Class: Arcanus::Chest

Inherits:
Object
  • Object
show all
Defined in:
lib/arcanus/chest.rb

Overview

Encapsulates the collection of encrypted secrets managed by Arcanus.

Defined Under Namespace

Classes: Item

Constant Summary collapse

SIGNATURE_SIZE_BITS =

rubocop:disable Metrics/ClassLength

256

Instance Method Summary collapse

Constructor Details

#initialize(key:, chest_file_path:) ⇒ Chest

Returns a new instance of Chest.



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# File 'lib/arcanus/chest.rb', line 11

def initialize(key:, chest_file_path:)
  @key = key
  @chest_file_path = chest_file_path
  @original_encrypted_hash = YAML.load_file(chest_file_path).to_hash
  @original_decrypted_hash = decrypt_hash(@original_encrypted_hash)
  @hash = Utils.deep_dup(@original_decrypted_hash)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_sym) ⇒ Object

Provides access to chest items using regular method calls instead of hash accesses.



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# File 'lib/arcanus/chest.rb', line 39

def method_missing(method_sym, *)
  method_name = method_sym.to_s
  if @hash.key?(method_name)
    value = @hash[method_name]
    if value.is_a?(Hash)
      Item.new(value, [method_name])
    else
      value
    end
  else
    raise KeyError,
          "Key '#{method_name}' does not exist in this Arcanus chest",
          caller
  end
end

Instance Method Details

#[](key) ⇒ Object

Access the chest as if it were a hash.

Parameters:

  • key (String)

Returns:

  • (Object) 


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# File 'lib/arcanus/chest.rb', line 23

def [](key)
  @hash[key]
end

#contents ⇒ Object

Returns the contents of the chest as a hash.



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# File 'lib/arcanus/chest.rb', line 33

def contents
  @hash
end

#fetch(*args) ⇒ Object

Fetch key from the chest as if it were a hash.



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# File 'lib/arcanus/chest.rb', line 28

def fetch(*args)
  @hash.fetch(*args)
end

#get(key_path) ⇒ Object

Get value at the specified key path.

Parameters:

  • key_path (String)

Returns:

  • (Object) 


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# File 'lib/arcanus/chest.rb', line 72

def get(key_path)
  keys = key_path.split('.')
  keys.inject(@hash) { |hash, key| hash[key] }
rescue NoMethodError
  raise Arcanus::Errors::InvalidKeyPathError,
        "Key path '#{key_path}' does not correspond to an actual key"
end

#save ⇒ Object

For each key in the chest, encrypt the new value if it has changed.

The goal is to create a file where the only lines that differ are the keys that changed.



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# File 'lib/arcanus/chest.rb', line 88

def save
  modified_hash =
    process_hash_changes(@original_encrypted_hash, @original_decrypted_hash, @hash)

  File.open(@chest_file_path, 'w') do |f|
    f.puts('# Do not edit this file directly! Run `arcanus edit`')
    f.write(modified_hash.to_yaml)
  end
end

#set(key_path, value) ⇒ Object

Set value for the specified key path.

Parameters:

  • key_path (String)
  • value (Object) 


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# File 'lib/arcanus/chest.rb', line 59

def set(key_path, value)
  keys = key_path.split('.')
  nested_hash = keys[0..-2].inject(@hash) { |hash, key| hash[key] }
  nested_hash[keys[-1]] = value
rescue NoMethodError
  raise Arcanus::Errors::InvalidKeyPathError,
        "Key path '#{key_path}' does not correspond to an actual key"
end

#update(new_hash) ⇒ Object 



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# File 'lib/arcanus/chest.rb', line 80

def update(new_hash)
  @hash = new_hash
end