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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/115499/">https://git.reviewboard.kde.org/r/115499/</a>
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<p style="margin-top: 0;">On February 17th, 2014, 9:32 p.m. UTC, <b>George Kiagiadakis</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/115499/diff/1/?file=242050#file242050line111" style="color: black; font-weight: bold; text-decoration: underline;">krfb/invitationsrfbclient.cpp</a>
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(Diff revision 1)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="k">static</span> <span class="kt">void</span> <span class="n">clientGoneHookNoop</span><span class="p">(</span><span class="n">rfbClientPtr</span> <span class="n">cl</span><span class="p">)</span> <span class="p">{</span> <span class="n">Q_UNUSED</span><span class="p">(</span><span class="n">cl</span><span class="p">);</span> <span class="p">}</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="kt">void</span> <span class="n">PendingInvitationsRfbClient</span><span class="o">::</span><span class="n">onSocketActivated</span><span class="p">()</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="p">{</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">//Process not only one, but all pending messages.</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">//poll() idea/code copied from vino:</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// Copyright (C) 2003 Sun Microsystems, Inc.</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// License: GPL v2 or later</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">struct</span> <span class="n">pollfd</span> <span class="n">pollfd</span> <span class="o">=</span> <span class="p">{</span> <span class="n">d</span><span class="o">-></span><span class="n">client</span><span class="o">-></span><span class="n">sock</span><span class="p">,</span> <span class="n">POLLIN</span><span class="o">|</span><span class="n">POLLPRI</span><span class="p">,</span> <span class="mi">0</span> <span class="p">};</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">while</span><span class="p">(</span><span class="n">poll</span><span class="p">(</span><span class="o">&</span><span class="n">pollfd</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span><span class="p">(</span><span class="n">d</span><span class="o">-></span><span class="n">client</span><span class="o">-></span><span class="n">state</span> <span class="o">==</span> <span class="n">rfbClientRec</span><span class="o">::</span><span class="n">RFB_INITIALISATION</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">d</span><span class="o">-></span><span class="n">notifier</span><span class="o">-></span><span class="n">setEnabled</span><span class="p">(</span><span class="nb">false</span><span class="p">);</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">//Client is Authenticated</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">processNewClient</span><span class="p">();</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">break</span><span class="p">;</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">rfbProcessClientMessage</span><span class="p">(</span><span class="n">d</span><span class="o">-></span><span class="n">client</span><span class="p">);</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">//This is how we handle disconnection.</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">//if rfbProcessClientMessage() finds out that it can't read the socket,</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">//it closes it and sets it to -1. So, we just have to check this here</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">//and call rfbClientConnectionGone() if necessary. This will call</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">//the clientGoneHook which in turn will remove this RfbClient instance</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">//from the server manager and will call deleteLater() to delete it</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">d</span><span class="o">-></span><span class="n">client</span><span class="o">-></span><span class="n">sock</span> <span class="o">==</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">d</span><span class="o">-></span><span class="n">client</span><span class="o">-></span><span class="n">clientGoneHook</span> <span class="o">=</span> <span class="n">clientGoneHookNoop</span><span class="p">;</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">kDebug</span><span class="p">()</span> <span class="o"><<</span> <span class="s">"disconnected from socket signal"</span><span class="p">;</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">d</span><span class="o">-></span><span class="n">notifier</span><span class="o">-></span><span class="n">setEnabled</span><span class="p">(</span><span class="nb">false</span><span class="p">);</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">rfbClientConnectionGone</span><span class="p">(</span><span class="n">d</span><span class="o">-></span><span class="n">client</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I don't like very much that this code gets duplicated from RfbClient here. Why do you need this here?</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This was done to change the order of events during prompting the user. Previously, any un-authenticated client would first prompt the user for accepting/rejecting. By this change, the client remains a pending one, until it passes authentication, and can prompt user & get registered with RfbServerManager only after authentication is complete.
