citadel/user_ops.c

   1 /* $Id$ */
   2
   3 /* needed to properly enable crypt() stuff on some systems */
   4 #define _XOPEN_SOURCE
   5 /* needed for str[n]casecmp() on some systems if the above is defined */
   6 #define _XOPEN_SOURCE_EXTENDED
   7 /* needed to enable threads on some systems if the above are defined */
   8 #define _POSIX_C_SOURCE 199506L
   9
  10 #include <stdlib.h>
  11 #include <unistd.h>
  12 #include <stdio.h>
  13 #include <fcntl.h>
  14 #include <signal.h>
  15 #include <pwd.h>
  16 #include <sys/types.h>
  17 #include <sys/time.h>
  18 #include <string.h>
  19 #include <syslog.h>
  20 #include <limits.h>
  21 #include <pthread.h>
  22 #include "citadel.h"
  23 #include "server.h"
  24 #include "database.h"
  25 #include "user_ops.h"
  26 #include "sysdep_decls.h"
  27 #include "support.h"
  28 #include "room_ops.h"
  29 #include "logging.h"
  30 #include "file_ops.h"
  31 #include "control.h"
  32 #include "msgbase.h"
  33 #include "config.h"
  34 #include "dynloader.h"
  35 #include "sysdep.h"
  36
  37
  38 /*
  39  * getuser()  -  retrieve named user into supplied buffer.
  40  *               returns 0 on success
  41  */
  42 int getuser(struct usersupp *usbuf, char name[]) {
  43
  44         char lowercase_name[32];
  45         int a;
  46         struct cdbdata *cdbus;
  47
  48         bzero(usbuf, sizeof(struct usersupp));
  49         for (a=0; a<=strlen(name); ++a) {
  50                 lowercase_name[a] = tolower(name[a]);
  51                 }
  52
  53         cdbus = cdb_fetch(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
  54         if (cdbus == NULL) {
  55                 return(1);      /* user not found */
  56                 }
  57
  58         memcpy(usbuf, cdbus->ptr,
  59                 ( (cdbus->len > sizeof(struct usersupp)) ?
  60                 sizeof(struct usersupp) : cdbus->len) );
  61         cdb_free(cdbus);
  62         return(0);
  63         }
  64
  65
  66 /*
  67  * lgetuser()  -  same as getuser() but locks the record
  68  */
  69 int lgetuser(struct usersupp *usbuf, char *name)
  70 {
  71         int retcode;
  72
  73         retcode = getuser(usbuf,name);
  74         if (retcode == 0) {
  75                 begin_critical_section(S_USERSUPP);
  76                 }
  77         return(retcode);
  78         }
  79
  80
  81 /*
  82  * putuser()  -  write user buffer into the correct place on disk
  83  */
  84 void putuser(struct usersupp *usbuf, char *name)
  85 {
  86         char lowercase_name[32];
  87         int a;
  88
  89         for (a=0; a<=strlen(name); ++a) {
  90                 lowercase_name[a] = tolower(name[a]);
  91                 }
  92
  93         cdb_store(CDB_USERSUPP,
  94                 lowercase_name, strlen(lowercase_name),
  95                 usbuf, sizeof(struct usersupp));
  96
  97         }
  98
  99
 100 /*
 101  * lputuser()  -  same as putuser() but locks the record
 102  */
 103 void lputuser(struct usersupp *usbuf, char *name) {
 104         putuser(usbuf,name);
 105         end_critical_section(S_USERSUPP);
 106         }
 107
 108 /*
 109  * Index-generating function used by Ctdl[Get|Set]Relationship
 110  */
 111 int GenerateRelationshipIndex(  char *IndexBuf,
 112                                 struct usersupp *rel_user,
 113                                 struct quickroom *rel_room) {
 114
 115         struct {
 116                 long RoomID;
 117                 long RoomGen;
 118                 long UserID;
 119                 } TheIndex;
 120
 121         TheIndex.RoomID = rel_room->QRnumber;
 122         TheIndex.RoomGen = rel_room->QRgen;
 123         TheIndex.UserID = rel_user->usernum;
 124
 125         memcpy(IndexBuf, &TheIndex, sizeof(TheIndex));
 126         return(sizeof(TheIndex));
 127         }
 128
 129 /*
 130  * Define a relationship between a user and a room
 131  */
 132 void CtdlSetRelationship(struct visit *newvisit,
 133                         struct usersupp *rel_user,
 134                         struct quickroom *rel_room) {
 135
 136         char IndexBuf[32];
 137         int IndexLen;
 138
 139         /* We don't use these in Citadel because they're implicit by the
 140          * index, but they must be present if the database is exported.
 141          */
 142         newvisit->v_roomnum = rel_room->QRnumber;
 143         newvisit->v_roomgen = rel_room->QRgen;
 144         newvisit->v_usernum = rel_user->usernum;
 145
 146         /* Generate an index */
 147         IndexLen = GenerateRelationshipIndex(IndexBuf, rel_user, rel_room);
 148
 149         /* Store the record */
 150         cdb_store(CDB_VISIT, IndexBuf, IndexLen,
 151                 newvisit, sizeof(struct visit)
 152                 );
 153         }
 154
 155 /*
 156  * Locate a relationship between a user and a room
 157  */
 158 void CtdlGetRelationship(struct visit *vbuf,
 159                         struct usersupp *rel_user,
 160                         struct quickroom *rel_room) {
 161
 162         char IndexBuf[32];
 163         int IndexLen;
 164         struct cdbdata *cdbvisit;
 165
 166         /* Generate an index */
 167         IndexLen = GenerateRelationshipIndex(IndexBuf, rel_user, rel_room);
 168
 169         /* Clear out the buffer */
 170         bzero(vbuf, sizeof(struct visit));
 171
 172         cdbvisit = cdb_fetch(CDB_VISIT, IndexBuf, IndexLen);
 173         if (cdbvisit != NULL) {
 174                 memcpy(vbuf, cdbvisit->ptr,
 175                         ( (cdbvisit->len > sizeof(struct visit)) ?
