citadel/server/control.c

   1 //
   2 // This module handles states which are global to the entire server.
   3 //
   4 // Copyright (c) 1987-2023 by the citadel.org team
   5 //
   6 // This program is open source software.  Use, duplication, or disclosure
   7 // is subject to the terms of the GNU General Public License, version 3.
   8
   9 #include <stdio.h>
  10 #include <sys/file.h>
  11 #include <libcitadel.h>
  12
  13 #include "ctdl_module.h"
  14 #include "config.h"
  15 #include "citserver.h"
  16 #include "user_ops.h"
  17 #include "room_ops.h"
  18
  19 long control_highest_user = 0;
  20
  21 // This is the legacy "control record" format for the message base.  If found
  22 // on disk, its contents will be migrated into the system configuration.  Never
  23 // change this.
  24 struct legacy_ctrl_format {
  25         long MMhighest;                 // highest message number in file
  26         unsigned MMflags;               // Global system flags
  27         long MMnextuser;                // highest user number on system
  28         long MMnextroom;                // highest room number on system
  29         int MM_hosted_upgrade_level;    // Server-hosted upgrade level
  30         int MM_fulltext_wordbreaker;    // ID of wordbreaker in use
  31         long MMfulltext;                // highest message number indexed
  32         int MMdbversion;                // Version of Berkeley DB used on previous server run
  33 };
  34
  35
  36 // data that gets passed back and forth between control_find_highest() and its caller
  37 struct cfh {
  38         long highest_roomnum_found;
  39         long highest_msgnum_found;
  40 };
  41
  42
  43 // Callback to get highest room number when rebuilding message base metadata
  44 //
  45 // sanity_diag_mode (can be set by -s flag at startup) may be:
  46 // 0 = attempt to fix inconsistencies
  47 // 1 = show inconsistencies but don't repair them, exit after complete
  48 // 2 = show inconsistencies but don't repair them, continue execution
  49 void control_find_highest(struct ctdlroom *qrbuf, void *data) {
  50         struct cfh *cfh = (struct cfh *)data;
  51         long *msglist;
  52         int num_msgs=0;
  53         int c;
  54
  55         if (qrbuf->QRnumber > cfh->highest_roomnum_found) {
  56                 cfh->highest_roomnum_found = qrbuf->QRnumber;
  57         }
  58
  59         // Load the message list
  60         num_msgs = CtdlFetchMsgList(qrbuf->QRnumber, &msglist);
  61         if (num_msgs > 0) {
  62                 for (c=0; c<num_msgs; c++) {
  63                         if (msglist[c] > cfh->highest_msgnum_found) {
  64                                 cfh->highest_msgnum_found = msglist[c];
  65                         }
  66                 }
  67         }
  68         free(msglist);
  69 }
  70
  71
  72 // Callback to get highest user number.
  73 void control_find_user(char *username, void *out_data) {
  74         struct ctdluser EachUser;
  75
  76         if (CtdlGetUser(&EachUser, username) != 0) {
  77                 return;
  78         }
  79
  80         if (EachUser.usernum > CtdlGetConfigLong("MMnextuser")) {
  81                 syslog(LOG_DEBUG, "control: fixing MMnextuser %ld > %ld , found in %s",
  82                         EachUser.usernum, CtdlGetConfigLong("MMnextuser"), EachUser.fullname
  83                 );
  84                 if (!sanity_diag_mode) {
  85                         CtdlSetConfigLong("MMnextuser", EachUser.usernum);
  86                 }
  87         }
  88 }
  89
  90
  91 // If we have a legacy format control record on disk, import it.
