Function CompareEtagValue

httpheaders/conditional.go:21–32

CompareEtagValue same method as above, but accepts the raw If-None-Match value instead of the request header.

(ifNoneMatch string, respHeader http.Header)

// CompareEtagValue same method as above, but accepts the raw If-None-Match value
// instead of the request header.
func CompareEtagValue(ifNoneMatch string, respHeader http.Header) (bool, bool) {
	if ifNoneMatch == "" {
		return false, false
	}

	etag := respHeader.Get(Etag)
	if etag == "" {
		return false, false
	}

	return true, UnquoteEtag(etag) == UnquoteEtag(ifNoneMatch)
}

// UnquoteEtag removes quotes from the ETag value if they are present.
// It also removes the weak ETag prefix "W/" if it is present.