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-rw-r--r--dom/fetch/Fetch.cpp158
-rw-r--r--dom/fetch/FetchDriver.cpp45
-rw-r--r--dom/fetch/FetchDriver.h29
-rw-r--r--dom/fetch/FetchSignal.cpp8
-rw-r--r--dom/fetch/FetchSignal.h1
-rw-r--r--dom/tests/mochitest/fetch/file_fetch_controller.html81
6 files changed, 292 insertions, 30 deletions
diff --git a/dom/fetch/Fetch.cpp b/dom/fetch/Fetch.cpp
index f944352e3..11e93205c 100644
--- a/dom/fetch/Fetch.cpp
+++ b/dom/fetch/Fetch.cpp
@@ -52,41 +52,137 @@ namespace dom {
using namespace workers;
+// This class helps the proxying of FetchSignal changes cross threads.
+class FetchSignalProxy final : public FetchSignal::Follower
+{
+ // This is created and released on the main-thread.
+ RefPtr<FetchSignal> mSignalMainThread;
+
+ // This value is used only for the creation of FetchSignal on the
+ // main-thread. They are not updated.
+ const bool mAborted;
+
+ // This runnable propagates changes from the FetchSignal on workers to the
+ // FetchSignal on main-thread.
+ class FetchSignalProxyRunnable final : public Runnable
+ {
+ RefPtr<FetchSignalProxy> mProxy;
+
+ public:
+ explicit FetchSignalProxyRunnable(FetchSignalProxy* aProxy)
+ : mProxy(aProxy)
+ {}
+
+ NS_IMETHOD
+ Run() override
+ {
+ MOZ_ASSERT(NS_IsMainThread());
+ FetchSignal* signal = mProxy->GetOrCreateSignalForMainThread();
+ signal->Abort();
+ return NS_OK;
+ }
+ };
+
+public:
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FetchSignalProxy)
+
+ explicit FetchSignalProxy(FetchSignal* aSignal)
+ : mAborted(aSignal->Aborted())
+ {
+ Follow(aSignal);
+ }
+
+ void
+ Aborted() override
+ {
+ RefPtr<FetchSignalProxyRunnable> runnable =
+ new FetchSignalProxyRunnable(this);
+ NS_DispatchToMainThread(runnable);
+ }
+
+ FetchSignal*
+ GetOrCreateSignalForMainThread()
+ {
+ MOZ_ASSERT(NS_IsMainThread());
+ if (!mSignalMainThread) {
+ mSignalMainThread = new FetchSignal(mAborted);
+ }
+ return mSignalMainThread;
+ }
+
+ void
+ Shutdown()
+ {
+ Unfollow();
+ }
+
+private:
+ ~FetchSignalProxy()
+ {
+ NS_ReleaseOnMainThread(mSignalMainThread.forget());
+ }
+};
+
class WorkerFetchResolver final : public FetchDriverObserver
{
friend class MainThreadFetchRunnable;
+ friend class WorkerFetchResponseEndBase;
friend class WorkerFetchResponseEndRunnable;
friend class WorkerFetchResponseRunnable;
RefPtr<PromiseWorkerProxy> mPromiseProxy;
+ RefPtr<FetchSignalProxy> mSignalProxy;
+
public:
// Returns null if worker is shutting down.
