mdw@git.distorted.org.uk Git - disorder/blob - lib/configuration.h

   1 /*
   2  * This file is part of DisOrder.
   3  * Copyright (C) 2004-2008 Richard Kettlewell
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18  * USA
  19  */
  20 /** @file lib/configuration.h
  21  * @brief Configuration file support
  22  */
  23
  24 #ifndef CONFIGURATION_H
  25 #define CONFIGURATION_H
  26
  27 #include "speaker-protocol.h"
  28 #include "rights.h"
  29
  30 struct real_pcre;
  31
  32 /* Configuration is kept in a @struct config@; the live configuration
  33  * is always pointed to by @config@.  Values in @config@ are UTF-8 encoded.
  34  */
  35
  36 /** @brief A list of strings */
  37 struct stringlist {
  38   /** @brief Number of strings */
  39   int n;
  40   /** @brief Array of strings */
  41   char **s;
  42 };
  43
  44 /** @brief A list of list of strings */
  45 struct stringlistlist {
  46   /** @brief Number of string lists */
  47   int n;
  48   /** @brief Array of string lists */
  49   struct stringlist *s;
  50 };
  51
  52 /** @brief A collection of tracks */
  53 struct collection {
  54   /** @brief Module that supports this collection */
  55   char *module;
  56   /** @brief Filename encoding */
  57   char *encoding;
  58   /** @brief Root directory */
  59   char *root;
  60 };
  61
  62 /** @brief A list of collections */
  63 struct collectionlist {
  64   /** @brief Number of collections */
  65   int n;
  66   /** @brief Array of collections */
  67   struct collection *s;
  68 };
  69
  70 struct namepart {
  71   char *part;                           /* part */
  72   struct real_pcre *re;                 /* regexp */
  73   char *replace;                        /* replacement string */
  74   char *context;                        /* context glob */
  75   unsigned reflags;                     /* regexp flags */
  76 };
  77
  78 struct namepartlist {
  79   int n;
  80   struct namepart *s;
  81 };
  82
  83 struct transform {
  84   char *type;                           /* track or dir */
  85   char *context;                        /* sort or choose */
  86   char *replace;                        /* substitution string */
  87   struct real_pcre *re;                 /* compiled re */
  88   unsigned flags;                       /* regexp flags */
  89 };
  90
  91 struct transformlist {
  92   int n;
  93   struct transform *t;
  94 };
  95
  96 /** @brief System configuration */
  97 struct config {
  98   /* server config */
  99
 100   /** @brief Authorization algorithm */
 101   char *authorization_algorithm;
 102
 103   /** @brief All players */
 104   struct stringlistlist player;
 105
 106   /** @brief All tracklength plugins */
 107   struct stringlistlist tracklength;
 108
 109   /** @brief Allowed users */
 110   struct stringlistlist allow;
 111
 112   /** @brief Scratch tracks */
 113   struct stringlist scratch;
 114
 115   /** @brief Gap between tracks in seconds */
 116   long gap;
 117
 118   /** @brief Maximum number of recent tracks to record in history */
 119   long history;
 120
 121   /** @brief Expiry limit for noticed.db */
 122   long noticed_history;
 123
 124   /** @brief Trusted users */
 125   struct stringlist trust;
 126
 127   /** @brief User for server to run as */
 128   const char *user;
 129
 130   /** @brief Nice value for rescan subprocess */
 131   long nice_rescan;
 132
 133   /** @brief Paths to search for plugins */
 134   struct stringlist plugins;
 135
 136   /** @brief List of stopwords */
 137   struct stringlist stopword;
 138
 139   /** @brief List of collections */
 140   struct collectionlist collection;
 141
 142   /** @brief Database checkpoint byte limit */
 143   long checkpoint_kbyte;
 144
 145   /** @brief Databsase checkpoint minimum */
 146   long checkpoint_min;
 147
 148   /** @brief Path to mixer device */
 149   char *mixer;
 150
 151   /** @brief Mixer channel to use */
 152   char *channel;
 153
 154   long prefsync;                        /* preflog sync interval */
 155
 156   /** @brief Secondary listen address */
 157   struct stringlist listen;
 158
 159   /** @brief Alias format string */
 160   const char *alias;
 161
 162   /** @brief Enable server locking */
 163   int lock;
 164
 165   /** @brief Nice value for server */
 166   long nice_server;
 167
 168   /** @brief Nice value for speaker */
 169   long nice_speaker;
 170
 171   /** @brief Command execute by speaker to play audio */
 172   const char *speaker_command;
 173
 174   /** @brief Target sample format */
 175   struct stream_header sample_format;
 176
 177   /** @brief Sox syntax generation */
 178   long sox_generation;
 179
 180   /** @brief API used to play sound
 181    *
 182    * Choices are @ref BACKEND_ALSA, @ref BACKEND_COMMAND or @ref
 183    * BACKEND_NETWORK.
