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// Licensed under the MIT License.
#if !UNIX
using System;
using System.Diagnostics.CodeAnalysis;
using System.Management;
using System.Management.Automation;
using System.Management.Automation.Internal;
using System.Security.Principal;
using System.Text;
namespace Microsoft.PowerShell.Commands
{
#region Get-HotFix
/// <summary>
/// Cmdlet for Get-Hotfix Proxy.
/// </summary>
[Cmdlet(VerbsCommon.Get, "HotFix", DefaultParameterSetName = "Default",
HelpUri = "https://go.microsoft.com/fwlink/?linkid=2109716", RemotingCapability = RemotingCapability.SupportedByCommand)]
[OutputType(@"System.Management.ManagementObject#root\cimv2\Win32_QuickFixEngineering")]
public sealed class GetHotFixCommand : PSCmdlet, IDisposable
{
#region Parameters
/// <summary>
/// Specifies the HotFixID. Unique identifier associated with a particular update.
/// </summary>
[Parameter(Position = 0, ParameterSetName = "Default")]
[ValidateNotNullOrEmpty]
[Alias("HFID")]
[SuppressMessage("Microsoft.Performance", "CA1819:PropertiesShouldNotReturnArrays")]
public string[] Id { get; set; }
/// <summary>
/// To search on description of Hotfixes.
/// </summary>
[Parameter(ParameterSetName = "Description")]
[ValidateNotNullOrEmpty]
[SuppressMessage("Microsoft.Performance", "CA1819:PropertiesShouldNotReturnArrays")]
public string[] Description { get; set; }
/// <summary>
/// Parameter to pass the Computer Name.
/// </summary>
[Parameter(ValueFromPipelineByPropertyName = true)]
[ValidateNotNullOrEmpty]
[Alias("CN", "__Server", "IPAddress")]
[SuppressMessage("Microsoft.Performance", "CA1819:PropertiesShouldNotReturnArrays")]
public string[] ComputerName { get; set; } = new string[] { "localhost" };
/// <summary>
/// Parameter to pass the Credentials.
/// </summary>
[Parameter]
[Credential]
[ValidateNotNullOrEmpty]
public PSCredential Credential { get; set; }
#endregion Parameters
#region Overrides
private ManagementObjectSearcher _searchProcess;
private bool _inputContainsWildcard = false;
private readonly ConnectionOptions _connectionOptions = new();
/// <summary>
/// Sets connection options.
/// </summary>
protected override void BeginProcessing()
{
_connectionOptions.Authentication = AuthenticationLevel.Packet;
_connectionOptions.Impersonation = ImpersonationLevel.Impersonate;
_connectionOptions.Username = Credential?.UserName;
_connectionOptions.SecurePassword = Credential?.Password;
}
/// <summary>
/// Get the List of HotFixes installed on the Local Machine.
/// </summary>
protected override void ProcessRecord()
{
foreach (string computer in ComputerName)
{
bool foundRecord = false;
StringBuilder queryString = new();
ManagementScope scope = new(ComputerWMIHelper.GetScopeString(computer, ComputerWMIHelper.WMI_Path_CIM), _connectionOptions);
scope.Connect();
if (Id != null)
{
queryString.Append("Select * from Win32_QuickFixEngineering where (");
for (int i = 0; i <= Id.Length - 1; i++)
{
queryString.Append("HotFixID= '");
queryString.Append(Id[i].Replace("'", "\\'"));
queryString.Append('\'');
if (i < Id.Length - 1)
{
queryString.Append(" Or ");
}
}
queryString.Append(')');
}
else
{
queryString.Append("Select * from Win32_QuickFixEngineering");
foundRecord = true;
}
_searchProcess = new ManagementObjectSearcher(scope, new ObjectQuery(queryString.ToString()));
foreach (ManagementObject obj in _searchProcess.Get())
{
if (Description != null)
{
if (!FilterMatch(obj))
{
continue;
}
}
else
{
_inputContainsWildcard = true;
}
// try to translate the SID to a more friendly username
// just stick with the SID if anything goes wrong
string installed = (string)obj["InstalledBy"];
if (!string.IsNullOrEmpty(installed))
{
try
{
SecurityIdentifier secObj = new(installed);
obj["InstalledBy"] = secObj.Translate(typeof(NTAccount));
}
catch (IdentityNotMappedException)
{
// thrown by SecurityIdentifier.Translate
}
catch (SystemException)
{
// thrown by SecurityIdentifier.constr
}
}
WriteObject(obj);
foundRecord = true;
}
if (!foundRecord && !_inputContainsWildcard)
{
Exception ex = new ArgumentException(StringUtil.Format(HotFixResources.NoEntriesFound, computer));
WriteError(new ErrorRecord(ex, "GetHotFixNoEntriesFound", ErrorCategory.ObjectNotFound, null));
}
if (_searchProcess != null)
{
this.Dispose();
}
}
}
/// <summary>
/// To implement ^C.
/// </summary>
protected override void StopProcessing()
{
_searchProcess?.Dispose();
}
#endregion Overrides
#region "Private Methods"
private bool FilterMatch(ManagementObject obj)
{
try
{
foreach (string desc in Description)
{
WildcardPattern wildcardpattern = WildcardPattern.Get(desc, WildcardOptions.IgnoreCase);
if (wildcardpattern.IsMatch((string)obj["Description"]))
{
return true;
}
if (WildcardPattern.ContainsWildcardCharacters(desc))
{
_inputContainsWildcard = true;
}
}
}
catch (Exception)
{
return false;
}
return false;
}
#endregion "Private Methods"
#region "IDisposable Members"
/// <summary>
/// Release all resources.
/// </summary>
public void Dispose()
{
_searchProcess?.Dispose();
}
#endregion "IDisposable Members"
}
#endregion
}
#endif
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