Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 810 insertions, 0 deletions

diff --git a/dom/quota/StorageManager.cpp b/dom/quota/StorageManager.cpp
new file mode 100644
index 0000000000..ec1e5b274f
--- /dev/null
+++ b/dom/quota/StorageManager.cpp
@@ -0,0 +1,810 @@
+/* -*- 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 "StorageManager.h"
+#include "fs/FileSystemRequestHandler.h"
+
+#include <cstdint>
+#include <cstdlib>
+#include <utility>
+#include "ErrorList.h"
+#include "fs/FileSystemRequestHandler.h"
+#include "MainThreadUtils.h"
+#include "js/CallArgs.h"
+#include "js/TypeDecls.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/ErrorResult.h"
+#include "mozilla/MacroForEach.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/Mutex.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/Telemetry.h"
+#include "mozilla/TelemetryScalarEnums.h"
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/dom/FileSystemManager.h"
+#include "mozilla/dom/Promise.h"
+#include "mozilla/dom/PromiseWorkerProxy.h"
+#include "mozilla/dom/StorageManagerBinding.h"
+#include "mozilla/dom/WorkerCommon.h"
+#include "mozilla/dom/WorkerPrivate.h"
+#include "mozilla/dom/WorkerRunnable.h"
+#include "mozilla/dom/WorkerStatus.h"
+#include "mozilla/dom/quota/QuotaManagerService.h"
+#include "nsContentPermissionHelper.h"
+#include "nsContentUtils.h"
+#include "nsDebug.h"
+#include "nsError.h"
+#include "nsIGlobalObject.h"
+#include "nsIPrincipal.h"
+#include "nsIQuotaCallbacks.h"
+#include "nsIQuotaManagerService.h"
+#include "nsIQuotaRequests.h"
+#include "nsIQuotaResults.h"
+#include "nsIVariant.h"
+#include "nsLiteralString.h"
+#include "nsPIDOMWindow.h"
+#include "nsString.h"
+#include "nsStringFlags.h"
+#include "nsTLiteralString.h"
+#include "nscore.h"
+
+class JSObject;
+struct JSContext;
+struct nsID;
+
+namespace mozilla {
+class Runnable;
+}
+
+using namespace mozilla::dom::quota;
+
+namespace mozilla::dom {
+
+namespace {
+
+// This class is used to get quota usage, request persist and check persisted
+// status callbacks.
+class RequestResolver final : public nsIQuotaCallback {
+ public:
+  enum Type { Estimate, Persist, Persisted };
+
+ private:
+  class FinishWorkerRunnable;
+
+  // If this resolver was created for a window then mPromise must be non-null.
+  // Otherwise mProxy must be non-null.
+  RefPtr<Promise> mPromise;
+  RefPtr<PromiseWorkerProxy> mProxy;
+
+  nsresult mResultCode;
+  StorageEstimate mStorageEstimate;
+  const Type mType;
+  bool mPersisted;
+
+ public:
+  RequestResolver(Type aType, Promise* aPromise)
+      : mPromise(aPromise),
+        mResultCode(NS_OK),
+        mType(aType),
+        mPersisted(false) {
+    MOZ_ASSERT(NS_IsMainThread());
+    MOZ_ASSERT(aPromise);
+  }
+
+  RequestResolver(Type aType, PromiseWorkerProxy* aProxy)
+      : mProxy(aProxy), mResultCode(NS_OK), mType(aType), mPersisted(false) {
+    MOZ_ASSERT(NS_IsMainThread());
+    MOZ_ASSERT(aProxy);
+  }
+
+  void ResolveOrReject();
+
+  NS_DECL_THREADSAFE_ISUPPORTS
+  NS_DECL_NSIQUOTACALLBACK
+
+ private:
+  ~RequestResolver() = default;
+
+  nsresult GetStorageEstimate(nsIVariant* aResult);
+
+  nsresult GetPersisted(nsIVariant* aResult);
+
+  nsresult OnCompleteInternal(nsIQuotaRequest* aRequest);
+
+  nsresult Finish();
+};
+
+// This class is used to return promise on worker thread.
+class RequestResolver::FinishWorkerRunnable final : public WorkerRunnable {
+  RefPtr<RequestResolver> mResolver;
+
+ public:
+  explicit FinishWorkerRunnable(RequestResolver* aResolver)
+      : WorkerRunnable(aResolver->mProxy->GetWorkerPrivate(),
+                       "RequestResolver::FinishWorkerRunnable"),
+        mResolver(aResolver) {
+    MOZ_ASSERT(NS_IsMainThread());
+    MOZ_ASSERT(aResolver);
+  }
+
+  bool WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override;
+};
+
+class EstimateWorkerMainThreadRunnable final : public WorkerMainThreadRunnable {
+  RefPtr<PromiseWorkerProxy> mProxy;
+
+ public:
+  EstimateWorkerMainThreadRunnable(WorkerPrivate* aWorkerPrivate,
+                                   PromiseWorkerProxy* aProxy)
+      : WorkerMainThreadRunnable(aWorkerPrivate,
+                                 "StorageManager :: Estimate"_ns),
+        mProxy(aProxy) {
+    MOZ_ASSERT(aWorkerPrivate);
+    aWorkerPrivate->AssertIsOnWorkerThread();
+    MOZ_ASSERT(aProxy);
+  }
+
+  bool MainThreadRun() override;
+};
+
+class PersistedWorkerMainThreadRunnable final
+    : public WorkerMainThreadRunnable {
+  RefPtr<PromiseWorkerProxy> mProxy;
+
+ public:
+  PersistedWorkerMainThreadRunnable(WorkerPrivate* aWorkerPrivate,
+                                    PromiseWorkerProxy* aProxy)
+      : WorkerMainThreadRunnable(aWorkerPrivate,
+                                 "StorageManager :: Persisted"_ns),
+        mProxy(aProxy) {
+    MOZ_ASSERT(aWorkerPrivate);
+    aWorkerPrivate->AssertIsOnWorkerThread();
+    MOZ_ASSERT(aProxy);
+  }
+
+  bool MainThreadRun() override;
+};
+
+/*******************************************************************************
+ * PersistentStoragePermissionRequest
+ ******************************************************************************/
+
+class PersistentStoragePermissionRequest final
+    : public ContentPermissionRequestBase {
+  RefPtr<Promise> mPromise;
+
+ public:
+  PersistentStoragePermissionRequest(nsIPrincipal* aPrincipal,
+                                     nsPIDOMWindowInner* aWindow,
+                                     Promise* aPromise)
+      : ContentPermissionRequestBase(aPrincipal, aWindow,
+                                     "dom.storageManager"_ns,
+                                     "persistent-storage"_ns),
+        mPromise(aPromise) {
+    MOZ_ASSERT(aWindow);
+    MOZ_ASSERT(aPromise);
+  }
+
+  nsresult Start();
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(PersistentStoragePermissionRequest,
+                                           ContentPermissionRequestBase)
+
+  // nsIContentPermissionRequest
+  NS_IMETHOD Cancel(void) override;
+  NS_IMETHOD Allow(JS::Handle<JS::Value> choices) override;
+
+ private:
+  ~PersistentStoragePermissionRequest() = default;
+};
+
+nsresult Estimate(nsIPrincipal* aPrincipal, nsIQuotaCallback* aCallback,
+                  nsIQuotaRequest** aRequest) {
+  MOZ_ASSERT(aPrincipal);
+  MOZ_ASSERT(aCallback);
+  MOZ_ASSERT(aRequest);
+
+  // Firefox and Quota Manager have always used the schemeless origin group
+  // (https://storage.spec.whatwg.org/#schemeless-origin-group) for quota limit
+  // purposes. This has been to prevent a site/eTLD+1 from claiming more than
+  // its fair share of storage through the use of sub-domains. Because the limit
+  // is at the group level and the usage needs to make sense in the context of
+  // that limit, we also expose the group usage. Bug 1374970 reflects this
+  // reality and bug 1305665 tracks our plan to eliminate our use of groups for
+  // this.
+
+  nsCOMPtr<nsIQuotaManagerService> qms = QuotaManagerService::GetOrCreate();
+  if (NS_WARN_IF(!qms)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsIQuotaRequest> request;
+  nsresult rv = qms->Estimate(aPrincipal, getter_AddRefs(request));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  MOZ_ALWAYS_SUCCEEDS(request->SetCallback(aCallback));
+
+  request.forget(aRequest);
+  return NS_OK;
+};
+
+nsresult Persisted(nsIPrincipal* aPrincipal, nsIQuotaCallback* aCallback,
+                   nsIQuotaRequest** aRequest) {
+  MOZ_ASSERT(aPrincipal);
+  MOZ_ASSERT(aCallback);
+  MOZ_ASSERT(aRequest);
+
+  nsCOMPtr<nsIQuotaManagerService> qms = QuotaManagerService::GetOrCreate();
+  if (NS_WARN_IF(!qms)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsIQuotaRequest> request;
+  nsresult rv = qms->Persisted(aPrincipal, getter_AddRefs(request));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  // All the methods in nsIQuotaManagerService shouldn't synchronously fire
+  // any callbacks when they are being executed. Even when a result is ready,
+  // a new runnable should be dispatched to current thread to fire the callback
+  // asynchronously. It's safe to set the callback after we call Persisted().
+  MOZ_ALWAYS_SUCCEEDS(request->SetCallback(aCallback));
+
+  request.forget(aRequest);
+
+  return NS_OK;
+};
+
+already_AddRefed<Promise> ExecuteOpOnMainOrWorkerThread(
+    nsIGlobalObject* aGlobal, RequestResolver::Type aType, ErrorResult& aRv) {
+  MOZ_ASSERT(aGlobal);
+  MOZ_ASSERT_IF(aType == RequestResolver::Type::Persist, NS_IsMainThread());
+
+  RefPtr<Promise> promise = Promise::Create(aGlobal, aRv);
+  if (NS_WARN_IF(!promise)) {
+    return nullptr;
+  }
+
+  if (NS_IsMainThread()) {
+    nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(aGlobal);
+    if (NS_WARN_IF(!window)) {
+      aRv.Throw(NS_ERROR_FAILURE);
+      return nullptr;
+    }
+
+    nsCOMPtr<Document> doc = window->GetExtantDoc();
+    if (NS_WARN_IF(!doc)) {
+      aRv.Throw(NS_ERROR_FAILURE);
+      return nullptr;
+    }
+
+    nsCOMPtr<nsIPrincipal> principal = doc->NodePrincipal();
+    MOZ_ASSERT(principal);
+
+    // Storage Standard 7. API
+    // If origin is an opaque origin, then reject promise with a TypeError.
+    if (principal->GetIsNullPrincipal()) {
+      switch (aType) {
+        case RequestResolver::Type::Persisted:
+          promise->MaybeRejectWithTypeError(
+              "persisted() called for opaque origin");
+          break;
+        case RequestResolver::Type::Persist:
+          promise->MaybeRejectWithTypeError(
+              "persist() called for opaque origin");
+          break;
+        case RequestResolver::Type::Estimate:
+          promise->MaybeRejectWithTypeError(
+              "estimate() called for opaque origin");
+          break;
+      }
+
+      return promise.forget();
+    }
+
+    switch (aType) {
+      case RequestResolver::Type::Persisted: {
+        RefPtr<RequestResolver> resolver =
+            new RequestResolver(RequestResolver::Type::Persisted, promise);
+
+        RefPtr<nsIQuotaRequest> request;
+        aRv = Persisted(principal, resolver, getter_AddRefs(request));
+
+        break;
+      }
+
+      case RequestResolver::Type::Persist: {
+        RefPtr<PersistentStoragePermissionRequest> request =
+            new PersistentStoragePermissionRequest(principal, window, promise);
+
+        // In private browsing mode, no permission prompt.
+        if (nsContentUtils::IsInPrivateBrowsing(doc)) {
+          aRv = request->Cancel();
+        } else if (!request->CheckPermissionDelegate()) {
+          aRv = request->Cancel();
+        } else {
+          aRv = request->Start();
+        }
+
+        break;
+      }
+
+      case RequestResolver::Type::Estimate: {
+        RefPtr<RequestResolver> resolver =
+            new RequestResolver(RequestResolver::Type::Estimate, promise);
+
+        RefPtr<nsIQuotaRequest> request;
+        aRv = Estimate(principal, resolver, getter_AddRefs(request));
+
+        break;
+      }
+
+      default:
+        MOZ_CRASH("Invalid aRequest type!");
+    }
+
+    if (NS_WARN_IF(aRv.Failed())) {
+      return nullptr;
+    }
+
+    return promise.forget();
+  }
+
+  WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
+  MOZ_ASSERT(workerPrivate);
+
+  RefPtr<PromiseWorkerProxy> promiseProxy =
+      PromiseWorkerProxy::Create(workerPrivate, promise);
+  if (NS_WARN_IF(!promiseProxy)) {
+    aRv.Throw(NS_ERROR_FAILURE);
+    return nullptr;
+  }
+
+  switch (aType) {
+    case RequestResolver::Type::Estimate: {
+      RefPtr<EstimateWorkerMainThreadRunnable> runnnable =
+          new EstimateWorkerMainThreadRunnable(promiseProxy->GetWorkerPrivate(),
+                                               promiseProxy);
+      runnnable->Dispatch(Canceling, aRv);
+
+      break;
+    }
+
+    case RequestResolver::Type::Persisted: {
+      RefPtr<PersistedWorkerMainThreadRunnable> runnnable =
+          new PersistedWorkerMainThreadRunnable(
+              promiseProxy->GetWorkerPrivate(), promiseProxy);
+      runnnable->Dispatch(Canceling, aRv);
+
+      break;
+    }
+
+    default:
+      MOZ_CRASH("Invalid aRequest type");
+  }
+
+  if (NS_WARN_IF(aRv.Failed())) {
+    return nullptr;
+  }
+
+  return promise.forget();
+};
+
+}  // namespace
+
+/*******************************************************************************
+ * Local class implementations
+ ******************************************************************************/
+
+void RequestResolver::ResolveOrReject() {
+  class MOZ_STACK_CLASS AutoCleanup final {
+    RefPtr<PromiseWorkerProxy> mProxy;
+
+   public:
+    explicit AutoCleanup(PromiseWorkerProxy* aProxy) : mProxy(aProxy) {
+      MOZ_ASSERT(aProxy);
+    }
+
+    ~AutoCleanup() {
+      MOZ_ASSERT(mProxy);
+
+      mProxy->CleanUp();
+    }
+  };
+
+  RefPtr<Promise> promise;
+  Maybe<AutoCleanup> autoCleanup;
+
+  if (mPromise) {
+    promise = mPromise;
+  } else {
+    MOZ_ASSERT(mProxy);
+    promise = mProxy->GetWorkerPromise();
+    if (!promise) {
+      return;
+    }
+    // Only clean up for worker case.
+    autoCleanup.emplace(mProxy);
+  }
+
+  MOZ_ASSERT(promise);
+
+  if (mType == Type::Estimate) {
+    if (NS_SUCCEEDED(mResultCode)) {
+      promise->MaybeResolve(mStorageEstimate);
+    } else {
+      promise->MaybeRejectWithTypeError(
+          "Internal error while estimating storage usage");
+    }
+
+    return;
+  }
+
+  MOZ_ASSERT(mType == Type::Persist || mType == Type::Persisted);
+
+  if (NS_SUCCEEDED(mResultCode)) {
+    promise->MaybeResolve(mPersisted);
+  } else {
+    promise->MaybeResolve(false);
+  }
+}
+
+NS_IMPL_ISUPPORTS(RequestResolver, nsIQuotaCallback)
+
+nsresult RequestResolver::GetStorageEstimate(nsIVariant* aResult) {
+  MOZ_ASSERT(aResult);
+  MOZ_ASSERT(mType == Type::Estimate);
+
+  MOZ_ASSERT(aResult->GetDataType() == nsIDataType::VTYPE_INTERFACE_IS);
+
+  nsID* iid;
+  nsCOMPtr<nsISupports> supports;
+  nsresult rv = aResult->GetAsInterface(&iid, getter_AddRefs(supports));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  free(iid);
+
+  nsCOMPtr<nsIQuotaEstimateResult> estimateResult = do_QueryInterface(supports);
+  MOZ_ASSERT(estimateResult);
+
+  MOZ_ALWAYS_SUCCEEDS(
+      estimateResult->GetUsage(&mStorageEstimate.mUsage.Construct()));
+
+  MOZ_ALWAYS_SUCCEEDS(
+      estimateResult->GetLimit(&mStorageEstimate.mQuota.Construct()));
+
+  return NS_OK;
+}
+
+nsresult RequestResolver::GetPersisted(nsIVariant* aResult) {
+  MOZ_ASSERT(aResult);
+  MOZ_ASSERT(mType == Type::Persist || mType == Type::Persisted);
+
+#ifdef DEBUG
+  uint16_t dataType = aResult->GetDataType();
+#endif
+
+  if (mType == Type::Persist) {
+    MOZ_ASSERT(dataType == nsIDataType::VTYPE_VOID);
+
+    mPersisted = true;
+    return NS_OK;
+  }
+
+  MOZ_ASSERT(dataType == nsIDataType::VTYPE_BOOL);
+
+  bool persisted;
+  nsresult rv = aResult->GetAsBool(&persisted);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  mPersisted = persisted;
+  return NS_OK;
+}
+
+nsresult RequestResolver::OnCompleteInternal(nsIQuotaRequest* aRequest) {
+  MOZ_ASSERT(NS_IsMainThread());
+  MOZ_ASSERT(aRequest);
+
+  nsresult resultCode;
+  nsresult rv = aRequest->GetResultCode(&resultCode);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  if (NS_FAILED(resultCode)) {
+    return resultCode;
+  }
+
+  nsCOMPtr<nsIVariant> result;
+  rv = aRequest->GetResult(getter_AddRefs(result));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  if (mType == Type::Estimate) {
+    rv = GetStorageEstimate(result);
+  } else {
+    MOZ_ASSERT(mType == Type::Persist || mType == Type::Persisted);
+
+    rv = GetPersisted(result);
+  }
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  return NS_OK;
+}
+
+nsresult RequestResolver::Finish() {
+  // In a main thread request.
