src/UpdateChecker.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2014 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.cnet.com/",
  93         "http://cnzz.com/",
  94         "http://www.codeplex.com/",
  95         "http://qt.digia.com/",
  96         "http://www.ebay.com/",
  97         "http://www.equation.com/",
  98         "http://fc2.com/",
  99         "http://fedoraproject.org/",
 100         "http://www.ffmpeg.org/",
 101         "http://blog.flickr.net/en",
 102         "http://free-codecs.com/",
 103         "http://blog.gitorious.org/",
 104         "http://git-scm.com/",
 105         "http://www.gmx.net/",
 106         "http://www.gnome.org/",
 107         "http://www.gnu.org/",
 108         "http://go.com/",
 109         "http://code.google.com/",
 110         "http://www.heise.de/",
 111         "http://www.huffingtonpost.co.uk/",
 112         "http://www.iana.org/",
 113         "http://www.imdb.com/",
 114         "http://www.imgburn.com/",
 115         "http://imgur.com/",
 116         "http://en.jd.com/",
 117         "http://kannmanumdieuhrzeitschonnbierchentrinken.de/",
 118         "http://mirrors.kernel.org/",
 119         "http://lame.sourceforge.net/",
 120         "http://www.libav.org/",
 121         "http://www.linkedin.com/about-us",
 122         "http://www.linuxmint.com/",
 123         "http://www.livedoor.com/",
 124         "http://www.livejournal.com/",
 125         "http://go.mail.ru/",
 126         "http://www.mediafire.com/",
 127         "http://ftp.mozilla.org/",
 128         "http://mplayerhq.hu/",
 129         "http://www.msn.com/?st=1",
 130         "http://oss.netfarm.it/",
 131         "http://www.nytimes.com/",
 132         "http://www.opera.com/",
 133         "http://pastie.org/",
 134         "http://www.portablefreeware.com/",
 135         "http://qt-project.org/",
 136         "http://www.quakelive.com/",
 137         "http://www.seamonkey-project.org/",
 138         "http://www.sina.com.cn/",
 139         "http://www.sohu.com/",
 140         "http://www.soso.com/",
 141         "http://sourceforge.net/",
 142         "http://www.spiegel.de/",
 143         "http://tdm-gcc.tdragon.net/",
 144         "http://www.tdrsmusic.com/",
 145         "http://www.ubuntu.com/",
 146         "http://status.twitter.com/",
 147         "http://www.uol.com.br/",
 148         "http://www.videohelp.com/",
 149         "http://www.videolan.org/",
 150         "http://virtualdub.org/",
 151         "http://blog.virustotal.com/",
 152         "http://weibo.com/login.php",
 153         "http://www.wikipedia.org/",
 154         "http://www.winamp.com/",
 155         "http://wordpress.com/about/",
 156         "http://xiph.org/",
 157         "http://us.mail.yahoo.com/",
 158         "http://www.yandex.ru/",
 159         "http://www.youtube.com/yt/about/",
 160         "http://www.zedo.com/",
 161         "http://ffmpeg.zeranoe.com/",
 162         NULL
 163 };
 164
 165 static const int MIN_CONNSCORE = 8;
 166 static const int VERSION_INFO_EXPIRES_MONTHS = 6;
 167 static char *USER_AGENT_STR = "Mozilla/5.0 (X11; Linux i686; rv:7.0.1) Gecko/20111106 IceCat/7.0.1";
 168
 169 //Helper function
 170 static int getMaxProgress(void)
 171 {
 172         int counter = MIN_CONNSCORE + 2;
 173         for(int i = 0; update_mirrors_prim[i]; i++) counter++;
 174         for(int i = 0; update_mirrors_back[i]; i++) counter++;
 175         return counter;
 176 }
 177
 178 ////////////////////////////////////////////////////////////
 179 // Update Info Class
 180 ////////////////////////////////////////////////////////////
 181
 182 UpdateCheckerInfo::UpdateCheckerInfo(void)
 183 {
 184         resetInfo();
 185 }
 186
 187 void UpdateCheckerInfo::resetInfo(void)
 188 {
 189         m_buildNo = 0;
 190         m_buildDate.setDate(1900, 1, 1);
 191         m_downloadSite.clear();
 192         m_downloadAddress.clear();
 193         m_downloadFilename.clear();
 194         m_downloadFilecode.clear();
 195 }
 196
 197 ////////////////////////////////////////////////////////////
 198 // Constructor & Destructor
 199 ////////////////////////////////////////////////////////////
 200
 201 UpdateChecker::UpdateChecker(const QString &binWGet, const QString &binGnuPG, const QString &binKeys, const QString &applicationId, const quint32 &installedBuildNo, const bool betaUpdates, const bool testMode)