static already_AddRefed<WorkerFetchResolver>
- Create(workers::WorkerPrivate* aWorkerPrivate, Promise* aPromise)
+ Create(workers::WorkerPrivate* aWorkerPrivate, Promise* aPromise,
+ FetchSignal* aSignal)
{
MOZ_ASSERT(aWorkerPrivate);
aWorkerPrivate->AssertIsOnWorkerThread();
- RefPtr<PromiseWorkerProxy> proxy = PromiseWorkerProxy::Create(aWorkerPrivate, aPromise);
+ RefPtr<PromiseWorkerProxy> proxy =
+ PromiseWorkerProxy::Create(aWorkerPrivate, aPromise);
if (!proxy) {
return nullptr;
}
- RefPtr<WorkerFetchResolver> r = new WorkerFetchResolver(proxy);
+ RefPtr<FetchSignalProxy> signalProxy;
+ if (aSignal) {
+ signalProxy = new FetchSignalProxy(aSignal);
+ }
+
+ RefPtr<WorkerFetchResolver> r = new WorkerFetchResolver(proxy, signalProxy);
return r.forget();
}
+ FetchSignal*
+ GetFetchSignal()
+ {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ if (!mSignalProxy) {
+ return nullptr;
+ }
+
+ return mSignalProxy->GetOrCreateSignalForMainThread();
+ }
+
void
OnResponseAvailableInternal(InternalResponse* aResponse) override;
void
- OnResponseEnd() override;
+ OnResponseEnd(FetchDriverObserver::EndReason eReason) override;
private:
- explicit WorkerFetchResolver(PromiseWorkerProxy* aProxy)
+ WorkerFetchResolver(PromiseWorkerProxy* aProxy,
+ FetchSignalProxy* aSignalProxy)
: mPromiseProxy(aProxy)
+ , mSignalProxy(aSignalProxy)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(mPromiseProxy);
+
}
~WorkerFetchResolver()
@@ -115,8 +211,12 @@ public:
mDocument = aDocument;
}
- virtual void OnResponseEnd() override
+ void OnResponseEnd(FetchDriverObserver::EndReason aReason) override
{
+ if (aReason == eAborted) {
+ mPromise->MaybeReject(NS_ERROR_DOM_ABORT_ERR);
+ }
+
FlushConsoleReport();
}
@@ -170,9 +270,11 @@ public:
fetch->SetWorkerScript(spec);
}
+ RefPtr<FetchSignal> signal = mResolver->GetFetchSignal();
+
// ...but release it before calling Fetch, because mResolver's callback can
// be called synchronously and they want the mutex, too.
- return fetch->Fetch(mResolver);
+ return fetch->Fetch(signal, mResolver);
}
};
@@ -210,6 +312,12 @@ FetchRequest(nsIGlobalObject* aGlobal, const RequestOrUSVString& aInput,
RefPtr<InternalRequest> r = request->GetInternalRequest();
+ RefPtr<FetchSignal> signal;
+ if (aInit.mSignal.WasPassed()) {
+ signal = &aInit.mSignal.Value();
+ // Let's FetchDriver to deal with an already aborted signal.
+ }
+
if (NS_IsMainThread()) {
nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(aGlobal);
nsCOMPtr<nsIDocument> doc;
@@ -240,7 +348,7 @@ FetchRequest(nsIGlobalObject* aGlobal, const RequestOrUSVString& aInput,
RefPtr<FetchDriver> fetch = new FetchDriver(r, principal, loadGroup);
fetch->SetDocument(doc);
resolver->SetDocument(doc);
- aRv = fetch->Fetch(resolver);
+ aRv = fetch->Fetch(signal, resolver);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
@@ -252,7 +360,7 @@ FetchRequest(nsIGlobalObject* aGlobal, const RequestOrUSVString& aInput,
r->SetSkipServiceWorker();
}
- RefPtr<WorkerFetchResolver> resolver = WorkerFetchResolver::Create(worker, p);
+ RefPtr<WorkerFetchResolver> resolver = WorkerFetchResolver::Create(worker, p, signal);
if (!resolver) {
NS_WARNING("Could not add WorkerFetchResolver workerHolder to worker");
aRv.Throw(NS_ERROR_DOM_ABORT_ERR);
@@ -306,6 +414,7 @@ public:
, mResolver(aResolver)
, mInternalResponse(aResponse)
{
+ MOZ_ASSERT(mResolver);
}
bool
@@ -332,9 +441,13 @@ public:
class WorkerFetchResponseEndBase
{
RefPtr<PromiseWorkerProxy> mPromiseProxy;
+ RefPtr<FetchSignalProxy> mSignalProxy;
+
public:
- explicit WorkerFetchResponseEndBase(PromiseWorkerProxy* aPromiseProxy)
+ WorkerFetchResponseEndBase(PromiseWorkerProxy* aPromiseProxy,
+ FetchSignalProxy* aSignalProxy)
: mPromiseProxy(aPromiseProxy)
+ , mSignalProxy(aSignalProxy)
{
MOZ_ASSERT(mPromiseProxy);
}
@@ -344,7 +457,16 @@ public:
{
MOZ_ASSERT(aWorkerPrivate);
aWorkerPrivate->AssertIsOnWorkerThread();
+
+ RefPtr<Promise> promise = mPromiseProxy->WorkerPromise();
+ promise->MaybeReject(NS_ERROR_DOM_ABORT_ERR);
+
mPromiseProxy->CleanUp();
+
+ if (mSignalProxy) {
+ mSignalProxy->Shutdown();
+ mSignalProxy = nullptr;
+ }
}
};
@@ -352,9 +474,10 @@ class WorkerFetchResponseEndRunnable final : public MainThreadWorkerRunnable
, public WorkerFetchResponseEndBase
{
public:
- explicit WorkerFetchResponseEndRunnable(PromiseWorkerProxy* aPromiseProxy)
+ WorkerFetchResponseEndRunnable(PromiseWorkerProxy* aPromiseProxy,
+ FetchSignalProxy* aSignalProxy)
: MainThreadWorkerRunnable(aPromiseProxy->GetWorkerPrivate())
- , WorkerFetchResponseEndBase(aPromiseProxy)
+ , WorkerFetchResponseEndBase(aPromiseProxy, aSignalProxy)
{
}
@@ -379,9 +502,10 @@ class WorkerFetchResponseEndControlRunnable final : public MainThreadWorkerContr
, public WorkerFetchResponseEndBase
{
public:
- explicit WorkerFetchResponseEndControlRunnable(PromiseWorkerProxy* aPromiseProxy)
+ WorkerFetchResponseEndControlRunnable(PromiseWorkerProxy* aPromiseProxy,
+ FetchSignalProxy* aSignalProxy)
: MainThreadWorkerControlRunnable(aPromiseProxy->GetWorkerPrivate())
- , WorkerFetchResponseEndBase(aPromiseProxy)
+ , WorkerFetchResponseEndBase(aPromiseProxy, aSignalProxy)
{
}
@@ -415,7 +539,7 @@ WorkerFetchResolver::OnResponseAvailableInternal(InternalResponse* aResponse)
}
void
-WorkerFetchResolver::OnResponseEnd()
+WorkerFetchResolver::OnResponseEnd(FetchDriverObserver::EndReason aReason)
{
AssertIsOnMainThread();
MutexAutoLock lock(mPromiseProxy->Lock());
@@ -426,11 +550,11 @@ WorkerFetchResolver::OnResponseEnd()
FlushConsoleReport();
RefPtr<WorkerFetchResponseEndRunnable> r =
- new WorkerFetchResponseEndRunnable(mPromiseProxy);
+ new WorkerFetchResponseEndRunnable(mPromiseProxy, mSignalProxy);
if (!r->Dispatch()) {
RefPtr<WorkerFetchResponseEndControlRunnable> cr =
- new WorkerFetchResponseEndControlRunnable(mPromiseProxy);
+ new WorkerFetchResponseEndControlRunnable(mPromiseProxy, mSignalProxy);
// This can fail if the worker thread is canceled or killed causing
// the PromiseWorkerProxy to give up its WorkerHolder immediately,
// allowing the worker thread to become Dead.
diff --git a/dom/fetch/FetchDriver.cpp b/dom/fetch/FetchDriver.cpp
index 6294b0dc5..448ec64cd 100644
--- a/dom/fetch/FetchDriver.cpp
+++ b/dom/fetch/FetchDriver.cpp
@@ -67,7 +67,7 @@ FetchDriver::~FetchDriver()
}
nsresult
-FetchDriver::Fetch(FetchDriverObserver* aObserver)
+FetchDriver::Fetch(FetchSignal* aSignal, FetchDriverObserver* aObserver)
{
workers::AssertIsOnMainThread();
#ifdef DEBUG
@@ -90,6 +90,18 @@ FetchDriver::Fetch(FetchDriverObserver* aObserver)
}
mRequest->SetPrincipalInfo(Move(principalInfo));
+
+ // If the signal is aborted, it's time to inform the observer and terminate
+ // the operation.
+ if (aSignal) {
+ if (aSignal->Aborted()) {
+ Aborted();
+ return NS_OK;
+ }
+
+ Follow(aSignal);
+ }
+
if (NS_FAILED(HttpFetch())) {
FailWithNetworkError();
}
@@ -114,11 +126,7 @@ FetchDriver::HttpFetch()
nsAutoCString url;
mRequest->GetURL(url);
nsCOMPtr<nsIURI> uri;
- rv = NS_NewURI(getter_AddRefs(uri),
- url,
- nullptr,
- nullptr,
- ios);
+ rv = NS_NewURI(getter_AddRefs(uri), url, nullptr, nullptr, ios);
NS_ENSURE_SUCCESS(rv, rv);
// Unsafe requests aren't allowed with when using no-core mode.
@@ -380,6 +388,8 @@ FetchDriver::HttpFetch()
NS_ENSURE_SUCCESS(rv, rv);
// Step 4 onwards of "HTTP Fetch" is handled internally by Necko.
+
+ mChannel = chan;
return NS_OK;
}
already_AddRefed<InternalResponse>
@@ -433,9 +443,11 @@ FetchDriver::FailWithNetworkError()
#ifdef DEBUG
mResponseAvailableCalled = true;
#endif
- mObserver->OnResponseEnd();
+ mObserver->OnResponseEnd(FetchDriverObserver::eByNetworking);
mObserver = nullptr;
}
+
+ mChannel = nullptr;
}
namespace {
@@ -777,10 +789,11 @@ FetchDriver::OnStopRequest(nsIRequest* aRequest,
#endif
}
- mObserver->OnResponseEnd();
+ mObserver->OnResponseEnd(FetchDriverObserver::eByNetworking);
mObserver = nullptr;
}
+ mChannel = nullptr;
return NS_OK;
}
@@ -921,5 +934,21 @@ FetchDriver::SetRequestHeaders(nsIHttpChannel* aChannel) const
}
}
+void FetchDriver::Aborted()
+{
+ if (mObserver) {
+#ifdef DEBUG
+ mResponseAvailableCalled = true;
+#endif
+ mObserver->OnResponseEnd(FetchDriverObserver::eAborted);
+ mObserver = nullptr;
+ }
+
+ if (mChannel) {
+ mChannel->Cancel(NS_BINDING_ABORTED);
+ mChannel = nullptr;
+ }
+}
+
} // namespace dom
} // namespace mozilla
diff --git a/dom/fetch/FetchDriver.h b/dom/fetch/FetchDriver.h
index f74298a48..0ca9a34ee 100644
--- a/dom/fetch/FetchDriver.h
+++ b/dom/fetch/FetchDriver.h
@@ -12,6 +12,7 @@
#include "nsIStreamListener.h"
#include "nsIThreadRetargetableStreamListener.h"
#include "mozilla/ConsoleReportCollector.h"
+#include "mozilla/dom/FetchSignal.h"
#include "mozilla/dom/SRIMetadata.h"
#include "mozilla/RefPtr.h"
@@ -49,7 +50,14 @@ public:
mGotResponseAvailable = true;
OnResponseAvailableInternal(aResponse);
}
- virtual void OnResponseEnd()
+
+ enum EndReason
+ {
+ eAborted,
+ eByNetworking,
+ };
+
+ virtual void OnResponseEnd(EndReason aReason)
{ };
nsIConsoleReportCollector* GetReporter() const
@@ -58,6 +66,7 @@ public:
}
virtual void FlushConsoleReport() = 0;
+
protected:
virtual ~FetchDriverObserver()
{ };
@@ -72,7 +81,8 @@ private:
class FetchDriver final : public nsIStreamListener,
public nsIChannelEventSink,
public nsIInterfaceRequestor,
- public nsIThreadRetargetableStreamListener
+ public nsIThreadRetargetableStreamListener,
+ public FetchSignal::Follower
{
public:
NS_DECL_ISUPPORTS
@@ -82,9 +92,12 @@ public:
NS_DECL_NSIINTERFACEREQUESTOR
NS_DECL_NSITHREADRETARGETABLESTREAMLISTENER
- explicit FetchDriver(InternalRequest* aRequest, nsIPrincipal* aPrincipal,
- nsILoadGroup* aLoadGroup);
- NS_IMETHOD Fetch(FetchDriverObserver* aObserver);
+ FetchDriver(InternalRequest* aRequest,
+ nsIPrincipal* aPrincipal,
+ nsILoadGroup* aLoadGroup);
+
+ nsresult Fetch(FetchSignal* aSignal,
+ FetchDriverObserver* aObserver);
void
SetDocument(nsIDocument* aDocument);
@@ -96,6 +109,11 @@ public:
mWorkerScript = aWorkerScirpt;
}
+ // FetchSignal::Follower
+
+ void
+ Aborted() override;
+
private:
nsCOMPtr<nsIPrincipal> mPrincipal;
nsCOMPtr<nsILoadGroup> mLoadGroup;
@@ -104,6 +122,7 @@ private:
nsCOMPtr<nsIOutputStream> mPipeOutputStream;
RefPtr<FetchDriverObserver> mObserver;
nsCOMPtr<nsIDocument> mDocument;
+ nsCOMPtr<nsIChannel> mChannel;
nsAutoPtr<SRICheckDataVerifier> mSRIDataVerifier;
SRIMetadata mSRIMetadata;
nsCString mWorkerScript;
diff --git a/dom/fetch/FetchSignal.cpp b/dom/fetch/FetchSignal.cpp
index 1924263e8..07ad6b53d 100644
--- a/dom/fetch/FetchSignal.cpp
+++ b/dom/fetch/FetchSignal.cpp
@@ -37,6 +37,10 @@ FetchSignal::FetchSignal(FetchController* aController,
, mAborted(aAborted)
