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/*
* Copyright (c) 2021, Sergey Bugaev <bugaevc@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ClientConnection.h"
#include "DNSPacket.h"
#include "LookupServer.h"
#include <AK/IPv4Address.h>
namespace LookupServer {
static HashMap<int, RefPtr<ClientConnection>> s_connections;
ClientConnection::ClientConnection(AK::NonnullRefPtr<Core::LocalSocket> socket, int client_id)
: IPC::ClientConnection<LookupClientEndpoint, LookupServerEndpoint>(*this, move(socket), client_id)
{
s_connections.set(client_id, *this);
}
ClientConnection::~ClientConnection()
{
}
void ClientConnection::die()
{
s_connections.remove(client_id());
}
OwnPtr<Messages::LookupServer::LookupNameResponse> ClientConnection::handle(const Messages::LookupServer::LookupName& message)
{
auto answers = LookupServer::the().lookup(message.name(), T_A);
if (answers.is_empty())
return make<Messages::LookupServer::LookupNameResponse>(1, Vector<String>());
Vector<String> addresses;
for (auto& answer : answers) {
addresses.append(answer.record_data());
}
return make<Messages::LookupServer::LookupNameResponse>(0, move(addresses));
}
OwnPtr<Messages::LookupServer::LookupAddressResponse> ClientConnection::handle(const Messages::LookupServer::LookupAddress& message)
{
if (message.address().length() != 4)
return make<Messages::LookupServer::LookupAddressResponse>(1, String());
IPv4Address address { (const u8*)message.address().characters() };
auto name = String::formatted("{}.{}.{}.{}.in-addr.arpa",
address[3],
address[2],
address[1],
address[0]);
auto answers = LookupServer::the().lookup(name, T_PTR);
if (answers.is_empty())
return make<Messages::LookupServer::LookupAddressResponse>(1, String());
return make<Messages::LookupServer::LookupAddressResponse>(0, answers[0].record_data());
}
}
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