 202 :
 203         m_updateInfo(new UpdateCheckerInfo()),
 204         m_binaryWGet(binWGet),
 205         m_binaryGnuPG(binGnuPG),
 206         m_binaryKeys(binKeys),
 207         m_applicationId(applicationId),
 208         m_installedBuildNo(installedBuildNo),
 209         m_betaUpdates(betaUpdates),
 210         m_testMode(testMode),
 211         m_maxProgress(getMaxProgress())
 212 {
 213         m_success = false;
 214         m_status = UpdateStatus_NotStartedYet;
 215         m_progress = 0;
 216
 217         if(m_binaryWGet.isEmpty() || m_binaryGnuPG.isEmpty() || m_binaryKeys.isEmpty())
 218         {
 219                 MUTILS_THROW("Tools not initialized correctly!");
 220         }
 221 }
 222
 223 UpdateChecker::~UpdateChecker(void)
 224 {
 225         delete m_updateInfo;
 226 }
 227
 228 ////////////////////////////////////////////////////////////
 229 // Protected functions
 230 ////////////////////////////////////////////////////////////
 231
 232 void UpdateChecker::run(void)
 233 {
 234         qDebug("Update checker thread started!");
 235         MUTILS_EXCEPTION_HANDLER(m_testMode ? testKnownHosts() : checkForUpdates());
 236         qDebug("Update checker thread completed.");
 237 }
 238
 239 void UpdateChecker::checkForUpdates(void)
 240 {
 241         // ----- Initialization ----- //
 242
 243         m_success = false;
 244         m_updateInfo->resetInfo();
 245         seed_rand();
 246         setProgress(0);
 247
 248         // ----- Test Internet Connection ----- //
 249
 250         int connectionScore = 0;
 251         int maxConnectTries = (3 * MIN_CONNSCORE) / 2;
 252
 253         log("Checking internet connection...");
 254         setStatus(UpdateStatus_CheckingConnection);
 255
 256         const int networkStatus = OS::network_status();
 257         if(networkStatus == OS::NETWORK_TYPE_NON)
 258         {
 259                 log("", "Operating system reports that the computer is currently offline !!!");
 260                 setProgress(m_maxProgress);
 261                 setStatus(UpdateStatus_ErrorNoConnection);
 262                 return;
 263         }
 264
 265         setProgress(1);
 266
 267         // ----- Test Known Hosts Connectivity ----- //
 268
 269         QStringList hostList;
 270         for(int i = 0; known_hosts[i]; i++)
 271         {
 272                 hostList << QString::fromLatin1(known_hosts[i]);
 273         }
 274
 275         while(!(hostList.isEmpty() || (connectionScore >= MIN_CONNSCORE) || (maxConnectTries < 1)))
 276         {
 277                 switch(tryContactHost(hostList.takeAt(next_rand32() % hostList.count())))
 278                 {
 279                         case 01: connectionScore += 1; break;
 280                         case 02: connectionScore += 2; break;
 281                         default: maxConnectTries -= 1; break;
 282                 }
 283                 setProgress(qBound(1, connectionScore + 1, MIN_CONNSCORE + 1));
 284                 msleep(64);
 285         }
 286
 287         if(connectionScore < MIN_CONNSCORE)
 288         {
 289                 log("", "Connectivity test has failed: Internet connection appears to be broken!");
 290                 setProgress(m_maxProgress);
 291                 setStatus(UpdateStatus_ErrorConnectionTestFailed);
 292                 return;
 293         }
 294
 295         // ----- Build Mirror List ----- //
 296
 297         log("", "----", "", "Checking for updates online...");
 298         setStatus(UpdateStatus_FetchingUpdates);
 299
 300         QStringList mirrorList;
 301         for(int index = 0; update_mirrors_prim[index]; index++)
 302         {
 303                 mirrorList << QString::fromLatin1(update_mirrors_prim[index]);
 304         }
 305
 306         if(const int len = mirrorList.count())
 307         {
 308                 const int rounds = len * 1097;
 309                 for(int i = 0; i < rounds; i++)
 310                 {
 311                         mirrorList.swap(i % len, next_rand32() % len);
 312                 }
 313         }
 314
 315         for(int index = 0; update_mirrors_back[index]; index++)
 316         {
 317                 mirrorList << QString::fromLatin1(update_mirrors_back[index]);
