citadel/user_ops.c

   1 /* $Id$ */
   2
   3 #include "sysdep.h"
   4 #include <errno.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7 #include <stdio.h>
   8 #include <fcntl.h>
   9 #include <signal.h>
  10 #include <pwd.h>
  11 #include <sys/types.h>
  12 #include <sys/wait.h>
  13 #include <sys/time.h>
  14 #include <string.h>
  15 #include <syslog.h>
  16 #include <limits.h>
  17 #ifdef HAVE_PTHREAD_H
  18 #include <pthread.h>
  19 #endif
  20 #ifndef ENABLE_CHKPWD
  21 #include "auth.h"
  22 #endif
  23 #include "citadel.h"
  24 #include "server.h"
  25 #include "database.h"
  26 #include "user_ops.h"
  27 #include "sysdep_decls.h"
  28 #include "support.h"
  29 #include "room_ops.h"
  30 #include "logging.h"
  31 #include "file_ops.h"
  32 #include "control.h"
  33 #include "msgbase.h"
  34 #include "config.h"
  35 #include "dynloader.h"
  36 #include "tools.h"
  37
  38
  39 /*
  40  * getuser()  -  retrieve named user into supplied buffer.
  41  *               returns 0 on success
  42  */
  43 int getuser(struct usersupp *usbuf, char name[]) {
  44
  45         char lowercase_name[32];
  46         int a;
  47         struct cdbdata *cdbus;
  48
  49         memset(usbuf, 0, sizeof(struct usersupp));
  50         for (a=0; a<=strlen(name); ++a) {
  51                 if (a < sizeof(lowercase_name))
  52                         lowercase_name[a] = tolower(name[a]);
  53                 }
  54         lowercase_name[sizeof(lowercase_name)-1] = 0;
  55
  56         cdbus = cdb_fetch(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
  57         if (cdbus == NULL) {
  58                 return(1);      /* user not found */
  59                 }
  60
  61         memcpy(usbuf, cdbus->ptr,
  62                 ( (cdbus->len > sizeof(struct usersupp)) ?
  63                 sizeof(struct usersupp) : cdbus->len) );
  64         cdb_free(cdbus);
  65         return(0);
  66         }
  67
  68
  69 /*
  70  * lgetuser()  -  same as getuser() but locks the record
  71  */
  72 int lgetuser(struct usersupp *usbuf, char *name)
  73 {
  74         int retcode;
  75
  76         retcode = getuser(usbuf,name);
  77         if (retcode == 0) {
  78                 begin_critical_section(S_USERSUPP);
  79                 }
  80         return(retcode);
  81         }
  82
  83
  84 /*
  85  * putuser()  -  write user buffer into the correct place on disk
  86  */
  87 void putuser(struct usersupp *usbuf, char *name)
  88 {
  89         char lowercase_name[32];
  90         int a;
  91
  92         for (a=0; a<=strlen(name); ++a) {
  93                 if (a < sizeof(lowercase_name))
  94                         lowercase_name[a] = tolower(name[a]);
  95                 }
  96         lowercase_name[sizeof(lowercase_name)-1] = 0;
  97
  98         cdb_store(CDB_USERSUPP,
  99                 lowercase_name, strlen(lowercase_name),
 100                 usbuf, sizeof(struct usersupp));
 101
 102         }
 103
 104
 105 /*
 106  * lputuser()  -  same as putuser() but locks the record
 107  */
 108 void lputuser(struct usersupp *usbuf, char *name) {
 109         putuser(usbuf,name);
 110         end_critical_section(S_USERSUPP);
 111         }
 112
 113 /*
 114  * Index-generating function used by Ctdl[Get|Set]Relationship
 115  */
 116 int GenerateRelationshipIndex(  char *IndexBuf,
 117                                 long RoomID,
 118                                 long RoomGen,
 119                                 long UserID) {
 120
 121         struct {
 122                 long iRoomID;
 123                 long iRoomGen;
 124                 long iUserID;
 125                 } TheIndex;
 126
 127         TheIndex.iRoomID = RoomID;
 128         TheIndex.iRoomGen = RoomGen;
 129         TheIndex.iUserID = UserID;
 130
 131         memcpy(IndexBuf, &TheIndex, sizeof(TheIndex));
 132         return(sizeof(TheIndex));
 133         }
 134
 135 /*
 136  * Define a relationship between a user and a room
 137  */
 138 void CtdlSetRelationship(struct visit *newvisit,
 139                         struct usersupp *rel_user,
 140                         struct quickroom *rel_room) {
 141
 142         char IndexBuf[32];
 143         int IndexLen;
 144
 145         /* We don't use these in Citadel because they're implicit by the
 146          * index, but they must be present if the database is exported.
 147          */
 148         newvisit->v_roomnum = rel_room->QRnumber;
 149         newvisit->v_roomgen = rel_room->QRgen;
 150         newvisit->v_usernum = rel_user->usernum;
 151
 152         /* Generate an index */
 153         IndexLen = GenerateRelationshipIndex(IndexBuf,
 154                 rel_room->QRnumber,
 155                 rel_room->QRgen,
 156                 rel_user->usernum);
 157
 158         /* Store the record */
 159         cdb_store(CDB_VISIT, IndexBuf, IndexLen,
 160                 newvisit, sizeof(struct visit)
 161                 );
 162         }
 163
 164 /*
 165  * Locate a relationship between a user and a room
 166  */
 167 void CtdlGetRelationship(struct visit *vbuf,
 168                         struct usersupp *rel_user,
 169                         struct quickroom *rel_room) {
 170
 171         char IndexBuf[32];
 172         int IndexLen;
 173         struct cdbdata *cdbvisit;
 174
 175         /* Generate an index */
 176         IndexLen = GenerateRelationshipIndex(IndexBuf,
 177                 rel_room->QRnumber,
 178                 rel_room->QRgen,
 179                 rel_user->usernum);
 180
 181         /* Clear out the buffer */
 182         memset(vbuf, 0, sizeof(struct visit));
 183
 184         cdbvisit = cdb_fetch(CDB_VISIT, IndexBuf, IndexLen);
 185         if (cdbvisit != NULL) {
 186                 memcpy(vbuf, cdbvisit->ptr,
 187                         ( (cdbvisit->len > sizeof(struct visit)) ?
