void OnlineFileRequest::completed(Response response) {
// If we didn't get various caching headers in the response, continue using the
// previous values. Otherwise, update the previous values to the new values.
if (!response.modified) {
response.modified = resource.priorModified;
} else {
resource.priorModified = response.modified;
}
if (response.notModified && resource.priorData) {
// When the priorData field is set, it indicates that we had to revalidate the request and
// that the requestor hasn't gotten data yet. If we get a 304 response, this means that we
// have send the cached data to give the requestor a chance to actually obtain the data.
response.data = std::move(resource.priorData);
response.notModified = false;
}
bool isExpired = false;
if (response.expires) {
auto prior = resource.priorExpires;
resource.priorExpires = response.expires;
response.expires = interpolateExpiration(*response.expires, prior, isExpired);
}
if (isExpired) {
expiredRequests++;
} else {
expiredRequests = 0;
}
if (!response.etag) {
response.etag = resource.priorEtag;
} else {
resource.priorEtag = response.etag;
}
if (response.error) {
failedRequests++;
failedRequestReason = response.error->reason;
retryAfter = response.error->retryAfter;
} else {
failedRequests = 0;
failedRequestReason = Response::Error::Reason::Success;
}
schedule(response.expires);
// Calling the callback may result in `this` being deleted. It needs to be done last,
// and needs to make a local copy of the callback to ensure that it remains valid for
// the duration of the call.
auto callback_ = callback;
callback_(response);
}
void OnlineFileRequest::completed(Response response) {
// If we didn't get various caching headers in the response, continue using the
// previous values. Otherwise, update the previous values to the new values.
if (!response.modified) {
response.modified = resource.priorModified;
} else {
resource.priorModified = response.modified;
}
bool isExpired = false;
if (response.expires) {
auto prior = resource.priorExpires;
resource.priorExpires = response.expires;
response.expires = interpolateExpiration(*response.expires, prior, isExpired);
}
if (isExpired) {
expiredRequests++;
} else {
expiredRequests = 0;
}
if (!response.etag) {
response.etag = resource.priorEtag;
} else {
resource.priorEtag = response.etag;
}
if (response.error) {
failedRequests++;
failedRequestReason = response.error->reason;
retryAfter = response.error->retryAfter;
} else {
failedRequests = 0;
failedRequestReason = Response::Error::Reason::Success;
}
schedule(response.expires);
// Calling the callback may result in `this` being deleted. It needs to be done last,
// and needs to make a local copy of the callback to ensure that it remains valid for
// the duration of the call.
auto callback_ = callback;
callback_(response);
}
