                 cprintf("%d Higher access required.\n",
 775                         ERROR+HIGHER_ACCESS_REQUIRED);
 776                 return;
 777                 }
 778
 779         if (getuser(&usbuf,who) != 0) {
 780                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 781                 return;
 782                 }
 783
 784         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 785         cprintf("%ld\n",usbuf.usernum);
 786         cprintf("%s\n",usbuf.password);
 787         cprintf("%s\n",usbuf.USname);
 788         cprintf("%s\n",usbuf.USaddr);
 789         cprintf("%s\n%s\n%s\n",
 790                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 791         strcpy(pbuf,usbuf.USphone);
 792         usbuf.USphone[0]=0;
 793         for (a=0; a<strlen(pbuf); ++a) {
 794                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 795                         b=strlen(usbuf.USphone);
 796                         usbuf.USphone[b]=pbuf[a];
 797                         usbuf.USphone[b+1]=0;
 798                         }
 799                 }
 800         while(strlen(usbuf.USphone)<10) {
 801                 strcpy(pbuf,usbuf.USphone);
 802                 strcpy(usbuf.USphone," ");
 803                 strcat(usbuf.USphone,pbuf);
 804                 }
 805
 806         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 807                 usbuf.USphone[0],usbuf.USphone[1],
 808                 usbuf.USphone[2],usbuf.USphone[3],
 809                 usbuf.USphone[4],usbuf.USphone[5],
 810                 usbuf.USphone[6],usbuf.USphone[7],
 811                 usbuf.USphone[8],usbuf.USphone[9]);
 812
 813         cprintf("%d\n",usbuf.axlevel);
 814         cprintf("%s\n",usbuf.USemail);
 815         cprintf("000\n");
 816         }
 817
 818 /*
 819  * validate a user
 820  */
 821 void cmd_vali(char *v_args)
 822 {
 823         char user[256];
 824         int newax;
 825         struct usersupp userbuf;
 826
 827         extract(user,v_args,0);
 828         newax = extract_int(v_args,1);
 829
 830         if (!(CC->logged_in)) {
 831                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 832                 return;
 833                 }
 834
 835         if (CC->usersupp.axlevel < 6) {
 836                 cprintf("%d Higher access required.\n",
 837                         ERROR+HIGHER_ACCESS_REQUIRED);
 838                 return;
 839                 }
 840
 841         if (lgetuser(&userbuf,user)!=0) {
 842                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 843                 return;
 844                 }
 845
 846         userbuf.axlevel = newax;
 847         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 848
 849         lputuser(&userbuf,user);
 850
 851         /* If the access level was set to zero, delete the user */
 852         if (newax == 0) {
 853                 if (purge_user(user)==0) {
 854                         cprintf("%d %s Deleted.\n", OK, userbuf.fullname);
 855                         return;
 856                         }
 857                 }
 858
 859         cprintf("%d ok\n",OK);
 860         }
 861
 862
 863
 864 /*
 865  *  Traverse the user file...
 866  */
 867 void ForEachUser(void (*CallBack)(struct usersupp *EachUser)) {
 868         struct usersupp usbuf;
 869         struct cdbdata *cdbus;
 870
 871         cdb_rewind(CDB_USERSUPP);
 872
 873         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 874                 bzero(&usbuf, sizeof(struct usersupp));
 875                 memcpy(&usbuf, cdbus->ptr,
 876                         ( (cdbus->len > sizeof(struct usersupp)) ?
