зеркало из https://github.com/mozilla/gecko-dev.git
418 строки
12 KiB
C++
418 строки
12 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 "GetDirectoryListingTask.h"
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#include "HTMLSplitOnSpacesTokenizer.h"
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#include "js/Value.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/dom/FileSystemBase.h"
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#include "mozilla/dom/FileSystemUtils.h"
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#include "mozilla/dom/PFileSystemParams.h"
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#include "mozilla/dom/Promise.h"
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#include "mozilla/dom/ipc/BlobChild.h"
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#include "mozilla/dom/ipc/BlobParent.h"
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#include "nsIFile.h"
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#include "nsStringGlue.h"
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namespace mozilla {
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namespace dom {
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/**
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* GetDirectoryListingTaskChild
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*/
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/* static */ already_AddRefed<GetDirectoryListingTaskChild>
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GetDirectoryListingTaskChild::Create(FileSystemBase* aFileSystem,
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Directory* aDirectory,
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nsIFile* aTargetPath,
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const nsAString& aFilters,
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ErrorResult& aRv)
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{
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MOZ_ASSERT(aFileSystem);
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MOZ_ASSERT(aDirectory);
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aFileSystem->AssertIsOnOwningThread();
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RefPtr<GetDirectoryListingTaskChild> task =
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new GetDirectoryListingTaskChild(aFileSystem, aDirectory, aTargetPath,
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aFilters);
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// aTargetPath can be null. In this case SetError will be called.
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nsCOMPtr<nsIGlobalObject> globalObject =
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do_QueryInterface(aFileSystem->GetParentObject());
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if (NS_WARN_IF(!globalObject)) {
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aRv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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task->mPromise = Promise::Create(globalObject, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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return task.forget();
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}
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GetDirectoryListingTaskChild::GetDirectoryListingTaskChild(FileSystemBase* aFileSystem,
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Directory* aDirectory,
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nsIFile* aTargetPath,
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const nsAString& aFilters)
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: FileSystemTaskChildBase(aFileSystem)
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, mDirectory(aDirectory)
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, mTargetPath(aTargetPath)
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, mFilters(aFilters)
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{
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MOZ_ASSERT(aFileSystem);
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aFileSystem->AssertIsOnOwningThread();
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}
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GetDirectoryListingTaskChild::~GetDirectoryListingTaskChild()
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{
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mFileSystem->AssertIsOnOwningThread();
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}
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already_AddRefed<Promise>
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GetDirectoryListingTaskChild::GetPromise()
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{
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mFileSystem->AssertIsOnOwningThread();
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return RefPtr<Promise>(mPromise).forget();
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}
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FileSystemParams
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GetDirectoryListingTaskChild::GetRequestParams(const nsString& aSerializedDOMPath,
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ErrorResult& aRv) const
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{
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mFileSystem->AssertIsOnOwningThread();
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nsAutoString path;
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aRv = mTargetPath->GetPath(path);
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if (NS_WARN_IF(aRv.Failed())) {
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return FileSystemGetDirectoryListingParams();
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}
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return FileSystemGetDirectoryListingParams(aSerializedDOMPath, path,
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mFilters);
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}
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void
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GetDirectoryListingTaskChild::SetSuccessRequestResult(const FileSystemResponseValue& aValue,
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ErrorResult& aRv)
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{
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mFileSystem->AssertIsOnOwningThread();
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MOZ_ASSERT(aValue.type() ==
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FileSystemResponseValue::TFileSystemDirectoryListingResponse);
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FileSystemDirectoryListingResponse r = aValue;
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for (uint32_t i = 0; i < r.data().Length(); ++i) {
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const FileSystemDirectoryListingResponseData& data = r.data()[i];
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Directory::FileOrDirectoryPath element;
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if (data.type() == FileSystemDirectoryListingResponseData::TFileSystemDirectoryListingResponseFile) {
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element.mType = Directory::FileOrDirectoryPath::eFilePath;
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element.mPath = data.get_FileSystemDirectoryListingResponseFile().fileRealPath();
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} else {
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MOZ_ASSERT(data.type() == FileSystemDirectoryListingResponseData::TFileSystemDirectoryListingResponseDirectory);
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element.mType = Directory::FileOrDirectoryPath::eDirectoryPath;
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element.mPath = data.get_FileSystemDirectoryListingResponseDirectory().directoryRealPath();
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}
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if (!mTargetData.AppendElement(element, fallible)) {
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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return;
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}
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}
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}
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void
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GetDirectoryListingTaskChild::HandlerCallback()
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{
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mFileSystem->AssertIsOnOwningThread();
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if (mFileSystem->IsShutdown()) {
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mPromise = nullptr;
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return;
