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#
# Author:: Adam Jacob (<adam@chef.io>)
# Copyright:: Copyright 2008-2016, Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
class Chef
class Platform
class << self
def windows?
ChefConfig.windows?
end
def windows_nano_server?
return false unless windows?
require "win32/registry" unless defined?(Win32::Registry)
# This method may be called before ohai runs (e.g., it may be used to
# determine settings in config.rb). Chef::Win32::Registry.new uses
# node attributes to verify the machine architecture which aren't
# accessible before ohai runs.
nano = nil
key = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Server\\ServerLevels"
access = ::Win32::Registry::KEY_QUERY_VALUE | 0x0100 # nano is 64-bit only
begin
::Win32::Registry::HKEY_LOCAL_MACHINE.open(key, access) do |reg|
nano = reg["NanoServer"]
end
rescue ::Win32::Registry::Error
# If accessing the registry key failed, then we're probably not on
# nano. Fail through.
end
nano == 1
end
def supports_msi?
return false unless windows?
require "win32/registry" unless defined?(Win32::Registry)
key = "System\\CurrentControlSet\\Services\\msiserver"
access = ::Win32::Registry::KEY_QUERY_VALUE
begin
::Win32::Registry::HKEY_LOCAL_MACHINE.open(key, access) do |reg|
true
end
rescue ::Win32::Registry::Error
false
end
end
def supports_powershell_execution_bypass?(node)
node[:languages] && node[:languages][:powershell] &&
node[:languages][:powershell][:version].to_i >= 3
end
def supports_dsc?(node)
node[:languages] && node[:languages][:powershell] &&
node[:languages][:powershell][:version].to_i >= 4
end
def supports_dsc_invoke_resource?(node)
supports_dsc?(node) &&
supported_powershell_version?(node, "5.0.10018.0")
end
def supports_refresh_mode_enabled?(node)
supported_powershell_version?(node, "5.0.10586.0")
end
def dsc_refresh_mode_disabled?(node)
require_relative "../util/powershell/cmdlet"
cmdlet = Chef::Util::Powershell::Cmdlet.new(node, "Get-DscLocalConfigurationManager", :object)
metadata = cmdlet.run!.return_value
metadata["RefreshMode"] == "Disabled"
end
def supported_powershell_version?(node, version_string)
return false unless node[:languages] && node[:languages][:powershell]
require "rubygems" unless defined?(Gem)
Gem::Version.new(node[:languages][:powershell][:version]) >=
Gem::Version.new(version_string)
end
end
end
end
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