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/*
* Copyright 2003-2021 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 "OutputCommands.hxx"
#include "Request.hxx"
#include "output/Print.hxx"
#include "output/OutputCommand.hxx"
#include "client/Client.hxx"
#include "client/Response.hxx"
#include "Partition.hxx"
#include "IdleFlags.hxx"
#include "util/CharUtil.hxx"
CommandResult
handle_enableoutput(Client &client, Request args, Response &r)
{
assert(args.size == 1);
unsigned device = args.ParseUnsigned(0);
if (!audio_output_enable_index(client.GetPartition().outputs, device)) {
r.Error(ACK_ERROR_NO_EXIST, "No such audio output");
return CommandResult::ERROR;
}
return CommandResult::OK;
}
CommandResult
handle_disableoutput(Client &client, Request args, Response &r)
{
assert(args.size == 1);
unsigned device = args.ParseUnsigned(0);
if (!audio_output_disable_index(client.GetPartition().outputs, device)) {
r.Error(ACK_ERROR_NO_EXIST, "No such audio output");
return CommandResult::ERROR;
}
return CommandResult::OK;
}
CommandResult
handle_toggleoutput(Client &client, Request args, Response &r)
{
assert(args.size == 1);
unsigned device = args.ParseUnsigned(0);
if (!audio_output_toggle_index(client.GetPartition().outputs, device)) {
r.Error(ACK_ERROR_NO_EXIST, "No such audio output");
return CommandResult::ERROR;
}
return CommandResult::OK;
}
static bool
IsValidAttributeNameChar(char ch) noexcept
{
return IsAlphaNumericASCII(ch) || ch == '_';
}
gcc_pure
static bool
IsValidAttributeName(const char *s) noexcept
{
do {
if (!IsValidAttributeNameChar(*s))
return false;
} while (*++s);
return true;
}
CommandResult
handle_outputset(Client &client, Request request, Response &response)
{
assert(request.size == 3);
const unsigned i = request.ParseUnsigned(0);
auto &partition = client.GetPartition();
auto &outputs = partition.outputs;
if (i >= outputs.Size()) {
response.Error(ACK_ERROR_NO_EXIST, "No such audio output");
return CommandResult::ERROR;
}
auto &ao = outputs.Get(i);
const char *const name = request[1];
if (!IsValidAttributeName(name)) {
response.Error(ACK_ERROR_ARG, "Illegal attribute name");
return CommandResult::ERROR;
}
const char *const value = request[2];
ao.SetAttribute(name, value);
partition.EmitIdle(IDLE_OUTPUT);
return CommandResult::OK;
}
CommandResult
handle_devices(Client &client, [[maybe_unused]] Request args, Response &r)
{
assert(args.empty());
printAudioDevices(r, client.GetPartition().outputs);
return CommandResult::OK;
}
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