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// Copyright (c) 2009 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.
#ifndef CHROME_BROWSER_PASSWORD_MANAGER_LOGIN_DATABASE_H_
#define CHROME_BROWSER_PASSWORD_MANAGER_LOGIN_DATABASE_H_
#include <string>
#include <vector>
#include "base/string16.h"
#include "chrome/browser/meta_table_helper.h"
#include "webkit/glue/password_form.h"
class FilePath;
struct sqlite3;
// Base class for database storage of login information, intended as a helper
// for PasswordStore on platforms that need internal storage of some or all of
// the login information.
// Subclasses need to provide EncryptedString and DecryptedString
// implementations, which will be used to encrypt the password in the database.
class LoginDatabase {
public:
LoginDatabase();
virtual ~LoginDatabase();
// Initialize the database with an sqlite file at the given path.
// If false is returned, no other method should be called.
bool Init(const FilePath& db_path);
// Adds |form| to the list of remembered password forms.
bool AddLogin(const webkit_glue::PasswordForm& form);
// Updates remembered password form. Returns true on success and sets
// items_changed (if non-NULL) to the number of logins updated.
bool UpdateLogin(const webkit_glue::PasswordForm& form, int* items_changed);
// Removes |form| from the list of remembered password forms.
bool RemoveLogin(const webkit_glue::PasswordForm& form);
// Removes all logins created from |delete_begin| onwards (inclusive) and
// before |delete_end|. You may use a null Time value to do an unbounded
// delete in either direction.
bool RemoveLoginsCreatedBetween(const base::Time delete_begin,
const base::Time delete_end);
// Loads a list of matching password forms into the specified vector |forms|.
// The list will contain all possibly relevant entries to the observed |form|,
// including blacklisted matches.
bool GetLogins(const webkit_glue::PasswordForm& form,
std::vector<webkit_glue::PasswordForm*>* forms) const;
// Loads the complete list of autofillable password forms (i.e., not blacklist
// entries) into |forms|.
bool GetAutofillableLogins(
std::vector<webkit_glue::PasswordForm*>* forms) const;
// Loads the complete list of blacklist forms into |forms|.
bool GetBlacklistLogins(
std::vector<webkit_glue::PasswordForm*>* forms) const;
protected:
// Returns an encrypted version of plain_text.
virtual std::string EncryptedString(const string16& plain_text) const = 0;
// Returns a decrypted version of cipher_text.
virtual string16 DecryptedString(const std::string& cipher_text)
const = 0;
bool InitLoginsTable();
void MigrateOldVersionsAsNeeded();
private:
// Fills |form| from the values in the given statement (which is assumed to
// be of the form used by the Get*Logins methods).
void InitPasswordFormFromStatement(webkit_glue::PasswordForm* form,
SQLStatement* s) const;
// Loads all logins whose blacklist setting matches |blacklisted| into
// |forms|.
bool GetAllLoginsWithBlacklistSetting(
bool blacklisted, std::vector<webkit_glue::PasswordForm*>* forms) const;
sqlite3* db_;
MetaTableHelper meta_table_;
DISALLOW_COPY_AND_ASSIGN(LoginDatabase);
};
#endif // CHROME_BROWSER_PASSWORD_MANAGER_LOGIN_DATABASE_H_
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