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