citadel/user_ops.c

   1 /* $Id$ */
   2
   3 /* needed to properly enable crypt() stuff on some systems */
   4 #define _XOPEN_SOURCE
   5 /* needed for str[n]casecmp() on some systems if the above is defined */
   6 #define _XOPEN_SOURCE_EXTENDED
   7 /* needed to enable threads on some systems if the above are defined */
   8 #define _POSIX_C_SOURCE 199506L
   9
  10 #include <stdlib.h>
  11 #include <unistd.h>
  12 #include <stdio.h>
  13 #include <fcntl.h>
  14 #include <signal.h>
  15 #include <pwd.h>
  16 #include <sys/types.h>
  17 #include <sys/time.h>
  18 #include <string.h>
  19 #include <syslog.h>
  20 #include <limits.h>
  21 #include <pthread.h>
  22 #include "citadel.h"
  23 #include "server.h"
  24 #include "database.h"
  25 #include "user_ops.h"
  26 #include "sysdep_decls.h"
  27 #include "support.h"
  28 #include "room_ops.h"
  29 #include "logging.h"
  30 #include "file_ops.h"
  31 #include "control.h"
  32 #include "msgbase.h"
  33 #include "config.h"
  34 #include "dynloader.h"
  35 #include "sysdep.h"
  36
  37
  38 /*
  39  * getuser()  -  retrieve named user into supplied buffer.
  40  *               returns 0 on success
  41  */
  42 int getuser(struct usersupp *usbuf, char name[]) {
  43
  44         char lowercase_name[32];
  45         int a;
  46         struct cdbdata *cdbus;
  47
  48         bzero(usbuf, sizeof(struct usersupp));
  49         for (a=0; a<=strlen(name); ++a) {
  50                 lowercase_name[a] = tolower(name[a]);
  51                 }
  52
  53         cdbus = cdb_fetch(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
  54         if (cdbus == NULL) {
  55                 return(1);      /* user not found */
  56                 }
  57
  58         memcpy(usbuf, cdbus->ptr,
  59                 ( (cdbus->len > sizeof(struct usersupp)) ?
  60                 sizeof(struct usersupp) : cdbus->len) );
  61         cdb_free(cdbus);
  62         return(0);
  63         }
  64
  65
  66 /*
  67  * lgetuser()  -  same as getuser() but locks the record
  68  */
  69 int lgetuser(struct usersupp *usbuf, char *name)
  70 {
  71         int retcode;
  72
  73         retcode = getuser(usbuf,name);
  74         if (retcode == 0) {
  75                 begin_critical_section(S_USERSUPP);
  76                 }
  77         return(retcode);
  78         }
  79
  80
  81 /*
  82  * putuser()  -  write user buffer into the correct place on disk
  83  */
  84 void putuser(struct usersupp *usbuf, char *name)
  85 {
  86         char lowercase_name[32];
  87         int a;
  88
  89         for (a=0; a<=strlen(name); ++a) {
  90                 lowercase_name[a] = tolower(name[a]);
  91                 }
  92
  93         cdb_store(CDB_USERSUPP,
  94                 lowercase_name, strlen(lowercase_name),
  95                 usbuf, sizeof(struct usersupp));
  96
  97         }
  98
  99
 100 /*
 101  * lputuser()  -  same as putuser() but locks the record
 102  */
 103 void lputuser(struct usersupp *usbuf, char *name) {
 104         putuser(usbuf,name);
 105         end_critical_section(S_USERSUPP);
 106         }
 107
 108
 109 /*
 110  * Define a relationship between a user and a room
 111  */
 112 void CtdlSetRelationship(struct visit *newvisit,
 113                         struct usersupp *rel_user,
 114                         struct quickroom *rel_room) {
 115
 116         struct cdbdata *cdbvisit;
 117         struct visit *visits;
 118         int num_visits;
 119         int a;
 120         int replaced = 0;
 121
 122         cdbvisit = cdb_fetch(CDB_VISIT, &rel_user->usernum, sizeof(long));
 123         if (cdbvisit != NULL) {
 124                 num_visits = cdbvisit->len / sizeof(struct visit);
 125                 visits = (struct visit *)
 126                         malloc(num_visits * sizeof(struct visit));
 127                 memcpy(visits, cdbvisit->ptr,
 128                         (num_visits * sizeof(struct visit)));
 129                 cdb_free(cdbvisit);
 130                 }
 131         else {
 132                 num_visits = 0;
 133                 visits = NULL;
 134                 }
 135
 136         /* Replace an existing relationship if possible */
 137         if (num_visits > 0) for (a=0; a<num_visits; ++a) {
 138                 if ( (!strcasecmp(visits[a].v_roomname, rel_room->QRname))
 139                    && (visits[a].v_generation == rel_room->QRgen) ) {
 140                         memcpy(&visits[a], newvisit, sizeof(struct visit));
 141                         replaced = 1;
 142                         }
 143                 }
 144
 145         /* Otherwise, define a new one */
 146         if (replaced == 0) {
 147                 ++num_visits;
 148                 visits = realloc(visits,
 149                         (num_visits * sizeof(struct visit)));
 150                 memcpy(&visits[num_visits-1], newvisit, sizeof(struct visit));
 151                 }
 152
 153         /* Now write the relationship back to disk */
 154         cdb_store(CDB_VISIT,
 155                 &rel_user->usernum, sizeof(long),
