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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2019 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.openecomp.sdc.fe.impl;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import java.io.IOException;
import java.security.GeneralSecurityException;
import org.apache.http.HttpStatus;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpHead;
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.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.onap.config.api.JettySSLUtils;
import org.openecomp.sdc.common.log.wrappers.Logger;
import org.openecomp.sdc.exception.InvalidArgumentException;
import org.openecomp.sdc.fe.config.ConfigurationManager;
import org.openecomp.sdc.fe.config.PluginsConfiguration;
import org.openecomp.sdc.fe.config.PluginsConfiguration.Plugin;
public class PluginStatusBL {
private static final Logger log = Logger.getLogger(PluginStatusBL.class.getName());
private static final String MAX_CONNECTION_POOL = "maxOutgoingConnectionPoolTotal";
private static final String MAX_ROUTE_POOL = "maxOutgoingPerRoute";
private final Gson gson;
private final PluginsConfiguration pluginsConfiguration;
private CloseableHttpClient client;
private RequestConfig requestConfig;
public PluginStatusBL() {
this.pluginsConfiguration = ConfigurationManager.getConfigurationManager().getPluginsConfiguration();
this.gson = new GsonBuilder().setPrettyPrinting().create();
// check if we have secure connections in the plugin list, if not - we won't bother with it
try {
this.client = getPooledClient(this.hasSecuredPlugins());
} catch (Exception e) {
log.error("Could not initialize the Https client: {}", e.getMessage());
log.debug("Exception:", e);
}
}
public PluginStatusBL(CloseableHttpClient client) {
this.pluginsConfiguration = ConfigurationManager.getConfigurationManager().getPluginsConfiguration();
this.client = client;
this.gson = new GsonBuilder().setPrettyPrinting().create();
}
private boolean hasSecuredPlugins() {
if (this.getPluginsList() != null) {
return pluginsConfiguration.getPluginsList().stream()
.anyMatch(plugin -> plugin.getPluginDiscoveryUrl().toLowerCase().startsWith("https"));
}
return false;
}
private CloseableHttpClient getPooledClient(boolean isSecured) throws GeneralSecurityException, IOException {
final PoolingHttpClientConnectionManager poolingConnManager;
if (!isSecured) {
poolingConnManager = new PoolingHttpClientConnectionManager();
} else {
SSLConnectionSocketFactory s = new SSLConnectionSocketFactory(JettySSLUtils.getSslContext(), new NoopHostnameVerifier());
Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
.register("http", new PlainConnectionSocketFactory()).register("https", s).build();
poolingConnManager = new PoolingHttpClientConnectionManager(registry);
}
int maxTotal = System.getProperties().containsKey(MAX_CONNECTION_POOL) ? Integer.parseInt(System.getProperty(MAX_CONNECTION_POOL)) : 5;
int routeMax = System.getProperties().containsKey(MAX_ROUTE_POOL) ? Integer.parseInt(System.getProperty(MAX_ROUTE_POOL)) : 20;
poolingConnManager.setMaxTotal(maxTotal);
poolingConnManager.setDefaultMaxPerRoute(routeMax);
return HttpClients.custom().setConnectionManager(poolingConnManager).setSSLHostnameVerifier(new NoopHostnameVerifier()).build();
}
public String getPluginsList() {
if (pluginsConfiguration == null || pluginsConfiguration.getPluginsList() == null) {
log.warn("Configuration of type {} was not found", PluginsConfiguration.class);
throw new InvalidArgumentException("the plugin configuration was not read successfully.");
} else {
log.debug("The value returned from getConfig is {}", pluginsConfiguration);
return gson.toJson(pluginsConfiguration.getPluginsList());
}
}
public String getPluginAvailability(String pluginId) {
String result = null;
if (pluginsConfiguration == null || pluginsConfiguration.getPluginsList() == null) {
log.warn("Configuration of type {} was not found", PluginsConfiguration.class);
throw new InvalidArgumentException("the plugin configuration was not read successfully.");
} else {
log.debug("The value returned from getConfig is {}", pluginsConfiguration);
Integer connectionTimeout = pluginsConfiguration.getConnectionTimeout();
this.requestConfig = RequestConfig.custom().setSocketTimeout(connectionTimeout).setConnectTimeout(connectionTimeout)
.setConnectionRequestTimeout(connectionTimeout).build();
Plugin wantedPlugin = pluginsConfiguration.getPluginsList().stream().filter(plugin -> plugin.getPluginId().equals(pluginId)).findAny()
.orElse(null);
if (wantedPlugin != null) {
result = gson.toJson(checkPluginAvailability(wantedPlugin));
}
}
return result;
}
private boolean checkPluginAvailability(Plugin plugin) {
boolean result = false;
log.debug("sending head request to id:{} url:{}", plugin.getPluginId(), plugin.getPluginDiscoveryUrl());
HttpHead head = new HttpHead(plugin.getPluginDiscoveryUrl());
head.setConfig(this.requestConfig);
if (this.client == null) {
log.debug("The plugin {} will not run because https is not configured on the FE server", plugin.getPluginId());
return false;
}
try (CloseableHttpResponse response = this.client.execute(head)) {
result = response != null && response.getStatusLine().getStatusCode() == HttpStatus.SC_OK;
log.debug("The plugin {} is {} with result {}", plugin.getPluginId(), (result ? "online" : "offline"), result);
} catch (IOException e) {
log.debug("The plugin {} is offline", plugin.getPluginId());
log.debug("Exception:", e);
}
return result;
}
}
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