143 lines
4.1 KiB
C++
143 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/DeviceStorageFileSystem.h"
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#include "DeviceStorage.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/dom/Directory.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/dom/FileSystemUtils.h"
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#include "nsCOMPtr.h"
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#include "nsDebug.h"
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#include "nsDeviceStorage.h"
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#include "nsIFile.h"
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#include "nsPIDOMWindow.h"
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#include "nsGlobalWindow.h"
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namespace mozilla {
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namespace dom {
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DeviceStorageFileSystem::DeviceStorageFileSystem(
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const nsAString& aStorageType,
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const nsAString& aStorageName)
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: mWindowId(0)
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{
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MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
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mStorageType = aStorageType;
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mStorageName = aStorageName;
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// Generate the string representation of the file system.
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mString.AppendLiteral("devicestorage-");
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mString.Append(mStorageType);
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mString.Append('-');
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mString.Append(mStorageName);
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mRequiresPermissionChecks =
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!mozilla::Preferences::GetBool("device.storage.prompt.testing", false);
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// Get the permission name required to access the file system.
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nsresult rv =
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DeviceStorageTypeChecker::GetPermissionForType(mStorageType, mPermission);
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NS_WARN_IF(NS_FAILED(rv));
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// Get the local path of the file system root.
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// Since the child process is not allowed to access the file system, we only
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// do this from the parent process.
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if (!XRE_IsParentProcess()) {
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return;
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}
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nsCOMPtr<nsIFile> rootFile;
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DeviceStorageFile::GetRootDirectoryForType(aStorageType,
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aStorageName,
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getter_AddRefs(rootFile));
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NS_WARN_IF(!rootFile || NS_FAILED(rootFile->GetPath(mLocalRootPath)));
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FileSystemUtils::LocalPathToNormalizedPath(mLocalRootPath,
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mNormalizedLocalRootPath);
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// DeviceStorageTypeChecker is a singleton object and must be initialized on
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// the main thread. We initialize it here so that we can use it on the worker
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// thread.
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DebugOnly<DeviceStorageTypeChecker*> typeChecker
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= DeviceStorageTypeChecker::CreateOrGet();
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MOZ_ASSERT(typeChecker);
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}
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DeviceStorageFileSystem::~DeviceStorageFileSystem()
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{
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}
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void
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DeviceStorageFileSystem::Init(nsDOMDeviceStorage* aDeviceStorage)
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{
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MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
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MOZ_ASSERT(aDeviceStorage);
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nsCOMPtr<nsPIDOMWindow> window = aDeviceStorage->GetOwner();
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MOZ_ASSERT(window->IsInnerWindow());
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mWindowId = window->WindowID();
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}
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void
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DeviceStorageFileSystem::Shutdown()
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{
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MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
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mShutdown = true;
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}
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nsPIDOMWindow*
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DeviceStorageFileSystem::GetWindow() const
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{
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MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
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nsGlobalWindow* window = nsGlobalWindow::GetInnerWindowWithId(mWindowId);
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MOZ_ASSERT_IF(!mShutdown, window);
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return window;
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}
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void
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DeviceStorageFileSystem::GetRootName(nsAString& aRetval) const
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{
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aRetval = mStorageName;
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}
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bool
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DeviceStorageFileSystem::IsSafeFile(nsIFile* aFile) const
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{
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MOZ_ASSERT(XRE_IsParentProcess(),
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"Should be on parent process!");
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MOZ_ASSERT(aFile);
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// Check if this file belongs to this storage.
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nsAutoString path;
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if (NS_FAILED(aFile->GetPath(path))) {
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return false;
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}
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if (!LocalPathToRealPath(path, path)) {
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return false;
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}
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// Check if the file type is compatible with the storage type.
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DeviceStorageTypeChecker* typeChecker
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= DeviceStorageTypeChecker::CreateOrGet();
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MOZ_ASSERT(typeChecker);
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return typeChecker->Check(mStorageType, aFile);
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}
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bool
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DeviceStorageFileSystem::IsSafeDirectory(Directory* aDir) const
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{
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MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
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MOZ_ASSERT(aDir);
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RefPtr<FileSystemBase> fs = aDir->GetFileSystem();
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MOZ_ASSERT(fs);
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// Check if the given directory is from this storage.
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return fs->ToString() == mString;
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}
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} // namespace dom
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} // namespace mozilla
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