0aee49bdf8
This updates the copyright header to all be the same, which is pretty much an update of where to mail request for a copy of the GPL and the years of the MPD project. This also puts all committers under 'The Music Player Project' umbrella. These entries should go individually in the AUTHORS file, for consistancy.
545 lines
13 KiB
C
545 lines
13 KiB
C
/*
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* Copyright (C) 2003-2009 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "conf.h"
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#include "utils.h"
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#include "buffer2array.h"
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#include "path.h"
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#include <glib.h>
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#include <assert.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#undef G_LOG_DOMAIN
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#define G_LOG_DOMAIN "config"
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#define MAX_STRING_SIZE MPD_PATH_MAX+80
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#define CONF_COMMENT '#'
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#define CONF_BLOCK_BEGIN "{"
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#define CONF_BLOCK_END "}"
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#define CONF_REPEATABLE_MASK 0x01
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#define CONF_BLOCK_MASK 0x02
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#define CONF_LINE_TOKEN_MAX 3
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struct config_entry {
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const char *name;
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unsigned char mask;
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GSList *params;
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};
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static GSList *config_entries;
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static int get_bool(const char *value)
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{
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const char **x;
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static const char *t[] = { "yes", "true", "1", NULL };
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static const char *f[] = { "no", "false", "0", NULL };
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for (x = t; *x; x++) {
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if (!strcasecmp(*x, value))
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return 1;
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}
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for (x = f; *x; x++) {
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if (!strcasecmp(*x, value))
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return 0;
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}
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return CONF_BOOL_INVALID;
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}
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struct config_param *
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newConfigParam(const char *value, int line)
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{
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struct config_param *ret = g_new(struct config_param, 1);
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if (!value)
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ret->value = NULL;
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else
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ret->value = g_strdup(value);
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ret->line = line;
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ret->num_block_params = 0;
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ret->block_params = NULL;
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return ret;
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}
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void
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config_param_free(gpointer data, G_GNUC_UNUSED gpointer user_data)
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{
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struct config_param *param = data;
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int i;
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g_free(param->value);
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for (i = 0; i < param->num_block_params; i++) {
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g_free(param->block_params[i].name);
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g_free(param->block_params[i].value);
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}
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if (param->num_block_params)
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g_free(param->block_params);
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g_free(param);
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}
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static struct config_entry *
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newConfigEntry(const char *name, int repeatable, int block)
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{
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struct config_entry *ret = g_new(struct config_entry, 1);
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ret->name = name;
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ret->mask = 0;
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ret->params = NULL;
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if (repeatable)
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ret->mask |= CONF_REPEATABLE_MASK;
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if (block)
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ret->mask |= CONF_BLOCK_MASK;
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return ret;
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}
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static void
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config_entry_free(gpointer data, G_GNUC_UNUSED gpointer user_data)
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{
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struct config_entry *entry = data;
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g_slist_foreach(entry->params, config_param_free, NULL);
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g_slist_free(entry->params);
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g_free(entry);
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}
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static struct config_entry *
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config_entry_get(const char *name)
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{
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GSList *list;
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for (list = config_entries; list != NULL;
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list = g_slist_next(list)) {
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struct config_entry *entry = list->data;
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if (strcmp(entry->name, name) == 0)
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return entry;
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}
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return NULL;
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}
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static void registerConfigParam(const char *name, int repeatable, int block)
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{
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struct config_entry *entry;
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entry = config_entry_get(name);
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if (entry != NULL)
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g_error("config parameter \"%s\" already registered\n", name);
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entry = newConfigEntry(name, repeatable, block);
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config_entries = g_slist_prepend(config_entries, entry);
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}
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void config_global_finish(void)
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{
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g_slist_foreach(config_entries, config_entry_free, NULL);
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g_slist_free(config_entries);
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}
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void config_global_init(void)
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{
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config_entries = NULL;
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/* registerConfigParam(name, repeatable, block); */
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registerConfigParam(CONF_MUSIC_DIR, 0, 0);
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registerConfigParam(CONF_PLAYLIST_DIR, 0, 0);
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registerConfigParam(CONF_FOLLOW_INSIDE_SYMLINKS, 0, 0);
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registerConfigParam(CONF_FOLLOW_OUTSIDE_SYMLINKS, 0, 0);
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registerConfigParam(CONF_DB_FILE, 0, 0);
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registerConfigParam(CONF_STICKER_FILE, false, false);
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registerConfigParam(CONF_LOG_FILE, 0, 0);
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registerConfigParam(CONF_ERROR_FILE, 0, 0);
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registerConfigParam(CONF_PID_FILE, 0, 0);
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registerConfigParam(CONF_STATE_FILE, 0, 0);
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registerConfigParam(CONF_USER, 0, 0);
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registerConfigParam(CONF_BIND_TO_ADDRESS, 1, 0);
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registerConfigParam(CONF_PORT, 0, 0);
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registerConfigParam(CONF_LOG_LEVEL, 0, 0);
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registerConfigParam(CONF_ZEROCONF_NAME, 0, 0);
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registerConfigParam(CONF_ZEROCONF_ENABLED, 0, 0);
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registerConfigParam(CONF_PASSWORD, 1, 0);
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registerConfigParam(CONF_DEFAULT_PERMS, 0, 0);
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registerConfigParam(CONF_AUDIO_OUTPUT, 1, 1);
