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 }
 211
 212 ////////////////////////////////////////////////////////////
 213 // Constructor & Destructor
 214 ////////////////////////////////////////////////////////////
 215
 216 UpdateChecker::UpdateChecker(const QString &binWGet, const QString &binGnuPG, const QString &binKeys, const QString &applicationId, const quint32 &installedBuildNo, const bool betaUpdates, const bool testMode)
 217 :
 218         m_updateInfo(new UpdateCheckerInfo()),
 219         m_binaryWGet(binWGet),
 220         m_binaryGnuPG(binGnuPG),
 221         m_binaryKeys(binKeys),
 222         m_applicationId(applicationId),
 223         m_installedBuildNo(installedBuildNo),
 224         m_betaUpdates(betaUpdates),
 225         m_testMode(testMode),
 226         m_maxProgress(getMaxProgress())
 227 {
 228         m_success = false;
 229         m_status = UpdateStatus_NotStartedYet;
 230         m_progress = 0;
 231
 232         if(m_binaryWGet.isEmpty() || m_binaryGnuPG.isEmpty() || m_binaryKeys.isEmpty())
 233         {
 234                 MUTILS_THROW("Tools not initialized correctly!");
 235         }
 236 }
 237
 238 UpdateChecker::~UpdateChecker(void)
 239 {
 240         delete m_updateInfo;
 241 }
 242
 243 ////////////////////////////////////////////////////////////
 244 // Protected functions
 245 ////////////////////////////////////////////////////////////
 246
 247 void UpdateChecker::run(void)
 248 {
 249         qDebug("Update checker thread started!");
 250         MUTILS_EXCEPTION_HANDLER(m_testMode ? testKnownHosts() : checkForUpdates());
 251         qDebug("Update checker thread completed.");
 252 }
 253
 254 void UpdateChecker::checkForUpdates(void)
 255 {
 256         // ----- Initialization ----- //
 257
 258         m_success = false;
 259         m_updateInfo->resetInfo();
 260         seed_rand();
 261         setProgress(0);
 262
 263         // ----- Test Internet Connection ----- //
 264
 265         int connectionScore = 0;
 266         int maxConnectTries = (3 * MIN_CONNSCORE) / 2;
 267
 268         log("Checking internet connection...");
 269         setStatus(UpdateStatus_CheckingConnection);
 270
 271         const int networkStatus = OS::network_status();
 272         if(networkStatus == OS::NETWORK_TYPE_NON)
 273         {
 274                 log("", "Operating system reports that the computer is currently offline !!!");
 275                 setProgress(m_maxProgress);
 276                 setStatus(UpdateStatus_ErrorNoConnection);
 277                 return;
 278         }
 279
 280         setProgress(1);
 281
 282         // ----- Test Known Hosts Connectivity ----- //
 283
 284         QStringList hostList;
 285         for(int i = 0; known_hosts[i]; i++)
 286         {
 287                 hostList << QString::fromLatin1(known_hosts[i]);
 288         }
 289
 290         while(!(hostList.isEmpty() || (connectionScore >= MIN_CONNSCORE) || (maxConnectTries < 1)))
 291         {
 292                 switch(tryContactHost(hostList.takeAt(next_rand32() % hostList.count())))
 293                 {
 294                         case 01: connectionScore += 1; break;
 295                         case 02: connectionScore += 2; break;
 296                         default: maxConnectTries -= 1; break;
 297                 }
 298                 setProgress(qBound(1, connectionScore + 1, MIN_CONNSCORE + 1));
 299                 msleep(64);
 300         }
 301
 302         if(connectionScore < MIN_CONNSCORE)
 303         {
 304                 log("", "Connectivity test has failed: Internet connection appears to be broken!");
 305                 setProgress(m_maxProgress);
 306                 setStatus(UpdateStatus_ErrorConnectionTestFailed);
 307                 return;
 308         }
 309
 310         // ----- Build Mirror List ----- //
 311
 312         log("", "----", "", "Checking for updates online...");
 313         setStatus(UpdateStatus_FetchingUpdates);
 314
 315         QStringList mirrorList;
 316         for(int index = 0; update_mirrors_prim[index]; index++)
 317         {
 318                 mirrorList << QString::fromLatin1(update_mirrors_prim[index]);
 319         }
 320
 321         if(const int len = mirrorList.count())
 322         {
 323                 const int rounds = len * 1097;
 324                 for(int i = 0; i < rounds; i++)
