From 063284837c8c366e5502b1b0264b8eb807b61732 Mon Sep 17 00:00:00 2001 From: Joe Robinson Date: Wed, 27 Oct 2010 14:21:09 +0100 Subject: Basic upload functionality to predifined location, with basic file browser --- .../commons/net/chargen/CharGenTCPClient.java | 86 ++++++++++++++ .../commons/net/chargen/CharGenUDPClient.java | 129 +++++++++++++++++++++ 2 files changed, 215 insertions(+) create mode 100644 org/apache/commons/net/chargen/CharGenTCPClient.java create mode 100644 org/apache/commons/net/chargen/CharGenUDPClient.java (limited to 'org/apache/commons/net/chargen') diff --git a/org/apache/commons/net/chargen/CharGenTCPClient.java b/org/apache/commons/net/chargen/CharGenTCPClient.java new file mode 100644 index 0000000..a023e58 --- /dev/null +++ b/org/apache/commons/net/chargen/CharGenTCPClient.java @@ -0,0 +1,86 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.commons.net.chargen; + +import java.io.InputStream; + +import org.apache.commons.net.SocketClient; + +/*** + * The CharGenTCPClient class is a TCP implementation of a client for the + * character generator protocol described in RFC 864. It can also be + * used for Systat (RFC 866), Quote of the Day (RFC 865), and netstat + * (port 15). All of these protocols involve connecting to the appropriate + * port, and reading data from an input stream. The chargen protocol + * actually sends data until the receiving end closes the connection. All + * of the others send only a fixed amount of data and then close the + * connection. + *

+ * To use the CharGenTCPClient class, just establish a + * connection with + * {@link org.apache.commons.net.SocketClient#connect connect } + * and call {@link #getInputStream getInputStream() } to access + * the data. Don't close the input stream when you're done with it. Rather, + * call {@link org.apache.commons.net.SocketClient#disconnect disconnect } + * to clean up properly. + *

+ *

+ * @author Daniel F. Savarese + * @see CharGenUDPClient + ***/ + +public final class CharGenTCPClient extends SocketClient +{ + /*** The systat port value of 11 according to RFC 866. ***/ + public static final int SYSTAT_PORT = 11; + /*** The netstat port value of 19. ***/ + public static final int NETSTAT_PORT = 15; + /*** The quote of the day port value of 17 according to RFC 865. ***/ + public static final int QUOTE_OF_DAY_PORT = 17; + /*** The character generator port value of 19 according to RFC 864. ***/ + public static final int CHARGEN_PORT = 19; + /*** The default chargen port. It is set to 19 according to RFC 864. ***/ + public static final int DEFAULT_PORT = 19; + + /*** + * The default constructor for CharGenTCPClient. It merely sets the + * default port to DEFAULT_PORT . + ***/ + public CharGenTCPClient () + { + setDefaultPort(DEFAULT_PORT); + } + + /*** + * Returns an InputStream from which the server generated data can be + * read. You should NOT close the InputStream when you're finished + * reading from it. Rather, you should call + * {@link org.apache.commons.net.SocketClient#disconnect disconnect } + * to clean up properly. + *

+ * @return An InputStream from which the server generated data can be read. + ***/ + public InputStream getInputStream() + { + return _input_; + } +} + + + + diff --git a/org/apache/commons/net/chargen/CharGenUDPClient.java b/org/apache/commons/net/chargen/CharGenUDPClient.java new file mode 100644 index 0000000..f9a349a --- /dev/null +++ b/org/apache/commons/net/chargen/CharGenUDPClient.java @@ -0,0 +1,129 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.commons.net.chargen; + +import java.io.IOException; +import java.net.DatagramPacket; +import java.net.InetAddress; + +import org.apache.commons.net.DatagramSocketClient; + +/*** + * The CharGenUDPClient class is a UDP implementation of a client for the + * character generator protocol described in RFC 864. It can also be + * used for Systat (RFC 866), Quote of the Day (RFC 865), and netstat + * (port 15). All of these protocols involve sending a datagram to the + * appropriate port, and reading data contained in one or more reply + * datagrams. The chargen and quote of the day protocols only send + * one reply datagram containing 512 bytes or less of data. The other + * protocols may reply with more than one datagram, in which case you + * must wait for a timeout to determine that all reply datagrams have + * been sent. + *

+ * To use the CharGenUDPClient class, just open a local UDP port + * with {@link org.apache.commons.net.DatagramSocketClient#open open } + * and call {@link #send send } to send the datagram that will + * initiate the data reply. For chargen or quote of the day, just + * call {@link #receive receive }, and you're done. For netstat and + * systat, call receive in a while loop, and catch a SocketException and + * InterruptedIOException to detect a timeout (don't forget to set the + * timeout duration beforehand). Don't forget to call + * {@link org.apache.commons.net.DatagramSocketClient#close close() } + * to clean up properly. + *

+ *

+ * @author Daniel F. Savarese + * @see CharGenTCPClient + ***/ + +public final class CharGenUDPClient extends DatagramSocketClient +{ + /*** The systat port value of 11 according to RFC 866. ***/ + public static final int SYSTAT_PORT = 11; + /*** The netstat port value of 19. ***/ + public static final int NETSTAT_PORT = 15; + /*** The quote of the day port value of 17 according to RFC 865. ***/ + public static final int QUOTE_OF_DAY_PORT = 17; + /*** The character generator port value of 19 according to RFC 864. ***/ + public static final int CHARGEN_PORT = 19; + /*** The default chargen port. It is set to 19 according to RFC 864. ***/ + public static final int DEFAULT_PORT = 19; + + private byte[] __receiveData; + private DatagramPacket __receivePacket; + private DatagramPacket __sendPacket; + + /*** + * The default CharGenUDPClient constructor. It initializes some internal + * data structures for sending and receiving the necessary datagrams for + * the chargen and related protocols. + ***/ + public CharGenUDPClient() + { + // CharGen return packets have a maximum length of 512 + __receiveData = new byte[512]; + __receivePacket = new DatagramPacket(__receiveData, 512); + __sendPacket = new DatagramPacket(new byte[0], 0); + } + + + /*** + * Sends the data initiation datagram. This data in the packet is ignored + * by the server, and merely serves to signal that the server should send + * its reply. + *

+ * @param host The address of the server. + * @param port The port of the service. + * @exception IOException If an error occurs while sending the datagram. + ***/ + public void send(InetAddress host, int port) throws IOException + { + __sendPacket.setAddress(host); + __sendPacket.setPort(port); + _socket_.send(__sendPacket); + } + + /*** Same as send(host, CharGenUDPClient.DEFAULT_PORT); ***/ + public void send(InetAddress host) throws IOException + { + send(host, DEFAULT_PORT); + } + + /*** + * Receive the reply data from the server. This will always be 512 bytes + * or less. Chargen and quote of the day only return one packet. Netstat + * and systat require multiple calls to receive() with timeout detection. + *

+ * @return The reply data from the server. + * @exception IOException If an error occurs while receiving the datagram. + ***/ + public byte[] receive() throws IOException + { + int length; + byte[] result; + + _socket_.receive(__receivePacket); + + result = new byte[length = __receivePacket.getLength()]; + System.arraycopy(__receiveData, 0, result, 0, length); + + return result; + } + +} + -- cgit v1.2.3