src/UpdateChecker.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2018 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 <QDir>
  31 #include <QProcess>
  32 #include <QUrl>
  33 #include <QEventLoop>
  34 #include <QTimer>
  35 #include <QElapsedTimer>
  36 #include <QSet>
  37 #include <QHash>
  38
  39 #include "Mirrors.h"
  40
  41 ///////////////////////////////////////////////////////////////////////////////
  42 // CONSTANTS
  43 ///////////////////////////////////////////////////////////////////////////////
  44
  45 static const char *header_id = "!Update";
  46
  47 static const char *mirror_url_postfix[] =
  48 {
  49         "update.ver",
  50         "update_beta.ver",
  51         NULL
  52 };
  53
  54 static const int MIN_CONNSCORE = 5;
  55 static const int QUICK_MIRRORS = 3;
  56 static const int MAX_CONN_TIMEOUT = 16000;
  57 static const int DOWNLOAD_TIMEOUT = 30000;
  58
  59 static const int VERSION_INFO_EXPIRES_MONTHS = 6;
  60 static char *USER_AGENT_STR = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0"; /*use something innocuous*/
  61
  62 #define CHECK_CANCELLED() do \
  63 { \
  64         if(MUTILS_BOOLIFY(m_cancelled)) \
  65         { \
  66                 m_success.fetchAndStoreOrdered(0); \
  67                 log("", "Update check has been cancelled by user!"); \
  68                 setProgress(m_maxProgress); \
  69                 setStatus(UpdateStatus_CancelledByUser); \
  70                 return; \
  71         } \
  72 } \
  73 while(0)
  74
  75 ////////////////////////////////////////////////////////////
  76 // Helper Functions
  77 ////////////////////////////////////////////////////////////
  78
  79 static int getMaxProgress(void)
  80 {
  81         int counter = 0;
  82         while (update_mirrors[counter])
  83         {
  84                 counter++;
  85         }
  86         counter += MIN_CONNSCORE + QUICK_MIRRORS + 2;
  87         return counter; ;
  88 }
  89
  90 static QStringList buildRandomList(const char *const values[])
  91 {
  92         QStringList list;
  93         for (int index = 0; values[index]; index++)
  94         {
  95                 const int pos = MUtils::next_rand_u32() % (index + 1);
  96                 list.insert(pos, QString::fromLatin1(values[index]));
  97         }
  98         return list;
  99 }
 100
 101 static const QHash<QString, QString> *initEnvVars(void)
 102 {
 103         QHash<QString, QString> *const environment = new QHash<QString, QString>();
 104         environment->insert(QLatin1String("CURL_HOME"), QDir::toNativeSeparators(MUtils::temp_folder()));
 105         return environment;
 106 }
 107
 108 ////////////////////////////////////////////////////////////
 109 // Update Info Class
 110 ////////////////////////////////////////////////////////////
 111
 112 MUtils::UpdateCheckerInfo::UpdateCheckerInfo(void)
 113 {
 114         resetInfo();
 115 }
 116
 117 void MUtils::UpdateCheckerInfo::resetInfo(void)
 118 {
 119         m_buildNo = 0;
 120         m_buildDate.setDate(1900, 1, 1);
 121         m_downloadSite.clear();
 122         m_downloadAddress.clear();
 123         m_downloadFilename.clear();
 124         m_downloadFilecode.clear();
 125         m_downloadChecksum.clear();
 126 }
 127
 128 bool MUtils::UpdateCheckerInfo::isComplete(void)
 129 {
 130         if(this->m_buildNo < 1)                return false;
 131         if(this->m_buildDate.year() < 2010)    return false;
 132         if(this->m_downloadSite.isEmpty())     return false;
 133         if(this->m_downloadAddress.isEmpty())  return false;
 134         if(this->m_downloadFilename.isEmpty()) return false;
 135         if(this->m_downloadFilecode.isEmpty()) return false;
 136         if(this->m_downloadChecksum.isEmpty()) return false;
 137
 138         return true;
 139 }
 140
 141 ////////////////////////////////////////////////////////////
 142 // Constructor & Destructor
 143 ////////////////////////////////////////////////////////////
 144
 145 MUtils::UpdateChecker::UpdateChecker(const QString &binCurl, const QString &binGnuPG, const QString &binKeys, const QString &applicationId, const quint32 &installedBuildNo, const bool betaUpdates, const bool testMode)
 146 :
