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/",                    //"http://mulder.byethost13.com/",
  57         "http://mulder.pe.hu/",                                 //"http://muldersoft.kilu.de/",
  58         "http://muldersoft.square7.ch/",                //"http://muldersoft.zxq.net/",
  59         "http://muldersoft.co.nf/",
  60         "http://muldersoft.eu.pn/",
  61         "http://lamexp.sourceforge.net/",
  62         "http://lordmulder.github.io/LameXP/",
  63         "http://lord_mulder.bitbucket.org/",
  64         "http://www.tricksoft.de/",
  65         NULL
  66 };
  67
  68 static const char *update_mirrors_back[] =
  69 {
  70         "http://mplayer.savedonthe.net/",
  71         NULL
  72 };
  73
  74 static const char *known_hosts[] =              //Taken form: http://www.alexa.com/topsites !!!
  75 {
  76         "http://www.163.com/",
  77         "http://www.7-zip.org/",
  78         "http://www.ac3filter.net/",
  79         "http://www.amazon.com/",
  80         "http://antergos.com/",
  81         "http://www.aol.com/",
  82         "http://www.apache.org/",
  83         "http://www.apple.com/",
  84         "http://www.adobe.com/",
  85         "http://web.audacityteam.org/",
  86         "http://automattic.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.citizeninsomniac.com/WMV/",
  97         "http://www.cnet.com/",
  98         "http://cnzz.com/",
  99         "http://www.codeplex.com/",
 100         "http://www.der-postillon.com/",
 101         "http://www.ebay.com/",
 102         "http://www.equation.com/",
 103         "http://fc2.com/",
 104         "http://fedoraproject.org/wiki/Fedora_Project_Wiki",
 105         "http://blog.fefe.de/",
 106         "http://www.ffmpeg.org/",
 107         "http://blog.flickr.net/en",
 108         "http://free-codecs.com/",
 109         "http://git-scm.com/",
 110         "http://status.gitlab.com/",
 111         "http://www.gmx.net/",
 112         "http://news.gnome.org/",
 113         "http://www.gnu.org/",
 114         "http://go.com/",
 115         "http://code.google.com/",
 116         "http://haali.su/mkv/",
 117         "http://www.heise.de/",
 118         "http://www.huffingtonpost.co.uk/",
 119         "http://www.iana.org/",
 120         "http://www.imdb.com/",
 121         "http://www.imgburn.com/",
 122         "http://imgur.com/",
 123         "http://www.jd.com/contact/",
 124         "http://kannmanumdieuhrzeitschonnbierchentrinken.de/",
 125         "http://mirrors.kernel.org/",
 126         "http://komisar.gin.by/",
 127         "http://lame.sourceforge.net/",
 128         "http://www.libav.org/",
 129         "http://blog.linkedin.com/",
 130         "http://www.linuxmint.com/",
 131         "http://www.livedoor.com/",
 132         "http://www.livejournal.com/",
 133         "http://go.mail.ru/",
 134         "http://www.mediafire.com/about/",
 135         "http://ftp.mozilla.org/",
 136         "http://mplayerhq.hu/",
 137         "http://www.msn.com/en-us/",
 138         "http://wiki.multimedia.cx/",
 139         "http://www.nch.com.au/",
 140         "http://oss.netfarm.it/",
 141         "http://www.nytimes.com/",
 142         "http://www.opera.com/",
 143         "http://www.partha.com/",
 144         "http://pastie.org/",
 145         "http://www.portablefreeware.com/",
 146         "http://www.qt.io/",
 147         "http://www.quakelive.com/",
 148         "http://www.seamonkey-project.org/",
 149         "http://www.shspvr.com/",
 150         "http://www.sina.com.cn/",
 151         "http://www.sohu.com/",
 152         "http://www.sogou.com/",
 153         "http://sourceforge.net/",
 154         "http://www.spiegel.de/",
 155         "http://stackoverflow.com/",
 156         "http://tdm-gcc.tdragon.net/",
 157         "http://www.tdrsmusic.com/",
 158         "http://www.ubuntu.com/",
 159         "http://www.uol.com.br/",
 160         "http://www.videohelp.com/",
 161         "http://www.videolan.org/",
 162         "http://virtualdub.org/",
 163         "http://blog.virustotal.com/",
 164         "http://www.warr.org/buckethead.html",
 165         "http://www.weibo.com/login.php",
 166         "http://status.wikimedia.org/",
 167         "http://www.winamp.com/",
 168         "http://wpde.org/",
 169         "http://x265.org/",
 170         "http://xhmikosr.1f0.de/",
 171         "http://xiph.org/",
 172         "http://us.mail.yahoo.com/",
 173         "http://www.yandex.ru/",
 174         "http://www.youtube.com/yt/about/",
 175         "http://www.zedo.com/",
 176         "http://ffmpeg.zeranoe.com/",
 177         NULL
 178 };
 179
 180 static const int MIN_CONNSCORE = 8;
