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                 CtdlLogPrintf(CTDL_EMERG, "citserver: unable to lock %s.\n", file_citadel_control);
  70                 CtdlLogPrintf(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                 CtdlLogPrintf(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         chown(file_citadel_control, config.c_ctdluid, (-1));
 176 }
 177
 178 /*
 179  * put_control  -  write the control record to disk.
 180  */
 181 void put_control(void)
 182 {
 183
 184         if (control_fp != NULL) {
 185                 rewind(control_fp);
 186                 fwrite(&CitControl, sizeof(struct CitControl), 1,
 187                        control_fp);
 188                 fflush(control_fp);
 189         }
 190 }
 191
 192 /**
 193  * release_control - close our fd on exit
 194  */
 195 void release_control(void)
 196 {
 197         if (control_fp != NULL)
 198                 fclose(control_fp);
 199         control_fp = NULL;
 200 }
 201
 202 /*
 203  * get_new_message_number()  -  Obtain a new, unique ID to be used for a message.
 204  */
 205 long get_new_message_number(void)
 206 {
 207         long retval = 0L;
 208         begin_critical_section(S_CONTROL);
 209         get_control();
 210         retval = ++CitControl.MMhighest;
 211         put_control();
 212         end_critical_section(S_CONTROL);
 213         return(retval);
 214 }
 215
 216
 217 /*
 218  * CtdlGetCurrentMessageNumber()  -  Obtain the current highest message number in the system
 219  * This provides a quick way to initialise a variable that might be used to indicate
 220  * messages that should not be processed. EG. a new Sieve script will use this
 221  * to record determine that messages older than this should not be processed.
 222  */
 223 long CtdlGetCurrentMessageNumber(void)
 224 {
 225         long retval = 0L;
 226         begin_critical_section(S_CONTROL);
 227         get_control();
 228         retval = CitControl.MMhighest;
 229         end_critical_section(S_CONTROL);
 230         return(retval);
 231 }
 232
 233
 234 /*
 235  * get_new_user_number()  -  Obtain a new, unique ID to be used for a user.
 236  */
 237 long get_new_user_number(void)
 238 {
 239         long retval = 0L;
 240         begin_critical_section(S_CONTROL);
 241         get_control();
 242         retval = ++CitControl.MMnextuser;
 243         put_control();
 244         end_critical_section(S_CONTROL);
 245         return(retval);
 246 }
 247
 248
 249
 250 /*
 251  * get_new_room_number()  -  Obtain a new, unique ID to be used for a room.
 252  */
 253 long get_new_room_number(void)
 254 {
 255         long retval = 0L;
 256         begin_critical_section(S_CONTROL);
 257         get_control();
 258         retval = ++CitControl.MMnextroom;
 259         put_control();
 260         end_critical_section(S_CONTROL);
 261         return(retval);
 262 }
 263
 264
 265
 266 /*
 267  * Get or set global configuration options
 268  */
 269 void cmd_conf(char *argbuf)
 270 {
 271         char cmd[16];
 272         char buf[256];
 273         int a;
 274         char *confptr;
 275         char confname[128];
 276
 277         if (CtdlAccessCheck(ac_aide)) return;
 278
 279         extract_token(cmd, argbuf, 0, '|', sizeof cmd);
 280         if (!strcasecmp(cmd, "GET")) {
 281                 cprintf("%d Configuration...\n", LISTING_FOLLOWS);
 282                 cprintf("%s\n", config.c_nodename);
 283                 cprintf("%s\n", config.c_fqdn);
 284                 cprintf("%s\n", config.c_humannode);
 285                 cprintf("%s\n", config.c_phonenum);
 286                 cprintf("%d\n", config.c_creataide);
 287                 cprintf("%d\n", config.c_sleeping);
 288                 cprintf("%d\n", config.c_initax);
 289                 cprintf("%d\n", config.c_regiscall);
 290                 cprintf("%d\n", config.c_twitdetect);
 291                 cprintf("%s\n", config.c_twitroom);
 292                 cprintf("%s\n", config.c_moreprompt);
 293                 cprintf("%d\n", config.c_restrict);
 294                 cprintf("%s\n", config.c_site_location);
 295                 cprintf("%s\n", config.c_sysadm);
 296                 cprintf("%d\n", config.c_maxsessions);
 297                 cprintf("xxx\n"); /* placeholder -- field no longer in use */
 298                 cprintf("%d\n", config.c_userpurge);
 299                 cprintf("%d\n", config.c_roompurge);
 300                 cprintf("%s\n", config.c_logpages);
 301                 cprintf("%d\n", config.c_createax);
 302                 cprintf("%ld\n", config.c_maxmsglen);
 303                 cprintf("%d\n", config.c_min_workers);
 304                 cprintf("%d\n", config.c_max_workers);
