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)
  88 {
  89         char lowercase_name[32];
  90         int a;
  91
  92         for (a=0; a<=strlen(usbuf->fullname); ++a) {
  93                 if (a < sizeof(lowercase_name))
  94                         lowercase_name[a] = tolower(usbuf->fullname[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) {
 109         putuser(usbuf);
 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);
 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);
 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         struct usersupp usbuf;
 461         char lowercase_name[32];
 462         int a;
 463         struct CitContext *ccptr;
 464         int user_is_logged_in = 0;
 465
 466         for (a=0; a<=strlen(pname); ++a) {
 467                 lowercase_name[a] = tolower(pname[a]);
 468                 }
 469
 470         if (getuser(&usbuf, pname) != 0) {
 471                 lprintf(5, "Cannot purge user <%s> - not found\n", pname);
 472                 return(ERROR+NO_SUCH_USER);
 473                 }
 474
 475         /* Don't delete a user who is currently logged in.  Instead, just
 476          * set the access level to 0, and let the account get swept up
 477          * during the next purge.
 478          */
 479         user_is_logged_in = 0;
 480         begin_critical_section(S_SESSION_TABLE);
 481         for (ccptr=ContextList; ccptr!=NULL; ccptr=ccptr->next) {
 482                 if (ccptr->usersupp.usernum == usbuf.usernum) {
 483                         user_is_logged_in = 1;
 484                         }
 485                 }
 486         end_critical_section(S_SESSION_TABLE);
 487         if (user_is_logged_in == 1) {
 488                 lprintf(5, "User <%s> is logged in; not deleting.\n", pname);
 489                 usbuf.axlevel = 0;
 490                 putuser(&usbuf);
 491                 return(1);
 492                 }
 493
 494         lprintf(5, "Deleting user <%s>\n", pname);
 495
 496         /* Perform any purge functions registered by server extensions */
 497         PerformUserHooks(usbuf.fullname, usbuf.usernum, EVT_PURGEUSER);
 498
 499         /* delete any existing user/room relationships */
 500         cdb_delete(CDB_VISIT, &usbuf.usernum, sizeof(long));
 501
 502         /* delete the userlog entry */
 503         cdb_delete(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
 504
 505         /* remove the user's bio file */
 506         sprintf(filename, "./bio/%ld", usbuf.usernum);
 507         unlink(filename);
 508
 509         /* remove the user's picture */
 510         sprintf(filename, "./userpics/%ld.gif", usbuf.usernum);
 511         unlink(filename);
 512
 513         return(0);
 514         }
 515
 516
 517 /*
 518  * create_user()  -  back end processing to create a new user
 519  */
 520 int create_user(char *newusername)
 521 {
 522         struct usersupp usbuf;
 523         int a;
 524         struct passwd *p = NULL;
 525         char username[64];
 526         char mailboxname[ROOMNAMELEN];
 527
 528         strcpy(username, newusername);
 529         strproc(username);
 530
 531 #ifdef ENABLE_AUTOLOGIN
 532         p = (struct passwd *)getpwnam(username);
 533 #endif
 534         if (p != NULL) {
 535                 strcpy(username, p->pw_gecos);
 536                 for (a=0; a<strlen(username); ++a) {
 537                         if (username[a] == ',') username[a] = 0;
 538                         }
 539                 CC->usersupp.USuid = p->pw_uid;
 540                 }
 541         else {
 542                 CC->usersupp.USuid = BBSUID;
 543                 }
 544
 545         if (!getuser(&usbuf,username)) {
 546                 return(ERROR+ALREADY_EXISTS);
 547                 }
 548
 549         strcpy(CC->curr_user,username);
 550         strcpy(CC->usersupp.fullname,username);
 551         strcpy(CC->usersupp.password,"");
