vanitasvitae/Smack
1
0
Fork 0
mirror of https://github.com/vanitasvitae/Smack.git synced 2024-11-18 10:02:05 +01:00
Code Issues Releases Wiki Activity

File Transfer. (SMACK-72) (SMACK-122)

Browse source 
git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@3396 b35dd754-fafc-0310-a699-88a17e54d16e
This commit is contained in:
Alex Wenckus 2006-02-03 18:46:04 +00:00 committed by alex
parent 8d0db1a339
commit 89202eecd2
1 changed files with 465 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

465
source/org/jivesoftware/smackx/packet/Bytestream.java Normal file
View file

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