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   1 /**
   2  * Copyright (c) 2010-2022 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.jellyfin.internal.discovery;
  14
  15 import static org.openhab.binding.jellyfin.internal.JellyfinBindingConstants.*;
  16
  17 import java.net.URI;
  18 import java.net.URISyntaxException;
  19 import java.util.HashMap;
  20 import java.util.Map;
  21 import java.util.Objects;
  22 import java.util.Set;
  23
  24 import org.eclipse.jdt.annotation.NonNullByDefault;
  25 import org.eclipse.jdt.annotation.Nullable;
  26 import org.jellyfin.sdk.Jellyfin;
  27 import org.jellyfin.sdk.JellyfinOptions;
  28 import org.jellyfin.sdk.api.client.exception.ApiClientException;
  29 import org.jellyfin.sdk.api.operations.SystemApi;
  30 import org.jellyfin.sdk.compatibility.JavaFlow;
  31 import org.jellyfin.sdk.model.ClientInfo;
  32 import org.jellyfin.sdk.model.DeviceInfo;
  33 import org.jellyfin.sdk.model.api.PublicSystemInfo;
  34 import org.jellyfin.sdk.model.api.ServerDiscoveryInfo;
  35 import org.openhab.binding.jellyfin.internal.util.SyncCallback;
  36 import org.openhab.binding.jellyfin.internal.util.SyncResponse;
  37 import org.openhab.core.OpenHAB;
  38 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  39 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  40 import org.openhab.core.config.discovery.DiscoveryService;
  41 import org.openhab.core.thing.Thing;
  42 import org.openhab.core.thing.ThingUID;
  43 import org.osgi.service.component.annotations.Component;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 /**
  48  * The {@link JellyfinServerDiscoveryService} discover Jellyfin servers in the network.
  49  *
  50  * @author Miguel Alvarez - Initial contribution
  51  */
  52 @NonNullByDefault
  53 @Component(service = DiscoveryService.class, configurationPid = "discovery.jellyfin")
  54 public class JellyfinServerDiscoveryService extends AbstractDiscoveryService {
  55     private final Logger logger = LoggerFactory.getLogger(JellyfinServerDiscoveryService.class);
  56     private JavaFlow.@Nullable FlowJob cancelDiscovery;
  57
  58     public JellyfinServerDiscoveryService() throws IllegalArgumentException {
  59         super(Set.of(THING_TYPE_CLIENT), 60);
  60     }
  61
  62     @Override
  63     protected void startScan() {
  64         var opts = new JellyfinOptions.Builder();
  65         opts.setClientInfo(new ClientInfo("openHAB", OpenHAB.getVersion()));
  66         opts.setDeviceInfo(new DeviceInfo("discovery", "openHAB"));
  67         var jellyfin = new Jellyfin(opts.build());
  68         var discoverySvc = new org.jellyfin.sdk.discovery.DiscoveryService(jellyfin);
  69         logger.debug("Starting search");
  70         cancelDiscovery = JavaFlow.collect(discoverySvc.discoverLocalServers(100, 10), null, (info) -> {
  71             if (info == null) {
  72                 return;
  73             }
  74             logger.debug("Server found: [{}] {}", info.getId(), info.getName());
  75             processDiscoveryResult(jellyfin, info);
  76         }, (throwable) -> {
  77             if (throwable != null) {
  78                 logger.warn("Discovery Error: {}", throwable.getMessage());
  79             } else {
  80                 logger.debug("Discovery ends");
  81             }
  82         });
  83     }
  84
  85     @Override
  86     protected synchronized void stopScan() {
  87         super.stopScan();
  88         var cancelDiscovery = this.cancelDiscovery;
  89         if (cancelDiscovery != null) {
  90             cancelDiscovery.close();
  91             this.cancelDiscovery = null;
  92         }
  93     }
  94
  95     private void processDiscoveryResult(Jellyfin jellyfin, ServerDiscoveryInfo info) {
  96         URI uri;
  97         try {
  98             uri = new URI(Objects.requireNonNull(info.getAddress()));
  99         } catch (URISyntaxException e) {
 100             logger.warn("Error parsing server url: {}", e.getMessage());
 101             return;
 102         }
 103         var jellyClient = jellyfin.createApi(info.getAddress());
 104         var asyncResponse = new SyncResponse<PublicSystemInfo>();
 105         new SystemApi(jellyClient).getPublicSystemInfo(asyncResponse);
 106         try {
 107             var publicSystemInfo = asyncResponse.awaitContent();
 108             discoverServer(uri.getHost(), uri.getPort(), uri.getScheme().equalsIgnoreCase("https"), publicSystemInfo);
 109         } catch (SyncCallback.SyncCallbackError | ApiClientException e) {
 110             logger.warn("Discovery error: {}", e.getMessage());
 111         }
 112     }
 113
 114     private void discoverServer(String hostname, int port, boolean ssl, PublicSystemInfo publicSystemInfo) {
 115         logger.debug("Server discovered: [{}:{}] {}", hostname, port, publicSystemInfo.getServerName());
 116         var id = Objects.requireNonNull(publicSystemInfo.getId());
 117         Map<String, Object> properties = new HashMap<>();
 118         properties.put("hostname", hostname);
 119         properties.put("port", port);
 120         properties.put("ssl", ssl);
 121         properties.put(Thing.PROPERTY_SERIAL_NUMBER, id);
 122         var productName = publicSystemInfo.getProductName();
 123         if (productName != null) {
 124             properties.put(Thing.PROPERTY_VENDOR, productName);
 125         }
 126         var version = publicSystemInfo.getVersion();
 127         if (version != null) {
 128             properties.put(Thing.PROPERTY_FIRMWARE_VERSION, version);
 129         }
 130         thingDiscovered(DiscoveryResultBuilder.create(new ThingUID(THING_TYPE_SERVER, publicSystemInfo.getId()))
 131                 .withTTL(DISCOVERY_RESULT_TTL_SEC).withRepresentationProperty(Thing.PROPERTY_SERIAL_NUMBER)
 132                 .withProperties(properties).withLabel(publicSystemInfo.getServerName()).build());
 133     }
 134 }