citadel/control.c

   1 /*
   2  * $Id$
   3  *
   4  * This module handles states which are global to the entire server.
   5  *
   6  */
   7
   8 #ifdef DLL_EXPORT
   9 #define IN_LIBCIT
  10 #endif
  11
  12 #include "sysdep.h"
  13 #include <stdlib.h>
  14 #include <unistd.h>
  15 #include <stdio.h>
  16 #include <fcntl.h>
  17 #include <signal.h>
  18
  19 #if TIME_WITH_SYS_TIME
  20 # include <sys/time.h>
  21 # include <time.h>
  22 #else
  23 # if HAVE_SYS_TIME_H
  24 #  include <sys/time.h>
  25 # else
  26 #  include <time.h>
  27 # endif
  28 #endif
  29
  30 #include <ctype.h>
  31 #include <string.h>
  32 #include <errno.h>
  33 #include <limits.h>
  34 #include <syslog.h>
  35 #include <sys/types.h>
  36 #include "citadel.h"
  37 #include "server.h"
  38 #include "control.h"
  39 #include "dynloader.h"
  40 #include "sysdep_decls.h"
  41 #include "support.h"
  42 #include "config.h"
  43 #include "msgbase.h"
  44 #include "citserver.h"
  45 #include "tools.h"
  46 #include "room_ops.h"
  47
  48 #ifndef HAVE_SNPRINTF
  49 #include "snprintf.h"
  50 #endif
  51
  52 struct CitControl CitControl;
  53 extern struct config config;
  54 FILE *control_fp = NULL;
  55
  56 /*
  57  * get_control  -  read the control record into memory.
  58  */
  59 void get_control(void)
  60 {
  61
  62         /* Zero it out.  If the control record on disk is missing or short,
  63          * the system functions with all control record fields initialized
  64          * to zero.
  65          */
  66         memset(&CitControl, 0, sizeof(struct CitControl));
  67         if (control_fp == NULL) {
  68                 control_fp = fopen("citadel.control", "rb+");
  69                 if (control_fp != NULL) {
  70                         fchown(fileno(control_fp), config.c_bbsuid, -1);
  71                 }
  72         }
  73         if (control_fp == NULL) {
  74                 control_fp = fopen("citadel.control", "wb+");
  75                 if (control_fp != NULL) {
  76                         fchown(fileno(control_fp), config.c_bbsuid, -1);
  77                         memset(&CitControl, 0, sizeof(struct CitControl));
  78                         fwrite(&CitControl, sizeof(struct CitControl),
  79                                1, control_fp);
  80                         rewind(control_fp);
  81                 }
  82         }
  83         if (control_fp == NULL) {
  84                 lprintf(1, "ERROR opening citadel.control: %s\n",
  85                         strerror(errno));
  86                 return;
  87         }
  88
  89         rewind(control_fp);
  90         fread(&CitControl, sizeof(struct CitControl), 1, control_fp);
  91 }
  92
  93 /*
  94  * put_control  -  write the control record to disk.
  95  */
  96 void put_control(void)
  97 {
  98
  99         if (control_fp != NULL) {
 100                 rewind(control_fp);
 101                 fwrite(&CitControl, sizeof(struct CitControl), 1,
 102                        control_fp);
 103                 fflush(control_fp);
 104         }
 105 }
 106
 107
 108 /*
 109  * get_new_message_number()  -  Obtain a new, unique ID to be used for a message.
 110  */
 111 long get_new_message_number(void)
 112 {
 113         begin_critical_section(S_CONTROL);
 114         get_control();
 115         ++CitControl.MMhighest;
 116         put_control();
 117         end_critical_section(S_CONTROL);
 118         return (CitControl.MMhighest);
 119 }
 120
 121
 122 /*
 123  * get_new_user_number()  -  Obtain a new, unique ID to be used for a user.
 124  */
 125 long get_new_user_number(void)
 126 {
 127         begin_critical_section(S_CONTROL);
 128         get_control();
 129         ++CitControl.MMnextuser;
 130         put_control();
 131         end_critical_section(S_CONTROL);
 132         return (CitControl.MMnextuser);
 133 }
 134
 135
 136
 137 /*
 138  * get_new_room_number()  -  Obtain a new, unique ID to be used for a room.
