git.maemo.org Git - situare/blob - src/situareservice/situareservice.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
   7    Situare is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU General Public License
   9    version 2 as published by the Free Software Foundation.
  10
  11    Situare is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with Situare; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  19    USA.
  20 */
  21
  22 #include <QtAlgorithms>
  23 #include <QDebug>
  24 #include <QtGlobal>
  25 #include <QStringList>
  26 #include <QPixmap>
  27 #include <QNetworkReply>
  28 #include "situareservice.h"
  29 #include "situarecommon.h"
  30 #include "parser.h"
  31 #include "ui/avatarimage.h"
  32 #include "engine/networkaccessmanager.h"
  33
  34 SituareService::SituareService(QObject *parent)
  35         : QObject(parent),
  36         m_user(0)
  37 {
  38     qDebug() << __PRETTY_FUNCTION__;
  39
  40     m_networkManager = new NetworkAccessManager(this);
  41     connect(m_networkManager, SIGNAL(finished(QNetworkReply*)), SLOT(requestFinished(QNetworkReply*)));
  42
  43     m_imageFetcher = new ImageFetcher(new NetworkAccessManager(this), this);
  44     connect(this, SIGNAL(fetchImage(QUrl)), m_imageFetcher, SLOT(fetchImage(QUrl)));
  45     connect(m_imageFetcher, SIGNAL(imageReceived(QUrl,QPixmap)), this,
  46             SLOT(imageReceived(QUrl, QPixmap)));
  47     connect(m_imageFetcher, SIGNAL(error(QString)), this, SIGNAL(error(QString)));
  48 }
  49
  50 SituareService::~SituareService()
  51 {
  52     qDebug() << __PRETTY_FUNCTION__;
  53
  54     delete m_networkManager;
  55     m_networkManager = 0;
  56     if(m_user) {
  57         delete m_user;
  58         m_user = 0;
  59     }
  60     delete m_imageFetcher;
  61     m_imageFetcher = 0;
  62
  63     qDeleteAll(m_friendsList.begin(), m_friendsList.end());
  64     m_friendsList.clear();
  65 }
  66
  67 void SituareService::fetchLocations()
  68 {
  69     qDebug() << __PRETTY_FUNCTION__;
  70
  71     QString cookie = formCookie(API_KEY, m_credentials.expires(), m_credentials.userID(),
  72                                 m_credentials.sessionKey(), m_credentials.sessionSecret(),
  73                                 m_credentials.sig(), EN_LOCALE);
  74
  75     QUrl url = formUrl(SITUARE_URL, GET_LOCATIONS);
  76     sendRequest(url, COOKIE, cookie);
  77 }
  78
  79 void SituareService::reverseGeo(const QPointF &coordinates)
  80 {
  81     qDebug() << __PRETTY_FUNCTION__;
  82
  83     QString cookie = formCookie(API_KEY, m_credentials.expires(),m_credentials.userID(),
  84                                 m_credentials.sessionKey(), m_credentials.sessionSecret(),
  85                                 m_credentials.sig(), EN_LOCALE);
  86
  87     QString urlParameters = formUrlParameters(coordinates);
  88     QUrl url = formUrl(SITUARE_URL, REVERSE_GEO, urlParameters);
  89
  90     sendRequest(url, COOKIE, cookie);
  91 }
  92
  93 void SituareService::updateLocation(const QPointF &coordinates, const QString &status,
  94                                     const bool &publish)
  95 {
  96     qDebug() << __PRETTY_FUNCTION__;
  97
  98     QString cookie = formCookie(API_KEY, m_credentials.expires(), m_credentials.userID(),
  99                                 m_credentials.sessionKey(), m_credentials.sessionSecret(),
 100                                 m_credentials.sig(), EN_LOCALE);
 101
 102
 103     QString publishValue;
 104     if(publish) {
 105         publishValue = PUBLISH_TRUE;
 106     }
 107     else {
 108         publishValue = PUBLISH_FALSE;
 109     }
 110     QString urlParameters = formUrlParameters(coordinates, status, publishValue);
 111     QUrl url = formUrl(SITUARE_URL, UPDATE_LOCATION, urlParameters);
 112
 113     sendRequest(url, COOKIE, cookie);
 114 }
 115
