void BlobResourceHandle::doStart()
{
// Do not continue if the request is aborted or an error occurs.
if (m_aborted || m_errorCode)
return;
// If the blob data is not found, fail now.
if (!m_blobData) {
m_errorCode = notFoundError;
notifyResponse();
return;
}
// Parse the "Range" header we care about.
String range = firstRequest().httpHeaderField("Range");
if (!range.isEmpty() && !parseRange(range, m_rangeOffset, m_rangeEnd, m_rangeSuffixLength)) {
m_errorCode = rangeError;
notifyResponse();
return;
}
if (m_async)
getSizeForNext();
else {
for (size_t i = 0; i < m_blobData->items().size() && !m_aborted && !m_errorCode; ++i)
getSizeForNext();
notifyResponse();
}
}
void NetworkDataTaskBlob::didGetSize(long long size)
{
ASSERT(isMainThread());
if (m_state == State::Canceling || m_state == State::Completed || (!m_client && !isDownload())) {
clearStream();
return;
}
// If the size is -1, it means the file has been moved or changed. Fail now.
if (size == -1) {
didFail(Error::NotFoundError);
return;
}
// The size passed back is the size of the whole file. If the underlying item is a sliced file, we need to use the slice length.
const BlobDataItem& item = m_blobData->items().at(m_sizeItemCount);
size = item.length();
// Cache the size.
m_itemLengthList.append(size);
// Count the size.
m_totalSize += size;
m_totalRemainingSize += size;
m_sizeItemCount++;
// Continue with the next item.
getSizeForNext();
}
void BlobResourceHandle::didGetSize(long long size)
{
// Do not continue if the request is aborted or an error occurs.
if (m_aborted || m_errorCode)
return;
// If the size is -1, it means the file has been moved or changed. Fail now.
if (size == -1) {
m_errorCode = notFoundError;
notifyResponse();
return;
}
// The size passed back is the size of the whole file. If the underlying item is a sliced file, we need to use the slice length.
const BlobDataItem& item = m_blobData->items().at(m_sizeItemCount);
if (item.type == BlobDataItem::File && item.length != BlobDataItem::toEndOfFile)
size = item.length;
// Cache the size.
m_itemLengthList.append(size);
// Count the size.
m_totalRemainingSize += size;
m_sizeItemCount++;
// Continue with the next item.
getSizeForNext();
}
void BlobResourceHandle::doStart()
{
ASSERT(isMainThread());
// Do not continue if the request is aborted or an error occurs.
if (m_aborted || m_errorCode)
return;
if (!equalLettersIgnoringASCIICase(firstRequest().httpMethod(), "get")) {
notifyFail(methodNotAllowed);
return;
}
// If the blob data is not found, fail now.
if (!m_blobData) {
m_errorCode = notFoundError;
notifyResponse();
return;
}
// Parse the "Range" header we care about.
String range = firstRequest().httpHeaderField(HTTPHeaderName::Range);
if (!range.isEmpty() && !parseRange(range, m_rangeOffset, m_rangeEnd, m_rangeSuffixLength)) {
m_errorCode = rangeError;
notifyResponse();
return;
}
if (m_async)
getSizeForNext();
else {
Ref<BlobResourceHandle> protectedThis(*this); // getSizeForNext calls the client
for (size_t i = 0; i < m_blobData->items().size() && !m_aborted && !m_errorCode; ++i)
getSizeForNext();
notifyResponse();
}
}
void NetworkDataTaskBlob::resume()
{
ASSERT(m_state != State::Running);
if (m_state == State::Canceling || m_state == State::Completed)
return;
m_state = State::Running;
if (m_scheduledFailureType != NoFailure) {
ASSERT(m_failureTimer.isActive());
return;
}
RunLoop::main().dispatch([this, protectedThis = makeRef(*this)] {
if (m_state == State::Canceling || m_state == State::Completed || !m_client) {
clearStream();
return;
}
if (!equalLettersIgnoringASCIICase(m_firstRequest.httpMethod(), "get")) {
didFail(Error::MethodNotAllowed);
return;
}
// If the blob data is not found, fail now.
if (!m_blobData) {
didFail(Error::NotFoundError);
return;
}
// Parse the "Range" header we care about.
String range = m_firstRequest.httpHeaderField(HTTPHeaderName::Range);
if (!range.isEmpty() && !parseRange(range, m_rangeOffset, m_rangeEnd, m_rangeSuffixLength)) {
didReceiveResponse(Error::RangeError);
return;
}
getSizeForNext();
});
}
