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GoogleTalk on PocketPC
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Sean 2005-12-12, 15:12 #1
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Subject: GoogleTalk on PocketPC
Hi,

I am trying to use the library to create a GoogleTalk client on PocketPC. I have followed the example and used the google connection info. However I get an error in the connection XML - Connection must be encrypted.
The SSL connections are not setable in PPC. Can anyone suggest a reason why this might be?

Sean.
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Alex 2005-12-12, 16:35 #2
Member since Feb 2003 · 4449 posts · Location: Germany
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Hello Sean,

it looks like Google allows only encrypted connections now. Encrypted means a connection over SSL or StartTLS. The library supports no SSL and TLS for PPC and Smartphone. Because there is no SSL available in the compact framework yet. And i don't know a open source SSL library that i could use for the CF. The only SSL library i have seen yet for the CF is the IPWorks SSL library at http://www.nsoftware.com/ipworks/ssl/technologie…?sku=IS…
Its commercial and i didnt test it yet. Im also not sure about the licence and redistribution.
But i didn't take a look at it yet because i don't like closed source projects.

Alex
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Sean 2005-12-12, 16:40 #3
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HI Alex,

OK I will have to investigate the IPWorks lib. Can you suggest an alternative I could use instead of google talk so I can use your library?

Thanks,

Sean.
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Alex 2005-12-12, 16:50 #4
Member since Feb 2003 · 4449 posts · Location: Germany
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Hello Sean,

there are tons of public jabber/xmpp servers available. Here is a small list:
http://www.jabber.org/network/.

You can also install your own server. For this i would suggest JiveMessenger or ejabberd. They are both open source, free and easy to install.

If you have investigated IPWorks could you please post your results here? It should be very easy to add SSL support with this lib to agsXMPP.

Alex
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Sean 2005-12-19, 11:33 #5
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Hi Alex,

Can you let me know what work would be required to implement SSL in the library for Pocket PC. I am in the process of producing my own SSL lib for another app and if you can let me know exactly what your lib requires then I will add it in.

Thanks,

Sean.
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Alex 2005-12-19, 12:23 #6
Member since Feb 2003 · 4449 posts · Location: Germany
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Hi Sean,

all SSL code is on ClientSocket.cs in the agsXMPP.net namespace.
If somebody knows a SSL library i would really like to add it.
But i couldn't find a free SSL library yet. And i don't like commercial libraries that ship without source code.

If you write your own lib and need some help or testers i would like to help you.

I tried to port Mono.Security myself. But i never finished it. I think it would be a good start to take Mono.Seurity and port it to CF. There is also lots of new crypto stuff in the OpenNetCF now.

Another possibility is to port OpenSSL and use it with a wrapper (PInvoke). But i would prefer Mono.Security, because it works very well.

Alex
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kyokosaika 2005-12-20, 02:12 #7
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I have the same problem! did you resolve ite?
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Alex 2005-12-20, 11:46 #8
Member since Feb 2003 · 4449 posts · Location: Germany
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to solve this problem a SSL library for PPC and Smartphone is needed.

Alex
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Sean 2005-12-21, 17:13 #9
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Hi Alex,

Just to give you an update on my progress, I have managed to Port Mono to the Compact framework but I have not yet been able to test it. I have compatability problems between my new lib which is net cf v2 and agsxmpp which is version 1. Do you have the source as a version 2 implementation? If not I will begin updating the code.

Thanks,

Sean.
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Alex 2005-12-21, 17:27 #10
Member since Feb 2003 · 4449 posts · Location: Germany
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Hi Sean,

this are good news.
Yes i switched to .NET 2.0 and VS .NET 2005 a while ago. The latest code is in SVN.  If you prefer Email or FTP just send me a mail or message.

Alex
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Sean 2005-12-22, 09:49 #11
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I've done an SVN Update on the library and the version of the Framework is still 1 in Project Properties. Do you have a copy of the project which is version 2?

Sean.
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Alex 2005-12-22, 10:17 #12
Member since Feb 2003 · 4449 posts · Location: Germany
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oh sorry,

i thought this wizard also updates the framework version too. But i didnt.
I make a CF2.0 version and upload it.
What i have seen for now is that there is more crypto stuff in CF2.0. I think i must only remove some wrapper classes that were needed before and it should work.

Alex
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Sean 2005-12-22, 10:20 #13
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I have managed to update the Framework version myself. I had to change 2 lines of code and remove 3 files from the protocol\x\data directory. I have managed to get a not supported exception in Mono so I will continue investigating, but I think I may be on the right track. I'll keep you posted.

Sean.
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Alex 2005-12-22, 21:18 #14
Member since Feb 2003 · 4449 posts · Location: Germany
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Hi Sean,

i added project files for PPC .NET 2.0, and did lots of testing. I had no problems. The code is uploaded to svn.

Alex
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Sean 2005-12-23, 09:18 #15
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Alex,

I am having some problems, I send the <Stream:Stream xml to the server after I get the proceed string from the server. Once I sen the stream XML I don't get a response. I have stepped through the code and found that there is  a call to BaseSocket.send(string) which is empty. Should there be something here?

Thanks,

Sean.
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