  92 void migrate_legacy_control_record(void) {
  93         FILE *fp = NULL;
  94         struct legacy_ctrl_format c;
  95         memset(&c, 0, sizeof(c));
  96
  97         fp = fopen("citadel.control", "rb+");
  98         if (fp != NULL) {
  99                 syslog(LOG_INFO, "control: legacy format record found -- importing to db");
 100                 fread(&c, sizeof(struct legacy_ctrl_format), 1, fp);
 101
 102                 CtdlSetConfigLong(      "MMhighest",                    c.MMhighest);
 103                 CtdlSetConfigInt(       "MMflags",                      c.MMflags);
 104                 CtdlSetConfigLong(      "MMnextuser",                   c.MMnextuser);
 105                 CtdlSetConfigLong(      "MMnextroom",                   c.MMnextroom);
 106                 CtdlSetConfigInt(       "MM_hosted_upgrade_level",      c.MM_hosted_upgrade_level);
 107                 CtdlSetConfigInt(       "MM_fulltext_wordbreaker",      c.MM_fulltext_wordbreaker);
 108                 CtdlSetConfigLong(      "MMfulltext",                   c.MMfulltext);
 109
 110                 fclose(fp);
 111                 if (unlink("citadel.control") != 0) {
 112                         fprintf(stderr, "Unable to remove legacy control record after migrating it.\n");
 113                         fprintf(stderr, "Exiting to prevent data corruption.\n");
 114                         exit(CTDLEXIT_CONFIG);
 115                 }
 116         }
 117 }
 118
 119
 120 // check_control   -  check the control record has sensible values for message, user and room numbers
 121 void check_control(void) {
 122
 123         syslog(LOG_INFO, "control: sanity checking the recorded highest message and room numbers");
 124         struct cfh cfh;
 125         memset(&cfh, 0, sizeof(struct cfh));
 126         CtdlForEachRoom(control_find_highest, &cfh);
 127
 128         if (cfh.highest_roomnum_found > CtdlGetConfigLong("MMnextroom")) {
 129                 syslog(LOG_DEBUG, "control: fixing MMnextroom %ld > %ld", cfh.highest_roomnum_found, CtdlGetConfigLong("MMnextroom"));
 130                 if (!sanity_diag_mode) {
 131                         CtdlSetConfigLong("MMnextroom", cfh.highest_roomnum_found);
 132                 }
 133         }
 134
 135         if (cfh.highest_msgnum_found > CtdlGetConfigLong("MMhighest")) {
 136                 syslog(LOG_DEBUG, "control: fixing MMhighest %ld > %ld", cfh.highest_msgnum_found, CtdlGetConfigLong("MMhighest"));
 137                 if (!sanity_diag_mode) {
 138                         CtdlSetConfigLong("MMhighest", cfh.highest_msgnum_found);
 139                 }
 140         }
 141
 142         syslog(LOG_INFO, "control: sanity checking the recorded highest user number");
 143         ForEachUser(control_find_user, NULL);
 144
 145         syslog(LOG_INFO, "control: sanity checks complete");
 146
 147         if (sanity_diag_mode == 1) {
 148                 syslog(LOG_INFO, "control: sanity check diagnostic mode is active - exiting now");
 149                 exit(CTDLEXIT_SANITY);
 150         }
 151 }
 152
 153
 154 // get_new_message_number()  -  Obtain a new, unique ID to be used for a message.
 155 long get_new_message_number(void) {
 156         long retval = 0L;
 157         begin_critical_section(S_CONTROL);
 158         retval = CtdlGetConfigLong("MMhighest");
 159         ++retval;
 160         CtdlSetConfigLong("MMhighest", retval);
 161         end_critical_section(S_CONTROL);
 162         return(retval);
 163 }
 164
 165
 166 // CtdlGetCurrentMessageNumber()  -  Obtain the current highest message number in the system
 167 // This provides a quick way to initialize a variable that might be used to indicate
 168 // messages that should not be processed.   For example, an inbox rules script will use this
 169 // to record determine that messages older than this should not be processed.
 170 //
 171 // (Why is this function here?  Can't we just go straight to the config variable it fetches?)
 172 long CtdlGetCurrentMessageNumber(void) {
 173         return CtdlGetConfigLong("MMhighest");
 174 }
 175
 176
 177 // get_new_user_number()  -  Obtain a new, unique ID to be used for a user.
 178 long get_new_user_number(void) {
 179         long retval = 0L;
 180         begin_critical_section(S_CONTROL);
 181         retval = CtdlGetConfigLong("MMnextuser");
 182         ++retval;
 183         CtdlSetConfigLong("MMnextuser", retval);
 184         end_critical_section(S_CONTROL);
 185         return(retval);
 186 }
 187
 188
 189 // get_new_room_number()  -  Obtain a new, unique ID to be used for a room.
