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 <libcitadel.h>
  33 #include "citadel.h"
  34 #include "server.h"
  35 #include "control.h"
  36 #include "sysdep_decls.h"
  37 #include "support.h"
  38 #include "config.h"
  39 #include "msgbase.h"
  40 #include "citserver.h"
  41 #include "room_ops.h"
  42 #include "user_ops.h"
  43 #include "database.h"
  44 #include "threads.h"
  45
  46 #ifndef HAVE_SNPRINTF
  47 #include "snprintf.h"
  48 #endif
  49
  50 struct CitControl CitControl;
  51 extern struct config config;
  52 FILE *control_fp = NULL;
  53 long control_highest_user = 0;
  54
  55
  56 /*
  57  * lock_control  -  acquire a lock on the control record file.
  58  *                  This keeps multiple citservers from running concurrently.
  59  */
  60 void lock_control(void)
  61 {
  62 #ifdef HAVE_FLOCK
  63 /*
  64  * TODO: solaris manpages describe this function, but the headers
  65  * don't show it!
  66  */
  67
  68         if (flock(fileno(control_fp), (LOCK_EX | LOCK_NB))) {
  69                 lprintf(CTDL_EMERG, "citserver: unable to lock %s.\n", file_citadel_control);
  70                 lprintf(CTDL_EMERG, "Is another citserver already running?\n");
  71                 exit(CTDLEXIT_CONTROL);
  72         }
  73 #endif
  74 }
  75
  76 /*
  77  * callback to get highest room number when rebuilding control file
  78  */
  79 void control_find_highest(struct ctdlroom *qrbuf, void *data)
  80 {
  81         struct ctdlroom room;
  82         struct cdbdata *cdbfr;
  83         long *msglist;
  84         int num_msgs=0;
  85         int c;
  86
  87
  88         if (qrbuf->QRnumber > CitControl.MMnextroom)
  89                 CitControl.MMnextroom = qrbuf->QRnumber;
  90
  91         getroom (&room, qrbuf->QRname);
  92
  93         /* Load the message list */
  94         cdbfr = cdb_fetch(CDB_MSGLISTS, &room.QRnumber, sizeof(long));
  95         if (cdbfr != NULL) {
  96                 msglist = (long *) cdbfr->ptr;
  97                 num_msgs = cdbfr->len / sizeof(long);
  98         } else {
  99                 return; /* No messages at all?  No further action. */
 100         }
 101
 102         if (num_msgs>0)
 103         {
 104                 for (c=0; c<num_msgs; c++)
 105                 {
 106                         if (msglist[c] > CitControl.MMhighest)
 107                                 CitControl.MMhighest = msglist[c];
 108                 }
 109         }
 110         cdb_free(cdbfr);
 111         return;
 112 }
 113
 114
 115 /*
 116  * Callback to get highest user number.
 117  */
 118
 119 void control_find_user (struct ctdluser *EachUser, void *out_data)
 120 {
 121         if (EachUser->usernum > CitControl.MMnextuser)
 122                 CitControl.MMnextuser = EachUser->usernum;
 123 }
 124
 125
 126 /*
 127  * get_control  -  read the control record into memory.
 128  */
 129 void get_control(void)
 130 {
 131         static int already_have_control = 0;
 132
 133         /*
 134          * If we already have the control record in memory, there's no point
 135          * in reading it from disk again.
 136          */
 137         if (already_have_control) return;
 138
 139         /* Zero it out.  If the control record on disk is missing or short,
 140          * the system functions with all control record fields initialized
 141          * to zero.
 142          */
 143         memset(&CitControl, 0, sizeof(struct CitControl));
 144         if (control_fp == NULL) {
 145                 control_fp = fopen(file_citadel_control, "rb+");
 146                 if (control_fp != NULL) {
 147                         lock_control();
 148                         fchown(fileno(control_fp), config.c_ctdluid, -1);
 149                 }
 150         }
 151         if (control_fp == NULL) {
 152                 control_fp = fopen(file_citadel_control, "wb+");
 153                 if (control_fp != NULL) {
 154                         lock_control();
 155                         fchown(fileno(control_fp), config.c_ctdluid, -1);
 156                         memset(&CitControl, 0, sizeof(struct CitControl));
 157                         // Find highest room number and message number.
