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path: root/src/playlist/PlaylistMapper.cxx
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/*
 * Copyright (C) 2003-2014 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 "config.h"
#include "PlaylistMapper.hxx"
#include "PlaylistFile.hxx"
#include "PlaylistStream.hxx"
#include "PlaylistRegistry.hxx"
#include "Mapper.hxx"
#include "fs/AllocatedPath.hxx"
#include "storage/StorageInterface.hxx"
#include "util/UriUtil.hxx"

#include <assert.h>

/**
 * Load a playlist from the configured playlist directory.
 */
static SongEnumerator *
playlist_open_in_playlist_dir(const char *uri, Mutex &mutex, Cond &cond)
{
	assert(spl_valid_name(uri));

	const auto path_fs = map_spl_utf8_to_fs(uri);
	if (path_fs.IsNull())
		return nullptr;

	return playlist_open_path(path_fs.c_str(), mutex, cond);
}

#ifdef ENABLE_DATABASE

/**
 * Load a playlist from the configured music directory.
 */
static SongEnumerator *
playlist_open_in_storage(const char *uri, const Storage *storage,
			 Mutex &mutex, Cond &cond)
{
	assert(uri_safe_local(uri));

	if (storage == nullptr)
		return nullptr;

	{
		const auto path = storage->MapFS(uri);
		if (!path.IsNull())
			return playlist_open_path(path.c_str(), mutex, cond);
	}

	const auto uri2 = storage->MapUTF8(uri);
	return playlist_open_remote(uri2.c_str(), mutex, cond);
}

#endif

SongEnumerator *
playlist_mapper_open(const char *uri,
#ifdef ENABLE_DATABASE
		     const Storage *storage,
#endif
		     Mutex &mutex, Cond &cond)
{
	if (spl_valid_name(uri)) {
		auto playlist = playlist_open_in_playlist_dir(uri,
							      mutex, cond);
		if (playlist != nullptr)
			return playlist;
	}

#ifdef ENABLE_DATABASE
	if (uri_safe_local(uri)) {
		auto playlist = playlist_open_in_storage(uri, storage,
							 mutex, cond);
		if (playlist != nullptr)
			return playlist;
	}
#endif

	return nullptr;
}