 176                         sizeof(struct visit) : cdbvisit->len) );
 177                 cdb_free(cdbvisit);
 178                 return;
 179                 }
 180         }
 181
 182
 183 void PurgeStaleRelationships(void) {
 184
 185         /********* REWRITE THIS FOR GLOBAL USE AND MOVE IT TO THE PURGE MODULE
 186         struct cdbdata *cdbvisit;
 187         struct visit *visits;
 188         struct quickroom qrbuf;
 189         int num_visits;
 190         int a, purge;
 191
 192         cdbvisit = cdb_fetch(CDB_VISIT, &CC->usersupp.usernum, sizeof(long));
 193         if (cdbvisit != NULL) {
 194                 if ((num_visits = cdbvisit->len / sizeof(struct visit)) == 0) {
 195                         cdb_free(cdbvisit);
 196                         return;
 197                         }
 198                 visits = (struct visit *)
 199                         malloc(num_visits * sizeof(struct visit));
 200                 memcpy(visits, cdbvisit->ptr,
 201                         (num_visits * sizeof(struct visit)));
 202                 cdb_free(cdbvisit);
 203                 }
 204         else return;
 205
 206         for (a=0; a<num_visits; ++a) {
 207                 if (getroom(&qrbuf, visits[a].v_roomname)!=0) {
 208                         purge = 1;
 209                         }
 210                 else if (qrbuf.QRgen != visits[a].v_generation) {
 211                         purge = 1;
 212                         }
 213                 else {
 214                         purge = 0;
 215                         }
 216
 217                 if (purge) {
 218                         memcpy(&visits[a], &visits[a+1],
 219                                 (((num_visits-a)-1) * sizeof(struct visit)) );
 220                         --num_visits;
 221                         }
 222
 223                 }
 224
 225         cdb_store(CDB_VISIT, &CC->usersupp.usernum, sizeof(long),
 226                         visits, (num_visits * sizeof(struct visit)));
 227         free(visits);
 228         **************/
 229         }
 230
 231
 232
 233 void MailboxName(char *buf, struct usersupp *who, char *prefix) {
 234         sprintf(buf, "%010ld.%s", who->usernum, prefix);
 235         }
 236
 237
 238 /*
 239  * Is the user currently logged in an Aide?
 240  */
 241 int is_aide(void) {
 242         if (CC->usersupp.axlevel >= 6) return(1);
 243         else return(0);
 244         }
 245
 246
 247 /*
 248  * Is the user currently logged in an Aide *or* the room aide for this room?
 249  */
 250 int is_room_aide(void) {
 251         if ( (CC->usersupp.axlevel >= 6)
 252            || (CC->quickroom.QRroomaide == CC->usersupp.usernum) ) {
 253                 return(1);
 254                 }
 255         else {
 256                 return(0);
 257                 }
 258         }
 259
 260 /*
 261  * getuserbynumber()  -  get user by number
 262  *                       returns 0 if user was found
 263  */
 264 int getuserbynumber(struct usersupp *usbuf, long int number)
 265 {
 266         struct cdbdata *cdbus;
 267
 268         cdb_rewind(CDB_USERSUPP);
 269
 270         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 271                 bzero(usbuf, sizeof(struct usersupp));
 272                 memcpy(usbuf, cdbus->ptr,
 273                         ( (cdbus->len > sizeof(struct usersupp)) ?
 274                         sizeof(struct usersupp) : cdbus->len) );
 275                 cdb_free(cdbus);
 276                 if (usbuf->usernum == number) {
 277                         return(0);
 278                         }
 279                 }
 280         return(-1);
 281         }
 282
 283
 284 /*
 285  * USER cmd
 286  */
 287 void cmd_user(char *cmdbuf)
 288 {
 289         char username[256];
 290         char autoname[256];
 291         int found_user = 0;
 292         struct passwd *p;
 293         int a;
 294
 295         extract(username,cmdbuf,0);
 296         username[25] = 0;
 297         strproc(username);
 298
 299         if ((CC->logged_in)) {
 300                 cprintf("%d Already logged in.\n",ERROR);
 301                 return;
 302                 }
 303
 304         found_user = getuser(&CC->usersupp,username);
 305         if (found_user != 0) {
 306                 p = (struct passwd *)getpwnam(username);
 307                 if (p!=NULL) {
 308                         strcpy(autoname,p->pw_gecos);
 309                         for (a=0; a<strlen(autoname); ++a)
 310                                 if (autoname[a]==',') autoname[a]=0;
 311                         found_user = getuser(&CC->usersupp,autoname);
 312                         }
 313                 }
 314         if (found_user == 0) {
 315                 if (((CC->nologin)) && (CC->usersupp.axlevel < 6)) {
 316                         cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 317                         ERROR+MAX_SESSIONS_EXCEEDED,
 318                         config.c_nodename,config.c_maxsessions);
 319                         }
 320                 else {
 321                         strcpy(CC->curr_user,CC->usersupp.fullname);
 322                         cprintf("%d Password required for %s\n",
 323                                 MORE_DATA,CC->curr_user);
 324                         }
 325                 }
 326         else {
 327                 cprintf("%d %s not found.\n",ERROR,username);
 328                 }
 329         }
 330
 331
 332
 333 /*
 334  * session startup code which is common to both cmd_pass() and cmd_newu()
 335  */
 336 void session_startup(void) {
 337         syslog(LOG_NOTICE,"user <%s> logged in",CC->curr_user);
 338
 339         lgetuser(&CC->usersupp,CC->curr_user);
 340         ++(CC->usersupp.timescalled);
 341         CC->fake_username[0] = '\0';
 342         CC->fake_postname[0] = '\0';
 343         CC->fake_hostname[0] = '\0';
 344         CC->fake_roomname[0] = '\0';
 345         CC->last_pager[0] = '\0';
 346         time(&CC->usersupp.lastcall);
 347
 348         /* If this user's name is the name of the system administrator
 349          * (as specified in setup), automatically assign access level 6.