 877                         sizeof(struct usersupp) : cdbus->len) );
 878                 cdb_free(cdbus);
 879                 (*CallBack)(&usbuf);
 880                 }
 881         }
 882
 883
 884 /*
 885  * List one user (this works with cmd_list)
 886  */
 887 void ListThisUser(struct usersupp *usbuf) {
 888         if (usbuf->axlevel > 0) {
 889                 if ((CC->usersupp.axlevel>=6)
 890                    ||((usbuf->flags&US_UNLISTED)==0)
 891                    ||((CC->internal_pgm))) {
 892                         cprintf("%s|%d|%ld|%ld|%d|%d|",
 893                                 usbuf->fullname,
 894                                 usbuf->axlevel,
 895                                 usbuf->usernum,
 896                                 usbuf->lastcall,
 897                                 usbuf->timescalled,
 898                                 usbuf->posted);
 899                         if (CC->usersupp.axlevel >= 6)
 900                                 cprintf("%s",usbuf->password);
 901                         cprintf("\n");
 902                         }
 903                 }
 904         }
 905
 906 /*
 907  *  List users
 908  */
 909 void cmd_list(void) {
 910         cprintf("%d \n",LISTING_FOLLOWS);
 911         ForEachUser(ListThisUser);
 912         cprintf("000\n");
 913         }
 914
 915
 916 /*
 917  * enter registration info
 918  */
 919 void cmd_regi(void) {
 920         int a,b,c;
 921         char buf[256];
 922
 923         char tmpname[256];
 924         char tmpaddr[256];
 925         char tmpcity[256];
 926         char tmpstate[256];
 927         char tmpzip[256];
 928         char tmpphone[256];
 929         char tmpemail[256];
 930
 931         if (!(CC->logged_in)) {
 932                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 933                 return;
 934                 }
 935
 936         strcpy(tmpname,"");
 937         strcpy(tmpaddr,"");
 938         strcpy(tmpcity,"");
 939         strcpy(tmpstate,"");
 940         strcpy(tmpzip,"");
 941         strcpy(tmpphone,"");
 942         strcpy(tmpemail,"");
 943
 944         cprintf("%d Send registration...\n",SEND_LISTING);
 945         a=0;
 946         while (client_gets(buf), strcmp(buf,"000")) {
 947                 if (a==0) strcpy(tmpname,buf);
 948                 if (a==1) strcpy(tmpaddr,buf);
 949                 if (a==2) strcpy(tmpcity,buf);
 950                 if (a==3) strcpy(tmpstate,buf);
 951                 if (a==4) {
 952                         for (c=0; c<strlen(buf); ++c) {
 953                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 954                                         b=strlen(tmpzip);
 955                                         tmpzip[b]=buf[c];
 956                                         tmpzip[b+1]=0;
 957                                         }
 958                                 }
 959                         }
 960                 if (a==5) {
 961                         for (c=0; c<strlen(buf); ++c) {
 962                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 963                                         b=strlen(tmpphone);
 964                                         tmpphone[b]=buf[c];
 965                                         tmpphone[b+1]=0;
 966                                         }
 967                                 }
 968                         }
 969                 if (a==6) strncpy(tmpemail,buf,31);
 970                 ++a;
 971                 }
 972
 973         tmpname[29]=0;
 974         tmpaddr[24]=0;
 975         tmpcity[14]=0;
 976         tmpstate[2]=0;
 977         tmpzip[9]=0;
 978         tmpphone[10]=0;
 979         tmpemail[31]=0;
 980
 981         lgetuser(&CC->usersupp,CC->curr_user);
 982         strcpy(CC->usersupp.USname,tmpname);
 983         strcpy(CC->usersupp.USaddr,tmpaddr);
 984         strcpy(CC->usersupp.UScity,tmpcity);
 985         strcpy(CC->usersupp.USstate,tmpstate);
 986         strcpy(CC->usersupp.USzip,tmpzip);
 987         strcpy(CC->usersupp.USphone,tmpphone);
 988         strcpy(CC->usersupp.USemail,tmpemail);
 989         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
 990         lputuser(&CC->usersupp,CC->curr_user);
 991
 992         /* set global flag calling for validation */
 993         begin_critical_section(S_CONTROL);
 994         get_control();
 995         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
 996         put_control();
 997         end_critical_section(S_CONTROL);
 998         cprintf("%d *** End of registration.\n",OK);
 999         }
1000
1001
1002 /*
1003  * assorted info we need to check at login
1004  */
1005 void cmd_chek(void) {
1006         int mail = 0;
1007         int regis = 0;
1008         int vali = 0;
1009
1010         if (!(CC->logged_in)) {
1011                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1012                 return;
1013                 }
1014
1015         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
1016         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
1017
1018         if (CC->usersupp.axlevel >= 6) {
1019                 get_control();
1020                 if (CitControl.MMflags&MM_VALID) vali = 1;
1021                 }
1022
1023
1024         /* check for mail */
1025         mail = NewMailCount();
1026
1027         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
1028         }
1029
1030
1031 /*
1032  * check to see if a user exists
1033  */
1034 void cmd_qusr(char *who)
1035 {
1036         struct usersupp usbuf;
1037
1038         if (getuser(&usbuf,who) == 0) {
1039                 cprintf("%d %s\n",OK,usbuf.fullname);
1040                 }
1041         else {
1042                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1043                 }
1044         }
1045
