Merge commit 'mainstream/master'

8 files changed, 0 insertions, 882 deletions

diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/abstract/handler.rb b/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/abstract/handler.rb
deleted file mode 100644
index 214df6299e..0000000000
--- a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/abstract/handler.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-module Rack
-  module Auth
-    # Rack::Auth::AbstractHandler implements common authentication functionality.
-    #
-    # +realm+ should be set for all handlers.
-
-    class AbstractHandler
-
-      attr_accessor :realm
-
-      def initialize(app, realm=nil, &authenticator)
-        @app, @realm, @authenticator = app, realm, authenticator
-      end
-
-
-      private
-
-      def unauthorized(www_authenticate = challenge)
-        return [ 401,
-          { 'Content-Type' => 'text/plain',
-            'Content-Length' => '0',
-            'WWW-Authenticate' => www_authenticate.to_s },
-          []
-        ]
-      end
-
-      def bad_request
-        return [ 400,
-          { 'Content-Type' => 'text/plain',
-            'Content-Length' => '0' },
-          []
-        ]
-      end
-
-    end
-  end
-end
diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/abstract/request.rb b/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/abstract/request.rb
deleted file mode 100644
index 1d9ccec685..0000000000
--- a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/abstract/request.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-module Rack
-  module Auth
-    class AbstractRequest
-
-      def initialize(env)
-        @env = env
-      end
-
-      def provided?
-        !authorization_key.nil?
-      end
-
-      def parts
-        @parts ||= @env[authorization_key].split(' ', 2)
-      end
-
-      def scheme
-        @scheme ||= parts.first.downcase.to_sym
-      end
-
-      def params
-        @params ||= parts.last
-      end
-
-
-      private
-
-      AUTHORIZATION_KEYS = ['HTTP_AUTHORIZATION', 'X-HTTP_AUTHORIZATION', 'X_HTTP_AUTHORIZATION']
-
-      def authorization_key
-        @authorization_key ||= AUTHORIZATION_KEYS.detect { |key| @env.has_key?(key) }
-      end
-
-    end
-
-  end
-end
diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/basic.rb b/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/basic.rb
deleted file mode 100644
index 9557224648..0000000000
--- a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/basic.rb
+++ /dev/null
@@ -1,58 +0,0 @@
-require 'rack/auth/abstract/handler'
-require 'rack/auth/abstract/request'
-
-module Rack
-  module Auth
-    # Rack::Auth::Basic implements HTTP Basic Authentication, as per RFC 2617.
-    #
-    # Initialize with the Rack application that you want protecting,
-    # and a block that checks if a username and password pair are valid.
-    #
-    # See also: <tt>example/protectedlobster.rb</tt>
-
-    class Basic < AbstractHandler
-
-      def call(env)
-        auth = Basic::Request.new(env)
-
-        return unauthorized unless auth.provided?
-
-        return bad_request unless auth.basic?
-
-        if valid?(auth)
-          env['REMOTE_USER'] = auth.username
-
-          return @app.call(env)
-        end
-
-        unauthorized
-      end
-
-
-      private
-
-      def challenge
-        'Basic realm="%s"' % realm
-      end
-
-      def valid?(auth)
-        @authenticator.call(*auth.credentials)
-      end
-
-      class Request < Auth::AbstractRequest
-        def basic?
-          :basic == scheme
-        end
-
-        def credentials
-          @credentials ||= params.unpack("m*").first.split(/:/, 2)
-        end
-
-        def username
-          credentials.first
-        end
-      end
-
-    end
-  end
-end
diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/md5.rb b/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/md5.rb
deleted file mode 100644
index e579dc9632..0000000000
--- a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/md5.rb
+++ /dev/null
@@ -1,124 +0,0 @@
-require 'rack/auth/abstract/handler'
-require 'rack/auth/digest/request'
-require 'rack/auth/digest/params'
-require 'rack/auth/digest/nonce'
-require 'digest/md5'
-
-module Rack
-  module Auth
-    module Digest
-      # Rack::Auth::Digest::MD5 implements the MD5 algorithm version of
-      # HTTP Digest Authentication, as per RFC 2617.
-      #
-      # Initialize with the [Rack] application that you want protecting,
-      # and a block that looks up a plaintext password for a given username.
-      #
-      # +opaque+ needs to be set to a constant base64/hexadecimal string.
-      #
-      class MD5 < AbstractHandler
-
-        attr_accessor :opaque
-
-        attr_writer :passwords_hashed
-
-        def initialize(*args)
-          super
-          @passwords_hashed = nil
-        end
-
-        def passwords_hashed?
-          !!@passwords_hashed
-        end
-
-        def call(env)
-          auth = Request.new(env)
-
-          unless auth.provided?
-            return unauthorized
-          end
-
-          if !auth.digest? || !auth.correct_uri? || !valid_qop?(auth)
-            return bad_request
-          end
-
-          if valid?(auth)
-            if auth.nonce.stale?
-              return unauthorized(challenge(:stale => true))
-            else
-              env['REMOTE_USER'] = auth.username
-
-              return @app.call(env)
-            end
-          end
-
-          unauthorized
-        end
-
-
-        private
-
-        QOP = 'auth'.freeze
-
-        def params(hash = {})
-          Params.new do |params|
-            params['realm'] = realm
-            params['nonce'] = Nonce.new.to_s
-            params['opaque'] = H(opaque)
-            params['qop'] = QOP
-
-            hash.each { |k, v| params[k] = v }
-          end
-        end
-
-        def challenge(hash = {})
-          "Digest #{params(hash)}"
-        end
-
-        def valid?(auth)
-          valid_opaque?(auth) && valid_nonce?(auth) && valid_digest?(auth)
-        end
-
-        def valid_qop?(auth)
-          QOP == auth.qop
-        end
-
-        def valid_opaque?(auth)
-          H(opaque) == auth.opaque
-        end
-
-        def valid_nonce?(auth)
-          auth.nonce.valid?
-        end
-
-        def valid_digest?(auth)
-          digest(auth, @authenticator.call(auth.username)) == auth.response
-        end
-
-        def md5(data)
-          ::Digest::MD5.hexdigest(data)
-        end
-
-        alias :H :md5
-
-        def KD(secret, data)
-          H([secret, data] * ':')
-        end
-
-        def A1(auth, password)
-          [ auth.username, auth.realm, password ] * ':'
-        end
-
-        def A2(auth)
-          [ auth.method, auth.uri ] * ':'
-        end
-
-        def digest(auth, password)
-          password_hash = passwords_hashed? ? password : H(A1(auth, password))
-
-          KD(password_hash, [ auth.nonce, auth.nc, auth.cnonce, QOP, H(A2(auth)) ] * ':')
-        end
-
-      end
-    end
-  end
-end
diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/nonce.rb b/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/nonce.rb
deleted file mode 100644
index dbe109f29a..0000000000
--- a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/nonce.rb
+++ /dev/null
@@ -1,51 +0,0 @@
-require 'digest/md5'
-
-module Rack
-  module Auth
-    module Digest
-      # Rack::Auth::Digest::Nonce is the default nonce generator for the
-      # Rack::Auth::Digest::MD5 authentication handler.
-      #
-      # +private_key+ needs to set to a constant string.
-      #
-      # +time_limit+ can be optionally set to an integer (number of seconds),
-      # to limit the validity of the generated nonces.
-
-      class Nonce
-
-        class << self
-          attr_accessor :private_key, :time_limit
-        end
-
-        def self.parse(string)
-          new(*string.unpack("m*").first.split(' ', 2))
-        end
-
-        def initialize(timestamp = Time.now, given_digest = nil)
-          @timestamp, @given_digest = timestamp.to_i, given_digest
-        end
-
-        def to_s
-          [([ @timestamp, digest ] * ' ')].pack("m*").strip
-        end
-
-        def digest
-          ::Digest::MD5.hexdigest([ @timestamp, self.class.private_key ] * ':')
-        end
-
-        def valid?
-          digest == @given_digest
-        end
-
-        def stale?
