[macOS] Add swift program to save certificate (#3311)

images/macos/provision/configuration/add-certificate.swift

@@ -0,0 +1,64 @@
+import Foundation
+import Security
+
+let certInfo: CFDictionary
+
+enum SecurityError: Error {
+    case generalError
+}
+
+func deleteCertificateFromKeyChain(_ certificateLabel: String) -> Bool {
+    let delQuery: [NSString: Any] = [
+        kSecClass: kSecClassCertificate,
+        kSecAttrLabel: certificateLabel,
+    ]
+    let delStatus: OSStatus = SecItemDelete(delQuery as CFDictionary)
+
+    return delStatus == errSecSuccess
+}
+
+func saveCertificateToKeyChain(_ certificate: SecCertificate, certificateLabel: String) throws {
+    SecKeychainSetPreferenceDomain(SecPreferencesDomain.system)
+    deleteCertificateFromKeyChain(certificateLabel)
+
+    let setQuery: [NSString: AnyObject] = [
+        kSecClass: kSecClassCertificate,
+        kSecValueRef: certificate,
+        kSecAttrLabel: certificateLabel as AnyObject,
+        kSecAttrAccessible: kSecAttrAccessibleWhenUnlocked,
+    ]
+    let addStatus: OSStatus = SecItemAdd(setQuery as CFDictionary, nil)
+
+    guard addStatus == errSecSuccess else {
+        throw SecurityError.generalError
+    }
+
+    var status = SecTrustSettingsSetTrustSettings(certificate, SecTrustSettingsDomain.admin, nil)
+}
+
+func getCertificateFromString(stringData: String) throws -> SecCertificate {
+    if let data = NSData(base64Encoded: stringData, options: NSData.Base64DecodingOptions.ignoreUnknownCharacters) {
+        if let certificate = SecCertificateCreateWithData(kCFAllocatorDefault, data) {
+            return certificate
+        }
+    }
+    throw SecurityError.generalError
+}
+
+if CommandLine.arguments.count > 1 {
+    let fileURL = URL(fileURLWithPath: CommandLine.arguments[1])
+    do {
+        let certData = try Data(contentsOf: fileURL)
+        let certificate = SecCertificateCreateWithData(nil, certData as CFData)
+        if certificate != nil {
+            print("Saving certificate")
+            try? saveCertificateToKeyChain(certificate!, certificateLabel: "Test")
+        } else {
+            print("Certificate can't be read")
+        }
+    } catch {
+        print("Unable to read the file \(CommandLine.arguments[1])")
+    }
+} else {
+    print("Usage: \(CommandLine.arguments[0]) [cert.file]")
+}