holmes-actions/src/main/java/org/onap/holmes/common/utils/HttpsUtils.java

   1 /**
   2  * Copyright 2017 ZTE Corporation.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   5  * in compliance with the License. You may obtain a copy of the License at
   6  *
   7  * http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software distributed under the License
  10  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  11  * or implied. See the License for the specific language governing permissions and limitations under
  12  * the License.
  13  */
  14
  15 package org.onap.holmes.common.utils;
  16
  17 import java.io.IOException;
  18 import java.security.cert.CertificateException;
  19 import java.security.cert.X509Certificate;
  20 import java.util.ArrayList;
  21 import java.util.List;
  22 import java.util.Map;
  23 import lombok.extern.slf4j.Slf4j;
  24 import org.apache.http.Consts;
  25 import org.apache.http.HttpEntity;
  26 import org.apache.http.HttpResponse;
  27 import org.apache.http.HttpStatus;
  28 import org.apache.http.NameValuePair;
  29 import org.apache.http.client.config.RequestConfig;
  30 import org.apache.http.client.entity.UrlEncodedFormEntity;
  31 import org.apache.http.client.methods.HttpDelete;
  32 import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;
  33 import org.apache.http.client.methods.HttpGet;
  34 import org.apache.http.client.methods.HttpPost;
  35 import org.apache.http.client.methods.HttpPut;
  36 import org.apache.http.client.methods.HttpRequestBase;
  37 import org.apache.http.config.Registry;
  38 import org.apache.http.config.RegistryBuilder;
  39 import org.apache.http.conn.socket.ConnectionSocketFactory;
  40 import org.apache.http.conn.socket.PlainConnectionSocketFactory;
  41 import org.apache.http.conn.ssl.NoopHostnameVerifier;
  42 import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
  43 import org.apache.http.conn.ssl.TrustStrategy;
  44 import org.apache.http.impl.client.CloseableHttpClient;
  45 import org.apache.http.impl.client.HttpClients;
  46 import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
  47 import org.apache.http.message.BasicNameValuePair;
  48 import org.apache.http.ssl.SSLContextBuilder;
  49 import org.apache.http.util.EntityUtils;
  50 import org.jvnet.hk2.annotations.Service;
  51 import org.onap.holmes.common.exception.CorrelationException;
  52
  53 @Slf4j
  54 @Service
  55 public class HttpsUtils {
  56     private static final String HTTP = "http";
  57     private static final String HTTPS = "https";
  58     private static SSLConnectionSocketFactory sslConnectionSocketFactory = null;
  59     private static PoolingHttpClientConnectionManager connectionManager = null;
  60     private static SSLContextBuilder sslContextBuilder = null;
  61     public static final int DEFUALT_TIMEOUT = 30000;
  62
  63     static{
  64         try {
  65             sslContextBuilder = new SSLContextBuilder();
  66             sslContextBuilder.loadTrustMaterial(null, new TrustStrategy() {
  67                 public boolean isTrusted(X509Certificate[] x509Certificates, String s)
  68                         throws CertificateException {
  69                     return true;
  70                 }
  71             });
  72             sslConnectionSocketFactory = new SSLConnectionSocketFactory(sslContextBuilder.build(),
  73                     new String[]{"SSLv3", "TLSv1", "TLSv1.2"}, null,
  74                     NoopHostnameVerifier.INSTANCE);
  75             Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
  76                     .register(HTTP, new PlainConnectionSocketFactory())
  77                     .register(HTTPS, sslConnectionSocketFactory)
  78                     .build();
  79             connectionManager = new PoolingHttpClientConnectionManager(registry);
  80             connectionManager.setMaxTotal(200);
  81         } catch (Exception e) {
  82             log.error("Failed to initialize the ssl builder: " + e.getMessage(), e);
  83         }
  84     }
  85
  86     public static HttpResponse post(String url, Map<String, String> header, Map<String, String> param,
  87             HttpEntity entity, CloseableHttpClient httpClient) throws CorrelationException {
  88         HttpResponse response;
  89         HttpPost httpPost = new HttpPost(url);
  90         try {
  91             addHeaders(header, httpPost);
  92             addParams(param, httpPost);
  93             if (entity != null) {
  94                 httpPost.setEntity(entity);
  95             }
  96             response = executeRequest(httpClient, httpPost);
  97         } catch (Exception e) {
  98             throw new CorrelationException("Failed to query data from server through POST method!");
  99         }
 100         return response;
 101     }
 102
 103     public static HttpResponse put(String url, Map<String, String> header, Map<String, String> param,