-          !self.class.time_limit.nil? && (@timestamp - Time.now.to_i) < self.class.time_limit
-        end
-
-        def fresh?
-          !stale?
-        end
-
-      end
-    end
-  end
-end
diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/params.rb b/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/params.rb
deleted file mode 100644
index 730e2efdc8..0000000000
--- a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/params.rb
+++ /dev/null
@@ -1,55 +0,0 @@
-module Rack
-  module Auth
-    module Digest
-      class Params < Hash
-
-        def self.parse(str)
-          split_header_value(str).inject(new) do |header, param|
-            k, v = param.split('=', 2)
-            header[k] = dequote(v)
-            header
-          end
-        end
-
-        def self.dequote(str) # From WEBrick::HTTPUtils
-          ret = (/\A"(.*)"\Z/ =~ str) ? $1 : str.dup
-          ret.gsub!(/\\(.)/, "\\1")
-          ret
-        end
-
-        def self.split_header_value(str)
-          str.scan( /(\w+\=(?:"[^\"]+"|[^,]+))/n ).collect{ |v| v[0] }
-        end
-
-        def initialize
-          super
-
-          yield self if block_given?
-        end
-
-        def [](k)
-          super k.to_s
-        end
-
-        def []=(k, v)
-          super k.to_s, v.to_s
-        end
-
-        UNQUOTED = ['qop', 'nc', 'stale']
-
-        def to_s
-          inject([]) do |parts, (k, v)|
-            parts << "#{k}=" + (UNQUOTED.include?(k) ? v.to_s : quote(v))
-            parts
-          end.join(', ')
-        end
-
-        def quote(str) # From WEBrick::HTTPUtils
-          '"' << str.gsub(/[\\\"]/o, "\\\1") << '"'
-        end
-
-      end
-    end
-  end
-end
-
diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/request.rb b/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/request.rb
deleted file mode 100644
index a8aa3bf996..0000000000
--- a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/digest/request.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-require 'rack/auth/abstract/request'
-require 'rack/auth/digest/params'
-require 'rack/auth/digest/nonce'
-
-module Rack
-  module Auth
-    module Digest
-      class Request < Auth::AbstractRequest
-
-        def method
-          @env['rack.methodoverride.original_method'] || @env['REQUEST_METHOD']
-        end
-
-        def digest?
-          :digest == scheme
-        end
-
-        def correct_uri?
-          (@env['SCRIPT_NAME'].to_s + @env['PATH_INFO'].to_s) == uri
-        end
-
-        def nonce
-          @nonce ||= Nonce.parse(params['nonce'])
-        end
-
-        def params
-          @params ||= Params.parse(parts.last)
-        end
-
-        def method_missing(sym)
-          if params.has_key? key = sym.to_s
-            return params[key]
-          end
-          super
-        end
-
-      end
-    end
-  end
-end
diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/openid.rb b/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/openid.rb
deleted file mode 100644
index c5f6a5143e..0000000000
--- a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/auth/openid.rb
+++ /dev/null
@@ -1,480 +0,0 @@
-# AUTHOR: blink <blinketje@gmail.com>; blink#ruby-lang@irc.freenode.net
-
-gem 'ruby-openid', '~> 2' if defined? Gem
-require 'rack/request'
-require 'rack/utils'
-require 'rack/auth/abstract/handler'
-require 'uri'
-require 'openid' #gem
-require 'openid/extension' #gem
-require 'openid/store/memory' #gem
-
-module Rack
-  class Request
-    def openid_request
-      @env['rack.auth.openid.request']
-    end
-
-    def openid_response
-      @env['rack.auth.openid.response']
-    end
-  end
-
-  module Auth
-
-    # Rack::Auth::OpenID provides a simple method for setting up an OpenID
-    # Consumer. It requires the ruby-openid library from janrain to operate,
-    # as well as a rack method of session management.
-    #
-    # The ruby-openid home page is at http://openidenabled.com/ruby-openid/.
-    #
-    # The OpenID specifications can be found at
-    # http://openid.net/specs/openid-authentication-1_1.html
-    # and
-    # http://openid.net/specs/openid-authentication-2_0.html. Documentation
-    # for published OpenID extensions and related topics can be found at
-    # http://openid.net/developers/specs/.
-    #
-    # It is recommended to read through the OpenID spec, as well as
-    # ruby-openid's documentation, to understand what exactly goes on. However
-    # a setup as simple as the presented examples is enough to provide
-    # Consumer functionality.
-    #
-    # This library strongly intends to utilize the OpenID 2.0 features of the
-    # ruby-openid library, which provides OpenID 1.0 compatiblity.
-    #
-    # NOTE: Due to the amount of data that this library stores in the
-    # session, Rack::Session::Cookie may fault.
-
-    class OpenID
-
-      class NoSession < RuntimeError; end
-      class BadExtension < RuntimeError; end
-      # Required for ruby-openid
-      ValidStatus = [:success, :setup_needed, :cancel, :failure]
-
-      # = Arguments
-      #
-      # The first argument is the realm, identifying the site they are trusting
-      # with their identity. This is required, also treated as the trust_root
-      # in OpenID 1.x exchanges.
-      #
-      # The optional second argument is a hash of options.
-      #
-      # == Options
-      #
-      # <tt>:return_to</tt> defines the url to return to after the client
-      # authenticates with the openid service provider. This url should point
-      # to where Rack::Auth::OpenID is mounted. If <tt>:return_to</tt> is not
-      # provided, return_to will be the current url which allows flexibility
-      # with caveats.
-      #
-      # <tt>:session_key</tt> defines the key to the session hash in the env.
-      # It defaults to 'rack.session'.
-      #
-      # <tt>:openid_param</tt> defines at what key in the request parameters to
-      # find the identifier to resolve. As per the 2.0 spec, the default is
-      # 'openid_identifier'.
-      #
-      # <tt>:store</tt> defined what OpenID Store to use for persistant
-      # information. By default a Store::Memory will be used.
-      #
-      # <tt>:immediate</tt> as true will make initial requests to be of an
-      # immediate type. This is false by default. See OpenID specification
-      # documentation.
-      #
-      # <tt>:extensions</tt> should be a hash of openid extension
-      # implementations. The key should be the extension main module, the value
-      # should be an array of arguments for extension::Request.new.
-      # The hash is iterated over and passed to #add_extension for processing.
-      # Please see #add_extension for further documentation.
-      #
-      # == Examples
-      #
-      #   simple_oid = OpenID.new('http://mysite.com/')
-      #
-      #   return_oid = OpenID.new('http://mysite.com/', {
-      #     :return_to => 'http://mysite.com/openid'
-      #   })
-      #
-      #   complex_oid = OpenID.new('http://mysite.com/',
-      #     :immediate => true,
-      #     :extensions => {
-      #       ::OpenID::SReg => [['email'],['nickname']]
-      #     }
-      #   )
-      #
-      # = Advanced
-      #
-      # Most of the functionality of this library is encapsulated such that
-      # expansion and overriding functions isn't difficult nor tricky.
-      # Alternately, to avoid opening up singleton objects or subclassing, a
-      # wrapper rack middleware can be composed to act upon Auth::OpenID's
-      # responses. See #check and #finish for locations of pertinent data.
-      #
-      # == Responses
-      #
-      # To change the responses that Auth::OpenID returns, override the methods
-      # #redirect, #bad_request, #unauthorized, #access_denied, and
-      # #foreign_server_failure.
-      #
-      # Additionally #confirm_post_params is used when the URI would exceed
-      # length limits on a GET request when doing the initial verification
-      # request.
-      #
-      # == Processing
-      #
-      # To change methods of processing completed transactions, override the
-      # methods #success, #setup_needed, #cancel, and #failure. Please ensure
-      # the returned object is a rack compatible response.
-      #
-      # The first argument is an OpenID::Response, the second is a
-      # Rack::Request of the current request, the last is the hash used in
-      # ruby-openid handling, which can be found manually at
-      # env['rack.session'][:openid].
-      #
-      # This is useful if you wanted to expand the processing done, such as
-      # setting up user accounts.