 318         }
 319
 320         // ----- Fetch Update Info From Server ----- //
 321
 322         while(!mirrorList.isEmpty())
 323         {
 324                 QString currentMirror = mirrorList.takeFirst();
 325                 setProgress(m_progress + 1);
 326                 if(!m_success)
 327                 {
 328                         if(tryUpdateMirror(m_updateInfo, currentMirror))
 329                         {
 330                                 m_success = true;
 331                         }
 332                 }
 333                 else
 334                 {
 335                         msleep(64);
 336                 }
 337         }
 338
 339         setProgress(m_maxProgress);
 340
 341         if(m_success)
 342         {
 343                 if(m_updateInfo->m_buildNo > m_installedBuildNo)
 344                 {
 345                         setStatus(UpdateStatus_CompletedUpdateAvailable);
 346                 }
 347                 else if(m_updateInfo->m_buildNo == m_installedBuildNo)
 348                 {
 349                         setStatus(UpdateStatus_CompletedNoUpdates);
 350                 }
 351                 else
 352                 {
 353                         setStatus(UpdateStatus_CompletedNewVersionOlder);
 354                 }
 355         }
 356         else
 357         {
 358                 setStatus(UpdateStatus_ErrorFetchUpdateInfo);
 359         }
 360 }
 361
 362 void UpdateChecker::testKnownHosts(void)
 363 {
 364         QStringList hostList;
 365         for(int i = 0; known_hosts[i]; i++)
 366         {
 367                 hostList << QString::fromLatin1(known_hosts[i]);
 368         }
 369
 370         qDebug("\n[Known Hosts]");
 371         log("Testing all known hosts...", "", "---");
 372
 373         int hostCount = hostList.count();
 374         while(!hostList.isEmpty())
 375         {
 376                 QString currentHost = hostList.takeFirst();
 377                 qDebug("Testing: %s", currentHost.toLatin1().constData());
 378                 log("", "Testing:", currentHost, "");
 379                 QString outFile = QString("%1/%2.htm").arg(temp_folder(), rand_str());
 380                 bool httpOk = false;
 381                 if(!getFile(currentHost, outFile, 0, &httpOk))
 382                 {
 383                         if(httpOk)
 384                         {
 385                                 qWarning("\nConnectivity test was SLOW on the following site:\n%s\n", currentHost.toLatin1().constData());
 386                         }
 387                         else
 388                         {
 389                                 qWarning("\nConnectivity test FAILED on the following site:\n%s\n", currentHost.toLatin1().constData());
 390                         }
 391                 }
 392                 log("", "---");
 393                 QFile::remove(outFile);
 394         }
 395 }
 396
 397 ////////////////////////////////////////////////////////////
 398 // PRIVATE FUNCTIONS
 399 ////////////////////////////////////////////////////////////
 400
 401 void UpdateChecker::setStatus(const int status)
 402 {
 403         if(m_status != status)
 404         {
 405                 m_status = status;
 406                 emit statusChanged(status);
 407         }
 408 }
 409
 410 void UpdateChecker::setProgress(const int progress)
 411 {
 412         if(m_progress != progress)
 413         {
 414                 m_progress = progress;
 415                 emit progressChanged(progress);
 416         }
 417 }
 418
 419 void UpdateChecker::log(const QString &str1, const QString &str2, const QString &str3, const QString &str4)
 420 {
 421         if(!str1.isNull()) emit messageLogged(str1);
 422         if(!str2.isNull()) emit messageLogged(str2);
 423         if(!str3.isNull()) emit messageLogged(str3);
 424         if(!str4.isNull()) emit messageLogged(str4);
 425 }
 426
 427 int UpdateChecker::tryContactHost(const QString &url)
 428 {
 429                 int result = -1; bool httpOkay = false;
 430                 const QString outFile = QString("%1/%2.htm").arg(temp_folder(), rand_str());
 431                 log("", "Testing host:", url);
 432
 433                 if(getFile(url, outFile, 0, &httpOkay))
 434                 {
