1 // Copyright (c) 2011 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.
5 #ifndef CHROME_BROWSER_PASSWORD_MANAGER_LOGIN_DATABASE_H_
6 #define CHROME_BROWSER_PASSWORD_MANAGER_LOGIN_DATABASE_H_
11 #include "base/files/file_path.h"
12 #include "base/pickle.h"
13 #include "base/strings/string16.h"
14 #include "components/autofill/core/common/password_form.h"
15 #include "sql/connection.h"
16 #include "sql/meta_table.h"
18 // Interface to the database storage of login information, intended as a helper
19 // for PasswordStore on platforms that need internal storage of some or all of
20 // the login information.
24 virtual ~LoginDatabase();
26 // Initialize the database with an sqlite file at the given path.
27 // If false is returned, no other method should be called.
28 bool Init(const base::FilePath& db_path);
30 // Reports usage metrics to UMA.
33 // Adds |form| to the list of remembered password forms.
34 bool AddLogin(const autofill::PasswordForm& form);
36 // Updates remembered password form. Returns true on success and sets
37 // items_changed (if non-NULL) to the number of logins updated.
38 bool UpdateLogin(const autofill::PasswordForm& form, int* items_changed);
40 // Removes |form| from the list of remembered password forms.
41 bool RemoveLogin(const autofill::PasswordForm& form);
43 // Removes all logins created from |delete_begin| onwards (inclusive) and
44 // before |delete_end|. You may use a null Time value to do an unbounded
45 // delete in either direction.
46 bool RemoveLoginsCreatedBetween(const base::Time delete_begin,
47 const base::Time delete_end);
49 // Loads a list of matching password forms into the specified vector |forms|.
50 // The list will contain all possibly relevant entries to the observed |form|,
51 // including blacklisted matches.
52 bool GetLogins(const autofill::PasswordForm& form,
53 std::vector<autofill::PasswordForm*>* forms) const;
55 // Loads all logins created from |begin| onwards (inclusive) and before |end|.
56 // You may use a null Time value to do an unbounded search in either
58 bool GetLoginsCreatedBetween(
59 const base::Time begin,
61 std::vector<autofill::PasswordForm*>* forms) const;
63 // Loads the complete list of autofillable password forms (i.e., not blacklist
64 // entries) into |forms|.
65 bool GetAutofillableLogins(
66 std::vector<autofill::PasswordForm*>* forms) const;
68 // Loads the complete list of blacklist forms into |forms|.
69 bool GetBlacklistLogins(
70 std::vector<autofill::PasswordForm*>* forms) const;
72 // Deletes the login database file on disk, and creates a new, empty database.
73 // This can be used after migrating passwords to some other store, to ensure
74 // that SQLite doesn't leave fragments of passwords in the database file.
75 // Returns true on success; otherwise, whether the file was deleted and
76 // whether further use of this login database will succeed is unspecified.
77 bool DeleteAndRecreateDatabaseFile();
80 friend class LoginDatabaseTest;
82 // Result values for encryption/decryption actions.
83 enum EncryptionResult {
85 ENCRYPTION_RESULT_SUCCESS,
86 // Failure for a specific item (e.g., the encrypted value was manually
87 // moved from another machine, and can't be decrypted on this machine).
88 // This is presumed to be a permanent failure.
89 ENCRYPTION_RESULT_ITEM_FAILURE,
90 // A service-level failure (e.g., on a platform using a keyring, the keyring
91 // is temporarily unavailable).
92 // This is presumed to be a temporary failure.
93 ENCRYPTION_RESULT_SERVICE_FAILURE,
96 // Encrypts plain_text, setting the value of cipher_text and returning true if
97 // successful, or returning false and leaving cipher_text unchanged if
98 // encryption fails (e.g., if the underlying OS encryption system is
99 // temporarily unavailable).
100 EncryptionResult EncryptedString(const string16& plain_text,
101 std::string* cipher_text) const;
103 // Decrypts cipher_text, setting the value of plain_text and returning true if
104 // successful, or returning false and leaving plain_text unchanged if
105 // decryption fails (e.g., if the underlying OS encryption system is
106 // temporarily unavailable).
107 EncryptionResult DecryptedString(const std::string& cipher_text,
108 string16* plain_text) const;
110 bool InitLoginsTable();
111 bool MigrateOldVersionsAsNeeded();
113 // Fills |form| from the values in the given statement (which is assumed to
114 // be of the form used by the Get*Logins methods).
115 // Returns the EncryptionResult from decrypting the password in |s|; if not
116 // ENCRYPTION_RESULT_SUCCESS, |form| is not filled.
117 EncryptionResult InitPasswordFormFromStatement(autofill::PasswordForm* form,
118 sql::Statement& s) const;
120 // Loads all logins whose blacklist setting matches |blacklisted| into
122 bool GetAllLoginsWithBlacklistSetting(
123 bool blacklisted, std::vector<autofill::PasswordForm*>* forms) const;
125 // Serialization routines for vectors.
126 Pickle SerializeVector(const std::vector<string16>& vec) const;
127 std::vector<string16> DeserializeVector(const Pickle& pickle) const;
129 base::FilePath db_path_;
130 mutable sql::Connection db_;
131 sql::MetaTable meta_table_;
133 // Set to true if the public suffix based domain matching is enabled.
134 bool public_suffix_domain_matching_;
136 DISALLOW_COPY_AND_ASSIGN(LoginDatabase);
139 #endif // CHROME_BROWSER_PASSWORD_MANAGER_LOGIN_DATABASE_H_