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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.
#
require 'chef/win32/api/system' if RUBY_PLATFORM =~ /mswin|mingw32|windows/
class Chef
class Provider
class Env
class Windows < Chef::Provider::Env
include Chef::ReservedNames::Win32::API::System if RUBY_PLATFORM =~ /mswin|mingw32|windows/
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_
ENV[@new_resource.key_name] = @new_resource.value
broadcast_env_change
end
def delete_env
obj = env_obj(@new_resource.key_name)
if obj
obj.delete_
ENV.delete(@new_resource.key_name)
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 = WmiLite::Wmi.new
# Note that by design this query is case insensitive with regard to key_name
environment_variables = wmi.query("select * from Win32_Environment where name = '#{key_name}'")
if environment_variables && environment_variables.length > 0
environment_variables[0].wmi_ole_object
end
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
flags = SMTO_BLOCK | SMTO_ABORTIFHUNG | SMTO_NOTIMEOUTIFNOTHUNG
SendMessageTimeoutA(HWND_BROADCAST, WM_SETTINGCHANGE, 0, FFI::MemoryPointer.from_string('Environment').address, flags, 5000, nil)
end
end
end
end
end
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