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/* -*- 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 "GetFileOrDirectoryTask.h"
#include "js/Value.h"
#include "mozilla/dom/FileBlobImpl.h"
#include "mozilla/dom/FileSystemBase.h"
#include "mozilla/dom/FileSystemUtils.h"
#include "mozilla/dom/PFileSystemParams.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/IPCBlobUtils.h"
#include "mozilla/ipc/BackgroundParent.h"
#include "nsIFile.h"
#include "nsString.h"
namespace mozilla::dom {
/**
* GetFileOrDirectoryTaskChild
*/
/* static */
already_AddRefed<GetFileOrDirectoryTaskChild>
GetFileOrDirectoryTaskChild::Create(FileSystemBase* aFileSystem,
nsIFile* aTargetPath, ErrorResult& aRv) {
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
MOZ_ASSERT(aFileSystem);
nsCOMPtr<nsIGlobalObject> globalObject = aFileSystem->GetParentObject();
if (NS_WARN_IF(!globalObject)) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<GetFileOrDirectoryTaskChild> task =
new GetFileOrDirectoryTaskChild(globalObject, aFileSystem, aTargetPath);
// aTargetPath can be null. In this case SetError will be called.
task->mPromise = Promise::Create(globalObject, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
return task.forget();
}
GetFileOrDirectoryTaskChild::GetFileOrDirectoryTaskChild(
nsIGlobalObject* aGlobalObject, FileSystemBase* aFileSystem,
nsIFile* aTargetPath)
: FileSystemTaskChildBase(aGlobalObject, aFileSystem),
mTargetPath(aTargetPath) {
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
MOZ_ASSERT(aFileSystem);
}
GetFileOrDirectoryTaskChild::~GetFileOrDirectoryTaskChild() {
MOZ_ASSERT(NS_IsMainThread());
}
already_AddRefed<Promise> GetFileOrDirectoryTaskChild::GetPromise() {
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
return RefPtr<Promise>(mPromise).forget();
}
FileSystemParams GetFileOrDirectoryTaskChild::GetRequestParams(
const nsString& aSerializedDOMPath, ErrorResult& aRv) const {
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
nsAutoString path;
aRv = mTargetPath->GetPath(path);
if (NS_WARN_IF(aRv.Failed())) {
return FileSystemGetFileOrDirectoryParams();
}
return FileSystemGetFileOrDirectoryParams(aSerializedDOMPath, path);
}
void GetFileOrDirectoryTaskChild::SetSuccessRequestResult(
const FileSystemResponseValue& aValue, ErrorResult& aRv) {
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
switch (aValue.type()) {
case FileSystemResponseValue::TFileSystemFileResponse: {
FileSystemFileResponse r = aValue;
RefPtr<BlobImpl> blobImpl = IPCBlobUtils::Deserialize(r.blob());
MOZ_ASSERT(blobImpl);
nsCOMPtr<nsIGlobalObject> globalObject = mFileSystem->GetParentObject();
MOZ_ASSERT(globalObject);
mResultFile = File::Create(globalObject, blobImpl);
if (NS_WARN_IF(!mResultFile)) {
aRv.Throw(NS_ERROR_FAILURE);
}
break;
}
case FileSystemResponseValue::TFileSystemDirectoryResponse: {
FileSystemDirectoryResponse r = aValue;
nsCOMPtr<nsIFile> file;
aRv = NS_NewLocalFile(r.realPath(), true, getter_AddRefs(file));
if (NS_WARN_IF(aRv.Failed())) {
return;
}
mResultDirectory =
Directory::Create(mFileSystem->GetParentObject(), file, mFileSystem);
MOZ_ASSERT(mResultDirectory);
break;
}
default: {
MOZ_CRASH("not reached");
break;
}
}
}
void GetFileOrDirectoryTaskChild::HandlerCallback() {
