72 lines
3.1 KiB
Swift
72 lines
3.1 KiB
Swift
//
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// Copyright 2025 New Vector Ltd.
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//
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// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
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// Please see LICENSE files in the repository root for full details.
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//
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import Foundation
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import KeychainAccess
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import MatrixRustSDK
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protocol ClassicAppManagerProtocol {
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func loadAccounts() throws -> [ClassicAppAccount]
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}
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enum ClassicAppManagerError: Error {
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case invalidAppGroupIdentifier(String)
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case missingAccountKeys
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case missingCryptoStorePassphrase
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}
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/// Reads accounts from Element Classic's shared storage.
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final class ClassicAppManager: ClassicAppManagerProtocol {
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private enum KeychainKeys: String {
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case cryptoSDKStoreKey
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case accountIV = "accountIv"
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case accountAESKey = "accountAesKey"
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}
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private let classicAppGroupIdentifier: String
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private let keychain: Keychain
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/// Creates an instance using the Classic app identifiers specified in the `Info.plist` file.
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/// Returns `nil` when a Classic app has not been configured in the project.
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init?(classicAppGroupIdentifier: String? = InfoPlistReader.main.classicAppGroupIdentifier,
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classicAppKeychainServiceIdentifier: String? = InfoPlistReader.main.classicAppKeychainServiceIdentifier,
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classicAppKeychainAccessGroupIdentifier: String? = InfoPlistReader.main.classicAppKeychainAccessGroupIdentifier) {
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guard let classicAppGroupIdentifier, let classicAppKeychainServiceIdentifier, let classicAppKeychainAccessGroupIdentifier else {
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MXLog.info("Classic App IDs not available, skipping initialisation.")
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return nil
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}
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self.classicAppGroupIdentifier = classicAppGroupIdentifier
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keychain = Keychain(service: classicAppKeychainServiceIdentifier, accessGroup: classicAppKeychainAccessGroupIdentifier)
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}
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/// Loads all of the active accounts from the Classic app.
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func loadAccounts() throws -> [ClassicAppAccount] {
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// The account data is stored in the App Group container.
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guard let url = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: classicAppGroupIdentifier) else {
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throw ClassicAppManagerError.invalidAppGroupIdentifier(classicAppGroupIdentifier)
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}
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// And the data is encrypted with keys that are stored in the Keychain.
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guard let accountIV = try keychain.getData(KeychainKeys.accountIV.rawValue),
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let accountAESKey = try keychain.getData(KeychainKeys.accountAESKey.rawValue) else {
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throw ClassicAppManagerError.missingAccountKeys
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}
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guard let cryptoStorePassphrase = try keychain.getData(KeychainKeys.cryptoSDKStoreKey.rawValue) else {
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throw ClassicAppManagerError.missingCryptoStorePassphrase
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}
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let accountManager = ClassicAppAccountManager(cacheFolder: url,
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aesKey: accountAESKey,
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iv: accountIV,
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cryptoStorePassphrase: cryptoStorePassphrase)
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accountManager.loadAccounts()
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return accountManager.accounts
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}
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}
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