citadel/control.c

   1 /*
   2  * $Id$
   3  *
   4  * This module handles states which are global to the entire server.
   5  *
   6  */
   7
   8 #include "sysdep.h"
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <stdio.h>
  12 #include <fcntl.h>
  13 #include <signal.h>
  14
  15 #if TIME_WITH_SYS_TIME
  16 # include <sys/time.h>
  17 # include <time.h>
  18 #else
  19 # if HAVE_SYS_TIME_H
  20 #  include <sys/time.h>
  21 # else
  22 #  include <time.h>
  23 # endif
  24 #endif
  25
  26 #include <ctype.h>
  27 #include <string.h>
  28 #include <errno.h>
  29 #include <limits.h>
  30 #include <sys/types.h>
  31 #include <sys/file.h>
  32 #include "citadel.h"
  33 #include "server.h"
  34 #include "control.h"
  35 #include "sysdep_decls.h"
  36 #include "support.h"
  37 #include "config.h"
  38 #include "msgbase.h"
  39 #include "citserver.h"
  40 #include "tools.h"
  41 #include "room_ops.h"
  42 #include "user_ops.h"
  43 #include "database.h"
  44
  45 #ifndef HAVE_SNPRINTF
  46 #include "snprintf.h"
  47 #endif
  48
  49 struct CitControl CitControl;
  50 extern struct config config;
  51 FILE *control_fp = NULL;
  52 long control_highest_user = 0;
  53
  54
  55 /*
  56  * lock_control  -  acquire a lock on the control record file.
  57  *                  This keeps multiple citservers from running concurrently.
  58  */
  59 void lock_control(void)
  60 {
  61 #ifdef HAVE_FLOCK
  62 /*
  63  * TODO: solaris manpages describe this function, but the headers
  64  * don't show it!
  65  */
  66
  67         if (flock(fileno(control_fp), (LOCK_EX | LOCK_NB))) {
  68                 lprintf(CTDL_EMERG, "citserver: unable to lock %s.\n", file_citadel_control);
  69                 lprintf(CTDL_EMERG, "Is another citserver already running?\n");
  70                 exit(CTDLEXIT_CONTROL);
  71         }
  72 #endif
  73 }
  74
  75 /*
  76  * callback to get highest room number when rebuilding control file
  77  */
  78 void control_find_highest(struct ctdlroom *qrbuf, void *data)
  79 {
  80         struct ctdlroom room;
  81         struct cdbdata *cdbfr;
  82         long *msglist;
  83         int num_msgs=0;
  84         int c;
  85
  86
  87         if (qrbuf->QRnumber > CitControl.MMnextroom)
  88                 CitControl.MMnextroom = qrbuf->QRnumber;
  89
  90         getroom (&room, qrbuf->QRname);
  91
  92         /* Load the message list */
  93         cdbfr = cdb_fetch(CDB_MSGLISTS, &room.QRnumber, sizeof(long));
  94         if (cdbfr != NULL) {
  95                 msglist = (long *) cdbfr->ptr;
  96                 num_msgs = cdbfr->len / sizeof(long);
  97         } else {
  98                 return; /* No messages at all?  No further action. */
  99         }
 100
 101         if (num_msgs>0)
 102         {
 103                 for (c=0; c<num_msgs; c++)
 104                 {
 105                         if (msglist[c] > CitControl.MMhighest)
 106                                 CitControl.MMhighest = msglist[c];
 107                 }
 108         }
 109         cdb_free(cdbfr);
 110         return;
 111 }
 112
 113
 114 /*
 115  * Callback to get highest user number.
 116  */
 117
 118 void control_find_user (struct ctdluser *EachUser, void *out_data)
 119 {
 120         if (EachUser->usernum > CitControl.MMnextuser)
 121                 CitControl.MMnextuser = EachUser->usernum;
 122 }
 123
 124
 125 /*
 126  * get_control  -  read the control record into memory.
