barrier/src/lib/server/ClientProxy1_4.cpp

92 lines
2.3 KiB
C++

/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2012 Synergy Si Ltd.
* Copyright (C) 2011 Chris Schoeneman
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file COPYING that should have accompanied this file.
*
* This package 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, see <http://www.gnu.org/licenses/>.
*/
#include "server/ClientProxy1_4.h"
#include "server/Server.h"
#include "synergy/ProtocolUtil.h"
#include "io/CryptoStream.h"
#include "base/Log.h"
#include "base/IEventQueue.h"
#include "base/TMethodEventJob.h"
#include <cstring>
#include <memory>
//
// ClientProxy1_4
//
ClientProxy1_4::ClientProxy1_4(const String& name, synergy::IStream* stream, Server* server, IEventQueue* events) :
ClientProxy1_3(name, stream, events), m_server(server)
{
assert(m_server != NULL);
}
ClientProxy1_4::~ClientProxy1_4()
{
}
void
ClientProxy1_4::keyDown(KeyID key, KeyModifierMask mask, KeyButton button)
{
cryptoIv();
ClientProxy1_3::keyDown(key, mask, button);
}
void
ClientProxy1_4::keyRepeat(KeyID key, KeyModifierMask mask, SInt32 count, KeyButton button)
{
cryptoIv();
ClientProxy1_3::keyRepeat(key, mask, count, button);
}
void
ClientProxy1_4::keyUp(KeyID key, KeyModifierMask mask, KeyButton button)
{
cryptoIv();
ClientProxy1_3::keyUp(key, mask, button);
}
void
ClientProxy1_4::keepAlive()
{
cryptoIv();
ClientProxy1_3::keepAlive();
}
void
ClientProxy1_4::cryptoIv()
{
CryptoStream* cryptoStream = dynamic_cast<CryptoStream*>(getStream());
if (cryptoStream == NULL) {
return;
}
byte iv[CRYPTO_IV_SIZE];
cryptoStream->newIv(iv);
String data(reinterpret_cast<const char*>(iv), CRYPTO_IV_SIZE);
LOG((CLOG_DEBUG2 "send crypto iv change to \"%s\"", getName().c_str()));
ProtocolUtil::writef(getStream(), kMsgDCryptoIv, &data);
// change IV only after we've sent the current IV, otherwise
// the client won't be able to decrypt the new IV.
cryptoStream->setEncryptIv(iv);
}