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("%d\n", config.c_pop3_port);
 169                 cprintf("%d\n", config.c_smtp_port);
 170                 cprintf("000\n");
 171                 }
 172
 173         else if (!strcasecmp(cmd, "SET")) {
 174                 cprintf("%d Send configuration...\n", SEND_LISTING);
 175                 a = 0;
 176                 while (client_gets(buf), strcmp(buf, "000")) {
 177                     switch(a) {
 178                         case 0: safestrncpy(config.c_nodename, buf,
 179                                         sizeof config.c_nodename);
 180                                 break;
 181                         case 1: safestrncpy(config.c_fqdn, buf,
 182                                         sizeof config.c_fqdn);
 183                                 break;
 184                         case 2: safestrncpy(config.c_humannode, buf,
 185                                         sizeof config.c_humannode);
 186                                 break;
 187                         case 3: safestrncpy(config.c_phonenum, buf,
 188                                         sizeof config.c_phonenum);
 189                                 break;
 190                         case 4: config.c_creataide = atoi(buf);
 191                                 break;
 192                         case 5: config.c_sleeping = atoi(buf);
 193                                 break;
 194                         case 6: config.c_initax = atoi(buf);
 195                                 if (config.c_initax < 1) config.c_initax = 1;
 196                                 if (config.c_initax > 6) config.c_initax = 6;
 197                                 break;
 198                         case 7: config.c_regiscall = atoi(buf);
 199                                 if (config.c_regiscall != 0)
 200                                         config.c_regiscall = 1;
 201                                 break;
 202                         case 8: config.c_twitdetect = atoi(buf);
 203                                 if (config.c_twitdetect != 0)
 204                                         config.c_twitdetect = 1;
 205                                 break;
 206                         case 9: safestrncpy(config.c_twitroom, buf,
 207                                         sizeof config.c_twitroom);
 208                                 break;
 209                         case 10: safestrncpy(config.c_moreprompt, buf,
 210                                         sizeof config.c_moreprompt);
 211                                 break;
 212                         case 11: config.c_restrict = atoi(buf);
 213                                 if (config.c_restrict != 0)
 214                                         config.c_restrict = 1;
 215                                 break;
 216                         case 12: safestrncpy(config.c_bbs_city, buf,
 217                                         sizeof config.c_bbs_city);
 218                                 break;
 219                         case 13: safestrncpy(config.c_sysadm, buf,
 220                                         sizeof config.c_sysadm);
 221                                 break;
 222                         case 14: config.c_maxsessions = atoi(buf);
 223                                 if (config.c_maxsessions < 1)
 224                                         config.c_maxsessions = 1;
 225                                 break;
 226                         case 15: safestrncpy(config.c_net_password, buf,
 227                                         sizeof config.c_net_password);
 228                                 break;
 229                         case 16: config.c_userpurge = atoi(buf);
 230                                 break;
 231                         case 17: config.c_roompurge = atoi(buf);
 232                                 break;
 233                         case 18: safestrncpy(config.c_logpages, buf,
 234                                         sizeof config.c_logpages);
 235                                 break;
 236                         case 19: config.c_createax = atoi(buf);
 237                                 if (config.c_createax < 1)
 238                                         config.c_createax = 1;
 239                                 if (config.c_createax > 6)
 240                                         config.c_createax = 6;
 241                                 break;
 242                         case 20: if (atoi(buf) >= 8192)
 243                                         config.c_maxmsglen = atoi(buf);
 244                                 break;
 245                         case 21: if (atoi(buf) >= 2)
 246                                         config.c_min_workers = atoi(buf);
 247                         case 22: if (atoi(buf) >= config.c_min_workers)
 248                                         config.c_max_workers = atoi(buf);
 249                         case 23: config.c_pop3_port = atoi(buf);
 250                                 break;
 251                         case 24: config.c_smtp_port = atoi(buf);
 252                                 break;
 253                         }
 254                     ++a;
 255                     }
 256                 put_config();
 257                 snprintf(buf,sizeof buf,
 258                          "Global system configuration edited by %s\n",
 259                          CC->curr_user);
 260                 aide_message(buf);
 261
 262                 if (strlen(config.c_logpages) > 0)
 263                         create_room(config.c_logpages, 3, "", 0);
 264                 }
 265
 266         else if (!strcasecmp(cmd, "GETSYS")) {
 267                 extract(confname, argbuf, 1);
 268                 confptr = CtdlGetSysConfig(confname);
 269                 if (confptr != NULL) {
 270                         cprintf("%d %s\n", LISTING_FOLLOWS, confname);
 271                         client_write(confptr, strlen(confptr));
 272                         if (confptr[strlen(confptr)-1] != 10)
 273                                 client_write("\n", 1);
 274                         cprintf("000\n");
 275                         phree(confptr);
 276                 }
 277                 else {
 278                         cprintf("%d No such configuration.\n",
 279                                 ERROR+ILLEGAL_VALUE);
 280                 }
 281         }
 282
 283         else if (!strcasecmp(cmd, "PUTSYS")) {
 284                 extract(confname, argbuf, 1);
 285                 cprintf("%d %s\n", SEND_LISTING, confname);
 286                 confptr = CtdlReadMessageBody("000", config.c_maxmsglen, NULL);
 287                 CtdlPutSysConfig(confname, confptr);
 288                 phree(confptr);
 289         }
 290
 291         else {
 292                 cprintf("%d Illegal option(s) specified.\n",
 293                         ERROR+ILLEGAL_VALUE);
 294                 }
 295         }