 190 long get_new_room_number(void) {
 191         long retval = 0L;
 192         begin_critical_section(S_CONTROL);
 193         retval = CtdlGetConfigLong("MMnextroom");
 194         ++retval;
 195         CtdlSetConfigLong("MMnextroom", retval);
 196         end_critical_section(S_CONTROL);
 197         return(retval);
 198 }
 199
 200
 201 // Helper function for cmd_conf() to handle boolean values
 202 int confbool(char *v) {
 203         if (IsEmptyStr(v)) return(0);
 204         if (atoi(v) != 0) return(1);
 205         return(0);
 206 }
 207
 208
 209 // Get or set global configuration options
 210 void cmd_conf(char *argbuf) {
 211         char cmd[16];
 212         char buf[1024];
 213         int a, i;
 214         long ii;
 215         char *confptr;
 216         char confname[128];
 217
 218         if (CtdlAccessCheck(ac_aide)) return;
 219
 220         extract_token(cmd, argbuf, 0, '|', sizeof cmd);
 221
 222         // CONF GET - retrieve system configuration in legacy format
 223         // This is deprecated; please do not add fields or change their order.
 224         if (!strcasecmp(cmd, "GET")) {
 225                 cprintf("%d Configuration...\n", LISTING_FOLLOWS);
 226                 cprintf("%s\n",         CtdlGetConfigStr("c_nodename"));
 227                 cprintf("%s\n",         CtdlGetConfigStr("c_fqdn"));
 228                 cprintf("%s\n",         CtdlGetConfigStr("c_humannode"));
 229                 cprintf("xxx\n");       // placeholder -- field no longer in use
 230                 cprintf("%d\n",         CtdlGetConfigInt("c_creataide"));
 231                 cprintf("%d\n",         CtdlGetConfigInt("c_sleeping"));
 232                 cprintf("%d\n",         CtdlGetConfigInt("c_initax"));
 233                 cprintf("%d\n",         CtdlGetConfigInt("c_regiscall"));
 234                 cprintf("%d\n",         CtdlGetConfigInt("c_twitdetect"));
 235                 cprintf("%s\n",         CtdlGetConfigStr("c_twitroom"));
 236                 cprintf("%s\n",         CtdlGetConfigStr("c_moreprompt"));
 237                 cprintf("%d\n",         CtdlGetConfigInt("c_restrict"));
 238                 cprintf("%s\n",         CtdlGetConfigStr("c_site_location"));
 239                 cprintf("%s\n",         CtdlGetConfigStr("c_sysadm"));
 240                 cprintf("%d\n",         CtdlGetConfigInt("c_maxsessions"));
 241                 cprintf("xxx\n");       // placeholder -- field no longer in use
 242                 cprintf("%d\n",         CtdlGetConfigInt("c_userpurge"));
 243                 cprintf("%d\n",         CtdlGetConfigInt("c_roompurge"));
 244                 cprintf("%s\n",         CtdlGetConfigStr("c_logpages"));
 245                 cprintf("%d\n",         CtdlGetConfigInt("c_createax"));
 246                 cprintf("%ld\n",        CtdlGetConfigLong("c_maxmsglen"));
 247                 cprintf("%d\n",         CtdlGetConfigInt("c_min_workers"));
 248                 cprintf("%d\n",         CtdlGetConfigInt("c_max_workers"));
 249                 cprintf("%d\n",         CtdlGetConfigInt("c_pop3_port"));
 250                 cprintf("%d\n",         CtdlGetConfigInt("c_smtp_port"));
 251                 cprintf("%d\n",         CtdlGetConfigInt("c_rfc822_strict_from"));
 252                 cprintf("%d\n",         CtdlGetConfigInt("c_aide_zap"));
 253                 cprintf("%d\n",         CtdlGetConfigInt("c_imap_port"));
 254                 cprintf("%ld\n",        CtdlGetConfigLong("c_net_freq"));
 255                 cprintf("%d\n",         CtdlGetConfigInt("c_disable_newu"));
 256                 cprintf("1\n");         // niu
 257                 cprintf("%d\n",         CtdlGetConfigInt("c_purge_hour"));
 258                 cprintf("%s\n",         CtdlGetConfigStr("c_ldap_host"));
 259                 cprintf("%d\n",         CtdlGetConfigInt("c_ldap_port"));
 260                 cprintf("%s\n",         CtdlGetConfigStr("c_ldap_base_dn"));
 261                 cprintf("%s\n",         CtdlGetConfigStr("c_ldap_bind_dn"));
 262                 cprintf("%s\n",         CtdlGetConfigStr("c_ldap_bind_pw"));
 263                 cprintf("%s\n",         CtdlGetConfigStr("c_ip_addr"));
 264                 cprintf("%d\n",         CtdlGetConfigInt("c_msa_port"));
 265                 cprintf("%d\n",         CtdlGetConfigInt("c_imaps_port"));
 266                 cprintf("%d\n",         CtdlGetConfigInt("c_pop3s_port"));
 267                 cprintf("%d\n",         CtdlGetConfigInt("c_smtps_port"));
 268                 cprintf("%d\n",         CtdlGetConfigInt("c_enable_fulltext"));
 269                 cprintf("1\n");
 270                 cprintf("1\n");
 271                 cprintf("%d\n",         CtdlGetConfigInt("c_allow_spoofing"));
 272                 cprintf("%d\n",         CtdlGetConfigInt("c_journal_email"));
 273                 cprintf("%d\n",         CtdlGetConfigInt("c_journal_pubmsgs"));
 274                 cprintf("%s\n",         CtdlGetConfigStr("c_journal_dest"));
 275                 cprintf("%s\n",         CtdlGetConfigStr("c_default_cal_zone"));
