Allow the v2 encryptor to serialize messages with Marshal
#44
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This is a follow-up on #39 that must be merged first.
I deliberately avoided allowing
Marshal
serialization in the v2 encryptor because 1)Marshal
has been a source of RCE vulnerabilities and 2) serializing messages as JSON allows for better interoperability, making it trivial to access sessions created with rack-session in other languages.However, it's impossible to swap
Marhal
withJSON
without breaking users' code that relies onMarhal
behavior thatJSON
doesn't mimic (e.g., preserving ruby symbols).So... I see 3 ways forward:
Happy to hear some feedback.