 552         (CC->logged_in) = 1;
 553
 554         /* These are the default flags on new accounts */
 555         CC->usersupp.flags =
 556                 US_NEEDVALID|US_LASTOLD|US_DISAPPEAR|US_PAGINATOR|US_FLOORS;
 557
 558         CC->usersupp.timescalled = 0;
 559         CC->usersupp.posted = 0;
 560         CC->usersupp.axlevel = config.c_initax;
 561         CC->usersupp.USscreenwidth = 80;
 562         CC->usersupp.USscreenheight = 24;
 563         time(&CC->usersupp.lastcall);
 564         strcpy(CC->usersupp.USname, "");
 565         strcpy(CC->usersupp.USaddr, "");
 566         strcpy(CC->usersupp.UScity, "");
 567         strcpy(CC->usersupp.USstate, "");
 568         strcpy(CC->usersupp.USzip, "");
 569         strcpy(CC->usersupp.USphone, "");
 570
 571         /* fetch a new user number */
 572         CC->usersupp.usernum = get_new_user_number();
 573
 574         if (CC->usersupp.usernum == 1L) {
 575                 CC->usersupp.axlevel = 6;
 576                 }
 577
 578         /* add user to userlog */
 579         putuser(&CC->usersupp);
 580         if (getuser(&CC->usersupp,CC->curr_user)) {
 581                 return(ERROR+INTERNAL_ERROR);
 582                 }
 583
 584         /* give the user a private mailbox */
 585         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
 586         create_room(mailboxname, 4, "", 0);
 587
 588         rec_log(CL_NEWUSER,CC->curr_user);
 589         return(0);
 590         }
 591
 592
 593
 594
 595 /*
 596  * cmd_newu()  -  create a new user account
 597  */
 598 void cmd_newu(char *cmdbuf)
 599 {
 600         int a;
 601         char username[256];
 602
 603         if ((CC->logged_in)) {
 604                 cprintf("%d Already logged in.\n",ERROR);
 605                 return;
 606                 }
 607
 608         if ((CC->nologin)) {
 609                 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 610                 ERROR+MAX_SESSIONS_EXCEEDED,
 611                 config.c_nodename,config.c_maxsessions);
 612                 }
 613
 614         extract(username,cmdbuf,0);
 615         username[25] = 0;
 616         strproc(username);
 617
 618         if (strlen(username)==0) {
 619                 cprintf("%d You must supply a user name.\n",ERROR);
 620                 return;
 621                 }
 622
 623         a = create_user(username);
 624         if ((!strcasecmp(username, "bbs")) ||
 625             (!strcasecmp(username, "new")) ||
 626             (!strcasecmp(username, ".")))
 627         {
 628            cprintf("%d '%s' is an invalid login name.\n", ERROR);
 629            return;
 630         }
 631         if (a==ERROR+ALREADY_EXISTS) {
 632                 cprintf("%d '%s' already exists.\n",
 633                         ERROR+ALREADY_EXISTS,username);
 634                 return;
 635                 }
 636         else if (a==ERROR+INTERNAL_ERROR) {
 637                 cprintf("%d Internal error - user record disappeared?\n",
 638                         ERROR+INTERNAL_ERROR);
 639                 return;
 640                 }
 641         else if (a==0) {
 642                 session_startup();
 643                 }
 644         else {
 645                 cprintf("%d unknown error\n",ERROR);
 646                 }
 647         rec_log(CL_NEWUSER,CC->curr_user);
 648         }
 649
 650
 651
 652 /*
 653  * set password
 654  */
 655 void cmd_setp(char *new_pw)
 656 {
 657         if (!(CC->logged_in)) {
 658                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 659                 return;
 660                 }
 661         if (CC->usersupp.USuid != BBSUID) {
 662                 cprintf("%d Not allowed.  Use the 'passwd' command.\n",ERROR);
 663                 return;
 664                 }
 665         strproc(new_pw);
 666         if (strlen(new_pw)==0) {
 667                 cprintf("%d Password unchanged.\n",OK);
