/*
* Copyright (C) 2003-2014 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 "QueueCommands.hxx"
#include "CommandError.hxx"
#include "db/DatabaseQueue.hxx"
#include "db/Selection.hxx"
#include "SongFilter.hxx"
#include "SongLoader.hxx"
#include "queue/Playlist.hxx"
#include "PlaylistPrint.hxx"
#include "client/Client.hxx"
#include "Partition.hxx"
#include "BulkEdit.hxx"
#include "protocol/ArgParser.hxx"
#include "protocol/Result.hxx"
#include "ls.hxx"
#include "util/ConstBuffer.hxx"
#include "util/UriUtil.hxx"
#include "util/NumberParser.hxx"
#include "util/Error.hxx"
#include "fs/AllocatedPath.hxx"
#include <limits>
#include <string.h>
static const char *
translate_uri(Client &client, const char *uri)
{
if (memcmp(uri, "file:///", 8) == 0)
/* drop the "file://", leave only an absolute path
(starting with a slash) */
return uri + 7;
if (PathTraitsUTF8::IsAbsolute(uri)) {
command_error(client, ACK_ERROR_NO_EXIST, "Malformed URI");
return nullptr;
}
return uri;
}
CommandResult
handle_add(Client &client, ConstBuffer<const char *> args)
{
const char *uri = args.front();
if (memcmp(uri, "/", 2) == 0)
/* this URI is malformed, but some clients are buggy
and use "add /" to add the whole database, which
was never intended to work, but once did; in order
to retain backwards compatibility, work around this
here */
uri = "";
uri = translate_uri(client, uri);
if (uri == nullptr)
return CommandResult::ERROR;
if (uri_has_scheme(uri) || PathTraitsUTF8::IsAbsolute(uri)) {
const SongLoader loader(client);
Error error;
unsigned id = client.partition.AppendURI(loader, uri, error);
if (id == 0)
return print_error(client, error);
return CommandResult::OK;
}
#ifdef ENABLE_DATABASE
const ScopeBulkEdit bulk_edit(client.partition);
const DatabaseSelection selection(uri, true);
Error error;
return AddFromDatabase(client.partition, selection, error)
? CommandResult::OK
: print_error(client, error);
#else
command_error(client, ACK_ERROR_NO_EXIST, "No database");
return CommandResult::ERROR;
#endif
}
CommandResult
handle_addid(Client &client, ConstBuffer<const char *> args)
{
const char *const uri = translate_uri(client, args.front());
if (uri == nullptr)
return CommandResult::ERROR;
const SongLoader loader(client);
Error error;
unsigned added_id = client.partition.AppendURI(loader, uri, error);
if (added_id == 0)
return print_error(client, error);
if (args.size == 2) {
unsigned to;
if (!check_unsigned(client, &to, args[1]))
return CommandResult::ERROR;
PlaylistResult result = client.partition.MoveId(added_id, to);
if (result != PlaylistResult::SUCCESS) {
CommandResult ret =
print_playlist_result(client, result);
client.partition.DeleteId(added_id);
return ret;
}
}
client_printf(client, "Id: %u\n", added_id);
return CommandResult::OK;
}
/**
* Parse a string in the form "START:END", both being (optional)
* fractional non-negative time offsets in seconds. Returns both in
* integer milliseconds. Omitted values are zero.
*/
static bool
parse_time_range(const char *p, SongTime &start_r, SongTime &end_r)
{
char *endptr;
const float start = ParseFloat(p, &endptr);
if (*endptr != ':' || start < 0)
return false;
start_r = endptr > p
? SongTime::FromS(start)
: SongTime::zero();
p = endptr + 1;
const float end = ParseFloat(p, &endptr);
if (*endptr != 0 || end < 0)
return false;
end_r = endptr > p
? SongTime::FromS(end)
: SongTime::zero();
return end_r.IsZero() || end_r > start_r;
}
CommandResult
handle_rangeid(Client &client, ConstBuffer<const char *> args)
{
unsigned id;
if (!check_unsigned(client, &id, args.front()))
return CommandResult::ERROR;
SongTime start, end;
if (!parse_time_range(args[1], start, end)) {
command_error(client, ACK_ERROR_ARG, "Bad range");
return CommandResult::ERROR;
}
Error error;
if (!client.partition.playlist.SetSongIdRange(client.partition.pc,
id, start, end,
error))
return print_error(client, error);
return CommandResult::OK;
}
CommandResult
handle_delete(Client &client, ConstBuffer<const char *> args)
{
unsigned start, end;
if (!check_range(client, &start, &end, args.front()))
return CommandResult::ERROR;
PlaylistResult result = client.partition.DeleteRange(start, end);
return print_playlist_result(client, result);
}
CommandResult
handle_deleteid(Client &client, ConstBuffer<const char *> args)
{
unsigned id;
if (!check_unsigned(client, &id, args.front()))
return CommandResult::ERROR;
PlaylistResult result = client.partition.DeleteId(id);
return print_playlist_result(client, result);
}
CommandResult
handle_playlist(Client &client, gcc_unused ConstBuffer<const char *> args)
{
playlist_print_uris(client, client.playlist);
return CommandResult::OK;
}
CommandResult
handle_shuffle(gcc_unused Client &client, ConstBuffer<const char *> args)
{
unsigned start = 0, end = client.playlist.queue.GetLength();
if (args.size == 1 && !check_range(client, &start, &end, args.front()))
return CommandResult::ERROR;
client.partition.Shuffle(start, end);
return CommandResult::OK;
}
CommandResult
