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+/* <!-- 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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+
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+#include <stack>
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+
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+#include <expat.h>
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+
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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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+
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+namespace aria2 {
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+
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+namespace xmlrpc {
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+
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+struct SessionData {
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+ XmlRpcRequestParserStateMachine* _stm;
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+
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+ std::stack<std::string> _charactersStack;
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+
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+ SessionData(XmlRpcRequestParserStateMachine* stm):_stm(stm) {}
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+};
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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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+
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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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+
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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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+
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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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+
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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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+
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+ XML_Parser parser = XML_ParserCreate(0);
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+
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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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+
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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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+
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+ if(r == XML_STATUS_ERROR) {
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+ throw DlAbortEx("Failed to 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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+
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+} // namespace xmlrpc
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+
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+} // namespace aria2
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Tatsuhiro Tsujikawa