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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_SERVICES_UNZIP_UNZIPPER_IMPL_H_
#define COMPONENTS_SERVICES_UNZIP_UNZIPPER_IMPL_H_
#include "base/files/file.h"
#include "base/functional/callback_forward.h"
#include "base/memory/weak_ptr.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/thread_pool.h"
#include "components/services/storage/public/cpp/filesystem/filesystem_impl.h"
#include "components/services/unzip/public/mojom/unzipper.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace unzip {
class UnzipperImpl : public mojom::Unzipper {
public:
// Constructs an UnzipperImpl which will be bound to some externally owned
// Receiver, such as through |mojo::MakeSelfOwnedReceiver()|.
UnzipperImpl();
// Constructs an UnzipperImpl bound to |receiver|.
explicit UnzipperImpl(mojo::PendingReceiver<mojom::Unzipper> receiver);
UnzipperImpl(const UnzipperImpl&) = delete;
UnzipperImpl& operator=(const UnzipperImpl&) = delete;
static void Listener(const mojo::Remote<mojom::UnzipListener>& listener,
uint64_t bytes);
~UnzipperImpl() override;
private:
// unzip::mojom::Unzipper:
void Unzip(base::File zip_file,
mojo::PendingRemote<storage::mojom::Directory> output_dir_remote,
mojom::UnzipOptionsPtr options,
mojo::PendingRemote<mojom::UnzipFilter> filter_remote,
mojo::PendingRemote<mojom::UnzipListener> listener_remote,
UnzipCallback callback) override;
void DetectEncoding(base::File zip_file,
DetectEncodingCallback callback) override;
void GetExtractedInfo(base::File zip_file,
GetExtractedInfoCallback callback) override;
void DecodeXz(base::File in_file,
base::File out_file,
base::OnceCallback<void(bool)> callback) override;
// Disconnect handler for the receiver.
void OnReceiverDisconnect();
// Task runner for ZIP extraction.
using RunnerPtr = scoped_refptr<base::SequencedTaskRunner>;
const RunnerPtr runner_ = base::ThreadPool::CreateSequencedTaskRunner(
{base::MayBlock(), base::WithBaseSyncPrimitives(),
base::TaskPriority::USER_BLOCKING,
base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN});
mojo::Receiver<mojom::Unzipper> receiver_{this};
base::WeakPtrFactory<UnzipperImpl> weak_ptr_factory_{this};
};
} // namespace unzip
#endif // COMPONENTS_SERVICES_UNZIP_UNZIPPER_IMPL_H_
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