Module: WEBrick::RouteServlet

Defined in:
lib/webrick/route_servlet.rb,
lib/webrick/route_servlet/version.rb,
lib/webrick/route_servlet/http_request.rb,
lib/webrick/route_servlet/action_servlet.rb

Defined Under Namespace

Modules: ClassMethods, HTTPRequest Classes: ActionServlet

Constant Summary collapse

VERSION = 
"1.2.12"

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(klass) ⇒ Object 



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# File 'lib/webrick/route_servlet.rb', line 214

def included(klass)
  klass.extend ClassMethods
end

.servlet {|servlet| ... } ⇒ Object

Yields:



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# File 'lib/webrick/route_servlet.rb', line 207

def servlet
  servlet = Class.new(WEBrick::HTTPServlet::AbstractServlet)
  servlet.send(:include, RouteServlet)
  yield servlet if block_given?
  servlet
end

Instance Method Details

#select_route(req) ⇒ Object 



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# File 'lib/webrick/route_servlet.rb', line 35

def select_route(req)
  req_method = req.request_method.to_sym
  if req.query["_method"]
    req_method = req.query["_method"].upcase.to_sym
  end

  self.class.routes.each do |method, re, servlet, servlet_options, request_options|
    if method==:* || method==req_method
      md = re.match(req.path_info)
      if md
        # path params
        params = Hash[md.names.map(&:to_sym).zip(md.captures)]

        # default params
        defaults = request_options[:defaults] || request_options
        params.each do |k,v|
          if v.nil?
            params[k] = defaults[k]
          end
        end

        # set
        req.action = params[:action] || request_options[:action]
        req.params = params

        # advanced constraints
        constraints = request_options[:constraints]
        if constraints.respond_to?(:matches?)
          next unless constraints.matches?(req)
        end

        return [servlet, servlet_options]
      end
    end
  end

  nil
end

#service(req, res) ⇒ Object 



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# File 'lib/webrick/route_servlet.rb', line 8

def service(req, res)
  e = nil

  req.extend WEBrick::RouteServlet::HTTPRequest
  servlet, servlet_options = select_route(req)

  if servlet
    # 200
    begin
      res.status = 200
      servlet.get_instance(@config, *servlet_options).service(req, res)
      return
    rescue Exception => e
    end
  end

  # 500
  res.status = 500
  if e
    # default 500
    res.body = "<h2>#{e.class}: #{e.message}</h2>\n<pre>#{e.backtrace.join("\n")}</pre>"
  else
    # routing error
    res.body = "RoutingError: #{req.request_method} #{req.path_info}"
  end
end