82 lines
2.5 KiB
Ruby
82 lines
2.5 KiB
Ruby
# frozen_string_literal: true
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# Support for both BCrypt and PBKDF2+SHA512 user passwords
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# Meant to be used exclusively with User model but extracted
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# to a concern for isolation and clarity.
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module EncryptedUserPassword
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extend ActiveSupport::Concern
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BCRYPT_PREFIX = '$2a$'
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PBKDF2_SHA512_PREFIX = '$pbkdf2-sha512$'
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BCRYPT_STRATEGY = :bcrypt
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PBKDF2_SHA512_STRATEGY = :pbkdf2_sha512
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# Use Devise DatabaseAuthenticatable#authenticatable_salt
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# unless encrypted password is PBKDF2+SHA512.
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def authenticatable_salt
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return super unless pbkdf2_password?
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Devise::Pbkdf2Encryptable::Encryptors::Pbkdf2Sha512.split_digest(encrypted_password)[:salt]
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end
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# Called by Devise during database authentication.
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# Also migrates the user password to the configured
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# encryption type (BCrypt or PBKDF2+SHA512), if needed.
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def valid_password?(password)
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return false unless password_matches?(password)
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migrate_password!(password)
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end
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def password=(new_password)
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@password = new_password # rubocop:disable Gitlab/ModuleWithInstanceVariables
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return unless new_password.present?
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self.encrypted_password = if Gitlab::FIPS.enabled?
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Devise::Pbkdf2Encryptable::Encryptors::Pbkdf2Sha512.digest(
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new_password,
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Devise::Pbkdf2Encryptable::Encryptors::Pbkdf2Sha512::STRETCHES,
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Devise.friendly_token[0, 16])
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else
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Devise::Encryptor.digest(self.class, new_password)
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end
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end
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private
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def password_strategy
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return BCRYPT_STRATEGY if encrypted_password.starts_with?(BCRYPT_PREFIX)
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return PBKDF2_SHA512_STRATEGY if encrypted_password.starts_with?(PBKDF2_SHA512_PREFIX)
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:unknown
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end
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def pbkdf2_password?
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password_strategy == PBKDF2_SHA512_STRATEGY
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end
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def bcrypt_password?
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password_strategy == BCRYPT_STRATEGY
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end
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def password_matches?(password)
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if bcrypt_password?
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Devise::Encryptor.compare(self.class, encrypted_password, password)
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elsif pbkdf2_password?
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Devise::Pbkdf2Encryptable::Encryptors::Pbkdf2Sha512.compare(encrypted_password, password)
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end
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end
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def migrate_password!(password)
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return true if password_strategy == encryptor
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update_attribute(:password, password)
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end
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def encryptor
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return BCRYPT_STRATEGY unless Gitlab::FIPS.enabled?
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PBKDF2_SHA512_STRATEGY
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end
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end
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