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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 COMPONENTS_FEEDBACK_ANONYMIZER_TOOL_H_
#define COMPONENTS_FEEDBACK_ANONYMIZER_TOOL_H_
#include <map>
#include <string>
#include <vector>
#include <base/macros.h>
namespace feedback {
class AnonymizerTool {
public:
AnonymizerTool();
~AnonymizerTool();
// Returns an anonymized version of |input|. PII-sensitive data (such as MAC
// addresses) in |input| is replaced with unique identifiers.
std::string Anonymize(const std::string& input);
private:
friend class AnonymizerToolTest;
std::string AnonymizeMACAddresses(const std::string& input);
std::string AnonymizeCustomPatterns(std::string input);
static std::string AnonymizeCustomPattern(
const std::string& input,
const std::string& pattern,
std::map<std::string, std::string>* identifier_space);
// Map of MAC addresses discovered in anonymized strings to anonymized
// representations. 11:22:33:44:55:66 gets anonymized to 11:22:33:00:00:01,
// where the first three bytes represent the manufacturer. The last three
// bytes are used to distinguish different MAC addresses and are incremented
// for each newly discovered MAC address.
std::map<std::string, std::string> mac_addresses_;
// Like mac addresses, identifiers in custom patterns are anonymized.
// custom_patterns_[i] contains a map of original identifier to anonymized
// identifier for custom pattern number i.
std::vector<std::map<std::string, std::string>> custom_patterns_;
DISALLOW_COPY_AND_ASSIGN(AnonymizerTool);
};
} // namespace feedback
#endif // COMPONENTS_FEEDBACK_ANONYMIZER_TOOL_H_
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