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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 java.util.ArrayList;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.eclipse.jdt.annotation.Nullable;
  19 import org.eclipse.jetty.client.HttpClient;
  20 import org.openhab.binding.nuki.internal.dataexchange.NukiApiServlet;
  21 import org.openhab.binding.nuki.internal.handler.NukiBridgeHandler;
  22 import org.openhab.binding.nuki.internal.handler.NukiSmartLockHandler;
  23 import org.openhab.core.io.net.http.HttpClientFactory;
  24 import org.openhab.core.net.HttpServiceUtil;
  25 import org.openhab.core.net.NetworkAddressService;
  26 import org.openhab.core.thing.Bridge;
  27 import org.openhab.core.thing.Thing;
  28 import org.openhab.core.thing.ThingTypeUID;
  29 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  30 import org.openhab.core.thing.binding.ThingHandler;
  31 import org.openhab.core.thing.binding.ThingHandlerFactory;
  32 import org.osgi.service.component.annotations.Activate;
  33 import org.osgi.service.component.annotations.Component;
  34 import org.osgi.service.component.annotations.Reference;
  35 import org.osgi.service.http.HttpService;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 /**
  40  * The {@link NukiHandlerFactory} is responsible for creating things and thing
  41  * handlers.
  42  *
  43  * @author Markus Katter - Initial contribution
  44  */
  45 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.nuki")
  46 @NonNullByDefault
  47 public class NukiHandlerFactory extends BaseThingHandlerFactory {
  48
  49     private final Logger logger = LoggerFactory.getLogger(NukiHandlerFactory.class);
  50
  51     private final HttpService httpService;
  52     private final HttpClient httpClient;
  53     private final NetworkAddressService networkAddressService;
  54     private @Nullable String callbackUrl;
  55     private @Nullable NukiApiServlet nukiApiServlet;
  56
  57     @Activate
  58     public NukiHandlerFactory(@Reference HttpService httpService, @Reference final HttpClientFactory httpClientFactory,
  59             @Reference NetworkAddressService networkAddressService) {
  60         this.httpService = httpService;
  61         this.httpClient = httpClientFactory.getCommonHttpClient();
  62         this.networkAddressService = networkAddressService;
  63     }
  64
  65     @Override
  66     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  67         return NukiBindingConstants.SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  68     }
  69
  70     @Override
  71     protected @Nullable ThingHandler createHandler(Thing thing) {
  72         logger.debug("NukiHandlerFactory:createHandler({})", thing);
  73         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  74
  75         if (NukiBindingConstants.THING_TYPE_BRIDGE_UIDS.contains(thingTypeUID)) {
  76             callbackUrl = createCallbackUrl();
  77             NukiBridgeHandler nukiBridgeHandler = new NukiBridgeHandler((Bridge) thing, httpClient, callbackUrl);
  78             if (!nukiBridgeHandler.isInitializable()) {
  79                 return null;
  80             }
  81             if (nukiApiServlet == null) {
  82                 nukiApiServlet = new NukiApiServlet(httpService);
  83             }
  84             nukiApiServlet.add(nukiBridgeHandler);
  85             return nukiBridgeHandler;
  86         } else if (NukiBindingConstants.THING_TYPE_SMARTLOCK_UIDS.contains(thingTypeUID)) {
  87             return new NukiSmartLockHandler(thing);
  88         }
  89         logger.trace("No valid Handler found for Thing[{}]!", thingTypeUID);
  90         return null;
  91     }
  92
  93     @Override
  94     public void unregisterHandler(Thing thing) {
  95         super.unregisterHandler(thing);
  96         logger.trace("NukiHandlerFactory:unregisterHandler({})", thing);
  97         if (thing.getHandler() instanceof NukiBridgeHandler && nukiApiServlet != null) {
  98             nukiApiServlet.remove((NukiBridgeHandler) thing.getHandler());
  99             if (nukiApiServlet.countNukiBridgeHandlers() == 0) {
 100                 nukiApiServlet = null;
 101             }
 102         }
 103     }
 104
 105     private @Nullable String createCallbackUrl() {
 106         logger.trace("createCallbackUrl()");
 107         if (callbackUrl != null) {
 108             return callbackUrl;
 109         }
 110         final String ipAddress = networkAddressService.getPrimaryIpv4HostAddress();
 111         if (ipAddress == null) {
 112             logger.warn("No network interface could be found.");
 113             return null;
 114         }
 115         // we do not use SSL as it can cause certificate validation issues.
 116         final int port = HttpServiceUtil.getHttpServicePort(bundleContext);
 117         if (port == -1) {
 118             logger.warn("Cannot find port of the http service.");
 119             return null;
 120         }
 121         ArrayList<String> parameters = new ArrayList<>();
 122         parameters.add(ipAddress + ":" + port);
 123         String callbackUrl = String.format(NukiBindingConstants.CALLBACK_URL, parameters.toArray());
 124         logger.trace("callbackUrl[{}]", callbackUrl);
 125         return callbackUrl;
 126     }
 127 }