 184    */
 185   int api;
 186
 187 /* These values had better be non-negative */
 188 #define BACKEND_ALSA 0                  /**< Use ALSA (Linux only) */
 189 #define BACKEND_COMMAND 1               /**< Execute a command */
 190 #define BACKEND_NETWORK 2               /**< Transmit RTP  */
 191 #define BACKEND_COREAUDIO 3             /**< Use Core Audio (Mac only) */
 192 #define BACKEND_OSS 4                   /**< Use OSS */
 193
 194 #if HAVE_ALSA_ASOUNDLIB_H
 195 # define DEFAULT_BACKEND BACKEND_ALSA
 196 #elif HAVE_SYS_SOUNDCARD_H || EMPEG_HOST
 197 # define DEFAULT_BACKEND BACKEND_OSS
 198 #elif HAVE_COREAUDIO_AUDIOHARDWARE_H
 199 # define DEFAULT_BACKEND BACKEND_COREAUDIO
 200 #else
 201 # error Cannot choose a default backend
 202 #endif
 203
 204   /** @brief Home directory for state files */
 205   const char *home;
 206
 207   /** @brief Login username */
 208   const char *username;
 209
 210   /** @brief Login password */
 211   const char *password;
 212
 213   /** @brief Address to connect to */
 214   struct stringlist connect;
 215
 216   /** @brief Directories to search for web templates */
 217   struct stringlist templates;
 218
 219   /** @brief Canonical URL of web interface */
 220   char *url;
 221
 222   /** @brief Short display limit */
 223   long short_display;
 224
 225   /** @brief Maximum refresh interval for web interface (seconds) */
 226   long refresh;
 227
 228   /** @brief Facilities restricted to trusted users
 229    *
 230    * A bitmap of @ref RESTRICT_SCRATCH, @ref RESTRICT_REMOVE and @ref
 231    * RESTRICT_MOVE.
 232    */
 233   unsigned restrictions;                /* restrictions */
 234 #define RESTRICT_SCRATCH 1              /**< Restrict scratching */
 235 #define RESTRICT_REMOVE 2               /**< Restrict removal */
 236 #define RESTRICT_MOVE 4                 /**< Restrict rearrangement */
 237
 238   /** @brief Target queue length */
 239   long queue_pad;
 240
 241   /** @brief Minimum time between a track being played again */
 242   long replay_min;
 243
 244   struct namepartlist namepart;         /* transformations */
 245
 246   /** @brief Termination signal for subprocesses */
 247   int signal;
 248
 249   /** @brief ALSA output device */
 250   const char *device;
 251   struct transformlist transform;       /* path name transformations */
 252
 253   /** @brief Address to send audio data to */
 254   struct stringlist broadcast;
 255
 256   /** @brief Source address for network audio transmission */
 257   struct stringlist broadcast_from;
 258
 259   /** @brief TTL for multicast packets */
 260   long multicast_ttl;
 261
 262   /** @brief Whether to loop back multicast packets */
 263   int multicast_loop;
 264
 265   /** @brief Login lifetime in seconds */
 266   long cookie_login_lifetime;
 267
 268   /** @brief Signing key lifetime in seconds */
 269   long cookie_key_lifetime;
 270
 271   /** @brief Default rights for a new user */
 272   char *default_rights;
 273
 274   /** @brief SMTP server for sending mail */
 275   char *smtp_server;
 276
 277   /** @brief Origin address for outbound mail */
 278   char *mail_sender;
 279
 280   /** @brief Maximum number of tracks in response to 'new' */
 281   long new_max;
 282
 283   /** @brief Minimum interval between password reminder emails */
 284   long reminder_interval;
 285
 286   /** @brief Whether to allow user management over TCP */
 287   int remote_userman;
 288
 289   /* derived values: */
 290   int nparts;                           /* number of distinct name parts */
 291   char **parts;                         /* name part list  */
 292
 293   /* undocumented, for testing only */
 294   long dbversion;
 295 };
 296
 297 extern struct config *config;
 298 /* the current configuration */
 299
 300 int config_read(int server);
 301 /* re-read config, return 0 on success or non-0 on error.
 302  * Only updates @config@ if the new configuration is valid. */
 303
 304 char *config_get_file(const char *name);
 305 /* get a filename within the home directory */
 306
 307 struct passwd;
 308
 309 char *config_userconf(const char *home, const struct passwd *pw);
 310 /* get the user's own private conffile, assuming their home dir is
 311  * @home@ if not null and using @pw@ otherwise */
 312
 313 char *config_usersysconf(const struct passwd *pw );
 314 /* get the user's conffile in /etc */
 315
 316 char *config_private(void);
 317 /* get the private config file */
 318
 319 extern char *configfile;
 320 extern int config_per_user;
 321
 322 #endif /* CONFIGURATION_H */
 323
 324 /*
 325 Local Variables:
 326 c-basic-offset:2
 327 comment-column:40
 328 End:
 329 */