 116 QString SituareService::formCookie(const QString &apiKeyValue, QString expiresValue,
 117                                    QString userValue, QString sessionKeyValue,
 118                                    QString sessionSecretValue, const QString &signatureValue,
 119                                    const QString &localeValue)
 120 {
 121     qDebug() << __PRETTY_FUNCTION__;
 122
 123     QString cookie;
 124     QString apiKey;
 125     QString user;
 126     QString expires;
 127     QString sessionKey;
 128     QString sessionSecret;
 129     QString locale;
 130     QString variable;
 131     QString signature = EQUAL_MARK;
 132     QStringList variableList;
 133
 134     signature.append(signatureValue);
 135     apiKey.append(apiKeyValue);
 136     apiKey.append(UNDERLINE_MARK);
 137
 138     user.append(USER);
 139     user.append(EQUAL_MARK);
 140     expires.append(EXPIRES);
 141     expires.append(EQUAL_MARK);
 142     sessionKey.append(SESSION_KEY);
 143     sessionKey.append(EQUAL_MARK);
 144     sessionSecret.append(SESSION_SECRET);
 145     sessionSecret.append(EQUAL_MARK);
 146     locale.append(LOCALE);
 147     locale.append(EQUAL_MARK);
 148     locale.append(localeValue);
 149
 150     variableList.append(expires.append(expiresValue.append(BREAK_MARK)));
 151     variableList.append(sessionKey.append(sessionKeyValue.append(BREAK_MARK)));
 152     variableList.append(user.append(userValue).append(BREAK_MARK));
 153     variableList.append(sessionSecret.append(sessionSecretValue.append(BREAK_MARK)));
 154
 155     cookie.append(BREAK_MARK);
 156
 157     foreach(variable, variableList) {
 158         cookie.append(apiKey);
 159         cookie.append(variable);
 160     }
 161     apiKey.remove(UNDERLINE_MARK);
 162     cookie.append(apiKey);
 163     cookie.append(signature);
 164     cookie.append(BREAK_MARK);
 165     cookie.append(locale);
 166
 167     qDebug() << cookie;
 168
 169     return cookie;
 170 }
 171
 172 QUrl SituareService::formUrl(const QString &baseUrl, const QString &phpScript,
 173                              QString urlParameters)
 174 {
 175     qDebug() << __PRETTY_FUNCTION__;
 176     QString urlString;
 177
 178     urlString.append(baseUrl);
 179     urlString.append(phpScript);
 180     if(!urlParameters.isEmpty())
 181         urlString.append(urlParameters);
 182
 183     QUrl url = QUrl(urlString);
 184
 185     qDebug() << url;
 186
 187     return url;
 188 }
 189
 190 QString SituareService::formUrlParameters(const QPointF &coordinates, QString status,
 191                                           QString publish)
 192 {
 193     QString parameters;
 194
 195     parameters.append(QUESTION_MARK);
 196     parameters.append(LATITUDE);
 197     parameters.append(EQUAL_MARK);
 198     parameters.append(QString::number(coordinates.y()));
 199     parameters.append(AMBERSAND_MARK);
 200     parameters.append(LONGTITUDE);
 201     parameters.append(EQUAL_MARK);
 202     parameters.append(QString::number(coordinates.x()));
 203
 204     if(publish.compare(PUBLISH_TRUE) == 0) {
 205         parameters.append(AMBERSAND_MARK);
 206         parameters.append(PUBLISH);
 207         parameters.append(EQUAL_MARK);
 208         parameters.append(PUBLISH_TRUE);
 209     }
 210     else if(publish.compare(PUBLISH_FALSE) == 0) {
 211         parameters.append(AMBERSAND_MARK);
 212         parameters.append(PUBLISH);
 213         parameters.append(EQUAL_MARK);
 214         parameters.append(PUBLISH_FALSE);
 215     }
 216
 217     if(!status.isEmpty()) {
 218         parameters.append(AMBERSAND_MARK);
 219         parameters.append(DATA);
 220         parameters.append(EQUAL_MARK);
 221         parameters.append(status);
 222     }
 223
 224     return parameters;
 225 }
 226
 227 void SituareService::sendRequest(const QUrl &url, const QString &cookieType, const QString &cookie)
 228 {
