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/*
* Copyright (C) 2003-2011 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 "playlist_song.h"
#include "database.h"
#include "mapper.h"
#include "song.h"
#include "uri.h"
#include "ls.h"
#include "tag.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)) {
char *path_fs = map_song_fs(dest);
if (path_fs == NULL)
return dest;
tmp = song_file_new(path_fs, NULL);
g_free(path_fs);
merge_song_metadata(tmp, dest, src);
} else {
tmp = song_file_new(dest->uri, NULL);
merge_song_metadata(tmp, dest, src);
song_free(dest);
}
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;
return tmp;
}
static struct song *
playlist_check_load_song(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 {
dest = db_get_song(uri);
if (dest == NULL)
/* not found in database */
return NULL;
}
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;
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 *prefix = mapper_get_music_directory();
if (prefix != NULL && g_str_has_prefix(uri, prefix) &&
uri[strlen(prefix)] == '/')
uri += strlen(prefix) + 1;
else if (!secure) {
/* local files must be relative to the music
directory when "secure" is enabled */
song_free(song);
return NULL;
}
base_uri = NULL;
}
if (base_uri != NULL)
uri = g_build_filename(base_uri, uri, NULL);
else
uri = g_strdup(uri);
struct song *dest = playlist_check_load_song(song, uri, secure);
song_free(song);
g_free(uri);
return dest;
}
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