src/app/upgrade.cpp

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2019  Mike Tzou (Chocobo1)
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program 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
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  *
  19  * In addition, as a special exception, the copyright holders give permission to
  20  * link this program with the OpenSSL project's "OpenSSL" library (or with
  21  * modified versions of it that use the same license as the "OpenSSL" library),
  22  * and distribute the linked executables. You must obey the GNU General Public
  23  * License in all respects for all of the code used other than "OpenSSL".  If you
  24  * modify file(s), you may extend this exception to your version of the file(s),
  25  * but you are not obligated to do so. If you do not wish to do so, delete this
  26  * exception statement from your version.
  27  */
  28
  29 #include "upgrade.h"
  30
  31 #include <QtGlobal>
  32 #include <QCoreApplication>
  33 #include <QMetaEnum>
  34
  35 #include "base/bittorrent/torrentcontentlayout.h"
  36 #include "base/global.h"
  37 #include "base/logger.h"
  38 #include "base/net/proxyconfigurationmanager.h"
  39 #include "base/preferences.h"
  40 #include "base/profile.h"
  41 #include "base/settingsstorage.h"
  42 #include "base/settingvalue.h"
  43 #include "base/utils/io.h"
  44 #include "base/utils/string.h"
  45
  46 namespace
  47 {
  48     const int MIGRATION_VERSION = 6;
  49     const QString MIGRATION_VERSION_KEY = u"Meta/MigrationVersion"_s;
  50
  51     void exportWebUIHttpsFiles()
  52     {
  53         const auto migrate = [](const QString &oldKey, const QString &newKey, const Path &savePath)
  54         {
  55             SettingsStorage *settingsStorage {SettingsStorage::instance()};
  56             const auto oldData {settingsStorage->loadValue<QByteArray>(oldKey)};
  57             const auto newData {settingsStorage->loadValue<QString>(newKey)};
  58             const QString errorMsgFormat {QCoreApplication::translate("Upgrade", "Migrate preferences failed: WebUI https, file: \"%1\", error: \"%2\"")};
  59
  60             if (!newData.isEmpty() || oldData.isEmpty())
  61                 return;
  62
  63             const nonstd::expected<void, QString> result = Utils::IO::saveToFile(savePath, oldData);
  64             if (!result)
  65             {
  66                 LogMsg(errorMsgFormat.arg(savePath.toString(), result.error()) , Log::WARNING);
  67                 return;
  68             }
  69
  70             settingsStorage->storeValue(newKey, savePath);
  71             settingsStorage->removeValue(oldKey);
  72
  73             LogMsg(QCoreApplication::translate("Upgrade", "Migrated preferences: WebUI https, exported data to file: \"%1\"").arg(savePath.toString())
  74                 , Log::INFO);
  75         };
  76
  77         const Path configPath = specialFolderLocation(SpecialFolder::Config);
  78         migrate(u"Preferences/WebUI/HTTPS/Certificate"_s
  79             , u"Preferences/WebUI/HTTPS/CertificatePath"_s
  80             , (configPath / Path(u"WebUICertificate.crt"_s)));
  81         migrate(u"Preferences/WebUI/HTTPS/Key"_s
  82             , u"Preferences/WebUI/HTTPS/KeyPath"_s
  83             , (configPath / Path(u"WebUIPrivateKey.pem"_s)));
  84     }
  85
  86     void upgradeTorrentContentLayout()
  87     {
  88         const QString oldKey = u"BitTorrent/Session/CreateTorrentSubfolder"_s;
  89         const QString newKey = u"BitTorrent/Session/TorrentContentLayout"_s;
  90
  91         SettingsStorage *settingsStorage {SettingsStorage::instance()};
  92         const auto oldData {settingsStorage->loadValue<QVariant>(oldKey)};
  93         const auto newData {settingsStorage->loadValue<QString>(newKey)};
  94
  95         if (!newData.isEmpty() || !oldData.isValid())
  96             return;
  97
  98         const bool createSubfolder = oldData.toBool();
  99         const BitTorrent::TorrentContentLayout torrentContentLayout =
