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// Licensed under the MIT License.
#region Using directives
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Management.Automation;
using System.Management.Automation.SecurityAccountsManager;
using System.Management.Automation.SecurityAccountsManager.Extensions;
#endregion
namespace Microsoft.PowerShell.Commands
{
/// <summary>
/// The Get-LocalUser cmdlet gets local user accounts from the Windows Security
/// Accounts Manager. This includes local accounts that have been connected to a
/// Microsoft account.
/// </summary>
[Cmdlet(VerbsCommon.Get, "LocalUser",
DefaultParameterSetName = "Default",
HelpUri = "https://go.microsoft.com/fwlink/?LinkId=717980")]
[Alias("glu")]
public class GetLocalUserCommand : Cmdlet
{
#region Instance Data
private Sam sam = null;
#endregion Instance Data
#region Parameter Properties
/// <summary>
/// The following is the definition of the input parameter "Name".
/// Specifies the local user accounts to get from the local Security Accounts
/// Manager. This accepts a name or wildcard string.
/// </summary>
[Parameter(Position = 0,
ValueFromPipeline = true,
ValueFromPipelineByPropertyName = true,
ParameterSetName = "Default")]
[ValidateNotNull]
[SuppressMessage("Microsoft.Performance", "CA1819:PropertiesShouldNotReturnArrays")]
public string[] Name
{
get { return this.name; }
set { this.name = value; }
}
private string[] name;
/// <summary>
/// The following is the definition of the input parameter "SID".
/// Specifies a user from the local Security Accounts Manager.
/// </summary>
[Parameter(Position = 0,
ValueFromPipeline = true,
ValueFromPipelineByPropertyName = true,
ParameterSetName = "SecurityIdentifier")]
[ValidateNotNull]
[SuppressMessage("Microsoft.Performance", "CA1819:PropertiesShouldNotReturnArrays")]
public System.Security.Principal.SecurityIdentifier[] SID
{
get { return this.sid; }
set { this.sid = value; }
}
private System.Security.Principal.SecurityIdentifier[] sid;
#endregion Parameter Properties
#region Cmdlet Overrides
/// <summary>
/// BeginProcessing method.
/// </summary>
protected override void BeginProcessing()
{
sam = new Sam();
}
/// <summary>
/// ProcessRecord method.
/// </summary>
protected override void ProcessRecord()
{
if (Name == null && SID == null)
{
foreach (var user in sam.GetAllLocalUsers())
WriteObject(user);
return;
}
ProcessNames();
ProcessSids();
}
/// <summary>
/// EndProcessing method.
/// </summary>
protected override void EndProcessing()
{
if (sam != null)
{
sam.Dispose();
sam = null;
}
}
#endregion Cmdlet Overrides
#region Private Methods
/// <summary>
/// Process users requested by -Name.
/// </summary>
/// <remarks>
/// All arguments to -Name will be treated as names,
/// even if a name looks like a SID.
/// Users may be specified using wildcards.
/// </remarks>
private void ProcessNames()
{
if (Name != null)
{
foreach (var nm in Name)
{
try
{
if (WildcardPattern.ContainsWildcardCharacters(nm))
{
var pattern = new WildcardPattern(nm, WildcardOptions.Compiled
| WildcardOptions.IgnoreCase);
foreach (var user in sam.GetMatchingLocalUsers(n => pattern.IsMatch(n)))
WriteObject(user);
}
else
{
WriteObject(sam.GetLocalUser(nm));
}
}
catch (Exception ex)
{
WriteError(ex.MakeErrorRecord());
}
}
}
}
/// <summary>
/// Process users requested by -SID.
/// </summary>
private void ProcessSids()
{
if (SID != null)
{
foreach (var s in SID)
{
try
{
WriteObject(sam.GetLocalUser(s));
}
catch (Exception ex)
{
WriteError(ex.MakeErrorRecord());
}
}
}
}
#endregion Private Methods
}
}
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