 668                 return;
 669                 }
 670         lgetuser(&CC->usersupp,CC->curr_user);
 671         strcpy(CC->usersupp.password,new_pw);
 672         lputuser(&CC->usersupp);
 673         cprintf("%d Password changed.\n",OK);
 674         rec_log(CL_PWCHANGE,CC->curr_user);
 675         PerformSessionHooks(EVT_SETPASS);
 676         }
 677
 678 /*
 679  * get user parameters
 680  */
 681 void cmd_getu(void) {
 682         if (!(CC->logged_in)) {
 683                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 684                 return;
 685                 }
 686         getuser(&CC->usersupp,CC->curr_user);
 687         cprintf("%d %d|%d|%d\n",
 688                 OK,
 689                 CC->usersupp.USscreenwidth,
 690                 CC->usersupp.USscreenheight,
 691                 (CC->usersupp.flags & US_USER_SET)
 692                 );
 693         }
 694
 695 /*
 696  * set user parameters
 697  */
 698 void cmd_setu(char *new_parms)
 699 {
 700
 701         if (num_parms(new_parms)!=3) {
 702                 cprintf("%d Usage error.\n",ERROR);
 703                 return;
 704                 }
 705         if (!(CC->logged_in)) {
 706                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 707                 return;
 708                 }
 709         lgetuser(&CC->usersupp,CC->curr_user);
 710         CC->usersupp.USscreenwidth = extract_int(new_parms,0);
 711         CC->usersupp.USscreenheight = extract_int(new_parms,1);
 712         CC->usersupp.flags = CC->usersupp.flags & (~US_USER_SET);
 713         CC->usersupp.flags = CC->usersupp.flags |
 714                 (extract_int(new_parms,2) & US_USER_SET);
 715         lputuser(&CC->usersupp);
 716         cprintf("%d Ok\n",OK);
 717         }
 718
 719 /*
 720  * set last read pointer
 721  */
 722 void cmd_slrp(char *new_ptr)
 723 {
 724         long newlr;
 725         struct visit vbuf;
 726
 727         if (!(CC->logged_in)) {
 728                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 729                 return;
 730                 }
 731
 732         if (!strncasecmp(new_ptr,"highest",7)) {
 733                 newlr = CC->quickroom.QRhighest;
 734                 }
 735         else {
 736                 newlr = atol(new_ptr);
 737                 }
 738
 739         lgetuser(&CC->usersupp, CC->curr_user);
 740
 741         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 742         vbuf.v_lastseen = newlr;
 743         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 744
 745         lputuser(&CC->usersupp);
 746         cprintf("%d %ld\n",OK,newlr);
 747         }
 748
 749
 750 /*
 751  * INVT and KICK commands
 752  */
 753 void cmd_invt_kick(char *iuser, int op)
 754                         /* user name */
 755         {               /* 1 = invite, 0 = kick out */
 756         struct usersupp USscratch;
 757         char bbb[256];
 758         struct visit vbuf;
 759
 760         if (!(CC->logged_in)) {
 761                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 762                 return;
 763                 }
 764
 765         if (is_room_aide()==0) {
 766                 cprintf("%d Higher access required.\n",
 767                         ERROR+HIGHER_ACCESS_REQUIRED);
 768                 return;
 769                 }
 770
 771         if (lgetuser(&USscratch,iuser)!=0) {
 772                 cprintf("%d No such user.\n",ERROR);
 773                 return;
 774                 }
 775
 776         CtdlGetRelationship(&vbuf, &USscratch, &CC->quickroom);
 777
 778         if (op==1) {
 779                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
 780                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
 781                 }
 782
 783         if (op==0) {
 784                 vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