 156                 visits,
 157                 (num_visits * sizeof(struct visit)));
 158         free(visits);
 159         }
 160
 161 /*
 162  * Locate a relationship between a user and a room
 163  */
 164 void CtdlGetRelationship(struct visit *vbuf,
 165                         struct usersupp *rel_user,
 166                         struct quickroom *rel_room) {
 167
 168         struct cdbdata *cdbvisit;
 169         struct visit *visits;
 170         int num_visits;
 171         int a;
 172
 173         bzero(vbuf, sizeof(struct visit));
 174         strcpy(vbuf->v_roomname, rel_room->QRname);
 175         vbuf->v_generation = rel_room->QRgen;
 176
 177         cdbvisit = cdb_fetch(CDB_VISIT, &rel_user->usernum, sizeof(long));
 178         if (cdbvisit != NULL) {
 179                 if ((num_visits = cdbvisit->len / sizeof(struct visit)) == 0) {
 180                         cdb_free(cdbvisit);
 181                         return;
 182                 }
 183                 visits = (struct visit *)
 184                         malloc(num_visits * sizeof(struct visit));
 185                 memcpy(visits, cdbvisit->ptr,
 186                         (num_visits * sizeof(struct visit)));
 187                 cdb_free(cdbvisit);
 188                 }
 189         else return;
 190
 191         for (a=0; a<num_visits; ++a) {
 192
 193                 if ( (!strcasecmp(visits[a].v_roomname, rel_room->QRname))
 194                    && (visits[a].v_generation == rel_room->QRgen) ) {
 195                         memcpy(vbuf, &visits[a], sizeof(struct visit));
 196                         }
 197                 }
 198
 199         free(visits);
 200         }
 201
 202
 203 void PurgeStaleRelationships(void) {
 204
 205         struct cdbdata *cdbvisit;
 206         struct visit *visits;
 207         struct quickroom qrbuf;
 208         int num_visits;
 209         int a, purge;
 210
 211         cdbvisit = cdb_fetch(CDB_VISIT, &CC->usersupp.usernum, sizeof(long));
 212         if (cdbvisit != NULL) {
 213                 if ((num_visits = cdbvisit->len / sizeof(struct visit)) == 0) {
 214                         cdb_free(cdbvisit);
 215                         return;
 216                         }
 217                 visits = (struct visit *)
 218                         malloc(num_visits * sizeof(struct visit));
 219                 memcpy(visits, cdbvisit->ptr,
 220                         (num_visits * sizeof(struct visit)));
 221                 cdb_free(cdbvisit);
 222                 }
 223         else return;
 224
 225         for (a=0; a<num_visits; ++a) {
 226                 if (getroom(&qrbuf, visits[a].v_roomname)!=0) {
 227                         purge = 1;
 228                         }
 229                 else if (qrbuf.QRgen != visits[a].v_generation) {
 230                         purge = 1;
 231                         }
 232                 else {
 233                         purge = 0;
 234                         }
 235                 lprintf(9, "U/R REL: <%s> <%ld> <%ld> <%d> %s\n",
 236                         visits[a].v_roomname,
 237                         visits[a].v_generation,
 238                         visits[a].v_lastseen,
 239                         visits[a].v_flags,
 240                         (purge ? "**purging**" : "") );
 241
 242                 if (purge) {
 243                         memcpy(&visits[a], &visits[a+1],
 244                                 (((num_visits-a)-1) * sizeof(struct visit)) );
 245                         --num_visits;
 246                         }
 247
 248                 }
 249
 250         cdb_store(CDB_VISIT, &CC->usersupp.usernum, sizeof(long),
 251                         visits, (num_visits * sizeof(struct visit)));
 252         free(visits);
 253         }
 254
 255
 256
 257 void MailboxName(char *buf, struct usersupp *who, char *prefix) {
 258         sprintf(buf, "%010ld.%s", who->usernum, prefix);
 259         }
 260
 261
 262 /*
 263  * Is the user currently logged in an Aide?
 264  */
 265 int is_aide(void) {
 266         if (CC->usersupp.axlevel >= 6) return(1);
 267         else return(0);
 268         }
 269
 270
 271 /*
 272  * Is the user currently logged in an Aide *or* the room aide for this room?
 273  */
 274 int is_room_aide(void) {
 275         if ( (CC->usersupp.axlevel >= 6)
 276            || (CC->quickroom.QRroomaide == CC->usersupp.usernum) ) {
 277                 return(1);
 278                 }
 279         else {
 280                 return(0);
 281                 }
 282         }
 283
 284 /*
 285  * getuserbynumber()  -  get user by number
 286  *                       returns 0 if user was found
 287  */
 288 int getuserbynumber(struct usersupp *usbuf, long int number)
 289 {
 290         struct cdbdata *cdbus;
 291
 292         cdb_rewind(CDB_USERSUPP);
 293
 294         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 295                 bzero(usbuf, sizeof(struct usersupp));
 296                 memcpy(usbuf, cdbus->ptr,
 297                         ( (cdbus->len > sizeof(struct usersupp)) ?
 298                         sizeof(struct usersupp) : cdbus->len) );
 299                 cdb_free(cdbus);
 300                 if (usbuf->usernum == number) {
 301                         return(0);
 302                         }
 303                 }
 304         return(-1);
 305         }
 306
 307
 308 /*
 309  * USER cmd
 310  */
 311 void cmd_user(char *cmdbuf)
 312 {
 313         char username[256];
 314         char autoname[256];
 315         int found_user = 0;
 316         struct passwd *p;
 317         int a;
 318
 319         extract(username,cmdbuf,0);
 320         username[25] = 0;
 321         strproc(username);
 322
 323         if ((CC->logged_in)) {
 324                 cprintf("%d Already logged in.\n",ERROR);
 325                 return;
 326                 }
 327
 328         found_user = getuser(&CC->usersupp,username);
 329         if (found_user != 0) {
 330                 p = (struct passwd *)getpwnam(username);
 331                 if (p!=NULL) {
 332                         strcpy(autoname,p->pw_gecos);
 333                         for (a=0; a<strlen(autoname); ++a)
 334                                 if (autoname[a]==',') autoname[a]=0;
 335                         found_user = getuser(&CC->usersupp,autoname);
 336                         }
 337                 }
 338         if (found_user == 0) {
 339                 if (((CC->nologin)) && (CC->usersupp.axlevel < 6)) {
 340                         cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 341                         ERROR+MAX_SESSIONS_EXCEEDED,
 342                         config.c_nodename,config.c_maxsessions);
 343                         }
 344                 else {
 345                         strcpy(CC->curr_user,CC->usersupp.fullname);
 346                         cprintf("%d Password required for %s\n",
 347                                 MORE_DATA,CC->curr_user);
 348                         }
 349                 }
 350         else {
 351                 cprintf("%d %s not found.\n",ERROR,username);
 352                 }
 353         }
 354
 355
 356
 357 /*
 358  * session startup code which is common to both cmd_pass() and cmd_newu()
 359  */
 360 void session_startup(void) {
 361         syslog(LOG_NOTICE,"user <%s> logged in",CC->curr_user);
 362
 363         lgetuser(&CC->usersupp,CC->curr_user);
 364         ++(CC->usersupp.timescalled);
 365         CC->fake_username[0] = '\0';
 366         CC->fake_postname[0] = '\0';
 367         CC->fake_hostname[0] = '\0';
 368         CC->fake_roomname[0] = '\0';
 369         CC->last_pager[0] = '\0';
 370         time(&CC->usersupp.lastcall);
 371
 372         /* If this user's name is the name of the system administrator
 373          * (as specified in setup), automatically assign access level 6.
 374          */
 375         if (!strcasecmp(CC->usersupp.fullname, config.c_sysadm)) {
 376                 CC->usersupp.axlevel = 6;
 377                 }
 378
 379         lputuser(&CC->usersupp,CC->curr_user);
 380
 381         /* Run any cleanup routines registered by loadable modules */
 382         PerformSessionHooks(EVT_LOGIN);
 383
 384         cprintf("%d %s|%d|%d|%d|%u|%ld\n",OK,CC->usersupp.fullname,CC->usersupp.axlevel,
 385                 CC->usersupp.timescalled,CC->usersupp.posted,CC->usersupp.flags,
 386                 CC->usersupp.usernum);
 387         usergoto(BASEROOM,0);           /* Enter the lobby */
 388         rec_log(CL_LOGIN,CC->curr_user);
 389         }
 390
 391
 392 /*
 393  * misc things to be taken care of when a user is logged out
 394  */
 395 void logout(struct CitContext *who)
 396 {
 397         who->logged_in = 0;
 398         if (who->download_fp != NULL) {
 399                 fclose(who->download_fp);
 400                 who->download_fp = NULL;
 401                 }
 402         if (who->upload_fp != NULL) {
 403                 abort_upl(who);
 404                 }
 405
 406         /* Do modular stuff... */
 407         PerformSessionHooks(EVT_LOGOUT);
 408         }
 409
 410
 411 void cmd_pass(char *buf)
 412 {
 413         char password[256];
 414         int code;
 415         struct passwd *p;
 416
 417         extract(password,buf,0);
 418
 419         if ((CC->logged_in)) {
 420                 cprintf("%d Already logged in.\n",ERROR);
 421                 return;
 422                 }
 423         if (!strcmp(CC->curr_user,"")) {
 424                 cprintf("%d You must send a name with USER first.\n",ERROR);
 425                 return;
 426                 }
 427         if (getuser(&CC->usersupp,CC->curr_user)) {
 428                 cprintf("%d Can't find user record!\n",ERROR+INTERNAL_ERROR);
 429                 return;
 430                 }
 431
 432         code = (-1);
 433         if (CC->usersupp.USuid == BBSUID) {
 434                 strproc(password);
 435                 strproc(CC->usersupp.password);
 436                 code = strcasecmp(CC->usersupp.password,password);
 437                 }
 438         else {
 439                 p = (struct passwd *)getpwuid(CC->usersupp.USuid);
 440 #ifdef ENABLE_AUTOLOGIN
 441                 if (p!=NULL) {
 442                         if (!strcmp(p->pw_passwd,
 443                            (char *)crypt(password,p->pw_passwd))) {
 444                                 code = 0;
 445                                 lgetuser(&CC->usersupp, CC->curr_user);
 446                                 strcpy(CC->usersupp.password, password);
 447                                 lputuser(&CC->usersupp, CC->curr_user);
 448                                 }
 449                         }
 450 #endif
 451                 }
 452
 453         if (!code) {
 454                 (CC->logged_in) = 1;
 455                 session_startup();
 456                 }
 457         else {
 458                 cprintf("%d Wrong password.\n",ERROR);
 459                 rec_log(CL_BADPW,CC->curr_user);
 460                 }
 461         }
 462
 463
 464 /*
 465  * Delete a user record *and* all of its related resources.
 466  */
 467 int purge_user(char pname[]) {
 468         char filename[64];
 469         char mailboxname[ROOMNAMELEN];
 470         struct usersupp usbuf;
 471         struct quickroom qrbuf;
 472         char lowercase_name[32];
 473         int a;
 474
 475         for (a=0; a<=strlen(pname); ++a) {
 476                 lowercase_name[a] = tolower(pname[a]);
 477                 }
 478
 479         if (getuser(&usbuf, pname) != 0) {
 480                 lprintf(5, "Cannot purge user <%s> - not found\n", pname);
 481                 return(ERROR+NO_SUCH_USER);
 482                 }
 483
 484         lprintf(5, "Deleting user <%s>\n", pname);
 485
 486         /* FIX   Don't delete a user who is currently logged in. */
 487
 488         /* Perform any purge functions registered by server extensions */
 489         PerformUserHooks(usbuf.fullname, usbuf.usernum, EVT_PURGEUSER);
 490
 491         /* delete any existing user/room relationships */
 492         cdb_delete(CDB_VISIT, &usbuf.usernum, sizeof(long));
 493
 494         /* Delete the user's mailbox and its contents */
 495         MailboxName(mailboxname, &usbuf, MAILROOM);
 496         if (getroom(&qrbuf, mailboxname)==0) {
 497                 delete_room(&qrbuf);
 498                 }
 499
 500         /* delete the userlog entry */
 501         cdb_delete(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
 502
 503         /* remove the user's bio file */
 504         sprintf(filename, "./bio/%ld", usbuf.usernum);
 505         unlink(filename);
 506
 507         /* remove the user's picture */
 508         sprintf(filename, "./userpics/%ld.gif", usbuf.usernum);
 509         unlink(filename);
 510
 511         return(0);
 512         }
 513
 514
 515 /*
 516  * create_user()  -  back end processing to create a new user
 517  */
 518 int create_user(char *newusername)
 519 {
 520         struct usersupp usbuf;
 521         int a;
 522         struct passwd *p = NULL;
 523         char username[64];
 524         char mailboxname[ROOMNAMELEN];
 525
 526         strcpy(username, newusername);
 527         strproc(username);
 528
 529 #ifdef ENABLE_AUTOLOGIN
 530         p = (struct passwd *)getpwnam(username);
 531 #endif
 532         if (p != NULL) {
 533                 strcpy(username, p->pw_gecos);
 534                 for (a=0; a<strlen(username); ++a) {
 535                         if (username[a] == ',') username[a] = 0;
 536                         }
 537                 CC->usersupp.USuid = p->pw_uid;
 538                 }
 539         else {
 540                 CC->usersupp.USuid = BBSUID;
 541                 }
 542
 543         if (!getuser(&usbuf,username)) {
 544                 return(ERROR+ALREADY_EXISTS);
 545                 }
 546
 547         strcpy(CC->curr_user,username);
 548         strcpy(CC->usersupp.fullname,username);
 549         strcpy(CC->usersupp.password,"");
 550         (CC->logged_in) = 1;
 551
 552         /* These are the default flags on new accounts */
 553         CC->usersupp.flags =
 554                 US_NEEDVALID|US_LASTOLD|US_DISAPPEAR|US_PAGINATOR|US_FLOORS;
 555
 556         CC->usersupp.timescalled = 0;
 557         CC->usersupp.posted = 0;
 558         CC->usersupp.axlevel = config.c_initax;
 559         CC->usersupp.USscreenwidth = 80;
 560         CC->usersupp.USscreenheight = 24;
 561         time(&CC->usersupp.lastcall);
 562         strcpy(CC->usersupp.USname, "");
 563         strcpy(CC->usersupp.USaddr, "");
 564         strcpy(CC->usersupp.UScity, "");
 565         strcpy(CC->usersupp.USstate, "");
 566         strcpy(CC->usersupp.USzip, "");
 567         strcpy(CC->usersupp.USphone, "");
 568
 569         /* fetch a new user number */
 570         CC->usersupp.usernum = get_new_user_number();
 571
 572         if (CC->usersupp.usernum == 1L) {
 573                 CC->usersupp.axlevel = 6;
 574                 }
 575
 576         /* add user to userlog */
 577         putuser(&CC->usersupp,CC->curr_user);
 578         if (getuser(&CC->usersupp,CC->curr_user)) {
 579                 return(ERROR+INTERNAL_ERROR);
 580                 }
 581
 582         /* give the user a private mailbox */
 583         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
 584         create_room(mailboxname, 4, "", 0);
 585
 586         rec_log(CL_NEWUSER,CC->curr_user);
 587         return(0);
 588         }
 589
 590
 591
 592
 593 /*
 594  * cmd_newu()  -  create a new user account
 595  */
 596 void cmd_newu(char *cmdbuf)
 597 {
 598         int a;
 599         char username[256];
 600
 601         if ((CC->logged_in)) {
 602                 cprintf("%d Already logged in.\n",ERROR);
 603                 return;
 604                 }
 605
 606         if ((CC->nologin)) {
 607                 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 608                 ERROR+MAX_SESSIONS_EXCEEDED,
 609                 config.c_nodename,config.c_maxsessions);
 610                 }
 611
 612         extract(username,cmdbuf,0);
 613         username[25] = 0;
 614         strproc(username);
 615
 616         if (strlen(username)==0) {
 617                 cprintf("%d You must supply a user name.\n",ERROR);
 618                 return;
 619                 }
 620
 621         a = create_user(username);
 622         if ((!strcasecmp(username, "bbs")) ||
 623             (!strcasecmp(username, "new")) ||
 624             (!strcasecmp(username, ".")))
