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Diffstat (limited to 'src/org/jivesoftware/smack/BOSHPacketReader.java')
| -rw-r--r-- | src/org/jivesoftware/smack/BOSHPacketReader.java | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/src/org/jivesoftware/smack/BOSHPacketReader.java b/src/org/jivesoftware/smack/BOSHPacketReader.java new file mode 100644 index 0000000..c86d756 --- /dev/null +++ b/src/org/jivesoftware/smack/BOSHPacketReader.java @@ -0,0 +1,169 @@ +/** + * $RCSfile$ + * $Revision$ + * $Date$ + * + * Copyright 2009 Jive Software. + * + * All rights reserved. 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.io.StringReader; + +import org.jivesoftware.smack.util.PacketParserUtils; +import org.jivesoftware.smack.sasl.SASLMechanism.Challenge; +import org.jivesoftware.smack.sasl.SASLMechanism.Failure; +import org.jivesoftware.smack.sasl.SASLMechanism.Success; +import org.xmlpull.v1.XmlPullParserFactory; +import org.xmlpull.v1.XmlPullParser; + +import com.kenai.jbosh.AbstractBody; +import com.kenai.jbosh.BOSHClientResponseListener; +import com.kenai.jbosh.BOSHMessageEvent; +import com.kenai.jbosh.BodyQName; +import com.kenai.jbosh.ComposableBody; + +/** + * Listens for XML traffic from the BOSH connection manager and parses it into + * packet objects. + * + * @author Guenther Niess + */ +public class BOSHPacketReader implements BOSHClientResponseListener { + + private BOSHConnection connection; + + /** + * Create a packet reader which listen on a BOSHConnection for received + * HTTP responses, parse the packets and notifies the connection. + * + * @param connection the corresponding connection for the received packets. + */ + public BOSHPacketReader(BOSHConnection connection) { + this.connection = connection; + } + + /** + * Parse the received packets and notify the corresponding connection. + * + * @param event the BOSH client response which includes the received packet. + */ + public void responseReceived(BOSHMessageEvent event) { + AbstractBody body = event.getBody(); + if (body != null) { + try { + if (connection.sessionID == null) { + connection.sessionID = body.getAttribute(BodyQName.create(BOSHConnection.BOSH_URI, "sid")); + } + if (connection.authID == null) { + connection.authID = body.getAttribute(BodyQName.create(BOSHConnection.BOSH_URI, "authid")); + } + final XmlPullParser parser = XmlPullParserFactory.newInstance().newPullParser(); + parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, + true); + parser.setInput(new StringReader(body.toXML())); + int eventType = parser.getEventType(); + do { + eventType = parser.next(); + if (eventType == XmlPullParser.START_TAG) { + if (parser.getName().equals("body")) { + // ignore the container root element + } else if (parser.getName().equals("message")) { + connection.processPacket(PacketParserUtils.parseMessage(parser)); + } else if (parser.getName().equals("iq")) { + connection.processPacket(PacketParserUtils.parseIQ(parser, connection)); + } else if (parser.getName().equals("presence")) { + connection.processPacket(PacketParserUtils.parsePresence(parser)); + } else if (parser.getName().equals("challenge")) { + // The server is challenging the SASL authentication + // made by the client + final String challengeData = parser.nextText(); + connection.getSASLAuthentication() + .challengeReceived(challengeData); + connection.processPacket(new Challenge( + challengeData)); + } else if (parser.getName().equals("success")) { + connection.send(ComposableBody.builder() + .setNamespaceDefinition("xmpp", BOSHConnection.XMPP_BOSH_NS) + .setAttribute( + BodyQName.createWithPrefix(BOSHConnection.XMPP_BOSH_NS, "restart", "xmpp"), + "true") + .setAttribute( + BodyQName.create(BOSHConnection.BOSH_URI, "to"), + connection.getServiceName()) + .build()); + connection.getSASLAuthentication().authenticated(); + connection.processPacket(new Success(parser.nextText())); + } else if (parser.getName().equals("features")) { + parseFeatures(parser); + } else if (parser.getName().equals("failure")) { + if ("urn:ietf:params:xml:ns:xmpp-sasl".equals(parser.getNamespace(null))) { + final Failure failure = PacketParserUtils.parseSASLFailure(parser); + connection.getSASLAuthentication().authenticationFailed(); + connection.processPacket(failure); + } + } else if (parser.getName().equals("error")) { + throw new XMPPException(PacketParserUtils.parseStreamError(parser)); + } + } + } while (eventType != XmlPullParser.END_DOCUMENT); + } + catch (Exception e) { + if (connection.isConnected()) { + connection.notifyConnectionError(e); + } + } + } + } + + /** + * Parse and setup the XML stream features. + * + * @param parser the XML parser, positioned at the start of a message packet. + * @throws Exception if an exception occurs while parsing the packet. + */ + private void parseFeatures(XmlPullParser parser) throws Exception { + boolean done = false; + while (!done) { + int eventType = parser.next(); + + if (eventType == XmlPullParser.START_TAG) { + if (parser.getName().equals("mechanisms")) { + // The server is reporting available SASL mechanisms. Store + // this information + // which will be used later while logging (i.e. + // authenticating) into + // the server + connection.getSASLAuthentication().setAvailableSASLMethods( + PacketParserUtils.parseMechanisms(parser)); + } else if (parser.getName().equals("bind")) { + // The server requires the client to bind a resource to the + // stream + connection.getSASLAuthentication().bindingRequired(); + } else if (parser.getName().equals("session")) { + // The server supports sessions + connection.getSASLAuthentication().sessionsSupported(); + } else if (parser.getName().equals("register")) { + connection.getAccountManager().setSupportsAccountCreation( + true); + } + } else if (eventType == XmlPullParser.END_TAG) { + if (parser.getName().equals("features")) { + done = true; + } + } + } + } +} |