src/UpdateChecker.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2015 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This library is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU Lesser General Public
   7 // License as published by the Free Software Foundation; either
   8 // version 2.1 of the License, or (at your option) any later version.
   9 //
  10 // This library is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 // Lesser General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU Lesser General Public
  16 // License along with this library; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  18 //
  19 // http://www.gnu.org/licenses/lgpl-2.1.txt
  20 //////////////////////////////////////////////////////////////////////////////////
  21
  22 #include <MUtils/Global.h>
  23 #include <MUtils/UpdateChecker.h>
  24 #include <MUtils/OSSupport.h>
  25 #include <MUtils/Exception.h>
  26
  27 #include <QStringList>
  28 #include <QFile>
  29 #include <QFileInfo>
  30 #include <QProcess>
  31 #include <QUrl>
  32 #include <QEventLoop>
  33 #include <QTimer>
  34
  35 using namespace MUtils;
  36
  37 ///////////////////////////////////////////////////////////////////////////////
  38 // CONSTANTS
  39 ///////////////////////////////////////////////////////////////////////////////
  40
  41 static const char *header_id = "!Update";
  42
  43 static const char *mirror_url_postfix[] =
  44 {
  45         "update.ver",
  46         "update_beta.ver",
  47         NULL
  48 };
  49
  50 static const char *update_mirrors_prim[] =
  51 {
  52         "http://muldersoft.com/",
  53         "http://mulder.bplaced.net/",
  54         "http://mulder.cwsurf.de/",
  55         "http://mulder.6te.net/",
  56         "http://mulder.webuda.com/",
  57         "http://mulder.byethost13.com/",
  58         "http://muldersoft.kilu.de/",
  59         "http://mulder.pe.hu/",
  60         "http://muldersoft.square7.ch/", //"http://muldersoft.zxq.net/",
  61         "http://muldersoft.co.nf/",
  62         "http://muldersoft.eu.pn/",
  63         "http://lamexp.sourceforge.net/",
  64         "http://lordmulder.github.io/LameXP/",
  65         "http://lord_mulder.bitbucket.org/",
  66         "http://www.tricksoft.de/",
  67         NULL
  68 };
  69
  70 static const char *update_mirrors_back[] =
  71 {
  72         "http://mplayer.savedonthe.net/",
  73         NULL
  74 };
  75
  76 static const char *known_hosts[] =              //Taken form: http://www.alexa.com/topsites !!!
  77 {
  78         "http://www.163.com/",
  79         "http://www.7-zip.org/",
  80         "http://www.ac3filter.net/",
  81         "http://www.amazon.com/",
  82         "http://antergos.com/",
  83         "http://www.aol.com/",
  84         "http://www.apache.org/",
  85         "http://www.apple.com/",
  86         "http://www.adobe.com/",
  87         "http://www.avidemux.org/",
  88         "http://www.babylon.com/",
  89         "http://www.baidu.com/",
  90         "http://bandcamp.com/",
  91         "http://www.bbc.co.uk/",
  92         "http://www.berlios.de/",
  93         "http://www.bing.com/",
  94         "http://www.bucketheadpikes.com/",
  95         "http://www.ccc.de/",
  96         "http://www.cnet.com/",
  97         "http://cnzz.com/",
  98         "http://www.codeplex.com/",
  99         "http://www.ebay.com/",
 100         "http://www.equation.com/",
 101         "http://fc2.com/",
 102         "http://fedoraproject.org/wiki/Fedora_Project_Wiki",
 103         "http://blog.fefe.de/",
 104         "http://www.ffmpeg.org/",
 105         "http://blog.flickr.net/en",
 106         "http://free-codecs.com/",
 107         "http://blog.gitorious.org/",
 108         "http://git-scm.com/",
 109         "http://www.gmx.net/",
 110         "http://www.gnome.org/",
 111         "http://www.gnu.org/",
 112         "http://go.com/",
 113         "http://code.google.com/",
 114         "http://www.heise.de/",
 115         "http://www.huffingtonpost.co.uk/",
 116         "http://www.iana.org/",
 117         "http://www.imdb.com/",
 118         "http://www.imgburn.com/",
 119         "http://imgur.com/",
