rhubarb-lip-sync/lib/webrtc-8d2248ff/webrtc/libjingle/xmpp/xmppstanzaparser.cc

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2016-06-21 20:13:05 +00:00
/*
* Copyright 2004 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/libjingle/xmpp/xmppstanzaparser.h"
#include "webrtc/libjingle/xmllite/xmlelement.h"
#include "webrtc/libjingle/xmpp/constants.h"
#include "webrtc/base/common.h"
#ifdef EXPAT_RELATIVE_PATH
#include "expat.h"
#else
#include "third_party/expat/v2_0_1/Source/lib/expat.h"
#endif
namespace buzz {
XmppStanzaParser::XmppStanzaParser(XmppStanzaParseHandler *psph) :
psph_(psph),
innerHandler_(this),
parser_(&innerHandler_),
depth_(0),
builder_() {
}
void
XmppStanzaParser::Reset() {
parser_.Reset();
depth_ = 0;
builder_.Reset();
}
void
XmppStanzaParser::IncomingStartElement(
XmlParseContext * pctx, const char * name, const char ** atts) {
if (depth_++ == 0) {
XmlElement * pelStream = XmlBuilder::BuildElement(pctx, name, atts);
if (pelStream == NULL) {
pctx->RaiseError(XML_ERROR_SYNTAX);
return;
}
psph_->StartStream(pelStream);
delete pelStream;
return;
}
builder_.StartElement(pctx, name, atts);
}
void
XmppStanzaParser::IncomingCharacterData(
XmlParseContext * pctx, const char * text, int len) {
if (depth_ > 1) {
builder_.CharacterData(pctx, text, len);
}
}
void
XmppStanzaParser::IncomingEndElement(
XmlParseContext * pctx, const char * name) {
if (--depth_ == 0) {
psph_->EndStream();
return;
}
builder_.EndElement(pctx, name);
if (depth_ == 1) {
XmlElement *element = builder_.CreateElement();
psph_->Stanza(element);
delete element;
}
}
void
XmppStanzaParser::IncomingError(
XmlParseContext * pctx, XML_Error errCode) {
RTC_UNUSED(pctx);
RTC_UNUSED(errCode);
psph_->XmlError();
}
}