/*
* Copyright 2014 the original author or 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.
*/
package org.springframework.social.oauth1;
import java.io.IOException;
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.social.support.HttpRequestDecorator;
/**
* ClientHttpRequestInterceptor implementation that performs OAuth1 request signing before a request for a protected resource is executed.
* @author Keith Donald
* @author Craig Walls
*/
class OAuth1RequestInterceptor implements ClientHttpRequestInterceptor {
private final SigningSupport signingUtils;
private final OAuth1Credentials oauth1Credentials;
/**
* Creates an OAuth 1.0 protected resource request interceptor.
* @param accessToken the access token and secret
*/
public OAuth1RequestInterceptor(OAuth1Credentials oauth1Credentials) {
this.oauth1Credentials = oauth1Credentials;
this.signingUtils = new SigningSupport();
}
public ClientHttpResponse intercept(final HttpRequest request, final byte[] body, ClientHttpRequestExecution execution) throws IOException {
HttpRequest protectedResourceRequest = new HttpRequestDecorator(request);
protectedResourceRequest.getHeaders().add("Authorization", getAuthorizationHeaderValue(request, body));
return execution.execute(protectedResourceRequest, body);
}
// internal helpers
private String getAuthorizationHeaderValue(HttpRequest request, byte[] body) {
return signingUtils.buildAuthorizationHeaderValue(request, body, oauth1Credentials);
}
}