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/**
*
* Copyright 2014-2020 Florian Schmaus
*
* Licensed 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.jivesoftware.smack;
import java.security.cert.CertificateException;
import java.util.Collections;
import java.util.List;
import org.jivesoftware.smack.c2s.XmppClientToServerTransport.LookupConnectionEndpointsFailed;
import org.jivesoftware.smack.filter.StanzaFilter;
import org.jivesoftware.smack.util.StringUtils;
import org.jivesoftware.smack.util.rce.RemoteConnectionEndpoint;
import org.jivesoftware.smack.util.rce.RemoteConnectionEndpointLookupFailure;
import org.jivesoftware.smack.util.rce.RemoteConnectionException;
import org.jxmpp.jid.Jid;
/**
* Smack uses SmackExceptions for errors that are not defined by any XMPP specification.
*
* @author Florian Schmaus
*/
public abstract class SmackException extends Exception {
/**
*
*/
private static final long serialVersionUID = 1844674365368214458L;
/**
* Creates a new SmackException with the Throwable that was the root cause of the exception.
*
* @param wrappedThrowable the root cause of the exception.
*/
protected SmackException(Throwable wrappedThrowable) {
super(wrappedThrowable);
}
protected SmackException(String message) {
super(message);
}
protected SmackException(String message, Throwable wrappedThrowable) {
super(message, wrappedThrowable);
}
protected SmackException() {
}
/**
* Exception thrown always when there was no response to an request within the stanza reply timeout of the used
* connection instance. You can modify (e.g. increase) the stanza reply timeout with
* {@link XMPPConnection#setReplyTimeout(long)}.
*/
public static final class NoResponseException extends SmackException {
/**
*
*/
private static final long serialVersionUID = -6523363748984543636L;
private final StanzaFilter filter;
private NoResponseException(String message) {
this(message, null);
}
private NoResponseException(String message, StanzaFilter filter) {
super(message);
this.filter = filter;
}
/**
* Get the filter that was used to collect the response.
*
* @return the used filter or null.
*/
public StanzaFilter getFilter() {
return filter;
}
public static NoResponseException newWith(XMPPConnection connection, String waitingFor) {
final StringBuilder sb = getWaitingFor(connection);
sb.append(" While waiting for ").append(waitingFor);
sb.append(" [").append(connection).append(']');
return new NoResponseException(sb.toString());
}
public static NoResponseException newWith(long timeout,
StanzaCollector collector, boolean stanzaCollectorCancelled) {
return newWith(timeout, collector.getStanzaFilter(), stanzaCollectorCancelled);
}
public static NoResponseException newWith(XMPPConnection connection, StanzaFilter filter) {
return newWith(connection.getReplyTimeout(), filter, false);
}
public static NoResponseException newWith(long timeout, StanzaFilter filter, boolean stanzaCollectorCancelled) {
final StringBuilder sb = getWaitingFor(timeout);
if (stanzaCollectorCancelled) {
sb.append(" StanzaCollector has been cancelled.");
}
sb.append(" Waited for response using: ");
if (filter != null) {
sb.append(filter.toString());
}
else {
sb.append("No filter used or filter was 'null'");
}
sb.append('.');
return new NoResponseException(sb.toString(), filter);
}
private static StringBuilder getWaitingFor(XMPPConnection connection) {
return getWaitingFor(connection.getReplyTimeout());
}
private static StringBuilder getWaitingFor(final long replyTimeout) {
final StringBuilder sb = new StringBuilder(256);
sb.append("No response received within reply timeout. Timeout was "
+ replyTimeout + "ms (~"
+ replyTimeout / 1000 + "s).");
return sb;
}
}
public static class NotLoggedInException extends SmackException {
/**
*
*/
private static final long serialVersionUID = 3216216839100019278L;
public NotLoggedInException() {
super("Client is not logged in");
}
}
public static class AlreadyLoggedInException extends SmackException {
/**
*
*/
private static final long serialVersionUID = 5011416918049935231L;
public AlreadyLoggedInException() {
super("Client is already logged in");
}
}
public static class AlreadyConnectedException extends SmackException {
/**
*
*/
private static final long serialVersionUID = 5011416918049135231L;
public AlreadyConnectedException() {
super("Client is already connected");
}
}
public static class NotConnectedException extends SmackException {
/**
*
*/
private static final long serialVersionUID = 9197980400776001173L;
public NotConnectedException() {
this(null);
}
public NotConnectedException(String optionalHint) {
super("Client is not, or no longer, connected."
+ (optionalHint != null ? ' ' + optionalHint : ""));
}
public NotConnectedException(XMPPConnection connection, String details) {
super("The connection " + connection.toString() + " is no longer connected. "
+ details);
}
public NotConnectedException(XMPPConnection connection, StanzaFilter stanzaFilter) {
super("The connection " + connection
+ " is no longer connected while waiting for response with " + stanzaFilter);
}
public NotConnectedException(XMPPConnection connection, StanzaFilter stanzaFilter,
Exception connectionException) {
super("The connection " + connection + " is no longer connected while waiting for response with "
+ stanzaFilter + " because of " + connectionException, connectionException);
}
}
public static class IllegalStateChangeException extends SmackException {
/**
*
*/
private static final long serialVersionUID = -1766023961577168927L;
public IllegalStateChangeException() {
}
}
public abstract static class SecurityRequiredException extends SmackException {
/**
*
*/
private static final long serialVersionUID = 384291845029773545L;
public SecurityRequiredException(String message) {
super(message);
}
}
public static class SecurityRequiredByClientException extends SecurityRequiredException {
/**
*
*/
private static final long serialVersionUID = 2395325821201543159L;
public SecurityRequiredByClientException() {
super("SSL/TLS required by client but not supported by server");
}
}
public static class SecurityRequiredByServerException extends SecurityRequiredException {
/**
*
*/
private static final long serialVersionUID = 8268148813117631819L;
public SecurityRequiredByServerException() {
super("SSL/TLS required by server but disabled in client");
}
}
public static class SecurityNotPossibleException extends SmackException {
/**
*
*/
private static final long serialVersionUID = -6836090872690331336L;
public SecurityNotPossibleException(String message) {
super(message);
}
}
public abstract static class ConnectionException extends SmackException {
private static final long serialVersionUID = 1L;
protected ConnectionException(Throwable wrappedThrowable) {
super(wrappedThrowable);
}
protected ConnectionException(String message) {
super(message);
}
}
public static final class GenericConnectionException extends ConnectionException {
private static final long serialVersionUID = 1L;
/**
* Deprecated, do not use.
*
* @param wrappedThrowable the wrapped throwable.
*/
@Deprecated
public GenericConnectionException(Throwable wrappedThrowable) {
super(wrappedThrowable);
}
}
/**
* This exception is thrown if Smack is unable to connect to all hosts of a given XMPP
* service. The connection exceptions can be retrieved with
* {@link EndpointConnectionException#getConnectionExceptions()}, which will have the exception causing the
* connection failure set and retrievable with {@link RemoteConnectionException#getException()}.
*/
public static final class EndpointConnectionException extends ConnectionException {
/**
*
*/
private static final long serialVersionUID = 1;
private final List lookupFailures;
private final List> connectionExceptions;
private EndpointConnectionException(String message, List lookupFailures,
List> connectionExceptions) {
super(message);
// At least one list must contain an entry.
assert !lookupFailures.isEmpty() || !connectionExceptions.isEmpty();
this.lookupFailures = lookupFailures;
this.connectionExceptions = connectionExceptions;
}
public static EndpointConnectionException from(List lookupFailures,
List> connectionExceptions) {
StringBuilder sb = new StringBuilder(256);
if (!lookupFailures.isEmpty()) {
sb.append("Could not lookup the following endpoints: ");
StringUtils.appendTo(lookupFailures, sb);
}
if (!connectionExceptions.isEmpty()) {
sb.append("The following addresses failed: ");
StringUtils.appendTo(connectionExceptions, sb, rce -> sb.append(rce.getErrorMessage()));
}
return new EndpointConnectionException(sb.toString(), lookupFailures, connectionExceptions);
}
public List getLookupFailures() {
return lookupFailures;
}
public List> getConnectionExceptions() {
return connectionExceptions;
}
}
public static final class NoEndpointsDiscoveredException extends ConnectionException {
private static final long serialVersionUID = 1L;
private final List lookupFailures;
private NoEndpointsDiscoveredException(String message, List lookupFailures) {
super(message);
this.lookupFailures = Collections.unmodifiableList(lookupFailures);
}
public List getLookupFailures() {
return lookupFailures;
}
public static NoEndpointsDiscoveredException from(List lookupFailures) {
StringBuilder sb = new StringBuilder();
if (lookupFailures.isEmpty()) {
sb.append("No endpoint lookup finished within the timeout");
} else {
sb.append("No endpoints could be discovered due the following lookup failures: ");
StringUtils.appendTo(lookupFailures, sb);
}
return new NoEndpointsDiscoveredException(sb.toString(), lookupFailures);
}
}
public static class FeatureNotSupportedException extends SmackException {
/**
*
*/
private static final long serialVersionUID = 4713404802621452016L;
private final String feature;
private final Jid jid;
public FeatureNotSupportedException(String feature) {
this(feature, null);
}
public FeatureNotSupportedException(String feature, Jid jid) {
super(feature + " not supported" + (jid == null ? "" : " by '" + jid + "'"));
this.jid = jid;
this.feature = feature;
}
/**
* Get the feature which is not supported.
*
* @return the feature which is not supported
*/
public String getFeature() {
return feature;
}
/**
* Get JID which does not support the feature. The JID can be null in cases when there are
* multiple JIDs queried for this feature.
*
* @return the JID which does not support the feature, or null
*/
public Jid getJid() {
return jid;
}
}
public static class ResourceBindingNotOfferedException extends SmackException {
/**
*
*/
private static final long serialVersionUID = 2346934138253437571L;
public ResourceBindingNotOfferedException() {
super("Resource binding was not offered by server");
}
}
/**
* A Smack exception wrapping another exception. Note that usage of this class is consider bad practice. This class
* will eventually be marked deprecated and removed.
*/
public static class SmackWrappedException extends SmackException {
/**
*
*/
private static final long serialVersionUID = 1L;
public SmackWrappedException(Exception exception) {
super(exception);
}
public SmackWrappedException(String message, Exception exception) {
super(message, exception);
}
}
/**
* A Smack exception wrapping a text message. Note that usage of this class is consider bad practice. This class
* will eventually be marked deprecated and removed.
*/
public static class SmackMessageException extends SmackException {
/**
*
*/
private static final long serialVersionUID = 1L;
public SmackMessageException(String message) {
super(message);
}
}
public static class SmackSaslException extends SmackException {
/**
*
*/
private static final long serialVersionUID = 1L;
public SmackSaslException(Exception exception) {
super(exception);
}
public SmackSaslException(String message) {
super(message);
}
public SmackSaslException(String message, Exception exception) {
super(message, exception);
}
}
public static class SmackCertificateException extends SmackException {
private static final long serialVersionUID = 1L;
private final CertificateException certificateException;
public SmackCertificateException(CertificateException certificateException) {
this.certificateException = certificateException;
}
public CertificateException getCertificateException() {
return certificateException;
}
}
}
