LED-Device updates (#1315)

* SPI Fix - Free allocated memory in case of invert

* Remove development statement

* UI updates

* Minor corrections

* Tpm2net Fix - Free allocated memory

* LGTM Finding

* Add config directory and user type to SysInfo

* WS281x - Ensure that device runs with root priviliges

* WS281x - Update DMA defauls as per rpi_ws281x recommendation

* Support Sysinfo for Qt < 5.10

* Address LGTM finding

assets/webconfig/content/conf_leds.html

@@ -37,7 +37,13 @@
             <div class="panel-body">
               <div id="btn_wiz_holder"></div>
               <div id='editor_container_leddevice'></div>
-              <div class="bs-callout bs-callout-info" style="margin-top:0px"><h4 data-i18n="dashboard_infobox_label_title">Information</h4><span data-i18n="conf_leds_device_info_log"> In case your LEDs do not work, check here for errors: </span> <a onclick="SwitchToMenuItem('MenuItemLogging')" data-i18n="main_menu_logging_token" style="cursor:pointer"></a></div>
+              <div id='info_container' class="bs-callout bs-callout-info" style="margin-top:0px">
+                <h4 data-i18n="dashboard_infobox_label_title">Information</h4>
+                <div id='info_container_text'>
+                  <span data-i18n="conf_leds_device_info_log"> In case your LEDs do not work, check here for errors: </span>
+                  <a onclick="SwitchToMenuItem('MenuItemLogging')" data-i18n="main_menu_logging_token" style="cursor:pointer"></a>
+                </div>
+              </div>
             </div>
             <div class="panel-footer" style="text-align:right">
               <button id='btn_test_controller' class="btn btn-primary" disabled data-toggle="tooltip" data-placement="top" title="Identify configured device by lighting it up">
@@ -395,3 +401,4 @@
 </div>
 
 <script src="/js/content_leds.js"></script>
+

assets/webconfig/i18n/en.json

@@ -57,6 +57,7 @@
     "conf_leds_device_intro": "Hyperion supports a lot of controllers to transmit data to your target device. Select a LED controller out of the sorted list and configure it. We have chosen the best default settings for each device.",
     "conf_leds_error_hwled_gt_layout": "The hardware LED count ($1) is greater than LEDs configured via layout ($2),<br>$3 {{plural:$3|LED|LEDs}} will stay black if you continue.",
     "conf_leds_error_hwled_lt_layout": "The hardware LED count ($1) is less than LEDs configured via layout ($2). <br> The number of LEDs configured in the layout must not exceed the available LEDs",
+    "conf_leds_info_ws281x": "Hyperion must run with 'root' privileges for this controller type!",
     "conf_leds_layout_advanced": "Advanced Settings",
     "conf_leds_layout_blacklist_num_title": "Number of LEDs",
     "conf_leds_layout_blacklist_rule_title": "Blacklist rule",

assets/webconfig/js/content_grabber.js

@@ -755,7 +755,7 @@ $(document).ready(function () {
       updateJsonEditorSelection(conf_editor_video, 'root.grabberV4L2',
         'available_devices', {}, enumVals, enumTitelVals, enumDefaultVal, addSelect, false);
     }
-  }
+  };
 
   async function discoverInputSources(type, params) {
     const result = await requestInputSourcesDiscovery(type, params);

assets/webconfig/js/content_leds.js

@@ -16,6 +16,8 @@ var devNET = ['atmoorb', 'cololight', 'fadecandy', 'philipshue', 'nanoleaf', 'ti
 var devSerial = ['adalight', 'dmx', 'atmo', 'sedu', 'tpm2', 'karate'];
 var devHID = ['hyperionusbasp', 'lightpack', 'paintpack', 'rawhid'];
 
+var infoTextDefault = '<span>' + $.i18n("conf_leds_device_info_log") + ' </span><a href="" onclick="SwitchToMenuItem(\'MenuItemLogging\')" style="cursor:pointer">' + $.i18n("main_menu_logging_token") + '</a>';
+
 function round(number) {
   var factor = Math.pow(10, 4);
   var tempNumber = number * factor;
@@ -664,6 +666,8 @@ $(document).ready(function () {
       conf_editor.getEditor("root.specificOptions").setValue(values_specific);
     };
 
+    $("#info_container_text").html(infoTextDefault);
+
     // change save button state based on validation result
     conf_editor.validate().length || window.readOnlyMode ? $('#btn_submit_controller').attr('disabled', true) : $('#btn_submit_controller').attr('disabled', false);
 
