/*
- * FreenetSone - FreenetInterface.java - Copyright © 2010 David Roden
+ * Sone - FreenetInterface.java - Copyright © 2010–2013 David Roden
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
import java.util.logging.Level;
import java.util.logging.Logger;
+import net.pterodactylus.sone.core.event.ImageInsertAbortedEvent;
+import net.pterodactylus.sone.core.event.ImageInsertFailedEvent;
+import net.pterodactylus.sone.core.event.ImageInsertFinishedEvent;
+import net.pterodactylus.sone.core.event.ImageInsertStartedEvent;
+import net.pterodactylus.sone.data.Image;
import net.pterodactylus.sone.data.Sone;
-import net.pterodactylus.util.collection.Pair;
+import net.pterodactylus.sone.data.TemporaryImage;
import net.pterodactylus.util.logging.Logging;
import com.db4o.ObjectContainer;
+import com.google.common.eventbus.EventBus;
+import com.google.inject.Inject;
+import freenet.client.ClientMetadata;
import freenet.client.FetchException;
import freenet.client.FetchResult;
import freenet.client.HighLevelSimpleClient;
import freenet.client.HighLevelSimpleClientImpl;
+import freenet.client.InsertBlock;
+import freenet.client.InsertContext;
import freenet.client.InsertException;
+import freenet.client.async.BaseClientPutter;
import freenet.client.async.ClientContext;
+import freenet.client.async.ClientPutCallback;
+import freenet.client.async.ClientPutter;
import freenet.client.async.USKCallback;
import freenet.keys.FreenetURI;
+import freenet.keys.InsertableClientSSK;
import freenet.keys.USK;
import freenet.node.Node;
import freenet.node.RequestStarter;
+import freenet.support.api.Bucket;
+import freenet.support.io.ArrayBucket;
/**
* Contains all necessary functionality for interacting with the Freenet node.
/** The logger. */
private static final Logger logger = Logging.getLogger(FreenetInterface.class);
+ /** The event bus. */
+ private final EventBus eventBus;
+
/** The node to interact with. */
private final Node node;
/**
* Creates a new Freenet interface.
*
+ * @param eventBus
+ * The event bus
* @param node
* The node to interact with
*/
- public FreenetInterface(Node node) {
+ @Inject
+ public FreenetInterface(EventBus eventBus, Node node) {
+ this.eventBus = eventBus;
this.node = node;
this.client = node.clientCore.makeClient(RequestStarter.INTERACTIVE_PRIORITY_CLASS, false, true);
}
* The URI to fetch
* @return The result of the fetch, or {@code null} if an error occured
*/
- public Pair<FreenetURI, FetchResult> fetchUri(FreenetURI uri) {
+ public Fetched fetchUri(FreenetURI uri) {
FetchResult fetchResult = null;
FreenetURI currentUri = new FreenetURI(uri);
while (true) {
try {
fetchResult = client.fetch(currentUri);
- return new Pair<FreenetURI, FetchResult>(currentUri, fetchResult);
+ return new Fetched(currentUri, fetchResult);
} catch (FetchException fe1) {
if (fe1.getMode() == FetchException.PERMANENT_REDIRECT) {
currentUri = fe1.newURI;
continue;
}
- logger.log(Level.WARNING, "Could not fetch “" + uri + "”!", fe1);
+ logger.log(Level.WARNING, String.format("Could not fetch “%s”!", uri), fe1);
return null;
}
}
}
/**
+ * Inserts the image data of the given {@link TemporaryImage} and returns
+ * the given insert token that can be used to add listeners or cancel the
+ * insert.