 100                 (createSubfolder ? BitTorrent::TorrentContentLayout::Original : BitTorrent::TorrentContentLayout::NoSubfolder);
 101
 102         settingsStorage->storeValue(newKey, Utils::String::fromEnum(torrentContentLayout));
 103         settingsStorage->removeValue(oldKey);
 104     }
 105
 106     void upgradeListenPortSettings()
 107     {
 108         const auto oldKey = u"BitTorrent/Session/UseRandomPort"_s;
 109         const auto newKey = u"Preferences/Connection/PortRangeMin"_s;
 110         auto *settingsStorage = SettingsStorage::instance();
 111
 112         if (settingsStorage->hasKey(oldKey))
 113         {
 114             if (settingsStorage->loadValue<bool>(oldKey))
 115                 settingsStorage->storeValue(newKey, 0);
 116
 117             settingsStorage->removeValue(oldKey);
 118         }
 119     }
 120
 121     void upgradeSchedulerDaysSettings()
 122     {
 123         auto *settingsStorage = SettingsStorage::instance();
 124         const auto key = u"Preferences/Scheduler/days"_s;
 125         const auto value = settingsStorage->loadValue<QString>(key);
 126
 127         bool ok = false;
 128         const auto number = value.toInt(&ok);
 129
 130         if (ok)
 131         {
 132             switch (number)
 133             {
 134             case 0:
 135                 settingsStorage->storeValue(key, Scheduler::Days::EveryDay);
 136                 break;
 137             case 1:
 138                 settingsStorage->storeValue(key, Scheduler::Days::Weekday);
 139                 break;
 140             case 2:
 141                 settingsStorage->storeValue(key, Scheduler::Days::Weekend);
 142                 break;
 143             case 3:
 144                 settingsStorage->storeValue(key, Scheduler::Days::Monday);
 145                 break;
 146             case 4:
 147                 settingsStorage->storeValue(key, Scheduler::Days::Tuesday);
 148                 break;
 149             case 5:
 150                 settingsStorage->storeValue(key, Scheduler::Days::Wednesday);
 151                 break;
 152             case 6:
 153                 settingsStorage->storeValue(key, Scheduler::Days::Thursday);
 154                 break;
 155             case 7:
 156                 settingsStorage->storeValue(key, Scheduler::Days::Friday);
 157                 break;
 158             case 8:
 159                 settingsStorage->storeValue(key, Scheduler::Days::Saturday);
 160                 break;
 161             case 9:
 162                 settingsStorage->storeValue(key, Scheduler::Days::Sunday);
 163                 break;
 164             default:
 165                 LogMsg(QCoreApplication::translate("Upgrade", "Invalid value found in configuration file, reverting it to default. Key: \"%1\". Invalid value: \"%2\".")
 166                     .arg(key, QString::number(number)), Log::WARNING);
 167                 settingsStorage->removeValue(key);
 168                 break;
 169             }
 170         }
 171     }
 172
 173     void upgradeDNSServiceSettings()
 174     {
 175         auto *settingsStorage = SettingsStorage::instance();
 176         const auto key = u"Preferences/DynDNS/Service"_s;
 177         const auto value = settingsStorage->loadValue<QString>(key);
 178
 179         bool ok = false;
 180         const auto number = value.toInt(&ok);
 181
 182         if (ok)
 183         {
 184             switch (number)
 185             {
 186             case -1:
 187                 settingsStorage->storeValue(key, DNS::Service::None);
 188                 break;
 189             case 0:
 190                 settingsStorage->storeValue(key, DNS::Service::DynDNS);
 191                 break;
 192             case 1:
 193                 settingsStorage->storeValue(key, DNS::Service::NoIP);
 194                 break;
 195             default:
 196                 LogMsg(QCoreApplication::translate("Upgrade", "Invalid value found in configuration file, reverting it to default. Key: \"%1\". Invalid value: \"%2\".")
