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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
#include "FileCreatorParent.h"
#include "mozilla/dom/FileBlobImpl.h"
#include "mozilla/dom/IPCBlobUtils.h"
#include "mozilla/dom/MultipartBlobImpl.h"
#include "nsIFile.h"
namespace mozilla::dom {
FileCreatorParent::FileCreatorParent()
: mBackgroundEventTarget(GetCurrentSerialEventTarget()), mIPCActive(true) {}
FileCreatorParent::~FileCreatorParent() = default;
mozilla::ipc::IPCResult FileCreatorParent::CreateAndShareFile(
const nsAString& aFullPath, const nsAString& aType, const nsAString& aName,
const Maybe<int64_t>& aLastModified, const bool& aExistenceCheck,
const bool& aIsFromNsIFile) {
RefPtr<dom::BlobImpl> blobImpl;
nsresult rv =
CreateBlobImpl(aFullPath, aType, aName, aLastModified.isSome(),
aLastModified.isSome() ? aLastModified.value() : 0,
aExistenceCheck, aIsFromNsIFile, getter_AddRefs(blobImpl));
if (NS_WARN_IF(NS_FAILED(rv))) {
(void)Send__delete__(this, FileCreationErrorResult(rv));
return IPC_OK();
}
MOZ_ASSERT(blobImpl);
// FileBlobImpl is unable to return the correct type on this thread because
// nsIMIMEService is not thread-safe. We must exec the 'type' getter on
// main-thread before send the blob to the child actor.
RefPtr<FileCreatorParent> self = this;
NS_DispatchToMainThread(NS_NewRunnableFunction(
"FileCreatorParent::CreateAndShareFile", [self, blobImpl]() {
nsAutoString type;
blobImpl->GetType(type);
self->mBackgroundEventTarget->Dispatch(NS_NewRunnableFunction(
"FileCreatorParent::CreateAndShareFile return", [self, blobImpl]() {
if (self->mIPCActive) {
IPCBlob ipcBlob;
nsresult rv = dom::IPCBlobUtils::Serialize(blobImpl, ipcBlob);
if (NS_WARN_IF(NS_FAILED(rv))) {
(void)Send__delete__(self, FileCreationErrorResult(rv));
return;
}
(void)Send__delete__(self, FileCreationSuccessResult(ipcBlob));
}
}));
}));
return IPC_OK();
}
void FileCreatorParent::ActorDestroy(ActorDestroyReason aWhy) {
mIPCActive = false;
}
/* static */
nsresult FileCreatorParent::CreateBlobImpl(
const nsAString& aPath, const nsAString& aType, const nsAString& aName,
bool aLastModifiedPassed, int64_t aLastModified, bool aExistenceCheck,
bool aIsFromNsIFile, BlobImpl** aBlobImpl) {
MOZ_ASSERT(!NS_IsMainThread());
nsCOMPtr<nsIFile> file;
nsresult rv = NS_NewLocalFile(aPath, true, getter_AddRefs(file));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
bool exists;
rv = file->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (aExistenceCheck) {
if (!exists) {
return NS_ERROR_FILE_NOT_FOUND;
}
bool isDir;
rv = file->IsDirectory(&isDir);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (isDir) {
return NS_ERROR_FILE_IS_DIRECTORY;
}
}
RefPtr<FileBlobImpl> impl = new FileBlobImpl(file);
// If the file doesn't exist, we cannot have its path, its size and so on.
// Let's set them now.
if (!exists) {
MOZ_ASSERT(!aExistenceCheck);
impl->SetMozFullPath(aPath);
impl->SetLastModified(0);
impl->SetEmptySize();
}
if (!aName.IsEmpty()) {
impl->SetName(aName);
}
if (!aType.IsEmpty()) {
impl->SetType(aType);
}
if (aLastModifiedPassed) {
impl->SetLastModified(aLastModified);
}
if (!aIsFromNsIFile) {
impl->SetMozFullPath(u""_ns);
}
impl.forget(aBlobImpl);
return NS_OK;
}
} // namespace mozilla::dom