 325                 {
 326                         mirrorList.swap(i % len, next_rand32() % len);
 327                 }
 328         }
 329
 330         for(int index = 0; update_mirrors_back[index]; index++)
 331         {
 332                 mirrorList << QString::fromLatin1(update_mirrors_back[index]);
 333         }
 334
 335         // ----- Fetch Update Info From Server ----- //
 336
 337         while(!mirrorList.isEmpty())
 338         {
 339                 QString currentMirror = mirrorList.takeFirst();
 340                 setProgress(m_progress + 1);
 341                 if(!m_success)
 342                 {
 343                         if(tryUpdateMirror(m_updateInfo, currentMirror))
 344                         {
 345                                 m_success = true;
 346                         }
 347                 }
 348                 else
 349                 {
 350                         msleep(64);
 351                 }
 352         }
 353
 354         setProgress(m_maxProgress);
 355
 356         if(m_success)
 357         {
 358                 if(m_updateInfo->m_buildNo > m_installedBuildNo)
 359                 {
 360                         setStatus(UpdateStatus_CompletedUpdateAvailable);
 361                 }
 362                 else if(m_updateInfo->m_buildNo == m_installedBuildNo)
 363                 {
 364                         setStatus(UpdateStatus_CompletedNoUpdates);
 365                 }
 366                 else
 367                 {
 368                         setStatus(UpdateStatus_CompletedNewVersionOlder);
 369                 }
 370         }
 371         else
 372         {
 373                 setStatus(UpdateStatus_ErrorFetchUpdateInfo);
 374         }
 375 }
 376
 377 void UpdateChecker::testKnownHosts(void)
 378 {
 379         QStringList hostList;
 380         for(int i = 0; known_hosts[i]; i++)
 381         {
 382                 hostList << QString::fromLatin1(known_hosts[i]);
 383         }
 384
 385         qDebug("\n[Known Hosts]");
 386         log("Testing all known hosts...", "", "---");
 387
 388         int hostCount = hostList.count();
 389         while(!hostList.isEmpty())
 390         {
 391                 QString currentHost = hostList.takeFirst();
 392                 qDebug("Testing: %s", currentHost.toLatin1().constData());
 393                 log("", "Testing:", currentHost, "");
 394                 QString outFile = QString("%1/%2.htm").arg(temp_folder(), rand_str());
 395                 bool httpOk = false;
 396                 if(!getFile(currentHost, outFile, 0, &httpOk))
 397                 {
 398                         if(httpOk)
 399                         {
 400                                 qWarning("\nConnectivity test was SLOW on the following site:\n%s\n", currentHost.toLatin1().constData());
 401                         }
 402                         else
 403                         {
 404                                 qWarning("\nConnectivity test FAILED on the following site:\n%s\n", currentHost.toLatin1().constData());
 405                         }
 406                 }
 407                 log("", "---");
 408                 QFile::remove(outFile);
 409         }
 410 }
 411
 412 ////////////////////////////////////////////////////////////
 413 // PRIVATE FUNCTIONS
 414 ////////////////////////////////////////////////////////////
 415
 416 void UpdateChecker::setStatus(const int status)
 417 {
 418         if(m_status != status)
 419         {
 420                 m_status = status;
 421                 emit statusChanged(status);
 422         }
 423 }
 424
 425 void UpdateChecker::setProgress(const int progress)
 426 {
 427         if(m_progress != progress)
 428         {
 429                 m_progress = progress;
 430                 emit progressChanged(progress);
 431         }
 432 }
 433
 434 void UpdateChecker::log(const QString &str1, const QString &str2, const QString &str3, const QString &str4)
 435 {
 436         if(!str1.isNull()) emit messageLogged(str1);
 437         if(!str2.isNull()) emit messageLogged(str2);
 438         if(!str3.isNull()) emit messageLogged(str3);
 439         if(!str4.isNull()) emit messageLogged(str4);
 440 }
 441
 442 int UpdateChecker::tryContactHost(const QString &url)
 443 {
 444                 int result = -1; bool httpOkay = false;
