[jira] [Created] (GUACAMOLE-303) Allow SFTP root directory to be configured

["Michael Jumper (JIRA)" <ji...@apache.org>]

Michael Jumper created GUACAMOLE-303:
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             Summary: Allow SFTP root directory to be configured
                 Key: GUACAMOLE-303
                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-303
             Project: Guacamole
          Issue Type: New Feature
          Components: RDP, SSH, VNC
            Reporter: Michael Jumper
            Priority: Minor


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*The description of this issue was copied from [GUAC-1352|https://glyptodon.org/jira/browse/GUAC-1352], an issue in the JIRA instance used by the Guacamole project prior to its acceptance into the Apache Incubator.*

Comments, attachments, related issues, and history from prior to acceptance *have not been copied* and can be found instead at the original issue.
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Guacamole currently assumes that the root directory of the SFTP server is "/", and that this directory will be readable. In practice, this is not guaranteed to be the case. In addition to variation in file permissions, SFTP servers may not actually have a directory at "/". Though the standard [requires that absolute paths begin with a "/" (and that the path separator is "/")|https://tools.ietf.org/html/draft-ietf-secsh-filexfer-02#section-6.2], it does _not_ require that "/" be a real directory nor that it be readable.

In the case of a platform which lacks a root directory entirely (such as Windows or certain routers), this means that you end up with legitimate paths like "/C:/some/directory/" even though "/" does not exist and thus cannot be listed.

For the sake of supporting such platforms, and for the case where SFTP access should be restricted to a specific directory and its subdirectories, the root directory should be configurable.



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