 158                         ForEachRoom(control_find_highest, NULL);
 159                         ForEachUser(control_find_user, NULL);
 160                         fwrite(&CitControl, sizeof(struct CitControl),
 161                                1, control_fp);
 162                         rewind(control_fp);
 163                 }
 164         }
 165         if (control_fp == NULL) {
 166                 lprintf(CTDL_ALERT, "ERROR opening %s: %s\n",
 167                                 file_citadel_control,
 168                                 strerror(errno));
 169                 return;
 170         }
 171
 172         rewind(control_fp);
 173         fread(&CitControl, sizeof(struct CitControl), 1, control_fp);
 174         already_have_control = 1;
 175 }
 176
 177 /*
 178  * put_control  -  write the control record to disk.
 179  */
 180 void put_control(void)
 181 {
 182
 183         if (control_fp != NULL) {
 184                 rewind(control_fp);
 185                 fwrite(&CitControl, sizeof(struct CitControl), 1,
 186                        control_fp);
 187                 fflush(control_fp);
 188         }
 189 }
 190
 191 /**
 192  * release_control - close our fd on exit
 193  */
 194 void release_control(void)
 195 {
 196         if (control_fp != NULL)
 197                 fclose(control_fp);
 198         control_fp = NULL;
 199 }
 200
 201 /*
 202  * get_new_message_number()  -  Obtain a new, unique ID to be used for a message.
 203  */
 204 long get_new_message_number(void)
 205 {
 206         long retval = 0L;
 207         begin_critical_section(S_CONTROL);
 208         get_control();
 209         retval = ++CitControl.MMhighest;
 210         put_control();
 211         end_critical_section(S_CONTROL);
 212         return(retval);
 213 }
 214
 215
 216 /*
 217  * get_new_user_number()  -  Obtain a new, unique ID to be used for a user.
 218  */
 219 long get_new_user_number(void)
 220 {
 221         long retval = 0L;
 222         begin_critical_section(S_CONTROL);
 223         get_control();
 224         retval = ++CitControl.MMnextuser;
 225         put_control();
 226         end_critical_section(S_CONTROL);
 227         return(retval);
 228 }
 229
 230
 231
 232 /*
 233  * get_new_room_number()  -  Obtain a new, unique ID to be used for a room.
 234  */
 235 long get_new_room_number(void)
 236 {
 237         long retval = 0L;
 238         begin_critical_section(S_CONTROL);
 239         get_control();
 240         retval = ++CitControl.MMnextroom;
 241         put_control();
 242         end_critical_section(S_CONTROL);
 243         return(retval);
 244 }
 245
 246
 247
 248 /*
 249  * Get or set global configuration options
 250  */
 251 void cmd_conf(char *argbuf)
 252 {
 253         char cmd[16];
 254         char buf[256];
 255         int a;
 256         char *confptr;
 257         char confname[128];
 258
 259         if (CtdlAccessCheck(ac_aide)) return;
 260
 261         extract_token(cmd, argbuf, 0, '|', sizeof cmd);
 262         if (!strcasecmp(cmd, "GET")) {
 263                 cprintf("%d Configuration...\n", LISTING_FOLLOWS);
 264                 cprintf("%s\n", config.c_nodename);
 265                 cprintf("%s\n", config.c_fqdn);
 266                 cprintf("%s\n", config.c_humannode);
 267                 cprintf("%s\n", config.c_phonenum);
 268                 cprintf("%d\n", config.c_creataide);
 269                 cprintf("%d\n", config.c_sleeping);
 270                 cprintf("%d\n", config.c_initax);
 271                 cprintf("%d\n", config.c_regiscall);
 272                 cprintf("%d\n", config.c_twitdetect);
 273                 cprintf("%s\n", config.c_twitroom);
 274                 cprintf("%s\n", config.c_moreprompt);
 275                 cprintf("%d\n", config.c_restrict);
 276                 cprintf("%s\n", config.c_site_location);
 277                 cprintf("%s\n", config.c_sysadm);
 278                 cprintf("%d\n", config.c_maxsessions);
 279                 cprintf("xxx\n"); /* placeholder -- field no longer in use */
 280                 cprintf("%d\n", config.c_userpurge);
 281                 cprintf("%d\n", config.c_roompurge);
 282                 cprintf("%s\n", config.c_logpages);
 283                 cprintf("%d\n", config.c_createax);
 284                 cprintf("%ld\n", config.c_maxmsglen);
 285                 cprintf("%d\n", config.c_min_workers);
 286                 cprintf("%d\n", config.c_max_workers);
 287                 cprintf("%d\n", config.c_pop3_port);
 288                 cprintf("%d\n", config.c_smtp_port);
 289                 cprintf("%d\n", config.c_rfc822_strict_from);
 290                 cprintf("%d\n", config.c_aide_zap);