 445                 const QString outFile = QString("%1/%2.htm").arg(temp_folder(), rand_str());
 446                 log("", "Testing host:", url);
 447
 448                 if(getFile(url, outFile, 0, &httpOkay))
 449                 {
 450                         log("Connection to host was established successfully.");
 451                         result = 2;
 452                 }
 453                 else
 454                 {
 455                         if(httpOkay)
 456                         {
 457                                 log("Connection to host timed out after HTTP OK was received.");
 458                                 result = 1;
 459                         }
 460                         else
 461                         {
 462                                 log("Connection failed: The host could not be reached!");
 463                                 result = 0;
 464                         }
 465                 }
 466
 467                 QFile::remove(outFile);
 468                 return result;
 469 }
 470
 471 bool UpdateChecker::tryUpdateMirror(UpdateCheckerInfo *updateInfo, const QString &url)
 472 {
 473         bool success = false;
 474         log("", "Trying mirror:", url);
 475
 476         const QString randPart = rand_str();
 477         const QString outFileVers = QString("%1/%2.ver").arg(temp_folder(), randPart);
 478         const QString outFileSign = QString("%1/%2.sig").arg(temp_folder(), randPart);
 479
 480         if(getUpdateInfo(url, outFileVers, outFileSign))
 481         {
 482                 log("", "Download okay, checking signature:");
 483                 if(checkSignature(outFileVers, outFileSign))
 484                 {
 485                         log("", "Signature okay, parsing info:");
 486                         success = parseVersionInfo(outFileVers, updateInfo);
 487                 }
 488                 else
 489                 {
 490                         log("", "Bad signature, take care!");
 491                 }
 492         }
 493         else
 494         {
 495                 log("", "Download has failed!");
 496         }
 497
 498         QFile::remove(outFileVers);
 499         QFile::remove(outFileSign);
 500
 501         return success;
 502 }
 503
 504 bool UpdateChecker::getUpdateInfo(const QString &url, const QString &outFileVers, const QString &outFileSign)
 505 {
 506         log("", "Downloading update info:");
 507         if(!getFile(QString("%1%2"    ).arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileVers))
 508         {
 509                 return false;
 510         }
 511
 512         log("", "Downloading signature:");
 513         if(!getFile(QString("%1%2.sig").arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileSign))
 514         {
 515                 return false;
 516         }
 517
 518         return true;
 519 }
 520
 521 bool UpdateChecker::getFile(const QString &url, const QString &outFile, unsigned int maxRedir, bool *httpOk)
 522 {
 523         QFileInfo output(outFile);
 524         output.setCaching(false);
 525         if(httpOk) *httpOk = false;
 526
 527         if(output.exists())
 528         {
 529                 QFile::remove(output.canonicalFilePath());
 530                 if(output.exists())
 531                 {
 532                         return false;
 533                 }
 534         }
 535
 536         QProcess process;
 537         init_process(process, output.absolutePath());
 538
 539         QStringList args;
 540         args << "-T" << "15" << "--no-cache" << "--no-dns-cache" << QString().sprintf("--max-redirect=%u", maxRedir);
 541         args << QString("--referer=%1://%2/").arg(QUrl(url).scheme(), QUrl(url).host()) << "-U" << USER_AGENT_STR;
 542         args << "-O" << output.fileName() << url;
 543
 544         QEventLoop loop;
 545         connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
 546         connect(&process, SIGNAL(finished(int,QProcess::ExitStatus)), &loop, SLOT(quit()));
 547         connect(&process, SIGNAL(readyRead()), &loop, SLOT(quit()));
 548
 549         QTimer timer;
 550         timer.setSingleShot(true);
 551         timer.setInterval(25000);
 552         connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
 553
 554         const QRegExp httpResponseOK("200 OK$");
 555
 556         process.start(m_binaryWGet, args);
 557
 558         if(!process.waitForStarted())
