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63 lines
2.2 KiB
C++
63 lines
2.2 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#pragma once
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#include <string>
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#include "arrow/flight/visibility.h"
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#include "arrow/status.h"
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namespace arrow {
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namespace flight {
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/// \brief A reader for messages from the server during an
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/// authentication handshake.
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class ARROW_FLIGHT_EXPORT ClientAuthReader {
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public:
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virtual ~ClientAuthReader() = default;
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virtual Status Read(std::string* response) = 0;
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};
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/// \brief A writer for messages to the server during an
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/// authentication handshake.
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class ARROW_FLIGHT_EXPORT ClientAuthSender {
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public:
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virtual ~ClientAuthSender() = default;
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virtual Status Write(const std::string& token) = 0;
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};
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/// \brief An authentication implementation for a Flight service.
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/// Authentication includes both an initial negotiation and a per-call
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/// token validation. Implementations may choose to use either or both
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/// mechanisms.
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class ARROW_FLIGHT_EXPORT ClientAuthHandler {
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public:
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virtual ~ClientAuthHandler() = default;
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/// \brief Authenticate the client on initial connection. The client
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/// can send messages to/read responses from the server at any time.
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/// \return Status OK if authenticated successfully
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virtual Status Authenticate(ClientAuthSender* outgoing, ClientAuthReader* incoming) = 0;
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/// \brief Get a per-call token.
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/// \param[out] token The token to send to the server.
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virtual Status GetToken(std::string* token) = 0;
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};
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} // namespace flight
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} // namespace arrow
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