 120         "http://en.jd.com/",
 121         "http://kannmanumdieuhrzeitschonnbierchentrinken.de/",
 122         "http://mirrors.kernel.org/",
 123         "http://lame.sourceforge.net/",
 124         "http://www.libav.org/",
 125         "http://blog.linkedin.com/",
 126         "http://www.linuxmint.com/",
 127         "http://www.livedoor.com/",
 128         "http://www.livejournal.com/",
 129         "http://go.mail.ru/",
 130         "http://www.mediafire.com/",
 131         "http://ftp.mozilla.org/",
 132         "http://mplayerhq.hu/",
 133         "http://www.msn.com/en-us/",
 134         "http://oss.netfarm.it/",
 135         "http://www.nytimes.com/",
 136         "http://www.opera.com/",
 137         "http://pastie.org/",
 138         "http://www.portablefreeware.com/",
 139         "http://www.qt.io/",
 140         "http://qt-project.org/",
 141         "http://www.quakelive.com/",
 142         "http://www.seamonkey-project.org/",
 143         "http://www.sina.com.cn/",
 144         "http://www.sohu.com/",
 145         "http://www.sogou.com/",
 146         "http://sourceforge.net/",
 147         "http://www.spiegel.de/",
 148         "http://tdm-gcc.tdragon.net/",
 149         "http://www.tdrsmusic.com/",
 150         "http://www.ubuntu.com/",
 151         "http://status.twitter.com/",
 152         "http://www.uol.com.br/",
 153         "http://www.videohelp.com/",
 154         "http://www.videolan.org/",
 155         "http://virtualdub.org/",
 156         "http://blog.virustotal.com/",
 157         "http://www.weibo.com/login.php",
 158         "http://www.wikipedia.org/",
 159         "http://www.winamp.com/",
 160         "http://en.support.wordpress.com/",
 161         "http://xiph.org/",
 162         "http://us.mail.yahoo.com/",
 163         "http://www.yandex.ru/",
 164         "http://www.youtube.com/yt/about/",
 165         "http://www.zedo.com/",
 166         "http://ffmpeg.zeranoe.com/",
 167         NULL
 168 };
 169
 170 static const int MIN_CONNSCORE = 8;
 171 static const int VERSION_INFO_EXPIRES_MONTHS = 6;
 172 static char *USER_AGENT_STR = "Mozilla/5.0 (X11; Linux i686; rv:7.0.1) Gecko/20111106 IceCat/7.0.1";
 173
 174 //Helper function
 175 static int getMaxProgress(void)
 176 {
 177         int counter = MIN_CONNSCORE + 2;
 178         for(int i = 0; update_mirrors_prim[i]; i++) counter++;
 179         for(int i = 0; update_mirrors_back[i]; i++) counter++;
 180         return counter;
 181 }
 182
 183 ////////////////////////////////////////////////////////////
 184 // Update Info Class
 185 ////////////////////////////////////////////////////////////
 186
 187 UpdateCheckerInfo::UpdateCheckerInfo(void)
 188 {
 189         resetInfo();
 190 }
 191
 192 void UpdateCheckerInfo::resetInfo(void)
 193 {
 194         m_buildNo = 0;
 195         m_buildDate.setDate(1900, 1, 1);
 196         m_downloadSite.clear();
 197         m_downloadAddress.clear();
 198         m_downloadFilename.clear();
 199         m_downloadFilecode.clear();
 200 }
 201
 202 ////////////////////////////////////////////////////////////
 203 // Constructor & Destructor
 204 ////////////////////////////////////////////////////////////
 205
 206 UpdateChecker::UpdateChecker(const QString &binWGet, const QString &binGnuPG, const QString &binKeys, const QString &applicationId, const quint32 &installedBuildNo, const bool betaUpdates, const bool testMode)
 207 :
 208         m_updateInfo(new UpdateCheckerInfo()),
 209         m_binaryWGet(binWGet),
 210         m_binaryGnuPG(binGnuPG),
 211         m_binaryKeys(binKeys),
 212         m_applicationId(applicationId),
 213         m_installedBuildNo(installedBuildNo),
 214         m_betaUpdates(betaUpdates),
 215         m_testMode(testMode),
 216         m_maxProgress(getMaxProgress())
 217 {
 218         m_success = false;
 219         m_status = UpdateStatus_NotStartedYet;
 220         m_progress = 0;
 221
 222         if(m_binaryWGet.isEmpty() || m_binaryGnuPG.isEmpty() || m_binaryKeys.isEmpty())
 223         {
 224                 MUTILS_THROW("Tools not initialized correctly!");
 225         }
 226 }
 227
 228 UpdateChecker::~UpdateChecker(void)
