a5d7f5e1fa
This allows detangling dependencies and fixes a linker problem in test/test_translate_song.cxx.
70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright The Music Player Daemon Project
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#ifndef MPD_SONG_LOADER_HXX
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#define MPD_SONG_LOADER_HXX
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#include "config.h"
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#include <cstddef>
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class IClient;
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class Database;
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class Storage;
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class DetachedSong;
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class Path;
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struct LocatedUri;
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/**
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* A utility class that loads a #DetachedSong object by its URI. If
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* the URI is an absolute local file, it applies security checks via
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* Client::AllowFile(). If no #Client pointer was specified, then it
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* is assumed that all local files are allowed.
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*/
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class SongLoader {
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const IClient *const client;
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#ifdef ENABLE_DATABASE
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const Database *const db;
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const Storage *const storage;
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#endif
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public:
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#ifdef ENABLE_DATABASE
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explicit SongLoader(const IClient &_client) noexcept;
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SongLoader(const Database *_db, const Storage *_storage) noexcept
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:client(nullptr), db(_db), storage(_storage) {}
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SongLoader(const IClient &_client, const Database *_db,
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const Storage *_storage) noexcept
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:client(&_client), db(_db), storage(_storage) {}
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#else
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explicit SongLoader(const IClient &_client) noexcept
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:client(&_client) {}
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explicit SongLoader(std::nullptr_t, std::nullptr_t) noexcept
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:client(nullptr) {}
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#endif
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#ifdef ENABLE_DATABASE
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const Storage *GetStorage() const noexcept {
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return storage;
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}
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#endif
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DetachedSong LoadSong(const LocatedUri &uri) const;
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/**
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* Throws #std::runtime_error on error.
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*/
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[[gnu::nonnull]]
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DetachedSong LoadSong(const char *uri_utf8) const;
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private:
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[[gnu::nonnull]]
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DetachedSong LoadFromDatabase(const char *uri) const;
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[[gnu::nonnull]]
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DetachedSong LoadFile(const char *path_utf8, Path path_fs) const;
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};
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#endif
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