[jira] [Created] (FELIX-3987) ResourceServlet sets content-length Header too late

["Kaspar von Gunten (JIRA)" <ji...@apache.org>]

Kaspar von Gunten created FELIX-3987:
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             Summary: ResourceServlet sets content-length Header too late
                 Key: FELIX-3987
                 URL: https://issues.apache.org/jira/browse/FELIX-3987
             Project: Felix
          Issue Type: Bug
          Components: HTTP Service
    Affects Versions: http-2.2.0
            Reporter: Kaspar von Gunten
         Attachments: ResourceServlet.patch

The ResourceServlet.handle(..) implementation sets content-type and last-modified headers, then goes on and copies the specified resource's content onto the response's output stream. When it is done, it sets the content-length header to the # of written bytes.

This is just wrong, because all headers should be present before content is written. The implementation gets away with it, because most content probably fits into the internal buffers and content-length is set before flush/close is called, but with large content this will cause problems.

Suggestion: determine content-length in handle (analogous to last-modified) BEFORE calling copy(). I atta

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