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https://issues.apache.org/jira/browse/NET-426?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15284248#comment-15284248
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Ralf Hauser commented on NET-426:
---------------------------------
with commons-net 3.3 it only worked, once I
http://stackoverflow.com/questions/32398754/how-to-connect-to-ftps-server-with-data-connection-using-same-tls-session
had problems to get preferences in the cyberduck example, but if I set always
to "true" got it working.
Even better if you store the session not only under the key based on
socket.getInetAddress().getHostName()
but also a second time under
socket.getInetAddress().getHostAddress()
> FTPS: Hook to customize _openDataConnection_ SSLSocket before
> startHandshake() is called
> ----------------------------------------------------------------------------------------
>
> Key: NET-426
> URL: https://issues.apache.org/jira/browse/NET-426
> Project: Commons Net
> Issue Type: Bug
> Components: FTP
> Affects Versions: 3.0.1
> Reporter: Ketan
> Fix For: 3.1, 3.2
>
> Attachments: FTPSClient.patch, FTPSClient.patch
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> Currently in FTPSClient class, there is protected _openDataConnection_
> method, which create SSLSocket for data connection. But there is no hook to
> customize the SSLSocket before startHandshake is called.
> I need to know the remote host ip and port, which i can get for socket, and
> do custom setup to try to reuse SSL sessions from control connection socket.
> Since the socket factory uses createSocket() method, I can't just use custom
> socket factory since I don't know the host and port. I can't just override
> the _openDataConnection_() method in my class since that will call the
> startHandshake().
> So it would be nice if you can provide hook, much like _connectAction_(), but
> for data connection before handshake is started. You can pass the new data
> socket as argument to this hook method so one can get remote host and port
> information.
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