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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.aai.cacher.util;
import org.apache.commons.net.util.Base64;
import org.apache.http.client.HttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContextBuilder;
import org.onap.aai.util.AAIConfig;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.http.*;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.util.ResourceUtils;
import org.springframework.web.client.ResponseErrorHandler;
import org.springframework.web.client.RestTemplate;
import javax.net.ssl.SSLContext;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.security.KeyStore;
import java.util.Collections;
public class RestClient {
private HttpClient restClient = null;
public RestClient() {
this.restClient = initClient();
}
public HttpClient getRestClient() {
return restClient;
}
/**
* @return initialized rest client
*
*/
private HttpClient initClient() {
HttpClient rc;
try {
String truststore_path = AAIConstants.AAI_HOME_ETC_AUTH
+ AAIConfig.get(AAIConstants.AAI_TRUSTSTORE_FILENAME);
String truststore_password = AAIConfig.get(AAIConstants.AAI_TRUSTSTORE_PASSWD);
String keystore_path = AAIConstants.AAI_HOME_ETC_AUTH + AAIConfig.get(AAIConstants.AAI_KEYSTORE_FILENAME);
String keystore_password = AAIConfig.get(AAIConstants.AAI_KEYSTORE_PASSWD);
SSLContext sslContext = SSLContextBuilder.create()
.loadKeyMaterial(loadPfx(keystore_path, keystore_password.toCharArray()),
keystore_password.toCharArray())
.loadTrustMaterial(ResourceUtils.getFile(truststore_path), truststore_password.toCharArray())
.build();
rc = HttpClients.custom().setSSLContext(sslContext).setSSLHostnameVerifier((s, sslSession) -> true).build();
} catch (Exception e) {
// TODO Handle exceptions/logging
rc = null;
}
return rc;
}
private String getAuth(String baseUrl ) {
int startIndex = baseUrl.indexOf("://") + "://".length();
int ampersandIndex = baseUrl.indexOf('@');
if ( ampersandIndex >= 0 ) {
return baseUrl.substring(startIndex, ampersandIndex);
}
return null;
}
public ResponseEntity get(String baseUrl, String module, String restUri, String sourceName) throws Exception {
ResponseEntity responseEntity = null;
try {
RestTemplate restTemplate = restTemplate(new RestTemplateBuilder());
String endpoint;
if (!module.equals("-1")) {
endpoint = module + restUri;
} else {
endpoint = restUri;
}
HttpHeaders headers = new HttpHeaders();
headers.setAccept(Collections.singletonList(MediaType.APPLICATION_JSON));
headers.setContentType(MediaType.APPLICATION_JSON);
headers.add("X-FromAppId", "AAI-CACHER");
headers.add("X-TransactionId", "JUNIT");
String auth = getAuth(baseUrl);
String urlUpdate;
if ( auth != null ) {
byte[] encodedAuth = Base64.encodeBase64(auth.getBytes(Charset.forName("US-ASCII")));
headers.add("Authorization", "Basic " + new String(encodedAuth));
urlUpdate = baseUrl.replaceAll(auth + "@", "");
} else {
urlUpdate = baseUrl;
}
HttpEntity httpEntity = new HttpEntity(headers);
responseEntity = restTemplate.exchange(baseUrl + endpoint, HttpMethod.GET, httpEntity, String.class);
} catch (Exception e) {
e.printStackTrace();
// TODO handle exceptions
}
return responseEntity;
}
@Bean
RestTemplate restTemplate(RestTemplateBuilder builder) throws Exception {
RestTemplate restTemplate = builder.requestFactory(() -> new HttpComponentsClientHttpRequestFactory(restClient))
.build();
restTemplate.setErrorHandler(new ResponseErrorHandler() {
@Override
public boolean hasError(ClientHttpResponse clientHttpResponse) throws IOException {
return clientHttpResponse.getStatusCode() != HttpStatus.OK;
}
@Override
public void handleError(ClientHttpResponse clientHttpResponse) throws IOException {
// TODO handle the error
}
});
return restTemplate;
}
private KeyStore loadPfx(String file, char[] password) throws Exception {
KeyStore keyStore = KeyStore.getInstance("PKCS12");
File key = ResourceUtils.getFile(file);
try (InputStream in = new FileInputStream(key)) {
keyStore.load(in, password);
}
return keyStore;
}
}
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