 188                         sizeof(struct visit) : cdbvisit->len) );
 189                 cdb_free(cdbvisit);
 190                 return;
 191                 }
 192         }
 193
 194
 195 void MailboxName(char *buf, struct usersupp *who, char *prefix) {
 196         sprintf(buf, "%010ld.%s", who->usernum, prefix);
 197         }
 198
 199
 200 /*
 201  * Is the user currently logged in an Aide?
 202  */
 203 int is_aide(void) {
 204         if (CC->usersupp.axlevel >= 6) return(1);
 205         else return(0);
 206         }
 207
 208
 209 /*
 210  * Is the user currently logged in an Aide *or* the room aide for this room?
 211  */
 212 int is_room_aide(void) {
 213         if ( (CC->usersupp.axlevel >= 6)
 214            || (CC->quickroom.QRroomaide == CC->usersupp.usernum) ) {
 215                 return(1);
 216                 }
 217         else {
 218                 return(0);
 219                 }
 220         }
 221
 222 /*
 223  * getuserbynumber()  -  get user by number
 224  *                       returns 0 if user was found
 225  */
 226 int getuserbynumber(struct usersupp *usbuf, long int number)
 227 {
 228         struct cdbdata *cdbus;
 229
 230         cdb_rewind(CDB_USERSUPP);
 231
 232         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 233                 memset(usbuf, 0, sizeof(struct usersupp));
 234                 memcpy(usbuf, cdbus->ptr,
 235                         ( (cdbus->len > sizeof(struct usersupp)) ?
 236                         sizeof(struct usersupp) : cdbus->len) );
 237                 cdb_free(cdbus);
 238                 if (usbuf->usernum == number) {
 239                         return(0);
 240                         }
 241                 }
 242         return(-1);
 243         }
 244
 245
 246 /*
 247  * USER cmd
 248  */
 249 void cmd_user(char *cmdbuf)
 250 {
 251         char username[256];
 252         char autoname[256];
 253         int found_user = 0;
 254         struct passwd *p;
 255         int a;
 256
 257         extract(username,cmdbuf,0);
 258         username[25] = 0;
 259         strproc(username);
 260
 261         if ((CC->logged_in)) {
 262                 cprintf("%d Already logged in.\n",ERROR);
 263                 return;
 264                 }
 265
 266         found_user = getuser(&CC->usersupp,username);
 267         if (found_user != 0) {
 268                 p = (struct passwd *)getpwnam(username);
 269                 if (p!=NULL) {
 270                         strcpy(autoname,p->pw_gecos);
 271                         for (a=0; a<strlen(autoname); ++a)
 272                                 if (autoname[a]==',') autoname[a]=0;
 273                         found_user = getuser(&CC->usersupp,autoname);
 274                         }
 275                 }
 276         if (found_user == 0) {
 277                 if (((CC->nologin)) && (CC->usersupp.axlevel < 6)) {
 278                         cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 279                         ERROR+MAX_SESSIONS_EXCEEDED,
 280                         config.c_nodename,config.c_maxsessions);
 281                         }
 282                 else {
 283                         strcpy(CC->curr_user,CC->usersupp.fullname);
 284                         cprintf("%d Password required for %s\n",
 285                                 MORE_DATA,CC->curr_user);
 286                         }
 287                 }
 288         else {
 289                 cprintf("%d %s not found.\n",ERROR,username);
 290                 }
 291         }
 292
 293
 294
 295 /*
 296  * session startup code which is common to both cmd_pass() and cmd_newu()
 297  */
 298 void session_startup(void) {
 299         syslog(LOG_NOTICE,"user <%s> logged in",CC->curr_user);
 300
 301         lgetuser(&CC->usersupp,CC->curr_user);
 302         ++(CC->usersupp.timescalled);
 303         CC->fake_username[0] = '\0';
 304         CC->fake_postname[0] = '\0';
 305         CC->fake_hostname[0] = '\0';
 306         CC->fake_roomname[0] = '\0';
 307         time(&CC->usersupp.lastcall);
 308
 309         /* If this user's name is the name of the system administrator
 310          * (as specified in setup), automatically assign access level 6.
 311          */
 312         if (!strcasecmp(CC->usersupp.fullname, config.c_sysadm)) {
 313                 CC->usersupp.axlevel = 6;
 314                 }
 315
 316         lputuser(&CC->usersupp,CC->curr_user);
 317
 318         /* Run any cleanup routines registered by loadable modules */
 319         PerformSessionHooks(EVT_LOGIN);
 320
 321         cprintf("%d %s|%d|%d|%d|%u|%ld\n",OK,CC->usersupp.fullname,CC->usersupp.axlevel,
 322                 CC->usersupp.timescalled,CC->usersupp.posted,CC->usersupp.flags,
 323                 CC->usersupp.usernum);
 324         usergoto(BASEROOM,0);           /* Enter the lobby */
 325         rec_log(CL_LOGIN,CC->curr_user);
 326         }
 327
 328
 329 /*
 330  * misc things to be taken care of when a user is logged out
 331  */
 332 void logout(struct CitContext *who)
 333 {
 334         who->logged_in = 0;
 335         if (who->download_fp != NULL) {
 336                 fclose(who->download_fp);
 337                 who->download_fp = NULL;
 338                 }
 339         if (who->upload_fp != NULL) {
 340                 abort_upl(who);
 341                 }
 342
 343         /* Do modular stuff... */
 344         PerformSessionHooks(EVT_LOGOUT);
 345         }
 346
 347 #ifdef ENABLE_CHKPWD
 348 /*
 349  * an alternate version of validpw() which executes `chkpwd' instead of
 350  * verifying the password directly
 351  */
 352 static int validpw(uid_t uid, const char *pass)
 353 {
 354         pid_t pid;
 355         int status, pipev[2];
 356         char buf[24];
 357
 358         if (pipe(pipev)) {
 359                 lprintf(1, "pipe failed (%s): denying autologin access for "
 360                            "uid %u\n", strerror(errno), uid);
 361                 return 0;
 362                 }
 363
 364         switch (pid = fork()) {
 365             case -1:
 366                 lprintf(1, "fork failed (%s): denying autologin access for "
 367                            "uid %u\n", strerror(errno), uid);
 368                 close(pipev[0]);
 369                 close(pipev[1]);
 370                 return 0;
 371
 372             case 0:
 373                 close(pipev[1]);
 374                 if (dup2(pipev[0], 0) == -1) {
 375                         perror("dup2");
 376                         exit(1);
 377                         }
 378                 close(pipev[0]);
 379
 380                 execl(BBSDIR "/chkpwd", BBSDIR "/chkpwd", NULL);
 381                 perror(BBSDIR "/chkpwd");
 382                 exit(1);
 383                 }
 384
 385         close(pipev[0]);
 386         write(pipev[1], buf, sprintf(buf, "%u\n", uid));
 387         write(pipev[1], pass, strlen(pass));
 388         write(pipev[1], "\n", 1);
 389         close(pipev[1]);
 390
 391         while (waitpid(pid, &status, 0) == -1)
 392                 if (errno != EINTR) {
 393                         lprintf(1, "waitpid failed (%s): denying autologin "
 394                                    "access for uid %u\n",
 395                                 strerror(errno), uid);
 396                         return 0;
 397                         }
 398
 399         if (WIFEXITED(status) && !WEXITSTATUS(status))
 400                 return 1;
 401
 402         return 0;
 403         }
 404 #endif
 405
 406 void cmd_pass(char *buf)
 407 {
 408         char password[256];
 409         int code;
 410
 411         extract(password,buf,0);
 412
 413         if ((CC->logged_in)) {
 414                 cprintf("%d Already logged in.\n",ERROR);
 415                 return;
 416                 }
 417         if (!strcmp(CC->curr_user,"")) {
 418                 cprintf("%d You must send a name with USER first.\n",ERROR);
 419                 return;
 420                 }
 421         if (getuser(&CC->usersupp,CC->curr_user)) {
 422                 cprintf("%d Can't find user record!\n",ERROR+INTERNAL_ERROR);
 423                 return;
 424                 }
 425
 426         code = (-1);
 427         if (CC->usersupp.USuid == BBSUID) {
 428                 strproc(password);
 429                 strproc(CC->usersupp.password);
 430                 code = strcasecmp(CC->usersupp.password,password);
 431                 }
 432 #ifdef ENABLE_AUTOLOGIN
 433         else {
 434                 if (validpw(CC->usersupp.USuid, password)) {
 435                         code = 0;
 436                         lgetuser(&CC->usersupp, CC->curr_user);
 437                         safestrncpy(CC->usersupp.password, password,
 438                                     sizeof CC->usersupp.password);
 439                         lputuser(&CC->usersupp, CC->curr_user);
 440                         }
 441                 }
 442 #endif
 443
 444         if (!code) {
 445                 (CC->logged_in) = 1;
 446                 session_startup();
 447                 }
 448         else {
 449                 cprintf("%d Wrong password.\n",ERROR);
 450                 rec_log(CL_BADPW,CC->curr_user);
 451                 }
 452         }
 453
 454
 455 /*
 456  * Delete a user record *and* all of its related resources.
 457  */
 458 int purge_user(char pname[]) {
 459         char filename[64];
 460         char mailboxname[ROOMNAMELEN];
 461         struct usersupp usbuf;
 462         struct quickroom qrbuf;
 463         char lowercase_name[32];
 464         int a;
 465         struct CitContext *ccptr;
 466         int user_is_logged_in = 0;
 467
 468         for (a=0; a<=strlen(pname); ++a) {
 469                 lowercase_name[a] = tolower(pname[a]);
 470                 }
 471
 472         if (getuser(&usbuf, pname) != 0) {
 473                 lprintf(5, "Cannot purge user <%s> - not found\n", pname);
 474                 return(ERROR+NO_SUCH_USER);
 475                 }
 476
 477         /* Don't delete a user who is currently logged in.  Instead, just
 478          * set the access level to 0, and let the account get swept up
 479          * during the next purge.
 480          */
 481         user_is_logged_in = 0;
 482         begin_critical_section(S_SESSION_TABLE);
 483         for (ccptr=ContextList; ccptr!=NULL; ccptr=ccptr->next) {
 484                 if (ccptr->usersupp.usernum == usbuf.usernum) {
 485                         user_is_logged_in = 1;
 486                         }
 487                 }
 488         end_critical_section(S_SESSION_TABLE);
 489         if (user_is_logged_in == 1) {
 490                 lprintf(5, "User <%s> is logged in; not deleting.\n", pname);
 491                 usbuf.axlevel = 0;
 492                 putuser(&usbuf, pname);
 493                 return(1);
 494                 }
 495
 496         lprintf(5, "Deleting user <%s>\n", pname);
 497
 498         /* Perform any purge functions registered by server extensions */
 499         PerformUserHooks(usbuf.fullname, usbuf.usernum, EVT_PURGEUSER);
 500
 501         /* delete any existing user/room relationships */
 502         cdb_delete(CDB_VISIT, &usbuf.usernum, sizeof(long));
 503
 504         /* Delete the user's mailbox and its contents
 505          * (This is commented out because we don't do it here anymore.  Since
 506          * the user may have any number of mailboxes, we now purge them the
 507          * next time an "EXPI rooms" command is executed.)
