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/*
* Copyright (c) 2010-2015, Isode Limited, London, England.
* All rights reserved.
*/
package com.isode.stroke.parser;
import com.isode.stroke.elements.ProtocolHeader;
import java.util.logging.Logger;
public class XMPPParser implements XMLParserClient {
private XMLParser xmlParser_;
private XMPPParserClient client_;
private PayloadParserFactoryCollection payloadParserFactories_;
private int level_ = 0;
private ElementParser currentElementParser_ = null;
private boolean parseErrorOccurred_ = false;
private Logger logger_ = Logger.getLogger(this.getClass().getName());
private final int TopLevel = 0;
private final int StreamLevel = 1;
private final int ElementLevel = 2;
public XMPPParser(XMPPParserClient parserClient,
PayloadParserFactoryCollection payloadParserFactories) {
xmlParser_ = null;
client_ = parserClient;
payloadParserFactories_ = payloadParserFactories;
level_ = 0;
currentElementParser_ = null;
parseErrorOccurred_ = false;
xmlParser_ = PlatformXMLParserFactory.createXMLParser(this);
}
public boolean parse(String data) {
boolean xmlParseResult = xmlParser_.parse(data);
return xmlParseResult && !parseErrorOccurred_;
}
public void handleStartElement(String element, String ns,
AttributeMap attributes) {
if (!parseErrorOccurred_) {
if (level_ == TopLevel) {
if (element.equals("stream") && ns.equals("http://etherx.jabber.org/streams")) {
ProtocolHeader header = new ProtocolHeader();
header.setFrom(attributes.getAttribute("from"));
header.setTo(attributes.getAttribute("to"));
header.setID(attributes.getAttribute("id"));
header.setVersion(attributes.getAttribute("version"));
client_.handleStreamStart(header);
}
else {
parseErrorOccurred_ = true;
}
}
else {
if (level_ == StreamLevel) {
assert(currentElementParser_ == null);
currentElementParser_ = createElementParser(element, ns);
}
currentElementParser_.handleStartElement(element, ns, attributes);
}
}
++level_;
}
public void handleEndElement(String element, String ns) {
assert(level_ > TopLevel);
--level_;
if (!parseErrorOccurred_) {
if (level_ == TopLevel) {
assert(element.equals("stream"));
client_.handleStreamEnd();
}
else {
assert(currentElementParser_ != null);
currentElementParser_.handleEndElement(element, ns);
if (level_ == StreamLevel) {
client_.handleElement(currentElementParser_.getElement());
currentElementParser_ = null;
}
}
}
}
public void handleCharacterData(String data) {
if (!parseErrorOccurred_) {
if (currentElementParser_ != null) {
currentElementParser_.handleCharacterData(data);
}
//else {
// std::cerr << "XMPPParser: Ignoring stray character data: " << data << std::endl;
//}
}
}
private ElementParser createElementParser(String element, String xmlns) {
if (element.equals("presence")) {
return new PresenceParser(payloadParserFactories_);
} else if (element.equals("iq")) {
return new IQParser(payloadParserFactories_);
} else if (element.equals("message")) {
return new MessageParser(payloadParserFactories_);
} else if (element.equals("features")
&& xmlns.equals("http://etherx.jabber.org/streams")) {
return new StreamFeaturesParser();
} else if (element.equals("error") && xmlns.equals("http://etherx.jabber.org/streams")) {
return new StreamErrorParser();
} else if (element.equals("auth")) {
return new AuthRequestParser();
} else if (element.equals("success")) {
return new AuthSuccessParser();
} else if (element.equals("failure")
&& xmlns.equals("urn:ietf:params:xml:ns:xmpp-sasl")) {
return new AuthFailureParser();
} else if (element.equals("challenge")
&& xmlns.equals("urn:ietf:params:xml:ns:xmpp-sasl")) {
return new AuthChallengeParser();
} else if (element.equals("response")
&& xmlns.equals("urn:ietf:params:xml:ns:xmpp-sasl")) {
return new AuthResponseParser();
} else if (element.equals("starttls")) {
return new StartTLSParser();
} else if (element.equals("failure")
&& xmlns.equals("urn:ietf:params:xml:ns:xmpp-tls")) {
return new StartTLSFailureParser();
} else if (element.equals("compress")) {
return new CompressParser();
} else if (element.equals("compressed")) {
return new CompressedParser();
} else if (element.equals("failure")
&& xmlns.equals("http://jabber.org/protocol/compress")) {
return new CompressFailureParser();
} else if (element.equals("proceed")) {
return new TLSProceedParser();
} else if (element.equals("enable") && xmlns.equals("urn:xmpp:sm:2")) {
return new EnableStreamManagementParser();
} else if (element.equals("enabled") && xmlns.equals("urn:xmpp:sm:2")) {
return new StreamManagementEnabledParser();
} else if (element.equals("failed") && xmlns.equals("urn:xmpp:sm:2")) {
return new StreamManagementFailedParser();
} else if (element.equals("resume") && xmlns.equals("urn:xmpp:sm:2")) {
return new StreamResumeParser();
} else if (element.equals("resumed") && xmlns.equals("urn:xmpp:sm:2")) {
return new StreamResumedParser();
} else if (element.equals("a") && xmlns.equals("urn:xmpp:sm:2")) {
return new StanzaAckParser();
} else if (element.equals("r") && xmlns.equals("urn:xmpp:sm:2")) {
return new StanzaAckRequestParser();
} else if (element.equals("handshake")) {
return new ComponentHandshakeParser();
}
return new UnknownElementParser();
}
}
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Swift