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}
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if (HasError()) {
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mPromise->MaybeReject(mErrorValue);
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mPromise = nullptr;
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return;
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}
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size_t count = mTargetData.Length();
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nsAutoString directoryPath;
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ErrorResult error;
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mDirectory->GetPath(directoryPath, error);
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if (NS_WARN_IF(error.Failed())) {
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mPromise->MaybeReject(error.StealNSResult());
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mPromise = nullptr;
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return;
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}
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Sequence<OwningFileOrDirectory> listing;
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if (!listing.SetLength(count, mozilla::fallible_t())) {
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mPromise->MaybeReject(NS_ERROR_OUT_OF_MEMORY);
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mPromise = nullptr;
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return;
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}
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for (unsigned i = 0; i < count; i++) {
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nsCOMPtr<nsIFile> path;
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NS_ConvertUTF16toUTF8 fullPath(mTargetData[i].mPath);
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nsresult rv = NS_NewNativeLocalFile(fullPath, true, getter_AddRefs(path));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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mPromise->MaybeReject(rv);
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mPromise = nullptr;
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return;
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}
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#ifdef DEBUG
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nsCOMPtr<nsIFile> rootPath;
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rv = NS_NewLocalFile(mFileSystem->LocalOrDeviceStorageRootPath(), false,
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getter_AddRefs(rootPath));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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mPromise->MaybeReject(rv);
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mPromise = nullptr;
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return;
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}
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MOZ_ASSERT(FileSystemUtils::IsDescendantPath(rootPath, path));
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#endif
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if (mTargetData[i].mType == Directory::FileOrDirectoryPath::eDirectoryPath) {
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RefPtr<Directory> directory =
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Directory::Create(mFileSystem->GetParentObject(), path, mFileSystem);
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MOZ_ASSERT(directory);
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// Propogate mFilter onto sub-Directory object:
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directory->SetContentFilters(mFilters);
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listing[i].SetAsDirectory() = directory;
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} else {
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MOZ_ASSERT(mTargetData[i].mType == Directory::FileOrDirectoryPath::eFilePath);
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RefPtr<File> file =
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File::CreateFromFile(mFileSystem->GetParentObject(), path);
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MOZ_ASSERT(file);
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nsAutoString filePath;
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filePath.Assign(directoryPath);
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// This is specific for unix root filesystem.
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if (!directoryPath.EqualsLiteral(FILESYSTEM_DOM_PATH_SEPARATOR_LITERAL)) {
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filePath.AppendLiteral(FILESYSTEM_DOM_PATH_SEPARATOR_LITERAL);
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}
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nsAutoString name;
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file->GetName(name);
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filePath.Append(name);
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file->SetPath(filePath);
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listing[i].SetAsFile() = file;
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}
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}
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mPromise->MaybeResolve(listing);
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mPromise = nullptr;
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}
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void
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GetDirectoryListingTaskChild::GetPermissionAccessType(nsCString& aAccess) const
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{
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aAccess.AssignLiteral(DIRECTORY_READ_PERMISSION);
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}
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/**
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* GetDirectoryListingTaskParent
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*/
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/* static */ already_AddRefed<GetDirectoryListingTaskParent>
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GetDirectoryListingTaskParent::Create(FileSystemBase* aFileSystem,
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const FileSystemGetDirectoryListingParams& aParam,
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FileSystemRequestParent* aParent,
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ErrorResult& aRv)
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{
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MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
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AssertIsOnBackgroundThread();
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MOZ_ASSERT(aFileSystem);
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RefPtr<GetDirectoryListingTaskParent> task =
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new GetDirectoryListingTaskParent(aFileSystem, aParam, aParent);
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NS_ConvertUTF16toUTF8 path(aParam.realPath());
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aRv = NS_NewNativeLocalFile(path, true, getter_AddRefs(task->mTargetPath));
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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return task.forget();
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}
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GetDirectoryListingTaskParent::GetDirectoryListingTaskParent(FileSystemBase* aFileSystem,
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const FileSystemGetDirectoryListingParams& aParam,
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FileSystemRequestParent* aParent)
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: FileSystemTaskParentBase(aFileSystem, aParam, aParent)
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, mFilters(aParam.filters())
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{
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MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
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AssertIsOnBackgroundThread();
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MOZ_ASSERT(aFileSystem);
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}
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FileSystemResponseValue
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GetDirectoryListingTaskParent::GetSuccessRequestResult(ErrorResult& aRv) const
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{
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AssertIsOnBackgroundThread();
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InfallibleTArray<PBlobParent*> blobs;