 291                 cprintf("%d\n", config.c_imap_port);
 292                 cprintf("%ld\n", config.c_net_freq);
 293                 cprintf("%d\n", config.c_disable_newu);
 294                 cprintf("1\n"); /* niu */
 295                 cprintf("%d\n", config.c_purge_hour);
 296 #ifdef HAVE_LDAP
 297                 cprintf("%s\n", config.c_ldap_host);
 298                 cprintf("%d\n", config.c_ldap_port);
 299                 cprintf("%s\n", config.c_ldap_base_dn);
 300                 cprintf("%s\n", config.c_ldap_bind_dn);
 301                 cprintf("%s\n", config.c_ldap_bind_pw);
 302 #else
 303                 cprintf("\n");
 304                 cprintf("0\n");
 305                 cprintf("\n");
 306                 cprintf("\n");
 307                 cprintf("\n");
 308 #endif
 309                 cprintf("%s\n", config.c_ip_addr);
 310                 cprintf("%d\n", config.c_msa_port);
 311                 cprintf("%d\n", config.c_imaps_port);
 312                 cprintf("%d\n", config.c_pop3s_port);
 313                 cprintf("%d\n", config.c_smtps_port);
 314                 cprintf("%d\n", config.c_enable_fulltext);
 315                 cprintf("%d\n", config.c_auto_cull);
 316                 cprintf("%d\n", config.c_instant_expunge);
 317                 cprintf("%d\n", config.c_allow_spoofing);
 318                 cprintf("%d\n", config.c_journal_email);
 319                 cprintf("%d\n", config.c_journal_pubmsgs);
 320                 cprintf("%s\n", config.c_journal_dest);
 321                 cprintf("%s\n", config.c_default_cal_zone);
 322                 cprintf("%d\n", config.c_pftcpdict_port);
 323                 cprintf("%d\n", config.c_managesieve_port);
 324                 cprintf("%d\n", config.c_auth_mode);
 325                 cprintf("%s\n", config.c_funambol_host);
 326                 cprintf("%d\n", config.c_funambol_port);
 327                 cprintf("%s\n", config.c_funambol_source);
 328                 cprintf("%s\n", config.c_funambol_auth);
 329                 cprintf("%d\n", config.c_rbl_at_greeting);
 330                 cprintf("%s\n", config.c_master_user);
 331                 cprintf("%s\n", config.c_master_pass);
 332                 cprintf("%s\n", config.c_pager_program);
 333                 cprintf("%d\n", config.c_imap_keep_from);
 334                 cprintf("%d\n", config.c_xmpp_c2s_port);
 335                 cprintf("%d\n", config.c_xmpp_s2s_port);
 336                 cprintf("%ld\n", config.c_pop3_fetch);
 337                 cprintf("%ld\n", config.c_pop3_fastest);
 338                 cprintf("000\n");
 339         }
 340
 341         else if (!strcasecmp(cmd, "SET")) {
 342                 unbuffer_output();
 343                 cprintf("%d Send configuration...\n", SEND_LISTING);
 344                 a = 0;
 345                 while (client_getln(buf, sizeof buf), strcmp(buf, "000")) {
 346                         switch (a) {
 347                         case 0:
 348                                 safestrncpy(config.c_nodename, buf,
 349                                             sizeof config.c_nodename);
 350                                 break;
 351                         case 1:
 352                                 safestrncpy(config.c_fqdn, buf,
 353                                             sizeof config.c_fqdn);
 354                                 break;
 355                         case 2:
 356                                 safestrncpy(config.c_humannode, buf,
 357                                             sizeof config.c_humannode);
 358                                 break;
 359                         case 3:
 360                                 safestrncpy(config.c_phonenum, buf,
 361                                             sizeof config.c_phonenum);
 362                                 break;
 363                         case 4:
 364                                 config.c_creataide = atoi(buf);
 365                                 break;
 366                         case 5:
 367                                 config.c_sleeping = atoi(buf);
 368                                 break;
 369                         case 6:
 370                                 config.c_initax = atoi(buf);
 371                                 if (config.c_initax < 1)
 372                                         config.c_initax = 1;
 373                                 if (config.c_initax > 6)
 374                                         config.c_initax = 6;
 375                                 break;
 376                         case 7:
 377                                 config.c_regiscall = atoi(buf);