@@ -727,6 +731,7 @@ $(document).ready(function () {
         case "sk9822":
         case "ws2812spi":
         case "piblaster":
+        case "ws281x":
           discover_device(ledType);
           hwLedCountDefault = 1;
           colorOrderDefault = "rgb";
@@ -1313,6 +1318,8 @@ var updateSelectList = function (ledType, discoveryInfo) {
     ledTypeGroup = "devRPiSPI";
   } else if ($.inArray(ledType, devRPiGPIO) != -1) {
     ledTypeGroup = "devRPiGPIO";
+  } else if ($.inArray(ledType, devRPiPWM) != -1) {
+    ledTypeGroup = "devRPiPWM";
   }
 
   switch (ledTypeGroup) {
@@ -1473,6 +1480,18 @@ var updateSelectList = function (ledType, discoveryInfo) {
         }
       }
       break;
+    case "devRPiPWM":
+      key = ledType;
+
+      if (discoveryInfo.devices.length == 0) {
+        enumVals.push("NONE");
+        enumTitelVals.push($.i18n('edt_dev_spec_devices_discovered_none'));
+        $('#btn_submit_controller').attr('disabled', true);
+        showAllDeviceInputOptions(key, false);
+
+        $("#info_container_text").html($.i18n("conf_leds_info_ws281x"));
+      }
+      break;
     default:
   }
 

assets/webconfig/js/content_logging.js

@@ -4,10 +4,11 @@ var isScroll = true;
 
 performTranslation();
 requestLoggingStop();
-requestLoggingStart();
 
 $(document).ready(function () {
 
+  requestLoggingStart();
+
   $('#conf_cont').append(createOptPanel('fa-reorder', $.i18n("edt_conf_log_heading_title"), 'editor_container', 'btn_submit'));
   if (window.showOptHelp) {
     $('#conf_cont').append(createHelpTable(window.schema.logger.properties, $.i18n("edt_conf_log_heading_title")));

assets/webconfig/js/ui_utils.js

@@ -110,9 +110,17 @@ function loadContent(event, forceRefresh) {
     $("#page-content").off();
     $("#page-content").load("/content/" + tag + ".html", function (response, status, xhr) {
       if (status == "error") {
-        $("#page-content").html('<h3>' + $.i18n('info_404') + '</h3>');
+        tag = 'dashboard';
+        console.log("Could not find page:", prevTag, ", Redirecting to:", tag);
+        setStorage('lasthashtag', tag, true);
+
+        $("#page-content").load("/content/" + tag + ".html", function (response, status, xhr) {
+          if (status == "error") {
+            $("#page-content").html('<h3>' + encode_utf8(tag) + '<br/>' + $.i18n('info_404') + '</h3>');
             removeOverlay();
           }
+        });
+      }
       updateUiOnInstance(window.currentHyperionInstance);
     });
   }
@@ -710,7 +718,11 @@ function hexToRgb(hex) {
     r: parseInt(result[1], 16),
     g: parseInt(result[2], 16),
     b: parseInt(result[3], 16)
-  } : null;
+  } : {
+    r: 0,
+    g: 0,
+    b: 0
+  };
 }
 
 /*
@@ -1135,6 +1147,7 @@ function getSystemInfo() {
   info += '- UI Access:       ' + storedAccess + '\n';
   //info += '- Log lvl:         ' + window.serverConfig.logger.level + '\n';
   info += '- Avail Capt:      ' + window.serverInfo.grabbers.available + '\n';
+  info += '- Config path:     ' + shy.rootPath + '\n';
   info += '- Database:        ' + (shy.readOnlyMode ? "ready-only" : "read/write") + '\n';
 
   info += '\n';
@@ -1153,6 +1166,7 @@ function getSystemInfo() {
     info += '- CPU Hardware:   ' + sys.cpuHardware + '\n';
 
   info += '- Kernel:         ' + sys.kernelType + ' (' + sys.kernelVersion + ' (WS: ' + sys.wordSize + '))\n';
+  info += '- Root/Admin:     ' + sys.isUserAdmin + '\n';
   info += '- Qt Version:     ' + sys.qtVersion + '\n';
   info += '- Python Version: ' + sys.pyVersion + '\n';
   info += '- Browser:        ' + navigator.userAgent;

include/hyperion/HyperionIManager.h

@@ -102,6 +102,8 @@ public slots:
 	///
 	bool saveName(quint8 inst, const QString& name);
 
