vcs.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 <qjson/parser.h>
  23
  24 #include <QDebug>
  25 #include <QNetworkReply>
  26 #include <QPixmap>
  27 #include <QStringList>
  28 #include <QtAlgorithms>
  29 #include <QtGlobal>
  30
  31 #include "error.h"
  32 #include "network/networkaccessmanager.h"
  33 #include "situarecommon.h"
  34 #include "ui/avatarimage.h"
  35
  36 #include "situareservice.h"
  37
  38 SituareService::SituareService(QObject *parent)
  39         : QObject(parent),
  40         m_user(0)
  41 {
  42     qDebug() << __PRETTY_FUNCTION__;
  43
  44     m_networkManager = new NetworkAccessManager(this);
  45     connect(m_networkManager, SIGNAL(finished(QNetworkReply*)),
  46             this, SLOT(requestFinished(QNetworkReply*)), Qt::QueuedConnection);
  47
  48     m_imageFetcher = new ImageFetcher(new NetworkAccessManager(this), this);
  49     connect(this, SIGNAL(fetchImage(QUrl)),
  50             m_imageFetcher, SLOT(fetchImage(QUrl)));
  51     connect(m_imageFetcher, SIGNAL(imageReceived(QUrl,QPixmap)),
  52             this, SLOT(imageReceived(QUrl, QPixmap)));
  53     connect(m_imageFetcher, SIGNAL(error(int, int)),
  54             this, SIGNAL(error(int, int)));
  55 }
  56
  57 SituareService::~SituareService()
  58 {
  59     qDebug() << __PRETTY_FUNCTION__;
  60
  61     if(m_user) {
  62         delete m_user;
  63         m_user = 0;
  64     }
  65
  66     qDeleteAll(m_friendsList.begin(), m_friendsList.end());
  67     m_friendsList.clear();
  68 }
  69
  70 void SituareService::addProfileImages(const QList<QUrl> &imageUrlList)
  71 {
  72     qDebug() << __PRETTY_FUNCTION__;
  73
  74     foreach(QUrl url, imageUrlList) {
  75         emit fetchImage(url);
  76     }
  77 }
  78
  79 void SituareService::appendAccessToken(QString &requestUrl)
  80 {
  81     qWarning() << __PRETTY_FUNCTION__;
  82
  83 //    requestUrl.append("access_token=");
  84     requestUrl.append(m_session);
  85
  86 //    qWarning() << __PRETTY_FUNCTION__ << "request url with parameters and access token:" << requestUrl;
  87 }
  88
  89 void SituareService::buildRequest(const QString &script, const QHash<QString, QString> &parameters)
  90 {
  91     qWarning() << __PRETTY_FUNCTION__;
  92
  93     const QString PARAMETER_KEY_API = "api";
  94     const QString PARAMETER_VALUE_API = "2.0";
  95
  96     QString url = SITUARE_URL;
  97     url.append(script);
  98     url.append("?");
  99
 100     // append default api version parameter if not yet specified
 101 //    if (!parameters.contains(PARAMETER_KEY_API))
 102 //        url.append(PARAMETER_KEY_API + "=" + PARAMETER_VALUE_API + "&");
 103
 104     // append parameters
 105     if (!parameters.isEmpty()) {
 106         QHash<QString, QString>::const_iterator i = parameters.constBegin();
 107         while (i != parameters.constEnd()) {
 108             url.append(i.key());
 109             url.append("=");
 110             url.append(i.value());
 111             url.append("&");
 112             i++;
 113         }
 114     }
 115
 116 //    qWarning() << __PRETTY_FUNCTION__ << "request url with parameters:" << url;
 117
 118     if (!m_session.isEmpty()) {
 119         appendAccessToken(url);
 120         sendRequest(url);
 121     } else {
 122         m_requestsWaitingAccessToken.append(url);
 123         ///< @todo emit login request
 124     }
 125 }
 126
 127 void SituareService::clearUserData()
 128 {
 129     qDebug() << __PRETTY_FUNCTION__;
 130
 131     qDeleteAll(m_friendsList.begin(), m_friendsList.end());
 132     m_friendsList.clear();
 133
 134     if(m_user) {
 135         delete m_user;
 136         m_user = 0;
 137     }
 138     emit userDataChanged(m_user, m_friendsList);
 139 }
 140
 141 QString SituareService::degreesToString(double degrees)
 142 {
 143     qDebug() << __PRETTY_FUNCTION__;
 144
 145     // one scene pixel is about 5.4e-6 degrees, the integer part is max three digits and one
 146     // additional digit is added for maximum precision
 147     const int PRECISION = 10;
 148
 149     return QString::number(degrees, 'f', PRECISION);
 150 }
 151
 152 void SituareService::fetchLocations()
 153 {
 154     qDebug() << __PRETTY_FUNCTION__;
 155
 156     QHash<QString, QString> parameters;
 157     parameters.insert("extra_user_data", NORMAL_SIZE_PROFILE_IMAGE);
 158
 159     buildRequest(GET_LOCATIONS, parameters);
 160 }
 161
 162 QString SituareService::formCookie(const QString &apiKeyValue, QString expiresValue,
 163                                    QString userValue, QString sessionKeyValue,
 164                                    QString sessionSecretValue, const QString &signatureValue,
 165                                    const QString &localeValue)
 166 {
 167     qDebug() << __PRETTY_FUNCTION__;
 168
 169     QString cookie;
 170     QString apiKey;
 171     QString user;
 172     QString expires;
 173     QString sessionKey;
 174     QString sessionSecret;
 175     QString locale;
 176     QString variable;
 177     QString signature = EQUAL_MARK;
 178     QStringList variableList;
 179
 180     signature.append(signatureValue);
 181     apiKey.append(apiKeyValue);
 182     apiKey.append(UNDERLINE_MARK);
 183
 184     user.append(USER);
 185     user.append(EQUAL_MARK);
 186     expires.append(EXPIRES);
 187     expires.append(EQUAL_MARK);
 188     sessionKey.append(SESSION_KEY);
 189     sessionKey.append(EQUAL_MARK);
 190     sessionSecret.append(SESSION_SECRET);
 191     sessionSecret.append(EQUAL_MARK);
 192     locale.append(LOCALE);
 193     locale.append(EQUAL_MARK);
 194     locale.append(localeValue);
 195
 196     variableList.append(expires.append(expiresValue.append(BREAK_MARK)));
 197     variableList.append(sessionKey.append(sessionKeyValue.append(BREAK_MARK)));
 198     variableList.append(user.append(userValue).append(BREAK_MARK));
 199     variableList.append(sessionSecret.append(sessionSecretValue.append(BREAK_MARK)));
 200
 201     cookie.append(BREAK_MARK);
 202
 203     foreach(variable, variableList) {
 204         cookie.append(apiKey);
 205         cookie.append(variable);
 206     }
 207     apiKey.remove(UNDERLINE_MARK);
 208     cookie.append(apiKey);
 209     cookie.append(signature);
 210     cookie.append(BREAK_MARK);
 211     cookie.append(locale);
 212
 213     qDebug() << cookie;
 214
 215     return cookie;
 216 }
 217
 218 QUrl SituareService::formUrl(const QString &baseUrl, const QString &phpScript,
 219                              QString urlParameters)
 220 {
 221     qDebug() << __PRETTY_FUNCTION__;
 222     QString urlString;
 223
 224     urlString.append(baseUrl);
 225     urlString.append(phpScript);
 226     if(!urlParameters.isEmpty())
 227         urlString.append(urlParameters);
 228
 229     QUrl url = QUrl(urlString);
 230
 231     qDebug() << url;
 232
 233     return url;
 234 }
 235
 236 QString SituareService::formUrlParameters(const GeoCoordinate &coordinates, QString status,
 237                                           bool publish)
 238 {
 239     qDebug() << __PRETTY_FUNCTION__;
 240
 241     // one scene pixel is about 5.4e-6 degrees, the integer part is max three digits and one
 242     // additional digit is added for maximum precision
 243     const int COORDINATE_PRECISION = 10;
 244
 245     QString parameters;
 246
 247     parameters.append(QUESTION_MARK);
 248     parameters.append(LATITUDE);
 249     parameters.append(EQUAL_MARK);
 250     parameters.append(QString::number(coordinates.latitude(), 'f', COORDINATE_PRECISION));
 251     parameters.append(AMBERSAND_MARK);
 252     parameters.append(LONGTITUDE);
 253     parameters.append(EQUAL_MARK);
 254     parameters.append(QString::number(coordinates.longitude(), 'f', COORDINATE_PRECISION));
 255
 256     parameters.append(AMBERSAND_MARK);
 257     parameters.append(PUBLISH);
 258     parameters.append(EQUAL_MARK);
 259
 260     if(publish)
 261         parameters.append(PUBLISH_TRUE);
 262     else
 263         parameters.append(PUBLISH_FALSE);
 264
 265     if(!status.isEmpty()) {
 266         parameters.append(AMBERSAND_MARK);
 267         parameters.append(DATA);
 268         parameters.append(EQUAL_MARK);
 269         parameters.append(status);
 270     }
 271
 272     return parameters;
 273 }
 274
 275 void SituareService::imageReceived(const QUrl &url, const QPixmap &image)
 276 {
 277     qDebug() << __PRETTY_FUNCTION__;
 278     qDebug() << "Image URL: " << url << " size :" << image.size();
 279
 280     // assign facebook silhouette image to all who doesn't have a profile image
 281     if(url == QUrl(SILHOUETTE_URL)) {
 282         if(m_user->profileImageUrl().isEmpty()) {
 283             m_user->setProfileImage(AvatarImage::create(image, AvatarImage::Large));
 284             emit imageReady(m_user);
 285         }
 286         foreach(User *friendItem, m_friendsList) {
 287             if(friendItem->profileImageUrl().isEmpty()) {
 288                 friendItem->setProfileImage(AvatarImage::create(image, AvatarImage::Small));
 289                 emit imageReady(friendItem);
 290             }
 291         }
 292     }
 293
 294     if (m_user->profileImageUrl() == url) {
 295         m_user->setProfileImage(AvatarImage::create(image, AvatarImage::Large));
 296         emit imageReady(m_user);
 297     }
 298
 299     foreach(User *friendItem, m_friendsList) {
 300         if(friendItem->profileImageUrl() == url) {
 301             friendItem->setProfileImage(AvatarImage::create(image, AvatarImage::Small));
 302             emit imageReady(friendItem);
 303         }
 304     }
 305 }
 306
 307 void SituareService::parseUserData(const QByteArray &jsonReply)
 308 {
 309     qDebug() << __PRETTY_FUNCTION__;
 310
 311     m_defaultImage = false;
 312
 313     QJson::Parser parser;
 314     bool ok;
 315
 316     QVariantMap result = parser.parse (jsonReply, &ok).toMap();
 317     if (!ok) {
 318         emit error(ErrorContext::SITUARE, SituareError::INVALID_JSON);
 319         return;
 320     } else {
 321
 322         if(result.contains("ErrorCode")) {
 323             QVariant errorVariant = result.value("ErrorCode");
 324             emit error(ErrorContext::SITUARE, errorVariant.toInt());
 325             return;
 326         } else if(result.contains("user")) {
 327
 328             QVariant userVariant = result.value("user");
 329             QMap<QString, QVariant> userMap = userVariant.toMap();
 330
 331             GeoCoordinate coordinates(userMap["latitude"].toReal(), userMap["longitude"].toReal());
 332
 333             QUrl imageUrl = userMap[NORMAL_SIZE_PROFILE_IMAGE].toUrl();
 334
 335             if(imageUrl.isEmpty()) {
 336                 // user doesn't have profile image, so we need to get him a silhouette image
 337                 m_defaultImage = true;
 338             }
 339
 340             QString address = userMap["address"].toString();
 341             if(address.isEmpty()) {
 342                 QStringList location;
 343                 location.append(QString::number(coordinates.latitude()));
 344                 location.append(QString::number(coordinates.longitude()));
 345                 address = location.join(", ");
 346             }
 347
 348             User user = User(address, coordinates, userMap["name"].toString(),
 349                           userMap["note"].toString(), imageUrl, userMap["timestamp"].toString(),
 350                           true, userMap["uid"].toString());
 351
 352             QList<User> tmpFriendsList;
 353
 354             foreach (QVariant friendsVariant, result["friends"].toList()) {
 355               QMap<QString, QVariant> friendMap = friendsVariant.toMap();
 356               QVariant distance = friendMap["distance"];
 357               QMap<QString, QVariant> distanceMap = distance.toMap();
 358
 359               GeoCoordinate coordinates(friendMap["latitude"].toReal(),friendMap["longitude"].toReal());
 360
 361               QUrl imageUrl = friendMap["profile_pic"].toUrl();
 362
 363               if(imageUrl.isEmpty()) {
 364                   // friend doesn't have profile image, so we need to get him a silhouette image
 365                   m_defaultImage = true;
 366               }
 367
 368               QString address = friendMap["address"].toString();
 369               if(address.isEmpty()) {
 370                   QStringList location;
 371                   location.append(QString::number(coordinates.latitude()));
 372                   location.append(QString::number(coordinates.longitude()));
 373                   address = location.join(", ");
 374               }
 375
 376               User buddy = User(address, coordinates, friendMap["name"].toString(),
 377                                friendMap["note"].toString(), imageUrl,
 378                                friendMap["timestamp"].toString(),
 379                                false, friendMap["uid"].toString(), distanceMap["units"].toString(),
 380                                distanceMap["value"].toDouble());
 381
 382               tmpFriendsList.append(buddy);
 383             }
 384
 385             QList<QUrl> imageUrlList; // url list for images
 386
 387             // set unchanged profile images or add new images to imageUrlList for downloading
 388             if(m_user) {
 389                 if(m_user->profileImageUrl() != user.profileImageUrl()) {
 390                     if(!user.profileImageUrl().isEmpty())
 391                         imageUrlList.append(user.profileImageUrl());
 392                 } else {
 393                     user.setProfileImage(m_user->profileImage());
 394                 }
 395             } else {
 396                 if(!user.profileImageUrl().isEmpty())
 397                     imageUrlList.append(user.profileImageUrl());
 398             }
 399
 400             // clear old user object
 401             if(m_user) {
 402                 delete m_user;
 403                 m_user = 0;
 404             }
 405
 406             // create new user object from temporary user object
 407             m_user = new User(user);
 408
 409             // set unchanged profile images or add new images to imageUrlList for downloading
 410             if(!m_friendsList.isEmpty()) {
 411                 foreach(User tmpBuddy, tmpFriendsList) {
 412                     if(!tmpBuddy.profileImageUrl().isEmpty()) {
 413                         bool found = false;
 414                         foreach(User *buddy, m_friendsList) {
 415                             if(tmpBuddy.profileImageUrl() == buddy->profileImageUrl()) {
 416                                 tmpBuddy.setProfileImage(buddy->profileImage());
 417                                 found = true;
 418                                 break;
 419                             }
 420                         }
 421                         if(!found && !tmpBuddy.profileImageUrl().isEmpty())
 422                             imageUrlList.append(tmpBuddy.profileImageUrl());
 423                     }
 424                 }
 425             } else {
 426                 foreach(User buddy, tmpFriendsList) {
 427                     if(!buddy.profileImageUrl().isEmpty())
 428                         imageUrlList.append(buddy.profileImageUrl());
 429                 }
 430             }
 431
 432             // clear old friendlist
 433             qDeleteAll(m_friendsList.begin(), m_friendsList.end());
 434             m_friendsList.clear();
 435
 436             // populate new friendlist with temporary friendlist's data
 437             foreach(User tmpFriendItem, tmpFriendsList) {
 438                 User *friendItem = new User(tmpFriendItem);
 439                 m_friendsList.append(friendItem);
 440             }
 441             tmpFriendsList.clear();
 442
 443             emit userDataChanged(m_user, m_friendsList);
 444
 445             // set silhouette image to imageUrlList for downloading
 446             if(m_defaultImage)
 447                 imageUrlList.append(QUrl(SILHOUETTE_URL));
 448
 449             addProfileImages(imageUrlList);
 450             imageUrlList.clear();
 451         } else {
 452             QVariant address = result.value("address");
 453             if(!address.toString().isEmpty()) {
 454                 emit reverseGeoReady(address.toString());
 455             } else {
 456                 QStringList coordinates;
 457                 coordinates.append(result.value("lat").toString());
 458                 coordinates.append(result.value("lon").toString());
 459
 460                 emit error(ErrorContext::SITUARE, SituareError::ADDRESS_RETRIEVAL_FAILED);
 461                 emit reverseGeoReady(coordinates.join(", "));
 462             }
 463         }
 464     }
 465 }
 466
 467 void SituareService::requestFinished(QNetworkReply *reply)
 468 {
 469     qDebug() << __PRETTY_FUNCTION__;
 470
 471     //Reply from situare
 472     if (m_currentRequests.contains(reply)) {
 473
 474         qDebug() << "BytesAvailable: " << reply->bytesAvailable();
 475
 476         if (reply->error()) {
 477             emit error(ErrorContext::NETWORK, reply->error());
 478         } else {
 479             QByteArray replyArray = reply->readAll();
 480             qDebug() << "Reply from: " << reply->url() << "reply " << replyArray;
 481
 482             if(replyArray == ERROR_LAT.toAscii()) {
 483                 qDebug() << "Error: " << ERROR_LAT;
 484                 emit error(ErrorContext::SITUARE, SituareError::UPDATE_FAILED);
 485             } else if(replyArray == ERROR_LON.toAscii()) {
 486                 qDebug() << "Error: " << ERROR_LON;
 487                 emit error(ErrorContext::SITUARE, SituareError::UPDATE_FAILED);
 488             } else if(replyArray.contains(ERROR_SESSION.toAscii())) {
 489                 qDebug() << "Error: " << ERROR_SESSION;
 490                 emit error(ErrorContext::SITUARE, SituareError::SESSION_EXPIRED);
 491             } else if(replyArray.startsWith(OPENING_BRACE_MARK.toAscii())) {
 492                 qDebug() << "JSON string";
 493                 parseUserData(replyArray);
 494             } else if(replyArray.isEmpty()) {
 495                 if(reply->url().toString().contains(UPDATE_LOCATION.toAscii())) {
 496                     emit updateWasSuccessful();
 497                 } else {
 498                     // session credentials are invalid
 499                     emit error(ErrorContext::SITUARE, SituareError::SESSION_EXPIRED);
 500                 }
 501             } else {
 502                 // unknown reply
 503                 emit error(ErrorContext::SITUARE, SituareError::ERROR_GENERAL);
 504             }
 505         }
 506         m_currentRequests.removeAll(reply);
 507         reply->deleteLater();
 508     }
 509 }
 510
 511 void SituareService::reverseGeo(const GeoCoordinate &coordinates)
 512 {
 513     qDebug() << __PRETTY_FUNCTION__;
 514
 515     QHash<QString, QString> parameters;
 516     parameters.insert("lat", degreesToString(coordinates.latitude()));
 517     parameters.insert("lon", degreesToString(coordinates.longitude()));
 518     parameters.insert("format", "json");
 519
 520     buildRequest(REVERSE_GEO, parameters);
 521 }
 522
 523 void SituareService::sendRequest(const QUrl &url, const QString &cookieType, const QString &cookie)
 524 {
 525     qDebug() << __PRETTY_FUNCTION__;
 526
 527     QNetworkRequest request;
 528
 529     request.setUrl(url);
 530     request.setAttribute(QNetworkRequest::CacheSaveControlAttribute, false);
 531     request.setRawHeader(cookieType.toAscii(), cookie.toUtf8());
 532
 533     QNetworkReply *reply = m_networkManager->get(request, true);
 534
 535     m_currentRequests.append(reply);
 536 }
 537
 538 void SituareService::sendRequest(const QString &requestUrl)
 539 {
 540     qWarning() << __PRETTY_FUNCTION__ << "requestUrl" << requestUrl;
 541
 542     // make and send the request
 543     QNetworkRequest request;
 544     request.setUrl(QUrl(requestUrl));
 545     request.setAttribute(QNetworkRequest::CacheSaveControlAttribute, false);
 546     QNetworkReply *reply = m_networkManager->get(request, true);
 547     m_currentRequests.append(reply);
 548 }
 549
 550 void SituareService::updateSession(const QString &session)
 551 {
 552     qWarning() << __PRETTY_FUNCTION__;
 553
 554     m_session = session;
 555
 556     foreach (QString request, m_requestsWaitingAccessToken) {
 557         appendAccessToken(request);
 558         sendRequest(request);
 559     }
 560
 561     m_requestsWaitingAccessToken.clear();
 562 }
 563
 564 void SituareService::updateLocation(const GeoCoordinate &coordinates, const QString &status,
 565                                     const bool &publish)
 566 {
 567     qDebug() << __PRETTY_FUNCTION__;
 568
 569     QHash<QString, QString> parameters;
 570     parameters.insert("lat", degreesToString(coordinates.latitude()));
 571     parameters.insert("lon", degreesToString(coordinates.longitude()));
 572     parameters.insert("publish", publish ? "true" : "false");
 573     parameters.insert("data", status); ///< @todo if !empty ???
 574
 575     buildRequest(UPDATE_LOCATION, parameters);
 576 }