HttpCache

Constructor.

The available options are:

• debug: If true, the traces are added as a HTTP header to ease debugging

• default_ttl The number of seconds that a cache entry should be considered fresh when no explicit freshness information is provided in a response. Explicit Cache-Control or Expires headers override this value. (default: 0)

• private_headers Set of request headers that trigger "private" cache-control behavior on responses that don't explicitly state whether the response is public or private via a Cache-Control directive. (default: Authorization and Cookie)

• allow_reload Specifies whether the client can force a cache reload by including a Cache-Control "no-cache" directive in the request. Set it to true for compliance with RFC 2616. (default: false)

• allow_revalidate Specifies whether the client can force a cache revalidate by including a Cache-Control "max-age=0" directive in the request. Set it to true for compliance with RFC 2616. (default: false)

• stalewhilerevalidate Specifies the default number of seconds (the granularity is the second as the Response TTL precision is a second) during which the cache can immediately return a stale response while it revalidates it in the background (default: 2). This setting is overridden by the stale-while-revalidate HTTP Cache-Control extension (see RFC 5861).

• staleiferror Specifies the default number of seconds (the granularity is the second) during which the cache can serve a stale response when an error is encountered (default: 60). This setting is overridden by the stale-if-error HTTP Cache-Control extension (see RFC 5861).

Gets the current store.

Returns an array of events that took place during processing of the last request.

Returns a log message for the events of the last request processing.

Gets the Request instance associated with the master request.

Gets the Kernel instance.

Gets the Surrogate instance.

Handles a Request to convert it to a Response.

When $catch is true, the implementation must catch all exceptions and do its best to convert them to a Response instance.

Terminates a request/response cycle.

Should be called after sending the response and before shutting down the kernel.