summaryrefslogtreecommitdiffstats
blob: 83de26327f8293bcd85c2d16706dc0b871dbb1ab (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
#include "Swiften/Parser/XMPPParser.h"

#include <iostream>
#include <cassert>

#include "Swiften/Elements/ProtocolHeader.h"
#include "Swiften/Base/String.h"
#include "Swiften/Parser/XMLParser.h"
#include "Swiften/Parser/PlatformXMLParserFactory.h"
#include "Swiften/Parser/XMPPParserClient.h"
#include "Swiften/Parser/XMPPParser.h"
#include "Swiften/Parser/ElementParser.h"
#include "Swiften/Parser/PresenceParser.h"
#include "Swiften/Parser/IQParser.h"
#include "Swiften/Parser/MessageParser.h"
#include "Swiften/Parser/StreamFeaturesParser.h"
#include "Swiften/Parser/AuthRequestParser.h"
#include "Swiften/Parser/AuthSuccessParser.h"
#include "Swiften/Parser/AuthFailureParser.h"
#include "Swiften/Parser/AuthChallengeParser.h"
#include "Swiften/Parser/AuthResponseParser.h"
#include "Swiften/Parser/StartTLSParser.h"
#include "Swiften/Parser/StartTLSFailureParser.h"
#include "Swiften/Parser/CompressParser.h"
#include "Swiften/Parser/CompressFailureParser.h"
#include "Swiften/Parser/CompressedParser.h"
#include "Swiften/Parser/UnknownElementParser.h"
#include "Swiften/Parser/TLSProceedParser.h"

// TODO: Whenever an error occurs in the handlers, stop the parser by returing
// a bool value, and stopping the XML parser

namespace Swift {

XMPPParser::XMPPParser(
		XMPPParserClient* client, 
		PayloadParserFactoryCollection* payloadParserFactories) : 
				xmlParser_(0),
				client_(client), 
				payloadParserFactories_(payloadParserFactories), 
				currentDepth_(0),
				currentElementParser_(0),
				parseErrorOccurred_(false) {
	xmlParser_ = PlatformXMLParserFactory().createXMLParser(this);
}

XMPPParser::~XMPPParser() {
	delete currentElementParser_;
	delete xmlParser_;
}

bool XMPPParser::parse(const String& data) {
	bool xmlParseResult = xmlParser_->parse(data);
	return xmlParseResult && !parseErrorOccurred_;
}

void XMPPParser::handleStartElement(const String& element, const String& ns, const AttributeMap& attributes) {
	if (!inStream()) {
		if (element == "stream" && ns == "http://etherx.jabber.org/streams") {
			ProtocolHeader header;
			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_);
			delete currentElementParser_;
			currentElementParser_ = createElementParser(element, ns);
		}
		currentElementParser_->handleStartElement(element, ns, attributes);
	}
	++currentDepth_;
}

void XMPPParser::handleEndElement(const String& element, const String& ns) {
	assert(inStream());
	if (inElement()) {
		assert(currentElementParser_);
		currentElementParser_->handleEndElement(element, ns);
		--currentDepth_;
		if (!inElement()) {
			client_->handleElement(currentElementParser_->getElement());
			delete currentElementParser_;
			currentElementParser_ = 0;
		}
	}
	else {
		assert(element == "stream");
		--currentDepth_;
		client_->handleStreamEnd();
	}
}

void XMPPParser::handleCharacterData(const String& data) {
	if (currentElementParser_) {
		currentElementParser_->handleCharacterData(data);
	}
	//else {
	//	std::cerr << "XMPPParser: Ignoring stray character data: " << data << std::endl;
	//}
}

ElementParser* XMPPParser::createElementParser(const String& element, const String& ns) {
	if (element == "presence") {
		return new PresenceParser(payloadParserFactories_);
	}
	else if (element == "iq") {
		return new IQParser(payloadParserFactories_);
	}
	else if (element == "message") {
		return new MessageParser(payloadParserFactories_);
	}
	else if (element == "features"  && ns == "http://etherx.jabber.org/streams") {
		return new StreamFeaturesParser();
	}
	else if (element == "auth") {
		return new AuthRequestParser();
	}
	else if (element == "success") {
		return new AuthSuccessParser();
	}
	else if (element == "failure" && ns == "urn:ietf:params:xml:ns:xmpp-sasl") {
		return new AuthFailureParser();
	}
	else if (element == "challenge" && ns == "urn:ietf:params:xml:ns:xmpp-sasl") {
		return new AuthChallengeParser();
	}
	else if (element == "response" && ns == "urn:ietf:params:xml:ns:xmpp-sasl") {
		return new AuthResponseParser();
	}
	else if (element == "starttls") {
		return new StartTLSParser();
	}
	else if (element == "failure" && ns == "urn:ietf:params:xml:ns:xmpp-tls") {
		return new StartTLSFailureParser();
	}
	else if (element == "compress") {
		return new CompressParser();
	}
	else if (element == "compressed") {
		return new CompressedParser();
	}
	else if (element == "failure" && ns == "http://jabber.org/protocol/compress") {
		return new CompressFailureParser();
	}
	else if (element == "proceed") {
		return new TLSProceedParser();
	}
	return new UnknownElementParser();
}

}