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Versions: 10
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Stored size: 1.72 KB
Contents
# frozen_string_literal: true
module PaypalAPI
class WebhookVerifier
#
# Stores certifiactes in-memory.
#
# New values are added to this in-memory cache and application cache.
# When fetching value it firstly looks to the memory cache and then to the app cache.
#
# @api private
#
class CertsCache
# Current application cache
# @api private
attr_reader :app_cache
# Hash storage of certificate public keys
# @api private
attr_reader :storage
# Initializes certificates cache
#
# @param app_cache [#fetch, nil] Application cache that can store
# certificates between redeploys
#
# @return [CertsCache]
def initialize(app_cache)
@app_cache = app_cache || NullCache
@storage = {}
end
# Fetches value from cache
#
# @param key [String] Cache key
# @param block [Proc] Proc to fetch certificate text
#
# @return [OpenSSL::PKey::PKey] Certificate Public Key
def fetch(key, &block)
openssl_pub_key = read(key)
return openssl_pub_key if openssl_pub_key
cert_string = app_cache.fetch(key, &block)
cert = OpenSSL::X509::Certificate.new(cert_string)
write(key, cert.public_key)
end
private
def write(key, value)
storage[key] = value
end
def read(key)
storage[key]
end
end
#
# Null-object cache class.
# Implements only #read and #write method.
#
# @api private
#
class NullCache
# Just calls provided block
# @param _key [String] Cache key
# @return [String] block result
def self.fetch(_key)
yield
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems