git.basschouten.com Git - openhab-addons.git/blob

   1 /**
   2  * Copyright (c) 2010-2021 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   7  * This program and the accompanying materials are made available under the
   8  * terms of the Eclipse Public License 2.0 which is available at
   9  * http://www.eclipse.org/legal/epl-2.0
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.remoteopenhab.internal;
  14
  15 import java.net.Socket;
  16 import java.security.KeyManagementException;
  17 import java.security.NoSuchAlgorithmException;
  18 import java.security.cert.CertificateException;
  19 import java.security.cert.X509Certificate;
  20 import java.util.Set;
  21 import java.util.stream.Collectors;
  22 import java.util.stream.Stream;
  23
  24 import javax.net.ssl.SSLContext;
  25 import javax.net.ssl.SSLEngine;
  26 import javax.net.ssl.TrustManager;
  27 import javax.net.ssl.X509ExtendedTrustManager;
  28 import javax.ws.rs.client.ClientBuilder;
  29
  30 import org.eclipse.jdt.annotation.NonNullByDefault;
  31 import org.eclipse.jdt.annotation.Nullable;
  32 import org.eclipse.jetty.client.HttpClient;
  33 import org.openhab.binding.remoteopenhab.internal.handler.RemoteopenhabBridgeHandler;
  34 import org.openhab.binding.remoteopenhab.internal.handler.RemoteopenhabThingHandler;
  35 import org.openhab.core.config.core.Configuration;
  36 import org.openhab.core.io.net.http.HttpClientFactory;
  37 import org.openhab.core.thing.Bridge;
  38 import org.openhab.core.thing.Thing;
  39 import org.openhab.core.thing.ThingTypeUID;
  40 import org.openhab.core.thing.ThingUID;
  41 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  42 import org.openhab.core.thing.binding.ThingHandler;
  43 import org.openhab.core.thing.binding.ThingHandlerFactory;
  44 import org.osgi.service.component.ComponentContext;
  45 import org.osgi.service.component.annotations.Activate;
  46 import org.osgi.service.component.annotations.Component;
  47 import org.osgi.service.component.annotations.Reference;
  48 import org.osgi.service.jaxrs.client.SseEventSourceFactory;
  49 import org.slf4j.Logger;
  50 import org.slf4j.LoggerFactory;
  51
  52 import com.google.gson.FieldNamingPolicy;
  53 import com.google.gson.Gson;
  54 import com.google.gson.GsonBuilder;
  55
  56 /**
  57  * The {@link RemoteopenhabHandlerFactory} is responsible for creating things and thing
  58  * handlers.
  59  *
  60  * @author Laurent Garnier - Initial contribution
  61  */
  62 @NonNullByDefault
  63 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.remoteopenhab")
  64 public class RemoteopenhabHandlerFactory extends BaseThingHandlerFactory {
  65
  66     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Stream
  67             .concat(RemoteopenhabBindingConstants.SUPPORTED_BRIDGE_TYPES_UIDS.stream(),
  68                     RemoteopenhabBindingConstants.SUPPORTED_THING_TYPES_UIDS.stream())
  69             .collect(Collectors.toSet());
  70
  71     private final Logger logger = LoggerFactory.getLogger(RemoteopenhabHandlerFactory.class);
  72
  73     private final HttpClient httpClient;
  74     private final ClientBuilder clientBuilder;
  75     private final SseEventSourceFactory eventSourceFactory;
  76     private final RemoteopenhabChannelTypeProvider channelTypeProvider;
  77     private final RemoteopenhabStateDescriptionOptionProvider stateDescriptionProvider;
  78     private final RemoteopenhabCommandDescriptionOptionProvider commandDescriptionProvider;
  79     private final Gson jsonParser;
  80
  81     private HttpClient httpClientTrustingCert;
  82
  83     @Activate
  84     public RemoteopenhabHandlerFactory(final @Reference HttpClientFactory httpClientFactory,
  85             final @Reference ClientBuilder clientBuilder, final @Reference SseEventSourceFactory eventSourceFactory,
  86             final @Reference RemoteopenhabChannelTypeProvider channelTypeProvider,
  87             final @Reference RemoteopenhabStateDescriptionOptionProvider stateDescriptionProvider,
  88             final @Reference RemoteopenhabCommandDescriptionOptionProvider commandDescriptionProvider) {
  89         this.httpClient = httpClientFactory.getCommonHttpClient();
  90         this.httpClientTrustingCert = httpClientFactory.createHttpClient(RemoteopenhabBindingConstants.BINDING_ID);
  91         this.clientBuilder = clientBuilder;
  92         this.eventSourceFactory = eventSourceFactory;
  93         this.channelTypeProvider = channelTypeProvider;
  94         this.stateDescriptionProvider = stateDescriptionProvider;
  95         this.commandDescriptionProvider = commandDescriptionProvider;
  96         this.jsonParser = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.IDENTITY).create();
  97
  98         try {
  99             SSLContext sslContext = SSLContext.getInstance("SSL");
 100
 101             TrustManager[] trustAllCerts = new TrustManager[] { new X509ExtendedTrustManager() {
 102                 @Override