 127  */
 128 void get_control(void)
 129 {
 130         static int already_have_control = 0;
 131
 132         /*
 133          * If we already have the control record in memory, there's no point
 134          * in reading it from disk again.
 135          */
 136         if (already_have_control) return;
 137
 138         /* Zero it out.  If the control record on disk is missing or short,
 139          * the system functions with all control record fields initialized
 140          * to zero.
 141          */
 142         memset(&CitControl, 0, sizeof(struct CitControl));
 143         if (control_fp == NULL) {
 144                 control_fp = fopen(file_citadel_control, "rb+");
 145                 if (control_fp != NULL) {
 146                         lock_control();
 147                         fchown(fileno(control_fp), config.c_ctdluid, -1);
 148                 }
 149         }
 150         if (control_fp == NULL) {
 151                 control_fp = fopen(file_citadel_control, "wb+");
 152                 if (control_fp != NULL) {
 153                         lock_control();
 154                         fchown(fileno(control_fp), config.c_ctdluid, -1);
 155                         memset(&CitControl, 0, sizeof(struct CitControl));
 156                         // Find highest room number and message number.
 157                         ForEachRoom(control_find_highest, NULL);
 158                         ForEachUser(control_find_user, NULL);
 159                         fwrite(&CitControl, sizeof(struct CitControl),
 160                                1, control_fp);
 161                         rewind(control_fp);
 162                 }
 163         }
 164         if (control_fp == NULL) {
 165                 lprintf(CTDL_ALERT, "ERROR opening %s: %s\n",
 166                                 file_citadel_control,
 167                                 strerror(errno));
 168                 return;
 169         }
 170
 171         rewind(control_fp);
 172         fread(&CitControl, sizeof(struct CitControl), 1, control_fp);
 173         already_have_control = 1;
 174 }
 175
 176 /*
 177  * put_control  -  write the control record to disk.
 178  */
 179 void put_control(void)
 180 {
 181
 182         if (control_fp != NULL) {
 183                 rewind(control_fp);
 184                 fwrite(&CitControl, sizeof(struct CitControl), 1,
 185                        control_fp);
 186                 fflush(control_fp);
 187         }
 188 }
 189
 190 /**
 191  * release_control - close our fd on exit
 192  */
 193 void release_control(void)
 194 {
 195         if (control_fp != NULL)
 196                 fclose(control_fp);
 197         control_fp = NULL;
 198 }
 199
 200 /*
 201  * get_new_message_number()  -  Obtain a new, unique ID to be used for a message.
 202  */
 203 long get_new_message_number(void)
 204 {
 205         long retval = 0L;
 206         begin_critical_section(S_CONTROL);
 207         get_control();
 208         retval = ++CitControl.MMhighest;
 209         put_control();
 210         end_critical_section(S_CONTROL);
 211         return(retval);
 212 }
 213
 214
 215 /*
 216  * get_new_user_number()  -  Obtain a new, unique ID to be used for a user.
 217  */
 218 long get_new_user_number(void)
 219 {
 220         long retval = 0L;
 221         begin_critical_section(S_CONTROL);
 222         get_control();
 223         retval = ++CitControl.MMnextuser;
 224         put_control();
 225         end_critical_section(S_CONTROL);
 226         return(retval);
 227 }
 228
 229
 230
 231 /*
 232  * get_new_room_number()  -  Obtain a new, unique ID to be used for a room.
