[NIFI-7835] SFTP Processors not working with authenticated SOCKS proxy

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.12.0, 1.11.4, 1.13.0, 1.12.1, 1.14.0, 1.13.1, 1.13.2, 1.15.0
• Fix Version/s: 1.16.0, 1.15.3
• Environment: CentOS 7, Java 8 and 11, standalone Nifi
• Assignee: David Handermann
• Reporter: Wiktor Kubicki
• Created: 22/Sep/20 16:35
• Updated: 12/Jan/22 20:01
• Resolved: 12/Jan/22 15:51

Description

Hello,

we tried use socks proxy configuration (with authorization) for listSFTP/fetchSFTP/getSFTP using processor configuration or Proxy Configuration Service. Each time we has got Getting java.net.SocketException: Malformed. 

We did tcp dump and saw, that the user/password is not provided - user is same as system user rather than this one from configuration.

I've easly recreated issue on clean CentOS with java 8 and 11. Same problem was on NiFi 1.11.4 and 1.12.0.

I think the problem is due of using sshj, but can be wrong. Very similar issue is https://issues.apache.org/jira/browse/NIFI-7749 - probably with the same cause.

 

My workaround for sftp is using fuse-sftp and mount remote server as local share.

 

Issue Links

• relates to: NIFI-7749 ListSFTP Failure using Authenticated HTTPS Proxy
• links to: GitHub Pull Request #5624