1  #
   2  # httpauth.rb -- HTTP access authentication
   3  #
   4  # Author: IPR -- Internet Programming with Ruby -- writers
   5  # Copyright (c) 2000, 2001 TAKAHASHI Masayoshi, GOTOU Yuuzou
   6  # Copyright (c) 2002 Internet Programming with Ruby writers. All rights
   7  # reserved.
   8  #
   9  # $IPR: httpauth.rb,v 1.14 2003/07/22 19:20:42 gotoyuzo Exp $
  10 
  11  require 'webrick/httpauth/basicauth'
  12  require 'webrick/httpauth/digestauth'
  13  require 'webrick/httpauth/htpasswd'
  14  require 'webrick/httpauth/htdigest'
  15  require 'webrick/httpauth/htgroup'
  16 
  17  module WEBrick
  18    module HTTPAuth
  19      module_function
  20 
  21      def _basic_auth(req, res, realm, req_field, res_field, err_type, block)
  22        user = pass = nil
  23        if /^Basic\s+(.*)/o =~ req[req_field]
  24          userpass = $1
  25          user, pass = userpass.unpack("m*")[0].split(":", 2)
  26        end
  27        if block.call(user, pass)
  28          req.user = user
  29          return
  30        end
  31        res[res_field] = "Basic realm=\"#{realm}\""
  32        raise err_type
  33      end
  34 
  35      def basic_auth(req, res, realm, &block)
  36        _basic_auth(req, res, realm, "Authorization", "WWW-Authenticate",
  37                    HTTPStatus::Unauthorized, block)
  38      end
  39 
  40      def proxy_basic_auth(req, res, realm, &block)
  41        _basic_auth(req, res, realm, "Proxy-Authorization", "Proxy-Authenticate",
  42                    HTTPStatus::ProxyAuthenticationRequired, block)
  43      end
  44    end
  45  end