 147         m_updateInfo(new UpdateCheckerInfo()),
 148         m_binaryCurl(binCurl),
 149         m_binaryGnuPG(binGnuPG),
 150         m_binaryKeys(binKeys),
 151         m_applicationId(applicationId),
 152         m_installedBuildNo(installedBuildNo),
 153         m_betaUpdates(betaUpdates),
 154         m_testMode(testMode),
 155         m_maxProgress(getMaxProgress()),
 156         m_environment(initEnvVars())
 157 {
 158         m_status = UpdateStatus_NotStartedYet;
 159         m_progress = 0;
 160
 161         if(m_binaryCurl.isEmpty() || m_binaryGnuPG.isEmpty() || m_binaryKeys.isEmpty())
 162         {
 163                 MUTILS_THROW("Tools not initialized correctly!");
 164         }
 165 }
 166
 167 MUtils::UpdateChecker::~UpdateChecker(void)
 168 {
 169 }
 170
 171 ////////////////////////////////////////////////////////////
 172 // Public slots
 173 ////////////////////////////////////////////////////////////
 174
 175 void MUtils::UpdateChecker::start(Priority priority)
 176 {
 177         m_success.fetchAndStoreOrdered(0);
 178         m_cancelled.fetchAndStoreOrdered(0);
 179         QThread::start(priority);
 180 }
 181
 182 ////////////////////////////////////////////////////////////
 183 // Protected functions
 184 ////////////////////////////////////////////////////////////
 185
 186 void MUtils::UpdateChecker::run(void)
 187 {
 188         qDebug("Update checker thread started!");
 189         MUTILS_EXCEPTION_HANDLER(m_testMode ? testMirrorsList() : checkForUpdates());
 190         qDebug("Update checker thread completed.");
 191 }
 192
 193 void MUtils::UpdateChecker::checkForUpdates(void)
 194 {
 195         // ----- Initialization ----- //
 196
 197         m_updateInfo->resetInfo();
 198         setProgress(0);
 199
 200         // ----- Test Internet Connection ----- //
 201
 202         log("Checking your Internet connection...", "");
 203         setStatus(UpdateStatus_CheckingConnection);
 204
 205         const int networkStatus = OS::network_status();
 206         if(networkStatus == OS::NETWORK_TYPE_NON)
 207         {
 208                 log("Operating system reports that the computer is currently offline !!!");
 209                 setProgress(m_maxProgress);
 210                 setStatus(UpdateStatus_ErrorNoConnection);
 211                 return;
 212         }
 213
 214         msleep(500);
 215         setProgress(1);
 216
 217         // ----- Test Known Hosts Connectivity ----- //
 218
 219         int connectionScore = 0;
 220         QStringList mirrorList = buildRandomList(known_hosts);
 221
 222         for(int connectionTimout = 1000; connectionTimout <= MAX_CONN_TIMEOUT; connectionTimout *= 2)
 223         {
 224                 QElapsedTimer elapsedTimer;
 225                 elapsedTimer.start();
 226                 const int globalTimout = 2 * MIN_CONNSCORE * connectionTimout;
 227                 while (!elapsedTimer.hasExpired(globalTimout))
 228                 {
 229                         const QString hostName = mirrorList.takeFirst();
 230                         if (tryContactHost(hostName, connectionTimout))
 231                         {
 232                                 connectionScore += 1;
 233                                 setProgress(qBound(1, connectionScore + 1, MIN_CONNSCORE + 1));
 234                                 elapsedTimer.restart();
 235                                 if (connectionScore >= MIN_CONNSCORE)
 236                                 {
 237                                         goto endLoop; /*success*/
 238                                 }
 239                         }
 240                         else
 241                         {
 242                                 mirrorList.append(hostName); /*re-schedule*/
 243                         }
 244                         CHECK_CANCELLED();
 245                         msleep(1);
 246                 }
 247         }
 248
 249 endLoop:
 250         if(connectionScore < MIN_CONNSCORE)
 251         {
 252                 log("", "Connectivity test has failed: Internet connection appears to be broken!");
 253                 setProgress(m_maxProgress);
 254                 setStatus(UpdateStatus_ErrorConnectionTestFailed);
 255                 return;
 256         }
