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API calls now get parsed through a grammar using boost::spirit::qi

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This commit is contained in:
DennisOSRM 2012-09-12 15:01:37 +02:00
parent f575da2ca8
commit 1ec49c3914
8 changed files with 194 additions and 141 deletions
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18
Plugins/HelloWorldPlugin.h
View File

@ -25,16 +25,14 @@ public:
reply.status = http::Reply::ok;
reply.content.append("<html><head><title>Hello World Demonstration Document</title></head><body><h1>Hello, World!</h1>");
std::stringstream content;
content << "Number of parameters: " << routeParameters.parameters.size() << "<br>";
for(unsigned i = 0; i < routeParameters.parameters.size(); i++) {
content << routeParameters.parameters[i] << "<br>";
}
content << "Number Of Options: " << routeParameters.options.Size() << "<br>";
RouteParameters::OptionsIterator optionsIT = routeParameters.options.begin();
for(;optionsIT != routeParameters.options.end(); optionsIT++) {
content << "param = " << optionsIT->first << ": ";
content << "option = " << optionsIT->second << "<br>";
}
content << "Number of locations: " << routeParameters.coordinates.size() << "<br>\n";
for(unsigned i = 0; i < routeParameters.coordinates.size(); ++i) {
content << " [" << i << "] " << routeParameters.coordinates[i].lat/100000. << "," << routeParameters.coordinates[i].lon/100000. << "<br>\n";
}
content << "Number of hints: " << routeParameters.hints.size() << "<br>\n";
for(unsigned i = 0; i < routeParameters.hints.size(); ++i) {
content << " [" << i << "] " << routeParameters.hints[i] << "<br>\n";
}
reply.content.append(content.str());
reply.content.append("</body></html>");
}

20
Plugins/LocatePlugin.h
View File

@ -41,21 +41,11 @@ public:
std::string GetVersionString() const { return std::string("0.3 (DL)"); }
void HandleRequest(const RouteParameters & routeParameters, http::Reply& reply) {
//check number of parameters
if(!routeParameters.viaPoints.size()) {
if(!routeParameters.coordinates.size()) {
reply = http::Reply::stockReply(http::Reply::badRequest);
return;
}
std::vector<std::string> textCoord;
stringSplit (routeParameters.viaPoints[0], ',', textCoord);
if(textCoord.size() != 2) {
reply = http::Reply::stockReply(http::Reply::badRequest);
return;
}
int lat = 100000.*atof(textCoord[0].c_str());
int lon = 100000.*atof(textCoord[1].c_str());
_Coordinate myCoordinate(lat, lon);
if(false == checkCoord(myCoordinate)) {
if(false == checkCoord(routeParameters.coordinates[0])) {
reply = http::Reply::stockReply(http::Reply::badRequest);
return;
}
@ -65,15 +55,15 @@ public:
std::string JSONParameter, tmp;
//json
JSONParameter = routeParameters.options.Find("jsonp");
if("" != JSONParameter) {
// JSONParameter = routeParameters.options.Find("jsonp");
if("" != routeParameters.jsonpParameter) {
reply.content += JSONParameter;
reply.content += "(";
}
reply.status = http::Reply::ok;
reply.content += ("{");
reply.content += ("\"version\":0.3,");
if(!nodeHelpDesk->FindNearestNodeCoordForLatLon(myCoordinate, result)) {
if(!nodeHelpDesk->FindNearestNodeCoordForLatLon(routeParameters.coordinates[0], result)) {
reply.content += ("\"status\":207,");
reply.content += ("\"mapped_coordinate\":[]");
} else {

