Class: Clerk::JWKSCache

Inherits:
Object
  • Object
show all
Defined in:
lib/clerk/jwks_cache.rb

Instance Method Summary collapse

Constructor Details

#initialize(lifetime) ⇒ JWKSCache

Returns a new instance of JWKSCache.



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# File 'lib/clerk/jwks_cache.rb', line 5

def initialize(lifetime)
  @lifetime = lifetime
  @jwks = nil
  @last_update = nil
  @lock = Concurrent::ReadWriteLock.new
end

Instance Method Details

#fetch(sdk, force_refresh: false, kid_not_found: false) ⇒ Object 



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# File 'lib/clerk/jwks_cache.rb', line 12

def fetch(sdk, force_refresh: false, kid_not_found: false)
  should_refresh = @lock.with_read_lock do
    now = Time.now.to_i

    @jwks.nil? || @last_update.nil? || force_refresh ||
      (now - @last_update > @lifetime) ||
      (kid_not_found && now - @last_update > 300)
  end

  if should_refresh
    @lock.with_write_lock do
      @last_update = Time.now.to_i
      @jwks = begin
        sdk.jwks.get_jwks.keys.map(&:to_hash)
      rescue Clerk::Error, ClerkHttpClient::ApiError
        nil
      end
    end
  end

  @lock.with_read_lock do
    @jwks
  end
end