49 lines
1.9 KiB
Swift
49 lines
1.9 KiB
Swift
import Foundation
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import Security
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enum KeychainStore {
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static func loadString(service: String, account: String) -> String? {
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let query: [String: Any] = [
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kSecClass as String: kSecClassGenericPassword,
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kSecAttrService as String: service,
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kSecAttrAccount as String: account,
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kSecReturnData as String: true,
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kSecMatchLimit as String: kSecMatchLimitOne,
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]
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var item: CFTypeRef?
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let status = SecItemCopyMatching(query as CFDictionary, &item)
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guard status == errSecSuccess, let data = item as? Data else { return nil }
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return String(data: data, encoding: .utf8)
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}
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static func saveString(_ value: String, service: String, account: String) -> Bool {
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let data = Data(value.utf8)
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let query: [String: Any] = [
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kSecClass as String: kSecClassGenericPassword,
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kSecAttrService as String: service,
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kSecAttrAccount as String: account,
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]
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let update: [String: Any] = [kSecValueData as String: data]
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let status = SecItemUpdate(query as CFDictionary, update as CFDictionary)
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if status == errSecSuccess { return true }
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if status != errSecItemNotFound { return false }
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var insert = query
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insert[kSecValueData as String] = data
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insert[kSecAttrAccessible as String] = kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly
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return SecItemAdd(insert as CFDictionary, nil) == errSecSuccess
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}
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static func delete(service: String, account: String) -> Bool {
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let query: [String: Any] = [
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kSecClass as String: kSecClassGenericPassword,
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kSecAttrService as String: service,
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kSecAttrAccount as String: account,
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]
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let status = SecItemDelete(query as CFDictionary)
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return status == errSecSuccess || status == errSecItemNotFound
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}
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}
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