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("%s\n", config.c_master_user);
 276                 cprintf("%s\n", config.c_master_pass);
 277                 cprintf("%s\n", config.c_pager_program);
 278                 cprintf("000\n");
 279         }
 280
 281         else if (!strcasecmp(cmd, "SET")) {
 282                 unbuffer_output();
 283                 cprintf("%d Send configuration...\n", SEND_LISTING);
 284                 a = 0;
 285                 while (client_getln(buf, sizeof buf), strcmp(buf, "000")) {
 286                         switch (a) {
 287                         case 0:
 288                                 safestrncpy(config.c_nodename, buf,
 289                                             sizeof config.c_nodename);
 290                                 break;
 291                         case 1:
 292                                 safestrncpy(config.c_fqdn, buf,
 293                                             sizeof config.c_fqdn);
 294                                 break;
 295                         case 2:
 296                                 safestrncpy(config.c_humannode, buf,
 297                                             sizeof config.c_humannode);
 298                                 break;
 299                         case 3:
 300                                 safestrncpy(config.c_phonenum, buf,
 301                                             sizeof config.c_phonenum);
 302                                 break;
 303                         case 4:
 304                                 config.c_creataide = atoi(buf);
 305                                 break;
 306                         case 5:
 307                                 config.c_sleeping = atoi(buf);
 308                                 break;
 309                         case 6:
 310                                 config.c_initax = atoi(buf);
 311                                 if (config.c_initax < 1)
 312                                         config.c_initax = 1;
 313                                 if (config.c_initax > 6)
 314                                         config.c_initax = 6;
 315                                 break;
 316                         case 7:
 317                                 config.c_regiscall = atoi(buf);
 318                                 if (config.c_regiscall != 0)
 319                                         config.c_regiscall = 1;
 320                                 break;
 321                         case 8:
 322                                 config.c_twitdetect = atoi(buf);
 323                                 if (config.c_twitdetect != 0)
 324                                         config.c_twitdetect = 1;
 325                                 break;
 326                         case 9:
 327                                 safestrncpy(config.c_twitroom, buf,
 328                                             sizeof config.c_twitroom);
 329                                 break;
 330                         case 10:
 331                                 safestrncpy(config.c_moreprompt, buf,
 332                                             sizeof config.c_moreprompt);
 333                                 break;
 334                         case 11:
 335                                 config.c_restrict = atoi(buf);
 336                                 if (config.c_restrict != 0)
 337                                         config.c_restrict = 1;
 338                                 break;
 339                         case 12:
 340                                 safestrncpy(config.c_site_location, buf,
 341                                             sizeof config.c_site_location);
 342                                 break;
 343                         case 13:
 344                                 safestrncpy(config.c_sysadm, buf,
 345                                             sizeof config.c_sysadm);
 346                                 break;
 347                         case 14:
 348                                 config.c_maxsessions = atoi(buf);
 349                                 if (config.c_maxsessions < 0)
 350                                         config.c_maxsessions = 0;
 351                                 break;
 352                         case 15:
 353                                 /* placeholder -- field no longer in use */
 354                                 break;
 355                         case 16:
 356                                 config.c_userpurge = atoi(buf);
 357                                 break;
 358                         case 17:
 359                                 config.c_roompurge = atoi(buf);
 360                                 break;
 361                         case 18:
 362                                 safestrncpy(config.c_logpages, buf,
 363                                             sizeof config.c_logpages);
 364                                 break;
 365                         case 19:
 366                                 config.c_createax = atoi(buf);
 367                                 if (config.c_createax < 1)
 368                                         config.c_createax = 1;
 369                                 if (config.c_createax > 6)
 370                                         config.c_createax = 6;
 371                                 break;
 372                         case 20:
 373                                 if (atoi(buf) >= 8192)
 374                                         config.c_maxmsglen = atoi(buf);
 375                                 break;
 376                         case 21:
 377                                 if (atoi(buf) >= 2)
 378                                         config.c_min_workers = atoi(buf);
 379                         case 22:
 380                                 if (atoi(buf) >= config.c_min_workers)
 381                                         config.c_max_workers = atoi(buf);
 382                         case 23:
 383                                 config.c_pop3_port = atoi(buf);
 384                                 break;
 385                         case 24:
 386                                 config.c_smtp_port = atoi(buf);
 387                                 break;
 388                         case 25:
 389                                 config.c_rfc822_strict_from = atoi(buf);
 390                                 break;
 391                         case 26:
 392                                 config.c_aide_zap = atoi(buf);
 393                                 if (config.c_aide_zap != 0)
 394                                         config.c_aide_zap = 1;
 395                                 break;
 396                         case 27:
 397                                 config.c_imap_port = atoi(buf);
 398                                 break;
 399                         case 28:
 400                                 config.c_net_freq = atol(buf);
 401                                 break;
 402                         case 29:
 403                                 config.c_disable_newu = atoi(buf);
 404                                 if (config.c_disable_newu != 0)
 405                                         config.c_disable_newu = 1;
 406                                 break;
 407                         case 30:
 408                                 /* niu */
 409                                 break;
 410                         case 31:
 411                                 if ((config.c_purge_hour >= 0)
 412                                    && (config.c_purge_hour <= 23)) {
 413                                         config.c_purge_hour = atoi(buf);
 414                                 }
 415                                 break;
 416 #ifdef HAVE_LDAP
