chromium/third_party/grpc/src/src/core/lib/security/credentials/tls/grpc_tls_certificate_verifier.h

//
// Copyright 2021 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 GRPC_SRC_CORE_LIB_SECURITY_CREDENTIALS_TLS_GRPC_TLS_CERTIFICATE_VERIFIER_H
#define GRPC_SRC_CORE_LIB_SECURITY_CREDENTIALS_TLS_GRPC_TLS_CERTIFICATE_VERIFIER_H

#include <grpc/support/port_platform.h>

#include <functional>
#include <map>

#include "absl/base/thread_annotations.h"
#include "absl/status/status.h"

#include <grpc/grpc_security.h>
#include <grpc/status.h>
#include <grpc/support/log.h>

#include "src/core/lib/gpr/useful.h"
#include "src/core/lib/gprpp/ref_counted.h"
#include "src/core/lib/gprpp/sync.h"
#include "src/core/lib/gprpp/unique_type_name.h"

// An abstraction of the verifier that all verifier subclasses should extend.
struct grpc_tls_certificate_verifier
    : public grpc_core::RefCounted<grpc_tls_certificate_verifier> { … };

namespace grpc_core {

// A verifier that will transform grpc_tls_certificate_verifier_external to a
// verifier that extends grpc_tls_certificate_verifier.
class ExternalCertificateVerifier : public grpc_tls_certificate_verifier { … };

// An internal verifier that won't perform any post-handshake checks.
// Note: using this solely without any other authentication mechanisms on the
// peer identity will leave your applications to the MITM(Man-In-The-Middle)
// attacks. Users should avoid doing so in production environments.
class NoOpCertificateVerifier : public grpc_tls_certificate_verifier { … };

// An internal verifier that will perform hostname verification check.
class HostNameCertificateVerifier : public grpc_tls_certificate_verifier { … };

}  // namespace grpc_core

#endif  // GRPC_SRC_CORE_LIB_SECURITY_CREDENTIALS_TLS_GRPC_TLS_CERTIFICATE_VERIFIER_H