+  if (!mProxy) {
+    MOZ_ASSERT(mPromise);
+
+    ResolveOrReject();
+    return NS_OK;
+  }
+
+  {
+    // In a worker thread request.
+    MutexAutoLock lock(mProxy->Lock());
+
+    if (NS_WARN_IF(mProxy->CleanedUp())) {
+      return NS_ERROR_FAILURE;
+    }
+
+    RefPtr<FinishWorkerRunnable> runnable = new FinishWorkerRunnable(this);
+    if (NS_WARN_IF(!runnable->Dispatch())) {
+      return NS_ERROR_FAILURE;
+    }
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+RequestResolver::OnComplete(nsIQuotaRequest* aRequest) {
+  MOZ_ASSERT(NS_IsMainThread());
+  MOZ_ASSERT(aRequest);
+
+  mResultCode = OnCompleteInternal(aRequest);
+
+  nsresult rv = Finish();
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  return NS_OK;
+}
+
+bool RequestResolver::FinishWorkerRunnable::WorkerRun(
+    JSContext* aCx, WorkerPrivate* aWorkerPrivate) {
+  MOZ_ASSERT(aCx);
+  MOZ_ASSERT(aWorkerPrivate);
+  aWorkerPrivate->AssertIsOnWorkerThread();
+
+  MOZ_ASSERT(mResolver);
+  mResolver->ResolveOrReject();
+
+  return true;
+}
+
+bool EstimateWorkerMainThreadRunnable::MainThreadRun() {
+  MOZ_ASSERT(NS_IsMainThread());
+
+  nsCOMPtr<nsIPrincipal> principal;
+
+  {
+    MutexAutoLock lock(mProxy->Lock());
+    if (mProxy->CleanedUp()) {
+      return true;
+    }
+    principal = mProxy->GetWorkerPrivate()->GetPrincipal();
+  }
+
+  MOZ_ASSERT(principal);
+
+  RefPtr<RequestResolver> resolver =
+      new RequestResolver(RequestResolver::Type::Estimate, mProxy);
+
+  RefPtr<nsIQuotaRequest> request;
+  nsresult rv = Estimate(principal, resolver, getter_AddRefs(request));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return false;
+  }
+
+  return true;
+}
+
+bool PersistedWorkerMainThreadRunnable::MainThreadRun() {
+  MOZ_ASSERT(NS_IsMainThread());
+
+  nsCOMPtr<nsIPrincipal> principal;
+
+  {
+    MutexAutoLock lock(mProxy->Lock());
+    if (mProxy->CleanedUp()) {
+      return true;
+    }
+    principal = mProxy->GetWorkerPrivate()->GetPrincipal();
+  }
+
+  MOZ_ASSERT(principal);
+
+  RefPtr<RequestResolver> resolver =
+      new RequestResolver(RequestResolver::Type::Persisted, mProxy);
+
+  RefPtr<nsIQuotaRequest> request;
+  nsresult rv = Persisted(principal, resolver, getter_AddRefs(request));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return false;
+  }
+
+  return true;
+}
+
+nsresult PersistentStoragePermissionRequest::Start() {
+  MOZ_ASSERT(NS_IsMainThread());
+
+  PromptResult pr;
+#ifdef MOZ_WIDGET_ANDROID
+  // on Android calling `ShowPrompt` here calls
+  // `nsContentPermissionUtils::AskPermission` once, and a response of
+  // `PromptResult::Pending` calls it again. This results in multiple requests
+  // for storage access, so we check the prompt prefs only to ensure we only
+  // request it once.
+  pr = CheckPromptPrefs();
+#else
+  nsresult rv = ShowPrompt(pr);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+#endif
+  if (pr == PromptResult::Granted) {
+    return Allow(JS::UndefinedHandleValue);
+  }
+  if (pr == PromptResult::Denied) {
+    return Cancel();
+  }
+
+  return nsContentPermissionUtils::AskPermission(this, mWindow);
+}
+
+NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(
+    PersistentStoragePermissionRequest, ContentPermissionRequestBase)
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(PersistentStoragePermissionRequest,
+                                   ContentPermissionRequestBase, mPromise)
+
+NS_IMETHODIMP
+PersistentStoragePermissionRequest::Cancel() {
+  MOZ_ASSERT(NS_IsMainThread());
+  MOZ_ASSERT(mPromise);
+
+  RefPtr<RequestResolver> resolver =
+      new RequestResolver(RequestResolver::Type::Persisted, mPromise);
+
+  RefPtr<nsIQuotaRequest> request;
+
+  return Persisted(mPrincipal, resolver, getter_AddRefs(request));
+}
+
+NS_IMETHODIMP
+PersistentStoragePermissionRequest::Allow(JS::Handle<JS::Value> aChoices) {
+  MOZ_ASSERT(NS_IsMainThread());
+
+  RefPtr<RequestResolver> resolver =
+      new RequestResolver(RequestResolver::Type::Persist, mPromise);
+
+  nsCOMPtr<nsIQuotaManagerService> qms = QuotaManagerService::GetOrCreate();
+  if (NS_WARN_IF(!qms)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  RefPtr<nsIQuotaRequest> request;
+
+  nsresult rv = qms->Persist(mPrincipal, getter_AddRefs(request));
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  MOZ_ALWAYS_SUCCEEDS(request->SetCallback(resolver));
+
+  return NS_OK;
+}
+
+/*******************************************************************************
+ * StorageManager
+ ******************************************************************************/
+
+StorageManager::StorageManager(nsIGlobalObject* aGlobal) : mOwner(aGlobal) {
+  MOZ_ASSERT(aGlobal);
+}
+
+StorageManager::~StorageManager() { Shutdown(); }
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(StorageManager)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(StorageManager)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(StorageManager)
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(StorageManager)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(StorageManager)
+  tmp->Shutdown();
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mOwner)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(StorageManager)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOwner)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mFileSystemManager)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+void StorageManager::Shutdown() {
+  if (mFileSystemManager) {
+    mFileSystemManager->Shutdown();
+    mFileSystemManager = nullptr;
+  }
+}
+
+already_AddRefed<FileSystemManager> StorageManager::GetFileSystemManager() {
+  if (!mFileSystemManager) {
+    MOZ_ASSERT(mOwner);
+
+    mFileSystemManager = MakeRefPtr<FileSystemManager>(mOwner, this);
+  }
+
+  return do_AddRef(mFileSystemManager);
+}
+
+// WebIDL Boilerplate
+
+JSObject* StorageManager::WrapObject(JSContext* aCx,
+                                     JS::Handle<JSObject*> aGivenProto) {
+  return StorageManager_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+// WebIDL Interface
+
+already_AddRefed<Promise> StorageManager::Persisted(ErrorResult& aRv) {
+  MOZ_ASSERT(mOwner);
+
+  return ExecuteOpOnMainOrWorkerThread(mOwner, RequestResolver::Type::Persisted,
+                                       aRv);
+}
+
+already_AddRefed<Promise> StorageManager::Persist(ErrorResult& aRv) {
+  MOZ_ASSERT(mOwner);
+
+  Telemetry::ScalarAdd(Telemetry::ScalarID::NAVIGATOR_STORAGE_PERSIST_COUNT, 1);
+  return ExecuteOpOnMainOrWorkerThread(mOwner, RequestResolver::Type::Persist,
+                                       aRv);
+}
+
+already_AddRefed<Promise> StorageManager::Estimate(ErrorResult& aRv) {
+  MOZ_ASSERT(mOwner);
+
+  Telemetry::ScalarAdd(Telemetry::ScalarID::NAVIGATOR_STORAGE_ESTIMATE_COUNT,
+                       1);
+  return ExecuteOpOnMainOrWorkerThread(mOwner, RequestResolver::Type::Estimate,
+                                       aRv);
+}
+
+already_AddRefed<Promise> StorageManager::GetDirectory(ErrorResult& aRv) {
+  return RefPtr(GetFileSystemManager())->GetDirectory(aRv);
+}
+
+}  // namespace mozilla::dom