1046
1047 /*
1048  * enter user bio
1049  */
1050 void cmd_ebio(void) {
1051         char buf[256];
1052         FILE *fp;
1053
1054         if (!(CC->logged_in)) {
1055                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1056                 return;
1057                 }
1058
1059         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1060         fp = fopen(buf,"w");
1061         if (fp == NULL) {
1062                 cprintf("%d Cannot create file\n",ERROR);
1063                 return;
1064                 }
1065         cprintf("%d  \n",SEND_LISTING);
1066         while(client_gets(buf), strcmp(buf,"000")) {
1067                 fprintf(fp,"%s\n",buf);
1068                 }
1069         fclose(fp);
1070         }
1071
1072 /*
1073  * read user bio
1074  */
1075 void cmd_rbio(char *cmdbuf)
1076 {
1077         struct usersupp ruser;
1078         char buf[256];
1079         FILE *fp;
1080
1081         extract(buf,cmdbuf,0);
1082         if (getuser(&ruser,buf)!=0) {
1083                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1084                 return;
1085                 }
1086         sprintf(buf,"./bio/%ld",ruser.usernum);
1087
1088         fp = fopen(buf,"r");
1089         if (fp == NULL) {
1090                 cprintf("%d %s has no bio on file.\n",
1091                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1092                 return;
1093                 }
1094         cprintf("%d  \n",LISTING_FOLLOWS);
1095         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1096         fclose(fp);
1097         cprintf("000\n");
1098         }
1099
1100 /*
1101  * list of users who have entered bios
1102  */
1103 void cmd_lbio(void) {
1104         char buf[256];
1105         FILE *ls;
1106         struct usersupp usbuf;
1107
1108         ls=popen("cd ./bio; ls","r");
1109         if (ls==NULL) {
1110                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1111                 return;
1112                 }
1113
1114         cprintf("%d\n",LISTING_FOLLOWS);
1115         while (fgets(buf,255,ls)!=NULL)
1116                 if (getuserbynumber(&usbuf,atol(buf))==0)
1117                         cprintf("%s\n",usbuf.fullname);
1118         pclose(ls);
1119         cprintf("000\n");
1120         }
1121
1122
1123 /*
1124  * Administrative Get User Parameters
1125  */
1126 void cmd_agup(char *cmdbuf) {
1127         struct usersupp usbuf;
1128         char requested_user[256];
1129
1130         if ( (CC->internal_pgm==0)
1131            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1132                 cprintf("%d Higher access required.\n",
1133                         ERROR + HIGHER_ACCESS_REQUIRED);
1134                 return;
1135                 }
1136
1137         extract(requested_user, cmdbuf, 0);
1138         if (getuser(&usbuf, requested_user) != 0) {
1139                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1140                 return;
1141                 }
1142
1143         cprintf("%d %s|%s|%u|%d|%d|%d|%ld\n",
1144                 OK,
1145                 usbuf.fullname,
1146                 usbuf.password,
1147                 usbuf.flags,
1148                 usbuf.timescalled,
1149                 usbuf.posted,
1150                 (int)usbuf.axlevel,
1151                 usbuf.usernum);
1152
1153         }
1154
1155
1156
1157 /*
1158  * Administrative Set User Parameters
1159  */
1160 void cmd_asup(char *cmdbuf) {
1161         struct usersupp usbuf;
1162         char requested_user[256];
1163         int np;
1164         int newax;
1165
1166         if ( (CC->internal_pgm==0)
1167            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1168                 cprintf("%d Higher access required.\n",
1169                         ERROR + HIGHER_ACCESS_REQUIRED);
1170                 return;
1171                 }
1172
1173         extract(requested_user, cmdbuf, 0);
1174         if (lgetuser(&usbuf, requested_user) != 0) {
1175                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1176                 return;
1177                 }
1178
1179         np = num_parms(cmdbuf);
1180         if (np > 1) extract(usbuf.password, cmdbuf, 1);
1181         if (np > 2) usbuf.flags = extract_int(cmdbuf, 2);
1182         if (np > 3) usbuf.timescalled = extract_int(cmdbuf, 3);
1183         if (np > 4) usbuf.posted = extract_int(cmdbuf, 4);
1184         if (np > 5) {
1185                 newax = extract_int(cmdbuf, 5);
1186                 if ((newax >=0) && (newax <= 6)) {
1187                         usbuf.axlevel = extract_int(cmdbuf, 5);
1188                         }
1189                 }
1190
1191         lputuser(&usbuf, requested_user);
1192         if (usbuf.axlevel == 0) {
1193                 if (purge_user(requested_user)==0) {
1194                         cprintf("%d %s deleted.\n", OK, requested_user);
1195                         }
1196                 }
1197         cprintf("%d Ok\n", OK);
1198         }
1199
1200
1201 /*
1202  * Count the number of new mail messages the user has
1203  */
1204 int NewMailCount() {
1205         int num_newmsgs = 0;
1206         struct cdbdata *cdbmb;
1207         int num_mails;
1208         long *mailbox;
1209         int a;
1210
1211         cdbmb = cdb_fetch(CDB_MAILBOXES, &CC->usersupp.usernum, sizeof(long));
1212         if (cdbmb != NULL) {
1213                 num_mails = cdbmb->len / sizeof(long);
1214                 mailbox = (long *) cdbmb->ptr;
1215                 if (num_mails > 0) for (a=0; a<num_mails; ++a) {
1216                         if (mailbox[a] > (CC->usersupp.lastseen[1]))
1217                                 ++num_newmsgs;
1218                         }
1219                 cdb_free(cdbmb);
1220                 }
1221         return(num_newmsgs);
1222         }