128 lines
2.9 KiB
C++
128 lines
2.9 KiB
C++
/*
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* Copyright 2003-2020 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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/*
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* Maps directory and song objects to file system paths.
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*/
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#include "config.h"
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#include "Mapper.hxx"
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#include "fs/AllocatedPath.hxx"
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#include "fs/CheckFile.hxx"
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#include "util/StringCompare.hxx"
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#ifdef ENABLE_DATABASE
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#include "storage/StorageInterface.hxx"
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#include "Instance.hxx"
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#include "Main.hxx"
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#endif
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#include <cassert>
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/**
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* The absolute path of the playlist directory encoded in the
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* filesystem character set.
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*/
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static AllocatedPath playlist_dir_fs = nullptr;
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static void
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mapper_set_playlist_dir(AllocatedPath &&path)
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{
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assert(!path.IsNull());
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playlist_dir_fs = std::move(path);
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CheckDirectoryReadable(playlist_dir_fs);
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}
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void
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mapper_init(AllocatedPath &&_playlist_dir)
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{
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if (!_playlist_dir.IsNull())
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mapper_set_playlist_dir(std::move(_playlist_dir));
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}
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#ifdef ENABLE_DATABASE
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AllocatedPath
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map_uri_fs(const char *uri) noexcept
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{
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assert(uri != nullptr);
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assert(*uri != '/');
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if (global_instance->storage == nullptr)
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return nullptr;
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const auto music_dir_fs = global_instance->storage->MapFS("");
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if (music_dir_fs.IsNull())
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return nullptr;
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const auto uri_fs = AllocatedPath::FromUTF8(uri);
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if (uri_fs.IsNull())
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return nullptr;
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return music_dir_fs / uri_fs;
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}
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std::string
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map_fs_to_utf8(Path path_fs) noexcept
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{
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if (path_fs.IsAbsolute()) {
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if (global_instance->storage == nullptr)
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return std::string();
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const auto music_dir_fs = global_instance->storage->MapFS("");
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if (music_dir_fs.IsNull())
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return std::string();
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auto relative = music_dir_fs.Relative(path_fs);
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if (relative == nullptr || StringIsEmpty(relative))
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return std::string();
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path_fs = Path::FromFS(relative);
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}
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return path_fs.ToUTF8();
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}
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#endif
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const AllocatedPath &
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map_spl_path() noexcept
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{
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return playlist_dir_fs;
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}
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AllocatedPath
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map_spl_utf8_to_fs(const char *name) noexcept
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{
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if (playlist_dir_fs.IsNull())
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return nullptr;
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std::string filename_utf8 = name;
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filename_utf8.append(PLAYLIST_FILE_SUFFIX);
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const auto filename_fs =
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AllocatedPath::FromUTF8(filename_utf8);
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if (filename_fs.IsNull())
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return nullptr;
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return playlist_dir_fs / filename_fs;
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}
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