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