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