 276                 cprintf("%d\n",         CtdlGetConfigInt("c_pftcpdict_port"));
 277                 cprintf("0\n");
 278                 cprintf("%d\n",         CtdlGetConfigInt("c_auth_mode"));
 279                 cprintf("\n");
 280                 cprintf("\n");
 281                 cprintf("\n");
 282                 cprintf("\n");
 283                 cprintf("%d\n",         CtdlGetConfigInt("c_rbl_at_greeting"));
 284                 cprintf("\n");
 285                 cprintf("\n");
 286                 cprintf("%s\n",         CtdlGetConfigStr("c_pager_program"));
 287                 cprintf("%d\n",         CtdlGetConfigInt("c_imap_keep_from"));
 288                 cprintf("%d\n",         CtdlGetConfigInt("c_xmpp_c2s_port"));
 289                 cprintf("%d\n",         CtdlGetConfigInt("c_xmpp_s2s_port"));
 290                 cprintf("%ld\n",        CtdlGetConfigLong("c_pop3_fetch"));
 291                 cprintf("%ld\n",        CtdlGetConfigLong("c_pop3_fastest"));
 292                 cprintf("%d\n",         CtdlGetConfigInt("c_spam_flag_only"));
 293                 cprintf("%d\n",         CtdlGetConfigInt("c_guest_logins"));
 294                 cprintf("%d\n",         CtdlGetConfigInt("c_port_number"));
 295                 cprintf("%d\n",         ctdluid);
 296                 cprintf("%d\n",         CtdlGetConfigInt("c_nntp_port"));
 297                 cprintf("%d\n",         CtdlGetConfigInt("c_nntps_port"));
 298                 cprintf("000\n");
 299         }
 300
 301         // CONF SET - set system configuration in legacy format
 302         // This is deprecated; please do not add fields or change their order.
 303         else if (!strcasecmp(cmd, "SET")) {
 304                 unbuffer_output();
 305                 cprintf("%d Send configuration...\n", SEND_LISTING);
 306                 a = 0;
 307                 while (client_getln(buf, sizeof buf) >= 0 && strcmp(buf, "000")) {
 308                         switch (a) {
 309                         case 0:
 310                                 CtdlSetConfigStr("c_nodename", buf);
 311                                 break;
 312                         case 1:
 313                                 CtdlSetConfigStr("c_fqdn", buf);
 314                                 break;
 315                         case 2:
 316                                 CtdlSetConfigStr("c_humannode", buf);
 317                                 break;
 318                         case 3:
 319                                 // placeholder -- field no longer in use
 320                                 break;
 321                         case 4:
 322                                 CtdlSetConfigInt("c_creataide", confbool(buf));
 323                                 break;
 324                         case 5:
 325                                 CtdlSetConfigInt("c_sleeping", atoi(buf));
 326                                 break;
 327                         case 6:
 328                                 i = atoi(buf);
 329                                 if (i < 1) i = 1;
 330                                 if (i > 6) i = 6;
 331                                 CtdlSetConfigInt("c_initax", i);
 332                                 break;
 333                         case 7:
 334                                 CtdlSetConfigInt("c_regiscall", confbool(buf));
 335                                 break;
 336                         case 8:
 337                                 CtdlSetConfigInt("c_twitdetect", confbool(buf));
 338                                 break;
 339                         case 9:
 340                                 CtdlSetConfigStr("c_twitroom", buf);
 341                                 break;
 342                         case 10:
 343                                 CtdlSetConfigStr("c_moreprompt", buf);
 344                                 break;
 345                         case 11:
 346                                 CtdlSetConfigInt("c_restrict", confbool(buf));
 347                                 break;
 348                         case 12:
 349                                 CtdlSetConfigStr("c_site_location", buf);
 350                                 break;
 351                         case 13:
 352                                 CtdlSetConfigStr("c_sysadm", buf);
 353                                 break;
 354                         case 14:
 355                                 i = atoi(buf);
 356                                 if (i < 0) i = 0;
 357                                 CtdlSetConfigInt("c_maxsessions", i);
 358                                 break;
 359                         case 15:
 360                                 // placeholder -- field no longer in use
 361                                 break;
 362                         case 16:
 363                                 CtdlSetConfigInt("c_userpurge", atoi(buf));
 364                                 break;
 365                         case 17:
 366                                 CtdlSetConfigInt("c_roompurge", atoi(buf));
 367                                 break;
 368                         case 18:
 369                                 CtdlSetConfigStr("c_logpages", buf);
 370                                 break;
 371                         case 19:
 372                                 i = atoi(buf);
 373                                 if (i < 1) i = 1;
 374                                 if (i > 6) i = 6;
 375                                 CtdlSetConfigInt("c_createax", i);
 376                                 break;
 377                         case 20:
 378                                 ii = atol(buf);
 379                                 if (ii >= 8192) {
 380                                         CtdlSetConfigLong("c_maxmsglen", ii);
 381                                 }
 382                                 break;
 383                         case 21:
 384                                 i = atoi(buf);
 385                                 if (i >= 3) {                                   // minimum value
 386                                         CtdlSetConfigInt("c_min_workers", i);
 387                                 }
 388                                 break;
 389                         case 22:
 390                                 i = atoi(buf);
 391                                 if (i >= CtdlGetConfigInt("c_min_workers")) {   // max must be >= min
 392                                         CtdlSetConfigInt("c_max_workers", i);
 393                                 }
 394                                 break;
 395                         case 23:
 396                                 CtdlSetConfigInt("c_pop3_port", atoi(buf));
 397                                 break;
 398                         case 24:
 399                                 CtdlSetConfigInt("c_smtp_port", atoi(buf));
 400                                 break;
 401                         case 25:
 402                                 CtdlSetConfigInt("c_rfc822_strict_from", atoi(buf));
 403                                 break;
 404                         case 26:
 405                                 CtdlSetConfigInt("c_aide_zap", confbool(buf));
 406                                 break;
 407                         case 27:
 408                                 CtdlSetConfigInt("c_imap_port", atoi(buf));
 409                                 break;
 410                         case 28:
 411                                 CtdlSetConfigLong("c_net_freq", atol(buf));
 412                                 break;
 413                         case 29:
 414                                 CtdlSetConfigInt("c_disable_newu", confbool(buf));
 415                                 break;
 416                         case 30:
 417                                 // niu
 418                                 break;
 419                         case 31:
 420                                 i = atoi(buf);
 421                                 if ((i >= 0) && (i <= 23)) {
 422                                         CtdlSetConfigInt("c_purge_hour", i);
 423                                 }
 424                                 break;
 425                         case 32:
 426                                 CtdlSetConfigStr("c_ldap_host", buf);
 427                                 break;
 428                         case 33:
 429                                 CtdlSetConfigInt("c_ldap_port", atoi(buf));
 430                                 break;
 431                         case 34:
 432                                 CtdlSetConfigStr("c_ldap_base_dn", buf);
 433                                 break;
 434                         case 35:
 435                                 CtdlSetConfigStr("c_ldap_bind_dn", buf);
 436                                 break;
 437                         case 36:
 438                                 CtdlSetConfigStr("c_ldap_bind_pw", buf);
 439                                 break;
 440                         case 37:
 441                                 CtdlSetConfigStr("c_ip_addr", buf);
 442                                 break;
 443                         case 38:
 444                                 CtdlSetConfigInt("c_msa_port", atoi(buf));
 445                                 break;
 446                         case 39:
 447                                 CtdlSetConfigInt("c_imaps_port", atoi(buf));
 448                                 break;
 449                         case 40:
 450                                 CtdlSetConfigInt("c_pop3s_port", atoi(buf));
 451                                 break;
 452                         case 41:
 453                                 CtdlSetConfigInt("c_smtps_port", atoi(buf));
 454                                 break;
 455                         case 42:
 456                                 CtdlSetConfigInt("c_enable_fulltext", confbool(buf));
 457                                 break;
 458                         case 43:
 459                                 // niu