 229 {
 230         delete m_updateInfo;
 231 }
 232
 233 ////////////////////////////////////////////////////////////
 234 // Protected functions
 235 ////////////////////////////////////////////////////////////
 236
 237 void UpdateChecker::run(void)
 238 {
 239         qDebug("Update checker thread started!");
 240         MUTILS_EXCEPTION_HANDLER(m_testMode ? testKnownHosts() : checkForUpdates());
 241         qDebug("Update checker thread completed.");
 242 }
 243
 244 void UpdateChecker::checkForUpdates(void)
 245 {
 246         // ----- Initialization ----- //
 247
 248         m_success = false;
 249         m_updateInfo->resetInfo();
 250         seed_rand();
 251         setProgress(0);
 252
 253         // ----- Test Internet Connection ----- //
 254
 255         int connectionScore = 0;
 256         int maxConnectTries = (3 * MIN_CONNSCORE) / 2;
 257
 258         log("Checking internet connection...");
 259         setStatus(UpdateStatus_CheckingConnection);
 260
 261         const int networkStatus = OS::network_status();
 262         if(networkStatus == OS::NETWORK_TYPE_NON)
 263         {
 264                 log("", "Operating system reports that the computer is currently offline !!!");
 265                 setProgress(m_maxProgress);
 266                 setStatus(UpdateStatus_ErrorNoConnection);
 267                 return;
 268         }
 269
 270         setProgress(1);
 271
 272         // ----- Test Known Hosts Connectivity ----- //
 273
 274         QStringList hostList;
 275         for(int i = 0; known_hosts[i]; i++)
 276         {
 277                 hostList << QString::fromLatin1(known_hosts[i]);
 278         }
 279
 280         while(!(hostList.isEmpty() || (connectionScore >= MIN_CONNSCORE) || (maxConnectTries < 1)))
 281         {
 282                 switch(tryContactHost(hostList.takeAt(next_rand32() % hostList.count())))
 283                 {
 284                         case 01: connectionScore += 1; break;
 285                         case 02: connectionScore += 2; break;
 286                         default: maxConnectTries -= 1; break;
 287                 }
 288                 setProgress(qBound(1, connectionScore + 1, MIN_CONNSCORE + 1));
 289                 msleep(64);
 290         }
 291
 292         if(connectionScore < MIN_CONNSCORE)
 293         {
 294                 log("", "Connectivity test has failed: Internet connection appears to be broken!");
 295                 setProgress(m_maxProgress);
 296                 setStatus(UpdateStatus_ErrorConnectionTestFailed);
 297                 return;
 298         }
 299
 300         // ----- Build Mirror List ----- //
 301
 302         log("", "----", "", "Checking for updates online...");
 303         setStatus(UpdateStatus_FetchingUpdates);
 304
 305         QStringList mirrorList;
 306         for(int index = 0; update_mirrors_prim[index]; index++)
 307         {
 308                 mirrorList << QString::fromLatin1(update_mirrors_prim[index]);
 309         }
 310
 311         if(const int len = mirrorList.count())
 312         {
 313                 const int rounds = len * 1097;
 314                 for(int i = 0; i < rounds; i++)
 315                 {
 316                         mirrorList.swap(i % len, next_rand32() % len);
 317                 }
 318         }
 319
 320         for(int index = 0; update_mirrors_back[index]; index++)
 321         {
 322                 mirrorList << QString::fromLatin1(update_mirrors_back[index]);
 323         }
 324
 325         // ----- Fetch Update Info From Server ----- //
 326
 327         while(!mirrorList.isEmpty())
 328         {
 329                 QString currentMirror = mirrorList.takeFirst();
 330                 setProgress(m_progress + 1);
 331                 if(!m_success)
 332                 {
 333                         if(tryUpdateMirror(m_updateInfo, currentMirror))
 334                         {
 335                                 m_success = true;
 336                         }
 337                 }
 338                 else
 339                 {
 340                         msleep(64);
 341                 }
