/* * Copyright 2003-2017 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 "SongSave.hxx" #include "db/plugins/simple/Song.hxx" #include "DetachedSong.hxx" #include "TagSave.hxx" #include "fs/io/TextFile.hxx" #include "fs/io/BufferedOutputStream.hxx" #include "tag/Tag.hxx" #include "tag/TagBuilder.hxx" #include "util/StringUtil.hxx" #include "util/RuntimeError.hxx" #include #include #define SONG_MTIME "mtime" #define SONG_END "song_end" static void range_save(BufferedOutputStream &os, unsigned start_ms, unsigned end_ms) { if (end_ms > 0) os.Format("Range: %u-%u\n", start_ms, end_ms); else if (start_ms > 0) os.Format("Range: %u-\n", start_ms); } void song_save(BufferedOutputStream &os, const Song &song) { os.Format(SONG_BEGIN "%s\n", song.uri); range_save(os, song.start_time.ToMS(), song.end_time.ToMS()); tag_save(os, song.tag); os.Format(SONG_MTIME ": %li\n", (long)song.mtime); os.Format(SONG_END "\n"); } void song_save(BufferedOutputStream &os, const DetachedSong &song) { os.Format(SONG_BEGIN "%s\n", song.GetURI()); range_save(os, song.GetStartTime().ToMS(), song.GetEndTime().ToMS()); tag_save(os, song.GetTag()); os.Format(SONG_MTIME ": %li\n", (long)song.GetLastModified()); os.Format(SONG_END "\n"); } DetachedSong * song_load(TextFile &file, const char *uri) { DetachedSong *song = new DetachedSong(uri); TagBuilder tag; char *line; while ((line = file.ReadLine()) != nullptr && strcmp(line, SONG_END) != 0) { char *colon = strchr(line, ':'); if (colon == nullptr || colon == line) { delete song; throw FormatRuntimeError("unknown line in db: %s", line); } *colon++ = 0; const char *value = StripLeft(colon); TagType type; if ((type = tag_name_parse(line)) != TAG_NUM_OF_ITEM_TYPES) { tag.AddItem(type, value); } else if (strcmp(line, "Time") == 0) { tag.SetDuration(SignedSongTime::FromS(atof(value))); } else if (strcmp(line, "Playlist") == 0) { tag.SetHasPlaylist(strcmp(value, "yes") == 0); } else if (strcmp(line, SONG_MTIME) == 0) { song->SetLastModified(atoi(value)); } else if (strcmp(line, "Range") == 0) { char *endptr; unsigned start_ms = strtoul(value, &endptr, 10); unsigned end_ms = *endptr == '-' ? strtoul(endptr + 1, nullptr, 10) : 0; song->SetStartTime(SongTime::FromMS(start_ms)); song->SetEndTime(SongTime::FromMS(end_ms)); } else { delete song; throw FormatRuntimeError("unknown line in db: %s", line); } } song->SetTag(tag.Commit()); return song; }