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// Copyright 2015 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.
#ifndef CHROME_BROWSER_SAFE_BROWSING_SANDBOXED_DMG_ANALYZER_MAC_H_
#define CHROME_BROWSER_SAFE_BROWSING_SANDBOXED_DMG_ANALYZER_MAC_H_
#include "base/callback.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "content/public/browser/utility_process_host.h"
#include "content/public/browser/utility_process_host_client.h"
namespace safe_browsing {
namespace zip_analyzer {
struct Results;
}
// This class is used to analyze DMG files in a sandboxed utility process for
// file download protection. This class must be created on the UI thread, and
// which is where the result callback will be invoked.
class SandboxedDMGAnalyzer : public content::UtilityProcessHostClient {
public:
// Callback that is invoked when the analysis results are ready.
using ResultsCallback = base::Callback<void(const zip_analyzer::Results&)>;
SandboxedDMGAnalyzer(const base::FilePath& dmg_file,
const ResultsCallback& callback);
// Begins the analysis. This must be called on the UI thread.
void Start();
private:
~SandboxedDMGAnalyzer() override;
// Called on the blocking pool, this opens the DMG file, in preparation for
// sending the FD to the utility process.
void OpenDMGFile();
// Called on the IO thread, this starts the utility process.
void StartAnalysis();
// content::UtilityProcessHostClient:
bool OnMessageReceived(const IPC::Message& message) override;
// Message handler for reply ping when the utility process has started.
void OnUtilityProcessStarted();
// Message handler to receive the results of the analysis. Invokes the
// |callback_|.
void OnAnalysisFinished(const zip_analyzer::Results& results);
const base::FilePath file_path_; // The path of the DMG file.
base::File file_; // The opened file handle for |file_path_|.
// Weak reference to the utility process, which owns this.
base::WeakPtr<content::UtilityProcessHost> utility_process_host_;
const ResultsCallback callback_; // Result callback.
bool callback_called_; // Whether |callback_| has already been invoked.
DISALLOW_COPY_AND_ASSIGN(SandboxedDMGAnalyzer);
};
} // namespace safe_browsing
#endif // CHROME_BROWSER_SAFE_BROWSING_SANDBOXED_DMG_ANALYZER_MAC_H_
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