/tools/Ruby/lib/ruby/1.8/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
11require 'thread'
12
13require 'webrick/htmlutils'
14require 'webrick/httputils'
15require 'webrick/httpstatus'
16
17module 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 = WEBrick::HTTPUtils.escape_path(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
71end