Dear Oleksandr,
And one more thing, as I understood, this code work only with recent version of libssh. We should think, how can we make it available for distributions like squeeze. Such distributions should be also supported by X2Go Client. I have sent a bug report to Debian to include the missing patch. http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=688700
I have a one notice. In your case HTTP protocol is used for proxy. It is mean, that user name and password will be transmitted unencrypted. It can follow to security issues. Can you think about HTTPS support? This should be not very difficult, as Qt already supports SSL. You can check code of HttpBrockerClient class in X2Go Client, which can use HTTPS connections.
QNetworkProxy relies on QAuthenticator.
QAuthenticator supports the following authentication methods:
- Basic
- NTLM version 2
- Digest-MD5
Which one is used depends on the setup of the proxy server. Squid has plugin for NTLM.
NTLM and Digest-MD5 should be acceptable inside a private network.
After the connection is established all further traffic will be SSH encrypted.
I am not aware of proxies being contacted over https.
An interesting feature might be QNetworkProxy::DefaultProxy which can use the system settings to determine the proxy server.
Best regards
Heinrich Schuchardt