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/**
* @file
* @author 2012-2013 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
* @copyright Simplified BSD
*
* @cond
* This program is free software: you can redistribute it and/or modify
* it under the terms of the FreeBSD license as published by the FreeBSD
* project.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the FreeBSD license along with this
* program. If not, see <http://www.opensource.org/licenses/bsd-license>.
* @endcond
*/
#include "uscxml/plugins/ioprocessor/modality/MMIHTTPIOProcessor.h"
#include "uscxml/Message.h"
#ifdef BUILD_AS_PLUGINS
#include <Pluma/Connector.hpp>
#endif
namespace uscxml {
#ifdef BUILD_AS_PLUGINS
PLUMA_CONNECTOR
bool pluginConnect(pluma::Host& host) {
host.add( new MMIHTTPIOProcessorProvider() );
return true;
}
#endif
MMIHTTPIOProcessor::MMIHTTPIOProcessor() {
}
MMIHTTPIOProcessor::~MMIHTTPIOProcessor() {
}
boost::shared_ptr<IOProcessorImpl> MMIHTTPIOProcessor::create(InterpreterImpl* interpreter) {
boost::shared_ptr<MMIHTTPIOProcessor> io = boost::shared_ptr<MMIHTTPIOProcessor>(new MMIHTTPIOProcessor());
io->_interpreter = interpreter;
// register at http server
std::string path = interpreter->getName();
int i = 2;
while (!HTTPServer::registerServlet(path + "/mmihttp", io.get())) {
std::stringstream ss;
ss << interpreter->getName() << i++;
path = ss.str();
}
return io;
}
bool MMIHTTPIOProcessor::httpRecvRequest(const HTTPServer::Request& req) {
Event reqEvent = req;
reqEvent.eventType = Event::EXTERNAL;
bool scxmlStructFound = false;
if (reqEvent.data.compound["header"].compound.find("Content-Type") != reqEvent.data.compound["header"].compound.end() &&
boost::iequals(reqEvent.data.compound["header"].compound["Content-Type"].atom, "application/x-www-form-urlencoded")) {
std::stringstream ss(reqEvent.data.compound["content"].atom);
std::string term;
while(std::getline(ss, term, '&')) {
size_t split = term.find_first_of("=");
if (split != std::string::npos) {
std::string key = evhttp_decode_uri(term.substr(0, split).c_str());
std::string value = evhttp_decode_uri(term.substr(split + 1).c_str());
if (boost::iequals(key, "_scxmleventname")) {
reqEvent.name = value;
} else if (boost::iequals(key, "content")) {
reqEvent.initContent(value);
} else {
reqEvent.data.compound[key] = value;
reqEvent.params.insert(std::make_pair(key, value));
}
} else {
// this is most likely wrong
reqEvent.content = evhttp_decode_uri(term.c_str());
}
}
} else {
if (reqEvent.data.compound["header"].compound.find("_scxmleventstruct") != reqEvent.data.compound["header"].compound.end()) {
// TODO: this looses all other information
reqEvent = Event::fromXML(evhttp_decode_uri(reqEvent.data.compound["header"].compound["_scxmleventstruct"].atom.c_str()));
scxmlStructFound = true;
}
if (reqEvent.data.compound["header"].compound.find("_scxmleventname") != reqEvent.data.compound["header"].compound.end()) {
reqEvent.name = evhttp_decode_uri(reqEvent.data.compound["header"].compound["_scxmleventname"].atom.c_str());
}
}
std::map<std::string, Data>::iterator headerIter = reqEvent.data.compound["header"].compound.begin();
while(headerIter != reqEvent.data.compound["header"].compound.end()) {
reqEvent.data.compound[headerIter->first] = Data(evhttp_decode_uri(headerIter->second.atom.c_str()), Data::VERBATIM);
headerIter++;
}
#if 0
std::map<std::string, std::string>::const_iterator headerIter = req.headers.begin();
while(headerIter != req.headers.end()) {
if (boost::iequals("_scxmleventstruct", headerIter->first)) {
reqEvent = Event::fromXML(evhttp_decode_uri(headerIter->second.c_str()));
scxmlStructFound = true;
break;
} else if (boost::iequals("_scxmleventname", headerIter->first)) {
reqEvent.name = evhttp_decode_uri(headerIter->second.c_str());
} else {
reqEvent.data.compound[headerIter->first] = Data(evhttp_decode_uri(headerIter->second.c_str()), Data::VERBATIM);
}
headerIter++;
}
#endif
/// test532
if (reqEvent.name.length() == 0)
reqEvent.name = "http." + req.data.compound.at("type").atom;
if (!scxmlStructFound) {
// get content into event
reqEvent.data.compound["content"] = Data(req.content, Data::VERBATIM);
}
returnEvent(reqEvent);
evhttp_send_reply(req.curlReq, 200, "OK", NULL);
return true;
}
void MMIHTTPIOProcessor::send(const SendRequest& req) {
if (req.target.length() == 0) {
_interpreter->receiveInternal(Event("error.communication", Event::PLATFORM));
return;
}
bool isLocal = false;
std::string target;
if (!boost::equals(req.target, _url)) {
target = req.target;
} else {
isLocal = true;
target = _url;
}
URL targetURL(target);
std::stringstream kvps;
std::string kvpSeperator;
// event name
if (req.name.size() > 0) {
kvps << kvpSeperator << evhttp_encode_uri("_scxmleventname") << "=" << evhttp_encode_uri(req.name.c_str());
kvpSeperator = "&";
// targetURL.addOutHeader("_scxmleventname", evhttp_encode_uri(req.name.c_str()));
}
// event namelist
if (req.namelist.size() > 0) {
std::map<std::string, Data>::const_iterator namelistIter = req.namelist.begin();
while (namelistIter != req.namelist.end()) {
// this is simplified - Data might be more elaborate than a simple string atom
kvps << kvpSeperator << evhttp_encode_uri(namelistIter->first.c_str()) << "=" << evhttp_encode_uri(namelistIter->second.atom.c_str());
kvpSeperator = "&";
// targetURL.addOutHeader(namelistIter->first, namelistIter->second);
namelistIter++;
}
}
// event params
if (req.params.size() > 0) {
std::multimap<std::string, Data>::const_iterator paramIter = req.params.begin();
while (paramIter != req.params.end()) {
// this is simplified - Data might be more elaborate than a simple string atom
kvps << kvpSeperator << evhttp_encode_uri(paramIter->first.c_str()) << "=" << evhttp_encode_uri(paramIter->second.atom.c_str());
kvpSeperator = "&";
// targetURL.addOutHeader(paramIter->first, paramIter->second);
paramIter++;
}
}
// content
if (req.content.size() > 0) {
kvps << kvpSeperator << evhttp_encode_uri("content") << "=" << evhttp_encode_uri(req.content.c_str());
kvpSeperator = "&";
}
if (req.dom) {
std::stringstream xmlStream;
xmlStream << req.dom;
kvps << kvpSeperator << evhttp_encode_uri("content") << "=" << evhttp_encode_uri(xmlStream.str().c_str());
kvpSeperator = "&";
}
targetURL.setOutContent(kvps.str());
targetURL.setRequestType("post");
targetURL.addMonitor(this);
_sendRequests[req.sendid] = std::make_pair(targetURL, req);
if (isLocal) {
// test201 use a blocking request with local communication
targetURL.download(true);
} else {
URLFetcher::fetchURL(targetURL);
}
}
}
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