mirror of
https://github.com/mozilla/gecko-dev.git
synced 2025-11-04 10:18:41 +02:00
e4ddf24147
Sorry for the massive patch but I found it hard to split without introducing a bunch of copies around... This mostly makes necko and DOM agree on which strings to use, which should result on less copies and conversions. Differential Revision: https://phabricator.services.mozilla.com/D205601
613 lines
19 KiB
C++
613 lines
19 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/cache/Cache.h"
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#include "js/Array.h" // JS::GetArrayLength, JS::IsArrayObject
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#include "js/PropertyAndElement.h" // JS_GetElement
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#include "mozilla/dom/Headers.h"
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#include "mozilla/dom/InternalResponse.h"
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#include "mozilla/dom/Promise.h"
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#include "mozilla/dom/PromiseNativeHandler.h"
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#include "mozilla/dom/Response.h"
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#include "mozilla/dom/RootedDictionary.h"
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#include "mozilla/dom/WorkerPrivate.h"
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#include "mozilla/dom/CacheBinding.h"
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#include "mozilla/dom/cache/AutoUtils.h"
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#include "mozilla/dom/cache/CacheChild.h"
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#include "mozilla/dom/cache/CacheCommon.h"
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#include "mozilla/dom/cache/CacheWorkerRef.h"
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#include "mozilla/dom/quota/ResultExtensions.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/Unused.h"
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#include "nsIGlobalObject.h"
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namespace mozilla::dom::cache {
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using mozilla::ipc::PBackgroundChild;
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namespace {
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enum class PutStatusPolicy { Default, RequireOK };
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bool IsValidPutRequestURL(const nsACString& aUrl, ErrorResult& aRv) {
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bool validScheme = false;
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// make a copy because ProcessURL strips the fragmet
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nsAutoCString url(aUrl);
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TypeUtils::ProcessURL(url, &validScheme, nullptr, nullptr, aRv);
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if (aRv.Failed()) {
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return false;
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}
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if (!validScheme) {
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// `url` has been modified, so don't use it here.
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aRv.ThrowTypeError<MSG_INVALID_URL_SCHEME>("Request", aUrl);
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return false;
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}
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return true;
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}
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static bool IsValidPutRequestMethod(const Request& aRequest, ErrorResult& aRv) {
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nsAutoCString method;
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aRequest.GetMethod(method);
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if (!method.LowerCaseEqualsLiteral("get")) {
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aRv.ThrowTypeError<MSG_INVALID_REQUEST_METHOD>(method);
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return false;
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}
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return true;
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}
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static bool IsValidPutRequestMethod(const RequestOrUTF8String& aRequest,
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ErrorResult& aRv) {
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// If the provided request is a string URL, then it will default to
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// a valid http method automatically.
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if (!aRequest.IsRequest()) {
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return true;
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}
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return IsValidPutRequestMethod(aRequest.GetAsRequest(), aRv);
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}
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static bool IsValidPutResponseStatus(Response& aResponse,
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PutStatusPolicy aPolicy,
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ErrorResult& aRv) {
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if ((aPolicy == PutStatusPolicy::RequireOK && !aResponse.Ok()) ||
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aResponse.Status() == 206) {
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nsAutoCString url;
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aResponse.GetUrl(url);
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aRv.ThrowTypeError<MSG_CACHE_ADD_FAILED_RESPONSE>(
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GetEnumString(aResponse.Type()), IntToCString(aResponse.Status()), url);
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return false;
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}
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return true;
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}
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} // namespace
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// Helper class to wait for Add()/AddAll() fetch requests to complete and
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// then perform a PutAll() with the responses. This class holds a WorkerRef
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// to keep the Worker thread alive. This is mainly to ensure that Add/AddAll
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// act the same as other Cache operations that directly create a CacheOpChild
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// actor.
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class Cache::FetchHandler final : public PromiseNativeHandler {
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public:
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FetchHandler(SafeRefPtr<CacheWorkerRef> aWorkerRef, Cache* aCache,
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nsTArray<SafeRefPtr<Request>>&& aRequestList, Promise* aPromise)
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: mWorkerRef(std::move(aWorkerRef)),
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mCache(aCache),
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mRequestList(std::move(aRequestList)),
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mPromise(aPromise) {
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MOZ_ASSERT_IF(!NS_IsMainThread(), mWorkerRef);
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MOZ_DIAGNOSTIC_ASSERT(mCache);
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MOZ_DIAGNOSTIC_ASSERT(mPromise);
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}
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virtual void ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue,
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ErrorResult& aRv) override {
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NS_ASSERT_OWNINGTHREAD(FetchHandler);
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// Stop holding the worker alive when we leave this method.
