| /* |
| * |
| * Copyright 2015 gRPC authors. |
| * |
| * 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 "GRPCCall.h" |
| |
| /** |
| * The protocol of an OAuth2 token object from which GRPCCall can acquire a token. |
| */ |
| @protocol GRPCAuthorizationProtocol |
| - (void)getTokenWithHandler:(void (^)(NSString *token))hander; |
| @end |
| |
| /** Helpers for setting and reading headers compatible with OAuth2. */ |
| @interface GRPCCall (OAuth2) |
| |
| /** |
| * Setting this property is equivalent to setting "Bearer <passed token>" as the value of the |
| * request header with key "authorization" (the authorization header). Setting it to nil removes the |
| * authorization header from the request. |
| * The value obtained by getting the property is the OAuth2 bearer token if the authorization header |
| * of the request has the form "Bearer <token>", or nil otherwise. |
| */ |
| @property(atomic, copy) NSString *oauth2AccessToken; |
| |
| /** Returns the value (if any) of the "www-authenticate" response header (the challenge header). */ |
| @property(atomic, readonly) NSString *oauth2ChallengeHeader; |
| |
| /** |
| * The authorization token object to be used when starting the call. If the value is set to nil, no |
| * oauth authentication will be used. |
| * |
| * If tokenProvider exists, it takes precedence over the token set by oauth2AccessToken. |
| */ |
| @property(atomic, strong) id<GRPCAuthorizationProtocol> tokenProvider; |
| |
| @end |