mpd/src/command/ClientCommands.cxx

127 lines
3.3 KiB
C++

/*
* 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 "ClientCommands.hxx"
#include "Request.hxx"
#include "Permission.hxx"
#include "client/Client.hxx"
#include "client/Response.hxx"
#include "TagPrint.hxx"
#include "tag/ParseName.hxx"
#include "util/StringAPI.hxx"
CommandResult
handle_close([[maybe_unused]] Client &client, [[maybe_unused]] Request args,
[[maybe_unused]] Response &r)
{
return CommandResult::FINISH;
}
CommandResult
handle_ping([[maybe_unused]] Client &client, [[maybe_unused]] Request args,
[[maybe_unused]] Response &r)
{
return CommandResult::OK;
}
CommandResult
handle_binary_limit(Client &client, Request args,
[[maybe_unused]] Response &r)
{
size_t value = args.ParseUnsigned(0, client.GetOutputMaxSize() - 4096);
if (value < 64) {
r.Error(ACK_ERROR_ARG, "Value too small");
return CommandResult::ERROR;
}
client.binary_limit = value;
return CommandResult::OK;
}
CommandResult
handle_password(Client &client, Request args, Response &r)
{
const auto permission = GetPermissionFromPassword(args.front());
if (!permission) {
r.Error(ACK_ERROR_PASSWORD, "incorrect password");
return CommandResult::ERROR;
}
client.SetPermission(*permission);
return CommandResult::OK;
}
static TagMask
ParseTagMask(Request request)
{
if (request.empty())
throw ProtocolError(ACK_ERROR_ARG, "Not enough arguments");
TagMask result = TagMask::None();
for (const char *name : request) {
auto type = tag_name_parse_i(name);
if (type == TAG_NUM_OF_ITEM_TYPES)
throw ProtocolError(ACK_ERROR_ARG, "Unknown tag type");
result |= type;
}
return result;
}
CommandResult
handle_tagtypes(Client &client, Request request, Response &r)
{
if (request.empty()) {
tag_print_types(r);
return CommandResult::OK;
}
const char *cmd = request.shift();
if (StringIsEqual(cmd, "all")) {
if (!request.empty()) {
r.Error(ACK_ERROR_ARG, "Too many arguments");
return CommandResult::ERROR;
}
client.tag_mask = TagMask::All();
return CommandResult::OK;
} else if (StringIsEqual(cmd, "clear")) {
if (!request.empty()) {
r.Error(ACK_ERROR_ARG, "Too many arguments");
return CommandResult::ERROR;
}
client.tag_mask = TagMask::None();
return CommandResult::OK;
} else if (StringIsEqual(cmd, "enable")) {
client.tag_mask |= ParseTagMask(request);
return CommandResult::OK;
} else if (StringIsEqual(cmd, "disable")) {
client.tag_mask &= ~ParseTagMask(request);
return CommandResult::OK;
} else {
r.Error(ACK_ERROR_ARG, "Unknown sub command");
return CommandResult::ERROR;
}
}