citadel/user_ops.c

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