+	QString getRootPath() const { return _rootPath; }
+
 signals:
 	///
 	/// @brief Emits whenever the state of a instance changes according to enum instanceState

include/utils/SysInfo.h

@@ -21,12 +21,16 @@ public:
 		QString prettyName;
 		QString hostName;
 		QString domainName;
+		bool isUserAdmin;
 		QString qtVersion;
 		QString pyVersion;
 	};
 
 	static HyperionSysInfo get();
 
+	static bool isUserAdmin();
+	static QString userName();
+
 private:
 	SysInfo();
 	void getCPUInfo();

libsrc/api/JsonAPI.cpp

@@ -328,6 +328,7 @@ void JsonAPI::handleSysInfoCommand(const QJsonObject &, const QString &command,
 	system["prettyName"] = data.prettyName;
 	system["hostName"] = data.hostName;
 	system["domainName"] = data.domainName;
+	system["isUserAdmin"] = data.isUserAdmin;
 	system["qtVersion"] = data.qtVersion;
 	system["pyVersion"] = data.pyVersion;
 	info["system"] = system;
@@ -338,6 +339,7 @@ void JsonAPI::handleSysInfoCommand(const QJsonObject &, const QString &command,
 	hyperion["gitremote"] = QString(HYPERION_GIT_REMOTE);
 	hyperion["time"] = QString(__DATE__ " " __TIME__);
 	hyperion["id"] = _authManager->getID();
+	hyperion["rootPath"] = _instanceManager->getRootPath();
 	hyperion["readOnlyMode"] = _hyperion->getReadOnlyMode();
 
 	info["hyperion"] = hyperion;

libsrc/grabber/video/v4l2/V4L2Grabber.cpp

@@ -1275,8 +1275,6 @@ QJsonArray V4L2Grabber::discover(const QJsonObject& params)
 			device["device_name"] = _deviceProperties.value(it.key()).name;
 			device["type"] = "v4l2";
 
-			Debug( _log, "inputs size [%d], isEmpty [%d]", inputs.size(), inputs.isEmpty());
-
 			for (auto input = inputs.begin(); input != inputs.end(); input++)
 			{
 				in["name"] = input.key();

libsrc/leddevice/dev_net/LedDeviceTpm2net.cpp

@@ -4,9 +4,15 @@ const ushort TPM2_DEFAULT_PORT = 65506;
 
 LedDeviceTpm2net::LedDeviceTpm2net(const QJsonObject &deviceConfig)
 	: ProviderUdp(deviceConfig)
+	, _tpm2_buffer(nullptr)
 {
 }
 
+LedDeviceTpm2net::~LedDeviceTpm2net()
+{
+	free (_tpm2_buffer);
+}
+
 LedDevice* LedDeviceTpm2net::construct(const QJsonObject &deviceConfig)
 {
 	return new LedDeviceTpm2net(deviceConfig);
@@ -25,6 +31,8 @@ bool LedDeviceTpm2net::init(const QJsonObject &deviceConfig)
 		_tpm2ByteCount = 3 * _ledCount;
 		_tpm2TotalPackets = (_tpm2ByteCount / _tpm2_max) + ((_tpm2ByteCount % _tpm2_max) != 0);
 
+		_tpm2_buffer = (uint8_t*) malloc(_tpm2_max+7);
+
 		isInitOK = true;
 	}
 	return isInitOK;
@@ -32,8 +40,6 @@ bool LedDeviceTpm2net::init(const QJsonObject &deviceConfig)
 
 int LedDeviceTpm2net::write(const std::vector<ColorRgb> &ledValues)
 {
-	uint8_t * tpm2_buffer = (uint8_t*) malloc(_tpm2_max+7);
-
 	int retVal = 0;
 
 	int _thisPacketBytes = 0;
@@ -48,23 +54,22 @@ int LedDeviceTpm2net::write(const std::vector<ColorRgb> &ledValues)
 			_thisPacketBytes = (_tpm2ByteCount - rawIdx < _tpm2_max) ? _tpm2ByteCount % _tpm2_max : _tpm2_max;
 //			                        is this the last packet?         ?    ^^ last packet          : ^^ earlier packets
 
-			tpm2_buffer[0] = 0x9c;	// Packet start byte
+			_tpm2_buffer[0] = 0x9c;	// Packet start byte
-			tpm2_buffer[1] = 0xda; // Packet type Data frame
+			_tpm2_buffer[1] = 0xda; // Packet type Data frame
-			tpm2_buffer[2] = (_thisPacketBytes >> 8) & 0xff; // Frame size high
+			_tpm2_buffer[2] = (_thisPacketBytes >> 8) & 0xff; // Frame size high
-			tpm2_buffer[3] = _thisPacketBytes & 0xff; // Frame size low
+			_tpm2_buffer[3] = _thisPacketBytes & 0xff; // Frame size low
-			tpm2_buffer[4] = _tpm2ThisPacket++; // Packet Number
+			_tpm2_buffer[4] = _tpm2ThisPacket++; // Packet Number
-			tpm2_buffer[5] = _tpm2TotalPackets; // Number of packets
+			_tpm2_buffer[5] = _tpm2TotalPackets; // Number of packets
 		}
 
-		tpm2_buffer [6 + rawIdx%_tpm2_max] = rawdata[rawIdx];
+		_tpm2_buffer [6 + rawIdx%_tpm2_max] = rawdata[rawIdx];
 
 //     is this the      last byte of last packet    ||   last byte of other packets
 		if ( (rawIdx == _tpm2ByteCount-1) || (rawIdx %_tpm2_max == _tpm2_max-1) )
 		{
-			tpm2_buffer [6 + rawIdx%_tpm2_max +1] = 0x36;		// Packet end byte
+			_tpm2_buffer [6 + rawIdx%_tpm2_max +1] = 0x36;		// Packet end byte
-			retVal &= writeBytes(_thisPacketBytes+7, tpm2_buffer);
+			retVal &= writeBytes(_thisPacketBytes+7, _tpm2_buffer);
 		}
 	}
-
 	return retVal;
 }

libsrc/leddevice/dev_net/LedDeviceTpm2net.h

@@ -18,6 +18,11 @@ public:
 	///
 	explicit LedDeviceTpm2net(const QJsonObject &deviceConfig);
 
+	///
+	/// @brief Destructor of the TPM2 LED-device
+	///
+	~LedDeviceTpm2net() override;
+
 	///
 	/// @brief Constructs the LED-device
 	///
@@ -48,6 +53,8 @@ private:
 	int _tpm2ByteCount;
 	int _tpm2TotalPackets;
 	int _tpm2ThisPacket;
+
+	uint8_t * _tpm2_buffer;
 };
 
 #endif // LEDEVICETPM2NET_H

libsrc/leddevice/dev_rpi_pwm/LedDeviceWS281x.cpp

@@ -1,4 +1,10 @@
 #include "LedDeviceWS281x.h"
+#include <utils/SysInfo.h>
+
+// Constants
+namespace {
+const bool verbose = false;
+} //End of constants
 
 LedDeviceWS281x::LedDeviceWS281x(const QJsonObject &deviceConfig)
 	: LedDevice(deviceConfig)
@@ -75,8 +81,14 @@ int LedDeviceWS281x::open()
 	int retval = -1;
 	_isDeviceReady = false;
 
+	if (!SysInfo::isUserAdmin())
+	{
+		QString errortext = QString ("Hyperion must run with \"root\" privileges for this device. Current user is: \"%1\"").arg(SysInfo::userName());
+		this->setInError( errortext );
+	}
+	else
+	{
 		// Try to open the LedDevice
-
 		ws2811_return_t rc = ws2811_init(&_led_string);
 		if ( rc != WS2811_SUCCESS )
 		{
@@ -89,6 +101,7 @@ int LedDeviceWS281x::open()
 			_isDeviceReady = true;
 			retval = 0;
 		}
+	}
 	return retval;
 }
 
@@ -138,3 +151,22 @@ int LedDeviceWS281x::write(const std::vector<ColorRgb> &ledValues)
 
 	return ws2811_render(&_led_string) ? -1 : 0;
 }
+
+QJsonObject LedDeviceWS281x::discover(const QJsonObject& /*params*/)
+{
+	QJsonObject devicesDiscovered;
+	devicesDiscovered.insert("ledDeviceType", _activeDeviceType);
+
+	QJsonArray deviceList;
+
+	if (SysInfo::isUserAdmin())
+	{
+		//Indicate the general availability of the device, if hyperion is run under root
+		deviceList << QJsonObject ({{"found",true}});
+		devicesDiscovered.insert("devices", deviceList);
+	}
+
+	DebugIf(verbose,_log, "devicesDiscovered: [%s]", QString(QJsonDocument(devicesDiscovered).toJson(QJsonDocument::Compact)).toUtf8().constData());
+
+	return devicesDiscovered;
+}

libsrc/leddevice/dev_rpi_pwm/LedDeviceWS281x.h

@@ -29,6 +29,15 @@ public:
 	///
 	static LedDevice* construct(const QJsonObject &deviceConfig);
 
+	///
+	/// @brief Discover WS281x devices available (for configuration).
+	///
+	/// @param[in] params Parameters used to overwrite discovery default behaviour
+	///
+	/// @return A JSON structure holding a list of devices found
+	///
+	QJsonObject discover(const QJsonObject& params) override;
+
 protected:
 
 	///

libsrc/leddevice/dev_spi/ProviderSpi.cpp

@@ -144,12 +144,14 @@ int ProviderSpi::writeBytes(unsigned size, const uint8_t * data)
 		return -1;
 	}
 
+	uint8_t * newdata {nullptr};
+
 	_spi.tx_buf = __u64(data);
 	_spi.len    = __u32(size);
 
 	if (_spiDataInvert)
 	{
-		uint8_t * newdata = (uint8_t *)malloc(size);
+		newdata = static_cast<uint8_t *>(malloc(size));
 		for (unsigned i = 0; i<size; i++) {
 			newdata[i] = data[i] ^ 0xff;
 		}
@@ -159,6 +161,8 @@ int ProviderSpi::writeBytes(unsigned size, const uint8_t * data)
 	int retVal = ioctl(_fid, SPI_IOC_MESSAGE(1), &_spi);
 	ErrorIf((retVal < 0), _log, "SPI failed to write. errno: %d, %s", errno,  strerror(errno) );
 
+	free (newdata);
+
 	return retVal;
 }
 

libsrc/leddevice/schemas/schema-ws281x.json

@@ -17,7 +17,7 @@
 		"dma": {
 			"type": "integer",
 			"title":"edt_dev_spec_dmaNumber_title",
-			"default": 5,
+			"default": 10,
 			"propertyOrder" : 3
 		},
 		"pwmchannel": {

libsrc/ssdp/SSDPHandler.cpp

@@ -13,7 +13,7 @@
 #include <QRandomGenerator>
 #endif
 
-static const QString SSDP_HYPERION_ST("urn:hyperion-project.org:device:basic:1");
+static const QString SSDP_IDENTIFIER("urn:hyperion-project.org:device:basic:1");
 
 SSDPHandler::SSDPHandler(WebServer* webserver, quint16 flatBufPort, quint16 protoBufPort, quint16 jsonServerPort, quint16 sslPort,  const QString& name, QObject * parent)
 	: SSDPServer(parent)
@@ -41,7 +41,7 @@ void SSDPHandler::initServer()
 	// announce targets
 	_deviceList.push_back("upnp:rootdevice");
 	_deviceList.push_back("uuid:"+_uuid);
-	_deviceList.push_back(SSDP_HYPERION_ST);
+	_deviceList.push_back(SSDP_IDENTIFIER);
 
 	// prep server
 	SSDPServer::initServer();
@@ -174,8 +174,8 @@ void SSDPHandler::handleMSearchRequest(const QString& target, const QString& mx,
 	const auto respond = [=] () {
 		// when searched for all devices / root devices / basic device
 		if(target == "ssdp:all")
-			sendMSearchResponse(SSDP_HYPERION_ST, address, port);
+			sendMSearchResponse(SSDP_IDENTIFIER, address, port);
-		else if(target == "upnp:rootdevice" || target == "urn:schemas-upnp-org:device:basic:1" || target == SSDP_HYPERION_ST)
+		else if(target == "upnp:rootdevice" || target == "urn:schemas-upnp-org:device:basic:1" || target == SSDP_IDENTIFIER)
 			sendMSearchResponse(target, address, port);
 	};
 
@@ -213,8 +213,8 @@ QString SSDPHandler::getBaseAddress() const
 
 QString SSDPHandler::buildDesc() const
 {
-	/// %1 base url                   http://192.168.0.177:80/
+	/// %1 base url                   http://192.168.0.177:8090/
-	/// %2 friendly name              Hyperion 2.0.0 (192.168.0.177)
+	/// %2 friendly name              Hyperion (192.168.0.177)
 	/// %3 modelNumber                2.0.0
 	/// %4 serialNumber / UDN (H ID)  Fjsa723dD0....
 	/// %5 json port                  19444

libsrc/utils/SysInfo.cpp

@@ -11,6 +11,10 @@
 
 #include <iostream>
 
+#ifdef _WIN32
+#include <shlobj_core.h>
+#endif
+
 SysInfo* SysInfo::_instance = nullptr;
 
