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                 if (control_fp != NULL) {
  48                         fchown(fileno(control_fp), config.c_bbsuid, -1);
  49                 }
  50         }
  51         if (control_fp == NULL) {
  52                 control_fp = fopen("citadel.control", "wb+");
  53                 if (control_fp != NULL) {
  54                         fchown(fileno(control_fp), config.c_bbsuid, -1);
  55                         memset(&CitControl, 0, sizeof(struct CitControl));
  56                         fwrite(&CitControl, sizeof(struct CitControl),
  57                                 1, control_fp);
  58                         rewind(control_fp);
  59                 }
  60         }
  61         if (control_fp == NULL) {
  62                 lprintf(1, "ERROR opening citadel.control: %s\n",
  63                         strerror(errno));
  64                 return;
  65         }
  66
  67         rewind(control_fp);
  68         fread(&CitControl, sizeof(struct CitControl), 1, control_fp);
  69         }
  70
  71 /*
  72  * put_control  -  write the control record to disk.
  73  */
  74 void put_control(void) {
  75
  76         if (control_fp != NULL) {
  77                 rewind(control_fp);
  78                 fwrite(&CitControl, sizeof(struct CitControl), 1, control_fp);
  79                 fflush(control_fp);
  80                 }
  81         }
  82
  83
  84 /*
  85  * get_new_message_number()  -  Obtain a new, unique ID to be used for a message.
  86  */
  87 long get_new_message_number(void) {
  88         begin_critical_section(S_CONTROL);
  89         get_control();
  90         ++CitControl.MMhighest;
  91         put_control();
  92         end_critical_section(S_CONTROL);
  93         return(CitControl.MMhighest);
  94         }
  95
  96
  97 /*
  98  * get_new_user_number()  -  Obtain a new, unique ID to be used for a user.
  99  */
 100 long get_new_user_number(void) {
 101         begin_critical_section(S_CONTROL);
 102         get_control();
 103         ++CitControl.MMnextuser;
 104         put_control();
 105         end_critical_section(S_CONTROL);
 106         return(CitControl.MMnextuser);
 107         }
 108
 109
 110
 111 /*
 112  * get_new_room_number()  -  Obtain a new, unique ID to be used for a room.
 113  */
 114 long get_new_room_number(void) {
 115         begin_critical_section(S_CONTROL);
 116         get_control();
 117         ++CitControl.MMnextroom;
 118         put_control();
 119         end_critical_section(S_CONTROL);
 120         return(CitControl.MMnextroom);
 121         }
 122
 123
 124
 125 /*
 126  * Get or set global configuration options
 127  */
 128 void cmd_conf(char *argbuf) {
 129         char cmd[SIZ];
 130         char buf[SIZ];
 131         int a;
 132         char *confptr;
 133         char confname[SIZ];
 134
 135         if (!(CC->logged_in)) {
 136                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 137                 return;
 138                 }
 139
 140         if (CC->usersupp.axlevel < 6) {
 141                 cprintf("%d Higher access required.\n",
 142                         ERROR+HIGHER_ACCESS_REQUIRED);
 143                 return;
 144                 }
 145
 146         extract(cmd, argbuf, 0);
 147         if (!strcasecmp(cmd, "GET")) {
 148                 cprintf("%d Configuration...\n", LISTING_FOLLOWS);
 149                 cprintf("%s\n", config.c_nodename);
 150                 cprintf("%s\n", config.c_fqdn);
 151                 cprintf("%s\n", config.c_humannode);
 152                 cprintf("%s\n", config.c_phonenum);
 153                 cprintf("%d\n", config.c_creataide);
 154                 cprintf("%d\n", config.c_sleeping);
 155                 cprintf("%d\n", config.c_initax);
 156                 cprintf("%d\n", config.c_regiscall);
 157                 cprintf("%d\n", config.c_twitdetect);
 158                 cprintf("%s\n", config.c_twitroom);
 159                 cprintf("%s\n", config.c_moreprompt);
 160                 cprintf("%d\n", config.c_restrict);
 161                 cprintf("%s\n", config.c_bbs_city);
 162                 cprintf("%s\n", config.c_sysadm);
 163                 cprintf("%d\n", config.c_maxsessions);
 164                 cprintf("%s\n", config.c_net_password);
 165                 cprintf("%d\n", config.c_userpurge);
 166                 cprintf("%d\n", config.c_roompurge);
 167                 cprintf("%s\n", config.c_logpages);
 168                 cprintf("%d\n", config.c_createax);
 169                 cprintf("%d\n", config.c_maxmsglen);
 170                 cprintf("%d\n", config.c_min_workers);
 171                 cprintf("%d\n", config.c_max_workers);
 172                 cprintf("%d\n", config.c_pop3_port);
 173                 cprintf("%d\n", config.c_smtp_port);
 174                 cprintf("%d\n", config.c_default_filter);
 175                 cprintf("%d\n", config.c_aide_zap);
 176                 cprintf("%d\n", config.c_imap_port);
 177                 cprintf("000\n");
 178                 }
 179
 180         else if (!strcasecmp(cmd, "SET")) {
 181                 cprintf("%d Send configuration...\n", SEND_LISTING);
 182                 a = 0;
 183                 while (client_gets(buf), strcmp(buf, "000")) {
 184                     switch(a) {
 185                         case 0: safestrncpy(config.c_nodename, buf,
 186                                         sizeof config.c_nodename);
 187                                 break;
 188                         case 1: safestrncpy(config.c_fqdn, buf,
 189                                         sizeof config.c_fqdn);
 190                                 break;
 191                         case 2: safestrncpy(config.c_humannode, buf,
 192                                         sizeof config.c_humannode);
 193                                 break;
 194                         case 3: safestrncpy(config.c_phonenum, buf,
 195                                         sizeof config.c_phonenum);
 196                                 break;
 197                         case 4: config.c_creataide = atoi(buf);
