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author | Michele Calgaro <michele.calgaro@yahoo.it> | 2020-12-09 14:11:22 +0900 |
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committer | Michele Calgaro <michele.calgaro@yahoo.it> | 2020-12-09 14:11:22 +0900 |
commit | a06e2c2f225d76b67b0058a9880222f75d5495c3 (patch) | |
tree | 6afffac4dbc4eb2f25bdd2847d5b1105699dc772 /kopete/protocols/jabber/jingle/libjingle/talk/xmllite/xmlparser.cpp | |
parent | e19d155e7eb8fe8dee0b10b954b09396816733db (diff) | |
download | tdenetwork-a06e2c2f225d76b67b0058a9880222f75d5495c3.tar.gz tdenetwork-a06e2c2f225d76b67b0058a9880222f75d5495c3.zip |
Renaming of files in preparation for code style tools.
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
Diffstat (limited to 'kopete/protocols/jabber/jingle/libjingle/talk/xmllite/xmlparser.cpp')
-rw-r--r-- | kopete/protocols/jabber/jingle/libjingle/talk/xmllite/xmlparser.cpp | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/xmllite/xmlparser.cpp b/kopete/protocols/jabber/jingle/libjingle/talk/xmllite/xmlparser.cpp new file mode 100644 index 00000000..41cadb84 --- /dev/null +++ b/kopete/protocols/jabber/jingle/libjingle/talk/xmllite/xmlparser.cpp @@ -0,0 +1,250 @@ +/* + * libjingle + * Copyright 2004--2005, Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "talk/base/stl_decl.h" +#include <string> +#include <vector> +#include <iostream> +#include <expat.h> +#include "talk/xmllite/xmlelement.h" +#include "talk/base/common.h" +#include "talk/xmllite/xmlparser.h" +#include "talk/xmllite/xmlnsstack.h" +#include "talk/xmllite/xmlconstants.h" + +#include <expat.h> + +#define new TRACK_NEW + +namespace buzz { + + +static void +StartElementCallback(void * userData, const char *name, const char **atts) { + (static_cast<XmlParser *>(userData))->ExpatStartElement(name, atts); +} + +static void +EndElementCallback(void * userData, const char *name) { + (static_cast<XmlParser *>(userData))->ExpatEndElement(name); +} + +static void +CharacterDataCallback(void * userData, const char *text, int len) { + (static_cast<XmlParser *>(userData))->ExpatCharacterData(text, len); +} + +static void +XmlDeclCallback(void * userData, const char * ver, const char * enc, int st) { + (static_cast<XmlParser *>(userData))->ExpatXmlDecl(ver, enc, st); +} + +XmlParser::XmlParser(XmlParseHandler *pxph) : + context_(this), pxph_(pxph), sentError_(false) { + expat_ = XML_ParserCreate(NULL); + XML_SetUserData(expat_, this); + XML_SetElementHandler(expat_, StartElementCallback, EndElementCallback); + XML_SetCharacterDataHandler(expat_, CharacterDataCallback); + XML_SetXmlDeclHandler(expat_, XmlDeclCallback); +} + +void +XmlParser::Reset() { + if (!XML_ParserReset(expat_, NULL)) { + XML_ParserFree(expat_); + expat_ = XML_ParserCreate(NULL); + } + XML_SetUserData(expat_, this); + XML_SetElementHandler(expat_, StartElementCallback, EndElementCallback); + XML_SetCharacterDataHandler(expat_, CharacterDataCallback); + XML_SetXmlDeclHandler(expat_, XmlDeclCallback); + context_.Reset(); + sentError_ = false; +} + +static bool +XmlParser_StartsWithXmlns(const char *name) { + return name[0] == 'x' && + name[1] == 'm' && + name[2] == 'l' && + name[3] == 'n' && + name[4] == 's'; +} + +void +XmlParser::ExpatStartElement(const char *name, const char **atts) { + if (context_.RaisedError() != XML_ERROR_NONE) + return; + const char **att; + context_.StartElement(); + for (att = atts; *att; att += 2) { + if (XmlParser_StartsWithXmlns(*att)) { + if ((*att)[5] == '\0') { + context_.StartNamespace("", *(att + 1)); + } + else if ((*att)[5] == ':') { + if (**(att + 1) == '\0') { + // In XML 1.0 empty namespace illegal with prefix (not in 1.1) + context_.RaiseError(XML_ERROR_SYNTAX); + return; + } + context_.StartNamespace((*att) + 6, *(att + 1)); + } + } + } + pxph_->StartElement(&context_, name, atts); +} + +void +XmlParser::ExpatEndElement(const char *name) { + if (context_.RaisedError() != XML_ERROR_NONE) + return; + context_.EndElement(); + pxph_->EndElement(&context_, name); +} + +void +XmlParser::ExpatCharacterData(const char *text, int len) { + if (context_.RaisedError() != XML_ERROR_NONE) + return; + pxph_->CharacterData(&context_, text, len); +} + +void +XmlParser::ExpatXmlDecl(const char * ver, const char * enc, int standalone) { + if (context_.RaisedError() != XML_ERROR_NONE) + return; + + if (ver && std::string("1.0") != ver) { + context_.RaiseError(XML_ERROR_SYNTAX); + return; + } + + if (standalone == 0) { + context_.RaiseError(XML_ERROR_SYNTAX); + return; + } + + if (enc && !((enc[0] == 'U' || enc[0] == 'u') && + (enc[1] == 'T' || enc[1] == 't') && + (enc[2] == 'F' || enc[2] == 'f') && + enc[3] == '-' && enc[4] =='8')) { + context_.RaiseError(XML_ERROR_INCORRECT_ENCODING); + return; + } + +} + +bool +XmlParser::Parse(const char *data, size_t len, bool isFinal) { + if (sentError_) + return false; + + if (XML_Parse(expat_, data, static_cast<int>(len), isFinal) != XML_STATUS_OK) + context_.RaiseError(XML_GetErrorCode(expat_)); + + if (context_.RaisedError() != XML_ERROR_NONE) { + sentError_ = true; + pxph_->Error(&context_, context_.RaisedError()); + return false; + } + + return true; +} + +XmlParser::~XmlParser() { + XML_ParserFree(expat_); +} + +void +XmlParser::ParseXml(XmlParseHandler *pxph, std::string text) { + XmlParser parser(pxph); + parser.Parse(text.c_str(), text.length(), true); +} + +XmlParser::ParseContext::ParseContext(XmlParser *parser) : + parser_(parser), + xmlnsstack_(), + raised_(XML_ERROR_NONE) { +} + +void +XmlParser::ParseContext::StartNamespace(const char *prefix, const char *ns) { + xmlnsstack_.AddXmlns( + *prefix ? std::string(prefix) : STR_EMPTY, +// ns == NS_CLIENT ? NS_CLIENT : +// ns == NS_ROSTER ? NS_ROSTER : +// ns == NS_GR ? NS_GR : + std::string(ns)); +} + +void +XmlParser::ParseContext::StartElement() { + xmlnsstack_.PushFrame(); +} + +void +XmlParser::ParseContext::EndElement() { + xmlnsstack_.PopFrame(); +} + +TQName +XmlParser::ParseContext::ResolveTQName(const char *qname, bool isAttr) { + const char *c; + for (c = qname; *c; ++c) { + if (*c == ':') { + const std::string * result; + result = xmlnsstack_.NsForPrefix(std::string(qname, c - qname)); + if (result == NULL) + return TQN_EMPTY; + const char * localname = c + 1; + return TQName(*result, localname); + } + } + if (isAttr) { + return TQName(STR_EMPTY, qname); + } + + const std::string * result; + result = xmlnsstack_.NsForPrefix(STR_EMPTY); + if (result == NULL) + return TQN_EMPTY; + + return TQName(*result, qname); +} + +void +XmlParser::ParseContext::Reset() { + xmlnsstack_.Reset(); + raised_ = XML_ERROR_NONE; +} + +XmlParser::ParseContext::~ParseContext() { +} + +} + |