 435                         log("Connection to host was established successfully.");
 436                         result = 2;
 437                 }
 438                 else
 439                 {
 440                         if(httpOkay)
 441                         {
 442                                 log("Connection to host timed out after HTTP OK was received.");
 443                                 result = 1;
 444                         }
 445                         else
 446                         {
 447                                 log("Connection failed: The host could not be reached!");
 448                                 result = 0;
 449                         }
 450                 }
 451
 452                 QFile::remove(outFile);
 453                 return result;
 454 }
 455
 456 bool UpdateChecker::tryUpdateMirror(UpdateCheckerInfo *updateInfo, const QString &url)
 457 {
 458         bool success = false;
 459         log("", "Trying mirror:", url);
 460
 461         const QString randPart = rand_str();
 462         const QString outFileVers = QString("%1/%2.ver").arg(temp_folder(), randPart);
 463         const QString outFileSign = QString("%1/%2.sig").arg(temp_folder(), randPart);
 464
 465         if(getUpdateInfo(url, outFileVers, outFileSign))
 466         {
 467                 log("", "Download okay, checking signature:");
 468                 if(checkSignature(outFileVers, outFileSign))
 469                 {
 470                         log("", "Signature okay, parsing info:");
 471                         success = parseVersionInfo(outFileVers, updateInfo);
 472                 }
 473                 else
 474                 {
 475                         log("", "Bad signature, take care!");
 476                 }
 477         }
 478         else
 479         {
 480                 log("", "Download has failed!");
 481         }
 482
 483         QFile::remove(outFileVers);
 484         QFile::remove(outFileSign);
 485
 486         return success;
 487 }
 488
 489 bool UpdateChecker::getUpdateInfo(const QString &url, const QString &outFileVers, const QString &outFileSign)
 490 {
 491         log("", "Downloading update info:");
 492         if(!getFile(QString("%1%2"    ).arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileVers))
 493         {
 494                 return false;
 495         }
 496
 497         log("", "Downloading signature:");
 498         if(!getFile(QString("%1%2.sig").arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileSign))
 499         {
 500                 return false;
 501         }
 502
 503         return true;
 504 }
 505
 506 bool UpdateChecker::getFile(const QString &url, const QString &outFile, unsigned int maxRedir, bool *httpOk)
 507 {
 508         QFileInfo output(outFile);
 509         output.setCaching(false);
 510         if(httpOk) *httpOk = false;
 511
 512         if(output.exists())
 513         {
 514                 QFile::remove(output.canonicalFilePath());
 515                 if(output.exists())
 516                 {
 517                         return false;
 518                 }
 519         }
 520
 521         QProcess process;
 522         init_process(process, output.absolutePath());
 523
 524         QStringList args;
 525         args << "-T" << "15" << "--no-cache" << "--no-dns-cache" << QString().sprintf("--max-redirect=%u", maxRedir);
 526         args << QString("--referer=%1://%2/").arg(QUrl(url).scheme(), QUrl(url).host()) << "-U" << USER_AGENT_STR;
 527         args << "-O" << output.fileName() << url;
 528
 529         QEventLoop loop;
 530         connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
 531         connect(&process, SIGNAL(finished(int,QProcess::ExitStatus)), &loop, SLOT(quit()));
 532         connect(&process, SIGNAL(readyRead()), &loop, SLOT(quit()));
 533
 534         QTimer timer;
 535         timer.setSingleShot(true);
 536         timer.setInterval(25000);
 537         connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
 538
 539         const QRegExp httpResponseOK("200 OK$");
 540
 541         process.start(m_binaryWGet, args);
 542
 543         if(!process.waitForStarted())
 544         {
 545                 return false;
 546         }
 547
 548         timer.start();
 549
 550         while(process.state() != QProcess::NotRunning)
