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