ios/components/credential_provider_extension/password_util.h

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef IOS_COMPONENTS_CREDENTIAL_PROVIDER_EXTENSION_PASSWORD_UTIL_H_
#define IOS_COMPONENTS_CREDENTIAL_PROVIDER_EXTENSION_PASSWORD_UTIL_H_

#import <Foundation/Foundation.h>

namespace credential_provider_extension {

// Struct used to contain information associated with a Google Account.
struct AccountInfo {
  NSString* gaia;
  NSString* email;
};

// Queries Keychain Services for the passed identifier password.
// Returns nil if `identifier` is nil or if no password found for `identifier`.
NSString* PasswordWithKeychainIdentifier(NSString* identifier);

// Stores `password` in Keychain Services using `identifier` as its identifier
// for later query. Returns `YES` if saving was successful and `NO` otherwise.
BOOL StorePasswordInKeychain(NSString* password, NSString* identifier);

// Queries Keychain Services for the stored account info (gaia and email).
// Returns nil if no info is found.
AccountInfo LoadAccountInfoFromKeychain();

// Stores `gaia` and `user_email` in Keychain Services by encoding them with
// `archiver`. Returns `YES` if saving was successful and `NO` otherwise.
BOOL StoreAccountInfoInKeychain(NSString* gaia, NSString* user_email);

}  // namespace credential_provider_extension

#endif  // IOS_COMPONENTS_CREDENTIAL_PROVIDER_EXTENSION_PASSWORD_UTIL_H_