citadel/control.c

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