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/**
* Copyright 2017 ZTE Corporation.
*
* 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.onap.holmes.common.utils;
import java.io.IOException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.ssl.SSLContextBuilder;
import org.apache.http.util.EntityUtils;
import org.jvnet.hk2.annotations.Service;
import org.onap.holmes.common.exception.CorrelationException;
@Slf4j
@Service
public class HttpsUtils {
private static final String HTTP = "http";
private static final String HTTPS = "https";
private static final int DEFUALT_TIMEOUT = 30000;
private static SSLConnectionSocketFactory sslConnectionSocketFactory = null;
private static PoolingHttpClientConnectionManager connectionManager = null;
private static SSLContextBuilder sslContextBuilder = null;
static{
try {
sslContextBuilder = new SSLContextBuilder();
sslContextBuilder.loadTrustMaterial(null, new TrustStrategy() {
public boolean isTrusted(X509Certificate[] x509Certificates, String s)
throws CertificateException {
return true;
}
});
sslConnectionSocketFactory = new SSLConnectionSocketFactory(sslContextBuilder.build(),
new String[]{"SSLv2Hello", "SSLv3", "TLSv1", "TLSv1.2"}, null,
NoopHostnameVerifier.INSTANCE);
Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
.register(HTTP, new PlainConnectionSocketFactory())
.register(HTTPS, sslConnectionSocketFactory)
.build();
connectionManager = new PoolingHttpClientConnectionManager(registry);
connectionManager.setMaxTotal(200);
} catch (Exception e) {
log.error("Failed to initialize the ssl builder: " + e.getMessage(), e);
}
}
public static HttpResponse post(String url, Map<String, String> header, Map<String, String> param,
HttpEntity entity) throws CorrelationException {
return post(url, header, param, entity, DEFUALT_TIMEOUT);
}
public static HttpResponse post(String url, Map<String, String> header, Map<String, String> param,
HttpEntity entity, int timeout) throws CorrelationException {
HttpResponse response;
HttpPost httpPost = new HttpPost(url);
try {
CloseableHttpClient httpClient = getHttpClient(timeout);
addHeaders(header, httpPost);
addParams(param, httpPost);
if (entity != null) {
httpPost.setEntity(entity);
}
response = executeRequest(httpClient, httpPost);
} catch (Exception e) {
throw new CorrelationException("Failed to query data from server through POST method!");
}
return response;
}
public static HttpResponse put(String url, Map<String, String> header, Map<String, String> param,
HttpEntity entity) throws CorrelationException {
return put(url, header, param, entity, DEFUALT_TIMEOUT);
}
public static HttpResponse put(String url, Map<String, String> header, Map<String, String> param,
HttpEntity entity, int timeout) throws CorrelationException {
HttpResponse response;
HttpPut httpPut = new HttpPut(url);
try {
CloseableHttpClient httpClient = getHttpClient(timeout);
addHeaders(header, httpPut);
addParams(param, httpPut);
if (entity != null) {
httpPut.setEntity(entity);
}
response = executeRequest(httpClient, httpPut);
} catch (Exception e) {
throw new CorrelationException("Failed to query data from server through PUT method!");
}
return response;
}
public static HttpResponse get(String url, Map<String, String> header) throws CorrelationException {
return get(url, header, DEFUALT_TIMEOUT);
}
public static HttpResponse get(String url, Map<String, String> header, int timeout) throws CorrelationException {
HttpResponse response;
HttpGet httpGet = new HttpGet(url);
try {
CloseableHttpClient httpClient = getHttpClient(timeout);
addHeaders(header, httpGet);
response = executeRequest(httpClient, httpGet);
} catch (Exception e) {
throw new CorrelationException("Failed to query data from server through GET method!");
}
return response;
}
public static HttpResponse delete(String url, Map<String, String> header) throws CorrelationException {
return delete(url, header, DEFUALT_TIMEOUT);
}
public static HttpResponse delete(String url, Map<String, String> header, int timeout) throws CorrelationException {
HttpResponse response;
HttpDelete httpDelete = new HttpDelete(url);
try {
CloseableHttpClient httpClient = getHttpClient(timeout);
addHeaders(header, httpDelete);
response = executeRequest(httpClient, httpDelete);
} catch (Exception e) {
throw new CorrelationException("Failed to query data from server through DELETE method!");
}
return response;
}
private static void addParams(Map<String, String> param, HttpEntityEnclosingRequestBase requestBase) {
if (!param.isEmpty()) {
List<NameValuePair> formparams = new ArrayList<>();
for (Map.Entry<String, String> entry : param.entrySet()) {
formparams.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
}
UrlEncodedFormEntity urlEncodedFormEntity = new UrlEncodedFormEntity(formparams,
Consts.UTF_8);
requestBase.setEntity(urlEncodedFormEntity);
}
}
private static HttpRequestBase addHeaders(Map<String, String> header, HttpRequestBase httpRequestBase) {
if (!header.isEmpty()) {
for (Map.Entry<String, String> entry : header.entrySet()) {
httpRequestBase.addHeader(entry.getKey(), entry.getValue());
}
}
return httpRequestBase;
}
public static String extractResponseEntity(HttpResponse httpResponse)
throws CorrelationException, IOException {
String result = "";
if (httpResponse != null) {
int statusCode = httpResponse.getStatusLine().getStatusCode();
if (statusCode == HttpStatus.SC_OK) {
HttpEntity resEntity = httpResponse.getEntity();
result = EntityUtils.toString(resEntity);
} else {
throw new CorrelationException("Get a error status from server : " + statusCode);
}
}
return result;
}
private static HttpResponse executeRequest(CloseableHttpClient httpClient, HttpRequestBase httpRequest)
throws Exception {
HttpResponse httpResponse;
try {
httpResponse = httpClient.execute(httpRequest);
} catch (Exception e) {
throw new CorrelationException("Failed to get data from server");
} finally {
if (httpRequest != null) {
httpRequest.releaseConnection();
}
if (httpClient != null) {
httpClient.close();
}
}
return httpResponse;
}
private static CloseableHttpClient getHttpClient(int timeout) throws Exception {
RequestConfig defaultRequestConfig = RequestConfig.custom()
.setSocketTimeout(timeout)
.setConnectTimeout(timeout)
.setConnectionRequestTimeout(timeout)
.build();
CloseableHttpClient httpClient = HttpClients.custom()
.setDefaultRequestConfig(defaultRequestConfig)
.setSSLSocketFactory(sslConnectionSocketFactory)
.setConnectionManager(connectionManager)
.setConnectionManagerShared(true)
.build();
return httpClient;
}
}
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