 785                 vbuf.v_flags = vbuf.v_flags | V_FORGET | V_LOCKOUT;
 786                 }
 787
 788         CtdlSetRelationship(&vbuf, &USscratch, &CC->quickroom);
 789
 790         lputuser(&USscratch);
 791
 792         /* post a message in Aide> saying what we just did */
 793         sprintf(bbb,"%s %s %s> by %s\n",
 794                 iuser,
 795                 ((op == 1) ? "invited to" : "kicked out of"),
 796                 CC->quickroom.QRname,
 797                 CC->usersupp.fullname);
 798         aide_message(bbb);
 799
 800         cprintf("%d %s %s %s.\n",
 801                 OK, iuser,
 802                 ((op == 1) ? "invited to" : "kicked out of"),
 803                 CC->quickroom.QRname);
 804         return;
 805         }
 806
 807
 808 /*
 809  * forget (Zap) the current room
 810  */
 811 void cmd_forg(void) {
 812         struct visit vbuf;
 813
 814         if (!(CC->logged_in)) {
 815                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 816                 return;
 817                 }
 818
 819         if (is_aide()) {
 820                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 821                 return;
 822                 }
 823
 824         lgetuser(&CC->usersupp,CC->curr_user);
 825         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 826
 827         vbuf.v_flags = vbuf.v_flags | V_FORGET;
 828         vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
 829
 830         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 831         lputuser(&CC->usersupp);
 832         cprintf("%d Ok\n",OK);
 833         usergoto(BASEROOM, 0);
 834         }
 835
 836 /*
 837  * Get Next Unregistered User
 838  */
 839 void cmd_gnur(void) {
 840         struct cdbdata *cdbus;
 841         struct usersupp usbuf;
 842
 843         if (!(CC->logged_in)) {
 844                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 845                 return;
 846                 }
 847
 848         if (CC->usersupp.axlevel < 6) {
 849                 cprintf("%d Higher access required.\n",
 850                         ERROR+HIGHER_ACCESS_REQUIRED);
 851                 return;
 852                 }
 853
 854         if ((CitControl.MMflags&MM_VALID)==0) {
 855                 cprintf("%d There are no unvalidated users.\n",OK);
 856                 return;
 857                 }
 858
 859         /* There are unvalidated users.  Traverse the usersupp database,
 860          * and return the first user we find that needs validation.
 861          */
 862         cdb_rewind(CDB_USERSUPP);
 863         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 864                 memset(&usbuf, 0, sizeof(struct usersupp));
 865                 memcpy(&usbuf, cdbus->ptr,
 866                         ( (cdbus->len > sizeof(struct usersupp)) ?
 867                         sizeof(struct usersupp) : cdbus->len) );
 868                 cdb_free(cdbus);
 869                 if ((usbuf.flags & US_NEEDVALID)
 870                    &&(usbuf.axlevel > 0)) {
 871                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 872                         return;
 873                         }
 874                 }
 875
 876         /* If we get to this point, there are no more unvalidated users.
 877          * Therefore we clear the "users need validation" flag.
 878          */
 879
 880         begin_critical_section(S_CONTROL);
 881         get_control();
 882         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 883         put_control();
 884         end_critical_section(S_CONTROL);
 885         cprintf("%d *** End of registration.\n",OK);
 886
 887
 888         }
 889
 890
 891 /*
 892  * get registration info for a user
 893  */
 894 void cmd_greg(char *who)
 895 {
 896         struct usersupp usbuf;
 897         int a,b;
 898         char pbuf[32];
 899
 900         if (!(CC->logged_in)) {
