зеркало из https://github.com/mozilla/gecko-dev.git
129 строки
3.1 KiB
C++
129 строки
3.1 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/FileSystemBase.h"
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#include "DeviceStorageFileSystem.h"
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#include "nsCharSeparatedTokenizer.h"
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#include "OSFileSystem.h"
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namespace mozilla {
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namespace dom {
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// static
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already_AddRefed<FileSystemBase>
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FileSystemBase::FromString(const nsAString& aString)
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{
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if (StringBeginsWith(aString, NS_LITERAL_STRING("devicestorage-"))) {
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// The string representation of devicestorage file system is of the format:
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// devicestorage-StorageType-StorageName
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nsCharSeparatedTokenizer tokenizer(aString, char16_t('-'));
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tokenizer.nextToken();
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nsString storageType;
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if (tokenizer.hasMoreTokens()) {
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storageType = tokenizer.nextToken();
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}
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nsString storageName;
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if (tokenizer.hasMoreTokens()) {
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storageName = tokenizer.nextToken();
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}
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RefPtr<DeviceStorageFileSystem> f =
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new DeviceStorageFileSystem(storageType, storageName);
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return f.forget();
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}
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return RefPtr<OSFileSystem>(new OSFileSystem(aString)).forget();
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}
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FileSystemBase::FileSystemBase()
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: mShutdown(false)
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, mRequiresPermissionChecks(true)
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{
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}
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FileSystemBase::~FileSystemBase()
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{
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}
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void
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FileSystemBase::Shutdown()
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{
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mShutdown = true;
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}
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nsPIDOMWindow*
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FileSystemBase::GetWindow() const
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{
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return nullptr;
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}
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already_AddRefed<nsIFile>
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FileSystemBase::GetLocalFile(const nsAString& aRealPath) 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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nsAutoString localPath;
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FileSystemUtils::NormalizedPathToLocalPath(aRealPath, localPath);
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localPath = mLocalRootPath + localPath;
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nsCOMPtr<nsIFile> file;
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nsresult rv = NS_NewLocalFile(localPath, false, getter_AddRefs(file));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return nullptr;
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}
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return file.forget();
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}
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bool
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FileSystemBase::GetRealPath(BlobImpl* aFile, nsAString& aRealPath) 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, "aFile Should not be null.");
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aRealPath.Truncate();
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nsAutoString filePath;
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ErrorResult rv;
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aFile->GetMozFullPathInternal(filePath, rv);
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if (NS_WARN_IF(rv.Failed())) {
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return false;
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}
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return LocalPathToRealPath(filePath, aRealPath);
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}
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bool
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FileSystemBase::IsSafeFile(nsIFile* aFile) const
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{
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return false;
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}
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bool
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FileSystemBase::IsSafeDirectory(Directory* aDir) const
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{
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return false;
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}
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bool
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FileSystemBase::LocalPathToRealPath(const nsAString& aLocalPath,
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nsAString& aRealPath) const
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{
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nsAutoString path;
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FileSystemUtils::LocalPathToNormalizedPath(aLocalPath, path);
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if (!FileSystemUtils::IsDescendantPath(mNormalizedLocalRootPath, path)) {
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aRealPath.Truncate();
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return false;
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}
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aRealPath = Substring(path, mNormalizedLocalRootPath.Length());
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return true;
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}
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} // namespace dom
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} // namespace mozilla
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