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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef CHROME_BROWSER_SAFE_BROWSING_SETTINGS_RESET_PROMPT_SETTINGS_RESET_PROMPT
_CONFIG_H_ |
| 6 #define CHROME_BROWSER_SAFE_BROWSING_SETTINGS_RESET_PROMPT_SETTINGS_RESET_PROMPT
_CONFIG_H_ |
| 7 |
| 8 #include <cstddef> |
| 9 #include <memory> |
| 10 #include <string> |
| 11 #include <unordered_map> |
| 12 #include <vector> |
| 13 |
| 14 #include "base/feature_list.h" |
| 15 #include "base/macros.h" |
| 16 |
| 17 class GURL; |
| 18 |
| 19 namespace safe_browsing { |
| 20 |
| 21 // Exposed for testing. |
| 22 extern const base::Feature kSettingsResetPrompt; |
| 23 |
| 24 // Encapsulates the state of the reset prompt experiment as well as |
| 25 // associated data. |
| 26 class SettingsResetPromptConfig { |
| 27 public: |
| 28 // Returns true if the settings reset prompt study is enabled. |
| 29 static bool IsPromptEnabled(); |
| 30 // Factory method for creating instances of SettingsResetPromptConfig. |
| 31 // Returns nullptr if |IsPromptEnabled()| is false or if something is wrong |
| 32 // with the config parameters. |
| 33 static std::unique_ptr<SettingsResetPromptConfig> Create(); |
| 34 |
| 35 ~SettingsResetPromptConfig(); |
| 36 |
| 37 // Returns a non-negative integer ID if |url| should trigger a |
| 38 // settings reset prompt and a negative integer otherwise. The IDs |
| 39 // identify the domains or entities that we want to prompt the user |
| 40 // for and can be used for metrics reporting. |
| 41 int UrlToResetDomainId(const GURL& url) const; |
| 42 |
| 43 // TODO(alito): parameterize the set of things that we want to reset |
| 44 // for so that we can control it from the finch config. For example, |
| 45 // with functions like HomepageResetAllowed() etc. |
| 46 private: |
| 47 typedef std::vector<uint8_t> SHA256Hash; |
| 48 struct SHA256HashHasher { |
| 49 size_t operator()(const SHA256Hash& key) const; |
| 50 }; |
| 51 enum ConfigError : int; |
| 52 |
| 53 SettingsResetPromptConfig(); |
| 54 bool Init(); |
| 55 ConfigError ParseDomainHashes(const std::string& domain_hashes_json); |
| 56 |
| 57 // Map of 32 byte SHA256 hashes to integer domain IDs. |
| 58 std::unordered_map<SHA256Hash, int, SHA256HashHasher> domain_hashes_; |
| 59 |
| 60 DISALLOW_COPY_AND_ASSIGN(SettingsResetPromptConfig); |
| 61 }; |
| 62 |
| 63 } // namespace safe_browsing |
| 64 |
| 65 #endif // CHROME_BROWSER_SAFE_BROWSING_SETTINGS_RESET_PROMPT_SETTINGS_RESET_PRO
MPT_CONFIG_H_ |
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