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