29
Plugins/NearestPlugin.h
View File

@ -29,7 +29,6 @@ or see http://www.gnu.org/licenses/agpl.txt.
#include "../Server/DataStructures/QueryObjectsStorage.h"
#include "../DataStructures/NodeInformationHelpDesk.h"
#include "../DataStructures/HashTable.h"
#include "../Util/StringUtil.h"
/*
@ -47,43 +46,25 @@ public:
std::string GetVersionString() const { return std::string("0.3 (DL)"); }
void HandleRequest(const RouteParameters & routeParameters, http::Reply& reply) {
//check number of parameters
if(!routeParameters.viaPoints.size()) {
if(!routeParameters.coordinates.size()) {
reply = http::Reply::stockReply(http::Reply::badRequest);
return;
}
std::vector<std::string> textCoord;
stringSplit (routeParameters.viaPoints[0], ',', textCoord);
if(textCoord.size() != 2) {
reply = http::Reply::stockReply(http::Reply::badRequest);
return;
}
int lat = 100000.*atof(textCoord[0].c_str());
int lon = 100000.*atof(textCoord[1].c_str());
_Coordinate myCoordinate(lat, lon);
if(false == checkCoord(myCoordinate)) {
if(false == checkCoord(routeParameters.coordinates[0])) {
reply = http::Reply::stockReply(http::Reply::badRequest);
return;
}
unsigned zoomLevel = 18;
if(routeParameters.options.Find("z") != ""){
zoomLevel = atoi(routeParameters.options.Find("z").c_str());
if(18 < zoomLevel)
zoomLevel = 18;
}
//query to helpdesk
PhantomNode result;
nodeHelpDesk->FindPhantomNodeForCoordinate(myCoordinate, result, zoomLevel);
nodeHelpDesk->FindPhantomNodeForCoordinate(routeParameters.coordinates[0], result, routeParameters.zoomLevel);
std::string tmp;
std::string JSONParameter;
//json
JSONParameter = routeParameters.options.Find("jsonp");
if("" != JSONParameter) {
reply.content += JSONParameter;
if("" != routeParameters.jsonpParameter) {
reply.content += routeParameters.jsonpParameter;
reply.content += "(";
}

67
Plugins/RouteParameters.h
View File

@ -23,14 +23,73 @@ or see http://www.gnu.org/licenses/agpl.txt.
#include <string>
#include <vector>
#include "../DataStructures/HashTable.h"
#include <boost/fusion/sequence/intrinsic.hpp>
#include "../DataStructures/Coordinate.h"
struct RouteParameters {
RouteParameters() : zoomLevel(18), printInstructions(false), geometry(true), compression(true), checkSum(-1) {}
short zoomLevel;
bool printInstructions;
bool geometry;
bool compression;
int checkSum;
std::string service;
std::string outputFormat;
std::string jsonpParameter;
std::string language;
std::vector<std::string> hints;
std::vector<std::string> parameters;
std::vector<std::string> viaPoints;
HashTable<std::string, std::string> options;
std::vector<_Coordinate> coordinates;
typedef HashTable<std::string, std::string>::MyIterator OptionsIterator;
void setZoomLevel(const short i) {
if (18 > i && 0 < i)
zoomLevel = i;
}
void setChecksum(const int c) {
checkSum = c;
}
void setInstructionFlag(const bool b) {
printInstructions = b;
}
void printService( const std::string & s) {
service = s;
}
void setOutputFormat(const std::string & s) {
outputFormat = s;
}
void setJSONpParameter(const std::string & s) {
jsonpParameter = s;
}
void addHint(const std::string & s) {
hints.push_back(s);
}
void setLanguage(const std::string & s) {
language = s;
}
void setGeometryFlag(const bool b) {
geometry = b;
}
void setCompressionFlag(const bool b) {
compression = b;
}
void addCoordinate(boost::fusion::vector < double, double > arg_) {
int lat = 100000.*boost::fusion::at_c < 0 > (arg_);
int lon = 100000.*boost::fusion::at_c < 1 > (arg_);
_Coordinate myCoordinate(lat, lon);
coordinates.push_back(_Coordinate(lat, lon));
}
};

5
Plugins/TimestampPlugin.h
View File

@ -37,9 +37,8 @@ public:
std::string JSONParameter;
//json
JSONParameter = routeParameters.options.Find("jsonp");
if("" != JSONParameter) {
reply.content += JSONParameter;
if("" != routeParameters.jsonpParameter) {
reply.content += routeParameters.jsonpParameter;
reply.content += "(";
}

