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/*
* Copyright (C) 2003-2013 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 "PlaylistSong.hxx"
#include "Mapper.hxx"
#include "DatabasePlugin.hxx"
#include "DatabaseGlue.hxx"
#include "ls.hxx"
#include "tag.h"
#include "fs/Path.hxx"
extern "C" {
#include "song.h"
#include "uri.h"
}
#include <glib.h>
#include <assert.h>
#include <string.h>
static void
merge_song_metadata(struct song *dest, const struct song *base,
const struct song *add)
{
dest->tag = base->tag != NULL
? (add->tag != NULL
? tag_merge(base->tag, add->tag)
: tag_dup(base->tag))
: (add->tag != NULL
? tag_dup(add->tag)
: NULL);
dest->mtime = base->mtime;
dest->start_ms = add->start_ms;
dest->end_ms = add->end_ms;
}
static struct song *
apply_song_metadata(struct song *dest, const struct song *src)
{
struct song *tmp;
assert(dest != NULL);
assert(src != NULL);
if (src->tag == NULL && src->start_ms == 0 && src->end_ms == 0)
return dest;
if (song_in_database(dest)) {
const Path &path_fs = map_song_fs(dest);
if (path_fs.IsNull())
return dest;
std::string path_utf8 = path_fs.ToUTF8();
if (path_utf8.empty())
path_utf8 = path_fs.c_str();
tmp = song_file_new(path_utf8.c_str(), NULL);
merge_song_metadata(tmp, dest, src);
} else {
tmp = song_file_new(dest->uri, NULL);
merge_song_metadata(tmp, dest, src);
}
if (dest->tag != NULL && dest->tag->time > 0 &&
src->start_ms > 0 && src->end_ms == 0 &&
src->start_ms / 1000 < (unsigned)dest->tag->time)
/* the range is open-ended, and the playlist plugin
did not know the total length of the song file
(e.g. last track on a CUE file); fix it up here */
tmp->tag->time = dest->tag->time - src->start_ms / 1000;
song_free(dest);
return tmp;
}
static struct song *
playlist_check_load_song(const struct song *song, const char *uri, bool secure)
{
struct song *dest;
if (uri_has_scheme(uri)) {
dest = song_remote_new(uri);
} else if (g_path_is_absolute(uri) && secure) {
dest = song_file_load(uri, NULL);
if (dest == NULL)
return NULL;
} else {
const Database *db = GetDatabase(nullptr);
if (db == nullptr)
return nullptr;
struct song *tmp = db->GetSong(uri, nullptr);
if (tmp == NULL)
/* not found in database */
return NULL;
dest = song_dup_detached(tmp);
db->ReturnSong(tmp);
}
return apply_song_metadata(dest, song);
}
struct song *
playlist_check_translate_song(struct song *song, const char *base_uri,
bool secure)
{
if (song_in_database(song))
/* already ok */
return song;
const char *uri = song->uri;
if (uri_has_scheme(uri)) {
if (uri_supported_scheme(uri))
/* valid remote song */
return song;
else {
/* unsupported remote song */
song_free(song);
return NULL;
}
}
if (base_uri != NULL && strcmp(base_uri, ".") == 0)
/* g_path_get_dirname() returns "." when there is no
directory name in the given path; clear that now,
because it would break the database lookup
functions */
base_uri = NULL;
if (g_path_is_absolute(uri)) {
/* XXX fs_charset vs utf8? */
const char *suffix = map_to_relative_path(uri);
assert(suffix != NULL);
if (suffix != uri)
uri = suffix;
else if (!secure) {
/* local files must be relative to the music
directory when "secure" is enabled */
song_free(song);
return NULL;
}
base_uri = NULL;
}
char *allocated = NULL;
if (base_uri != NULL)
uri = allocated = g_build_filename(base_uri, uri, NULL);
struct song *dest = playlist_check_load_song(song, uri, secure);
song_free(song);
g_free(allocated);
return dest;
}
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