 378                                 if (config.c_regiscall != 0)
 379                                         config.c_regiscall = 1;
 380                                 break;
 381                         case 8:
 382                                 config.c_twitdetect = atoi(buf);
 383                                 if (config.c_twitdetect != 0)
 384                                         config.c_twitdetect = 1;
 385                                 break;
 386                         case 9:
 387                                 safestrncpy(config.c_twitroom, buf,
 388                                             sizeof config.c_twitroom);
 389                                 break;
 390                         case 10:
 391                                 safestrncpy(config.c_moreprompt, buf,
 392                                             sizeof config.c_moreprompt);
 393                                 break;
 394                         case 11:
 395                                 config.c_restrict = atoi(buf);
 396                                 if (config.c_restrict != 0)
 397                                         config.c_restrict = 1;
 398                                 break;
 399                         case 12:
 400                                 safestrncpy(config.c_site_location, buf,
 401                                             sizeof config.c_site_location);
 402                                 break;
 403                         case 13:
 404                                 safestrncpy(config.c_sysadm, buf,
 405                                             sizeof config.c_sysadm);
 406                                 break;
 407                         case 14:
 408                                 config.c_maxsessions = atoi(buf);
 409                                 if (config.c_maxsessions < 0)
 410                                         config.c_maxsessions = 0;
 411                                 break;
 412                         case 15:
 413                                 /* placeholder -- field no longer in use */
 414                                 break;
 415                         case 16:
 416                                 config.c_userpurge = atoi(buf);
 417                                 break;
 418                         case 17:
 419                                 config.c_roompurge = atoi(buf);
 420                                 break;
 421                         case 18:
 422                                 safestrncpy(config.c_logpages, buf,
 423                                             sizeof config.c_logpages);
 424                                 break;
 425                         case 19:
 426                                 config.c_createax = atoi(buf);
 427                                 if (config.c_createax < 1)
 428                                         config.c_createax = 1;
 429                                 if (config.c_createax > 6)
 430                                         config.c_createax = 6;
 431                                 break;
 432                         case 20:
 433                                 if (atoi(buf) >= 8192)
 434                                         config.c_maxmsglen = atoi(buf);
 435                                 break;
 436                         case 21:
 437                                 if (atoi(buf) >= 2)
 438                                         config.c_min_workers = atoi(buf);
 439                         case 22:
 440                                 if (atoi(buf) >= config.c_min_workers)
 441                                         config.c_max_workers = atoi(buf);
 442                         case 23:
 443                                 config.c_pop3_port = atoi(buf);
 444                                 break;
 445                         case 24:
 446                                 config.c_smtp_port = atoi(buf);
 447                                 break;
 448                         case 25:
 449                                 config.c_rfc822_strict_from = atoi(buf);
 450                                 break;
 451                         case 26:
 452                                 config.c_aide_zap = atoi(buf);
 453                                 if (config.c_aide_zap != 0)
 454                                         config.c_aide_zap = 1;
 455                                 break;
 456                         case 27:
 457                                 config.c_imap_port = atoi(buf);
 458                                 break;
 459                         case 28:
 460                                 config.c_net_freq = atol(buf);
