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Diffstat (limited to '')
| -rw-r--r-- | dom/serviceworkers/FetchEventOpProxyParent.cpp | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/dom/serviceworkers/FetchEventOpProxyParent.cpp b/dom/serviceworkers/FetchEventOpProxyParent.cpp new file mode 100644 index 0000000000..8146131739 --- /dev/null +++ b/dom/serviceworkers/FetchEventOpProxyParent.cpp @@ -0,0 +1,227 @@ +/* -*- 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 "FetchEventOpProxyParent.h" + +#include <utility> + +#include "mozilla/dom/FetchTypes.h" +#include "mozilla/dom/ServiceWorkerOpArgs.h" +#include "nsCOMPtr.h" +#include "nsIInputStream.h" + +#include "mozilla/Assertions.h" +#include "mozilla/DebugOnly.h" +#include "mozilla/Result.h" +#include "mozilla/ResultExtensions.h" +#include "mozilla/UniquePtr.h" +#include "mozilla/Unused.h" +#include "mozilla/dom/InternalResponse.h" +#include "mozilla/dom/PRemoteWorkerParent.h" +#include "mozilla/dom/PRemoteWorkerControllerParent.h" +#include "mozilla/dom/FetchEventOpParent.h" +#include "mozilla/ipc/BackgroundParent.h" +#include "mozilla/ipc/IPCStreamUtils.h" +#include "mozilla/RemoteLazyInputStreamStorage.h" + +namespace mozilla { + +using namespace ipc; + +namespace dom { + +namespace { + +nsresult MaybeDeserializeAndWrapForMainThread( + const Maybe<ChildToParentStream>& aSource, int64_t aBodyStreamSize, + Maybe<ParentToParentStream>& aSink, PBackgroundParent* aManager) { + if (aSource.isNothing()) { + return NS_OK; + } + + nsCOMPtr<nsIInputStream> deserialized = + DeserializeIPCStream(aSource->stream()); + + aSink = Some(ParentToParentStream()); + auto& uuid = aSink->uuid(); + + MOZ_TRY(nsID::GenerateUUIDInPlace(uuid)); + + auto storageOrErr = RemoteLazyInputStreamStorage::Get(); + + if (NS_WARN_IF(storageOrErr.isErr())) { + return storageOrErr.unwrapErr(); + } + + auto storage = storageOrErr.unwrap(); + storage->AddStream(deserialized, uuid); + return NS_OK; +} + +ParentToParentInternalResponse ToParentToParent( + const ChildToParentInternalResponse& aResponse, + NotNull<PBackgroundParent*> aBackgroundParent) { + ParentToParentInternalResponse parentToParentResponse( + aResponse.metadata(), Nothing(), aResponse.bodySize(), Nothing()); + + MOZ_ALWAYS_SUCCEEDS(MaybeDeserializeAndWrapForMainThread( + aResponse.body(), aResponse.bodySize(), parentToParentResponse.body(), + aBackgroundParent)); + MOZ_ALWAYS_SUCCEEDS(MaybeDeserializeAndWrapForMainThread( + aResponse.alternativeBody(), InternalResponse::UNKNOWN_BODY_SIZE, + parentToParentResponse.alternativeBody(), aBackgroundParent)); + + return parentToParentResponse; +} + +ParentToParentSynthesizeResponseArgs ToParentToParent( + const ChildToParentSynthesizeResponseArgs& aArgs, + NotNull<PBackgroundParent*> aBackgroundParent) { + return ParentToParentSynthesizeResponseArgs( + ToParentToParent(aArgs.internalResponse(), aBackgroundParent), + aArgs.closure(), aArgs.timeStamps()); +} + +ParentToParentFetchEventRespondWithResult ToParentToParent( + const ChildToParentFetchEventRespondWithResult& aResult, + NotNull<PBackgroundParent*> aBackgroundParent) { + switch (aResult.type()) { + case ChildToParentFetchEventRespondWithResult:: + TChildToParentSynthesizeResponseArgs: + return ToParentToParent(aResult.get_ChildToParentSynthesizeResponseArgs(), + aBackgroundParent); + + case ChildToParentFetchEventRespondWithResult::TResetInterceptionArgs: + return aResult.get_ResetInterceptionArgs(); + + case ChildToParentFetchEventRespondWithResult::TCancelInterceptionArgs: + return aResult.get_CancelInterceptionArgs(); + + default: + MOZ_CRASH("Invalid ParentToParentFetchEventRespondWithResult"); + } +} + +} // anonymous namespace + +/* static */ void FetchEventOpProxyParent::Create( + PRemoteWorkerParent* aManager, + RefPtr<ServiceWorkerFetchEventOpPromise::Private>&& aPromise, + const