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/*
* Copyright (C) 2003-2009 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "playlist_list.h"
#include "playlist_plugin.h"
#include "playlist/extm3u_playlist_plugin.h"
#include "playlist/m3u_playlist_plugin.h"
#include "playlist/xspf_playlist_plugin.h"
#include "playlist/lastfm_playlist_plugin.h"
#include "playlist/pls_playlist_plugin.h"
#include "playlist/asx_playlist_plugin.h"
#include "input_stream.h"
#include "uri.h"
#include "utils.h"
#include "conf.h"
#include "config.h"
#include <glib.h>
#include <assert.h>
#include <string.h>
#include <stdio.h>
static const struct playlist_plugin *const playlist_plugins[] = {
&extm3u_playlist_plugin,
&m3u_playlist_plugin,
&xspf_playlist_plugin,
&pls_playlist_plugin,
&asx_playlist_plugin,
#ifdef ENABLE_LASTFM
&lastfm_playlist_plugin,
#endif
NULL
};
/** which plugins have been initialized successfully? */
static bool playlist_plugins_enabled[G_N_ELEMENTS(playlist_plugins)];
/**
* Find the "playlist" configuration block for the specified plugin.
*
* @param plugin_name the name of the playlist plugin
* @return the configuration block, or NULL if none was configured
*/
static const struct config_param *
playlist_plugin_config(const char *plugin_name)
{
const struct config_param *param = NULL;
assert(plugin_name != NULL);
while ((param = config_get_next_param(CONF_PLAYLIST_PLUGIN, param)) != NULL) {
const char *name =
config_get_block_string(param, "name", NULL);
if (name == NULL)
g_error("playlist configuration without 'plugin' name in line %d",
param->line);
if (strcmp(name, plugin_name) == 0)
return param;
}
return NULL;
}
void
playlist_list_global_init(void)
{
for (unsigned i = 0; playlist_plugins[i] != NULL; ++i) {
const struct playlist_plugin *plugin = playlist_plugins[i];
const struct config_param *param =
playlist_plugin_config(plugin->name);
if (!config_get_block_bool(param, "enabled", true))
/* the plugin is disabled in mpd.conf */
continue;
playlist_plugins_enabled[i] =
playlist_plugin_init(playlist_plugins[i], param);
}
}
void
playlist_list_global_finish(void)
{
for (unsigned i = 0; playlist_plugins[i] != NULL; ++i)
if (playlist_plugins_enabled[i])
playlist_plugin_finish(playlist_plugins[i]);
}
struct playlist_provider *
playlist_list_open_uri(const char *uri)
{
char *scheme;
struct playlist_provider *playlist = NULL;
assert(uri != NULL);
scheme = g_uri_parse_scheme(uri);
if (scheme == NULL)
return NULL;
for (unsigned i = 0; playlist_plugins[i] != NULL; ++i) {
const struct playlist_plugin *plugin = playlist_plugins[i];
if (playlist_plugins_enabled[i] &&
stringFoundInStringArray(plugin->schemes, scheme)) {
playlist = playlist_plugin_open_uri(plugin, uri);
if (playlist != NULL)
break;
}
}
g_free(scheme);
return playlist;
}
static struct playlist_provider *
playlist_list_open_stream_mime(struct input_stream *is)
{
struct playlist_provider *playlist;
assert(is != NULL);
assert(is->mime != NULL);
for (unsigned i = 0; playlist_plugins[i] != NULL; ++i) {
const struct playlist_plugin *plugin = playlist_plugins[i];
if (playlist_plugins_enabled[i] &&
stringFoundInStringArray(plugin->mime_types, is->mime)) {
/* rewind the stream, so each plugin gets a
fresh start */
input_stream_seek(is, 0, SEEK_SET);
playlist = playlist_plugin_open_stream(plugin, is);
if (playlist != NULL)
return playlist;
}
}
return NULL;
}
static struct playlist_provider *
playlist_list_open_stream_suffix(struct input_stream *is, const char *suffix)
{
struct playlist_provider *playlist;
assert(is != NULL);
assert(suffix != NULL);
for (unsigned i = 0; playlist_plugins[i] != NULL; ++i) {
const struct playlist_plugin *plugin = playlist_plugins[i];
if (playlist_plugins_enabled[i] &&
stringFoundInStringArray(plugin->suffixes, suffix)) {
/* rewind the stream, so each plugin gets a
fresh start */
input_stream_seek(is, 0, SEEK_SET);
playlist = playlist_plugin_open_stream(plugin, is);
if (playlist != NULL)
return playlist;
}
}
return NULL;
}
struct playlist_provider *
playlist_list_open_stream(struct input_stream *is, const char *uri)
{
const char *suffix;
struct playlist_provider *playlist;
if (is->mime != NULL) {
playlist = playlist_list_open_stream_mime(is);
if (playlist != NULL)
return playlist;
}
suffix = uri != NULL ? uri_get_suffix(uri) : NULL;
if (suffix != NULL) {
playlist = playlist_list_open_stream_suffix(is, suffix);
if (playlist != NULL)
return playlist;
}
return NULL;
}
static bool
playlist_suffix_supported(const char *suffix)
{
assert(suffix != NULL);
for (unsigned i = 0; playlist_plugins[i] != NULL; ++i) {
const struct playlist_plugin *plugin = playlist_plugins[i];
if (playlist_plugins_enabled[i] &&
stringFoundInStringArray(plugin->suffixes, suffix))
return true;
}
return false;
}
struct playlist_provider *
playlist_list_open_path(struct input_stream *is, const char *path_fs)
{
const char *suffix;
struct playlist_provider *playlist;
assert(path_fs != NULL);
suffix = uri_get_suffix(path_fs);
if (suffix == NULL || !playlist_suffix_supported(suffix) ||
!input_stream_open(is, path_fs))
return NULL;
playlist = playlist_list_open_stream_suffix(is, suffix);
if (playlist == NULL)
input_stream_close(is);
return playlist;
}
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