As soon as the client reaches state RFB_INITIALIZATION, processNewClient() is called to prompt the host-user to accept/reject (if askOnConnect is true). </pre>
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<p style="margin-top: 0;">On February 17th, 2014, 9:32 p.m. UTC, <b>George Kiagiadakis</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/115499/diff/1/?file=242080#file242080line111" style="color: black; font-weight: bold; text-decoration: underline;">libvncserver/sockets.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">int rfbMaxClientWait = 20000; /* time (ms) after which we decide client has</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">rfbScreen</span><span class="o">-></span><span class="n">socketState</span><span class="o"><span class="hl">!=</span></span><span class="n">RFB_SOCKET_<span class="hl">INIT</span></span><span class="p"><span class="hl">)</span></span></pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">rfbScreen</span><span class="o">-></span><span class="n">socketState</span> <span class="o"><span class="hl">==</span></span><span class="hl"> </span><span class="n">RFB_SOCKET_<span class="hl">READY</span></span><span class="p"><span class="hl">)</span></span><span class="hl"> </span><span class="p"><span class="hl">{</span></span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Is this really needed? What does it do? For the same reason (libvncserver code), we should avoid it.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">We would need the change if we wish to support repeated start/stop of the InvitationsRfbServer by the user, via the UI.
It makes sense for the function to return without doing anything, only when the sockets are already initialized (RFB_SOCKET_READY).
As the very next line shows, socketState is set to RFB_SOCKET_READY when rfbInitSockets is called first time properly & sockets are initialized.
Previously it's just checking if socket state is not RFB_SOCKET_INIT. This is also case when sockets are in shut down state, which causes problem, when user tries to start server again.</pre>
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<p style="margin-top: 0;">On February 17th, 2014, 9:32 p.m. UTC, <b>George Kiagiadakis</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Some more issues that I have noticed:
* The password edit button inititially says "Edit" with letters, but if you click on it it becomes a floppy icon and when you save the password it becomes the "document-edit" icon. For consistency, it should also initially have the "document-edit" icon instead of saying "Edit".
* I cannot enable the rfb server at all. It always returns an error, not sure why.
* krfb crashes on exit inside ~InvitationsRfbServer. In the backtrace it looks like the destructor is being recursively called from inside the destructor. I haven't understood why yet.
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">The Icon is set in the UI file to get set on start up. Not sure why you're experiencing the issue with the Icon. Works perfect at two machines I tested.
Also about the crash in InvitationsRfbServer's destructor, is it reproducable? Can you please tell the steps that lead to crash.
I have also fixed another crash regarding closing Krfb during pending connections, please see if you still get the crash. </pre>
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<p>- Amandeep</p>
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<p>On February 18th, 2014, 2:43 p.m. UTC, Amandeep Singh wrote:</p>
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<div>Review request for Telepathy and George Kiagiadakis.</div>
<div>By Amandeep Singh.</div>
<p style="color: grey;"><i>Updated Feb. 18, 2014, 2:43 p.m.</i></p>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
krfb
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Season of KDE Project - KRFB
Status Quo
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Currently KRFB works on an invite-only model, where the host user needs to create an invite via the Invitation Dialog.
This provides the connection details (address and password), which must then be communicated to the remote user.
No information about telepathy contacts with whom desktop can be shared is present in the KRFB Dialog.
The implementation of RFB also lacks support of clipboard operations like cut and paste of text.
Changes
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Krfb modified to move away from invite-model, and modeled as a service that can be started/stopped.
Bidirectional text-clipboard operations are supported.
Telepathy contacts with rfb capability shown inside main window, with an option to share desktop.
Desktop sharing password visible in main window, with option to change it.
Unattended Access allowed with separate password.
Fixed bugs in libvncserver responsible for KRFB crashing.
Krfb now runs as KUniqueApplication.
All changes are present in the following clone of KRFB
Repository
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http://quickgit.kde.org/?p=clones%2Fkrfb%2Famandeepsingh%2Fkrfb-sok.git</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>krfb/invitationsrfbclient.cpp <span style="color: grey">(bd5cff8)</span></li>
<li>krfb/invitationsrfbserver.cpp <span style="color: grey">(47ed934)</span></li>
<li>krfb/mainwindow.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>krfb/rfbclient.h <span style="color: grey">(7b46d3f)</span></li>
<li>krfb/rfbclient.cpp <span style="color: grey">(9ab16eb)</span></li>
<li>krfb/rfbserver.cpp <span style="color: grey">(cd5d6c0)</span></li>
<li>krfb/tubesrfbserver.cpp <span style="color: grey">(575c3cd)</span></li>
<li>krfb/ui/mainwidget.ui <span style="color: grey">(PRE-CREATION)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/115499/diff/" style="margin-left: 3em;">View Diff</a></p>
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