1 files changed, 44 insertions, 0 deletions
diff --git a/Firebase/Storage/Private/FIRStorageTokenAuthorizer.h b/Firebase/Storage/Private/FIRStorageTokenAuthorizer.h
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+++ b/Firebase/Storage/Private/FIRStorageTokenAuthorizer.h
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+/*
+ * Copyright 2017 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.
+ */
+
+#import <GTMSessionFetcher/GTMSessionFetcherService.h>
+
+@class FIRApp;
+
+NS_ASSUME_NONNULL_BEGIN
+
+/**
+ * Wrapper class for FIRApp that implements the GTMFetcherAuthorizationProtocol,
+ * so as to easily provide GTMSessionFetcher fetches a Firebase Authentication JWT
+ * for the current logged in user. Handles token expiration and other failure cases.
+ * If no authentication provider exists or no token is found, no token is added
+ * and the request is passed.
+ */
+@interface FIRStorageTokenAuthorizer : NSObject<GTMFetcherAuthorizationProtocol>
+
+/**
+ * Initializes the token authorizer with an instance of FIRApp.
+ * @param app An instance of FIRApp which provides auth tokens.
+ * @return Returns an instance of FIRStorageTokenAuthorizer which adds the appropriate
+ * "Authorization" header to all outbound requests. Note that a token may not be added
+ * if a getTokenImplementation doesn't exist on FIRApp. This allows for unauthenticated
+ * access, if Firebase Storage rules allow for it.
+ */
+- (instancetype)initWithApp:(FIRApp *)app fetcherService:(GTMSessionFetcherService *)service;
+
+@end
+
+NS_ASSUME_NONNULL_END