1 files changed, 168 insertions, 0 deletions
diff --git a/dom/webauthn/PublicKeyCredential.cpp b/dom/webauthn/PublicKeyCredential.cpp
new file mode 100644
index 0000000000..a9f40c436b
--- /dev/null
+++ b/dom/webauthn/PublicKeyCredential.cpp
@@ -0,0 +1,168 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/dom/Promise.h"
+#include "mozilla/dom/PublicKeyCredential.h"
+#include "mozilla/dom/WebAuthenticationBinding.h"
+#include "nsCycleCollectionParticipant.h"
+#include "mozilla/dom/AuthenticatorResponse.h"
+#include "mozilla/HoldDropJSObjects.h"
+#include "mozilla/Preferences.h"
+
+#ifdef OS_WIN
+#  include "WinWebAuthnManager.h"
+#endif
+
+#ifdef MOZ_WIDGET_ANDROID
+#  include "mozilla/java/WebAuthnTokenManagerWrappers.h"
+#endif
+
+namespace mozilla::dom {
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(PublicKeyCredential)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(PublicKeyCredential, Credential)
+  tmp->mRawIdCachedObj = nullptr;
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(PublicKeyCredential, Credential)
+  NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
+  NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mRawIdCachedObj)
+NS_IMPL_CYCLE_COLLECTION_TRACE_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(PublicKeyCredential,
+                                                  Credential)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mResponse)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_ADDREF_INHERITED(PublicKeyCredential, Credential)
+NS_IMPL_RELEASE_INHERITED(PublicKeyCredential, Credential)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(PublicKeyCredential)
+NS_INTERFACE_MAP_END_INHERITING(Credential)
+
+PublicKeyCredential::PublicKeyCredential(nsPIDOMWindowInner* aParent)
+    : Credential(aParent), mRawIdCachedObj(nullptr) {
+  mozilla::HoldJSObjects(this);
+}
+
+PublicKeyCredential::~PublicKeyCredential() { mozilla::DropJSObjects(this); }
+
+JSObject* PublicKeyCredential::WrapObject(JSContext* aCx,
+                                          JS::Handle<JSObject*> aGivenProto) {
+  return PublicKeyCredential_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+void PublicKeyCredential::GetRawId(JSContext* aCx,
+                                   JS::MutableHandle<JSObject*> aValue,
+                                   ErrorResult& aRv) {
+  if (!mRawIdCachedObj) {
+    mRawIdCachedObj = mRawId.ToArrayBuffer(aCx);
+    if (!mRawIdCachedObj) {
+      aRv.NoteJSContextException(aCx);
+      return;
+    }
+  }
+  aValue.set(mRawIdCachedObj);
+}
+
+already_AddRefed<AuthenticatorResponse> PublicKeyCredential::Response() const {
+  RefPtr<AuthenticatorResponse> temp(mResponse);
+  return temp.forget();
+}
+
+nsresult PublicKeyCredential::SetRawId(CryptoBuffer& aBuffer) {
+  if (NS_WARN_IF(!mRawId.Assign(aBuffer))) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+  return NS_OK;
+}
+
+void PublicKeyCredential::SetResponse(RefPtr<AuthenticatorResponse> aResponse) {
+  mResponse = aResponse;
+}
+
+/* static */
+already_AddRefed<Promise>
+PublicKeyCredential::IsUserVerifyingPlatformAuthenticatorAvailable(
+    GlobalObject& aGlobal, ErrorResult& aError) {
+  RefPtr<Promise> promise =
+      Promise::Create(xpc::CurrentNativeGlobal(aGlobal.Context()), aError);
+  if (aError.Failed()) {
+    return nullptr;
+  }
+
+// https://w3c.github.io/webauthn/#isUserVerifyingPlatformAuthenticatorAvailable
+//
+// If on latest windows, call system APIs, otherwise return false, as we don't
+// have other UVPAAs available at this time.
+#ifdef OS_WIN
+
+  if (WinWebAuthnManager::IsUserVerifyingPlatformAuthenticatorAvailable()) {
+    promise->MaybeResolve(true);
+    return promise.forget();
+  }
+
+  promise->MaybeResolve(false);
+#elif defined(MOZ_WIDGET_ANDROID)
+  auto result = java::WebAuthnTokenManager::
+      WebAuthnIsUserVerifyingPlatformAuthenticatorAvailable();
+  auto geckoResult = java::GeckoResult::LocalRef(std::move(result));
+  MozPromise<bool, bool, false>::FromGeckoResult(geckoResult)
+      ->Then(GetMainThreadSerialEventTarget(), __func__,
+             [promise](const MozPromise<bool, bool,
+                                        false>::ResolveOrRejectValue& aValue) {
+               if (aValue.IsResolve()) {
+                 promise->MaybeResolve(aValue.ResolveValue());
+               }
+             });
+#else
+  promise->MaybeResolve(false);
+#endif
+  return promise.forget();
+}
+
+/* static */
+already_AddRefed<Promise>
+PublicKeyCredential::IsExternalCTAP2SecurityKeySupported(GlobalObject& aGlobal,
+                                                         ErrorResult& aError) {
+  RefPtr<Promise> promise =
+      Promise::Create(xpc::CurrentNativeGlobal(aGlobal.Context()), aError);
+  if (aError.Failed()) {
+    return nullptr;
+  }
+
+#ifdef OS_WIN
+  if (WinWebAuthnManager::AreWebAuthNApisAvailable()) {
+    promise->MaybeResolve(true);
+  } else {
+    promise->MaybeResolve(Preferences::GetBool("security.webauthn.ctap2"));
+  }
+#elif defined(MOZ_WIDGET_ANDROID)
+  promise->MaybeResolve(false);
+#else
+  promise->MaybeResolve(Preferences::GetBool("security.webauthn.ctap2"));
+#endif
+
+  return promise.forget();
+}
+
+void PublicKeyCredential::GetClientExtensionResults(
+    AuthenticationExtensionsClientOutputs& aResult) {
+  aResult = mClientExtensionOutputs;
+}
+
+void PublicKeyCredential::SetClientExtensionResultAppId(bool aResult) {
+  mClientExtensionOutputs.mAppid.Construct();
+  mClientExtensionOutputs.mAppid.Value() = aResult;
+}
+
+void PublicKeyCredential::SetClientExtensionResultHmacSecret(
+    bool aHmacCreateSecret) {
+  mClientExtensionOutputs.mHmacCreateSecret.Construct();
+  mClientExtensionOutputs.mHmacCreateSecret.Value() = aHmacCreateSecret;
+}
+
+}  // namespace mozilla::dom