 305                 cprintf("%d\n", config.c_pop3_port);
 306                 cprintf("%d\n", config.c_smtp_port);
 307                 cprintf("%d\n", config.c_rfc822_strict_from);
 308                 cprintf("%d\n", config.c_aide_zap);
 309                 cprintf("%d\n", config.c_imap_port);
 310                 cprintf("%ld\n", config.c_net_freq);
 311                 cprintf("%d\n", config.c_disable_newu);
 312                 cprintf("1\n"); /* niu */
 313                 cprintf("%d\n", config.c_purge_hour);
 314 #ifdef HAVE_LDAP
 315                 cprintf("%s\n", config.c_ldap_host);
 316                 cprintf("%d\n", config.c_ldap_port);
 317                 cprintf("%s\n", config.c_ldap_base_dn);
 318                 cprintf("%s\n", config.c_ldap_bind_dn);
 319                 cprintf("%s\n", config.c_ldap_bind_pw);
 320 #else
 321                 cprintf("\n");
 322                 cprintf("0\n");
 323                 cprintf("\n");
 324                 cprintf("\n");
 325                 cprintf("\n");
 326 #endif
 327                 cprintf("%s\n", config.c_ip_addr);
 328                 cprintf("%d\n", config.c_msa_port);
 329                 cprintf("%d\n", config.c_imaps_port);
 330                 cprintf("%d\n", config.c_pop3s_port);
 331                 cprintf("%d\n", config.c_smtps_port);
 332                 cprintf("%d\n", config.c_enable_fulltext);
 333                 cprintf("%d\n", config.c_auto_cull);
 334                 cprintf("%d\n", config.c_instant_expunge);
 335                 cprintf("%d\n", config.c_allow_spoofing);
 336                 cprintf("%d\n", config.c_journal_email);
 337                 cprintf("%d\n", config.c_journal_pubmsgs);
 338                 cprintf("%s\n", config.c_journal_dest);
 339                 cprintf("%s\n", config.c_default_cal_zone);
 340                 cprintf("%d\n", config.c_pftcpdict_port);
 341                 cprintf("%d\n", config.c_managesieve_port);
 342                 cprintf("%d\n", config.c_auth_mode);
 343                 cprintf("%s\n", config.c_funambol_host);
 344                 cprintf("%d\n", config.c_funambol_port);
 345                 cprintf("%s\n", config.c_funambol_source);
 346                 cprintf("%s\n", config.c_funambol_auth);
 347                 cprintf("%d\n", config.c_rbl_at_greeting);
 348                 cprintf("%s\n", config.c_master_user);
 349                 cprintf("%s\n", config.c_master_pass);
 350                 cprintf("%s\n", config.c_pager_program);
 351                 cprintf("%d\n", config.c_imap_keep_from);
 352                 cprintf("%d\n", config.c_xmpp_c2s_port);
 353                 cprintf("%d\n", config.c_xmpp_s2s_port);
 354                 cprintf("%ld\n", config.c_pop3_fetch);
 355                 cprintf("%ld\n", config.c_pop3_fastest);
 356                 cprintf("000\n");
 357         }
 358
 359         else if (!strcasecmp(cmd, "SET")) {
 360                 unbuffer_output();
 361                 cprintf("%d Send configuration...\n", SEND_LISTING);
 362                 a = 0;
 363                 while (client_getln(buf, sizeof buf) >= 0 && strcmp(buf, "000")) {
 364                         switch (a) {
 365                         case 0:
 366                                 safestrncpy(config.c_nodename, buf,
 367                                             sizeof config.c_nodename);
 368                                 break;
 369                         case 1:
 370                                 safestrncpy(config.c_fqdn, buf,
 371                                             sizeof config.c_fqdn);
 372                                 break;
 373                         case 2:
 374                                 safestrncpy(config.c_humannode, buf,
 375                                             sizeof config.c_humannode);
 376                                 break;
 377                         case 3:
 378                                 safestrncpy(config.c_phonenum, buf,
 379                                             sizeof config.c_phonenum);
 380                                 break;
 381                         case 4:
 382                                 config.c_creataide = atoi(buf);
 383                                 break;
 384                         case 5:
 385                                 config.c_sleeping = atoi(buf);
 386                                 break;
 387                         case 6:
 388                                 config.c_initax = atoi(buf);
 389                                 if (config.c_initax < 1)
 390                                         config.c_initax = 1;
 391                                 if (config.c_initax > 6)
