X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Ftodesbaum%2Fjsite%2Fapplication%2FFreenet7Interface.java;fp=src%2Fmain%2Fjava%2Fde%2Ftodesbaum%2Fjsite%2Fapplication%2FFreenet7Interface.java;h=78250b21ad7554fd6a7fe8a0e43d91489a4188d7;hb=38bdc433e50669e8244a63b5af59e597f88f1d29;hp=0000000000000000000000000000000000000000;hpb=f14b9fbe6d88e23920b10a75ebeba4d38390301b;p=jSite.git

diff --git a/src/main/java/de/todesbaum/jsite/application/Freenet7Interface.java b/src/main/java/de/todesbaum/jsite/application/Freenet7Interface.java
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+/*
+ * jSite - Freenet7Interface.java - Copyright © 2006–2012 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+package de.todesbaum.jsite.application;
+
+import java.io.IOException;
+
+import de.todesbaum.util.freenet.fcp2.Client;
+import de.todesbaum.util.freenet.fcp2.Connection;
+import de.todesbaum.util.freenet.fcp2.GenerateSSK;
+import de.todesbaum.util.freenet.fcp2.Message;
+import de.todesbaum.util.freenet.fcp2.Node;
+
+/**
+ * Interface for freenet-related operations.
+ *
+ * @author David ‘Bombe’ Roden <bombe@freenetproject.org>
+ */
+public class Freenet7Interface {
+
+	/** Random number to differentiate several jSites. */
+	private static final int number = (int) (Math.random() * Integer.MAX_VALUE);
+
+	/** Counter. */
+	private static int counter = 0;
+
+	/** The node to connect to. */
+	private Node node;
+
+	/** The connection to the node. */
+	private Connection connection;
+
+	/**
+	 * Sets the hostname of the node. The default port for FCP2 connections ({@link Node#DEFAULT_PORT})
+	 * is used.
+	 *
+	 * @param hostname
+	 *            The hostname of the node
+	 */
+	public void setNodeAddress(String hostname) {
+		node = new Node(hostname);
+		connection = new Connection(node, "jSite-" + number + "-connection-" + counter++);
+	}
+
+	/**
+	 * Sets the hostname and the port of the node.
+	 *
+	 * @param hostname
+	 *            The hostname of the node
+	 * @param port
+	 *            The port number of the node
+	 */
+	public void setNodeAddress(String hostname, int port) {
+		node = new Node(hostname, port);
+		connection = new Connection(node, "jSite-" + number + "-connection-" + counter++);
+	}
+
+	/**
+	 * Sets hostname and port from the given node.
+	 *
+	 * @param node
+	 *            The node to get the hostname and port from
+	 */
+	public void setNode(de.todesbaum.jsite.application.Node node) {
+		if (node != null) {
+			this.node = new Node(node.getHostname(), node.getPort());
+			connection = new Connection(node, "jSite-" + number + "-connection-" + counter++);
+		} else {
+			this.node = null;
+			connection = null;
+		}
+	}
+
+	/**
+	 * Removes the current node from the interface.
+	 */
+	public void removeNode() {
+		node = null;
+		connection = null;
+	}
+
+	/**
+	 * Returns the node this interface is connecting to.
+	 *
+	 * @return The node
+	 */
+	public Node getNode() {
+		return node;
+	}
+
+	/**
+	 * Creates a new connection to the current node with the given identifier.
+	 *
+	 * @param identifier
+	 *            The identifier of the connection
+	 * @return The connection to the node
+	 */
+	public Connection getConnection(String identifier) {
+		return new Connection(node, identifier);
+	}
+
+	/**
+	 * Checks whether the current node is connected. If the node is not
+	 * connected, a connection will be tried.
+	 *
+	 * @return <code>true</code> if the node is connected, <code>false</code>
+	 *         otherwise
+	 * @throws IOException
+	 *             if an I/O error occurs communicating with the node
+	 */
+	public boolean isNodePresent() throws IOException {
+		if (!connection.isConnected()) {
+			return connection.connect();
+		}
+		return true;
+	}
+
+	/**
+	 * Generates an SSK key pair.
+	 *
+	 * @return An array of strings, the first one being the generated private
+	 *         (insert) URI and the second one being the generated public
+	 *         (request) URI
+	 * @throws IOException
+	 *             if an I/O error occurs communicating with the node
+	 */
+	public String[] generateKeyPair() throws IOException {
+		if (!isNodePresent()) {
+			throw new IOException("Node is offline.");
+		}
+		GenerateSSK generateSSK = new GenerateSSK();
+		Client client = new Client(connection, generateSSK);
+		Message keypairMessage = client.readMessage();
+		return new String[] { keypairMessage.get("InsertURI"), keypairMessage.get("RequestURI") };
+	}
+
+	/**
+	 * Checks whether the interface has already been configured with a node.
+	 *
+	 * @return <code>true</code> if this interface already has a node set,
+	 *         <code>false</code> otherwise
+	 */
+	public boolean hasNode() {
+		return (node != null) && (connection != null);
+	}
+
+}