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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/bind.h"
#include "base/location.h"
#include "base/thread_task_runner_handle.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/extensions/api/image_writer_private/image_writer_utility_client.h"
#include "chrome/common/extensions/chrome_utility_extensions_messages.h"
#include "chrome/grit/generated_resources.h"
#include "content/public/browser/browser_thread.h"
#include "ui/base/l10n/l10n_util.h"
using content::BrowserThread;
ImageWriterUtilityClient::ImageWriterUtilityClient()
: task_runner_(base::ThreadTaskRunnerHandle::Get()) {
}
ImageWriterUtilityClient::~ImageWriterUtilityClient() {}
void ImageWriterUtilityClient::Write(const ProgressCallback& progress_callback,
const SuccessCallback& success_callback,
const ErrorCallback& error_callback,
const base::FilePath& source,
const base::FilePath& target) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
StartHost();
progress_callback_ = progress_callback;
success_callback_ = success_callback;
error_callback_ = error_callback;
if (!Send(new ChromeUtilityMsg_ImageWriter_Write(source, target))) {
DLOG(ERROR) << "Unable to send Write message to Utility Process.";
task_runner_->PostTask(
FROM_HERE, base::Bind(error_callback_, "IPC communication failed"));
}
}
void ImageWriterUtilityClient::Verify(const ProgressCallback& progress_callback,
const SuccessCallback& success_callback,
const ErrorCallback& error_callback,
const base::FilePath& source,
const base::FilePath& target) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
StartHost();
progress_callback_ = progress_callback;
success_callback_ = success_callback;
error_callback_ = error_callback;
if (!Send(new ChromeUtilityMsg_ImageWriter_Verify(source, target))) {
DLOG(ERROR) << "Unable to send Verify message to Utility Process.";
task_runner_->PostTask(
FROM_HERE, base::Bind(error_callback_, "IPC communication failed"));
}
}
void ImageWriterUtilityClient::Cancel(const CancelCallback& cancel_callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (!utility_process_host_) {
// If we haven't connected, there is nothing to cancel.
task_runner_->PostTask(FROM_HERE, cancel_callback);
return;
}
cancel_callback_ = cancel_callback;
if (!Send(new ChromeUtilityMsg_ImageWriter_Cancel())) {
DLOG(ERROR) << "Unable to send Cancel message to Utility Process.";
}
}
void ImageWriterUtilityClient::Shutdown() {
if (utility_process_host_ &&
Send(new ChromeUtilityMsg_ImageWriter_Cancel())) {
utility_process_host_->EndBatchMode();
}
// Clear handlers to not hold any reference to the caller.
success_callback_ = base::Closure();
progress_callback_ = base::Callback<void(int64_t)>();
error_callback_ = base::Callback<void(const std::string&)>();
cancel_callback_ = base::Closure();
}
void ImageWriterUtilityClient::StartHost() {
if (!utility_process_host_) {
scoped_refptr<base::SequencedTaskRunner> task_runner =
base::MessageLoop::current()->task_runner();
utility_process_host_ = content::UtilityProcessHost::Create(
this, task_runner.get())->AsWeakPtr();
utility_process_host_->SetName(l10n_util::GetStringUTF16(
IDS_UTILITY_PROCESS_IMAGE_WRITER_NAME));
#if defined(OS_WIN)
utility_process_host_->ElevatePrivileges();
#else
utility_process_host_->DisableSandbox();
#endif
utility_process_host_->StartBatchMode();
}
}
void ImageWriterUtilityClient::OnProcessCrashed(int exit_code) {
task_runner_->PostTask(
FROM_HERE, base::Bind(error_callback_, "Utility process crashed."));
}
void ImageWriterUtilityClient::OnProcessLaunchFailed() {
task_runner_->PostTask(
FROM_HERE, base::Bind(error_callback_, "Process launch failed."));
}
bool ImageWriterUtilityClient::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(ImageWriterUtilityClient, message)
IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ImageWriter_Succeeded,
OnWriteImageSucceeded)
IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ImageWriter_Cancelled,
OnWriteImageCancelled)
IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ImageWriter_Failed,
OnWriteImageFailed)
IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ImageWriter_Progress,
OnWriteImageProgress)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
bool ImageWriterUtilityClient::Send(IPC::Message* msg) {
return utility_process_host_ && utility_process_host_->Send(msg);
}
void ImageWriterUtilityClient::OnWriteImageSucceeded() {
if (!success_callback_.is_null()) {
task_runner_->PostTask(FROM_HERE, success_callback_);
}
}
void ImageWriterUtilityClient::OnWriteImageCancelled() {
if (!cancel_callback_.is_null()) {
task_runner_->PostTask(FROM_HERE, cancel_callback_);
}
}
void ImageWriterUtilityClient::OnWriteImageFailed(const std::string& message) {
if (!error_callback_.is_null()) {
task_runner_->PostTask(FROM_HERE, base::Bind(error_callback_, message));
}
}
void ImageWriterUtilityClient::OnWriteImageProgress(int64_t progress) {
if (!progress_callback_.is_null()) {
task_runner_->PostTask(FROM_HERE, base::Bind(progress_callback_, progress));
}
}
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