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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 "PlsPlaylistPlugin.hxx"
#include "PlaylistPlugin.hxx"
#include "MemorySongEnumerator.hxx"
#include "InputStream.hxx"
#include "Song.hxx"
#include "tag/Tag.hxx"
#include "util/Error.hxx"
#include "util/Domain.hxx"
#include "Log.hxx"
#include <glib.h>
#include <string>
#include <stdio.h>
static constexpr Domain pls_domain("pls");
static void
pls_parser(GKeyFile *keyfile, std::forward_list<SongPointer> &songs)
{
gchar *value;
int length;
GError *error = nullptr;
int num_entries = g_key_file_get_integer(keyfile, "playlist",
"NumberOfEntries", &error);
if (error) {
FormatError(pls_domain,
"Invalid PLS file: '%s'", error->message);
g_error_free(error);
error = nullptr;
/* Hack to work around shoutcast failure to comform to spec */
num_entries = g_key_file_get_integer(keyfile, "playlist",
"numberofentries", &error);
if (error) {
g_error_free(error);
error = nullptr;
}
}
while (num_entries > 0) {
Song *song;
char key[64];
sprintf(key, "File%u", num_entries);
value = g_key_file_get_string(keyfile, "playlist", key,
&error);
if(error) {
FormatError(pls_domain, "Invalid PLS entry %s: '%s'",
key, error->message);
g_error_free(error);
return;
}
song = Song::NewRemote(value);
g_free(value);
sprintf(key, "Title%u", num_entries);
value = g_key_file_get_string(keyfile, "playlist", key,
&error);
if(error == nullptr && value){
if (song->tag == nullptr)
song->tag = new Tag();
song->tag->AddItem(TAG_TITLE, value);
}
/* Ignore errors? Most likely value not present */
if(error) g_error_free(error);
error = nullptr;
g_free(value);
sprintf(key, "Length%u", num_entries);
length = g_key_file_get_integer(keyfile, "playlist", key,
&error);
if(error == nullptr && length > 0){
if (song->tag == nullptr)
song->tag = new Tag();
song->tag->time = length;
}
/* Ignore errors? Most likely value not present */
if(error) g_error_free(error);
error = nullptr;
songs.emplace_front(song);
num_entries--;
}
}
static SongEnumerator *
pls_open_stream(InputStream &is)
{
GError *error = nullptr;
Error error2;
size_t nbytes;
char buffer[1024];
bool success;
GKeyFile *keyfile;
std::string kf_data;
do {
nbytes = is.LockRead(buffer, sizeof(buffer), error2);
if (nbytes == 0) {
if (error2.IsDefined()) {
LogError(error2);
return nullptr;
}
break;
}
kf_data.append(buffer, nbytes);
/* Limit to 64k */
} while (kf_data.length() < 65536);
if (kf_data.empty()) {
LogWarning(pls_domain, "KeyFile parser failed: No Data");
return nullptr;
}
keyfile = g_key_file_new();
success = g_key_file_load_from_data(keyfile,
kf_data.data(), kf_data.length(),
G_KEY_FILE_NONE, &error);
if (!success) {
FormatError(pls_domain,
"KeyFile parser failed: %s", error->message);
g_error_free(error);
g_key_file_free(keyfile);
return nullptr;
}
std::forward_list<SongPointer> songs;
pls_parser(keyfile, songs);
g_key_file_free(keyfile);
return new MemorySongEnumerator(std::move(songs));
}
static const char *const pls_suffixes[] = {
"pls",
nullptr
};
static const char *const pls_mime_types[] = {
"audio/x-scpls",
nullptr
};
const struct playlist_plugin pls_playlist_plugin = {
"pls",
nullptr,
nullptr,
nullptr,
pls_open_stream,
nullptr,
pls_suffixes,
pls_mime_types,
};
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