[jcifs] SMB URL

Allen, Michael B (RSCH) Michael_B_Allen at ml.com
Wed Jul 10 09:31:37 EST 2002

If I do 

  f1 = new SmbFile( "smb://foo%2Ebar.what.snu.com" )

and I call toString() for display purposes in a status bar or something I might get:


But internally if I create a new object like:

  f2 = new SmbFile( f1, "share" );

and print that I correctly get:


then I call getPath() and should get:


So far so good. Seems conceptually easy enough. But if I had inadvertently used foo.bar.what.snu.com
to build my new SmbFile object or a user accedentally used new SmbFile( f1.toString(), "share" ) the
new url would represent a host foo with scope bar.what.snu.com which is not correct. There are surely
other pitfalls where this can occur. In general the escape is easily lost. It's not a robust technique.

> -----Original Message-----
> From:	Christopher R. Hertel [SMTP:crh at ubiqx.mn.org]
> Sent:	Tuesday, July 09, 2002 7:17 PM
> To:	Allen, Michael B (RSCH)
> Cc:	jcifs at samba.org
> Subject:	Re: [jcifs] SMB URL
> On Tue, Jul 09, 2002 at 06:55:48PM -0400, Allen, Michael B (RSCH) wrote:
> :
> > > Okay, so I understand that bit of it.  What I don't understand is how that
> > > pushes complexity out into the semantic resolution.
> > > 
> >       That's not what I said. You're pushing the complexity into the
> >       *serialization routines*. The problem is that your escaping technique
> >       is not robust to frequent reserialization. If you export an unescaped
> >       server name it may not represent the target anymore. Implementors
> >       would have to take great care not to export an unescaped URL
> >       *ever*. This has nothing to do with specific fields
> > 	or how you parse the URL.
> Alright, I need more clue on what is being serialized and when.  I am 
> obviously without clue.
> Chris -)-----
> -- 
> Samba Team -- http://www.samba.org/     -)-----   Christopher R. Hertel
> jCIFS Team -- http://jcifs.samba.org/   -)-----   ubiqx development, uninq.
> ubiqx Team -- http://www.ubiqx.org/     -)-----   crh at ubiqx.mn.org
> OnLineBook -- http://ubiqx.org/cifs/    -)-----   crh at ubiqx.org

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