 342         }
 343
 344         setProgress(m_maxProgress);
 345
 346         if(m_success)
 347         {
 348                 if(m_updateInfo->m_buildNo > m_installedBuildNo)
 349                 {
 350                         setStatus(UpdateStatus_CompletedUpdateAvailable);
 351                 }
 352                 else if(m_updateInfo->m_buildNo == m_installedBuildNo)
 353                 {
 354                         setStatus(UpdateStatus_CompletedNoUpdates);
 355                 }
 356                 else
 357                 {
 358                         setStatus(UpdateStatus_CompletedNewVersionOlder);
 359                 }
 360         }
 361         else
 362         {
 363                 setStatus(UpdateStatus_ErrorFetchUpdateInfo);
 364         }
 365 }
 366
 367 void UpdateChecker::testKnownHosts(void)
 368 {
 369         QStringList hostList;
 370         for(int i = 0; known_hosts[i]; i++)
 371         {
 372                 hostList << QString::fromLatin1(known_hosts[i]);
 373         }
 374
 375         qDebug("\n[Known Hosts]");
 376         log("Testing all known hosts...", "", "---");
 377
 378         int hostCount = hostList.count();
 379         while(!hostList.isEmpty())
 380         {
 381                 QString currentHost = hostList.takeFirst();
 382                 qDebug("Testing: %s", currentHost.toLatin1().constData());
 383                 log("", "Testing:", currentHost, "");
 384                 QString outFile = QString("%1/%2.htm").arg(temp_folder(), rand_str());
 385                 bool httpOk = false;
 386                 if(!getFile(currentHost, outFile, 0, &httpOk))
 387                 {
 388                         if(httpOk)
 389                         {
 390                                 qWarning("\nConnectivity test was SLOW on the following site:\n%s\n", currentHost.toLatin1().constData());
 391                         }
 392                         else
 393                         {
 394                                 qWarning("\nConnectivity test FAILED on the following site:\n%s\n", currentHost.toLatin1().constData());
 395                         }
 396                 }
 397                 log("", "---");
 398                 QFile::remove(outFile);
 399         }
 400 }
 401
 402 ////////////////////////////////////////////////////////////
 403 // PRIVATE FUNCTIONS
 404 ////////////////////////////////////////////////////////////
 405
 406 void UpdateChecker::setStatus(const int status)
 407 {
 408         if(m_status != status)
 409         {
 410                 m_status = status;
 411                 emit statusChanged(status);
 412         }
 413 }
 414
 415 void UpdateChecker::setProgress(const int progress)
 416 {
 417         if(m_progress != progress)
 418         {
 419                 m_progress = progress;
 420                 emit progressChanged(progress);
 421         }
 422 }
 423
 424 void UpdateChecker::log(const QString &str1, const QString &str2, const QString &str3, const QString &str4)
 425 {
 426         if(!str1.isNull()) emit messageLogged(str1);
 427         if(!str2.isNull()) emit messageLogged(str2);
 428         if(!str3.isNull()) emit messageLogged(str3);
 429         if(!str4.isNull()) emit messageLogged(str4);
 430 }
 431
 432 int UpdateChecker::tryContactHost(const QString &url)
 433 {
 434                 int result = -1; bool httpOkay = false;
 435                 const QString outFile = QString("%1/%2.htm").arg(temp_folder(), rand_str());
 436                 log("", "Testing host:", url);
 437
 438                 if(getFile(url, outFile, 0, &httpOkay))
 439                 {
 440                         log("Connection to host was established successfully.");
 441                         result = 2;
 442                 }
 443                 else
 444                 {
 445                         if(httpOkay)
 446                         {
 447                                 log("Connection to host timed out after HTTP OK was received.");
 448                                 result = 1;
 449                         }
 450                         else
 451                         {
