vcs.maemo.org Git - situare/blob - src/routing/routingservice.cpp

   1 /*
   2    Situare - A location system for Facebook
   3    Copyright (C) 2010  Ixonos Plc. Authors:
   4
   5       Henri Lampela - henri.lampela@ixonos.com
   6       Sami Rämö - sami.ramo@ixonos.com
   7
   8    Situare is free software; you can redistribute it and/or
   9    modify it under the terms of the GNU General Public License
  10    version 2 as published by the Free Software Foundation.
  11
  12    Situare is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with Situare; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  20    USA.
  21 */
  22
  23 #include "parser.h"
  24
  25 #include <QCryptographicHash>
  26 #include <QDebug>
  27 #include <QNetworkReply>
  28 #include <QStringList>
  29 #include <QtGlobal>
  30
  31 #if defined(Q_WS_MAEMO_5) & defined(ARMEL)
  32 #include <QDBusInterface>
  33 #include <QDBusMessage>
  34 #endif
  35
  36 #include "coordinates/geocoordinate.h"
  37 #include "../error.h"
  38 #include "location.h"
  39 #include "network/networkaccessmanager.h"
  40 #include "route.h"
  41 #include "routesegment.h"
  42
  43 #include "routingservice.h"
  44
  45 // defines for IMEI retrieval via dbus
  46 #define SIM_DBUS_SERVICE  "com.nokia.phone.SIM"
  47 #define SIM_DBUS_PATH     "/com/nokia/phone/SIM/security"
  48 #define SIM_DBUS_IFACE    "Phone.Sim.Security"
  49 #define SIM_IMEI_REQ      "get_imei"
  50
  51 const int NO_ERROR = 0;
  52
  53 // cloudmade
  54 const QString CLOUDMADE_AUTH_PART = "http://auth.cloudmade.com/token/";
  55 const QString CLOUDMADE_API_KEY = "0cea0072adbf42ce823f4c78b974f12d";
  56
  57 RoutingService::RoutingService(QObject *parent)
  58         : QObject(parent)
  59 {
  60     qDebug() << __PRETTY_FUNCTION__;
  61
  62     m_pendingRequest.clear();
  63     m_token.clear();
  64
  65     m_networkManager = new NetworkAccessManager(this);
  66     connect(m_networkManager, SIGNAL(finished(QNetworkReply*)),
  67             this, SLOT(requestFinished(QNetworkReply*)), Qt::QueuedConnection);
  68
  69 }
  70
  71 void RoutingService::parseRouteData(const QByteArray &jsonReply)
  72 {
  73     qDebug() << __PRETTY_FUNCTION__;
  74
  75     QJson::Parser parser;
  76     bool ok;
  77     QVariantMap result = parser.parse (jsonReply, &ok).toMap();
  78     if (!ok) {
  79         emit error(ErrorContext::SITUARE, SituareError::ERROR_ROUTING_FAILED);
  80         return;
  81     } else if(result.value("status").toInt() == NO_ERROR) {
  82         QVariant routeSummary = result.value("route_summary");
  83         QMap<QString, QVariant> routeSummaryMap = routeSummary.toMap();
  84
  85         Route route;
  86         route.setEndPointName(routeSummaryMap["end_point"].toString());
  87         route.setStartPointName(routeSummaryMap["start_point"].toString());
  88         route.setTotalDistance(routeSummaryMap["total_distance"].toInt());
  89         route.setTotalTime(routeSummaryMap["total_time"].toInt());
  90
  91         foreach(QVariant routeGeometry, result["route_geometry"].toList()) {
  92             QStringList list = routeGeometry.toStringList();
  93             route.appendGeometryPoint(GeoCoordinate(list.at(0).toDouble(), list.at(1).toDouble()));
  94         }
  95
  96         foreach(QVariant routeInstructions, result["route_instructions"].toList()) {
  97             QStringList list = routeInstructions.toStringList();
  98             RouteSegment segment;
  99             segment.setInstruction(list.at(0));
 100             segment.setLength(list.at(1).toDouble());
 101             segment.setPositionIndex(list.at(2).toInt());
 102             segment.setTime(list.at(3).toInt());
 103             segment.setLengthCaption(list.at(4));
 104             segment.setEarthDirection(list.at(5));