 181 static const int VERSION_INFO_EXPIRES_MONTHS = 6;
 182 static char *USER_AGENT_STR = "Mozilla/5.0 (X11; Linux i686; rv:7.0.1) Gecko/20111106 IceCat/7.0.1";
 183
 184 //Helper function
 185 static int getMaxProgress(void)
 186 {
 187         int counter = MIN_CONNSCORE + 2;
 188         for(int i = 0; update_mirrors_prim[i]; i++) counter++;
 189         for(int i = 0; update_mirrors_back[i]; i++) counter++;
 190         return counter;
 191 }
 192
 193 ////////////////////////////////////////////////////////////
 194 // Update Info Class
 195 ////////////////////////////////////////////////////////////
 196
 197 UpdateCheckerInfo::UpdateCheckerInfo(void)
 198 {
 199         resetInfo();
 200 }
 201
 202 void UpdateCheckerInfo::resetInfo(void)
 203 {
 204         m_buildNo = 0;
 205         m_buildDate.setDate(1900, 1, 1);
 206         m_downloadSite.clear();
 207         m_downloadAddress.clear();
 208         m_downloadFilename.clear();
 209         m_downloadFilecode.clear();
 210         m_downloadChecksum.clear();
 211 }
 212
 213 bool UpdateCheckerInfo::isComplete(void)
 214 {
 215         if(this->m_buildNo < 1)                return false;
 216         if(this->m_buildDate.year() < 2010)    return false;
 217         if(this->m_downloadSite.isEmpty())     return false;
 218         if(this->m_downloadAddress.isEmpty())  return false;
 219         if(this->m_downloadFilename.isEmpty()) return false;
 220         if(this->m_downloadFilecode.isEmpty()) return false;
 221         if(this->m_downloadChecksum.isEmpty()) return false;
 222
 223         return true;
 224 }
 225
 226 ////////////////////////////////////////////////////////////
 227 // Constructor & Destructor
 228 ////////////////////////////////////////////////////////////
 229
 230 UpdateChecker::UpdateChecker(const QString &binWGet, const QString &binGnuPG, const QString &binKeys, const QString &applicationId, const quint32 &installedBuildNo, const bool betaUpdates, const bool testMode)
 231 :
 232         m_updateInfo(new UpdateCheckerInfo()),
 233         m_binaryWGet(binWGet),
 234         m_binaryGnuPG(binGnuPG),
 235         m_binaryKeys(binKeys),
 236         m_applicationId(applicationId),
 237         m_installedBuildNo(installedBuildNo),
 238         m_betaUpdates(betaUpdates),
 239         m_testMode(testMode),
 240         m_maxProgress(getMaxProgress())
 241 {
 242         m_success = false;
 243         m_status = UpdateStatus_NotStartedYet;
 244         m_progress = 0;
 245
 246         if(m_binaryWGet.isEmpty() || m_binaryGnuPG.isEmpty() || m_binaryKeys.isEmpty())
 247         {
 248                 MUTILS_THROW("Tools not initialized correctly!");
 249         }
 250 }
 251
 252 UpdateChecker::~UpdateChecker(void)
 253 {
 254 }
 255
 256 ////////////////////////////////////////////////////////////
 257 // Protected functions
 258 ////////////////////////////////////////////////////////////
 259
 260 void UpdateChecker::run(void)
 261 {
 262         qDebug("Update checker thread started!");
 263         MUTILS_EXCEPTION_HANDLER(m_testMode ? testKnownHosts() : checkForUpdates());
 264         qDebug("Update checker thread completed.");
 265 }
 266
 267 void UpdateChecker::checkForUpdates(void)
 268 {
 269         // ----- Initialization ----- //
 270
 271         m_success = false;
 272         m_updateInfo->resetInfo();
 273         seed_rand();
 274         setProgress(0);
 275
 276         // ----- Test Internet Connection ----- //
 277
 278         int connectionScore = 0;
 279         int maxConnectTries = (3 * MIN_CONNSCORE) / 2;
 280
 281         log("Checking internet connection...");
 282         setStatus(UpdateStatus_CheckingConnection);
 283
 284         const int networkStatus = OS::network_status();
 285         if(networkStatus == OS::NETWORK_TYPE_NON)
 286         {
 287                 log("", "Operating system reports that the computer is currently offline !!!");
 288                 setProgress(m_maxProgress);
 289                 setStatus(UpdateStatus_ErrorNoConnection);
 290                 return;
 291         }
 292
 293         setProgress(1);
 294
 295         // ----- Test Known Hosts Connectivity ----- //
 296
 297         QStringList hostList;
 298         for(int i = 0; known_hosts[i]; i++)
 299         {
 300                 hostList << QString::fromLatin1(known_hosts[i]);
 301         }
 302
 303         while(!(hostList.isEmpty() || (connectionScore >= MIN_CONNSCORE) || (maxConnectTries < 1)))
 304         {
 305                 switch(tryContactHost(hostList.takeAt(next_rand32() % hostList.count())))
 306                 {
 307                         case 01: connectionScore += 1; break;
