// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements.  See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you 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.

#include "brpc/policy/redis_authenticator.h"

#include "butil/base64.h"

#include "butil/iobuf.h"

#include "butil/string_printf.h"

#include "butil/sys_byteorder.h"

#include "brpc/redis_command.h"

namespace brpc {

namespace policy {

int RedisAuthenticator::GenerateCredential(std::string* auth_str) const {

    butil::IOBuf buf;

    if (!passwd_.empty()) {

        brpc::RedisCommandFormat(&buf, "AUTH %s", passwd_.c_str());

    }

    if (db_ >= 0) {

        brpc::RedisCommandFormat(&buf, "SELECT %d", db_);

    }

    *auth_str = buf.to_string();

    return 0;

}

}  // namespace policy

}  // namespace brpc