+ *
+ * @param temporaryImage
+ * The temporary image data
+ * @param image
+ * The image
+ * @param insertToken
+ * The insert token
+ * @throws SoneException
+ * if the insert could not be started
+ */
+ public void insertImage(TemporaryImage temporaryImage, Image image, InsertToken insertToken) throws SoneException {
+ String filenameHint = image.getId() + "." + temporaryImage.getMimeType().substring(temporaryImage.getMimeType().lastIndexOf("/") + 1);
+ InsertableClientSSK key = InsertableClientSSK.createRandom(node.random, "");
+ FreenetURI targetUri = key.getInsertURI().setDocName(filenameHint);
+ InsertContext insertContext = client.getInsertContext(true);
+ Bucket bucket = new ArrayBucket(temporaryImage.getImageData());
+ ClientMetadata metadata = new ClientMetadata(temporaryImage.getMimeType());
+ InsertBlock insertBlock = new InsertBlock(bucket, metadata, targetUri);
+ try {
+ ClientPutter clientPutter = client.insert(insertBlock, false, null, false, insertContext, insertToken, RequestStarter.INTERACTIVE_PRIORITY_CLASS);
+ insertToken.setClientPutter(clientPutter);
+ } catch (InsertException ie1) {
+ throw new SoneInsertException("Could not start image insert.", ie1);
+ }
+ }
+
+ /**
* Inserts a directory into Freenet.
*
* @param insertUri
try {
return client.insertManifest(insertUri, manifestEntries, defaultFile);
} catch (InsertException ie1) {
- throw new SoneException(null, ie1);
+ throw new SoneException(ie1);
}
}
*/
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" }) });
+ logger.log(Level.FINE, String.format("Registering Sone “%s” for USK updates at %s…", 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 });
+ logger.log(Level.FINE, String.format("Found USK update for Sone “%s” at %s, new known good: %s, new slot too: %s.", sone, key, newKnownGood, newSlotToo));
if (edition > sone.getLatestEdition()) {
sone.setLatestEdition(edition);
new Thread(new Runnable() {
soneUskCallbacks.put(sone.getId(), uskCallback);
node.clientCore.uskManager.subscribe(USK.create(sone.getRequestUri()), uskCallback, (System.currentTimeMillis() - sone.getTime()) < 7 * 24 * 60 * 60 * 1000, (HighLevelSimpleClientImpl) client);
} catch (MalformedURLException mue1) {
- logger.log(Level.WARNING, "Could not subscribe USK “" + sone.getRequestUri() + "”!", mue1);
+ logger.log(Level.WARNING, String.format("Could not subscribe USK “%s”!", sone.getRequestUri()), mue1);
}
}
return;
}
try {
- logger.log(Level.FINEST, "Unsubscribing from USK for %s…", new Object[] { sone });
+ logger.log(Level.FINEST, String.format("Unsubscribing from USK for %s…", sone));
node.clientCore.uskManager.unsubscribe(USK.create(sone.getRequestUri()), uskCallback);
} catch (MalformedURLException mue1) {
- logger.log(Level.FINE, "Could not unsubscribe USK “" + sone.getRequestUri() + "”!", mue1);
+ logger.log(Level.FINE, String.format("Could not unsubscribe USK “%s”!", sone.getRequestUri()), mue1);
}
}
node.clientCore.uskManager.subscribe(USK.create(uri), uskCallback, true, (HighLevelSimpleClientImpl) client);
uriUskCallbacks.put(uri, uskCallback);
} catch (MalformedURLException mue1) {
- logger.log(Level.WARNING, "Could not subscribe to USK: " + uri, uri);
+ logger.log(Level.WARNING, String.format("Could not subscribe to USK: %s", uri), mue1);
}
}
public void unregisterUsk(FreenetURI uri) {
USKCallback uskCallback = uriUskCallbacks.remove(uri);
if (uskCallback == null) {
- logger.log(Level.INFO, "Could not unregister unknown USK: " + uri);
+ logger.log(Level.INFO, String.format("Could not unregister unknown USK: %s", uri));
return;
}
try {
node.clientCore.uskManager.unsubscribe(USK.create(uri), uskCallback);
} catch (MalformedURLException mue1) {
- logger.log(Level.INFO, "Could not unregister invalid USK: " + uri);
+ logger.log(Level.INFO, String.format("Could not unregister invalid USK: %s", uri), mue1);
}
}
/**
+ * Container for a fetched URI and the {@link FetchResult}.