 103                 public void checkClientTrusted(X509Certificate @Nullable [] chain, @Nullable String authType)
 104                         throws CertificateException {
 105                 }
 106
 107                 @Override
 108                 public void checkServerTrusted(X509Certificate @Nullable [] chain, @Nullable String authType)
 109                         throws CertificateException {
 110                 }
 111
 112                 @Override
 113                 public X509Certificate @Nullable [] getAcceptedIssuers() {
 114                     return null;
 115                 }
 116
 117                 @Override
 118                 public void checkClientTrusted(X509Certificate @Nullable [] chain, @Nullable String authType,
 119                         @Nullable Socket socket) throws CertificateException {
 120                 }
 121
 122                 @Override
 123                 public void checkServerTrusted(X509Certificate @Nullable [] chain, @Nullable String authType,
 124                         @Nullable Socket socket) throws CertificateException {
 125                 }
 126
 127                 @Override
 128                 public void checkClientTrusted(X509Certificate @Nullable [] chain, @Nullable String authType,
 129                         @Nullable SSLEngine engine) throws CertificateException {
 130                 }
 131
 132                 @Override
 133                 public void checkServerTrusted(X509Certificate @Nullable [] chain, @Nullable String authType,
 134                         @Nullable SSLEngine engine) throws CertificateException {
 135                 }
 136             } };
 137             sslContext.init(null, trustAllCerts, null);
 138
 139             this.httpClientTrustingCert.getSslContextFactory().setSslContext(sslContext);
 140         } catch (NoSuchAlgorithmException e) {
 141             logger.warn("An exception occurred while requesting the SSL encryption algorithm : '{}'", e.getMessage(),
 142                     e);
 143         } catch (KeyManagementException e) {
 144             logger.warn("An exception occurred while initialising the SSL context : '{}'", e.getMessage(), e);
 145         }
 146     }
 147
 148     @Override
 149     protected void activate(ComponentContext componentContext) {
 150         super.activate(componentContext);
 151         try {
 152             httpClientTrustingCert.start();
 153         } catch (Exception e) {
 154             logger.warn("Unable to start Jetty HttpClient", e);
 155         }
 156     }
 157
 158     @Override
 159     protected void deactivate(ComponentContext componentContext) {
 160         try {
 161             httpClientTrustingCert.stop();
 162         } catch (Exception e) {
 163             logger.warn("Unable to stop Jetty HttpClient", e);
 164         }
 165         super.deactivate(componentContext);
 166     }
 167
 168     /**
 169      * The things this factory supports creating.
 170      */
 171     @Override
 172     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
 173         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
 174     }
 175
 176     @Override
 177     public @Nullable Thing createThing(ThingTypeUID thingTypeUID, Configuration configuration,
 178             @Nullable ThingUID thingUID, @Nullable ThingUID bridgeUID) {
 179         if (thingTypeUID.equals(RemoteopenhabBindingConstants.BRIDGE_TYPE_SERVER)) {
 180             return super.createThing(thingTypeUID, configuration, thingUID, null);
 181         } else if (RemoteopenhabBindingConstants.SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID)) {
 182             ThingUID newThingUID;
 183             if (bridgeUID != null && thingUID != null) {
 184                 newThingUID = new ThingUID(thingTypeUID, bridgeUID, thingUID.getId());
 185             } else {
 186                 newThingUID = thingUID;
 187             }
 188             return super.createThing(thingTypeUID, configuration, newThingUID, bridgeUID);
 189         }
 190         throw new IllegalArgumentException(
 191                 "The thing type " + thingTypeUID + " is not supported by the remote openHAB binding.");
 192     }
 193
 194     /**
 195      * Creates a handler for the specific thing.
 196      */
 197     @Override
 198     protected @Nullable ThingHandler createHandler(Thing thing) {
 199         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
 200         if (thingTypeUID.equals(RemoteopenhabBindingConstants.BRIDGE_TYPE_SERVER)) {
 201             return new RemoteopenhabBridgeHandler((Bridge) thing, httpClient, httpClientTrustingCert, clientBuilder,
 202                     eventSourceFactory, channelTypeProvider, stateDescriptionProvider, commandDescriptionProvider,
 203                     jsonParser);
 204         } else if (RemoteopenhabBindingConstants.SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID)) {
 205             return new RemoteopenhabThingHandler(thing);
 206         }
 207         return null;
 208     }
 209 }