 197                     .arg(key, QString::number(number)), Log::WARNING);
 198                 settingsStorage->removeValue(key);
 199                 break;
 200             }
 201         }
 202     }
 203
 204     void upgradeTrayIconStyleSettings()
 205     {
 206         auto *settingsStorage = SettingsStorage::instance();
 207         const auto key = u"Preferences/Advanced/TrayIconStyle"_s;
 208         const auto value = settingsStorage->loadValue<QString>(key);
 209
 210         bool ok = false;
 211         const auto number = value.toInt(&ok);
 212
 213         if (ok)
 214         {
 215             switch (number)
 216             {
 217             case 0:
 218                 settingsStorage->storeValue(key, TrayIcon::Style::Normal);
 219                 break;
 220             case 1:
 221                 settingsStorage->storeValue(key, TrayIcon::Style::MonoDark);
 222                 break;
 223             case 2:
 224                 settingsStorage->storeValue(key, TrayIcon::Style::MonoLight);
 225                 break;
 226             default:
 227                 LogMsg(QCoreApplication::translate("Upgrade", "Invalid value found in configuration file, reverting it to default. Key: \"%1\". Invalid value: \"%2\".")
 228                     .arg(key, QString::number(number)), Log::WARNING);
 229                 settingsStorage->removeValue(key);
 230                 break;
 231             }
 232         }
 233     }
 234
 235     void migrateSettingKeys()
 236     {
 237         struct KeyMapping
 238         {
 239             QString newKey;
 240             QString oldKey;
 241         };
 242
 243         const KeyMapping mappings[] =
 244         {
 245             {u"AddNewTorrentDialog/Enabled"_s, u"Preferences/Downloads/NewAdditionDialog"_s},
 246             {u"AddNewTorrentDialog/Expanded"_s, u"AddNewTorrentDialog/expanded"_s},
 247             {u"AddNewTorrentDialog/Position"_s, u"AddNewTorrentDialog/y"_s},
 248             {u"AddNewTorrentDialog/SavePathHistory"_s, u"TorrentAdditionDlg/save_path_history"_s},
 249             {u"AddNewTorrentDialog/TopLevel"_s, u"Preferences/Downloads/NewAdditionDialogFront"_s},
 250             {u"AddNewTorrentDialog/TreeHeaderState"_s, u"AddNewTorrentDialog/qt5/treeHeaderState"_s},
 251             {u"AddNewTorrentDialog/Width"_s, u"AddNewTorrentDialog/width"_s},
 252             {u"BitTorrent/Session/AddExtensionToIncompleteFiles"_s, u"Preferences/Downloads/UseIncompleteExtension"_s},
 253             {u"BitTorrent/Session/AdditionalTrackers"_s, u"Preferences/Bittorrent/TrackersList"_s},
 254             {u"BitTorrent/Session/AddTorrentPaused"_s, u"Preferences/Downloads/StartInPause"_s},
 255             {u"BitTorrent/Session/AddTrackersEnabled"_s, u"Preferences/Bittorrent/AddTrackers"_s},
 256             {u"BitTorrent/Session/AlternativeGlobalDLSpeedLimit"_s, u"Preferences/Connection/GlobalDLLimitAlt"_s},
 257             {u"BitTorrent/Session/AlternativeGlobalUPSpeedLimit"_s, u"Preferences/Connection/GlobalUPLimitAlt"_s},
 258             {u"BitTorrent/Session/AnnounceIP"_s, u"Preferences/Connection/InetAddress"_s},
 259             {u"BitTorrent/Session/AnnounceToAllTrackers"_s, u"Preferences/Advanced/AnnounceToAllTrackers"_s},
 260             {u"BitTorrent/Session/AnonymousModeEnabled"_s, u"Preferences/Advanced/AnonymousMode"_s},