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
if (mFileSystem->IsShutdown()) {
mPromise = nullptr;
return;
}
if (HasError()) {
mPromise->MaybeReject(mErrorValue);
mPromise = nullptr;
return;
}
if (mResultDirectory) {
mPromise->MaybeResolve(mResultDirectory);
mResultDirectory = nullptr;
mPromise = nullptr;
return;
}
MOZ_ASSERT(mResultFile);
mPromise->MaybeResolve(mResultFile);
mResultFile = nullptr;
mPromise = nullptr;
}
/**
* GetFileOrDirectoryTaskParent
*/
/* static */
already_AddRefed<GetFileOrDirectoryTaskParent>
GetFileOrDirectoryTaskParent::Create(
FileSystemBase* aFileSystem,
const FileSystemGetFileOrDirectoryParams& aParam,
FileSystemRequestParent* aParent, ErrorResult& aRv) {
MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
mozilla::ipc::AssertIsOnBackgroundThread();
MOZ_ASSERT(aFileSystem);
RefPtr<GetFileOrDirectoryTaskParent> task =
new GetFileOrDirectoryTaskParent(aFileSystem, aParam, aParent);
aRv = NS_NewLocalFile(aParam.realPath(), true,
getter_AddRefs(task->mTargetPath));
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
return task.forget();
}
GetFileOrDirectoryTaskParent::GetFileOrDirectoryTaskParent(
FileSystemBase* aFileSystem,
const FileSystemGetFileOrDirectoryParams& aParam,
FileSystemRequestParent* aParent)
: FileSystemTaskParentBase(aFileSystem, aParam, aParent),
mIsDirectory(false) {
MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
mozilla::ipc::AssertIsOnBackgroundThread();
MOZ_ASSERT(aFileSystem);
}
FileSystemResponseValue GetFileOrDirectoryTaskParent::GetSuccessRequestResult(
ErrorResult& aRv) const {
mozilla::ipc::AssertIsOnBackgroundThread();
nsAutoString path;
aRv = mTargetPath->GetPath(path);
if (NS_WARN_IF(aRv.Failed())) {
return FileSystemDirectoryResponse();
}
if (mIsDirectory) {
return FileSystemDirectoryResponse(path);
}
RefPtr<BlobImpl> blobImpl = new FileBlobImpl(mTargetPath);
IPCBlob ipcBlob;
aRv = IPCBlobUtils::Serialize(blobImpl, ipcBlob);
if (NS_WARN_IF(aRv.Failed())) {
return FileSystemDirectoryResponse();
}
return FileSystemFileResponse(ipcBlob);
}
nsresult GetFileOrDirectoryTaskParent::IOWork() {
MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
MOZ_ASSERT(!NS_IsMainThread(), "Only call on worker thread!");
if (mFileSystem->IsShutdown()) {
return NS_ERROR_FAILURE;
}
// Whether we want to get the root directory.
bool exists;
nsresult rv = mTargetPath->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!exists) {
if (!mFileSystem->ShouldCreateDirectory()) {
return NS_ERROR_DOM_FILE_NOT_FOUND_ERR;
}
rv = mTargetPath->Create(nsIFile::DIRECTORY_TYPE, 0777);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
// Get isDirectory.
rv = mTargetPath->IsDirectory(&mIsDirectory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (mIsDirectory) {
return NS_OK;
}
bool isFile;
// Get isFile
rv = mTargetPath->IsFile(&isFile);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!isFile) {
// Neither directory or file.
return NS_ERROR_DOM_FILESYSTEM_TYPE_MISMATCH_ERR;
}
if (!mFileSystem->IsSafeFile(mTargetPath)) {
return NS_ERROR_DOM_SECURITY_ERR;
}
return NS_OK;
}
nsresult GetFileOrDirectoryTaskParent::GetTargetPath(nsAString& aPath) const {
return mTargetPath->GetPath(aPath);
}
} // namespace mozilla::dom
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