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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.
//
// Utility functions to extract file features for malicious binary detection.
// Each platform has its own implementation of this class.
#ifndef CHROME_BROWSER_SAFE_BROWSING_BINARY_FEATURE_EXTRACTOR_H_
#define CHROME_BROWSER_SAFE_BROWSING_BINARY_FEATURE_EXTRACTOR_H_
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
namespace base {
class FilePath;
}
namespace safe_browsing {
class ClientDownloadRequest_Digests;
class ClientDownloadRequest_ImageHeaders;
class ClientDownloadRequest_SignatureInfo;
class BinaryFeatureExtractor
: public base::RefCountedThreadSafe<BinaryFeatureExtractor> {
public:
BinaryFeatureExtractor();
// Fills in the DownloadRequest_SignatureInfo for the given file path.
// This method may be called on any thread.
virtual void CheckSignature(
const base::FilePath& file_path,
ClientDownloadRequest_SignatureInfo* signature_info);
// Populates |image_headers| with the PE image headers of |file_path|.
virtual void ExtractImageHeaders(
const base::FilePath& file_path,
ClientDownloadRequest_ImageHeaders* image_headers);
// Populates |digests.sha256| with the SHA256 digest of |file_path|.
virtual void ExtractDigest(const base::FilePath& file_path,
ClientDownloadRequest_Digests* digests);
protected:
friend class base::RefCountedThreadSafe<BinaryFeatureExtractor>;
virtual ~BinaryFeatureExtractor();
private:
DISALLOW_COPY_AND_ASSIGN(BinaryFeatureExtractor);
};
} // namespace safe_browsing
#endif // CHROME_BROWSER_SAFE_BROWSING_BINARY_FEATURE_EXTRACTOR_H_
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