 559         {
 560                 return false;
 561         }
 562
 563         timer.start();
 564
 565         while(process.state() != QProcess::NotRunning)
 566         {
 567                 loop.exec();
 568                 const bool bTimeOut = (!timer.isActive());
 569                 while(process.canReadLine())
 570                 {
 571                         QString line = QString::fromLatin1(process.readLine()).simplified();
 572                         if(line.contains(httpResponseOK))
 573                         {
 574                                 line.append(" [OK]");
 575                                 if(httpOk) *httpOk = true;
 576                         }
 577                         log(line);
 578                 }
 579                 if(bTimeOut)
 580                 {
 581                         qWarning("WGet process timed out <-- killing!");
 582                         process.kill();
 583                         process.waitForFinished();
 584                         log("!!! TIMEOUT !!!");
 585                         return false;
 586                 }
 587         }
 588
 589         timer.stop();
 590         timer.disconnect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
 591
 592         log(QString().sprintf("Exited with code %d", process.exitCode()));
 593         return (process.exitCode() == 0) && output.exists() && output.isFile();
 594 }
 595
 596 bool UpdateChecker::checkSignature(const QString &file, const QString &signature)
 597 {
 598         if(QFileInfo(file).absolutePath().compare(QFileInfo(signature).absolutePath(), Qt::CaseInsensitive) != 0)
 599         {
 600                 qWarning("CheckSignature: File and signature should be in same folder!");
 601                 return false;
 602         }
 603
 604         if(QFileInfo(file).absolutePath().compare(QFileInfo(m_binaryKeys).absolutePath(), Qt::CaseInsensitive) != 0)
 605         {
 606                 qWarning("CheckSignature: File and keyring should be in same folder!");
 607                 return false;
 608         }
 609
 610         QProcess process;
 611         init_process(process, QFileInfo(file).absolutePath());
 612
 613         QEventLoop loop;
 614         connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
 615         connect(&process, SIGNAL(finished(int,QProcess::ExitStatus)), &loop, SLOT(quit()));
 616         connect(&process, SIGNAL(readyRead()), &loop, SLOT(quit()));
 617
 618         process.start(m_binaryGnuPG, QStringList() << "--homedir" << "." << "--keyring" << QFileInfo(m_binaryKeys).fileName() << QFileInfo(signature).fileName() << QFileInfo(file).fileName());
 619
 620         if(!process.waitForStarted())
 621         {
 622                 return false;
 623         }
 624
 625         while(process.state() == QProcess::Running)
 626         {
 627                 loop.exec();
 628                 while(process.canReadLine())
 629                 {
 630                         log(QString::fromLatin1(process.readLine()).simplified());
 631                 }
 632         }
 633
 634         log(QString().sprintf("Exited with code %d", process.exitCode()));
 635         return (process.exitCode() == 0);
 636 }
 637
 638 bool UpdateChecker::parseVersionInfo(const QString &file, UpdateCheckerInfo *updateInfo)
 639 {
 640         QRegExp value("^(\\w+)=(.+)$");
 641         QRegExp section("^\\[(.+)\\]$");
 642
 643         QDate updateInfoDate;
 644         updateInfo->resetInfo();
 645
 646         QFile data(file);
 647         if(!data.open(QIODevice::ReadOnly))
 648         {
 649                 qWarning("Cannot open update info file for reading!");
 650                 return false;
 651         }
 652
 653         bool inHdr = false;
 654         bool inSec = false;
 655
 656         while(!data.atEnd())
 657         {
 658                 QString line = QString::fromLatin1(data.readLine()).trimmed();
 659                 if(section.indexIn(line) >= 0)
 660                 {
 661                         log(QString("Sec: [%1]").arg(section.cap(1)));
 662                         inSec = (section.cap(1).compare(m_applicationId, Qt::CaseInsensitive) == 0);
 663                         inHdr = (section.cap(1).compare(QString::fromLatin1(header_id), Qt::CaseInsensitive) == 0);
 664                         continue;
 665                 }