-      #
-      #   oid_app = Rack::Auth::OpenID.new realm, :return_to => return_to
-      #   def oid_app.success oid, request, session
-      #     user = Models::User[oid.identity_url]
-      #     user ||= Models::User.create_from_openid oid
-      #     request['rack.session'][:user] = user.id
-      #     redirect MyApp.site_home
-      #   end
-      #
-      #   site_map['/openid'] = oid_app
-      #   map = Rack::URLMap.new site_map
-      #   ...
-
-      def initialize(realm, options={})
-        realm = URI(realm)
-        raise ArgumentError, "Invalid realm: #{realm}" \
-          unless realm.absolute? \
-          and realm.fragment.nil? \
-          and realm.scheme =~ /^https?$/ \
-          and realm.host =~ /^(\*\.)?#{URI::REGEXP::PATTERN::URIC_NO_SLASH}+/
-        realm.path = '/' if realm.path.empty?
-        @realm = realm.to_s
-
-        if ruri = options[:return_to]
-          ruri = URI(ruri)
-          raise ArgumentError, "Invalid return_to: #{ruri}" \
-            unless ruri.absolute? \
-            and ruri.scheme  =~ /^https?$/ \
-            and ruri.fragment.nil?
-          raise ArgumentError, "return_to #{ruri} not within realm #{realm}" \
-            unless self.within_realm?(ruri)
-          @return_to = ruri.to_s
-        end
-
-        @session_key  = options[:session_key]   || 'rack.session'
-        @openid_param = options[:openid_param]  || 'openid_identifier'
-        @store        = options[:store]         || ::OpenID::Store::Memory.new
-        @immediate    = !!options[:immediate]
-
-        @extensions = {}
-        if extensions = options.delete(:extensions)
-          extensions.each do |ext, args|
-            add_extension ext, *args
-          end
-        end
-
-        # Undocumented, semi-experimental
-        @anonymous    = !!options[:anonymous]
-      end
-
-      attr_reader :realm, :return_to, :session_key, :openid_param, :store,
-        :immediate, :extensions
-
-      # Sets up and uses session data at <tt>:openid</tt> within the session.
-      # Errors in this setup will raise a NoSession exception.
-      #
-      # If the parameter 'openid.mode' is set, which implies a followup from
-      # the openid server, processing is passed to #finish and the result is
-      # returned. However, if there is no appropriate openid information in the
-      # session, a 400 error is returned.
-      #
-      # If the parameter specified by <tt>options[:openid_param]</tt> is
-      # present, processing is passed to #check and the result is returned.
-      #
-      # If neither of these conditions are met, #unauthorized is called.
-
-      def call(env)
-        env['rack.auth.openid'] = self
-        env_session = env[@session_key]
-        unless env_session and env_session.is_a?(Hash)
-          raise NoSession, 'No compatible session'
-        end
-        # let us work in our own namespace...
-        session = (env_session[:openid] ||= {})
-        unless session and session.is_a?(Hash)
-          raise NoSession, 'Incompatible openid session'
-        end
-
-        request = Rack::Request.new(env)
-        consumer = ::OpenID::Consumer.new(session, @store)
-
-        if mode = request.GET['openid.mode']
-          if session.key?(:openid_param)
-            finish(consumer, session, request)
-          else
-            bad_request
-          end
-        elsif request.GET[@openid_param]
-          check(consumer, session, request)
-        else
-          unauthorized
-        end
-      end
-
-      # As the first part of OpenID consumer action, #check retrieves the data
-      # required for completion.
-      #
-      # If all parameters fit within the max length of a URI, a 303 redirect
-      # will be returned. Otherwise #confirm_post_params will be called.
-      #
-      # Any messages from OpenID's request are logged to env['rack.errors']
-      #
-      # <tt>env['rack.auth.openid.request']</tt> is the openid checkid request
-      # instance.
-      #
-      # <tt>session[:openid_param]</tt> is set to the openid identifier
-      # provided by the user.
-      #
-      # <tt>session[:return_to]</tt> is set to the return_to uri given to the
-      # identity provider.