 308                         case 02: connectionScore += 2; break;
 309                         default: maxConnectTries -= 1; break;
 310                 }
 311                 setProgress(qBound(1, connectionScore + 1, MIN_CONNSCORE + 1));
 312                 msleep(64);
 313         }
 314
 315         if(connectionScore < MIN_CONNSCORE)
 316         {
 317                 log("", "Connectivity test has failed: Internet connection appears to be broken!");
 318                 setProgress(m_maxProgress);
 319                 setStatus(UpdateStatus_ErrorConnectionTestFailed);
 320                 return;
 321         }
 322
 323         // ----- Build Mirror List ----- //
 324
 325         log("", "----", "", "Checking for updates online...");
 326         setStatus(UpdateStatus_FetchingUpdates);
 327
 328         QStringList mirrorList;
 329         for(int index = 0; update_mirrors_prim[index]; index++)
 330         {
 331                 mirrorList << QString::fromLatin1(update_mirrors_prim[index]);
 332         }
 333
 334         if(const int len = mirrorList.count())
 335         {
 336                 const int rounds = len * 1097;
 337                 for(int i = 0; i < rounds; i++)
 338                 {
 339                         mirrorList.swap(i % len, next_rand32() % len);
 340                 }
 341         }
 342
 343         for(int index = 0; update_mirrors_back[index]; index++)
 344         {
 345                 mirrorList << QString::fromLatin1(update_mirrors_back[index]);
 346         }
 347
 348         // ----- Fetch Update Info From Server ----- //
 349
 350         while(!mirrorList.isEmpty())
 351         {
 352                 QString currentMirror = mirrorList.takeFirst();
 353                 setProgress(m_progress + 1);
 354                 if(!m_success)
 355                 {
 356                         if(tryUpdateMirror(m_updateInfo.data(), currentMirror))
 357                         {
 358                                 m_success = true;
 359                         }
 360                 }
 361                 else
 362                 {
 363                         msleep(64);
 364                 }
 365         }
 366
 367         setProgress(m_maxProgress);
 368
 369         if(m_success)
 370         {
 371                 if(m_updateInfo->m_buildNo > m_installedBuildNo)
 372                 {
 373                         setStatus(UpdateStatus_CompletedUpdateAvailable);
 374                 }
 375                 else if(m_updateInfo->m_buildNo == m_installedBuildNo)
 376                 {
 377                         setStatus(UpdateStatus_CompletedNoUpdates);
 378                 }
 379                 else
 380                 {
 381                         setStatus(UpdateStatus_CompletedNewVersionOlder);
 382                 }
 383         }
 384         else
 385         {
 386                 setStatus(UpdateStatus_ErrorFetchUpdateInfo);
 387         }
 388 }
 389
 390 void UpdateChecker::testKnownHosts(void)
 391 {
 392         QStringList hostList;
 393         for(int i = 0; known_hosts[i]; i++)
 394         {
 395                 hostList << QString::fromLatin1(known_hosts[i]);
 396         }
 397
 398         qDebug("\n[Known Hosts]");
 399         log("Testing all known hosts...", "", "---");
 400
 401         int hostCount = hostList.count();
 402         while(!hostList.isEmpty())
 403         {
 404                 QString currentHost = hostList.takeFirst();
 405                 qDebug("Testing: %s", currentHost.toLatin1().constData());
 406                 log("", "Testing:", currentHost, "");
 407                 QString outFile = QString("%1/%2.htm").arg(temp_folder(), rand_str());
 408                 bool httpOk = false;
 409                 if(!getFile(currentHost, outFile, 0, &httpOk))
 410                 {
 411                         if(httpOk)
 412                         {
 413                                 qWarning("\nConnectivity test was SLOW on the following site:\n%s\n", currentHost.toLatin1().constData());
 414                         }
 415                         else
 416                         {
 417                                 qWarning("\nConnectivity test FAILED on the following site:\n%s\n", currentHost.toLatin1().constData());
 418                         }
 419                 }
 420                 log("", "---");
 421                 QFile::remove(outFile);
 422         }
 423 }
 424
 425 ////////////////////////////////////////////////////////////
 426 // PRIVATE FUNCTIONS
 427 ////////////////////////////////////////////////////////////
 428