 261             {u"BitTorrent/Session/BandwidthSchedulerEnabled"_s, u"Preferences/Scheduler/Enabled"_s},
 262             {u"BitTorrent/Session/DefaultSavePath"_s, u"Preferences/Downloads/SavePath"_s},
 263             {u"BitTorrent/Session/DHTEnabled"_s, u"Preferences/Bittorrent/DHT"_s},
 264             {u"BitTorrent/Session/DiskCacheSize"_s, u"Preferences/Downloads/DiskWriteCacheSize"_s},
 265             {u"BitTorrent/Session/DiskCacheTTL"_s, u"Preferences/Downloads/DiskWriteCacheTTL"_s},
 266             {u"BitTorrent/Session/Encryption"_s, u"Preferences/Bittorrent/Encryption"_s},
 267             {u"BitTorrent/Session/FinishedTorrentExportDirectory"_s, u"Preferences/Downloads/FinishedTorrentExportDir"_s},
 268             {u"BitTorrent/Session/ForceProxy"_s, u"Preferences/Connection/ProxyForce"_s},
 269             {u"BitTorrent/Session/GlobalDLSpeedLimit"_s, u"Preferences/Connection/GlobalDLLimit"_s},
 270             {u"BitTorrent/Session/GlobalMaxRatio"_s, u"Preferences/Bittorrent/MaxRatio"_s},
 271             {u"BitTorrent/Session/GlobalUPSpeedLimit"_s, u"Preferences/Connection/GlobalUPLimit"_s},
 272             {u"BitTorrent/Session/IgnoreLimitsOnLAN"_s, u"Preferences/Advanced/IgnoreLimitsLAN"_s},
 273             {u"BitTorrent/Session/IgnoreSlowTorrentsForQueueing"_s, u"Preferences/Queueing/IgnoreSlowTorrents"_s},
 274             {u"BitTorrent/Session/IncludeOverheadInLimits"_s, u"Preferences/Advanced/IncludeOverhead"_s},
 275             {u"BitTorrent/Session/Interface"_s, u"Preferences/Connection/Interface"_s},
 276             {u"BitTorrent/Session/InterfaceAddress"_s, u"Preferences/Connection/InterfaceAddress"_s},
 277             {u"BitTorrent/Session/InterfaceName"_s, u"Preferences/Connection/InterfaceName"_s},
 278             {u"BitTorrent/Session/IPFilter"_s, u"Preferences/IPFilter/File"_s},
 279             {u"BitTorrent/Session/IPFilteringEnabled"_s, u"Preferences/IPFilter/Enabled"_s},
 280             {u"BitTorrent/Session/LSDEnabled"_s, u"Preferences/Bittorrent/LSD"_s},
 281             {u"BitTorrent/Session/MaxActiveDownloads"_s, u"Preferences/Queueing/MaxActiveDownloads"_s},
 282             {u"BitTorrent/Session/MaxActiveTorrents"_s, u"Preferences/Queueing/MaxActiveTorrents"_s},
 283             {u"BitTorrent/Session/MaxActiveUploads"_s, u"Preferences/Queueing/MaxActiveUploads"_s},
 284             {u"BitTorrent/Session/MaxConnections"_s, u"Preferences/Bittorrent/MaxConnecs"_s},
 285             {u"BitTorrent/Session/MaxConnectionsPerTorrent"_s, u"Preferences/Bittorrent/MaxConnecsPerTorrent"_s},
 286             {u"BitTorrent/Session/MaxHalfOpenConnections"_s, u"Preferences/Connection/MaxHalfOpenConnec"_s},
 287             {u"BitTorrent/Session/MaxRatioAction"_s, u"Preferences/Bittorrent/MaxRatioAction"_s},
 288             {u"BitTorrent/Session/MaxUploads"_s, u"Preferences/Bittorrent/MaxUploads"_s},
 289             {u"BitTorrent/Session/MaxUploadsPerTorrent"_s, u"Preferences/Bittorrent/MaxUploadsPerTorrent"_s},
 290             {u"BitTorrent/Session/OutgoingPortsMax"_s, u"Preferences/Advanced/OutgoingPortsMax"_s},
 291             {u"BitTorrent/Session/OutgoingPortsMin"_s, u"Preferences/Advanced/OutgoingPortsMin"_s},
 292             {u"BitTorrent/Session/PeXEnabled"_s, u"Preferences/Bittorrent/PeX"_s},
