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File Transfer. (SMACK-72) (SMACK-122)
git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@3396 b35dd754-fafc-0310-a699-88a17e54d16e
This commit is contained in:
Alex Wenckus
alex
parent
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commit
89202eecd2
1 changed files with 465 additions and 0 deletions
465
source/org/jivesoftware/smackx/packet/Bytestream.java
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465
source/org/jivesoftware/smackx/packet/Bytestream.java
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/*
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* Created on Jun 21, 2005
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*/
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package org.jivesoftware.smackx.packet;
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import org.jivesoftware.smack.packet.IQ;
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import org.jivesoftware.smack.packet.PacketExtension;
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import java.util.*;
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/**
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* A packet representing part of a Socks5 Bytestream negotiation.
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*
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* @author Alexander Wenckus
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*/
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public class Bytestream extends IQ {
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private String sessionID;
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private Mode mode = Mode.TCP;
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private final List streamHosts = new ArrayList();
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private StreamHostUsed usedHost;
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private Activate toActivate;
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/**
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* The default constructor
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*/
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public Bytestream() {
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super();
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}
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/**
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* A constructor where the session ID can be specified.
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*
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* @param SID The session ID related to the negotiation.
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* @see #setSessionID(String)
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*/
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public Bytestream(final String SID) {
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super();
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setSessionID(SID);
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}
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/**
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* Set the session ID related to the Byte Stream. The session ID is a unique
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* identifier used to differentiate between stream negotations.
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*
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* @param sessionID
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*/
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public void setSessionID(final String sessionID) {
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this.sessionID = sessionID;
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}
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/**
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* Returns the session ID related to the Byte Stream negotiation.
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*
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* @return Returns the session ID related to the Byte Stream negotiation.
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* @see #setSessionID(String)
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*/
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public String getSessionID() {
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return sessionID;
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}
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/**
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* Set the transport mode. This should be put in the initiation of the
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* interaction.
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*
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* @param mode
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* @see Mode
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*/
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public void setMode(final Mode mode) {
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this.mode = mode;
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}
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/**
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* Returns the transport mode.
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*
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* @return Returns the transport mode.
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* @see #setMode(Mode)
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*/
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public Mode getMode() {
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return mode;
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}
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/**
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* Adds a potential stream host that the remote user can connect to to
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* receive the file.
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*
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* @param JID The jabber ID of the stream host.
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* @param address The internet address of the stream host.
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* @return The added stream host.
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*/
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public StreamHost addStreamHost(final String JID, final String address) {
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return addStreamHost(JID, address, 0);
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}
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/**
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* Adds a potential stream host that the remote user can connect to to
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* receive the file.
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*
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* @param JID The jabber ID of the stream host.
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* @param address The internet address of the stream host.
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* @param port The port on which the remote host is seeking connections.
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* @return The added stream host.
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*/
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public StreamHost addStreamHost(final String JID, final String address,
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final int port) {
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StreamHost host = new StreamHost(JID, address);
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host.setPort(port);
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addStreamHost(host);
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return host;
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}
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/**
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* Adds a potential stream host that the remote user can transfer the file
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* through.
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*
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* @param host The potential stream host.
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*/
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public void addStreamHost(final StreamHost host) {
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streamHosts.add(host);
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}
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/**
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* Returns the list of stream hosts contained in the packet.
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*
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* @return Returns the list of stream hosts contained in the packet.
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*/
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public Collection getStreamHosts() {
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return Collections.unmodifiableCollection(streamHosts);
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}
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/**
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* Returns the stream host related to the given jabber ID, or null if there
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* is none.
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*
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* @param JID The jabber ID of the desired stream host.
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* @return Returns the stream host related to the given jabber ID, or null
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* if there is none.
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*/
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public StreamHost getStreamHost(final String JID) {
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StreamHost host;
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for (Iterator it = streamHosts.iterator(); it.hasNext();) {
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host = (StreamHost) it.next();
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if (host.getJID().equals(JID)) {
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return host;
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}
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}
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return null;
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}
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/**
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* Returns the count of stream hosts contained in this packet.
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*
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* @return Returns the count of stream hosts contained in this packet.
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*/
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public int countStreamHosts() {
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return streamHosts.size();
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}
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/**
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* Upon connecting to the stream host the target of the stream replys to the
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* initiator with the jabber id of the Socks5 host that they used.
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*
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* @param JID The jabber ID of the used host.
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*/
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public void setUsedHost(final String JID) {
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this.usedHost = new StreamHostUsed(JID);
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}
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/**
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* Returns the Socks5 host connected to by the remote user.
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*
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* @return Returns the Socks5 host connected to by the remote user.
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*/
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public StreamHostUsed getUsedHost() {
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return usedHost;
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}
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/**
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* Returns the activate element of the packet sent to the proxy host to
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* verify the identity of the initiator and match them to the appropriate
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* stream.
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*
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* @return Returns the activate element of the packet sent to the proxy host
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* to verify the identity of the initiator and match them to the
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* appropriate stream.
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*/
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public Activate getToActivate() {
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return toActivate;
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}
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/**
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* Upon the response from the target of the used host the activate packet is
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* sent to the Socks5 proxy. The proxy will activate the stream or return an
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* error after verifying the identity of the initiator, using the activate
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* packet.
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*
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* @param targetID The jabber ID of the target of the file transfer.