 508          *
 509          * MailboxName(mailboxname, &usbuf, MAILROOM);
 510          * if (getroom(&qrbuf, mailboxname)==0) {
 511          *      delete_room(&qrbuf);
 512          *      }
 513          */
 514
 515         /* delete the userlog entry */
 516         cdb_delete(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
 517
 518         /* remove the user's bio file */
 519         sprintf(filename, "./bio/%ld", usbuf.usernum);
 520         unlink(filename);
 521
 522         /* remove the user's picture */
 523         sprintf(filename, "./userpics/%ld.gif", usbuf.usernum);
 524         unlink(filename);
 525
 526         return(0);
 527         }
 528
 529
 530 /*
 531  * create_user()  -  back end processing to create a new user
 532  */
 533 int create_user(char *newusername)
 534 {
 535         struct usersupp usbuf;
 536         int a;
 537         struct passwd *p = NULL;
 538         char username[64];
 539         char mailboxname[ROOMNAMELEN];
 540
 541         strcpy(username, newusername);
 542         strproc(username);
 543
 544 #ifdef ENABLE_AUTOLOGIN
 545         p = (struct passwd *)getpwnam(username);
 546 #endif
 547         if (p != NULL) {
 548                 strcpy(username, p->pw_gecos);
 549                 for (a=0; a<strlen(username); ++a) {
 550                         if (username[a] == ',') username[a] = 0;
 551                         }
 552                 CC->usersupp.USuid = p->pw_uid;
 553                 }
 554         else {
 555                 CC->usersupp.USuid = BBSUID;
 556                 }
 557
 558         if (!getuser(&usbuf,username)) {
 559                 return(ERROR+ALREADY_EXISTS);
 560                 }
 561
 562         strcpy(CC->curr_user,username);
 563         strcpy(CC->usersupp.fullname,username);
 564         strcpy(CC->usersupp.password,"");
 565         (CC->logged_in) = 1;
 566
 567         /* These are the default flags on new accounts */
 568         CC->usersupp.flags =
 569                 US_NEEDVALID|US_LASTOLD|US_DISAPPEAR|US_PAGINATOR|US_FLOORS;
 570
 571         CC->usersupp.timescalled = 0;
 572         CC->usersupp.posted = 0;
 573         CC->usersupp.axlevel = config.c_initax;
 574         CC->usersupp.USscreenwidth = 80;
 575         CC->usersupp.USscreenheight = 24;
 576         time(&CC->usersupp.lastcall);
 577         strcpy(CC->usersupp.USname, "");
 578         strcpy(CC->usersupp.USaddr, "");
 579         strcpy(CC->usersupp.UScity, "");
 580         strcpy(CC->usersupp.USstate, "");
 581         strcpy(CC->usersupp.USzip, "");
 582         strcpy(CC->usersupp.USphone, "");
 583
 584         /* fetch a new user number */
 585         CC->usersupp.usernum = get_new_user_number();
 586
 587         if (CC->usersupp.usernum == 1L) {
 588                 CC->usersupp.axlevel = 6;
 589                 }
 590
 591         /* add user to userlog */
 592         putuser(&CC->usersupp,CC->curr_user);
 593         if (getuser(&CC->usersupp,CC->curr_user)) {
 594                 return(ERROR+INTERNAL_ERROR);
 595                 }
 596
 597         /* give the user a private mailbox */
 598         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
 599         create_room(mailboxname, 4, "", 0);
 600
 601         rec_log(CL_NEWUSER,CC->curr_user);
 602         return(0);
 603         }
 604
 605
 606
 607
 608 /*
 609  * cmd_newu()  -  create a new user account
 610  */
 611 void cmd_newu(char *cmdbuf)
 612 {
 613         int a;
 614         char username[256];
 615
 616         if ((CC->logged_in)) {
 617                 cprintf("%d Already logged in.\n",ERROR);
 618                 return;
 619                 }
 620
 621         if ((CC->nologin)) {
 622                 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 623                 ERROR+MAX_SESSIONS_EXCEEDED,
 624                 config.c_nodename,config.c_maxsessions);
 625                 }
 626
 627         extract(username,cmdbuf,0);
 628         username[25] = 0;
 629         strproc(username);
 630
 631         if (strlen(username)==0) {
 632                 cprintf("%d You must supply a user name.\n",ERROR);
 633                 return;
 634                 }
 635
 636         a = create_user(username);
 637         if ((!strcasecmp(username, "bbs")) ||
 638             (!strcasecmp(username, "new")) ||
 639             (!strcasecmp(username, ".")))
