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Versions: 14
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Contents
require 'sym/app/private_key/decryptor'
require 'sym/app/password/cache'
require 'sym/errors'
module Sym
module App
module PrivateKey
class Decryptor
include Sym
attr_accessor :encrypted_key, :input_handler, :password_cache
def initialize(encrypted_key, input_handler, password_cache)
self.encrypted_key = encrypted_key
self.input_handler = input_handler
self.password_cache = password_cache
@cache_checked = false
end
def key
return nil if encrypted_key.nil?
decrypted_key = nil
if should_decrypt?
begin
retries ||= 0
p = determine_key_password
decrypted_key = decrypt(p)
# if the password is valid, let's add it to the cache.
password_cache[encrypted_key] = p
rescue ::OpenSSL::Cipher::CipherError => e
input_handler.puts 'Invalid password. Please try again.'
if ((retries += 1) < 3)
retry
else
raise(Sym::Errors::InvalidPasswordProvidedForThePrivateKey.new('Invalid password.'))
end
end
else
decrypted_key = encrypted_key
end
decrypted_key
end
private
def should_decrypt?
encrypted_key && (encrypted_key.length > 32)
end
def decrypt(password)
decr_password(encrypted_key, password)
end
def determine_key_password
check_cache || ask_user
end
def ask_user
input_handler.ask
end
def check_cache
return nil if @cache_checked
@cache_checked = true
password_cache[encrypted_key]
end
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems