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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "FetchEventOpProxyChild.h"
#include <utility>
#include "nsCOMPtr.h"
#include "nsDebug.h"
#include "nsThreadUtils.h"
#include "mozilla/Assertions.h"
#include "mozilla/RefPtr.h"
#include "mozilla/UniquePtr.h"
#include "mozilla/Unused.h"
#include "mozilla/dom/RemoteWorkerChild.h"
#include "mozilla/dom/RemoteWorkerService.h"
#include "mozilla/dom/ServiceWorkerOp.h"
#include "mozilla/dom/WorkerCommon.h"
#include "mozilla/ipc/BackgroundChild.h"
#include "mozilla/ipc/IPCStreamUtils.h"
namespace mozilla {
using namespace ipc;
namespace dom {
namespace {
nsresult GetIPCSynthesizeResponseArgs(
IPCSynthesizeResponseArgs* aIPCArgs, SynthesizeResponseArgs&& aArgs,
UniquePtr<AutoIPCStream>& aAutoBodyStream,
UniquePtr<AutoIPCStream>& aAutoAlternativeBodyStream) {
MOZ_ASSERT(RemoteWorkerService::Thread()->IsOnCurrentThread());
PBackgroundChild* bgChild = BackgroundChild::GetOrCreateForCurrentThread();
if (NS_WARN_IF(!bgChild)) {
return NS_ERROR_DOM_INVALID_STATE_ERR;
}
aArgs.first->ToIPC(&aIPCArgs->internalResponse(), bgChild, aAutoBodyStream,
aAutoAlternativeBodyStream);
aIPCArgs->closure() = std::move(aArgs.second);
return NS_OK;
}
} // anonymous namespace
void FetchEventOpProxyChild::Initialize(
const ServiceWorkerFetchEventOpArgs& aArgs) {
MOZ_ASSERT(RemoteWorkerService::Thread()->IsOnCurrentThread());
MOZ_ASSERT(!mOp);
mInternalRequest = MakeSafeRefPtr<InternalRequest>(aArgs.internalRequest());
RemoteWorkerChild* manager = static_cast<RemoteWorkerChild*>(Manager());
MOZ_ASSERT(manager);
RefPtr<FetchEventOpProxyChild> self = this;
auto callback = [self](const ServiceWorkerOpResult& aResult) {
if (!self->CanSend()) {
return;
}
if (NS_WARN_IF(aResult.type() == ServiceWorkerOpResult::Tnsresult)) {
Unused << self->Send__delete__(self, aResult.get_nsresult());
return;
}
MOZ_ASSERT(aResult.type() ==
ServiceWorkerOpResult::TServiceWorkerFetchEventOpResult);
Unused << self->Send__delete__(self, aResult);
};
RefPtr<FetchEventOp> op = ServiceWorkerOp::Create(aArgs, std::move(callback))
.template downcast<FetchEventOp>();
MOZ_ASSERT(op);
op->SetActor(this);
mOp = op;
op->GetRespondWithPromise()
->Then(GetCurrentSerialEventTarget(), __func__,
[self = std::move(self)](
FetchEventRespondWithPromise::ResolveOrRejectValue&& aResult) {
self->mRespondWithPromiseRequestHolder.Complete();
if (NS_WARN_IF(aResult.IsReject())) {
MOZ_ASSERT(NS_FAILED(aResult.RejectValue()));
Unused << self->SendRespondWith(
CancelInterceptionArgs(aResult.RejectValue()));
return;
}
auto& result = aResult.ResolveValue();
if (result.is<SynthesizeResponseArgs>()) {
IPCSynthesizeResponseArgs ipcArgs;
UniquePtr<AutoIPCStream> autoBodyStream =
MakeUnique<AutoIPCStream>();
UniquePtr<AutoIPCStream> autoAlternativeBodyStream =
MakeUnique<AutoIPCStream>();
nsresult rv = GetIPCSynthesizeResponseArgs(
&ipcArgs, result.extract<SynthesizeResponseArgs>(),
autoBodyStream, autoAlternativeBodyStream);
if (NS_WARN_IF(NS_FAILED(rv))) {
Unused << self->SendRespondWith(CancelInterceptionArgs(rv));
return;
}
Unused << self->SendRespondWith(ipcArgs);
if (ipcArgs.internalResponse().body()) {
autoBodyStream->TakeValue();
}
if (ipcArgs.internalResponse().alternativeBody()) {
autoAlternativeBodyStream->TakeValue();
}
} else if (result.is<ResetInterceptionArgs>()) {
Unused << self->SendRespondWith(
result.extract<ResetInterceptionArgs>());
} else {
Unused << self->SendRespondWith(
result.extract<CancelInterceptionArgs>());
}
})
->Track(mRespondWithPromiseRequestHolder);
manager->MaybeStartOp(std::move(op));
}
SafeRefPtr<InternalRequest> FetchEventOpProxyChild::ExtractInternalRequest() {
MOZ_ASSERT(IsCurrentThreadRunningWorker());
MOZ_ASSERT(mInternalRequest);
return std::move(mInternalRequest);
}
void FetchEventOpProxyChild::ActorDestroy(ActorDestroyReason) {
Unused << NS_WARN_IF(mRespondWithPromiseRequestHolder.Exists());
mRespondWithPromiseRequestHolder.DisconnectIfExists();
mOp->RevokeActor(this);
mOp = nullptr;
}
} // namespace dom
} // namespace mozilla