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#
# 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.
#
require_relative "../resource"
class Chef
class Resource
class OpensslDhparam < Chef::Resource
require_relative "../mixin/openssl_helper"
include Chef::Mixin::OpenSSLHelper
provides(:openssl_dhparam) { true }
description "Use the openssl_dhparam resource to generate dhparam.pem files. If a valid dhparam.pem file is found at the specified location, no new file will be created. If a file is found at the specified location but it is not a valid dhparam file, it will be overwritten."
introduced "14.0"
examples <<~DOC
Create a 1024bit dhparam file
```ruby
openssl_dhparam '/etc/ssl_files/dhparam.pem' do
key_length 1024
action :create
end
```
DOC
property :path, String,
description: "An optional property for specifying the path to write the file to if it differs from the resource block's name.",
name_property: true
property :key_length, Integer,
equal_to: [1024, 2048, 4096, 8192],
validation_message: "key_length must be 1024, 2048, 4096, or 8192.",
description: "The desired bit length of the generated key.",
default: 2048
property :generator, Integer,
equal_to: [2, 5],
validation_message: "generator must be either 2 or 5.",
description: "The desired Diffie-Hellmann generator.",
default: 2
property :owner, [String, Integer],
description: "The owner applied to all files created by the resource."
property :group, [String, Integer],
description: "The group ownership applied to all files created by the resource."
property :mode, [Integer, String],
description: "The permission mode applied to all files created by the resource.",
default: "0640"
action :create do
description "Create the dhparam file."
dhparam_content = nil
unless dhparam_pem_valid?(new_resource.path)
dhparam_content = gen_dhparam(new_resource.key_length, new_resource.generator).to_pem
Chef::Log.debug("Valid dhparam content not found at #{new_resource.path}, creating new")
end
file new_resource.path do
action :create
owner new_resource.owner
group new_resource.group
mode new_resource.mode
sensitive true
content dhparam_content
end
end
end
end
end
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