 293             {u"BitTorrent/Session/Port"_s, u"Preferences/Connection/PortRangeMin"_s},
 294             {u"BitTorrent/Session/Preallocation"_s, u"Preferences/Downloads/PreAllocation"_s},
 295             {u"BitTorrent/Session/ProxyPeerConnections"_s, u"Preferences/Connection/ProxyPeerConnections"_s},
 296             {u"BitTorrent/Session/QueueingSystemEnabled"_s, u"Preferences/Queueing/QueueingEnabled"_s},
 297             {u"BitTorrent/Session/RefreshInterval"_s, u"Preferences/General/RefreshInterval"_s},
 298             {u"BitTorrent/Session/SaveResumeDataInterval"_s, u"Preferences/Downloads/SaveResumeDataInterval"_s},
 299             {u"BitTorrent/Session/SuperSeedingEnabled"_s, u"Preferences/Advanced/SuperSeeding"_s},
 300             {u"BitTorrent/Session/TempPath"_s, u"Preferences/Downloads/TempPath"_s},
 301             {u"BitTorrent/Session/TempPathEnabled"_s, u"Preferences/Downloads/TempPathEnabled"_s},
 302             {u"BitTorrent/Session/TorrentExportDirectory"_s, u"Preferences/Downloads/TorrentExportDir"_s},
 303             {u"BitTorrent/Session/TrackerFilteringEnabled"_s, u"Preferences/IPFilter/FilterTracker"_s},
 304             {u"BitTorrent/Session/UseAlternativeGlobalSpeedLimit"_s, u"Preferences/Connection/alt_speeds_on"_s},
 305             {u"BitTorrent/Session/UseOSCache"_s, u"Preferences/Advanced/osCache"_s},
 306             {u"BitTorrent/Session/UseRandomPort"_s, u"Preferences/General/UseRandomPort"_s},
 307             {u"BitTorrent/Session/uTPEnabled"_s, u"Preferences/Bittorrent/uTP"_s},
 308             {u"BitTorrent/Session/uTPRateLimited"_s, u"Preferences/Bittorrent/uTP_rate_limited"_s},
 309             {u"BitTorrent/TrackerEnabled"_s, u"Preferences/Advanced/trackerEnabled"_s},
 310             {u"Network/PortForwardingEnabled"_s, u"Preferences/Connection/UPnP"_s},
 311             {u"Network/Proxy/Authentication"_s, u"Preferences/Connection/Proxy/Authentication"_s},
 312             {u"Network/Proxy/IP"_s, u"Preferences/Connection/Proxy/IP"_s},
 313             {u"Network/Proxy/OnlyForTorrents"_s, u"Preferences/Connection/ProxyOnlyForTorrents"_s},
 314             {u"Network/Proxy/Password"_s, u"Preferences/Connection/Proxy/Password"_s},
 315             {u"Network/Proxy/Port"_s, u"Preferences/Connection/Proxy/Port"_s},
 316             {u"Network/Proxy/Type"_s, u"Preferences/Connection/ProxyType"_s},
 317             {u"Network/Proxy/Username"_s, u"Preferences/Connection/Proxy/Username"_s},
 318             {u"State/BannedIPs"_s, u"Preferences/IPFilter/BannedIPs"_s}
 319         };
 320
 321         auto *settingsStorage = SettingsStorage::instance();
 322         for (const KeyMapping &mapping : mappings)
 323         {
 324             if (settingsStorage->hasKey(mapping.oldKey))
 325             {
 326                 const auto value = settingsStorage->loadValue<QVariant>(mapping.oldKey);
 327                 settingsStorage->storeValue(mapping.newKey, value);
 328                 // TODO: Remove oldKey after ~v4.4.3 and bump migration version
 329             }
 330         }
 331     }
 332
 333     void migrateProxySettingsEnum()
 334     {
 335         auto *settingsStorage = SettingsStorage::instance();
 336         const auto key = u"Network/Proxy/Type"_s;
 337         const auto value = settingsStorage->loadValue<QString>(key);
 338
 339         bool ok = false;
