1 // Copyright 2013 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_CORE_BROWSER_PASSWORD_GENERATOR_H_ 6 #define COMPONENTS_AUTOFILL_CORE_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(int 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, and one digit. 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 int kDefaultPasswordLength; 38 FRIEND_TEST_ALL_PREFIXES(PasswordGeneratorTest, PasswordLength); 39 40 // The length of the generated password. 41 const int password_length_; 42 43 DISALLOW_COPY_AND_ASSIGN(PasswordGenerator); 44 }; 45 46 } // namespace autofill 47 48 #endif // COMPONENTS_AUTOFILL_CORE_BROWSER_PASSWORD_GENERATOR_H_ 49
