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1 : // 2 : // SwiftySimpleKeychain+Delete.swift 3 : // SwiftySimpleKeychain 4 : // 5 : // Copyright (c) 2022 Ezequiel (Kimi) Aceto (https://eaceto.dev). Based on Auth0's SimpleKeychain 6 : // 7 : // Permission is hereby granted, free of charge, to any person obtaining a copy 8 : // of this software and associated documentation files (the "Software"), to deal 9 : // in the Software without restriction, including without limitation the rights 10 : // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 : // copies of the Software, and to permit persons to whom the Software is 12 : // furnished to do so, subject to the following conditions: 13 : // 14 : // The above copyright notice and this permission notice shall be included in 15 : // all copies or substantial portions of the Software. 16 : // 17 : // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 : // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 : // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 20 : // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 : // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 : // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 : // THE SOFTWARE. 24 : 25 : #if canImport(Foundation) 26 : import Foundation 27 : #endif 28 : 29 : public extension SwiftySimpleKeychain { 30 : 31 : /** 32 : * Deletes an entry in the Keychain with the given **key** 33 : * 34 : * - Parameter key: Identifier of the entry 35 : * - Returns **true** if the key exists and it could be deleted 36 : */ 37 2 : func deleteEntry(for key: String) -> Bool { 38 2 : if key.isEmpty { return false } 39 2 : let deleteQuery = queryFind(by: key) 40 2 : let status = SecItemDelete(deleteQuery as CFDictionary) 41 2 : return status == errSecSuccess 42 2 : } 43 : 44 : /** 45 : * Deletes all entries in the Keychain 46 : * Aborts if there is an error deleting one item. 47 : */ 48 1 : func clearAll() { 49 1 : #if os(iOS) 50 1 : let query = queryFindAll() 51 1 : var result: CFTypeRef? 52 1 : let status = SecItemCopyMatching(query as CFDictionary, &result) 53 1 : if status == errSecSuccess || status == errSecItemNotFound { 54 1 : guard let result = result, let items = result as? [[String: Any]] else { 55 1 : return 56 1 : } 57 1 : for item in items { 58 1 : var queryDelete = item 59 1 : queryDelete[kSecClass as String] = kSecClassGenericPassword 60 1 : let status = SecItemDelete(queryDelete as CFDictionary) 61 1 : if status != errSecSuccess { 62 1 : debugPrint("Could not delete item: \(item)") 63 1 : return 64 1 : } 65 1 : } 66 1 : } 67 1 : #else 68 1 : var queryDelete = baseQuery() 69 1 : queryDelete[kSecClass as String] = kSecClassGenericPassword 70 1 : queryDelete[kSecMatchLimit as String] = kSecMatchLimitAll 71 1 : let status = SecItemDelete(queryDelete as CFDictionary) 72 1 : if status != errSecSuccess { 73 0 : debugPrint("Could not delete: \(queryDelete)") 74 1 : } 75 1 : #endif 76 1 : } 77 : }