 257
 258         // ----- Fetch Update Info From Server ----- //
 259
 260         log("----", "", "Internet connection is operational, checking for updates online...");
 261         setStatus(UpdateStatus_FetchingUpdates);
 262
 263         int mirrorCount = 0;
 264         mirrorList = buildRandomList(update_mirrors);
 265
 266         while(!mirrorList.isEmpty())
 267         {
 268                 setProgress(m_progress + 1);
 269                 const QString currentMirror = mirrorList.takeFirst();
 270                 const bool isQuick = (mirrorCount++ < QUICK_MIRRORS);
 271                 if(tryUpdateMirror(m_updateInfo.data(), currentMirror, isQuick))
 272                 {
 273                         m_success.ref(); /*success*/
 274                         break;
 275                 }
 276                 if (isQuick)
 277                 {
 278                         mirrorList.append(currentMirror); /*re-schedule*/
 279                 }
 280                 CHECK_CANCELLED();
 281                 msleep(1);
 282         }
 283
 284         while (m_progress < m_maxProgress)
 285         {
 286                 msleep(16);
 287                 setProgress(m_progress + 1);
 288                 CHECK_CANCELLED();
 289         }
 290
 291         // ----- Generate final result ----- //
 292
 293         if(MUTILS_BOOLIFY(m_success))
 294         {
 295                 if(m_updateInfo->m_buildNo > m_installedBuildNo)
 296                 {
 297                         setStatus(UpdateStatus_CompletedUpdateAvailable);
 298                 }
 299                 else if(m_updateInfo->m_buildNo == m_installedBuildNo)
 300                 {
 301                         setStatus(UpdateStatus_CompletedNoUpdates);
 302                 }
 303                 else
 304                 {
 305                         setStatus(UpdateStatus_CompletedNewVersionOlder);
 306                 }
 307         }
 308         else
 309         {
 310                 setStatus(UpdateStatus_ErrorFetchUpdateInfo);
 311         }
 312 }
 313
 314 void MUtils::UpdateChecker::testMirrorsList(void)
 315 {
 316         // ----- Test update mirrors ----- //
 317
 318         QStringList mirrorList;
 319         for(int i = 0; update_mirrors[i]; i++)
 320         {
 321                 mirrorList << QString::fromLatin1(update_mirrors[i]);
 322         }
 323
 324         qDebug("\n[Mirror Sites]");
 325         log("Testing all known mirror sites...", "", "---");
 326
 327         UpdateCheckerInfo updateInfo;
 328         while (!mirrorList.isEmpty())
 329         {
 330                 const QString currentMirror = mirrorList.takeFirst();
 331                 bool success = false;
 332                 qDebug("Testing: %s", MUTILS_L1STR(currentMirror));
 333                 log("", "Testing:", currentMirror, "");
 334                 for (quint8 attempt = 0; attempt < 3; ++attempt)
 335                 {
 336                         updateInfo.resetInfo();
 337                         if (tryUpdateMirror(&updateInfo, currentMirror, (!attempt)))
 338                         {
 339                                 success = true;
 340                                 break;
 341                         }
 342                 }
 343                 if (!success)
 344                 {
 345                         qWarning("\nUpdate mirror seems to be unavailable:\n%s\n", MUTILS_L1STR(currentMirror));
 346                 }
 347                 log("", "---");
 348         }
 349
 350         // ----- Test known hosts ----- //
 351
 352         QStringList knownHostList;
 353         for (int i = 0; known_hosts[i]; i++)
 354         {
 355                 knownHostList << QString::fromLatin1(known_hosts[i]);
 356         }
 357
 358         qDebug("\n[Known Hosts]");
 359         log("Testing all known hosts...", "", "---");
 360
 361         while(!knownHostList.isEmpty())
 362         {
 363                 const QString currentHost = knownHostList.takeFirst();
 364                 qDebug("Testing: %s", MUTILS_L1STR(currentHost));
 365                 log(QLatin1String(""), "Testing:", currentHost, "");
 366                 if (!tryContactHost(currentHost, DOWNLOAD_TIMEOUT))
 367                 {