 460                                 break;
 461                         case 44:
 462                                 // niu
 463                                 break;
 464                         case 45:
 465                                 CtdlSetConfigInt("c_allow_spoofing", confbool(buf));
 466                                 break;
 467                         case 46:
 468                                 CtdlSetConfigInt("c_journal_email", confbool(buf));
 469                                 break;
 470                         case 47:
 471                                 CtdlSetConfigInt("c_journal_pubmsgs", confbool(buf));
 472                                 break;
 473                         case 48:
 474                                 CtdlSetConfigStr("c_journal_dest", buf);
 475                                 break;
 476                         case 49:
 477                                 CtdlSetConfigStr("c_default_cal_zone", buf);
 478                                 break;
 479                         case 50:
 480                                 CtdlSetConfigInt("c_pftcpdict_port", atoi(buf));
 481                                 break;
 482                         case 51:
 483                                 // niu
 484                                 break;
 485                         case 52:
 486                                 CtdlSetConfigInt("c_auth_mode", atoi(buf));
 487                                 break;
 488                         case 53:
 489                                 // niu
 490                                 break;
 491                         case 54:
 492                                 // niu
 493                                 break;
 494                         case 55:
 495                                 // niu
 496                                 break;
 497                         case 56:
 498                                 // niu
 499                                 break;
 500                         case 57:
 501                                 CtdlSetConfigInt("c_rbl_at_greeting", confbool(buf));
 502                                 break;
 503                         case 58:
 504                                 // niu
 505                                 break;
 506                         case 59:
 507                                 // niu
 508                                 break;
 509                         case 60:
 510                                 CtdlSetConfigStr("c_pager_program", buf);
 511                                 break;
 512                         case 61:
 513                                 CtdlSetConfigInt("c_imap_keep_from", confbool(buf));
 514                                 break;
 515                         case 62:
 516                                 CtdlSetConfigInt("c_xmpp_c2s_port", atoi(buf));
 517                                 break;
 518                         case 63:
 519                                 CtdlSetConfigInt("c_xmpp_s2s_port", atoi(buf));
 520                                 break;
 521                         case 64:
 522                                 CtdlSetConfigLong("c_pop3_fetch", atol(buf));
 523                                 break;
 524                         case 65:
 525                                 CtdlSetConfigLong("c_pop3_fastest", atol(buf));
 526                                 break;
 527                         case 66:
 528                                 CtdlSetConfigInt("c_spam_flag_only", confbool(buf));
 529                                 break;
 530                         case 67:
 531                                 CtdlSetConfigInt("c_guest_logins", confbool(buf));
 532                                 break;
 533                         case 68:
 534                                 CtdlSetConfigInt("c_port_number", atoi(buf));
 535                                 break;
 536                         case 69:
 537                                 // niu
 538                                 break;
 539                         case 70:
 540                                 CtdlSetConfigInt("c_nntp_port", atoi(buf));
 541                                 break;
 542                         case 71:
 543                                 CtdlSetConfigInt("c_nntps_port", atoi(buf));
 544                                 break;
 545                         }
 546                         ++a;
 547                 }
 548                 snprintf(buf, sizeof buf,
 549                         "The global system configuration has been edited by %s.\n",
 550                          (CC->logged_in ? CC->curr_user : "an administrator")
 551                 );
 552                 CtdlAideMessage(buf, "Citadel Configuration Manager Message");
 553
 554                 if (!IsEmptyStr(CtdlGetConfigStr("c_logpages")))
 555                         CtdlCreateRoom(CtdlGetConfigStr("c_logpages"), 3, "", 0, 1, 1, VIEW_BBS);
 556
 557                 // If full text indexing has been disabled, invalidate the index so it doesn't try to use it later.
 558                 if (CtdlGetConfigInt("c_enable_fulltext") == 0) {
 559                         CtdlSetConfigInt("MM_fulltext_wordbreaker", 0);
 560                 }
 561         }
 562
 563         // CONF GETSYS - retrieve arbitrary system configuration stanzas stored in the message base
 564         else if (!strcasecmp(cmd, "GETSYS")) {
 565                 extract_token(confname, argbuf, 1, '|', sizeof confname);
 566                 confptr = CtdlGetSysConfig(confname);
 567                 if (confptr != NULL) {
 568                         long len;
 569
 570                         len = strlen(confptr);
 571                         cprintf("%d %s\n", LISTING_FOLLOWS, confname);
 572                         client_write(confptr, len);
 573                         if ((len > 0) && (confptr[len - 1] != 10))
 574                                 client_write("\n", 1);
 575                         cprintf("000\n");
 576                         free(confptr);
 577                 } else {
 578                         cprintf("%d No such configuration.\n",
 579                                 ERROR + ILLEGAL_VALUE);
 580                 }
 581         }
 582
 583         // CONF PUTSYS - store arbitrary system configuration stanzas in the message base
 584         else if (!strcasecmp(cmd, "PUTSYS")) {
 585                 extract_token(confname, argbuf, 1, '|', sizeof confname);
 586                 unbuffer_output();
 587                 cprintf("%d %s\n", SEND_LISTING, confname);
 588                 confptr = CtdlReadMessageBody(HKEY("000"), CtdlGetConfigLong("c_maxmsglen"), NULL, 0);
 589                 CtdlPutSysConfig(confname, confptr);
 590                 free(confptr);
 591         }
 592
 593         // CONF GETVAL - retrieve configuration variables from the database
 594         // CONF LOADVAL - same thing but can handle variables bigger than 1 KB (deprecated and probably safe to remove)
 595         else if ( (!strcasecmp(cmd, "GETVAL")) || (!strcasecmp(cmd, "LOADVAL")) ) {
 596                 extract_token(confname, argbuf, 1, '|', sizeof confname);
 597                 char *v = CtdlGetConfigStr(confname);
 598                 if ( (v) && (!strcasecmp(cmd, "GETVAL")) ) {
 599                         cprintf("%d %s|\n", CIT_OK, v);
 600                 }
 601                 else if ( (v) && (!strcasecmp(cmd, "LOADVAL")) ) {
 602                         cprintf("%d %d\n", BINARY_FOLLOWS, (int)strlen(v));
 603                         client_write(v, strlen(v));
 604                 }
 605                 else {
 606                         cprintf("%d |\n", ERROR);
 607                 }
 608         }
 609
 610         // CONF PUTVAL - store configuration variables in the database
 611         else if (!strcasecmp(cmd, "PUTVAL")) {
 612                 if (num_tokens(argbuf, '|') < 3) {
 613                         cprintf("%d name and value required\n", ERROR);
 614                 }
 615                 else {
 616                         extract_token(confname, argbuf, 1, '|', sizeof confname);
 617                         extract_token(buf, argbuf, 2, '|', sizeof buf);
 618                         CtdlSetConfigStr(confname, buf);
 619                         cprintf("%d setting '%s' to '%s'\n", CIT_OK, confname, buf);
 620                 }
 621         }
 622
 623         // CONF STOREVAL - store configuration variables in the database bigger than 1 KB (deprecated and probably safe to remove)
 624         else if (!strcasecmp(cmd, "STOREVAL")) {
 625                 if (num_tokens(argbuf, '|') < 3) {
 626                         cprintf("%d name and length required\n", ERROR);
 627                 }
 628                 else {
 629                         extract_token(confname, argbuf, 1, '|', sizeof confname);
 630                         int bytes = extract_int(argbuf, 2);
 631                         char *valbuf = malloc(bytes + 1);
 632                         cprintf("%d %d\n", SEND_BINARY, bytes);
 633                         client_read(valbuf, bytes);
 634                         valbuf[bytes+1] = 0;
 635                         CtdlSetConfigStr(confname, valbuf);
 636                         free(valbuf);
 637                 }
 638         }
 639
 640         // CONF LISTVAL - list configuration variables in the database and their values
 641         else if (!strcasecmp(cmd, "LISTVAL")) {
 642                 struct cdbkeyval cdbcfg;
