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-rw-r--r--dom/fs/parent/FileSystemAccessHandle.cpp232
-rw-r--r--dom/fs/parent/FileSystemAccessHandle.h107
-rw-r--r--dom/fs/parent/FileSystemAccessHandleControlParent.cpp45
-rw-r--r--dom/fs/parent/FileSystemAccessHandleControlParent.h43
-rw-r--r--dom/fs/parent/FileSystemAccessHandleParent.cpp37
-rw-r--r--dom/fs/parent/FileSystemAccessHandleParent.h38
-rw-r--r--dom/fs/parent/FileSystemContentTypeGuess.cpp21
-rw-r--r--dom/fs/parent/FileSystemContentTypeGuess.h21
-rw-r--r--dom/fs/parent/FileSystemHashSource.cpp67
-rw-r--r--dom/fs/parent/FileSystemHashSource.h26
-rw-r--r--dom/fs/parent/FileSystemManagerParent.cpp496
-rw-r--r--dom/fs/parent/FileSystemManagerParent.h87
-rw-r--r--dom/fs/parent/FileSystemManagerParentFactory.cpp114
-rw-r--r--dom/fs/parent/FileSystemManagerParentFactory.h39
-rw-r--r--dom/fs/parent/FileSystemQuotaClient.cpp245
-rw-r--r--dom/fs/parent/FileSystemQuotaClient.h25
-rw-r--r--dom/fs/parent/FileSystemStreamCallbacks.cpp38
-rw-r--r--dom/fs/parent/FileSystemStreamCallbacks.h38
-rw-r--r--dom/fs/parent/FileSystemWritableFileStreamParent.cpp77
-rw-r--r--dom/fs/parent/FileSystemWritableFileStreamParent.h55
-rw-r--r--dom/fs/parent/ResultConnection.h19
-rw-r--r--dom/fs/parent/ResultStatement.cpp23
-rw-r--r--dom/fs/parent/ResultStatement.h160
-rw-r--r--dom/fs/parent/datamodel/FileSystemDataManager.cpp573
-rw-r--r--dom/fs/parent/datamodel/FileSystemDataManager.h174
-rw-r--r--dom/fs/parent/datamodel/FileSystemDatabaseManager.cpp83
-rw-r--r--dom/fs/parent/datamodel/FileSystemDatabaseManager.h182
-rw-r--r--dom/fs/parent/datamodel/FileSystemDatabaseManagerVersion001.cpp1436
-rw-r--r--dom/fs/parent/datamodel/FileSystemDatabaseManagerVersion001.h137
-rw-r--r--dom/fs/parent/datamodel/FileSystemFileManager.cpp358
-rw-r--r--dom/fs/parent/datamodel/FileSystemFileManager.h159
-rw-r--r--dom/fs/parent/datamodel/SchemaVersion001.cpp185
-rw-r--r--dom/fs/parent/datamodel/SchemaVersion001.h25
-rw-r--r--dom/fs/parent/datamodel/moz.build26
-rw-r--r--dom/fs/parent/moz.build58
-rw-r--r--dom/fs/parent/rust/data-encoding-ffi/Cargo.toml9
-rw-r--r--dom/fs/parent/rust/data-encoding-ffi/cbindgen.toml11
-rw-r--r--dom/fs/parent/rust/data-encoding-ffi/src/lib.rs14
-rw-r--r--dom/fs/parent/rust/mime-guess-ffi/Cargo.toml9
-rw-r--r--dom/fs/parent/rust/mime-guess-ffi/cbindgen.toml11
-rw-r--r--dom/fs/parent/rust/mime-guess-ffi/src/lib.rs25
41 files changed, 5528 insertions, 0 deletions
diff --git a/dom/fs/parent/FileSystemAccessHandle.cpp b/dom/fs/parent/FileSystemAccessHandle.cpp
new file mode 100644
index 0000000000..61be18445e
--- /dev/null
+++ b/dom/fs/parent/FileSystemAccessHandle.cpp
@@ -0,0 +1,232 @@
+/* -*- 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 "FileSystemAccessHandle.h"
+
+#include "FileSystemDatabaseManager.h"
+#include "mozilla/Result.h"
+#include "mozilla/dom/FileSystemDataManager.h"
+#include "mozilla/dom/FileSystemHelpers.h"
+#include "mozilla/dom/FileSystemLog.h"
+#include "mozilla/dom/quota/FileStreams.h"
+#include "mozilla/dom/quota/QuotaCommon.h"
+#include "mozilla/dom/quota/RemoteQuotaObjectParent.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+#include "mozilla/ipc/RandomAccessStreamParams.h"
+#include "mozilla/ipc/RandomAccessStreamUtils.h"
+#include "nsIFileStreams.h"
+
+namespace mozilla::dom {
+
+FileSystemAccessHandle::FileSystemAccessHandle(
+ RefPtr<fs::data::FileSystemDataManager> aDataManager,
+ const fs::EntryId& aEntryId, MovingNotNull<RefPtr<TaskQueue>> aIOTaskQueue)
+ : mEntryId(aEntryId),
+ mDataManager(std::move(aDataManager)),
+ mIOTaskQueue(std::move(aIOTaskQueue)),
+ mActor(nullptr),
+ mControlActor(nullptr),
+ mRegCount(0),
+ mLocked(false),
+ mRegistered(false),
+ mClosed(false) {}
+
+FileSystemAccessHandle::~FileSystemAccessHandle() {
+ MOZ_DIAGNOSTIC_ASSERT(mClosed);
+}
+
+// static
+RefPtr<FileSystemAccessHandle::CreatePromise> FileSystemAccessHandle::Create(
+ RefPtr<fs::data::FileSystemDataManager> aDataManager,
+ const fs::EntryId& aEntryId) {
+ MOZ_ASSERT(aDataManager);
+ aDataManager->AssertIsOnIOTarget();
+
+ RefPtr<TaskQueue> ioTaskQueue = TaskQueue::Create(
+ do_AddRef(aDataManager->MutableIOTargetPtr()), "FileSystemAccessHandle");
+
+ RefPtr<FileSystemAccessHandle> accessHandle = new FileSystemAccessHandle(
+ std::move(aDataManager), aEntryId, WrapMovingNotNull(ioTaskQueue));
+
+ return accessHandle->BeginInit()->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [accessHandle = fs::Registered<FileSystemAccessHandle>(accessHandle)](
+ InitPromise::ResolveOrRejectValue&& value) mutable {
+ if (value.IsReject()) {
+ return CreatePromise::CreateAndReject(value.RejectValue(), __func__);
+ }
+
+ mozilla::ipc::RandomAccessStreamParams streamParams =
+ std::move(value.ResolveValue());
+
+ return CreatePromise::CreateAndResolve(
+ std::pair(std::move(accessHandle), std::move(streamParams)),
+ __func__);
+ });
+}
+
+NS_IMPL_ISUPPORTS_INHERITED0(FileSystemAccessHandle, FileSystemStreamCallbacks)
+
+void FileSystemAccessHandle::Register() { ++mRegCount; }
+
+void FileSystemAccessHandle::Unregister() {
+ MOZ_ASSERT(mRegCount > 0);
+
+ --mRegCount;
+
+ if (IsInactive() && IsOpen()) {
+ BeginClose();
+ }
+}
+
+void FileSystemAccessHandle::RegisterActor(
+ NotNull<FileSystemAccessHandleParent*> aActor) {
+ MOZ_ASSERT(!mActor);
+
+ mActor = aActor;
+}
+
+void FileSystemAccessHandle::UnregisterActor(
+ NotNull<FileSystemAccessHandleParent*> aActor) {
+ MOZ_ASSERT(mActor);
+ MOZ_ASSERT(mActor == aActor);
+
+ mActor = nullptr;
+
+ if (IsInactive() && IsOpen()) {
+ BeginClose();
+ }
+}
+
+void FileSystemAccessHandle::RegisterControlActor(
+ NotNull<FileSystemAccessHandleControlParent*> aControlActor) {
+ MOZ_ASSERT(!mControlActor);
+
+ mControlActor = aControlActor;
+}
+
+void FileSystemAccessHandle::UnregisterControlActor(
+ NotNull<FileSystemAccessHandleControlParent*> aControlActor) {
+ MOZ_ASSERT(mControlActor);
+ MOZ_ASSERT(mControlActor == aControlActor);
+
+ mControlActor = nullptr;
+
+ if (IsInactive() && IsOpen()) {
+ BeginClose();
+ }
+}
+
+bool FileSystemAccessHandle::IsOpen() const { return !mClosed; }
+
+RefPtr<BoolPromise> FileSystemAccessHandle::BeginClose() {
+ MOZ_ASSERT(IsOpen());
+
+ LOG(("Closing AccessHandle"));
+
+ mClosed = true;
+
+ return InvokeAsync(mIOTaskQueue.get(), __func__,
+ [self = RefPtr(this)]() {
+ if (self->mRemoteQuotaObjectParent) {
+ self->mRemoteQuotaObjectParent->Close();
+ }
+
+ return BoolPromise::CreateAndResolve(true, __func__);
+ })
+ ->Then(GetCurrentSerialEventTarget(), __func__,
+ [self = RefPtr(this)](const BoolPromise::ResolveOrRejectValue&) {
+ return self->mIOTaskQueue->BeginShutdown();
+ })
+ ->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [self = RefPtr(this)](const ShutdownPromise::ResolveOrRejectValue&) {
+ if (self->mLocked) {
+ self->mDataManager->UnlockExclusive(self->mEntryId);
+ }
+
+ return BoolPromise::CreateAndResolve(true, __func__);
+ })
+ ->Then(mDataManager->MutableBackgroundTargetPtr(), __func__,
+ [self = RefPtr(this)](const BoolPromise::ResolveOrRejectValue&) {
+ if (self->mRegistered) {
+ self->mDataManager->UnregisterAccessHandle(WrapNotNull(self));
+ }
+
+ self->mDataManager = nullptr;
+
+ return BoolPromise::CreateAndResolve(true, __func__);
+ });
+}
+
+bool FileSystemAccessHandle::IsInactive() const {
+ return !mRegCount && !mActor && !mControlActor;
+}
+
+RefPtr<FileSystemAccessHandle::InitPromise>
+FileSystemAccessHandle::BeginInit() {
+ QM_TRY(MOZ_TO_RESULT(mDataManager->LockExclusive(mEntryId)),
+ [](const nsresult aRv) {
+ return InitPromise::CreateAndReject(aRv, __func__);
+ });
+
+ mLocked = true;
+
+ auto CreateAndRejectInitPromise = [](const char* aFunc, nsresult aRv) {
+ return CreateAndRejectMozPromise<InitPromise>(aFunc, aRv);
+ };
+
+ fs::ContentType type;
+ fs::TimeStamp lastModifiedMilliSeconds;
+ fs::Path path;
+ nsCOMPtr<nsIFile> file;
+ QM_TRY(MOZ_TO_RESULT(mDataManager->MutableDatabaseManagerPtr()->GetFile(
+ mEntryId, type, lastModifiedMilliSeconds, path, file)),
+ CreateAndRejectInitPromise);
+
+ if (LOG_ENABLED()) {
+ nsAutoString path;
+ if (NS_SUCCEEDED(file->GetPath(path))) {
+ LOG(("Opening SyncAccessHandle %s", NS_ConvertUTF16toUTF8(path).get()));
+ }
+ }
+
+ return InvokeAsync(
+ mDataManager->MutableBackgroundTargetPtr(), __func__,
+ [self = RefPtr(this)]() {
+ self->mDataManager->RegisterAccessHandle(WrapNotNull(self));
+
+ self->mRegistered = true;
+
+ return BoolPromise::CreateAndResolve(true, __func__);
+ })
+ ->Then(mIOTaskQueue.get(), __func__,
+ [self = RefPtr(this), CreateAndRejectInitPromise,
+ file = std::move(file)](
+ const BoolPromise::ResolveOrRejectValue& value) {
+ if (value.IsReject()) {
+ return InitPromise::CreateAndReject(value.RejectValue(),
+ __func__);
+ }
+
+ QM_TRY_UNWRAP(nsCOMPtr<nsIRandomAccessStream> stream,
+ CreateFileRandomAccessStream(
+ quota::PERSISTENCE_TYPE_DEFAULT,
+ self->mDataManager->OriginMetadataRef(),
+ quota::Client::FILESYSTEM, file, -1, -1,
+ nsIFileRandomAccessStream::DEFER_OPEN),
+ CreateAndRejectInitPromise);
+
+ mozilla::ipc::RandomAccessStreamParams streamParams =
+ mozilla::ipc::SerializeRandomAccessStream(
+ WrapMovingNotNullUnchecked(std::move(stream)), self);
+
+ return InitPromise::CreateAndResolve(std::move(streamParams),
+ __func__);
+ });
+}
+
+} // namespace mozilla::dom
diff --git a/dom/fs/parent/FileSystemAccessHandle.h b/dom/fs/parent/FileSystemAccessHandle.h
new file mode 100644
index 0000000000..74b177d04d
--- /dev/null
+++ b/dom/fs/parent/FileSystemAccessHandle.h
@@ -0,0 +1,107 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_FILESYSTEMACCESSHANDLE_H_
+#define DOM_FS_PARENT_FILESYSTEMACCESSHANDLE_H_
+
+#include "FileSystemStreamCallbacks.h"
+#include "mozilla/MozPromise.h"
+#include "mozilla/NotNull.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/quota/ForwardDecls.h"
+#include "nsISupportsImpl.h"
+#include "nsString.h"
+
+enum class nsresult : uint32_t;
+
+namespace mozilla {
+
+class TaskQueue;
+
+namespace ipc {
+class RandomAccessStreamParams;
+}
+
+namespace dom {
+
+class FileSystemAccessHandleControlParent;
+class FileSystemAccessHandleParent;
+
+namespace fs {
+
+template <class T>
+class Registered;
+
+namespace data {
+
+class FileSystemDataManager;
+
+} // namespace data
+} // namespace fs
+
+class FileSystemAccessHandle : public FileSystemStreamCallbacks {
+ public:
+ using CreateResult = std::pair<fs::Registered<FileSystemAccessHandle>,
+ mozilla::ipc::RandomAccessStreamParams>;
+ // IsExclusive is true because we want to allow moving of CreateResult.
+ // There's always just one consumer anyway (When IsExclusive is true, there
+ // can be at most one call to either Then or ChainTo).
+ using CreatePromise = MozPromise<CreateResult, nsresult,
+ /* IsExclusive */ true>;
+ static RefPtr<CreatePromise> Create(
+ RefPtr<fs::data::FileSystemDataManager> aDataManager,
+ const fs::EntryId& aEntryId);
+
+ NS_DECL_ISUPPORTS_INHERITED
+
+ void Register();
+
+ void Unregister();
+
+ void RegisterActor(NotNull<FileSystemAccessHandleParent*> aActor);
+
+ void UnregisterActor(NotNull<FileSystemAccessHandleParent*> aActor);
+
+ void RegisterControlActor(
+ NotNull<FileSystemAccessHandleControlParent*> aControlActor);
+
+ void UnregisterControlActor(
+ NotNull<FileSystemAccessHandleControlParent*> aControlActor);
+
+ bool IsOpen() const;
+
+ RefPtr<BoolPromise> BeginClose();
+
+ private:
+ FileSystemAccessHandle(RefPtr<fs::data::FileSystemDataManager> aDataManager,
+ const fs::EntryId& aEntryId,
+ MovingNotNull<RefPtr<TaskQueue>> aIOTaskQueue);
+
+ ~FileSystemAccessHandle();
+
+ bool IsInactive() const;
+
+ using InitPromise =
+ MozPromise<mozilla::ipc::RandomAccessStreamParams, nsresult,
+ /* IsExclusive */ true>;
+ RefPtr<InitPromise> BeginInit();
+
+ const fs::EntryId mEntryId;
+ RefPtr<fs::data::FileSystemDataManager> mDataManager;
+ const NotNull<RefPtr<TaskQueue>> mIOTaskQueue;
+ FileSystemAccessHandleParent* mActor;
+ FileSystemAccessHandleControlParent* mControlActor;
+ nsAutoRefCnt mRegCount;
+ bool mLocked;
+ bool mRegistered;
+ bool mClosed;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // DOM_FS_PARENT_FILESYSTEMACCESSHANDLE_H_
diff --git a/dom/fs/parent/FileSystemAccessHandleControlParent.cpp b/dom/fs/parent/FileSystemAccessHandleControlParent.cpp
new file mode 100644
index 0000000000..90f325aeb5
--- /dev/null
+++ b/dom/fs/parent/FileSystemAccessHandleControlParent.cpp
@@ -0,0 +1,45 @@
+/* -*- 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 "FileSystemAccessHandleControlParent.h"
+
+#include "mozilla/dom/FileSystemAccessHandle.h"
+#include "mozilla/ipc/IPCCore.h"
+
+namespace mozilla::dom {
+
+FileSystemAccessHandleControlParent::FileSystemAccessHandleControlParent(
+ RefPtr<FileSystemAccessHandle> aAccessHandle)
+ : mAccessHandle(std::move(aAccessHandle)) {}
+
+FileSystemAccessHandleControlParent::~FileSystemAccessHandleControlParent() {
+ MOZ_ASSERT(mActorDestroyed);
+}
+
+mozilla::ipc::IPCResult FileSystemAccessHandleControlParent::RecvClose(
+ CloseResolver&& aResolver) {
+ mAccessHandle->BeginClose()->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [resolver = std::move(aResolver)](
+ const BoolPromise::ResolveOrRejectValue&) { resolver(void_t()); });
+
+ return IPC_OK();
+}
+
+void FileSystemAccessHandleControlParent::ActorDestroy(
+ ActorDestroyReason /* aWhy */) {
+ MOZ_ASSERT(!mActorDestroyed);
+
+#ifdef DEBUG
+ mActorDestroyed = true;
+#endif
+
+ mAccessHandle->UnregisterControlActor(WrapNotNullUnchecked(this));
+
+ mAccessHandle = nullptr;
+}
+
+} // namespace mozilla::dom
diff --git a/dom/fs/parent/FileSystemAccessHandleControlParent.h b/dom/fs/parent/FileSystemAccessHandleControlParent.h
new file mode 100644
index 0000000000..80e76a6e53
--- /dev/null
+++ b/dom/fs/parent/FileSystemAccessHandleControlParent.h
@@ -0,0 +1,43 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_FILESYSTEMACCESSHANDLECONTROLPARENT_H_
+#define DOM_FS_PARENT_FILESYSTEMACCESSHANDLECONTROLPARENT_H_
+
+#include "mozilla/dom/PFileSystemAccessHandleControlParent.h"
+#include "nsISupportsUtils.h"
+
+namespace mozilla::dom {
+
+class FileSystemAccessHandle;
+
+class FileSystemAccessHandleControlParent
+ : public PFileSystemAccessHandleControlParent {
+ public:
+ explicit FileSystemAccessHandleControlParent(
+ RefPtr<FileSystemAccessHandle> aAccessHandle);
+
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FileSystemAccessHandleControlParent,
+ override)
+
+ mozilla::ipc::IPCResult RecvClose(CloseResolver&& aResolver);
+
+ void ActorDestroy(ActorDestroyReason aWhy) override;
+
+ protected:
+ virtual ~FileSystemAccessHandleControlParent();
+
+ private:
+ RefPtr<FileSystemAccessHandle> mAccessHandle;
+
+#ifdef DEBUG
+ bool mActorDestroyed = false;
+#endif
+};
+
+} // namespace mozilla::dom
+
+#endif // DOM_FS_PARENT_FILESYSTEMACCESSHANDLECONTROLPARENT_H_
diff --git a/dom/fs/parent/FileSystemAccessHandleParent.cpp b/dom/fs/parent/FileSystemAccessHandleParent.cpp
new file mode 100644
index 0000000000..36d21fdd2d
--- /dev/null
+++ b/dom/fs/parent/FileSystemAccessHandleParent.cpp
@@ -0,0 +1,37 @@
+/* -*- 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 "FileSystemAccessHandleParent.h"
+
+#include "mozilla/dom/FileSystemAccessHandle.h"
+
+namespace mozilla::dom {
+
+FileSystemAccessHandleParent::FileSystemAccessHandleParent(
+ RefPtr<FileSystemAccessHandle> aAccessHandle)
+ : mAccessHandle(std::move(aAccessHandle)) {}
+
+FileSystemAccessHandleParent::~FileSystemAccessHandleParent() {
+ MOZ_ASSERT(mActorDestroyed);
+}
+
+mozilla::ipc::IPCResult FileSystemAccessHandleParent::RecvClose() {
+ mAccessHandle->BeginClose();
+
+ return IPC_OK();
+}
+
+void FileSystemAccessHandleParent::ActorDestroy(ActorDestroyReason aWhy) {
+ MOZ_ASSERT(!mActorDestroyed);
+
+ DEBUGONLY(mActorDestroyed = true);
+
+ mAccessHandle->UnregisterActor(WrapNotNullUnchecked(this));
+
+ mAccessHandle = nullptr;
+}
+
+} // namespace mozilla::dom
diff --git a/dom/fs/parent/FileSystemAccessHandleParent.h b/dom/fs/parent/FileSystemAccessHandleParent.h
new file mode 100644
index 0000000000..0efeab2539
--- /dev/null
+++ b/dom/fs/parent/FileSystemAccessHandleParent.h
@@ -0,0 +1,38 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_FILESYSTEMACCESSHANDLEPARENT_H_
+#define DOM_FS_PARENT_FILESYSTEMACCESSHANDLEPARENT_H_
+
+#include "mozilla/dom/PFileSystemAccessHandleParent.h"
+#include "mozilla/dom/quota/DebugOnlyMacro.h"
+
+namespace mozilla::dom {
+
+class FileSystemAccessHandle;
+
+class FileSystemAccessHandleParent : public PFileSystemAccessHandleParent {
+ public:
+ explicit FileSystemAccessHandleParent(
+ RefPtr<FileSystemAccessHandle> aAccessHandle);
+
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FileSystemAccessHandleParent, override)
+
+ mozilla::ipc::IPCResult RecvClose();
+
+ void ActorDestroy(ActorDestroyReason aWhy) override;
+
+ private:
+ virtual ~FileSystemAccessHandleParent();
+
+ RefPtr<FileSystemAccessHandle> mAccessHandle;
+
+ DEBUGONLY(bool mActorDestroyed = false);
+};
+
+} // namespace mozilla::dom
+
+#endif // DOM_FS_PARENT_FILESYSTEMACCESSHANDLEPARENT_H_
diff --git a/dom/fs/parent/FileSystemContentTypeGuess.cpp b/dom/fs/parent/FileSystemContentTypeGuess.cpp
new file mode 100644
index 0000000000..58a0e9901f
--- /dev/null
+++ b/dom/fs/parent/FileSystemContentTypeGuess.cpp
@@ -0,0 +1,21 @@
+/* -*- 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 "FileSystemContentTypeGuess.h"
+
+#include "mozilla/dom/mime_guess_ffi_generated.h"
+#include "nsString.h"
+
+namespace mozilla::dom::fs {
+
+ContentType FileSystemContentTypeGuess::FromPath(const Name& aPath) {
+ NS_ConvertUTF16toUTF8 path(aPath);
+ ContentType contentType;
+ mimeGuessFromPath(&path, &contentType);
+ return contentType;
+}
+
+} // namespace mozilla::dom::fs
diff --git a/dom/fs/parent/FileSystemContentTypeGuess.h b/dom/fs/parent/FileSystemContentTypeGuess.h
new file mode 100644
index 0000000000..08a3324942
--- /dev/null
+++ b/dom/fs/parent/FileSystemContentTypeGuess.h
@@ -0,0 +1,21 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_FILESYSTEMCONTENTTYPEGUESS_H_
+#define DOM_FS_PARENT_FILESYSTEMCONTENTTYPEGUESS_H_
+
+#include "mozilla/dom/FileSystemTypes.h"
+#include "nsStringFwd.h"
+
+namespace mozilla::dom::fs {
+
+struct FileSystemContentTypeGuess {
+ static ContentType FromPath(const Name& aPath);
+};
+
+} // namespace mozilla::dom::fs
+
+#endif // DOM_FS_PARENT_FILESYSTEMCONTENTTYPEGUESS_H_
diff --git a/dom/fs/parent/FileSystemHashSource.cpp b/dom/fs/parent/FileSystemHashSource.cpp
new file mode 100644
index 0000000000..eb43575371
--- /dev/null
+++ b/dom/fs/parent/FileSystemHashSource.cpp
@@ -0,0 +1,67 @@
+/* -*- 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 "FileSystemHashSource.h"
+
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/data_encoding_ffi_generated.h"
+#include "mozilla/dom/quota/QuotaCommon.h"
+#include "nsComponentManagerUtils.h"
+#include "nsICryptoHash.h"
+#include "nsNetCID.h"
+#include "nsString.h"
+#include "nsStringFwd.h"
+
+namespace mozilla::dom::fs::data {
+
+Result<EntryId, QMResult> FileSystemHashSource::GenerateHash(
+ const EntryId& aParent, const Name& aName) {
+ auto makeHasher = [](nsresult* aRv) {
+ return do_CreateInstance(NS_CRYPTO_HASH_CONTRACTID, aRv);
+ };
+ QM_TRY_INSPECT(const auto& hasher,
+ QM_TO_RESULT_TRANSFORM(MOZ_TO_RESULT_GET_TYPED(
+ nsCOMPtr<nsICryptoHash>, makeHasher)));
+
+ QM_TRY(QM_TO_RESULT(hasher->Init(nsICryptoHash::SHA256)));
+
+ QM_TRY(QM_TO_RESULT(
+ hasher->Update(reinterpret_cast<const uint8_t*>(aName.BeginReading()),
+ sizeof(char16_t) * aName.Length())));
+
+ QM_TRY(QM_TO_RESULT(
+ hasher->Update(reinterpret_cast<const uint8_t*>(aParent.BeginReading()),
+ aParent.Length())));
+
+ EntryId entryId;
+ QM_TRY(QM_TO_RESULT(hasher->Finish(/* aASCII */ false, entryId)));
+ MOZ_ASSERT(!entryId.IsEmpty());
+
+ return entryId;
+}
+
+Result<Name, QMResult> FileSystemHashSource::EncodeHash(
+ const EntryId& aEntryId) {
+ MOZ_ASSERT(32u == aEntryId.Length());
+ nsCString encoded;
+ base32encode(&aEntryId, &encoded);
+
+ // We are stripping last four padding characters because
+ // it may not be allowed in some file systems.
