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/****************************************************************************
* Copyright (c) 2004 Composent, Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Composent, Inc. - initial API and implementation
*****************************************************************************/
package org.eclipse.ecf.provider.xmpp.identity;
import java.net.URISyntaxException;
import java.util.Hashtable;
import java.util.Iterator;
import org.eclipse.ecf.core.identity.BaseID;
import org.eclipse.ecf.core.identity.Namespace;
import org.eclipse.ecf.core.util.StringUtils;
import org.eclipse.ecf.internal.provider.xmpp.Messages;
import org.eclipse.ecf.presence.IFQID;
import org.eclipse.ecf.presence.im.IChatID;
public class XMPPID extends BaseID implements IChatID, IFQID {
private static final long serialVersionUID = 3257289140701049140L;
public static final char USER_HOST_DELIMITER = '@';
public static final char PORT_DELIMITER = ':';
public static final String PATH_DELIMITER = "/";
static class XMPPEscape {
StringBuffer buf = new StringBuffer();
public XMPPEscape(char[] chars) {
if (chars != null) {
for (int i = 0; i < chars.length; i++) {
buf.append(chars[i]);
}
}
}
public String getAsString() {
return buf.toString();
}
}
protected static Hashtable escapeTable;
static {
escapeTable = new Hashtable(10);
escapeTable.put("@", new XMPPEscape(new char[] { '\\', '4', '0' }));
escapeTable.put("\"", new XMPPEscape(new char[] { '\\', '2', '2' }));
escapeTable.put("&", new XMPPEscape(new char[] { '\\', '2', '6' }));
escapeTable.put("'", new XMPPEscape(new char[] { '\\', '2', '7' }));
escapeTable.put("/", new XMPPEscape(new char[] { '\\', '2', 'f' }));
escapeTable.put(":", new XMPPEscape(new char[] { '\\', '3', 'a' }));
escapeTable.put("<", new XMPPEscape(new char[] { '\\', '3', 'c' }));
escapeTable.put(">", new XMPPEscape(new char[] { '\\', '3', 'e' }));
escapeTable.put("\\", new XMPPEscape(new char[] { '\\', '5', 'c' }));
}
// implements JEP-0106 JID escaping:
// http://www.xmpp.org/extensions/xep-0106.html
static String fixEscapeInNode(String node) {
if (node == null)
return null;
for (final Iterator i = escapeTable.keySet().iterator(); i.hasNext();) {
final String key = (String) i.next();
final XMPPEscape escape = (XMPPEscape) escapeTable.get(key);
node = StringUtils.replaceAll(node, key, escape.getAsString());
}
return node;
}
static String fixPercentEscape(String src) {
if (src == null)
return null;
return StringUtils.replaceAll(src, "%", "%25");
}
public static String unfixEscapeInNode(String node) {
if (node == null)
return null;
for (final Iterator i = escapeTable.keySet().iterator(); i.hasNext();) {
final String key = (String) i.next();
final XMPPEscape escape = (XMPPEscape) escapeTable.get(key);
node = StringUtils.replaceAll(node, escape.getAsString(), key);
}
return node;
}
protected String username;
protected String hostname;
protected String resourcename;
protected int port = -1;
public XMPPID(Namespace namespace, String unamehost)
throws URISyntaxException {
super(namespace);
unamehost = fixPercentEscape(unamehost);
if (unamehost == null)
throw new URISyntaxException(unamehost,
Messages.XMPPID_EXCEPTION_XMPPID_USERNAME_NOT_NULL);
// Handle parsing of user@host/resource string
int atIndex = unamehost.lastIndexOf(USER_HOST_DELIMITER);
if (atIndex == -1)
throw new URISyntaxException(unamehost,
Messages.XMPPID_EXCEPTION_HOST_PORT_NOT_VALID);
username = fixEscapeInNode(unamehost.substring(0, atIndex));
final String remainder = unamehost.substring(atIndex + 1);
// Handle parsing of host:port
atIndex = remainder.lastIndexOf(PORT_DELIMITER);
if (atIndex != -1) {
try {
final int slashLoc = remainder.indexOf(PATH_DELIMITER);
if (slashLoc != -1)
port = Integer.parseInt(remainder.substring(atIndex + 1,
slashLoc));
else
port = Integer.parseInt(remainder.substring(atIndex + 1));
} catch (final NumberFormatException e) {
throw new URISyntaxException(unamehost,
Messages.XMPPID_EXCEPTION_INVALID_PORT);
}
hostname = remainder.substring(0, atIndex);
}
atIndex = remainder.indexOf(PATH_DELIMITER);
if (atIndex != -1) {
if (hostname == null)
hostname = remainder.substring(0, atIndex);
setResourceName(remainder.substring(atIndex + 1));
} else {
setResourceName(null);
}
if (hostname == null)
hostname = remainder;
}
protected int namespaceCompareTo(BaseID o) {
return getName().compareTo(o.getName());
}
protected boolean namespaceEquals(BaseID o) {
if (!(o instanceof XMPPID)) {
return false;
}
final XMPPID other = (XMPPID) o;
// Get resources from this and other
String thisResourceName = getResourceName();
String otherResourceName = other.getResourceName();
// The resources are considered equal if either one is null (not known
// yet), or they are equal by
// string comparison
boolean resourceEquals = false;
if (thisResourceName == null) {
resourceEquals = (otherResourceName == null) ? true : false;
} else {
resourceEquals = thisResourceName.equals(otherResourceName);
}
return resourceEquals
&& getUsernameAtHost().equals(other.getUsernameAtHost());
}
protected String namespaceGetName() {
return getUsernameAtHost();
}
protected int namespaceHashCode() {
return getUsernameAtHost().hashCode();
}
public String getNodename() {
return username;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ecf.core.identity.BaseID#namespaceToExternalForm()
*/
protected String namespaceToExternalForm() {
return getNamespace().getScheme() + "://" + getFQName();
}
public String getUsername() {
return unfixEscapeInNode(username);
}
public String getHostname() {
return hostname;
}
public String getResourceName() {
return resourcename;
}
public void setResourceName(String resourceName) {
this.resourcename = resourceName;
}
public int getPort() {
return port;
}
public String getUsernameAtHost() {
String username = getUsername();
String hostname = getHostname();
int semiColonIdx = hostname.indexOf(';');
if (semiColonIdx != -1) {
hostname = hostname.substring(0, semiColonIdx);
}
return username + USER_HOST_DELIMITER + hostname
+ ((getPort() == -1) ? "" : ":" + getPort());
}
public String getFQName() {
String rn = getResourceName();
return getUsernameAtHost() + PATH_DELIMITER + ((rn == null) ? "" : rn);
}
public String toString() {
final StringBuffer sb = new StringBuffer("XMPPID["); //$NON-NLS-1$
sb.append(toExternalForm()).append("]");
return sb.toString();
}
public Object getAdapter(Class clazz) {
if (clazz.isInstance(this)) {
return this;
} else
return super.getAdapter(clazz);
}
}
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