/** Returns true if this response can be stored to later serve another request. */
public boolean isCacheable(RequestHeaders request) {
/*
* Always go to network for uncacheable response codes (RFC 2616, 13.4),
* This implementation doesn't support caching partial content.
*/
int responseCode = headers.getResponseCode();
if (responseCode != HttpURLConnection.HTTP_OK
&& responseCode != HttpURLConnection.HTTP_NOT_AUTHORITATIVE
&& responseCode != HttpURLConnection.HTTP_MULT_CHOICE
&& responseCode != HttpURLConnection.HTTP_MOVED_PERM
&& responseCode != HttpURLConnection.HTTP_GONE) {
return false;
}
/*
* Responses to authorized requests aren't cacheable unless they include
* a 'public', 'must-revalidate' or 's-maxage' directive.
*/
if (request.hasAuthorization() && !isPublic && !mustRevalidate && sMaxAgeSeconds == -1) {
return false;
}
if (noStore) {
return false;
}
return true;
}