-
-      def check(consumer, session, req)
-        oid = consumer.begin(req.GET[@openid_param], @anonymous)
-        req.env['rack.auth.openid.request'] = oid
-        req.env['rack.errors'].puts(oid.message)
-        p oid if $DEBUG
-
-        ## Extension support
-        extensions.each do |ext,args|
-          oid.add_extension(ext::Request.new(*args))
-        end
-
-        session[:openid_param] = req.GET[openid_param]
-        return_to_uri = return_to ? return_to : req.url
-        session[:return_to] = return_to_uri
-        immediate = session.key?(:setup_needed) ? false : immediate
-
-        if oid.send_redirect?(realm, return_to_uri, immediate)
-          uri = oid.redirect_url(realm, return_to_uri, immediate)
-          redirect(uri)
-        else
-          confirm_post_params(oid, realm, return_to_uri, immediate)
-        end
-      rescue ::OpenID::DiscoveryFailure => e
-        # thrown from inside OpenID::Consumer#begin by yadis stuff
-        req.env['rack.errors'].puts([e.message, *e.backtrace]*"\n")
-        return foreign_server_failure
-      end
-
-      # This is the final portion of authentication.
-      # If successful, a redirect to the realm is be returned.
-      # Data gathered from extensions are stored in session[:openid] with the
-      # extension's namespace uri as the key.
-      #
-      # Any messages from OpenID's response are logged to env['rack.errors']
-      #
-      # <tt>env['rack.auth.openid.response']</tt> will contain the openid
-      # response.
-
-      def finish(consumer, session, req)
-        oid = consumer.complete(req.GET, req.url)
-        req.env['rack.auth.openid.response'] = oid
-        req.env['rack.errors'].puts(oid.message)
-        p oid if $DEBUG
-
-        raise unless ValidStatus.include?(oid.status)
-        __send__(oid.status, oid, req, session)
-      end
-
-      # The first argument should be the main extension module.
-      # The extension module should contain the constants:
-      #   * class Request, should have OpenID::Extension as an ancestor
-      #   * class Response, should have OpenID::Extension as an ancestor
-      #   * string NS_URI, which defining the namespace of the extension
-      #
-      # All trailing arguments will be passed to extension::Request.new in
-      # #check.
-      # The openid response will be passed to
-      # extension::Response#from_success_response, #get_extension_args will be
-      # called on the result to attain the gathered data.
-      #
-      # This method returns the key at which the response data will be found in
-      # the session, which is the namespace uri by default.
-
-      def add_extension(ext, *args)
-        raise BadExtension unless valid_extension?(ext)
-        extensions[ext] = args
-        return ext::NS_URI
-      end
-
-      # Checks the validitity, in the context of usage, of a submitted
-      # extension.
-
-      def valid_extension?(ext)
-        if not %w[NS_URI Request Response].all?{|c| ext.const_defined?(c) }
-          raise ArgumentError, 'Extension is missing constants.'
-        elsif not ext::Response.respond_to?(:from_success_response)
-          raise ArgumentError, 'Response is missing required method.'
-        end
-        return true
-      rescue
-        return false
-      end
-
-      # Checks the provided uri to ensure it'd be considered within the realm.
-      # is currently not compatible with wildcard realms.
-
-      def within_realm? uri
-        uri = URI.parse(uri.to_s)
-        realm = URI.parse(self.realm)
-        return false unless uri.absolute?
-        return false unless uri.path[0, realm.path.size] == realm.path
-        return false unless uri.host == realm.host or realm.host[/^\*\./]
-        # for wildcard support, is awkward with URI limitations
-        realm_match = Regexp.escape(realm.host).
-          sub(/^\*\./,"^#{URI::REGEXP::PATTERN::URIC_NO_SLASH}+.")+'$'
-        return false unless uri.host.match(realm_match)
-        return true
-      end
-      alias_method :include?, :within_realm?
-
-      protected
-
-      ### These methods define some of the boilerplate responses.
-
-      # Returns an html form page for posting to an Identity Provider if the
-      # GET request would exceed the upper URI length limit.