 233  */
 234 long get_new_room_number(void)
 235 {
 236         long retval = 0L;
 237         begin_critical_section(S_CONTROL);
 238         get_control();
 239         retval = ++CitControl.MMnextroom;
 240         put_control();
 241         end_critical_section(S_CONTROL);
 242         return(retval);
 243 }
 244
 245
 246
 247 /*
 248  * Get or set global configuration options
 249  */
 250 void cmd_conf(char *argbuf)
 251 {
 252         char cmd[16];
 253         char buf[256];
 254         int a;
 255         char *confptr;
 256         char confname[128];
 257
 258         if (CtdlAccessCheck(ac_aide)) return;
 259
 260         extract_token(cmd, argbuf, 0, '|', sizeof cmd);
 261         if (!strcasecmp(cmd, "GET")) {
 262                 cprintf("%d Configuration...\n", LISTING_FOLLOWS);
 263                 cprintf("%s\n", config.c_nodename);
 264                 cprintf("%s\n", config.c_fqdn);
 265                 cprintf("%s\n", config.c_humannode);
 266                 cprintf("%s\n", config.c_phonenum);
 267                 cprintf("%d\n", config.c_creataide);
 268                 cprintf("%d\n", config.c_sleeping);
 269                 cprintf("%d\n", config.c_initax);
 270                 cprintf("%d\n", config.c_regiscall);
 271                 cprintf("%d\n", config.c_twitdetect);
 272                 cprintf("%s\n", config.c_twitroom);
 273                 cprintf("%s\n", config.c_moreprompt);
 274                 cprintf("%d\n", config.c_restrict);
 275                 cprintf("%s\n", config.c_site_location);
 276                 cprintf("%s\n", config.c_sysadm);
 277                 cprintf("%d\n", config.c_maxsessions);
 278                 cprintf("xxx\n"); /* placeholder -- field no longer in use */
 279                 cprintf("%d\n", config.c_userpurge);
 280                 cprintf("%d\n", config.c_roompurge);
 281                 cprintf("%s\n", config.c_logpages);
 282                 cprintf("%d\n", config.c_createax);
 283                 cprintf("%ld\n", config.c_maxmsglen);
 284                 cprintf("%d\n", config.c_min_workers);
 285                 cprintf("%d\n", config.c_max_workers);
 286                 cprintf("%d\n", config.c_pop3_port);
 287                 cprintf("%d\n", config.c_smtp_port);
 288                 cprintf("%d\n", config.c_rfc822_strict_from);
 289                 cprintf("%d\n", config.c_aide_zap);
 290                 cprintf("%d\n", config.c_imap_port);
 291                 cprintf("%ld\n", config.c_net_freq);
 292                 cprintf("%d\n", config.c_disable_newu);
 293                 cprintf("1\n"); /* niu */
 294                 cprintf("%d\n", config.c_purge_hour);
 295 #ifdef HAVE_LDAP
 296                 cprintf("%s\n", config.c_ldap_host);
 297                 cprintf("%d\n", config.c_ldap_port);
 298                 cprintf("%s\n", config.c_ldap_base_dn);
 299                 cprintf("%s\n", config.c_ldap_bind_dn);
 300                 cprintf("%s\n", config.c_ldap_bind_pw);
 301 #else
 302                 cprintf("\n");
 303                 cprintf("0\n");
 304                 cprintf("\n");
 305                 cprintf("\n");
 306                 cprintf("\n");
 307 #endif
 308                 cprintf("%s\n", config.c_ip_addr);
 309                 cprintf("%d\n", config.c_msa_port);
 310                 cprintf("%d\n", config.c_imaps_port);
 311                 cprintf("%d\n", config.c_pop3s_port);
 312                 cprintf("%d\n", config.c_smtps_port);
 313                 cprintf("%d\n", config.c_enable_fulltext);
 314                 cprintf("%d\n", config.c_auto_cull);
 315                 cprintf("%d\n", config.c_instant_expunge);
 316                 cprintf("%d\n", config.c_allow_spoofing);
 317                 cprintf("%d\n", config.c_journal_email);
 318                 cprintf("%d\n", config.c_journal_pubmsgs);
 319                 cprintf("%s\n", config.c_journal_dest);
 320                 cprintf("%s\n", config.c_default_cal_zone);
 321                 cprintf("%d\n", config.c_pftcpdict_port);
 322                 cprintf("%d\n", config.c_managesieve_port);
 323                 cprintf("%d\n", config.c_auth_mode);
 324                 cprintf("%s\n", config.c_funambol_host);
 325                 cprintf("%d\n", config.c_funambol_port);
 326                 cprintf("%s\n", config.c_funambol_source);
 327                 cprintf("%s\n", config.c_funambol_auth);
 328                 cprintf("%d\n", config.c_rbl_at_greeting);
 329                 cprintf("%s\n", config.c_master_user);
 330                 cprintf("%s\n", config.c_master_pass);
 331                 cprintf("%s\n", config.c_pager_program);
 332                 cprintf("%d\n", config.c_imap_keep_from);
 333                 cprintf("000\n");
 334         }
 335
 336         else if (!strcasecmp(cmd, "SET")) {
 337                 unbuffer_output();
 338                 cprintf("%d Send configuration...\n", SEND_LISTING);
 339                 a = 0;
 340                 while (client_getln(buf, sizeof buf), strcmp(buf, "000")) {
