mirror of
https://github.com/debauchee/barrier.git
synced 2024-12-22 02:21:41 +03:00
364 lines
8.9 KiB
C++
364 lines
8.9 KiB
C++
/*
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* synergy -- mouse and keyboard sharing utility
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* Copyright (C) 2002 Chris Schoeneman
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*
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* This package is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* found in the file COPYING that should have accompanied this file.
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*
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* This package is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "CClientProxy1_0.h"
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#include "CServer.h"
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#include "CClipboard.h"
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#include "CProtocolUtil.h"
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#include "XSynergy.h"
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#include "IInputStream.h"
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#include "IOutputStream.h"
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#include "CLock.h"
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#include "CThread.h"
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#include "CLog.h"
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#include "CStopwatch.h"
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#include <cstring>
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//
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// CClientProxy1_0
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//
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CClientProxy1_0::CClientProxy1_0(IServer* server, const CString& name,
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IInputStream* input, IOutputStream* output) :
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CClientProxy(server, name, input, output)
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{
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for (UInt32 i = 0; i < kClipboardEnd; ++i) {
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m_clipboardDirty[i] = true;
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}
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}
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CClientProxy1_0::~CClientProxy1_0()
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{
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// do nothing
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}
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void
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CClientProxy1_0::open()
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{
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// send request
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LOG((CLOG_DEBUG1 "querying client \"%s\" info", getName().c_str()));
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CProtocolUtil::writef(getOutputStream(), kMsgQInfo);
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getOutputStream()->flush();
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// wait for and verify reply
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UInt8 code[4];
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for (;;) {
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UInt32 n = getInputStream()->read(code, 4, -1.0);
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if (n == 4) {
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if (memcmp(code, kMsgCNoop, 4) == 0) {
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// discard heartbeats
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continue;
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}
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if (memcmp(code, kMsgDInfo, 4) == 0) {
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break;
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}
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}
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throw XBadClient();
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}
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// handle reply
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recvInfo(false);
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}
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void
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CClientProxy1_0::mainLoop()
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{
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// handle messages until the client hangs up or stops sending heartbeats
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CStopwatch heartTimer;
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for (;;) {
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CThread::testCancel();
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// wait for a message
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UInt8 code[4];
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UInt32 n = getInputStream()->read(code, 4, kHeartRate);
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CThread::testCancel();
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// check if client hungup
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if (n == 0) {
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LOG((CLOG_NOTE "client \"%s\" disconnected", getName().c_str()));
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return;
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}
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// check if client has stopped sending heartbeats
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if (n == (UInt32)-1) {
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if (kHeartDeath >= 0.0 && heartTimer.getTime() > kHeartDeath) {
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LOG((CLOG_NOTE "client \"%s\" is dead", getName().c_str()));
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return;
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}
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continue;
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}
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// got a message so reset heartbeat monitor
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heartTimer.reset();
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// verify we got an entire code
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if (n != 4) {
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LOG((CLOG_ERR "incomplete message from \"%s\": %d bytes", getName().c_str(), n));
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// client sent an incomplete message
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throw XBadClient();
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}
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// parse message
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LOG((CLOG_DEBUG2 "msg from \"%s\": %c%c%c%c", getName().c_str(), code[0], code[1], code[2], code[3]));
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if (memcmp(code, kMsgDInfo, 4) == 0) {
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recvInfo(true);
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}
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else if (memcmp(code, kMsgCNoop, 4) == 0) {
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// discard no-ops
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continue;
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}
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else if (memcmp(code, kMsgCClipboard, 4) == 0) {
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recvGrabClipboard();
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}
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else if (memcmp(code, kMsgDClipboard, 4) == 0) {
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recvClipboard();
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}
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// note -- more message handlers go here
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else {
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LOG((CLOG_ERR "invalid message from client \"%s\"", getName().c_str()));
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// unknown message
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throw XBadClient();
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}
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}
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}
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void
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CClientProxy1_0::close()
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{
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LOG((CLOG_DEBUG1 "send close to \"%s\"", getName().c_str()));
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CProtocolUtil::writef(getOutputStream(), kMsgCClose);
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// force the close to be sent before we return
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getOutputStream()->flush();
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}
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void
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CClientProxy1_0::enter(SInt32 xAbs, SInt32 yAbs,
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UInt32 seqNum, KeyModifierMask mask, bool)
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{
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LOG((CLOG_DEBUG1 "send enter to \"%s\", %d,%d %d %04x", getName().c_str(), xAbs, yAbs, seqNum, mask));
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CProtocolUtil::writef(getOutputStream(), kMsgCEnter,
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xAbs, yAbs, seqNum, mask);
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}
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bool
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CClientProxy1_0::leave()
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{
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LOG((CLOG_DEBUG1 "send leave to \"%s\"", getName().c_str()));
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CProtocolUtil::writef(getOutputStream(), kMsgCLeave);
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// we can never prevent the user from leaving
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return true;
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}
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void
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CClientProxy1_0::setClipboard(ClipboardID id, const CString& data)
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{
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// ignore if this clipboard is already clean
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CLock lock(&m_mutex);
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if (m_clipboardDirty[id]) {
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// this clipboard is now clean
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m_clipboardDirty[id] = false;
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LOG((CLOG_DEBUG "send clipboard %d to \"%s\" size=%d", id, getName().c_str(), data.size()));
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CProtocolUtil::writef(getOutputStream(), kMsgDClipboard, id, 0, &data);
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}
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}
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void
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CClientProxy1_0::grabClipboard(ClipboardID id)
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{
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LOG((CLOG_DEBUG "send grab clipboard %d to \"%s\"", id, getName().c_str()));
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CProtocolUtil::writef(getOutputStream(), kMsgCClipboard, id, 0);
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// this clipboard is now dirty
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CLock lock(&m_mutex);
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m_clipboardDirty[id] = true;
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}
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void
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CClientProxy1_0::setClipboardDirty(ClipboardID id, bool dirty)
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{
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CLock lock(&m_mutex);
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m_clipboardDirty[id] = dirty;
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}
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void
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CClientProxy1_0::keyDown(KeyID key, KeyModifierMask mask)
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{
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LOG((CLOG_DEBUG1 "send key down to \"%s\" id=%d, mask=0x%04x", getName().c_str(), key, mask));
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CProtocolUtil::writef(getOutputStream(), kMsgDKeyDown, key, mask);
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}
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void
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CClientProxy1_0::keyRepeat(KeyID key, KeyModifierMask mask, SInt32 count)
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{
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LOG((CLOG_DEBUG1 "send key repeat to \"%s\" id=%d, mask=0x%04x, count=%d", getName().c_str(), key, mask, count));
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CProtocolUtil::writef(getOutputStream(), kMsgDKeyRepeat, key, mask, count);
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}
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void
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CClientProxy1_0::keyUp(KeyID key, KeyModifierMask mask)
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{
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LOG((CLOG_DEBUG1 "send key up to \"%s\" id=%d, mask=0x%04x", getName().c_str(), key, mask));
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CProtocolUtil::writef(getOutputStream(), kMsgDKeyUp, key, mask);
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}
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void
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CClientProxy1_0::mouseDown(ButtonID button)
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{
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LOG((CLOG_DEBUG1 "send mouse down to \"%s\" id=%d", getName().c_str(), button));
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CProtocolUtil::writef(getOutputStream(), kMsgDMouseDown, button);
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}
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void
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CClientProxy1_0::mouseUp(ButtonID button)
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{
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LOG((CLOG_DEBUG1 "send mouse up to \"%s\" id=%d", getName().c_str(), button));
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CProtocolUtil::writef(getOutputStream(), kMsgDMouseUp, button);
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}
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void
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CClientProxy1_0::mouseMove(SInt32 xAbs, SInt32 yAbs)
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{
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LOG((CLOG_DEBUG2 "send mouse move to \"%s\" %d,%d", getName().c_str(), xAbs, yAbs));
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CProtocolUtil::writef(getOutputStream(), kMsgDMouseMove, xAbs, yAbs);
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}
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void
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CClientProxy1_0::mouseWheel(SInt32 delta)
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{
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LOG((CLOG_DEBUG2 "send mouse wheel to \"%s\" %+d", getName().c_str(), delta));
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CProtocolUtil::writef(getOutputStream(), kMsgDMouseWheel, delta);
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}
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void
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CClientProxy1_0::screensaver(bool on)
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{
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LOG((CLOG_DEBUG1 "send screen saver to \"%s\" on=%d", getName().c_str(), on ? 1 : 0));
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CProtocolUtil::writef(getOutputStream(), kMsgCScreenSaver, on ? 1 : 0);
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}
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SInt32
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CClientProxy1_0::getJumpZoneSize() const
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{
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CLock lock(&m_mutex);
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return m_info.m_zoneSize;
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}
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void
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CClientProxy1_0::getShape(SInt32& x, SInt32& y, SInt32& w, SInt32& h) const
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{
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CLock lock(&m_mutex);
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x = m_info.m_x;
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y = m_info.m_y;
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w = m_info.m_w;
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h = m_info.m_h;
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}
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void
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CClientProxy1_0::getCursorPos(SInt32&, SInt32&) const
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{
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assert(0 && "shouldn't be called");
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}
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void
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CClientProxy1_0::getCursorCenter(SInt32& x, SInt32& y) const
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{
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CLock lock(&m_mutex);
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x = m_info.m_mx;
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y = m_info.m_my;
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}
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void
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CClientProxy1_0::recvInfo(bool notify)
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{
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{
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CLock lock(&m_mutex);
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// parse the message
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SInt16 x, y, w, h, zoneSize, mx, my;
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CProtocolUtil::readf(getInputStream(), kMsgDInfo + 4,
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&x, &y, &w, &h, &zoneSize, &mx, &my);
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LOG((CLOG_DEBUG "received client \"%s\" info shape=%d,%d %dx%d, zone=%d, pos=%d,%d", getName().c_str(), x, y, w, h, zoneSize, mx, my));
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// validate
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if (w <= 0 || h <= 0 || zoneSize < 0) {
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throw XBadClient();
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}
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if (mx < x || my < y || mx >= x + w || my >= y + h) {
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throw XBadClient();
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}
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// save
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m_info.m_x = x;
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m_info.m_y = y;
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m_info.m_w = w;
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m_info.m_h = h;
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m_info.m_zoneSize = zoneSize;
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m_info.m_mx = mx;
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m_info.m_my = my;
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}
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// tell server of change
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if (notify) {
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getServer()->onInfoChanged(getName(), m_info);
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}
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// acknowledge receipt
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LOG((CLOG_DEBUG1 "send info ack to \"%s\"", getName().c_str()));
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CProtocolUtil::writef(getOutputStream(), kMsgCInfoAck);
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}
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void
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CClientProxy1_0::recvClipboard()
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{
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// parse message
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ClipboardID id;
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UInt32 seqNum;
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CString data;
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CProtocolUtil::readf(getInputStream(), kMsgDClipboard + 4, &id, &seqNum, &data);
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LOG((CLOG_DEBUG "received client \"%s\" clipboard %d seqnum=%d, size=%d", getName().c_str(), id, seqNum, data.size()));
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// validate
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if (id >= kClipboardEnd) {
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throw XBadClient();
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}
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// send update. this calls us back to reset our clipboard dirty flag
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// so don't hold a lock during the call.
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getServer()->onClipboardChanged(id, seqNum, data);
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}
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void
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CClientProxy1_0::recvGrabClipboard()
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{
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// parse message
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ClipboardID id;
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UInt32 seqNum;
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CProtocolUtil::readf(getInputStream(), kMsgCClipboard + 4, &id, &seqNum);
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LOG((CLOG_DEBUG "received client \"%s\" grabbed clipboard %d seqnum=%d", getName().c_str(), id, seqNum));
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// validate
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if (id >= kClipboardEnd) {
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throw XBadClient();
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}
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// send update. this calls us back to reset our clipboard dirty flag
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// so don't hold a lock during the call.
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getServer()->onGrabClipboard(getName(), id, seqNum);
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}
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