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/*
 * Copyright 2008-present MongoDB, Inc.
 *
 * 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.
 */
package com.mongodb.internal.connection;

import com.mongodb.MongoCommandException;
import com.mongodb.MongoSecurityException;
import com.mongodb.async.SingleResultCallback;
import com.mongodb.connection.ConnectionDescription;
import org.bson.BsonDocument;
import org.bson.BsonString;
import static com.mongodb.internal.authentication.NativeAuthenticationHelper.getAuthCommand;
import static com.mongodb.internal.authentication.NativeAuthenticationHelper.getNonceCommand;
import static com.mongodb.internal.connection.CommandHelper.executeCommand;
import static com.mongodb.internal.connection.CommandHelper.executeCommandAsync;

// @deprecated Usage of this API is not supported in AEM as a Cloud Service.
@Deprecated(since = "2021-05-27")
class NativeAuthenticator extends Authenticator {

    NativeAuthenticator(final MongoCredentialWithCache credential) {
        super(credential);
    }

    @Override
    public void authenticate(final InternalConnection connection, final ConnectionDescription connectionDescription) {
        try {
            BsonDocument nonceResponse = executeCommand(getMongoCredential().getSource(), getNonceCommand(), connection);
            BsonDocument authCommand = getAuthCommand(getUserNameNonNull(), getPasswordNonNull(), ((BsonString) nonceResponse.get("nonce")).getValue());
            executeCommand(getMongoCredential().getSource(), authCommand, connection);
        } catch (MongoCommandException e) {
            throw new MongoSecurityException(getMongoCredential(), "Exception authenticating", e);
        }
    }

    @Override
    void authenticateAsync(final InternalConnection connection, final ConnectionDescription connectionDescription, final SingleResultCallback callback) {
        executeCommandAsync(getMongoCredential().getSource(), getNonceCommand(), connection, new SingleResultCallback() {

            @Override
            public void onResult(final BsonDocument nonceResult, final Throwable t) {
                if (t != null) {
                    callback.onResult(null, translateThrowable(t));
                } else {
                    executeCommandAsync(getMongoCredential().getSource(), getAuthCommand(getUserNameNonNull(), getPasswordNonNull(), ((BsonString) nonceResult.get("nonce")).getValue()), connection, new SingleResultCallback() {

                        @Override
                        public void onResult(final BsonDocument result, final Throwable t) {
                            if (t != null) {
                                callback.onResult(null, translateThrowable(t));
                            } else {
                                callback.onResult(null, null);
                            }
                        }
                    });
                }
            }
        });
    }

    private Throwable translateThrowable(final Throwable t) {
        if (t instanceof MongoCommandException) {
            return new MongoSecurityException(getMongoCredential(), "Exception authenticating", t);
        } else {
            return t;
        }
    }
}