/*
- * Sone - FreenetInterface.java - Copyright © 2010–2015 David Roden
+ * Sone - FreenetInterface.java - Copyright © 2010–2016 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 static java.util.logging.Logger.getLogger;
import static net.pterodactylus.sone.freenet.Key.routingKey;
+import java.io.IOException;
import java.net.MalformedURLException;
import java.util.Collections;
import java.util.HashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
+import javax.annotation.Nonnull;
+import javax.inject.Inject;
+
import net.pterodactylus.sone.core.event.ImageInsertAbortedEvent;
import net.pterodactylus.sone.core.event.ImageInsertFailedEvent;
import net.pterodactylus.sone.core.event.ImageInsertFinishedEvent;
import com.google.common.base.Function;
import com.google.common.eventbus.EventBus;
-import com.google.inject.Inject;
import com.google.inject.Singleton;
import freenet.client.ClientMetadata;
+import freenet.client.FetchContext;
import freenet.client.FetchException;
import freenet.client.FetchException.FetchExceptionMode;
import freenet.client.FetchResult;
import freenet.client.InsertBlock;
import freenet.client.InsertContext;
import freenet.client.InsertException;
+import freenet.client.Metadata;
import freenet.client.async.BaseClientPutter;
import freenet.client.async.ClientContext;
+import freenet.client.async.ClientGetCallback;
+import freenet.client.async.ClientGetter;
import freenet.client.async.ClientPutCallback;
import freenet.client.async.ClientPutter;
+import freenet.client.async.SnoopMetadata;
import freenet.client.async.USKCallback;
import freenet.keys.FreenetURI;
import freenet.keys.InsertableClientSSK;
import freenet.keys.USK;
import freenet.node.Node;
import freenet.node.RequestClient;
+import freenet.node.RequestClientBuilder;
import freenet.node.RequestStarter;
import freenet.support.api.Bucket;
import freenet.support.api.RandomAccessBucket;
/**
* Contains all necessary functionality for interacting with the Freenet node.
- *
- * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
@Singleton
public class FreenetInterface {
/** The high-level client to use for requests. */
private final HighLevelSimpleClient client;
+ private final RequestClient requestClient = new RequestClientBuilder().realTime().build();
/** The USK callbacks. */
private final Map<String, USKCallback> soneUskCallbacks = new HashMap<String, USKCallback>();
/** The not-Sone-related USK callbacks. */
private final Map<FreenetURI, USKCallback> uriUskCallbacks = Collections.synchronizedMap(new HashMap<FreenetURI, USKCallback>());
- private final RequestClient imageInserts = new RequestClient() {
- @Override
- public boolean persistent() {
- return false;
- }
-
- @Override
- public boolean realTimeFlag() {
- return true;
- }
- };
+ private final RequestClient imageInserts = new RequestClientBuilder().realTime().build();
+ private final RequestClient imageLoader = new RequestClientBuilder().realTime().build();
/**
* Creates a new Freenet interface.
}
}
+ public void startFetch(final FreenetURI uri, final BackgroundFetchCallback backgroundFetchCallback) {
+ ClientGetCallback callback = new ClientGetCallback() {
+ @Override
+ public void onSuccess(FetchResult result, ClientGetter state) {
+ try {
+ backgroundFetchCallback.loaded(uri, result.getMimeType(), result.asByteArray());
+ } catch (IOException e) {
+ backgroundFetchCallback.failed(uri);
+ }
+ }
+
+ @Override
+ public void onFailure(FetchException e, ClientGetter state) {
+ backgroundFetchCallback.failed(uri);
+ }
+
+ @Override
+ public void onResume(ClientContext context) throws ResumeFailedException {
+ /* do nothing. */
+ }
+
+ @Override
+ public RequestClient getRequestClient() {
+ return imageLoader;
+ }
+ };
+ SnoopMetadata snoop = new SnoopMetadata() {
+ @Override
+ public boolean snoopMetadata(Metadata meta, ClientContext context) {
+ String mimeType = meta.getMIMEType();
+ boolean cancel = (mimeType == null) || backgroundFetchCallback.shouldCancel(uri, mimeType, meta.dataLength());
+ if (cancel) {
+ backgroundFetchCallback.failed(uri);
+ }
+ return cancel;
+ }
+ };
+ FetchContext fetchContext = client.getFetchContext();
+ try {
+ ClientGetter clientGetter = client.fetch(uri, 2097152, callback, fetchContext, RequestStarter.INTERACTIVE_PRIORITY_CLASS);
+ clientGetter.setMetaSnoop(snoop);
+ clientGetter.restart(uri, fetchContext.filterData, node.clientCore.clientContext);
+ } catch (FetchException fe) {
+ /* stupid exception that can not actually be thrown! */
+ }
+ }
+
+ public interface BackgroundFetchCallback {
+ boolean shouldCancel(@Nonnull FreenetURI uri, @Nonnull String mimeType, long size);
+ void loaded(@Nonnull FreenetURI uri, @Nonnull String mimeType, @Nonnull byte[] data);
+ void failed(@Nonnull FreenetURI uri);
+ }
+
/**
* 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
try {
soneUskCallbacks.put(routingKey(requestUri), uskCallback);
node.clientCore.uskManager.subscribe(create(requestUri),
- uskCallback, true, (RequestClient) client);
+ uskCallback, true, requestClient);
} catch (MalformedURLException mue1) {
logger.log(WARNING, format("Could not subscribe USK “%s”!",
requestUri), mue1);
soneUskCallbacks.put(routingKey(requestUri), uskCallback);
node.clientCore
.uskManager
- .subscribe(create(requestUri), uskCallback, false,
- (RequestClient) client);
+ .subscribe(create(requestUri), uskCallback, false, requestClient);
} catch (MalformedURLException mue1) {
logger.log(WARNING,
format("Could not subscribe USK “%s”!", requestUri),
};
try {
- node.clientCore.uskManager.subscribe(USK.create(uri), uskCallback, true, (RequestClient) client);
+ node.clientCore.uskManager.subscribe(USK.create(uri), uskCallback, true, requestClient);
uriUskCallbacks.put(uri, uskCallback);
} catch (MalformedURLException mue1) {
logger.log(Level.WARNING, String.format("Could not subscribe to 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>
*/
public static interface Callback {
* @see ImageInsertStartedEvent
* @see ImageInsertFailedEvent
* @see ImageInsertFinishedEvent
- * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
public class InsertToken implements ClientPutCallback {
}
- public class InsertTokenSupplier implements Function<Image, InsertToken> {
+ public static class InsertTokenSupplier implements Function<Image, InsertToken> {
+
+ private final FreenetInterface freenetInterface;
+
+ @Inject
+ public InsertTokenSupplier(FreenetInterface freenetInterface) {
+ this.freenetInterface = freenetInterface;
+ }
@Override
public InsertToken apply(Image image) {
- return new InsertToken(image);
+ return freenetInterface.new InsertToken(image);
}
}
projects / Sone.git / blobdiff