Method: RDoc::Servlet#if_modified_since

Defined in:
lib/rdoc/servlet.rb

#if_modified_since(req, res, path = nil) ⇒ Object

Handles the If-Modified-Since HTTP header on req for path. If the file has not been modified a Not Modified response is returned. If the file has been modified a Last-Modified header is added to res.



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# File 'lib/rdoc/servlet.rb', line 267

def if_modified_since req, res, path = nil
  last_modified = File.stat(path).mtime if path

  res['last-modified'] = last_modified.httpdate

  return unless ims = req['if-modified-since']

  ims = Time.parse ims

  unless ims < last_modified then
    res.body = ''
    raise WEBrick::HTTPStatus::NotModified
  end
end