 461                                 break;
 462                         case 29:
 463                                 config.c_disable_newu = atoi(buf);
 464                                 if (config.c_disable_newu != 0)
 465                                         config.c_disable_newu = 1;
 466                                 break;
 467                         case 30:
 468                                 /* niu */
 469                                 break;
 470                         case 31:
 471                                 if ((config.c_purge_hour >= 0)
 472                                    && (config.c_purge_hour <= 23)) {
 473                                         config.c_purge_hour = atoi(buf);
 474                                 }
 475                                 break;
 476 #ifdef HAVE_LDAP
 477                         case 32:
 478                                 safestrncpy(config.c_ldap_host, buf,
 479                                             sizeof config.c_ldap_host);
 480                                 break;
 481                         case 33:
 482                                 config.c_ldap_port = atoi(buf);
 483                                 break;
 484                         case 34:
 485                                 safestrncpy(config.c_ldap_base_dn, buf,
 486                                             sizeof config.c_ldap_base_dn);
 487                                 break;
 488                         case 35:
 489                                 safestrncpy(config.c_ldap_bind_dn, buf,
 490                                             sizeof config.c_ldap_bind_dn);
 491                                 break;
 492                         case 36:
 493                                 safestrncpy(config.c_ldap_bind_pw, buf,
 494                                             sizeof config.c_ldap_bind_pw);
 495                                 break;
 496 #endif
 497                         case 37:
 498                                 safestrncpy(config.c_ip_addr, buf,
 499                                                 sizeof config.c_ip_addr);
 500                         case 38:
 501                                 config.c_msa_port = atoi(buf);
 502                                 break;
 503                         case 39:
 504                                 config.c_imaps_port = atoi(buf);
 505                                 break;
 506                         case 40:
 507                                 config.c_pop3s_port = atoi(buf);
 508                                 break;
 509                         case 41:
 510                                 config.c_smtps_port = atoi(buf);
 511                                 break;
 512                         case 42:
 513                                 config.c_enable_fulltext = atoi(buf);
 514                                 break;
 515                         case 43:
 516                                 config.c_auto_cull = atoi(buf);
 517                                 break;
 518                         case 44:
 519                                 config.c_instant_expunge = atoi(buf);
 520                                 break;
 521                         case 45:
 522                                 config.c_allow_spoofing = atoi(buf);
 523                                 break;
 524                         case 46:
 525                                 config.c_journal_email = atoi(buf);
 526                                 break;
 527                         case 47:
 528                                 config.c_journal_pubmsgs = atoi(buf);
 529                                 break;
 530                         case 48:
 531                                 safestrncpy(config.c_journal_dest, buf,
 532                                                 sizeof config.c_journal_dest);
 533                         case 49:
 534                                 safestrncpy(config.c_default_cal_zone, buf,
 535                                                 sizeof config.c_default_cal_zone);
 536                                 break;
 537                         case 50:
 538                                 config.c_pftcpdict_port = atoi(buf);
 539                                 break;
 540                         case 51:
 541                                 config.c_managesieve_port = atoi(buf);
 542                                 break;
 543                         case 52:
 544                                 config.c_auth_mode = atoi(buf);
 545                         case 53:
 546                                 safestrncpy(config.c_funambol_host, buf,
 547                                         sizeof config.c_funambol_host);
