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

   1
   2 /*
   3  * This file is part of DisOrder.
   4  * Copyright (C) 2004-2008 Richard Kettlewell
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 /** @file lib/configuration.h
  20  * @brief Configuration file support
  21  */
  22
  23 #ifndef CONFIGURATION_H
  24 #define CONFIGURATION_H
  25
  26 #include <pcre.h>
  27
  28 #include "speaker-protocol.h"
  29 #include "rights.h"
  30
  31 /* Configuration is kept in a @struct config@; the live configuration
  32  * is always pointed to by @config@.  Values in @config@ are UTF-8 encoded.
  33  */
  34
  35 /** @brief A list of strings */
  36 struct stringlist {
  37   /** @brief Number of strings */
  38   int n;
  39   /** @brief Array of strings */
  40   char **s;
  41 };
  42
  43 /** @brief A list of list of strings */
  44 struct stringlistlist {
  45   /** @brief Number of string lists */
  46   int n;
  47   /** @brief Array of string lists */
  48   struct stringlist *s;
  49 };
  50
  51 /** @brief A collection of tracks */
  52 struct collection {
  53   /** @brief Module that supports this collection */
  54   char *module;
  55   /** @brief Filename encoding */
  56   char *encoding;
  57   /** @brief Root directory */
  58   char *root;
  59 };
  60
  61 /** @brief A list of collections */
  62 struct collectionlist {
  63   /** @brief Number of collections */
  64   int n;
  65   /** @brief Array of collections */
  66   struct collection *s;
  67 };
  68
  69 struct namepart {
  70   char *part;                           /* part */
  71   pcre *re;                             /* regexp */
  72   char *replace;                        /* replacement string */
  73   char *context;                        /* context glob */
  74   unsigned reflags;                     /* regexp flags */
  75 };
  76
  77 struct namepartlist {
  78   int n;
  79   struct namepart *s;
  80 };
  81
  82 struct transform {
  83   char *type;                           /* track or dir */
  84   char *context;                        /* sort or choose */
  85   char *replace;                        /* substitution string */
  86   pcre *re;                             /* compiled re */
  87   unsigned flags;                       /* regexp flags */
  88 };
  89
  90 struct transformlist {
  91   int n;
  92   struct transform *t;
  93 };
  94
  95 /** @brief System configuration */
  96 struct config {
  97   /* server config */
  98
  99   /** @brief Authorization algorithm */
 100   char *authorization_algorithm;
 101
 102   /** @brief All players */
 103   struct stringlistlist player;
 104
 105   /** @brief All tracklength plugins */
 106   struct stringlistlist tracklength;
 107
 108   /** @brief Allowed users */
 109   struct stringlistlist allow;
 110
 111   /** @brief Scratch tracks */
 112   struct stringlist scratch;
 113
 114   /** @brief Gap between tracks in seconds */
 115   long gap;
 116
 117   /** @brief Maximum number of recent tracks to record in history */
 118   long history;
 119
 120   /** @brief Expiry limit for noticed.db */
 121   long noticed_history;
 122
 123   /** @brief Trusted users */
 124   struct stringlist trust;
 125
 126   /** @brief User for server to run as */
 127   const char *user;
 128
 129   /** @brief Nice value for rescan subprocess */
 130   long nice_rescan;
 131
 132   /** @brief Paths to search for plugins */
 133   struct stringlist plugins;
 134
 135   /** @brief List of stopwords */
 136   struct stringlist stopword;
 137
 138   /** @brief List of collections */
 139   struct collectionlist collection;
 140
 141   /** @brief Database checkpoint byte limit */
 142   long checkpoint_kbyte;
 143
 144   /** @brief Databsase checkpoint minimum */
 145   long checkpoint_min;
 146
 147   /** @brief Path to mixer device */
 148   char *mixer;
 149
 150   /** @brief Mixer channel to use */
 151   char *channel;
 152
 153   long prefsync;                        /* preflog sync interval */
 154
 155   /** @brief Secondary listen address */
 156   struct stringlist listen;
 157
 158   /** @brief Alias format string */
 159   const char *alias;
 160
 161   /** @brief Enable server locking */
 162   int lock;
 163
 164   /** @brief Nice value for server */
 165   long nice_server;
 166
 167   /** @brief Nice value for speaker */
 168   long nice_speaker;
 169
 170   /** @brief Command execute by speaker to play audio */
 171   const char *speaker_command;
 172
 173   /** @brief Target sample format */
 174   struct stream_header sample_format;
 175
 176   /** @brief Sox syntax generation */
 177   long sox_generation;
 178
 179   /** @brief API used to play sound
 180    *
 181    * Choices are @ref BACKEND_ALSA, @ref BACKEND_COMMAND or @ref
 182    * BACKEND_NETWORK.