 368                         qWarning("\nConnectivity test FAILED on the following host:\n%s\n", MUTILS_L1STR(currentHost));
 369                 }
 370                 log("", "---");
 371         }
 372 }
 373
 374 ////////////////////////////////////////////////////////////
 375 // PRIVATE FUNCTIONS
 376 ////////////////////////////////////////////////////////////
 377
 378 void MUtils::UpdateChecker::setStatus(const int status)
 379 {
 380         if(m_status != status)
 381         {
 382                 m_status = status;
 383                 emit statusChanged(status);
 384         }
 385 }
 386
 387 void MUtils::UpdateChecker::setProgress(const int progress)
 388 {
 389         if(m_progress != progress)
 390         {
 391                 m_progress = progress;
 392                 emit progressChanged(progress);
 393         }
 394 }
 395
 396 void MUtils::UpdateChecker::log(const QString &str1, const QString &str2, const QString &str3, const QString &str4)
 397 {
 398         if(!str1.isNull()) emit messageLogged(str1);
 399         if(!str2.isNull()) emit messageLogged(str2);
 400         if(!str3.isNull()) emit messageLogged(str3);
 401         if(!str4.isNull()) emit messageLogged(str4);
 402 }
 403
 404 bool MUtils::UpdateChecker::tryUpdateMirror(UpdateCheckerInfo *updateInfo, const QString &url, const bool &quick)
 405 {
 406         bool success = false;
 407         log("", "Trying mirror:", url, "");
 408
 409         if (quick)
 410         {
 411                 if (!tryContactHost(QUrl(url).host(), (MAX_CONN_TIMEOUT / 8)))
 412                 {
 413                         log("", "Mirror is too slow, skipping!");
 414                         return false;
 415                 }
 416         }
 417
 418         const QString randPart = next_rand_str();
 419         const QString outFileVers = QString("%1/%2.ver").arg(temp_folder(), randPart);
 420         const QString outFileSign = QString("%1/%2.sig").arg(temp_folder(), randPart);
 421
 422         if (getUpdateInfo(url, outFileVers, outFileSign))
 423         {
 424                 log("Download completed, verifying signature:", "");
 425                 if (checkSignature(outFileVers, outFileSign))
 426                 {
 427                         log("", "Signature is valid, parsing info:", "");
 428                         success = parseVersionInfo(outFileVers, updateInfo);
 429                 }
 430                 else
 431                 {
 432                         log("", "Bad signature, take care !!!");
 433                 }
 434         }
 435         else
 436         {
 437                 log("", "Download has failed!");
 438         }
 439
 440         QFile::remove(outFileVers);
 441         QFile::remove(outFileSign);
 442
 443         return success;
 444 }
 445
 446 bool MUtils::UpdateChecker::getUpdateInfo(const QString &url, const QString &outFileVers, const QString &outFileSign)
 447 {
 448         log("Downloading update info:", "");
 449         if(getFile(QUrl(QString("%1%2").arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0])), outFileVers))
 450         {
 451                 if (!m_cancelled)
 452                 {
 453                         log( "Downloading signature file:", "");
 454                         if (getFile(QUrl(QString("%1%2.sig2").arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0])), outFileSign))
 455                         {
 456                                 return true;
 457                         }
 458                 }
 459         }
 460         return false;
 461 }
 462
 463 bool MUtils::UpdateChecker::parseVersionInfo(const QString &file, UpdateCheckerInfo *updateInfo)
 464 {
 465         QRegExp value("^(\\w+)=(.+)$");
 466         QRegExp section("^\\[(.+)\\]$");
 467
 468         QDate updateInfoDate;
 469         updateInfo->resetInfo();
 470
 471         QFile data(file);
 472         if(!data.open(QIODevice::ReadOnly))
 473         {
 474                 qWarning("Cannot open update info file for reading!");
 475                 return false;
 476         }
 477
 478         bool inHdr = false;
 479         bool inSec = false;
 480
 481         while(!data.atEnd())
 482         {
 483                 QString line = QString::fromLatin1(data.readLine()).trimmed();
