Re: [thredds] Bug report on Content-Length for HTTP Head Request

• To: thredds@xxxxxxxxxxxxxxxx
• Subject: Re: [thredds] Bug report on Content-Length for HTTP Head Request
• From: Ethan Davis <edavis@xxxxxxxxxxxxxxxx>
• Date: Fri, 29 Jul 2011 10:32:32 -0600

Hi Ming Fu,

Thanks for reporting this problem. What version of Tomcat are you running?

I'm seeing it on a server running Tomcat 6.0.32. I've entered it into
our issue tracking system. You can follow it here if you'd like:

https://www.unidata.ucar.edu/jira/browse/TDS-199

Thanks,

Ethan

On 7/28/2011 8:29 PM, Ming Fu wrote:
> Hi All,
> 
> In thredds.servlet.ServletUtil.java, line 607:
> 
>   res.addHeader("Content-Length", Long.toString(contentLength));
> 
> The above line is not setting up “Content-Length” correctly for HTTP
> Head Request in Tomcat.
> 
> As the current implementation in Tomcat, using doGet method to handle
> HTTP Head request will be resulted in a NoBodyResponse to be returned.
> 
> The NoBodyResponse only accepts response.setContentLength method,
> otherwise, it always sets the Content-Length to 0.
> 
> Suggested fix is to override doHead() in
> thredds.servlet.FileServerServlet.java  and make it as a delegator to
> doGet() method.
> 
> Thanks,
> 
> Ming Fu
> 
> Software Engineer
> 
> Tasmanian Partnership for Advanced Computing 
> University of Tasmania

• References:
  • [thredds] Bug report on Content-Length for HTTP Head Request
    • From: Ming Fu