 139  */
 140 long get_new_room_number(void)
 141 {
 142         begin_critical_section(S_CONTROL);
 143         get_control();
 144         ++CitControl.MMnextroom;
 145         put_control();
 146         end_critical_section(S_CONTROL);
 147         return (CitControl.MMnextroom);
 148 }
 149
 150
 151
 152 /*
 153  * Get or set global configuration options
 154  */
 155 void cmd_conf(char *argbuf)
 156 {
 157         char cmd[SIZ];
 158         char buf[SIZ];
 159         int a;
 160         char *confptr;
 161         char confname[SIZ];
 162
 163         if (CtdlAccessCheck(ac_aide)) return;
 164
 165         extract(cmd, argbuf, 0);
 166         if (!strcasecmp(cmd, "GET")) {
 167                 cprintf("%d Configuration...\n", LISTING_FOLLOWS);
 168                 cprintf("%s\n", config.c_nodename);
 169                 cprintf("%s\n", config.c_fqdn);
 170                 cprintf("%s\n", config.c_humannode);
 171                 cprintf("%s\n", config.c_phonenum);
 172                 cprintf("%d\n", config.c_creataide);
 173                 cprintf("%d\n", config.c_sleeping);
 174                 cprintf("%d\n", config.c_initax);
 175                 cprintf("%d\n", config.c_regiscall);
 176                 cprintf("%d\n", config.c_twitdetect);
 177                 cprintf("%s\n", config.c_twitroom);
 178                 cprintf("%s\n", config.c_moreprompt);
 179                 cprintf("%d\n", config.c_restrict);
 180                 cprintf("%s\n", config.c_bbs_city);
 181                 cprintf("%s\n", config.c_sysadm);
 182                 cprintf("%d\n", config.c_maxsessions);
 183                 cprintf("%s\n", config.c_net_password);
 184                 cprintf("%d\n", config.c_userpurge);
 185                 cprintf("%d\n", config.c_roompurge);
 186                 cprintf("%s\n", config.c_logpages);
 187                 cprintf("%d\n", config.c_createax);
 188                 cprintf("%ld\n", config.c_maxmsglen);
 189                 cprintf("%d\n", config.c_min_workers);
 190                 cprintf("%d\n", config.c_max_workers);
 191                 cprintf("%d\n", config.c_pop3_port);
 192                 cprintf("%d\n", config.c_smtp_port);
 193                 cprintf("0\n"); /* position 25 no longer exists */
 194                 cprintf("%d\n", config.c_aide_zap);
 195                 cprintf("%d\n", config.c_imap_port);
 196                 cprintf("%ld\n", config.c_net_freq);
 197                 cprintf("%d\n", config.c_disable_newu);
 198                 cprintf("%d\n", config.c_aide_mailboxes);
 199                 cprintf("000\n");
 200         }
 201
 202         else if (!strcasecmp(cmd, "SET")) {
 203                 cprintf("%d Send configuration...\n", SEND_LISTING);
 204                 a = 0;
 205                 while (client_gets(buf), strcmp(buf, "000")) {
 206                         switch (a) {
 207                         case 0:
 208                                 safestrncpy(config.c_nodename, buf,
 209                                             sizeof config.c_nodename);
 210                                 break;
 211                         case 1:
 212                                 safestrncpy(config.c_fqdn, buf,
 213                                             sizeof config.c_fqdn);
 214                                 break;
 215                         case 2:
 216                                 safestrncpy(config.c_humannode, buf,
 217                                             sizeof config.c_humannode);
 218                                 break;
 219                         case 3:
 220                                 safestrncpy(config.c_phonenum, buf,
 221                                             sizeof config.c_phonenum);
 222                                 break;
 223                         case 4:
 224                                 config.c_creataide = atoi(buf);
 225                                 break;
 226                         case 5:
 227                                 config.c_sleeping = atoi(buf);
 228                                 break;
 229                         case 6:
 230                                 config.c_initax = atoi(buf);
 231                                 if (config.c_initax < 1)
 232                                         config.c_initax = 1;
 233                                 if (config.c_initax > 6)
 234                                         config.c_initax = 6;
 235                                 break;
 236                         case 7:
 237                                 config.c_regiscall = atoi(buf);
 238                                 if (config.c_regiscall != 0)
 239                                         config.c_regiscall = 1;
 240                                 break;
 241                         case 8:
 242                                 config.c_twitdetect = atoi(buf);
 243                                 if (config.c_twitdetect != 0)
 244                                         config.c_twitdetect = 1;
 245                                 break;
 246                         case 9:
 247                                 safestrncpy(config.c_twitroom, buf,
 248                                             sizeof config.c_twitroom);
 249                                 break;
 250                         case 10:
 251                                 safestrncpy(config.c_moreprompt, buf,
 252                                             sizeof config.c_moreprompt);
 253                                 break;
 254                         case 11:
 255                                 config.c_restrict = atoi(buf);
 256                                 if (config.c_restrict != 0)
 257                                         config.c_restrict = 1;
 258                                 break;
 259                         case 12:
