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 #include <time.h>
  15 #include <ctype.h>
  16 #include <string.h>
  17 #include <errno.h>
  18 #include <limits.h>
  19 #include <syslog.h>
  20 #include <sys/types.h>
  21 #include "citadel.h"
  22 #include "server.h"
  23 #include "control.h"
  24 #include "sysdep_decls.h"
  25 #include "support.h"
  26 #include "config.h"
  27 #include "msgbase.h"
  28 #include "tools.h"
  29 #include "room_ops.h"
  30
  31 struct CitControl CitControl;
  32 struct config config;
  33 FILE *control_fp = NULL;
  34
  35 /*
  36  * get_control  -  read the control record into memory.
  37  */
  38 void get_control(void) {
  39
  40         /* Zero it out.  If the control record on disk is missing or short,
  41          * the system functions with all control record fields initialized
  42          * to zero.
  43          */
  44         memset(&CitControl, 0, sizeof(struct CitControl));
  45         if (control_fp == NULL) {
  46                 control_fp = fopen("citadel.control", "rb+");
  47                 fchown(fileno(control_fp), config.c_bbsuid, -1);
  48         }
  49         if (control_fp == NULL) {
  50                 control_fp = fopen("citadel.control", "wb+");
  51                 if (control_fp != NULL) {
  52                         fchown(fileno(control_fp), config.c_bbsuid, -1);
  53                         memset(&CitControl, 0, sizeof(struct CitControl));
  54                         fwrite(&CitControl, sizeof(struct CitControl),
  55                                 1, control_fp);
  56                         rewind(control_fp);
  57                 }
  58         }
  59         if (control_fp == NULL) {
  60                 lprintf(1, "ERROR opening citadel.control: %s\n",
  61                         strerror(errno));
  62                 return;
  63         }
  64
  65         rewind(control_fp);
  66         fread(&CitControl, sizeof(struct CitControl), 1, control_fp);
  67         }
  68
  69 /*
  70  * put_control  -  write the control record to disk.
  71  */
  72 void put_control(void) {
  73
  74         if (control_fp != NULL) {
  75                 rewind(control_fp);
  76                 fwrite(&CitControl, sizeof(struct CitControl), 1, control_fp);
  77                 fflush(control_fp);
  78                 }
  79         }
  80
  81
  82 /*
  83  * get_new_message_number()  -  Obtain a new, unique ID to be used for a message.
  84  */
  85 long get_new_message_number(void) {
  86         begin_critical_section(S_CONTROL);
  87         get_control();
  88         ++CitControl.MMhighest;
  89         put_control();
  90         end_critical_section(S_CONTROL);
  91         return(CitControl.MMhighest);
  92         }
  93
  94
  95 /*
  96  * get_new_user_number()  -  Obtain a new, unique ID to be used for a user.
  97  */
  98 long get_new_user_number(void) {
  99         begin_critical_section(S_CONTROL);
 100         get_control();
 101         ++CitControl.MMnextuser;
 102         put_control();
 103         end_critical_section(S_CONTROL);
 104         return(CitControl.MMnextuser);
 105         }
 106
 107
 108
 109 /*
 110  * get_new_room_number()  -  Obtain a new, unique ID to be used for a room.
 111  */
 112 long get_new_room_number(void) {
 113         begin_critical_section(S_CONTROL);
 114         get_control();
 115         ++CitControl.MMnextroom;
 116         put_control();
 117         end_critical_section(S_CONTROL);
 118         return(CitControl.MMnextroom);
 119         }
 120
 121
 122
 123 /*
 124  * Get or set global configuration options
 125  */
 126 void cmd_conf(char *argbuf) {
 127         char cmd[256];
 128         char buf[256];
 129         int a;
 130         char *confptr;
 131         char confname[256];
 132
 133         if (!(CC->logged_in)) {
 134                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 135                 return;
 136                 }
 137
 138         if (CC->usersupp.axlevel < 6) {
 139                 cprintf("%d Higher access required.\n",
 140                         ERROR+HIGHER_ACCESS_REQUIRED);
 141                 return;
 142                 }
 143
 144         extract(cmd, argbuf, 0);
 145         if (!strcasecmp(cmd, "GET")) {
 146                 cprintf("%d Configuration...\n", LISTING_FOLLOWS);
 147                 cprintf("%s\n", config.c_nodename);
 148                 cprintf("%s\n", config.c_fqdn);
 149                 cprintf("%s\n", config.c_humannode);
 150                 cprintf("%s\n", config.c_phonenum);
 151                 cprintf("%d\n", config.c_creataide);
 152                 cprintf("%d\n", config.c_sleeping);
 153                 cprintf("%d\n", config.c_initax);
 154                 cprintf("%d\n", config.c_regiscall);
 155                 cprintf("%d\n", config.c_twitdetect);
 156                 cprintf("%s\n", config.c_twitroom);
 157                 cprintf("%s\n", config.c_moreprompt);
 158                 cprintf("%d\n", config.c_restrict);
 159                 cprintf("%s\n", config.c_bbs_city);
 160                 cprintf("%s\n", config.c_sysadm);
 161                 cprintf("%d\n", config.c_maxsessions);
 162                 cprintf("%s\n", config.c_net_password);
 163                 cprintf("%d\n", config.c_userpurge);
 164                 cprintf("%d\n", config.c_roompurge);
 165                 cprintf("%s\n", config.c_logpages);
 166                 cprintf("%d\n", config.c_createax);
 167                 cprintf("%d\n", config.c_maxmsglen);
 168                 cprintf("%d\n", config.c_min_workers);
 169                 cprintf("%d\n", config.c_max_workers);
 170                 cprintf("%d\n", config.c_pop3_port);
 171                 cprintf("%d\n", config.c_smtp_port);
 172                 cprintf("%d\n", config.c_default_filter);
 173                 cprintf("000\n");
 174                 }
 175
 176         else if (!strcasecmp(cmd, "SET")) {
 177                 cprintf("%d Send configuration...\n", SEND_LISTING);
 178                 a = 0;
 179                 while (client_gets(buf), strcmp(buf, "000")) {
 180                     switch(a) {
 181                         case 0: safestrncpy(config.c_nodename, buf,
 182                                         sizeof config.c_nodename);
 183                                 break;
 184                         case 1: safestrncpy(config.c_fqdn, buf,
