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   1 /**
   2  * Copyright (c) 2010-2023 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.boschindego.internal.handler;
  14
  15 import static org.openhab.binding.boschindego.internal.BoschIndegoBindingConstants.*;
  16
  17 import java.io.IOException;
  18 import java.util.ArrayList;
  19 import java.util.Collection;
  20 import java.util.List;
  21 import java.util.Set;
  22 import java.util.concurrent.ConcurrentHashMap;
  23
  24 import org.eclipse.jdt.annotation.NonNullByDefault;
  25 import org.eclipse.jetty.client.HttpClient;
  26 import org.openhab.binding.boschindego.internal.AuthorizationController;
  27 import org.openhab.binding.boschindego.internal.AuthorizationListener;
  28 import org.openhab.binding.boschindego.internal.AuthorizationProvider;
  29 import org.openhab.binding.boschindego.internal.IndegoController;
  30 import org.openhab.binding.boschindego.internal.discovery.IndegoDiscoveryService;
  31 import org.openhab.binding.boschindego.internal.dto.response.DevicePropertiesResponse;
  32 import org.openhab.binding.boschindego.internal.exceptions.IndegoAuthenticationException;
  33 import org.openhab.binding.boschindego.internal.exceptions.IndegoException;
  34 import org.openhab.core.auth.client.oauth2.OAuthClientService;
  35 import org.openhab.core.auth.client.oauth2.OAuthException;
  36 import org.openhab.core.auth.client.oauth2.OAuthFactory;
  37 import org.openhab.core.auth.client.oauth2.OAuthResponseException;
  38 import org.openhab.core.thing.Bridge;
  39 import org.openhab.core.thing.ChannelUID;
  40 import org.openhab.core.thing.ThingStatus;
  41 import org.openhab.core.thing.ThingStatusDetail;
  42 import org.openhab.core.thing.binding.BaseBridgeHandler;
  43 import org.openhab.core.thing.binding.ThingHandlerService;
  44 import org.openhab.core.types.Command;
  45 import org.slf4j.Logger;
  46 import org.slf4j.LoggerFactory;
  47
  48 /**
  49  * The {@link BoschAccountHandler} is responsible for handling commands, which are
  50  * sent to one of the channels.
  51  *
  52  * @author Jacob Laursen - Initial contribution
  53  */
  54 @NonNullByDefault
  55 public class BoschAccountHandler extends BaseBridgeHandler implements AuthorizationListener {
  56
  57     private final Logger logger = LoggerFactory.getLogger(BoschAccountHandler.class);
  58     private final OAuthFactory oAuthFactory;
  59     private final Set<AuthorizationListener> authorizationListeners = ConcurrentHashMap.newKeySet();
  60
  61     private OAuthClientService oAuthClientService;
  62     private AuthorizationController authorizationController;
  63     private IndegoController controller;
  64
  65     public BoschAccountHandler(Bridge bridge, HttpClient httpClient, OAuthFactory oAuthFactory) {
  66         super(bridge);
  67
  68         this.oAuthFactory = oAuthFactory;
  69
  70         oAuthClientService = oAuthFactory.createOAuthClientService(thing.getUID().getAsString(), BSK_TOKEN_URI,
  71                 BSK_AUTH_URI, BSK_CLIENT_ID, null, BSK_SCOPE, false);
  72         authorizationController = new AuthorizationController(oAuthClientService, this);
  73         controller = new IndegoController(httpClient, authorizationController);
  74     }
  75
  76     @Override
  77     public void initialize() {
  78         OAuthClientService oAuthClientService = oAuthFactory.getOAuthClientService(thing.getUID().getAsString());
  79         if (oAuthClientService == null) {
  80             throw new IllegalStateException("OAuth handle doesn't exist");
  81         }
  82         authorizationController.setOAuthClientService(oAuthClientService);
  83         this.oAuthClientService = oAuthClientService;
  84
  85         updateStatus(ThingStatus.UNKNOWN);
  86
  87         scheduler.execute(() -> {
  88             try {
  89                 authorizationController.getAccessToken();
  90                 updateStatus(ThingStatus.ONLINE);
  91             } catch (OAuthException | OAuthResponseException e) {
