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fix: ported first part of IsVirtualRegistry to use IRegistry

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This commit is contained in:
Notselwyn 2023-07-17 17:06:46 +02:00
parent e99bdabc51
commit 3b8f552138
1 changed files with 19 additions and 16 deletions
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35
SafeExamBrowser.SystemComponents/VirtualMachineDetector.cs
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@ -111,14 +111,16 @@ namespace SafeExamBrowser.SystemComponents
*
*/
IEnumerable<string> hardwareConfigSubkeys;
if (!registry.TryGetSubKeys("HKLM\\SYSTEM\\HardwareConfig", out hardwareConfigSubkeys))
const string hwConfigParentKey = "HKEY_LOCAL_MACHINE\\SYSTEM\\HardwareConfig";
if (!registry.TryGetSubKeys(hwConfigParentKey, out hardwareConfigSubkeys))
return false;
foreach (string configId in hardwareConfigSubkeys)
{
logger.Info($"scanning configId: {configId}");
var configKey = $"HKEY_LOCAL_MACHINE\\SYSTEM\\HardwareConfig\\{configId}";
var hwConfigKey = $"{hwConfigParentKey}\\{configId}";
// collect system values for IsVirtualSystemInfo()
object biosVendor;
object biosVersion;
object systemManufacturer;
@ -126,10 +128,10 @@ namespace SafeExamBrowser.SystemComponents
bool success = true;
success &= registry.TryRead(configKey, "BIOSVendor", out biosVendor);
success &= registry.TryRead(configKey, "BIOSVersion", out biosVersion);
success &= registry.TryRead(configKey, "SystemManufacturer", out systemManufacturer);
success &= registry.TryRead(configKey, "SystemProductName", out systemProductName);
success &= registry.TryRead(hwConfigKey, "BIOSVendor", out biosVendor);
success &= registry.TryRead(hwConfigKey, "BIOSVersion", out biosVersion);
success &= registry.TryRead(hwConfigKey, "SystemManufacturer", out systemManufacturer);
success &= registry.TryRead(hwConfigKey, "SystemProductName", out systemProductName);
if (!success)
continue;
@ -139,18 +141,19 @@ namespace SafeExamBrowser.SystemComponents
isVirtualMachine |= IsVirtualSystemInfo(biosInfo, (string) systemManufacturer, (string) systemProductName);
// hardware information of profile throughout installation etc.
IEnumerable<string> computerIds;
if (!registry.TryGetSubKeys($"HKLM\\SYSTEM\\HardwareConfig\\{configId}\\ComputerIds", out computerIds))
return false;
// check even more hardware information
IEnumerable<string> computerIdNames;
var computerIdsKey = $"{hwConfigKey}\\ComputerIds";
if (!registry.TryGetNames(computerIdsKey, out computerIdNames))
continue;
foreach (var computerId in computerIds)
foreach (var computerIdName in computerIdNames)
{
logger.Info($"computerId: {computerId}");
// e.g. manufacturer&version&sku&...
object computerSummary; // = (string) computerIds.GetValue(computerId);
if (!registry.TryRead($"HKLM\\SYSTEM\\HardwareConfig\\{configId}\\ComputerIds", computerId, out computerSummary))
logger.Info($"computerId: {computerIdName}");
// collect computer hardware summary (e.g. manufacturer&version&sku&...)
object computerSummary;
if (!registry.TryRead(computerIdsKey, computerIdName, out computerSummary))
continue;
isVirtualMachine |= IsVirtualSystemInfo((string) computerSummary, (string) systemManufacturer, (string) systemProductName);