 340         const auto number = value.toInt(&ok);
 341
 342         if (ok)
 343         {
 344             switch (number)
 345             {
 346             case 0:
 347                 settingsStorage->storeValue(key, Net::ProxyType::None);
 348                 break;
 349             case 1:
 350                 settingsStorage->storeValue(key, Net::ProxyType::HTTP);
 351                 break;
 352             case 2:
 353                 settingsStorage->storeValue(key, Net::ProxyType::SOCKS5);
 354                 break;
 355             case 3:
 356                 settingsStorage->storeValue(key, u"HTTP_PW"_s);
 357                 break;
 358             case 4:
 359                 settingsStorage->storeValue(key, u"SOCKS5_PW"_s);
 360                 break;
 361             case 5:
 362                 settingsStorage->storeValue(key, Net::ProxyType::SOCKS4);
 363                 break;
 364             default:
 365                 LogMsg(QCoreApplication::translate("Upgrade", "Invalid value found in configuration file, reverting it to default. Key: \"%1\". Invalid value: \"%2\".")
 366                         .arg(key, QString::number(number)), Log::WARNING);
 367                 settingsStorage->removeValue(key);
 368                 break;
 369             }
 370         }
 371     }
 372
 373     void migrateProxySettings()
 374     {
 375         auto *settingsStorage = SettingsStorage::instance();
 376         const auto proxyType = settingsStorage->loadValue<QString>(u"Network/Proxy/Type"_s, u"None"_s);
 377         const auto onlyForTorrents = settingsStorage->loadValue<bool>(u"Network/Proxy/OnlyForTorrents"_s)
 378                 || (proxyType == u"SOCKS4");
 379
 380         settingsStorage->storeValue(u"Network/Proxy/Profiles/BitTorrent"_s, true);
 381         settingsStorage->storeValue(u"Network/Proxy/Profiles/RSS"_s, !onlyForTorrents);
 382         settingsStorage->storeValue(u"Network/Proxy/Profiles/Misc"_s, !onlyForTorrents);
 383
 384         if (proxyType == u"HTTP_PW"_s)
 385         {
 386             settingsStorage->storeValue(u"Network/Proxy/Type"_s, Net::ProxyType::HTTP);
 387             settingsStorage->storeValue(u"Network/Proxy/AuthEnabled"_s, true);
 388         }
 389         else if (proxyType == u"SOCKS5_PW"_s)
 390         {
 391             settingsStorage->storeValue(u"Network/Proxy/Type"_s, Net::ProxyType::SOCKS5);
 392             settingsStorage->storeValue(u"Network/Proxy/AuthEnabled"_s, true);
 393         }
 394
 395         settingsStorage->removeValue(u"Network/Proxy/OnlyForTorrents"_s);
 396
 397         const auto proxyHostnameLookup = settingsStorage->loadValue<bool>(u"BitTorrent/Session/ProxyHostnameLookup"_s);
 398         settingsStorage->storeValue(u"Network/Proxy/HostnameLookupEnabled"_s, proxyHostnameLookup);
 399         settingsStorage->removeValue(u"BitTorrent/Session/ProxyHostnameLookup"_s);
 400     }
 401
 402 #ifdef Q_OS_WIN
 403     void migrateMemoryPrioritySettings()
 404     {
 405         auto *settingsStorage = SettingsStorage::instance();
 406         const QString oldKey = u"BitTorrent/OSMemoryPriority"_s;
 407         const QString newKey = u"Application/ProcessMemoryPriority"_s;
 408
 409         if (settingsStorage->hasKey(oldKey))
 410         {