+ MOZ_ASSERT(56u == encoded.Length() && '=' == encoded[52u] &&
+ '=' == encoded[53u] && '=' == encoded[54u] && '=' == encoded[55u]);
+ encoded.SetLength(52u);
+
+ Name result;
+ QM_TRY(OkIf(result.SetCapacity(encoded.Length(), mozilla::fallible)),
+ Err(QMResult(NS_ERROR_OUT_OF_MEMORY)));
+
+ result.AppendASCII(encoded);
+
+ return result;
+}
+
+} // namespace mozilla::dom::fs::data
diff --git a/dom/fs/parent/FileSystemHashSource.h b/dom/fs/parent/FileSystemHashSource.h
new file mode 100644
index 0000000000..2b7ca0136f
--- /dev/null
+++ b/dom/fs/parent/FileSystemHashSource.h
@@ -0,0 +1,26 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_FILESYSTEMHASHSOURCE_H_
+#define DOM_FS_PARENT_FILESYSTEMHASHSOURCE_H_
+
+#include "mozilla/Result.h"
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/QMResult.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+
+namespace mozilla::dom::fs::data {
+
+struct FileSystemHashSource {
+ static Result<EntryId, QMResult> GenerateHash(const EntryId& aParent,
+ const Name& aName);
+
+ static Result<Name, QMResult> EncodeHash(const EntryId& aEntryId);
+};
+
+} // namespace mozilla::dom::fs::data
+
+#endif // DOM_FS_PARENT_FILESYSTEMHASHSOURCE_H_
diff --git a/dom/fs/parent/FileSystemManagerParent.cpp b/dom/fs/parent/FileSystemManagerParent.cpp
new file mode 100644
index 0000000000..a63a355f79
--- /dev/null
+++ b/dom/fs/parent/FileSystemManagerParent.cpp
@@ -0,0 +1,496 @@
+/* -*- 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 "FileSystemManagerParent.h"
+
+#include "FileSystemDatabaseManager.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/dom/FileBlobImpl.h"
+#include "mozilla/dom/FileSystemAccessHandle.h"
+#include "mozilla/dom/FileSystemAccessHandleControlParent.h"
+#include "mozilla/dom/FileSystemAccessHandleParent.h"
+#include "mozilla/dom/FileSystemDataManager.h"
+#include "mozilla/dom/FileSystemLog.h"
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/FileSystemWritableFileStreamParent.h"
+#include "mozilla/dom/IPCBlobUtils.h"
+#include "mozilla/dom/QMResult.h"
+#include "mozilla/dom/quota/FileStreams.h"
+#include "mozilla/dom/quota/ForwardDecls.h"
+#include "mozilla/dom/quota/QuotaCommon.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+#include "mozilla/ipc/BackgroundParent.h"
+#include "mozilla/ipc/FileDescriptorUtils.h"
+#include "mozilla/ipc/RandomAccessStreamUtils.h"
+#include "nsNetUtil.h"
+#include "nsString.h"
+#include "nsTArray.h"
+
+using IPCResult = mozilla::ipc::IPCResult;
+
+namespace mozilla::dom {
+
+FileSystemManagerParent::FileSystemManagerParent(
+ RefPtr<fs::data::FileSystemDataManager> aDataManager,
+ const EntryId& aRootEntry)
+ : mDataManager(std::move(aDataManager)), mRootResponse(aRootEntry) {}
+
+FileSystemManagerParent::~FileSystemManagerParent() {
+ LOG(("Destroying FileSystemManagerParent %p", this));
+}
+
+void FileSystemManagerParent::AssertIsOnIOTarget() const {
+ MOZ_ASSERT(mDataManager);
+
+ mDataManager->AssertIsOnIOTarget();
+}
+
+const RefPtr<fs::data::FileSystemDataManager>&
+FileSystemManagerParent::DataManagerStrongRef() const {
+ MOZ_ASSERT(!mActorDestroyed);
+ MOZ_ASSERT(mDataManager);
+
+ return mDataManager;
+}
+
+IPCResult FileSystemManagerParent::RecvGetRootHandle(
+ GetRootHandleResolver&& aResolver) {
+ AssertIsOnIOTarget();
+
+ aResolver(mRootResponse);
+
+ return IPC_OK();
+}
+
+IPCResult FileSystemManagerParent::RecvGetDirectoryHandle(
+ FileSystemGetHandleRequest&& aRequest,
+ GetDirectoryHandleResolver&& aResolver) {
+ LOG(("GetDirectoryHandle %s ",
+ NS_ConvertUTF16toUTF8(aRequest.handle().childName()).get()));
+ AssertIsOnIOTarget();
+ MOZ_ASSERT(!aRequest.handle().parentId().IsEmpty());
+ MOZ_ASSERT(mDataManager);
+
+ auto reportError = [&aResolver](const QMResult& aRv) {
+ FileSystemGetHandleResponse response(ToNSResult(aRv));
+ aResolver(response);
+ };
+
+ QM_TRY_UNWRAP(fs::EntryId entryId,
+ mDataManager->MutableDatabaseManagerPtr()->GetOrCreateDirectory(
+ aRequest.handle(), aRequest.create()),
+ IPC_OK(), reportError);
+ MOZ_ASSERT(!entryId.IsEmpty());
+
+ FileSystemGetHandleResponse response(entryId);
+ aResolver(response);
+
+ return IPC_OK();
+}
+
+IPCResult FileSystemManagerParent::RecvGetFileHandle(
+ FileSystemGetHandleRequest&& aRequest, GetFileHandleResolver&& aResolver) {
+ AssertIsOnIOTarget();
+ MOZ_ASSERT(!aRequest.handle().parentId().IsEmpty());
+ MOZ_ASSERT(mDataManager);
+
+ auto reportError = [&aResolver](const QMResult& aRv) {
+ FileSystemGetHandleResponse response(ToNSResult(aRv));
+ aResolver(response);
+ };
+
+ const ContentType& type = VoidCString(); // Currently cannot be set by user
+ QM_TRY_UNWRAP(fs::EntryId entryId,
+ mDataManager->MutableDatabaseManagerPtr()->GetOrCreateFile(
+ aRequest.handle(), type, aRequest.create()),
+ IPC_OK(), reportError);
+ MOZ_ASSERT(!entryId.IsEmpty());
+
+ FileSystemGetHandleResponse response(entryId);
+ aResolver(response);
+ return IPC_OK();
+}
+
+// Could use a template, but you need several types
+mozilla::ipc::IPCResult FileSystemManagerParent::RecvGetAccessHandle(
+ FileSystemGetAccessHandleRequest&& aRequest,
+ GetAccessHandleResolver&& aResolver) {
+ AssertIsOnIOTarget();
+ MOZ_ASSERT(mDataManager);
+
+ EntryId entryId = aRequest.entryId();
+
+ FileSystemAccessHandle::Create(mDataManager, entryId)
+ ->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [self = RefPtr(this), request = std::move(aRequest),
+ resolver = std::move(aResolver)](
+ FileSystemAccessHandle::CreatePromise::ResolveOrRejectValue&&
+ aValue) {
+ if (!self->CanSend()) {
+ return;
+ }
+
+ if (aValue.IsReject()) {
+ resolver(aValue.RejectValue());
+ return;
+ }
+
+ FileSystemAccessHandle::CreateResult result =
+ std::move(aValue.ResolveValue());
+
+ fs::Registered<FileSystemAccessHandle> accessHandle =
+ std::move(result.first);
+
+ RandomAccessStreamParams streamParams = std::move(result.second);
+
+ auto accessHandleParent = MakeRefPtr<FileSystemAccessHandleParent>(
+ accessHandle.inspect());
+
+ auto resolveAndReturn = [&resolver](nsresult rv) { resolver(rv); };
+
+ ManagedEndpoint<PFileSystemAccessHandleChild>
+ accessHandleChildEndpoint =
+ self->OpenPFileSystemAccessHandleEndpoint(
+ accessHandleParent);
+ QM_TRY(MOZ_TO_RESULT(accessHandleChildEndpoint.IsValid()),
+ resolveAndReturn);
+
+ accessHandle->RegisterActor(WrapNotNull(accessHandleParent));
+
+ auto accessHandleControlParent =
+ MakeRefPtr<FileSystemAccessHandleControlParent>(
+ accessHandle.inspect());
+
+ Endpoint<PFileSystemAccessHandleControlParent>
+ accessHandleControlParentEndpoint;
+ Endpoint<PFileSystemAccessHandleControlChild>
+ accessHandleControlChildEndpoint;
+ MOZ_ALWAYS_SUCCEEDS(PFileSystemAccessHandleControl::CreateEndpoints(
+ &accessHandleControlParentEndpoint,
+ &accessHandleControlChildEndpoint));
+
+ accessHandleControlParentEndpoint.Bind(accessHandleControlParent);
+
+ accessHandle->RegisterControlActor(
+ WrapNotNull(accessHandleControlParent));
+
+ resolver(FileSystemAccessHandleProperties(
+ std::move(streamParams), std::move(accessHandleChildEndpoint),
+ std::move(accessHandleControlChildEndpoint)));
+ });
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult FileSystemManagerParent::RecvGetWritable(
+ FileSystemGetWritableRequest&& aRequest, GetWritableResolver&& aResolver) {
+ AssertIsOnIOTarget();
+ MOZ_ASSERT(mDataManager);
+
+ auto reportError = [aResolver](nsresult rv) { aResolver(rv); };
+ const EntryId& entryId = aRequest.entryId();
+ // TODO: Change to LockShared after temporary files
+ QM_TRY(MOZ_TO_RESULT(mDataManager->LockExclusive(entryId)), IPC_OK(),
+ reportError);
+
+ auto autoUnlock = MakeScopeExit([self = RefPtr{this}, &entryId] {
+ // TODO: Change to UnlockShared after temporary files
+ self->mDataManager->UnlockExclusive(entryId);
+ });
+
+ fs::ContentType type;
+ fs::TimeStamp lastModifiedMilliSeconds;
+ fs::Path path;
+ nsCOMPtr<nsIFile> file;
+ QM_TRY(MOZ_TO_RESULT(mDataManager->MutableDatabaseManagerPtr()->GetFile(
+ entryId, type, lastModifiedMilliSeconds, path, file)),
+ IPC_OK(), reportError);
+
+ if (LOG_ENABLED()) {
+ nsAutoString path;
+ if (NS_SUCCEEDED(file->GetPath(path))) {
+ LOG(("Opening Writable %s", NS_ConvertUTF16toUTF8(path).get()));
+ }
+ }
+
+ auto writableFileStreamParent =
+ MakeNotNull<RefPtr<FileSystemWritableFileStreamParent>>(
+ this, aRequest.entryId());
+
+ QM_TRY_UNWRAP(
+ nsCOMPtr<nsIRandomAccessStream> stream,
+ CreateFileRandomAccessStream(quota::PERSISTENCE_TYPE_DEFAULT,
+ mDataManager->OriginMetadataRef(),
+ quota::Client::FILESYSTEM, file, -1, -1,
+ nsIFileRandomAccessStream::DEFER_OPEN),
+ IPC_OK(), reportError);
+
+ RandomAccessStreamParams streamParams =
+ mozilla::ipc::SerializeRandomAccessStream(
+ WrapMovingNotNullUnchecked(std::move(stream)),
+ writableFileStreamParent->GetOrCreateStreamCallbacks());
+
+ // Release the auto unlock helper just before calling
+ // SendPFileSystemWritableFileStreamConstructor which is responsible for
+ // destroying the actor if the sending fails (we call `UnlockExclusive` when
+ // the actor is destroyed).
+ autoUnlock.release();
+
+ if (!SendPFileSystemWritableFileStreamConstructor(writableFileStreamParent)) {
+ aResolver(NS_ERROR_FAILURE);
+ return IPC_OK();
+ }
+
+ aResolver(FileSystemWritableFileStreamProperties(std::move(streamParams),
+ writableFileStreamParent));
+
+ return IPC_OK();
+}
+
+IPCResult FileSystemManagerParent::RecvGetFile(
+ FileSystemGetFileRequest&& aRequest, GetFileResolver&& aResolver) {
+ AssertIsOnIOTarget();
+
+ // XXX Spec https://www.w3.org/TR/FileAPI/#dfn-file wants us to snapshot the
+ // state of the file at getFile() time
+
+ // You can create a File with getFile() even if the file is locked
+ // XXX factor out this part of the code for accesshandle/ and getfile
+ auto reportError = [aResolver](nsresult rv) {
+ LOG(("getFile() Failed!"));
+ aResolver(rv);
+ };
+
+ fs::ContentType type;
+ fs::TimeStamp lastModifiedMilliSeconds;
+ fs::Path path;
+ nsCOMPtr<nsIFile> fileObject;
+ QM_TRY(MOZ_TO_RESULT(mDataManager->MutableDatabaseManagerPtr()->GetFile(
+ aRequest.entryId(), type, lastModifiedMilliSeconds, path,
+ fileObject)),
+ IPC_OK(), reportError);
+
+ if (LOG_ENABLED()) {
+ nsAutoString path;
+ if (NS_SUCCEEDED(fileObject->GetPath(path))) {
+ LOG(("Opening File as blob: %s", NS_ConvertUTF16toUTF8(path).get()));
+ }
+ }
+
+ // TODO: Currently, there is no way to assign type and it is empty.
+ // See bug 1826780.
+ RefPtr<BlobImpl> blob = MakeRefPtr<FileBlobImpl>(
+ fileObject, path.LastElement(), NS_ConvertUTF8toUTF16(type));
+
+ IPCBlob ipcBlob;
+ QM_TRY(MOZ_TO_RESULT(IPCBlobUtils::Serialize(blob, ipcBlob)), IPC_OK(),
+ reportError);
+
+ aResolver(
+ FileSystemFileProperties(lastModifiedMilliSeconds, ipcBlob, type, path));
+ return IPC_OK();
+}
+
+IPCResult FileSystemManagerParent::RecvResolve(
+ FileSystemResolveRequest&& aRequest, ResolveResolver&& aResolver) {
+ AssertIsOnIOTarget();
+ MOZ_ASSERT(!aRequest.endpoints().parentId().IsEmpty());
+ MOZ_ASSERT(!aRequest.endpoints().childId().IsEmpty());
+ MOZ_ASSERT(mDataManager);
+
+ fs::Path filePath;
+ if (aRequest.endpoints().parentId() == aRequest.endpoints().childId()) {
+ FileSystemResolveResponse response(Some(FileSystemPath(filePath)));
+ aResolver(response);
+
+ return IPC_OK();
+ }
+
+ auto reportError = [&aResolver](const QMResult& aRv) {
+ FileSystemResolveResponse response(ToNSResult(aRv));
+ aResolver(response);
+ };
+
+ QM_TRY_UNWRAP(
+ filePath,
+ mDataManager->MutableDatabaseManagerPtr()->Resolve(aRequest.endpoints()),
+ IPC_OK(), reportError);
+
+ if (LOG_ENABLED()) {
+ nsString path;
+ for (auto& entry : filePath) {
+ path.Append(entry);
+ }
+ LOG(("Resolve path: %s", NS_ConvertUTF16toUTF8(path).get()));
+ }
+
+ if (filePath.IsEmpty()) {
+ FileSystemResolveResponse response(Nothing{});
+ aResolver(response);
+
+ return IPC_OK();
+ }
+
+ FileSystemResolveResponse response(Some(FileSystemPath(filePath)));
+ aResolver(response);
+
+ return IPC_OK();
+}
+
+IPCResult FileSystemManagerParent::RecvGetEntries(
+ FileSystemGetEntriesRequest&& aRequest, GetEntriesResolver&& aResolver) {
+ AssertIsOnIOTarget();
+ MOZ_ASSERT(!aRequest.parentId().IsEmpty());
+ MOZ_ASSERT(mDataManager);
+
+ auto reportError = [&aResolver](const QMResult& aRv) {
+ FileSystemGetEntriesResponse response(ToNSResult(aRv));
+ aResolver(response);
+ };
+
+ QM_TRY_UNWRAP(FileSystemDirectoryListing entries,
+ mDataManager->MutableDatabaseManagerPtr()->GetDirectoryEntries(
+ aRequest.parentId(), aRequest.page()),
+ IPC_OK(), reportError);
+
+ FileSystemGetEntriesResponse response(entries);
+ aResolver(response);
+
+ return IPC_OK();
+}
+
+IPCResult FileSystemManagerParent::RecvRemoveEntry(
+ FileSystemRemoveEntryRequest&& aRequest, RemoveEntryResolver&& aResolver) {
+ LOG(("RemoveEntry %s",
+ NS_ConvertUTF16toUTF8(aRequest.handle().childName()).get()));
+ AssertIsOnIOTarget();
+ MOZ_ASSERT(!aRequest.handle().parentId().IsEmpty());
+ MOZ_ASSERT(mDataManager);
+
+ auto reportError = [&aResolver](const QMResult& aRv) {
+ FileSystemRemoveEntryResponse response(ToNSResult(aRv));
+ aResolver(response);
+ };
+
+ QM_TRY_UNWRAP(
+ bool isDeleted,
+ mDataManager->MutableDatabaseManagerPtr()->RemoveFile(aRequest.handle()),
+ IPC_OK(), reportError);
+
+ if (isDeleted) {
+ FileSystemRemoveEntryResponse response(NS_OK);
+ aResolver(response);
+
+ return IPC_OK();
+ }
+
+ QM_TRY_UNWRAP(isDeleted,
+ mDataManager->MutableDatabaseManagerPtr()->RemoveDirectory(
+ aRequest.handle(), aRequest.recursive()),
+ IPC_OK(), reportError);
+
+ if (!isDeleted) {
+ FileSystemRemoveEntryResponse response(NS_ERROR_DOM_NOT_FOUND_ERR);
+ aResolver(response);
+
+ return IPC_OK();
+ }
+
+ FileSystemRemoveEntryResponse response(NS_OK);
+ aResolver(response);
+
+ return IPC_OK();
+}
+
+IPCResult FileSystemManagerParent::RecvMoveEntry(
+ FileSystemMoveEntryRequest&& aRequest, MoveEntryResolver&& aResolver) {
+ LOG(("MoveEntry %s to %s",
+ NS_ConvertUTF16toUTF8(aRequest.handle().entryName()).get(),
+ NS_ConvertUTF16toUTF8(aRequest.destHandle().childName()).get()));
+ MOZ_ASSERT(!aRequest.handle().entryId().IsEmpty());
+ MOZ_ASSERT(!aRequest.destHandle().parentId().IsEmpty());
+ MOZ_ASSERT(mDataManager);
+
+ auto reportError = [&aResolver](const QMResult& aRv) {
+ FileSystemMoveEntryResponse response(ToNSResult(aRv));
+ aResolver(response);
+ };
+
+ QM_TRY_UNWRAP(bool moved,
+ mDataManager->MutableDatabaseManagerPtr()->MoveEntry(
+ aRequest.handle(), aRequest.destHandle()),
+ IPC_OK(), reportError);
+
+ fs::FileSystemMoveEntryResponse response(moved ? NS_OK : NS_ERROR_FAILURE);
+ aResolver(response);
+ return IPC_OK();
+}
+
+IPCResult FileSystemManagerParent::RecvRenameEntry(
+ FileSystemRenameEntryRequest&& aRequest, MoveEntryResolver&& aResolver) {
+ // if destHandle's parentId is empty, then we're renaming in the same
+ // directory
+ LOG(("RenameEntry %s to %s",
+ NS_ConvertUTF16toUTF8(aRequest.handle().entryName()).get(),
+ NS_ConvertUTF16toUTF8(aRequest.name()).get()));
+ MOZ_ASSERT(!aRequest.handle().entryId().IsEmpty());
+ MOZ_ASSERT(mDataManager);
+
+ auto reportError = [&aResolver](const QMResult& aRv) {
+ FileSystemMoveEntryResponse response(ToNSResult(aRv));
+ aResolver(response);
+ };
+
+ QM_TRY_UNWRAP(bool moved,
+ mDataManager->MutableDatabaseManagerPtr()->RenameEntry(
+ aRequest.handle(), aRequest.name()),
+ IPC_OK(), reportError);
+
+ fs::FileSystemMoveEntryResponse response(moved ? NS_OK : NS_ERROR_FAILURE);
+ aResolver(response);
+ return IPC_OK();
+}
+
+void FileSystemManagerParent::RequestAllowToClose() {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ if (mRequestedAllowToClose) {
+ return;
+ }
+
+ mRequestedAllowToClose.Flip();
+
+ InvokeAsync(mDataManager->MutableIOTaskQueuePtr(), __func__,
+ [self = RefPtr<FileSystemManagerParent>(this)]() {
+ return self->SendCloseAll();
+ })
+ ->Then(mDataManager->MutableIOTaskQueuePtr(), __func__,
+ [self = RefPtr<FileSystemManagerParent>(this)](
+ const CloseAllPromise::ResolveOrRejectValue& aValue) {
+ self->Close();
+
+ return BoolPromise::CreateAndResolve(true, __func__);
+ });
+}
+
+void FileSystemManagerParent::ActorDestroy(ActorDestroyReason aWhy) {
+ AssertIsOnIOTarget();
+ MOZ_ASSERT(!mActorDestroyed);
+
+ DEBUGONLY(mActorDestroyed = true);
+
+ InvokeAsync(mDataManager->MutableBackgroundTargetPtr(), __func__,
+ [self = RefPtr<FileSystemManagerParent>(this)]() {
+ self->mDataManager->UnregisterActor(WrapNotNull(self));
+
+ self->mDataManager = nullptr;
+
+ return BoolPromise::CreateAndResolve(true, __func__);
+ });
+}
+
+} // namespace mozilla::dom
diff --git a/dom/fs/parent/FileSystemManagerParent.h b/dom/fs/parent/FileSystemManagerParent.h
new file mode 100644
index 0000000000..672a430621
--- /dev/null
+++ b/dom/fs/parent/FileSystemManagerParent.h
@@ -0,0 +1,87 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_FILESYSTEMMANAGERPARENT_H_
+#define DOM_FS_PARENT_FILESYSTEMMANAGERPARENT_H_
+
+#include "ErrorList.h"
+#include "mozilla/dom/FlippedOnce.h"
+#include "mozilla/dom/PFileSystemManagerParent.h"
+#include "mozilla/dom/quota/DebugOnlyMacro.h"
+#include "nsISupports.h"
+
+namespace mozilla::dom {
+
+namespace fs::data {
+class FileSystemDataManager;
+} // namespace fs::data
+
+class FileSystemManagerParent : public PFileSystemManagerParent {
+ public:
+ FileSystemManagerParent(RefPtr<fs::data::FileSystemDataManager> aDataManager,
+ const EntryId& aRootEntry);
+
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FileSystemManagerParent, override)
+
+ void AssertIsOnIOTarget() const;
+
+ // Safe to call while the actor is live.
