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