 484                 if(section.indexIn(line) >= 0)
 485                 {
 486                         log(QString("Sec: [%1]").arg(section.cap(1)));
 487                         inSec = (section.cap(1).compare(m_applicationId, Qt::CaseInsensitive) == 0);
 488                         inHdr = (section.cap(1).compare(QString::fromLatin1(header_id), Qt::CaseInsensitive) == 0);
 489                         continue;
 490                 }
 491                 if(inSec && (value.indexIn(line) >= 0))
 492                 {
 493                         log(QString("Val: '%1' ==> '%2").arg(value.cap(1), value.cap(2)));
 494                         if(value.cap(1).compare("BuildNo", Qt::CaseInsensitive) == 0)
 495                         {
 496                                 bool ok = false;
 497                                 const unsigned int temp = value.cap(2).toUInt(&ok);
 498                                 if(ok) updateInfo->m_buildNo = temp;
 499                         }
 500                         else if(value.cap(1).compare("BuildDate", Qt::CaseInsensitive) == 0)
 501                         {
 502                                 const QDate temp = QDate::fromString(value.cap(2).trimmed(), Qt::ISODate);
 503                                 if(temp.isValid()) updateInfo->m_buildDate = temp;
 504                         }
 505                         else if(value.cap(1).compare("DownloadSite", Qt::CaseInsensitive) == 0)
 506                         {
 507                                 updateInfo->m_downloadSite = value.cap(2).trimmed();
 508                         }
 509                         else if(value.cap(1).compare("DownloadAddress", Qt::CaseInsensitive) == 0)
 510                         {
 511                                 updateInfo->m_downloadAddress = value.cap(2).trimmed();
 512                         }
 513                         else if(value.cap(1).compare("DownloadFilename", Qt::CaseInsensitive) == 0)
 514                         {
 515                                 updateInfo->m_downloadFilename = value.cap(2).trimmed();
 516                         }
 517                         else if(value.cap(1).compare("DownloadFilecode", Qt::CaseInsensitive) == 0)
 518                         {
 519                                 updateInfo->m_downloadFilecode = value.cap(2).trimmed();
 520                         }
 521                         else if(value.cap(1).compare("DownloadChecksum", Qt::CaseInsensitive) == 0)
 522                         {
 523                                 updateInfo->m_downloadChecksum = value.cap(2).trimmed();
 524                         }
 525                 }
 526                 if(inHdr && (value.indexIn(line) >= 0))
 527                 {
 528                         log(QString("Val: '%1' ==> '%2").arg(value.cap(1), value.cap(2)));
 529                         if(value.cap(1).compare("TimestampCreated", Qt::CaseInsensitive) == 0)
 530                         {
 531                                 QDate temp = QDate::fromString(value.cap(2).trimmed(), Qt::ISODate);
 532                                 if(temp.isValid()) updateInfoDate = temp;
 533                         }
 534                 }
 535         }
 536
 537         if(!updateInfoDate.isValid())
 538         {
 539                 updateInfo->resetInfo();
 540                 log("WARNING: Version info timestamp is missing!");
 541                 return false;
 542         }
 543
 544         const QDate currentDate = OS::current_date();
 545         if(updateInfoDate.addMonths(VERSION_INFO_EXPIRES_MONTHS) < currentDate)
 546         {
 547                 updateInfo->resetInfo();
 548                 log(QString::fromLatin1("WARNING: This version info has expired at %1!").arg(updateInfoDate.addMonths(VERSION_INFO_EXPIRES_MONTHS).toString(Qt::ISODate)));
 549                 return false;
 550         }
 551         else if(currentDate < updateInfoDate)
 552         {
 553                 log("Version info is from the future, take care!");
 554                 qWarning("Version info is from the future, take care!");
 555         }
 556
 557         if(!updateInfo->isComplete())
 558         {
 559                 log("WARNING: Version info is incomplete!");
