com.netflix.nfsidecar.aws.ClearCredential Maven / Gradle / Ivy

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/**
 * Copyright 2013 Netflix, 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.netflix.nfsidecar.aws;

import java.io.FileInputStream;
import java.io.IOException;
import java.util.Properties;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;

/**
 * This is a basic implementation of ICredentials. User should prefer to
 * implement their own versions for more secured access. This class requires
 * clear AWS key and access.
 * 
 * Set the following properties in "conf/awscredntial.properties"
 * 
 */
public class ClearCredential implements ICredential {
    private static final Logger logger = LoggerFactory.getLogger(ClearCredential.class);
    private static final String CRED_FILE = "/etc/awscredential.properties";
    private final Properties props;
    private final String AWS_ACCESS_ID;
    private final String AWS_KEY;

    public ClearCredential() {
        FileInputStream fis = null;
        try {
            fis = new FileInputStream(CRED_FILE);
            props = new Properties();
            props.load(fis);
            AWS_ACCESS_ID = props.getProperty("AWSACCESSID") != null ? props.getProperty("AWSACCESSID").trim() : "";
            AWS_KEY = props.getProperty("AWSKEY") != null ? props.getProperty("AWSKEY").trim() : "";
        } catch (Exception e) {
            logger.error("Exception with credential file ", e);
            throw new RuntimeException("Problem reading credential file. Cannot start.", e);
        } finally {
            try {
                fis.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }

    public String getAccessKeyId() {
        return AWS_ACCESS_ID;
    }

    public String getSecretAccessKey() {
        return AWS_KEY;
    }

    public AWSCredentials getCredentials() {
        return new BasicAWSCredentials(getAccessKeyId(), getSecretAccessKey());
    }

    @Override
    public AWSCredentialsProvider getAwsCredentialProvider() {
        return new AWSCredentialsProvider() {
            public AWSCredentials getCredentials() {
                return ClearCredential.this.getCredentials();
            }

            @Override
            public void refresh() {
                // NOP
            }
        };
    }
}