 392                                         config.c_initax = 6;
 393                                 break;
 394                         case 7:
 395                                 config.c_regiscall = atoi(buf);
 396                                 if (config.c_regiscall != 0)
 397                                         config.c_regiscall = 1;
 398                                 break;
 399                         case 8:
 400                                 config.c_twitdetect = atoi(buf);
 401                                 if (config.c_twitdetect != 0)
 402                                         config.c_twitdetect = 1;
 403                                 break;
 404                         case 9:
 405                                 safestrncpy(config.c_twitroom, buf,
 406                                             sizeof config.c_twitroom);
 407                                 break;
 408                         case 10:
 409                                 safestrncpy(config.c_moreprompt, buf,
 410                                             sizeof config.c_moreprompt);
 411                                 break;
 412                         case 11:
 413                                 config.c_restrict = atoi(buf);
 414                                 if (config.c_restrict != 0)
 415                                         config.c_restrict = 1;
 416                                 break;
 417                         case 12:
 418                                 safestrncpy(config.c_site_location, buf,
 419                                             sizeof config.c_site_location);
 420                                 break;
 421                         case 13:
 422                                 safestrncpy(config.c_sysadm, buf,
 423                                             sizeof config.c_sysadm);
 424                                 break;
 425                         case 14:
 426                                 config.c_maxsessions = atoi(buf);
 427                                 if (config.c_maxsessions < 0)
 428                                         config.c_maxsessions = 0;
 429                                 break;
 430                         case 15:
 431                                 /* placeholder -- field no longer in use */
 432                                 break;
 433                         case 16:
 434                                 config.c_userpurge = atoi(buf);
 435                                 break;
 436                         case 17:
 437                                 config.c_roompurge = atoi(buf);
 438                                 break;
 439                         case 18:
 440                                 safestrncpy(config.c_logpages, buf,
 441                                             sizeof config.c_logpages);
 442                                 break;
 443                         case 19:
 444                                 config.c_createax = atoi(buf);
 445                                 if (config.c_createax < 1)
 446                                         config.c_createax = 1;
 447                                 if (config.c_createax > 6)
 448                                         config.c_createax = 6;
 449                                 break;
 450                         case 20:
 451                                 if (atoi(buf) >= 8192)
 452                                         config.c_maxmsglen = atoi(buf);
 453                                 break;
 454                         case 21:
 455                                 if (atoi(buf) >= 2)
 456                                         config.c_min_workers = atoi(buf);
 457                         case 22:
 458                                 if (atoi(buf) >= config.c_min_workers)
 459                                         config.c_max_workers = atoi(buf);
 460                         case 23:
 461                                 config.c_pop3_port = atoi(buf);
 462                                 break;
 463                         case 24:
 464                                 config.c_smtp_port = atoi(buf);
 465                                 break;
 466                         case 25:
 467                                 config.c_rfc822_strict_from = atoi(buf);
 468                                 break;
 469                         case 26:
 470                                 config.c_aide_zap = atoi(buf);
 471                                 if (config.c_aide_zap != 0)
 472                                         config.c_aide_zap = 1;
 473                                 break;
 474                         case 27:
 475                                 config.c_imap_port = atoi(buf);
 476                                 break;
