Add dhparam, rsa_private_key and rsa_public_key resources

Ported from the openssl cookbook. I've done all the major refactoring there to shake the bugs out. This is just reformatted to use the mixin instead of a cookbook helper and to be library style so it works in core chef.

Signed-off-by: Tim Smith <tsmith@chef.io>

1 files changed, 57 insertions, 0 deletions

diff --git a/lib/chef/resource/openssl_dhparam.rb b/lib/chef/resource/openssl_dhparam.rb
new file mode 100644
index 0000000000..6c261a5a8f
--- /dev/null
+++ b/lib/chef/resource/openssl_dhparam.rb
@@ -0,0 +1,57 @@
+#
+# Copyright:: Copyright 2009-2018, 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
+    # a resource for generating 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.
+    class OpensslDhparam < Chef::Resource
+      require "chef/mixin/openssl"
+      include Chef::Mixin::OpenSSL
+
+      resource_name :openssl_dhparam
+
+      property :path,        String, name_property: true
+      property :key_length,  equal_to: [1024, 2048, 4096, 8192], default: 2048
+      property :generator,   equal_to: [2, 5], default: 2
+      property :owner,       String, default: lazy { node["platform"] == "windows" ? "Adminstrator" : "root" }
+      property :group,       String, default: lazy { node["root_group"] }
+      property :mode,        [Integer, String], default: "0640"
+
+      action :create do
+        unless dhparam_pem_valid?(new_resource.path)
+          converge_by("Create a dhparam file #{new_resource.path}") do
+            dhparam_content = gen_dhparam(new_resource.key_length, new_resource.generator).to_pem
+
+            declare_resource(: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
+  end
+end