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rack-deadline is a simple rack middleware that automatically clears sessions that have been open too long (by default, 1 day). This is designed for use with cookie stores to mitigate the risk of session fixation, since it is impossible to invalidate older sessions with a pure cookie-based approach. It is impossible to enforce a deadline with the standard rack cookie session API. The expire_after setting is not part of the session itself (it's part of the cookie, and not cryptographically signed), and an attacker who has access to a previous cookie can just omit it when making a request. This stores a deadline inside the crytographically signed session, and once the deadline is passed, the session will no longer be valid.

installgem install rack-deadline
Authors

Jeremy Evans

304 total downloads 304 for this version
Owners

F183bcc4176b308c9edabe79299e448f

Licenses

MIT

Gemfile
gem 'rack-deadline', '~> 1.0.0'
Versions
  1. 1.0.0 January 28, 2014 (7.5 KB)