 551         {
 552                 loop.exec();
 553                 const bool bTimeOut = (!timer.isActive());
 554                 while(process.canReadLine())
 555                 {
 556                         QString line = QString::fromLatin1(process.readLine()).simplified();
 557                         if(line.contains(httpResponseOK))
 558                         {
 559                                 line.append(" [OK]");
 560                                 if(httpOk) *httpOk = true;
 561                         }
 562                         log(line);
 563                 }
 564                 if(bTimeOut)
 565                 {
 566                         qWarning("WGet process timed out <-- killing!");
 567                         process.kill();
 568                         process.waitForFinished();
 569                         log("!!! TIMEOUT !!!");
 570                         return false;
 571                 }
 572         }
 573
 574         timer.stop();
 575         timer.disconnect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
 576
 577         log(QString().sprintf("Exited with code %d", process.exitCode()));
 578         return (process.exitCode() == 0) && output.exists() && output.isFile();
 579 }
 580
 581 bool UpdateChecker::checkSignature(const QString &file, const QString &signature)
 582 {
 583         if(QFileInfo(file).absolutePath().compare(QFileInfo(signature).absolutePath(), Qt::CaseInsensitive) != 0)
 584         {
 585                 qWarning("CheckSignature: File and signature should be in same folder!");
 586                 return false;
 587         }
 588         if(QFileInfo(file).absolutePath().compare(QFileInfo(m_binaryKeys).absolutePath(), Qt::CaseInsensitive) != 0)
 589         {
 590                 qWarning("CheckSignature: File and keyring should be in same folder!");
 591                 return false;
 592         }
 593
 594         QProcess process;
 595         init_process(process, QFileInfo(file).absolutePath());
 596
 597         QEventLoop loop;
 598         connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
 599         connect(&process, SIGNAL(finished(int,QProcess::ExitStatus)), &loop, SLOT(quit()));
 600         connect(&process, SIGNAL(readyRead()), &loop, SLOT(quit()));
 601
 602         process.start(m_binaryGnuPG, QStringList() << "--homedir" << "." << "--keyring" << QFileInfo(m_binaryKeys).fileName() << QFileInfo(signature).fileName() << QFileInfo(file).fileName());
 603
 604         if(!process.waitForStarted())
 605         {
 606                 return false;
 607         }
 608
 609         while(process.state() == QProcess::Running)
 610         {
 611                 loop.exec();
 612                 while(process.canReadLine())
 613                 {
 614                         log(QString::fromLatin1(process.readLine()).simplified());
 615                 }
 616         }
 617
 618         log(QString().sprintf("Exited with code %d", process.exitCode()));
 619         return (process.exitCode() == 0);
 620 }
 621
 622 bool UpdateChecker::parseVersionInfo(const QString &file, UpdateCheckerInfo *updateInfo)
 623 {
 624         QRegExp value("^(\\w+)=(.+)$");
 625         QRegExp section("^\\[(.+)\\]$");
 626
 627         QDate updateInfoDate;
 628         updateInfo->resetInfo();
 629
 630         QFile data(file);
 631         if(!data.open(QIODevice::ReadOnly))
 632         {
 633                 qWarning("Cannot open update info file for reading!");
 634                 return false;
 635         }
 636
 637         bool inHdr = false;
 638         bool inSec = false;
 639
 640         while(!data.atEnd())
 641         {
 642                 QString line = QString::fromLatin1(data.readLine()).trimmed();
 643                 if(section.indexIn(line) >= 0)
 644                 {
 645                         log(QString("Sec: [%1]").arg(section.cap(1)));
 646                         inSec = (section.cap(1).compare(m_applicationId, Qt::CaseInsensitive) == 0);
 647                         inHdr = (section.cap(1).compare(QString::fromLatin1(header_id), Qt::CaseInsensitive) == 0);
 648                         continue;
 649                 }
 650                 if(inSec && (value.indexIn(line) >= 0))
 651                 {
