catalog-fe/src/main/java/org/openecomp/sdc/fe/impl/PluginStatusBL.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * SDC
   4  * ================================================================================
   5  * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.openecomp.sdc.fe.impl;
  22
  23 import com.google.gson.Gson;
  24 import com.google.gson.GsonBuilder;
  25 import org.apache.http.HttpStatus;
  26 import org.apache.http.client.config.RequestConfig;
  27 import org.apache.http.client.methods.CloseableHttpResponse;
  28 import org.apache.http.client.methods.HttpHead;
  29 import org.apache.http.config.Registry;
  30 import org.apache.http.config.RegistryBuilder;
  31 import org.apache.http.conn.socket.ConnectionSocketFactory;
  32 import org.apache.http.conn.socket.PlainConnectionSocketFactory;
  33 import org.apache.http.conn.ssl.NoopHostnameVerifier;
  34 import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
  35 import org.apache.http.impl.client.CloseableHttpClient;
  36 import org.apache.http.impl.client.HttpClients;
  37 import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
  38
  39 import org.openecomp.sdc.common.log.wrappers.Logger;
  40 import org.openecomp.sdc.exception.InvalidArgumentException;
  41 import org.openecomp.sdc.fe.config.ConfigurationManager;
  42 import org.openecomp.sdc.fe.config.PluginsConfiguration;
  43 import org.openecomp.sdc.fe.config.PluginsConfiguration.Plugin;
  44 import org.openecomp.sdc.fe.utils.JettySSLUtils;
  45
  46 import java.io.IOException;
  47 import java.security.GeneralSecurityException;
  48
  49 public class PluginStatusBL {
  50
  51     private static final Logger log = Logger.getLogger(PluginStatusBL.class.getName());
  52         private static final String MAX_CONNECTION_POOL = "maxOutgoingConnectionPoolTotal";
  53         private static final String MAX_ROUTE_POOL = "maxOutgoingPerRoute";
  54     private final Gson gson;
  55     private CloseableHttpClient client;
  56     private final PluginsConfiguration pluginsConfiguration;
  57     private RequestConfig requestConfig;
  58
  59     public PluginStatusBL() {
  60         this.pluginsConfiguration = ConfigurationManager.getConfigurationManager().getPluginsConfiguration();
  61         this.gson = new GsonBuilder().setPrettyPrinting().create();
  62                 // check if we have secure connections in the plugin list, if not - we won't bother with it
  63                 try {
  64                         this.client = getPooledClient(this.hasSecuredPlugins());
  65                 } catch (Exception e){
  66                         log.error("Could not initialize the Https client: {}", e.getMessage());
  67                         log.debug("Exception:",e);
  68                 }
  69     }
  70
  71     public PluginStatusBL(CloseableHttpClient client) {
  72         this.pluginsConfiguration = ConfigurationManager.getConfigurationManager().getPluginsConfiguration();
  73         this.client = client;
  74
  75         this.gson = new GsonBuilder().setPrettyPrinting().create();
  76
  77     }
  78
  79         private boolean hasSecuredPlugins() {
  80                 if (this.getPluginsList() != null) {
  81             return pluginsConfiguration.getPluginsList().stream()
  82                     .anyMatch(plugin -> plugin.getPluginDiscoveryUrl().toLowerCase().startsWith("https"));
  83                 }
  84                 return false;
  85
  86         }
  87
  88         private CloseableHttpClient getPooledClient(boolean isSecured) throws GeneralSecurityException, IOException {
  89                 final PoolingHttpClientConnectionManager  poolingConnManager;
  90                 if (!isSecured) {
  91                         poolingConnManager
  92                                         = new PoolingHttpClientConnectionManager();
  93                 } else {
  94                         SSLConnectionSocketFactory s = new SSLConnectionSocketFactory(
  95                     JettySSLUtils.getSslContext(),
  96                                         new NoopHostnameVerifier());
  97
  98                         Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
  99                                         .register("http", new PlainConnectionSocketFactory())
 100                                         .register("https", s)
 101                                         .build();
 102                         poolingConnManager
 103                                         = new PoolingHttpClientConnectionManager(registry);
 104                 }
 105                 int maxTotal = System.getProperties().containsKey(MAX_CONNECTION_POOL) ? Integer.parseInt(System.getProperty(MAX_CONNECTION_POOL)) : 5;
 106                 int routeMax = System.getProperties().containsKey(MAX_ROUTE_POOL) ? Integer.parseInt(System.getProperty(MAX_ROUTE_POOL)) : 20;
 107                 poolingConnManager.setMaxTotal(maxTotal);
 108                 poolingConnManager.setDefaultMaxPerRoute(routeMax);
 109                 return HttpClients.custom().setConnectionManager(poolingConnManager).setSSLHostnameVerifier(new NoopHostnameVerifier()).build();
 110         }
 111
 112     public String getPluginsList() {
 113         String result = null;
 114
 115         if (pluginsConfiguration == null || pluginsConfiguration.getPluginsList() == null) {
 116             log.warn("Configuration of type {} was not found", PluginsConfiguration.class);
 117             throw new InvalidArgumentException("the plugin configuration was not read successfully.");
 118
 119         } else {
 120             log.debug("The value returned from getConfig is {}", pluginsConfiguration);
 121
 122             result = gson.toJson(pluginsConfiguration.getPluginsList());
 123         }
 124         return result;
 125     }
 126
 127     public String getPluginAvailability(String pluginId) {
 128         String result = null;
 129
 130         if (pluginsConfiguration == null || pluginsConfiguration.getPluginsList() == null) {
 131             log.warn("Configuration of type {} was not found", PluginsConfiguration.class);
 132             throw new InvalidArgumentException("the plugin configuration was not read successfully.");
 133
 134         } else {
 135             log.debug("The value returned from getConfig is {}", pluginsConfiguration);
 136             Integer connectionTimeout = pluginsConfiguration.getConnectionTimeout();
 137             this.requestConfig = RequestConfig.custom()
 138                     .setSocketTimeout(connectionTimeout)
 139                     .setConnectTimeout(connectionTimeout)
 140                     .setConnectionRequestTimeout(connectionTimeout).build();
 141
 142
 143             Plugin wantedPlugin = pluginsConfiguration.getPluginsList().stream()
 144                     .filter(plugin -> plugin.getPluginId().equals(pluginId))
 145                     .findAny()
 146                     .orElse(null);
 147
 148             if (wantedPlugin != null) {
 149                 result = gson.toJson(checkPluginAvailability(wantedPlugin));
 150             }
 151         }
 152         return result;
 153     }
 154
 155     private boolean checkPluginAvailability(Plugin plugin) {
 156         boolean result = false;
 157         log.debug("sending head request to id:{} url:{}", plugin.getPluginId(), plugin.getPluginDiscoveryUrl());
 158         HttpHead head = new HttpHead(plugin.getPluginDiscoveryUrl());
 159
 160         head.setConfig(this.requestConfig);
 161                 if (this.client == null) {
 162                         log.debug("The plugin {} will not run because https is not configured on the FE server",plugin.getPluginId());
 163                         return false;
 164                 }
 165         try (CloseableHttpResponse response = this.client.execute(head)) {
 166             result = response != null && response.getStatusLine().getStatusCode() == HttpStatus.SC_OK;
 167             log.debug("The plugin {} is {} with result {}", plugin.getPluginId(), (result ? "online" : "offline"), result);
 168         } catch (IOException e) {
 169             log.debug("The plugin {} is offline", plugin.getPluginId());
 170             log.debug("Exception:", e);
 171         }
 172
 173         return result;
 174     }
 175
 176 }