onak-conf.c

   1 /*
   2  * onak-conf.c - Routines related to runtime config.
   3  *
   4  * Copyright 2002,2012 Jonathan McDowell <noodles@earth.li>
   5  *
   6  * This program is free software: you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the Free
   8  * Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along with
  16  * this program; if not, write to the Free Software Foundation, Inc., 51
  17  * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #include "config.h"
  21
  22 #include <ctype.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "ll.h"
  28 #include "log.h"
  29 #include "onak-conf.h"
  30
  31 extern struct dbfuncs DBFUNCS;
  32
  33 /*
  34  *      config - Runtime configuration for onak.
  35  *
  36  *      This is the default config; normally overridden with values from the
  37  *      config file.
  38  */
  39 struct onak_config config = {
  40         128,                    /* maxkeys */
  41         NULL,                   /* thissite */
  42         NULL,                   /* adminemail */
  43         NULL,                   /* mta */
  44         NULL,                   /* syncsites */
  45         NULL,                   /* logfile */
  46
  47         false,                  /* use_keyd */
  48
  49         /*
  50          * Options for directory backends.
  51          */
  52         NULL,                   /* db_dir */
  53
  54         /*
  55          * Options for the Postgres backend.
  56          */
  57         NULL,                   /* pg_dbhost */
  58         NULL,                   /* pg_dbname */
  59         NULL,                   /* pg_dbuser */
  60         NULL,                   /* pg_dbpass */
  61
  62         /*
  63          * Options for dynamic backends.
  64          */
  65         NULL,                   /* db_backend */
  66         NULL,                   /* backends_dir */
  67
  68         &DBFUNCS,               /* Default dbfuncs struct */
  69
  70         true,                   /* Check packet sig hashes */
  71 };
  72
  73 bool parsebool(char *str, bool fallback)
  74 {
  75         if (!strcasecmp(str, "false") || !strcasecmp(str, "no") ||
  76                         !strcasecmp(str, "0")) {
  77                 return false;
  78         } else if (!strcasecmp(str, "true") || !strcasecmp(str, "yes") ||
  79                         !strcasecmp(str, "1")) {
  80                 return true;
  81         } else {
  82                 logthing(LOGTHING_CRITICAL,
  83                         "Couldn't parse %s as a boolean config variable, "
  84                         "returning fallback of '%s'.",
  85                         str,
  86                         fallback ? "true" : "false");
  87                 return fallback;
  88         }
  89 }
  90
  91 void readconfig(const char *configfile) {
  92         FILE *conffile;
  93         char  curline[1024];
  94         int   i;
  95
  96         curline[1023] = 0;
  97         if (configfile == NULL) {
  98                 conffile = fopen(CONFIGFILE, "r");
  99         } else {
 100                 conffile = fopen(configfile, "r");
 101         }
 102         if (conffile != NULL) {
 103                 fgets(curline, 1023, conffile);
 104
 105                 while (!feof(conffile)) {
 106                         for (i = strlen(curline) - 1;
 107                                         i >= 0 && isspace(curline[i]);
 108                                         i--) {
 109                                 curline[i] = 0;
 110                         }
 111
 112                 if (curline[0] == '#' || curline[0] == 0) {
 113                         /*
 114                          * Comment line, ignore.
 115                          */
 116                 } else if (!strncmp("db_dir ", curline, 7)) {
 117                         config.db_dir = strdup(&curline[7]);
 118                 } else if (!strncmp("debug ", curline, 6)) {
 119                         /*
 120                          * Not supported yet; ignore for compatibility with
 121                          * pksd.
 122                          */
 123                 } else if (!strncmp("default_language ", curline, 17)) {
 124                         /*
 125                          * Not supported yet; ignore for compatibility with
 126                          * pksd.
 127                          */
 128                 } else if (!strncmp("mail_delivery_client ", curline, 21)) {
 129                         config.mta = strdup(&curline[21]);
 130                 } else if (!strncmp("maintainer_email ", curline, 17)) {
 131                         config.adminemail = strdup(&curline[17]);
 132                 } else if (!strncmp("mail_intro_file ", curline, 16)) {
 133                         /*
 134                          * Not supported yet; ignore for compatibility with
 135                          * pksd.
 136                          */
 137                 } else if (!strncmp("help_dir ", curline, 9)) {
 138                         /*
 139                          * Not supported yet; ignore for compatibility with
 140                          * pksd.
 141                          */
 142                 } else if (!strncmp("max_last ", curline, 9)) {
 143                         /*
 144                          * Not supported yet; ignore for compatibility with
 145                          * pksd.