 350          */
 351         if (!strcasecmp(CC->usersupp.fullname, config.c_sysadm)) {
 352                 CC->usersupp.axlevel = 6;
 353                 }
 354
 355         lputuser(&CC->usersupp,CC->curr_user);
 356
 357         /* Run any cleanup routines registered by loadable modules */
 358         PerformSessionHooks(EVT_LOGIN);
 359
 360         cprintf("%d %s|%d|%d|%d|%u|%ld\n",OK,CC->usersupp.fullname,CC->usersupp.axlevel,
 361                 CC->usersupp.timescalled,CC->usersupp.posted,CC->usersupp.flags,
 362                 CC->usersupp.usernum);
 363         usergoto(BASEROOM,0);           /* Enter the lobby */
 364         rec_log(CL_LOGIN,CC->curr_user);
 365         }
 366
 367
 368 /*
 369  * misc things to be taken care of when a user is logged out
 370  */
 371 void logout(struct CitContext *who)
 372 {
 373         who->logged_in = 0;
 374         if (who->download_fp != NULL) {
 375                 fclose(who->download_fp);
 376                 who->download_fp = NULL;
 377                 }
 378         if (who->upload_fp != NULL) {
 379                 abort_upl(who);
 380                 }
 381
 382         /* Do modular stuff... */
 383         PerformSessionHooks(EVT_LOGOUT);
 384         }
 385
 386
 387 void cmd_pass(char *buf)
 388 {
 389         char password[256];
 390         int code;
 391         struct passwd *p;
 392
 393         extract(password,buf,0);
 394
 395         if ((CC->logged_in)) {
 396                 cprintf("%d Already logged in.\n",ERROR);
 397                 return;
 398                 }
 399         if (!strcmp(CC->curr_user,"")) {
 400                 cprintf("%d You must send a name with USER first.\n",ERROR);
 401                 return;
 402                 }
 403         if (getuser(&CC->usersupp,CC->curr_user)) {
 404                 cprintf("%d Can't find user record!\n",ERROR+INTERNAL_ERROR);
 405                 return;
 406                 }
 407
 408         code = (-1);
 409         if (CC->usersupp.USuid == BBSUID) {
 410                 strproc(password);
 411                 strproc(CC->usersupp.password);
 412                 code = strcasecmp(CC->usersupp.password,password);
 413                 }
 414         else {
 415                 p = (struct passwd *)getpwuid(CC->usersupp.USuid);
 416 #ifdef ENABLE_AUTOLOGIN
 417                 if (p!=NULL) {
 418                         if (!strcmp(p->pw_passwd,
 419                            (char *)crypt(password,p->pw_passwd))) {
 420                                 code = 0;
 421                                 lgetuser(&CC->usersupp, CC->curr_user);
 422                                 strcpy(CC->usersupp.password, password);
 423                                 lputuser(&CC->usersupp, CC->curr_user);
 424                                 }
 425                         }
 426 #endif
 427                 }
 428
 429         if (!code) {
 430                 (CC->logged_in) = 1;
 431                 session_startup();
 432                 }
 433         else {
 434                 cprintf("%d Wrong password.\n",ERROR);
 435                 rec_log(CL_BADPW,CC->curr_user);
 436                 }
 437         }
 438
 439
 440 /*
 441  * Delete a user record *and* all of its related resources.
