Factor session access into session manager. #598
Merged
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This PR is the first step in refactoring session access into a session manager. Eventually, the session manager will be pluggable, so that implementation can choose to override session management.
The only API impacted by this PR is the SessionStrategy constructor, which now requires a
deserializeUser
function. Because the SessionStrategy is instantiated internally by passport, it is unlikely that this will cause any compatibility issues. If an application were, for some reason, constructing the SessionStrategy outside of passport, then this argument will need to be passed.