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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "GetFilesTask.h"
#include "HTMLSplitOnSpacesTokenizer.h"
#include "js/Value.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/FileSystemBase.h"
#include "mozilla/dom/FileSystemUtils.h"
#include "mozilla/dom/PFileSystemParams.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/ipc/BlobChild.h"
#include "mozilla/dom/ipc/BlobParent.h"
#include "mozilla/ipc/BackgroundParent.h"
#include "nsIFile.h"
#include "nsStringGlue.h"
using namespace mozilla::ipc;
namespace mozilla {
namespace dom {
/**
* GetFilesTaskChild
*/
/* static */ already_AddRefed<GetFilesTaskChild>
GetFilesTaskChild::Create(FileSystemBase* aFileSystem,
Directory* aDirectory,
nsIFile* aTargetPath,
bool aRecursiveFlag,
ErrorResult& aRv)
{
MOZ_ASSERT(aFileSystem);
MOZ_ASSERT(aDirectory);
aFileSystem->AssertIsOnOwningThread();
nsCOMPtr<nsIGlobalObject> globalObject =
do_QueryInterface(aFileSystem->GetParentObject());
if (NS_WARN_IF(!globalObject)) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<GetFilesTaskChild> task =
new GetFilesTaskChild(aFileSystem, aDirectory, aTargetPath,
aRecursiveFlag);
// 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();
}
GetFilesTaskChild::GetFilesTaskChild(FileSystemBase* aFileSystem,
Directory* aDirectory,
nsIFile* aTargetPath,
bool aRecursiveFlag)
: FileSystemTaskChildBase(aFileSystem)
, mDirectory(aDirectory)
, mTargetPath(aTargetPath)
, mRecursiveFlag(aRecursiveFlag)
{
MOZ_ASSERT(aFileSystem);
MOZ_ASSERT(aDirectory);
aFileSystem->AssertIsOnOwningThread();
}
GetFilesTaskChild::~GetFilesTaskChild()
{
mFileSystem->AssertIsOnOwningThread();
}
already_AddRefed<Promise>
GetFilesTaskChild::GetPromise()
{
mFileSystem->AssertIsOnOwningThread();
return RefPtr<Promise>(mPromise).forget();
}
FileSystemParams
GetFilesTaskChild::GetRequestParams(const nsString& aSerializedDOMPath,
ErrorResult& aRv) const
{
mFileSystem->AssertIsOnOwningThread();
nsAutoString path;
aRv = mTargetPath->GetPath(path);
if (NS_WARN_IF(aRv.Failed())) {
return FileSystemGetFilesParams();
}
nsAutoString domPath;
mDirectory->GetPath(domPath, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return FileSystemGetFilesParams();
}
return FileSystemGetFilesParams(aSerializedDOMPath, path, domPath,
mRecursiveFlag);
}
void
GetFilesTaskChild::SetSuccessRequestResult(const FileSystemResponseValue& aValue,
ErrorResult& aRv)
{
mFileSystem->AssertIsOnOwningThread();
MOZ_ASSERT(aValue.type() ==
FileSystemResponseValue::TFileSystemFilesResponse);
FileSystemFilesResponse r = aValue;
if (!mTargetData.SetLength(r.data().Length(), mozilla::fallible_t())) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
for (uint32_t i = 0; i < r.data().Length(); ++i) {
const FileSystemFileResponse& data = r.data()[i];
RefPtr<BlobImpl> blobImpl =
static_cast<BlobChild*>(data.blobChild())->GetBlobImpl();
MOZ_ASSERT(blobImpl);
mTargetData[i] = File::Create(mFileSystem->GetParentObject(), blobImpl);
}
}
void
GetFilesTaskChild::HandlerCallback()
{
mFileSystem->AssertIsOnOwningThread();
if (mFileSystem->IsShutdown()) {
mPromise = nullptr;
return;
}
if (HasError()) {
mPromise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR);
mPromise = nullptr;
return;
}
mPromise->MaybeResolve(mTargetData);
mPromise = nullptr;
}
/**
* GetFilesTaskParent
*/
/* static */ already_AddRefed<GetFilesTaskParent>
GetFilesTaskParent::Create(FileSystemBase* aFileSystem,
const FileSystemGetFilesParams& aParam,
FileSystemRequestParent* aParent,
ErrorResult& aRv)
{
MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
AssertIsOnBackgroundThread();
MOZ_ASSERT(aFileSystem);
RefPtr<GetFilesTaskParent> task =
new GetFilesTaskParent(aFileSystem, aParam, aParent);
aRv = NS_NewLocalFile(aParam.realPath(), true,
getter_AddRefs(task->mTargetPath));
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
return task.forget();
}
GetFilesTaskParent::GetFilesTaskParent(FileSystemBase* aFileSystem,
const FileSystemGetFilesParams& aParam,
FileSystemRequestParent* aParent)
: FileSystemTaskParentBase(aFileSystem, aParam, aParent)
, GetFilesHelperBase(aParam.recursiveFlag())
, mDirectoryDOMPath(aParam.domPath())
{
MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
AssertIsOnBackgroundThread();
MOZ_ASSERT(aFileSystem);
}
FileSystemResponseValue
GetFilesTaskParent::GetSuccessRequestResult(ErrorResult& aRv) const
{
AssertIsOnBackgroundThread();
InfallibleTArray<PBlobParent*> blobs;
FallibleTArray<FileSystemFileResponse> inputs;
if (!inputs.SetLength(mTargetBlobImplArray.Length(), mozilla::fallible_t())) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
FileSystemFilesResponse response;
return response;
}
for (unsigned i = 0; i < mTargetBlobImplArray.Length(); i++) {
BlobParent* blobParent =
BlobParent::GetOrCreate(mRequestParent->Manager(),
mTargetBlobImplArray[i]);
inputs[i] = FileSystemFileResponse(blobParent, nullptr);
}
FileSystemFilesResponse response;
response.data().SwapElements(inputs);
return response;
}
nsresult
GetFilesTaskParent::IOWork()
{
MOZ_ASSERT(XRE_IsParentProcess(),
"Only call from parent process!");
MOZ_ASSERT(!NS_IsMainThread(), "Only call on I/O thread!");
if (mFileSystem->IsShutdown()) {
return NS_ERROR_FAILURE;
}
bool exists;
nsresult rv = mTargetPath->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!exists) {
return NS_OK;
}
bool isDir;
rv = mTargetPath->IsDirectory(&isDir);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!isDir) {
return NS_ERROR_DOM_FILESYSTEM_TYPE_MISMATCH_ERR;
}
// Get isDirectory.
rv = ExploreDirectory(mDirectoryDOMPath, mTargetPath);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
nsresult
GetFilesTaskParent::GetTargetPath(nsAString& aPath) const
{
return mTargetPath->GetPath(aPath);
}
} // namespace dom
} // namespace mozilla
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