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 <QDebug>
  24 #include <QtGlobal>
  25 #include <QStringList>
  26 #include <QNetworkReply>
  27 #include <QCryptographicHash>
  28
  29 #if defined(Q_WS_MAEMO_5) & defined(ARMEL)
  30 #include <QDBusInterface>
  31 #include <QDBusMessage>
  32 #endif
  33
  34 #include "common.h"
  35 #include "coordinates/geocoordinate.h"
  36 #include "network/networkaccessmanager.h"
  37 #include "parser.h"
  38 #include "route.h"
  39 #include "routesegment.h"
  40
  41 #include "routingservice.h"
  42
  43 // defines for IMEI retrieval via dbus
  44 #define SIM_DBUS_SERVICE  "com.nokia.phone.SIM"
  45 #define SIM_DBUS_PATH     "/com/nokia/phone/SIM/security"
  46 #define SIM_DBUS_IFACE    "Phone.Sim.Security"
  47 #define SIM_IMEI_REQ      "get_imei"
  48
  49 const int NO_ERROR = 0;
  50
  51 // cloudmade
  52 const QString CLOUDMADE_AUTH_PART = "http://auth.cloudmade.com/token/";
  53 const QString CLOUDMADE_API_KEY = "0cea0072adbf42ce823f4c78b974f12d";
  54
  55
  56 RoutingService::RoutingService(QObject *parent)
  57         : QObject(parent)
  58 {
  59     qDebug() << __PRETTY_FUNCTION__;
  60
  61     m_pendingRequest.clear();
  62     m_token.clear();
  63
  64     m_networkManager = new NetworkAccessManager(this);
  65     connect(m_networkManager, SIGNAL(finished(QNetworkReply*)),
  66             this, SLOT(requestFinished(QNetworkReply*)), Qt::QueuedConnection);
  67
  68 }
  69
  70 void RoutingService::parseRouteData(const QByteArray &jsonReply)
  71 {
  72     qDebug() << __PRETTY_FUNCTION__;
  73
  74     QJson::Parser parser;
  75     bool ok;
  76     QVariantMap result = parser.parse (jsonReply, &ok).toMap();
  77     if (!ok) {
  78         emit error(ErrorContext::SITUARE, SituareError::INVALID_JSON);
  79         return;
  80     } else {
  81         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(),
  94                                                         list.at(1).toDouble()));
  95             }
  96
  97             foreach(QVariant routeInstructions, result["route_instructions"].toList()) {
  98                 QStringList list = routeInstructions.toStringList();
  99                 RouteSegment segment;
 100                 segment.setInstruction(list.at(0));
 101                 segment.setLength(list.at(1).toDouble());
 102                 segment.setPositionIndex(list.at(2).toInt());
 103                 segment.setTime(list.at(3).toInt());
 104                 segment.setLengthCaption(list.at(4));
 105                 segment.setEarthDirection(list.at(5));
 106                 segment.setAzimuth(list.at(6).toDouble());
 107                 if (list.count() == 8) {
 108                     segment.setTurnType(list.at(7));
 109                     segment.setTurnAngle(list.at(8).toDouble());
 110                 }
 111                 route.appendSegment(segment);
 112             }
 113
 114             emit routeParsed(route);
 115         }
 116     }
 117 }
 118
 119 void RoutingService::requestAuthorizationToken()
 120 {
 121     qDebug() << __PRETTY_FUNCTION__;
 122
 123     // create token request of format: http://auth.cloudmade.com/token/APIKEY?userid=UserID
 124     // where APIKEY is our application specific key and userID is md5 hashed value of IMEI code
 125     QString url = CLOUDMADE_AUTH_PART;
 126     url.append(CLOUDMADE_API_KEY);
 127     QString uidPart = "?userid=";
 128     QByteArray rawData;
 129
 130 #if defined(Q_WS_MAEMO_5) & defined(ARMEL)
 131     // get the device IMEI code
 132     QDBusInterface interface(SIM_DBUS_SERVICE, SIM_DBUS_PATH, SIM_DBUS_IFACE,
 133                              QDBusConnection::systemBus());
 134
 135     QDBusMessage reply = interface.call(SIM_IMEI_REQ);
 136     if (reply.type() == QDBusMessage::ErrorMessage)
 137         qDebug() << reply.errorMessage();
 138     else {
 139         QList<QVariant> args = reply.arguments();
 140         qDebug() << QString("Phone's IMEI: %1").arg(args.at(0).toString());
 141         rawData = args.at(0).toByteArray();
 142     }
 143 #else
 144     // for desktop we need to use login name
 145     rawData.append(system("whoami"));
 146 #endif
 147
 148     QCryptographicHash crypto(QCryptographicHash::Md5);
 149     crypto.addData(rawData);
 150     uidPart.append(crypto.result().toHex());
 151
 152     url.append(uidPart);
 153     sendRequest(url);
 154 }
 155
 156 void RoutingService::requestFinished(QNetworkReply *reply)
 157 {
 158     qDebug() << __PRETTY_FUNCTION__;
 159
 160     if (m_currentRequests.contains(reply)) {
 161
 162         QByteArray replyArray = reply->readAll();
 163         qDebug() << "Reply from: " << reply->url() << "reply " << replyArray;
 164
 165         if (reply->error()) {
 166             emit error(ErrorContext::NETWORK, reply->error());
 167         } else if(reply->url().toString().contains(CLOUDMADE_AUTH_PART)) {
 168             m_token = replyArray;
 169             m_pendingRequest.append(m_token);
 170             sendRequest(m_pendingRequest);
 171             m_pendingRequest.clear();
 172         } else {
 173             parseRouteData(replyArray);
 174         }
 175
 176         m_currentRequests.removeAll(reply);
 177         reply->deleteLater();
 178     }
 179 }
 180
 181 void RoutingService::requestRoute(GeoCoordinate from, GeoCoordinate to)
 182 {
 183     qDebug() << __PRETTY_FUNCTION__;
 184
 185     QString url = "http://routes.cloudmade.com/";
 186     url.append(CLOUDMADE_API_KEY);
 187     url.append("/api/0.3/");
 188     url.append(QString::number(from.latitude()) + "," + QString::number(from.longitude()) + ",");
 189     url.append(QString::number(to.latitude()) + "," + QString::number(to.longitude()));
 190     url.append("/car/fastest.js?lang=en&units=km&token=");
 191
 192     if(m_token.isEmpty()) {
 193         m_pendingRequest.append(url);
 194         requestAuthorizationToken();
 195     } else {
 196         url.append(m_token);
 197         sendRequest(QUrl(url));
 198     }
 199 }
 200
 201 void RoutingService::sendRequest(const QUrl &url)
 202 {
 203     qDebug() << __PRETTY_FUNCTION__;
 204
 205     QNetworkRequest request;
 206
 207     request.setUrl(url);
 208     request.setAttribute(QNetworkRequest::CacheSaveControlAttribute, false);
 209
 210     QByteArray ba;
 211     QNetworkReply *reply = m_networkManager->post(request, ba, false);
 212
 213     m_currentRequests.append(reply);
 214 }