mirror of
https://github.com/classilla/tenfourfox.git
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206 lines
5.2 KiB
C++
206 lines
5.2 KiB
C++
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/* -*- 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 "RemoveTask.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/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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RemoveTask::RemoveTask(FileSystemBase* aFileSystem,
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const nsAString& aDirPath,
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BlobImpl* aTargetBlob,
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const nsAString& aTargetPath,
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bool aRecursive,
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ErrorResult& aRv)
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: FileSystemTaskBase(aFileSystem)
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, mDirRealPath(aDirPath)
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, mTargetBlobImpl(aTargetBlob)
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, mTargetRealPath(aTargetPath)
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, mRecursive(aRecursive)
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, mReturnValue(false)
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{
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MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
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MOZ_ASSERT(aFileSystem);
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nsCOMPtr<nsIGlobalObject> globalObject =
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do_QueryInterface(aFileSystem->GetWindow());
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if (!globalObject) {
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return;
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}
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mPromise = Promise::Create(globalObject, aRv);
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}
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RemoveTask::RemoveTask(FileSystemBase* aFileSystem,
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const FileSystemRemoveParams& aParam,
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FileSystemRequestParent* aParent)
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: FileSystemTaskBase(aFileSystem, aParam, aParent)
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, mRecursive(false)
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, mReturnValue(false)
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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 main thread!");
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MOZ_ASSERT(aFileSystem);
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mDirRealPath = aParam.directory();
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mRecursive = aParam.recursive();
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const FileSystemPathOrFileValue& target = aParam.target();
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if (target.type() == FileSystemPathOrFileValue::TnsString) {
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mTargetRealPath = target;
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return;
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}
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BlobParent* bp = static_cast<BlobParent*>(static_cast<PBlobParent*>(target));
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mTargetBlobImpl = bp->GetBlobImpl();
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MOZ_ASSERT(mTargetBlobImpl);
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}
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RemoveTask::~RemoveTask()
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{
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MOZ_ASSERT(!mPromise || NS_IsMainThread(),
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"mPromise should be released on main thread!");
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}
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already_AddRefed<Promise>
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RemoveTask::GetPromise()
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{
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MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
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return RefPtr<Promise>(mPromise).forget();
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}
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FileSystemParams
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RemoveTask::GetRequestParams(const nsString& aFileSystem) const
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{
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MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
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FileSystemRemoveParams param;
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param.filesystem() = aFileSystem;
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param.directory() = mDirRealPath;
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param.recursive() = mRecursive;
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if (mTargetBlobImpl) {
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RefPtr<Blob> blob = Blob::Create(mFileSystem->GetWindow(),
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mTargetBlobImpl);
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BlobChild* actor
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= ContentChild::GetSingleton()->GetOrCreateActorForBlob(blob);
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if (actor) {
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param.target() = actor;
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}
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} else {
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param.target() = mTargetRealPath;
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}
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return param;
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}
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FileSystemResponseValue
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RemoveTask::GetSuccessRequestResult() const
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{
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MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
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return FileSystemBooleanResponse(mReturnValue);
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}
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void
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RemoveTask::SetSuccessRequestResult(const FileSystemResponseValue& aValue)
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{
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MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
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FileSystemBooleanResponse r = aValue;
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mReturnValue = r.success();
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}
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nsresult
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RemoveTask::Work()
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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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// Get the DOM path if a File is passed as the target.
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if (mTargetBlobImpl) {
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if (!mFileSystem->GetRealPath(mTargetBlobImpl, mTargetRealPath)) {
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return NS_ERROR_DOM_SECURITY_ERR;
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}
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if (!FileSystemUtils::IsDescendantPath(mDirRealPath, mTargetRealPath)) {
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return NS_ERROR_DOM_FILESYSTEM_NO_MODIFICATION_ALLOWED_ERR;
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}
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}
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nsCOMPtr<nsIFile> file = mFileSystem->GetLocalFile(mTargetRealPath);
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if (!file) {
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return NS_ERROR_DOM_FILESYSTEM_INVALID_PATH_ERR;
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}
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bool exists = false;
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nsresult rv = file->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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mReturnValue = false;
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return NS_OK;
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}
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bool isFile = false;
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rv = file->IsFile(&isFile);
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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 (isFile && !mFileSystem->IsSafeFile(file)) {
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return NS_ERROR_DOM_SECURITY_ERR;
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}
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rv = file->Remove(mRecursive);
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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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mReturnValue = true;
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return NS_OK;
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}
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void
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RemoveTask::HandlerCallback()
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{
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MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
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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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mPromise->MaybeResolve(mReturnValue);
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mPromise = nullptr;
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}
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void
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RemoveTask::GetPermissionAccessType(nsCString& aAccess) const
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{
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aAccess.AssignLiteral("write");
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}
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} // namespace dom
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} // namespace mozilla
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