Class: Riddl::Utils::XMLServe

Inherits:
Implementation show all
Defined in:
lib/ruby/riddl/utils/xmlserve.rb

Instance Method Summary collapse

Methods inherited from Implementation

#headers, #initialize, #status

Constructor Details

This class inherits a constructor from Riddl::Implementation

Instance Method Details

#response ⇒ Object 



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# File 'lib/ruby/riddl/utils/xmlserve.rb', line 9

def response
  path = File.file?(@a[0]) ? @a[0] : nil
  xpath = @a[1]

  if path.nil? || File.directory?(path)
    @status = 404
    return []
  end
  if File.exists?(path)
    mtime = File.mtime(path)
    @headers << Riddl::Header.new("Last-Modified",mtime.httpdate)
    @headers << Riddl::Header.new("Cache-Control","max-age=15552000, public")
    @headers << Riddl::Header.new("ETag",Digest::MD5.hexdigest(mtime.httpdate))
    htime = @env["HTTP_IF_MODIFIED_SINCE"].nil? ? Time.at(0) : Time.parse(@env["HTTP_IF_MODIFIED_SINCE"])
    if htime == mtime
      @headers << Riddl::Header.new("Connection","close")
      @status = 304 # Not modified
      return []
    else 
      if xpath 
        res = XML::Smart.open(path).find(xpath)
        return Riddl::Parameter::Complex.new('file','text/xml',res.any? ? res.first.dump : '<empty/>')
      else
        return Riddl::Parameter::Complex.new('file','text/xml',File.open(path,'r'))
      end
    end  
  end
  @status = 404
end