Enable box in server mode

lib/vagrant/box.rb

@@ -16,6 +16,9 @@ module Vagrant
   class Box
     include Comparable
 
+    autoload :Remote, "vagrant/box/remote"
+
+
     # Number of seconds to wait between checks for box updates
     BOX_UPDATE_CHECK_INTERVAL = 3600
 

lib/vagrant/box/remote.rb

@@ -0,0 +1,62 @@
+module Vagrant
+  class Box
+    # This module enables the Box for server mode
+    module Remote
+
+      # Add an attribute reader for the client
+      # when applied to the Box class
+      def self.prepended(klass)
+        klass.class_eval do
+          attr_reader :client
+        end
+      end
+
+      # This is used to initialize a box.
+      #
+      # @param [String] name Logical name of the box.
+      # @param [Symbol] provider The provider that this box implements.
+      # @param [Pathname] directory The directory where this box exists on
+      #   disk.
+      # @param [String] metadata_url Metadata URL for box
+      # @param [Hook] hook A hook to apply to the box downloader, for example, for authentication
+      def initialize(name, provider, version, directory, metadata_url: nil, hook: nil)
+        @logger = Log4r::Logger.new("vagrant::box")
+
+        @name      = name
+        @version   = version
+        @provider  = provider
+        @directory = directory
+        @metadata_url = metadata_url
+        @hook = hook
+      end
+
+      def destroy!
+        client.destroy
+      end
+
+      def in_use?(index)
+        client.in_use(index.to_proto)
+      end
+
+      def has_update?(version=nil, **opts)
+        client.has_update(version)
+      end
+
+      def automatic_update_check_allowed?
+        client.automatic_update_check_allowed
+      end
+
+      def repackage(path)
+        client.repackage(path)
+      end
+
+      def <=>(other)
+        client.compare(other.to_proto)
+      end
+
+      def to_proto
+        client.proto
+      end
+    end
+  end
+end

lib/vagrant/shared_helpers.rb

@@ -253,6 +253,7 @@ module Vagrant
   end
 
   SERVER_MODE_CALLBACKS = [
+    ->{ Vagrant::Box.prepend(Vagrant::Box::Remote) },
     ->{ Vagrant::Guest.prepend(Vagrant::Guest::Remote) },
     ->{ Vagrant::Host.prepend(Vagrant::Host::Remote) },
     ->{ Vagrant::Machine.prepend(Vagrant::Machine::Remote) },