115 lines
3.0 KiB
C++
115 lines
3.0 KiB
C++
/*
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* Copyright (C) 2003-2014 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 "config.h"
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#include "SongLoader.hxx"
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#include "client/Client.hxx"
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#include "db/DatabaseSong.hxx"
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#include "storage/StorageInterface.hxx"
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#include "ls.hxx"
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#include "fs/AllocatedPath.hxx"
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#include "fs/Traits.hxx"
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#include "util/UriUtil.hxx"
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#include "util/Error.hxx"
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#include "DetachedSong.hxx"
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#include "PlaylistError.hxx"
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#include <assert.h>
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#include <string.h>
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#ifdef ENABLE_DATABASE
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SongLoader::SongLoader(const Client &_client)
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:client(&_client), db(_client.GetDatabase(IgnoreError())),
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storage(_client.GetStorage()) {}
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#endif
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DetachedSong *
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SongLoader::LoadFile(const char *path_utf8, Error &error) const
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{
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#ifdef ENABLE_DATABASE
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if (storage != nullptr) {
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const char *suffix = storage->MapToRelativeUTF8(path_utf8);
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if (suffix != nullptr)
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/* this path was relative to the music
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directory - obtain it from the database */
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return LoadSong(suffix, error);
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}
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#endif
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if (client != nullptr) {
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const auto path_fs = AllocatedPath::FromUTF8(path_utf8, error);
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if (path_fs.IsNull())
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return nullptr;
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if (!client->AllowFile(path_fs, error))
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return nullptr;
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}
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DetachedSong *song = new DetachedSong(path_utf8);
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if (!song->Update()) {
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error.Set(playlist_domain, int(PlaylistResult::NO_SUCH_SONG),
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"No such file");
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delete song;
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return nullptr;
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}
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return song;
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}
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DetachedSong *
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SongLoader::LoadSong(const char *uri_utf8, Error &error) const
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{
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#if !CLANG_CHECK_VERSION(3,6)
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/* disabled on clang due to -Wtautological-pointer-compare */
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assert(uri_utf8 != nullptr);
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#endif
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if (memcmp(uri_utf8, "file:///", 8) == 0)
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/* absolute path */
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return LoadFile(uri_utf8 + 7, error);
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else if (PathTraitsUTF8::IsAbsolute(uri_utf8))
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/* absolute path */
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return LoadFile(uri_utf8, error);
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else if (uri_has_scheme(uri_utf8)) {
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/* remove URI */
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if (!uri_supported_scheme(uri_utf8)) {
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error.Set(playlist_domain,
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int(PlaylistResult::NO_SUCH_SONG),
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"Unsupported URI scheme");
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return nullptr;
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}
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return new DetachedSong(uri_utf8);
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} else {
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/* URI relative to the music directory */
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#ifdef ENABLE_DATABASE
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if (db != nullptr)
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return DatabaseDetachSong(*db, *storage,
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uri_utf8, error);
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#endif
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error.Set(playlist_domain, int(PlaylistResult::NO_SUCH_SONG),
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"No database");
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return nullptr;
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}
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}
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