/usr/lib/ruby/vendor_ruby/chef/resource/chef_data_bag_item.rb is in ruby-cheffish 4.0.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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require 'chef/config'
require 'cheffish/base_resource'
require 'chef/chef_fs/data_handler/data_bag_item_data_handler'
require 'chef/encrypted_data_bag_item'
class Chef
class Resource
class ChefDataBagItem < Cheffish::BaseResource
resource_name :chef_data_bag_item
def initialize(*args)
super
if !property_is_set?(:data_bag) && run_context.cheffish.current_data_bag
data_bag run_context.cheffish.current_data_bag
end
encryption = run_context.cheffish.current_data_bag_item_encryption
if encryption
encrypt true if encryption[:encrypt_all]
secret encryption[:secret] if encryption[:secret]
secret_path encryption[:secret_path] || run_context.config[:encrypted_data_bag_secret] if encryption[:secret_path] || run_context.config[:encrypted_data_bag_secret]
encryption_cipher encryption[:encryption_cipher] if encryption[:encryption_cipher]
encryption_version encryption[:encryption_version] || run_context.config[:data_bag_encrypt_version] if encryption[:encryption_version] || run_context.config[:data_bag_encrypt_version]
old_secret encryption[:old_secret] if encryption[:old_secret]
old_secret_path encryption[:old_secret_path] if encryption[:old_secret_path]
end
end
# If data_bag and id are not specified, take them from name.
# name can either be id, or data_bag/id
property :id, String, default: lazy { name.split('/', 2)[-1] }
property :data_bag, String, default: lazy {
split = name.split('/', 2)
split.size >= 2 ? split[0] : nil
}
property :raw_data, Hash
# If secret or secret_path are set, encrypt is assumed true. encrypt exists mainly for with_secret and with_secret_path
property :encrypt, Boolean, default: lazy {
if secret.nil? && secret_path.nil?
false
else
true
end
}
property :secret, String
property :secret_path, String
property :encryption_version, Integer
# Old secret (or secrets) to read the old data bag when we are changing keys and re-encrypting data
property :old_secret, [String, Array]
property :old_secret_path, [String, Array]
# value 'ip_address', '127.0.0.1'
# value [ 'pushy', 'port' ], '9000'
# value 'ip_addresses' do |existing_value|
# (existing_value || []) + [ '127.0.0.1' ]
# end
# value 'ip_address', :delete
attr_reader :raw_data_modifiers
def value(raw_data_path, value=NOT_PASSED, &block)
@raw_data_modifiers ||= []
if value != NOT_PASSED
@raw_data_modifiers << [ raw_data_path, value ]
elsif block
@raw_data_modifiers << [ raw_data_path, block ]
else
raise "value requires either a value or a block"
end
end
action :create do
differences = calculate_differences
if current_resource_exists?
if differences.size > 0
description = [ "update data bag item #{new_resource.id} at #{rest.url}" ] + differences
converge_by description do
rest.put("data/#{new_resource.data_bag}/#{new_resource.id}", normalize_for_put(new_json))
end
end
else
description = [ "create data bag item #{new_resource.id} at #{rest.url}" ] + differences
converge_by description do
rest.post("data/#{new_resource.data_bag}", normalize_for_post(new_json))
end
end
end
action :delete do
if current_resource_exists?
converge_by "delete data bag item #{new_resource.id} at #{rest.url}" do
rest.delete("data/#{new_resource.data_bag}/#{new_resource.id}")
end
end
end
action_class.class_eval do
def load_current_resource
begin
json = rest.get("data/#{new_resource.data_bag}/#{new_resource.id}")
resource = Chef::Resource::ChefDataBagItem.new(new_resource.name, run_context)
resource.raw_data json
@current_resource = resource
rescue Net::HTTPServerException => e
if e.response.code == "404"
@current_resource = not_found_resource
else
raise
end
end
# Determine if data bag is encrypted and if so, what its version is
first_real_key, first_real_value = (current_resource.raw_data || {}).select { |key, value| key != 'id' && !value.nil? }.first
if first_real_value
if first_real_value.is_a?(Hash) &&
first_real_value['version'].is_a?(Integer) &&
first_real_value['version'] > 0 &&
first_real_value.has_key?('encrypted_data')
current_resource.encrypt true
current_resource.encryption_version first_real_value['version']
decrypt_error = nil
# Check if the desired secret is the one (which it generally should be)
if new_resource.secret || new_resource.secret_path
begin
Chef::EncryptedDataBagItem::Decryptor.for(first_real_value, new_secret).for_decrypted_item
current_resource.secret new_secret
rescue Chef::EncryptedDataBagItem::DecryptionFailure
decrypt_error = $!
end
end
# If the current secret doesn't work, look through the specified old secrets
if !current_resource.secret
old_secrets = []
if new_resource.old_secret
old_secrets += Array(new_resource.old_secret)
end
if new_resource.old_secret_path
old_secrets += Array(new_resource.old_secret_path).map do |secret_path|
Chef::EncryptedDataBagItem.load_secret(new_resource.old_secret_file)
end
end
old_secrets.each do |secret|
begin
Chef::EncryptedDataBagItem::Decryptor.for(first_real_value, secret).for_decrypted_item
current_resource.secret secret
rescue Chef::EncryptedDataBagItem::DecryptionFailure
decrypt_error = $!
