added the implemention for #server

lib/zero/request.rb

@@ -1,6 +1,7 @@
 require_relative 'request/accept'
 require_relative 'request/client'
 require_relative 'request/parameter'
+require_relative 'request/server'
 
 module Zero
   # This class wraps around a rack environment for easier access to all data.
@@ -26,6 +27,12 @@ module Zero
       @client ||= Request::Client.new(@env)
     end
 
+    # get the information on the server
+    # @return [Server] information on the running server
+    def server
+      @server ||= Request::Server.new(@env)
+    end
+
     # get an object representing the parameters of the request
     # @return [Parameter] object having all parameters
     def params

lib/zero/request/server.rb

@@ -0,0 +1,41 @@
+module Zero
+  class Request
+    # This class represents all server related information of a request.
+    class Server
+      # the key for the server name
+      # @api private
+      KEY_SERVER_NAME     = 'SERVER_NAME'
+      # the key for the server port
+      # @api private
+      KEY_SERVER_PORT     = 'SERVER_PORT'
+      # the key for the server protocol
+      # @api private
+      KEY_SERVER_PROTOCOL = 'SERVER_PROTOCOL'
+      # the key for the server software
+      # @api private
+      KEY_SERVER_SOFTWARE = 'SERVER_SOFTWARE'
+
+      # This creates a new server instance extracting all server related
+      #  information from the environment.
+      def initialize(environment)
+        @hostname = environment[KEY_SERVER_NAME]
+        @port     = environment[KEY_SERVER_PORT].to_i
+        @protocol = environment[KEY_SERVER_PROTOCOL]
+        @software = environment[KEY_SERVER_SOFTWARE]
+      end
+
+      # get the port
+      # @return [Numeric] the port
+      attr_reader :port
+      # get the hostname of the server
+      # @return [String] the hostname
+      attr_reader :hostname
+      # get the protocol of the server (normally it should be HTTP/1.1)
+      # @return [String] the protocol
+      attr_reader :protocol
+      # get the server software
+      # @return [String] the server software name
+      attr_reader :software
+    end
+  end
+end