Strange security sandbox error

Hi,
I have a strange error when debugging my projects on localhost.
Here what i get (sorry it's french, I tried to translate it below) :
Erreur :Impossible de charger un fichier de régulation à partir de xmlsocket://127.0.0.1:5800
Erreur :La demande de la ressource à xmlsocket://127.0.0.1:5800 par le demandeur à http://localhost:8888/XXX/bin-debug/XXX.swf a échoué car le serveur est inatteignable.
*** Violation de la sécurité Sandbox***
Interruption de la connexion à 127.0.0.1:5800 - opération interdite depuis http://localhost:8888/XXX/bin-debug/XXX.swf
Translation:
Error: Unable to load a policy file from xmlsocket://127.0.0.1:5800
Error: The request of the resource at xmlsocket://127.0.0.1:5800 by http://localhost:8888/XXX/bin-debug/XXX.swf has failed because the server is unreachable.
*** Sandbox security violation***
Closing connection at 127.0.0.1:5800 - forbidden operation from http://localhost:8888/XXX/bin-debug/XXX.swf
This error loops indefinitely as long as I debug my project, and therefore, my Console is unusable !
Any idea about resolving this ?
Thank you

up ?

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The bug of 'SecurityError: Error #2123: Security sandbox violation: BitmapData.draw: file:///xxx/xxx.swf cannot access rtmfp://fms4.acrobat.com/cocomo/na2-sdk-xxx/xxx. No policy files granted access.' was first reported in lccs forum over a year ago:
http://forums.adobe.com/message/2803074
But the bug is still around. The bug can be generated by calling BitmapData.draw() on a flash.media.Video object which is attached to a p2p stream. It looks like the solution is to have the publisher to call:
send("|RtmpSampleAccess", true, true)
on the NetStream object _before_ the subscriber calls NetStream.play(), in order to give the permission to subscribers for audio and video streams.
In lccs library, the above permission authorisation happens in WebcamPublisher:
protected function onNetStatus(p_evt:NetStatusEvent):void
if (p_evt.info.code=="NetStream.Connect.Success") {
setTimeout(sendSnapShotPermission, 500);
_stream.send("|RtmpSampleAccess", true, true);
protected function sendSnapShotPermission():void
_stream.send("|RtmpSampleAccess", true, true);
but it doesn't help the problem. In fact, it is not clear to me when this 'snap shot permission' is sent to the subscriber.
One more note: This is not a critisism for the lccs development quality, but rather a question on how ready lccs is for production use. After encountering this bug, I had to go through the lccs code (the open source parts), and found out that the library is not really written, well, carefully, and it is full of temporary quick-n-dirty fixes.
For instance in the above example, sendSnapShotPermission() is called after 500 milliseconds, probably to allow something to happen before calling the method, but how can you be sure that it will happen in 500 milliseconds? Probably,an event listener should have been used. Immediately in the next line, we see:
_stream.send("|RtmpSampleAccess", true, true);
which is a duplicate of sendSnapShotPermission(). many examples like this can be found throughout the library.
Aureliano

Hi Nigel,
Two questions:
1. When the publisher sends the access permission to the subcriber by:
netStream.send("|RtmpSampleAccess", true, true)
, on the subscriber side, what event or function can handle the guaranteed receipt of the access permission? Currently it is possible to draw the incoming stream video upon receiving NetStream.Play.Star and waiting for 5 seconds or so:
public class MyWebcamSubscriber extends WebcamSubscriber {
override protected function layoutCameraStreams():void
// trying the event listener seems to work here.
_streamManager.addEventListener(NetStatusEvent.NET_STATUS, onNetStatus);
override protected function onNetStatus(e:NetStatusEvent):void
super.onNetStatus(e);
case "NetStream.Play.Start":
setTimeout(function():void {
// draw the video from the incoming stream here.
}, 5000);
The questions is, which event can let the subscriber know that it has the access permission to the video stream?
2. In WebcamPublisher, why is that the access permission is sent 3 times?
a. Once on receiving NetStream.Connect.Success with 0.5 second delay, as in below.
b. Once immediately upon receiving NetStream.Connect.Success, as in below.
protected function onNetStatus(p_evt:NetStatusEvent):void
if (p_evt.info.code=="NetStream.Connect.Success") {
setTimeout(sendSnapShotPermission, 500);
_stream.send("|RtmpSampleAccess", true, true);
protected function sendSnapShotPermission():void
_stream.send("|RtmpSampleAccess", true, true);
c. Once in onConnectionTypeChange() with 2 seconds delay:
protected function onConnectionTypeChange(p_evt:StreamEvent):void
if ( _streamManager.isP2P) {
_stream= new NetStream(_connectSession.sessionInternals.session_internal::connection as NetConnection,NetStream.DIRECT_CONNECTIONS);
setTimeout(sendSnapShotPermission, 2000);

Day 1 Ex. 3 Help! Error: Security Sandbox Violation

When I run the solution code in Flex Builder, I get a ***
Security Sandbox Violation *** message when debugging. Although,
when I changed my default browser to Safari, everything seemed to
work fine. Also, when I go directly to the bin-debug folder and
opened the "AdobeODT.html" file, the data from the xml file loads
properly. I played around with the "crossdomain.xml" solutions I've
been finding on the net, but couldn't get it to work. Anyone else
running into this problem? Any help would be greatly appreciated.
Thanks.
Running:
Mac OS X 10.5.6
Flex Builder 3
FireFox (current)
Safari (current)
Opera (current)

Hi everybody who is experiencing this same problem. A little
research online directed me to the following page
http://www.jetbrains.net/jira/browse/IDEA-21996.
Which contains a good explanation why this is happening:
quote:
A SWF file can access one type of external resource only,
either local or over a network; it cannot access both types. You
determine the type of access allowed by the SWF file by using the
use-network flag when you compile your application. When
use-network flag is set to false, you can access resources in the
local filesystem, but not over the network. The default value is
true, which allows you to access resources over the network, but
not in the local filesystem.
So a sollution for this problem is:
quote:
you may specify the following string in "Additional compiler
options" at "Flex Compiler Settings" tab: -use-network=false
Hope this helps all of you experiencing this problem.

Strange security sandbox error

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