 442  */
 443 int purge_user(char pname[]) {
 444         char filename[64];
 445         char mailboxname[ROOMNAMELEN];
 446         struct usersupp usbuf;
 447         struct quickroom qrbuf;
 448         char lowercase_name[32];
 449         int a;
 450
 451         for (a=0; a<=strlen(pname); ++a) {
 452                 lowercase_name[a] = tolower(pname[a]);
 453                 }
 454
 455         if (getuser(&usbuf, pname) != 0) {
 456                 lprintf(5, "Cannot purge user <%s> - not found\n", pname);
 457                 return(ERROR+NO_SUCH_USER);
 458                 }
 459
 460         lprintf(5, "Deleting user <%s>\n", pname);
 461
 462         /* FIX   Don't delete a user who is currently logged in. */
 463
 464         /* Perform any purge functions registered by server extensions */
 465         PerformUserHooks(usbuf.fullname, usbuf.usernum, EVT_PURGEUSER);
 466
 467         /* delete any existing user/room relationships */
 468         cdb_delete(CDB_VISIT, &usbuf.usernum, sizeof(long));
 469
 470         /* Delete the user's mailbox and its contents */
 471         MailboxName(mailboxname, &usbuf, MAILROOM);
 472         if (getroom(&qrbuf, mailboxname)==0) {
 473                 delete_room(&qrbuf);
 474                 }
 475
 476         /* delete the userlog entry */
 477         cdb_delete(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
 478
 479         /* remove the user's bio file */
 480         sprintf(filename, "./bio/%ld", usbuf.usernum);
 481         unlink(filename);
 482
 483         /* remove the user's picture */
 484         sprintf(filename, "./userpics/%ld.gif", usbuf.usernum);
 485         unlink(filename);
 486
 487         return(0);
 488         }
 489
 490
 491 /*
 492  * create_user()  -  back end processing to create a new user
 493  */
 494 int create_user(char *newusername)
 495 {
 496         struct usersupp usbuf;
 497         int a;
 498         struct passwd *p = NULL;
 499         char username[64];
 500         char mailboxname[ROOMNAMELEN];
 501
 502         strcpy(username, newusername);
 503         strproc(username);
 504
 505 #ifdef ENABLE_AUTOLOGIN
 506         p = (struct passwd *)getpwnam(username);
 507 #endif
 508         if (p != NULL) {
 509                 strcpy(username, p->pw_gecos);
 510                 for (a=0; a<strlen(username); ++a) {
 511                         if (username[a] == ',') username[a] = 0;
 512                         }
 513                 CC->usersupp.USuid = p->pw_uid;
 514                 }
 515         else {
 516                 CC->usersupp.USuid = BBSUID;
 517                 }
 518
 519         if (!getuser(&usbuf,username)) {
 520                 return(ERROR+ALREADY_EXISTS);
 521                 }
 522
 523         strcpy(CC->curr_user,username);
 524         strcpy(CC->usersupp.fullname,username);
 525         strcpy(CC->usersupp.password,"");
 526         (CC->logged_in) = 1;
 527
 528         /* These are the default flags on new accounts */
 529         CC->usersupp.flags =
 530                 US_NEEDVALID|US_LASTOLD|US_DISAPPEAR|US_PAGINATOR|US_FLOORS;
 531
 532         CC->usersupp.timescalled = 0;
 533         CC->usersupp.posted = 0;
 534         CC->usersupp.axlevel = config.c_initax;
 535         CC->usersupp.USscreenwidth = 80;
 536         CC->usersupp.USscreenheight = 24;
 537         time(&CC->usersupp.lastcall);
 538         strcpy(CC->usersupp.USname, "");
 539         strcpy(CC->usersupp.USaddr, "");
 540         strcpy(CC->usersupp.UScity, "");
 541         strcpy(CC->usersupp.USstate, "");
 542         strcpy(CC->usersupp.USzip, "");
 543         strcpy(CC->usersupp.USphone, "");
 544
 545         /* fetch a new user number */
 546         CC->usersupp.usernum = get_new_user_number();
 547
 548         if (CC->usersupp.usernum == 1L) {
 549                 CC->usersupp.axlevel = 6;
 550                 }
 551
 552         /* add user to userlog */
 553         putuser(&CC->usersupp,CC->curr_user);
 554         if (getuser(&CC->usersupp,CC->curr_user)) {
 555                 return(ERROR+INTERNAL_ERROR);
 556                 }
 557
 558         /* give the user a private mailbox */
 559         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
 560         create_room(mailboxname, 4, "", 0);
 561
 562         rec_log(CL_NEWUSER,CC->curr_user);
 563         return(0);
 564         }
 565
 566
 567
 568
 569 /*
 570  * cmd_newu()  -  create a new user account
 571  */
 572 void cmd_newu(char *cmdbuf)
 573 {
 574         int a;
 575         char username[256];
 576
 577         if ((CC->logged_in)) {
 578                 cprintf("%d Already logged in.\n",ERROR);
 579                 return;
 580                 }
 581
 582         if ((CC->nologin)) {
 583                 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 584                 ERROR+MAX_SESSIONS_EXCEEDED,
 585                 config.c_nodename,config.c_maxsessions);
 586                 }
 587
 588         extract(username,cmdbuf,0);
 589         username[25] = 0;
 590         strproc(username);
 591
 592         if (strlen(username)==0) {
 593                 cprintf("%d You must supply a user name.\n",ERROR);
 594                 return;
 595                 }
 596
 597         a = create_user(username);
 598         if ((!strcasecmp(username, "bbs")) ||
 599             (!strcasecmp(username, "new")) ||
 600             (!strcasecmp(username, ".")))