 198                                 break;
 199                         case 5: config.c_sleeping = atoi(buf);
 200                                 break;
 201                         case 6: config.c_initax = atoi(buf);
 202                                 if (config.c_initax < 1) config.c_initax = 1;
 203                                 if (config.c_initax > 6) config.c_initax = 6;
 204                                 break;
 205                         case 7: config.c_regiscall = atoi(buf);
 206                                 if (config.c_regiscall != 0)
 207                                         config.c_regiscall = 1;
 208                                 break;
 209                         case 8: config.c_twitdetect = atoi(buf);
 210                                 if (config.c_twitdetect != 0)
 211                                         config.c_twitdetect = 1;
 212                                 break;
 213                         case 9: safestrncpy(config.c_twitroom, buf,
 214                                         sizeof config.c_twitroom);
 215                                 break;
 216                         case 10: safestrncpy(config.c_moreprompt, buf,
 217                                         sizeof config.c_moreprompt);
 218                                 break;
 219                         case 11: config.c_restrict = atoi(buf);
 220                                 if (config.c_restrict != 0)
 221                                         config.c_restrict = 1;
 222                                 break;
 223                         case 12: safestrncpy(config.c_bbs_city, buf,
 224                                         sizeof config.c_bbs_city);
 225                                 break;
 226                         case 13: safestrncpy(config.c_sysadm, buf,
 227                                         sizeof config.c_sysadm);
 228                                 break;
 229                         case 14: config.c_maxsessions = atoi(buf);
 230                                 if (config.c_maxsessions < 1)
 231                                         config.c_maxsessions = 1;
 232                                 break;
 233                         case 15: safestrncpy(config.c_net_password, buf,
 234                                         sizeof config.c_net_password);
 235                                 break;
 236                         case 16: config.c_userpurge = atoi(buf);
 237                                 break;
 238                         case 17: config.c_roompurge = atoi(buf);
 239                                 break;
 240                         case 18: safestrncpy(config.c_logpages, buf,
 241                                         sizeof config.c_logpages);
 242                                 break;
 243                         case 19: config.c_createax = atoi(buf);
 244                                 if (config.c_createax < 1)
 245                                         config.c_createax = 1;
 246                                 if (config.c_createax > 6)
 247                                         config.c_createax = 6;
 248                                 break;
 249                         case 20: if (atoi(buf) >= 8192)
 250                                         config.c_maxmsglen = atoi(buf);
 251                                 break;
 252                         case 21: if (atoi(buf) >= 2)
 253                                         config.c_min_workers = atoi(buf);
 254                         case 22: if (atoi(buf) >= config.c_min_workers)
 255                                         config.c_max_workers = atoi(buf);
 256                         case 23: config.c_pop3_port = atoi(buf);
 257                                 break;
 258                         case 24: config.c_smtp_port = atoi(buf);
 259                                 break;
 260                         case 25: config.c_default_filter = atoi(buf);
 261                                 break;
 262                         case 26: config.c_aide_zap = atoi(buf);
 263                                 if (config.c_aide_zap != 0)
 264                                         config.c_aide_zap = 1;
 265                                 break;
 266                         case 27: config.c_imap_port = atoi(buf);
 267                                 break;
 268                         }
 269                     ++a;
 270                     }
 271                 put_config();
 272                 snprintf(buf,sizeof buf,
 273                          "Global system configuration edited by %s\n",
 274                          CC->curr_user);
 275                 aide_message(buf);
 276
 277                 if (strlen(config.c_logpages) > 0)
 278                         create_room(config.c_logpages, 3, "", 0);
 279                 }
 280
 281         else if (!strcasecmp(cmd, "GETSYS")) {
 282                 extract(confname, argbuf, 1);
 283                 confptr = CtdlGetSysConfig(confname);
 284                 if (confptr != NULL) {
 285                         cprintf("%d %s\n", LISTING_FOLLOWS, confname);
 286                         client_write(confptr, strlen(confptr));
 287                         if (confptr[strlen(confptr)-1] != 10)
 288                                 client_write("\n", 1);
 289                         cprintf("000\n");
 290                         phree(confptr);
 291                 }
 292                 else {
 293                         cprintf("%d No such configuration.\n",
 294                                 ERROR+ILLEGAL_VALUE);
 295                 }
 296         }
 297
 298         else if (!strcasecmp(cmd, "PUTSYS")) {
 299                 extract(confname, argbuf, 1);
 300                 cprintf("%d %s\n", SEND_LISTING, confname);
 301                 confptr = CtdlReadMessageBody("000", config.c_maxmsglen, NULL);
 302                 CtdlPutSysConfig(confname, confptr);
 303                 phree(confptr);
 304         }
 305
 306         else {
 307                 cprintf("%d Illegal option(s) specified.\n",
 308                         ERROR+ILLEGAL_VALUE);
 309                 }
 310         }