| 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 2 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, but |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * 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, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| 19 | * USA |
| 20 | */ |
| 21 | /** @file lib/configuration.h |
| 22 | * @brief Configuration file support |
| 23 | */ |
| 24 | |
| 25 | #ifndef CONFIGURATION_H |
| 26 | #define CONFIGURATION_H |
| 27 | |
| 28 | #include <pcre.h> |
| 29 | |
| 30 | #include "speaker-protocol.h" |
| 31 | #include "rights.h" |
| 32 | |
| 33 | /* Configuration is kept in a @struct config@; the live configuration |
| 34 | * is always pointed to by @config@. Values in @config@ are UTF-8 encoded. |
| 35 | */ |
| 36 | |
| 37 | /** @brief A list of strings */ |
| 38 | struct stringlist { |
| 39 | /** @brief Number of strings */ |
| 40 | int n; |
| 41 | /** @brief Array of strings */ |
| 42 | char **s; |
| 43 | }; |
| 44 | |
| 45 | /** @brief A list of list of strings */ |
| 46 | struct stringlistlist { |
| 47 | /** @brief Number of string lists */ |
| 48 | int n; |
| 49 | /** @brief Array of string lists */ |
| 50 | struct stringlist *s; |
| 51 | }; |
| 52 | |
| 53 | /** @brief A collection of tracks */ |
| 54 | struct collection { |
| 55 | /** @brief Module that supports this collection */ |
| 56 | char *module; |
| 57 | /** @brief Filename encoding */ |
| 58 | char *encoding; |
| 59 | /** @brief Root directory */ |
| 60 | char *root; |
| 61 | }; |
| 62 | |
| 63 | /** @brief A list of collections */ |
| 64 | struct collectionlist { |
| 65 | /** @brief Number of collections */ |
| 66 | int n; |
| 67 | /** @brief Array of collections */ |
| 68 | struct collection *s; |
| 69 | }; |
| 70 | |
| 71 | struct namepart { |
| 72 | char *part; /* part */ |
| 73 | pcre *re; /* regexp */ |
| 74 | char *replace; /* replacement string */ |
| 75 | char *context; /* context glob */ |
| 76 | unsigned reflags; /* regexp flags */ |
| 77 | }; |
| 78 | |
| 79 | struct namepartlist { |
| 80 | int n; |
| 81 | struct namepart *s; |
| 82 | }; |
| 83 | |
| 84 | struct transform { |
| 85 | char *type; /* track or dir */ |
| 86 | char *context; /* sort or choose */ |
| 87 | char *replace; /* substitution string */ |
| 88 | pcre *re; /* compiled re */ |
| 89 | unsigned flags; /* regexp flags */ |
| 90 | }; |
| 91 | |
| 92 | struct transformlist { |
| 93 | int n; |
| 94 | struct transform *t; |
| 95 | }; |
| 96 | |
| 97 | /** @brief System configuration */ |
| 98 | struct config { |
| 99 | /* server config */ |
| 100 | |
| 101 | /** @brief Authorization algorithm */ |
| 102 | char *authorization_algorithm; |
| 103 | |
| 104 | /** @brief All players */ |
| 105 | struct stringlistlist player; |
| 106 | |
| 107 | /** @brief All tracklength plugins */ |
| 108 | struct stringlistlist tracklength; |
| 109 | |
| 110 | /** @brief Allowed users */ |
| 111 | struct stringlistlist allow; |
| 112 | |
| 113 | /** @brief Scratch tracks */ |
| 114 | struct stringlist scratch; |
| 115 | |
| 116 | /** @brief Gap between tracks in seconds */ |
| 117 | long gap; |
| 118 | |
| 119 | /** @brief Maximum number of recent tracks to record in history */ |
| 120 | long history; |
| 121 | |
| 122 | /** @brief Expiry limit for noticed.db */ |
| 123 | long noticed_history; |
| 124 | |
| 125 | /** @brief Trusted users */ |
| 126 | struct stringlist trust; |
| 127 | |
| 128 | /** @brief User for server to run as */ |
| 129 | const char *user; |
| 130 | |
