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|
# frozen_string_literal: true
require 'rack/attack/base_proxy'
module Rack
class Attack
module StoreProxy
class DalliProxy < BaseProxy
def self.handle?(store)
return false unless defined?(::Dalli)
# Consider extracting to a separate Connection Pool proxy to reduce
# code here and handle clients other than Dalli.
if defined?(::ConnectionPool) && store.is_a?(::ConnectionPool)
store.with { |conn| conn.is_a?(::Dalli::Client) }
else
store.is_a?(::Dalli::Client)
end
end
def initialize(client)
super(client)
stub_with_if_missing
end
def read(key)
rescuing do
with do |client|
client.get(key)
end
end
end
def write(key, value, options = {})
rescuing do
with do |client|
client.set(key, value, options.fetch(:expires_in, 0), raw: true)
end
end
end
def increment(key, amount, options = {})
rescuing do
with do |client|
client.incr(key, amount, options.fetch(:expires_in, 0), amount)
end
end
end
def delete(key)
rescuing do
with do |client|
client.delete(key)
end
end
end
private
def stub_with_if_missing
unless __getobj__.respond_to?(:with)
class << self
def with
yield __getobj__
end
end
end
end
def rescuing
yield
rescue Dalli::DalliError
nil
end
end
end
end
end
|