 901                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 902                 return;
 903                 }
 904
 905         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 906
 907         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 908                 cprintf("%d Higher access required.\n",
 909                         ERROR+HIGHER_ACCESS_REQUIRED);
 910                 return;
 911                 }
 912
 913         if (getuser(&usbuf,who) != 0) {
 914                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 915                 return;
 916                 }
 917
 918         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 919         cprintf("%ld\n",usbuf.usernum);
 920         cprintf("%s\n",usbuf.password);
 921         cprintf("%s\n",usbuf.USname);
 922         cprintf("%s\n",usbuf.USaddr);
 923         cprintf("%s\n%s\n%s\n",
 924                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 925         strcpy(pbuf,usbuf.USphone);
 926         usbuf.USphone[0]=0;
 927         for (a=0; a<strlen(pbuf); ++a) {
 928                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 929                         b=strlen(usbuf.USphone);
 930                         usbuf.USphone[b]=pbuf[a];
 931                         usbuf.USphone[b+1]=0;
 932                         }
 933                 }
 934         while(strlen(usbuf.USphone)<10) {
 935                 strcpy(pbuf,usbuf.USphone);
 936                 strcpy(usbuf.USphone," ");
 937                 strcat(usbuf.USphone,pbuf);
 938                 }
 939
 940         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 941                 usbuf.USphone[0],usbuf.USphone[1],
 942                 usbuf.USphone[2],usbuf.USphone[3],
 943                 usbuf.USphone[4],usbuf.USphone[5],
 944                 usbuf.USphone[6],usbuf.USphone[7],
 945                 usbuf.USphone[8],usbuf.USphone[9]);
 946
 947         cprintf("%d\n",usbuf.axlevel);
 948         cprintf("%s\n",usbuf.USemail);
 949         cprintf("000\n");
 950         }
 951
 952 /*
 953  * validate a user
 954  */
 955 void cmd_vali(char *v_args)
 956 {
 957         char user[256];
 958         int newax;
 959         struct usersupp userbuf;
 960
 961         extract(user,v_args,0);
 962         newax = extract_int(v_args,1);
 963
 964         if (!(CC->logged_in)) {
 965                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 966                 return;
 967                 }
 968
 969         if (CC->usersupp.axlevel < 6) {
 970                 cprintf("%d Higher access required.\n",
 971                         ERROR+HIGHER_ACCESS_REQUIRED);
 972                 return;
 973                 }
 974
 975         if (lgetuser(&userbuf,user)!=0) {
 976                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 977                 return;
 978                 }
 979
 980         userbuf.axlevel = newax;
 981         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 982
 983         lputuser(&userbuf);
 984
 985         /* If the access level was set to zero, delete the user */
 986         if (newax == 0) {
 987                 if (purge_user(user)==0) {
 988                         cprintf("%d %s Deleted.\n", OK, userbuf.fullname);
 989                         return;
 990                         }
 991                 }
 992
 993         cprintf("%d ok\n",OK);
 994         }
 995
 996
 997
 998 /*
 999  *  Traverse the user file...
1000  */
1001 void ForEachUser(void (*CallBack)(struct usersupp *EachUser)) {
1002         struct usersupp usbuf;
1003         struct cdbdata *cdbus;
1004
1005         cdb_rewind(CDB_USERSUPP);
1006
1007         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
1008                 memset(&usbuf, 0, sizeof(struct usersupp));
1009                 memcpy(&usbuf, cdbus->ptr,
1010                         ( (cdbus->len > sizeof(struct usersupp)) ?
1011                         sizeof(struct usersupp) : cdbus->len) );
1012                 cdb_free(cdbus);
1013                 (*CallBack)(&usbuf);
1014                 }
1015         }
1016
1017
1018 /*
1019  * List one user (this works with cmd_list)
1020  */
1021 void ListThisUser(struct usersupp *usbuf) {
1022         if (usbuf->axlevel > 0) {
1023                 if ((CC->usersupp.axlevel>=6)
1024                    ||((usbuf->flags&US_UNLISTED)==0)
1025                    ||((CC->internal_pgm))) {
1026                         cprintf("%s|%d|%ld|%ld|%d|%d|",
1027                                 usbuf->fullname,
1028                                 usbuf->axlevel,
1029                                 usbuf->usernum,
1030                                 usbuf->lastcall,
1031                                 usbuf->timescalled,
1032                                 usbuf->posted);
1033                         if (CC->usersupp.axlevel >= 6)
1034                                 cprintf("%s",usbuf->password);
1035                         cprintf("\n");
1036                         }
1037                 }
1038         }
1039
1040 /*
1041  *  List users
1042  */
1043 void cmd_list(void) {
1044         cprintf("%d \n",LISTING_FOLLOWS);
1045         ForEachUser(ListThisUser);
1046         cprintf("000\n");
1047         }
1048
1049
1050
1051
1052 /*
1053  * assorted info we need to check at login
1054  */
1055 void cmd_chek(void) {
1056         int mail = 0;
1057         int regis = 0;
1058         int vali = 0;
1059
1060         if (!(CC->logged_in)) {
1061                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1062                 return;
1063                 }
1064
1065         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
1066         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
1067
1068         if (CC->usersupp.axlevel >= 6) {
1069                 get_control();
1070                 if (CitControl.MMflags&MM_VALID) vali = 1;
1071                 }
1072
1073
1074         /* check for mail */
1075         mail = NewMailCount();
1076
1077         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
1078         }
1079
1080
1081 /*
1082  * check to see if a user exists
1083  */
1084 void cmd_qusr(char *who)
1085 {
1086         struct usersupp usbuf;
1087
1088         if (getuser(&usbuf,who) == 0) {
1089                 cprintf("%d %s\n",OK,usbuf.fullname);
1090                 }
1091         else {
1092                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1093                 }
1094         }
1095
1096
1097 /*
1098  * enter user bio
1099  */
1100 void cmd_ebio(void) {
1101         char buf[256];
1102         FILE *fp;
1103
1104         if (!(CC->logged_in)) {
1105                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1106                 return;
1107                 }
1108
1109         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1110         fp = fopen(buf,"w");
1111         if (fp == NULL) {
1112                 cprintf("%d Cannot create file\n",ERROR);
1113                 return;
1114                 }
1115         cprintf("%d  \n",SEND_LISTING);
1116         while(client_gets(buf), strcmp(buf,"000")) {
1117                 fprintf(fp,"%s\n",buf);
1118                 }
1119         fclose(fp);
1120         }
1121
1122 /*
1123  * read user bio
1124  */
1125 void cmd_rbio(char *cmdbuf)
1126 {
1127         struct usersupp ruser;
1128         char buf[256];
1129         FILE *fp;
1130
1131         extract(buf,cmdbuf,0);
1132         if (getuser(&ruser,buf)!=0) {
1133                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1134                 return;
1135                 }
1136         sprintf(buf,"./bio/%ld",ruser.usernum);
1137
1138         fp = fopen(buf,"r");
1139         if (fp == NULL) {
1140                 cprintf("%d %s has no bio on file.\n",
1141                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1142                 return;
1143                 }
1144         cprintf("%d  \n",LISTING_FOLLOWS);
1145         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1146         fclose(fp);
1147         cprintf("000\n");
1148         }
1149
1150 /*
1151  * list of users who have entered bios
1152  */
1153 void cmd_lbio(void) {
1154         char buf[256];
1155         FILE *ls;
1156         struct usersupp usbuf;
1157
1158         ls=popen("cd ./bio; ls","r");
1159         if (ls==NULL) {
1160                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1161                 return;
1162                 }
1163
1164         cprintf("%d\n",LISTING_FOLLOWS);
