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Module: ActionDispatch::Cookies::ChainedCookieJars

Overview

Include in a cookie jar to allow chaining, e.g. cookies.permanent.signed.

Instance Attribute Summary

Instance Method Summary

Instance Attribute Details

#prepare_upgrade_legacy_hmac_aes_cbc_cookies? ⇒ Boolean (readonly, private)

[ GitHub ] 

  


# File 'actionpack/lib/action_dispatch/middleware/cookies.rb', line 298



def prepare_upgrade_legacy_hmac_aes_cbc_cookies?
  request.secret_key_base.present? &&
    request.authenticated_encrypted_cookie_salt.present? &&
    !request.use_authenticated_cookie_encryption
end


  








  

    #upgrade_legacy_hmac_aes_cbc_cookies?  ⇒ Boolean  (readonly, private)
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/cookies.rb', line 291



def upgrade_legacy_hmac_aes_cbc_cookies?
  request.secret_key_base.present? &&
    request.encrypted_signed_cookie_salt.present? &&
    request.encrypted_cookie_salt.present? &&
    request.use_authenticated_cookie_encryption
end


  







Instance Method Details



  

    #encrypted  
  



  

    

Returns a jar that’ll automatically encrypt cookie values before sending them to the client and will decrypt them for read. If the cookie was tampered with by the user (or a 3rd party), nil will be returned.



If config.action_dispatch.encrypted_cookie_salt and config.action_dispatch.encrypted_signed_cookie_salt are both set, legacy cookies encrypted with HMAC AES-256-CBC will be transparently upgraded.



This jar requires that you set a suitable secret for the verification on your app’s secret_key_base.



Example:



cookies.encrypted[:discount] = 45
# => Set-Cookie: discount=DIQ7fw==--K3n//8vvnSbGq9dA--7Xh91HfLpwzbj1czhBiwOg==; path=/

cookies.encrypted[:discount] # => 45


  



  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/cookies.rb', line 274



def encrypted
  @encrypted ||= EncryptedKeyRotatingCookieJar.new(self)
end


  










  

    #permanent  
  



  

    

Returns a jar that’ll automatically set the assigned cookies to have an expiration date 20 years from now. Example:



cookies.permanent[:prefers_open_id] = true
# => Set-Cookie: prefers_open_id=true; path=/; expires=Sun, 16-Dec-2029 03:24:16 GMT



This jar is only meant for writing. You’ll read permanent cookies through the regular accessor.



This jar allows chaining with the signed jar as well, so you can set permanent, signed cookies. Examples:



cookies.permanent.signed[:remember_me] = current_user.id
# => Set-Cookie: remember_me=BAhU--848956038e692d7046deab32b7131856ab20e14e; path=/; expires=Sun, 16-Dec-2029 03:24:16 GMT


  



  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/cookies.rb', line 234



def permanent
  @permanent ||= PermanentCookieJar.new(self)
end


  








  

    #signed  
  



  

    

Returns a jar that’ll automatically generate a signed representation of cookie value and verify it when reading from the cookie again. This is useful for creating cookies with values that the user is not supposed to change. If a signed cookie was tampered with by the user (or a 3rd party), nil will be returned.



This jar requires that you set a suitable secret for the verification on your app’s secret_key_base.



Example:



cookies.signed[:discount] = 45
# => Set-Cookie: discount=BAhpMg==--2c1c6906c90a3bc4fd54a51ffb41dffa4bf6b5f7; path=/

cookies.signed[:discount] # => 45


  



  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/cookies.rb', line 253



def signed
  @signed ||= SignedKeyRotatingCookieJar.new(self)
end


  










  

    #signed_or_encrypted  
  



  

    

Returns the #signed or #encrypted jar, preferring #encrypted if secret_key_base is set. Used by ::ActionDispatch::Session::CookieStore to avoid the need to introduce new cookie stores.


  



  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/cookies.rb', line 281



def signed_or_encrypted
  @signed_or_encrypted ||=
    if request.secret_key_base.present?
      encrypted
    else
      signed
    end
end