In Safari, local cursor rendering is corrupt. In firefox 3.6.10, local
cursor rendering causes a segfault. Probable that the .cur format is
not 100% compliant (even though it works in Chrome and firefox 3.5 and
firefox 4.0). So just disable it by default until I can figure out how
to address the problems.
Addresses this issue:
http://github.com/kanaka/noVNC/issues#issue/14
Safari starts with '\x80' rather than '\x16' like Chrome and Firefox
and having PROTOCOL_TLSv1 doesn't work with Safari. But just removing
the ssl_version allows things to work with Safari wss:// connections.
Also, if the handshake (after SSL wrapping) is null then terminate the
connection. This probably means the certificate was refused by the
client. Unfortunately Safari (the version I have) doesn't cleanly
shutdown WebSockets connections until the page is reloaded (even if
the object is no longer referenced).
Add a new state 'disconnect' to reflect that we are not truly
'disconnected' until we get an onclose event. Add a disconnect timer
to match.
Handle disconnected cleanup better in updateState(). Anytime we enter
in a disconnect/disconnected state, make sure all running state is
cleaned up (WebSocket, timers, canvas).
Filed this issue for this bug:
http://github.com/gimite/web-socket-js/issues/issue/37
Right now the close() call only calls __flash.close() if readyState is OPEN.
But it should really call close any time that readyState is not CLOSED or
CLOSING.
The case I ran into is when I want to do the following:
1. make a test connection
2. tell the server to setup for a connection
3. connect again
I call close on the test connection, but since it is ignored when CONNECTING,
it eventually times out with a error. But by that time I have already issued a
new connection, it causes the new connection to fail. close() should cancel
CONNECTING state too.
Filed this bug about this issue:
http://github.com/gimite/web-socket-js/issues#issue/35
To work around the flash "recursive call" problem, WebSocket.as has
the onclose event disabled in the close() call and the javascript half
of the close() call does the onclose() call instead. This is fine, but
it needs to be asynchronous to act more like what happens with
a normal WebSockets object. The current behavior is that the onclose()
method is called inline (synchronously) when the close() is called and
this inconsistency make state handling more difficult.
Add -m, --multiprocess option which forks a handler for each
connection allowing multiple connections to the same target using the
same proxy instance.
Cleaned up the output of the handler process. Each process' output is
prefixed with an ordinal value.
Changed both the C and python versions of the proxy.
I've decided that debug/develop/extra features will just be in the
python version of the proxy. The C version (and other versions) will
just have the core functionality (unless someone wants to support it).
web-socket-js now has all the functionality and fixes needed for noVNC
so remove the include/as3crypto_patched directory and the
include/web-socket-js/flash-src directory (i.e. the sources for
web-socket-js). This cleans up almost 3K from the include/ directory.
Update to web-socket-js build based on upstream (gimite/web-socket-js)
9e766377188.
The rfb variable wasn't available at the point settingsDisabled() was
being called since it was called inline with RFB() initialization. To
solve this we pass the updateState rfb variable so that the canvas can
be queried for setting the cursor_uri value.
When the documement/window is scrolled, the onMouseDisable routine was
not properly calculating the position to test whether to ignore the
event or not.
Generally, most servers send hextile updates as single updates
containing many rects. Some servers send hextile updates as many small
framebuffer updates with a few rects each (such as QEMU). This latter
cases revealed that shifting off the beginning of the receive queue
(which happens after each hextile FBU) performs poorly.
This change switches to using an indexed receive queue (instead of
actually shifting off the array). When the receive queue has grown to
a certain size, then it is compacted all at once.
The code is not as clean, but this change results in more than 2X
speedup under Chrome for the pessimal case and 10-20% in firefox.
Apparently there are versions of UltraVNC that report version 3.6.
This is not a legal version according to the spec, but we'll just
force version 3.3 if we receive it. Thanks to Larry Rowe for the info.
Turns out when Windows is running in QEMU and a window scroll happens,
there are lots of little hextile rects sent. This is slow in noVNC.
- Some recording/playback improvement.
- Add test harness to drive playback of recordings.
- By pulling off the rect header in one chunk we get a 3X speedup in
Chrome and a 20% speedup in firefox (specifically for the scroll
test).
- Also, get rid of some noise from creating timers for handle_message.
Check to make sure there isn't already a pending timer first.
This is very usefull when you need to open a new window (with a new document) from javascript,
without having to reload the script.js.
(cherry picked from commit 8ded53c1de06d01e50d58543c19e73926f0fbbd4)
Signed-off-by: Joel Martin <github@martintribe.org>
New API:
To use the RFB object, you now must instantiate it (this allows more
than one instance of it on the same page).
rfb = new RFB(settings);
The 'settings' variable is a namespace that contains initial default
settings. These can also be set and read using 'rfb.set_FOO()' and
'rfb.get_FOO()' where FOO is the setting name. The current settings
are (and defaults) are:
- target: the DOM Canvas element to use ('VNC_canvas').
- encrypt: whether to encrypt the connection (false)
- true_color: true_color or palette (true)
- b64encode: base64 encode the WebSockets data (true)
- local_cursor: use local cursor rendering (true if supported)
- connectTimeout: milliseconds to wait for connect (2000)
- updateState: callback when RFB state changes (none)
- clipboardReceive: callback when clipboard data received (none)
The parameters to the updateState callback have also changed. The
function spec is now updateState(rfb, state, oldstate, msg):
- rfb: the RFB object that this state change is for.
- state: the new state
- oldstate: the previous state
- msg: a message associate with the state (not always set).
The clipboardReceive spec is clipboardReceive(rfb, text):
- rfb: the RFB object that this text is from.
- text: the clipboard text received.
Changes:
- The RFB and Canvas namespaces are now more proper objects. Private
implementation is no longer exposed and the public API has been made
explicit. Also, instantiation allows more than one VNC connection
on the same page (to complete this, DefaultControls will also need
this same refactoring).
- Added 'none' logging level.
- Removed automatic stylesheet selection workaround in util.js and
move it to defaultcontrols so that it doesn't interfere with
intergration.
- Also, some major JSLinting.
- Fix input, canvas, and cursor tests to work with new model.
If cursor Data URI scheme detection threw an exception, it would cause
canvas initialization to fail. cursor detection exceptions should just
disable local cursor change support, not cause canvas init to fail.
Uses the CSS "scale()" operation. The main problem is that the DOM
container is not rescaled, only the size of the displayed content
within it so there will need to be some sort of mechanism to handle
this better so other elements reflow to the new size. Or it might just
not work and be removed later. The zoom property seems to do the right
behavior, but it's not widely supported. Worth exploring though.
After each complete framebufferUpdate, set a short timer to continue
processing the receive queue. This gives other events a chance to
fire. Especially important when noVNC is integrated into another
website.
Joel Martin
primalmotion