 452                                 log("Connection failed: The host could not be reached!");
 453                                 result = 0;
 454                         }
 455                 }
 456
 457                 QFile::remove(outFile);
 458                 return result;
 459 }
 460
 461 bool UpdateChecker::tryUpdateMirror(UpdateCheckerInfo *updateInfo, const QString &url)
 462 {
 463         bool success = false;
 464         log("", "Trying mirror:", url);
 465
 466         const QString randPart = rand_str();
 467         const QString outFileVers = QString("%1/%2.ver").arg(temp_folder(), randPart);
 468         const QString outFileSign = QString("%1/%2.sig").arg(temp_folder(), randPart);
 469
 470         if(getUpdateInfo(url, outFileVers, outFileSign))
 471         {
 472                 log("", "Download okay, checking signature:");
 473                 if(checkSignature(outFileVers, outFileSign))
 474                 {
 475                         log("", "Signature okay, parsing info:");
 476                         success = parseVersionInfo(outFileVers, updateInfo);
 477                 }
 478                 else
 479                 {
 480                         log("", "Bad signature, take care!");
 481                 }
 482         }
 483         else
 484         {
 485                 log("", "Download has failed!");
 486         }
 487
 488         QFile::remove(outFileVers);
 489         QFile::remove(outFileSign);
 490
 491         return success;
 492 }
 493
 494 bool UpdateChecker::getUpdateInfo(const QString &url, const QString &outFileVers, const QString &outFileSign)
 495 {
 496         log("", "Downloading update info:");
 497         if(!getFile(QString("%1%2"    ).arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileVers))
 498         {
 499                 return false;
 500         }
 501
 502         log("", "Downloading signature:");
 503         if(!getFile(QString("%1%2.sig").arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileSign))
 504         {
 505                 return false;
 506         }
 507
 508         return true;
 509 }
 510
 511 bool UpdateChecker::getFile(const QString &url, const QString &outFile, unsigned int maxRedir, bool *httpOk)
 512 {
 513         QFileInfo output(outFile);
 514         output.setCaching(false);
 515         if(httpOk) *httpOk = false;
 516
 517         if(output.exists())
 518         {
 519                 QFile::remove(output.canonicalFilePath());
 520                 if(output.exists())
 521                 {
 522                         return false;
 523                 }
 524         }
 525
 526         QProcess process;
 527         init_process(process, output.absolutePath());
 528
 529         QStringList args;
 530         args << "-T" << "15" << "--no-cache" << "--no-dns-cache" << QString().sprintf("--max-redirect=%u", maxRedir);
 531         args << QString("--referer=%1://%2/").arg(QUrl(url).scheme(), QUrl(url).host()) << "-U" << USER_AGENT_STR;
 532         args << "-O" << output.fileName() << url;
 533
 534         QEventLoop loop;
 535         connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
 536         connect(&process, SIGNAL(finished(int,QProcess::ExitStatus)), &loop, SLOT(quit()));
 537         connect(&process, SIGNAL(readyRead()), &loop, SLOT(quit()));
 538
 539         QTimer timer;
 540         timer.setSingleShot(true);
 541         timer.setInterval(25000);
 542         connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
 543
 544         const QRegExp httpResponseOK("200 OK$");
 545
 546         process.start(m_binaryWGet, args);
 547
 548         if(!process.waitForStarted())
 549         {
 550                 return false;
 551         }
 552
 553         timer.start();
 554
 555         while(process.state() != QProcess::NotRunning)
 556         {
 557                 loop.exec();
 558                 const bool bTimeOut = (!timer.isActive());
 559                 while(process.canReadLine())
 560                 {
 561                         QString line = QString::fromLatin1(process.readLine()).simplified();
