start of implementation

packages/webview_flutter/webview_flutter_wkwebview/darwin/webview_flutter_wkwebview/Sources/webview_flutter_wkwebview/GetTrustResultResponse.swift

@@ -0,0 +1,19 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Darwin
+
+/// Data class used to respond to `SecTrustGetTrustResult`.
+///
+/// The native method needs to return two values, so this custom class is
+/// created to support this.
+class GetTrustResultResponse {
+  let result: SecTrustResultType
+  let resultCode: OSStatus
+
+  init(result: SecTrustResultType, resultCode: OSStatus) {
+    self.result = result
+    self.resultCode = resultCode
+  }
+}

packages/webview_flutter/webview_flutter_wkwebview/darwin/webview_flutter_wkwebview/Sources/webview_flutter_wkwebview/GetTrustResultResponseProxyAPIDelegate.swift

@@ -0,0 +1,38 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Foundation
+
+/// ProxyApi implementation for `GetTrustResultResponse`.
+///
+/// This class may handle instantiating native object instances that are attached to a Dart instance
+/// or handle method calls on the associated native class or an instance of that class.
+class GetTrustResultResponseProxyAPIDelegate : PigeonApiDelegateGetTrustResultResponse {
+  func result(pigeonApi: PigeonApiGetTrustResultResponse, pigeonInstance: GetTrustResultResponse) throws -> DartSecTrustResultType {
+    switch pigeonInstance.result {
+      case .unspecified:
+        return .unspecified
+      case .proceed:
+        return .proceed
+      case .deny:
+        return .deny
+      case .recoverableTrustFailure:
+        return .recoverableTrustFailure
+      case .fatalTrustFailure:
+        return .fatalTrustFailure
+      case .otherError:
+        return .otherError
+      case .invalid:
+        return .invalid
+      case .confirm:
+        return .confirm
+      @unknown default:
+        return .unknown
+    }
+  }
+
+  func resultCode(pigeonApi: PigeonApiGetTrustResultResponse, pigeonInstance: GetTrustResultResponse) throws -> Int64 {
+    return Int64(pigeonInstance.resultCode)
+  }
+}

packages/webview_flutter/webview_flutter_wkwebview/darwin/webview_flutter_wkwebview/Sources/webview_flutter_wkwebview/ProxyAPIRegistrar.swift

@@ -280,4 +280,16 @@ class ProxyAPIDelegate: WebKitLibraryPigeonProxyApiDelegate {
     return PigeonApiWKWebpagePreferences(
       pigeonRegistrar: registrar, delegate: WebpagePreferencesProxyAPIDelegate())
   }
+
+  func pigeonApiGetTrustResultResponse(_ registrar: WebKitLibraryPigeonProxyApiRegistrar) -> PigeonApiGetTrustResultResponse {
+    return PigeonApiGetTrustResultResponse(pigeonRegistrar: registrar, delegate: GetTrustResultResponseProxyAPIDelegate())
+  }
+
+  func pigeonApiSecTrust(_ registrar: WebKitLibraryPigeonProxyApiRegistrar) -> PigeonApiSecTrust {
+    return PigeonApiSecTrust(pigeonRegistrar: registrar, delegate: SecTrustProxyAPIDelegate())
+  }
+
+  func pigeonApiSecCertificate(_ registrar: WebKitLibraryPigeonProxyApiRegistrar) -> PigeonApiSecCertificate {
+    return PigeonApiSecCertificate(pigeonRegistrar: registrar, delegate: SecCertificateProxyAPIDelegate())
+  }
 }

packages/webview_flutter/webview_flutter_wkwebview/darwin/webview_flutter_wkwebview/Sources/webview_flutter_wkwebview/SecCertificateProxyAPIDelegate.swift