 260                                 safestrncpy(config.c_bbs_city, buf,
 261                                             sizeof config.c_bbs_city);
 262                                 break;
 263                         case 13:
 264                                 safestrncpy(config.c_sysadm, buf,
 265                                             sizeof config.c_sysadm);
 266                                 break;
 267                         case 14:
 268                                 config.c_maxsessions = atoi(buf);
 269                                 if (config.c_maxsessions < 1)
 270                                         config.c_maxsessions = 1;
 271                                 break;
 272                         case 15:
 273                                 safestrncpy(config.c_net_password, buf,
 274                                             sizeof config.c_net_password);
 275                                 break;
 276                         case 16:
 277                                 config.c_userpurge = atoi(buf);
 278                                 break;
 279                         case 17:
 280                                 config.c_roompurge = atoi(buf);
 281                                 break;
 282                         case 18:
 283                                 safestrncpy(config.c_logpages, buf,
 284                                             sizeof config.c_logpages);
 285                                 break;
 286                         case 19:
 287                                 config.c_createax = atoi(buf);
 288                                 if (config.c_createax < 1)
 289                                         config.c_createax = 1;
 290                                 if (config.c_createax > 6)
 291                                         config.c_createax = 6;
 292                                 break;
 293                         case 20:
 294                                 if (atoi(buf) >= 8192)
 295                                         config.c_maxmsglen = atoi(buf);
 296                                 break;
 297                         case 21:
 298                                 if (atoi(buf) >= 2)
 299                                         config.c_min_workers = atoi(buf);
 300                         case 22:
 301                                 if (atoi(buf) >= config.c_min_workers)
 302                                         config.c_max_workers = atoi(buf);
 303                         case 23:
 304                                 config.c_pop3_port = atoi(buf);
 305                                 break;
 306                         case 24:
 307                                 config.c_smtp_port = atoi(buf);
 308                                 break;
 309                                 /* case 25 no longer exists */
 310                         case 26:
 311                                 config.c_aide_zap = atoi(buf);
 312                                 if (config.c_aide_zap != 0)
 313                                         config.c_aide_zap = 1;
 314                                 break;
 315                         case 27:
 316                                 config.c_imap_port = atoi(buf);
 317                                 break;
 318                         case 28:
 319                                 config.c_net_freq = atol(buf);
 320                                 break;
 321                         case 29:
 322                                 config.c_disable_newu = atoi(buf);
 323                                 if (config.c_disable_newu != 0)
 324                                         config.c_disable_newu = 1;
 325                                 break;
 326                         case 30:
 327                                 config.c_aide_mailboxes = atoi(buf);
 328                                 if (config.c_aide_mailboxes != 0)
 329                                         config.c_aide_mailboxes = 1;
 330                                 break;
 331                         }
 332                         ++a;
 333                 }
 334                 put_config();
 335                 snprintf(buf, sizeof buf,
 336                          "Global system configuration edited by %s\n",
 337                          CC->curr_user);
 338                 aide_message(buf);
 339
 340                 if (strlen(config.c_logpages) > 0)
 341                         create_room(config.c_logpages, 3, "", 0, 1, 1);
 342         }
 343
 344         else if (!strcasecmp(cmd, "GETSYS")) {
 345                 extract(confname, argbuf, 1);
 346                 confptr = CtdlGetSysConfig(confname);
 347                 if (confptr != NULL) {
 348                         cprintf("%d %s\n", LISTING_FOLLOWS, confname);
 349                         client_write(confptr, strlen(confptr));
 350                         if (confptr[strlen(confptr) - 1] != 10)
 351                                 client_write("\n", 1);
 352                         cprintf("000\n");
 353                         phree(confptr);
 354                 } else {
 355                         cprintf("%d No such configuration.\n",
 356                                 ERROR + ILLEGAL_VALUE);
 357                 }
 358         }
 359
 360         else if (!strcasecmp(cmd, "PUTSYS")) {
 361                 extract(confname, argbuf, 1);
 362                 cprintf("%d %s\n", SEND_LISTING, confname);
 363                 confptr =
 364                     CtdlReadMessageBody("000", config.c_maxmsglen, NULL);
 365                 CtdlPutSysConfig(confname, confptr);
 366                 phree(confptr);
 367         }
 368
 369         else {
 370                 cprintf("%d Illegal option(s) specified.\n",
 371                         ERROR + ILLEGAL_VALUE);
 372         }
 373 }