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