citadel/control.c

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