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const SafeRefPtr<CacheWorkerRef> workerRef = std::move(mWorkerRef);
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// Promise::All() passed an array of fetch() Promises should give us
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// an Array of Response objects. The following code unwraps these
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// JS values back to an nsTArray<RefPtr<Response>>.
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AutoTArray<RefPtr<Response>, 256> responseList;
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responseList.SetCapacity(mRequestList.Length());
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const auto failOnErr = [this](const auto) { Fail(); };
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bool isArray;
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QM_TRY(OkIf(JS::IsArrayObject(aCx, aValue, &isArray)), QM_VOID, failOnErr);
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QM_TRY(OkIf(isArray), QM_VOID, failOnErr);
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JS::Rooted<JSObject*> obj(aCx, &aValue.toObject());
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uint32_t length;
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QM_TRY(OkIf(JS::GetArrayLength(aCx, obj, &length)), QM_VOID, failOnErr);
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for (uint32_t i = 0; i < length; ++i) {
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JS::Rooted<JS::Value> value(aCx);
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QM_TRY(OkIf(JS_GetElement(aCx, obj, i, &value)), QM_VOID, failOnErr);
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QM_TRY(OkIf(value.isObject()), QM_VOID, failOnErr);
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JS::Rooted<JSObject*> responseObj(aCx, &value.toObject());
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RefPtr<Response> response;
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QM_TRY(MOZ_TO_RESULT(UNWRAP_OBJECT(Response, responseObj, response)),
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QM_VOID, failOnErr);
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QM_TRY(OkIf(response->Type() != ResponseType::Error), QM_VOID, failOnErr);
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// Do not allow the convenience methods .add()/.addAll() to store failed
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// or invalid responses. A consequence of this is that these methods
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// cannot be used to store opaque or opaqueredirect responses since they
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// always expose a 0 status value.
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ErrorResult errorResult;
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if (!IsValidPutResponseStatus(*response, PutStatusPolicy::RequireOK,
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errorResult)) {
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// TODO: abort the fetch requests we have running (bug 1157434)
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mPromise->MaybeReject(std::move(errorResult));
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return;
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}
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responseList.AppendElement(std::move(response));
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}
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MOZ_DIAGNOSTIC_ASSERT(mRequestList.Length() == responseList.Length());
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// Now store the unwrapped Response list in the Cache.
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ErrorResult result;
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// TODO: Here we use the JSContext as received by the ResolvedCallback, and
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// its state could be the wrong one. The spec doesn't say anything
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// about it, yet (bug 1384006)
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RefPtr<Promise> put =
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mCache->PutAll(aCx, mRequestList, responseList, result);
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result.WouldReportJSException();
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if (NS_WARN_IF(result.Failed())) {
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// TODO: abort the fetch requests we have running (bug 1157434)
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mPromise->MaybeReject(std::move(result));
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return;
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}
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// Chain the Cache::Put() promise to the original promise returned to
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// the content script.
