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https://issues.apache.org/jira/browse/VFS-398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14906967#comment-14906967
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Simon Legner commented on VFS-398:
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[~markjleonard], thank you for the clarification.
Consider a file {{/foo:bar:baz/foo:bar}} relative to FTP root and calling
{{VFS.getManager().resolveFile("ftp://localhost:2121/foo:bar:baz";).getChildren()}}.
In
{{org.apache.commons.vfs2.impl.DefaultFileSystemManager#resolveName(org.apache.commons.vfs2.FileName,
java.lang.String, org.apache.commons.vfs2.NameScope)}} from the method
parameter {{name}} (which is considered relative to the root) a scheme is
extracted. This yields {{foo}} as scheme and subsequent test {{(scheme == null
&& buffer.charAt(0) != FileName.SEPARATOR_CHAR)}} is negative.
The scheme extraction for the relative {{name}} has been integrated in revision
780730. I wonder why.
> 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
>
> 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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