ParentToParentServiceWorkerFetchEventOpArgs& aArgs, + RefPtr<FetchEventOpParent> aReal, nsCOMPtr<nsIInputStream> aBodyStream) { + AssertIsInMainProcess(); + AssertIsOnBackgroundThread(); + MOZ_ASSERT(aManager); + MOZ_ASSERT(aReal); + + ParentToChildServiceWorkerFetchEventOpArgs copyArgs(aArgs.common(), Nothing(), + Nothing()); + if (aArgs.preloadResponse().isSome()) { + // Convert the preload response to ParentToChildInternalResponse. + copyArgs.preloadResponse() = Some(ToParentToChild( + aArgs.preloadResponse().ref(), WrapNotNull(aManager->Manager()))); + } + + if (aArgs.preloadResponseEndArgs().isSome()) { + copyArgs.preloadResponseEndArgs() = aArgs.preloadResponseEndArgs(); + } + + FetchEventOpProxyParent* actor = + new FetchEventOpProxyParent(std::move(aReal), std::move(aPromise)); + + // As long as the fetch event was pending, the FetchEventOpParent was + // responsible for keeping the preload response, if it already arrived. Once + // the fetch event starts it gives up the preload response (if any) and we + // need to add it to the arguments. Note that we have to make sure that the + // arguments don't contain the preload response already, otherwise we'll end + // up overwriting it with a Nothing. + Maybe<ParentToParentInternalResponse> preloadResponse; + Maybe<ResponseEndArgs> preloadResponseEndArgs; + Tie(preloadResponse, preloadResponseEndArgs) = + actor->mReal->OnStart(WrapNotNull(actor)); + if (copyArgs.preloadResponse().isNothing() && preloadResponse.isSome()) { + copyArgs.preloadResponse() = Some(ToParentToChild( + preloadResponse.ref(), WrapNotNull(aManager->Manager()))); + } + if (copyArgs.preloadResponseEndArgs().isNothing() && + preloadResponseEndArgs.isSome()) { + copyArgs.preloadResponseEndArgs() = preloadResponseEndArgs; + } + + IPCInternalRequest& copyRequest = copyArgs.common().internalRequest(); + + if (aBodyStream) { + copyRequest.body() = Some(ParentToChildStream()); + + RefPtr<RemoteLazyInputStream> stream = + RemoteLazyInputStream::WrapStream(aBodyStream); + MOZ_DIAGNOSTIC_ASSERT(stream); + + copyRequest.body().ref().get_ParentToChildStream().stream() = stream; + } + + Unused << aManager->SendPFetchEventOpProxyConstructor(actor, copyArgs); +} + +FetchEventOpProxyParent::~FetchEventOpProxyParent() { + AssertIsOnBackgroundThread(); +} + +FetchEventOpProxyParent::FetchEventOpProxyParent( + RefPtr<FetchEventOpParent>&& aReal, + RefPtr<ServiceWorkerFetchEventOpPromise::Private>&& aPromise) + : mReal(std::move(aReal)), mLifetimePromise(std::move(aPromise)) {} + +mozilla::ipc::IPCResult FetchEventOpProxyParent::RecvAsyncLog( + const nsCString& aScriptSpec, const uint32_t& aLineNumber, + const uint32_t& aColumnNumber, const nsCString& aMessageName, + nsTArray<nsString>&& aParams) { + AssertIsOnBackgroundThread(); + MOZ_ASSERT(mReal); + + Unused << mReal->SendAsyncLog(aScriptSpec, aLineNumber, aColumnNumber, + aMessageName, aParams); + + return IPC_OK(); +} + +mozilla::ipc::IPCResult FetchEventOpProxyParent::RecvRespondWith( + const ChildToParentFetchEventRespondWithResult& aResult) { + AssertIsOnBackgroundThread(); + MOZ_ASSERT(mReal); + + auto manager = WrapNotNull(mReal->Manager()); + auto backgroundParent = WrapNotNull(manager->Manager()); + Unused << mReal->SendRespondWith(ToParentToParent(aResult, backgroundParent)); + return IPC_OK(); +} + +mozilla::ipc::IPCResult FetchEventOpProxyParent::Recv__delete__( + const ServiceWorkerFetchEventOpResult& aResult) { + AssertIsOnBackgroundThread(); + MOZ_ASSERT(mLifetimePromise); + MOZ_ASSERT(mReal); + mReal->OnFinish(); + if (mLifetimePromise) { + mLifetimePromise->Resolve(aResult, __func__); + mLifetimePromise = nullptr; + mReal = nullptr; + } + + return IPC_OK(); +} + +void FetchEventOpProxyParent::ActorDestroy(ActorDestroyReason) { + AssertIsOnBackgroundThread(); + if (mLifetimePromise) { + mLifetimePromise->Reject(NS_ERROR_DOM_ABORT_ERR, __func__); + mLifetimePromise = nullptr; + mReal = nullptr; + } +} + +} // namespace dom +} // namespace mozilla |