module HTTPX::Plugins::ResponseCache

   # File lib/httpx/plugins/response_cache.rb
21 def cacheable_request?(request)
22   CACHEABLE_VERBS.include?(request.verb) &&
23     (
24       !request.headers.key?("cache-control") || !request.headers.get("cache-control").include?("no-store")
25     )
26 end

   # File lib/httpx/plugins/response_cache.rb
28 def cacheable_response?(response)
29   response.is_a?(Response) &&
30     (
31       response.cache_control.nil? ||
32       # TODO: !response.cache_control.include?("private") && is shared cache
33       !response.cache_control.include?("no-store")
34     ) &&
35     CACHEABLE_STATUS_CODES.include?(response.status) &&
36     # RFC 2616 13.4 - A response received with a status code of 200, 203, 206, 300, 301 or
37     # 410 MAY be stored by a cache and used in reply to a subsequent
38     # request, subject to the expiration mechanism, unless a cache-control
39     # directive prohibits caching. However, a cache that does not support
40     # the Range and Content-Range headers MUST NOT cache 206 (Partial
41     # Content) responses.
42     response.status != 206 && (
43     response.headers.key?("etag") || response.headers.key?("last-modified") || response.fresh?
44   )
45 end

   # File lib/httpx/plugins/response_cache.rb
47 def cached_response?(response)
48   response.is_a?(Response) && response.status == 304
49 end

   # File lib/httpx/plugins/response_cache.rb
51 def extra_options(options)
52   options.merge(response_cache_store: Store.new)
53 end

   # File lib/httpx/plugins/response_cache.rb
17 def load_dependencies(*)
18   require_relative "response_cache/store"
19 end