{}
+FetchSignal::FetchSignal(bool aAborted)
+ : mAborted(aAborted)
+{}
+
JSObject*
FetchSignal::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
@@ -95,6 +99,10 @@ FetchSignal::CanAcceptFollower(FetchSignal::Follower* aFollower) const
{
MOZ_DIAGNOSTIC_ASSERT(aFollower);
+ if (!mController) {
+ return true;
+ }
+
if (aFollower == mController) {
return false;
}
diff --git a/dom/fetch/FetchSignal.h b/dom/fetch/FetchSignal.h
index 5d2f13c68..4970f03de 100644
--- a/dom/fetch/FetchSignal.h
+++ b/dom/fetch/FetchSignal.h
@@ -40,6 +40,7 @@ public:
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(FetchSignal, DOMEventTargetHelper)
FetchSignal(FetchController* aController, bool aAborted);
+ explicit FetchSignal(bool aAborted);
JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
diff --git a/dom/tests/mochitest/fetch/file_fetch_controller.html b/dom/tests/mochitest/fetch/file_fetch_controller.html
index 791d21b2b..026ff16a8 100644
--- a/dom/tests/mochitest/fetch/file_fetch_controller.html
+++ b/dom/tests/mochitest/fetch/file_fetch_controller.html
@@ -84,13 +84,94 @@ function testAbortEvent() {
fc.abort();
}
+function testAbortedFetch() {
+ var fc = new FetchController();
+ fc.abort();
+
+ fetch('data:,foo', { signal: fc.signal }).then(() => {
+ ok(false, "Fetch should not return a resolved promise");
+ }, e => {
+ is(e.name, "AbortError", "We have an abort error");
+ }).then(next);
+}
+
+function testFetchAndAbort() {
+ var fc = new FetchController();
+
+ var p = fetch('data:,foo', { signal: fc.signal });
+ fc.abort();
+
+ p.then(() => {
+ ok(false, "Fetch should not return a resolved promise");
+ }, e => {
+ is(e.name, "AbortError", "We have an abort error");
+ }).then(next);
+}
+
+function testWorkerAbortedFetch() {
+ function worker() {
+ var fc = new FetchController();
+ fc.abort();
+
+ fetch('data:,foo', { signal: fc.signal }).then(() => {
+ postMessage(false);
+ }, e => {
+ postMessage(e.name == "AbortError");
+ });
+ }
+
+ var str = worker.toString();
+ var content = str.substring(0, str.length - 1).split('\n').splice(1).join(' ');
+ var url = URL.createObjectURL(new Blob([content], { type: "application/javascript" }));
+ var w = new Worker(url);
+ w.onmessage = function(e) {
+ ok(e.data, "Abort + Fetch works in workers");
+ next();
+ }
+}
+
+function testWorkerFetchAndAbort() {
+ function worker() {
+ var fc = new FetchController();
+
+ var p = fetch('data:,foo', { signal: fc.signal });
+ fc.abort();
+
+ p.then(() => {
+ postMessage(false);
+ }, e => {
+ postMessage(e.name == "AbortError");
+ });
+ }
+
+ var str = worker.toString();
+ var content = str.substring(0, str.length - 1).split('\n').splice(1).join(' ');
+ var url = URL.createObjectURL(new Blob([content], { type: "application/javascript" }));
+ var w = new Worker(url);
+ w.onmessage = function(e) {
+ ok(e.data, "Abort + Fetch works in workers");
+ next();
+ }
+}
+
var steps = [
+ // Simple stuff
testWebIDL,
testUpdateData,
+
+ // Following algorithm
testFollowingOurself,
testFollowingOther,
testFollowingLoop,
+
+ // Event propagation
testAbortEvent,
+
+ // fetch + signaling
+ testAbortedFetch,
+ testFetchAndAbort,
+ testWorkerAbortedFetch,
+ testWorkerFetchAndAbort,
];
function next() {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 13:09:57 +0000