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#
# Author:: Tyler Ball (<tball@getchef.com>)
# Copyright:: Copyright (c) 2010-2014 Opscode, 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/encrypted_data_bag_item/encryptor"
class Chef::EncryptedDataBagItem
# Common code for checking if a data bag appears encrypted
module CheckEncrypted
# Tries to autodetect if the item's raw hash appears to be encrypted.
def encrypted?(raw_data)
data = raw_data.reject { |k, _| k == "id" } # Remove the "id" key.
# Assume hashes containing only the "id" key are not encrypted.
# Otherwise, remove the keys that don't appear to be encrypted and compare
# the result with the hash. If some entry has been removed, then some entry
# doesn't appear to be encrypted and we assume the entire hash is not encrypted.
data.empty? ? false : data.reject { |_, v| !looks_like_encrypted?(v) } == data
end
private
# Checks if data looks like it has been encrypted by
# Chef::EncryptedDataBagItem::Encryptor::VersionXEncryptor. Returns
# true only when there is an exact match between the VersionXEncryptor
# keys and the hash's keys.
def looks_like_encrypted?(data)
return false unless data.is_a?(Hash) && data.has_key?("version")
case data["version"]
when 1
Chef::EncryptedDataBagItem::Encryptor::Version1Encryptor.encryptor_keys.sort == data.keys.sort
when 2
Chef::EncryptedDataBagItem::Encryptor::Version2Encryptor.encryptor_keys.sort == data.keys.sort
when 3
Chef::EncryptedDataBagItem::Encryptor::Version3Encryptor.encryptor_keys.sort == data.keys.sort
else
false # version means something else... assume not encrypted.
end
end
end
end
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