 640         {
 641            cprintf("%d '%s' is an invalid login name.\n", ERROR);
 642            return;
 643         }
 644         if (a==ERROR+ALREADY_EXISTS) {
 645                 cprintf("%d '%s' already exists.\n",
 646                         ERROR+ALREADY_EXISTS,username);
 647                 return;
 648                 }
 649         else if (a==ERROR+INTERNAL_ERROR) {
 650                 cprintf("%d Internal error - user record disappeared?\n",
 651                         ERROR+INTERNAL_ERROR);
 652                 return;
 653                 }
 654         else if (a==0) {
 655                 session_startup();
 656                 }
 657         else {
 658                 cprintf("%d unknown error\n",ERROR);
 659                 }
 660         rec_log(CL_NEWUSER,CC->curr_user);
 661         }
 662
 663
 664
 665 /*
 666  * set password
 667  */
 668 void cmd_setp(char *new_pw)
 669 {
 670         if (!(CC->logged_in)) {
 671                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 672                 return;
 673                 }
 674         if (CC->usersupp.USuid != BBSUID) {
 675                 cprintf("%d Not allowed.  Use the 'passwd' command.\n",ERROR);
 676                 return;
 677                 }
 678         strproc(new_pw);
 679         if (strlen(new_pw)==0) {
 680                 cprintf("%d Password unchanged.\n",OK);
 681                 return;
 682                 }
 683         lgetuser(&CC->usersupp,CC->curr_user);
 684         strcpy(CC->usersupp.password,new_pw);
 685         lputuser(&CC->usersupp,CC->curr_user);
 686         cprintf("%d Password changed.\n",OK);
 687         rec_log(CL_PWCHANGE,CC->curr_user);
 688         PerformSessionHooks(EVT_SETPASS);
 689         }
 690
 691 /*
 692  * get user parameters
 693  */
 694 void cmd_getu(void) {
 695         if (!(CC->logged_in)) {
 696                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 697                 return;
 698                 }
 699         getuser(&CC->usersupp,CC->curr_user);
 700         cprintf("%d %d|%d|%d\n",
 701                 OK,
 702                 CC->usersupp.USscreenwidth,
 703                 CC->usersupp.USscreenheight,
 704                 (CC->usersupp.flags & US_USER_SET)
 705                 );
 706         }
 707
 708 /*
 709  * set user parameters
 710  */
 711 void cmd_setu(char *new_parms)
 712 {
 713
 714         if (num_parms(new_parms)!=3) {
 715                 cprintf("%d Usage error.\n",ERROR);
 716                 return;
 717                 }
 718         if (!(CC->logged_in)) {
 719                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 720                 return;
 721                 }
 722         lgetuser(&CC->usersupp,CC->curr_user);
 723         CC->usersupp.USscreenwidth = extract_int(new_parms,0);
 724         CC->usersupp.USscreenheight = extract_int(new_parms,1);
 725         CC->usersupp.flags = CC->usersupp.flags & (~US_USER_SET);
 726         CC->usersupp.flags = CC->usersupp.flags |
 727                 (extract_int(new_parms,2) & US_USER_SET);
 728         lputuser(&CC->usersupp,CC->curr_user);
 729         cprintf("%d Ok\n",OK);
 730         }
 731
 732 /*
 733  * set last read pointer
 734  */
 735 void cmd_slrp(char *new_ptr)
 736 {
 737         long newlr;
 738         struct visit vbuf;
 739
 740         if (!(CC->logged_in)) {
 741                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 742                 return;
 743                 }
 744
 745         if (!strncasecmp(new_ptr,"highest",7)) {
 746                 newlr = CC->quickroom.QRhighest;
 747                 }
 748         else {
 749                 newlr = atol(new_ptr);
 750                 }
 751
 752         lgetuser(&CC->usersupp, CC->curr_user);
 753
 754         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 755         vbuf.v_lastseen = newlr;
 756         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 757
 758         lputuser(&CC->usersupp, CC->curr_user);
 759         cprintf("%d %ld\n",OK,newlr);
 760         }
 761
 762
 763 /*
 764  * INVT and KICK commands
 765  */
 766 void cmd_invt_kick(char *iuser, int op)
 767                         /* user name */
 768         {               /* 1 = invite, 0 = kick out */
 769         struct usersupp USscratch;
 770         char bbb[256];
 771         struct visit vbuf;
 772
 773         if (!(CC->logged_in)) {
 774                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 775                 return;
 776                 }
 777
 778         if (is_room_aide()==0) {
 779                 cprintf("%d Higher access required.\n",
 780                         ERROR+HIGHER_ACCESS_REQUIRED);
 781                 return;
 782                 }
 783
 784         if (lgetuser(&USscratch,iuser)!=0) {
 785                 cprintf("%d No such user.\n",ERROR);
 786                 return;
 787                 }
 788
 789         CtdlGetRelationship(&vbuf, &USscratch, &CC->quickroom);
 790
 791         if (op==1) {
 792                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
 793                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
 794                 }
 795
 796         if (op==0) {
 797                 vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
 798                 vbuf.v_flags = vbuf.v_flags | V_FORGET | V_LOCKOUT;
 799                 }
 800
 801         CtdlSetRelationship(&vbuf, &USscratch, &CC->quickroom);
 802
 803         lputuser(&USscratch,iuser);
 804
 805         /* post a message in Aide> saying what we just did */
 806         sprintf(bbb,"%s %s %s> by %s",
 807                 iuser,
 808                 ((op == 1) ? "invited to" : "kicked out of"),
 809                 CC->quickroom.QRname,
 810                 CC->usersupp.fullname);
 811         aide_message(bbb);
 812
 813         cprintf("%d %s %s %s.\n",
 814                 OK, iuser,
 815                 ((op == 1) ? "invited to" : "kicked out of"),
 816                 CC->quickroom.QRname);
 817         return;
 818         }
 819
 820
 821 /*
 822  * forget (Zap) the current room
 823  */
 824 void cmd_forg(void) {
 825         struct visit vbuf;
 826
 827         if (!(CC->logged_in)) {
 828                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 829                 return;
 830                 }
 831
 832         if (is_aide()) {
 833                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 834                 return;
 835                 }
 836
 837         lgetuser(&CC->usersupp,CC->curr_user);
 838         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 839
 840         vbuf.v_flags = vbuf.v_flags | V_FORGET;
 841         vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
 842
 843         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 844         lputuser(&CC->usersupp,CC->curr_user);
 845         cprintf("%d Ok\n",OK);
 846         usergoto(BASEROOM, 0);
 847         }
 848
 849 /*
 850  * Get Next Unregistered User
 851  */
 852 void cmd_gnur(void) {
 853         struct cdbdata *cdbus;
 854         struct usersupp usbuf;
 855
 856         if (!(CC->logged_in)) {
 857                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 858                 return;
 859                 }
 860
 861         if (CC->usersupp.axlevel < 6) {
 862                 cprintf("%d Higher access required.\n",
 863                         ERROR+HIGHER_ACCESS_REQUIRED);
 864                 return;
 865                 }
 866
 867         if ((CitControl.MMflags&MM_VALID)==0) {
 868                 cprintf("%d There are no unvalidated users.\n",OK);
 869                 return;
 870                 }
 871
 872         /* There are unvalidated users.  Traverse the usersupp database,
 873          * and return the first user we find that needs validation.