 185                                         sizeof config.c_fqdn);
 186                                 break;
 187                         case 2: safestrncpy(config.c_humannode, buf,
 188                                         sizeof config.c_humannode);
 189                                 break;
 190                         case 3: safestrncpy(config.c_phonenum, buf,
 191                                         sizeof config.c_phonenum);
 192                                 break;
 193                         case 4: config.c_creataide = atoi(buf);
 194                                 break;
 195                         case 5: config.c_sleeping = atoi(buf);
 196                                 break;
 197                         case 6: config.c_initax = atoi(buf);
 198                                 if (config.c_initax < 1) config.c_initax = 1;
 199                                 if (config.c_initax > 6) config.c_initax = 6;
 200                                 break;
 201                         case 7: config.c_regiscall = atoi(buf);
 202                                 if (config.c_regiscall != 0)
 203                                         config.c_regiscall = 1;
 204                                 break;
 205                         case 8: config.c_twitdetect = atoi(buf);
 206                                 if (config.c_twitdetect != 0)
 207                                         config.c_twitdetect = 1;
 208                                 break;
 209                         case 9: safestrncpy(config.c_twitroom, buf,
 210                                         sizeof config.c_twitroom);
 211                                 break;
 212                         case 10: safestrncpy(config.c_moreprompt, buf,
 213                                         sizeof config.c_moreprompt);
 214                                 break;
 215                         case 11: config.c_restrict = atoi(buf);
 216                                 if (config.c_restrict != 0)
 217                                         config.c_restrict = 1;
 218                                 break;
 219                         case 12: safestrncpy(config.c_bbs_city, buf,
 220                                         sizeof config.c_bbs_city);
 221                                 break;
 222                         case 13: safestrncpy(config.c_sysadm, buf,
 223                                         sizeof config.c_sysadm);
 224                                 break;
 225                         case 14: config.c_maxsessions = atoi(buf);
 226                                 if (config.c_maxsessions < 1)
 227                                         config.c_maxsessions = 1;
 228                                 break;
 229                         case 15: safestrncpy(config.c_net_password, buf,
 230                                         sizeof config.c_net_password);
 231                                 break;
 232                         case 16: config.c_userpurge = atoi(buf);
 233                                 break;
 234                         case 17: config.c_roompurge = atoi(buf);
 235                                 break;
 236                         case 18: safestrncpy(config.c_logpages, buf,
 237                                         sizeof config.c_logpages);
 238                                 break;
 239                         case 19: config.c_createax = atoi(buf);
 240                                 if (config.c_createax < 1)
 241                                         config.c_createax = 1;
 242                                 if (config.c_createax > 6)
 243                                         config.c_createax = 6;
 244                                 break;
 245                         case 20: if (atoi(buf) >= 8192)
 246                                         config.c_maxmsglen = atoi(buf);
 247                                 break;
 248                         case 21: if (atoi(buf) >= 2)
 249                                         config.c_min_workers = atoi(buf);
 250                         case 22: if (atoi(buf) >= config.c_min_workers)
 251                                         config.c_max_workers = atoi(buf);
 252                         case 23: config.c_pop3_port = atoi(buf);
 253                                 break;
 254                         case 24: config.c_smtp_port = atoi(buf);
 255                                 break;
 256                         case 25: config.c_default_filter = atoi(buf);
 257                                 break;
 258                         }
 259                     ++a;
 260                     }
 261                 put_config();
 262                 snprintf(buf,sizeof buf,
 263                          "Global system configuration edited by %s\n",
 264                          CC->curr_user);
 265                 aide_message(buf);
 266
 267                 if (strlen(config.c_logpages) > 0)
 268                         create_room(config.c_logpages, 3, "", 0);
 269                 }
 270
 271         else if (!strcasecmp(cmd, "GETSYS")) {
 272                 extract(confname, argbuf, 1);
 273                 confptr = CtdlGetSysConfig(confname);
 274                 if (confptr != NULL) {
 275                         cprintf("%d %s\n", LISTING_FOLLOWS, confname);
 276                         client_write(confptr, strlen(confptr));
 277                         if (confptr[strlen(confptr)-1] != 10)
 278                                 client_write("\n", 1);
 279                         cprintf("000\n");
 280                         phree(confptr);
 281                 }
 282                 else {
 283                         cprintf("%d No such configuration.\n",
 284                                 ERROR+ILLEGAL_VALUE);
 285                 }
 286         }
 287
 288         else if (!strcasecmp(cmd, "PUTSYS")) {
 289                 extract(confname, argbuf, 1);
 290                 cprintf("%d %s\n", SEND_LISTING, confname);
 291                 confptr = CtdlReadMessageBody("000", config.c_maxmsglen, NULL);
 292                 CtdlPutSysConfig(confname, confptr);
 293                 phree(confptr);
 294         }
 295
 296         else {
 297                 cprintf("%d Illegal option(s) specified.\n",
 298                         ERROR+ILLEGAL_VALUE);
 299                 }
 300         }