}
@Override
public IQ handleIQ(IQ packet) throws PacketException, UnauthorizedException {
ClientSession session = sessionManager.getSession(packet.getFrom());
IQ reply = null;
// If no session was found then answer an error (if possible)
if (session == null) {
Log.error("Error during registration. Session not found in " +
sessionManager.getPreAuthenticatedKeys() +
" for key " +
packet.getFrom());
// This error packet will probably won't make it through
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.internal_server_error);
return reply;
}
if (IQ.Type.get.equals(packet.getType())) {
// If inband registration is not allowed, return an error.
if (!registrationEnabled) {
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.forbidden);
}
else {
reply = IQ.createResultIQ(packet);
if (session.getStatus() == Session.STATUS_AUTHENTICATED) {
try {
User user = userManager.getUser(session.getUsername());
Element currentRegistration = probeResult.createCopy();
currentRegistration.addElement("registered");
currentRegistration.element("username").setText(user.getUsername());
currentRegistration.element("password").setText("");
currentRegistration.element("email")
.setText(user.getEmail() == null ? "" : user.getEmail());
currentRegistration.element("name").setText(user.getName());
Element form = currentRegistration.element(QName.get("x", "jabber:x:data"));
Iterator fields = form.elementIterator("field");
Element field;
while (fields.hasNext()) {
field = (Element) fields.next();
if ("username".equals(field.attributeValue("var"))) {
field.addElement("value").addText(user.getUsername());
}
else if ("name".equals(field.attributeValue("var"))) {
field.addElement("value").addText(user.getName());
}
else if ("email".equals(field.attributeValue("var"))) {
field.addElement("value")
.addText(user.getEmail() == null ? "" : user.getEmail());
}
}
reply.setChildElement(currentRegistration);
}
catch (UserNotFoundException e) {
reply.setChildElement(probeResult.createCopy());
}
}
else {
// This is a workaround. Since we don't want to have an incorrect TO attribute
// value we need to clean up the TO attribute. The TO attribute will contain an
// incorrect value since we are setting a fake JID until the user actually
// authenticates with the server.
reply.setTo((JID) null);
reply.setChildElement(probeResult.createCopy());
}
}
}
else if (IQ.Type.set.equals(packet.getType())) {
try {
Element iqElement = packet.getChildElement();
if (iqElement.element("remove") != null) {
// If inband registration is not allowed, return an error.
if (!registrationEnabled) {
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.forbidden);
}
else {
if (session.getStatus() == Session.STATUS_AUTHENTICATED) {
User user = userManager.getUser(session.getUsername());
// Delete the user
userManager.deleteUser(user);
// Delete the roster of the user
rosterManager.deleteRoster(session.getAddress());
// Delete the user from all the Groups
GroupManager.getInstance().deleteUser(user);
reply = IQ.createResultIQ(packet);
session.process(reply);
// Take a quick nap so that the client can process the result
Thread.sleep(10);
// Close the user's connection
final StreamError error = new StreamError(StreamError.Condition.not_authorized);
for (ClientSession sess : sessionManager.getSessions(user.getUsername()) )
{
sess.deliverRawText(error.toXML());
sess.close();
}
// The reply has been sent so clean up the variable
reply = null;
}
else {
throw new UnauthorizedException();
}
}
}
else {
String username;
String password = null;
String email = null;
String name = null;
User newUser;
DataForm registrationForm;
FormField field;
Element formElement = iqElement.element("x");
// Check if a form was used to provide the registration info
if (formElement != null) {
// Get the sent form
registrationForm = new DataForm(formElement);
// Get the username sent in the form
List<String> values = registrationForm.getField("username").getValues();
username = (!values.isEmpty() ? values.get(0) : " ");
// Get the password sent in the form
field = registrationForm.getField("password");
if (field != null) {
values = field.getValues();
password = (!values.isEmpty() ? values.get(0) : " ");
}
// Get the email sent in the form
field = registrationForm.getField("email");
if (field != null) {
values = field.getValues();
email = (!values.isEmpty() ? values.get(0) : " ");
}
// Get the name sent in the form
field = registrationForm.getField("name");
if (field != null) {
values = field.getValues();
name = (!values.isEmpty() ? values.get(0) : " ");
}
}
else {
// Get the registration info from the query elements
username = iqElement.elementText("username");
password = iqElement.elementText("password");
email = iqElement.elementText("email");
name = iqElement.elementText("name");
}
if (email != null && email.matches("\\s*")) {
email = null;
}
if (name != null && name.matches("\\s*")) {
name = null;
}
// So that we can set a more informative error message back, lets test this for
// stringprep validity now.
if (username != null) {
Stringprep.nodeprep(username);
}
if (session.getStatus() == Session.STATUS_AUTHENTICATED) {
// Flag that indicates if the user is *only* changing his password
boolean onlyPassword = false;
if (iqElement.elements().size() == 2 &&
iqElement.element("username") != null &&
iqElement.element("password") != null) {
onlyPassword = true;
}
// If users are not allowed to change their password, return an error.
if (password != null && !canChangePassword) {
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.forbidden);
return reply;
}
// If inband registration is not allowed, return an error.
else if (!onlyPassword && !registrationEnabled) {
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.forbidden);
return reply;
}
else {
User user = userManager.getUser(session.getUsername());
if (user.getUsername().equalsIgnoreCase(username)) {
if (password != null && password.trim().length() > 0) {
user.setPassword(password);
}
if (!onlyPassword) {
user.setEmail(email);
}
newUser = user;
}
else if (password != null && password.trim().length() > 0) {
// An admin can create new accounts when logged in.
newUser = userManager.createUser(username, password, null, email);
}
else {
// Deny registration of users with no password
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.not_acceptable);
return reply;
}
}
}
else {
// If inband registration is not allowed, return an error.
if (!registrationEnabled) {
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.forbidden);
return reply;
}
// Inform the entity of failed registration if some required
// information was not provided
else if (password == null || password.trim().length() == 0) {
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.not_acceptable);
return reply;
}
else {
// Create the new account
newUser = userManager.createUser(username, password, name, email);
}
}
// Set and save the extra user info (e.g. full name, etc.)
if (newUser != null && name != null && !name.equals(newUser.getName())) {
newUser.setName(name);
}
reply = IQ.createResultIQ(packet);
}
}
catch (UserAlreadyExistsException e) {
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.conflict);
}
catch (UserNotFoundException e) {
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.bad_request);
}
catch (StringprepException e) {
// The specified username is not correct according to the stringprep specs
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.jid_malformed);
}
catch (IllegalArgumentException e) {
// At least one of the fields passed in is not valid
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.not_acceptable);
Log.warn(e.getMessage(), e);
}
catch (UnsupportedOperationException e) {
// The User provider is read-only so this operation is not allowed
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.not_allowed);
}
catch (Exception e) {
// Some unexpected error happened so return an internal_server_error
reply = IQ.createResultIQ(packet);
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.internal_server_error);
Log.error(e.getMessage(), e);
}
}
if (reply != null) {
// why is this done here instead of letting the iq handler do it?