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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/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;
/// Options to create ServerCredentials with SSL
struct SslServerCredentialsOptions {
/// \warning Deprecated
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;
/// \warning Deprecated
bool force_client_auth;
/// If both \a force_client_auth and \a client_certificate_request
/// fields are set, \a force_client_auth takes effect, i.e.
/// \a REQUEST_AND_REQUIRE_CLIENT_CERTIFICATE_AND_VERIFY
/// will be enforced.
grpc_ssl_client_certificate_request_type client_certificate_request;
};
namespace experimental {
/// Builds Xds ServerCredentials given fallback credentials
std::shared_ptr<ServerCredentials> XdsServerCredentials(
const std::shared_ptr<ServerCredentials>& fallback_credentials);
} // namespace experimental
/// Wrapper around \a grpc_server_credentials, a way to authenticate a server.
class ServerCredentials : private grpc::GrpcLibraryCodegen {
public:
ServerCredentials();
~ServerCredentials() override;
/// This method is not thread-safe and has to be called before the server is
/// started. The last call to this function wins.
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::experimental::XdsServerCredentials(
const std::shared_ptr<ServerCredentials>& fallback_credentials);
/// Tries to bind \a server to the given \a addr (eg, localhost:1234,
/// 192.168.1.1:31416, [::1]:27182, etc.)
///
/// \return bound port number on success, 0 on failure.
// 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;
}
};
/// Builds SSL ServerCredentials given SSL specific options
std::shared_ptr<ServerCredentials> SslServerCredentials(
const grpc::SslServerCredentialsOptions& options);
std::shared_ptr<ServerCredentials> InsecureServerCredentials();
namespace experimental {
/// Options to create ServerCredentials with ALTS
struct AltsServerCredentialsOptions {
/// Add fields if needed.
};
/// Builds ALTS ServerCredentials given ALTS specific options
std::shared_ptr<ServerCredentials> AltsServerCredentials(
const AltsServerCredentialsOptions& options);
/// Builds Local ServerCredentials.
std::shared_ptr<ServerCredentials> AltsServerCredentials(
const AltsServerCredentialsOptions& options);
std::shared_ptr<ServerCredentials> LocalServerCredentials(
grpc_local_connect_type type);
/// Builds TLS ServerCredentials given TLS options.
std::shared_ptr<ServerCredentials> TlsServerCredentials(
const experimental::TlsServerCredentialsOptions& options);
} // namespace experimental
} // namespace grpc
#endif // GRPCPP_SECURITY_SERVER_CREDENTIALS_H