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				|  |  | -/*
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				|  |  | - *
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				|  |  | - * Copyright 2015 gRPC authors.
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				|  |  | - *
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				|  |  | - * Licensed under the Apache License, Version 2.0 (the "License");
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				|  |  | - * you may not use this file except in compliance with the License.
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				|  |  | - * You may obtain a copy of the License at
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				|  |  | - *
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				|  |  | - *     http://www.apache.org/licenses/LICENSE-2.0
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				|  |  | - *
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				|  |  | - * Unless required by applicable law or agreed to in writing, software
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				|  |  | - * distributed under the License is distributed on an "AS IS" BASIS,
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				|  |  | - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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				|  |  | - * See the License for the specific language governing permissions and
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				|  |  | - * limitations under the License.
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				|  |  | - *
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				|  |  | - */
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				|  |  | -
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				|  |  | -#ifndef GRPCPP_SECURITY_AUTH_METADATA_PROCESSOR_IMPL_H
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				|  |  | -#define GRPCPP_SECURITY_AUTH_METADATA_PROCESSOR_IMPL_H
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				|  |  | -
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				|  |  | -#include <map>
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				|  |  | -
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				|  |  | -#include <grpcpp/security/auth_context.h>
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				|  |  | -#include <grpcpp/support/status.h>
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				|  |  | -#include <grpcpp/support/string_ref.h>
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				|  |  | -
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				|  |  | -namespace grpc_impl {
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				|  |  | -
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				|  |  | -/// Interface allowing custom server-side authorization based on credentials
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				|  |  | -/// encoded in metadata.  Objects of this type can be passed to
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				|  |  | -/// \a ServerCredentials::SetAuthMetadataProcessor().
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				|  |  | -class AuthMetadataProcessor {
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				|  |  | - public:
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				|  |  | -  typedef std::multimap<grpc::string_ref, grpc::string_ref> InputMetadata;
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				|  |  | -  typedef std::multimap<std::string, std::string> OutputMetadata;
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				|  |  | -
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				|  |  | -  virtual ~AuthMetadataProcessor() {}
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				|  |  | -
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				|  |  | -  /// If this method returns true, the \a Process function will be scheduled in
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				|  |  | -  /// a different thread from the one processing the call.
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				|  |  | -  virtual bool IsBlocking() const { return true; }
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				|  |  | -
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				|  |  | -  /// context is read/write: it contains the properties of the channel peer and
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				|  |  | -  /// it is the job of the Process method to augment it with properties derived
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				|  |  | -  /// from the passed-in auth_metadata.
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				|  |  | -  /// consumed_auth_metadata needs to be filled with metadata that has been
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				|  |  | -  /// consumed by the processor and will be removed from the call.
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				|  |  | -  /// response_metadata is the metadata that will be sent as part of the
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				|  |  | -  /// response.
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				|  |  | -  /// If the return value is not Status::OK, the rpc call will be aborted with
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				|  |  | -  /// the error code and error message sent back to the client.
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				|  |  | -  virtual grpc::Status Process(const InputMetadata& auth_metadata,
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				|  |  | -                               grpc::AuthContext* context,
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				|  |  | -                               OutputMetadata* consumed_auth_metadata,
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				|  |  | -                               OutputMetadata* response_metadata) = 0;
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				|  |  | -};
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				|  |  | -
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				|  |  | -}  // namespace grpc_impl
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				|  |  | -
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				|  |  | -#endif  // GRPCPP_SECURITY_AUTH_METADATA_PROCESSOR_IMPL_H
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