package net.pterodactylus.fcp.highlevel;
+import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetAddress;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
-import java.util.Set;
import java.util.Map.Entry;
+import java.util.Set;
import java.util.concurrent.CountDownLatch;
import net.pterodactylus.fcp.AddPeer;
+import net.pterodactylus.fcp.AllData;
+import net.pterodactylus.fcp.ClientGet;
import net.pterodactylus.fcp.ClientHello;
import net.pterodactylus.fcp.CloseConnectionDuplicateClientName;
import net.pterodactylus.fcp.DataFound;
import net.pterodactylus.fcp.WatchGlobal;
import net.pterodactylus.util.filter.Filter;
import net.pterodactylus.util.filter.Filters;
+import net.pterodactylus.util.io.TemporaryInputStream;
import net.pterodactylus.util.thread.ObjectWrapper;
/**
*
* @author David ‘Bombe’ Roden <bombe@freenetproject.org>
*/
-public class FcpClient {
+public class FcpClient implements Closeable {
/** Object used for synchronization. */
private final Object syncObject = new Object();
/** Listener management. */
private final FcpClientListenerManager fcpClientListenerManager = new FcpClientListenerManager(this);
- /** The name of this client. */
- private final String name;
-
/** The underlying FCP connection. */
private final FcpConnection fcpConnection;
+ /** The {@link NodeHello} data sent by the node on connection. */
+ private volatile NodeHello nodeHello;
+
/** Whether the client is currently connected. */
private volatile boolean connected;
+ /** The listener for “connection closed” events. */
+ private FcpListener connectionClosedListener;
+
/**
* Creates an FCP client with the given name.
*
- * @param name
- * The name of the FCP client
* @throws UnknownHostException
* if the hostname “localhost” is unknown
*/
- public FcpClient(String name) throws UnknownHostException {
- this(name, "localhost");
+ public FcpClient() throws UnknownHostException {
+ this("localhost");
}
/**
* Creates an FCP client.
*
- * @param name
- * The name of the FCP client
* @param hostname
* The hostname of the Freenet node
* @throws UnknownHostException
* if the given hostname can not be resolved
*/
- public FcpClient(String name, String hostname) throws UnknownHostException {
- this(name, hostname, FcpConnection.DEFAULT_PORT);
+ public FcpClient(String hostname) throws UnknownHostException {
+ this(hostname, FcpConnection.DEFAULT_PORT);
}
/**
* Creates an FCP client.
*
- * @param name
- * The name of the FCP client
* @param hostname
* The hostname of the Freenet node
* @param port
* @throws UnknownHostException
* if the given hostname can not be resolved
*/
- public FcpClient(String name, String hostname, int port) throws UnknownHostException {
- this(name, InetAddress.getByName(hostname), port);
+ public FcpClient(String hostname, int port) throws UnknownHostException {
+ this(InetAddress.getByName(hostname), port);
}
/**
* Creates an FCP client.
*
- * @param name
- * The name of the FCP client
* @param host
* The host address of the Freenet node
*/
- public FcpClient(String name, InetAddress host) {
- this(name, host, FcpConnection.DEFAULT_PORT);
+ public FcpClient(InetAddress host) {
+ this(host, FcpConnection.DEFAULT_PORT);
}
/**
* Creates an FCP client.
*
- * @param name
- * The name of the FCP client
* @param host
* The host address of the Freenet node
* @param port
* The Freenet node’s FCP port
*/
- public FcpClient(String name, InetAddress host, int port) {
- this.name = name;
- fcpConnection = new FcpConnection(host, port);
- fcpConnection.addFcpListener(new FcpAdapter() {
+ public FcpClient(InetAddress host, int port) {
+ this(new FcpConnection(host, port), false);
+ }
+
+ /**
+ * Creates a new high-level FCP client that will use the given connection.
+ * This constructor will assume that the FCP connection is already
+ * connected.
+ *
+ * @param fcpConnection
+ * The FCP connection to use
+ */
+ public FcpClient(FcpConnection fcpConnection) {
+ this(fcpConnection, true);
+ }
+
+ /**
+ * Creates a new high-level FCP client that will use the given connection.
+ *
+ * @param fcpConnection
+ * The FCP connection to use
+ * @param connected
+ * The initial status of the FCP connection
+ */
+ public FcpClient(FcpConnection fcpConnection, boolean connected) {
+ this.fcpConnection = fcpConnection;
+ this.connected = connected;
+ connectionClosedListener = new FcpAdapter() {
/**
* {@inheritDoc}
@Override
@SuppressWarnings("synthetic-access")
public void connectionClosed(FcpConnection fcpConnection, Throwable throwable) {
- connected = false;
+ FcpClient.this.connected = false;
fcpClientListenerManager.fireFcpClientDisconnected();
}
- });
+ };
+ fcpConnection.addFcpListener(connectionClosedListener);
}
//
}
//
+ // ACCESSORS
+ //
+
+ /**
+ * Returns the {@link NodeHello} object that the node returned when
+ * connecting.
