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<?php |
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declare(strict_types=1); |
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namespace PhpMyAdmin\Server\SysInfo; |
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use com; |
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use Throwable; |
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use function array_merge; |
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use function class_exists; |
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use function intdiv; |
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use function intval; |
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/** |
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* Windows NT based SysInfo class |
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*/ |
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class WindowsNt extends Base |
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{ |
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/** @var object|null */ |
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private $wmiService = null; |
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/** |
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* The OS name |
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* |
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* @var string |
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*/ |
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public $os = 'WINNT'; |
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/** |
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* Constructor to access to wmi database. |
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*/ |
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public function __construct() |
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{ |
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if (! class_exists('com')) { |
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return; |
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} |
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/** |
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* @see https://www.php.net/manual/en/class.com.php |
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* @see https://docs.microsoft.com/en-us/windows/win32/wmisdk/swbemlocator |
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* @see https://docs.microsoft.com/en-us/windows/win32/wmisdk/swbemservices |
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* |
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* @psalm-suppress MixedAssignment, UndefinedMagicMethod |
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*/ |
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$this->wmiService = (new com('WbemScripting.SWbemLocator'))->ConnectServer(); |
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} |
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/** |
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* Gets load information |
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* |
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* @return array with load data |
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*/ |
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public function loadavg() |
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{ |
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return ['loadavg' => $this->getLoadPercentage()]; |
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} |
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/** |
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* Checks whether class is supported in this environment |
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*/ |
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public function supported(): bool |
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{ |
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return $this->wmiService !== null; |
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} |
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/** |
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* Gets information about memory usage |
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* |
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* @return array with memory usage data |
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*/ |
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public function memory() |
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{ |
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return array_merge($this->getSystemMemory(), $this->getPageFileUsage()); |
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} |
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/** |
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* @return array<string, int> |
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* @psalm-return array{MemTotal: int, MemFree: int, MemUsed: int} |
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*/ |
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private function getSystemMemory(): array |
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{ |
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if ($this->wmiService === null) { |
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return ['MemTotal' => 0, 'MemFree' => 0, 'MemUsed' => 0]; |
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} |
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/** |
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* @see https://docs.microsoft.com/en-us/windows/win32/wmisdk/swbemobject-instances- |
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* @see https://docs.microsoft.com/en-us/windows/win32/cimwin32prov/win32-operatingsystem |
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* |
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* @var object[] $instances |
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* @psalm-suppress MixedMethodCall |
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* @phpstan-ignore-next-line |
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*/ |
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$instances = $this->wmiService->Get('Win32_OperatingSystem')->Instances_(); |
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$totalMemory = 0; |
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$freeMemory = 0; |
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foreach ($instances as $instance) { |
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// phpcs:disable Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps |
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$totalMemory += (int) $instance->TotalVisibleMemorySize; /* @phpstan-ignore-line */ |
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$freeMemory += (int) $instance->FreePhysicalMemory; /* @phpstan-ignore-line */ |
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// phpcs:enable |
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} |
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return ['MemTotal' => $totalMemory, 'MemFree' => $freeMemory, 'MemUsed' => $totalMemory - $freeMemory]; |
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} |
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/** |
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* @return array<string, int> |
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* @psalm-return array{SwapTotal: int, SwapUsed: int, SwapPeak: int, SwapFree: int} |
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*/ |
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private function getPageFileUsage(): array |
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{ |
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if ($this->wmiService === null) { |
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return ['SwapTotal' => 0, 'SwapUsed' => 0, 'SwapPeak' => 0, 'SwapFree' => 0]; |
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} |
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/** |
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* @see https://docs.microsoft.com/en-us/windows/win32/wmisdk/swbemobject-instances- |
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* @see https://docs.microsoft.com/en-us/windows/win32/cimwin32prov/win32-pagefileusage |
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* |
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* @var object[] $instances |
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* @psalm-suppress MixedMethodCall |
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* @phpstan-ignore-next-line |
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*/ |
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$instances = $this->wmiService->Get('Win32_PageFileUsage')->Instances_(); |
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$total = 0; |
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$used = 0; |
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$peak = 0; |
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foreach ($instances as $instance) { |
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// phpcs:disable Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps |
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$total += intval($instance->AllocatedBaseSize) * 1024; /* @phpstan-ignore-line */ |
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$used += intval($instance->CurrentUsage) * 1024; /* @phpstan-ignore-line */ |
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$peak += intval($instance->PeakUsage) * 1024; /* @phpstan-ignore-line */ |
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// phpcs:enable |
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} |
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return ['SwapTotal' => $total, 'SwapUsed' => $used, 'SwapPeak' => $peak, 'SwapFree' => $total - $used]; |
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} |
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private function getLoadPercentage(): int |
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{ |
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if ($this->wmiService === null) { |
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return 0; |
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} |
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/** |
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* @see https://docs.microsoft.com/en-us/windows/win32/wmisdk/swbemobject-instances- |
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* @see https://docs.microsoft.com/en-us/windows/win32/cimwin32prov/win32-processor |
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* |
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* @var object[] $instances |
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* @psalm-suppress MixedMethodCall |
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* @phpstan-ignore-next-line |
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*/ |
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$instances = $this->wmiService->Get('Win32_Processor')->Instances_(); |
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$i = 0; |
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$sum = 0; |
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foreach ($instances as $instance) { |
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// phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps |
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$sum += (int) $instance->LoadPercentage; /* @phpstan-ignore-line */ |
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// Can't use count($instances). |
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$i++; |
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} |
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try { |
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return intdiv($sum, $i); |
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} catch (Throwable $throwable) { |
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return 0; |
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} |
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} |
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} |
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phpmyadmin /
phpmyadmin