 625         {
 626            cprintf("%d '%s' is an invalid login name.\n", ERROR);
 627            return;
 628         }
 629         if (a==ERROR+ALREADY_EXISTS) {
 630                 cprintf("%d '%s' already exists.\n",
 631                         ERROR+ALREADY_EXISTS,username);
 632                 return;
 633                 }
 634         else if (a==ERROR+INTERNAL_ERROR) {
 635                 cprintf("%d Internal error - user record disappeared?\n",
 636                         ERROR+INTERNAL_ERROR);
 637                 return;
 638                 }
 639         else if (a==0) {
 640                 session_startup();
 641                 }
 642         else {
 643                 cprintf("%d unknown error\n",ERROR);
 644                 }
 645         rec_log(CL_NEWUSER,CC->curr_user);
 646         }
 647
 648
 649
 650 /*
 651  * set password
 652  */
 653 void cmd_setp(char *new_pw)
 654 {
 655         if (!(CC->logged_in)) {
 656                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 657                 return;
 658                 }
 659         if (CC->usersupp.USuid != BBSUID) {
 660                 cprintf("%d Not allowed.  Use the 'passwd' command.\n",ERROR);
 661                 return;
 662                 }
 663         strproc(new_pw);
 664         if (strlen(new_pw)==0) {
 665                 cprintf("%d Password unchanged.\n",OK);
 666                 return;
 667                 }
 668         lgetuser(&CC->usersupp,CC->curr_user);
 669         strcpy(CC->usersupp.password,new_pw);
 670         lputuser(&CC->usersupp,CC->curr_user);
 671         cprintf("%d Password changed.\n",OK);
 672         rec_log(CL_PWCHANGE,CC->curr_user);
 673         PerformSessionHooks(EVT_SETPASS);
 674         }
 675
 676 /*
 677  * get user parameters
 678  */
 679 void cmd_getu(void) {
 680         if (!(CC->logged_in)) {
 681                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 682                 return;
 683                 }
 684         getuser(&CC->usersupp,CC->curr_user);
 685         cprintf("%d %d|%d|%d\n",
 686                 OK,
 687                 CC->usersupp.USscreenwidth,
 688                 CC->usersupp.USscreenheight,
 689                 (CC->usersupp.flags & US_USER_SET)
 690                 );
 691         }
 692
 693 /*
 694  * set user parameters
 695  */
 696 void cmd_setu(char *new_parms)
 697 {
 698
 699         if (num_parms(new_parms)!=3) {
 700                 cprintf("%d Usage error.\n",ERROR);
 701                 return;
 702                 }
 703         if (!(CC->logged_in)) {
 704                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 705                 return;
 706                 }
 707         lgetuser(&CC->usersupp,CC->curr_user);
 708         CC->usersupp.USscreenwidth = extract_int(new_parms,0);
 709         CC->usersupp.USscreenheight = extract_int(new_parms,1);
 710         CC->usersupp.flags = CC->usersupp.flags & (~US_USER_SET);
 711         CC->usersupp.flags = CC->usersupp.flags |
 712                 (extract_int(new_parms,2) & US_USER_SET);
 713         lputuser(&CC->usersupp,CC->curr_user);
 714         cprintf("%d Ok\n",OK);
 715         }
 716
 717 /*
 718  * set last read pointer
 719  */
 720 void cmd_slrp(char *new_ptr)
 721 {
 722         long newlr;
 723         struct visit vbuf;
 724
 725         if (!(CC->logged_in)) {
 726                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 727                 return;
 728                 }
 729
 730         if (!strncasecmp(new_ptr,"highest",7)) {
 731                 newlr = CC->quickroom.QRhighest;
 732                 }
 733         else {
 734                 newlr = atol(new_ptr);
 735                 }
 736
 737         lgetuser(&CC->usersupp, CC->curr_user);
 738
 739         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 740         vbuf.v_lastseen = newlr;
 741         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 742
 743         lputuser(&CC->usersupp, CC->curr_user);
 744         cprintf("%d %ld\n",OK,newlr);
 745         }
 746
 747
 748 /*
 749  * INVT and KICK commands
 750  */
 751 void cmd_invt_kick(char *iuser, int op)
 752                         /* user name */
 753         {               /* 1 = invite, 0 = kick out */
 754         struct usersupp USscratch;
 755         char bbb[256];
 756         struct visit vbuf;
 757
 758         if (!(CC->logged_in)) {
 759                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 760                 return;
 761                 }
 762
 763         if (is_room_aide()==0) {
 764                 cprintf("%d Higher access required.\n",
 765                         ERROR+HIGHER_ACCESS_REQUIRED);
 766                 return;
 767                 }
 768
 769         if (lgetuser(&USscratch,iuser)!=0) {
 770                 cprintf("%d No such user.\n",ERROR);
 771                 return;
 772                 }
 773
 774         CtdlGetRelationship(&vbuf, &USscratch, &CC->quickroom);
 775
 776         if (op==1) {
 777                 vbuf.v_flags = vbuf.v_flags & ~V_FORGET & ~V_LOCKOUT;
 778                 vbuf.v_flags = vbuf.v_flags | V_ACCESS;
 779                 }
 780
 781         if (op==0) {
 782                 vbuf.v_flags = vbuf.v_flags & ~V_ACCESS;
 783                 vbuf.v_flags = vbuf.v_flags | V_FORGET | V_LOCKOUT;
 784                 }
 785
 786         CtdlSetRelationship(&vbuf, &USscratch, &CC->quickroom);
 787
 788         lputuser(&USscratch,iuser);
 789
 790         /* post a message in Aide> saying what we just did */
 791         sprintf(bbb,"%s %s %s> by %s",
 792                 iuser,
 793                 ((op == 1) ? "invited to" : "kicked out of"),
 794                 CC->quickroom.QRname,
 795                 CC->usersupp.fullname);
 796         aide_message(bbb);
 797
 798         cprintf("%d %s %s %s.\n",
 799                 OK, iuser,
 800                 ((op == 1) ? "invited to" : "kicked out of"),
 801                 CC->quickroom.QRname);
 802         return;
 803         }
 804
 805
 806 /*
 807  * forget (Zap) the current room
 808  */
 809 void cmd_forg(void) {
 810         struct visit vbuf;
 811
 812         if (!(CC->logged_in)) {
 813                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 814                 return;
 815                 }
 816
 817         if (is_aide()) {
 818                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 819                 return;
 820                 }
 821
 822         lgetuser(&CC->usersupp,CC->curr_user);
 823         CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 824
 825         vbuf.v_flags = vbuf.v_flags | V_FORGET;
 826
 827         CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
 828         lputuser(&CC->usersupp,CC->curr_user);
 829         cprintf("%d Ok\n",OK);
 830         usergoto(BASEROOM, 0);
 831         }
 832
 833 /*
 834  * Get Next Unregistered User
 835  */
 836 void cmd_gnur(void) {
 837         struct cdbdata *cdbus;
 838         struct usersupp usbuf;
 839
 840         if (!(CC->logged_in)) {
 841                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 842                 return;
 843                 }
 844
 845         if (CC->usersupp.axlevel < 6) {
 846                 cprintf("%d Higher access required.\n",
 847                         ERROR+HIGHER_ACCESS_REQUIRED);
 848                 return;
 849                 }
 850
 851         if ((CitControl.MMflags&MM_VALID)==0) {
 852                 cprintf("%d There are no unvalidated users.\n",OK);
 853                 return;
 854                 }
 855
 856         /* There are unvalidated users.  Traverse the usersupp database,
 857          * and return the first user we find that needs validation.