 548                                 break;
 549                         case 54:
 550                                 config.c_funambol_port = atoi(buf);
 551                                 break;
 552                         case 55:
 553                                 safestrncpy(config.c_funambol_source,
 554                                         buf,
 555                                         sizeof config.c_funambol_source);
 556                                 break;
 557                         case 56:
 558                                 safestrncpy(config.c_funambol_auth,
 559                                         buf,
 560                                         sizeof config.c_funambol_auth);
 561                                 break;
 562                         case 57:
 563                                 config.c_rbl_at_greeting = atoi(buf);
 564                                 break;
 565                         case 58:
 566                                 safestrncpy(config.c_master_user, buf, sizeof config.c_master_user);
 567                                 break;
 568                         case 59:
 569                                 safestrncpy(config.c_master_pass, buf, sizeof config.c_master_pass);
 570                                 break;
 571                         case 60:
 572                                 safestrncpy(config.c_pager_program,
 573                                         buf,
 574                                         sizeof config.c_pager_program);
 575                                 break;
 576                         case 61:
 577                                 config.c_imap_keep_from = atoi(buf);
 578                                 break;
 579                         case 62:
 580                                 config.c_xmpp_c2s_port = atoi(buf);
 581                                 break;
 582                         case 63:
 583                                 config.c_xmpp_s2s_port = atoi(buf);
 584                                 break;
 585                         case 64:
 586                                 config.c_pop3_fetch = atol(buf);
 587                                 break;
 588                         case 65:
 589                                 config.c_pop3_fastest = atol(buf);
 590                                 break;
 591                         }
 592                         ++a;
 593                 }
 594                 put_config();
 595                 snprintf(buf, sizeof buf,
 596                          "The global system configuration has been edited by %s.\n",
 597                          CC->curr_user);
 598                 aide_message(buf,"Citadel Configuration Manager Message");
 599
 600                 if (!IsEmptyStr(config.c_logpages))
 601                         create_room(config.c_logpages, 3, "", 0, 1, 1, VIEW_BBS);
 602
 603                 /* If full text indexing has been disabled, invalidate the
 604                  * index so it doesn't try to use it later.
 605                  */
 606                 if (config.c_enable_fulltext == 0) {
 607                         CitControl.fulltext_wordbreaker = 0;
 608                         put_control();
 609                 }
 610         }
 611
 612         else if (!strcasecmp(cmd, "GETSYS")) {
 613                 extract_token(confname, argbuf, 1, '|', sizeof confname);
 614                 confptr = CtdlGetSysConfig(confname);
 615                 if (confptr != NULL) {
 616                         cprintf("%d %s\n", LISTING_FOLLOWS, confname);
 617                         client_write(confptr, strlen(confptr));
 618                         if (confptr[strlen(confptr) - 1] != 10)
 619                                 client_write("\n", 1);
 620                         cprintf("000\n");
 621                         free(confptr);
 622                 } else {
 623                         cprintf("%d No such configuration.\n",
 624                                 ERROR + ILLEGAL_VALUE);
 625                 }
 626         }
 627
 628         else if (!strcasecmp(cmd, "PUTSYS")) {
 629                 extract_token(confname, argbuf, 1, '|', sizeof confname);
 630                 unbuffer_output();
 631                 cprintf("%d %s\n", SEND_LISTING, confname);
 632                 confptr = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
 633                 CtdlPutSysConfig(confname, confptr);
 634                 free(confptr);
 635         }
 636
 637         else {
 638                 cprintf("%d Illegal option(s) specified.\n",
 639                         ERROR + ILLEGAL_VALUE);
 640         }
 641 }