 560                 return false;
 561         }
 562
 563         return true;
 564 }
 565
 566 //----------------------------------------------------------
 567 // EXTERNAL TOOLS
 568 //----------------------------------------------------------
 569
 570 bool MUtils::UpdateChecker::getFile(const QUrl &url, const QString &outFile, const unsigned int maxRedir)
 571 {
 572         QFileInfo output(outFile);
 573         output.setCaching(false);
 574
 575         if (output.exists())
 576         {
 577                 QFile::remove(output.canonicalFilePath());
 578                 if (output.exists())
 579                 {
 580                         qWarning("Existing output file could not be found!");
 581                         return false;
 582                 }
 583         }
 584
 585         QStringList args(QLatin1String("-vsSNqkfL"));
 586         args << "-m" << QString::number(DOWNLOAD_TIMEOUT / 1000);
 587         args << "--max-redirs" << QString::number(maxRedir);
 588         args << "-A" << USER_AGENT_STR;
 589         args << "-e" << QString("%1://%2/;auto").arg(url.scheme(), url.host());
 590         args << "-o" << output.fileName() << url.toString();
 591
 592         return invokeCurl(args, output.absolutePath(), DOWNLOAD_TIMEOUT);
 593 }
 594
 595 bool MUtils::UpdateChecker::tryContactHost(const QString &hostname, const int &timeoutMsec)
 596 {
 597         log(QString("Connecting to host: %1").arg(hostname), "");
 598
 599         QStringList args(QLatin1String("-vsSNqkI"));
 600         args << "-m" << QString::number(qMax(1, timeoutMsec / 1000));
 601         args << "-A" << USER_AGENT_STR;
 602         args << "-o" << OS::null_device() << QString("http://%1/").arg(hostname);
 603
 604         return invokeCurl(args, temp_folder(), timeoutMsec);
 605 }
 606
 607 bool MUtils::UpdateChecker::invokeCurl(const QStringList &args, const QString &workingDir, const int timeout)
 608 {
 609         QProcess process;
 610         init_process(process, workingDir, true, NULL, m_environment.data());
 611
 612         QEventLoop loop;
 613         connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
 614         connect(&process, SIGNAL(finished(int, QProcess::ExitStatus)), &loop, SLOT(quit()));
 615         connect(&process, SIGNAL(readyRead()), &loop, SLOT(quit()));
 616
 617         QTimer timer;
 618         timer.setSingleShot(true);
 619         connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
 620
 621         process.start(m_binaryCurl, args);
 622         if (!process.waitForStarted())
 623         {
 624                 return false;
 625         }
 626
 627         bool bAborted = false;
 628         timer.start(qMax((timeout + (timeout / 2)), 1500));
 629
 630         while (process.state() != QProcess::NotRunning)
 631         {
 632                 loop.exec();
 633                 while (process.canReadLine())
 634                 {
 635                         const QString line = QString::fromLatin1(process.readLine()).simplified();
 636                         if ((!line.isEmpty()) && line.compare(QLatin1String("<")) && line.compare(QLatin1String(">")))
 637                         {
 638                                 log(line);
 639                         }
 640                 }
 641                 const bool bCancelled = MUTILS_BOOLIFY(m_cancelled);
 642                 if (bAborted = (bCancelled || ((!timer.isActive()) && (!process.waitForFinished(125)))))
 643                 {
 644                         log(bCancelled ? "CANCELLED BY USER !!!" : "PROCESS TIMEOUT !!!", "");
 645                         qWarning("WARNING: cURL process %s!", bCancelled ? "cancelled" : "timed out");
 646                         break; /*abort process*/
 647                 }
 648         }
 649
 650         timer.stop();
 651         timer.disconnect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
 652
 653         if (bAborted)
 654         {
 655                 process.kill();
 656                 process.waitForFinished(-1);
 657         }
 658
 659         while (process.canReadLine())
 660         {
 661                 const QString line = QString::fromLatin1(process.readLine()).simplified();
