2023-12-06 14:34:14 +01:00
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// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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#include "qstandardpaths.h"
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#include <qdir.h>
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#include <qstringlist.h>
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#ifndef QT_BOOTSTRAPPED
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#include <qcoreapplication.h>
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#endif
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#include <qt_windows.h>
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#include <shlobj.h>
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2023-12-06 14:39:10 +01:00
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#include <VersionHelpers.h>
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2023-12-06 14:34:14 +01:00
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#include <intshcut.h>
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#include <qvarlengtharray.h>
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#ifndef QT_NO_STANDARDPATHS
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QT_BEGIN_NAMESPACE
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using namespace Qt::StringLiterals;
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static QString convertCharArray(const wchar_t *path)
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{
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return QDir::fromNativeSeparators(QString::fromWCharArray(path));
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}
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static inline bool isGenericConfigLocation(QStandardPaths::StandardLocation type)
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{
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return type == QStandardPaths::GenericConfigLocation || type == QStandardPaths::GenericDataLocation;
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}
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static inline bool isConfigLocation(QStandardPaths::StandardLocation type)
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{
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return type == QStandardPaths::ConfigLocation || type == QStandardPaths::AppConfigLocation
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|| type == QStandardPaths::AppDataLocation || type == QStandardPaths::AppLocalDataLocation
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|| isGenericConfigLocation(type);
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}
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static void appendOrganizationAndApp(QString &path) // Courtesy qstandardpaths_unix.cpp
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{
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#ifndef QT_BOOTSTRAPPED
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const QString &org = QCoreApplication::organizationName();
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if (!org.isEmpty())
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path += u'/' + org;
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const QString &appName = QCoreApplication::applicationName();
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if (!appName.isEmpty())
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path += u'/' + appName;
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#else // !QT_BOOTSTRAPPED
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Q_UNUSED(path);
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#endif
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}
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static inline void appendTestMode(QString &path)
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{
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if (QStandardPaths::isTestModeEnabled())
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path += "/qttest"_L1;
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}
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static bool isProcessLowIntegrity()
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{
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if (!IsWindows8OrGreater())
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return false;
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2023-12-06 14:34:14 +01:00
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// same as GetCurrentProcessToken()
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const auto process_token = HANDLE(quintptr(-4));
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QVarLengthArray<char,256> token_info_buf(256);
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auto* token_info = reinterpret_cast<TOKEN_MANDATORY_LABEL*>(token_info_buf.data());
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DWORD token_info_length = token_info_buf.size();
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if (!GetTokenInformation(process_token, TokenIntegrityLevel, token_info, token_info_length, &token_info_length)
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&& GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
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// grow buffer and retry GetTokenInformation
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token_info_buf.resize(token_info_length);
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token_info = reinterpret_cast<TOKEN_MANDATORY_LABEL*>(token_info_buf.data());
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if (!GetTokenInformation(process_token, TokenIntegrityLevel, token_info, token_info_length, &token_info_length))
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return false; // assume "normal" process
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}
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else
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return false;
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2023-12-06 14:34:14 +01:00
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// The GetSidSubAuthorityCount return-code is undefined on failure, so
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// there's no point in checking before dereferencing
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DWORD integrity_level = *GetSidSubAuthority(token_info->Label.Sid, *GetSidSubAuthorityCount(token_info->Label.Sid) - 1);
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return (integrity_level < SECURITY_MANDATORY_MEDIUM_RID);
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}
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// Map QStandardPaths::StandardLocation to KNOWNFOLDERID of SHGetKnownFolderPath()
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static GUID writableSpecialFolderId(QStandardPaths::StandardLocation type)
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{
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// folders for medium & high integrity processes
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static const GUID folderIds[] = {
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FOLDERID_Desktop, // DesktopLocation
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FOLDERID_Documents, // DocumentsLocation
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FOLDERID_Fonts, // FontsLocation
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FOLDERID_Programs, // ApplicationsLocation
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FOLDERID_Music, // MusicLocation
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FOLDERID_Videos, // MoviesLocation
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FOLDERID_Pictures, // PicturesLocation
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GUID(), GUID(), // TempLocation/HomeLocation
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FOLDERID_LocalAppData, // AppLocalDataLocation ("Local" path)
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GUID(), // CacheLocation
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FOLDERID_LocalAppData, // GenericDataLocation ("Local" path)
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GUID(), // RuntimeLocation
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FOLDERID_LocalAppData, // ConfigLocation ("Local" path)
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FOLDERID_Downloads, // DownloadLocation
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GUID(), // GenericCacheLocation
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FOLDERID_LocalAppData, // GenericConfigLocation ("Local" path)
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FOLDERID_RoamingAppData,// AppDataLocation ("Roaming" path)
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FOLDERID_LocalAppData, // AppConfigLocation ("Local" path)
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FOLDERID_Public, // PublicShareLocation
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FOLDERID_Templates, // TemplatesLocation
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};
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static_assert(sizeof(folderIds) / sizeof(folderIds[0]) == size_t(QStandardPaths::TemplatesLocation + 1));
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// folders for low integrity processes
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static const GUID folderIds_li[] = {
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FOLDERID_Desktop, // DesktopLocation
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FOLDERID_Documents, // DocumentsLocation
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FOLDERID_Fonts, // FontsLocation
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FOLDERID_Programs, // ApplicationsLocation
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FOLDERID_Music, // MusicLocation
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FOLDERID_Videos, // MoviesLocation
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FOLDERID_Pictures, // PicturesLocation
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GUID(), GUID(), // TempLocation/HomeLocation
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FOLDERID_LocalAppDataLow,// AppLocalDataLocation ("Local" path)
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GUID(), // CacheLocation
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FOLDERID_LocalAppDataLow,// GenericDataLocation ("Local" path)
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GUID(), // RuntimeLocation
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FOLDERID_LocalAppDataLow,// ConfigLocation ("Local" path)
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FOLDERID_Downloads, // DownloadLocation
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GUID(), // GenericCacheLocation
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FOLDERID_LocalAppDataLow,// GenericConfigLocation ("Local" path)
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FOLDERID_RoamingAppData, // AppDataLocation ("Roaming" path)
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FOLDERID_LocalAppDataLow,// AppConfigLocation ("Local" path)
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FOLDERID_Public, // PublicShareLocation
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FOLDERID_Templates, // TemplatesLocation
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};
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static_assert(sizeof(folderIds_li) == sizeof(folderIds));
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static bool low_integrity_process = isProcessLowIntegrity();
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if (size_t(type) < sizeof(folderIds) / sizeof(folderIds[0]))
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return low_integrity_process ? folderIds_li[type] : folderIds[type];
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return GUID();
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}
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// Convenience for SHGetKnownFolderPath().
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static QString sHGetKnownFolderPath(const GUID &clsid)
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{
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QString result;
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LPWSTR path;
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if (Q_LIKELY(SUCCEEDED(SHGetKnownFolderPath(clsid, KF_FLAG_DONT_VERIFY, 0, &path)))) {
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result = convertCharArray(path);
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CoTaskMemFree(path);
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}
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return result;
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}
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QString QStandardPaths::writableLocation(StandardLocation type)
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{
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QString result;
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switch (type) {
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case CacheLocation:
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// Although Microsoft has a Cache key it is a pointer to IE's cache, not a cache
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// location for everyone. Most applications seem to be using a
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// cache directory located in their AppData directory
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result = sHGetKnownFolderPath(writableSpecialFolderId(AppLocalDataLocation));
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if (!result.isEmpty()) {
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appendTestMode(result);
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appendOrganizationAndApp(result);
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result += "/cache"_L1;
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}
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break;
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case GenericCacheLocation:
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result = sHGetKnownFolderPath(writableSpecialFolderId(GenericDataLocation));
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if (!result.isEmpty()) {
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appendTestMode(result);
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result += "/cache"_L1;
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}
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break;
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case RuntimeLocation:
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case HomeLocation:
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result = QDir::homePath();
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break;
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case TempLocation:
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result = QDir::tempPath();
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break;
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default:
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result = sHGetKnownFolderPath(writableSpecialFolderId(type));
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if (!result.isEmpty() && isConfigLocation(type)) {
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appendTestMode(result);
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if (!isGenericConfigLocation(type))
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appendOrganizationAndApp(result);
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}
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break;
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}
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return result;
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}
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#ifndef QT_BOOTSTRAPPED
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extern QString qAppFileName();
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#endif
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QStringList QStandardPaths::standardLocations(StandardLocation type)
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{
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QStringList dirs;
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const QString localDir = writableLocation(type);
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if (!localDir.isEmpty())
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dirs.append(localDir);
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// type-specific handling goes here
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if (isConfigLocation(type)) {
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QString programData = sHGetKnownFolderPath(FOLDERID_ProgramData);
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if (!programData.isEmpty()) {
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if (!isGenericConfigLocation(type))
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appendOrganizationAndApp(programData);
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dirs.append(programData);
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}
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#ifndef QT_BOOTSTRAPPED
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// Note: QCoreApplication::applicationDirPath(), while static, requires
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// an application instance. But we might need to resolve the standard
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// locations earlier than that, so we fall back to qAppFileName().
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QString applicationDirPath = qApp ? QCoreApplication::applicationDirPath()
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: QFileInfo(qAppFileName()).path();
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dirs.append(applicationDirPath);
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const QString dataDir = applicationDirPath + "/data"_L1;
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dirs.append(dataDir);
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if (!isGenericConfigLocation(type)) {
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QString appDataDir = dataDir;
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appendOrganizationAndApp(appDataDir);
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if (appDataDir != dataDir)
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dirs.append(appDataDir);
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}
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#endif // !QT_BOOTSTRAPPED
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} // isConfigLocation()
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return dirs;
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}
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QT_END_NAMESPACE
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#endif // QT_NO_STANDARDPATHS
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