 341                         switch (a) {
 342                         case 0:
 343                                 safestrncpy(config.c_nodename, buf,
 344                                             sizeof config.c_nodename);
 345                                 break;
 346                         case 1:
 347                                 safestrncpy(config.c_fqdn, buf,
 348                                             sizeof config.c_fqdn);
 349                                 break;
 350                         case 2:
 351                                 safestrncpy(config.c_humannode, buf,
 352                                             sizeof config.c_humannode);
 353                                 break;
 354                         case 3:
 355                                 safestrncpy(config.c_phonenum, buf,
 356                                             sizeof config.c_phonenum);
 357                                 break;
 358                         case 4:
 359                                 config.c_creataide = atoi(buf);
 360                                 break;
 361                         case 5:
 362                                 config.c_sleeping = atoi(buf);
 363                                 break;
 364                         case 6:
 365                                 config.c_initax = atoi(buf);
 366                                 if (config.c_initax < 1)
 367                                         config.c_initax = 1;
 368                                 if (config.c_initax > 6)
 369                                         config.c_initax = 6;
 370                                 break;
 371                         case 7:
 372                                 config.c_regiscall = atoi(buf);
 373                                 if (config.c_regiscall != 0)
 374                                         config.c_regiscall = 1;
 375                                 break;
 376                         case 8:
 377                                 config.c_twitdetect = atoi(buf);
 378                                 if (config.c_twitdetect != 0)
 379                                         config.c_twitdetect = 1;
 380                                 break;
 381                         case 9:
 382                                 safestrncpy(config.c_twitroom, buf,
 383                                             sizeof config.c_twitroom);
 384                                 break;
 385                         case 10:
 386                                 safestrncpy(config.c_moreprompt, buf,
 387                                             sizeof config.c_moreprompt);
 388                                 break;
 389                         case 11:
 390                                 config.c_restrict = atoi(buf);
 391                                 if (config.c_restrict != 0)
 392                                         config.c_restrict = 1;
 393                                 break;
 394                         case 12:
 395                                 safestrncpy(config.c_site_location, buf,
 396                                             sizeof config.c_site_location);
 397                                 break;
 398                         case 13:
 399                                 safestrncpy(config.c_sysadm, buf,
 400                                             sizeof config.c_sysadm);
 401                                 break;
 402                         case 14:
 403                                 config.c_maxsessions = atoi(buf);
 404                                 if (config.c_maxsessions < 0)
 405                                         config.c_maxsessions = 0;
 406                                 break;
 407                         case 15:
 408                                 /* placeholder -- field no longer in use */
 409                                 break;
 410                         case 16:
 411                                 config.c_userpurge = atoi(buf);
 412                                 break;
 413                         case 17:
 414                                 config.c_roompurge = atoi(buf);
 415                                 break;
 416                         case 18:
 417                                 safestrncpy(config.c_logpages, buf,
 418                                             sizeof config.c_logpages);
 419                                 break;
 420                         case 19:
 421                                 config.c_createax = atoi(buf);
 422                                 if (config.c_createax < 1)
 423                                         config.c_createax = 1;
 424                                 if (config.c_createax > 6)
 425                                         config.c_createax = 6;
 426                                 break;
 427                         case 20:
 428                                 if (atoi(buf) >= 8192)
 429                                         config.c_maxmsglen = atoi(buf);
 430                                 break;