 146                          */
 147                 } else if (!strncmp("max_reply_keys ", curline, 15)) {
 148                         config.maxkeys = atoi(&curline[15]);
 149                 } else if (!strncmp("pg_dbhost ", curline, 10)) {
 150                         config.pg_dbhost = strdup(&curline[10]);
 151                 } else if (!strncmp("pg_dbname ", curline, 10)) {
 152                         config.pg_dbname = strdup(&curline[10]);
 153                 } else if (!strncmp("pg_dbuser ", curline, 10)) {
 154                         config.pg_dbuser = strdup(&curline[10]);
 155                 } else if (!strncmp("pg_dbpass ", curline, 10)) {
 156                         config.pg_dbpass = strdup(&curline[10]);
 157                 } else if (!strncmp("syncsite ", curline, 9)) {
 158                         config.syncsites =
 159                                 lladd(config.syncsites, strdup(&curline[9]));
 160                 } else if (!strncmp("logfile ", curline, 8)) {
 161                         config.logfile = strdup(&curline[8]);
 162                 } else if (!strncmp("loglevel ", curline, 9)) {
 163                         setlogthreshold(atoi(&curline[9]));
 164                 } else if (!strncmp("this_site ", curline, 10)) {
 165                         config.thissite = strdup(&curline[10]);
 166                 } else if (!strncmp("socket_name ", curline, 12) ||
 167                                 !strncmp("pks_bin_dir ", curline, 12) ||
 168                                 !strncmp("mail_dir ", curline, 9) ||
 169                                 !strncmp("www_port ", curline, 9)) {
 170                         /*
 171                          * Not applicable; ignored for compatibility with pksd.
 172                          */
 173                 } else if (!strncmp("db_backend ", curline, 11)) {
 174                         config.db_backend = strdup(&curline[11]);
 175                 } else if (!strncmp("backends_dir ", curline, 13)) {
 176                         config.backends_dir = strdup(&curline[13]);
 177                 } else if (!strncmp("use_keyd ", curline, 9)) {
 178                         config.use_keyd = parsebool(&curline[9],
 179                                                 config.use_keyd);
 180                 } else if (!strncmp("check_sighash ", curline, 9)) {
 181                         config.check_sighash = parsebool(&curline[9],
 182                                                 config.check_sighash);
 183                 } else {
 184                         logthing(LOGTHING_ERROR,
 185                                 "Unknown config line: %s", curline);
 186                 }
 187
 188                         fgets(curline, 1023, conffile);
 189                 }
 190                 fclose(conffile);
 191         } else {
 192                 logthing(LOGTHING_NOTICE,
 193                                 "Couldn't open config file; using defaults.");
 194         }
 195 }
 196
 197 void cleanupconfig(void) {
 198         if (config.thissite != NULL) {
 199                 free(config.thissite);
 200                 config.thissite = NULL;
 201         }
 202         if (config.adminemail != NULL) {
 203                 free(config.adminemail);
 204                 config.adminemail = NULL;
 205         }
 206         if (config.mta != NULL) {
 207                 free(config.mta);
 208                 config.mta = NULL;
 209         }
 210         if (config.db_dir != NULL) {
 211                 free(config.db_dir);
 212                 config.db_dir = NULL;
 213         }
 214         if (config.pg_dbhost != NULL) {
 215                 free(config.pg_dbhost);
 216                 config.pg_dbhost = NULL;
 217         }
 218         if (config.pg_dbname != NULL) {
 219                 free(config.pg_dbname);
 220                 config.pg_dbname = NULL;
 221         }
 222         if (config.pg_dbuser != NULL) {
 223                 free(config.pg_dbuser);
 224                 config.pg_dbuser = NULL;
 225         }
 226         if (config.pg_dbpass != NULL) {
 227                 free(config.pg_dbpass);
 228                 config.pg_dbpass = NULL;
 229         }
 230         if (config.syncsites != NULL) {
 231                 llfree(config.syncsites, free);
 232                 config.syncsites = NULL;
 233         }
 234         if (config.logfile != NULL) {
 235                 free(config.logfile);
 236                 config.logfile = NULL;
 237         }
 238         if (config.db_backend != NULL) {
 239                 free(config.db_backend);
 240                 config.db_backend = NULL;
 241         }
 242         if (config.backends_dir != NULL) {
 243                 free(config.backends_dir);
 244                 config.backends_dir = NULL;
 245         }
 246 }