 477                         case 28:
 478                                 config.c_net_freq = atol(buf);
 479                                 break;
 480                         case 29:
 481                                 config.c_disable_newu = atoi(buf);
 482                                 if (config.c_disable_newu != 0)
 483                                         config.c_disable_newu = 1;
 484                                 break;
 485                         case 30:
 486                                 /* niu */
 487                                 break;
 488                         case 31:
 489                                 if ((config.c_purge_hour >= 0)
 490                                    && (config.c_purge_hour <= 23)) {
 491                                         config.c_purge_hour = atoi(buf);
 492                                 }
 493                                 break;
 494 #ifdef HAVE_LDAP
 495                         case 32:
 496                                 safestrncpy(config.c_ldap_host, buf,
 497                                             sizeof config.c_ldap_host);
 498                                 break;
 499                         case 33:
 500                                 config.c_ldap_port = atoi(buf);
 501                                 break;
 502                         case 34:
 503                                 safestrncpy(config.c_ldap_base_dn, buf,
 504                                             sizeof config.c_ldap_base_dn);
 505                                 break;
 506                         case 35:
 507                                 safestrncpy(config.c_ldap_bind_dn, buf,
 508                                             sizeof config.c_ldap_bind_dn);
 509                                 break;
 510                         case 36:
 511                                 safestrncpy(config.c_ldap_bind_pw, buf,
 512                                             sizeof config.c_ldap_bind_pw);
 513                                 break;
 514 #endif
 515                         case 37:
 516                                 safestrncpy(config.c_ip_addr, buf,
 517                                                 sizeof config.c_ip_addr);
 518                         case 38:
 519                                 config.c_msa_port = atoi(buf);
 520                                 break;
 521                         case 39:
 522                                 config.c_imaps_port = atoi(buf);
 523                                 break;
 524                         case 40:
 525                                 config.c_pop3s_port = atoi(buf);
 526                                 break;
 527                         case 41:
 528                                 config.c_smtps_port = atoi(buf);
 529                                 break;
 530                         case 42:
 531                                 config.c_enable_fulltext = atoi(buf);
 532                                 break;
 533                         case 43:
 534                                 config.c_auto_cull = atoi(buf);
 535                                 break;
 536                         case 44:
 537                                 config.c_instant_expunge = atoi(buf);
 538                                 break;
 539                         case 45:
 540                                 config.c_allow_spoofing = atoi(buf);
 541                                 break;
 542                         case 46:
 543                                 config.c_journal_email = atoi(buf);
 544                                 break;
 545                         case 47:
 546                                 config.c_journal_pubmsgs = atoi(buf);
 547                                 break;
 548                         case 48:
 549                                 safestrncpy(config.c_journal_dest, buf,
 550                                                 sizeof config.c_journal_dest);
 551                         case 49:
 552                                 safestrncpy(config.c_default_cal_zone, buf,
 553                                                 sizeof config.c_default_cal_zone);
 554                                 break;
 555                         case 50:
 556                                 config.c_pftcpdict_port = atoi(buf);
 557                                 break;
 558                         case 51:
 559                                 config.c_managesieve_port = atoi(buf);
 560                                 break;
 561                         case 52:
 562                                 config.c_auth_mode = atoi(buf);
 563                         case 53:
 564                                 safestrncpy(config.c_funambol_host, buf,
