chrome/browser/safe_browsing/safe_browsing_api_handler_util.h

// 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.
//
// Helper functions for SafeBrowsingApiHandlerImpl.  Separated out for tests.

#ifndef CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_API_HANDLER_UTIL_H_
#define CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_API_HANDLER_UTIL_H_

#include <string>

#include "chrome/browser/safe_browsing/safe_browsing_util.h"

namespace safe_browsing {

// These match what SafeBrowsingApiHandler.java uses for |resultStatus|
enum RemoteCallResultStatus {
  RESULT_STATUS_INTERNAL_ERROR = -1,
  RESULT_STATUS_SUCCESS = 0,
  RESULT_STATUS_TIMEOUT = 1,
};

// Threat types as per the Java code.
// This must match those in GMS's SafeBrowsingThreatTypes.java.
enum JavaThreatTypes {
  JAVA_THREAT_TYPE_POTENTIALLY_HARMFUL_APPLICATION = 4,
  JAVA_THREAT_TYPE_SOCIAL_ENGINEERING = 5,
};

// Do not reorder or delete entries, and make sure changes here are reflected
// in SB2RemoteCallResult histogram.
enum UmaRemoteCallResult {
  UMA_STATUS_INTERNAL_ERROR = 0,
  UMA_STATUS_TIMEOUT = 1,
  UMA_STATUS_SAFE = 2,
  UMA_STATUS_UNSAFE = 3,
  UMA_STATUS_JSON_EMPTY = 4,
  UMA_STATUS_JSON_FAILED_TO_PARSE = 5,
  UMA_STATUS_JSON_UNKNOWN_THREAT = 6,
  UMA_STATUS_UNSUPPORTED = 7,
  UMA_STATUS_MAX_VALUE
};

// This parses the JSON from the GMSCore API and then:
//   1) Picks the most severe threat type
//   2) Parses remaining key/value pairs into a MalwarePatternType PB
//      so DisplayBlockingPage() can unmarshal it.  We make this string
//      is binary compatible with the Pver3 API's metadata string even
//      though it comes from Pver4.
//
// If anything fails to parse, this sets the threat to "safe".  The caller
// should report the return value via UMA.
UmaRemoteCallResult ParseJsonToThreatAndPB(const std::string& metadata_str,
                                           SBThreatType* worst_threat,
                                           std::string* metadata_pb_str);
}  // namespace safe_browsing

#endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_API_HANDLER_UTIL_H_