require 'action_controller/cgi_ext' require 'action_controller/session/cookie_store' module ActionController #:nodoc: class RackRequest < AbstractRequest #:nodoc: attr_accessor :session_options attr_reader :cgi class SessionFixationAttempt < StandardError #:nodoc: end DEFAULT_SESSION_OPTIONS = { :database_manager => CGI::Session::CookieStore, # store data in cookie :prefix => "ruby_sess.", # prefix session file names :session_path => "/", # available to all paths in app :session_key => "_session_id", :cookie_only => true } def initialize(env, session_options = DEFAULT_SESSION_OPTIONS) @session_options = session_options @env = env @cgi = CGIWrapper.new(self) super() end %w[ AUTH_TYPE GATEWAY_INTERFACE PATH_INFO PATH_TRANSLATED REMOTE_HOST REMOTE_IDENT REMOTE_USER SCRIPT_NAME SERVER_NAME SERVER_PROTOCOL HTTP_ACCEPT HTTP_ACCEPT_CHARSET HTTP_ACCEPT_ENCODING HTTP_ACCEPT_LANGUAGE HTTP_CACHE_CONTROL HTTP_FROM HTTP_NEGOTIATE HTTP_PRAGMA HTTP_REFERER HTTP_USER_AGENT ].each do |env| define_method(env.sub(/^HTTP_/n, '').downcase) do @env[env] end end def query_string qs = super if !qs.blank? qs else @env['QUERY_STRING'] end end def body_stream #:nodoc: @env['rack.input'] end def key?(key) @env.key?(key) end def cookies return {} unless @env["HTTP_COOKIE"] unless @env["rack.request.cookie_string"] == @env["HTTP_COOKIE"] @env["rack.request.cookie_string"] = @env["HTTP_COOKIE"] @env["rack.request.cookie_hash"] = CGI::Cookie::parse(@env["rack.request.cookie_string"]) end @env["rack.request.cookie_hash"] end def server_port @env['SERVER_PORT'].to_i end def server_software @env['SERVER_SOFTWARE'].split("/").first end def session unless defined?(@session) if @session_options == false @session = Hash.new else stale_session_check! do if cookie_only? && query_parameters[session_options_with_string_keys['session_key']] raise SessionFixationAttempt end case value = session_options_with_string_keys['new_session'] when true @session = new_session when false begin @session = CGI::Session.new(@cgi, session_options_with_string_keys) # CGI::Session raises ArgumentError if 'new_session' == false # and no session cookie or query param is present. rescue ArgumentError @session = Hash.new end when nil @session = CGI::Session.new(@cgi, session_options_with_string_keys) else raise ArgumentError, "Invalid new_session option: #{value}" end @session['__valid_session'] end end end @session end def reset_session @session.delete if defined?(@session) && @session.is_a?(CGI::Session) @session = new_session end private # Delete an old session if it exists then create a new one. def new_session if @session_options == false Hash.new else CGI::Session.new(@cgi, session_options_with_string_keys.merge("new_session" => false)).delete rescue nil CGI::Session.new(@cgi, session_options_with_string_keys.merge("new_session" => true)) end end def cookie_only? session_options_with_string_keys['cookie_only'] end def stale_session_check! yield rescue ArgumentError => argument_error if argument_error.message =~ %r{undefined class/module ([\w:]*\w)} begin # Note that the regexp does not allow $1 to end with a ':' $1.constantize rescue LoadError, NameError => const_error raise ActionController::SessionRestoreError, <<-end_msg Session contains objects whose class definition isn\'t available. Remember to require the classes for all objects kept in the session. (Original exception: #{const_error.message} [#{const_error.class}]) end_msg end retry else raise end end def session_options_with_string_keys @session_options_with_string_keys ||= DEFAULT_SESSION_OPTIONS.merge(@session_options).stringify_keys end end class RackResponse < AbstractResponse #:nodoc: def initialize(request) @cgi = request.cgi @writer = lambda { |x| @body << x } @block = nil super() end # Retrieve status from instance variable if has already been delete def status @status || super end def out(output = $stdout, &block) # Nasty hack because CGI sessions are closed after the normal # prepare! statement set_cookies! @block = block @status = headers.delete("Status") if [204, 304].include?(status.to_i) headers.delete("Content-Type") [status, headers.to_hash, []] else [status, headers.to_hash, self] end end alias to_a out def each(&callback) if @body.respond_to?(:call) @writer = lambda { |x| callback.call(x) } @body.call(self, self) elsif @body.is_a?(String) @body.each_line(&callback) else @body.each(&callback) end @writer = callback @block.call(self) if @block end def write(str) @writer.call str.to_s str end def close @body.close if @body.respond_to?(:close) end def empty? @block == nil && @body.empty? end def prepare! super convert_language! convert_expires! set_status! # set_cookies! end private def convert_language! headers["Content-Language"] = headers.delete("language") if headers["language"] end def convert_expires! headers["Expires"] = headers.delete("") if headers["expires"] end def convert_content_type! super headers['Content-Type'] = headers.delete('type') || "text/html" headers['Content-Type'] += "; charset=" + headers.delete('charset') if headers['charset'] end def set_content_length! super headers["Content-Length"] = headers["Content-Length"].to_s if headers["Content-Length"] end def set_status! self.status ||= "200 OK" end def set_cookies! # Convert 'cookie' header to 'Set-Cookie' headers. # Because Set-Cookie header can appear more the once in the response body, # we store it in a line break separated string that will be translated to # multiple Set-Cookie header by the handler. if cookie = headers.delete('cookie') cookies = [] case cookie when Array then cookie.each { |c| cookies << c.to_s } when Hash then cookie.each { |_, c| cookies << c.to_s } else cookies << cookie.to_s end @cgi.output_cookies.each { |c| cookies << c.to_s } if @cgi.output_cookies headers['Set-Cookie'] = [headers['Set-Cookie'], cookies].flatten.compact end end end class CGIWrapper < ::CGI attr_reader :output_cookies def initialize(request, *args) @request = request @args = *args @input = request.body super *args end def params @params ||= @request.params end def cookies @request.cookies end def query_string @request.query_string end # Used to wrap the normal args variable used inside CGI. def args @args end # Used to wrap the normal env_table variable used inside CGI. def env_table @request.env end # Used to wrap the normal stdinput variable used inside CGI. def stdinput @input end end end