cacheutils

Documentation

Index

• func CacheSatisfiesRequest(obj *types.ObjectMetadata, req *http.Request) bool
• func IsResponseCacheable(code int, headers http.Header) bool
• func ResponseExpiresIn(headers http.Header, ifNotAny time.Duration) time.Duration

Functions

func CacheSatisfiesRequest

func CacheSatisfiesRequest(obj *types.ObjectMetadata, req *http.Request) bool

CacheSatisfiesRequest returs whether the client allows the requested content to be retrieved from the cache and whether the cache we have is fresh enough to be used for handling the request.

func IsResponseCacheable

func IsResponseCacheable(code int, headers http.Header) bool

IsResponseCacheable returs whether the upstream server allows the requested content to be saved in the cache. True result and 0 duration means that the response has no expiry date.

func ResponseExpiresIn

func ResponseExpiresIn(headers http.Header, ifNotAny time.Duration) time.Duration

ResponseExpiresIn parses the expiration time from upstream headers, if any, and returns it as a duration from now. If no expire time is found, it returns its second argument: the default expiration time.