Public key authentication in SFTP connector

[zregvart]

This is a...

[x] Feature request
[ ] Regression (a behavior that used to work and stopped working in a new release)
[ ] Bug report  
[ ] Documentation issue or request

The problem

For SFTP we support username and password authentication, we
should also support public key authentication.

Expected behavior

Specify SSH private key instead of username and password to establish a connection to SFTP server.

Screenshot

Request and Response Data

API Endpoints and Schemas

Tasks involved / Steps to Reproduce

[paoloantinori]

First step is to verify the functionality exists at Camel level

[oscerd]

@zregvart do you mean by using the keyPair parameter in Camel-sftp component?

[oscerd]

Or using privateKey as bytes as camel-sftp provides?

[zregvart]

@oscerd I'm thinking of privateKey parameter for camel-sftp, we probably need a connector property that will accept the openssh format key and convert it to byte[] for the ftp2 component. I'd expect the users to provide the key in a text box by pasting something like:

-----BEGIN OPENSSH PRIVATE KEY-----
...
-----END OPENSSH PRIVATE KEY-----

[oscerd]

Understood, we'll need to set the preferredAuthentications in that case with public_key as first choice.

[oscerd]

@paoloantinori @heiko-braun I don't think this will go in this Sprint, I'll take care of this for the next one. Totally forget about it :-|

[oscerd]

Didn't have the time for this enhancement. Too much stuff also in sustaining team.