lib/webrick/httpservlet/abstract.rb

   1 #
   2 # httpservlet.rb -- HTTPServlet Module
   3 #
   4 # Author: IPR -- Internet Programming with Ruby -- writers
   5 # Copyright (c) 2000 TAKAHASHI Masayoshi, GOTOU Yuuzou
   6 # Copyright (c) 2002 Internet Programming with Ruby writers. All rights
   7 # reserved.
   8 #
   9 # $IPR: abstract.rb,v 1.24 2003/07/11 11:16:46 gotoyuzo Exp $
  10
  11 require 'thread'
  12
  13 require 'webrick/htmlutils'
  14 require 'webrick/httputils'
  15 require 'webrick/httpstatus'
  16
  17 module WEBrick
  18   module HTTPServlet
  19     class HTTPServletError < StandardError; end
  20
  21     class AbstractServlet
  22       def self.get_instance(config, *options)
  23         self.new(config, *options)
  24       end
  25
  26       def initialize(server, *options)
  27         @server = @config = server
  28         @logger = @server[:Logger]
  29         @options = options
  30       end
  31
  32       def service(req, res)
  33         method_name = "do_" + req.request_method.gsub(/-/, "_")
  34         if respond_to?(method_name)
  35           __send__(method_name, req, res)
  36         else
  37           raise HTTPStatus::MethodNotAllowed,
  38                 "unsupported method `#{req.request_method}'."
  39         end
  40       end
  41
  42       def do_GET(req, res)
  43         raise HTTPStatus::NotFound, "not found."
  44       end
  45
  46       def do_HEAD(req, res)
  47         do_GET(req, res)
  48       end
  49
  50       def do_OPTIONS(req, res)
  51         m = self.methods.grep(/^do_[A-Z]+$/)
  52         m.collect!{|i| i.sub(/do_/, "") }
  53         m.sort!
  54         res["allow"] = m.join(",")
  55       end
  56
  57       private
  58
  59       def redirect_to_directory_uri(req, res)
  60         if req.path[-1] != ?/
  61           location = req.path + "/"
  62           if req.query_string && req.query_string.size > 0
  63             location << "?" << req.query_string
  64           end
  65           res.set_redirect(HTTPStatus::MovedPermanently, location)
  66         end
  67       end
  68     end
  69
  70   end
  71 end