@@ -0,0 +1,25 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#if os(iOS)
+  import Flutter
+  import UIKit
+#elseif os(macOS)
+  import FlutterMacOS
+  import Foundation
+#else
+  #error("Unsupported platform.")
+#endif
+import Foundation
+
+/// ProxyApi implementation for `SecCertificate`.
+///
+/// This class may handle instantiating native object instances that are attached to a Dart instance
+/// or handle method calls on the associated native class or an instance of that class.
+class SecCertificateProxyAPIDelegate : PigeonApiDelegateSecCertificate {
+  func copyData(pigeonApi: PigeonApiSecCertificate, certificate: SecCertificateWrapper) throws -> FlutterStandardTypedData {
+    let data = SecCertificateCopyData(certificate.value)
+    return FlutterStandardTypedData(bytes: data as Data)
+  }
+}

packages/webview_flutter/webview_flutter_wkwebview/darwin/webview_flutter_wkwebview/Sources/webview_flutter_wkwebview/SecTrustProxyAPIDelegate.swift

@@ -0,0 +1,42 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#if os(iOS)
+  import Flutter
+  import UIKit
+#elseif os(macOS)
+  import FlutterMacOS
+  import Foundation
+#else
+  #error("Unsupported platform.")
+#endif
+import Foundation
+
+/// ProxyApi implementation for `SecTrust`.
+///
+/// This class may handle instantiating native object instances that are attached to a Dart instance
+/// or handle method calls on the associated native class or an instance of that class.
+class SecTrustProxyAPIDelegate : PigeonApiDelegateSecTrust {
+  func evaluateWithError(pigeonApi: PigeonApiSecTrust, trust: SecTrustWrapper) throws -> Bool {
+    var error: Unmanaged<CFError>?
+    let result = SecTrustEvaluateWithError(trust.value, &error)
+    return result
+  }
+
+  func copyExceptions(pigeonApi: PigeonApiSecTrust, trust: SecTrustWrapper) throws -> FlutterStandardTypedData {
+    return SecTrust.copyExceptions(trust: trust)
+  }
+
+  func setExceptions(pigeonApi: PigeonApiSecTrust, trust: SecTrustWrapper, exceptions: FlutterStandardTypedData) throws -> Bool {
+    return SecTrust.setExceptions(trust: trust, exceptions: exceptions)
+  }
+
+  func getTrustResult(pigeonApi: PigeonApiSecTrust, trust: SecTrustWrapper) throws -> GetTrustResultResponse {
+    return SecTrust.getTrustResult(trust: trust)
+  }
+
+  func copyCertificateChain(pigeonApi: PigeonApiSecTrust, trust: SecTrustWrapper) throws -> [String] {
+    return SecTrust.copyCertificateChain(trust: trust)
+  }
+}

packages/webview_flutter/webview_flutter_wkwebview/darwin/webview_flutter_wkwebview/Sources/webview_flutter_wkwebview/SecWrappers.swift

@@ -0,0 +1,30 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/// Wrapper for `SecTrust`.
+///
+/// Corefoundation types don't support being casted in Swift and will always succeed
+/// by default. This wrapper is used to make the class compatible with generated pigeon
+/// code. All instances of `SecTrust`should be replaced with this.
+class SecTrustWrapper {
+  let value: SecTrust
+
+  init(value: SecTrust) {
+    self.value = value
+  }
+}
+
+/// Wrapper for `SecCertificate`.
+///
+/// Corefoundation types don't support being casted in Swift and will always succeed
+/// by default. This wrapper is used to make the class compatible with generated pigeon
+/// code. All instances of `SecCertificate`should be replaced with this.
+class SecCertificateWrapper {
+  let value: SecCertificate
+
+  init(value: SecCertificate) {
+    self.value = value
+  }
+}
+

packages/webview_flutter/webview_flutter_wkwebview/darwin/webview_flutter_wkwebview/Sources/webview_flutter_wkwebview/URLProtectionSpaceProxyAPIDelegate.swift

@@ -32,4 +32,12 @@ class URLProtectionSpaceProxyAPIDelegate: PigeonApiDelegateURLProtectionSpace {
   ) throws -> String? {
     return pigeonInstance.authenticationMethod
   }
+
+  func getServerTrust(pigeonApi: PigeonApiURLProtectionSpace, pigeonInstance: URLProtectionSpace) throws -> SecTrustWrapper? {
+    if let serverTrust = pigeonInstance.serverTrust {
+      return SecTrustWrapper(value: serverTrust)
+    }
+
+    return nil
+  }
 }