 105             segment.setAzimuth(list.at(6).toDouble());
 106             if (list.count() == 9) {
 107                 segment.setTurnType(list.at(7));
 108                 segment.setTurnAngle(list.at(8).toDouble());
 109             }
 110             route.appendSegment(segment);
 111         }
 112
 113         emit routeParsed(route);
 114     } else {
 115         emit error(ErrorContext::SITUARE, SituareError::ERROR_ROUTING_FAILED);
 116         qCritical() << __PRETTY_FUNCTION__ << "routing failed, json status_message:"
 117                                            << result.value("status_message").toString();
 118     }
 119 }
 120
 121 void RoutingService::requestAuthorizationToken()
 122 {
 123     qDebug() << __PRETTY_FUNCTION__;
 124
 125     // create token request of format: http://auth.cloudmade.com/token/APIKEY?userid=UserID
 126     // where APIKEY is our application specific key and userID is md5 hashed value of IMEI code
 127     QString url = CLOUDMADE_AUTH_PART;
 128     url.append(CLOUDMADE_API_KEY);
 129     QString uidPart = "?userid=";
 130     QByteArray rawData;
 131
 132 #if defined(Q_WS_MAEMO_5) & defined(ARMEL)
 133     // get the device IMEI code
 134     QDBusInterface interface(SIM_DBUS_SERVICE, SIM_DBUS_PATH, SIM_DBUS_IFACE,
 135                              QDBusConnection::systemBus());
 136
 137     QDBusMessage reply = interface.call(SIM_IMEI_REQ);
 138     if (reply.type() == QDBusMessage::ErrorMessage)
 139         qDebug() << reply.errorMessage();
 140     else {
 141         QList<QVariant> args = reply.arguments();
 142         qDebug() << QString("Phone's IMEI: %1").arg(args.at(0).toString());
 143         rawData = args.at(0).toByteArray();
 144     }
 145 #else
 146     // for desktop we need to use login name
 147     rawData.append(system("whoami"));
 148 #endif
 149
 150     QCryptographicHash crypto(QCryptographicHash::Md5);
 151     crypto.addData(rawData);
 152     uidPart.append(crypto.result().toHex());
 153
 154     url.append(uidPart);
 155     sendRequest(url);
 156 }
 157
 158 void RoutingService::requestFinished(QNetworkReply *reply)
 159 {
 160     qDebug() << __PRETTY_FUNCTION__;
 161
 162     QByteArray replyArray = reply->readAll();
 163
 164     if (reply->error()) {
 165         emit error(ErrorContext::NETWORK, reply->error());
 166     } else if(reply->url().toString().contains(CLOUDMADE_AUTH_PART)) {
 167         m_token = replyArray;
 168         m_pendingRequest.append(m_token);
 169         sendRequest(m_pendingRequest);
 170         m_pendingRequest.clear();
 171     } else {
 172         parseRouteData(replyArray);
 173     }
 174
 175     reply->deleteLater();
 176 }
 177
 178 void RoutingService::requestRoute(const GeoCoordinate &from, const GeoCoordinate &to)
 179 {
 180     qDebug() << __PRETTY_FUNCTION__;
 181
 182     QString url = "http://routes.cloudmade.com/";
 183     url.append(CLOUDMADE_API_KEY);
 184     url.append("/api/0.3/");
 185     url.append(QString::number(from.latitude()) + "," + QString::number(from.longitude()) + ",");
 186     url.append(QString::number(to.latitude()) + "," + QString::number(to.longitude()));
 187     url.append("/car/fastest.js?lang=en&units=km&token=");
 188
 189     if(m_token.isEmpty()) {
 190         m_pendingRequest.append(url);
 191         requestAuthorizationToken();
 192     } else {
 193         url.append(m_token);
 194         sendRequest(QUrl(url));
 195     }
 196 }
 197
 198 void RoutingService::sendRequest(const QUrl &url)
 199 {
 200     qDebug() << __PRETTY_FUNCTION__;
 201
 202     QNetworkRequest request;
 203
 204     request.setUrl(url);
 205     request.setAttribute(QNetworkRequest::CacheSaveControlAttribute, false);
 206
 207     QByteArray ba;
 208     m_networkManager->post(request, ba, false);
 209 }