 183    */
 184   int api;
 185
 186   /** @brief Maximum size of a playlist */
 187   long playlist_max;
 188
 189   /** @brief Maximum lifetime of a playlist lock */
 190   long playlist_lock_timeout;
 191
 192 /* These values had better be non-negative */
 193 #define BACKEND_ALSA 0                  /**< Use ALSA (Linux only) */
 194 #define BACKEND_COMMAND 1               /**< Execute a command */
 195 #define BACKEND_NETWORK 2               /**< Transmit RTP  */
 196 #define BACKEND_COREAUDIO 3             /**< Use Core Audio (Mac only) */
 197 #define BACKEND_OSS 4                   /**< Use OSS */
 198
 199 #if HAVE_ALSA_ASOUNDLIB_H
 200 # define DEFAULT_BACKEND BACKEND_ALSA
 201 #elif HAVE_SYS_SOUNDCARD_H || EMPEG_HOST
 202 # define DEFAULT_BACKEND BACKEND_OSS
 203 #elif HAVE_COREAUDIO_AUDIOHARDWARE_H
 204 # define DEFAULT_BACKEND BACKEND_COREAUDIO
 205 #else
 206 # error Cannot choose a default backend
 207 #endif
 208
 209   /** @brief Home directory for state files */
 210   const char *home;
 211
 212   /** @brief Login username */
 213   const char *username;
 214
 215   /** @brief Login password */
 216   const char *password;
 217
 218   /** @brief Address to connect to */
 219   struct stringlist connect;
 220
 221   /** @brief Directories to search for web templates */
 222   struct stringlist templates;
 223
 224   /** @brief Canonical URL of web interface */
 225   char *url;
 226
 227   /** @brief Short display limit */
 228   long short_display;
 229
 230   /** @brief Maximum refresh interval for web interface (seconds) */
 231   long refresh;
 232
 233   /** @brief Facilities restricted to trusted users
 234    *
 235    * A bitmap of @ref RESTRICT_SCRATCH, @ref RESTRICT_REMOVE and @ref
 236    * RESTRICT_MOVE.
 237    */
 238   unsigned restrictions;                /* restrictions */
 239 #define RESTRICT_SCRATCH 1              /**< Restrict scratching */
 240 #define RESTRICT_REMOVE 2               /**< Restrict removal */
 241 #define RESTRICT_MOVE 4                 /**< Restrict rearrangement */
 242
 243   /** @brief Target queue length */
 244   long queue_pad;
 245
 246   /** @brief Minimum time between a track being played again */
 247   long replay_min;
 248
 249   struct namepartlist namepart;         /* transformations */
 250
 251   /** @brief Termination signal for subprocesses */
 252   int signal;
 253
 254   /** @brief ALSA output device */
 255   const char *device;
 256   struct transformlist transform;       /* path name transformations */
 257
 258   /** @brief Address to send audio data to */
 259   struct stringlist broadcast;
 260
 261   /** @brief Source address for network audio transmission */
 262   struct stringlist broadcast_from;
 263
 264   /** @brief TTL for multicast packets */
 265   long multicast_ttl;
 266
 267   /** @brief Whether to loop back multicast packets */
 268   int multicast_loop;
 269
 270   /** @brief Login lifetime in seconds */
 271   long cookie_login_lifetime;
 272
 273   /** @brief Signing key lifetime in seconds */
 274   long cookie_key_lifetime;
 275
 276   /** @brief Default rights for a new user */
 277   char *default_rights;
 278
 279   /** @brief Path to sendmail executable */
 280   char *sendmail;
 281
 282   /** @brief SMTP server for sending mail */
 283   char *smtp_server;
 284
 285   /** @brief Origin address for outbound mail */
 286   char *mail_sender;
 287
 288   /** @brief Maximum number of tracks in response to 'new' */
 289   long new_max;
 290
 291   /** @brief Minimum interval between password reminder emails */
 292   long reminder_interval;
 293
 294   /** @brief Whether to allow user management over TCP */
 295   int remote_userman;
 296
 297   /** @brief Maximum age of biased-up tracks */
 298   long new_bias_age;
 299
 300   /** @brief Maximum bias */
 301   long new_bias;
 302
 303   /* derived values: */
 304   int nparts;                           /* number of distinct name parts */
 305   char **parts;                         /* name part list  */
 306
 307   /* undocumented, for testing only */
 308   long dbversion;
 309 };
 310
 311 extern struct config *config;
 312 /* the current configuration */
 313
 314 int config_read(int server);
 315 /* re-read config, return 0 on success or non-0 on error.
 316  * Only updates @config@ if the new configuration is valid. */
 317
 318 char *config_get_file2(struct config *c, const char *name);
 319 char *config_get_file(const char *name);
 320 /* get a filename within the home directory */
 321
 322 struct passwd;
 323
 324 char *config_userconf(const char *home, const struct passwd *pw);
 325 /* get the user's own private conffile, assuming their home dir is
 326  * @home@ if not null and using @pw@ otherwise */
 327
 328 char *config_usersysconf(const struct passwd *pw );
 329 /* get the user's conffile in /etc */
 330
 331 char *config_private(void);
 332 /* get the private config file */
 333
 334 extern char *configfile;
 335 extern int config_per_user;
 336
 337 #endif /* CONFIGURATION_H */
 338
 339 /*
 340 Local Variables:
 341 c-basic-offset:2
 342 comment-column:40
 343 End:
 344 */