+ *
+ * @return The {@code NodeHello} data container
+ */
+ public NodeHello getNodeHello() {
+ return nodeHello;
+ }
+
+ /**
+ * Returns the underlying FCP connection.
+ *
+ * @return The underlying FCP connection
+ */
+ public FcpConnection getConnection() {
+ return fcpConnection;
+ }
+
+ //
// ACTIONS
//
/**
* Connects the FCP client.
*
+ * @param name
+ * The name of the client
* @throws IOException
* if an I/O error occurs
* @throws FcpException
* if an FCP error occurs
*/
- public void connect() throws IOException, FcpException {
+ public void connect(final String name) throws IOException, FcpException {
checkConnected(false);
connected = true;
new ExtendedFcpAdapter() {
* {@inheritDoc}
*/
@Override
+ @SuppressWarnings("synthetic-access")
public void receivedNodeHello(FcpConnection fcpConnection, NodeHello nodeHello) {
+ FcpClient.this.nodeHello = nodeHello;
+ completionLatch.countDown();
+ }
+ }.execute();
+ }
+
+ /**
+ * Returns the file with the given URI. The retrieved data will be run
+ * through Freenet’s content filter.
+ *
+ * @param uri
+ * The URI to get
+ * @return The result of the get request
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws FcpException
+ * if an FCP error occurs
+ */
+ public GetResult getURI(final String uri) throws IOException, FcpException {
+ return getURI(uri, true);
+ }
+
+ /**
+ * Returns the file with the given URI.
+ *
+ * @param uri
+ * The URI to get
+ * @param filterData
+ * {@code true} to filter the retrieved data, {@code false}
+ * otherwise
+ * @return The result of the get request
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws FcpException
+ * if an FCP error occurs
+ */
+ public GetResult getURI(final String uri, final boolean filterData) throws IOException, FcpException {
+ checkConnected(true);
+ final GetResult getResult = new GetResult();
+ new ExtendedFcpAdapter() {
+
+ @SuppressWarnings("synthetic-access")
+ private final String identifier = createIdentifier("client-get");
+
+ @Override
+ @SuppressWarnings("synthetic-access")
+ public void run() throws IOException {
+ ClientGet clientGet = new ClientGet(uri, identifier);
+ clientGet.setFilterData(filterData);
+ fcpConnection.sendMessage(clientGet);
+ }
+
+ @Override
+ public void receivedGetFailed(FcpConnection fcpConnection, GetFailed getFailed) {
+ if (!getFailed.getIdentifier().equals(identifier)) {
+ return;
+ }
+ if ((getFailed.getCode() == 27) || (getFailed.getCode() == 24)) {
+ /* redirect! */
+ String newUri = getFailed.getRedirectURI();
+ getResult.realUri(newUri);
+ try {
+ ClientGet clientGet = new ClientGet(newUri, identifier);
+ clientGet.setFilterData(filterData);
+ fcpConnection.sendMessage(clientGet);
+ } catch (IOException ioe1) {
+ getResult.success(false).exception(ioe1);
+ completionLatch.countDown();
+ }
+ } else {
+ getResult.success(false).errorCode(getFailed.getCode());
+ completionLatch.countDown();
+ }
+ }
+
+ @Override
+ public void receivedAllData(FcpConnection fcpConnection, AllData allData) {
+ if (!allData.getIdentifier().equals(identifier)) {
+ return;
+ }
+ InputStream temporaryInputStream;
+ try {
+ temporaryInputStream = new TemporaryInputStream(allData.getPayloadInputStream());
+ getResult.success(true).contentType(allData.getContentType()).contentLength(allData.getDataLength()).inputStream(temporaryInputStream);
+ } catch (IOException ioe1) {
+ getResult.success(false).exception(ioe1);
+ }
completionLatch.countDown();
}
+
}.execute();
+ return getResult;
}
/**
}
/**
+ * {@inheritDoc}
+ */
+ @Override
+ public void close() {
+ disconnect();
+ }
+
+ /**
* Returns whether this client is currently connected.
*
* @return {@code true} if the client is currently connected, {@code false}
return connected;
}
+ /**
+ * Detaches this client from its underlying FCP connection.
+ */
+ public void detach() {
+ fcpConnection.removeFcpListener(connectionClosedListener);
+ }
+
//
// PEER MANAGEMENT
//
/**
* {@inheritDoc}
*/
+ @Override
public boolean filterObject(Request request) {
return request instanceof GetRequest;
}
/**
* {@inheritDoc}
*/
+ @Override
public boolean filterObject(Request request) {
return request instanceof PutRequest;
}
projects / jFCPlib.git / blobdiff