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registerConfigParam(CONF_AUDIO_OUTPUT_FORMAT, 0, 0);
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registerConfigParam(CONF_MIXER_TYPE, 0, 0);
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registerConfigParam(CONF_MIXER_DEVICE, 0, 0);
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registerConfigParam(CONF_MIXER_CONTROL, 0, 0);
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registerConfigParam(CONF_REPLAYGAIN, 0, 0);
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registerConfigParam(CONF_REPLAYGAIN_PREAMP, 0, 0);
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registerConfigParam(CONF_VOLUME_NORMALIZATION, 0, 0);
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registerConfigParam(CONF_SAMPLERATE_CONVERTER, 0, 0);
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registerConfigParam(CONF_AUDIO_BUFFER_SIZE, 0, 0);
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registerConfigParam(CONF_BUFFER_BEFORE_PLAY, 0, 0);
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registerConfigParam(CONF_HTTP_PROXY_HOST, 0, 0);
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registerConfigParam(CONF_HTTP_PROXY_PORT, 0, 0);
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registerConfigParam(CONF_HTTP_PROXY_USER, 0, 0);
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registerConfigParam(CONF_HTTP_PROXY_PASSWORD, 0, 0);
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registerConfigParam(CONF_CONN_TIMEOUT, 0, 0);
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registerConfigParam(CONF_MAX_CONN, 0, 0);
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registerConfigParam(CONF_MAX_PLAYLIST_LENGTH, 0, 0);
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registerConfigParam(CONF_MAX_COMMAND_LIST_SIZE, 0, 0);
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registerConfigParam(CONF_MAX_OUTPUT_BUFFER_SIZE, 0, 0);
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registerConfigParam(CONF_FS_CHARSET, 0, 0);
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registerConfigParam(CONF_ID3V1_ENCODING, 0, 0);
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registerConfigParam(CONF_METADATA_TO_USE, 0, 0);
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registerConfigParam(CONF_SAVE_ABSOLUTE_PATHS, 0, 0);
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registerConfigParam(CONF_DECODER, true, true);
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registerConfigParam(CONF_INPUT, true, true);
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registerConfigParam(CONF_GAPLESS_MP3_PLAYBACK, 0, 0);
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}
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void
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addBlockParam(struct config_param * param, const char *name, const char *value,
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int line)
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{
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struct block_param *bp;
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param->num_block_params++;
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param->block_params = g_realloc(param->block_params,
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param->num_block_params *
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sizeof(param->block_params[0]));
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bp = ¶m->block_params[param->num_block_params - 1];
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bp->name = g_strdup(name);
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bp->value = g_strdup(value);
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bp->line = line;
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}
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static struct config_param *
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config_read_fileigBlock(FILE * fp, int *count, char *string)
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{
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struct config_param *ret = newConfigParam(NULL, *count);
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int i;
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int numberOfArgs;
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int argsMinusComment;
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while (fgets(string, MAX_STRING_SIZE, fp)) {
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char *array[CONF_LINE_TOKEN_MAX] = { NULL };
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(*count)++;
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numberOfArgs = buffer2array(string, array, CONF_LINE_TOKEN_MAX);
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for (i = 0; i < numberOfArgs; i++) {
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if (array[i][0] == CONF_COMMENT)
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break;
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}
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argsMinusComment = i;
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if (0 == argsMinusComment) {
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continue;
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}
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if (1 == argsMinusComment &&
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0 == strcmp(array[0], CONF_BLOCK_END)) {
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break;
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}
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if (2 != argsMinusComment) {
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g_error("improperly formatted config file at line %i:"
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" %s\n", *count, string);
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}
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if (0 == strcmp(array[0], CONF_BLOCK_BEGIN) ||
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0 == strcmp(array[1], CONF_BLOCK_BEGIN) ||
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0 == strcmp(array[0], CONF_BLOCK_END) ||
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0 == strcmp(array[1], CONF_BLOCK_END)) {
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g_error("improperly formatted config file at line %i: %s "
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"in block beginning at line %i\n",
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*count, string, ret->line);
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}
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addBlockParam(ret, array[0], array[1], *count);
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}
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return ret;
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}
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void config_read_file(const char *file)
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{
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FILE *fp;
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char string[MAX_STRING_SIZE + 1];
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int i;
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int numberOfArgs;
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int argsMinusComment;
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int count = 0;
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struct config_entry *entry;
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struct config_param *param;
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g_debug("loading file %s", file);
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if (!(fp = fopen(file, "r"))) {
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g_error("problems opening file %s for reading: %s\n",
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file, strerror(errno));
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}
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while (fgets(string, MAX_STRING_SIZE, fp)) {
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char *array[CONF_LINE_TOKEN_MAX] = { NULL };
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count++;
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numberOfArgs = buffer2array(string, array, CONF_LINE_TOKEN_MAX);
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for (i = 0; i < numberOfArgs; i++) {
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if (array[i][0] == CONF_COMMENT)
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break;
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}
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argsMinusComment = i;
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if (0 == argsMinusComment) {
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continue;
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}
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if (2 != argsMinusComment) {
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g_error("improperly formatted config file at line %i:"
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" %s\n", count, string);
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}
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entry = config_entry_get(array[0]);
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if (entry == NULL)
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g_error("unrecognized parameter in config file at "
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"line %i: %s\n", count, string);
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if (!(entry->mask & CONF_REPEATABLE_MASK) &&
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entry->params != NULL) {
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param = entry->params->data;
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g_error("config parameter \"%s\" is first defined on "
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"line %i and redefined on line %i\n",
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array[0], param->line, count);
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}
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if (entry->mask & CONF_BLOCK_MASK) {
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if (0 != strcmp(array[1], CONF_BLOCK_BEGIN)) {
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g_error("improperly formatted config file at "
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"line %i: %s\n", count, string);
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}
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param = config_read_fileigBlock(fp, &count, string);
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} else
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param = newConfigParam(array[1], count);
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entry->params = g_slist_append(entry->params, param);
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}