 411             const auto value = settingsStorage->loadValue<QVariant>(oldKey);
 412             settingsStorage->storeValue(newKey, value);
 413         }
 414     }
 415 #endif
 416
 417     void migrateStartupWindowState()
 418     {
 419         auto *settingsStorage = SettingsStorage::instance();
 420         if (settingsStorage->hasKey(u"Preferences/General/StartMinimized"_s))
 421         {
 422             const auto startMinimized = settingsStorage->loadValue<bool>(u"Preferences/General/StartMinimized"_s);
 423             const auto minimizeToTray = settingsStorage->loadValue<bool>(u"Preferences/General/MinimizeToTray"_s);
 424             const QString windowState = startMinimized ? (minimizeToTray ? u"Hidden"_s : u"Minimized"_s) : u"Normal"_s;
 425             settingsStorage->storeValue(u"GUI/StartUpWindowState"_s, windowState);
 426         }
 427     }
 428
 429     void migrateChineseLocale()
 430     {
 431         auto *settingsStorage = SettingsStorage::instance();
 432         const auto key = u"Preferences/General/Locale"_s;
 433         if (settingsStorage->hasKey(key))
 434         {
 435             const auto locale = settingsStorage->loadValue<QString>(key);
 436             if (locale.compare(u"zh"_s, Qt::CaseInsensitive) == 0)
 437                 settingsStorage->storeValue(key, u"zh_CN"_s);
 438         }
 439     }
 440 }
 441
 442 bool upgrade()
 443 {
 444     CachedSettingValue<int> version {MIGRATION_VERSION_KEY, 0};
 445
 446     if (version != MIGRATION_VERSION)
 447     {
 448         if (version < 1)
 449         {
 450             exportWebUIHttpsFiles();
 451             upgradeTorrentContentLayout();
 452             upgradeListenPortSettings();
 453             upgradeSchedulerDaysSettings();
 454             upgradeDNSServiceSettings();
 455             upgradeTrayIconStyleSettings();
 456         }
 457
 458         if (version < 2)
 459             migrateSettingKeys();
 460
 461         if (version < 3)
 462             migrateProxySettingsEnum();
 463
 464 #ifdef Q_OS_WIN
 465         if (version < 4)
 466             migrateMemoryPrioritySettings();
 467 #endif
 468
 469         if (version < 5)
 470         {
 471             migrateStartupWindowState();
 472             migrateChineseLocale();
 473         }
 474
 475         if (version < 6)
 476             migrateProxySettings();
 477
 478         version = MIGRATION_VERSION;
 479     }
 480
 481     return true;
 482 }
 483
 484 void setCurrentMigrationVersion()
 485 {
 486     SettingsStorage::instance()->storeValue(MIGRATION_VERSION_KEY, MIGRATION_VERSION);
 487 }
 488
 489 void handleChangedDefaults(const DefaultPreferencesMode mode)
 490 {
 491     struct DefaultValue
 492     {
 493         QString name;
 494         QVariant legacy;
 495         QVariant current;
 496     };
 497
 498     const DefaultValue changedDefaults[] =
 499     {
 500         {u"BitTorrent/Session/QueueingSystemEnabled"_s, true, false}
 501     };
 502
 503     auto *settingsStorage = SettingsStorage::instance();
 504     for (const DefaultValue &value : changedDefaults)
 505     {
 506         if (!settingsStorage->hasKey(value.name))
 507         {
 508             settingsStorage->storeValue(value.name
 509                 , (mode == DefaultPreferencesMode::Legacy ? value.legacy : value.current));
 510         }
 511     }
 512 }