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#
# Author:: Pete Higgins (pete@peterhiggins.org)
# Copyright:: Copyright (c) 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.
#
Ohai.plugin(:DMI) do
provides "dmi"
# Map the linux component types to their rough Windows API equivalents
DMI_TO_WIN32OLE ||= {
chassis: "SystemEnclosure",
processor: "Processor",
bios: "Bios",
system: "ComputerSystemProduct",
base_board: "BaseBoard",
}.freeze
# This regex is in 3 parts for the different supported patterns in camel
# case names coming from the Windows API:
# * Typical camelcase, eg Depth, PartNumber, NumberOfPowerCords
# * Acronyms preceding camelcase, eg SMBIOSAssetTag
# * Acronyms that occur at the end of the name, eg SKU, DeviceID
#
# This cannot handle some property names, eg SMBIOSBIOSVersion.
# https://rubular.com/r/FBNtXod4wkZGAG
SPLIT_REGEX ||= /[A-Z][a-z0-9]+|[A-Z]{2,}(?=[A-Z][a-z0-9])|[A-Z]{2,}/.freeze
WINDOWS_TO_UNIX_KEYS ||= [
%w{vendor manufacturer},
%w{identifying_number serial_number},
%w{name family},
].freeze
collect_data(:windows) do
require "ohai/common/dmi"
require "wmi-lite/wmi"
wmi = WmiLite::Wmi.new
dmi Mash.new
# The Windows API returns property names in camel case, eg "SerialNumber",
# while `dmi` returns them as space separated strings, eg "Serial Number".
# `Ohai::Common::DMI.convenience_keys` expects property names in `dmi`'s
# format, so build two parallel hashes with the keys as they come from the
# Windows API and in a faked-out `dmi` version. After the call to
# `Ohai::Common::DMI.convenience_keys` replace the faked-out `dmi`
# collection with the one with the original property names.
DMI_TO_WIN32OLE.each do |dmi_key, ole_key|
wmi_objects = wmi.instances_of("Win32_#{ole_key}").map(&:wmi_ole_object)
split_name_properties = []
properties = []
wmi_objects.each do |wmi_object|
split_name_properties << Mash.new
properties << Mash.new
wmi_object.properties_.each do |property|
property_name = property.name
value = wmi_object.invoke(property_name)
split_name = property_name.scan(SPLIT_REGEX).join(" ")
split_name_properties.last[split_name] = value
properties.last[property_name] = value
end
end
dmi[dmi_key] = Mash.new(all_records: split_name_properties, _all_records: properties)
end
Ohai::Common::DMI.convenience_keys(dmi)
dmi.each_value do |records|
records[:all_records] = records.delete(:_all_records)
WINDOWS_TO_UNIX_KEYS.each do |windows_key, unix_key|
records[unix_key] = records.delete(windows_key) if records.key?(windows_key)
end
end
end
end
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