handle_clear(gcc_unused Client &client, gcc_unused ConstBuffer<const char *> args)
{
client.partition.ClearQueue();
return CommandResult::OK;
}
CommandResult
handle_plchanges(Client &client, ConstBuffer<const char *> args)
{
uint32_t version;
if (!check_uint32(client, &version, args.front()))
return CommandResult::ERROR;
playlist_print_changes_info(client, client.playlist, version);
return CommandResult::OK;
}
CommandResult
handle_plchangesposid(Client &client, ConstBuffer<const char *> args)
{
uint32_t version;
if (!check_uint32(client, &version, args.front()))
return CommandResult::ERROR;
playlist_print_changes_position(client, client.playlist, version);
return CommandResult::OK;
}
CommandResult
handle_playlistinfo(Client &client, ConstBuffer<const char *> args)
{
unsigned start = 0, end = std::numeric_limits<unsigned>::max();
bool ret;
if (args.size == 1 && !check_range(client, &start, &end, args.front()))
return CommandResult::ERROR;
ret = playlist_print_info(client, client.playlist, start, end);
if (!ret)
return print_playlist_result(client,
PlaylistResult::BAD_RANGE);
return CommandResult::OK;
}
CommandResult
handle_playlistid(Client &client, ConstBuffer<const char *> args)
{
if (!args.IsEmpty()) {
unsigned id;
if (!check_unsigned(client, &id, args.front()))
return CommandResult::ERROR;
bool ret = playlist_print_id(client, client.playlist, id);
if (!ret)
return print_playlist_result(client,
PlaylistResult::NO_SUCH_SONG);
} else {
playlist_print_info(client, client.playlist,
0, std::numeric_limits<unsigned>::max());
}
return CommandResult::OK;
}
static CommandResult
handle_playlist_match(Client &client, ConstBuffer<const char *> args,
bool fold_case)
{
SongFilter filter;
if (!filter.Parse(args, fold_case)) {
command_error(client, ACK_ERROR_ARG, "incorrect arguments");
return CommandResult::ERROR;
}
playlist_print_find(client, client.playlist, filter);
return CommandResult::OK;
}
CommandResult
handle_playlistfind(Client &client, ConstBuffer<const char *> args)
{
return handle_playlist_match(client, args, false);
}
CommandResult
handle_playlistsearch(Client &client, ConstBuffer<const char *> args)
{
return handle_playlist_match(client, args, true);
}
CommandResult
handle_prio(Client &client, ConstBuffer<const char *> args)
{
const char *const priority_string = args.shift();
unsigned priority;
if (!check_unsigned(client, &priority, priority_string))
return CommandResult::ERROR;
if (priority > 0xff) {
command_error(client, ACK_ERROR_ARG,
"Priority out of range: %s", priority_string);
return CommandResult::ERROR;
}
for (const char *i : args) {
unsigned start_position, end_position;
if (!check_range(client, &start_position, &end_position, i))
return CommandResult::ERROR;
PlaylistResult result =
client.partition.SetPriorityRange(start_position,
end_position,
priority);
if (result != PlaylistResult::SUCCESS)
return print_playlist_result(client, result);
}
return CommandResult::OK;
}
CommandResult
handle_prioid(Client &client, ConstBuffer<const char *> args)
{
const char *const priority_string = args.shift();
unsigned priority;
if (!check_unsigned(client, &priority, priority_string))
return CommandResult::ERROR;
if (priority > 0xff) {
command_error(client, ACK_ERROR_ARG,
"Priority out of range: %s", priority_string);
return CommandResult::ERROR;
}
for (const char *i : args) {
unsigned song_id;
if (!check_unsigned(client, &song_id, i))
return CommandResult::ERROR;
PlaylistResult result =
client.partition.SetPriorityId(song_id, priority);
if (result != PlaylistResult::SUCCESS)
return print_playlist_result(client, result);
}
return CommandResult::OK;
}
CommandResult
handle_move(Client &client, ConstBuffer<const char *> args)
{
unsigned start, end;
int to;
if (!check_range(client, &start, &end, args[0]))
return CommandResult::ERROR;
if (!check_int(client, &to, args[1]))
return CommandResult::ERROR;
PlaylistResult result =
client.partition.MoveRange(start, end, to);
return print_playlist_result(client, result);
}
CommandResult
handle_moveid(Client &client, ConstBuffer<const char *> args)
{
unsigned id;
int to;
if (!check_unsigned(client, &id, args[0]))
return CommandResult::ERROR;
if (!check_int(client, &to, args[1]))
return CommandResult::ERROR;
PlaylistResult result = client.partition.MoveId(id, to);
return print_playlist_result(client, result);
}
CommandResult
handle_swap(Client &client, ConstBuffer<const char *> args)
{
unsigned song1, song2;
if (!check_unsigned(client, &song1, args[0]))
return CommandResult::ERROR;
if (!check_unsigned(client, &song2, args[1]))
return CommandResult::ERROR;
PlaylistResult result =
client.partition.SwapPositions(song1, song2);
return print_playlist_result(client, result);
}
CommandResult
handle_swapid(Client &client, ConstBuffer<const char *> args)
{
unsigned id1, id2;
if (!check_unsigned(client, &id1, args[0]))
return CommandResult::ERROR;
if (!check_unsigned(client, &id2, args[1]))
return CommandResult::ERROR;
PlaylistResult result = client.partition.SwapIds(id1, id2);
return print_playlist_result(client, result);
}