 431                         case 21:
 432                                 if (atoi(buf) >= 2)
 433                                         config.c_min_workers = atoi(buf);
 434                         case 22:
 435                                 if (atoi(buf) >= config.c_min_workers)
 436                                         config.c_max_workers = atoi(buf);
 437                         case 23:
 438                                 config.c_pop3_port = atoi(buf);
 439                                 break;
 440                         case 24:
 441                                 config.c_smtp_port = atoi(buf);
 442                                 break;
 443                         case 25:
 444                                 config.c_rfc822_strict_from = atoi(buf);
 445                                 break;
 446                         case 26:
 447                                 config.c_aide_zap = atoi(buf);
 448                                 if (config.c_aide_zap != 0)
 449                                         config.c_aide_zap = 1;
 450                                 break;
 451                         case 27:
 452                                 config.c_imap_port = atoi(buf);
 453                                 break;
 454                         case 28:
 455                                 config.c_net_freq = atol(buf);
 456                                 break;
 457                         case 29:
 458                                 config.c_disable_newu = atoi(buf);
 459                                 if (config.c_disable_newu != 0)
 460                                         config.c_disable_newu = 1;
 461                                 break;
 462                         case 30:
 463                                 /* niu */
 464                                 break;
 465                         case 31:
 466                                 if ((config.c_purge_hour >= 0)
 467                                    && (config.c_purge_hour <= 23)) {
 468                                         config.c_purge_hour = atoi(buf);
 469                                 }
 470                                 break;
 471 #ifdef HAVE_LDAP
 472                         case 32:
 473                                 safestrncpy(config.c_ldap_host, buf,
 474                                             sizeof config.c_ldap_host);
 475                                 break;
 476                         case 33:
 477                                 config.c_ldap_port = atoi(buf);
 478                                 break;
 479                         case 34:
 480                                 safestrncpy(config.c_ldap_base_dn, buf,
 481                                             sizeof config.c_ldap_base_dn);
 482                                 break;
 483                         case 35:
 484                                 safestrncpy(config.c_ldap_bind_dn, buf,
 485                                             sizeof config.c_ldap_bind_dn);
 486                                 break;
 487                         case 36:
 488                                 safestrncpy(config.c_ldap_bind_pw, buf,
 489                                             sizeof config.c_ldap_bind_pw);
 490                                 break;
 491 #endif
 492                         case 37:
 493                                 safestrncpy(config.c_ip_addr, buf,
 494                                                 sizeof config.c_ip_addr);
 495                         case 38:
 496                                 config.c_msa_port = atoi(buf);
 497                                 break;
 498                         case 39:
 499                                 config.c_imaps_port = atoi(buf);
 500                                 break;
 501                         case 40:
 502                                 config.c_pop3s_port = atoi(buf);
 503                                 break;
 504                         case 41:
 505                                 config.c_smtps_port = atoi(buf);
 506                                 break;
 507                         case 42:
 508                                 config.c_enable_fulltext = atoi(buf);
 509                                 break;
 510                         case 43:
 511                                 config.c_auto_cull = atoi(buf);
 512                                 break;
 513                         case 44:
 514                                 config.c_instant_expunge = atoi(buf);
 515                                 break;
 516                         case 45:
 517                                 config.c_allow_spoofing = atoi(buf);
 518                                 break;
 519                         case 46:
 520                                 config.c_journal_email = atoi(buf);
 521                                 break;
 522                         case 47:
 523                                 config.c_journal_pubmsgs = atoi(buf);
 524                                 break;
 525                         case 48:
 526                                 safestrncpy(config.c_journal_dest, buf,
 527                                                 sizeof config.c_journal_dest);
 528                         case 49:
 529                                 safestrncpy(config.c_default_cal_zone, buf,
 530                                                 sizeof config.c_default_cal_zone);
 531                                 break;
 532                         case 50:
 533                                 config.c_pftcpdict_port = atoi(buf);
 534                                 break;
 535                         case 51:
 536                                 config.c_managesieve_port = atoi(buf);
 537                                 break;
 538                         case 52:
 539                                 config.c_auth_mode = atoi(buf);
 540                         case 53:
 541                                 safestrncpy(config.c_funambol_host, buf,
 542                                         sizeof config.c_funambol_host);
 543                                 break;
 544                         case 54:
 545                                 config.c_funambol_port = atoi(buf);
 546                                 break;
 547                         case 55:
 548                                 safestrncpy(config.c_funambol_source,
 549                                         buf,
 550                                         sizeof config.c_funambol_source);
 551                                 break;
 552                         case 56:
 553                                 safestrncpy(config.c_funambol_auth,
 554                                         buf,
 555                                         sizeof config.c_funambol_auth);
 556                                 break;
 557                         case 57:
 558                                 config.c_rbl_at_greeting = atoi(buf);
 559                                 break;
 560                         case 58:
 561                                 safestrncpy(config.c_master_user, buf, sizeof config.c_master_user);
 562                                 break;
 563                         case 59:
 564                                 safestrncpy(config.c_master_pass, buf, sizeof config.c_master_pass);
 565                                 break;
 566                         case 60:
 567                                 safestrncpy(config.c_pager_program,
 568                                         buf,
 569                                         sizeof config.c_pager_program);
 570                                 break;
 571                         case 61:
 572                                 config.c_imap_keep_from = atoi(buf);
 573                                 break;
 574                         }
 575                         ++a;
 576                 }
 577                 put_config();
 578                 snprintf(buf, sizeof buf,
 579                          "The global system configuration has been edited by %s.\n",
 580                          CC->curr_user);
 581                 aide_message(buf,"Citadel Configuration Manager Message");
 582
 583                 if (!IsEmptyStr(config.c_logpages))
 584                         create_room(config.c_logpages, 3, "", 0, 1, 1, VIEW_BBS);
 585
 586                 /* If full text indexing has been disabled, invalidate the
 587                  * index so it doesn't try to use it later.
 588                  */
 589                 if (config.c_enable_fulltext == 0) {
 590                         CitControl.fulltext_wordbreaker = 0;
 591                         put_control();
 592                 }
 593         }
 594
 595         else if (!strcasecmp(cmd, "GETSYS")) {
 596                 extract_token(confname, argbuf, 1, '|', sizeof confname);
 597                 confptr = CtdlGetSysConfig(confname);
 598                 if (confptr != NULL) {
 599                         cprintf("%d %s\n", LISTING_FOLLOWS, confname);
 600                         client_write(confptr, strlen(confptr));
 601                         if (confptr[strlen(confptr) - 1] != 10)
 602                                 client_write("\n", 1);
 603                         cprintf("000\n");
 604                         free(confptr);
 605                 } else {
 606                         cprintf("%d No such configuration.\n",
 607                                 ERROR + ILLEGAL_VALUE);
 608                 }
 609         }
 610
 611         else if (!strcasecmp(cmd, "PUTSYS")) {
 612                 extract_token(confname, argbuf, 1, '|', sizeof confname);
 613                 unbuffer_output();
 614                 cprintf("%d %s\n", SEND_LISTING, confname);
 615                 confptr = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
 616                 CtdlPutSysConfig(confname, confptr);
 617                 free(confptr);
 618         }
 619
 620         else {
 621                 cprintf("%d Illegal option(s) specified.\n",
 622                         ERROR + ILLEGAL_VALUE);
 623         }
 624 }