end
end
# If we couldn't figure out the secret, emit a warning (this isn't a fatal flaw unless we
# need to reuse one of the values from the data bag)
if !current_resource.secret
if decrypt_error
Chef::Log.warn "Existing data bag is encrypted, but could not decrypt: #{decrypt_error.message}."
else
Chef::Log.warn "Existing data bag is encrypted, but no secret was specified."
end
end
end
end
else
# There are no encryptable values, so pretend encryption is the same as desired
current_resource.encrypt(new_resource.encrypt) unless new_resource.encrypt.nil?
current_resource.encryption_version(new_resource.encryption_version) if new_resource.encryption_version
if new_resource.secret || new_resource.secret_path
current_resource.secret new_secret
end
end
end
def new_json
@new_json ||= begin
if new_encrypt
# Encrypt new stuff
result = encrypt(new_decrypted, new_secret, new_resource.encryption_version)
else
result = new_decrypted
end
result
end
end
def new_encrypt
new_resource.encrypt.nil? ? current_resource.encrypt : new_resource.encrypt
end
def new_secret
@new_secret ||= begin
if new_resource.secret
new_resource.secret
elsif new_resource.secret_path
Chef::EncryptedDataBagItem.load_secret(new_resource.secret_path)
elsif new_resource.encrypt.nil?
current_resource.secret
else
raise "Data bag item #{new_resource.name} has encryption on but no secret or secret_path is specified"
end
end
end
def decrypt(json, secret)
Chef::EncryptedDataBagItem.new(json, secret).to_hash
end
def encrypt(json, secret, version)
old_version = run_context.config[:data_bag_encrypt_version]
run_context.config[:data_bag_encrypt_version] = version
begin
Chef::EncryptedDataBagItem.encrypt_data_bag_item(json, secret)
ensure
run_context.config[:data_bag_encrypt_version] = old_version
end
end
# Get the desired (new) json pre-encryption, for comparison purposes
def new_decrypted
@new_decrypted ||= begin
if new_resource.complete
result = new_resource.raw_data || {}
else
result = current_decrypted.merge(new_resource.raw_data || {})
end
result['id'] = new_resource.id
result = apply_modifiers(new_resource.raw_data_modifiers, result)
end
end
# Get the current json decrypted, for comparison purposes
def current_decrypted
@current_decrypted ||= begin
if current_resource.secret
decrypt(current_resource.raw_data || { 'id' => new_resource.id }, current_resource.secret)
elsif current_resource.encrypt
raise "Could not decrypt current data bag item #{current_resource.name}"
else
current_resource.raw_data || { 'id' => new_resource.id }
end
end
end
# Figure out the differences between new and current
def calculate_differences
if new_encrypt
if current_resource.encrypt
# Both are encrypted, check if the encryption type is the same
description = ''
if new_secret != current_resource.secret
description << ' with new secret'
end
if new_resource.encryption_version != current_resource.encryption_version
description << " from v#{current_resource.encryption_version} to v#{new_resource.encryption_version} encryption"
end
if description != ''
# Encryption is different, we're reencrypting
differences = [ "re-encrypt#{description}"]
else
# Encryption is the same, we're just updating
differences = []
end
else
# New stuff should be encrypted, old is not. Encrypting.
differences = [ "encrypt with v#{new_resource.encryption_version} encryption" ]
end
# Get differences in the actual json
if current_resource.secret
json_differences(current_decrypted, new_decrypted, false, '', differences)
elsif current_resource.encrypt
# Encryption is different and we can't read the old values. Only allow the change
# if we're overwriting the data bag item
if !new_resource.complete
raise "Cannot encrypt #{new_resource.name} due to failure to decrypt existing resource. Set 'complete true' to overwrite or add the old secret as old_secret / old_secret_path."
end
differences = [ "overwrite data bag item (cannot decrypt old data bag item)"]
differences = (new_resource.raw_data.keys & current_resource.raw_data.keys).map { |key| "overwrite #{key}"}
differences += (new_resource.raw_data.keys - current_resource.raw_data.keys).map { |key| "add #{key}"}
differences += (current_resource.raw_data.keys - new_resource.raw_data.keys).map { |key| "remove #{key}" }
else
json_differences(current_decrypted, new_decrypted, false, '', differences)
end
else
if current_resource.encrypt
# New stuff should not be encrypted, old is. Decrypting.
differences = [ "decrypt data bag item to plaintext" ]
else
differences = []
end
json_differences(current_decrypted, new_decrypted, true, '', differences)
end
differences
end
#
# Helpers
#
def resource_class
Chef::Resource::ChefDataBagItem
end
def data_handler
Chef::ChefFS::DataHandler::DataBagItemDataHandler.new
end
def keys
{
'id' => :id,
'data_bag' => :data_bag,
'raw_data' => :raw_data
}
end
def not_found_resource
resource = super
resource.data_bag new_resource.data_bag
resource
end
def fake_entry
FakeEntry.new("#{new_resource.id}.json", FakeEntry.new(new_resource.data_bag))
end
end
end
end
end
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