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From "Vincent Bonamy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (VFS-398) FtpFileObject.getChildren() fails when a folder contains a file with a colon in the name
Date Wed, 21 Nov 2012 19:19:58 GMT

    [ https://issues.apache.org/jira/browse/VFS-398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13502213#comment-13502213
] 

Vincent Bonamy commented on VFS-398:
------------------------------------

Hello,

As Mark Leonard said, the goal of the commit 780730 is not very clear for me too.
And this issue broke my app so that I had to fork commons-vfs2-project-2.0

You can see the patch/diff I make on github here : 
https://github.com/vbonamy/commons-vfs2-project-2.0/commit/43de7e38a6a27f846c034eb3b824edd2e3b0fe12

It would be nice if this issue can find a resolution. Maybe my patch can be applied simply
?

Thanks,
Vincent.


                
> FtpFileObject.getChildren() fails when a folder contains a file with a colon in the name
> ----------------------------------------------------------------------------------------
>
>                 Key: VFS-398
>                 URL: https://issues.apache.org/jira/browse/VFS-398
>             Project: Commons VFS
>          Issue Type: Bug
>    Affects Versions: 2.0
>         Environment: Connecting via FTP to a host running SunOS 5.10
>            Reporter: Mark Leonard
>            Priority: Blocker
>             Fix For: 2.1
>
>
> In line 767 of DefaultFileSystemManager.java the UriParser's extractScheme() method is
called:
>         String scheme = UriParser.extractScheme(buffer.toString());
> This code was added in revision 780730
> http://svn.apache.org/viewvc?view=revision&revision=780730
> It is not clear to me why this change was made.
> For the FTP provider, buffer contains a plain file name (i.e. without a path and definitely
not in URI form)
> A colon is a valid character for a file name.
> However a colon will be interpreted as a URI scheme name.
> This causes an exception when the resolved path is checked using AbstractFileName.checkName()
> Sample code:
> FileObject fo = VFS.getManager().resolveFile("ftp://user:pass@host/some/path/some.file");
> fo.getParent().getChildren();
> If /some/path/ contains a child such as PREFIX:SUFFIX then an exception is thrown:
> Exception in thread "main" org.apache.commons.vfs2.FileSystemException: Invalid descendent
file name "PREFIX:SUFFIX".
> 	at org.apache.commons.vfs2.impl.DefaultFileSystemManager.resolveName(DefaultFileSystemManager.java:791)
> 	at org.apache.commons.vfs2.provider.AbstractFileObject.getChildren(AbstractFileObject.java:710)
> 	at org.apache.commons.vfs2.provider.ftp.FtpFileObject.getChildren(FtpFileObject.java:420)
> Therefore calling code is unable to list the children of the specified folder.

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