 229     qDebug() << __PRETTY_FUNCTION__ << "url: " << url;
 230
 231     QNetworkRequest request;
 232
 233     request.setUrl(url);
 234     request.setRawHeader(cookieType.toAscii(), cookie.toUtf8());
 235
 236     QNetworkReply *reply = m_networkManager->get(request);
 237
 238     m_currentRequests.append(reply);
 239 }
 240
 241 void SituareService::requestFinished(QNetworkReply *reply)
 242 {
 243     qDebug() << __PRETTY_FUNCTION__;
 244
 245     QUrl url = reply->url();
 246     qDebug() << "BytesAvailable: " << reply->bytesAvailable();
 247     if (reply->error()) {
 248         qDebug() << reply->errorString();
 249         emit error(reply->errorString());
 250     }
 251     else {
 252         qint64 max = reply->size();
 253         QByteArray replyArray = reply->read(max);
 254         qDebug() << "Reply from: " << url << "reply " << replyArray;
 255         // ToDo: results handling includes Situare's errors
 256         // works like situare's error handling i.e. both lat & lon are missing/wrong
 257         // -> we get only error for wrong lon
 258         if(replyArray == ERROR_LAT.toAscii()) {
 259             qDebug() << "Error: " << ERROR_LAT;
 260             emit error(replyArray);
 261         }
 262         else if(replyArray == ERROR_LON.toAscii()) {
 263             qDebug() << "Error: " << ERROR_LON;
 264             emit error(replyArray);
 265         }
 266         else if(replyArray.contains(ERROR_SESSION.toAscii())) {
 267             qDebug() << "Error: " << ERROR_SESSION;
 268             emit invalidSessionCredentials();
 269         }
 270         else if(replyArray.startsWith(OPENING_BRACE_MARK.toAscii())) {
 271             qDebug() << "JSON string";
 272             parseUserData(replyArray);
 273         }
 274         else if(replyArray == "") {
 275                         if(url.toString().contains(UPDATE_LOCATION.toAscii())) {
 276                 emit updateWasSuccessful();
 277             }
 278             else {
 279                 // session credentials are invalid
 280                 emit invalidSessionCredentials();
 281             }
 282         }
 283         else {
 284             // Street address ready
 285             QString address = QString::fromUtf8(replyArray);
 286             emit reverseGeoReady(address);
 287         }
 288     }
 289     m_currentRequests.removeAll(reply);
 290     reply->deleteLater();
 291 }
 292
 293 void SituareService::credentialsReady(const FacebookCredentials &credentials)
 294 {
 295     qDebug() << __PRETTY_FUNCTION__;
 296
 297     m_credentials = credentials;
 298 }
 299
 300 void SituareService::parseUserData(const QByteArray &jsonReply)
 301 {
 302     qDebug() << __PRETTY_FUNCTION__;
 303
 304     m_visited = 0;
 305     m_nbrOfImages = 0;
 306     m_defaultImage = false;
 307     qDeleteAll(m_friendsList.begin(), m_friendsList.end());
 308     m_friendsList.clear();
 309
 310     if(m_user) {
 311         delete m_user;
 312         m_user = 0;
 313     }
 314
 315     QJson::Parser parser;
 316     bool ok;
 317
 318     QVariantMap result = parser.parse (jsonReply, &ok).toMap();
 319     if (!ok) {
 320
 321         qFatal("An error occurred during parsing");
 322         exit (1);
 323     }
 324
 325     QVariant userVariant = result.value("user");
 326     QMap<QString, QVariant> userMap = userVariant.toMap();
 327
 328     QPointF coordinates(userMap["longitude"].toReal(), userMap["latitude"].toReal());
 329
 330     QUrl imageUrl = userMap["profile_pic"].toUrl();
 331
 332     if(imageUrl.isEmpty()) {
 333         // user doesn't have profile image, so we need to get him a silhouette image
 334         m_defaultImage = true;
 335     }
 336
 337     m_user = new User(userMap["address"].toString(), coordinates, userMap["name"].toString(),
 338                   userMap["note"].toString(), imageUrl, userMap["timestamp"].toString(),
