com.appglu.impl.BasicAuthHttpRequestInterceptor.java Source code

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Here is the source code for com.appglu.impl.BasicAuthHttpRequestInterceptor.java

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/*******************************************************************************
 * Copyright 2013 AppGlu, 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.appglu.impl;

import java.io.IOException;

import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.http.client.support.HttpRequestWrapper;

import com.appglu.impl.util.Base64Utils;

public class BasicAuthHttpRequestInterceptor implements ClientHttpRequestInterceptor {

    private String applicationKey;

    private String applicationSecret;

    public BasicAuthHttpRequestInterceptor(String applicationKey, String applicationSecret) {
        this.applicationKey = applicationKey;
        this.applicationSecret = applicationSecret;
    }

    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution)
            throws IOException {
        HttpRequestWrapper wrapper = new HttpRequestWrapper(request) {

            @Override
            public HttpHeaders getHeaders() {
                HttpHeaders headers = super.getHeaders();
                this.addBasicAuthHeader(headers);
                return headers;
            }

            private void addBasicAuthHeader(HttpHeaders headers) {
                String credentials = applicationKey + ":" + applicationSecret;
                String basicHeaderValue = "Basic " + Base64Utils.encodeBytes(credentials.getBytes());
                headers.set("Authorization", basicHeaderValue);
            }

        };

        return execution.execute(wrapper, body);
    }

}