 601         {
 602            cprintf("%d '%s' is an invalid login name.\n", ERROR);
 603            return;
 604         }
 605         if (a==ERROR+ALREADY_EXISTS) {
 606                 cprintf("%d '%s' already exists.\n",
 607                         ERROR+ALREADY_EXISTS,username);
 608                 return;
 609                 }
 610         else if (a==ERROR+INTERNAL_ERROR) {
 611                 cprintf("%d Internal error - user record disappeared?\n",
 612                         ERROR+INTERNAL_ERROR);
 613                 return;
 614                 }
 615         else if (a==0) {
 616                 session_startup();
 617                 }
 618         else {
 619                 cprintf("%d unknown error\n",ERROR);
 620                 }
 621         rec_log(CL_NEWUSER,CC->curr_user);
 622         }
 623
 624
 625
 626 /*
 627  * set password
 628  */
 629 void cmd_setp(char *new_pw)
 630 {
 631         if (!(CC->logged_in)) {
 632                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 633                 return;
 634                 }
 635         if (CC->usersupp.USuid != BBSUID) {
 636                 cprintf("%d Not allowed.  Use the 'passwd' command.\n",ERROR);
 637                 return;
 638                 }
 639         strproc(new_pw);
 640         if (strlen(new_pw)==0) {
 641                 cprintf("%d Password unchanged.\n",OK);
 642                 return;
 643                 }
 644         lgetuser(&CC->usersupp,CC->curr_user);
 645         strcpy(CC->usersupp.password,new_pw);
 646         lputuser(&CC->usersupp,CC->curr_user);
 647         cprintf("%d Password changed.\n",OK);
 648         rec_log(CL_PWCHANGE,CC->curr_user);
 649         PerformSessionHooks(EVT_SETPASS);
 650         }
 651
 652 /*
 653  * get user parameters
 654  */
 655 void cmd_getu(void) {
 656         if (!(CC->logged_in)) {
 657                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 658                 return;
 659                 }
 660         getuser(&CC->usersupp,CC->curr_user);
 661         cprintf("%d %d|%d|%d\n",
 662                 OK,
 663                 CC->usersupp.USscreenwidth,
 664                 CC->usersupp.USscreenheight,
 665                 (CC->usersupp.flags & US_USER_SET)
 666                 );
 667         }
 668
 669 /*
 670  * set user parameters
 671  */
 672 void cmd_setu(char *new_parms)
 673 {
 674
 675         if (num_parms(new_parms)!=3) {
 676                 cprintf("%d Usage error.\n",ERROR);
 677                 return;
 678                 }
 679         if (!(CC->logged_in)) {
 680                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 681                 return;
 682                 }
 683         lgetuser(&CC->usersupp,CC->curr_user);
 684         CC->usersupp.USscreenwidth = extract_int(new_parms,0);
 685         CC->usersupp.USscreenheight = extract_int(new_parms,1);
 686         CC->usersupp.flags = CC->usersupp.flags & (~US_USER_SET);
 687         CC->usersupp.flags = CC->usersupp.flags |
 688                 (extract_int(new_parms,2) & US_USER_SET);
 689         lputuser(&CC->usersupp,CC->curr_user);
 690         cprintf("%d Ok\n",OK);
 691         }
 692
 693 /*
 694  * set last read pointer
 695  */
 696 void cmd_slrp(char *new_ptr)
 697 {
 698         long newlr;
 699         struct visit vbuf;
 700
 701         if (!(CC->logged_in)) {
 702                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 703                 return;
 704                 }
 705
 706         if (!strncasecmp(new_ptr,"highest",7)) {
 707                 newlr = CC->quickroom.QRhighest;
 708                 }
 709         else {
 710                 newlr = atol(new_ptr);
 711                 }
 712
 713         lgetuser(&CC->usersupp, CC->curr_user);
 714
 715         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 716         vbuf.v_lastseen = newlr;
 717         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 718
 719         lputuser(&CC->usersupp, CC->curr_user);
 720         cprintf("%d %ld\n",OK,newlr);
 721         }
 722
 723
 724 /*
 725  * INVT and KICK commands
 726  */
 727 void cmd_invt_kick(char *iuser, int op)
 728                         /* user name */
 729         {               /* 1 = invite, 0 = kick out */
 730         struct usersupp USscratch;
 731         char bbb[256];
 732         struct visit vbuf;
 733
 734         if (!(CC->logged_in)) {
 735                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 736                 return;
 737                 }
 738
 739         if (is_room_aide()==0) {
 740                 cprintf("%d Higher access required.\n",
 741                         ERROR+HIGHER_ACCESS_REQUIRED);
 742                 return;
 743                 }
 744
 745         if (lgetuser(&USscratch,iuser)!=0) {
 746                 cprintf("%d No such user.\n",ERROR);
 747                 return;
 748                 }
 749
 750         CtdlGetRelationship(&vbuf, &USscratch, &CC->quickroom);
 751
 752         if (op==1) {
 753                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
 754                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
 755                 }
 756
 757         if (op==0) {
 758                 vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
 759                 vbuf.v_flags = vbuf.v_flags | V_FORGET | V_LOCKOUT;
 760                 }
 761
 762         CtdlSetRelationship(&vbuf, &USscratch, &CC->quickroom);
 763
 764         lputuser(&USscratch,iuser);
 765
 766         /* post a message in Aide> saying what we just did */
 767         sprintf(bbb,"%s %s %s> by %s",
 768                 iuser,
 769                 ((op == 1) ? "invited to" : "kicked out of"),
 770                 CC->quickroom.QRname,
 771                 CC->usersupp.fullname);
 772         aide_message(bbb);
 773
 774         cprintf("%d %s %s %s.\n",
 775                 OK, iuser,
 776                 ((op == 1) ? "invited to" : "kicked out of"),
 777                 CC->quickroom.QRname);
 778         return;
 779         }
 780
 781
 782 /*
 783  * forget (Zap) the current room
 784  */
 785 void cmd_forg(void) {
 786         struct visit vbuf;
 787
 788         if (!(CC->logged_in)) {
 789                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 790                 return;
 791                 }
 792
 793         if (is_aide()) {
 794                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 795                 return;
 796                 }
 797
 798         lgetuser(&CC->usersupp,CC->curr_user);
 799         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 800
 801         vbuf.v_flags = vbuf.v_flags | V_FORGET;
 802
 803         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 804         lputuser(&CC->usersupp,CC->curr_user);
 805         cprintf("%d Ok\n",OK);
 806         usergoto(BASEROOM, 0);
 807         }
 808
 809 /*
 810  * Get Next Unregistered User
 811  */
 812 void cmd_gnur(void) {
 813         struct cdbdata *cdbus;
 814         struct usersupp usbuf;
 815
 816         if (!(CC->logged_in)) {
 817                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 818                 return;
 819                 }
 820
 821         if (CC->usersupp.axlevel < 6) {
 822                 cprintf("%d Higher access required.\n",
 823                         ERROR+HIGHER_ACCESS_REQUIRED);
 824                 return;
 825                 }
 826
 827         if ((CitControl.MMflags&MM_VALID)==0) {
 828                 cprintf("%d There are no unvalidated users.\n",OK);
 829                 return;
 830                 }
 831
 832         /* There are unvalidated users.  Traverse the usersupp database,
 833          * and return the first user we find that needs validation.
