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#
# Author:: Adam Jacob (<adam@chef.io>)
# Author:: Tyler Cloke (<tyler@chef.io>)
# Copyright:: Copyright 2008-2017, 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.
#
require "chef/resource"
class Chef
class Resource
class Execute < Chef::Resource
resource_name :execute
provides :execute
identity_attr :command
description "Use the execute resource to execute a single command. Commands that"\
" are executed with this resource are (by their nature) not idempotent,"\
" as they are typically unique to the environment in which they are run."\
" Use not_if and only_if to guard this resource for idempotence."
# The ResourceGuardInterpreter wraps a resource's guards in another resource. That inner resource
# needs to behave differently during (for example) why_run mode, so we flag it here. For why_run mode
# we still want to execute the guard resource even if we are not executing the wrapping resource.
# Only execute resources (and subclasses) can be guard interpreters.
attr_accessor :is_guard_interpreter
default_action :run
def initialize(name, run_context = nil)
super
@command = name
@backup = 5
@default_guard_interpreter = :execute
@is_guard_interpreter = false
end
def command(arg = nil)
set_or_return(
:command,
arg,
:kind_of => [ String, Array ]
)
end
property :umask, [ String, Integer ]
property :creates, String
property :cwd, String
property :environment, Hash
alias :env :environment
property :group, [ String, Integer ]
property :live_stream, [ TrueClass, FalseClass ], default: false
property :returns, [ Integer, Array ], default: 0
property :timeout, [ Integer, Float ]
property :user, [ String, Integer ]
property :domain, String
property :password, String, sensitive: true
# lazy used to set default value of sensitive to true if password is set
property :sensitive, [ TrueClass, FalseClass ], default: lazy { |r| r.password ? true : false }
property :elevated, [ TrueClass, FalseClass ], default: false
def self.set_guard_inherited_attributes(*inherited_attributes)
@class_inherited_attributes = inherited_attributes
end
def self.guard_inherited_attributes(*inherited_attributes)
# Similar to patterns elsewhere, return attributes from this
# class and superclasses as a form of inheritance
ancestor_attributes = []
if superclass.respond_to?(:guard_inherited_attributes)
ancestor_attributes = superclass.guard_inherited_attributes
end
ancestor_attributes.concat(@class_inherited_attributes ? @class_inherited_attributes : []).uniq
end
def after_created
validate_identity_platform(user, password, domain, elevated)
identity = qualify_user(user, password, domain)
domain(identity[:domain])
user(identity[:user])
end
def validate_identity_platform(specified_user, password = nil, specified_domain = nil, elevated = false)
if node[:platform_family] == "windows"
if specified_user && password.nil?
raise ArgumentError, "A value for `password` must be specified when a value for `user` is specified on the Windows platform"
end
if elevated && !specified_user && !password
raise ArgumentError, "`elevated` option should be passed only with `username` and `password`."
end
else
if password || specified_domain
raise Exceptions::UnsupportedPlatform, "Values for `domain` and `password` are only supported on the Windows platform"
end
if elevated
raise Exceptions::UnsupportedPlatform, "Value for `elevated` is only supported on the Windows platform"
end
end
end
def qualify_user(specified_user, password = nil, specified_domain = nil)
domain = specified_domain
user = specified_user
if specified_user.nil? && ! specified_domain.nil?
raise ArgumentError, "The domain `#{specified_domain}` was specified, but no user name was given"
end
# if domain is provided in both username and domain
if specified_user && ((specified_user.include? '\\') || (specified_user.include? "@")) && specified_domain
raise ArgumentError, "The domain is provided twice. Username: `#{specified_user}`, Domain: `#{specified_domain}`. Please specify domain only once."
end
if ! specified_user.nil? && specified_domain.nil?
# Splitting username of format: Domain\Username
domain_and_user = user.split('\\')
if domain_and_user.length == 2
domain = domain_and_user[0]
user = domain_and_user[1]
elsif domain_and_user.length == 1
# Splitting username of format: Username@Domain
domain_and_user = user.split("@")
if domain_and_user.length == 2
domain = domain_and_user[1]
user = domain_and_user[0]
elsif domain_and_user.length != 1
raise ArgumentError, "The specified user name `#{user}` is not a syntactically valid user name"
end
end
end
if ( password || domain ) && user.nil?
raise ArgumentError, "A value for `password` or `domain` was specified without specification of a value for `user`"
end
{ domain: domain, user: user }
end
set_guard_inherited_attributes(
:cwd,
:environment,
:group,
:user,
:umask
)
end
end
end
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