port Firestore Auth module in C++ (#733)

* Implement firestore/auth/user

* add user to project and some fixes

* implement firestore/auth/{credentials_provider,empty_credentials_provider}

* implement firestore/auth/firebase_credentials_provider

* refactoring firebase_credentials_provider and add (disabled but working) unit test

* add auth test to project

* address changes

* small fix to style and project

* fix the firebase_credentials_provider_test

* fix style

* address changes

* revert the change to static mutex_

* remove my custom plist path

* fix style

* address changes

* refactoring FirebaseCredentialsProvider to fix the issue w.r.t. auth global dispatch queue

* add /*force_refresh=*/ tag to bool literal for style purpose

* Use a shared_ptr/weak_ptr handoff on FirebaseCredentialsProvider (#778)

* Revert "refactoring FirebaseCredentialsProvider to fix the issue w.r.t. auth global dispatch queue"

This reverts commit 87175a4146267d403a774f138b85f8d3b532fa4b.

* Use a shared_ptr/weak_ptr handoff on FirebaseCredentialsProvider

This avoids any problems with callsbacks retaining pointers to objects
destroyed by a C++ destructor

1 files changed, 37 insertions, 0 deletions

diff --git a/Firestore/core/src/firebase/firestore/auth/empty_credentials_provider.h b/Firestore/core/src/firebase/firestore/auth/empty_credentials_provider.h
new file mode 100644
index 0000000..55b3cc6
--- /dev/null
+++ b/Firestore/core/src/firebase/firestore/auth/empty_credentials_provider.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2018 Google
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_AUTH_EMPTY_CREDENTIALS_PROVIDER_H_
+#define FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_AUTH_EMPTY_CREDENTIALS_PROVIDER_H_
+
+#include "Firestore/core/src/firebase/firestore/auth/credentials_provider.h"
+
+namespace firebase {
+namespace firestore {
+namespace auth {
+
+/** `EmptyCredentialsProvider` always yields an empty token. */
+class EmptyCredentialsProvider : public CredentialsProvider {
+ public:
+  void GetToken(bool force_refresh, TokenListener completion) override;
+  void SetUserChangeListener(UserChangeListener listener) override;
+};
+
+}  // namespace auth
+}  // namespace firestore
+}  // namespace firebase
+
+#endif  // FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_AUTH_EMPTY_CREDENTIALS_PROVIDER_H_