1165         while (fgets(buf,255,ls)!=NULL)
1166                 if (getuserbynumber(&usbuf,atol(buf))==0)
1167                         cprintf("%s\n",usbuf.fullname);
1168         pclose(ls);
1169         cprintf("000\n");
1170         }
1171
1172
1173 /*
1174  * Administrative Get User Parameters
1175  */
1176 void cmd_agup(char *cmdbuf) {
1177         struct usersupp usbuf;
1178         char requested_user[256];
1179
1180         if ( (CC->internal_pgm==0)
1181            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1182                 cprintf("%d Higher access required.\n",
1183                         ERROR + HIGHER_ACCESS_REQUIRED);
1184                 return;
1185                 }
1186
1187         extract(requested_user, cmdbuf, 0);
1188         if (getuser(&usbuf, requested_user) != 0) {
1189                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1190                 return;
1191                 }
1192
1193         cprintf("%d %s|%s|%u|%d|%d|%d|%ld|%ld|%d\n",
1194                 OK,
1195                 usbuf.fullname,
1196                 usbuf.password,
1197                 usbuf.flags,
1198                 usbuf.timescalled,
1199                 usbuf.posted,
1200                 (int)usbuf.axlevel,
1201                 usbuf.usernum,
1202                 usbuf.lastcall,
1203                 usbuf.USuserpurge);
1204         }
1205
1206
1207
1208 /*
1209  * Administrative Set User Parameters
1210  */
1211 void cmd_asup(char *cmdbuf) {
1212         struct usersupp usbuf;
1213         char requested_user[256];
1214         int np;
1215         int newax;
1216
1217         if ( (CC->internal_pgm==0)
1218            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1219                 cprintf("%d Higher access required.\n",
1220                         ERROR + HIGHER_ACCESS_REQUIRED);
1221                 return;
1222                 }
1223
1224         extract(requested_user, cmdbuf, 0);
1225         if (lgetuser(&usbuf, requested_user) != 0) {
1226                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1227                 return;
1228                 }
1229
1230         np = num_parms(cmdbuf);
1231         if (np > 1) extract(usbuf.password, cmdbuf, 1);
1232         if (np > 2) usbuf.flags = extract_int(cmdbuf, 2);
1233         if (np > 3) usbuf.timescalled = extract_int(cmdbuf, 3);
1234         if (np > 4) usbuf.posted = extract_int(cmdbuf, 4);
1235         if (np > 5) {
1236                 newax = extract_int(cmdbuf, 5);
1237                 if ((newax >=0) && (newax <= 6)) {
1238                         usbuf.axlevel = extract_int(cmdbuf, 5);
1239                         }
1240                 }
1241         if (np > 7) {
1242                 usbuf.lastcall = extract_long(cmdbuf, 7);
1243                 }
1244         if (np > 8) {
1245                 usbuf.USuserpurge = extract_int(cmdbuf, 8);
1246                 }
1247
1248         lputuser(&usbuf);
1249         if (usbuf.axlevel == 0) {
1250                 if (purge_user(requested_user)==0) {
1251                         cprintf("%d %s deleted.\n", OK, requested_user);
1252                         }
1253                 }
1254         cprintf("%d Ok\n", OK);
1255         }
1256
1257
1258 /*
1259  * Count the number of new mail messages the user has
1260  */
1261 int NewMailCount() {
1262         int num_newmsgs = 0;
1263         int a;
1264         char mailboxname[ROOMNAMELEN];
1265         struct quickroom mailbox;
1266         struct visit vbuf;
1267         struct cdbdata *cdbfr;
1268         long *msglist = NULL;
1269         int num_msgs = 0;
1270
1271         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
1272         if (getroom(&mailbox, mailboxname)!=0) return(0);
1273         CtdlGetRelationship(&vbuf, &CC->usersupp, &mailbox);
1274
1275         cdbfr = cdb_fetch(CDB_MSGLISTS, &mailbox.QRnumber, sizeof(long));
1276
1277         if (cdbfr != NULL) {
1278                 msglist = mallok(cdbfr->len);
1279                 memcpy(msglist, cdbfr->ptr, cdbfr->len);
1280                 num_msgs = cdbfr->len / sizeof(long);
1281                 cdb_free(cdbfr);
1282         }
1283
1284         if (num_msgs > 0) for (a=0; a<num_msgs; ++a) {
1285                 if (msglist[a]>0L) {
1286                         if (msglist[a] > vbuf.v_lastseen) {
1287                                 ++num_newmsgs;
1288                                 }
1289                         }
1290                 }
1291
1292         if (msglist != NULL) phree(msglist);
1293
1294         return(num_newmsgs);
1295         }