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