 565                                         sizeof config.c_funambol_host);
 566                                 break;
 567                         case 54:
 568                                 config.c_funambol_port = atoi(buf);
 569                                 break;
 570                         case 55:
 571                                 safestrncpy(config.c_funambol_source,
 572                                         buf,
 573                                         sizeof config.c_funambol_source);
 574                                 break;
 575                         case 56:
 576                                 safestrncpy(config.c_funambol_auth,
 577                                         buf,
 578                                         sizeof config.c_funambol_auth);
 579                                 break;
 580                         case 57:
 581                                 config.c_rbl_at_greeting = atoi(buf);
 582                                 break;
 583                         case 58:
 584                                 safestrncpy(config.c_master_user, buf, sizeof config.c_master_user);
 585                                 break;
 586                         case 59:
 587                                 safestrncpy(config.c_master_pass, buf, sizeof config.c_master_pass);
 588                                 break;
 589                         case 60:
 590                                 safestrncpy(config.c_pager_program,
 591                                         buf,
 592                                         sizeof config.c_pager_program);
 593                                 break;
 594                         case 61:
 595                                 config.c_imap_keep_from = atoi(buf);
 596                                 break;
 597                         case 62:
 598                                 config.c_xmpp_c2s_port = atoi(buf);
 599                                 break;
 600                         case 63:
 601                                 config.c_xmpp_s2s_port = atoi(buf);
 602                                 break;
 603                         case 64:
 604                                 config.c_pop3_fetch = atol(buf);
 605                                 break;
 606                         case 65:
 607                                 config.c_pop3_fastest = atol(buf);
 608                                 break;
 609                         }
 610                         ++a;
 611                 }
 612                 put_config();
 613                 snprintf(buf, sizeof buf,
 614                          "The global system configuration has been edited by %s.\n",
 615                          CC->curr_user);
 616                 aide_message(buf,"Citadel Configuration Manager Message");
 617
 618                 if (!IsEmptyStr(config.c_logpages))
 619                         create_room(config.c_logpages, 3, "", 0, 1, 1, VIEW_BBS);
 620
 621                 /* If full text indexing has been disabled, invalidate the
 622                  * index so it doesn't try to use it later.
 623                  */
 624                 if (config.c_enable_fulltext == 0) {
 625                         CitControl.fulltext_wordbreaker = 0;
 626                         put_control();
 627                 }
 628         }
 629
 630         else if (!strcasecmp(cmd, "GETSYS")) {
 631                 extract_token(confname, argbuf, 1, '|', sizeof confname);
 632                 confptr = CtdlGetSysConfig(confname);
 633                 if (confptr != NULL) {
 634                         cprintf("%d %s\n", LISTING_FOLLOWS, confname);
 635                         client_write(confptr, strlen(confptr));
 636                         if (confptr[strlen(confptr) - 1] != 10)
 637                                 client_write("\n", 1);
 638                         cprintf("000\n");
 639                         free(confptr);
 640                 } else {
 641                         cprintf("%d No such configuration.\n",
 642                                 ERROR + ILLEGAL_VALUE);
 643                 }
 644         }
 645
 646         else if (!strcasecmp(cmd, "PUTSYS")) {
 647                 extract_token(confname, argbuf, 1, '|', sizeof confname);
 648                 unbuffer_output();
 649                 cprintf("%d %s\n", SEND_LISTING, confname);
 650                 confptr = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
 651                 CtdlPutSysConfig(confname, confptr);
 652                 free(confptr);
 653         }
 654
 655         else {
 656                 cprintf("%d Illegal option(s) specified.\n",
 657                         ERROR + ILLEGAL_VALUE);
 658         }
 659 }