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mPromise->MaybeResolve(put);
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}
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virtual void RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue,
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ErrorResult& aRv) override {
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NS_ASSERT_OWNINGTHREAD(FetchHandler);
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Fail();
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}
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private:
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~FetchHandler() = default;
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void Fail() { mPromise->MaybeRejectWithTypeError<MSG_FETCH_FAILED>(); }
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SafeRefPtr<CacheWorkerRef> mWorkerRef;
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RefPtr<Cache> mCache;
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nsTArray<SafeRefPtr<Request>> mRequestList;
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RefPtr<Promise> mPromise;
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NS_DECL_ISUPPORTS
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};
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NS_IMPL_ISUPPORTS0(Cache::FetchHandler)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(mozilla::dom::cache::Cache);
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NS_IMPL_CYCLE_COLLECTING_RELEASE(mozilla::dom::cache::Cache);
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(mozilla::dom::cache::Cache, mGlobal);
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Cache)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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Cache::Cache(nsIGlobalObject* aGlobal, CacheChild* aActor, Namespace aNamespace)
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: mGlobal(aGlobal), mActor(aActor), mNamespace(aNamespace) {
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MOZ_DIAGNOSTIC_ASSERT(mGlobal);
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MOZ_DIAGNOSTIC_ASSERT(mActor);
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MOZ_DIAGNOSTIC_ASSERT(mNamespace != INVALID_NAMESPACE);
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mActor->SetListener(this);
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}
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already_AddRefed<Promise> Cache::Match(JSContext* aCx,
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const RequestOrUTF8String& aRequest,
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const CacheQueryOptions& aOptions,
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ErrorResult& aRv) {
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if (NS_WARN_IF(!mActor)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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CacheChild::AutoLock actorLock(*mActor);
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SafeRefPtr<InternalRequest> ir =
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ToInternalRequest(aCx, aRequest, IgnoreBody, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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CacheQueryParams params;
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ToCacheQueryParams(params, aOptions);
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AutoChildOpArgs args(
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this, CacheMatchArgs(CacheRequest(), params, GetOpenMode()), 1);
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args.Add(*ir, IgnoreBody, IgnoreInvalidScheme, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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return ExecuteOp(args, aRv);
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}
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already_AddRefed<Promise> Cache::MatchAll(
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JSContext* aCx, const Optional<RequestOrUTF8String>& aRequest,
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const CacheQueryOptions& aOptions, ErrorResult& aRv) {
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if (NS_WARN_IF(!mActor)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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CacheChild::AutoLock actorLock(*mActor);
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CacheQueryParams params;
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ToCacheQueryParams(params, aOptions);
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AutoChildOpArgs args(this,
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CacheMatchAllArgs(Nothing(), params, GetOpenMode()), 1);
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if (aRequest.WasPassed()) {
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SafeRefPtr<InternalRequest> ir =
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ToInternalRequest(aCx, aRequest.Value(), IgnoreBody, aRv);
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if (aRv.Failed()) {
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return nullptr;
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}
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args.Add(*ir, IgnoreBody, IgnoreInvalidScheme, aRv);
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if (aRv.Failed()) {
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return nullptr;
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}
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}
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return ExecuteOp(args, aRv);
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}
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already_AddRefed<Promise> Cache::Add(JSContext* aContext,
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const RequestOrUTF8String& aRequest,
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CallerType aCallerType, ErrorResult& aRv) {
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if (NS_WARN_IF(!mActor)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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CacheChild::AutoLock actorLock(*mActor);
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if (!IsValidPutRequestMethod(aRequest, aRv)) {
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return nullptr;
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}
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GlobalObject global(aContext, mGlobal->GetGlobalJSObject());
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MOZ_DIAGNOSTIC_ASSERT(!global.Failed());
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nsTArray<SafeRefPtr<Request>> requestList(1);
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RootedDictionary<RequestInit> requestInit(aContext);
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SafeRefPtr<Request> request =
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Request::Constructor(global, aRequest, requestInit, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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nsAutoCString url;
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request->GetUrl(url);
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if (NS_WARN_IF(!IsValidPutRequestURL(url, aRv))) {
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return nullptr;
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}
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requestList.AppendElement(std::move(request));
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return AddAll(global, std::move(requestList), aCallerType, aRv);
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}
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already_AddRefed<Promise> Cache::AddAll(
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JSContext* aContext,
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const Sequence<OwningRequestOrUTF8String>& aRequestList,
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CallerType aCallerType, ErrorResult& aRv) {
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if (NS_WARN_IF(!mActor)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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CacheChild::AutoLock actorLock(*mActor);
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GlobalObject global(aContext, mGlobal->GetGlobalJSObject());
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MOZ_DIAGNOSTIC_ASSERT(!global.Failed());
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nsTArray<SafeRefPtr<Request>> requestList(aRequestList.Length());
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for (uint32_t i = 0; i < aRequestList.Length(); ++i) {
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RequestOrUTF8String requestOrString;
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if (aRequestList[i].IsRequest()) {
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requestOrString.SetAsRequest() = aRequestList[i].GetAsRequest();
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if (NS_WARN_IF(
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!IsValidPutRequestMethod(requestOrString.GetAsRequest(), aRv))) {
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return nullptr;
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}
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} else {
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requestOrString.SetAsUTF8String().ShareOrDependUpon(
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aRequestList[i].GetAsUTF8String());
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}
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RootedDictionary<RequestInit> requestInit(aContext);
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SafeRefPtr<Request> request =
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Request::Constructor(global, requestOrString, requestInit, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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nsAutoCString url;
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request->GetUrl(url);
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if (NS_WARN_IF(!IsValidPutRequestURL(url, aRv))) {
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return nullptr;
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}
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requestList.AppendElement(std::move(request));
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}
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return AddAll(global, std::move(requestList), aCallerType, aRv);
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}
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already_AddRefed<Promise> Cache::Put(JSContext* aCx,
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const RequestOrUTF8String& aRequest,
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Response& aResponse, ErrorResult& aRv) {
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if (NS_WARN_IF(!mActor)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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CacheChild::AutoLock actorLock(*mActor);
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if (NS_WARN_IF(!IsValidPutRequestMethod(aRequest, aRv))) {
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return nullptr;
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}
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if (!IsValidPutResponseStatus(aResponse, PutStatusPolicy::Default, aRv)) {
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return nullptr;
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}
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if (NS_WARN_IF(aResponse.GetPrincipalInfo() &&
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aResponse.GetPrincipalInfo()->type() ==
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mozilla::ipc::PrincipalInfo::TExpandedPrincipalInfo)) {
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// WebExtensions Content Scripts can currently run fetch from their global
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// which will end up to have an expanded principal, but we require that the
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// contents of Cache storage for the content origin to be same-origin, and
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// never an expanded principal (See Bug 1753810).
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aRv.ThrowSecurityError("Disallowed on WebExtension ContentScript Request");
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return nullptr;
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}
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SafeRefPtr<InternalRequest> ir =
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ToInternalRequest(aCx, aRequest, ReadBody, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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AutoChildOpArgs args(this, CachePutAllArgs(), 1);
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args.Add(aCx, *ir, ReadBody, TypeErrorOnInvalidScheme, aResponse, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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return ExecuteOp(args, aRv);
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}
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already_AddRefed<Promise> Cache::Delete(JSContext* aCx,
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const RequestOrUTF8String& aRequest,
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const CacheQueryOptions& aOptions,
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ErrorResult& aRv) {
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if (NS_WARN_IF(!mActor)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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CacheChild::AutoLock actorLock(*mActor);
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SafeRefPtr<InternalRequest> ir =
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ToInternalRequest(aCx, aRequest, IgnoreBody, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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CacheQueryParams params;
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ToCacheQueryParams(params, aOptions);
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AutoChildOpArgs args(this, CacheDeleteArgs(CacheRequest(), params), 1);
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args.Add(*ir, IgnoreBody, IgnoreInvalidScheme, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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return ExecuteOp(args, aRv);
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}
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already_AddRefed<Promise> Cache::Keys(
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JSContext* aCx, const Optional<RequestOrUTF8String>& aRequest,
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const CacheQueryOptions& aOptions, ErrorResult& aRv) {
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if (NS_WARN_IF(!mActor)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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CacheChild::AutoLock actorLock(*mActor);
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CacheQueryParams params;
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ToCacheQueryParams(params, aOptions);
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AutoChildOpArgs args(this, CacheKeysArgs(Nothing(), params, GetOpenMode()),
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1);
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if (aRequest.WasPassed()) {
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SafeRefPtr<InternalRequest> ir =
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ToInternalRequest(aCx, aRequest.Value(), IgnoreBody, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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args.Add(*ir, IgnoreBody, IgnoreInvalidScheme, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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}
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return ExecuteOp(args, aRv);
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}
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nsISupports* Cache::GetParentObject() const { return mGlobal; }
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JSObject* Cache::WrapObject(JSContext* aContext,
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JS::Handle<JSObject*> aGivenProto) {
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return Cache_Binding::Wrap(aContext, this, aGivenProto);
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}
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void Cache::DestroyInternal(CacheChild* aActor) {
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MOZ_DIAGNOSTIC_ASSERT(mActor);
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MOZ_DIAGNOSTIC_ASSERT(mActor == aActor);
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mActor->ClearListener();
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mActor = nullptr;
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}
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nsIGlobalObject* Cache::GetGlobalObject() const { return mGlobal; }
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#ifdef DEBUG
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void Cache::AssertOwningThread() const { NS_ASSERT_OWNINGTHREAD(Cache); }
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#endif
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PBackgroundChild* Cache::GetIPCManager() {
|
|
NS_ASSERT_OWNINGTHREAD(Cache);
|
|
MOZ_DIAGNOSTIC_ASSERT(mActor);
|
|
return mActor->Manager();
|
|
}
|
|
|
|
Cache::~Cache() {
|
|
NS_ASSERT_OWNINGTHREAD(Cache);
|
|
if (mActor) {
|
|
mActor->StartDestroyFromListener();
|
|
// DestroyInternal() is called synchronously by StartDestroyFromListener().
|
|
// So we should have already cleared the mActor.
|
|
MOZ_DIAGNOSTIC_ASSERT(!mActor);
|
|
}
|
|
}
|
|
|
|
already_AddRefed<Promise> Cache::ExecuteOp(AutoChildOpArgs& aOpArgs,
|
|
ErrorResult& aRv) {
|
|
MOZ_DIAGNOSTIC_ASSERT(mActor);
|
|
|
|
RefPtr<Promise> promise = Promise::Create(mGlobal, aRv);
|
|
if (NS_WARN_IF(!promise)) {
|
|
return nullptr;
|
|
}
|
|
|
|
mActor->ExecuteOp(mGlobal, promise, this, aOpArgs.SendAsOpArgs());
|
|
return promise.forget();
|
|
}
|
|
|
|
already_AddRefed<Promise> Cache::AddAll(
|
|
const GlobalObject& aGlobal, nsTArray<SafeRefPtr<Request>>&& aRequestList,
|
|
CallerType aCallerType, ErrorResult& aRv) {
|
|
MOZ_DIAGNOSTIC_ASSERT(mActor);
|
|
|
|
// If there is no work to do, then resolve immediately
|
|
if (aRequestList.IsEmpty()) {
|
|
RefPtr<Promise> promise = Promise::Create(mGlobal, aRv);
|
|
if (NS_WARN_IF(!promise)) {
|
|
return nullptr;
|
|
}
|
|
|
|
promise->MaybeResolveWithUndefined();
|
|
return promise.forget();
|
|
}
|
|
|
|
AutoTArray<RefPtr<Promise>, 256> fetchList;
|
|
fetchList.SetCapacity(aRequestList.Length());
|
|
|
|
// Begin fetching each request in parallel. For now, if an error occurs just
|
|
// abandon our previous fetch calls. In theory we could cancel them in the
|
|
// future once fetch supports it.
|
|
|
|
for (uint32_t i = 0; i < aRequestList.Length(); ++i) {
|
|
RequestOrUTF8String requestOrString;
|
|
requestOrString.SetAsRequest() = aRequestList[i].unsafeGetRawPtr();
|
|
RootedDictionary<RequestInit> requestInit(aGlobal.Context());
|
|
RefPtr<Promise> fetch =
|
|
FetchRequest(mGlobal, requestOrString, requestInit, aCallerType, aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
|
|
fetchList.AppendElement(std::move(fetch));
|
|
}
|
|
|
|
RefPtr<Promise> promise = Promise::Create(mGlobal, aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<FetchHandler> handler =
|
|
new FetchHandler(mActor->GetWorkerRefPtr().clonePtr(), this,
|
|
std::move(aRequestList), promise);
|
|
|
|
RefPtr<Promise> fetchPromise =
|
|
Promise::All(aGlobal.Context(), fetchList, aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
fetchPromise->AppendNativeHandler(handler);
|
|
|
|
return promise.forget();
|
|
}
|
|
|
|
already_AddRefed<Promise> Cache::PutAll(
|
|
JSContext* aCx, const nsTArray<SafeRefPtr<Request>>& aRequestList,
|
|
const nsTArray<RefPtr<Response>>& aResponseList, ErrorResult& aRv) {
|
|
MOZ_DIAGNOSTIC_ASSERT(aRequestList.Length() == aResponseList.Length());
|
|
|
|
if (NS_WARN_IF(!mActor)) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return nullptr;
|
|
}
|
|
|
|
CacheChild::AutoLock actorLock(*mActor);
|
|
|
|
AutoChildOpArgs args(this, CachePutAllArgs(), aRequestList.Length());
|
|
|
|
for (uint32_t i = 0; i < aRequestList.Length(); ++i) {
|
|
SafeRefPtr<InternalRequest> ir = aRequestList[i]->GetInternalRequest();
|
|
args.Add(aCx, *ir, ReadBody, TypeErrorOnInvalidScheme, *aResponseList[i],
|
|
aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
return ExecuteOp(args, aRv);
|
|
}
|
|
|
|
OpenMode Cache::GetOpenMode() const {
|
|
return mNamespace == CHROME_ONLY_NAMESPACE ? OpenMode::Eager : OpenMode::Lazy;
|
|
}
|
|
|
|
} // namespace mozilla::dom::cache
|