mbyczkowski
/ with_active_support.rb
Last active
September 28, 2023 03:56
— forked from tonytonyjan/rails_42_with_active_support.rb
session cookie decrypter for Rails 4.2+
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| require 'cgi' | |
| require 'json' | |
| require 'active_support' | |
| def verify_and_decrypt_session_cookie(cookie, secret_key_base) | |
| cookie = CGI::unescape(cookie) | |
| salt = 'encrypted cookie' | |
| signed_salt = 'signed encrypted cookie' | |
| key_generator = ActiveSupport::KeyGenerator.new(secret_key_base, iterations: 1000) | |
| secret = key_generator.generate_key(salt)[0, ActiveSupport::MessageEncryptor.key_len] |