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nsTArray<FileSystemDirectoryListingResponseData> inputs;
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for (unsigned i = 0; i < mTargetData.Length(); i++) {
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if (mTargetData[i].mType == Directory::FileOrDirectoryPath::eFilePath) {
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FileSystemDirectoryListingResponseFile fileData;
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fileData.fileRealPath() = mTargetData[i].mPath;
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inputs.AppendElement(fileData);
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} else {
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MOZ_ASSERT(mTargetData[i].mType == Directory::FileOrDirectoryPath::eDirectoryPath);
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FileSystemDirectoryListingResponseDirectory directoryData;
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directoryData.directoryRealPath() = mTargetData[i].mPath;
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inputs.AppendElement(directoryData);
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}
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}
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FileSystemDirectoryListingResponse response;
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response.data().SwapElements(inputs);
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return response;
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}
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nsresult
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GetDirectoryListingTaskParent::IOWork()
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{
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MOZ_ASSERT(XRE_IsParentProcess(),
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"Only call from parent process!");
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MOZ_ASSERT(!NS_IsMainThread(), "Only call on worker thread!");
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if (mFileSystem->IsShutdown()) {
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return NS_ERROR_FAILURE;
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}
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bool exists;
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nsresult rv = mTargetPath->Exists(&exists);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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if (!exists) {
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if (!mFileSystem->ShouldCreateDirectory()) {
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return NS_ERROR_DOM_FILE_NOT_FOUND_ERR;
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}
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rv = mTargetPath->Create(nsIFile::DIRECTORY_TYPE, 0777);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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}
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// Get isDirectory.
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bool isDir;
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rv = mTargetPath->IsDirectory(&isDir);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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if (!isDir) {
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return NS_ERROR_DOM_FILESYSTEM_TYPE_MISMATCH_ERR;
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}
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nsCOMPtr<nsISimpleEnumerator> entries;
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rv = mTargetPath->GetDirectoryEntries(getter_AddRefs(entries));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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bool filterOutSensitive = false;
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{
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HTMLSplitOnSpacesTokenizer tokenizer(mFilters, ';');
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nsAutoString token;
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while (tokenizer.hasMoreTokens()) {
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token = tokenizer.nextToken();
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if (token.EqualsLiteral("filter-out-sensitive")) {
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filterOutSensitive = true;
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} else {
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MOZ_CRASH("Unrecognized filter");
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}
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}
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}
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for (;;) {
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bool hasMore = false;
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if (NS_WARN_IF(NS_FAILED(entries->HasMoreElements(&hasMore))) || !hasMore) {
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break;
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}
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nsCOMPtr<nsISupports> supp;
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if (NS_WARN_IF(NS_FAILED(entries->GetNext(getter_AddRefs(supp))))) {
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break;
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}
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nsCOMPtr<nsIFile> currFile = do_QueryInterface(supp);
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MOZ_ASSERT(currFile);
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bool isSpecial, isFile;
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if (NS_WARN_IF(NS_FAILED(currFile->IsSpecial(&isSpecial))) ||
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isSpecial) {
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continue;
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}
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if (NS_WARN_IF(NS_FAILED(currFile->IsFile(&isFile)) ||
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NS_FAILED(currFile->IsDirectory(&isDir))) ||
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!(isFile || isDir)) {
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continue;
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}
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if (filterOutSensitive) {
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bool isHidden;
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if (NS_WARN_IF(NS_FAILED(currFile->IsHidden(&isHidden))) || isHidden) {
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continue;
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}
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nsAutoString leafName;
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if (NS_WARN_IF(NS_FAILED(currFile->GetLeafName(leafName)))) {
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continue;
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}
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if (leafName[0] == char16_t('.')) {
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continue;
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}
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}
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nsAutoString path;
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if (NS_WARN_IF(NS_FAILED(currFile->GetPath(path)))) {
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continue;
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}
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Directory::FileOrDirectoryPath element;
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element.mPath = path;
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element.mType = isDir ? Directory::FileOrDirectoryPath::eDirectoryPath
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: Directory::FileOrDirectoryPath::eFilePath;
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if (!mTargetData.AppendElement(element, fallible)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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}
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return NS_OK;
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}
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void
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GetDirectoryListingTaskParent::GetPermissionAccessType(nsCString& aAccess) const
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{
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aAccess.AssignLiteral(DIRECTORY_READ_PERMISSION);
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}
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} // namespace dom
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} // namespace mozilla
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