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Decoding rails cookies from rails console
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# Run from 'rails console' | |
# Example cookie value. To find in Chrome: Inspect > Resources > Cookies | |
cookie = "cEJPOHAwUXdmMS9HK3gyVVYyNVR2QU03Q0ZhclZYNmRrN3RoelhrenQ3ZVhsSEtOTytQR29aZG1ZZWZmK254Y01QM2hyTVZMNlFOcWNCRytzM0pac0hpbFVWTUoxZEVicEZERXIzbEJENkJ4QVBZcDQyM24rclQxbnRFeXpkMVRicTdGMkVSU2F1U0FVcEdiYVBsRVFveThlMndPdDBlaThVVkl4TkFreUc0PS0tRFFmdlFzQnkrSmROT1ZNdnpjcnA4Zz09--3bf330ec809351525bd9df2c905a81a3bcc93c81" | |
# Example secret_key_base found in config/secrets.yml | |
secret_key_base = "df3def2698eb651febcb5ca64c3203a3cb3ff988e7ee5c4fd66135a24ddf5009ae0f95dee1e1d2e443538e647178f0cd87acc98d1082659bb03d89b8af1f2252" | |
key_generator = ActiveSupport::KeyGenerator.new(secret_key_base, iterations: 1000) | |
secret = key_generator.generate_key("encrypted cookie") | |
sign_secret = key_generator.generate_key("signed encrypted cookie") | |
encryptor = ActiveSupport::MessageEncryptor.new(secret, sign_secret, serializer: ActiveSupport::MessageEncryptor::NullSerializer) | |
puts encryptor.decrypt_and_verify(URI.unescape(cookie)) | |
# Should output | |
# {"session_id":"0cbf92b20f9d7e75018b395ae245ace9","_csrf_token":"dW85TO7v0v5bmE/UAMcukjcfOTXeiU4S6pMJml39thw=","user_id":1} |
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