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fclose(fp);
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}
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void
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config_add_param(const char *name, struct config_param *param)
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{
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struct config_entry *entry = config_entry_get(name);
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assert(entry != NULL);
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entry->params = g_slist_append(entry->params, param);
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}
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struct config_param *
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config_get_next_param(const char *name, const struct config_param * last)
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{
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struct config_entry *entry;
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GSList *node;
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struct config_param *param;
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entry = config_entry_get(name);
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if (entry == NULL)
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return NULL;
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node = entry->params;
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if (last) {
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node = g_slist_find(node, last);
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if (node == NULL)
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return NULL;
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node = g_slist_next(node);
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}
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if (node == NULL)
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return NULL;
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param = node->data;
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return param;
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}
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const char *
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config_get_string(const char *name, const char *default_value)
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{
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const struct config_param *param = config_get_param(name);
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if (param == NULL)
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return default_value;
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return param->value;
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}
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const char *
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config_get_path(const char *name)
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{
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struct config_param *param = config_get_param(name);
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char *path;
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if (param == NULL)
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return NULL;
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path = parsePath(param->value);
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if (path == NULL)
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g_error("error parsing \"%s\" at line %i\n",
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name, param->line);
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g_free(param->value);
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return param->value = path;
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}
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unsigned
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config_get_positive(const char *name, unsigned default_value)
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{
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const struct config_param *param = config_get_param(name);
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long value;
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char *endptr;
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if (param == NULL)
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return default_value;
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value = strtol(param->value, &endptr, 0);
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if (*endptr != 0)
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g_error("Not a valid number in line %i", param->line);
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if (value <= 0)
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g_error("Not a positive number in line %i", param->line);
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return (unsigned)value;
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}
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struct block_param *
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getBlockParam(const struct config_param * param, const char *name)
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{
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struct block_param *ret = NULL;
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int i;
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if (param == NULL)
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return NULL;
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for (i = 0; i < param->num_block_params; i++) {
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if (0 == strcmp(name, param->block_params[i].name)) {
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if (ret) {
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g_warning("\"%s\" first defined on line %i, and "
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"redefined on line %i\n", name,
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ret->line, param->block_params[i].line);
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}
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ret = param->block_params + i;
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}
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}
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return ret;
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}
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bool config_get_bool(const char *name, bool default_value)
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{
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const struct config_param *param = config_get_param(name);
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int value;
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if (param == NULL)
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return default_value;
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value = get_bool(param->value);
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if (value == CONF_BOOL_INVALID)
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g_error("%s is not a boolean value (yes, true, 1) or "
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"(no, false, 0) on line %i\n",
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name, param->line);
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if (value == CONF_BOOL_UNSET)
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return default_value;
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return !!value;
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}
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const char *
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config_get_block_string(const struct config_param *param, const char *name,
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const char *default_value)
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{
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struct block_param *bp = getBlockParam(param, name);
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if (bp == NULL)
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return default_value;
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return bp->value;
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}
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unsigned
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config_get_block_unsigned(const struct config_param *param, const char *name,
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unsigned default_value)
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{
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struct block_param *bp = getBlockParam(param, name);
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long value;
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char *endptr;
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if (bp == NULL)
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return default_value;
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value = strtol(bp->value, &endptr, 0);
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if (*endptr != 0)
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g_error("Not a valid number in line %i", bp->line);
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if (value < 0)
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g_error("Not a positive number in line %i", bp->line);
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return (unsigned)value;
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}
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bool
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config_get_block_bool(const struct config_param *param, const char *name,
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bool default_value)
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{
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struct block_param *bp = getBlockParam(param, name);
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int value;
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if (bp == NULL)
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return default_value;
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value = get_bool(bp->value);
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if (value == CONF_BOOL_INVALID)
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g_error("%s is not a boolean value (yes, true, 1) or "
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"(no, false, 0) on line %i\n",
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name, bp->line);
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if (value == CONF_BOOL_UNSET)
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return default_value;
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return !!value;
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}
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