 562                         if(line.contains(httpResponseOK))
 563                         {
 564                                 line.append(" [OK]");
 565                                 if(httpOk) *httpOk = true;
 566                         }
 567                         log(line);
 568                 }
 569                 if(bTimeOut)
 570                 {
 571                         qWarning("WGet process timed out <-- killing!");
 572                         process.kill();
 573                         process.waitForFinished();
 574                         log("!!! TIMEOUT !!!");
 575                         return false;
 576                 }
 577         }
 578
 579         timer.stop();
 580         timer.disconnect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
 581
 582         log(QString().sprintf("Exited with code %d", process.exitCode()));
 583         return (process.exitCode() == 0) && output.exists() && output.isFile();
 584 }
 585
 586 bool UpdateChecker::checkSignature(const QString &file, const QString &signature)
 587 {
 588         if(QFileInfo(file).absolutePath().compare(QFileInfo(signature).absolutePath(), Qt::CaseInsensitive) != 0)
 589         {
 590                 qWarning("CheckSignature: File and signature should be in same folder!");
 591                 return false;
 592         }
 593
 594         if(QFileInfo(file).absolutePath().compare(QFileInfo(m_binaryKeys).absolutePath(), Qt::CaseInsensitive) != 0)
 595         {
 596                 qWarning("CheckSignature: File and keyring should be in same folder!");
 597                 return false;
 598         }
 599
 600         QProcess process;
 601         init_process(process, QFileInfo(file).absolutePath());
 602
 603         QEventLoop loop;
 604         connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
 605         connect(&process, SIGNAL(finished(int,QProcess::ExitStatus)), &loop, SLOT(quit()));
 606         connect(&process, SIGNAL(readyRead()), &loop, SLOT(quit()));
 607
 608         process.start(m_binaryGnuPG, QStringList() << "--homedir" << "." << "--keyring" << QFileInfo(m_binaryKeys).fileName() << QFileInfo(signature).fileName() << QFileInfo(file).fileName());
 609
 610         if(!process.waitForStarted())
 611         {
 612                 return false;
 613         }
 614
 615         while(process.state() == QProcess::Running)
 616         {
 617                 loop.exec();
 618                 while(process.canReadLine())
 619                 {
 620                         log(QString::fromLatin1(process.readLine()).simplified());
 621                 }
 622         }
 623
 624         log(QString().sprintf("Exited with code %d", process.exitCode()));
 625         return (process.exitCode() == 0);
 626 }
 627
 628 bool UpdateChecker::parseVersionInfo(const QString &file, UpdateCheckerInfo *updateInfo)
 629 {
 630         QRegExp value("^(\\w+)=(.+)$");
 631         QRegExp section("^\\[(.+)\\]$");
 632
 633         QDate updateInfoDate;
 634         updateInfo->resetInfo();
 635
 636         QFile data(file);
 637         if(!data.open(QIODevice::ReadOnly))
 638         {
 639                 qWarning("Cannot open update info file for reading!");
 640                 return false;
 641         }
 642
 643         bool inHdr = false;
 644         bool inSec = false;
 645
 646         while(!data.atEnd())
 647         {
 648                 QString line = QString::fromLatin1(data.readLine()).trimmed();
 649                 if(section.indexIn(line) >= 0)
 650                 {
 651                         log(QString("Sec: [%1]").arg(section.cap(1)));
 652                         inSec = (section.cap(1).compare(m_applicationId, Qt::CaseInsensitive) == 0);
 653                         inHdr = (section.cap(1).compare(QString::fromLatin1(header_id), Qt::CaseInsensitive) == 0);
 654                         continue;
 655                 }
 656                 if(inSec && (value.indexIn(line) >= 0))
 657                 {
 658                         log(QString("Val: '%1' ==> '%2").arg(value.cap(1), value.cap(2)));
 659                         if(value.cap(1).compare("BuildNo", Qt::CaseInsensitive) == 0)
 660                         {
 661                                 bool ok = false;
 662                                 unsigned int temp = value.cap(2).toUInt(&ok);
 663                                 if(ok) updateInfo->m_buildNo = temp;
 664                         }
 665                         else if(value.cap(1).compare("BuildDate", Qt::CaseInsensitive) == 0)
 666                         {
 667                                 QDate temp = QDate::fromString(value.cap(2).trimmed(), Qt::ISODate);
 668                                 if(temp.isValid()) updateInfo->m_buildDate = temp;
 669                         }
 670                         else if(value.cap(1).compare("DownloadSite", Qt::CaseInsensitive) == 0)
 671                         {
 672                                 updateInfo->m_downloadSite = value.cap(2).trimmed();
 673                         }
 674                         else if(value.cap(1).compare("DownloadAddress", Qt::CaseInsensitive) == 0)
 675                         {
 676                                 updateInfo->m_downloadAddress = value.cap(2).trimmed();
 677                         }
 678                         else if(value.cap(1).compare("DownloadFilename", Qt::CaseInsensitive) == 0)
 679                         {
 680                                 updateInfo->m_downloadFilename = value.cap(2).trimmed();
 681                         }
 682                         else if(value.cap(1).compare("DownloadFilecode", Qt::CaseInsensitive) == 0)
 683                         {
 684                                 updateInfo->m_downloadFilecode = value.cap(2).trimmed();
 685                         }
 686                 }
 687                 if(inHdr && (value.indexIn(line) >= 0))
 688                 {
 689                         log(QString("Val: '%1' ==> '%2").arg(value.cap(1), value.cap(2)));
 690                         if(value.cap(1).compare("TimestampCreated", Qt::CaseInsensitive) == 0)
 691                         {
 692                                 QDate temp = QDate::fromString(value.cap(2).trimmed(), Qt::ISODate);
 693                                 if(temp.isValid()) updateInfoDate = temp;
 694                         }
 695                 }
 696         }
 697
 698         if(!updateInfoDate.isValid())
 699         {
 700                 updateInfo->resetInfo();
 701                 log("WARNING: Version info timestamp is missing!");
 702                 return false;
 703         }
 704
 705         const QDate currentDate = OS::current_date();
 706         if(updateInfoDate.addMonths(VERSION_INFO_EXPIRES_MONTHS) < currentDate)
 707         {
 708                 updateInfo->resetInfo();
 709                 log(QString::fromLatin1("WARNING: This version info has expired at %1!").arg(updateInfoDate.addMonths(VERSION_INFO_EXPIRES_MONTHS).toString(Qt::ISODate)));
 710                 return false;
 711         }
 712         else if(currentDate < updateInfoDate)
 713         {
 714                 log("Version info is from the future, take care!");
 715                 qWarning("Version info is from the future, take care!");
 716         }
 717
 718         bool complete = true;
 719
 720         if(!(updateInfo->m_buildNo > 0)) complete = false;
 721         if(!(updateInfo->m_buildDate.year() >= 2010)) complete = false;
 722         if(updateInfo->m_downloadSite.isEmpty()) complete = false;
 723         if(updateInfo->m_downloadAddress.isEmpty()) complete = false;
 724         if(updateInfo->m_downloadFilename.isEmpty()) complete = false;
 725         if(updateInfo->m_downloadFilecode.isEmpty()) complete = false;
 726
 727         if(!complete)
 728         {
 729                 log("WARNING: Version info is incomplete!");
 730         }
 731
 732         return complete;
 733 }
 734
 735 ////////////////////////////////////////////////////////////
 736 // SLOTS
 737 ////////////////////////////////////////////////////////////
 738
 739 /*NONE*/
 740
 741 ////////////////////////////////////////////////////////////
 742 // EVENTS
 743 ////////////////////////////////////////////////////////////
 744
 745 /*NONE*/