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# frozen_string_literal: true
module Gitlab
module EtagCaching
class Store
EXPIRY_TIME = 20.minutes
SHARED_STATE_NAMESPACE = 'etag:'.freeze
def get(key)
Gitlab::Redis::SharedState.with { |redis| redis.get(redis_shared_state_key(key)) }
end
def touch(key, only_if_missing: false)
etag = generate_etag
Gitlab::Redis::SharedState.with do |redis|
redis.set(redis_shared_state_key(key), etag, ex: EXPIRY_TIME, nx: only_if_missing)
end
etag
end
private
def generate_etag
SecureRandom.hex
end
def redis_shared_state_key(key)
raise 'Invalid key' if !Rails.env.production? && !Gitlab::EtagCaching::Router.match(key)
"#{SHARED_STATE_NAMESPACE}#{key}"
end
end
end
end
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