 858          */
 859         cdb_rewind(CDB_USERSUPP);
 860         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 861                 bzero(&usbuf, sizeof(struct usersupp));
 862                 memcpy(&usbuf, cdbus->ptr,
 863                         ( (cdbus->len > sizeof(struct usersupp)) ?
 864                         sizeof(struct usersupp) : cdbus->len) );
 865                 cdb_free(cdbus);
 866                 if ((usbuf.flags & US_NEEDVALID)
 867                    &&(usbuf.axlevel > 0)) {
 868                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 869                         return;
 870                         }
 871                 }
 872
 873         /* If we get to this point, there are no more unvalidated users.
 874          * Therefore we clear the "users need validation" flag.
 875          */
 876
 877         begin_critical_section(S_CONTROL);
 878         get_control();
 879         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 880         put_control();
 881         end_critical_section(S_CONTROL);
 882         cprintf("%d *** End of registration.\n",OK);
 883
 884
 885         }
 886
 887
 888 /*
 889  * get registration info for a user
 890  */
 891 void cmd_greg(char *who)
 892 {
 893         struct usersupp usbuf;
 894         int a,b;
 895         char pbuf[32];
 896
 897         if (!(CC->logged_in)) {
 898                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 899                 return;
 900                 }
 901
 902         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 903
 904         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 905                 cprintf("%d Higher access required.\n",
 906                         ERROR+HIGHER_ACCESS_REQUIRED);
 907                 return;
 908                 }
 909
 910         if (getuser(&usbuf,who) != 0) {
 911                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 912                 return;
 913                 }
 914
 915         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 916         cprintf("%ld\n",usbuf.usernum);
 917         cprintf("%s\n",usbuf.password);
 918         cprintf("%s\n",usbuf.USname);
 919         cprintf("%s\n",usbuf.USaddr);
 920         cprintf("%s\n%s\n%s\n",
 921                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 922         strcpy(pbuf,usbuf.USphone);
 923         usbuf.USphone[0]=0;
 924         for (a=0; a<strlen(pbuf); ++a) {
 925                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 926                         b=strlen(usbuf.USphone);
 927                         usbuf.USphone[b]=pbuf[a];
 928                         usbuf.USphone[b+1]=0;
 929                         }
 930                 }
 931         while(strlen(usbuf.USphone)<10) {
 932                 strcpy(pbuf,usbuf.USphone);
 933                 strcpy(usbuf.USphone," ");
 934                 strcat(usbuf.USphone,pbuf);
 935                 }
 936
 937         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 938                 usbuf.USphone[0],usbuf.USphone[1],
 939                 usbuf.USphone[2],usbuf.USphone[3],
 940                 usbuf.USphone[4],usbuf.USphone[5],
 941                 usbuf.USphone[6],usbuf.USphone[7],
 942                 usbuf.USphone[8],usbuf.USphone[9]);
 943
 944         cprintf("%d\n",usbuf.axlevel);
 945         cprintf("%s\n",usbuf.USemail);
 946         cprintf("000\n");
 947         }
 948
 949 /*
 950  * validate a user
 951  */
 952 void cmd_vali(char *v_args)
 953 {
 954         char user[256];
 955         int newax;
 956         struct usersupp userbuf;
 957
 958         extract(user,v_args,0);
 959         newax = extract_int(v_args,1);
 960
 961         if (!(CC->logged_in)) {
 962                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 963                 return;
 964                 }
 965
 966         if (CC->usersupp.axlevel < 6) {
 967                 cprintf("%d Higher access required.\n",
 968                         ERROR+HIGHER_ACCESS_REQUIRED);
 969                 return;
 970                 }
 971
 972         if (lgetuser(&userbuf,user)!=0) {
 973                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 974                 return;
 975                 }
 976
 977         userbuf.axlevel = newax;
 978         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 979
 980         lputuser(&userbuf,user);
 981
 982         /* If the access level was set to zero, delete the user */
 983         if (newax == 0) {
 984                 if (purge_user(user)==0) {
 985                         cprintf("%d %s Deleted.\n", OK, userbuf.fullname);
 986                         return;
 987                         }
 988                 }
 989
 990         cprintf("%d ok\n",OK);
 991         }
 992
 993
 994
 995 /*
 996  *  Traverse the user file...
 997  */
 998 void ForEachUser(void (*CallBack)(struct usersupp *EachUser)) {
 999         struct usersupp usbuf;
1000         struct cdbdata *cdbus;
1001
1002         cdb_rewind(CDB_USERSUPP);
1003
1004         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
1005                 bzero(&usbuf, sizeof(struct usersupp));
1006                 memcpy(&usbuf, cdbus->ptr,
1007                         ( (cdbus->len > sizeof(struct usersupp)) ?