+ const RefPtr<fs::data::FileSystemDataManager>& DataManagerStrongRef() const;
+
+ mozilla::ipc::IPCResult RecvGetRootHandle(GetRootHandleResolver&& aResolver);
+
+ mozilla::ipc::IPCResult RecvGetDirectoryHandle(
+ FileSystemGetHandleRequest&& aRequest,
+ GetDirectoryHandleResolver&& aResolver);
+
+ mozilla::ipc::IPCResult RecvGetFileHandle(
+ FileSystemGetHandleRequest&& aRequest, GetFileHandleResolver&& aResolver);
+
+ mozilla::ipc::IPCResult RecvGetAccessHandle(
+ FileSystemGetAccessHandleRequest&& aRequest,
+ GetAccessHandleResolver&& aResolver);
+
+ mozilla::ipc::IPCResult RecvGetWritable(
+ FileSystemGetWritableRequest&& aRequest, GetWritableResolver&& aResolver);
+
+ mozilla::ipc::IPCResult RecvGetFile(FileSystemGetFileRequest&& aRequest,
+ GetFileResolver&& aResolver);
+
+ mozilla::ipc::IPCResult RecvResolve(FileSystemResolveRequest&& aRequest,
+ ResolveResolver&& aResolver);
+
+ mozilla::ipc::IPCResult RecvGetEntries(FileSystemGetEntriesRequest&& aRequest,
+ GetEntriesResolver&& aResolver);
+
+ mozilla::ipc::IPCResult RecvRemoveEntry(
+ FileSystemRemoveEntryRequest&& aRequest, RemoveEntryResolver&& aResolver);
+
+ mozilla::ipc::IPCResult RecvMoveEntry(FileSystemMoveEntryRequest&& aRequest,
+ MoveEntryResolver&& aResolver);
+
+ mozilla::ipc::IPCResult RecvRenameEntry(
+ FileSystemRenameEntryRequest&& aRequest, MoveEntryResolver&& aResolver);
+
+ void RequestAllowToClose();
+
+ void ActorDestroy(ActorDestroyReason aWhy) override;
+
+ protected:
+ virtual ~FileSystemManagerParent();
+
+ private:
+ RefPtr<fs::data::FileSystemDataManager> mDataManager;
+
+ FileSystemGetHandleResponse mRootResponse;
+
+ FlippedOnce<false> mRequestedAllowToClose;
+
+ DEBUGONLY(bool mActorDestroyed = false);
+};
+
+} // namespace mozilla::dom
+
+#endif // DOM_FS_PARENT_FILESYSTEMMANAGERPARENT_H_
diff --git a/dom/fs/parent/FileSystemManagerParentFactory.cpp b/dom/fs/parent/FileSystemManagerParentFactory.cpp
new file mode 100644
index 0000000000..a7a4b13664
--- /dev/null
+++ b/dom/fs/parent/FileSystemManagerParentFactory.cpp
@@ -0,0 +1,114 @@
+/* -*- 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 "FileSystemManagerParentFactory.h"
+
+#include "mozilla/OriginAttributes.h"
+#include "mozilla/StaticPrefs_dom.h"
+#include "mozilla/dom/FileSystemDataManager.h"
+#include "mozilla/dom/FileSystemLog.h"
+#include "mozilla/dom/FileSystemManagerParent.h"
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/quota/QuotaCommon.h"
+#include "mozilla/dom/quota/QuotaManager.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+#include "mozilla/ipc/Endpoint.h"
+#include "nsIScriptObjectPrincipal.h"
+#include "nsString.h"
+
+namespace mozilla::dom {
+mozilla::ipc::IPCResult CreateFileSystemManagerParent(
+ const mozilla::ipc::PrincipalInfo& aPrincipalInfo,
+ mozilla::ipc::Endpoint<PFileSystemManagerParent>&& aParentEndpoint,
+ std::function<void(const nsresult&)>&& aResolver) {
+ using CreateActorPromise =
+ MozPromise<RefPtr<FileSystemManagerParent>, nsresult, true>;
+
+ QM_TRY(OkIf(StaticPrefs::dom_fs_enabled()), IPC_OK(),
+ [aResolver](const auto&) { aResolver(NS_ERROR_DOM_NOT_ALLOWED_ERR); });
+
+ QM_TRY(OkIf(aParentEndpoint.IsValid()), IPC_OK(),
+ [aResolver](const auto&) { aResolver(NS_ERROR_INVALID_ARG); });
+
+ // This blocks Null and Expanded principals
+ QM_TRY(OkIf(quota::QuotaManager::IsPrincipalInfoValid(aPrincipalInfo)),
+ IPC_OK(),
+ [aResolver](const auto&) { aResolver(NS_ERROR_DOM_SECURITY_ERR); });
+
+ QM_TRY(quota::QuotaManager::EnsureCreated(), IPC_OK(),
+ [aResolver](const auto rv) { aResolver(rv); });
+
+ auto* const quotaManager = quota::QuotaManager::Get();
+ MOZ_ASSERT(quotaManager);
+
+ QM_TRY_UNWRAP(auto principalMetadata,
+ quotaManager->GetInfoFromValidatedPrincipalInfo(aPrincipalInfo),
+ IPC_OK(), [aResolver](const auto rv) { aResolver(rv); });
+
+ quota::OriginMetadata originMetadata(std::move(principalMetadata),
+ quota::PERSISTENCE_TYPE_DEFAULT);
+
+ // Block use for now in PrivateBrowsing
+ QM_TRY(OkIf(!OriginAttributes::IsPrivateBrowsing(originMetadata.mOrigin)),
+ IPC_OK(),
+ [aResolver](const auto&) { aResolver(NS_ERROR_DOM_NOT_ALLOWED_ERR); });
+
+ LOG(("CreateFileSystemManagerParent, origin: %s",
+ originMetadata.mOrigin.get()));
+
+ // This creates the file system data manager, which has to be done on
+ // PBackground
+ fs::data::FileSystemDataManager::GetOrCreateFileSystemDataManager(
+ originMetadata)
+ ->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [origin = originMetadata.mOrigin,
+ parentEndpoint = std::move(aParentEndpoint),
+ aResolver](const fs::Registered<fs::data::FileSystemDataManager>&
+ dataManager) mutable {
+ QM_TRY_UNWRAP(
+ fs::EntryId rootId, fs::data::GetRootHandle(origin), QM_VOID,
+ [aResolver](const auto& aRv) { aResolver(ToNSResult(aRv)); });
+
+ InvokeAsync(
+ dataManager->MutableIOTaskQueuePtr(), __func__,
+ [dataManager =
+ RefPtr<fs::data::FileSystemDataManager>(dataManager),
+ rootId, parentEndpoint = std::move(parentEndpoint)]() mutable {
+ RefPtr<FileSystemManagerParent> parent =
+ new FileSystemManagerParent(std::move(dataManager),
+ rootId);
+
+ LOG(("Binding parent endpoint"));
+ if (!parentEndpoint.Bind(parent)) {
+ return CreateActorPromise::CreateAndReject(NS_ERROR_FAILURE,
+ __func__);
+ }
+
+ return CreateActorPromise::CreateAndResolve(std::move(parent),
+ __func__);
+ })
+ ->Then(GetCurrentSerialEventTarget(), __func__,
+ [dataManager = dataManager, aResolver](
+ CreateActorPromise::ResolveOrRejectValue&& aValue) {
+ if (aValue.IsReject()) {
+ aResolver(aValue.RejectValue());
+ } else {
+ RefPtr<FileSystemManagerParent> parent =
+ std::move(aValue.ResolveValue());
+
+ dataManager->RegisterActor(WrapNotNull(parent));
+
+ aResolver(NS_OK);
+ }
+ });
+ },
+ [aResolver](nsresult aRejectValue) { aResolver(aRejectValue); });
+
+ return IPC_OK();
+}
+
+} // namespace mozilla::dom
diff --git a/dom/fs/parent/FileSystemManagerParentFactory.h b/dom/fs/parent/FileSystemManagerParentFactory.h
new file mode 100644
index 0000000000..6d581ffa3f
--- /dev/null
+++ b/dom/fs/parent/FileSystemManagerParentFactory.h
@@ -0,0 +1,39 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_FILESYSTEMMANAGER_H_
+#define DOM_FS_PARENT_FILESYSTEMMANAGER_H_
+
+#include <functional>
+
+enum class nsresult : uint32_t;
+
+namespace mozilla {
+
+namespace ipc {
+
+template <class T>
+class Endpoint;
+
+class IPCResult;
+class PrincipalInfo;
+
+} // namespace ipc
+
+namespace dom {
+
+class PFileSystemManagerParent;
+
+mozilla::ipc::IPCResult CreateFileSystemManagerParent(
+ const mozilla::ipc::PrincipalInfo& aPrincipalInfo,
+ mozilla::ipc::Endpoint<mozilla::dom::PFileSystemManagerParent>&&
+ aParentEndpoint,
+ std::function<void(const nsresult&)>&& aResolver);
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // DOM_FS_PARENT_FILESYSTEMMANAGER_H_
diff --git a/dom/fs/parent/FileSystemQuotaClient.cpp b/dom/fs/parent/FileSystemQuotaClient.cpp
new file mode 100644
index 0000000000..e1fb3818b7
--- /dev/null
+++ b/dom/fs/parent/FileSystemQuotaClient.cpp
@@ -0,0 +1,245 @@
+/* -*- 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 "FileSystemQuotaClient.h"
+
+#include "ResultStatement.h"
+#include "datamodel/FileSystemDatabaseManager.h"
+#include "datamodel/FileSystemFileManager.h"
+#include "mozIStorageService.h"
+#include "mozStorageCID.h"
+#include "mozilla/dom/FileSystemDataManager.h"
+#include "mozilla/dom/quota/Assertions.h"
+#include "mozilla/dom/quota/Client.h"
+#include "mozilla/dom/quota/QuotaCommon.h"
+#include "mozilla/dom/quota/QuotaManager.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+#include "mozilla/dom/quota/UsageInfo.h"
+#include "mozilla/ipc/BackgroundParent.h"
+#include "nsIFile.h"
+
+namespace mozilla::dom::fs {
+
+namespace {
+
+auto toNSResult = [](const auto& aRv) { return ToNSResult(aRv); };
+
+class QuotaClient final : public mozilla::dom::quota::Client {
+ public:
+ QuotaClient();
+
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(mozilla::dom::fs::QuotaClient, override)
+
+ Type GetType() override;
+
+ Result<quota::UsageInfo, nsresult> InitOrigin(
+ quota::PersistenceType aPersistenceType,
+ const quota::OriginMetadata& aOriginMetadata,
+ const AtomicBool& aCanceled) override;
+
+ nsresult InitOriginWithoutTracking(
+ quota::PersistenceType aPersistenceType,
+ const quota::OriginMetadata& aOriginMetadata,
+ const AtomicBool& aCanceled) override;
+
+ Result<quota::UsageInfo, nsresult> GetUsageForOrigin(
+ quota::PersistenceType aPersistenceType,
+ const quota::OriginMetadata& aOriginMetadata,
+ const AtomicBool& aCanceled) override;
+
+ void OnOriginClearCompleted(quota::PersistenceType aPersistenceType,
+ const nsACString& aOrigin) override;
+
+ void OnRepositoryClearCompleted(
+ quota::PersistenceType aPersistenceType) override;
+
+ void ReleaseIOThreadObjects() override;
+
+ void AbortOperationsForLocks(
+ const DirectoryLockIdTable& aDirectoryLockIds) override;
+
+ void AbortOperationsForProcess(ContentParentId aContentParentId) override;
+
+ void AbortAllOperations() override;
+
+ void StartIdleMaintenance() override;
+
+ void StopIdleMaintenance() override;
+
+ private:
+ ~QuotaClient() = default;
+
+ void InitiateShutdown() override;
+ bool IsShutdownCompleted() const override;
+ nsCString GetShutdownStatus() const override;
+ void ForceKillActors() override;
+ void FinalizeShutdown() override;
+};
+
+Result<ResultConnection, QMResult> GetStorageConnection(
+ const quota::OriginMetadata& aOriginMetadata) {
+ QM_TRY_INSPECT(const nsCOMPtr<nsIFile>& databaseFile,
+ data::GetDatabaseFile(aOriginMetadata));
+
+ QM_TRY_INSPECT(
+ const auto& storageService,
+ QM_TO_RESULT_TRANSFORM(MOZ_TO_RESULT_GET_TYPED(
+ nsCOMPtr<mozIStorageService>, MOZ_SELECT_OVERLOAD(do_GetService),
+ MOZ_STORAGE_SERVICE_CONTRACTID)));
+
+ QM_TRY_UNWRAP(
+ auto connection,
+ QM_TO_RESULT_TRANSFORM(MOZ_TO_RESULT_INVOKE_MEMBER_TYPED(
+ nsCOMPtr<mozIStorageConnection>, storageService, OpenDatabase,
+ databaseFile, mozIStorageService::CONNECTION_DEFAULT)));
+
+ ResultConnection result(connection);
+
+ return result;
+}
+
+} // namespace
+
+QuotaClient::QuotaClient() { ::mozilla::ipc::AssertIsOnBackgroundThread(); }
+
+mozilla::dom::quota::Client::Type QuotaClient::GetType() {
+ return quota::Client::Type::FILESYSTEM;
+}
+
+Result<quota::UsageInfo, nsresult> QuotaClient::InitOrigin(
+ quota::PersistenceType aPersistenceType,
+ const quota::OriginMetadata& aOriginMetadata, const AtomicBool& aCanceled) {
+ quota::AssertIsOnIOThread();
+
+ {
+ QM_TRY_INSPECT(const nsCOMPtr<nsIFile>& databaseFile,
+ data::GetDatabaseFile(aOriginMetadata).mapErr(toNSResult));
+
+ bool exists = false;
+ QM_TRY(MOZ_TO_RESULT(databaseFile->Exists(&exists)));
+ // If database doesn't already exist, we do not create it
+ if (!exists) {
+ return quota::UsageInfo();
+ }
+ }
+
+ QM_TRY_INSPECT(const ResultConnection& conn,
+ GetStorageConnection(aOriginMetadata).mapErr(toNSResult));
+
+ QM_TRY(MOZ_TO_RESULT(
+ data::FileSystemDatabaseManager::RescanUsages(conn, aOriginMetadata)));
+
+ return data::FileSystemDatabaseManager::GetUsage(conn, aOriginMetadata)
+ .mapErr(toNSResult);
+}
+
+nsresult QuotaClient::InitOriginWithoutTracking(
+ quota::PersistenceType /* aPersistenceType */,
+ const quota::OriginMetadata& /* aOriginMetadata */,
+ const AtomicBool& /* aCanceled */) {
+ quota::AssertIsOnIOThread();
+
+ // This is called when a storage/permanent/${origin}/fs directory exists. Even
+ // though this shouldn't happen with a "good" profile, we shouldn't return an
+ // error here, since that would cause origin initialization to fail. We just
+ // warn and otherwise ignore that.
+ UNKNOWN_FILE_WARNING(
+ NS_LITERAL_STRING_FROM_CSTRING(FILESYSTEM_DIRECTORY_NAME));
+
+ return NS_OK;
+}
+
+Result<quota::UsageInfo, nsresult> QuotaClient::GetUsageForOrigin(
+ quota::PersistenceType aPersistenceType,
+ const quota::OriginMetadata& aOriginMetadata,
+ const AtomicBool& /* aCanceled */) {
+ quota::AssertIsOnIOThread();
+
+ MOZ_ASSERT(aPersistenceType ==
+ quota::PersistenceType::PERSISTENCE_TYPE_DEFAULT);
+
+ quota::QuotaManager* quotaManager = quota::QuotaManager::Get();
+ MOZ_ASSERT(quotaManager);
+
+ // We can't open the database at this point because the quota manager may not
+ // allow it. Use the cached value instead.
+ return quotaManager->GetUsageForClient(aPersistenceType, aOriginMetadata,
+ quota::Client::FILESYSTEM);
+}
+
+void QuotaClient::OnOriginClearCompleted(
+ quota::PersistenceType aPersistenceType, const nsACString& aOrigin) {
+ quota::AssertIsOnIOThread();
+}
+
+void QuotaClient::OnRepositoryClearCompleted(
+ quota::PersistenceType aPersistenceType) {
+ quota::AssertIsOnIOThread();
+}
+
+void QuotaClient::ReleaseIOThreadObjects() { quota::AssertIsOnIOThread(); }
+
+void QuotaClient::AbortOperationsForLocks(
+ const DirectoryLockIdTable& aDirectoryLockIds) {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ data::FileSystemDataManager::AbortOperationsForLocks(aDirectoryLockIds);
+}
+
+void QuotaClient::AbortOperationsForProcess(ContentParentId aContentParentId) {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+}
+
+void QuotaClient::AbortAllOperations() {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+}
+
+void QuotaClient::StartIdleMaintenance() {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+}
+
+void QuotaClient::StopIdleMaintenance() {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+}
+
+void QuotaClient::InitiateShutdown() {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ data::FileSystemDataManager::InitiateShutdown();
+}
+
+bool QuotaClient::IsShutdownCompleted() const {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ return data::FileSystemDataManager::IsShutdownCompleted();
+}
+
+nsCString QuotaClient::GetShutdownStatus() const {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ return "Not implemented"_ns;
+}
+
+void QuotaClient::ForceKillActors() {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ // Hopefully not needed.
+}
+
+void QuotaClient::FinalizeShutdown() {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ // Empty for now.
+}
+
+already_AddRefed<mozilla::dom::quota::Client> CreateQuotaClient() {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ RefPtr<QuotaClient> client = new fs::QuotaClient();
+ return client.forget();
+}
+
+} // namespace mozilla::dom::fs
diff --git a/dom/fs/parent/FileSystemQuotaClient.h b/dom/fs/parent/FileSystemQuotaClient.h
new file mode 100644
index 0000000000..9afc04ee7b
--- /dev/null
+++ b/dom/fs/parent/FileSystemQuotaClient.h
@@ -0,0 +1,25 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_FILESYSTEMQUOTACLIENT_H_
+#define DOM_FS_PARENT_FILESYSTEMQUOTACLIENT_H_
+
+#include "mozilla/AlreadyAddRefed.h"
+
+namespace mozilla::dom {
+
+namespace quota {
+class Client;
+} // namespace quota
+
+namespace fs {
+
+already_AddRefed<mozilla::dom::quota::Client> CreateQuotaClient();
+
+} // namespace fs
+} // namespace mozilla::dom
+
+#endif // DOM_FS_PARENT_FILESYSTEMQUOTACLIENT_H_
diff --git a/dom/fs/parent/FileSystemStreamCallbacks.cpp b/dom/fs/parent/FileSystemStreamCallbacks.cpp
new file mode 100644
index 0000000000..fbe9d5f67b
--- /dev/null
+++ b/dom/fs/parent/FileSystemStreamCallbacks.cpp
@@ -0,0 +1,38 @@
+/* -*- 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 "FileSystemStreamCallbacks.h"
+
+#include "mozilla/dom/quota/RemoteQuotaObjectParent.h"
+
+namespace mozilla::dom {
+
+FileSystemStreamCallbacks::FileSystemStreamCallbacks()
+ : mRemoteQuotaObjectParent(nullptr) {}
+
+NS_IMPL_ISUPPORTS(FileSystemStreamCallbacks, nsIInterfaceRequestor,
+ quota::RemoteQuotaObjectParentTracker)
+
+NS_IMETHODIMP
+FileSystemStreamCallbacks::GetInterface(const nsIID& aIID, void** aResult) {
+ return QueryInterface(aIID, aResult);
+}
+
+void FileSystemStreamCallbacks::RegisterRemoteQuotaObjectParent(
+ NotNull<quota::RemoteQuotaObjectParent*> aActor) {
+ MOZ_ASSERT(!mRemoteQuotaObjectParent);
+
+ mRemoteQuotaObjectParent = aActor;
+}
+
+void FileSystemStreamCallbacks::UnregisterRemoteQuotaObjectParent(
+ NotNull<quota::RemoteQuotaObjectParent*> aActor) {
+ MOZ_ASSERT(mRemoteQuotaObjectParent);
+
+ mRemoteQuotaObjectParent = nullptr;
+}
+
+} // namespace mozilla::dom
diff --git a/dom/fs/parent/FileSystemStreamCallbacks.h b/dom/fs/parent/FileSystemStreamCallbacks.h
new file mode 100644
index 0000000000..98e4713faf
--- /dev/null
+++ b/dom/fs/parent/FileSystemStreamCallbacks.h
@@ -0,0 +1,38 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_FILESYSTEMSTREAMCALLBACKS_H_
+#define DOM_FS_PARENT_FILESYSTEMSTREAMCALLBACKS_H_
+
+#include "mozilla/dom/quota/RemoteQuotaObjectParentTracker.h"
+#include "nsIInterfaceRequestor.h"
+
+namespace mozilla::dom {
+
+class FileSystemStreamCallbacks : public nsIInterfaceRequestor,
+ public quota::RemoteQuotaObjectParentTracker {
+ public:
+ FileSystemStreamCallbacks();
+
+ NS_DECL_THREADSAFE_ISUPPORTS
+
+ NS_DECL_NSIINTERFACEREQUESTOR
+
+ void RegisterRemoteQuotaObjectParent(
+ NotNull<quota::RemoteQuotaObjectParent*> aActor) override;
+
+ void UnregisterRemoteQuotaObjectParent(
+ NotNull<quota::RemoteQuotaObjectParent*> aActor) override;
+
+ protected:
+ virtual ~FileSystemStreamCallbacks() = default;
+
+ quota::RemoteQuotaObjectParent* mRemoteQuotaObjectParent;
+};
+
+} // namespace mozilla::dom
+
+#endif // DOM_FS_PARENT_FILESYSTEMSTREAMCALLBACKS_H_
diff --git a/dom/fs/parent/FileSystemWritableFileStreamParent.cpp b/dom/fs/parent/FileSystemWritableFileStreamParent.cpp
new file mode 100644
index 0000000000..a34bed96d2
--- /dev/null
+++ b/dom/fs/parent/FileSystemWritableFileStreamParent.cpp
@@ -0,0 +1,77 @@
+/* -*- 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 "FileSystemWritableFileStreamParent.h"
+
+#include "FileSystemDataManager.h"
+#include "FileSystemStreamCallbacks.h"
+#include "mozilla/dom/FileSystemLog.h"
+#include "mozilla/dom/FileSystemManagerParent.h"
+#include "mozilla/dom/quota/RemoteQuotaObjectParent.h"
+
+namespace mozilla::dom {
+
+class FileSystemWritableFileStreamParent::FileSystemWritableFileStreamCallbacks
+ : public FileSystemStreamCallbacks {
+ public:
+ void CloseRemoteQuotaObjectParent() {
+ if (mRemoteQuotaObjectParent) {
+ mRemoteQuotaObjectParent->Close();
+ }
+ }
+};
+
+FileSystemWritableFileStreamParent::FileSystemWritableFileStreamParent(
+ RefPtr<FileSystemManagerParent> aManager, const fs::EntryId& aEntryId)
+ : mManager(std::move(aManager)), mEntryId(aEntryId) {}
+
+FileSystemWritableFileStreamParent::~FileSystemWritableFileStreamParent() {
+ MOZ_ASSERT(mClosed);
+}
+
+mozilla::ipc::IPCResult FileSystemWritableFileStreamParent::RecvClose(
+ CloseResolver&& aResolver) {
+ Close();
+
+ aResolver(void_t());
+
+ return IPC_OK();
+}
+
+void FileSystemWritableFileStreamParent::ActorDestroy(ActorDestroyReason aWhy) {
+ if (mStreamCallbacks) {
+ mStreamCallbacks->CloseRemoteQuotaObjectParent();
+ mStreamCallbacks = nullptr;
+ }
+
+ if (!IsClosed()) {
+ Close();
+ }
+}
+
+nsIInterfaceRequestor*
+FileSystemWritableFileStreamParent::GetOrCreateStreamCallbacks() {
+ if (!mStreamCallbacks) {
+ if (mClosed) {
+ return nullptr;
+ }
+
+ mStreamCallbacks = MakeRefPtr<FileSystemWritableFileStreamCallbacks>();
+ }
+
+ return mStreamCallbacks.get();
+}
+
+void FileSystemWritableFileStreamParent::Close() {
+ LOG(("Closing WritableFileStream"));
+
+ mClosed.Flip();
+
+ // TODO: Change to UnlockShared after temporary files
+ mManager->DataManagerStrongRef()->UnlockExclusive(mEntryId);
+}
+
+} // namespace mozilla::dom
diff --git a/dom/fs/parent/FileSystemWritableFileStreamParent.h b/dom/fs/parent/FileSystemWritableFileStreamParent.h
new file mode 100644
index 0000000000..58437b5ae6
--- /dev/null
+++ b/dom/fs/parent/FileSystemWritableFileStreamParent.h
@@ -0,0 +1,55 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_FILESYSTEMWRITABLEFILESTREAM_H_
+#define DOM_FS_PARENT_FILESYSTEMWRITABLEFILESTREAM_H_
+
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/FlippedOnce.h"
+#include "mozilla/dom/PFileSystemWritableFileStreamParent.h"
+
+class nsIInterfaceRequestor;
+
+namespace mozilla::dom {
+
+class FileSystemManagerParent;
+
+class FileSystemWritableFileStreamParent
+ : public PFileSystemWritableFileStreamParent {
+ public:
+ FileSystemWritableFileStreamParent(RefPtr<FileSystemManagerParent> aManager,
+ const fs::EntryId& aEntryId);
+
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FileSystemWritableFileStreamParent,
+ override)
+
+ mozilla::ipc::IPCResult RecvClose(CloseResolver&& aResolver);
+
+ void ActorDestroy(ActorDestroyReason aWhy) override;
+
+ nsIInterfaceRequestor* GetOrCreateStreamCallbacks();
+
+ private:
+ class FileSystemWritableFileStreamCallbacks;
+
+ virtual ~FileSystemWritableFileStreamParent();
+
+ bool IsClosed() const { return mClosed; }
+
+ void Close();
+
+ const RefPtr<FileSystemManagerParent> mManager;
+
+ RefPtr<FileSystemWritableFileStreamCallbacks> mStreamCallbacks;
+
+ const fs::EntryId mEntryId;
+
+ FlippedOnce<false> mClosed;
+};
+
+} // namespace mozilla::dom
+
+#endif // DOM_FS_PARENT_FILESYSTEMWRITABLEFILESTREAM_H_
diff --git a/dom/fs/parent/ResultConnection.h b/dom/fs/parent/ResultConnection.h
new file mode 100644
index 0000000000..3606a55a6b
--- /dev/null
+++ b/dom/fs/parent/ResultConnection.h
@@ -0,0 +1,19 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_RESULTCONNECTION_H_
+#define DOM_FS_PARENT_RESULTCONNECTION_H_
+
+#include "mozIStorageConnection.h"
+#include "nsCOMPtr.h"
+
+namespace mozilla::dom::fs {
+
+using ResultConnection = nsCOMPtr<mozIStorageConnection>;
+
+} // namespace mozilla::dom::fs
+
+#endif // DOM_FS_PARENT_RESULTCONNECTION_H_
diff --git a/dom/fs/parent/ResultStatement.cpp b/dom/fs/parent/ResultStatement.cpp
new file mode 100644
index 0000000000..0b0e2cf4a8
--- /dev/null
+++ b/dom/fs/parent/ResultStatement.cpp
@@ -0,0 +1,23 @@
+/* -*- 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 "ResultStatement.h"
+
+#include "mozIStorageConnection.h"
+
+namespace mozilla::dom::fs {
+
+Result<ResultStatement, QMResult> ResultStatement::Create(
+ const ResultConnection& aConnection, const nsACString& aSQLStatement) {
+ nsCOMPtr<mozIStorageStatement> stmt;
+
+ QM_TRY(QM_TO_RESULT(
+ aConnection->CreateStatement(aSQLStatement, getter_AddRefs(stmt))));
+
+ return ResultStatement(stmt);
+};
+
+} // namespace mozilla::dom::fs
diff --git a/dom/fs/parent/ResultStatement.h b/dom/fs/parent/ResultStatement.h
new file mode 100644
index 0000000000..3c492736e9
--- /dev/null
+++ b/dom/fs/parent/ResultStatement.h
@@ -0,0 +1,160 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_RESULTSTATEMENT_H_
+#define DOM_FS_PARENT_RESULTSTATEMENT_H_
+
+#include "mozIStorageStatement.h"
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/quota/QuotaCommon.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+#include "nsCOMPtr.h"
+#include "nsString.h"
+
+class mozIStorageConnection;
+
+namespace mozilla::dom::fs {
+
+using Column = uint32_t;
+
+using ResultConnection = nsCOMPtr<mozIStorageConnection>;
+
+/**
+ * @brief ResultStatement
+ * - provides error monad Result<T, E> compatible interface to the lower level
+ * error code-based statement implementation in order to enable remote
+ * debugging with error stack traces
+ * - converts between OPFS internal data types and the generic data types of
+ * the lower level implementation
+ * - provides a customization point for requests aimed at the lower level
+ * implementation allowing for example to remap errors or implement mocks
+ */
+class ResultStatement {
+ public:
+ using underlying_t = nsCOMPtr<mozIStorageStatement>;
+
+ explicit ResultStatement(underlying_t aStmt) : mStmt(std::move(aStmt)) {}
+
+ ResultStatement(const ResultStatement& aOther)
+ : ResultStatement(aOther.mStmt) {}
+
+ ResultStatement(ResultStatement&& aOther) noexcept
+ : ResultStatement(std::move(aOther.mStmt)) {}
+
+ ResultStatement& operator=(const ResultStatement& aOther) = default;
+
+ ResultStatement& operator=(ResultStatement&& aOther) noexcept {
+ mStmt = std::move(aOther.mStmt);
+ return *this;
+ }
+
+ static Result<ResultStatement, QMResult> Create(
+ const ResultConnection& aConnection, const nsACString& aSQLStatement);
+
+ // XXX Consider moving all these "inline" methods into a separate file
+ // called ResultStatementInlines.h. ResultStatement.h wouldn't have to then
+ // include ResultExtensions.h, QuotaCommon.h and mozIStorageStatement.h
+ // which are quite large and should be preferable only included from cpp
+ // files or special headers like ResultStatementInlines.h. So in the end,
+ // other headers would include ResultStatement.h only and other cpp files
+ // would include ResultStatementInlines.h. See also IndedexDababase.h and
+ // IndexedDatabaseInlines.h to see how it's done.
+
+ inline nsresult BindEntryIdByName(const nsACString& aField,
+ const EntryId& aValue) {
+ return mStmt->BindUTF8StringAsBlobByName(aField, aValue);
+ }
+
+ inline nsresult BindContentTypeByName(const nsACString& aField,
+ const ContentType& aValue) {
+ if (0u == aValue.Length()) { // Otherwise empty string becomes null
+ return mStmt->BindUTF8StringByName(aField, aValue);
+ }
+
+ return mStmt->BindUTF8StringAsBlobByName(aField, aValue);
+ }
+
+ inline nsresult BindNameByName(const nsACString& aField, const Name& aValue) {
+ return mStmt->BindStringAsBlobByName(aField, aValue);
+ }
+
+ inline nsresult BindPageNumberByName(const nsACString& aField,
+ PageNumber aValue) {
+ return mStmt->BindInt32ByName(aField, aValue);
+ }
+
+ inline nsresult BindUsageByName(const nsACString& aField, Usage aValue) {
+ return mStmt->BindInt64ByName(aField, aValue);
+ }
+
+ inline nsresult BindBooleanByName(const nsACString& aField, bool aValue) {
+ return mStmt->BindInt32ByName(aField, aValue ? 1 : 0);
+ }
+
+ inline Result<bool, QMResult> GetBooleanByColumn(Column aColumn) {
+ int32_t value = 0;
+ QM_TRY(QM_TO_RESULT(mStmt->GetInt32(aColumn, &value)));
+
+ return 0 != value;
+ }
+
+ inline Result<ContentType, QMResult> GetContentTypeByColumn(Column aColumn) {
+ ContentType value;
+ QM_TRY(QM_TO_RESULT(mStmt->GetUTF8String(aColumn, value)));
+
+ return value;
+ }
+
+ inline Result<EntryId, QMResult> GetEntryIdByColumn(Column aColumn) {
+ EntryId value;
+ QM_TRY(QM_TO_RESULT(mStmt->GetBlobAsUTF8String(aColumn, value)));
+
+ return value;
+ }
+
+ inline Result<Name, QMResult> GetNameByColumn(Column aColumn) {
+ Name value;
+ QM_TRY(QM_TO_RESULT(mStmt->GetBlobAsString(aColumn, value)));
+
+ return value;
+ }
+
+ inline Result<Usage, QMResult> GetUsageByColumn(Column aColumn) {
+ Usage value = 0;
+ QM_TRY(QM_TO_RESULT(mStmt->GetInt64(aColumn, &value)));
+
+ return value;
+ }
+
+ inline bool IsNullByColumn(Column aColumn) const {
+ bool value = mStmt->IsNull(aColumn);
+
+ return value;
+ }
+
+ inline nsresult Execute() { return mStmt->Execute(); }
+
+ inline Result<bool, QMResult> ExecuteStep() {
+ bool hasEntries = false;
+ QM_TRY(QM_TO_RESULT(mStmt->ExecuteStep(&hasEntries)));
+
+ return hasEntries;
+ }
+
+ inline Result<bool, QMResult> YesOrNoQuery() {
+ bool hasEntries = false;
+ QM_TRY(QM_TO_RESULT(mStmt->ExecuteStep(&hasEntries)));
+ MOZ_ALWAYS_TRUE(hasEntries);
+ return GetBooleanByColumn(0u);
+ }
+
+ private:
+ underlying_t mStmt;
+};
+
+} // namespace mozilla::dom::fs
+
+#endif // DOM_FS_PARENT_RESULTSTATEMENT_H_
diff --git a/dom/fs/parent/datamodel/FileSystemDataManager.cpp b/dom/fs/parent/datamodel/FileSystemDataManager.cpp
new file mode 100644
index 0000000000..d86140c317
--- /dev/null
+++ b/dom/fs/parent/datamodel/FileSystemDataManager.cpp
@@ -0,0 +1,573 @@
+/* -*- 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 "FileSystemDataManager.h"
+
+#include "FileSystemDatabaseManager.h"
+#include "FileSystemDatabaseManagerVersion001.h"
+#include "FileSystemFileManager.h"
+#include "FileSystemHashSource.h"
+#include "ResultStatement.h"
+#include "SchemaVersion001.h"
+#include "fs/FileSystemConstants.h"
+#include "mozIStorageService.h"
+#include "mozStorageCID.h"
+#include "mozilla/Result.h"
+#include "mozilla/StaticPtr.h"
+#include "mozilla/dom/FileSystemLog.h"
+#include "mozilla/dom/FileSystemManagerParent.h"
+#include "mozilla/dom/quota/ClientImpl.h"
+#include "mozilla/dom/quota/DirectoryLock.h"
+#include "mozilla/dom/quota/QuotaCommon.h"
+#include "mozilla/dom/quota/QuotaManager.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+#include "mozilla/dom/quota/UsageInfo.h"
+#include "mozilla/ipc/BackgroundParent.h"
+#include "nsBaseHashtable.h"
+#include "nsCOMPtr.h"
+#include "nsHashKeys.h"
+#include "nsIFile.h"
+#include "nsIFileURL.h"
+#include "nsNetCID.h"
+#include "nsServiceManagerUtils.h"
+#include "nsString.h"
+#include "nsThreadUtils.h"
+
+namespace mozilla::dom::fs::data {
+
+namespace {
+
+// nsCStringHashKey with disabled memmove
+class nsCStringHashKeyDM : public nsCStringHashKey {
+ public:
+ explicit nsCStringHashKeyDM(const nsCStringHashKey::KeyTypePointer aKey)
+ : nsCStringHashKey(aKey) {}
+ enum { ALLOW_MEMMOVE = false };
+};
+
+// When CheckedUnsafePtr's checking is enabled, it's necessary to ensure that
+// the hashtable uses the copy constructor instead of memmove for moving entries
+// since memmove will break CheckedUnsafePtr in a memory-corrupting way.