+ *
+ * @author <a href="mailto:d.roden@xplosion.de">David Roden</a>
+ */
+ public static class Fetched {
+
+ /** The fetched URI. */
+ private final FreenetURI freenetUri;
+
+ /** The fetch result. */
+ private final FetchResult fetchResult;
+
+ /**
+ * Creates a new fetched URI.
+ *
+ * @param freenetUri
+ * The URI that was fetched
+ * @param fetchResult
+ * The fetch result
+ */
+ public Fetched(FreenetURI freenetUri, FetchResult fetchResult) {
+ this.freenetUri = freenetUri;
+ this.fetchResult = fetchResult;
+ }
+
+ //
+ // ACCESSORS
+ //
+
+ /**
+ * Returns the fetched URI.
+ *
+ * @return The fetched URI
+ */
+ public FreenetURI getFreenetUri() {
+ return freenetUri;
+ }
+
+ /**
+ * Returns the fetch result.
+ *
+ * @return The fetch result
+ */
+ public FetchResult getFetchResult() {
+ return fetchResult;
+ }
+
+ }
+
+ /**
* Callback for USK watcher events.
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
}
+ /**
+ * Insert token that can cancel a running insert and sends events.
+ *
+ * @see ImageInsertAbortedEvent
+ * @see ImageInsertStartedEvent
+ * @see ImageInsertFailedEvent
+ * @see ImageInsertFinishedEvent
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+ public class InsertToken implements ClientPutCallback {
+
+ /** The image being inserted. */
+ private final Image image;
+
+ /** The client putter. */
+ private ClientPutter clientPutter;
+
+ /** The final URI. */
+ private volatile FreenetURI resultingUri;
+
+ /**
+ * Creates a new insert token for the given image.
+ *
+ * @param image
+ * The image being inserted
+ */
+ public InsertToken(Image image) {
+ this.image = image;
+ }
+
+ //
+ // ACCESSORS
+ //
+
+ /**
+ * Sets the client putter that is inserting the image. This will also
+ * signal all registered listeners that the image has started.
+ *
+ * @param clientPutter
+ * The client putter
+ */
+ @SuppressWarnings("synthetic-access")
+ public void setClientPutter(ClientPutter clientPutter) {
+ this.clientPutter = clientPutter;
+ eventBus.post(new ImageInsertStartedEvent(image));
+ }
+
+ //
+ // ACTIONS
+ //
+
+ /**
+ * Cancels the running insert.
+ */
+ @SuppressWarnings("synthetic-access")
+ public void cancel() {
+ clientPutter.cancel(null, node.clientCore.clientContext);
+ eventBus.post(new ImageInsertAbortedEvent(image));
+ }
+
+ //
+ // INTERFACE ClientPutCallback
+ //
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void onMajorProgress(ObjectContainer objectContainer) {
+ /* ignore, we don’t care. */
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void onFailure(InsertException insertException, BaseClientPutter clientPutter, ObjectContainer objectContainer) {
+ if ((insertException != null) && ("Cancelled by user".equals(insertException.getMessage()))) {
+ eventBus.post(new ImageInsertAbortedEvent(image));
+ } else {
+ eventBus.post(new ImageInsertFailedEvent(image, insertException));
+ }
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void onFetchable(BaseClientPutter clientPutter, ObjectContainer objectContainer) {
+ /* ignore, we don’t care. */
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void onGeneratedMetadata(Bucket metadata, BaseClientPutter clientPutter, ObjectContainer objectContainer) {
+ /* ignore, we don’t care. */
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void onGeneratedURI(FreenetURI generatedUri, BaseClientPutter clientPutter, ObjectContainer objectContainer) {
+ resultingUri = generatedUri;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void onSuccess(BaseClientPutter clientPutter, ObjectContainer objectContainer) {
+ eventBus.post(new ImageInsertFinishedEvent(image, resultingUri));
+ }
+
+ }
+
}