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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 5701] New: - Bad URI absolutizing
Date Sat, 05 Jan 2002 12:50:44 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=5701

Bad URI absolutizing

           Summary: Bad URI absolutizing
           Product: XalanJ2
           Version: 2.2.x
          Platform: All
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: org.apache.xml.utils
        AssignedTo: xalan-dev@xml.apache.org
        ReportedBy: gregor.karlinger@gmx.net


The methods getAbsoluteURI(String) and getAbsoluteURI(String, String)
are resolving relative URIs in a way which is not conforming with
section 5.2 of RFC 2396. Below are the interesting snippets of the
code:

133:    else if (url.startsWith("file:") && url.charAt(5) != '/') 
134:    {
135:      url = getAbsoluteURIFromRelative(url.substring(5));
136:    }

156:    if(urlString.startsWith("file:") && urlString.charAt(5) != '/') 
157:    {
158:      needToResolve = true;
159:    }

Section 5.2, bullet 3) of RFC2396 states:

  "3) If the scheme component is defined, indicating that the reference
      starts with a scheme name, then the reference is interpreted as an
      absolute URI and we are done. [...]"

So, if the candidate URI starts with "file:" it must be considered absolute,
and there is no need to check whether the path component starts with "/" or
not.

The problem with the current code is that a Windows file URI like
  file:c:/temp/foo.txt
is absolutized, although it is already an absolute URI with an opaque path
component. With a base URI of e. g. file:c:/base/bar.txt this results in
  file:c:/base/c:/temp/foo.txt

/Gregor

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