1008                         sizeof(struct usersupp) : cdbus->len) );
1009                 cdb_free(cdbus);
1010                 (*CallBack)(&usbuf);
1011                 }
1012         }
1013
1014
1015 /*
1016  * List one user (this works with cmd_list)
1017  */
1018 void ListThisUser(struct usersupp *usbuf) {
1019         if (usbuf->axlevel > 0) {
1020                 if ((CC->usersupp.axlevel>=6)
1021                    ||((usbuf->flags&US_UNLISTED)==0)
1022                    ||((CC->internal_pgm))) {
1023                         cprintf("%s|%d|%ld|%ld|%d|%d|",
1024                                 usbuf->fullname,
1025                                 usbuf->axlevel,
1026                                 usbuf->usernum,
1027                                 usbuf->lastcall,
1028                                 usbuf->timescalled,
1029                                 usbuf->posted);
1030                         if (CC->usersupp.axlevel >= 6)
1031                                 cprintf("%s",usbuf->password);
1032                         cprintf("\n");
1033                         }
1034                 }
1035         }
1036
1037 /*
1038  *  List users
1039  */
1040 void cmd_list(void) {
1041         cprintf("%d \n",LISTING_FOLLOWS);
1042         ForEachUser(ListThisUser);
1043         cprintf("000\n");
1044         }
1045
1046
1047 /*
1048  * enter registration info
1049  */
1050 void cmd_regi(void) {
1051         int a,b,c;
1052         char buf[256];
1053
1054         char tmpname[256];
1055         char tmpaddr[256];
1056         char tmpcity[256];
1057         char tmpstate[256];
1058         char tmpzip[256];
1059         char tmpphone[256];
1060         char tmpemail[256];
1061
1062         if (!(CC->logged_in)) {
1063                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1064                 return;
1065                 }
1066
1067         strcpy(tmpname,"");
1068         strcpy(tmpaddr,"");
1069         strcpy(tmpcity,"");
1070         strcpy(tmpstate,"");
1071         strcpy(tmpzip,"");
1072         strcpy(tmpphone,"");
1073         strcpy(tmpemail,"");
1074
1075         cprintf("%d Send registration...\n",SEND_LISTING);
1076         a=0;
1077         while (client_gets(buf), strcmp(buf,"000")) {
1078                 if (a==0) strcpy(tmpname,buf);
1079                 if (a==1) strcpy(tmpaddr,buf);
1080                 if (a==2) strcpy(tmpcity,buf);
1081                 if (a==3) strcpy(tmpstate,buf);
1082                 if (a==4) {
1083                         for (c=0; c<strlen(buf); ++c) {
1084                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
1085                                         b=strlen(tmpzip);
1086                                         tmpzip[b]=buf[c];
1087                                         tmpzip[b+1]=0;
1088                                         }
1089                                 }
1090                         }
1091                 if (a==5) {
1092                         for (c=0; c<strlen(buf); ++c) {
1093                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
1094                                         b=strlen(tmpphone);
1095                                         tmpphone[b]=buf[c];
1096                                         tmpphone[b+1]=0;
1097                                         }
1098                                 }
1099                         }
1100                 if (a==6) strncpy(tmpemail,buf,31);
1101                 ++a;
1102                 }
1103
1104         tmpname[29]=0;
1105         tmpaddr[24]=0;
1106         tmpcity[14]=0;
1107         tmpstate[2]=0;
1108         tmpzip[9]=0;
1109         tmpphone[10]=0;
1110         tmpemail[31]=0;
1111
1112         lgetuser(&CC->usersupp,CC->curr_user);
1113         strcpy(CC->usersupp.USname,tmpname);
1114         strcpy(CC->usersupp.USaddr,tmpaddr);
1115         strcpy(CC->usersupp.UScity,tmpcity);
1116         strcpy(CC->usersupp.USstate,tmpstate);
1117         strcpy(CC->usersupp.USzip,tmpzip);
1118         strcpy(CC->usersupp.USphone,tmpphone);
1119         strcpy(CC->usersupp.USemail,tmpemail);
1120         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
1121         lputuser(&CC->usersupp,CC->curr_user);
1122
1123         /* set global flag calling for validation */
1124         begin_critical_section(S_CONTROL);
1125         get_control();
1126         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
1127         put_control();
1128         end_critical_section(S_CONTROL);
1129         cprintf("%d *** End of registration.\n",OK);
1130         }
1131
1132
1133 /*
1134  * assorted info we need to check at login
1135  */
1136 void cmd_chek(void) {
1137         int mail = 0;
1138         int regis = 0;
1139         int vali = 0;
1140
1141         if (!(CC->logged_in)) {
1142                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1143                 return;
1144                 }
1145
1146         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
1147         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
1148
1149         if (CC->usersupp.axlevel >= 6) {
1150                 get_control();
1151                 if (CitControl.MMflags&MM_VALID) vali = 1;
1152                 }
1153
1154
1155         /* check for mail */
1156         mail = NewMailCount();
1157
1158         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
1159         }
1160
1161
1162 /*
1163  * check to see if a user exists
1164  */
1165 void cmd_qusr(char *who)
1166 {
1167         struct usersupp usbuf;
1168
1169         if (getuser(&usbuf,who) == 0) {
1170                 cprintf("%d %s\n",OK,usbuf.fullname);
1171                 }
1172         else {
1173                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1174                 }
1175         }
1176
1177
1178 /*
1179  * enter user bio
1180  */
1181 void cmd_ebio(void) {
1182         char buf[256];