 874          */
 875         cdb_rewind(CDB_USERSUPP);
 876         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 877                 memset(&usbuf, 0, sizeof(struct usersupp));
 878                 memcpy(&usbuf, cdbus->ptr,
 879                         ( (cdbus->len > sizeof(struct usersupp)) ?
 880                         sizeof(struct usersupp) : cdbus->len) );
 881                 cdb_free(cdbus);
 882                 if ((usbuf.flags & US_NEEDVALID)
 883                    &&(usbuf.axlevel > 0)) {
 884                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 885                         return;
 886                         }
 887                 }
 888
 889         /* If we get to this point, there are no more unvalidated users.
 890          * Therefore we clear the "users need validation" flag.
 891          */
 892
 893         begin_critical_section(S_CONTROL);
 894         get_control();
 895         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 896         put_control();
 897         end_critical_section(S_CONTROL);
 898         cprintf("%d *** End of registration.\n",OK);
 899
 900
 901         }
 902
 903
 904 /*
 905  * get registration info for a user
 906  */
 907 void cmd_greg(char *who)
 908 {
 909         struct usersupp usbuf;
 910         int a,b;
 911         char pbuf[32];
 912
 913         if (!(CC->logged_in)) {
 914                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 915                 return;
 916                 }
 917
 918         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 919
 920         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 921                 cprintf("%d Higher access required.\n",
 922                         ERROR+HIGHER_ACCESS_REQUIRED);
 923                 return;
 924                 }
 925
 926         if (getuser(&usbuf,who) != 0) {
 927                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 928                 return;
 929                 }
 930
 931         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 932         cprintf("%ld\n",usbuf.usernum);
 933         cprintf("%s\n",usbuf.password);
 934         cprintf("%s\n",usbuf.USname);
 935         cprintf("%s\n",usbuf.USaddr);
 936         cprintf("%s\n%s\n%s\n",
 937                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 938         strcpy(pbuf,usbuf.USphone);
 939         usbuf.USphone[0]=0;
 940         for (a=0; a<strlen(pbuf); ++a) {
 941                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 942                         b=strlen(usbuf.USphone);
 943                         usbuf.USphone[b]=pbuf[a];
 944                         usbuf.USphone[b+1]=0;
 945                         }
 946                 }
 947         while(strlen(usbuf.USphone)<10) {
 948                 strcpy(pbuf,usbuf.USphone);
 949                 strcpy(usbuf.USphone," ");
 950                 strcat(usbuf.USphone,pbuf);
 951                 }
 952
 953         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 954                 usbuf.USphone[0],usbuf.USphone[1],
 955                 usbuf.USphone[2],usbuf.USphone[3],
 956                 usbuf.USphone[4],usbuf.USphone[5],
 957                 usbuf.USphone[6],usbuf.USphone[7],
 958                 usbuf.USphone[8],usbuf.USphone[9]);
 959
 960         cprintf("%d\n",usbuf.axlevel);
 961         cprintf("%s\n",usbuf.USemail);
 962         cprintf("000\n");
 963         }
 964
 965 /*
 966  * validate a user
 967  */
 968 void cmd_vali(char *v_args)
 969 {
 970         char user[256];
 971         int newax;
 972         struct usersupp userbuf;
 973
 974         extract(user,v_args,0);
 975         newax = extract_int(v_args,1);
 976
 977         if (!(CC->logged_in)) {
 978                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 979                 return;
 980                 }
 981
 982         if (CC->usersupp.axlevel < 6) {
 983                 cprintf("%d Higher access required.\n",
 984                         ERROR+HIGHER_ACCESS_REQUIRED);
 985                 return;
 986                 }
 987
 988         if (lgetuser(&userbuf,user)!=0) {
 989                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 990                 return;
 991                 }
 992
 993         userbuf.axlevel = newax;
 994         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 995
 996         lputuser(&userbuf,user);
 997
 998         /* If the access level was set to zero, delete the user */
 999         if (newax == 0) {
1000                 if (purge_user(user)==0) {
1001                         cprintf("%d %s Deleted.\n", OK, userbuf.fullname);
1002                         return;
1003                         }
1004                 }
1005
1006         cprintf("%d ok\n",OK);
1007         }
1008
1009
1010
1011 /*
1012  *  Traverse the user file...
1013  */
1014 void ForEachUser(void (*CallBack)(struct usersupp *EachUser)) {
1015         struct usersupp usbuf;
1016         struct cdbdata *cdbus;
1017
1018         cdb_rewind(CDB_USERSUPP);
1019
1020         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
1021                 memset(&usbuf, 0, sizeof(struct usersupp));
1022                 memcpy(&usbuf, cdbus->ptr,
1023                         ( (cdbus->len > sizeof(struct usersupp)) ?