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*/
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public void setToActivate(final String targetID) {
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this.toActivate = new Activate(targetID);
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}
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public String getChildElementXML() {
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StringBuffer buf = new StringBuffer();
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buf.append("<query xmlns=\"http://jabber.org/protocol/bytestreams\"");
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if (this.getType().equals(IQ.Type.SET)) {
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if (getSessionID() != null)
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buf.append(" sid=\"").append(getSessionID()).append("\"");
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if (getMode() != null)
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buf.append(" mode = \"").append(getMode()).append("\"");
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buf.append(">");
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if (getToActivate() == null) {
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for (Iterator it = getStreamHosts().iterator(); it.hasNext();)
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buf.append(((StreamHost) it.next()).toXML());
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}
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else {
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buf.append(getToActivate().toXML());
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}
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}
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else if (this.getType().equals(IQ.Type.RESULT)) {
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buf.append(">");
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if (getUsedHost() != null)
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buf.append(getUsedHost().toXML());
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}
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else {
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return null;
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}
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buf.append("</query>");
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return buf.toString();
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}
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/**
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* Packet extension that represents a potential Socks5 proxy for the file
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* transfer. Stream hosts are forwared to the target of the file transfer
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* who then chooses and connects to one.
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*
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* @author Alexander Wenckus
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*/
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public static class StreamHost implements PacketExtension {
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public static String NAMESPACE = "";
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public static String ELEMENTNAME = "streamhost";
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private final String JID;
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private final String addy;
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private int port = 0;
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/**
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* Default constructor.
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*
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* @param JID The jabber ID of the stream host.
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* @param address The internet address of the stream host.
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*/
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public StreamHost(final String JID, final String address) {
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this.JID = JID;
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this.addy = address;
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}
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/**
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* Returns the jabber ID of the stream host.
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*
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* @return Returns the jabber ID of the stream host.
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*/
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public String getJID() {
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return JID;
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}
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/**
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* Returns the internet address of the stream host.
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*
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* @return Returns the internet address of the stream host.
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*/
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public String getAddress() {
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return addy;
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}
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/**
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* Sets the port of the stream host.
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*
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* @param port The port on which the potential stream host would accept
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* the connection.
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*/
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public void setPort(final int port) {
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this.port = port;
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}
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/**
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* Returns the port on which the potential stream host would accept the
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* connection.
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*
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* @return Returns the port on which the potential stream host would
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* accept the connection.
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*/
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public int getPort() {
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return port;
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}
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public String getNamespace() {
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return NAMESPACE;
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}
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public String getElementName() {
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return ELEMENTNAME;
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}
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public String toXML() {
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StringBuffer buf = new StringBuffer();
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buf.append("<").append(getElementName()).append(" ");
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buf.append("jid=\"").append(getJID()).append("\" ");
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buf.append("host=\"").append(getAddress()).append("\" ");
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if (getPort() != 0)
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buf.append("port=\"").append(getPort()).append("\"");
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else
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buf.append("zeroconf=\"_jabber.bytestreams\"");
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buf.append("/>");
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return buf.toString();
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}
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}
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/**
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* After selected a Socks5 stream host and successfully connecting, the
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* target of the file transfer returns a byte stream packet with the stream
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* host used extension.
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*
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* @author Alexander Wenckus
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*/
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public static class StreamHostUsed implements PacketExtension {
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public String NAMESPACE = "";
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public static String ELEMENTNAME = "streamhost-used";
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private final String JID;
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/**
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* Default constructor.
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*
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* @param JID The jabber ID of the selected stream host.
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*/
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public StreamHostUsed(final String JID) {
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this.JID = JID;
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}
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/**
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* Returns the jabber ID of the selected stream host.
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*
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* @return Returns the jabber ID of the selected stream host.
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*/
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public String getJID() {
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return JID;
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}
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public String getNamespace() {
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return NAMESPACE;
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}
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public String getElementName() {
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return ELEMENTNAME;
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}
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public String toXML() {
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StringBuffer buf = new StringBuffer();
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buf.append("<").append(getElementName()).append(" ");
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buf.append("jid=\"").append(getJID()).append("\" ");
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buf.append("/>");
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return buf.toString();
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}
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}
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/**
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* The packet sent by the stream initiator to the stream proxy to activate
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* the connection.
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*
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* @author Alexander Wenckus
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*/
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public static class Activate implements PacketExtension {
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public String NAMESPACE = "";
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public static String ELEMENTNAME = "activate";
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private final String target;
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/**
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* Default constructor specifying the target of the stream.
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*
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* @param target The target of the stream.
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*/
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public Activate(final String target) {
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this.target = target;
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}
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/**
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* Returns the target of the activation.
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*
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* @return Returns the target of the activation.
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*/
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public String getTarget() {
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return target;
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}
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public String getNamespace() {
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return NAMESPACE;
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}
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public String getElementName() {
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return ELEMENTNAME;
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}
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public String toXML() {
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StringBuffer buf = new StringBuffer();
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buf.append("<").append(getElementName()).append(">");
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buf.append(getTarget());
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buf.append("</").append(getElementName()).append(">");
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return buf.toString();
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}
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}
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/**
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* The stream can be either a TCP stream or a UDP stream.
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*
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* @author Alexander Wenckus
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*/
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public static class Mode {
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/**
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* A TCP based stream.
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*/
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public static Mode TCP = new Mode("tcp");
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/**
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* A UDP based stream.
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*/
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public static Mode UDP = new Mode("udp");
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private final String modeString;
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private Mode(final String mode) {
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this.modeString = mode;
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}
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public String toString() {
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return modeString;
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}
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public boolean equals(final Object obj) {
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if (!(obj instanceof Mode))
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return false;
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return modeString.equals(((Mode) obj).modeString);
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}
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}
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}
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