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#
# Author:: Doug MacEachern (<dougm@vmware.com>)
# Copyright:: Copyright (c) 2010 VMware, 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.
#
if RUBY_PLATFORM =~ /mswin|mingw32|windows/
require 'ruby-wmi'
require 'Win32API'
end
class Chef
class Provider
class Env
class Windows < Chef::Provider::Env
def create_env
obj = env_obj(@new_resource.key_name)
unless obj
obj = WIN32OLE.connect("winmgmts://").get("Win32_Environment").spawninstance_
obj.name = @new_resource.key_name
obj.username = "<System>"
end
obj.variablevalue = @new_resource.value
obj.put_
broadcast_env_change
end
def delete_env
obj = env_obj(@new_resource.key_name)
if obj
obj.delete_
broadcast_env_change
end
end
def env_value(key_name)
obj = env_obj(key_name)
return obj ? obj.variablevalue : nil
end
def env_obj(key_name)
WMI::Win32_Environment.find(:first,
:conditions => { :name => key_name })
end
#see: http://msdn.microsoft.com/en-us/library/ms682653%28VS.85%29.aspx
HWND_BROADCAST = 0xffff
WM_SETTINGCHANGE = 0x001A
SMTO_BLOCK = 0x0001
SMTO_ABORTIFHUNG = 0x0002
SMTO_NOTIMEOUTIFNOTHUNG = 0x0008
def broadcast_env_change
result = 0
flags = SMTO_BLOCK | SMTO_ABORTIFHUNG | SMTO_NOTIMEOUTIFNOTHUNG
@send_message ||= Win32API.new('user32', 'SendMessageTimeout', 'LLLPLLP', 'L')
@send_message.call(HWND_BROADCAST, WM_SETTINGCHANGE, 0, 'Environment', flags, 5000, result)
end
end
end
end
end
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