X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fcore%2FFreenetInterface.java;h=d823cc1ffb5cddd36b91cfa18c32c62664973115;hb=aa6e20dc73835b02bc434ca064b36838f19a67db;hp=aa46f936608dbf0fe64ff8cfd933478a7fda9bce;hpb=80b69bbf2b53e5587088a1e8b8764aeb92e1c1ae;p=Sone.git

diff --git a/src/main/java/net/pterodactylus/sone/core/FreenetInterface.java b/src/main/java/net/pterodactylus/sone/core/FreenetInterface.java
index aa46f93..d823cc1 100644
--- a/src/main/java/net/pterodactylus/sone/core/FreenetInterface.java
+++ b/src/main/java/net/pterodactylus/sone/core/FreenetInterface.java
@@ -17,18 +17,29 @@
 
 package net.pterodactylus.sone.core;
 
+import java.net.MalformedURLException;
 import java.util.HashMap;
+import java.util.Map;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import net.pterodactylus.sone.data.Sone;
 import net.pterodactylus.util.logging.Logging;
 import net.pterodactylus.util.service.AbstractService;
+
+import com.db4o.ObjectContainer;
+
 import freenet.client.FetchException;
 import freenet.client.FetchResult;
 import freenet.client.HighLevelSimpleClient;
+import freenet.client.HighLevelSimpleClientImpl;
 import freenet.client.InsertException;
+import freenet.client.async.ClientContext;
+import freenet.client.async.USKCallback;
 import freenet.keys.FreenetURI;
+import freenet.keys.USK;
 import freenet.node.Node;
+import freenet.node.RequestStarter;
 
 /**
  * Contains all necessary functionality for interacting with the Freenet node.
@@ -41,12 +52,14 @@ public class FreenetInterface extends AbstractService {
 	private static final Logger logger = Logging.getLogger(FreenetInterface.class);
 
 	/** The node to interact with. */
-	@SuppressWarnings("unused")
 	private final Node node;
 
 	/** The high-level client to use for requests. */
 	private final HighLevelSimpleClient client;
 
+	/** The USK callbacks. */
+	private final Map<String, USKCallback> soneUskCallbacks = new HashMap<String, USKCallback>();
+
 	/**
 	 * Creates a new Freenet interface.
 	 *
@@ -56,6 +69,7 @@ public class FreenetInterface extends AbstractService {
 	 *            The high-level client
 	 */
 	public FreenetInterface(Node node, HighLevelSimpleClient client) {
+		super("Sone Freenet Interface");
 		this.node = node;
 		this.client = client;
 	}
@@ -115,4 +129,64 @@ public class FreenetInterface extends AbstractService {
 		}
 	}
 
+	/**
+	 * Registers the USK for the given Sone and notifies the given
+	 * {@link SoneDownloader} if an update was found.
+	 *
+	 * @param sone
+	 *            The Sone to watch
+	 * @param soneDownloader
+	 *            The Sone download to notify on updates
+	 */
+	public void registerUsk(final Sone sone, final SoneDownloader soneDownloader) {
+		try {
+			logger.log(Level.FINE, "Registering Sone “%s” for USK updates at %s…", new Object[] { sone, sone.getRequestUri().setMetaString(new String[] { "sone.xml" }) });
+			USKCallback uskCallback = new USKCallback() {
+
+				@Override
+				@SuppressWarnings("synthetic-access")
+				public void onFoundEdition(long edition, USK key, ObjectContainer objectContainer, ClientContext clientContext, boolean metadata, short codec, byte[] data, boolean newKnownGood, boolean newSlotToo) {
+					logger.log(Level.FINE, "Found USK update for Sone “%s” at %s, new known good: %s, new slot too: %s.", new Object[] { sone, key, newKnownGood, newSlotToo });
+					if (newKnownGood) {
+						sone.updateUris(key.getURI());
+						soneDownloader.fetchSone(sone);
+					}
+				}
+
+				@Override
+				public short getPollingPriorityProgress() {
+					return RequestStarter.INTERACTIVE_PRIORITY_CLASS;
+				}
+
+				@Override
+				public short getPollingPriorityNormal() {
+					return RequestStarter.INTERACTIVE_PRIORITY_CLASS;
+				}
+			};
+			soneUskCallbacks.put(sone.getId(), uskCallback);
+			node.clientCore.uskManager.subscribe(USK.create(sone.getRequestUri()), uskCallback, true, (HighLevelSimpleClientImpl) client);
+		} catch (MalformedURLException mue1) {
+			logger.log(Level.WARNING, "Could not subscribe USK “" + sone.getRequestUri() + "”!", mue1);
+		}
+	}
+
+	/**
+	 * Unsubscribes the request URI of the given Sone.
+	 *
+	 * @param sone
+	 *            The Sone to unregister
+	 */
+	public void unregisterUsk(Sone sone) {
+		USKCallback uskCallback = soneUskCallbacks.remove(sone.getId());
+		if (uskCallback == null) {
+			return;
+		}
+		try {
+			logger.log(Level.FINEST, "Unsubscribing from USK for %s…", new Object[] { sone });
+			node.clientCore.uskManager.unsubscribe(USK.create(sone.getRequestUri()), uskCallback);
+		} catch (MalformedURLException mue1) {
+			logger.log(Level.FINE, "Could not unsubscribe USK “" + sone.getRequestUri() + "”!", mue1);
+		}
+	}
+
 }