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#
# Author:: Adam Edwards (<adamed@chef.io>)
#
# Copyright:: Copyright 2014-2016, Chef Software, Inc.
#
# 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 "mixlib/shellout"
require "chef/mixin/windows_architecture_helper"
require "chef/util/powershell/cmdlet_result"
class Chef
class Util
class Powershell
class Cmdlet
def initialize(node, cmdlet, output_format=nil, output_format_options={})
@output_format = output_format
@node = node
case output_format
when nil
@json_format = false
when :json
@json_format = true
when :text
@json_format = false
when :object
@json_format = true
else
raise ArgumentError, "Invalid output format #{output_format} specified"
end
@cmdlet = cmdlet
@output_format_options = output_format_options
end
attr_reader :output_format
def run(switches={}, execution_options={}, *arguments)
streams = { :json => CmdletStream.new("json"),
:verbose => CmdletStream.new("verbose"),
}
arguments_string = arguments.join(" ")
switches_string = command_switches_string(switches)
json_depth = 5
if @json_format && @output_format_options.has_key?(:depth)
json_depth = @output_format_options[:depth]
end
json_command = @json_format ? " | convertto-json -compress -depth #{json_depth} "\
"> #{streams[:json].path}" : ""
redirections = "4> '#{streams[:verbose].path}'"
command_string = "powershell.exe -executionpolicy bypass -noprofile -noninteractive "\
"-command \"trap [Exception] {write-error -exception "\
"($_.Exception.Message);exit 1};#{@cmdlet} #{switches_string} "\
"#{arguments_string} #{redirections}"\
"#{json_command}\";if ( ! $? ) { exit 1 }"
augmented_options = {:returns => [0], :live_stream => false}.merge(execution_options)
command = Mixlib::ShellOut.new(command_string, augmented_options)
status = nil
with_os_architecture(@node) do
status = command.run_command
end
CmdletResult.new(status, streams, @output_format)
end
def run!(switches={}, execution_options={}, *arguments)
result = run(switches, execution_options, arguments)
if ! result.succeeded?
raise Chef::Exceptions::PowershellCmdletException, "Powershell Cmdlet failed: #{result.stderr}"
end
result
end
protected
include Chef::Mixin::WindowsArchitectureHelper
def validate_switch_name!(switch_parameter_name)
if !!(switch_parameter_name =~ /\A[A-Za-z]+[_a-zA-Z0-9]*\Z/) == false
raise ArgumentError, "`#{switch_parameter_name}` is not a valid PowerShell cmdlet switch parameter name"
end
end
def escape_parameter_value(parameter_value)
parameter_value.gsub(/(`|'|"|#)/,'`\1')
end
def escape_string_parameter_value(parameter_value)
"'#{escape_parameter_value(parameter_value)}'"
end
def command_switches_string(switches)
command_switches = switches.map do | switch_name, switch_value |
if switch_name.class != Symbol
raise ArgumentError, "Invalid type `#{switch_name} `for PowerShell switch '#{switch_name}'. The switch must be specified as a Symbol'"
end
validate_switch_name!(switch_name)
switch_argument = ""
switch_present = true
case switch_value
when Numeric
switch_argument = switch_value.to_s
when Float
switch_argument = switch_value.to_s
when FalseClass
switch_present = false
when TrueClass
when String
switch_argument = escape_string_parameter_value(switch_value)
else
raise ArgumentError, "Invalid argument type `#{switch_value.class}` specified for PowerShell switch `:#{switch_name}`. Arguments to PowerShell must be of type `String`, `Numeric`, `Float`, `FalseClass`, or `TrueClass`"
end
switch_present ? ["-#{switch_name.to_s.downcase}", switch_argument].join(" ").strip : ""
end
command_switches.join(" ")
end
class CmdletStream
def initialize(name)
@filename = Dir::Tmpname.create(name) {}
ObjectSpace.define_finalizer(self, self.class.destroy(@filename))
end
def path
@filename
end
def read
if File.exist? @filename
File.open(@filename, "rb:bom|UTF-16LE") do |f|
f.read.encode("UTF-8")
end
end
end
def self.destroy(name)
proc { File.delete(name) if File.exists? name }
end
end
end
end
end
end
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