Flex :: How To Implement HTTP Tunneling
Jul 26, 2009
I've written a Flash (Flex) client connecting to a back-end server to exchange data. I've also written my server from scratch, and it serves two purposes:
(1) Web (HTTP) Server- By default listens on port 80
(2) Socket/Application- Server - By default listens on port 443
Just FYI, both servers run in the same process space, for convenience reasons. They are not expected to handle massive loads, so I'm fine with that. As soon as the Flash client is served to the browser from the HTTP socket, the client attempts to open an XMLSocket to the Socket/Application server. I now want to implement HTTP tunneling, so that my client can connect to the Application server even if the user is behind a firewall. I do not want any external servers involved (proxies etc.) - simply use the servers I already have.
My questions:
(1) Is it better to use port 443 for that? (does it better fool firewalls?)
(2) As far as I can see, what I am required to do, is just ensure that my actual application data is simply encapsulated in an HTTP structure (preceded by a dummy HTTP header), both from the client and server sides. Is that so or am I missing anything here?
(3) Do I need to keep hiding/encapsulating my data every message I send through the socket, or can I just encapsulate the first message when opening the connection?
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Jun 15, 2009
I have read some forums posted in here and also searched the web extensively but cannot find a clear answer or get HTTP tunneling to work with Flash Media Server 3.
Q1: Can Flash Media Server 3 be configured for RTMP and HTTP tunneling to work? The reason I need to know if this will work is due to more and more clients are reporting that videos are not playing for them and I have determined that these clients are sitting behind a firewall that has port 1935 blocked. So I would like to configure the FLV playback control to try to stream the file over RTMP and if that does not work, use HTTP.
Here is my asctionscript that I have tried to get this to work, but it does not. Some other notes are, the .FLV files live in this folder: D:AdobeFlash Media Server applicationsvodmedia The videos are recorded and then converted into .FLV files and loaded into this folder. The ultimate solution is I use a FLVPlayback control and pass the location and .FLV file name on the query string "Details.aspx?VIDEO=rtmp://216.203.12.15/vod/flv". I have pasted the object code * to show this example below the asctionscript.
[Code]...
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[Code]...
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[code]....
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