void
RespondWithHandler::ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue)
{
AutoCancel autoCancel(this, mRequestURL);
if (!aValue.isObject()) {
NS_WARNING("FetchEvent::RespondWith was passed a promise resolved to a non-Object value");
nsCString sourceSpec;
uint32_t line = 0;
uint32_t column = 0;
nsString valueString;
ExtractErrorValues(aCx, aValue, sourceSpec, &line, &column, valueString);
autoCancel.SetCancelMessageAndLocation(sourceSpec, line, column,
NS_LITERAL_CSTRING("InterceptedNonResponseWithURL"),
mRequestURL, valueString);
return;
}
RefPtr<Response> response;
nsresult rv = UNWRAP_OBJECT(Response, &aValue.toObject(), response);
if (NS_FAILED(rv)) {
nsCString sourceSpec;
uint32_t line = 0;
uint32_t column = 0;
nsString valueString;
ExtractErrorValues(aCx, aValue, sourceSpec, &line, &column, valueString);
autoCancel.SetCancelMessageAndLocation(sourceSpec, line, column,
NS_LITERAL_CSTRING("InterceptedNonResponseWithURL"),
mRequestURL, valueString);
return;
}
WorkerPrivate* worker = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(worker);
worker->AssertIsOnWorkerThread();
// Section "HTTP Fetch", step 3.3:
// If one of the following conditions is true, return a network error:
// * response's type is "error".
// * request's mode is not "no-cors" and response's type is "opaque".
// * request's redirect mode is not "manual" and response's type is
// "opaqueredirect".
// * request's redirect mode is not "follow" and response's url list
// has more than one item.
if (response->Type() == ResponseType::Error) {
autoCancel.SetCancelMessage(
NS_LITERAL_CSTRING("InterceptedErrorResponseWithURL"), mRequestURL);
return;
}
MOZ_ASSERT_IF(mIsClientRequest, mRequestMode == RequestMode::Same_origin ||
mRequestMode == RequestMode::Navigate);
if (response->Type() == ResponseType::Opaque && mRequestMode != RequestMode::No_cors) {
uint32_t mode = static_cast<uint32_t>(mRequestMode);
NS_ConvertASCIItoUTF16 modeString(RequestModeValues::strings[mode].value,
RequestModeValues::strings[mode].length);
autoCancel.SetCancelMessage(
NS_LITERAL_CSTRING("BadOpaqueInterceptionRequestModeWithURL"),
mRequestURL, modeString);
return;
}
if (mRequestRedirectMode != RequestRedirect::Manual &&
response->Type() == ResponseType::Opaqueredirect) {
autoCancel.SetCancelMessage(
NS_LITERAL_CSTRING("BadOpaqueRedirectInterceptionWithURL"), mRequestURL);
return;
}
if (mRequestRedirectMode != RequestRedirect::Follow && response->Redirected()) {
autoCancel.SetCancelMessage(
NS_LITERAL_CSTRING("BadRedirectModeInterceptionWithURL"), mRequestURL);
return;
}
if (NS_WARN_IF(response->BodyUsed())) {
autoCancel.SetCancelMessage(
NS_LITERAL_CSTRING("InterceptedUsedResponseWithURL"), mRequestURL);
return;
}
RefPtr<InternalResponse> ir = response->GetInternalResponse();
if (NS_WARN_IF(!ir)) {
return;
}
// When an opaque response is encountered, we need the original channel's principal
// to reflect the final URL. Non-opaque responses are either same-origin or CORS-enabled
// cross-origin responses, which are treated as same-origin by consumers.
nsCString responseURL;
if (response->Type() == ResponseType::Opaque) {
responseURL = ir->GetUnfilteredURL();
if (NS_WARN_IF(responseURL.IsEmpty())) {
return;
}
}
nsAutoPtr<RespondWithClosure> closure(new RespondWithClosure(mInterceptedChannel,
mRegistration, ir,
worker->GetChannelInfo(),
mScriptSpec,
responseURL,
mRequestURL,
mRespondWithScriptSpec,
mRespondWithLineNumber,
mRespondWithColumnNumber));
nsCOMPtr<nsIInputStream> body;
ir->GetUnfilteredBody(getter_AddRefs(body));
// Errors and redirects may not have a body.
if (body) {
response->SetBodyUsed();
nsCOMPtr<nsIOutputStream> responseBody;
rv = mInterceptedChannel->GetResponseBody(getter_AddRefs(responseBody));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
const uint32_t kCopySegmentSize = 4096;
// Depending on how the Response passed to .respondWith() was created, we may
// get a non-buffered input stream. In addition, in some configurations the
// destination channel's output stream can be unbuffered. We wrap the output
// stream side here so that NS_AsyncCopy() works. Wrapping the output side
// provides the most consistent operation since there are fewer stream types
// we are writing to. The input stream can be a wide variety of concrete
// objects which may or many not play well with NS_InputStreamIsBuffered().
if (!NS_OutputStreamIsBuffered(responseBody)) {
nsCOMPtr<nsIOutputStream> buffered;
rv = NS_NewBufferedOutputStream(getter_AddRefs(buffered), responseBody,
kCopySegmentSize);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
responseBody = buffered;
}
nsCOMPtr<nsIEventTarget> stsThread = do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID, &rv);
if (NS_WARN_IF(!stsThread)) {
return;
}
// XXXnsm, Fix for Bug 1141332 means that if we decide to make this
// streaming at some point, we'll need a different solution to that bug.
rv = NS_AsyncCopy(body, responseBody, stsThread, NS_ASYNCCOPY_VIA_WRITESEGMENTS,
kCopySegmentSize, RespondWithCopyComplete, closure.forget());
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
} else {
RespondWithCopyComplete(closure.forget(), NS_OK);
}
MOZ_ASSERT(!closure);
autoCancel.Reset();
mRequestWasHandled = true;
}
void
RespondWithHandler::ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue)
{
AutoCancel autoCancel(this);
if (!aValue.isObject()) {
NS_WARNING("FetchEvent::RespondWith was passed a promise resolved to a non-Object value");
return;
}
RefPtr<Response> response;
nsresult rv = UNWRAP_OBJECT(Response, &aValue.toObject(), response);
if (NS_FAILED(rv)) {
return;
}
WorkerPrivate* worker = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(worker);
worker->AssertIsOnWorkerThread();
// Allow opaque response interception to be disabled until we can ensure the
// security implications are not a complete disaster.
if (response->Type() == ResponseType::Opaque &&
!worker->OpaqueInterceptionEnabled()) {
autoCancel.SetCancelStatus(NS_ERROR_OPAQUE_INTERCEPTION_DISABLED);
return;
}
// Section "HTTP Fetch", step 2.2:
// If one of the following conditions is true, return a network error:
// * response's type is "error".
// * request's mode is not "no-cors" and response's type is "opaque".
// * request is not a navigation request and response's type is
// "opaqueredirect".
if (response->Type() == ResponseType::Error) {
autoCancel.SetCancelStatus(NS_ERROR_INTERCEPTED_ERROR_RESPONSE);
return;
}
MOZ_ASSERT_IF(mIsClientRequest, mRequestMode == RequestMode::Same_origin);
if (response->Type() == ResponseType::Opaque && mRequestMode != RequestMode::No_cors) {
autoCancel.SetCancelStatus(NS_ERROR_BAD_OPAQUE_INTERCEPTION_REQUEST_MODE);
return;
}
if (!mIsNavigationRequest && response->Type() == ResponseType::Opaqueredirect) {
autoCancel.SetCancelStatus(NS_ERROR_BAD_OPAQUE_REDIRECT_INTERCEPTION);
return;
}
if (NS_WARN_IF(response->BodyUsed())) {
autoCancel.SetCancelStatus(NS_ERROR_INTERCEPTED_USED_RESPONSE);
return;
}
RefPtr<InternalResponse> ir = response->GetInternalResponse();
if (NS_WARN_IF(!ir)) {
return;
}
nsAutoPtr<RespondWithClosure> closure(new RespondWithClosure(mInterceptedChannel, ir,
worker->GetChannelInfo(),
mScriptSpec));
nsCOMPtr<nsIInputStream> body;
ir->GetUnfilteredBody(getter_AddRefs(body));
// Errors and redirects may not have a body.
if (body) {
response->SetBodyUsed();
nsCOMPtr<nsIOutputStream> responseBody;
rv = mInterceptedChannel->GetResponseBody(getter_AddRefs(responseBody));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
nsCOMPtr<nsIEventTarget> stsThread = do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID, &rv);
if (NS_WARN_IF(!stsThread)) {
return;
}
// XXXnsm, Fix for Bug 1141332 means that if we decide to make this
// streaming at some point, we'll need a different solution to that bug.
rv = NS_AsyncCopy(body, responseBody, stsThread, NS_ASYNCCOPY_VIA_READSEGMENTS, 4096,
RespondWithCopyComplete, closure.forget());
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
} else {
RespondWithCopyComplete(closure.forget(), NS_OK);
}
MOZ_ASSERT(!closure);
autoCancel.Reset();
mRequestWasHandled = true;
}
void
RespondWithHandler::ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue)
{
AutoCancel autoCancel(this);
if (!aValue.isObject()) {
NS_WARNING("FetchEvent::RespondWith was passed a promise resolved to a non-Object value");
return;
}
nsRefPtr<Response> response;
nsresult rv = UNWRAP_OBJECT(Response, &aValue.toObject(), response);
if (NS_FAILED(rv)) {
return;
}
WorkerPrivate* worker = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(worker);
worker->AssertIsOnWorkerThread();
// Allow opaque response interception to be disabled until we can ensure the
// security implications are not a complete disaster.
if (response->Type() == ResponseType::Opaque &&
!worker->OpaqueInterceptionEnabled()) {
return;
}
// Section 4.2, step 2.2 "If either response's type is "opaque" and request's
// mode is not "no-cors" or response's type is error, return a network error."
if (((response->Type() == ResponseType::Opaque) && (mRequestMode != RequestMode::No_cors)) ||
response->Type() == ResponseType::Error) {
return;
}
if (NS_WARN_IF(response->BodyUsed())) {
return;
}
nsRefPtr<InternalResponse> ir = response->GetInternalResponse();
if (NS_WARN_IF(!ir)) {
return;
}
nsAutoPtr<RespondWithClosure> closure(
new RespondWithClosure(mInterceptedChannel, ir, worker->GetChannelInfo()));
nsCOMPtr<nsIInputStream> body;
ir->GetInternalBody(getter_AddRefs(body));
// Errors and redirects may not have a body.
if (body) {
response->SetBodyUsed();
nsCOMPtr<nsIOutputStream> responseBody;
rv = mInterceptedChannel->GetResponseBody(getter_AddRefs(responseBody));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
nsCOMPtr<nsIEventTarget> stsThread = do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID, &rv);
if (NS_WARN_IF(!stsThread)) {
return;
}
// XXXnsm, Fix for Bug 1141332 means that if we decide to make this
// streaming at some point, we'll need a different solution to that bug.
rv = NS_AsyncCopy(body, responseBody, stsThread, NS_ASYNCCOPY_VIA_READSEGMENTS, 4096,
RespondWithCopyComplete, closure.forget());
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
} else {
RespondWithCopyComplete(closure.forget(), NS_OK);
}
MOZ_ASSERT(!closure);
autoCancel.Reset();
}
/*static*/ already_AddRefed<Response>
Response::Constructor(const GlobalObject& aGlobal,
const Optional<Nullable<fetch::ResponseBodyInit>>& aBody,
const ResponseInit& aInit, ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
if (aInit.mStatus < 200 || aInit.mStatus > 599) {
aRv.ThrowRangeError<MSG_INVALID_RESPONSE_STATUSCODE_ERROR>();
return nullptr;
}
// Check if the status text contains illegal characters
nsACString::const_iterator start, end;
aInit.mStatusText.BeginReading(start);
aInit.mStatusText.EndReading(end);
if (FindCharInReadable('\r', start, end)) {
aRv.ThrowTypeError<MSG_RESPONSE_INVALID_STATUSTEXT_ERROR>();
return nullptr;
}
// Reset iterator since FindCharInReadable advances it.
aInit.mStatusText.BeginReading(start);
if (FindCharInReadable('\n', start, end)) {
aRv.ThrowTypeError<MSG_RESPONSE_INVALID_STATUSTEXT_ERROR>();
return nullptr;
}
RefPtr<InternalResponse> internalResponse =
new InternalResponse(aInit.mStatus, aInit.mStatusText);
// Grab a valid channel info from the global so this response is 'valid' for
// interception.
if (NS_IsMainThread()) {
ChannelInfo info;
nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(global);
if (window) {
nsIDocument* doc = window->GetExtantDoc();
MOZ_ASSERT(doc);
info.InitFromDocument(doc);
} else {
info.InitFromChromeGlobal(global);
}
internalResponse->InitChannelInfo(info);
} else {
WorkerPrivate* worker = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(worker);
internalResponse->InitChannelInfo(worker->GetChannelInfo());
}
RefPtr<Response> r = new Response(global, internalResponse, nullptr);
if (aInit.mHeaders.WasPassed()) {
internalResponse->Headers()->Clear();
// Instead of using Fill, create an object to allow the constructor to
// unwrap the HeadersInit.
RefPtr<Headers> headers =
Headers::Create(global, aInit.mHeaders.Value(), aRv);
if (aRv.Failed()) {
return nullptr;
}
internalResponse->Headers()->Fill(*headers->GetInternalHeaders(), aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
}
if (aBody.WasPassed() && !aBody.Value().IsNull()) {
if (aInit.mStatus == 204 || aInit.mStatus == 205 || aInit.mStatus == 304) {
aRv.ThrowTypeError<MSG_RESPONSE_NULL_STATUS_WITH_BODY>();
return nullptr;
}
nsCString contentTypeWithCharset;
nsCOMPtr<nsIInputStream> bodyStream;
int64_t bodySize = InternalResponse::UNKNOWN_BODY_SIZE;
const fetch::ResponseBodyInit& body = aBody.Value().Value();
if (body.IsReadableStream()) {
aRv.MightThrowJSException();
JSContext* cx = aGlobal.Context();
const ReadableStream& readableStream = body.GetAsReadableStream();
JS::Rooted<JSObject*> readableStreamObj(cx, readableStream.Obj());
bool disturbed;
bool locked;
if (!JS::ReadableStreamIsDisturbed(cx, readableStreamObj, &disturbed) ||
!JS::ReadableStreamIsLocked(cx, readableStreamObj, &locked)) {
aRv.StealExceptionFromJSContext(cx);
return nullptr;
}
if (disturbed || locked) {
aRv.ThrowTypeError<MSG_FETCH_BODY_CONSUMED_ERROR>();
return nullptr;
}
r->SetReadableStreamBody(cx, readableStreamObj);
JS::ReadableStreamMode streamMode;
if (!JS::ReadableStreamGetMode(cx, readableStreamObj, &streamMode)) {
aRv.StealExceptionFromJSContext(cx);
return nullptr;
}
if (streamMode == JS::ReadableStreamMode::ExternalSource) {
// If this is a DOM generated ReadableStream, we can extract the
// inputStream directly.
void* underlyingSource = nullptr;
if (!JS::ReadableStreamGetExternalUnderlyingSource(cx,
readableStreamObj,
&underlyingSource)) {
aRv.StealExceptionFromJSContext(cx);
return nullptr;
}
MOZ_ASSERT(underlyingSource);
aRv = FetchStream::RetrieveInputStream(underlyingSource,
getter_AddRefs(bodyStream));
// The releasing of the external source is needed in order to avoid an
// extra stream lock.
if (!JS::ReadableStreamReleaseExternalUnderlyingSource(cx, readableStreamObj)) {
aRv.StealExceptionFromJSContext(cx);
return nullptr;
}
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
} else {
// If this is a JS-created ReadableStream, let's create a
// FetchStreamReader.
aRv = FetchStreamReader::Create(aGlobal.Context(), global,
getter_AddRefs(r->mFetchStreamReader),
getter_AddRefs(bodyStream));
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
}
} else {
uint64_t size = 0;
aRv = ExtractByteStreamFromBody(body,
getter_AddRefs(bodyStream),
contentTypeWithCharset,
size);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
bodySize = size;
}
internalResponse->SetBody(bodyStream, bodySize);
if (!contentTypeWithCharset.IsVoid() &&
!internalResponse->Headers()->Has(NS_LITERAL_CSTRING("Content-Type"),
aRv)) {
// Ignore Append() failing here.
ErrorResult error;
internalResponse->Headers()->Append(NS_LITERAL_CSTRING("Content-Type"),
contentTypeWithCharset, error);
error.SuppressException();
}
if (aRv.Failed()) {
return nullptr;
}
}
r->SetMimeType();
return r.forget();
}
void
RespondWithHandler::ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue)
{
AutoCancel autoCancel(this, mRequestURL);
if (!aValue.isObject()) {
NS_WARNING("FetchEvent::RespondWith was passed a promise resolved to a non-Object value");
nsCString sourceSpec;
uint32_t line = 0;
uint32_t column = 0;
nsString valueString;
ExtractErrorValues(aCx, aValue, sourceSpec, &line, &column, valueString);
autoCancel.SetCancelMessageAndLocation(sourceSpec, line, column,
NS_LITERAL_CSTRING("InterceptedNonResponseWithURL"),
mRequestURL, valueString);
return;
}
RefPtr<Response> response;
nsresult rv = UNWRAP_OBJECT(Response, &aValue.toObject(), response);
if (NS_FAILED(rv)) {
nsCString sourceSpec;
uint32_t line = 0;
uint32_t column = 0;
nsString valueString;
ExtractErrorValues(aCx, aValue, sourceSpec, &line, &column, valueString);
autoCancel.SetCancelMessageAndLocation(sourceSpec, line, column,
NS_LITERAL_CSTRING("InterceptedNonResponseWithURL"),
mRequestURL, valueString);
return;
}
WorkerPrivate* worker = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(worker);
worker->AssertIsOnWorkerThread();
// Allow opaque response interception to be disabled until we can ensure the
// security implications are not a complete disaster.
if (response->Type() == ResponseType::Opaque &&
!worker->OpaqueInterceptionEnabled()) {
autoCancel.SetCancelMessage(
NS_LITERAL_CSTRING("OpaqueInterceptionDisabledWithURL"), mRequestURL);
return;
}
// Section "HTTP Fetch", step 2.2:
// If one of the following conditions is true, return a network error:
// * response's type is "error".
// * request's mode is not "no-cors" and response's type is "opaque".
// * request is not a navigation request and response's type is
// "opaqueredirect".
if (response->Type() == ResponseType::Error) {
autoCancel.SetCancelMessage(
NS_LITERAL_CSTRING("InterceptedErrorResponseWithURL"), mRequestURL);
return;
}
MOZ_ASSERT_IF(mIsClientRequest, mRequestMode == RequestMode::Same_origin);
if (response->Type() == ResponseType::Opaque && mRequestMode != RequestMode::No_cors) {
uint32_t mode = static_cast<uint32_t>(mRequestMode);
NS_ConvertASCIItoUTF16 modeString(RequestModeValues::strings[mode].value,
RequestModeValues::strings[mode].length);
autoCancel.SetCancelMessage(
NS_LITERAL_CSTRING("BadOpaqueInterceptionRequestModeWithURL"),
mRequestURL, modeString);
return;
}
if (!mIsNavigationRequest && response->Type() == ResponseType::Opaqueredirect) {
autoCancel.SetCancelMessage(
NS_LITERAL_CSTRING("BadOpaqueRedirectInterceptionWithURL"), mRequestURL);
return;
}
if (NS_WARN_IF(response->BodyUsed())) {
autoCancel.SetCancelMessage(
NS_LITERAL_CSTRING("InterceptedUsedResponseWithURL"), mRequestURL);
return;
}
RefPtr<InternalResponse> ir = response->GetInternalResponse();
if (NS_WARN_IF(!ir)) {
return;
}
// When an opaque response is encountered, we need the original channel's principal
// to reflect the final URL. Non-opaque responses are either same-origin or CORS-enabled
// cross-origin responses, which are treated as same-origin by consumers.
nsCString responseURL;
if (response->Type() == ResponseType::Opaque) {
ir->GetUnfilteredUrl(responseURL);
if (NS_WARN_IF(responseURL.IsEmpty())) {
return;
}
}
nsAutoPtr<RespondWithClosure> closure(new RespondWithClosure(mInterceptedChannel, ir,
worker->GetChannelInfo(),
mScriptSpec,
responseURL,
mRequestURL,
mRespondWithScriptSpec,
mRespondWithLineNumber,
mRespondWithColumnNumber));
nsCOMPtr<nsIInputStream> body;
ir->GetUnfilteredBody(getter_AddRefs(body));
// Errors and redirects may not have a body.
if (body) {
response->SetBodyUsed();
nsCOMPtr<nsIOutputStream> responseBody;
rv = mInterceptedChannel->GetResponseBody(getter_AddRefs(responseBody));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
nsCOMPtr<nsIEventTarget> stsThread = do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID, &rv);
if (NS_WARN_IF(!stsThread)) {
return;
}
// XXXnsm, Fix for Bug 1141332 means that if we decide to make this
// streaming at some point, we'll need a different solution to that bug.
rv = NS_AsyncCopy(body, responseBody, stsThread, NS_ASYNCCOPY_VIA_READSEGMENTS, 4096,
RespondWithCopyComplete, closure.forget());
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
} else {
RespondWithCopyComplete(closure.forget(), NS_OK);
}
MOZ_ASSERT(!closure);
autoCancel.Reset();
mRequestWasHandled = true;
}
