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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.tesla.internal.command;
  14
  15 import static org.openhab.binding.tesla.internal.TeslaBindingConstants.*;
  16
  17 import java.io.BufferedReader;
  18 import java.io.InputStreamReader;
  19 import java.util.Arrays;
  20 import java.util.List;
  21
  22 import javax.ws.rs.client.Client;
  23 import javax.ws.rs.client.ClientBuilder;
  24 import javax.ws.rs.client.Entity;
  25 import javax.ws.rs.client.WebTarget;
  26 import javax.ws.rs.core.MediaType;
  27 import javax.ws.rs.core.Response;
  28
  29 import org.eclipse.jdt.annotation.NonNullByDefault;
  30 import org.eclipse.jdt.annotation.Nullable;
  31 import org.openhab.binding.tesla.internal.TeslaBindingConstants;
  32 import org.openhab.binding.tesla.internal.discovery.TeslaAccountDiscoveryService;
  33 import org.openhab.binding.tesla.internal.protocol.TokenRequest;
  34 import org.openhab.binding.tesla.internal.protocol.TokenRequestPassword;
  35 import org.openhab.binding.tesla.internal.protocol.TokenResponse;
  36 import org.openhab.core.config.discovery.DiscoveryResult;
  37 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  38 import org.openhab.core.io.console.Console;
  39 import org.openhab.core.io.console.extensions.AbstractConsoleCommandExtension;
  40 import org.openhab.core.io.console.extensions.ConsoleCommandExtension;
  41 import org.openhab.core.thing.ThingUID;
  42 import org.openhab.core.util.UIDUtils;
  43 import org.osgi.service.component.annotations.Activate;
  44 import org.osgi.service.component.annotations.Component;
  45 import org.osgi.service.component.annotations.Reference;
  46 import org.osgi.service.component.annotations.ReferenceCardinality;
  47 import org.slf4j.Logger;
  48 import org.slf4j.LoggerFactory;
  49
  50 import com.google.gson.Gson;
  51
  52 /**
  53  * Console commands for interacting with the Tesla integration
  54  *
  55  * @author Nicolai Grødum - Initial contribution
  56  * @author Kai Kreuzer - refactored to use Tesla account thing
  57  */
  58 @NonNullByDefault
  59 @Component(service = ConsoleCommandExtension.class)
  60 public class TeslaCommandExtension extends AbstractConsoleCommandExtension {
  61
  62     private static final String CMD_LOGIN = "login";
  63
  64     private final Logger logger = LoggerFactory.getLogger(TeslaCommandExtension.class);
  65
  66     @Reference(cardinality = ReferenceCardinality.OPTIONAL)
  67     private @Nullable ClientBuilder injectedClientBuilder;
  68
  69     private @Nullable WebTarget tokenTarget;
  70
  71     private final TeslaAccountDiscoveryService teslaAccountDiscoveryService;
  72
  73     @Activate
  74     public TeslaCommandExtension(@Reference TeslaAccountDiscoveryService teslaAccountDiscoveryService) {
  75         super("tesla", "Interact with the Tesla integration.");
  76         this.teslaAccountDiscoveryService = teslaAccountDiscoveryService;
  77     }
  78
  79     @Override
  80     public void execute(String[] args, Console console) {
  81         if (args.length > 0) {
  82             String subCommand = args[0];
  83             switch (subCommand) {
  84                 case CMD_LOGIN:
  85                     if (args.length == 1) {
  86                         try {
  87                             BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  88                             console.print("Username (email): ");
  89                             String username = br.readLine();
  90                             console.println(username);
  91
  92                             console.print("Password: ");
  93
  94                             String pwd = br.readLine();
  95                             console.println("");
  96                             console.println("Attempting login...");
  97                             login(console, username, pwd);
  98                         } catch (Exception e) {
  99                             console.println(e.toString());
 100                         }
 101                     } else if (args.length == 3) {
 102                         login(console, args[1], args[2]);
 103                     } else {
 104                         printUsage(console);
 105                     }
 106                     break;
 107
 108                 default:
 109                     console.println("Unknown command '" + subCommand + "'");
 110                     printUsage(console);
 111                     break;
 112             }
 113         }
 114     }
 115
 116     @Override
 117     public List<String> getUsages() {
 118         return Arrays.asList(buildCommandUsage(CMD_LOGIN + " [<user email>] [<password>]",
 119                 "Authenticates the user and provides a refresh token."));
 120     }
 121
 122     private void login(Console console, String username, String password) {
 123         try {
 124             Gson gson = new Gson();
 125
 126             TokenRequest token = new TokenRequestPassword(username, password);
 127             String payLoad = gson.toJson(token);
 128
 129             Response response = getTokenTarget().request()
 130                     .post(Entity.entity(payLoad, MediaType.APPLICATION_JSON_TYPE));
 131
 132             if (response != null) {
 133                 if (response.getStatus() == 200 && response.hasEntity()) {
 134                     String responsePayLoad = response.readEntity(String.class);
 135                     TokenResponse tokenResponse = gson.fromJson(responsePayLoad.trim(), TokenResponse.class);
 136                     console.println("Refresh token: " + tokenResponse.refresh_token);
 137
 138                     ThingUID thingUID = new ThingUID(TeslaBindingConstants.THING_TYPE_ACCOUNT,
 139                             UIDUtils.encode(username));
 140                     DiscoveryResult result = DiscoveryResultBuilder.create(thingUID).withLabel("Tesla Account")
 141                             .withProperty(TeslaBindingConstants.CONFIG_REFRESHTOKEN, tokenResponse.refresh_token)
 142                             .withProperty(TeslaBindingConstants.CONFIG_USERNAME, username)
 143                             .withRepresentationProperty(TeslaBindingConstants.CONFIG_USERNAME).build();
 144                     teslaAccountDiscoveryService.thingDiscovered(result);
 145                 } else {
 146                     console.println(
 147                             "Failure: " + response.getStatus() + " " + response.getStatusInfo().getReasonPhrase());
 148                 }
 149             }
 150         } catch (Exception e) {
 151             console.println("Failed to retrieve token: " + e.getMessage());
 152             logger.error("Could not get refresh token.", e);
 153         }
 154     }
 155
 156     private synchronized WebTarget getTokenTarget() {
 157         WebTarget target = this.tokenTarget;
 158         if (target != null) {
 159             return target;
 160         } else {
 161             Client client;
 162             try {
 163                 client = ClientBuilder.newBuilder().build();
 164             } catch (Exception e) {
 165                 // we seem to have no Jersey, so let's hope for an injected builder by CXF
 166                 if (this.injectedClientBuilder != null) {
 167                     client = injectedClientBuilder.build();
 168                 } else {
 169                     throw new IllegalStateException("No JAX RS Client Builder available.");
 170                 }
 171             }
 172             WebTarget teslaTarget = client.target(URI_OWNERS);
 173             target = teslaTarget.path(URI_ACCESS_TOKEN);
 174             this.tokenTarget = target;
 175             return target;
 176         }
 177     }
 178 }