 652                         log(QString("Val: '%1' ==> '%2").arg(value.cap(1), value.cap(2)));
 653                         if(value.cap(1).compare("BuildNo", Qt::CaseInsensitive) == 0)
 654                         {
 655                                 bool ok = false;
 656                                 unsigned int temp = value.cap(2).toUInt(&ok);
 657                                 if(ok) updateInfo->m_buildNo = temp;
 658                         }
 659                         else if(value.cap(1).compare("BuildDate", Qt::CaseInsensitive) == 0)
 660                         {
 661                                 QDate temp = QDate::fromString(value.cap(2).trimmed(), Qt::ISODate);
 662                                 if(temp.isValid()) updateInfo->m_buildDate = temp;
 663                         }
 664                         else if(value.cap(1).compare("DownloadSite", Qt::CaseInsensitive) == 0)
 665                         {
 666                                 updateInfo->m_downloadSite = value.cap(2).trimmed();
 667                         }
 668                         else if(value.cap(1).compare("DownloadAddress", Qt::CaseInsensitive) == 0)
 669                         {
 670                                 updateInfo->m_downloadAddress = value.cap(2).trimmed();
 671                         }
 672                         else if(value.cap(1).compare("DownloadFilename", Qt::CaseInsensitive) == 0)
 673                         {
 674                                 updateInfo->m_downloadFilename = value.cap(2).trimmed();
 675                         }
 676                         else if(value.cap(1).compare("DownloadFilecode", Qt::CaseInsensitive) == 0)
 677                         {
 678                                 updateInfo->m_downloadFilecode = value.cap(2).trimmed();
 679                         }
 680                 }
 681                 if(inHdr && (value.indexIn(line) >= 0))
 682                 {
 683                         log(QString("Val: '%1' ==> '%2").arg(value.cap(1), value.cap(2)));
 684                         if(value.cap(1).compare("TimestampCreated", Qt::CaseInsensitive) == 0)
 685                         {
 686                                 QDate temp = QDate::fromString(value.cap(2).trimmed(), Qt::ISODate);
 687                                 if(temp.isValid()) updateInfoDate = temp;
 688                         }
 689                 }
 690         }
 691
 692         if(!updateInfoDate.isValid())
 693         {
 694                 updateInfo->resetInfo();
 695                 log("WARNING: Version info timestamp is missing!");
 696                 return false;
 697         }
 698
 699         const QDate currentDate = OS::current_date();
 700         if(updateInfoDate.addMonths(VERSION_INFO_EXPIRES_MONTHS) < currentDate)
 701         {
 702                 updateInfo->resetInfo();
 703                 log(QString::fromLatin1("WARNING: This version info has expired at %1!").arg(updateInfoDate.addMonths(VERSION_INFO_EXPIRES_MONTHS).toString(Qt::ISODate)));
 704                 return false;
 705         }
 706         else if(currentDate < updateInfoDate)
 707         {
 708                 log("Version info is from the future, take care!");
 709                 qWarning("Version info is from the future, take care!");
 710         }
 711
 712         bool complete = true;
 713
 714         if(!(updateInfo->m_buildNo > 0)) complete = false;
 715         if(!(updateInfo->m_buildDate.year() >= 2010)) complete = false;
 716         if(updateInfo->m_downloadSite.isEmpty()) complete = false;
 717         if(updateInfo->m_downloadAddress.isEmpty()) complete = false;
 718         if(updateInfo->m_downloadFilename.isEmpty()) complete = false;
 719         if(updateInfo->m_downloadFilecode.isEmpty()) complete = false;
 720
 721         if(!complete)
 722         {
 723                 log("WARNING: Version info is incomplete!");
 724         }
 725
 726         return complete;
 727 }
 728
 729 ////////////////////////////////////////////////////////////
 730 // SLOTS
 731 ////////////////////////////////////////////////////////////
 732
 733 /*NONE*/
 734
 735 ////////////////////////////////////////////////////////////
 736 // EVENTS
 737 ////////////////////////////////////////////////////////////
 738
 739 /*NONE*/