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