 429 void UpdateChecker::setStatus(const int status)
 430 {
 431         if(m_status != status)
 432         {
 433                 m_status = status;
 434                 emit statusChanged(status);
 435         }
 436 }
 437
 438 void UpdateChecker::setProgress(const int progress)
 439 {
 440         if(m_progress != progress)
 441         {
 442                 m_progress = progress;
 443                 emit progressChanged(progress);
 444         }
 445 }
 446
 447 void UpdateChecker::log(const QString &str1, const QString &str2, const QString &str3, const QString &str4)
 448 {
 449         if(!str1.isNull()) emit messageLogged(str1);
 450         if(!str2.isNull()) emit messageLogged(str2);
 451         if(!str3.isNull()) emit messageLogged(str3);
 452         if(!str4.isNull()) emit messageLogged(str4);
 453 }
 454
 455 int UpdateChecker::tryContactHost(const QString &url)
 456 {
 457                 int result = -1; bool httpOkay = false;
 458                 const QString outFile = QString("%1/%2.htm").arg(temp_folder(), rand_str());
 459                 log("", "Testing host:", url);
 460
 461                 if(getFile(url, outFile, 0, &httpOkay))
 462                 {
 463                         log("Connection to host was established successfully.");
 464                         result = 2;
 465                 }
 466                 else
 467                 {
 468                         if(httpOkay)
 469                         {
 470                                 log("Connection to host timed out after HTTP OK was received.");
 471                                 result = 1;
 472                         }
 473                         else
 474                         {
 475                                 log("Connection failed: The host could not be reached!");
 476                                 result = 0;
 477                         }
 478                 }
 479
 480                 QFile::remove(outFile);
 481                 return result;
 482 }
 483
 484 bool UpdateChecker::tryUpdateMirror(UpdateCheckerInfo *updateInfo, const QString &url)
 485 {
 486         bool success = false;
 487         log("", "Trying mirror:", url);
 488
 489         const QString randPart = rand_str();
 490         const QString outFileVers = QString("%1/%2.ver").arg(temp_folder(), randPart);
 491         const QString outFileSign = QString("%1/%2.sig").arg(temp_folder(), randPart);
 492
 493         if(getUpdateInfo(url, outFileVers, outFileSign))
 494         {
 495                 log("", "Download okay, checking signature:");
 496                 if(checkSignature(outFileVers, outFileSign))
 497                 {
 498                         log("", "Signature okay, parsing info:");
 499                         success = parseVersionInfo(outFileVers, updateInfo);
 500                 }
 501                 else
 502                 {
 503                         log("", "Bad signature, take care!");
 504                 }
 505         }
 506         else
 507         {
 508                 log("", "Download has failed!");
 509         }
 510
 511         QFile::remove(outFileVers);
 512         QFile::remove(outFileSign);
 513
 514         return success;
 515 }
 516
 517 bool UpdateChecker::getUpdateInfo(const QString &url, const QString &outFileVers, const QString &outFileSign)
 518 {
 519         log("", "Downloading update info:");
 520         if(!getFile(QString("%1%2"    ).arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileVers))
 521         {
 522                 return false;
 523         }
 524
 525         log("", "Downloading signature:");
 526         if(!getFile(QString("%1%2.sig").arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileSign))
 527         {
 528                 return false;
 529         }
 530
 531         return true;
 532 }
 533
 534 bool UpdateChecker::getFile(const QString &url, const QString &outFile, unsigned int maxRedir, bool *httpOk)
 535 {
 536         QFileInfo output(outFile);
 537         output.setCaching(false);
 538         if(httpOk) *httpOk = false;
 539
 540         if(output.exists())
 541         {
 542                 QFile::remove(output.canonicalFilePath());
 543                 if(output.exists())
 544                 {
 545                         return false;
 546                 }
 547         }
 548
 549         QProcess process;
 550         init_process(process, output.absolutePath());
 551
 552         QStringList args;
 553         args << "-T" << "15" << "--no-cache" << "--no-dns-cache" << QString().sprintf("--max-redirect=%u", maxRedir);
 554         args << QString("--referer=%1://%2/").arg(QUrl(url).scheme(), QUrl(url).host()) << "-U" << USER_AGENT_STR;