 834          */
 835         cdb_rewind(CDB_USERSUPP);
 836         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 837                 bzero(&usbuf, sizeof(struct usersupp));
 838                 memcpy(&usbuf, cdbus->ptr,
 839                         ( (cdbus->len > sizeof(struct usersupp)) ?
 840                         sizeof(struct usersupp) : cdbus->len) );
 841                 cdb_free(cdbus);
 842                 if ((usbuf.flags & US_NEEDVALID)
 843                    &&(usbuf.axlevel > 0)) {
 844                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 845                         return;
 846                         }
 847                 }
 848
 849         /* If we get to this point, there are no more unvalidated users.
 850          * Therefore we clear the "users need validation" flag.
 851          */
 852
 853         begin_critical_section(S_CONTROL);
 854         get_control();
 855         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 856         put_control();
 857         end_critical_section(S_CONTROL);
 858         cprintf("%d *** End of registration.\n",OK);
 859
 860
 861         }
 862
 863
 864 /*
 865  * get registration info for a user
 866  */
 867 void cmd_greg(char *who)
 868 {
 869         struct usersupp usbuf;
 870         int a,b;
 871         char pbuf[32];
 872
 873         if (!(CC->logged_in)) {
 874                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 875                 return;
 876                 }
 877
 878         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 879
 880         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 881                 cprintf("%d Higher access required.\n",
 882                         ERROR+HIGHER_ACCESS_REQUIRED);
 883                 return;
 884                 }
 885
 886         if (getuser(&usbuf,who) != 0) {
 887                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 888                 return;
 889                 }
 890
 891         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 892         cprintf("%ld\n",usbuf.usernum);
 893         cprintf("%s\n",usbuf.password);
 894         cprintf("%s\n",usbuf.USname);
 895         cprintf("%s\n",usbuf.USaddr);
 896         cprintf("%s\n%s\n%s\n",
 897                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 898         strcpy(pbuf,usbuf.USphone);
 899         usbuf.USphone[0]=0;
 900         for (a=0; a<strlen(pbuf); ++a) {
 901                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 902                         b=strlen(usbuf.USphone);
 903                         usbuf.USphone[b]=pbuf[a];
 904                         usbuf.USphone[b+1]=0;
 905                         }
 906                 }
 907         while(strlen(usbuf.USphone)<10) {
 908                 strcpy(pbuf,usbuf.USphone);
 909                 strcpy(usbuf.USphone," ");
 910                 strcat(usbuf.USphone,pbuf);
 911                 }
 912
 913         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 914                 usbuf.USphone[0],usbuf.USphone[1],
 915                 usbuf.USphone[2],usbuf.USphone[3],
 916                 usbuf.USphone[4],usbuf.USphone[5],
 917                 usbuf.USphone[6],usbuf.USphone[7],
 918                 usbuf.USphone[8],usbuf.USphone[9]);
 919
 920         cprintf("%d\n",usbuf.axlevel);
 921         cprintf("%s\n",usbuf.USemail);
 922         cprintf("000\n");
 923         }
 924
 925 /*
 926  * validate a user
 927  */
 928 void cmd_vali(char *v_args)
 929 {
 930         char user[256];
 931         int newax;
 932         struct usersupp userbuf;
 933
 934         extract(user,v_args,0);
 935         newax = extract_int(v_args,1);
 936
 937         if (!(CC->logged_in)) {
 938                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 939                 return;
 940                 }
 941
 942         if (CC->usersupp.axlevel < 6) {
 943                 cprintf("%d Higher access required.\n",
 944                         ERROR+HIGHER_ACCESS_REQUIRED);
 945                 return;
 946                 }
 947
 948         if (lgetuser(&userbuf,user)!=0) {
 949                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 950                 return;
 951                 }
 952
 953         userbuf.axlevel = newax;
 954         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 955
 956         lputuser(&userbuf,user);
 957
 958         /* If the access level was set to zero, delete the user */
 959         if (newax == 0) {
 960                 if (purge_user(user)==0) {
 961                         cprintf("%d %s Deleted.\n", OK, userbuf.fullname);
 962                         return;
 963                         }
 964                 }
 965
 966         cprintf("%d ok\n",OK);
 967         }
 968
 969
 970
 971 /*
 972  *  Traverse the user file...
 973  */
 974 void ForEachUser(void (*CallBack)(struct usersupp *EachUser)) {
 975         struct usersupp usbuf;
 976         struct cdbdata *cdbus;
 977
 978         cdb_rewind(CDB_USERSUPP);
 979
 980         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 981                 bzero(&usbuf, sizeof(struct usersupp));
 982                 memcpy(&usbuf, cdbus->ptr,
 983                         ( (cdbus->len > sizeof(struct usersupp)) ?
 984                         sizeof(struct usersupp) : cdbus->len) );
 985                 cdb_free(cdbus);
 986                 (*CallBack)(&usbuf);
 987                 }
 988         }
 989
 990
 991 /*
 992  * List one user (this works with cmd_list)
 993  */
 994 void ListThisUser(struct usersupp *usbuf) {
 995         if (usbuf->axlevel > 0) {
 996                 if ((CC->usersupp.axlevel>=6)
 997                    ||((usbuf->flags&US_UNLISTED)==0)
 998                    ||((CC->internal_pgm))) {
 999                         cprintf("%s|%d|%ld|%ld|%d|%d|",
1000                                 usbuf->fullname,
1001                                 usbuf->axlevel,
1002                                 usbuf->usernum,
1003                                 usbuf->lastcall,
1004                                 usbuf->timescalled,
1005                                 usbuf->posted);
1006                         if (CC->usersupp.axlevel >= 6)
1007                                 cprintf("%s",usbuf->password);
1008                         cprintf("\n");
1009                         }
1010                 }
1011         }
1012
1013 /*
1014  *  List users
1015  */
1016 void cmd_list(void) {
1017         cprintf("%d \n",LISTING_FOLLOWS);
1018         ForEachUser(ListThisUser);
1019         cprintf("000\n");
1020         }
1021
1022
1023 /*
1024  * enter registration info
1025  */
1026 void cmd_regi(void) {
1027         int a,b,c;
1028         char buf[256];
1029
1030         char tmpname[256];
1031         char tmpaddr[256];
1032         char tmpcity[256];
1033         char tmpstate[256];
1034         char tmpzip[256];
1035         char tmpphone[256];
1036         char tmpemail[256];
1037
1038         if (!(CC->logged_in)) {
1039                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1040                 return;
1041                 }
1042
1043         strcpy(tmpname,"");
1044         strcpy(tmpaddr,"");
1045         strcpy(tmpcity,"");
1046         strcpy(tmpstate,"");
1047         strcpy(tmpzip,"");
1048         strcpy(tmpphone,"");
1049         strcpy(tmpemail,"");
1050
1051         cprintf("%d Send registration...\n",SEND_LISTING);
1052         a=0;
1053         while (client_gets(buf), strcmp(buf,"000")) {
1054                 if (a==0) strcpy(tmpname,buf);
1055                 if (a==1) strcpy(tmpaddr,buf);
1056                 if (a==2) strcpy(tmpcity,buf);
1057                 if (a==3) strcpy(tmpstate,buf);
1058                 if (a==4) {
1059                         for (c=0; c<strlen(buf); ++c) {
1060                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
1061                                         b=strlen(tmpzip);
1062                                         tmpzip[b]=buf[c];
1063                                         tmpzip[b+1]=0;
1064                                         }
1065                                 }
1066                         }
1067                 if (a==5) {
1068                         for (c=0; c<strlen(buf); ++c) {
1069                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
1070                                         b=strlen(tmpphone);
1071                                         tmpphone[b]=buf[c];
1072                                         tmpphone[b+1]=0;
1073                                         }
1074                                 }
1075                         }
1076                 if (a==6) strncpy(tmpemail,buf,31);
1077                 ++a;
1078                 }
1079
1080         tmpname[29]=0;
1081         tmpaddr[24]=0;
1082         tmpcity[14]=0;
1083         tmpstate[2]=0;
1084         tmpzip[9]=0;
1085         tmpphone[10]=0;
1086         tmpemail[31]=0;
1087
1088         lgetuser(&CC->usersupp,CC->curr_user);
1089         strcpy(CC->usersupp.USname,tmpname);
1090         strcpy(CC->usersupp.USaddr,tmpaddr);
1091         strcpy(CC->usersupp.UScity,tmpcity);
1092         strcpy(CC->usersupp.USstate,tmpstate);
1093         strcpy(CC->usersupp.USzip,tmpzip);
1094         strcpy(CC->usersupp.USphone,tmpphone);
1095         strcpy(CC->usersupp.USemail,tmpemail);
1096         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
1097         lputuser(&CC->usersupp,CC->curr_user);
1098
1099         /* set global flag calling for validation */
1100         begin_critical_section(S_CONTROL);
1101         get_control();
1102         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
1103         put_control();
1104         end_critical_section(S_CONTROL);
1105         cprintf("%d *** End of registration.\n",OK);
1106         }
1107
1108
1109 /*
1110  * assorted info we need to check at login
1111  */
1112 void cmd_chek(void) {
1113         int mail = 0;
1114         int regis = 0;
1115         int vali = 0;
1116
1117         if (!(CC->logged_in)) {
1118                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1119                 return;
1120                 }
1121
1122         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
1123         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
1124
1125         if (CC->usersupp.axlevel >= 6) {
1126                 get_control();
1127                 if (CitControl.MMflags&MM_VALID) vali = 1;
1128                 }
1129
1130
1131         /* check for mail */
1132         mail = NewMailCount();
1133
1134         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
1135         }
1136
1137
1138 /*
1139  * check to see if a user exists
1140  */
1141 void cmd_qusr(char *who)
1142 {
1143         struct usersupp usbuf;
1144
1145         if (getuser(&usbuf,who) == 0) {
1146                 cprintf("%d %s\n",OK,usbuf.fullname);
1147                 }
1148         else {
1149                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1150                 }
1151         }
1152
1153
1154 /*
1155  * enter user bio
1156  */
1157 void cmd_ebio(void) {
1158         char buf[256];
1159         FILE *fp;
1160
1161         if (!(CC->logged_in)) {
