server_credentials.h

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//
//
// 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.
//
//
 
#ifndef GRPCPP_SECURITY_SERVER_CREDENTIALS_H
#define GRPCPP_SECURITY_SERVER_CREDENTIALS_H
 
#include <memory>
#include <vector>
 
#include <grpc/grpc_security_constants.h>
#include <grpcpp/impl/grpc_library.h>
#include <grpcpp/security/auth_metadata_processor.h>
#include <grpcpp/security/tls_credentials_options.h>
#include <grpcpp/support/config.h>
 
struct grpc_server;
 
namespace grpc {
 
class Server;
class ServerCredentials;
class SecureServerCredentials;
struct SslServerCredentialsOptions {
  SslServerCredentialsOptions()
      : force_client_auth(false),
        client_certificate_request(GRPC_SSL_DONT_REQUEST_CLIENT_CERTIFICATE) {}
  explicit SslServerCredentialsOptions(
      grpc_ssl_client_certificate_request_type request_type)
      : force_client_auth(false), client_certificate_request(request_type) {}
 
  struct PemKeyCertPair {
    std::string private_key;
    std::string cert_chain;
  };
  std::string pem_root_certs;
  std::vector<PemKeyCertPair> pem_key_cert_pairs;
  bool force_client_auth;
 
  grpc_ssl_client_certificate_request_type client_certificate_request;
};
 
std::shared_ptr<ServerCredentials> XdsServerCredentials(
    const std::shared_ptr<ServerCredentials>& fallback_credentials);
 
class ServerCredentials : private grpc::internal::GrpcLibrary {
 public:
  virtual void SetAuthMetadataProcessor(
      const std::shared_ptr<grpc::AuthMetadataProcessor>& processor) = 0;
 
 private:
  friend class Server;
 
  // We need this friend declaration for access to Insecure() and
  // AsSecureServerCredentials(). When these two functions are no longer
  // necessary, this friend declaration can be removed too.
  friend std::shared_ptr<ServerCredentials> grpc::XdsServerCredentials(
      const std::shared_ptr<ServerCredentials>& fallback_credentials);
 
  // TODO(dgq): the "port" part seems to be a misnomer.
  virtual int AddPortToServer(const std::string& addr, grpc_server* server) = 0;
 
  // TODO(yashykt): This is a hack since InsecureServerCredentials() cannot use
  // grpc_insecure_server_credentials_create() and should be removed after
  // insecure builds are removed from gRPC.
  virtual bool IsInsecure() const { return false; }
 
  // TODO(yashkt): This is a hack that should be removed once we remove insecure
  // builds and the indirect method of adding ports to a server.
  virtual SecureServerCredentials* AsSecureServerCredentials() {
    return nullptr;
  }
};
 
std::shared_ptr<ServerCredentials> SslServerCredentials(
    const grpc::SslServerCredentialsOptions& options);
 
std::shared_ptr<ServerCredentials> InsecureServerCredentials();
 
namespace experimental {
 
struct AltsServerCredentialsOptions {
};
 
std::shared_ptr<ServerCredentials> AltsServerCredentials(
    const AltsServerCredentialsOptions& options);
 
std::shared_ptr<ServerCredentials> AltsServerCredentials(
    const AltsServerCredentialsOptions& options);
 
std::shared_ptr<ServerCredentials> LocalServerCredentials(
    grpc_local_connect_type type);
 
std::shared_ptr<ServerCredentials> TlsServerCredentials(
    const experimental::TlsServerCredentialsOptions& options);
 
}  // namespace experimental
}  // namespace grpc
 
#endif  // GRPCPP_SECURITY_SERVER_CREDENTIALS_H