osrm-backend/Server/RequestHandler.h
2012-02-17 14:19:45 +01:00

117 lines
3.8 KiB
C++

/*
open source routing machine
Copyright (C) Dennis Luxen, 2010
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU AFFERO General Public License as published by
the Free Software Foundation; either version 3 of the License, or
any later version.
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. See the
GNU General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
or see http://www.gnu.org/licenses/agpl.txt.
*/
#ifndef REQUEST_HANDLER_H
#define REQUEST_HANDLER_H
#include <algorithm>
#include <cctype> // std::tolower
#include <string>
#include <iostream>
#include <boost/lexical_cast.hpp>
#include <boost/noncopyable.hpp>
#include "BasicDatastructures.h"
#include "../DataStructures/HashTable.h"
#include "../Plugins/BasePlugin.h"
#include "../Plugins/RouteParameters.h"
#include "../typedefs.h"
namespace http {
class RequestHandler : private boost::noncopyable {
public:
explicit RequestHandler() : _pluginCount(0) { }
~RequestHandler() {
for(unsigned i = 0; i < _pluginVector.size(); i++) {
BasePlugin * tempPointer = _pluginVector[i];
DELETE( tempPointer );
}
}
void handle_request(const Request& req, Reply& rep){
//parse command
std::string request(req.uri);
// INFO( "[r] " << request );
std::string command;
std::size_t firstAmpPosition = request.find_first_of("?");
command = request.substr(1,firstAmpPosition-1);
// DEBUG("[debug] looking for handler for command: " << command);
try {
if(pluginMap.Holds(command)) {
RouteParameters routeParameters;
std::stringstream ss(( firstAmpPosition == std::string::npos ? "" : request.substr(firstAmpPosition+1) ));
std::string item;
while(std::getline(ss, item, '&')) {
size_t found = item.find('=');
if(found == std::string::npos) {
routeParameters.parameters.push_back(item);
} else {
std::string p = item.substr(0, found);
std::transform(p.begin(), p.end(), p.begin(), (int(*)(int)) std::tolower);
std::string o = item.substr(found+1);
if("jsonp" != p)
std::transform(o.begin(), o.end(), o.begin(), (int(*)(int)) std::tolower);
if("via" == p ) {
if(25 >= routeParameters.viaPoints.size()) {
routeParameters.viaPoints.push_back(o);
}
} else {
routeParameters.options.Set(p, o);
}
}
}
// std::cout << "[debug] found handler for '" << command << "' at version: " << pluginMap.Find(command)->GetVersionString() << std::endl;
// std::cout << "[debug] remaining parameters: " << parameters.size() << std::endl;
rep.status = Reply::ok;
_pluginVector[pluginMap.Find(command)]->HandleRequest(routeParameters, rep );
// std::cout << rep.content << std::endl;
} else {
rep = Reply::stockReply(Reply::badRequest);
}
return;
} catch(std::exception& e) {
rep = Reply::stockReply(Reply::internalServerError);
std::cerr << "[server error] code: " << e.what() << ", uri: " << req.uri << std::endl;
return;
}
};
void RegisterPlugin(BasePlugin * plugin) {
std::cout << "[handler] registering plugin " << plugin->GetDescriptor() << std::endl;
pluginMap.Add(plugin->GetDescriptor(), _pluginCount);
_pluginVector.push_back(plugin);
_pluginCount++;
}
private:
HashTable<std::string, unsigned> pluginMap;
std::vector<BasePlugin *> _pluginVector;
unsigned _pluginCount;
};
} // namespace http
#endif // REQUEST_HANDLER_H