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| 1 // Copyright (c) 2012 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 COMPONENTS_AUTOFILL_BROWSER_PASSWORD_GENERATOR_H_ | |
| 6 #define COMPONENTS_AUTOFILL_BROWSER_PASSWORD_GENERATOR_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/basictypes.h" | |
| 11 #include "base/gtest_prod_util.h" | |
| 12 | |
| 13 namespace autofill { | |
| 14 | |
| 15 // Class to generate random passwords. Currently we just use a generic algorithm | |
| 16 // for all sites, but eventually we can incorporate additional information to | |
| 17 // determine passwords that are likely to be accepted (i.e. use pattern field, | |
| 18 // previous generated passwords, crowdsourcing, etc.) | |
| 19 class PasswordGenerator { | |
| 20 public: | |
| 21 // |max_length| is used as a hint for the generated password's length. | |
| 22 explicit PasswordGenerator(size_t max_length); | |
| 23 ~PasswordGenerator(); | |
| 24 | |
| 25 // Returns a random password such that: | |
| 26 // (1) Each character is guaranteed to be a non-whitespace printable ASCII | |
| 27 // character. | |
| 28 // (2) The generated password will contain AT LEAST one upper case letter, one | |
| 29 // lower case letter, one digit, and EXACTLY one other symbol. | |
| 30 // (3) The password length will be equal to |password_length_| (see comment | |
| 31 // for the constructor). | |
| 32 // Not thread safe. | |
| 33 std::string Generate() const; | |
| 34 | |
| 35 private: | |
| 36 // Unit test also need to access |kDefaultPasswordLength|. | |
| 37 static const size_t kDefaultPasswordLength; | |
| 38 FRIEND_TEST_ALL_PREFIXES(PasswordGeneratorTest, PasswordLength); | |
| 39 | |
| 40 // The length of the generated password. | |
| 41 const size_t password_length_; | |
| 42 | |
| 43 DISALLOW_COPY_AND_ASSIGN(PasswordGenerator); | |
| 44 }; | |
| 45 | |
| 46 } // namespace autofill | |
| 47 | |
| 48 #endif // COMPONENTS_AUTOFILL_BROWSER_PASSWORD_GENERATOR_H_ | |
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