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https://issues.apache.org/jira/browse/CAMEL-5574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13559716#comment-13559716
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Claus Ibsen commented on CAMEL-5574:
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I agree the stepwise and directory traversal could be better.
Though its problematic when people use absolute or relative starting
directories as well.
Also the logic for changing to parent directory could possible in sftp
operations be using ".." which we would assume should be supported by the ftp
client as a valid input to change dir command.
> camel-sftp's stepwise behavior to walk up and down relatively to avoid
> potential traversal issues
> -------------------------------------------------------------------------------------------------
>
> Key: CAMEL-5574
> URL: https://issues.apache.org/jira/browse/CAMEL-5574
> Project: Camel
> Issue Type: Bug
> Components: camel-ftp
> Affects Versions: 2.10.1
> Reporter: Aki Yoshida
> Assignee: Willem Jiang
> Fix For: 2.9.4, 2.10.2, 2.11.0
>
> Attachments: trunk-camel-ftp.diff
>
>
> I am having a directory traversal problem using the stepwise mode of
> camel-sftp at the producer side. Basically, it can walk down the path from
> the starting directory to the walking directory, but it cannot go back
> correctly to the original starting directly. The server is SSH-2.0-Cleo
> VLProxy/3.0.1 SSH FTP server.
> I saw a related JIRA issue CAMEL-3309 that describes some issues in the
> stepwise traversal and some background to this related problem.
> My question is on the part that changes the working directory back to the
> original starting folder. I am wondering why we are using stepwise traversal
> from the ancestor directory towards the starting child directory, instead of
> moving upwards relatively from the working directory back to the starting
> directory. This reverse traversal does not require accessing the ancestry
> path above the staring directory (hence, not affected by the accessing
> problem). And in fact, I think this reverse stepwise traversal seems more
> natural order than doing stepwise traversal each time from top down. How do
> you think?
> I have made a change that implements this reverse stepwise traversal in
> SftpOperations and also made a few minor improvement changes.
> This changed version passes all the existing tests and works also against the
> above server.
> I am attaching a patch file for this change. I would appreciate if you can
> comment on it.
> Thanks.
> regards, aki
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