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// Copyright (c) 2012 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.
//
// Browser-side interface to analyze zip files for SafeBrowsing download
// protection. The actual zip decoding is performed in a sandboxed utility
// process.
//
// This class lives on the UI thread.
#ifndef CHROME_BROWSER_SAFE_BROWSING_SANDBOXED_ZIP_ANALYZER_H_
#define CHROME_BROWSER_SAFE_BROWSING_SANDBOXED_ZIP_ANALYZER_H_
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/file_path.h"
#include "base/memory/weak_ptr.h"
#include "base/platform_file.h"
#include "content/public/browser/utility_process_host.h"
#include "content/public/browser/utility_process_host_client.h"
namespace base {
class FilePath;
}
namespace IPC {
class Message;
}
namespace safe_browsing {
namespace zip_analyzer {
struct Results;
}
class SandboxedZipAnalyzer : public content::UtilityProcessHostClient {
public:
// Callback that is invoked when the analysis results are ready.
typedef base::Callback<void(const zip_analyzer::Results&)> ResultCallback;
SandboxedZipAnalyzer(const base::FilePath& zip_file,
const ResultCallback& result_callback);
// Posts a task to start the zip analysis in the utility process.
void Start();
private:
virtual ~SandboxedZipAnalyzer();
// Creates the sandboxed utility process and tells it to start analysis.
// Runs on a worker thread.
void AnalyzeInSandbox();
// content::UtilityProcessHostClient implementation.
// These notifications run on the IO thread.
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
// Notification that the utility process is running, and we can now get its
// process handle.
void OnUtilityProcessStarted();
// Notification from the utility process that the zip file has been analyzed,
// with the given results. Runs on the IO thread.
void OnAnalyzeZipFileFinished(const zip_analyzer::Results& results);
// Launches the utility process. Must run on the IO thread.
void StartProcessOnIOThread();
// Runs the caller-supplied callback.
void RunCallback(const zip_analyzer::Results& results);
const base::FilePath zip_file_;
// Once we have opened the file, we store the handle so that we can use it
// once the utility process has launched.
base::PlatformFile zip_platform_file_;
base::WeakPtr<content::UtilityProcessHost> utility_process_host_;
const ResultCallback callback_;
DISALLOW_COPY_AND_ASSIGN(SandboxedZipAnalyzer);
};
} // namespace safe_browsing
#endif // CHROME_BROWSER_SAFE_BROWSING_SANDBOXED_ZIP_ANALYZER_H_
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