 666                 if(inSec && (value.indexIn(line) >= 0))
 667                 {
 668                         log(QString("Val: '%1' ==> '%2").arg(value.cap(1), value.cap(2)));
 669                         if(value.cap(1).compare("BuildNo", Qt::CaseInsensitive) == 0)
 670                         {
 671                                 bool ok = false;
 672                                 unsigned int temp = value.cap(2).toUInt(&ok);
 673                                 if(ok) updateInfo->m_buildNo = temp;
 674                         }
 675                         else if(value.cap(1).compare("BuildDate", Qt::CaseInsensitive) == 0)
 676                         {
 677                                 QDate temp = QDate::fromString(value.cap(2).trimmed(), Qt::ISODate);
 678                                 if(temp.isValid()) updateInfo->m_buildDate = temp;
 679                         }
 680                         else if(value.cap(1).compare("DownloadSite", Qt::CaseInsensitive) == 0)
 681                         {
 682                                 updateInfo->m_downloadSite = value.cap(2).trimmed();
 683                         }
 684                         else if(value.cap(1).compare("DownloadAddress", Qt::CaseInsensitive) == 0)
 685                         {
 686                                 updateInfo->m_downloadAddress = value.cap(2).trimmed();
 687                         }
 688                         else if(value.cap(1).compare("DownloadFilename", Qt::CaseInsensitive) == 0)
 689                         {
 690                                 updateInfo->m_downloadFilename = value.cap(2).trimmed();
 691                         }
 692                         else if(value.cap(1).compare("DownloadFilecode", Qt::CaseInsensitive) == 0)
 693                         {
 694                                 updateInfo->m_downloadFilecode = value.cap(2).trimmed();
 695                         }
 696                 }
 697                 if(inHdr && (value.indexIn(line) >= 0))
 698                 {
 699                         log(QString("Val: '%1' ==> '%2").arg(value.cap(1), value.cap(2)));
 700                         if(value.cap(1).compare("TimestampCreated", Qt::CaseInsensitive) == 0)
 701                         {
 702                                 QDate temp = QDate::fromString(value.cap(2).trimmed(), Qt::ISODate);
 703                                 if(temp.isValid()) updateInfoDate = temp;
 704                         }
 705                 }
 706         }
 707
 708         if(!updateInfoDate.isValid())
 709         {
 710                 updateInfo->resetInfo();
 711                 log("WARNING: Version info timestamp is missing!");
 712                 return false;
 713         }
 714
 715         const QDate currentDate = OS::current_date();
 716         if(updateInfoDate.addMonths(VERSION_INFO_EXPIRES_MONTHS) < currentDate)
 717         {
 718                 updateInfo->resetInfo();
 719                 log(QString::fromLatin1("WARNING: This version info has expired at %1!").arg(updateInfoDate.addMonths(VERSION_INFO_EXPIRES_MONTHS).toString(Qt::ISODate)));
 720                 return false;
 721         }
 722         else if(currentDate < updateInfoDate)
 723         {
 724                 log("Version info is from the future, take care!");
 725                 qWarning("Version info is from the future, take care!");
 726         }
 727
 728         bool complete = true;
 729
 730         if(!(updateInfo->m_buildNo > 0)) complete = false;
 731         if(!(updateInfo->m_buildDate.year() >= 2010)) complete = false;
 732         if(updateInfo->m_downloadSite.isEmpty()) complete = false;
 733         if(updateInfo->m_downloadAddress.isEmpty()) complete = false;
 734         if(updateInfo->m_downloadFilename.isEmpty()) complete = false;
 735         if(updateInfo->m_downloadFilecode.isEmpty()) complete = false;
 736
 737         if(!complete)
 738         {
 739                 log("WARNING: Version info is incomplete!");
 740         }
 741
 742         return complete;
 743 }
 744
 745 ////////////////////////////////////////////////////////////
 746 // SLOTS
 747 ////////////////////////////////////////////////////////////
 748
 749 /*NONE*/
 750
 751 ////////////////////////////////////////////////////////////
 752 // EVENTS
 753 ////////////////////////////////////////////////////////////
 754
 755 /*NONE*/