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https://issues.apache.org/jira/browse/VFS-440?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary Gregory updated VFS-440:
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Attachment: sftp-stream-proxy-v4.diff
Benjamin,
I've started a code review and made a couple of changes. See
sftp-stream-proxy-v4.diff. But I got stuck on the questions below.
Questions:
1. SftpStreamProxy keeps a session that is never initialized but is used in
close(), which looks like it will cause an NPE. Am I missing something?
2. SftpStreamProxy used to keep a JSch but did not use it, so I removed it. Did
you intend to use it?
Gary
> [SFTP] Stream (e.g. netcat) proxy for Sftp file system (aka ProxyCommand)
> -------------------------------------------------------------------------
>
> Key: VFS-440
> URL: https://issues.apache.org/jira/browse/VFS-440
> Project: Commons VFS
> Issue Type: Improvement
> Reporter: Benjamin Piwowarski
> Priority: Minor
> Labels: proxy, sftp
> Attachments: sftp-stream-proxy.diff, sftp-stream-proxy-v2.diff,
> sftp-stream-proxy-v3.diff, sftp-stream-proxy-v4.diff
>
>
> What I propose is to add the possibility to connect to a remote SSH server
> through an SSH connection stream (instead of an HTTP or SOCKS proxy). See for
> instance
> http://backdrift.org/transparent-proxy-with-ssh
> for a use case.
> This simulates a ProxyCommand where the command is run on a SSH host.
> The patch also contains a test for the new functionality.
> Example of use (with the netcat command nc -q 0 HOSTNAME PORT)
> {code:java}
> builder.setProxyType(opts, SftpFileSystemConfigBuilder.PROXY_STREAM);
> builder.setProxyCommand(opts, SftpStreamProxy.NETCAT_COMMAND);
> builder.setProxyHost(opts, "gate.way.host");
> builder.setProxyPort(opts, 22);
> builder.setProxyOptions(opts, proxyOptions);
> {code}
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