57
Plugins/ViaRoutePlugin.h
View File

@ -74,37 +74,21 @@ public:
std::string GetVersionString() const { return std::string("0.3 (DL)"); }
void HandleRequest(const RouteParameters & routeParameters, http::Reply& reply) {
//check number of parameters
if( 2 > routeParameters.viaPoints.size() ) {
if( 2 > routeParameters.coordinates.size() ) {
reply = http::Reply::stockReply(http::Reply::badRequest);
return;
}
unsigned zoomLevel = 18;
if(routeParameters.options.Find("z") != ""){
zoomLevel = atoi(routeParameters.options.Find("z").c_str());
if(18 < zoomLevel)
zoomLevel = 18;
}
RawRouteData rawRoute;
rawRoute.checkSum = nodeHelpDesk->GetCheckSum();
bool checksumOK = ((unsigned)atoi(routeParameters.options.Find("checksum").c_str()) == rawRoute.checkSum);
bool checksumOK = (routeParameters.checkSum == rawRoute.checkSum);
std::vector<std::string> textCoord;
for(unsigned i = 0; i < routeParameters.viaPoints.size(); ++i) {
textCoord.resize(0);
stringSplit (routeParameters.viaPoints[i], ',', textCoord);
if(textCoord.size() != 2) {
for(unsigned i = 0; i < routeParameters.coordinates.size(); ++i) {
if(false == checkCoord(routeParameters.coordinates[i])) {
reply = http::Reply::stockReply(http::Reply::badRequest);
return;
}
int vialat = static_cast<int>(100000.*atof(textCoord[0].c_str()));
int vialon = static_cast<int>(100000.*atof(textCoord[1].c_str()));
_Coordinate viaCoord(vialat, vialon);
if(false == checkCoord(viaCoord)) {
reply = http::Reply::stockReply(http::Reply::badRequest);
return;
}
rawRoute.rawViaNodeCoordinates.push_back(viaCoord);
rawRoute.rawViaNodeCoordinates.push_back(routeParameters.coordinates[i]);
}
std::vector<PhantomNode> phantomNodeVector(rawRoute.rawViaNodeCoordinates.size());
for(unsigned i = 0; i < rawRoute.rawViaNodeCoordinates.size(); ++i) {
@ -117,9 +101,8 @@ public:
}
}
// INFO("Brute force lookup of coordinate " << i);
searchEngine->FindPhantomNodeForCoordinate( rawRoute.rawViaNodeCoordinates[i], phantomNodeVector[i], zoomLevel);
searchEngine->FindPhantomNodeForCoordinate( rawRoute.rawViaNodeCoordinates[i], phantomNodeVector[i], routeParameters.zoomLevel);
}
//unsigned distance = 0;
for(unsigned i = 0; i < phantomNodeVector.size()-1; ++i) {
PhantomNodes segmentPhantomNodes;
@ -143,24 +126,18 @@ public:
//TODO: Move to member as smart pointer
BaseDescriptor<SearchEngine<QueryEdge::EdgeData, StaticGraph<QueryEdge::EdgeData> > > * desc;
std::string JSONParameter = routeParameters.options.Find("jsonp");
if("" != JSONParameter) {
reply.content += JSONParameter;
if("" != routeParameters.jsonpParameter) {
reply.content += routeParameters.jsonpParameter;
reply.content += "(";
}
_DescriptorConfig descriptorConfig;
unsigned descriptorType = descriptorTable[routeParameters.options.Find("output")];
descriptorConfig.z = zoomLevel;
if(routeParameters.options.Find("instructions") == "false") {
descriptorConfig.instructions = false;
}
if(routeParameters.options.Find("geometry") == "false" ) {
descriptorConfig.geometry = false;
}
if("cmp" == routeParameters.options.Find("no") || "cmp6" == routeParameters.options.Find("no") ) {
descriptorConfig.encodeGeometry = false;
}
unsigned descriptorType = descriptorTable[routeParameters.outputFormat];
descriptorConfig.z = routeParameters.zoomLevel;
descriptorConfig.instructions = routeParameters.printInstructions;
descriptorConfig.geometry = routeParameters.geometry;
descriptorConfig.encodeGeometry = routeParameters.compression;
switch(descriptorType){
case 0:
desc = new JSONDescriptor<SearchEngine<QueryEdge::EdgeData, StaticGraph<QueryEdge::EdgeData> > >();
@ -185,7 +162,7 @@ public:
desc->SetConfig(descriptorConfig);
desc->Run(reply, rawRoute, phantomNodes, *searchEngine);
if("" != JSONParameter) {
if("" != routeParameters.jsonpParameter) {
reply.content += ")\n";
}
reply.headers.resize(3);
@ -195,7 +172,7 @@ public:
reply.headers[0].value = tmp;
switch(descriptorType){
case 0:
if("" != JSONParameter){
if("" != routeParameters.jsonpParameter){
reply.headers[1].name = "Content-Type";
reply.headers[1].value = "text/javascript";
reply.headers[2].name = "Content-Disposition";
@ -216,7 +193,7 @@ public:
break;
default:
if("" != JSONParameter){
if("" != routeParameters.jsonpParameter){
reply.headers[1].name = "Content-Type";
reply.headers[1].value = "text/javascript";
reply.headers[2].name = "Content-Disposition";

59
Server/APIGrammar.h Normal file
View File

@ -0,0 +1,59 @@
/*
open source routing machine
Copyright (C) Dennis Luxen, others 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 APIGRAMMAR_H_
#define APIGRAMMAR_H_
#include <boost/bind.hpp>
#include <boost/spirit/include/qi.hpp>
#include <boost/spirit/include/qi_action.hpp>
namespace qi = boost::spirit::qi;
template <typename Iterator, class HandlerT>
struct APIGrammar : qi::grammar<Iterator> {
APIGrammar(HandlerT * h) : APIGrammar::base_type(api_call), handler(h) {
api_call = qi::lit('/') >> string[boost::bind(&HandlerT::printService, handler, ::_1)] >> ('?') >> query;
query = (*(zoom | output | jsonp | checksum | location | hint | compressed_geometry | language | instruction) ) ;
zoom = (-qi::lit('&')) >> qi::lit('z') >> '=' >> qi::short_[boost::bind(&HandlerT::setZoomLevel, handler, ::_1)];
output = (-qi::lit('&')) >> qi::lit("output") >> '=' >> string[boost::bind(&HandlerT::setOutputFormat, handler, ::_1)];
jsonp = (-qi::lit('&')) >> qi::lit("jsonp") >> '=' >> stringwithDot[boost::bind(&HandlerT::setJSONpParameter, handler, ::_1)];
checksum = (-qi::lit('&')) >> qi::lit("checksum") >> '=' >> qi::int_[boost::bind(&HandlerT::setChecksum, handler, ::_1)];
instruction = (-qi::lit('&')) >> qi::lit("instructions") >> '=' >> qi::bool_[boost::bind(&HandlerT::setInstructionFlag, handler, ::_1)];
geometry = (-qi::lit('&')) >> qi::lit("geometry") >> '=' >> qi::bool_[boost::bind(&HandlerT::setGeometryFlag, handler, ::_1)];
cmp = (-qi::lit('&')) >> qi::lit("compression") >> '=' >> qi::bool_[boost::bind(&HandlerT::setCompressionFlag, handler, ::_1)];
location = (-qi::lit('&')) >> qi::lit("loc") >> '=' >> (qi::double_ >> qi::lit(',') >> qi::double_)[boost::bind(&HandlerT::addCoordinate, handler, ::_1)];
hint = (-qi::lit('&')) >> qi::lit("hint") >> '=' >> stringwithDot[boost::bind(&HandlerT::addHint, handler, ::_1)];
language = (-qi::lit('&')) >> qi::lit("hl") >> '=' >> string[boost::bind(&HandlerT::setLanguage, handler, ::_1)];
string = +(qi::char_("a-zA-Z"));
stringwithDot = +(qi::char_("a-zA-Z0-9_.-"));
}
qi::rule<Iterator> api_call, query;
qi::rule<Iterator, std::string()> service, zoom, output, string, jsonp, checksum, location, hint, compressed_geometry, stringwithDot, language, instruction, geometry, cmp;
HandlerT * handler;
};
#endif /* APIGRAMMAR_H_ */

