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1 /* | |
2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license | |
5 * that can be found in the LICENSE file in the root of the source | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #include "webrtc/libjingle/xmpp/xmppstanzaparser.h" | |
12 | |
13 #include "webrtc/libjingle/xmllite/xmlelement.h" | |
14 #include "webrtc/libjingle/xmpp/constants.h" | |
15 #include "webrtc/base/common.h" | |
16 #ifdef EXPAT_RELATIVE_PATH | |
17 #include "expat.h" | |
18 #else | |
19 #include "third_party/expat/v2_0_1/Source/lib/expat.h" | |
20 #endif | |
21 | |
22 namespace buzz { | |
23 | |
24 XmppStanzaParser::XmppStanzaParser(XmppStanzaParseHandler *psph) : | |
25 psph_(psph), | |
26 innerHandler_(this), | |
27 parser_(&innerHandler_), | |
28 depth_(0), | |
29 builder_() { | |
30 } | |
31 | |
32 void | |
33 XmppStanzaParser::Reset() { | |
34 parser_.Reset(); | |
35 depth_ = 0; | |
36 builder_.Reset(); | |
37 } | |
38 | |
39 void | |
40 XmppStanzaParser::IncomingStartElement( | |
41 XmlParseContext * pctx, const char * name, const char ** atts) { | |
42 if (depth_++ == 0) { | |
43 XmlElement * pelStream = XmlBuilder::BuildElement(pctx, name, atts); | |
44 if (pelStream == NULL) { | |
45 pctx->RaiseError(XML_ERROR_SYNTAX); | |
46 return; | |
47 } | |
48 psph_->StartStream(pelStream); | |
49 delete pelStream; | |
50 return; | |
51 } | |
52 | |
53 builder_.StartElement(pctx, name, atts); | |
54 } | |
55 | |
56 void | |
57 XmppStanzaParser::IncomingCharacterData( | |
58 XmlParseContext * pctx, const char * text, int len) { | |
59 if (depth_ > 1) { | |
60 builder_.CharacterData(pctx, text, len); | |
61 } | |
62 } | |
63 | |
64 void | |
65 XmppStanzaParser::IncomingEndElement( | |
66 XmlParseContext * pctx, const char * name) { | |
67 if (--depth_ == 0) { | |
68 psph_->EndStream(); | |
69 return; | |
70 } | |
71 | |
72 builder_.EndElement(pctx, name); | |
73 | |
74 if (depth_ == 1) { | |
75 XmlElement *element = builder_.CreateElement(); | |
76 psph_->Stanza(element); | |
77 delete element; | |
78 } | |
79 } | |
80 | |
81 void | |
82 XmppStanzaParser::IncomingError( | |
83 XmlParseContext * pctx, XML_Error errCode) { | |
84 RTC_UNUSED(pctx); | |
85 RTC_UNUSED(errCode); | |
86 psph_->XmlError(); | |
87 } | |
88 | |
89 } | |
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