+using FileSystemDataManagerHashKey =
+ std::conditional<DiagnosticAssertEnabled::value, nsCStringHashKeyDM,
+ nsCStringHashKey>::type;
+
+// Raw (but checked when the diagnostic assert is enabled) references as we
+// don't want to keep FileSystemDataManager objects alive forever. When a
+// FileSystemDataManager is destroyed it calls RemoveFileSystemDataManager
+// to clear itself.
+using FileSystemDataManagerHashtable =
+ nsBaseHashtable<FileSystemDataManagerHashKey,
+ NotNull<CheckedUnsafePtr<FileSystemDataManager>>,
+ MovingNotNull<CheckedUnsafePtr<FileSystemDataManager>>>;
+
+// This hashtable isn't protected by any mutex but it is only ever touched on
+// the PBackground thread.
+StaticAutoPtr<FileSystemDataManagerHashtable> gDataManagers;
+
+RefPtr<FileSystemDataManager> GetFileSystemDataManager(const Origin& aOrigin) {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ if (gDataManagers) {
+ auto maybeDataManager = gDataManagers->MaybeGet(aOrigin);
+ if (maybeDataManager) {
+ RefPtr<FileSystemDataManager> result(
+ std::move(*maybeDataManager).unwrapBasePtr());
+ return result;
+ }
+ }
+
+ return nullptr;
+}
+
+void AddFileSystemDataManager(
+ const Origin& aOrigin, const RefPtr<FileSystemDataManager>& aDataManager) {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+ MOZ_ASSERT(!quota::QuotaManager::IsShuttingDown());
+
+ if (!gDataManagers) {
+ gDataManagers = new FileSystemDataManagerHashtable();
+ }
+
+ MOZ_ASSERT(!gDataManagers->Contains(aOrigin));
+ gDataManagers->InsertOrUpdate(aOrigin,
+ WrapMovingNotNullUnchecked(aDataManager));
+}
+
+void RemoveFileSystemDataManager(const Origin& aOrigin) {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ MOZ_ASSERT(gDataManagers);
+ const DebugOnly<bool> removed = gDataManagers->Remove(aOrigin);
+ MOZ_ASSERT(removed);
+
+ if (!gDataManagers->Count()) {
+ gDataManagers = nullptr;
+ }
+}
+
+Result<ResultConnection, QMResult> GetStorageConnection(
+ const quota::OriginMetadata& aOriginMetadata,
+ const int64_t aDirectoryLockId) {
+ MOZ_ASSERT(aDirectoryLockId >= 0);
+
+ // Ensure that storage is initialized and file system folder exists!
+ QM_TRY_INSPECT(const auto& dbFileUrl,
+ GetDatabaseFileURL(aOriginMetadata, aDirectoryLockId));
+
+ QM_TRY_INSPECT(
+ const auto& storageService,
+ QM_TO_RESULT_TRANSFORM(MOZ_TO_RESULT_GET_TYPED(
+ nsCOMPtr<mozIStorageService>, MOZ_SELECT_OVERLOAD(do_GetService),
+ MOZ_STORAGE_SERVICE_CONTRACTID)));
+
+ QM_TRY_UNWRAP(auto connection,
+ QM_TO_RESULT_TRANSFORM(MOZ_TO_RESULT_INVOKE_MEMBER_TYPED(
+ nsCOMPtr<mozIStorageConnection>, storageService,
+ OpenDatabaseWithFileURL, dbFileUrl, ""_ns,
+ mozIStorageService::CONNECTION_DEFAULT)));
+
+ ResultConnection result(connection);
+
+ return result;
+}
+
+} // namespace
+
+Result<EntryId, QMResult> GetRootHandle(const Origin& origin) {
+ MOZ_ASSERT(!origin.IsEmpty());
+
+ return FileSystemHashSource::GenerateHash(origin, kRootString);
+}
+
+Result<EntryId, QMResult> GetEntryHandle(
+ const FileSystemChildMetadata& aHandle) {
+ MOZ_ASSERT(!aHandle.parentId().IsEmpty());
+
+ return FileSystemHashSource::GenerateHash(aHandle.parentId(),
+ aHandle.childName());
+}
+
+FileSystemDataManager::FileSystemDataManager(
+ const quota::OriginMetadata& aOriginMetadata,
+ RefPtr<quota::QuotaManager> aQuotaManager,
+ MovingNotNull<nsCOMPtr<nsIEventTarget>> aIOTarget,
+ MovingNotNull<RefPtr<TaskQueue>> aIOTaskQueue)
+ : mOriginMetadata(aOriginMetadata),
+ mQuotaManager(std::move(aQuotaManager)),
+ mBackgroundTarget(WrapNotNull(GetCurrentSerialEventTarget())),
+ mIOTarget(std::move(aIOTarget)),
+ mIOTaskQueue(std::move(aIOTaskQueue)),
+ mRegCount(0),
+ mState(State::Initial) {}
+
+FileSystemDataManager::~FileSystemDataManager() {
+ NS_ASSERT_OWNINGTHREAD(FileSystemDataManager);
+ MOZ_ASSERT(mState == State::Closed);
+ MOZ_ASSERT(!mDatabaseManager);
+}
+
+RefPtr<FileSystemDataManager::CreatePromise>
+FileSystemDataManager::GetOrCreateFileSystemDataManager(
+ const quota::OriginMetadata& aOriginMetadata) {
+ if (quota::QuotaManager::IsShuttingDown()) {
+ return CreatePromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+ }
+
+ if (RefPtr<FileSystemDataManager> dataManager =
+ GetFileSystemDataManager(aOriginMetadata.mOrigin)) {
+ if (dataManager->IsOpening()) {
+ // We have to wait for the open to be finished before resolving the
+ // promise. The manager can't close itself in the meantime because we
+ // add a new registration in the lambda capture list.
+ return dataManager->OnOpen()->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [dataManager = Registered<FileSystemDataManager>(dataManager)](
+ const BoolPromise::ResolveOrRejectValue& aValue) {
+ if (aValue.IsReject()) {
+ return CreatePromise::CreateAndReject(aValue.RejectValue(),
+ __func__);
+ }
+ return CreatePromise::CreateAndResolve(dataManager, __func__);
+ });
+ }
+
+ if (dataManager->IsClosing()) {
+ // First, we need to wait for the close to be finished. After that the
+ // manager is closed and it can't be opened again. The only option is
+ // to create a new manager and open it. However, all this stuff is
+ // asynchronous, so it can happen that something else called
+ // `GetOrCreateFileSystemManager` in the meantime. For that reason, we
+ // shouldn't try to create a new manager and open it here, a "recursive"
+ // call to `GetOrCreateFileSystemManager` will handle any new situation.
+ return dataManager->OnClose()->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [aOriginMetadata](const BoolPromise::ResolveOrRejectValue&) {
+ return GetOrCreateFileSystemDataManager(aOriginMetadata);
+ });
+ }
+
+ return CreatePromise::CreateAndResolve(
+ Registered<FileSystemDataManager>(std::move(dataManager)), __func__);
+ }
+
+ RefPtr<quota::QuotaManager> quotaManager = quota::QuotaManager::Get();
+ MOZ_ASSERT(quotaManager);
+
+ QM_TRY_UNWRAP(auto streamTransportService,
+ MOZ_TO_RESULT_GET_TYPED(nsCOMPtr<nsIEventTarget>,
+ MOZ_SELECT_OVERLOAD(do_GetService),
+ NS_STREAMTRANSPORTSERVICE_CONTRACTID),
+ CreatePromise::CreateAndReject(NS_ERROR_FAILURE, __func__));
+
+ nsCString taskQueueName("OPFS "_ns + aOriginMetadata.mOrigin);
+
+ RefPtr<TaskQueue> ioTaskQueue =
+ TaskQueue::Create(do_AddRef(streamTransportService), taskQueueName.get());
+
+ auto dataManager = MakeRefPtr<FileSystemDataManager>(
+ aOriginMetadata, std::move(quotaManager),
+ WrapMovingNotNull(streamTransportService),
+ WrapMovingNotNull(ioTaskQueue));
+
+ AddFileSystemDataManager(aOriginMetadata.mOrigin, dataManager);
+
+ return dataManager->BeginOpen()->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [dataManager = Registered<FileSystemDataManager>(dataManager)](
+ const BoolPromise::ResolveOrRejectValue& aValue) {
+ if (aValue.IsReject()) {
+ return CreatePromise::CreateAndReject(aValue.RejectValue(), __func__);
+ }
+
+ return CreatePromise::CreateAndResolve(dataManager, __func__);
+ });
+}
+
+// static
+void FileSystemDataManager::AbortOperationsForLocks(
+ const quota::Client::DirectoryLockIdTable& aDirectoryLockIds) {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ // XXX Share the iteration code with `InitiateShutdown`, for example by
+ // creating a helper function which would take a predicate function.
+
+ if (!gDataManagers) {
+ return;
+ }
+
+ for (const auto& dataManager : gDataManagers->Values()) {
+ // Check if the Manager holds an acquired DirectoryLock. Origin clearing
+ // can't be blocked by this Manager if there is no acquired DirectoryLock.
+ // If there is an acquired DirectoryLock, check if the table contains the
+ // lock for the Manager.
+ if (quota::Client::IsLockForObjectAcquiredAndContainedInLockTable(
+ *dataManager, aDirectoryLockIds)) {
+ dataManager->RequestAllowToClose();
+ }
+ }
+}
+
+// static
+void FileSystemDataManager::InitiateShutdown() {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ if (!gDataManagers) {
+ return;
+ }
+
+ for (const auto& dataManager : gDataManagers->Values()) {
+ dataManager->RequestAllowToClose();
+ }
+}
+
+// static
+bool FileSystemDataManager::IsShutdownCompleted() {
+ ::mozilla::ipc::AssertIsOnBackgroundThread();
+
+ return !gDataManagers;
+}
+
+void FileSystemDataManager::AssertIsOnIOTarget() const {
+ DebugOnly<bool> current = false;
+ MOZ_ASSERT(NS_SUCCEEDED(mIOTarget->IsOnCurrentThread(&current)));
+ MOZ_ASSERT(current);
+}
+
+void FileSystemDataManager::Register() { mRegCount++; }
+
+void FileSystemDataManager::Unregister() {
+ MOZ_ASSERT(mRegCount > 0);
+
+ mRegCount--;
+
+ if (IsInactive()) {
+ BeginClose();
+ }
+}
+
+void FileSystemDataManager::RegisterActor(
+ NotNull<FileSystemManagerParent*> aActor) {
+ MOZ_ASSERT(!mBackgroundThreadAccessible.Access()->mActors.Contains(aActor));
+
+ mBackgroundThreadAccessible.Access()->mActors.Insert(aActor);
+}
+
+void FileSystemDataManager::UnregisterActor(
+ NotNull<FileSystemManagerParent*> aActor) {
+ MOZ_ASSERT(mBackgroundThreadAccessible.Access()->mActors.Contains(aActor));
+
+ mBackgroundThreadAccessible.Access()->mActors.Remove(aActor);
+
+ if (IsInactive()) {
+ BeginClose();
+ }
+}
+
+void FileSystemDataManager::RegisterAccessHandle(
+ NotNull<FileSystemAccessHandle*> aAccessHandle) {
+ MOZ_ASSERT(!mBackgroundThreadAccessible.Access()->mAccessHandles.Contains(
+ aAccessHandle));
+
+ mBackgroundThreadAccessible.Access()->mAccessHandles.Insert(aAccessHandle);
+}
+
+void FileSystemDataManager::UnregisterAccessHandle(
+ NotNull<FileSystemAccessHandle*> aAccessHandle) {
+ MOZ_ASSERT(mBackgroundThreadAccessible.Access()->mAccessHandles.Contains(
+ aAccessHandle));
+
+ mBackgroundThreadAccessible.Access()->mAccessHandles.Remove(aAccessHandle);
+
+ if (IsInactive()) {
+ BeginClose();
+ }
+}
+
+RefPtr<BoolPromise> FileSystemDataManager::OnOpen() {
+ MOZ_ASSERT(mState == State::Opening);
+
+ return mOpenPromiseHolder.Ensure(__func__);
+}
+
+RefPtr<BoolPromise> FileSystemDataManager::OnClose() {
+ MOZ_ASSERT(mState == State::Closing);
+
+ return mClosePromiseHolder.Ensure(__func__);
+}
+
+bool FileSystemDataManager::IsLocked(const EntryId& aEntryId) const {
+ return mExclusiveLocks.Contains(aEntryId) || mSharedLocks.Contains(aEntryId);
+}
+
+nsresult FileSystemDataManager::LockExclusive(const EntryId& aEntryId) {
+ if (IsLocked(aEntryId)) {
+ return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
+ }
+
+ // If the file has been removed, we should get a file not found error.
+ // Otherwise, if usage tracking cannot be started because file size is not
+ // known and attempts to read it are failing, lock is denied to freeze the
+ // quota usage until the (external) blocker is gone or the file is removed.
+ QM_TRY(MOZ_TO_RESULT(mDatabaseManager->BeginUsageTracking(aEntryId)));
+
+ LOG_VERBOSE(("ExclusiveLock"));
+ mExclusiveLocks.Insert(aEntryId);
+
+ return NS_OK;
+}
+
+void FileSystemDataManager::UnlockExclusive(const EntryId& aEntryId) {
+ MOZ_ASSERT(mExclusiveLocks.Contains(aEntryId));
+
+ LOG_VERBOSE(("ExclusiveUnlock"));
+ mExclusiveLocks.Remove(aEntryId);
+
+ // On error, usage tracking remains on to prevent writes until usage is
+ // updated successfully.
+ QM_TRY(MOZ_TO_RESULT(mDatabaseManager->UpdateUsage(aEntryId)), QM_VOID);
+ QM_TRY(MOZ_TO_RESULT(mDatabaseManager->EndUsageTracking(aEntryId)), QM_VOID);
+}
+
+nsresult FileSystemDataManager::LockShared(const EntryId& aEntryId) {
+ if (mExclusiveLocks.Contains(aEntryId)) {
+ return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
+ }
+
+ auto& count = mSharedLocks.LookupOrInsert(aEntryId);
+ if (!(1u + CheckedUint32(count)).isValid()) { // don't make the count invalid
+ return NS_ERROR_UNEXPECTED;
+ }
+
+ ++count;
+ LOG_VERBOSE(("SharedLock %u", count));
+
+ return NS_OK;
+}
+
+void FileSystemDataManager::UnlockShared(const EntryId& aEntryId) {
+ MOZ_ASSERT(!mExclusiveLocks.Contains(aEntryId));
+ MOZ_ASSERT(mSharedLocks.Contains(aEntryId));
+
+ auto entry = mSharedLocks.Lookup(aEntryId);
+ MOZ_ASSERT(entry);
+
+ MOZ_ASSERT(entry.Data() > 0);
+ --entry.Data();
+
+ LOG_VERBOSE(("SharedUnlock %u", *entry));
+
+ if (0u == entry.Data()) {
+ entry.Remove();
+ }
+}
+
+bool FileSystemDataManager::IsInactive() const {
+ auto data = mBackgroundThreadAccessible.Access();
+ return !mRegCount && !data->mActors.Count() && !data->mAccessHandles.Count();
+}
+
+void FileSystemDataManager::RequestAllowToClose() {
+ for (const auto& actor : mBackgroundThreadAccessible.Access()->mActors) {
+ actor->RequestAllowToClose();
+ }
+}
+
+RefPtr<BoolPromise> FileSystemDataManager::BeginOpen() {
+ MOZ_ASSERT(mQuotaManager);
+ MOZ_ASSERT(mState == State::Initial);
+
+ mState = State::Opening;
+
+ RefPtr<quota::ClientDirectoryLock> directoryLock =
+ mQuotaManager->CreateDirectoryLock(
+ quota::PERSISTENCE_TYPE_DEFAULT, mOriginMetadata,
+ mozilla::dom::quota::Client::FILESYSTEM,
+ /* aExclusive */ false);
+
+ directoryLock->Acquire()
+ ->Then(GetCurrentSerialEventTarget(), __func__,
+ [self = RefPtr<FileSystemDataManager>(this),
+ directoryLock = directoryLock](
+ const BoolPromise::ResolveOrRejectValue& value) mutable {
+ if (value.IsReject()) {
+ return BoolPromise::CreateAndReject(value.RejectValue(),
+ __func__);
+ }
+
+ self->mDirectoryLock = std::move(directoryLock);
+
+ return BoolPromise::CreateAndResolve(true, __func__);
+ })
+ ->Then(mQuotaManager->IOThread(), __func__,
+ [self = RefPtr<FileSystemDataManager>(this)](
+ const BoolPromise::ResolveOrRejectValue& value) {
+ if (value.IsReject()) {
+ return BoolPromise::CreateAndReject(value.RejectValue(),
+ __func__);
+ }
+
+ QM_TRY(MOZ_TO_RESULT(
+ EnsureFileSystemDirectory(self->mOriginMetadata)),
+ CreateAndRejectBoolPromise);
+
+ return BoolPromise::CreateAndResolve(true, __func__);
+ })
+ ->Then(MutableIOTaskQueuePtr(), __func__,
+ [self = RefPtr<FileSystemDataManager>(this)](
+ const BoolPromise::ResolveOrRejectValue& value) {
+ if (value.IsReject()) {
+ return BoolPromise::CreateAndReject(value.RejectValue(),
+ __func__);
+ }
+
+ QM_TRY_UNWRAP(
+ auto connection,
+ fs::data::GetStorageConnection(self->mOriginMetadata,
+ self->mDirectoryLock->Id()),
+ CreateAndRejectBoolPromiseFromQMResult);
+
+ QM_TRY_UNWRAP(DatabaseVersion version,
+ SchemaVersion001::InitializeConnection(
+ connection, self->mOriginMetadata.mOrigin),
+ CreateAndRejectBoolPromiseFromQMResult);
+
+ if (1 == version) {
+ QM_TRY_UNWRAP(
+ FileSystemFileManager fmRes,
+ FileSystemFileManager::CreateFileSystemFileManager(
+ self->mOriginMetadata),
+ CreateAndRejectBoolPromiseFromQMResult);
+
+ QM_TRY_UNWRAP(
+ EntryId rootId,
+ fs::data::GetRootHandle(self->mOriginMetadata.mOrigin),
+ CreateAndRejectBoolPromiseFromQMResult);
+
+ self->mDatabaseManager =
+ MakeUnique<FileSystemDatabaseManagerVersion001>(
+ self, std::move(connection),
+ MakeUnique<FileSystemFileManager>(std::move(fmRes)),
+ rootId);
+ }
+
+ return BoolPromise::CreateAndResolve(true, __func__);
+ })
+ ->Then(GetCurrentSerialEventTarget(), __func__,
+ [self = RefPtr<FileSystemDataManager>(this)](
+ const BoolPromise::ResolveOrRejectValue& value) {
+ if (value.IsReject()) {
+ self->mState = State::Initial;
+
+ self->mOpenPromiseHolder.RejectIfExists(value.RejectValue(),
+ __func__);
+
+ } else {
+ self->mState = State::Open;
+
+ self->mOpenPromiseHolder.ResolveIfExists(true, __func__);
+ }
+ });
+
+ return OnOpen();
+}
+
+RefPtr<BoolPromise> FileSystemDataManager::BeginClose() {
+ MOZ_ASSERT(mState != State::Closing && mState != State::Closed);
+ MOZ_ASSERT(IsInactive());
+
+ mState = State::Closing;
+
+ InvokeAsync(MutableIOTaskQueuePtr(), __func__,
+ [self = RefPtr<FileSystemDataManager>(this)]() {
+ if (self->mDatabaseManager) {
+ self->mDatabaseManager->Close();
+ self->mDatabaseManager = nullptr;
+ }
+
+ return BoolPromise::CreateAndResolve(true, __func__);
+ })
+ ->Then(MutableBackgroundTargetPtr(), __func__,
+ [self = RefPtr<FileSystemDataManager>(this)](
+ const BoolPromise::ResolveOrRejectValue&) {
+ return self->mIOTaskQueue->BeginShutdown();
+ })
+ ->Then(MutableBackgroundTargetPtr(), __func__,
+ [self = RefPtr<FileSystemDataManager>(this)](
+ const ShutdownPromise::ResolveOrRejectValue&) {
+ self->mDirectoryLock = nullptr;
+
+ RemoveFileSystemDataManager(self->mOriginMetadata.mOrigin);
+
+ self->mState = State::Closed;
+
+ self->mClosePromiseHolder.ResolveIfExists(true, __func__);
+ });
+
+ return OnClose();
+}
+
+} // namespace mozilla::dom::fs::data
diff --git a/dom/fs/parent/datamodel/FileSystemDataManager.h b/dom/fs/parent/datamodel/FileSystemDataManager.h
new file mode 100644
index 0000000000..e23e4dd95b
--- /dev/null
+++ b/dom/fs/parent/datamodel/FileSystemDataManager.h
@@ -0,0 +1,174 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_DATAMODEL_FILESYSTEMDATAMANAGER_H_
+#define DOM_FS_PARENT_DATAMODEL_FILESYSTEMDATAMANAGER_H_
+
+#include "ResultConnection.h"
+#include "mozilla/NotNull.h"
+#include "mozilla/TaskQueue.h"
+#include "mozilla/ThreadBound.h"
+#include "mozilla/dom/FileSystemHelpers.h"
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/quota/CheckedUnsafePtr.h"
+#include "mozilla/dom/quota/CommonMetadata.h"
+#include "mozilla/dom/quota/ForwardDecls.h"
+#include "nsCOMPtr.h"
+#include "nsISupportsUtils.h"
+#include "nsString.h"
+#include "nsTHashSet.h"
+
+namespace mozilla {
+
+template <typename V, typename E>
+class Result;
+
+namespace dom {
+
+class FileSystemAccessHandle;
+class FileSystemManagerParent;
+
+namespace fs {
+class FileSystemChildMetadata;
+} // namespace fs
+
+namespace quota {
+class DirectoryLock;
+class QuotaManager;
+} // namespace quota
+
+namespace fs::data {
+
+class FileSystemDatabaseManager;
+
+Result<EntryId, QMResult> GetRootHandle(const Origin& origin);
+
+Result<EntryId, QMResult> GetEntryHandle(
+ const FileSystemChildMetadata& aHandle);
+
+class FileSystemDataManager
+ : public SupportsCheckedUnsafePtr<CheckIf<DiagnosticAssertEnabled>> {
+ public:
+ enum struct State : uint8_t { Initial = 0, Opening, Open, Closing, Closed };
+
+ FileSystemDataManager(const quota::OriginMetadata& aOriginMetadata,
+ RefPtr<quota::QuotaManager> aQuotaManager,
+ MovingNotNull<nsCOMPtr<nsIEventTarget>> aIOTarget,
+ MovingNotNull<RefPtr<TaskQueue>> aIOTaskQueue);
+
+ // IsExclusive is true because we want to allow the move operations. There's
+ // always just one consumer anyway.
+ using CreatePromise = MozPromise<Registered<FileSystemDataManager>, nsresult,
+ /* IsExclusive */ true>;
+ static RefPtr<CreatePromise> GetOrCreateFileSystemDataManager(
+ const quota::OriginMetadata& aOriginMetadata);
+
+ static void AbortOperationsForLocks(
+ const quota::Client::DirectoryLockIdTable& aDirectoryLockIds);
+
+ static void InitiateShutdown();
+
+ static bool IsShutdownCompleted();
+
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FileSystemDataManager)
+
+ void AssertIsOnIOTarget() const;
+
+ const quota::OriginMetadata& OriginMetadataRef() const {
+ return mOriginMetadata;
+ }
+
+ nsISerialEventTarget* MutableBackgroundTargetPtr() const {
+ return mBackgroundTarget.get();
+ }
+
+ nsIEventTarget* MutableIOTargetPtr() const { return mIOTarget.get(); }
+
+ nsISerialEventTarget* MutableIOTaskQueuePtr() const {
+ return mIOTaskQueue.get();
+ }
+
+ Maybe<quota::DirectoryLock&> MaybeDirectoryLockRef() const {
+ return ToMaybeRef(mDirectoryLock.get());
+ }
+
+ FileSystemDatabaseManager* MutableDatabaseManagerPtr() const {
+ MOZ_ASSERT(mDatabaseManager);
+
+ return mDatabaseManager.get();
+ }
+
+ void Register();
+
+ void Unregister();
+
+ void RegisterActor(NotNull<FileSystemManagerParent*> aActor);
+
+ void UnregisterActor(NotNull<FileSystemManagerParent*> aActor);
+
+ void RegisterAccessHandle(NotNull<FileSystemAccessHandle*> aAccessHandle);
+
+ void UnregisterAccessHandle(NotNull<FileSystemAccessHandle*> aAccessHandle);
+
+ bool IsOpen() const { return mState == State::Open; }
+
+ RefPtr<BoolPromise> OnOpen();
+
+ RefPtr<BoolPromise> OnClose();
+
+ bool IsLocked(const EntryId& aEntryId) const;
+
+ nsresult LockExclusive(const EntryId& aEntryId);
+
+ void UnlockExclusive(const EntryId& aEntryId);
+
+ nsresult LockShared(const EntryId& aEntryId);
+
+ void UnlockShared(const EntryId& aEntryId);
+
+ protected:
+ virtual ~FileSystemDataManager();
+
+ bool IsInactive() const;
+
+ bool IsOpening() const { return mState == State::Opening; }
+
+ bool IsClosing() const { return mState == State::Closing; }
+
+ void RequestAllowToClose();
+
+ RefPtr<BoolPromise> BeginOpen();
+
+ RefPtr<BoolPromise> BeginClose();
+
+ // Things touched on background thread only.
+ struct BackgroundThreadAccessible {
+ nsTHashSet<FileSystemManagerParent*> mActors;
+ nsTHashSet<FileSystemAccessHandle*> mAccessHandles;
+ };
+ ThreadBound<BackgroundThreadAccessible> mBackgroundThreadAccessible;
+
+ const quota::OriginMetadata mOriginMetadata;
+ nsTHashSet<EntryId> mExclusiveLocks;
+ nsTHashMap<EntryId, uint32_t> mSharedLocks;
+ NS_DECL_OWNINGEVENTTARGET
+ const RefPtr<quota::QuotaManager> mQuotaManager;
+ const NotNull<nsCOMPtr<nsISerialEventTarget>> mBackgroundTarget;
+ const NotNull<nsCOMPtr<nsIEventTarget>> mIOTarget;
+ const NotNull<RefPtr<TaskQueue>> mIOTaskQueue;
+ RefPtr<quota::DirectoryLock> mDirectoryLock;
+ UniquePtr<FileSystemDatabaseManager> mDatabaseManager;
+ MozPromiseHolder<BoolPromise> mOpenPromiseHolder;
+ MozPromiseHolder<BoolPromise> mClosePromiseHolder;
+ uint32_t mRegCount;
+ State mState;
+};
+
+} // namespace fs::data
+} // namespace dom
+} // namespace mozilla
+
+#endif // DOM_FS_PARENT_DATAMODEL_FILESYSTEMDATAMANAGER_H_
diff --git a/dom/fs/parent/datamodel/FileSystemDatabaseManager.cpp b/dom/fs/parent/datamodel/FileSystemDatabaseManager.cpp
new file mode 100644
index 0000000000..516158c37b
--- /dev/null
+++ b/dom/fs/parent/datamodel/FileSystemDatabaseManager.cpp
@@ -0,0 +1,83 @@
+/* -*- 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 "FileSystemDatabaseManager.h"
+
+#include "FileSystemDatabaseManagerVersion001.h"
+#include "FileSystemFileManager.h"
+#include "ResultConnection.h"
+#include "ResultStatement.h"
+#include "SchemaVersion001.h"
+#include "mozilla/dom/quota/QuotaCommon.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+#include "nsCOMPtr.h"
+#include "nsIFile.h"
+
+namespace mozilla::dom::fs::data {
+
+/* static */
+nsresult FileSystemDatabaseManager::RescanUsages(
+ const ResultConnection& aConnection,
+ const quota::OriginMetadata& aOriginMetadata) {
+ DatabaseVersion version = 0;
+ QM_TRY(MOZ_TO_RESULT(aConnection->GetSchemaVersion(&version)));
+
+ switch (version) {
+ case 0: {
+ return NS_OK;
+ }
+
+ case 1: {
+ return FileSystemDatabaseManagerVersion001::RescanTrackedUsages(
+ aConnection, aOriginMetadata);
+ }
+
+ default:
+ break;
+ }
+
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* static */
+Result<quota::UsageInfo, QMResult> FileSystemDatabaseManager::GetUsage(
+ const ResultConnection& aConnection,
+ const quota::OriginMetadata& aOriginMetadata) {
+ QM_TRY_INSPECT(const auto& databaseFile, GetDatabaseFile(aOriginMetadata));
+
+ // If database is deleted between connection creation and now, error
+ int64_t dbSize = 0;
+ QM_TRY(QM_TO_RESULT(databaseFile->GetFileSize(&dbSize)));
+
+ quota::UsageInfo result(quota::DatabaseUsageType(Some(dbSize)));
+
+ DatabaseVersion version = 0;
+ QM_TRY(QM_TO_RESULT(aConnection->GetSchemaVersion(&version)));
+
+ switch (version) {
+ case 0: {
+ return result;
+ }
+
+ case 1: {
+ QM_TRY_INSPECT(
+ const Usage& fileUsage,
+ FileSystemDatabaseManagerVersion001::GetFileUsage(aConnection));
+
+ // XXX: DatabaseUsage is currently total usage for most forms of storage
+ result += quota::DatabaseUsageType(Some(fileUsage));
+
+ return result;
+ }
+
+ default:
+ break;
+ }
+
+ return Err(QMResult(NS_ERROR_NOT_IMPLEMENTED));
+}
+
+} // namespace mozilla::dom::fs::data
diff --git a/dom/fs/parent/datamodel/FileSystemDatabaseManager.h b/dom/fs/parent/datamodel/FileSystemDatabaseManager.h
new file mode 100644
index 0000000000..c363bcb46f
--- /dev/null
+++ b/dom/fs/parent/datamodel/FileSystemDatabaseManager.h
@@ -0,0 +1,182 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_DATAMODEL_FILESYSTEMDATABASEMANAGER_H_
+#define DOM_FS_PARENT_DATAMODEL_FILESYSTEMDATABASEMANAGER_H_
+
+#include "ResultConnection.h"
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/quota/ForwardDecls.h"
+#include "mozilla/dom/quota/UsageInfo.h"
+#include "nsStringFwd.h"
+
+template <class T>
+class nsCOMPtr;
+
+class nsIFile;
+
+namespace mozilla {
+
+template <typename V, typename E>
+class Result;
+
+namespace dom {
+
+namespace quota {
+
+struct OriginMetadata;
+
+} // namespace quota
+
+namespace fs {
+
+class FileSystemChildMetadata;
+class FileSystemEntryMetadata;
+class FileSystemDirectoryListing;
+class FileSystemEntryPair;
+
+namespace data {
+
+class FileSystemDatabaseManager {
+ public:
+ /**
+ * @brief Updates stored usage data for all tracked files.
+ *
+ * @return nsresult error code
+ */
+ static nsresult RescanUsages(const ResultConnection& aConnection,
+ const quota::OriginMetadata& aOriginMetadata);
+
+ /**
+ * @brief Obtains the current total usage for origin and connection.
+ *
+ * @return Result<quota::UsageInfo, QMResult> On success,
+ * - field UsageInfo::DatabaseUsage contains the sum of current
+ * total database and file usage,
+ * - field UsageInfo::FileUsage is not used and should be equal to Nothing.
+ *
+ * If the disk is inaccessible, various IO related errors may be returned.
+ */
+ static Result<quota::UsageInfo, QMResult> GetUsage(
+ const ResultConnection& aConnection,
+ const quota::OriginMetadata& aOriginMetadata);
+
+ /**
+ * @brief Refreshes the stored file size.
+ *
+ * @param aEntry EntryId of the file whose size is refreshed.
+ */
+ virtual nsresult UpdateUsage(const EntryId& aEntry) = 0;
+
+ /**
+ * @brief Returns directory identifier, optionally creating it if it doesn't
+ * exist
+ *
+ * @param aHandle Current directory and filename
+ * @return Result<bool, QMResult> Directory identifier or error
+ */
+ virtual Result<EntryId, QMResult> GetOrCreateDirectory(
+ const FileSystemChildMetadata& aHandle, bool aCreate) = 0;
+
+ /**
+ * @brief Returns file identifier, optionally creating it if it doesn't exist
+ *
+ * @param aHandle Current directory and filename
+ * @param aType Content type which is ignored if the file already exists
+ * @param aCreate true if file is to be created when it does not already exist
+ * @return Result<bool, QMResult> File identifier or error
+ */
+ virtual Result<EntryId, QMResult> GetOrCreateFile(
+ const FileSystemChildMetadata& aHandle, const ContentType& aType,
+ bool aCreate) = 0;
+
+ /**
+ * @brief Returns the properties of a file corresponding to a file handle
+ */
+ virtual nsresult GetFile(const EntryId& aEntryId, ContentType& aType,
+ TimeStamp& lastModifiedMilliSeconds, Path& aPath,
+ nsCOMPtr<nsIFile>& aFile) const = 0;
+
+ virtual Result<FileSystemDirectoryListing, QMResult> GetDirectoryEntries(
+ const EntryId& aParent, PageNumber aPage) const = 0;
+
+ /**
+ * @brief Removes a directory
+ *
+ * @param aHandle Current directory and filename
+ * @return Result<bool, QMResult> False if file did not exist, otherwise true
+ * or error
+ */
+ virtual Result<bool, QMResult> RemoveDirectory(
+ const FileSystemChildMetadata& aHandle, bool aRecursive) = 0;
+
+ /**
+ * @brief Removes a file
+ *
+ * @param aHandle Current directory and filename
+ * @return Result<bool, QMResult> False if file did not exist, otherwise true
+ * or error
+ */
+ virtual Result<bool, QMResult> RemoveFile(
+ const FileSystemChildMetadata& aHandle) = 0;
+
+ /**
+ * @brief Rename a file/directory
+ *
+ * @param aHandle Source directory or file
+ * @param aNewName New entry name
+ * @return Result<bool, QMResult> False if entry didn't exist, otherwise true
+ * or error
+ */
+ virtual Result<bool, QMResult> RenameEntry(
+ const FileSystemEntryMetadata& aHandle, const Name& aNewName) = 0;
+
+ /**
+ * @brief Move a file/directory
+ *
+ * @param aHandle Source directory or file
+ * @param aNewDesignation Destination directory and entry name
+ * @return Result<bool, QMResult> False if entry didn't exist, otherwise true
+ * or error
+ */
+ virtual Result<bool, QMResult> MoveEntry(
+ const FileSystemEntryMetadata& aHandle,
+ const FileSystemChildMetadata& aNewDesignation) = 0;
+
+ /**
+ * @brief Tries to connect a parent directory to a file system item with a
+ * path, excluding the parent directory
+ *
+ * @param aHandle Pair of parent directory and child item candidates
+ * @return Result<Path, QMResult> Path or error if no it didn't exists
+ */
+ virtual Result<Path, QMResult> Resolve(
+ const FileSystemEntryPair& aEndpoints) const = 0;
+
+ /**
+ * @brief Close database connection.
+ */
+ virtual void Close() = 0;
+
+ /**
+ * @brief Start tracking file's usage.
+ */
+ virtual nsresult BeginUsageTracking(const EntryId& aEntryId) = 0;
+
+ /**
+ * @brief Stop tracking file's usage.
+ */
+ virtual nsresult EndUsageTracking(const EntryId& aEntryId) = 0;
+
+ virtual ~FileSystemDatabaseManager() = default;
+};
+
+} // namespace data
+} // namespace fs
+} // namespace dom
+} // namespace mozilla
+
+#endif // DOM_FS_PARENT_DATAMODEL_FILESYSTEMDATABASEMANAGER_H_
diff --git a/dom/fs/parent/datamodel/FileSystemDatabaseManagerVersion001.cpp b/dom/fs/parent/datamodel/FileSystemDatabaseManagerVersion001.cpp
new file mode 100644
index 0000000000..7c481c9791
--- /dev/null
+++ b/dom/fs/parent/datamodel/FileSystemDatabaseManagerVersion001.cpp
@@ -0,0 +1,1436 @@
+/* -*- 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 "FileSystemDatabaseManagerVersion001.h"
+
+#include "FileSystemContentTypeGuess.h"
+#include "FileSystemDataManager.h"
+#include "FileSystemFileManager.h"
+#include "ResultStatement.h"
+#include "mozStorageHelper.h"
+#include "mozilla/CheckedInt.h"
+#include "mozilla/dom/FileSystemDataManager.h"
+#include "mozilla/dom/FileSystemHandle.h"
+#include "mozilla/dom/FileSystemLog.h"
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/PFileSystemManager.h"
+#include "mozilla/dom/quota/Client.h"
+#include "mozilla/dom/quota/QuotaCommon.h"
+#include "mozilla/dom/quota/QuotaManager.h"
+#include "mozilla/dom/quota/QuotaObject.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+
+namespace mozilla::dom {
+
+using FileSystemEntries = nsTArray<fs::FileSystemEntryMetadata>;
+
+namespace fs::data {
+
+namespace {
+
+auto toNSResult = [](const auto& aRv) { return ToNSResult(aRv); };
+
+Result<bool, QMResult> ApplyEntryExistsQuery(
+ const FileSystemConnection& aConnection, const nsACString& aQuery,
+ const FileSystemChildMetadata& aHandle) {
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, aQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("parent"_ns, aHandle.parentId())));
+ QM_TRY(QM_TO_RESULT(stmt.BindNameByName("name"_ns, aHandle.childName())));
+
+ return stmt.YesOrNoQuery();
+}
+
+Result<bool, QMResult> ApplyEntryExistsQuery(
+ const FileSystemConnection& aConnection, const nsACString& aQuery,
+ const EntryId& aEntry) {
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, aQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, aEntry)));
+
+ return stmt.YesOrNoQuery();
+}
+
+Result<bool, QMResult> IsDirectoryEmpty(const FileSystemConnection& mConnection,
+ const EntryId& aEntryId) {
+ const nsLiteralCString isDirEmptyQuery =
+ "SELECT EXISTS ("
+ "SELECT 1 FROM Entries WHERE parent = :parent "
+ ");"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(mConnection, isDirEmptyQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("parent"_ns, aEntryId)));
+ QM_TRY_UNWRAP(bool childrenExist, stmt.YesOrNoQuery());
+
+ return !childrenExist;
+}
+
+Result<bool, QMResult> DoesDirectoryExist(
+ const FileSystemConnection& mConnection,
+ const FileSystemChildMetadata& aHandle) {
+ MOZ_ASSERT(!aHandle.parentId().IsEmpty());
+
+ const nsCString existsQuery =
+ "SELECT EXISTS "
+ "(SELECT 1 FROM Directories JOIN Entries USING (handle) "
+ "WHERE Directories.name = :name AND Entries.parent = :parent ) "
+ ";"_ns;
+
+ QM_TRY_RETURN(ApplyEntryExistsQuery(mConnection, existsQuery, aHandle));
+}
+
+Result<bool, QMResult> DoesDirectoryExist(
+ const FileSystemConnection& mConnection, const EntryId& aEntry) {
+ MOZ_ASSERT(!aEntry.IsEmpty());
+
+ const nsCString existsQuery =
+ "SELECT EXISTS "
+ "(SELECT 1 FROM Directories WHERE handle = :handle ) "
+ ";"_ns;
+
+ QM_TRY_RETURN(ApplyEntryExistsQuery(mConnection, existsQuery, aEntry));
+}
+
+Result<Path, QMResult> ResolveReversedPath(
+ const FileSystemConnection& aConnection,
+ const FileSystemEntryPair& aEndpoints) {
+ const nsCString pathQuery =
+ "WITH RECURSIVE followPath(handle, parent) AS ( "
+ "SELECT handle, parent "
+ "FROM Entries "
+ "WHERE handle=:entryId "
+ "UNION "
+ "SELECT Entries.handle, Entries.parent FROM followPath, Entries "
+ "WHERE followPath.parent=Entries.handle ) "
+ "SELECT COALESCE(Directories.name, Files.name), handle "
+ "FROM followPath "
+ "LEFT JOIN Directories USING(handle) "
+ "LEFT JOIN Files USING(handle);"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, pathQuery));
+ QM_TRY(
+ QM_TO_RESULT(stmt.BindEntryIdByName("entryId"_ns, aEndpoints.childId())));
+ QM_TRY_UNWRAP(bool moreResults, stmt.ExecuteStep());
+
+ Path pathResult;
+ while (moreResults) {
+ QM_TRY_UNWRAP(Name entryName, stmt.GetNameByColumn(/* Column */ 0u));
+ QM_TRY_UNWRAP(EntryId entryId, stmt.GetEntryIdByColumn(/* Column */ 1u));
+
+ if (aEndpoints.parentId() == entryId) {
+ return pathResult;
+ }
+ pathResult.AppendElement(entryName);
+
+ QM_TRY_UNWRAP(moreResults, stmt.ExecuteStep());
+ }
+
+ // Spec wants us to return 'null' for not-an-ancestor case
+ pathResult.Clear();
+ return pathResult;
+}
+
+Result<bool, QMResult> IsAncestor(const FileSystemConnection& aConnection,
+ const FileSystemEntryPair& aEndpoints) {
+ const nsCString pathQuery =
+ "WITH RECURSIVE followPath(handle, parent) AS ( "
+ "SELECT handle, parent "
+ "FROM Entries "
+ "WHERE handle=:entryId "
+ "UNION "
+ "SELECT Entries.handle, Entries.parent FROM followPath, Entries "
+ "WHERE followPath.parent=Entries.handle ) "
+ "SELECT EXISTS "
+ "(SELECT 1 FROM followPath "
+ "WHERE handle=:possibleAncestor ) "
+ ";"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, pathQuery));
+ QM_TRY(
+ QM_TO_RESULT(stmt.BindEntryIdByName("entryId"_ns, aEndpoints.childId())));
+ QM_TRY(QM_TO_RESULT(
+ stmt.BindEntryIdByName("possibleAncestor"_ns, aEndpoints.parentId())));
+
+ return stmt.YesOrNoQuery();
+}
+
+Result<bool, QMResult> DoesFileExist(const FileSystemConnection& aConnection,
+ const FileSystemChildMetadata& aHandle) {
+ MOZ_ASSERT(!aHandle.parentId().IsEmpty());
+
+ const nsCString existsQuery =
+ "SELECT EXISTS "
+ "(SELECT 1 FROM Files JOIN Entries USING (handle) "
+ "WHERE Files.name = :name AND Entries.parent = :parent ) "
+ ";"_ns;
+
+ QM_TRY_RETURN(ApplyEntryExistsQuery(aConnection, existsQuery, aHandle));
+}
+
+Result<bool, QMResult> DoesFileExist(const FileSystemConnection& aConnection,
+ const EntryId& aEntry) {
+ MOZ_ASSERT(!aEntry.IsEmpty());
+
+ const nsCString existsQuery =
+ "SELECT EXISTS "
+ "(SELECT 1 FROM Files WHERE handle = :handle ) "
+ ";"_ns;
+
+ QM_TRY_RETURN(ApplyEntryExistsQuery(aConnection, existsQuery, aEntry));
+}
+
+Result<EntryId, QMResult> FindParent(const FileSystemConnection& aConnection,
+ const EntryId& aEntryId) {
+ const nsCString aParentQuery =
+ "SELECT handle FROM Entries "
+ "WHERE handle IN ( "
+ "SELECT parent FROM Entries WHERE "
+ "handle = :entryId ) "
+ ";"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, aParentQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("entryId"_ns, aEntryId)));
+ QM_TRY_UNWRAP(bool moreResults, stmt.ExecuteStep());
+
+ if (!moreResults) {
+ return Err(QMResult(NS_ERROR_DOM_NOT_FOUND_ERR));
+ }
+
+ QM_TRY_UNWRAP(EntryId parentId, stmt.GetEntryIdByColumn(/* Column */ 0u));
+ return parentId;
+}
+
+nsresult GetFileAttributes(const FileSystemConnection& aConnection,
+ const EntryId& aEntryId, ContentType& aType) {
+ const nsLiteralCString getFileLocation =
+ "SELECT type FROM Files INNER JOIN Entries USING(handle) "
+ "WHERE handle = :entryId "
+ ";"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, getFileLocation));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("entryId"_ns, aEntryId)));
+ QM_TRY_UNWRAP(bool hasEntries, stmt.ExecuteStep());
+
+ // Type is an optional attribute
+ if (!hasEntries || stmt.IsNullByColumn(/* Column */ 0u)) {
+ return NS_OK;
+ }
+
+ QM_TRY_UNWRAP(aType, stmt.GetContentTypeByColumn(/* Column */ 0u));
+
+ return NS_OK;
+}
+
+nsresult GetEntries(const FileSystemConnection& aConnection,
+ const nsACString& aUnboundStmt, const EntryId& aParent,
+ PageNumber aPage, bool aDirectory,
+ FileSystemEntries& aEntries) {
+ // The entries inside a directory are sent to the child process in batches
+ // of pageSize items. Large value ensures that iteration is less often delayed
+ // by IPC messaging and querying the database.
+ // TODO: The current value 1024 is not optimized.
+ // TODO: Value "pageSize" is shared with the iterator implementation and
+ // should be defined in a common place.
+ const int32_t pageSize = 1024;
+
+ QM_TRY_UNWRAP(bool exists, DoesDirectoryExist(aConnection, aParent));
+ if (!exists) {
+ return NS_ERROR_DOM_NOT_FOUND_ERR;
+ }
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, aUnboundStmt));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("parent"_ns, aParent)));
+ QM_TRY(QM_TO_RESULT(stmt.BindPageNumberByName("pageSize"_ns, pageSize)));
+ QM_TRY(QM_TO_RESULT(
+ stmt.BindPageNumberByName("pageOffset"_ns, aPage * pageSize)));
+
+ QM_TRY_UNWRAP(bool moreResults, stmt.ExecuteStep());
+
+ while (moreResults) {
+ QM_TRY_UNWRAP(EntryId entryId, stmt.GetEntryIdByColumn(/* Column */ 0u));
+ QM_TRY_UNWRAP(Name entryName, stmt.GetNameByColumn(/* Column */ 1u));
+
+ FileSystemEntryMetadata metadata(entryId, entryName, aDirectory);
+ aEntries.AppendElement(metadata);
+
+ QM_TRY_UNWRAP(moreResults, stmt.ExecuteStep());
+ }
+
+ return NS_OK;
+}
+
+Result<EntryId, QMResult> GetUniqueEntryId(
+ const FileSystemConnection& aConnection,
+ const FileSystemChildMetadata& aHandle) {
+ const nsCString existsQuery =
+ "SELECT EXISTS "
+ "(SELECT 1 FROM Entries "
+ "WHERE handle = :handle )"
+ ";"_ns;
+
+ FileSystemChildMetadata generatorInput = aHandle;
+
+ const size_t maxRounds = 1024u;
+
+ for (size_t hangGuard = 0u; hangGuard < maxRounds; ++hangGuard) {
+ QM_TRY_UNWRAP(EntryId entryId, fs::data::GetEntryHandle(generatorInput));
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, existsQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, entryId)));
+
+ QM_TRY_UNWRAP(bool alreadyInUse, stmt.YesOrNoQuery());
+
+ if (!alreadyInUse) {
+ return entryId;
+ }
+
+ generatorInput.parentId() = entryId;
+ }
+
+ return Err(QMResult(NS_ERROR_UNEXPECTED));
+}
+
+Result<EntryId, QMResult> FindEntryId(const FileSystemConnection& aConnection,
+ const FileSystemChildMetadata& aHandle,
+ bool aIsFile) {
+ const nsCString aDirectoryQuery =
+ "SELECT Entries.handle FROM Directories JOIN Entries USING (handle) "
+ "WHERE Directories.name = :name AND Entries.parent = :parent "
+ ";"_ns;
+
+ const nsCString aFileQuery =
+ "SELECT Entries.handle FROM Files JOIN Entries USING (handle) "
+ "WHERE Files.name = :name AND Entries.parent = :parent "
+ ";"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(
+ aConnection, aIsFile ? aFileQuery : aDirectoryQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("parent"_ns, aHandle.parentId())));
+ QM_TRY(QM_TO_RESULT(stmt.BindNameByName("name"_ns, aHandle.childName())));
+ QM_TRY_UNWRAP(bool moreResults, stmt.ExecuteStep());
+
+ if (!moreResults) {
+ return Err(QMResult(NS_ERROR_DOM_NOT_FOUND_ERR));
+ }
+
+ QM_TRY_UNWRAP(EntryId entryId, stmt.GetEntryIdByColumn(/* Column */ 0u));
+
+ return entryId;
+}
+
+Result<bool, QMResult> IsSame(const FileSystemConnection& aConnection,
+ const FileSystemEntryMetadata& aHandle,
+ const FileSystemChildMetadata& aNewHandle,
+ bool aIsFile) {
+ MOZ_ASSERT(!aNewHandle.parentId().IsEmpty());
+
+ // Typically aNewHandle does not exist which is not an error
+ QM_TRY_RETURN(QM_OR_ELSE_LOG_VERBOSE_IF(
+ // Expression.
+ FindEntryId(aConnection, aNewHandle, aIsFile)
+ .map([&aHandle](const EntryId& entryId) {
+ return entryId == aHandle.entryId();
+ }),
+ // Predicate.
+ IsSpecificError<NS_ERROR_DOM_NOT_FOUND_ERR>,
+ // Fallback.
+ ErrToOkFromQMResult<false>));
+}
+
+Result<bool, QMResult> IsFile(const FileSystemConnection& aConnection,
+ const EntryId& aEntryId) {
+ QM_TRY_UNWRAP(bool exists, DoesFileExist(aConnection, aEntryId));
+ if (exists) {
+ return true;
+ }
+
+ QM_TRY_UNWRAP(exists, DoesDirectoryExist(aConnection, aEntryId));
+ if (exists) {
+ return false;
+ }
+
+ // Doesn't exist
+ return Err(QMResult(NS_ERROR_DOM_NOT_FOUND_ERR));
+}
+
+nsresult PerformRename(const FileSystemConnection& aConnection,
+ const FileSystemEntryMetadata& aHandle,
+ const Name& aNewName, const ContentType& aNewType,
+ const nsLiteralCString& aNameUpdateQuery) {
+ MOZ_ASSERT(!aHandle.entryId().IsEmpty());
+ MOZ_ASSERT(IsValidName(aHandle.entryName()));
+
+ // same-name is checked in RenameEntry()
+ if (!IsValidName(aNewName)) {
+ return NS_ERROR_DOM_TYPE_MISMATCH_ERR;
+ }
+
+ // TODO: This should fail when handle doesn't exist - the
+ // explicit file or directory existence queries are redundant
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, aNameUpdateQuery)
+ .mapErr(toNSResult));
+ QM_TRY(QM_OR_ELSE_WARN_IF(
+ // Expression
+ MOZ_TO_RESULT(stmt.BindContentTypeByName("type"_ns, aNewType)),
+ // Predicate
+ IsSpecificError<NS_ERROR_ILLEGAL_VALUE>,
+ // Fallback
+ ErrToDefaultOk<>));
+ QM_TRY(MOZ_TO_RESULT(stmt.BindNameByName("name"_ns, aNewName)));
+ QM_TRY(MOZ_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, aHandle.entryId())));
+ QM_TRY(MOZ_TO_RESULT(stmt.Execute()));
+
+ return NS_OK;
+}
+
+nsresult PerformRenameDirectory(const FileSystemConnection& aConnection,
+ const FileSystemEntryMetadata& aHandle,
+ const Name& aNewName) {
+ const nsLiteralCString updateDirectoryNameQuery =
+ "UPDATE Directories "
+ "SET name = :name "
+ "WHERE handle = :handle "
+ ";"_ns;
+
+ return PerformRename(aConnection, aHandle, aNewName, /* dummy type */ ""_ns,
+ updateDirectoryNameQuery);
+}
+
+nsresult PerformRenameFile(const FileSystemConnection& aConnection,
+ const FileSystemEntryMetadata& aHandle,
+ const Name& aNewName, const ContentType& aNewType) {
+ const nsLiteralCString updateFileNameQuery =
+ "UPDATE Files "
+ "SET type = :type, name = :name "
+ "WHERE handle = :handle "
+ ";"_ns;
+
+ return PerformRename(aConnection, aHandle, aNewName, aNewType,
+ updateFileNameQuery);
+}
+
+Result<nsTArray<EntryId>, QMResult> FindDescendants(
+ const FileSystemConnection& aConnection, const EntryId& aEntryId) {
+ const nsLiteralCString descendantsQuery =
+ "WITH RECURSIVE traceChildren(handle, parent) AS ( "
+ "SELECT handle, parent "
+ "FROM Entries "
+ "WHERE handle=:handle "
+ "UNION "
+ "SELECT Entries.handle, Entries.parent FROM traceChildren, Entries "
+ "WHERE traceChildren.handle=Entries.parent ) "
+ "SELECT handle "
+ "FROM traceChildren INNER JOIN Files "
+ "USING(handle) "
+ ";"_ns;
+
+ nsTArray<EntryId> descendants;
+ {
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, descendantsQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, aEntryId)));
+ QM_TRY_UNWRAP(bool moreResults, stmt.ExecuteStep());
+
+ while (moreResults) {
+ QM_TRY_UNWRAP(EntryId entryId, stmt.GetEntryIdByColumn(/* Column */ 0u));
+
+ descendants.AppendElement(entryId);
+
+ QM_TRY_UNWRAP(moreResults, stmt.ExecuteStep());
+ }
+ }
+
+ return descendants;
+}
+
+nsresult SetUsageTracking(const FileSystemConnection& aConnection,
+ const EntryId& aEntryId, bool aTracked) {
+ const nsLiteralCString setTrackedQuery =
+ "INSERT INTO Usages "
+ "( handle, tracked ) "
+ "VALUES "
+ "( :handle, :tracked ) "
+ "ON CONFLICT(handle) DO "
+ "UPDATE SET tracked = excluded.tracked "
+ ";"_ns;
+
+ const nsresult onMissingFile = aTracked ? NS_ERROR_DOM_NOT_FOUND_ERR : NS_OK;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, setTrackedQuery));
+ QM_TRY(MOZ_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, aEntryId)));
+ QM_TRY(MOZ_TO_RESULT(stmt.BindBooleanByName("tracked"_ns, aTracked)));
+ QM_TRY(MOZ_TO_RESULT(stmt.Execute()), onMissingFile,
+ ([&aConnection, &aEntryId](const auto& aRv) {
+ // Usages constrains entryId to be present in Files
+ MOZ_ASSERT(NS_ERROR_STORAGE_CONSTRAINT == ToNSResult(aRv));
+
+ // The query *should* fail if and only if file does not exist
+ QM_TRY_UNWRAP(DebugOnly<bool> fileExists,
+ DoesFileExist(aConnection, aEntryId), QM_VOID);
+ MOZ_ASSERT(!fileExists);
+ }));
+
+ return NS_OK;
+}
+
+Result<nsTArray<EntryId>, QMResult> GetTrackedFiles(
+ const FileSystemConnection& aConnection) {
+ static const nsLiteralCString getTrackedFilesQuery =
+ "SELECT handle FROM Usages WHERE tracked = TRUE;"_ns;
+
+ nsTArray<EntryId> trackedFiles;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, getTrackedFilesQuery));
+ QM_TRY_UNWRAP(bool moreResults, stmt.ExecuteStep());
+
+ while (moreResults) {
+ QM_TRY_UNWRAP(EntryId entryId, stmt.GetEntryIdByColumn(/* Column */ 0u));
+
+ trackedFiles.AppendElement(entryId);
+
+ QM_TRY_UNWRAP(moreResults, stmt.ExecuteStep());
+ }
+
+ return trackedFiles;
+}
+
+/** This handles the file not found error by assigning 0 usage to the dangling
+ * handle and puts the handle to a non-tracked state. Otherwise, when the
+ * file or database cannot be reached, the file remains in the tracked state.
+ */
+template <class QuotaCacheUpdate>
+nsresult UpdateUsageForFileEntry(const FileSystemConnection& aConnection,
+ const FileSystemFileManager& aFileManager,
+ const EntryId& aEntryId,
+ const nsLiteralCString& aUpdateQuery,
+ QuotaCacheUpdate&& aUpdateCache) {
+ QM_TRY_INSPECT(const auto& fileHandle, aFileManager.GetFile(aEntryId));
+
+ // A file could have changed in a way which doesn't allow to read its size.
+ QM_TRY_UNWRAP(
+ const Usage fileSize,
+ QM_OR_ELSE_WARN_IF(
+ // Expression.
+ MOZ_TO_RESULT_INVOKE_MEMBER(fileHandle, GetFileSize),
+ // Predicate.
+ ([](const nsresult rv) { return rv == NS_ERROR_FILE_NOT_FOUND; }),
+ // Fallback. If the file does no longer exist, treat it as 0-sized.
+ ErrToDefaultOk<Usage>));
+
+ QM_TRY(MOZ_TO_RESULT(aUpdateCache(fileSize)));
+
+ // No transaction as one statement succeeds or fails atomically
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, aUpdateQuery));
+
+ QM_TRY(MOZ_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, aEntryId)));
+
+ QM_TRY(MOZ_TO_RESULT(stmt.BindUsageByName("usage"_ns, fileSize)));
+
+ QM_TRY(MOZ_TO_RESULT(stmt.Execute()));
+
+ return NS_OK;
+}
+
+nsresult UpdateUsageUnsetTracked(const FileSystemConnection& aConnection,
+ const FileSystemFileManager& aFileManager,
+ const EntryId& aEntryId) {
+ static const nsLiteralCString updateUsagesUnsetTrackedQuery =
+ "UPDATE Usages SET usage = :usage, tracked = FALSE "
+ "WHERE handle = :handle;"_ns;
+
+ auto noCacheUpdateNeeded = [](auto) { return NS_OK; };
+
+ return UpdateUsageForFileEntry(aConnection, aFileManager, aEntryId,
+ updateUsagesUnsetTrackedQuery,
+ std::move(noCacheUpdateNeeded));
+}
+
+/**
+ * @brief Get the sum of usages for all file descendants of a directory entry.
+ * We obtain the value with one query, which is presumably better than having a
+ * separate query for each individual descendant.
+ * TODO: Check if this is true
+ *
+ * Please see GetFileUsage documentation for why we use the latest recorded
+ * value from the database instead of the file size property from the disk.
+ */
+Result<Usage, QMResult> GetUsagesOfDescendants(
+ const FileSystemConnection& aConnection, const EntryId& aEntryId) {
+ const nsLiteralCString descendantUsagesQuery =
+ "WITH RECURSIVE traceChildren(handle, parent) AS ( "
+ "SELECT handle, parent "
+ "FROM Entries "
+ "WHERE handle=:handle "
+ "UNION "
+ "SELECT Entries.handle, Entries.parent FROM traceChildren, Entries "
+ "WHERE traceChildren.handle=Entries.parent ) "
+ "SELECT sum(Usages.usage) "
+ "FROM traceChildren INNER JOIN Usages "
+ "USING(handle) "
+ ";"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, descendantUsagesQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, aEntryId)));
+ QM_TRY_UNWRAP(const bool moreResults, stmt.ExecuteStep());
+ if (!moreResults) {
+ return 0;
+ }
+
+ QM_TRY_RETURN(stmt.GetUsageByColumn(/* Column */ 0u));
+}
+
+/**
+ * @brief Get recorded usage or zero if nothing was ever written to the file.
+ * Removing files is only allowed when there is no lock on the file, and their
+ * usage is either correctly recorded in the database during unlock, or nothing,
+ * or they remain in tracked state and the quota manager assumes their usage to
+ * be equal to the latest recorded value. In all cases, the latest recorded
+ * value (or nothing) is the correct amount of quota to be released.
+ */
+Result<Usage, QMResult> GetKnownUsage(const FileSystemConnection& aConnection,
+ const EntryId& aEntryId) {
+ const nsLiteralCString trackedUsageQuery =
+ "SELECT usage FROM Usages WHERE handle = :handle ;"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, trackedUsageQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, aEntryId)));
+
+ QM_TRY_UNWRAP(const bool moreResults, stmt.ExecuteStep());
+ if (!moreResults) {
+ return 0;
+ }
+
+ QM_TRY_RETURN(stmt.GetUsageByColumn(/* Column */ 0u));
+}
+
+/**
+ * @brief Get the recorded usage only if the file is in tracked state.
+ * During origin initialization, if the usage on disk is unreadable, the latest
+ * recorded usage is reported to the quota manager for the tracked files.
+ * To allow writing, we attempt to update the real usage with one database and
+ * one file size query.
+ */
+Result<Maybe<Usage>, QMResult> GetMaybeTrackedUsage(
+ const FileSystemConnection& aConnection, const EntryId& aEntryId) {
+ const nsLiteralCString trackedUsageQuery =
+ "SELECT usage FROM Usages WHERE tracked = TRUE AND handle = :handle "
+ ");"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, trackedUsageQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, aEntryId)));
+
+ QM_TRY_UNWRAP(const bool moreResults, stmt.ExecuteStep());
+ if (!moreResults) {
+ return Maybe<Usage>(Nothing());
+ }
+
+ QM_TRY_UNWRAP(Usage trackedUsage, stmt.GetUsageByColumn(/* Column */ 0u));
+
+ return Some(trackedUsage);
+}
+
+Result<bool, nsresult> ScanTrackedFiles(
+ const FileSystemConnection& aConnection,
+ const FileSystemFileManager& aFileManager) {
+ QM_TRY_INSPECT(const nsTArray<EntryId>& trackedFiles,
+ GetTrackedFiles(aConnection).mapErr(toNSResult));
+
+ bool ok = true;
+ for (const auto& entryId : trackedFiles) {
+ // On success, tracked is set to false, otherwise its value is kept (= true)
+ QM_WARNONLY_TRY(MOZ_TO_RESULT(UpdateUsageUnsetTracked(
+ aConnection, aFileManager, entryId)),
+ [&ok](const auto& /*aRv*/) { ok = false; });
+ }
+
+ return ok;
+}
+
+Result<Ok, QMResult> DeleteEntry(const FileSystemConnection& aConnection,
+ const EntryId& aEntryId) {
+ // If it's a directory, deleting the handle will cascade
+ const nsLiteralCString deleteEntryQuery =
+ "DELETE FROM Entries "
+ "WHERE handle = :handle "
+ ";"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, deleteEntryQuery));
+
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, aEntryId)));
+
+ QM_TRY(QM_TO_RESULT(stmt.Execute()));
+
+ return Ok{};
+}
+
+Result<int32_t, QMResult> GetTrackedFilesCount(
+ const FileSystemConnection& aConnection) {
+ // TODO: We could query the count directly
+ QM_TRY_INSPECT(const auto& trackedFiles, GetTrackedFiles(aConnection));
+
+ CheckedInt32 checkedFileCount = trackedFiles.Length();
+ QM_TRY(OkIf(checkedFileCount.isValid()),
+ Err(QMResult(NS_ERROR_ILLEGAL_VALUE)));
+
+ return checkedFileCount.value();
+}
+
+void LogWithFilename(const FileSystemFileManager& aFileManager,
+ const char* aFormat, const EntryId& aEntryId) {
+ if (!LOG_ENABLED()) {
+ return;
+ }
+
+ QM_TRY_INSPECT(const auto& localFile, aFileManager.GetFile(aEntryId),
+ QM_VOID);
+
+ nsAutoString localPath;
+ QM_TRY(MOZ_TO_RESULT(localFile->GetPath(localPath)), QM_VOID);
+ LOG((aFormat, NS_ConvertUTF16toUTF8(localPath).get()));
+}
+
+// TODO: Implement idle maintenance
+void TryRemoveDuringIdleMaintenance(
+ const nsTArray<EntryId>& /* aItemToRemove */) {
+ // Not implemented
+}
+
+} // namespace
+
+FileSystemDatabaseManagerVersion001::FileSystemDatabaseManagerVersion001(
+ FileSystemDataManager* aDataManager, FileSystemConnection&& aConnection,
+ UniquePtr<FileSystemFileManager>&& aFileManager, const EntryId& aRootEntry)
+ : mDataManager(aDataManager),
+ mConnection(aConnection),
+ mFileManager(std::move(aFileManager)),
+ mRootEntry(aRootEntry),
+ mClientMetadata(aDataManager->OriginMetadataRef(),
+ quota::Client::FILESYSTEM),
+ mFilesOfUnknownUsage(-1) {}
+
+/* static */
+nsresult FileSystemDatabaseManagerVersion001::RescanTrackedUsages(
+ const FileSystemConnection& aConnection,
+ const quota::OriginMetadata& aOriginMetadata) {
+ QM_TRY_UNWRAP(FileSystemFileManager fileManager,
+ data::FileSystemFileManager::CreateFileSystemFileManager(
+ aOriginMetadata));
+
+ QM_TRY_UNWRAP(bool ok, ScanTrackedFiles(aConnection, fileManager));
+ if (ok) {
+ return NS_OK;
+ }
+
+ // Retry once without explicit delay
+ QM_TRY_UNWRAP(ok, ScanTrackedFiles(aConnection, fileManager));
+ if (!ok) {
+ return NS_ERROR_UNEXPECTED;
+ }
+
+ return NS_OK;
+}
+
+/* static */
+Result<Usage, QMResult> FileSystemDatabaseManagerVersion001::GetFileUsage(
+ const FileSystemConnection& aConnection) {
+ const nsLiteralCString sumUsagesQuery = "SELECT sum(usage) FROM Usages;"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConnection, sumUsagesQuery));
+
+ QM_TRY_UNWRAP(const bool moreResults, stmt.ExecuteStep());
+ if (!moreResults) {
+ return Err(QMResult(NS_ERROR_DOM_FILE_NOT_READABLE_ERR));
+ }
+
+ QM_TRY_UNWRAP(Usage totalFiles, stmt.GetUsageByColumn(/* Column */ 0u));
+
+ return totalFiles;
+}
+
+nsresult FileSystemDatabaseManagerVersion001::UpdateUsageInDatabase(
+ const EntryId& aEntry, Usage aNewDiskUsage) {
+ const nsLiteralCString updateUsageQuery =
+ "INSERT INTO Usages "
+ "( handle, usage ) "
+ "VALUES "
+ "( :handle, :usage ) "
+ "ON CONFLICT(handle) DO "
+ "UPDATE SET usage = excluded.usage "
+ ";"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(mConnection, updateUsageQuery));
+ QM_TRY(MOZ_TO_RESULT(stmt.BindUsageByName("usage"_ns, aNewDiskUsage)));
+ QM_TRY(MOZ_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, aEntry)));
+ QM_TRY(MOZ_TO_RESULT(stmt.Execute()));
+
+ return NS_OK;
+}
+
+Result<EntryId, QMResult>
+FileSystemDatabaseManagerVersion001::GetOrCreateDirectory(
+ const FileSystemChildMetadata& aHandle, bool aCreate) {
+ MOZ_ASSERT(!aHandle.parentId().IsEmpty());
+
+ const auto& name = aHandle.childName();
+ // Belt and suspenders: check here as well as in child.
+ if (!IsValidName(name)) {
+ return Err(QMResult(NS_ERROR_DOM_TYPE_MISMATCH_ERR));
+ }
+ MOZ_ASSERT(!name.IsVoid() && !name.IsEmpty());
+
+ bool exists = true;
+ QM_TRY_UNWRAP(exists, DoesFileExist(mConnection, aHandle));
+
+ // By spec, we don't allow a file and a directory
+ // to have the same name and parent
+ if (exists) {
+ return Err(QMResult(NS_ERROR_DOM_TYPE_MISMATCH_ERR));
+ }
+
+ QM_TRY_UNWRAP(exists, DoesDirectoryExist(mConnection, aHandle));
+
+ // exists as directory
+ if (exists) {
+ return FindEntryId(mConnection, aHandle, false);
+ }
+
+ if (!aCreate) {
+ return Err(QMResult(NS_ERROR_DOM_NOT_FOUND_ERR));
+ }
+
+ const nsLiteralCString insertEntryQuery =
+ "INSERT OR IGNORE INTO Entries "
+ "( handle, parent ) "
+ "VALUES "
+ "( :handle, :parent ) "
+ ";"_ns;
+
+ const nsLiteralCString insertDirectoryQuery =
+ "INSERT OR IGNORE INTO Directories "
+ "( handle, name ) "
+ "VALUES "
+ "( :handle, :name ) "
+ ";"_ns;
+
+ QM_TRY_UNWRAP(EntryId entryId, GetUniqueEntryId(mConnection, aHandle));
+ MOZ_ASSERT(!entryId.IsEmpty());
+
+ mozStorageTransaction transaction(
+ mConnection.get(), false, mozIStorageConnection::TRANSACTION_IMMEDIATE);
+ {
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(mConnection, insertEntryQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, entryId)));
+ QM_TRY(
+ QM_TO_RESULT(stmt.BindEntryIdByName("parent"_ns, aHandle.parentId())));
+ QM_TRY(QM_TO_RESULT(stmt.Execute()));
+ }
+
+ {
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(mConnection, insertDirectoryQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, entryId)));
+ QM_TRY(QM_TO_RESULT(stmt.BindNameByName("name"_ns, name)));
+ QM_TRY(QM_TO_RESULT(stmt.Execute()));
+ }
+
+ QM_TRY(QM_TO_RESULT(transaction.Commit()));
+
+ QM_TRY_UNWRAP(DebugOnly<bool> doesItExistNow,
+ DoesDirectoryExist(mConnection, aHandle));
+ MOZ_ASSERT(doesItExistNow);
+
+ return entryId;
+}
+
+Result<EntryId, QMResult> FileSystemDatabaseManagerVersion001::GetOrCreateFile(
+ const FileSystemChildMetadata& aHandle, const ContentType& aType,
+ bool aCreate) {
+ MOZ_ASSERT(!aHandle.parentId().IsEmpty());
+
+ const auto& name = aHandle.childName();
+ // Belt and suspenders: check here as well as in child.
+ if (!IsValidName(name)) {
+ return Err(QMResult(NS_ERROR_DOM_TYPE_MISMATCH_ERR));
+ }
+ MOZ_ASSERT(!name.IsVoid() && !name.IsEmpty());
+
+ QM_TRY_UNWRAP(bool exists, DoesDirectoryExist(mConnection, aHandle));
+
+ // By spec, we don't allow a file and a directory
+ // to have the same name and parent
+ if (exists) {
+ return Err(QMResult(NS_ERROR_DOM_TYPE_MISMATCH_ERR));
+ }
+
+ QM_TRY_UNWRAP(exists, DoesFileExist(mConnection, aHandle));
+
+ if (exists) {
+ return FindEntryId(mConnection, aHandle, true);
+ }
+
+ if (!aCreate) {
+ return Err(QMResult(NS_ERROR_DOM_NOT_FOUND_ERR));
+ }
+
+ const nsLiteralCString insertEntryQuery =
+ "INSERT INTO Entries "
+ "( handle, parent ) "
+ "VALUES "
+ "( :handle, :parent ) "
+ ";"_ns;
+
+ const nsLiteralCString insertFileQuery =
+ "INSERT INTO Files "
+ "( handle, type, name ) "
+ "VALUES "
+ "( :handle, :type, :name ) "
+ ";"_ns;
+
+ QM_TRY_UNWRAP(EntryId entryId, GetUniqueEntryId(mConnection, aHandle));
+ MOZ_ASSERT(!entryId.IsEmpty());
+
+ const ContentType& type =
+ aType.IsVoid() ? FileSystemContentTypeGuess::FromPath(name) : aType;
+
+ mozStorageTransaction transaction(
+ mConnection.get(), false, mozIStorageConnection::TRANSACTION_IMMEDIATE);
+ {
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(mConnection, insertEntryQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, entryId)));
+ QM_TRY(
+ QM_TO_RESULT(stmt.BindEntryIdByName("parent"_ns, aHandle.parentId())));
+ QM_TRY(QM_TO_RESULT(stmt.Execute()));
+ }
+
+ {
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(mConnection, insertFileQuery));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, entryId)));
+ QM_TRY(QM_TO_RESULT(stmt.BindContentTypeByName("type"_ns, type)));
+ QM_TRY(QM_TO_RESULT(stmt.BindNameByName("name"_ns, name)));
+ QM_TRY(QM_TO_RESULT(stmt.Execute()));
+ }
+
+ QM_TRY(QM_TO_RESULT(transaction.Commit()));
+
+ return entryId;
+}
+
+Result<FileSystemDirectoryListing, QMResult>
+FileSystemDatabaseManagerVersion001::GetDirectoryEntries(
+ const EntryId& aParent, PageNumber aPage) const {
+ // TODO: Offset is reported to have bad performance - see Bug 1780386.
+ const nsCString directoriesQuery =
+ "SELECT Dirs.handle, Dirs.name "
+ "FROM Directories AS Dirs "
+ "INNER JOIN ( "
+ "SELECT handle "
+ "FROM Entries "
+ "WHERE parent = :parent "
+ "LIMIT :pageSize "
+ "OFFSET :pageOffset ) "
+ "AS Ents "
+ "ON Dirs.handle = Ents.handle "
+ ";"_ns;
+ const nsCString filesQuery =
+ "SELECT Files.handle, Files.name "
+ "FROM Files "
+ "INNER JOIN ( "
+ "SELECT handle "
+ "FROM Entries "
+ "WHERE parent = :parent "
+ "LIMIT :pageSize "
+ "OFFSET :pageOffset ) "
+ "AS Ents "
+ "ON Files.handle = Ents.handle "
+ ";"_ns;
+
+ FileSystemDirectoryListing entries;
+ QM_TRY(
+ QM_TO_RESULT(GetEntries(mConnection, directoriesQuery, aParent, aPage,
+ /* aDirectory */ true, entries.directories())));
+
+ QM_TRY(QM_TO_RESULT(GetEntries(mConnection, filesQuery, aParent, aPage,
+ /* aDirectory */ false, entries.files())));
+
+ return entries;
+}
+
+nsresult FileSystemDatabaseManagerVersion001::GetFile(
+ const EntryId& aEntryId, ContentType& aType,
+ TimeStamp& lastModifiedMilliSeconds, nsTArray<Name>& aPath,
+ nsCOMPtr<nsIFile>& aFile) const {
+ MOZ_ASSERT(!aEntryId.IsEmpty());
+
+ const FileSystemEntryPair endPoints(mRootEntry, aEntryId);
+ QM_TRY_UNWRAP(aPath, ResolveReversedPath(mConnection, endPoints));
+ if (aPath.IsEmpty()) {
+ return NS_ERROR_DOM_NOT_FOUND_ERR;
+ }
+
+ QM_TRY_UNWRAP(aFile, mFileManager->GetOrCreateFile(aEntryId));
+
+ QM_TRY(MOZ_TO_RESULT(GetFileAttributes(mConnection, aEntryId, aType)));
+
+ PRTime lastModTime = 0;
+ QM_TRY(MOZ_TO_RESULT(aFile->GetLastModifiedTime(&lastModTime)));
+ lastModifiedMilliSeconds = static_cast<TimeStamp>(lastModTime);
+
+ aPath.Reverse();
+
+ return NS_OK;
+}
+
+nsresult FileSystemDatabaseManagerVersion001::UpdateUsage(
+ const EntryId& aEntry) {
+ // We don't track directories or non-existent files.
+ QM_TRY_UNWRAP(bool fileExists,
+ DoesFileExist(mConnection, aEntry).mapErr(toNSResult));
+ if (!fileExists) {
+ return NS_OK; // May be deleted before update, no assert
+ }
+
+ QM_TRY_UNWRAP(bool isFolder,
+ DoesDirectoryExist(mConnection, aEntry).mapErr(toNSResult));
+ if (isFolder) {
+ return NS_OK; // May be deleted and replaced by a folder, no assert
+ }
+
+ nsCOMPtr<nsIFile> file;
+ QM_TRY_UNWRAP(file, mFileManager->GetOrCreateFile(aEntry));
+ MOZ_ASSERT(file);
+
+ Usage fileSize = 0;
+ QM_TRY(MOZ_TO_RESULT(file->GetFileSize(&fileSize)));
+
+ QM_TRY(MOZ_TO_RESULT(UpdateUsageInDatabase(aEntry, fileSize)));
+
+ return NS_OK;
+}
+
+nsresult FileSystemDatabaseManagerVersion001::UpdateCachedQuotaUsage(
+ const EntryId& aEntryId, Usage aOldUsage, Usage aNewUsage) {
+ quota::QuotaManager* quotaManager = quota::QuotaManager::Get();
+ MOZ_ASSERT(quotaManager);
+
+ QM_TRY_UNWRAP(nsCOMPtr<nsIFile> fileObj,
+ mFileManager->GetFile(aEntryId).mapErr(toNSResult));
+
+ RefPtr<quota::QuotaObject> quotaObject = quotaManager->GetQuotaObject(
+ quota::PERSISTENCE_TYPE_DEFAULT, mClientMetadata,
+ quota::Client::FILESYSTEM, fileObj, aOldUsage);
+ MOZ_ASSERT(quotaObject);
+
+ QM_TRY(OkIf(quotaObject->MaybeUpdateSize(aNewUsage, /* aTruncate */ true)),
+ NS_ERROR_FILE_NO_DEVICE_SPACE);
+
+ return NS_OK;
+}
+
+Result<Ok, QMResult> FileSystemDatabaseManagerVersion001::EnsureUsageIsKnown(
+ const EntryId& aEntryId) {
+ if (mFilesOfUnknownUsage < 0) { // Lazy initialization
+ QM_TRY_UNWRAP(mFilesOfUnknownUsage, GetTrackedFilesCount(mConnection));
+ }
+
+ if (mFilesOfUnknownUsage == 0) {
+ return Ok{};
+ }
+
+ QM_TRY_UNWRAP(Maybe<Usage> oldUsage,
+ GetMaybeTrackedUsage(mConnection, aEntryId));
+ if (oldUsage.isNothing()) {
+ return Ok{}; // Usage is 0 or it was successfully recorded at unlocking.
+ }
+
+ auto quotaCacheUpdate = [this, &aEntryId,
+ oldSize = oldUsage.value()](Usage aNewSize) {
+ return UpdateCachedQuotaUsage(aEntryId, oldSize, aNewSize);
+ };
+
+ static const nsLiteralCString updateUsagesKeepTrackedQuery =
+ "UPDATE Usages SET usage = :usage WHERE handle = :handle;"_ns;
+
+ // If usage update fails, we log an error and keep things the way they were.
+ QM_TRY(QM_TO_RESULT(UpdateUsageForFileEntry(
+ mConnection, *mFileManager, aEntryId, updateUsagesKeepTrackedQuery,
+ std::move(quotaCacheUpdate))),
+ Err(QMResult(NS_ERROR_DOM_FILE_NOT_READABLE_ERR)),
+ ([this, &aEntryId](const auto& /*aRv*/) {
+ LogWithFilename(*mFileManager, "Could not read the size of file %s",
+ aEntryId);
+ }));
+
+ // We read and updated the quota usage successfully.
+ --mFilesOfUnknownUsage;
+ MOZ_ASSERT(mFilesOfUnknownUsage >= 0);
+
+ return Ok{};
+}
+
+nsresult FileSystemDatabaseManagerVersion001::BeginUsageTracking(
+ const EntryId& aEntryId) {
+ MOZ_ASSERT(!aEntryId.IsEmpty());
+
+ // If file is already tracked but we cannot read its size, error.
+ // If file does not exist, this will succeed because usage is zero.
+ QM_TRY(EnsureUsageIsKnown(aEntryId));
+
+ // If file does not exist, set usage tracking to true fails with
+ // file not found error.
+ return SetUsageTracking(mConnection, aEntryId, true);
+}
+
+nsresult FileSystemDatabaseManagerVersion001::EndUsageTracking(
+ const EntryId& aEntryId) {
+ // This is expected to fail only if database is unreachable.
+ return SetUsageTracking(mConnection, aEntryId, false);
+}
+
+Result<bool, QMResult> FileSystemDatabaseManagerVersion001::RemoveDirectory(
+ const FileSystemChildMetadata& aHandle, bool aRecursive) {
+ MOZ_ASSERT(!aHandle.parentId().IsEmpty());
+
+ auto isAnyDescendantLocked = [this](const nsTArray<EntryId>& aDescendants) {
+ return std::any_of(aDescendants.cbegin(), aDescendants.cend(),
+ [this](const auto& descendant) {
+ return mDataManager->IsLocked(descendant);
+ });
+ };
+
+ if (aHandle.childName().IsEmpty()) {
+ return false;
+ }
+
+ DebugOnly<Name> name = aHandle.childName();
+ MOZ_ASSERT(!name.inspect().IsVoid());
+
+ QM_TRY_UNWRAP(bool exists, DoesDirectoryExist(mConnection, aHandle));
+
+ if (!exists) {
+ return false;
+ }
+
+ // At this point, entry exists and is a directory.
+ QM_TRY_UNWRAP(EntryId entryId, FindEntryId(mConnection, aHandle, false));
+ MOZ_ASSERT(!entryId.IsEmpty());
+
+ QM_TRY_UNWRAP(bool isEmpty, IsDirectoryEmpty(mConnection, entryId));
+
+ QM_TRY_INSPECT(const nsTArray<EntryId>& descendants,
+ FindDescendants(mConnection, entryId));
+
+ QM_TRY(OkIf(!isAnyDescendantLocked(descendants)),
+ Err(QMResult(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR)));
+
+ if (!aRecursive && !isEmpty) {
+ return Err(QMResult(NS_ERROR_DOM_INVALID_MODIFICATION_ERR));
+ }
+
+ QM_TRY_UNWRAP(Usage usage, GetUsagesOfDescendants(mConnection, entryId));
+
+ nsTArray<EntryId> removeFails;
+ QM_TRY_UNWRAP(DebugOnly<Usage> removedUsage,
+ mFileManager->RemoveFiles(descendants, removeFails));
+
+ // We only check the most common case. This can fail spuriously if an external
+ // application writes to the file, or OS reports zero size due to corruption.
+ MOZ_ASSERT_IF(removeFails.IsEmpty() && (0 == mFilesOfUnknownUsage),
+ usage == removedUsage);
+
+ TryRemoveDuringIdleMaintenance(removeFails);
+
+ if (usage > 0) { // Performance!
+ DecreaseCachedQuotaUsage(usage);
+ }
+
+ QM_TRY(DeleteEntry(mConnection, entryId));
+
+ return true;
+}
+
+Result<bool, QMResult> FileSystemDatabaseManagerVersion001::RemoveFile(
+ const FileSystemChildMetadata& aHandle) {
+ MOZ_ASSERT(!aHandle.parentId().IsEmpty());
+
+ if (aHandle.childName().IsEmpty()) {
+ return false;
+ }
+
+ DebugOnly<Name> name = aHandle.childName();
+ MOZ_ASSERT(!name.inspect().IsVoid());
+
+ // Make it more evident that we won't remove directories
+ QM_TRY_UNWRAP(bool exists, DoesFileExist(mConnection, aHandle));
+
+ if (!exists) {
+ return false;
+ }
+
+ // At this point, entry exists and is a file
+ QM_TRY_UNWRAP(EntryId entryId, FindEntryId(mConnection, aHandle, true));
+ MOZ_ASSERT(!entryId.IsEmpty());
+
+ // XXX This code assumes the spec question is resolved to state
+ // removing an in-use file should fail. If it shouldn't fail, we need to
+ // do something to neuter all the extant FileAccessHandles/WritableFileStreams
+ // that reference it
+ if (mDataManager->IsLocked(entryId)) {
+ LOG(("Trying to remove in-use file"));
+ return Err(QMResult(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR));
+ }
+
+ QM_TRY_UNWRAP(Usage usage, GetKnownUsage(mConnection, entryId));
+ QM_WARNONLY_TRY_UNWRAP(Maybe<Usage> removedUsage,
+ mFileManager->RemoveFile(entryId));
+
+ // We only check the most common case. This can fail spuriously if an external
+ // application writes to the file, or OS reports zero size due to corruption.
+ MOZ_ASSERT_IF(removedUsage && (0 == mFilesOfUnknownUsage),
+ usage == removedUsage.value());
+ if (!removedUsage) {
+ TryRemoveDuringIdleMaintenance({entryId});
+ }
+
+ if (usage > 0) { // Performance!
+ DecreaseCachedQuotaUsage(usage);
+ }
+
+ QM_TRY(DeleteEntry(mConnection, entryId));
+
+ return true;
+}
+
+nsresult FileSystemDatabaseManagerVersion001::ClearDestinationIfNotLocked(
+ const FileSystemConnection& aConnection,
+ const FileSystemDataManager* const aDataManager,
+ const FileSystemEntryMetadata& aHandle,
+ const FileSystemChildMetadata& aNewDesignation) {
+ // If the destination file exists, fail explicitly. Spec author plans to
+ // revise the spec
+ QM_TRY_UNWRAP(bool exists, DoesFileExist(aConnection, aNewDesignation));
+ if (exists) {
+ QM_TRY_INSPECT(const EntryId& destId,
+ FindEntryId(aConnection, aNewDesignation, true));
+ if (aDataManager->IsLocked(destId)) {
+ LOG(("Trying to overwrite in-use file"));
+ return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
+ }
+
+ QM_TRY_UNWRAP(DebugOnly<bool> isRemoved, RemoveFile(aNewDesignation));
+ MOZ_ASSERT(isRemoved);
+ } else {
+ QM_TRY_UNWRAP(exists, DoesDirectoryExist(aConnection, aNewDesignation));
+ if (exists) {
+ // Fails if directory contains locked files, otherwise total wipeout
+ QM_TRY_UNWRAP(DebugOnly<bool> isRemoved,
+ MOZ_TO_RESULT(RemoveDirectory(aNewDesignation,
+ /* recursive */ true)));
+ MOZ_ASSERT(isRemoved);
+ }
+ }
+
+ return NS_OK;
+}
+
+nsresult FileSystemDatabaseManagerVersion001::PrepareMoveEntry(
+ const FileSystemConnection& aConnection,
+ const FileSystemDataManager* const aDataManager,
+ const FileSystemEntryMetadata& aHandle,
+ const FileSystemChildMetadata& aNewDesignation, bool aIsFile) {
+ const EntryId& entryId = aHandle.entryId();
+
+ // At this point, entry exists
+ if (aIsFile && aDataManager->IsLocked(entryId)) {
+ LOG(("Trying to move in-use file"));
+ return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
+ }
+
+ QM_TRY(QM_TO_RESULT(ClearDestinationIfNotLocked(aConnection, aDataManager,
+ aHandle, aNewDesignation)));
+
+ // To prevent cyclic paths, we check that there is no path from
+ // the item to be moved to the destination folder.
+ QM_TRY_UNWRAP(const bool isDestinationUnderSelf,
+ IsAncestor(aConnection, {entryId, aNewDesignation.parentId()}));
+ if (isDestinationUnderSelf) {
+ return NS_ERROR_DOM_INVALID_MODIFICATION_ERR;
+ }
+
+ return NS_OK;
+}
+
+nsresult FileSystemDatabaseManagerVersion001::PrepareRenameEntry(
+ const FileSystemConnection& aConnection,
+ const FileSystemDataManager* const aDataManager,
+ const FileSystemEntryMetadata& aHandle, const Name& aNewName,
+ bool aIsFile) {
+ const EntryId& entryId = aHandle.entryId();
+
+ // At this point, entry exists
+ if (aIsFile && mDataManager->IsLocked(entryId)) {
+ LOG(("Trying to move in-use file"));
+ return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
+ }
+
+ // If the destination file exists, fail explicitly.
+ FileSystemChildMetadata destination;
+ QM_TRY_UNWRAP(EntryId parent, FindParent(mConnection, entryId));
+ destination.parentId() = parent;
+ destination.childName() = aNewName;
+
+ QM_TRY(MOZ_TO_RESULT(ClearDestinationIfNotLocked(mConnection, mDataManager,
+ aHandle, destination)));
+
+ return NS_OK;
+}
+
+Result<bool, QMResult> FileSystemDatabaseManagerVersion001::RenameEntry(
+ const FileSystemEntryMetadata& aHandle, const Name& aNewName) {
+ const auto& entryId = aHandle.entryId();
+
+ // Can't rename root
+ if (mRootEntry == entryId) {
+ return Err(QMResult(NS_ERROR_DOM_NOT_FOUND_ERR));
+ }
+
+ // Verify the source exists
+ QM_TRY_UNWRAP(bool isFile, IsFile(mConnection, entryId),
+ Err(QMResult(NS_ERROR_DOM_NOT_FOUND_ERR)));
+
+ // Are we actually renaming?
+ if (aHandle.entryName() == aNewName) {
+ return true;
+ }
+
+ QM_TRY(QM_TO_RESULT(PrepareRenameEntry(mConnection, mDataManager, aHandle,
+ aNewName, isFile)));
+
+ mozStorageTransaction transaction(
+ mConnection.get(), false, mozIStorageConnection::TRANSACTION_IMMEDIATE);
+
+ if (isFile) {
+ const ContentType type = FileSystemContentTypeGuess::FromPath(aNewName);
+ QM_TRY(
+ QM_TO_RESULT(PerformRenameFile(mConnection, aHandle, aNewName, type)));
+ } else {
+ QM_TRY(
+ QM_TO_RESULT(PerformRenameDirectory(mConnection, aHandle, aNewName)));
+ }
+
+ QM_TRY(QM_TO_RESULT(transaction.Commit()));
+
+ return true;
+}
+
+Result<bool, QMResult> FileSystemDatabaseManagerVersion001::MoveEntry(
+ const FileSystemEntryMetadata& aHandle,
+ const FileSystemChildMetadata& aNewDesignation) {
+ const auto& entryId = aHandle.entryId();
+ MOZ_ASSERT(!entryId.IsEmpty());
+
+ if (mRootEntry == entryId) {
+ return Err(QMResult(NS_ERROR_DOM_NOT_FOUND_ERR));
+ }
+
+ // Verify the source exists
+ QM_TRY_UNWRAP(bool isFile, IsFile(mConnection, entryId),
+ Err(QMResult(NS_ERROR_DOM_NOT_FOUND_ERR)));
+
+ // If the rename doesn't change the name or directory, just return success.
+ // XXX Needs to be added to the spec
+ QM_WARNONLY_TRY_UNWRAP(Maybe<bool> maybeSame,
+ IsSame(mConnection, aHandle, aNewDesignation, isFile));
+ if (maybeSame && maybeSame.value()) {
+ return true;
+ }
+
+ QM_TRY(QM_TO_RESULT(PrepareMoveEntry(mConnection, mDataManager, aHandle,
+ aNewDesignation, isFile)));
+
+ const nsLiteralCString updateEntryParentQuery =
+ "UPDATE Entries "
+ "SET parent = :parent "
+ "WHERE handle = :handle "
+ ";"_ns;
+
+ mozStorageTransaction transaction(
+ mConnection.get(), false, mozIStorageConnection::TRANSACTION_IMMEDIATE);
+
+ {
+ // We always change the parent because it's simpler than checking if the
+ // parent needs to be changed
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(mConnection, updateEntryParentQuery));
+ QM_TRY(QM_TO_RESULT(
+ stmt.BindEntryIdByName("parent"_ns, aNewDesignation.parentId())));
+ QM_TRY(QM_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, entryId)));
+ QM_TRY(QM_TO_RESULT(stmt.Execute()));
+ }
+
+ const Name& newName = aNewDesignation.childName();
+
+ // Are we actually renaming?
+ if (aHandle.entryName() == newName) {
+ QM_TRY(QM_TO_RESULT(transaction.Commit()));
+
+ return true;
+ }
+
+ if (isFile) {
+ const ContentType type = FileSystemContentTypeGuess::FromPath(newName);
+ QM_TRY(
+ QM_TO_RESULT(PerformRenameFile(mConnection, aHandle, newName, type)));
+ } else {
+ QM_TRY(QM_TO_RESULT(PerformRenameDirectory(mConnection, aHandle, newName)));
+ }
+
+ QM_TRY(QM_TO_RESULT(transaction.Commit()));
+
+ return true;
+}
+
+Result<Path, QMResult> FileSystemDatabaseManagerVersion001::Resolve(
+ const FileSystemEntryPair& aEndpoints) const {
+ QM_TRY_UNWRAP(Path path, ResolveReversedPath(mConnection, aEndpoints));
+ // Note: if not an ancestor, returns null
+
+ path.Reverse();
+ return path;
+}
+
+void FileSystemDatabaseManagerVersion001::Close() { mConnection->Close(); }
+
+void FileSystemDatabaseManagerVersion001::DecreaseCachedQuotaUsage(
+ int64_t aDelta) {
+ quota::QuotaManager* quotaManager = quota::QuotaManager::Get();
+ MOZ_ASSERT(quotaManager);
+
+ quotaManager->DecreaseUsageForClient(mClientMetadata, aDelta);
+}
+
+} // namespace fs::data
+
+} // namespace mozilla::dom
diff --git a/dom/fs/parent/datamodel/FileSystemDatabaseManagerVersion001.h b/dom/fs/parent/datamodel/FileSystemDatabaseManagerVersion001.h
new file mode 100644
index 0000000000..d15e4f5cc9
--- /dev/null
+++ b/dom/fs/parent/datamodel/FileSystemDatabaseManagerVersion001.h
@@ -0,0 +1,137 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_DATAMODEL_FILESYSTEMDATABASEMANAGERVERSION001_H_
+#define DOM_FS_PARENT_DATAMODEL_FILESYSTEMDATABASEMANAGERVERSION001_H_
+
+#include "FileSystemDatabaseManager.h"
+#include "mozilla/dom/quota/CommonMetadata.h"
+#include "nsString.h"
+
+namespace mozilla::dom::fs::data {
+
+class FileSystemDataManager;
+class FileSystemFileManager;
+using FileSystemConnection = fs::ResultConnection;
+
+/**
+ * @brief Versioned implementation of database interface enables backwards
+ * support after the schema has changed. Version number 0 refers to
+ * uninitialized database, and versions after that are sequential upgrades.
+ *
+ * To change the schema to the next version x,
+ * - a new implementation FileSystemDatabaseManagerVersion00x is derived from
+ * the previous version and the required methods are overridden
+ * - a new apppropriate schema initialization class SchemaVersion00x is created
+ * or derived
+ * - the factory method of FileSystemDatabaseManager is extended to try to
+ * migrate the data from the previous version to version x, and to return
+ * FileSystemDatabaseManagerVersion00x implementation if the database version
+ * after the migrations is x
+ * - note that if the migration fails at some old version, the corresponding
+ * old implementation should be returned: this way the users whose migrations
+ * fail systematically due to hardware or other issues will not get locked out
+ */
+class FileSystemDatabaseManagerVersion001 : public FileSystemDatabaseManager {
+ public:
+ FileSystemDatabaseManagerVersion001(
+ FileSystemDataManager* aDataManager, FileSystemConnection&& aConnection,
+ UniquePtr<FileSystemFileManager>&& aFileManager,
+ const EntryId& aRootEntry);
+
+ /* Static to allow use by quota client without instantiation */
+ static nsresult RescanTrackedUsages(
+ const FileSystemConnection& aConnection,
+ const quota::OriginMetadata& aOriginMetadata);
+
+ /* Static to allow use by quota client without instantiation */
+ static Result<Usage, QMResult> GetFileUsage(
+ const FileSystemConnection& aConnection);
+
+ virtual nsresult UpdateUsage(const EntryId& aEntry) override;
+
+ virtual Result<EntryId, QMResult> GetOrCreateDirectory(
+ const FileSystemChildMetadata& aHandle, bool aCreate) override;
+
+ virtual Result<EntryId, QMResult> GetOrCreateFile(
+ const FileSystemChildMetadata& aHandle, const ContentType& aType,
+ bool aCreate) override;
+
+ virtual nsresult GetFile(const EntryId& aEntryId, ContentType& aType,
+ TimeStamp& lastModifiedMilliSeconds, Path& aPath,
+ nsCOMPtr<nsIFile>& aFile) const override;
+
+ virtual Result<FileSystemDirectoryListing, QMResult> GetDirectoryEntries(
+ const EntryId& aParent, PageNumber aPage) const override;
+
+ virtual Result<bool, QMResult> RenameEntry(
+ const FileSystemEntryMetadata& aHandle, const Name& aNewName) override;
+
+ virtual Result<bool, QMResult> MoveEntry(
+ const FileSystemEntryMetadata& aHandle,
+ const FileSystemChildMetadata& aNewDesignation) override;
+
+ virtual Result<bool, QMResult> RemoveDirectory(
+ const FileSystemChildMetadata& aHandle, bool aRecursive) override;
+
+ virtual Result<bool, QMResult> RemoveFile(
+ const FileSystemChildMetadata& aHandle) override;
+
+ virtual Result<Path, QMResult> Resolve(
+ const FileSystemEntryPair& aEndpoints) const override;
+
+ virtual void Close() override;
+
+ virtual nsresult BeginUsageTracking(const EntryId& aEntryId) override;
+
+ virtual nsresult EndUsageTracking(const EntryId& aEntryId) override;
+
+ virtual ~FileSystemDatabaseManagerVersion001() = default;
+
+ private:
+ nsresult UpdateUsageInDatabase(const EntryId& aEntry, Usage aNewDiskUsage);
+
+ Result<Ok, QMResult> EnsureUsageIsKnown(const EntryId& aEntryId);
+
+ void DecreaseCachedQuotaUsage(int64_t aDelta);
+
+ nsresult UpdateCachedQuotaUsage(const EntryId& aEntryId, Usage aOldUsage,
+ Usage aNewUsage);
+
+ nsresult ClearDestinationIfNotLocked(
+ const FileSystemConnection& aConnection,
+ const FileSystemDataManager* const aDataManager,
+ const FileSystemEntryMetadata& aHandle,
+ const FileSystemChildMetadata& aNewDesignation);
+
+ nsresult PrepareMoveEntry(const FileSystemConnection& aConnection,
+ const FileSystemDataManager* const aDataManager,
+ const FileSystemEntryMetadata& aHandle,
+ const FileSystemChildMetadata& aNewDesignation,
+ bool aIsFile);
+
+ nsresult PrepareRenameEntry(const FileSystemConnection& aConnection,
+ const FileSystemDataManager* const aDataManager,
+ const FileSystemEntryMetadata& aHandle,
+ const Name& aNewName, bool aIsFile);
+
+ // This is a raw pointer since we're owned by the FileSystemDataManager.
+ FileSystemDataManager* MOZ_NON_OWNING_REF mDataManager;
+
+ FileSystemConnection mConnection;
+
+ UniquePtr<FileSystemFileManager> mFileManager;
+
+ const EntryId mRootEntry;
+
+ const quota::ClientMetadata mClientMetadata;
+
+ int32_t mFilesOfUnknownUsage;
+};
+
+} // namespace mozilla::dom::fs::data
+
+#endif // DOM_FS_PARENT_DATAMODEL_FILESYSTEMDATABASEMANAGERVERSION001_H_
diff --git a/dom/fs/parent/datamodel/FileSystemFileManager.cpp b/dom/fs/parent/datamodel/FileSystemFileManager.cpp
new file mode 100644
index 0000000000..c43ee67ae5
--- /dev/null
+++ b/dom/fs/parent/datamodel/FileSystemFileManager.cpp
@@ -0,0 +1,358 @@
+/* -*- 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 "FileSystemFileManager.h"
+
+#include "FileSystemDataManager.h"
+#include "FileSystemHashSource.h"
+#include "mozilla/Assertions.h"
+#include "mozilla/NotNull.h"
+#include "mozilla/Result.h"
+#include "mozilla/ResultVariant.h"
+#include "mozilla/Unused.h"
+#include "mozilla/dom/quota/QuotaManager.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+#include "nsCOMPtr.h"
+#include "nsHashKeys.h"
+#include "nsIFile.h"
+#include "nsIFileProtocolHandler.h"
+#include "nsIFileURL.h"
+#include "nsIURIMutator.h"
+#include "nsTHashMap.h"
+#include "nsXPCOM.h"
+
+namespace mozilla::dom::fs::data {
+
+namespace {
+
+constexpr nsLiteralString kDatabaseFileName = u"metadata.sqlite"_ns;
+
+Result<nsCOMPtr<nsIFile>, QMResult> GetFileDestination(
+ const nsCOMPtr<nsIFile>& aTopDirectory, const EntryId& aEntryId) {
+ MOZ_ASSERT(32u == aEntryId.Length());
+
+ nsCOMPtr<nsIFile> destination;
+
+ // nsIFile Clone is not a constant method
+ QM_TRY(QM_TO_RESULT(aTopDirectory->Clone(getter_AddRefs(destination))));
+
+ QM_TRY_UNWRAP(Name encoded, FileSystemHashSource::EncodeHash(aEntryId));
+
+ MOZ_ALWAYS_TRUE(IsAscii(encoded));
+
+ nsString relativePath;
+ relativePath.Append(Substring(encoded, 0, 2));
+
+ QM_TRY(QM_TO_RESULT(destination->AppendRelativePath(relativePath)));
+
+ QM_TRY(QM_TO_RESULT(destination->AppendRelativePath(encoded)));
+
+ return destination;
+}
+
+Result<nsCOMPtr<nsIFile>, QMResult> GetOrCreateFileImpl(
+ const nsAString& aFilePath) {
+ MOZ_ASSERT(!aFilePath.IsEmpty());
+
+ nsCOMPtr<nsIFile> result;
+ QM_TRY(QM_TO_RESULT(NS_NewLocalFile(aFilePath,
+ /* aFollowLinks */ false,
+ getter_AddRefs(result))));
+
+ bool exists = true;
+ QM_TRY(QM_TO_RESULT(result->Exists(&exists)));
+
+ if (!exists) {
+ QM_TRY(QM_TO_RESULT(result->Create(nsIFile::NORMAL_FILE_TYPE, 0644)));
+
+ return result;
+ }
+
+ bool isDirectory = true;
+ QM_TRY(QM_TO_RESULT(result->IsDirectory(&isDirectory)));
+ QM_TRY(OkIf(!isDirectory), Err(QMResult(NS_ERROR_FILE_IS_DIRECTORY)));
+
+ return result;
+}
+
+Result<nsCOMPtr<nsIFile>, QMResult> GetFile(
+ const nsCOMPtr<nsIFile>& aTopDirectory, const EntryId& aEntryId) {
+ MOZ_ASSERT(!aEntryId.IsEmpty());
+
+ QM_TRY_UNWRAP(nsCOMPtr<nsIFile> pathObject,
+ GetFileDestination(aTopDirectory, aEntryId));
+
+ nsString desiredPath;
+ QM_TRY(QM_TO_RESULT(pathObject->GetPath(desiredPath)));
+
+ nsCOMPtr<nsIFile> result;
+ QM_TRY(QM_TO_RESULT(NS_NewLocalFile(desiredPath,
+ /* aFollowLinks */ false,
+ getter_AddRefs(result))));
+
+ return result;
+}
+
+Result<nsCOMPtr<nsIFile>, QMResult> GetOrCreateFile(
+ const nsCOMPtr<nsIFile>& aTopDirectory, const EntryId& aEntryId) {
+ MOZ_ASSERT(!aEntryId.IsEmpty());
+
+ QM_TRY_UNWRAP(nsCOMPtr<nsIFile> pathObject,
+ GetFileDestination(aTopDirectory, aEntryId));
+
+ nsString desiredPath;
+ QM_TRY(QM_TO_RESULT(pathObject->GetPath(desiredPath)));
+
+ QM_TRY_UNWRAP(nsCOMPtr<nsIFile> result, GetOrCreateFileImpl(desiredPath));
+
+ return result;
+}
+
+nsresult RemoveFileObject(const nsCOMPtr<nsIFile>& aFilePtr) {
+ // If we cannot tell whether the object is file or directory, or it is a
+ // directory, it is abandoned as an unknown object. If an attempt is made to
+ // create a new object with the same path on disk, we regenerate the entryId
+ // until the collision is resolved.
+
+ bool isFile = false;
+ QM_TRY(MOZ_TO_RESULT(aFilePtr->IsFile(&isFile)));
+
+ QM_TRY(OkIf(isFile), NS_ERROR_FILE_IS_DIRECTORY);
+
+ QM_TRY(QM_TO_RESULT(aFilePtr->Remove(/* recursive */ false)));
+
+ return NS_OK;
+}
+
+#ifdef DEBUG
+// Unused in release builds
+Result<Usage, QMResult> GetFileSize(const nsCOMPtr<nsIFile>& aFileObject) {
+ bool exists = false;
+ QM_TRY(QM_TO_RESULT(aFileObject->Exists(&exists)));
+
+ if (!exists) {
+ return 0;
+ }
+
+ bool isFile = false;
+ QM_TRY(QM_TO_RESULT(aFileObject->IsFile(&isFile)));
+
+ // We never create directories with this path: this is an unknown object
+ // and the file does not exist
+ QM_TRY(OkIf(isFile), 0);
+
+ QM_TRY_UNWRAP(Usage fileSize,
+ QM_TO_RESULT_INVOKE_MEMBER(aFileObject, GetFileSize));
+
+ return fileSize;
+}
+#endif
+
+} // namespace
+
+Result<nsCOMPtr<nsIFile>, QMResult> GetFileSystemDirectory(
+ const quota::OriginMetadata& aOriginMetadata) {
+ MOZ_ASSERT(aOriginMetadata.mPersistenceType ==
+ quota::PERSISTENCE_TYPE_DEFAULT);
+
+ quota::QuotaManager* quotaManager = quota::QuotaManager::Get();
+ MOZ_ASSERT(quotaManager);
+
+ QM_TRY_UNWRAP(nsCOMPtr<nsIFile> fileSystemDirectory,
+ QM_TO_RESULT_TRANSFORM(
+ quotaManager->GetOriginDirectory(aOriginMetadata)));
+
+ QM_TRY(QM_TO_RESULT(fileSystemDirectory->AppendRelativePath(
+ NS_LITERAL_STRING_FROM_CSTRING(FILESYSTEM_DIRECTORY_NAME))));
+
+ return fileSystemDirectory;
+}
+
+nsresult EnsureFileSystemDirectory(
+ const quota::OriginMetadata& aOriginMetadata) {
+ quota::QuotaManager* quotaManager = quota::QuotaManager::Get();
+ MOZ_ASSERT(quotaManager);
+
+ QM_TRY(MOZ_TO_RESULT(quotaManager->EnsureStorageIsInitialized()));
+
+ QM_TRY(MOZ_TO_RESULT(quotaManager->EnsureTemporaryStorageIsInitialized()));
+
+ QM_TRY_INSPECT(const auto& fileSystemDirectory,
+ quotaManager
+ ->EnsureTemporaryOriginIsInitialized(
+ quota::PERSISTENCE_TYPE_DEFAULT, aOriginMetadata)
+ .map([](const auto& aPair) { return aPair.first; }));
+
+ QM_TRY(QM_TO_RESULT(fileSystemDirectory->AppendRelativePath(
+ NS_LITERAL_STRING_FROM_CSTRING(FILESYSTEM_DIRECTORY_NAME))));
+
+ bool exists = true;
+ QM_TRY(QM_TO_RESULT(fileSystemDirectory->Exists(&exists)));
+
+ if (!exists) {
+ QM_TRY(QM_TO_RESULT(
+ fileSystemDirectory->Create(nsIFile::DIRECTORY_TYPE, 0755)));
+
+ return NS_OK;
+ }
+
+ bool isDirectory = true;
+ QM_TRY(QM_TO_RESULT(fileSystemDirectory->IsDirectory(&isDirectory)));
+ QM_TRY(OkIf(isDirectory), NS_ERROR_FILE_NOT_DIRECTORY);
+
+ return NS_OK;
+}
+
+Result<nsCOMPtr<nsIFile>, QMResult> GetDatabaseFile(
+ const quota::OriginMetadata& aOriginMetadata) {
+ MOZ_ASSERT(!aOriginMetadata.mOrigin.IsEmpty());
+
+ QM_TRY_UNWRAP(nsCOMPtr<nsIFile> databaseFile,
+ GetFileSystemDirectory(aOriginMetadata));
+
+ QM_TRY(QM_TO_RESULT(databaseFile->AppendRelativePath(kDatabaseFileName)));
+
+ return databaseFile;
+}
+
+/**
+ * TODO: This is almost identical to the corresponding function of IndexedDB
+ */
+Result<nsCOMPtr<nsIFileURL>, QMResult> GetDatabaseFileURL(
+ const quota::OriginMetadata& aOriginMetadata,
+ const int64_t aDirectoryLockId) {
+ MOZ_ASSERT(aDirectoryLockId >= 0);
+
+ QM_TRY_UNWRAP(nsCOMPtr<nsIFile> databaseFile,
+ GetDatabaseFile(aOriginMetadata));
+
+ QM_TRY_INSPECT(
+ const auto& protocolHandler,
+ QM_TO_RESULT_TRANSFORM(MOZ_TO_RESULT_GET_TYPED(
+ nsCOMPtr<nsIProtocolHandler>, MOZ_SELECT_OVERLOAD(do_GetService),
+ NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "file")));
+
+ QM_TRY_INSPECT(const auto& fileHandler,
+ QM_TO_RESULT_TRANSFORM(MOZ_TO_RESULT_GET_TYPED(
+ nsCOMPtr<nsIFileProtocolHandler>,
+ MOZ_SELECT_OVERLOAD(do_QueryInterface), protocolHandler)));
+
+ QM_TRY_INSPECT(const auto& mutator,
+ QM_TO_RESULT_TRANSFORM(MOZ_TO_RESULT_INVOKE_MEMBER_TYPED(
+ nsCOMPtr<nsIURIMutator>, fileHandler, NewFileURIMutator,
+ databaseFile)));
+
+ nsCString directoryLockIdClause = "&directoryLockId="_ns;
+ directoryLockIdClause.AppendInt(aDirectoryLockId);
+
+ nsCOMPtr<nsIFileURL> result;
+ QM_TRY(QM_TO_RESULT(
+ NS_MutateURI(mutator).SetQuery(directoryLockIdClause).Finalize(result)));
+
+ return result;
+}
+
+/* static */
+Result<FileSystemFileManager, QMResult>
+FileSystemFileManager::CreateFileSystemFileManager(
+ nsCOMPtr<nsIFile>&& topDirectory) {
+ return FileSystemFileManager(std::move(topDirectory));
+}
+
+/* static */
+Result<FileSystemFileManager, QMResult>
+FileSystemFileManager::CreateFileSystemFileManager(
+ const quota::OriginMetadata& aOriginMetadata) {
+ QM_TRY_UNWRAP(nsCOMPtr<nsIFile> topDirectory,
+ GetFileSystemDirectory(aOriginMetadata));
+
+ return FileSystemFileManager(std::move(topDirectory));
+}
+
+FileSystemFileManager::FileSystemFileManager(nsCOMPtr<nsIFile>&& aTopDirectory)
+ : mTopDirectory(std::move(aTopDirectory)) {}
+
+Result<nsCOMPtr<nsIFile>, QMResult> FileSystemFileManager::GetFile(
+ const EntryId& aEntryId) const {
+ return data::GetFile(mTopDirectory, aEntryId);
+}
+
+Result<nsCOMPtr<nsIFile>, QMResult> FileSystemFileManager::GetOrCreateFile(
+ const EntryId& aEntryId) {
+ return data::GetOrCreateFile(mTopDirectory, aEntryId);
+}
+
+Result<Usage, QMResult> FileSystemFileManager::RemoveFile(
+ const EntryId& aEntryId) {
+ MOZ_ASSERT(!aEntryId.IsEmpty());
+ QM_TRY_UNWRAP(nsCOMPtr<nsIFile> pathObject,
+ GetFileDestination(mTopDirectory, aEntryId));
+
+ bool exists = false;
+ QM_TRY(QM_TO_RESULT(pathObject->Exists(&exists)));
+
+ if (!exists) {
+ return 0;
+ }
+
+ bool isFile = false;
+ QM_TRY(QM_TO_RESULT(pathObject->IsFile(&isFile)));
+
+ // We could handle this also as a nonexistent file.
+ if (!isFile) {
+ return Err(QMResult(NS_ERROR_FILE_IS_DIRECTORY));
+ }
+
+ Usage totalUsage = 0;
+#ifdef DEBUG
+ QM_TRY_UNWRAP(totalUsage,
+ QM_TO_RESULT_INVOKE_MEMBER(pathObject, GetFileSize));
+#endif
+
+ QM_TRY(QM_TO_RESULT(pathObject->Remove(/* recursive */ false)));
+
+ return totalUsage;
+}
+
+Result<DebugOnly<Usage>, QMResult> FileSystemFileManager::RemoveFiles(
+ const nsTArray<EntryId>& aEntryIds, nsTArray<EntryId>& aRemoveFails) {
+ if (aEntryIds.IsEmpty()) {
+ return DebugOnly<Usage>(0);
+ }
+
+ CheckedInt64 totalUsage = 0;
+ for (const auto& entryId : aEntryIds) {
+ QM_WARNONLY_TRY_UNWRAP(Maybe<nsCOMPtr<nsIFile>> maybeFile,
+ GetFileDestination(mTopDirectory, entryId));
+ if (!maybeFile) {
+ aRemoveFails.AppendElement(entryId);
+ continue;
+ }
+ nsCOMPtr<nsIFile> fileObject = maybeFile.value();
+
+// Size recorded at close is checked to be equal to the sum of sizes on disk
+#ifdef DEBUG
+ QM_WARNONLY_TRY_UNWRAP(Maybe<Usage> fileSize, GetFileSize(fileObject));
+ if (!fileSize) {
+ aRemoveFails.AppendElement(entryId);
+ continue;
+ }
+ totalUsage += fileSize.value();
+#endif
+
+ QM_WARNONLY_TRY_UNWRAP(Maybe<Ok> ok,
+ MOZ_TO_RESULT(RemoveFileObject(fileObject)));
+ if (!ok) {
+ aRemoveFails.AppendElement(entryId);
+ }
+ }
+
+ MOZ_ASSERT(totalUsage.isValid());
+
+ return DebugOnly<Usage>(totalUsage.value());
+}
+
+} // namespace mozilla::dom::fs::data
diff --git a/dom/fs/parent/datamodel/FileSystemFileManager.h b/dom/fs/parent/datamodel/FileSystemFileManager.h
new file mode 100644
index 0000000000..19e7ba5b16
--- /dev/null
+++ b/dom/fs/parent/datamodel/FileSystemFileManager.h
@@ -0,0 +1,159 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_DATAMODEL_FILESYSTEMFILEMANAGER_H_
+#define DOM_FS_PARENT_DATAMODEL_FILESYSTEMFILEMANAGER_H_
+
+#include "ErrorList.h"
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/QMResult.h"
+#include "nsIFile.h"
+#include "nsString.h"
+
+template <class T>
+class nsCOMPtr;
+
+class nsIFileURL;
+
+namespace mozilla::dom {
+
+namespace quota {
+
+struct OriginMetadata;
+
+} // namespace quota
+
+namespace fs::data {
+
+/**
+ * @brief Get the directory for file system items of specified origin.
+ * Use this instead of constructing the path from quota manager's storage path.
+ *
+ * @param aOrigin Specified origin
+ * @return Result<nsCOMPtr<nsIFile>, QMResult> Top file system directory
+ */
+Result<nsCOMPtr<nsIFile>, QMResult> GetFileSystemDirectory(
+ const quota::OriginMetadata& aOriginMetadata);
+
+/**
+ * @brief Ensure that the origin-specific directory for file system exists.
+ *
+ * @param aOriginMetadata Specified origin metadata
+ * @return nsresult Error if operation failed
+ */
+nsresult EnsureFileSystemDirectory(
+ const quota::OriginMetadata& aOriginMetadata);
+
+/**
+ * @brief Get file system's database path for specified origin.
+ * Use this to get the database path instead of constructing it from
+ * quota manager's storage path - without the side effect of potentially
+ * creating it.
+ *
+ * @param aOrigin Specified origin
+ * @return Result<nsCOMPtr<nsIFile>, QMResult> Database file object
+ */
+Result<nsCOMPtr<nsIFile>, QMResult> GetDatabaseFile(
+ const quota::OriginMetadata& aOriginMetadata);
+
+/**
+ * @brief Get file system's database url with directory lock parameter for
+ * specified origin. Use this to open a database connection and have the quota
+ * manager guard against its deletion or busy errors due to other connections.
+ *
+ * @param aOrigin Specified origin
+ * @param aDirectoryLockId Directory lock id from the quota manager
+ * @return Result<nsCOMPtr<nsIFileURL>, QMResult> Database file URL object
+ */
+Result<nsCOMPtr<nsIFileURL>, QMResult> GetDatabaseFileURL(
+ const quota::OriginMetadata& aOriginMetadata,
+ const int64_t aDirectoryLockId);
+
+/**
+ * @brief Creates and removes disk-backed representations of the file systems'
+ * file entries for a specified origin.
+ *
+ * Other components should not depend on how the files are organized on disk
+ * but instead rely on the entry id and have access to the local file using the
+ * GetOrCreateFile result.
+ *
+ * The local paths are not necessarily stable in the long term and if they
+ * absolutely must be cached, there should be a way to repopulate the cache
+ * after an internal reorganization of the file entry represenations on disk,
+ * for some currently unforeseen maintenance reason.
+ *
+ * Example: if GetOrCreateFile used to map entryId 'abc' to path '/c/u/1/123'
+ * and now it maps it to '/d/u/1/12/123', the cache should either update all
+ * paths at once through a migration, or purge them and save a new value
+ * whenever a call to GetOrCreateFile is made.
+ */
+class FileSystemFileManager {
+ public:
+ /**
+ * @brief Create a File System File Manager object for a specified origin.
+ *
+ * @param aOrigin
+ * @return Result<FileSystemFileManager, QMResult>
+ */
+ static Result<FileSystemFileManager, QMResult> CreateFileSystemFileManager(
+ const quota::OriginMetadata& aOriginMetadata);
+
+ /**
+ * @brief Create a File System File Manager object which keeps file entries
+ * under a specified directory instead of quota manager's storage path.
+ * This should only be used for testing and preferably removed.
+ *
+ * @param topDirectory
+ * @return Result<FileSystemFileManager, QMResult>
+ */
+ static Result<FileSystemFileManager, QMResult> CreateFileSystemFileManager(
+ nsCOMPtr<nsIFile>&& topDirectory);
+
+ /**
+ * @brief Get a file object for a specified entry id. If a file for the entry
+ * does not exist, returns an appropriate error.
+ *
+ * @param aEntryId Specified id of a file system entry
+ * @return Result<nsCOMPtr<nsIFile>, QMResult> File or error.
+ */
+ Result<nsCOMPtr<nsIFile>, QMResult> GetFile(const EntryId& aEntryId) const;
+
+ /**
+ * @brief Get or create a disk-backed file object for a specified entry id.
+ *
+ * @param aEntryId Specified id of a file system entry
+ * @return Result<nsCOMPtr<nsIFile>, QMResult> File abstraction or IO error
+ */
+ Result<nsCOMPtr<nsIFile>, QMResult> GetOrCreateFile(const EntryId& aEntryId);
+
+ /**
+ * @brief Remove the disk-backed file object for a specified entry id.
+ * Note: The returned value is 0 in release builds.
+ *
+ * @param aEntryId Specified id of a file system entry
+ * @return Result<Usage, QMResult> Error or file size
+ */
+ Result<Usage, QMResult> RemoveFile(const EntryId& aEntryId);
+
+ /**
+ * @brief This method can be used to try to delete a group of files from the
+ * disk. In debug builds, the sum of the usages is provided ad return value,
+ * in release builds the sum is not calculated.
+ * The method attempts to remove all the files requested.
+ */
+ Result<DebugOnly<Usage>, QMResult> RemoveFiles(
+ const nsTArray<EntryId>& aEntryIds, nsTArray<EntryId>& aRemoveFails);
+
+ private:
+ explicit FileSystemFileManager(nsCOMPtr<nsIFile>&& aTopDirectory);
+
+ nsCOMPtr<nsIFile> mTopDirectory;
+};
+
+} // namespace fs::data
+} // namespace mozilla::dom
+
+#endif // DOM_FS_PARENT_DATAMODEL_FILESYSTEMFILEMANAGER_H_
diff --git a/dom/fs/parent/datamodel/SchemaVersion001.cpp b/dom/fs/parent/datamodel/SchemaVersion001.cpp
new file mode 100644
index 0000000000..c3bb9d216b
--- /dev/null
+++ b/dom/fs/parent/datamodel/SchemaVersion001.cpp
@@ -0,0 +1,185 @@
+/* -*- 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 "SchemaVersion001.h"
+
+#include "FileSystemHashSource.h"
+#include "ResultStatement.h"
+#include "fs/FileSystemConstants.h"
+#include "mozStorageHelper.h"
+#include "mozilla/dom/quota/QuotaCommon.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+
+namespace mozilla::dom::fs {
+
+namespace {
+
+nsresult SetEncoding(ResultConnection& aConn) {
+ return aConn->ExecuteSimpleSQL(R"(PRAGMA encoding = "UTF-16";)"_ns);
+}
+
+nsresult CreateEntries(ResultConnection& aConn) {
+ return aConn->ExecuteSimpleSQL(
+ "CREATE TABLE IF NOT EXISTS Entries ( "
+ "handle BLOB PRIMARY KEY, " // Generated from parent + name, unique
+ "parent BLOB, " // Not null due to constraint
+ "CONSTRAINT parent_is_a_directory "
+ "FOREIGN KEY (parent) "
+ "REFERENCES Directories (handle) "
+ "ON DELETE CASCADE ) "
+ ";"_ns);
+}
+
+nsresult CreateDirectories(ResultConnection& aConn) {
+ return aConn->ExecuteSimpleSQL(
+ "CREATE TABLE IF NOT EXISTS Directories ( "
+ "handle BLOB PRIMARY KEY, "
+ "name BLOB NOT NULL, "
+ "CONSTRAINT directories_are_entries "
+ "FOREIGN KEY (handle) "
+ "REFERENCES Entries (handle) "
+ "ON DELETE CASCADE ) "
+ ";"_ns);
+}
+
+nsresult CreateFiles(ResultConnection& aConn) {
+ return aConn->ExecuteSimpleSQL(
+ "CREATE TABLE IF NOT EXISTS Files ( "
+ "handle BLOB PRIMARY KEY, "
+ "type TEXT, "
+ "name BLOB NOT NULL, "
+ "CONSTRAINT files_are_entries "
+ "FOREIGN KEY (handle) "
+ "REFERENCES Entries (handle) "
+ "ON DELETE CASCADE ) "
+ ";"_ns);
+}
+
+nsresult CreateUsages(ResultConnection& aConn) {
+ return aConn->ExecuteSimpleSQL(
+ "CREATE TABLE IF NOT EXISTS Usages ( "
+ "handle BLOB PRIMARY KEY, "
+ "usage INTEGER NOT NULL DEFAULT 0, "
+ "tracked BOOLEAN NOT NULL DEFAULT 0 CHECK (tracked IN (0, 1)), "
+ "CONSTRAINT handles_are_files "
+ "FOREIGN KEY (handle) "
+ "REFERENCES Files (handle) "
+ "ON DELETE CASCADE ) "
+ ";"_ns);
+}
+
+class KeepForeignKeysOffUntilScopeExit final {
+ public:
+ explicit KeepForeignKeysOffUntilScopeExit(const ResultConnection& aConn)
+ : mConn(aConn) {}
+
+ static Result<KeepForeignKeysOffUntilScopeExit, QMResult> Create(
+ const ResultConnection& aConn) {
+ QM_TRY(
+ QM_TO_RESULT(aConn->ExecuteSimpleSQL("PRAGMA foreign_keys = OFF;"_ns)));
+ KeepForeignKeysOffUntilScopeExit result(aConn);
+ return result;
+ }
+
+ ~KeepForeignKeysOffUntilScopeExit() {
+ auto maskResult = [this]() -> Result<Ok, nsresult> {
+ QM_TRY(MOZ_TO_RESULT(
+ mConn->ExecuteSimpleSQL("PRAGMA foreign_keys = ON;"_ns)));
+
+ return Ok{};
+ };
+ QM_WARNONLY_TRY(maskResult());
+ }
+
+ private:
+ ResultConnection mConn;
+};
+
+nsresult CreateRootEntry(ResultConnection& aConn, const Origin& aOrigin) {
+ KeepForeignKeysOffUntilScopeExit foreignKeysGuard(aConn);
+
+ const nsLiteralCString createRootQuery =
+ "INSERT OR IGNORE INTO Entries "
+ "( handle, parent ) "
+ "VALUES ( :handle, NULL );"_ns;
+
+ const nsLiteralCString flagRootAsDirectoryQuery =
+ "INSERT OR IGNORE INTO Directories "
+ "( handle, name ) "
+ "VALUES ( :handle, :name );"_ns;
+
+ QM_TRY_UNWRAP(EntryId rootId,
+ data::FileSystemHashSource::GenerateHash(aOrigin, kRootString));
+
+ mozStorageTransaction transaction(
+ aConn.get(), false, mozIStorageConnection::TRANSACTION_IMMEDIATE);
+
+ {
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConn, createRootQuery));
+ QM_TRY(MOZ_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, rootId)));
+ QM_TRY(MOZ_TO_RESULT(stmt.Execute()));
+ }
+
+ {
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConn, flagRootAsDirectoryQuery));
+ QM_TRY(MOZ_TO_RESULT(stmt.BindEntryIdByName("handle"_ns, rootId)));
+ QM_TRY(MOZ_TO_RESULT(stmt.BindNameByName("name"_ns, kRootString)));
+ QM_TRY(MOZ_TO_RESULT(stmt.Execute()));
+ }
+
+ return transaction.Commit();
+}
+
+Result<bool, QMResult> CheckIfEmpty(ResultConnection& aConn) {
+ const nsLiteralCString areThereTablesQuery =
+ "SELECT EXISTS ("
+ "SELECT 1 FROM sqlite_master "
+ ");"_ns;
+
+ QM_TRY_UNWRAP(ResultStatement stmt,
+ ResultStatement::Create(aConn, areThereTablesQuery));
+
+ return stmt.YesOrNoQuery();
+};
+
+} // namespace
+
+Result<DatabaseVersion, QMResult> SchemaVersion001::InitializeConnection(
+ ResultConnection& aConn, const Origin& aOrigin) {
+ QM_TRY_UNWRAP(bool isEmpty, CheckIfEmpty(aConn));
+
+ DatabaseVersion currentVersion = 0;
+
+ if (isEmpty) {
+ QM_TRY(QM_TO_RESULT(SetEncoding(aConn)));
+ } else {
+ QM_TRY(QM_TO_RESULT(aConn->GetSchemaVersion(&currentVersion)));
+ }
+
+ if (currentVersion < sVersion) {
+ mozStorageTransaction transaction(
+ aConn.get(),
+ /* commit on complete */ false,
+ mozIStorageConnection::TRANSACTION_IMMEDIATE);
+
+ QM_TRY(QM_TO_RESULT(CreateEntries(aConn)));
+ QM_TRY(QM_TO_RESULT(CreateDirectories(aConn)));
+ QM_TRY(QM_TO_RESULT(CreateFiles(aConn)));
+ QM_TRY(QM_TO_RESULT(CreateUsages(aConn)));
+ QM_TRY(QM_TO_RESULT(CreateRootEntry(aConn, aOrigin)));
+ QM_TRY(QM_TO_RESULT(aConn->SetSchemaVersion(sVersion)));
+
+ QM_TRY(QM_TO_RESULT(transaction.Commit()));
+ }
+
+ QM_TRY(QM_TO_RESULT(aConn->GetSchemaVersion(&currentVersion)));
+
+ return currentVersion;
+}
+
+} // namespace mozilla::dom::fs
diff --git a/dom/fs/parent/datamodel/SchemaVersion001.h b/dom/fs/parent/datamodel/SchemaVersion001.h
new file mode 100644
index 0000000000..606cada50d
--- /dev/null
+++ b/dom/fs/parent/datamodel/SchemaVersion001.h
@@ -0,0 +1,25 @@
+/* -*- 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/. */
+
+#ifndef DOM_FS_PARENT_DATAMODEL_SCHEMAVERSION001_H_
+#define DOM_FS_PARENT_DATAMODEL_SCHEMAVERSION001_H_
+
+#include "ResultConnection.h"
+#include "mozilla/dom/FileSystemTypes.h"
+#include "mozilla/dom/quota/ForwardDecls.h"
+
+namespace mozilla::dom::fs {
+
+struct SchemaVersion001 {
+ static Result<DatabaseVersion, QMResult> InitializeConnection(
+ ResultConnection& aConn, const Origin& aOrigin);
+
+ static const DatabaseVersion sVersion = 1;
+};
+
+} // namespace mozilla::dom::fs
+
+#endif // DOM_FS_PARENT_DATAMODEL_SCHEMAVERSION001_H_
diff --git a/dom/fs/parent/datamodel/moz.build b/dom/fs/parent/datamodel/moz.build
new file mode 100644
index 0000000000..111a793722
--- /dev/null
+++ b/dom/fs/parent/datamodel/moz.build
@@ -0,0 +1,26 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+EXPORTS.mozilla.dom += [
+ "FileSystemDataManager.h",
+]
+
+UNIFIED_SOURCES += [
+ "FileSystemDatabaseManager.cpp",
+ "FileSystemDatabaseManagerVersion001.cpp",
+ "FileSystemDataManager.cpp",
+ "FileSystemFileManager.cpp",
+ "SchemaVersion001.cpp",
+]
+
+LOCAL_INCLUDES += [
+ "/dom/fs/include",
+ "/dom/fs/parent",
+]
+
+include("/ipc/chromium/chromium-config.mozbuild")
+
+FINAL_LIBRARY = "xul"
diff --git a/dom/fs/parent/moz.build b/dom/fs/parent/moz.build
new file mode 100644
index 0000000000..563bf8e4d3
--- /dev/null
+++ b/dom/fs/parent/moz.build
@@ -0,0 +1,58 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+DIRS += [
+ "datamodel",
+]
+
+EXPORTS.mozilla.dom += [
+ "FileSystemAccessHandle.h",
+ "FileSystemAccessHandleControlParent.h",
+ "FileSystemAccessHandleParent.h",
+ "FileSystemManagerParent.h",
+ "FileSystemManagerParentFactory.h",
+ "FileSystemQuotaClient.h",
+ "FileSystemWritableFileStreamParent.h",
+]
+
+UNIFIED_SOURCES += [
+ "FileSystemAccessHandle.cpp",
+ "FileSystemAccessHandleControlParent.cpp",
+ "FileSystemAccessHandleParent.cpp",
+ "FileSystemContentTypeGuess.cpp",
+ "FileSystemHashSource.cpp",
+ "FileSystemManagerParent.cpp",
+ "FileSystemManagerParentFactory.cpp",
+ "FileSystemQuotaClient.cpp",
+ "FileSystemStreamCallbacks.cpp",
+ "FileSystemWritableFileStreamParent.cpp",
+ "ResultStatement.cpp",
+]
+
+LOCAL_INCLUDES += [
+ "/dom/fs/include",
+ "/dom/fs/parent/datamodel",
+]
+
+FINAL_LIBRARY = "xul"
+
+include("/ipc/chromium/chromium-config.mozbuild")
+
+if CONFIG["COMPILE_ENVIRONMENT"]:
+ CbindgenHeader(
+ "data_encoding_ffi_generated.h",
+ inputs=["/dom/fs/parent/rust/data-encoding-ffi"],
+ )
+
+ CbindgenHeader(
+ "mime_guess_ffi_generated.h",
+ inputs=["/dom/fs/parent/rust/mime-guess-ffi"],
+ )
+
+ EXPORTS.mozilla.dom += [
+ "!data_encoding_ffi_generated.h",
+ "!mime_guess_ffi_generated.h",
+ ]
diff --git a/dom/fs/parent/rust/data-encoding-ffi/Cargo.toml b/dom/fs/parent/rust/data-encoding-ffi/Cargo.toml
new file mode 100644
index 0000000000..1a641e5c7b
--- /dev/null
+++ b/dom/fs/parent/rust/data-encoding-ffi/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "data-encoding-ffi"
+version = "0.1.0"
+license = "MPL-2.0"
+authors = ["The Mozilla Project Developers"]
+
+[dependencies]
+data-encoding = "2.2.1"
+nsstring = { path = "../../../../../xpcom/rust/nsstring" }
diff --git a/dom/fs/parent/rust/data-encoding-ffi/cbindgen.toml b/dom/fs/parent/rust/data-encoding-ffi/cbindgen.toml
new file mode 100644
index 0000000000..37da12d3b7
--- /dev/null
+++ b/dom/fs/parent/rust/data-encoding-ffi/cbindgen.toml
@@ -0,0 +1,11 @@
+header = """/* 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/. */"""
+autogen_warning = """/* DO NOT MODIFY THIS MANUALLY! This file was generated using cbindgen. See RunCbindgen.py */"""
+include_guard = "DOM_FS_PARENT_RUST_DATA_ENCODING_FFI_H_"
+include_version = true
+braces = "SameLine"
+line_length = 100
+tab_width = 2
+language = "C++"
+namespaces = ["mozilla", "dom", "fs"]
diff --git a/dom/fs/parent/rust/data-encoding-ffi/src/lib.rs b/dom/fs/parent/rust/data-encoding-ffi/src/lib.rs
new file mode 100644
index 0000000000..74900b62ae
--- /dev/null
+++ b/dom/fs/parent/rust/data-encoding-ffi/src/lib.rs
@@ -0,0 +1,14 @@
+/* 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/. */
+
+extern crate data_encoding;
+extern crate nsstring;
+
+use data_encoding::BASE32;
+use nsstring::{nsACString, nsCString};
+
+#[no_mangle]
+pub extern "C" fn base32encode(unencoded: &nsACString, encoded: &mut nsCString) {
+ encoded.assign(&BASE32.encode(&unencoded[..]));
+}
diff --git a/dom/fs/parent/rust/mime-guess-ffi/Cargo.toml b/dom/fs/parent/rust/mime-guess-ffi/Cargo.toml
new file mode 100644
index 0000000000..3256f95f96
--- /dev/null
+++ b/dom/fs/parent/rust/mime-guess-ffi/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "mime-guess-ffi"
+version = "0.1.0"
+license = "MPL-2.0"
+authors = ["The Mozilla Project Developers"]
+
+[dependencies]
+mime_guess = "2.0.4"
+nsstring = { path = "../../../../../xpcom/rust/nsstring" }
diff --git a/dom/fs/parent/rust/mime-guess-ffi/cbindgen.toml b/dom/fs/parent/rust/mime-guess-ffi/cbindgen.toml
new file mode 100644
index 0000000000..d7f94927ab
--- /dev/null
+++ b/dom/fs/parent/rust/mime-guess-ffi/cbindgen.toml
@@ -0,0 +1,11 @@
+header = """/* 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/. */"""
+autogen_warning = """/* DO NOT MODIFY THIS MANUALLY! This file was generated using cbindgen. See RunCbindgen.py */"""
+include_guard = "DOM_FS_PARENT_RUST_MIME_GUESS_FFI_H_"
+include_version = true
+braces = "SameLine"
+line_length = 100
+tab_width = 2
+language = "C++"
+namespaces = ["mozilla", "dom", "fs"]
diff --git a/dom/fs/parent/rust/mime-guess-ffi/src/lib.rs b/dom/fs/parent/rust/mime-guess-ffi/src/lib.rs
new file mode 100644
index 0000000000..8f9492e724
--- /dev/null
+++ b/dom/fs/parent/rust/mime-guess-ffi/src/lib.rs
@@ -0,0 +1,25 @@
+/* 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/. */
+
+extern crate mime_guess;
+extern crate nsstring;
+
+use nsstring::{nsACString, nsCString};
+use std::path::Path;
+use std::str;
+
+#[no_mangle]
+pub extern "C" fn mimeGuessFromPath(path: &nsACString, content_type: &mut nsCString) {
+ let path_data = str::from_utf8(path.as_ref());
+ if path_data.is_err() {
+ return; // Not UTF8
+ }
+
+ let maybe_mime = mime_guess::from_path(Path::new(path_data.unwrap())).first_raw();
+ if maybe_mime.is_none() {
+ return; // Not recognized
+ }
+
+ content_type.assign(maybe_mime.unwrap());
+}