 555         args << "-O" << output.fileName() << url;
 556
 557         QEventLoop loop;
 558         connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
 559         connect(&process, SIGNAL(finished(int,QProcess::ExitStatus)), &loop, SLOT(quit()));
 560         connect(&process, SIGNAL(readyRead()), &loop, SLOT(quit()));
 561
 562         QTimer timer;
 563         timer.setSingleShot(true);
 564         timer.setInterval(25000);
 565         connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
 566
 567         const QRegExp httpResponseOK("200 OK$");
 568
 569         process.start(m_binaryWGet, args);
 570
 571         if(!process.waitForStarted())
 572         {
 573                 return false;
 574         }
 575
 576         timer.start();
 577
 578         while(process.state() != QProcess::NotRunning)
 579         {
 580                 loop.exec();
 581                 const bool bTimeOut = (!timer.isActive());
 582                 while(process.canReadLine())
 583                 {
 584                         QString line = QString::fromLatin1(process.readLine()).simplified();
 585                         if(line.contains(httpResponseOK))
 586                         {
 587                                 line.append(" [OK]");
 588                                 if(httpOk) *httpOk = true;
 589                         }
 590                         log(line);
 591                 }
 592                 if(bTimeOut)
 593                 {
 594                         qWarning("WGet process timed out <-- killing!");
 595                         process.kill();
 596                         process.waitForFinished();
 597                         log("!!! TIMEOUT !!!");
 598                         return false;
 599                 }
 600         }
 601
 602         timer.stop();
 603         timer.disconnect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
 604
 605         log(QString().sprintf("Exited with code %d", process.exitCode()));
 606         return (process.exitCode() == 0) && output.exists() && output.isFile();
 607 }
 608
 609 bool UpdateChecker::checkSignature(const QString &file, const QString &signature)
 610 {
 611         if(QFileInfo(file).absolutePath().compare(QFileInfo(signature).absolutePath(), Qt::CaseInsensitive) != 0)
 612         {
 613                 qWarning("CheckSignature: File and signature should be in same folder!");
 614                 return false;
 615         }
 616
 617         if(QFileInfo(file).absolutePath().compare(QFileInfo(m_binaryKeys).absolutePath(), Qt::CaseInsensitive) != 0)
 618         {
 619                 qWarning("CheckSignature: File and keyring should be in same folder!");
 620                 return false;
 621         }
 622
 623         QProcess process;
 624         init_process(process, QFileInfo(file).absolutePath());
 625
 626         QEventLoop loop;
 627         connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
 628         connect(&process, SIGNAL(finished(int,QProcess::ExitStatus)), &loop, SLOT(quit()));
 629         connect(&process, SIGNAL(readyRead()), &loop, SLOT(quit()));
 630
 631         process.start(m_binaryGnuPG, QStringList() << "--homedir" << "." << "--keyring" << QFileInfo(m_binaryKeys).fileName() << QFileInfo(signature).fileName() << QFileInfo(file).fileName());
 632
 633         if(!process.waitForStarted())
 634         {
 635                 return false;
 636         }
 637
 638         while(process.state() == QProcess::Running)
 639         {
 640                 loop.exec();
 641                 while(process.canReadLine())
 642                 {
 643                         log(QString::fromLatin1(process.readLine()).simplified());
 644                 }
 645         }
 646
 647         log(QString().sprintf("Exited with code %d", process.exitCode()));
 648         return (process.exitCode() == 0);
 649 }
 650
 651 bool UpdateChecker::parseVersionInfo(const QString &file, UpdateCheckerInfo *updateInfo)
 652 {
 653         QRegExp value("^(\\w+)=(.+)$");
 654         QRegExp section("^\\[(.+)\\]$");
 655
 656         QDate updateInfoDate;
 657         updateInfo->resetInfo();
 658
 659         QFile data(file);
 660         if(!data.open(QIODevice::ReadOnly))
 661         {
 662                 qWarning("Cannot open update info file for reading!");
 663                 return false;
 664         }
 665
 666         bool inHdr = false;
 667         bool inSec = false;
 668
 669         while(!data.atEnd())
 670         {
 671                 QString line = QString::fromLatin1(data.readLine()).trimmed();