 SysInfo::SysInfo()
@@ -25,6 +29,7 @@ SysInfo::SysInfo()
 	_sysinfo.prettyName = QSysInfo::prettyProductName();
 	_sysinfo.hostName = QHostInfo::localHostName();
 	_sysinfo.domainName = QHostInfo::localDomainName();
+	_sysinfo.isUserAdmin = isUserAdmin();
 	getCPUInfo();
 	_sysinfo.qtVersion = QT_VERSION_STR;
 	_sysinfo.pyVersion = PY_VERSION;
@@ -41,44 +46,95 @@ SysInfo::HyperionSysInfo SysInfo::get()
 void SysInfo::getCPUInfo()
 {
 	QString cpuInfo;
-	if( FileUtils::readFile("/proc/cpuinfo", cpuInfo, Logger::getInstance("DAEMON"), true) )
+	if (FileUtils::readFile("/proc/cpuinfo", cpuInfo, Logger::getInstance("DAEMON"), true))
 	{
-		QRegularExpression regEx ("^model\\s*:\\s(.*)", QRegularExpression::CaseInsensitiveOption | QRegularExpression::MultilineOption);
+		QRegularExpression regEx("^model\\s*:\\s(.*)", QRegularExpression::CaseInsensitiveOption | QRegularExpression::MultilineOption);
 		QRegularExpressionMatch match;
 
 		match = regEx.match(cpuInfo);
-		if ( match.hasMatch() )
+		if (match.hasMatch())
 		{
 			_sysinfo.cpuModelType = match.captured(1);
 		}
 
 		regEx.setPattern("^model name\\s*:\\s(.*)");
 		match = regEx.match(cpuInfo);
-		if ( match.hasMatch() )
+		if (match.hasMatch())
 		{
 			_sysinfo.cpuModelName = match.captured(1);
 		}
 
 		regEx.setPattern("^hardware\\s*:\\s(.*)");
 		match = regEx.match(cpuInfo);
-		if ( match.hasMatch() )
+		if (match.hasMatch())
 		{
 			_sysinfo.cpuHardware = match.captured(1);
 		}
 
 		regEx.setPattern("^revision\\s*:\\s(.*)");
 		match = regEx.match(cpuInfo);
-		if ( match.hasMatch() )
+		if (match.hasMatch())
 		{
 			_sysinfo.cpuRevision = match.captured(1);
 		}
 
 		regEx.setPattern("^revision\\s*:\\s(.*)");
 		match = regEx.match(cpuInfo);
-		if ( match.hasMatch() )
+		if (match.hasMatch())
 		{
 			_sysinfo.cpuRevision = match.captured(1);
 		}
 	}
 }
 
+QString SysInfo::userName()
+{
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+	#if defined (WIN32)
+		return qEnvironmentVariable("USERNAME");
+	#else
+		return qEnvironmentVariable("USER");
+	#endif
+#else
+	#if defined (WIN32)
+		return getenv("USERNAME");
+	#else
+		return getenv("USER");
+	#endif
+#endif
+}
+
+bool SysInfo::isUserAdmin()
+{
+	bool isAdmin{ false };
+
+#ifdef _WIN32
+	BOOL b;
+	SID_IDENTIFIER_AUTHORITY NtAuthority = SECURITY_NT_AUTHORITY;
+	PSID AdministratorsGroup;
+	b = AllocateAndInitializeSid(
+		&NtAuthority,
+		2,
+		SECURITY_BUILTIN_DOMAIN_RID,
+		DOMAIN_ALIAS_RID_ADMINS,
+		0, 0, 0, 0, 0, 0,
+		&AdministratorsGroup);
+	if (b)
+	{
+		if (!CheckTokenMembership(NULL, AdministratorsGroup, &b))
+		{
+			b = false;
+		}
+		FreeSid(AdministratorsGroup);
+	}
+	// TRUE - User has Administrators local group.
+	// FALSE - User does not have Administrators local group.
+	isAdmin = b;
+#else
+	if (getuid() == 0U)
+	{
+		isAdmin = true;
+	}
+#endif
+	return isAdmin;
+}