| 131 | /** @brief Nice value for rescan subprocess */ |
| 132 | long nice_rescan; |
| 133 | |
| 134 | /** @brief Paths to search for plugins */ |
| 135 | struct stringlist plugins; |
| 136 | |
| 137 | /** @brief List of stopwords */ |
| 138 | struct stringlist stopword; |
| 139 | |
| 140 | /** @brief List of collections */ |
| 141 | struct collectionlist collection; |
| 142 | |
| 143 | /** @brief Database checkpoint byte limit */ |
| 144 | long checkpoint_kbyte; |
| 145 | |
| 146 | /** @brief Databsase checkpoint minimum */ |
| 147 | long checkpoint_min; |
| 148 | |
| 149 | /** @brief Path to mixer device */ |
| 150 | char *mixer; |
| 151 | |
| 152 | /** @brief Mixer channel to use */ |
| 153 | char *channel; |
| 154 | |
| 155 | long prefsync; /* preflog sync interval */ |
| 156 | |
| 157 | /** @brief Secondary listen address */ |
| 158 | struct stringlist listen; |
| 159 | |
| 160 | /** @brief Alias format string */ |
| 161 | const char *alias; |
| 162 | |
| 163 | /** @brief Enable server locking */ |
| 164 | int lock; |
| 165 | |
| 166 | /** @brief Nice value for server */ |
| 167 | long nice_server; |
| 168 | |
| 169 | /** @brief Nice value for speaker */ |
| 170 | long nice_speaker; |
| 171 | |
| 172 | /** @brief Command execute by speaker to play audio */ |
| 173 | const char *speaker_command; |
| 174 | |
| 175 | /** @brief Target sample format */ |
| 176 | struct stream_header sample_format; |
| 177 | |
| 178 | /** @brief Sox syntax generation */ |
| 179 | long sox_generation; |
| 180 | |
| 181 | /** @brief API used to play sound |
| 182 | * |
| 183 | * Choices are @ref BACKEND_ALSA, @ref BACKEND_COMMAND or @ref |
| 184 | * BACKEND_NETWORK. |
| 185 | */ |
| 186 | int api; |
| 187 | |
| 188 | /* These values had better be non-negative */ |
| 189 | #define BACKEND_ALSA 0 /**< Use ALSA (Linux only) */ |
| 190 | #define BACKEND_COMMAND 1 /**< Execute a command */ |
| 191 | #define BACKEND_NETWORK 2 /**< Transmit RTP */ |
| 192 | #define BACKEND_COREAUDIO 3 /**< Use Core Audio (Mac only) */ |
| 193 | #define BACKEND_OSS 4 /**< Use OSS */ |
| 194 | |
| 195 | #if HAVE_ALSA_ASOUNDLIB_H |
| 196 | # define DEFAULT_BACKEND BACKEND_ALSA |
| 197 | #elif HAVE_SYS_SOUNDCARD_H || EMPEG_HOST |
| 198 | # define DEFAULT_BACKEND BACKEND_OSS |
| 199 | #elif HAVE_COREAUDIO_AUDIOHARDWARE_H |
| 200 | # define DEFAULT_BACKEND BACKEND_COREAUDIO |
| 201 | #else |
| 202 | # error Cannot choose a default backend |
| 203 | #endif |
| 204 | |
| 205 | /** @brief Home directory for state files */ |
| 206 | const char *home; |
| 207 | |
| 208 | /** @brief Login username */ |
| 209 | const char *username; |
| 210 | |
| 211 | /** @brief Login password */ |
| 212 | const char *password; |
| 213 | |
| 214 | /** @brief Address to connect to */ |
| 215 | struct stringlist connect; |
| 216 | |
| 217 | /** @brief Directories to search for web templates */ |
| 218 | struct stringlist templates; |
| 219 | |
| 220 | /** @brief Canonical URL of web interface */ |
| 221 | char *url; |
| 222 | |
| 223 | /** @brief Short display limit */ |
| 224 | long short_display; |
| 225 | |
| 226 | /** @brief Maximum refresh interval for web interface (seconds) */ |
| 227 | long refresh; |
| 228 | |
| 229 | /** @brief Facilities restricted to trusted users |
| 230 | * |
| 231 | * A bitmap of @ref RESTRICT_SCRATCH, @ref RESTRICT_REMOVE and @ref |
| 232 | * RESTRICT_MOVE. |
| 233 | */ |
| 234 | unsigned restrictions; /* restrictions */ |
| 235 | #define RESTRICT_SCRATCH 1 /**< Restrict scratching */ |
| 236 | #define RESTRICT_REMOVE 2 /**< Restrict removal */ |
| 237 | #define RESTRICT_MOVE 4 /**< Restrict rearrangement */ |
| 238 | |
| 239 | /** @brief Target queue length */ |
| 240 | long queue_pad; |
| 241 | |
| 242 | /** @brief Minimum time between a track being played again */ |
| 243 | long replay_min; |
| 244 | |
| 245 | struct namepartlist namepart; /* transformations */ |
| 246 | |
| 247 | /** @brief Termination signal for subprocesses */ |
| 248 | int signal; |
| 249 | |
| 250 | /** @brief ALSA output device */ |
| 251 | const char *device; |
| 252 | struct transformlist transform; /* path name transformations */ |
| 253 | |
| 254 | /** @brief Address to send audio data to */ |
| 255 | struct stringlist broadcast; |
| 256 | |
| 257 | /** @brief Source address for network audio transmission */ |
| 258 | struct stringlist broadcast_from; |
| 259 | |
| 260 | /** @brief TTL for multicast packets */ |
| 261 | long multicast_ttl; |
| 262 | |
| 263 | /** @brief Whether to loop back multicast packets */ |
| 264 | int multicast_loop; |
| 265 | |
| 266 | /** @brief Login lifetime in seconds */ |
| 267 | long cookie_login_lifetime; |
| 268 | |
| 269 | /** @brief Signing key lifetime in seconds */ |
| 270 | long cookie_key_lifetime; |
| 271 | |
| 272 | /** @brief Default rights for a new user */ |
| 273 | char *default_rights; |
| 274 | |
| 275 | /** @brief Path to sendmail executable */ |
| 276 | char *sendmail; |
| 277 | |
| 278 | /** @brief SMTP server for sending mail */ |
| 279 | char *smtp_server; |
| 280 | |
| 281 | /** @brief Origin address for outbound mail */ |
| 282 | char *mail_sender; |
| 283 | |
| 284 | /** @brief Maximum number of tracks in response to 'new' */ |
| 285 | long new_max; |
| 286 | |
| 287 | /** @brief Minimum interval between password reminder emails */ |
| 288 | long reminder_interval; |
| 289 | |
| 290 | /** @brief Whether to allow user management over TCP */ |
| 291 | int remote_userman; |
| 292 | |
| 293 | /** @brief Maximum age of biased-up tracks */ |
| 294 | long new_bias_age; |
| 295 | |
| 296 | /** @brief Maximum bias */ |
| 297 | long new_bias; |
| 298 | |
| 299 | /* derived values: */ |
| 300 | int nparts; /* number of distinct name parts */ |
| 301 | char **parts; /* name part list */ |
| 302 | |
| 303 | /* undocumented, for testing only */ |
| 304 | long dbversion; |
| 305 | }; |
| 306 | |
| 307 | extern struct config *config; |
| 308 | /* the current configuration */ |
| 309 | |
| 310 | int config_read(int server); |
| 311 | /* re-read config, return 0 on success or non-0 on error. |
| 312 | * Only updates @config@ if the new configuration is valid. */ |
| 313 | |
| 314 | char *config_get_file(const char *name); |
| 315 | /* get a filename within the home directory */ |
| 316 | |
| 317 | struct passwd; |
| 318 | |
| 319 | char *config_userconf(const char *home, const struct passwd *pw); |
| 320 | /* get the user's own private conffile, assuming their home dir is |
| 321 | * @home@ if not null and using @pw@ otherwise */ |
| 322 | |
| 323 | char *config_usersysconf(const struct passwd *pw ); |
| 324 | /* get the user's conffile in /etc */ |
| 325 | |
| 326 | char *config_private(void); |
| 327 | /* get the private config file */ |
| 328 | |
| 329 | extern char *configfile; |
| 330 | extern int config_per_user; |
| 331 | |
| 332 | #endif /* CONFIGURATION_H */ |
| 333 | |
| 334 | /* |
| 335 | Local Variables: |
| 336 | c-basic-offset:2 |
| 337 | comment-column:40 |
| 338 | End: |
| 339 | */ |