 662                 if ((!line.isEmpty()) && line.compare(QLatin1String("<")) && line.compare(QLatin1String(">")))
 663                 {
 664                         log(line);
 665                 }
 666         }
 667
 668         if (!bAborted)
 669         {
 670                 const int exitCode = process.exitCode();
 671                 switch (exitCode)
 672                 {
 673                         case -1:
 674                         case  0: log(QLatin1String("DONE: Transfer completed successfully."), "");                     break;
 675                         case  6: log(QLatin1String("ERROR: Remote host could not be resolved!"), "");                  break;
 676                         case  7: log(QLatin1String("ERROR: Connection to remote host could not be established!"), ""); break;
 677                         case 22: log(QLatin1String("ERROR: Requested URL was not found or returned an error!"), "");   break;
 678                         case 28: log(QLatin1String("ERROR: Operation timed out !!!"), "");                             break;
 679                         default: log(QString().sprintf("ERROR: Terminated with unknown code %d", exitCode), "");       break;
 680                 }
 681                 return (exitCode == 0);
 682         }
 683
 684         return false; /*aborted*/
 685 }
 686
 687 bool MUtils::UpdateChecker::checkSignature(const QString &file, const QString &signature)
 688 {
 689         if (QFileInfo(file).absolutePath().compare(QFileInfo(signature).absolutePath(), Qt::CaseInsensitive) != 0)
 690         {
 691                 qWarning("CheckSignature: File and signature should be in same folder!");
 692                 return false;
 693         }
 694
 695         QString keyRingPath(m_binaryKeys);
 696         bool removeKeyring = false;
 697         if (QFileInfo(file).absolutePath().compare(QFileInfo(m_binaryKeys).absolutePath(), Qt::CaseInsensitive) != 0)
 698         {
 699                 keyRingPath = make_temp_file(QFileInfo(file).absolutePath(), "gpg");
 700                 removeKeyring = true;
 701                 if (!QFile::copy(m_binaryKeys, keyRingPath))
 702                 {
 703                         qWarning("CheckSignature: Failed to copy the key-ring file!");
 704                         return false;
 705                 }
 706         }
 707
 708         QProcess process;
 709         init_process(process, QFileInfo(file).absolutePath());
 710
 711         QEventLoop loop;
 712         connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
 713         connect(&process, SIGNAL(finished(int, QProcess::ExitStatus)), &loop, SLOT(quit()));
 714         connect(&process, SIGNAL(readyRead()), &loop, SLOT(quit()));
 715
 716         process.start(m_binaryGnuPG, QStringList() << "--homedir" << "." << "--keyring" << QFileInfo(keyRingPath).fileName() << QFileInfo(signature).fileName() << QFileInfo(file).fileName());
 717
 718         if (!process.waitForStarted())
 719         {
 720                 if (removeKeyring)
 721                 {
 722                         remove_file(keyRingPath);
 723                 }
 724                 return false;
 725         }
 726
 727         while (process.state() != QProcess::NotRunning)
 728         {
 729                 loop.exec();
 730                 while (process.canReadLine())
 731                 {
 732                         const QString line = QString::fromLatin1(process.readLine()).simplified();
 733                         if (!line.isEmpty())
 734                         {
 735                                 log(line);
 736                         }
 737                 }
 738         }
 739
 740         if (removeKeyring)
 741         {
 742                 remove_file(keyRingPath);
 743         }
 744
 745         log(QString().sprintf("Exited with code %d", process.exitCode()));
 746         return (process.exitCode() == 0);
 747 }
 748
 749 ////////////////////////////////////////////////////////////
 750 // SLOTS
 751 ////////////////////////////////////////////////////////////
 752
 753 /*NONE*/
 754
 755 ////////////////////////////////////////////////////////////
 756 // EVENTS
 757 ////////////////////////////////////////////////////////////
 758
 759 /*NONE*/