1183         FILE *fp;
1184
1185         if (!(CC->logged_in)) {
1186                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1187                 return;
1188                 }
1189
1190         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1191         fp = fopen(buf,"w");
1192         if (fp == NULL) {
1193                 cprintf("%d Cannot create file\n",ERROR);
1194                 return;
1195                 }
1196         cprintf("%d  \n",SEND_LISTING);
1197         while(client_gets(buf), strcmp(buf,"000")) {
1198                 fprintf(fp,"%s\n",buf);
1199                 }
1200         fclose(fp);
1201         }
1202
1203 /*
1204  * read user bio
1205  */
1206 void cmd_rbio(char *cmdbuf)
1207 {
1208         struct usersupp ruser;
1209         char buf[256];
1210         FILE *fp;
1211
1212         extract(buf,cmdbuf,0);
1213         if (getuser(&ruser,buf)!=0) {
1214                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1215                 return;
1216                 }
1217         sprintf(buf,"./bio/%ld",ruser.usernum);
1218
1219         fp = fopen(buf,"r");
1220         if (fp == NULL) {
1221                 cprintf("%d %s has no bio on file.\n",
1222                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1223                 return;
1224                 }
1225         cprintf("%d  \n",LISTING_FOLLOWS);
1226         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1227         fclose(fp);
1228         cprintf("000\n");
1229         }
1230
1231 /*
1232  * list of users who have entered bios
1233  */
1234 void cmd_lbio(void) {
1235         char buf[256];
1236         FILE *ls;
1237         struct usersupp usbuf;
1238
1239         ls=popen("cd ./bio; ls","r");
1240         if (ls==NULL) {
1241                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1242                 return;
1243                 }
1244
1245         cprintf("%d\n",LISTING_FOLLOWS);
1246         while (fgets(buf,255,ls)!=NULL)
1247                 if (getuserbynumber(&usbuf,atol(buf))==0)
1248                         cprintf("%s\n",usbuf.fullname);
1249         pclose(ls);
1250         cprintf("000\n");
1251         }
1252
1253
1254 /*
1255  * Administrative Get User Parameters
1256  */
1257 void cmd_agup(char *cmdbuf) {
1258         struct usersupp usbuf;
1259         char requested_user[256];
1260
1261         if ( (CC->internal_pgm==0)
1262            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1263                 cprintf("%d Higher access required.\n",
1264                         ERROR + HIGHER_ACCESS_REQUIRED);
1265                 return;
1266                 }
1267
1268         extract(requested_user, cmdbuf, 0);
1269         if (getuser(&usbuf, requested_user) != 0) {
1270                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1271                 return;
1272                 }
1273
1274         cprintf("%d %s|%s|%u|%d|%d|%d|%ld|%d\n",
1275                 OK,
1276                 usbuf.fullname,
1277                 usbuf.password,
1278                 usbuf.flags,
1279                 usbuf.timescalled,
1280                 usbuf.posted,
1281                 (int)usbuf.axlevel,
1282                 usbuf.usernum,
1283                 usbuf.USuserpurge);
1284         }
1285
1286
1287
1288 /*
1289  * Administrative Set User Parameters
1290  */
1291 void cmd_asup(char *cmdbuf) {
1292         struct usersupp usbuf;
1293         char requested_user[256];
1294         int np;
1295         int newax;
1296
1297         if ( (CC->internal_pgm==0)
1298            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1299                 cprintf("%d Higher access required.\n",
1300                         ERROR + HIGHER_ACCESS_REQUIRED);
1301                 return;
1302                 }
1303
1304         extract(requested_user, cmdbuf, 0);
1305         if (lgetuser(&usbuf, requested_user) != 0) {
1306                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1307                 return;
1308                 }
1309
1310         np = num_parms(cmdbuf);
1311         if (np > 1) extract(usbuf.password, cmdbuf, 1);
1312         if (np > 2) usbuf.flags = extract_int(cmdbuf, 2);
1313         if (np > 3) usbuf.timescalled = extract_int(cmdbuf, 3);
1314         if (np > 4) usbuf.posted = extract_int(cmdbuf, 4);
1315         if (np > 5) {
1316                 newax = extract_int(cmdbuf, 5);
1317                 if ((newax >=0) && (newax <= 6)) {
1318                         usbuf.axlevel = extract_int(cmdbuf, 5);
1319                         }
1320                 }
1321         if (np > 7) {
1322                 usbuf.USuserpurge = extract_int(cmdbuf, 7);
1323                 }
1324
1325         lputuser(&usbuf, requested_user);
1326         if (usbuf.axlevel == 0) {
1327                 if (purge_user(requested_user)==0) {
1328                         cprintf("%d %s deleted.\n", OK, requested_user);
1329                         }
1330                 }
1331         cprintf("%d Ok\n", OK);
1332         }
1333
1334
1335 /*
1336  * Count the number of new mail messages the user has
1337  */
1338 int NewMailCount() {
1339         int num_newmsgs = 0;
1340         int a;
1341         char mailboxname[32];
1342         struct quickroom mailbox;
1343         struct visit vbuf;
1344
1345         MailboxName(mailboxname, &CC->usersupp, MAILROOM);
1346         if (getroom(&mailbox, mailboxname)!=0) return(0);
1347         CtdlGetRelationship(&vbuf, &CC->usersupp, &mailbox);
1348
1349         get_msglist(&mailbox);
1350         for (a=0; a<CC->num_msgs; ++a) {
1351                 if (MessageFromList(a)>0L) {
1352                         if (MessageFromList(a) > vbuf.v_lastseen) {
1353                                 ++num_newmsgs;
1354                                 }
1355                         }
1356                 }
1357
1358         return(num_newmsgs);
1359         }