 104             HttpEntity entity, CloseableHttpClient httpClient) throws CorrelationException {
 105         HttpResponse response;
 106         HttpPut httpPut = new HttpPut(url);
 107         try {
 108             addHeaders(header, httpPut);
 109             addParams(param, httpPut);
 110             if (entity != null) {
 111                 httpPut.setEntity(entity);
 112             }
 113             response = executeRequest(httpClient, httpPut);
 114         } catch (Exception e) {
 115             throw new CorrelationException("Failed to query data from server through PUT method!");
 116         }
 117         return response;
 118     }
 119
 120     public static HttpResponse get(String url, Map<String, String> header, CloseableHttpClient httpClient) throws CorrelationException {
 121         HttpResponse response;
 122         HttpGet httpGet = new HttpGet(url);
 123         try {
 124             addHeaders(header, httpGet);
 125             response = executeRequest(httpClient, httpGet);
 126         } catch (Exception e) {
 127             throw new CorrelationException("Failed to query data from server through GET method!");
 128         }
 129         return response;
 130     }
 131
 132     public static HttpResponse delete(String url, Map<String, String> header, CloseableHttpClient httpClient) throws CorrelationException {
 133         HttpResponse response;
 134         HttpDelete httpDelete = new HttpDelete(url);
 135         try {
 136             addHeaders(header, httpDelete);
 137             response = executeRequest(httpClient, httpDelete);
 138         } catch (Exception e) {
 139             throw new CorrelationException("Failed to query data from server through DELETE method!");
 140         }
 141         return response;
 142     }
 143
 144     private static void addParams(Map<String, String> param, HttpEntityEnclosingRequestBase requestBase) {
 145         if (!param.isEmpty()) {
 146             List<NameValuePair> formparams = new ArrayList<>();
 147             for (Map.Entry<String, String> entry : param.entrySet()) {
 148                 formparams.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
 149             }
 150             UrlEncodedFormEntity urlEncodedFormEntity = new UrlEncodedFormEntity(formparams,
 151                     Consts.UTF_8);
 152             requestBase.setEntity(urlEncodedFormEntity);
 153         }
 154     }
 155
 156     private static HttpRequestBase addHeaders(Map<String, String> header, HttpRequestBase httpRequestBase) {
 157         if (!header.isEmpty()) {
 158             for (Map.Entry<String, String> entry : header.entrySet()) {
 159                 httpRequestBase.addHeader(entry.getKey(), entry.getValue());
 160             }
 161         }
 162         return httpRequestBase;
 163     }
 164
 165     public static String extractResponseEntity(HttpResponse httpResponse)
 166             throws CorrelationException, IOException {
 167         String result = "";
 168         if (httpResponse != null) {
 169             int statusCode = httpResponse.getStatusLine().getStatusCode();
 170             if (statusCode == HttpStatus.SC_OK) {
 171                 HttpEntity resEntity = httpResponse.getEntity();
 172                 result = EntityUtils.toString(resEntity);
 173             } else {
 174                 throw new CorrelationException("Get an error status from server : " + statusCode);
 175             }
 176         }
 177         return result;
 178     }
 179
 180     private static HttpResponse executeRequest(CloseableHttpClient httpClient, HttpRequestBase httpRequest)
 181             throws CorrelationException, IOException {
 182         HttpResponse httpResponse;
 183         try {
 184             httpResponse = httpClient.execute(httpRequest);
 185         } catch (Exception e) {
 186             e.printStackTrace();
 187             throw new CorrelationException("Failed to get data from server" ,e);
 188         } finally {
 189             if (httpRequest != null) {
 190                 httpRequest.releaseConnection();
 191             }
 192             if (httpClient != null) {
 193                 httpClient.close();
 194             }
 195         }
 196         return httpResponse;
 197     }
 198
 199     public static CloseableHttpClient getHttpClient(int timeout) {
 200         RequestConfig defaultRequestConfig = RequestConfig.custom()
 201                 .setSocketTimeout(timeout)
 202                 .setConnectTimeout(timeout)
 203                 .setConnectionRequestTimeout(timeout)
 204                 .build();
 205         CloseableHttpClient httpClient = HttpClients.custom()
 206                 .setDefaultRequestConfig(defaultRequestConfig)
 207                 .setSSLSocketFactory(sslConnectionSocketFactory)
 208                 .setConnectionManager(connectionManager)
 209                 .setConnectionManagerShared(true)
 210                 .build();
 211         return httpClient;
 212     }
 213 }