void FetchResponse::initializeWith(const Dictionary& init, ExceptionCode& ec)
{
int status;
if (!init.get("status", status)) {
ec = TypeError;
return;
}
if (status < 200 || status > 599) {
ec = RangeError;
return;
}
// FIXME: Validate reason phrase (https://tools.ietf.org/html/rfc7230#section-3.1.2).
String statusText;
if (!init.get("statusText", statusText)) {
ec = TypeError;
return;
}
m_response.setHTTPStatusCode(status);
m_response.setHTTPStatusText(statusText);
RefPtr<FetchHeaders> initialHeaders;
if (init.get("headers", initialHeaders))
m_headers->fill(initialHeaders.get());
JSC::JSValue body;
if (init.get("body", body)) {
if (isNullBodyStatus(status)) {
ec = TypeError;
return;
}
m_body = FetchBody::extract(*init.execState(), body);
if (m_headers->fastGet(HTTPHeaderName::ContentType).isEmpty() && !m_body.mimeType().isEmpty())
m_headers->fastSet(HTTPHeaderName::ContentType, m_body.mimeType());
}
}
Response* Response::create(ExecutionContext* context, PassOwnPtr<FetchDataConsumerHandle> bodyHandle, const String& contentType, const ResponseInit& init, ExceptionState& exceptionState)
{
unsigned short status = init.status;
// "1. If |init|'s status member is not in the range 200 to 599, inclusive, throw a
// RangeError."
if (status < 200 || 599 < status) {
exceptionState.throwRangeError(ExceptionMessages::indexOutsideRange<unsigned>("status", status, 200, ExceptionMessages::InclusiveBound, 599, ExceptionMessages::InclusiveBound));
return nullptr;
}
// "2. If |init|'s statusText member does not match the Reason-Phrase
// token production, throw a TypeError."
if (!isValidReasonPhrase(init.statusText)) {
exceptionState.throwTypeError("Invalid statusText");
return nullptr;
}
// "3. Let |r| be a new Response object, associated with a new response,
// Headers object, and Body object."
Response* r = new Response(context);
// "4. Set |r|'s response's status to |init|'s status member."
r->m_response->setStatus(init.status);
// "5. Set |r|'s response's status message to |init|'s statusText member."
r->m_response->setStatusMessage(AtomicString(init.statusText));
// "6. If |init|'s headers member is present, run these substeps:"
if (init.headers) {
// "1. Empty |r|'s response's header list."
r->m_response->headerList()->clearList();
// "2. Fill |r|'s Headers object with |init|'s headers member. Rethrow
// any exceptions."
r->m_headers->fillWith(init.headers.get(), exceptionState);
if (exceptionState.hadException())
return nullptr;
} else if (!init.headersDictionary.isUndefinedOrNull()) {
// "1. Empty |r|'s response's header list."
r->m_response->headerList()->clearList();
// "2. Fill |r|'s Headers object with |init|'s headers member. Rethrow
// any exceptions."
r->m_headers->fillWith(init.headersDictionary, exceptionState);
if (exceptionState.hadException())
return nullptr;
}
// "7. If body is given, run these substeps:"
if (bodyHandle) {
// "1. If |init|'s status member is a null body status, throw a
// TypeError."
// "2. Let |stream| and |Content-Type| be the result of extracting
// body."
// "3. Set |r|'s response's body to |stream|."
// "4. If |Content-Type| is non-null and |r|'s response's header list
// contains no header named `Content-Type`, append `Content-Type`/
// |Content-Type| to |r|'s response's header list."
// https://fetch.spec.whatwg.org/#concept-bodyinit-extract
// Step 3, Blob:
// "If object's type attribute is not the empty byte sequence, set
// Content-Type to its value."
if (isNullBodyStatus(status)) {
exceptionState.throwTypeError("Response with null body status cannot have body");
return nullptr;
}
r->m_response->replaceBodyStreamBuffer(new BodyStreamBuffer(bodyHandle));
if (!contentType.isEmpty() && !r->m_response->headerList()->has("Content-Type"))
r->m_response->headerList()->append("Content-Type", contentType);
}
// "8. Set |r|'s MIME type to the result of extracting a MIME type
// from |r|'s response's header list."
r->m_response->setMIMEType(r->m_response->headerList()->extractMIMEType());
// "9. Return |r|."
return r;
}