1024                         sizeof(struct usersupp) : cdbus->len) );
1025                 cdb_free(cdbus);
1026                 (*CallBack)(&usbuf);
1027                 }
1028         }
1029
1030
1031 /*
1032  * List one user (this works with cmd_list)
1033  */
1034 void ListThisUser(struct usersupp *usbuf) {
1035         if (usbuf->axlevel > 0) {
1036                 if ((CC->usersupp.axlevel>=6)
1037                    ||((usbuf->flags&US_UNLISTED)==0)
1038                    ||((CC->internal_pgm))) {
1039                         cprintf("%s|%d|%ld|%ld|%d|%d|",
1040                                 usbuf->fullname,
1041                                 usbuf->axlevel,
1042                                 usbuf->usernum,
1043                                 usbuf->lastcall,
1044                                 usbuf->timescalled,
1045                                 usbuf->posted);
1046                         if (CC->usersupp.axlevel >= 6)
1047                                 cprintf("%s",usbuf->password);
1048                         cprintf("\n");
1049                         }
1050                 }
1051         }
1052
1053 /*
1054  *  List users
1055  */
1056 void cmd_list(void) {
1057         cprintf("%d \n",LISTING_FOLLOWS);
1058         ForEachUser(ListThisUser);
1059         cprintf("000\n");
1060         }
1061
1062
1063 /*
1064  * enter registration info
1065  */
1066 void cmd_regi(void) {
1067         int a,b,c;
1068         char buf[256];
1069
1070         char tmpname[256];
1071         char tmpaddr[256];
1072         char tmpcity[256];
1073         char tmpstate[256];
1074         char tmpzip[256];
1075         char tmpphone[256];
1076         char tmpemail[256];
1077
1078         if (!(CC->logged_in)) {
1079                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1080                 return;
1081                 }
1082
1083         strcpy(tmpname,"");
1084         strcpy(tmpaddr,"");
1085         strcpy(tmpcity,"");
1086         strcpy(tmpstate,"");
1087         strcpy(tmpzip,"");
1088         strcpy(tmpphone,"");
1089         strcpy(tmpemail,"");
1090
1091         cprintf("%d Send registration...\n",SEND_LISTING);
1092         a=0;
1093         while (client_gets(buf), strcmp(buf,"000")) {
1094                 if (a==0) strcpy(tmpname,buf);
1095                 if (a==1) strcpy(tmpaddr,buf);
1096                 if (a==2) strcpy(tmpcity,buf);
1097                 if (a==3) strcpy(tmpstate,buf);
1098                 if (a==4) {
1099                         for (c=0; c<strlen(buf); ++c) {
1100                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
1101                                         b=strlen(tmpzip);
1102                                         tmpzip[b]=buf[c];
1103                                         tmpzip[b+1]=0;
1104                                         }
1105                                 }
1106                         }
1107                 if (a==5) {
1108                         for (c=0; c<strlen(buf); ++c) {
1109                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
1110                                         b=strlen(tmpphone);
1111                                         tmpphone[b]=buf[c];
1112                                         tmpphone[b+1]=0;
1113                                         }
1114                                 }
1115                         }
1116                 if (a==6) strncpy(tmpemail,buf,31);
1117                 ++a;
1118                 }
1119
1120         tmpname[29]=0;
1121         tmpaddr[24]=0;
1122         tmpcity[14]=0;
1123         tmpstate[2]=0;
1124         tmpzip[9]=0;
1125         tmpphone[10]=0;
1126         tmpemail[31]=0;
1127
1128         lgetuser(&CC->usersupp,CC->curr_user);
1129         strcpy(CC->usersupp.USname,tmpname);
1130         strcpy(CC->usersupp.USaddr,tmpaddr);
1131         strcpy(CC->usersupp.UScity,tmpcity);
1132         strcpy(CC->usersupp.USstate,tmpstate);
1133         strcpy(CC->usersupp.USzip,tmpzip);
1134         strcpy(CC->usersupp.USphone,tmpphone);
1135         strcpy(CC->usersupp.USemail,tmpemail);
1136         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
1137         lputuser(&CC->usersupp,CC->curr_user);
1138
1139         /* set global flag calling for validation */
1140         begin_critical_section(S_CONTROL);
1141         get_control();
1142         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
1143         put_control();
1144         end_critical_section(S_CONTROL);
1145         }
1146
1147
1148 /*
1149  * assorted info we need to check at login
1150  */
1151 void cmd_chek(void) {
1152         int mail = 0;
1153         int regis = 0;
1154         int vali = 0;
1155
1156         if (!(CC->logged_in)) {
1157                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1158                 return;
1159                 }
1160
1161         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
1162         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
1163
1164         if (CC->usersupp.axlevel >= 6) {
1165                 get_control();
1166                 if (CitControl.MMflags&MM_VALID) vali = 1;
1167                 }
1168
1169
1170         /* check for mail */
1171         mail = NewMailCount();
1172
1173         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
1174         }
1175
1176
1177 /*
1178  * check to see if a user exists
1179  */
1180 void cmd_qusr(char *who)
1181 {
1182         struct usersupp usbuf;
1183
1184         if (getuser(&usbuf,who) == 0) {
1185                 cprintf("%d %s\n",OK,usbuf.fullname);
1186                 }
1187         else {
1188                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1189                 }
1190         }
1191
1192
1193 /*
1194  * enter user bio
1195  */
1196 void cmd_ebio(void) {
1197         char buf[256];
1198         FILE *fp;
1199
1200         if (!(CC->logged_in)) {
1201                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1202                 return;
1203                 }
1204
1205         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1206         fp = fopen(buf,"w");
1207         if (fp == NULL) {
1208                 cprintf("%d Cannot create file\n",ERROR);
1209                 return;
1210                 }
1211         cprintf("%d  \n",SEND_LISTING);
1212         while(client_gets(buf), strcmp(buf,"000")) {
1213                 fprintf(fp,"%s\n",buf);
1214                 }
1215         fclose(fp);
1216         }
1217
1218 /*
1219  * read user bio
1220  */
1221 void cmd_rbio(char *cmdbuf)
1222 {
1223         struct usersupp ruser;
1224         char buf[256];
1225         FILE *fp;
1226
1227         extract(buf,cmdbuf,0);
1228         if (getuser(&ruser,buf)!=0) {
1229                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1230                 return;
1231                 }
1232         sprintf(buf,"./bio/%ld",ruser.usernum);
1233
1234         fp = fopen(buf,"r");
1235         if (fp == NULL) {
1236                 cprintf("%d %s has no bio on file.\n",
1237                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1238                 return;
1239                 }
1240         cprintf("%d  \n",LISTING_FOLLOWS);
1241         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1242         fclose(fp);
1243         cprintf("000\n");
1244         }
1245
1246 /*
1247  * list of users who have entered bios
1248  */
1249 void cmd_lbio(void) {
1250         char buf[256];
1251         FILE *ls;
1252         struct usersupp usbuf;
1253
1254         ls=popen("cd ./bio; ls","r");
1255         if (ls==NULL) {
1256                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1257                 return;
1258                 }
1259
1260         cprintf("%d\n",LISTING_FOLLOWS);
1261         while (fgets(buf,255,ls)!=NULL)
1262                 if (getuserbynumber(&usbuf,atol(buf))==0)
1263                         cprintf("%s\n",usbuf.fullname);
1264         pclose(ls);
1265         cprintf("000\n");
1266         }
1267
1268
1269 /*
1270  * Administrative Get User Parameters
1271  */
1272 void cmd_agup(char *cmdbuf) {
1273         struct usersupp usbuf;
1274         char requested_user[256];
1275
1276         if ( (CC->internal_pgm==0)
1277            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1278                 cprintf("%d Higher access required.\n",
1279                         ERROR + HIGHER_ACCESS_REQUIRED);
1280                 return;
1281                 }
1282
1283         extract(requested_user, cmdbuf, 0);
1284         if (getuser(&usbuf, requested_user) != 0) {
1285                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1286                 return;
1287                 }
1288
1289         cprintf("%d %s|%s|%u|%d|%d|%d|%ld|%ld|%d\n",
1290                 OK,
1291                 usbuf.fullname,
1292                 usbuf.password,
1293                 usbuf.flags,
1294                 usbuf.timescalled,
1295                 usbuf.posted,
1296                 (int)usbuf.axlevel,
1297                 usbuf.usernum,
1298                 usbuf.lastcall,
1299                 usbuf.USuserpurge);
1300         }
1301
1302
1303
1304 /*
1305  * Administrative Set User Parameters
1306  */
1307 void cmd_asup(char *cmdbuf) {
1308         struct usersupp usbuf;
1309         char requested_user[256];
1310         int np;
1311         int newax;
1312
1313         if ( (CC->internal_pgm==0)
1314            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1315                 cprintf("%d Higher access required.\n",
1316                         ERROR + HIGHER_ACCESS_REQUIRED);
1317                 return;
1318                 }
1319
1320         extract(requested_user, cmdbuf, 0);
1321         if (lgetuser(&usbuf, requested_user) != 0) {
1322                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1323                 return;
1324                 }
1325
1326         np = num_parms(cmdbuf);
1327         if (np > 1) extract(usbuf.password, cmdbuf, 1);
1328         if (np > 2) usbuf.flags = extract_int(cmdbuf, 2);
1329         if (np > 3) usbuf.timescalled = extract_int(cmdbuf, 3);
1330         if (np > 4) usbuf.posted = extract_int(cmdbuf, 4);
1331         if (np > 5) {
1332                 newax = extract_int(cmdbuf, 5);
1333                 if ((newax >=0) && (newax <= 6)) {
1334                         usbuf.axlevel = extract_int(cmdbuf, 5);
1335                         }
1336                 }
1337         if (np > 7) {
1338                 usbuf.lastcall = extract_long(cmdbuf, 7);
1339                 }
1340         if (np > 8) {
1341                 usbuf.USuserpurge = extract_int(cmdbuf, 8);
1342                 }
1343
1344         lputuser(&usbuf, requested_user);
1345         if (usbuf.axlevel == 0) {
1346                 if (purge_user(requested_user)==0) {
1347                         cprintf("%d %s deleted.\n", OK, requested_user);
1348                         }
1349                 }
1350         cprintf("%d Ok\n", OK);
1351         }
1352
1353
1354 /*
1355  * Count the number of new mail messages the user has
1356  */
1357 int NewMailCount() {
1358         int num_newmsgs = 0;
1359         int a;
1360         char mailboxname[32];
1361         struct quickroom mailbox;
1362         struct visit vbuf;
1363
1364         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
1365         if (getroom(&mailbox, mailboxname)!=0) return(0);
1366         CtdlGetRelationship(&vbuf, &CC->usersupp, &mailbox);
1367
1368         get_msglist(&mailbox);
1369         for (a=0; a<CC->num_msgs; ++a) {
1370                 if (MessageFromList(a)>0L) {
1371                         if (MessageFromList(a) > vbuf.v_lastseen) {
1372                                 ++num_newmsgs;
1373                                 }
1374                         }
1375                 }
1376
1377         return(num_newmsgs);
1378         }