  92                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.OFFLINE.CONFIGURATION_ERROR,
  93                         "@text/offline.conf-error.oauth2-unauthorized");
  94             } catch (IOException e) {
  95                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.OFFLINE.COMMUNICATION_ERROR,
  96                         "@text/offline.comm-error.oauth2-authorization-failed");
  97             }
  98         });
  99     }
 100
 101     @Override
 102     public void dispose() {
 103         oAuthFactory.ungetOAuthService(thing.getUID().getAsString());
 104         authorizationListeners.clear();
 105     }
 106
 107     @Override
 108     public void handleCommand(ChannelUID channelUID, Command command) {
 109     }
 110
 111     @Override
 112     public void handleRemoval() {
 113         oAuthFactory.deleteServiceAndAccessToken(thing.getUID().getAsString());
 114         super.handleRemoval();
 115     }
 116
 117     public AuthorizationProvider getAuthorizationProvider() {
 118         return authorizationController;
 119     }
 120
 121     public void registerAuthorizationListener(AuthorizationListener listener) {
 122         if (!authorizationListeners.add(listener)) {
 123             throw new IllegalStateException("Attempt to register already registered authorization listener");
 124         }
 125     }
 126
 127     public void unregisterAuthorizationListener(AuthorizationListener listener) {
 128         if (!authorizationListeners.remove(listener)) {
 129             throw new IllegalStateException("Attempt to unregister authorization listener which is not registered");
 130         }
 131     }
 132
 133     public void onSuccessfulAuthorization() {
 134         updateStatus(ThingStatus.ONLINE);
 135     }
 136
 137     public void onFailedAuthorization(Throwable throwable) {
 138         logger.debug("Authorization failure", throwable);
 139         if (throwable instanceof IndegoAuthenticationException) {
 140             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
 141                     "@text/offline.comm-error.authentication-failure");
 142         } else {
 143             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, throwable.getMessage());
 144         }
 145     }
 146
 147     public void onAuthorizationFlowCompleted() {
 148         // Ignore
 149     }
 150
 151     @Override
 152     public Collection<Class<? extends ThingHandlerService>> getServices() {
 153         return List.of(IndegoDiscoveryService.class);
 154     }
 155
 156     public void authorize(String authCode) throws IndegoAuthenticationException {
 157         logger.info("Attempting to authorize using authorization code");
 158
 159         try {
 160             oAuthClientService.getAccessTokenResponseByAuthorizationCode(authCode, BSK_REDIRECT_URI);
 161         } catch (OAuthException | OAuthResponseException | IOException e) {
 162             throw new IndegoAuthenticationException("Failed to authorize by authorization code " + authCode, e);
 163         }
 164
 165         logger.info("Authorization completed successfully");
 166
 167         updateStatus(ThingStatus.ONLINE, ThingStatusDetail.NONE, "@text/online.authorization-completed");
 168
 169         authorizationListeners.forEach(l -> l.onAuthorizationFlowCompleted());
 170     }
 171
 172     public Collection<DevicePropertiesResponse> getDevices() throws IndegoException {
 173         Collection<String> serialNumbers = controller.getSerialNumbers();
 174         List<DevicePropertiesResponse> devices = new ArrayList<DevicePropertiesResponse>(serialNumbers.size());
 175
 176         for (String serialNumber : serialNumbers) {
 177             DevicePropertiesResponse properties = controller.getDeviceProperties(serialNumber);
 178             if (properties.serialNumber == null) {
 179                 properties.serialNumber = serialNumber;
 180             }
 181             devices.add(properties);
 182         }
 183
 184         return devices;
 185     }
 186 }