80
Server/RequestHandler.h
View File

@ -28,6 +28,7 @@ or see http://www.gnu.org/licenses/agpl.txt.
#include <boost/lexical_cast.hpp>
#include <boost/noncopyable.hpp>
#include "APIGrammar.h"
#include "BasicDatastructures.h"
#include "../DataStructures/HashTable.h"
#include "../Plugins/BasePlugin.h"
@ -51,56 +52,45 @@ public:
void handle_request(const Request& req, Reply& rep){
//parse command
std::string request(req.uri);
time_t ltime;
struct tm *Tm;
ltime=time(NULL);
Tm=localtime(&ltime);
{ //This block logs the current request to std out. should be moved to a logging component
time_t ltime;
struct tm *Tm;
INFO((Tm->tm_mday < 10 ? "0" : "" ) << Tm->tm_mday << "-" << (Tm->tm_mon+1 < 10 ? "0" : "" ) << (Tm->tm_mon+1) << "-" << 1900+Tm->tm_year << " " << (Tm->tm_hour < 10 ? "0" : "" ) << Tm->tm_hour << ":" << (Tm->tm_min < 10 ? "0" : "" ) << Tm->tm_min << ":" << (Tm->tm_sec < 10 ? "0" : "" ) << Tm->tm_sec << " " <<
req.endpoint.to_string() << " " << req.referrer << ( 0 == req.referrer.length() ? "- " :" ") << req.agent << ( 0 == req.agent.length() ? "- " :" ") << request );
std::size_t firstAmpPosition = request.find_first_of("?");
//DEBUG("[debug] looking for handler for command: " << command);
ltime=time(NULL);
Tm=localtime(&ltime);
INFO((Tm->tm_mday < 10 ? "0" : "" ) << Tm->tm_mday << "-" << (Tm->tm_mon+1 < 10 ? "0" : "" ) << (Tm->tm_mon+1) << "-" << 1900+Tm->tm_year << " " << (Tm->tm_hour < 10 ? "0" : "" ) << Tm->tm_hour << ":" << (Tm->tm_min < 10 ? "0" : "" ) << Tm->tm_min << ":" << (Tm->tm_sec < 10 ? "0" : "" ) << Tm->tm_sec << " " <<
req.endpoint.to_string() << " " << req.referrer << ( 0 == req.referrer.length() ? "- " :" ") << req.agent << ( 0 == req.agent.length() ? "- " :" ") << req.uri );
}
try {
std::string command = request.substr(1,firstAmpPosition-1);
if(pluginMap.Holds(command)) {
RouteParameters routeParameters;
APIGrammar<std::string::iterator, RouteParameters> apiParser(&routeParameters);
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 && "hint" != p)
std::transform(o.begin(), o.end(), o.begin(), (int(*)(int)) std::tolower);
if("loc" == p) {
if(25 >= routeParameters.viaPoints.size()) {
routeParameters.viaPoints.push_back(o);
}
} else if("hint" == p) {
routeParameters.hints.resize(routeParameters.viaPoints.size());
if(routeParameters.viaPoints.size())
routeParameters.hints.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;
std::string::iterator it = request.begin();
bool result = boost::spirit::qi::parse(it, request.end(), apiParser); // returns true if successful
if (!result || (it != request.end()) ) {
rep = http::Reply::stockReply(http::Reply::badRequest);
std::stringstream content;
int position = std::distance(request.begin(), it);
content << "Input seems to be malformed close to position " << position << "<br>";
content << "<pre>";
content << req.uri << "<br>";
for(unsigned i = 0, end = std::distance(request.begin(), it); i < end; ++i)
content << "&nbsp;";
content << "^" << "<br>";
content << "</pre>";
rep.content += content.str();
} else {
rep = Reply::stockReply(Reply::badRequest);
//Finished parsing, lets call the right plugin to handle the request
if(pluginMap.Holds(routeParameters.service)) {
rep.status = Reply::ok;
_pluginVector[pluginMap.Find(routeParameters.service)]->HandleRequest(routeParameters, rep );
} else {
rep = Reply::stockReply(Reply::badRequest);
}
return;
}
return;
} catch(std::exception& e) {
rep = Reply::stockReply(Reply::internalServerError);
std::cerr << "[server error] code: " << e.what() << ", uri: " << req.uri << std::endl;
@ -112,7 +102,7 @@ public:
std::cout << "[handler] registering plugin " << plugin->GetDescriptor() << std::endl;
pluginMap.Add(plugin->GetDescriptor(), _pluginCount);
_pluginVector.push_back(plugin);
_pluginCount++;
++_pluginCount;
}
private: