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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.shelly.internal.discovery;
  14
  15 import static org.openhab.binding.shelly.internal.ShellyBindingConstants.*;
  16 import static org.openhab.binding.shelly.internal.util.ShellyUtils.*;
  17 import static org.openhab.core.thing.Thing.PROPERTY_MODEL_ID;
  18
  19 import java.io.IOException;
  20 import java.util.Map;
  21 import java.util.Set;
  22 import java.util.TreeMap;
  23
  24 import javax.jmdns.ServiceInfo;
  25
  26 import org.eclipse.jdt.annotation.NonNullByDefault;
  27 import org.eclipse.jdt.annotation.Nullable;
  28 import org.eclipse.jetty.client.HttpClient;
  29 import org.openhab.binding.shelly.internal.api.ShellyApiException;
  30 import org.openhab.binding.shelly.internal.api.ShellyApiResult;
  31 import org.openhab.binding.shelly.internal.api.ShellyDeviceProfile;
  32 import org.openhab.binding.shelly.internal.api.ShellyHttpApi;
  33 import org.openhab.binding.shelly.internal.config.ShellyBindingConfiguration;
  34 import org.openhab.binding.shelly.internal.config.ShellyThingConfiguration;
  35 import org.openhab.binding.shelly.internal.handler.ShellyBaseHandler;
  36 import org.openhab.binding.shelly.internal.util.ShellyTranslationProvider;
  37 import org.openhab.core.config.discovery.DiscoveryResult;
  38 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  39 import org.openhab.core.config.discovery.mdns.MDNSDiscoveryParticipant;
  40 import org.openhab.core.i18n.LocaleProvider;
  41 import org.openhab.core.i18n.TranslationProvider;
  42 import org.openhab.core.io.net.http.HttpClientFactory;
  43 import org.openhab.core.thing.ThingTypeUID;
  44 import org.openhab.core.thing.ThingUID;
  45 import org.osgi.service.cm.Configuration;
  46 import org.osgi.service.cm.ConfigurationAdmin;
  47 import org.osgi.service.component.ComponentContext;
  48 import org.osgi.service.component.annotations.Activate;
  49 import org.osgi.service.component.annotations.Component;
  50 import org.osgi.service.component.annotations.Modified;
  51 import org.osgi.service.component.annotations.Reference;
  52 import org.slf4j.Logger;
  53 import org.slf4j.LoggerFactory;
  54
  55 /**
  56  * This class identifies Shelly devices by their mDNS service information.
  57  *
  58  * @author Markus Michels - Initial contribution
  59  */
  60 @NonNullByDefault
  61 @Component(service = MDNSDiscoveryParticipant.class, immediate = true)
  62 public class ShellyDiscoveryParticipant implements MDNSDiscoveryParticipant {
  63     private final Logger logger = LoggerFactory.getLogger(ShellyDiscoveryParticipant.class);
  64     private final ShellyBindingConfiguration bindingConfig = new ShellyBindingConfiguration();
  65     private final ShellyTranslationProvider messages;
  66     private final HttpClient httpClient;
  67     private final ConfigurationAdmin configurationAdmin;
  68
  69     /**
  70      * OSGI Service Activation
  71      *
  72      * @param componentContext
  73      * @param localeProvider
  74      */
  75     @Activate
  76     public ShellyDiscoveryParticipant(@Reference ConfigurationAdmin configurationAdmin,
  77             @Reference HttpClientFactory httpClientFactory, @Reference LocaleProvider localeProvider,
  78             @Reference TranslationProvider i18nProvider, ComponentContext componentContext) {
  79         logger.debug("Activating ShellyDiscovery service");
  80         this.configurationAdmin = configurationAdmin;
  81         this.messages = new ShellyTranslationProvider(componentContext.getBundleContext().getBundle(), i18nProvider,
  82                 localeProvider);
  83         this.httpClient = httpClientFactory.getCommonHttpClient();
  84         bindingConfig.updateFromProperties(componentContext.getProperties());
  85     }
  86
  87     @Override
  88     public Set<ThingTypeUID> getSupportedThingTypeUIDs() {
  89         return SUPPORTED_THING_TYPES_UIDS;
  90     }
  91
  92     @Override
  93     public String getServiceType() {
  94         return SERVICE_TYPE;
  95     }
  96
  97     /**
  98      * Process updates to Binding Config
  99      *
 100      * @param componentContext
 101      */
 102     @Modified
 103     protected void modified(final ComponentContext componentContext) {
 104         logger.debug("Shelly Binding Configuration refreshed");
 105         bindingConfig.updateFromProperties(componentContext.getProperties());
 106     }
 107
 108     @Nullable
 109     @Override
 110     public DiscoveryResult createResult(final ServiceInfo service) {
 111         String name = service.getName().toLowerCase(); // Duao: Name starts with" Shelly" rather than "shelly"
 112         if (!name.startsWith("shelly")) {
 113             return null;
 114         }
 115
 116         String address = "";
 117         try {
 118             String mode = "";
 119             String model = "unknown";
 120             String deviceName = "";
 121             ThingUID thingUID = null;
 122             ShellyDeviceProfile profile = null;
 123             Map<String, Object> properties = new TreeMap<>();
 124
 125             name = service.getName().toLowerCase();
 126             address = service.getHostAddress();
 127             if ((address == null) || address.isEmpty()) {
 128                 logger.trace("{}: Shelly device discovered with empty IP address (service-name={})", name, service);
 129                 return null;
 130             }
 131             String thingType = service.getQualifiedName().contains(SERVICE_TYPE) && name.contains("-")
 132                     ? substringBeforeLast(name, "-")
 133                     : name;
 134             logger.debug("{}: Shelly device discovered: IP-Adress={}, type={}", name, address, thingType);
 135
 136             // Get device settings
 137             Configuration serviceConfig = configurationAdmin.getConfiguration("binding.shelly");
 138             if (serviceConfig.getProperties() != null) {
 139                 bindingConfig.updateFromProperties(serviceConfig.getProperties());
 140             }
 141
 142             ShellyThingConfiguration config = new ShellyThingConfiguration();
 143             config.deviceIp = address;
 144             config.userId = bindingConfig.defaultUserId;
 145             config.password = bindingConfig.defaultPassword;
 146
 147             try {
 148                 ShellyHttpApi api = new ShellyHttpApi(name, config, httpClient);
 149
 150                 profile = api.getDeviceProfile(thingType);
 151                 logger.debug("{}: Shelly settings : {}", name, profile.settingsJson);
 152                 deviceName = getString(profile.settings.name);
 153                 model = getString(profile.settings.device.type);
 154                 mode = profile.mode;
 155
 156                 properties = ShellyBaseHandler.fillDeviceProperties(profile);
 157                 logger.trace("{}: thingType={}, deviceType={}, mode={}, symbolic name={}", name, thingType,
 158                         profile.deviceType, mode.isEmpty() ? "<standard>" : mode, deviceName);
 159
 160                 // get thing type from device name
 161                 thingUID = ShellyThingCreator.getThingUID(name, model, mode, false);
 162             } catch (ShellyApiException e) {
 163                 ShellyApiResult result = e.getApiResult();
 164                 if (result.isHttpAccessUnauthorized()) {
 165                     logger.info("{}: {}", name, messages.get("discovery.protected", address));
 166
 167                     // create shellyunknown thing - will be changed during thing initialization with valid credentials
 168                     thingUID = ShellyThingCreator.getThingUID(name, model, mode, true);
 169                 } else {
 170                     logger.info("{}: {}", name, messages.get("discovery.failed", address, e.toString()));
 171                     logger.debug("{}: Discovery failed", name, e);
 172                 }
 173             } catch (IllegalArgumentException e) { // maybe some format description was buggy
 174                 logger.debug("{}: Discovery failed!", name, e);
 175             }
 176
 177             if (thingUID != null) {
 178                 addProperty(properties, CONFIG_DEVICEIP, address);
 179                 addProperty(properties, PROPERTY_MODEL_ID, model);
 180                 addProperty(properties, PROPERTY_SERVICE_NAME, name);
 181                 addProperty(properties, PROPERTY_DEV_NAME, deviceName);
 182                 addProperty(properties, PROPERTY_DEV_TYPE, thingType);
 183                 addProperty(properties, PROPERTY_DEV_MODE, mode);
 184
 185                 logger.debug("{}: Adding Shelly {}, UID={}", name, deviceName, thingUID.getAsString());
 186                 String thingLabel = deviceName.isEmpty() ? name + " - " + address
 187                         : deviceName + " (" + name + "@" + address + ")";
 188                 return DiscoveryResultBuilder.create(thingUID).withProperties(properties).withLabel(thingLabel)
 189                         .withRepresentationProperty(name).build();
 190             }
 191         } catch (IOException | NullPointerException e) {
 192             // maybe some format description was buggy
 193             logger.debug("{}: Exception on processing serviceInfo '{}'", name, service.getNiceTextString(), e);
 194         }
 195         return null;
 196     }
 197
 198     private void addProperty(Map<String, Object> properties, String key, @Nullable String value) {
 199         properties.put(key, value != null ? value : "");
 200     }
 201
 202     @Nullable
 203     @Override
 204     public ThingUID getThingUID(@Nullable ServiceInfo service) throws IllegalArgumentException {
 205         logger.debug("ServiceInfo {}", service);
 206         if (service == null) {
 207             throw new IllegalArgumentException("service must not be null!");
 208         }
 209         String serviceName = service.getName();
 210         if (serviceName == null) {
 211             throw new IllegalArgumentException("serviceName must not be null!");
 212         }
 213         serviceName = serviceName.toLowerCase();
 214         if (!serviceName.contains(VENDOR.toLowerCase())) {
 215             logger.debug("Not a " + VENDOR + " device!");
 216             return null;
 217         }
 218         return ShellyThingCreator.getThingUID(serviceName, "", "", false);
 219     }
 220 }