Update website

admin/phpMyAdmin/libraries/classes/Server/SysInfo/WindowsNt.php

@@ -0,0 +1,147 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpMyAdmin\Server\SysInfo;
+
+use COM;
+
+use function class_exists;
+use function count;
+use function in_array;
+use function is_string;
+use function trim;
+
+/**
+ * Windows NT based SysInfo class
+ */
+class WindowsNt extends Base
+{
+    /** @var COM|null */
+    private $wmi;
+
+    /**
+     * The OS name
+     *
+     * @var string
+     */
+    public $os = 'WINNT';
+
+    /**
+     * Constructor to access to wmi database.
+     */
+    public function __construct()
+    {
+        if (! class_exists('COM')) {
+            $this->wmi = null;
+
+            return;
+        }
+
+        // initialize the wmi object
+        $objLocator = new COM('WbemScripting.SWbemLocator');
+        $this->wmi = $objLocator->ConnectServer();
+    }
+
+    /**
+     * Gets load information
+     *
+     * @return array with load data
+     */
+    public function loadavg()
+    {
+        $sum = 0;
+        $buffer = $this->getWMI('Win32_Processor', ['LoadPercentage']);
+
+        foreach ($buffer as $load) {
+            $value = $load['LoadPercentage'];
+            $sum += $value;
+        }
+
+        return ['loadavg' => $sum / count($buffer)];
+    }
+
+    /**
+     * Checks whether class is supported in this environment
+     */
+    public function supported(): bool
+    {
+        return $this->wmi !== null;
+    }
+
+    /**
+     * Reads data from WMI
+     *
+     * @param string $strClass Class to read
+     * @param array  $strValue Values to read
+     *
+     * @return array with results
+     */
+    private function getWMI($strClass, array $strValue = [])
+    {
+        $arrData = [];
+
+        $objWEBM = $this->wmi->Get($strClass);
+        // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+        $arrProp = $objWEBM->Properties_;
+        $arrWEBMCol = $objWEBM->Instances_();
+        foreach ($arrWEBMCol as $objItem) {
+            $arrInstance = [];
+            foreach ($arrProp as $propItem) {
+                // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+                $name = $propItem->Name;
+                if (! empty($strValue) && ! in_array($name, $strValue)) {
+                    continue;
+                }
+
+                $value = $objItem->$name;
+                if (is_string($value)) {
+                    $arrInstance[$name] = trim($value);
+                } else {
+                    $arrInstance[$name] = $value;
+                }
+            }
+
+            $arrData[] = $arrInstance;
+        }
+
+        return $arrData;
+    }
+
+    /**
+     * Gets information about memory usage
+     *
+     * @return array with memory usage data
+     */
+    public function memory()
+    {
+        $buffer = $this->getWMI(
+            'Win32_OperatingSystem',
+            [
+                'TotalVisibleMemorySize',
+                'FreePhysicalMemory',
+            ]
+        );
+        $mem = [];
+        $mem['MemTotal'] = $buffer[0]['TotalVisibleMemorySize'];
+        $mem['MemFree'] = $buffer[0]['FreePhysicalMemory'];
+        $mem['MemUsed'] = $mem['MemTotal'] - $mem['MemFree'];
+
+        $buffer = $this->getWMI('Win32_PageFileUsage');
+
+        $mem['SwapTotal'] = 0;
+        $mem['SwapFree'] = 0;
+        $mem['SwapUsed'] = 0;
+        $mem['SwapPeak'] = 0;
+
+        foreach ($buffer as $swapdevice) {
+            $mem['SwapTotal'] += $swapdevice['AllocatedBaseSize'] * 1024;
+            $mem['SwapUsed'] += $swapdevice['CurrentUsage'] * 1024;
+            $mem['SwapPeak'] += $swapdevice['PeakUsage'] * 1024;
+        }
+
+        $mem['SwapFree'] = $mem['SwapTotal'] - $mem['SwapUsed'];
+
+        return $mem;
+    }
+}