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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 final XMLParser xmlParser_;
private final XMPPParserClient client_;
private final PayloadParserFactoryCollection payloadParserFactories_;
private int currentDepth_ = 0;
private ElementParser currentElementParser_ = null;
private boolean parseErrorOccurred_ = false;
private Logger logger_ = Logger.getLogger(this.getClass().getName());
public XMPPParser(XMPPParserClient parserClient,
PayloadParserFactoryCollection payloadParserFactories) {
client_ = parserClient;
payloadParserFactories_ = payloadParserFactories;
xmlParser_ = PlatformXMLParserFactory.createXMLParser(this);
}
public boolean parse(String data) {
parseErrorOccurred_ = false;
boolean xmlParseResult = false;
try {
xmlParseResult = xmlParser_.parse(data);
} catch (Exception e) {
parseErrorOccurred_ = true;
logger_.log(java.util.logging.Level.WARNING, "Data " + data + " caused:\n" + e.getMessage(), e);
}
if (parseErrorOccurred_ || !xmlParseResult) {
logger_.warning(String.format("When parsing, %b and %b",
parseErrorOccurred_, xmlParseResult));
if (data != null) {
logger_.warning("xml that caused failure: " + data);
}
}
return xmlParseResult && !parseErrorOccurred_;
}
public void handleStartElement(String element, String ns,
AttributeMap attributes) {
if (!inStream()) {
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 (!inElement()) {
assert currentElementParser_ == null;
currentElementParser_ = createElementParser(element, ns);
}
currentElementParser_.handleStartElement(element, ns, attributes);
}
++currentDepth_;
}
public void handleEndElement(String element, String ns) {
assert (inStream());
if (inElement()) {
assert currentElementParser_ != null;
currentElementParser_.handleEndElement(element, ns);
--currentDepth_;
if (!inElement()) {
client_.handleElement(currentElementParser_.getElement());
currentElementParser_ = null;
}
} else {
assert (element.equals("stream"));
--currentDepth_;
client_.handleStreamEnd();
}
}
public void handleCharacterData(String data) {
if (currentElementParser_ != null) {
currentElementParser_.handleCharacterData(data);
}
}
private boolean inStream() {
return currentDepth_ > 0;
}
private boolean inElement() {
return currentDepth_ > 1;
}
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("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();
}
return new UnknownElementParser();
}
}
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Swift