 417                         case 32:
 418                                 safestrncpy(config.c_ldap_host, buf,
 419                                             sizeof config.c_ldap_host);
 420                                 break;
 421                         case 33:
 422                                 config.c_ldap_port = atoi(buf);
 423                                 break;
 424                         case 34:
 425                                 safestrncpy(config.c_ldap_base_dn, buf,
 426                                             sizeof config.c_ldap_base_dn);
 427                                 break;
 428                         case 35:
 429                                 safestrncpy(config.c_ldap_bind_dn, buf,
 430                                             sizeof config.c_ldap_bind_dn);
 431                                 break;
 432                         case 36:
 433                                 safestrncpy(config.c_ldap_bind_pw, buf,
 434                                             sizeof config.c_ldap_bind_pw);
 435                                 break;
 436 #endif
 437                         case 37:
 438                                 safestrncpy(config.c_ip_addr, buf,
 439                                                 sizeof config.c_ip_addr);
 440                         case 38:
 441                                 config.c_msa_port = atoi(buf);
 442                                 break;
 443                         case 39:
 444                                 config.c_imaps_port = atoi(buf);
 445                                 break;
 446                         case 40:
 447                                 config.c_pop3s_port = atoi(buf);
 448                                 break;
 449                         case 41:
 450                                 config.c_smtps_port = atoi(buf);
 451                                 break;
 452                         case 42:
 453                                 config.c_enable_fulltext = atoi(buf);
 454                                 break;
 455                         case 43:
 456                                 config.c_auto_cull = atoi(buf);
 457                                 break;
 458                         case 44:
 459                                 config.c_instant_expunge = atoi(buf);
 460                                 break;
 461                         case 45:
 462                                 config.c_allow_spoofing = atoi(buf);
 463                                 break;
 464                         case 46:
 465                                 config.c_journal_email = atoi(buf);
 466                                 break;
 467                         case 47:
 468                                 config.c_journal_pubmsgs = atoi(buf);
 469                                 break;
 470                         case 48:
 471                                 safestrncpy(config.c_journal_dest, buf,
 472                                                 sizeof config.c_journal_dest);
 473                         case 49:
 474                                 safestrncpy(config.c_default_cal_zone, buf,
 475                                                 sizeof config.c_default_cal_zone);
 476                                 break;
 477                         case 50:
 478                                 config.c_pftcpdict_port = atoi(buf);
 479                                 break;
 480                         case 51:
 481                                 config.c_managesieve_port = atoi(buf);
 482                                 break;
 483                         case 52:
 484                                 config.c_auth_mode = atoi(buf);
 485                         case 53:
 486                                 safestrncpy(config.c_funambol_host, buf,
 487                                         sizeof config.c_funambol_host);
 488                                 break;
 489                         case 54:
 490                                 config.c_funambol_port = atoi(buf);
 491                                 break;
 492                         case 55:
 493                                 safestrncpy(config.c_funambol_source,
 494                                         buf,
 495                                         sizeof config.c_funambol_source);
 496                                 break;
 497                         case 56:
 498                                 safestrncpy(config.c_funambol_auth,
 499                                         buf,
 500                                         sizeof config.c_funambol_auth);
 501                                 break;
 502                         case 57:
 503                                 config.c_rbl_at_greeting = atoi(buf);
 504                                 break;
 505                         case 58:
 506                                 safestrncpy(config.c_master_user, buf, sizeof config.c_master_user);
 507                                 break;
 508                         case 59:
 509                                 safestrncpy(config.c_master_pass, buf, sizeof config.c_master_pass);
 510                                 break;
 511                         case 60:
 512                                 safestrncpy(config.c_pager_program,
 513                                         buf,
 514                                         sizeof config.c_pager_program);
 515                                 break;
 516                         }
 517                         ++a;
 518                 }
 519                 put_config();
 520                 snprintf(buf, sizeof buf,
 521                          "The global system configuration has been edited by %s.\n",
 522                          CC->curr_user);
 523                 aide_message(buf,"Citadel Configuration Manager Message");
 524
 525                 if (!IsEmptyStr(config.c_logpages))
 526                         create_room(config.c_logpages, 3, "", 0, 1, 1, VIEW_BBS);
 527
 528                 /* If full text indexing has been disabled, invalidate the
 529                  * index so it doesn't try to use it later.
 530                  */
 531                 if (config.c_enable_fulltext == 0) {
 532                         CitControl.fulltext_wordbreaker = 0;
 533                         put_control();
 534                 }
 535         }
 536
 537         else if (!strcasecmp(cmd, "GETSYS")) {
 538                 extract_token(confname, argbuf, 1, '|', sizeof confname);
 539                 confptr = CtdlGetSysConfig(confname);
 540                 if (confptr != NULL) {
 541                         cprintf("%d %s\n", LISTING_FOLLOWS, confname);
 542                         client_write(confptr, strlen(confptr));
 543                         if (confptr[strlen(confptr) - 1] != 10)
 544                                 client_write("\n", 1);
 545                         cprintf("000\n");
 546                         free(confptr);
 547                 } else {
 548                         cprintf("%d No such configuration.\n",
 549                                 ERROR + ILLEGAL_VALUE);
 550                 }
 551         }
 552
 553         else if (!strcasecmp(cmd, "PUTSYS")) {
 554                 extract_token(confname, argbuf, 1, '|', sizeof confname);
 555                 unbuffer_output();
 556                 cprintf("%d %s\n", SEND_LISTING, confname);
 557                 confptr = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
 558                 CtdlPutSysConfig(confname, confptr);
 559                 free(confptr);
 560         }
 561
 562         else {
 563                 cprintf("%d Illegal option(s) specified.\n",
 564                         ERROR + ILLEGAL_VALUE);
 565         }
 566 }