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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_XZ_EXTRACTOR_H_
#define CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_XZ_EXTRACTOR_H_
#include <string>
#include "chrome/browser/extensions/api/image_writer_private/extraction_properties.h"
#include "chrome/services/file_util/public/mojom/constants.mojom.h"
#include "chrome/services/file_util/public/mojom/file_util_service.mojom.h"
#include "chrome/services/file_util/public/mojom/single_file_extractor.mojom.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace base {
class FilePath;
} // namespace base
namespace extensions {
namespace image_writer {
// .tar.xz archive extractor. Should be called from a SequencedTaskRunner
// context.
class XzExtractor : public chrome::mojom::SingleFileExtractorListener {
public:
static bool IsXzFile(const base::FilePath& image_path);
// Start extracting the archive at |properties.image_path| to
// |properties.temp_dir_path|. A fixed file name is used for an extracted
// image, so a new temporary directory has to be used for every Extract()
// call.
static void Extract(ExtractionProperties properties);
XzExtractor(const XzExtractor&) = delete;
XzExtractor& operator=(const XzExtractor&) = delete;
private:
// This class manages its own lifetime.
explicit XzExtractor(ExtractionProperties properties);
~XzExtractor() override;
// chrome::mojom::SingleFileExtractorListener implementation.
void OnProgress(uint64_t total_bytes, uint64_t progress_bytes) override;
void ExtractImpl();
void OnRemoteFinished(chrome::file_util::mojom::ExtractionResult result);
void RunFailureCallbackAndDeleteThis(const std::string& error_id);
// `service_` is a class member so that the utility process where the actual
// .tar.xz file extraction is performed is kept alive while extraction is in
// progress.
mojo::Remote<chrome::mojom::FileUtilService> service_;
mojo::Remote<chrome::mojom::SingleFileExtractor>
remote_single_file_extractor_;
// Listener receiver.
// This class listens for .tar.xz extraction progress reports from the utility
// process.
mojo::Receiver<chrome::mojom::SingleFileExtractorListener> listener_{this};
ExtractionProperties properties_;
};
} // namespace image_writer
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_XZ_EXTRACTOR_H_
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