1 /****************************************************************************
3 ** Copyright (C) 2007-2008 Urs Wolfer <uwolfer @ kde.org>
5 ** This file is part of KDE.
7 ** This program is free software; you can redistribute it and/or modify
8 ** it under the terms of the GNU General Public License as published by
9 ** the Free Software Foundation; either version 2 of the License, or
10 ** (at your option) any later version.
12 ** This program is distributed in the hope that it will be useful,
13 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 ** GNU General Public License for more details.
17 ** You should have received a copy of the GNU General Public License
18 ** along with this program; see the file COPYING. If not, write to
19 ** the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 ** Boston, MA 02110-1301, USA.
22 ****************************************************************************/
24 #include "vncclientthread.h"
26 #include <QCoreApplication>
27 #include <QMutexLocker>
30 static QString outputErrorMessageString;
32 rfbBool VncClientThread::newclient(rfbClient *cl)
34 VncClientThread *t = (VncClientThread*)rfbClientGetClientData(cl, 0);
37 const int width = cl->width, height = cl->height, depth = cl->format.bitsPerPixel;
38 const int size = width * height * (depth / 8);
40 delete [] t->frameBuffer; // do not leak if we get a new framebuffer size
41 t->frameBuffer = new uint8_t[size];
42 cl->frameBuffer = t->frameBuffer;
43 memset(cl->frameBuffer, '\0', size);
44 cl->format.bitsPerPixel = 32;
45 cl->format.redShift = 16;
46 cl->format.greenShift = 8;
47 cl->format.blueShift = 0;
48 cl->format.redMax = 0xff;
49 cl->format.greenMax = 0xff;
50 cl->format.blueMax = 0xff;
52 switch (t->quality()) {
53 case RemoteView::High:
54 cl->appData.useBGR233 = 0;
55 cl->appData.encodingsString = "copyrect hextile raw";
56 cl->appData.compressLevel = 0;
57 cl->appData.qualityLevel = 9;
59 case RemoteView::Medium:
60 cl->appData.useBGR233 = 0;
61 cl->appData.encodingsString = "tight zrle ultra copyrect hextile zlib corre rre raw";
62 cl->appData.compressLevel = 5;
63 cl->appData.qualityLevel = 7;
66 case RemoteView::Unknown:
68 cl->appData.useBGR233 = 1;
69 cl->appData.encodingsString = "tight zrle ultra copyrect hextile zlib corre rre raw";
70 cl->appData.compressLevel = 9;
71 cl->appData.qualityLevel = 1;
74 SetFormatAndEncodings(cl);
79 void VncClientThread::updatefb(rfbClient* cl, int x, int y, int w, int h)
81 //kDebug(5011) << "updated client: x: " << x << ", y: " << y << ", w: " << w << ", h: " << h;
83 const int width = cl->width, height = cl->height;
85 const QImage img(cl->frameBuffer, width, height, QImage::Format_RGB32);
88 kDebug(5011) << "image not loaded";
91 VncClientThread *t = (VncClientThread*)rfbClientGetClientData(cl, 0);
96 t->emitUpdated(x, y, w, h);
99 void VncClientThread::cuttext(rfbClient* cl, const char *text, int textlen)
101 const QString cutText = QString::fromUtf8(text, textlen);
102 kDebug(5011) << "cuttext: " << cutText;
104 if (!cutText.isEmpty()) {
105 VncClientThread *t = (VncClientThread*)rfbClientGetClientData(cl, 0);
108 t->emitGotCut(cutText);
112 char *VncClientThread::passwdHandler(rfbClient *cl)
114 kDebug(5011) << "password request" << kBacktrace();
116 VncClientThread *t = (VncClientThread*)rfbClientGetClientData(cl, 0);
119 t->passwordRequest();
120 t->m_passwordError = true;
122 return strdup(t->password().toLocal8Bit());
125 void VncClientThread::outputHandler(const char *format, ...)
128 va_start(args, format);
131 message.vsprintf(format, args);
135 message = message.trimmed();
137 kDebug(5011) << message;
139 if ((message.contains("Couldn't convert ")) ||
140 (message.contains("Unable to connect to VNC server")))
141 outputErrorMessageString = i18n("Server not found.");
143 if ((message.contains("VNC connection failed: Authentication failed, too many tries")) ||
144 (message.contains("VNC connection failed: Too many authentication failures")))
145 outputErrorMessageString = i18n("VNC authentication failed because of too many authentication tries.");
147 if (message.contains("VNC connection failed: Authentication failed"))
148 outputErrorMessageString = i18n("VNC authentication failed.");
150 if (message.contains("VNC server closed connection"))
151 outputErrorMessageString = i18n("VNC server closed connection.");
153 // internal messages, not displayed to user
154 if (message.contains("VNC server supports protocol version 3.889")) // see http://bugs.kde.org/162640
155 outputErrorMessageString = "INTERNAL:APPLE_VNC_COMPATIBILTY";
158 VncClientThread::VncClientThread(QObject *parent)
162 outputErrorMessageString.clear(); //don't deliver error messages of old instances...
163 QMutexLocker locker(&mutex);
166 QTimer *outputErrorMessagesCheckTimer = new QTimer(this);
167 outputErrorMessagesCheckTimer->setInterval(500);
168 connect(outputErrorMessagesCheckTimer, SIGNAL(timeout()), this, SLOT(checkOutputErrorMessage()));
169 outputErrorMessagesCheckTimer->start();
172 VncClientThread::~VncClientThread()
176 const bool quitSuccess = wait(1000);
179 kDebug(5011) << "~VncClientThread(): Quit failed";
181 delete [] frameBuffer;
182 //cl is free()d when event loop exits.
185 void VncClientThread::checkOutputErrorMessage()
187 if (!outputErrorMessageString.isEmpty()) {
188 kDebug(5011) << outputErrorMessageString;
189 QString errorMessage = outputErrorMessageString;
190 outputErrorMessageString.clear();
191 // show authentication failure error only after the 3rd unsuccessful try
192 if ((errorMessage != i18n("VNC authentication failed.")) || m_passwordError)
193 outputErrorMessage(errorMessage);
197 void VncClientThread::setHost(const QString &host)
199 QMutexLocker locker(&mutex);
203 void VncClientThread::setPort(int port)
205 QMutexLocker locker(&mutex);
209 void VncClientThread::setQuality(RemoteView::Quality quality)
214 RemoteView::Quality VncClientThread::quality() const
219 void VncClientThread::setImage(const QImage &img)
221 QMutexLocker locker(&mutex);
225 const QImage VncClientThread::image(int x, int y, int w, int h)
227 QMutexLocker locker(&mutex);
229 if (w == 0) // full image requested
232 return m_image.copy(x, y, w, h);
235 void VncClientThread::emitUpdated(int x, int y, int w, int h)
237 emit imageUpdated(x, y, w, h);
240 void VncClientThread::emitGotCut(const QString &text)
245 void VncClientThread::stop()
250 //also abort listening for connections, should be safe without locking
252 cl->listenSpecified = false;
254 QMutexLocker locker(&mutex);
258 void VncClientThread::run()
260 QMutexLocker locker(&mutex);
262 int passwd_failures = 0;
263 while (!m_stopped) { // try to connect as long as the server allows
264 m_passwordError = false;
266 rfbClientLog = outputHandler;
267 rfbClientErr = outputHandler;
268 cl = rfbGetClient(8, 3, 4); // bitsPerSample, samplesPerPixel, bytesPerPixel
269 cl->MallocFrameBuffer = newclient;
270 cl->canHandleNewFBSize = true;
271 cl->GetPassword = passwdHandler;
272 cl->GotFrameBufferUpdate = updatefb;
273 cl->GotXCutText = cuttext;
274 rfbClientSetClientData(cl, 0, this);
276 cl->serverHost = strdup(m_host.toUtf8().constData());
278 if (m_port < 0 || !m_port) // port is invalid or empty...
279 m_port = 5900; // fallback: try an often used VNC port
281 if (m_port >= 0 && m_port < 100) // the user most likely used the short form (e.g. :1)
283 cl->serverPort = m_port;
285 cl->listenSpecified = rfbBool(listen_port > 0);
286 cl->listenPort = listen_port;
288 kDebug(5011) << "--------------------- trying init ---------------------";
290 if (rfbInitClient(cl, 0, 0))
294 if (m_passwordError) {
296 if(passwd_failures < 3)
297 continue; //that's ok, try again
302 return; //no cleanup necessary, cl was free()d by rfbInitClient()
307 // Main VNC event loop
309 const int i = WaitForMessage(cl, 500);
310 if(m_stopped or i < 0)
314 if (!HandleRFBServerMessage(cl))
319 while (!m_eventQueue.isEmpty()) {
320 ClientEvent* clientEvent = m_eventQueue.dequeue();
321 clientEvent->fire(cl);
328 // Cleanup allocated resources
330 rfbClientCleanup(cl);
334 ClientEvent::~ClientEvent()
338 void PointerClientEvent::fire(rfbClient* cl)
340 SendPointerEvent(cl, m_x, m_y, m_buttonMask);
343 void KeyClientEvent::fire(rfbClient* cl)
345 SendKeyEvent(cl, m_key, m_pressed);
348 void ClientCutEvent::fire(rfbClient* cl)
350 SendClientCutText(cl, text.toUtf8().data(), text.size());
353 void VncClientThread::mouseEvent(int x, int y, int buttonMask)
355 QMutexLocker lock(&mutex);
359 m_eventQueue.enqueue(new PointerClientEvent(x, y, buttonMask));
362 void VncClientThread::keyEvent(int key, bool pressed)
364 QMutexLocker lock(&mutex);
368 m_eventQueue.enqueue(new KeyClientEvent(key, pressed));
371 void VncClientThread::clientCut(const QString &text)
373 QMutexLocker lock(&mutex);
377 m_eventQueue.enqueue(new ClientCutEvent(text));
380 #include "moc_vncclientthread.cpp"