 643                 int keylen = 0;
 644                 char *key = NULL;
 645                 char *value = NULL;
 646
 647                 cprintf("%d all configuration variables\n", LISTING_FOLLOWS);
 648                 cdb_rewind(CDB_CONFIG);
 649                 while (cdbcfg = cdb_next_item(CDB_CONFIG), cdbcfg.val.ptr!=NULL) {              // always read to the end
 650                         if (cdbcfg.val.len < 1020) {
 651                                 keylen = strlen(cdbcfg.val.ptr);
 652                                 key = cdbcfg.val.ptr;
 653                                 value = cdbcfg.val.ptr + keylen + 1;
 654                                 cprintf("%s|%s\n", key, value);
 655                         }
 656                 }
 657                 cprintf("000\n");
 658         }
 659
 660         else {
 661                 cprintf("%d Illegal option(s) specified.\n", ERROR + ILLEGAL_VALUE);
 662         }
 663 }
 664
 665
 666 typedef struct __ConfType {
 667         ConstStr Name;
 668         long Type;
 669 } ConfType;
 670
 671 ConfType CfgNames[] = {
 672         { {HKEY("localhost") },    0},
 673         { {HKEY("directory") },    0},
 674         { {HKEY("smarthost") },    2},
 675         { {HKEY("fallbackhost") }, 2},
 676         { {HKEY("rbl") },          3},
 677         { {HKEY("spamassassin") }, 3},
 678         { {HKEY("masqdomain") },   1},
 679         { {HKEY("clamav") },       3},
 680         { {HKEY("notify") },       3},
 681         { {NULL, 0}, 0}
 682 };
 683
 684 HashList *CfgNameHash = NULL;
 685 void cmd_gvdn(char *argbuf) {
 686         const ConfType *pCfg;
 687         char *confptr;
 688         long min = atol(argbuf);
 689         const char *Pos = NULL;
 690         const char *PPos = NULL;
 691         const char *HKey;
 692         long HKLen;
 693         StrBuf *Line;
 694         StrBuf *Config;
 695         StrBuf *Cfg;
 696         StrBuf *CfgToken;
 697         HashList *List;
 698         HashPos *It;
 699         void *vptr;
 700
 701         List = NewHash(1, NULL);
 702         Cfg = NewStrBufPlain(CtdlGetConfigStr("c_fqdn"), -1);
 703         Put(List, SKEY(Cfg), Cfg, HFreeStrBuf);
 704         Cfg = NULL;
 705
 706         confptr = CtdlGetSysConfig(INTERNETCFG);
 707         Config = NewStrBufPlain(confptr, -1);
 708         free(confptr);
 709
 710         Line = NewStrBufPlain(NULL, StrLength(Config));
 711         CfgToken = NewStrBufPlain(NULL, StrLength(Config));
 712         while (StrBufSipLine(Line, Config, &Pos)) {
 713                 if (Cfg == NULL)
 714                         Cfg = NewStrBufPlain(NULL, StrLength(Line));
 715                 PPos = NULL;
 716                 StrBufExtract_NextToken(Cfg, Line, &PPos, '|');
 717                 StrBufExtract_NextToken(CfgToken, Line, &PPos, '|');
 718                 if (GetHash(CfgNameHash, SKEY(CfgToken), &vptr) && (vptr != NULL)) {
 719                         pCfg = (ConfType *) vptr;
 720                         if (pCfg->Type <= min)
 721                         {
 722                                 Put(List, SKEY(Cfg), Cfg, HFreeStrBuf);
 723                                 Cfg = NULL;
 724                         }
 725                 }
 726         }
 727
 728         cprintf("%d Valid Domains\n", LISTING_FOLLOWS);
 729         It = GetNewHashPos(List, 1);
 730         while (GetNextHashPos(List, It, &HKLen, &HKey, &vptr)) {
 731                 cputbuf(vptr);
 732                 cprintf("\n");
 733         }
 734         cprintf("000\n");
 735
 736         DeleteHashPos(&It);
 737         DeleteHash(&List);
 738         FreeStrBuf(&Cfg);
 739         FreeStrBuf(&Line);
 740         FreeStrBuf(&CfgToken);
 741         FreeStrBuf(&Config);
 742 }
 743
 744
 745 // MODULE INITIALIZATION STUFF
 746 char *ctdl_module_init_control(void) {
 747         if (!threading) {
 748                 int i;
 749
 750                 CfgNameHash = NewHash(1, NULL);
 751                 for (i = 0; CfgNames[i].Name.Key != NULL; i++)
 752                         Put(CfgNameHash, CKEY(CfgNames[i].Name), &CfgNames[i], reference_free_handler);
 753
 754                 CtdlRegisterProtoHook(cmd_gvdn, "GVDN", "get valid domain names");
 755                 CtdlRegisterProtoHook(cmd_conf, "CONF", "get/set system configuration");
 756         }
 757         // return our id for the log
 758         return "control";
 759 }