-
-      def confirm_post_params(oid, realm, return_to, immediate)
-        Rack::Response.new.finish do |r|
-          r.write '<html><head><title>Confirm...</title></head><body>'
-          r.write oid.form_markup(realm, return_to, immediate)
-          r.write '</body></html>'
-        end
-      end
-
-      # Returns a 303 redirect with the destination of that provided by the
-      # argument.
-
-      def redirect(uri)
-        [ 303, {'Content-Length'=>'0', 'Content-Type'=>'text/plain',
-          'Location' => uri},
-          [] ]
-      end
-
-      # Returns an empty 400 response.
-
-      def bad_request
-        [ 400, {'Content-Type'=>'text/plain', 'Content-Length'=>'0'},
-          [''] ]
-      end
-
-      # Returns a basic unauthorized 401 response.
-
-      def unauthorized
-        [ 401, {'Content-Type' => 'text/plain', 'Content-Length' => '13'},
-          ['Unauthorized.'] ]
-      end
-
-      # Returns a basic access denied 403 response.
-
-      def access_denied
-        [ 403, {'Content-Type' => 'text/plain', 'Content-Length' => '14'},
-          ['Access denied.'] ]
-      end
-
-      # Returns a 503 response to be used if communication with the remote
-      # OpenID server fails.
-
-      def foreign_server_failure
-        [ 503, {'Content-Type'=>'text/plain', 'Content-Length' => '23'},
-          ['Foreign server failure.'] ]
-      end
-
-      private
-
-      ### These methods are called after a transaction is completed, depending
-      # on its outcome. These should all return a rack compatible response.
-      # You'd want to override these to provide additional functionality.
-
-      # Called to complete processing on a successful transaction.
-      # Within the openid session, :openid_identity and :openid_identifier are
-      # set to the user friendly and the standard representation of the
-      # validated identity. All other data in the openid session is cleared.
-
-      def success(oid, request, session)
-        session.clear
-        session[:openid_identity]   = oid.display_identifier
-        session[:openid_identifier] = oid.identity_url
-        extensions.keys.each do |ext|
-          label     = ext.name[/[^:]+$/].downcase
-          response  = ext::Response.from_success_response(oid)
-          session[label] = response.data
-        end
-        redirect(realm)
-      end
-
-      # Called if the Identity Provider indicates further setup by the user is
-      # required.
-      # The identifier is retrived from the openid session at :openid_param.
-      # And :setup_needed is set to true to prevent looping.
-
-      def setup_needed(oid, request, session)
-        identifier = session[:openid_param]
-        session[:setup_needed] = true
-        redirect req.script_name + '?' + openid_param + '=' + identifier
-      end
-
-      # Called if the user indicates they wish to cancel identification.
-      # Data within openid session is cleared.
-
-      def cancel(oid, request, session)
-        session.clear
-        access_denied
-      end
-
-      # Called if the Identity Provider indicates the user is unable to confirm
-      # their identity. Data within the openid session is left alone, in case
-      # of swarm auth attacks.
-
-      def failure(oid, request, session)
-        unauthorized
-      end
-    end
-
-    # A class developed out of the request to use OpenID as an authentication
-    # middleware. The request will be sent to the OpenID instance unless the
-    # block evaluates to true. For example in rackup, you can use it as such:
-    #
-    #   use Rack::Session::Pool
-    #   use Rack::Auth::OpenIDAuth, realm, openid_options do |env|
-    #     env['rack.session'][:authkey] == a_string
-    #   end
-    #   run RackApp
-    #
-    # Or simply:
-    #
-    #   app = Rack::Auth::OpenIDAuth.new app, realm, openid_options, &auth
-
-    class OpenIDAuth < Rack::Auth::AbstractHandler
-      attr_reader :oid
-      def initialize(app, realm, options={}, &auth)
-        @oid = OpenID.new(realm, options)
-        super(app, &auth)
-      end
-
-      def call(env)
-        to = auth.call(env) ? @app : @oid
-        to.call env
-      end
-    end
-  end
-end