1162                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1163                 return;
1164                 }
1165
1166         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1167         fp = fopen(buf,"w");
1168         if (fp == NULL) {
1169                 cprintf("%d Cannot create file\n",ERROR);
1170                 return;
1171                 }
1172         cprintf("%d  \n",SEND_LISTING);
1173         while(client_gets(buf), strcmp(buf,"000")) {
1174                 fprintf(fp,"%s\n",buf);
1175                 }
1176         fclose(fp);
1177         }
1178
1179 /*
1180  * read user bio
1181  */
1182 void cmd_rbio(char *cmdbuf)
1183 {
1184         struct usersupp ruser;
1185         char buf[256];
1186         FILE *fp;
1187
1188         extract(buf,cmdbuf,0);
1189         if (getuser(&ruser,buf)!=0) {
1190                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1191                 return;
1192                 }
1193         sprintf(buf,"./bio/%ld",ruser.usernum);
1194
1195         fp = fopen(buf,"r");
1196         if (fp == NULL) {
1197                 cprintf("%d %s has no bio on file.\n",
1198                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1199                 return;
1200                 }
1201         cprintf("%d  \n",LISTING_FOLLOWS);
1202         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1203         fclose(fp);
1204         cprintf("000\n");
1205         }
1206
1207 /*
1208  * list of users who have entered bios
1209  */
1210 void cmd_lbio(void) {
1211         char buf[256];
1212         FILE *ls;
1213         struct usersupp usbuf;
1214
1215         ls=popen("cd ./bio; ls","r");
1216         if (ls==NULL) {
1217                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1218                 return;
1219                 }
1220
1221         cprintf("%d\n",LISTING_FOLLOWS);
1222         while (fgets(buf,255,ls)!=NULL)
1223                 if (getuserbynumber(&usbuf,atol(buf))==0)
1224                         cprintf("%s\n",usbuf.fullname);
1225         pclose(ls);
1226         cprintf("000\n");
1227         }
1228
1229
1230 /*
1231  * Administrative Get User Parameters
1232  */
1233 void cmd_agup(char *cmdbuf) {
1234         struct usersupp usbuf;
1235         char requested_user[256];
1236
1237         if ( (CC->internal_pgm==0)
1238            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1239                 cprintf("%d Higher access required.\n",
1240                         ERROR + HIGHER_ACCESS_REQUIRED);
1241                 return;
1242                 }
1243
1244         extract(requested_user, cmdbuf, 0);
1245         if (getuser(&usbuf, requested_user) != 0) {
1246                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1247                 return;
1248                 }
1249
1250         cprintf("%d %s|%s|%u|%d|%d|%d|%ld|%ld|%d\n",
1251                 OK,
1252                 usbuf.fullname,
1253                 usbuf.password,
1254                 usbuf.flags,
1255                 usbuf.timescalled,
1256                 usbuf.posted,
1257                 (int)usbuf.axlevel,
1258                 usbuf.usernum,
1259                 usbuf.lastcall,
1260                 usbuf.USuserpurge);
1261         }
1262
1263
1264
1265 /*
1266  * Administrative Set User Parameters
1267  */
1268 void cmd_asup(char *cmdbuf) {
1269         struct usersupp usbuf;
1270         char requested_user[256];
1271         int np;
1272         int newax;
1273
1274         if ( (CC->internal_pgm==0)
1275            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1276                 cprintf("%d Higher access required.\n",
1277                         ERROR + HIGHER_ACCESS_REQUIRED);
1278                 return;
1279                 }
1280
1281         extract(requested_user, cmdbuf, 0);
1282         if (lgetuser(&usbuf, requested_user) != 0) {
1283                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1284                 return;
1285                 }
1286
1287         np = num_parms(cmdbuf);
1288         if (np > 1) extract(usbuf.password, cmdbuf, 1);
1289         if (np > 2) usbuf.flags = extract_int(cmdbuf, 2);
1290         if (np > 3) usbuf.timescalled = extract_int(cmdbuf, 3);
1291         if (np > 4) usbuf.posted = extract_int(cmdbuf, 4);
1292         if (np > 5) {
1293                 newax = extract_int(cmdbuf, 5);
1294                 if ((newax >=0) && (newax <= 6)) {
1295                         usbuf.axlevel = extract_int(cmdbuf, 5);
1296                         }
1297                 }
1298         if (np > 7) {
1299                 usbuf.lastcall = extract_long(cmdbuf, 7);
1300                 }
1301         if (np > 8) {
1302                 usbuf.USuserpurge = extract_int(cmdbuf, 8);
1303                 }
1304
1305         lputuser(&usbuf, requested_user);
1306         if (usbuf.axlevel == 0) {
1307                 if (purge_user(requested_user)==0) {
1308                         cprintf("%d %s deleted.\n", OK, requested_user);
1309                         }
1310                 }
1311         cprintf("%d Ok\n", OK);
1312         }
1313
1314
1315 /*
1316  * Count the number of new mail messages the user has
1317  */
1318 int NewMailCount() {
1319         int num_newmsgs = 0;
1320         int a;
1321         char mailboxname[32];
1322         struct quickroom mailbox;
1323         struct visit vbuf;
1324
1325         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
1326         if (getroom(&mailbox, mailboxname)!=0) return(0);
1327         CtdlGetRelationship(&vbuf, &CC->usersupp, &mailbox);
1328
1329         get_msglist(&mailbox);
1330         for (a=0; a<CC->num_msgs; ++a) {
1331                 if (MessageFromList(a)>0L) {
1332                         if (MessageFromList(a) > vbuf.v_lastseen) {
1333                                 ++num_newmsgs;
1334                                 }
1335                         }
1336                 }
1337
1338         return(num_newmsgs);
1339         }