 339                   true, userMap["uid"].toString());
 340
 341     foreach (QVariant friendsVariant, result["friends"].toList()) {
 342       QMap<QString, QVariant> friendMap = friendsVariant.toMap();
 343       QVariant distance = friendMap["distance"];
 344       QMap<QString, QVariant> distanceMap = distance.toMap();
 345
 346       QPointF coordinates(friendMap["longitude"].toReal(), friendMap["latitude"].toReal());
 347
 348       QUrl imageUrl = friendMap["profile_pic"].toUrl();
 349
 350       if(imageUrl.isEmpty()) {
 351           // friend doesn't have profile image, so we need to get him a silhouette image
 352           m_defaultImage = true;
 353       }
 354
 355       User *user = new User(friendMap["address"].toString(), coordinates,
 356                             friendMap["name"].toString(),
 357                             friendMap["note"].toString(), imageUrl,
 358                             friendMap["timestamp"].toString(),
 359                             false, friendMap["uid"].toString(),
 360                             distanceMap["units"].toString(),
 361                             distanceMap["value"].toDouble());
 362
 363       m_friendsList.append(user);
 364     }
 365     addProfileImages();
 366 }
 367
 368 void SituareService::imageReceived(const QUrl &url, const QPixmap &image)
 369 {
 370     qDebug() << __PRETTY_FUNCTION__;
 371     qDebug() << "Image URL: " << url << " size :" << image.size();
 372
 373     // assign facebook silhouette image to all who doesn't have a profile image
 374     if(url == QUrl(SILHOUETTE_URL)) {
 375         if(m_user->profileImageUrl().isEmpty()) {
 376             m_user->setProfileImage(AvatarImage::create(image));
 377         }
 378         for(int i=0;i < m_friendsList.count();i++) {
 379             if(m_friendsList.at(i)->profileImageUrl().isEmpty()) {
 380                 m_friendsList.at(i)->setProfileImage(AvatarImage::create(image));
 381             }
 382         }
 383     }
 384
 385     if(m_user->profileImageUrl() == url) {
 386         m_user->setProfileImage(AvatarImage::create(image));
 387     }
 388
 389     for(int i=0;i<m_friendsList.count();i++) {
 390         if(m_friendsList.at(i)->profileImageUrl() == url) {
 391             m_friendsList.at(i)->setProfileImage(AvatarImage::create(image));
 392             m_nbrOfImages++; // indicates how many friend profile images has been downloaded
 393         }
 394     }
 395
 396     if(m_nbrOfImages == m_visited) {
 397         qDebug() << "m_nbrOfImages: " << m_nbrOfImages << " m_visited: " << m_visited;
 398         qDebug() << "emit userDataChanged";
 399         emit userDataChanged(m_user, m_friendsList);
 400     }
 401 }
 402
 403 void SituareService::addProfileImages()
 404 {
 405     qDebug() << __PRETTY_FUNCTION__;
 406
 407     // reduce net traffic by sending only one download request for facebook silhouette image
 408     if(m_defaultImage) {
 409         emit fetchImage(QUrl(SILHOUETTE_URL));
 410     }
 411
 412     if(!m_user->profileImageUrl().isEmpty() && m_user->profileImageUrl().isValid()) {
 413         emit fetchImage(m_user->profileImageUrl());
 414     }
 415
 416     for(int i=0;i<m_friendsList.count();i++) {
 417         if(!m_friendsList.at(i)->profileImageUrl().isEmpty() &&
 418            m_friendsList.at(i)->profileImageUrl().isValid()) {
 419             m_visited++; // indicates how many friends that have profile image
 420             emit fetchImage(m_friendsList.at(i)->profileImageUrl());
 421         }
 422     }
 423 }
 424
 425 void SituareService::clearUserData()
 426 {
 427     qDebug() << __PRETTY_FUNCTION__;
 428
 429     qDeleteAll(m_friendsList.begin(), m_friendsList.end());
 430     m_friendsList.clear();
 431
 432     if(m_user) {
 433         delete m_user;
 434         m_user = 0;
 435     }
 436     emit userDataChanged(m_user, m_friendsList);
 437 }