mirror of https://github.com/aria2/aria2
123 lines
3.7 KiB
C++
123 lines
3.7 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2009 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "ExpatXmlRpcRequestProcessor.h"
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#include <stack>
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#include <expat.h>
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#include "XmlRpcRequestParserStateMachine.h"
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#include "Util.h"
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#include "DlAbortEx.h"
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#include "message.h"
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namespace aria2 {
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namespace xmlrpc {
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struct SessionData {
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XmlRpcRequestParserStateMachine* _stm;
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std::stack<std::string> _charactersStack;
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SessionData(XmlRpcRequestParserStateMachine* stm):_stm(stm) {}
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};
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static void mlStartElement(void* userData, const char* name, const char** attrs)
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{
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SessionData* sd = reinterpret_cast<SessionData*>(userData);
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std::map<std::string, std::string> attrmap;
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if(attrs) {
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const char** p = attrs;
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while(*p != 0) {
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std::string name = *p++;
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if(*p == 0) {
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break;
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}
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std::string value = Util::trim(*p++);
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attrmap[name] = value;
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}
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}
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sd->_stm->beginElement(name, attrmap);
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if(sd->_stm->needsCharactersBuffering()) {
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sd->_charactersStack.push(std::string());
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}
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}
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static void mlEndElement(void* userData, const char* name)
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{
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SessionData* sd = reinterpret_cast<SessionData*>(userData);
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std::string characters;
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if(sd->_stm->needsCharactersBuffering()) {
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characters = Util::trim(sd->_charactersStack.top());
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sd->_charactersStack.pop();
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}
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sd->_stm->endElement(name, characters);
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}
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static void mlCharacters(void* userData, const char* ch, int len)
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{
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SessionData* sd = reinterpret_cast<SessionData*>(userData);
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if(sd->_stm->needsCharactersBuffering()) {
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sd->_charactersStack.top() += std::string(&ch[0], &ch[len]);
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}
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}
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XmlRpcRequest
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XmlRpcRequestProcessor::parseMemory(const std::string& xml)
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{
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_stm.reset(new XmlRpcRequestParserStateMachine());
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SharedHandle<SessionData> sessionData(new SessionData(_stm.get()));
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XML_Parser parser = XML_ParserCreate(0);
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XML_SetUserData(parser, sessionData.get());
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XML_SetElementHandler(parser, &mlStartElement, &mlEndElement);
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XML_SetCharacterDataHandler(parser, &mlCharacters);
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int r = XML_Parse(parser, xml.data(), xml.size(), 1);
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XML_ParserFree(parser);
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if(r == XML_STATUS_ERROR) {
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throw DL_ABORT_EX(MSG_CANNOT_PARSE_XML_RPC_REQUEST);
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}
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return XmlRpcRequest(_stm->getMethodName(), _stm->getCurrentFrameValue());
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}
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} // namespace xmlrpc
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} // namespace aria2
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