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   1 /**
   2  * Copyright (c) 2010-2020 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.nuki.internal;
  14
  15 import org.eclipse.jdt.annotation.NonNullByDefault;
  16 import org.eclipse.jdt.annotation.Nullable;
  17 import org.eclipse.jetty.client.HttpClient;
  18 import org.openhab.binding.nuki.internal.dataexchange.NukiApiServlet;
  19 import org.openhab.binding.nuki.internal.handler.NukiBridgeHandler;
  20 import org.openhab.binding.nuki.internal.handler.NukiSmartLockHandler;
  21 import org.openhab.core.io.net.http.HttpClientFactory;
  22 import org.openhab.core.net.HttpServiceUtil;
  23 import org.openhab.core.net.NetworkAddressService;
  24 import org.openhab.core.thing.Bridge;
  25 import org.openhab.core.thing.Thing;
  26 import org.openhab.core.thing.ThingTypeUID;
  27 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  28 import org.openhab.core.thing.binding.ThingHandler;
  29 import org.openhab.core.thing.binding.ThingHandlerFactory;
  30 import org.osgi.service.component.annotations.Activate;
  31 import org.osgi.service.component.annotations.Component;
  32 import org.osgi.service.component.annotations.Reference;
  33 import org.osgi.service.http.HttpService;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 /**
  38  * The {@link NukiHandlerFactory} is responsible for creating things and thing
  39  * handlers.
  40  *
  41  * @author Markus Katter - Initial contribution
  42  */
  43 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.nuki")
  44 @NonNullByDefault
  45 public class NukiHandlerFactory extends BaseThingHandlerFactory {
  46
  47     private final Logger logger = LoggerFactory.getLogger(NukiHandlerFactory.class);
  48
  49     private final HttpService httpService;
  50     private final HttpClient httpClient;
  51     private final NetworkAddressService networkAddressService;
  52     private @Nullable String callbackUrl;
  53     private @Nullable NukiApiServlet nukiApiServlet;
  54
  55     @Activate
  56     public NukiHandlerFactory(@Reference HttpService httpService, @Reference final HttpClientFactory httpClientFactory,
  57             @Reference NetworkAddressService networkAddressService) {
  58         this.httpService = httpService;
  59         this.httpClient = httpClientFactory.getCommonHttpClient();
  60         this.networkAddressService = networkAddressService;
  61     }
  62
  63     @Override
  64     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  65         return NukiBindingConstants.SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  66     }
  67
  68     @Override
  69     protected @Nullable ThingHandler createHandler(Thing thing) {
  70         logger.debug("NukiHandlerFactory:createHandler({})", thing);
  71         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  72
  73         if (NukiBindingConstants.THING_TYPE_BRIDGE_UIDS.contains(thingTypeUID)) {
  74             callbackUrl = createCallbackUrl();
  75             NukiBridgeHandler nukiBridgeHandler = new NukiBridgeHandler((Bridge) thing, httpClient, callbackUrl);
  76             if (!nukiBridgeHandler.isInitializable()) {
  77                 return null;
  78             }
  79             if (nukiApiServlet == null) {
  80                 nukiApiServlet = new NukiApiServlet(httpService);
  81             }
  82             nukiApiServlet.add(nukiBridgeHandler);
  83             return nukiBridgeHandler;
  84         } else if (NukiBindingConstants.THING_TYPE_SMARTLOCK_UIDS.contains(thingTypeUID)) {
  85             return new NukiSmartLockHandler(thing);
  86         }
  87         logger.trace("No valid Handler found for Thing[{}]!", thingTypeUID);
  88         return null;
  89     }
  90
  91     @Override
  92     public void unregisterHandler(Thing thing) {
  93         super.unregisterHandler(thing);
  94         logger.trace("NukiHandlerFactory:unregisterHandler({})", thing);
  95         if (thing.getHandler() instanceof NukiBridgeHandler && nukiApiServlet != null) {
  96             nukiApiServlet.remove((NukiBridgeHandler) thing.getHandler());
  97             if (nukiApiServlet.countNukiBridgeHandlers() == 0) {
  98                 nukiApiServlet = null;
  99             }
 100         }
 101     }
 102
 103     private @Nullable String createCallbackUrl() {
 104         logger.trace("createCallbackUrl()");
 105         if (callbackUrl != null) {
 106             return callbackUrl;
 107         }
 108         final String ipAddress = networkAddressService.getPrimaryIpv4HostAddress();
 109         if (ipAddress == null) {
 110             logger.warn("No network interface could be found.");
 111             return null;
 112         }
 113         // we do not use SSL as it can cause certificate validation issues.
 114         final int port = HttpServiceUtil.getHttpServicePort(bundleContext);
 115         if (port == -1) {
 116             logger.warn("Cannot find port of the http service.");
 117             return null;
 118         }
 119         String callbackUrl = String.format(NukiBindingConstants.CALLBACK_URL, ipAddress + ":" + port);
 120         logger.trace("callbackUrl[{}]", callbackUrl);
 121         return callbackUrl;
 122     }
 123 }