 672                 if(section.indexIn(line) >= 0)
 673                 {
 674                         log(QString("Sec: [%1]").arg(section.cap(1)));
 675                         inSec = (section.cap(1).compare(m_applicationId, Qt::CaseInsensitive) == 0);
 676                         inHdr = (section.cap(1).compare(QString::fromLatin1(header_id), Qt::CaseInsensitive) == 0);
 677                         continue;
 678                 }
 679                 if(inSec && (value.indexIn(line) >= 0))
 680                 {
 681                         log(QString("Val: '%1' ==> '%2").arg(value.cap(1), value.cap(2)));
 682                         if(value.cap(1).compare("BuildNo", Qt::CaseInsensitive) == 0)
 683                         {
 684                                 bool ok = false;
 685                                 const unsigned int temp = value.cap(2).toUInt(&ok);
 686                                 if(ok) updateInfo->m_buildNo = temp;
 687                         }
 688                         else if(value.cap(1).compare("BuildDate", Qt::CaseInsensitive) == 0)
 689                         {
 690                                 const QDate temp = QDate::fromString(value.cap(2).trimmed(), Qt::ISODate);
 691                                 if(temp.isValid()) updateInfo->m_buildDate = temp;
 692                         }
 693                         else if(value.cap(1).compare("DownloadSite", Qt::CaseInsensitive) == 0)
 694                         {
 695                                 updateInfo->m_downloadSite = value.cap(2).trimmed();
 696                         }
 697                         else if(value.cap(1).compare("DownloadAddress", Qt::CaseInsensitive) == 0)
 698                         {
 699                                 updateInfo->m_downloadAddress = value.cap(2).trimmed();
 700                         }
 701                         else if(value.cap(1).compare("DownloadFilename", Qt::CaseInsensitive) == 0)
 702                         {
 703                                 updateInfo->m_downloadFilename = value.cap(2).trimmed();
 704                         }
 705                         else if(value.cap(1).compare("DownloadFilecode", Qt::CaseInsensitive) == 0)
 706                         {
 707                                 updateInfo->m_downloadFilecode = value.cap(2).trimmed();
 708                         }
 709                         else if(value.cap(1).compare("DownloadChecksum", Qt::CaseInsensitive) == 0)
 710                         {
 711                                 updateInfo->m_downloadChecksum = value.cap(2).trimmed();
 712                         }
 713                 }
 714                 if(inHdr && (value.indexIn(line) >= 0))
 715                 {
 716                         log(QString("Val: '%1' ==> '%2").arg(value.cap(1), value.cap(2)));
 717                         if(value.cap(1).compare("TimestampCreated", Qt::CaseInsensitive) == 0)
 718                         {
 719                                 QDate temp = QDate::fromString(value.cap(2).trimmed(), Qt::ISODate);
 720                                 if(temp.isValid()) updateInfoDate = temp;
 721                         }
 722                 }
 723         }
 724
 725         if(!updateInfoDate.isValid())
 726         {
 727                 updateInfo->resetInfo();
 728                 log("WARNING: Version info timestamp is missing!");
 729                 return false;
 730         }
 731
 732         const QDate currentDate = OS::current_date();
 733         if(updateInfoDate.addMonths(VERSION_INFO_EXPIRES_MONTHS) < currentDate)
 734         {
 735                 updateInfo->resetInfo();
 736                 log(QString::fromLatin1("WARNING: This version info has expired at %1!").arg(updateInfoDate.addMonths(VERSION_INFO_EXPIRES_MONTHS).toString(Qt::ISODate)));
 737                 return false;
 738         }
 739         else if(currentDate < updateInfoDate)
 740         {
 741                 log("Version info is from the future, take care!");
 742                 qWarning("Version info is from the future, take care!");
 743         }
 744
 745         if(!updateInfo->isComplete())
 746         {
 747                 log("WARNING: Version info is incomplete!");
 748                 return false;
 749         }
 750
 751         return true;
 752 }
 753
 754 ////////////////////////////////////////////////////////////
 755 // SLOTS
 756 ////////////////////////////////////////////////////////////
 757
 758 /*NONE*/
 759
 760 ////////////////////////////////////////////////////////////
 761 // EVENTS
 762 ////////////////////////////////////////////////////////////
 763
 764 /*NONE*/