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// Licensed under the MIT License.
using System;
using System.Collections;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Management;
using System.Management.Automation;
using System.Management.Automation.Internal;
using System.Management.Automation.Provider;
using System.Runtime.InteropServices;
using System.Security.AccessControl;
using System.Text;
namespace Microsoft.PowerShell.Commands
{
/// <summary>
/// A command to Invoke WMI Method.
/// </summary>
[Cmdlet(VerbsLifecycle.Invoke, "WmiMethod", DefaultParameterSetName = "class", SupportsShouldProcess = true,
HelpUri = "https://go.microsoft.com/fwlink/?LinkID=113346", RemotingCapability = RemotingCapability.OwnedByCommand)]
public sealed class InvokeWmiMethod : WmiBaseCmdlet
{
#region Parameters
/// <summary>
/// The WMI Object to use.
/// </summary>
[Parameter(ValueFromPipeline = true, Mandatory = true, ParameterSetName = "object")]
public ManagementObject InputObject
{
get { return _inputObject; }
set { _inputObject = value; }
}
/// <summary>
/// The WMI Path to use.
/// </summary>
[Parameter(ParameterSetName = "path", Mandatory = true)]
public string Path
{
get { return _path; }
set { _path = value; }
}
/// <summary>
/// The WMI class to use.
/// </summary>
[Parameter(Position = 0, Mandatory = true, ParameterSetName = "class")]
public string Class
{
get { return _className; }
set { _className = value; }
}
/// <summary>
/// The WMI Method to execute.
/// </summary>
[Parameter(Position = 1, Mandatory = true)]
public string Name
{
get { return _methodName; }
set { _methodName = value; }
}
/// <summary>
/// The parameters to the method specified by MethodName.
/// </summary>
[Parameter(ParameterSetName = "path")]
[Parameter(Position = 2, ParameterSetName = "class")]
[Parameter(ParameterSetName = "object")]
[Alias("Args")]
public object[] ArgumentList
{
get { return _argumentList; }
set { _argumentList = value; }
}
#endregion Parameters
#region parameter data
private string _path = null;
private string _className = null;
private string _methodName = null;
private ManagementObject _inputObject = null;
private object[] _argumentList = null;
#endregion parameter data
#region Command code
/// <summary>
/// Invoke WMI method given either path,class name or pipeline input.
/// </summary>
protected override void ProcessRecord()
{
if (this.AsJob)
{
RunAsJob("Invoke-WMIMethod");
return;
}
if (_inputObject != null)
{
object result = null;
ManagementBaseObject inputParameters = null;
try
{
inputParameters = _inputObject.GetMethodParameters(_methodName);
if (_argumentList != null)
{
int inParamCount = _argumentList.Length;
foreach (PropertyData property in inputParameters.Properties)
{
if (inParamCount == 0)
break;
property.Value = _argumentList[_argumentList.Length - inParamCount];
inParamCount--;
}
}
if (!ShouldProcess(
StringUtil.Format(WmiResources.WmiMethodNameForConfirmation,
_inputObject["__CLASS"].ToString(),
this.Name)
))
{
return;
}
result = _inputObject.InvokeMethod(_methodName, inputParameters, null);
}
catch (ManagementException e)
{
ErrorRecord errorRecord = new ErrorRecord(e, "InvokeWMIManagementException", ErrorCategory.InvalidOperation, null);
WriteError(errorRecord);
}
catch (System.Runtime.InteropServices.COMException e)
{
ErrorRecord errorRecord = new ErrorRecord(e, "InvokeWMICOMException", ErrorCategory.InvalidOperation, null);
WriteError(errorRecord);
}
if (result != null)
{
WriteObject(result);
}
return;
}
else
{
ConnectionOptions options = GetConnectionOption();
ManagementPath mPath = null;
object result = null;
ManagementObject mObject = null;
if (_path != null)
{
mPath = new ManagementPath(_path);
if (string.IsNullOrEmpty(mPath.NamespacePath))
{
mPath.NamespacePath = this.Namespace;
}
else if (namespaceSpecified)
{
// ThrowTerminatingError
ThrowTerminatingError(new ErrorRecord(
new InvalidOperationException(),
"NamespaceSpecifiedWithPath",
ErrorCategory.InvalidOperation,
this.Namespace));
}
if (mPath.Server != "." && serverNameSpecified)
{
// ThrowTerminatingError
ThrowTerminatingError(new ErrorRecord(
new InvalidOperationException(),
"ComputerNameSpecifiedWithPath",
ErrorCategory.InvalidOperation,
ComputerName));
}
// If server name is specified loop through it.
if (!(mPath.Server == "." && serverNameSpecified))
{
string[] serverName = new string[] { mPath.Server };
ComputerName = serverName;
}
}
foreach (string name in ComputerName)
{
result = null;
try
{
if (_path != null)
{
mPath.Server = name;
if (mPath.IsClass)
{
ManagementClass mClass = new ManagementClass(mPath);
mObject = mClass;
}
else
{
ManagementObject mInstance = new ManagementObject(mPath);
mObject = mInstance;
}
ManagementScope mScope = new ManagementScope(mPath, options);
mObject.Scope = mScope;
}
else
{
ManagementScope scope = new ManagementScope(WMIHelper.GetScopeString(name, this.Namespace), options);
ManagementClass mClass = new ManagementClass(_className);
mObject = mClass;
mObject.Scope = scope;
}
ManagementBaseObject inputParameters = mObject.GetMethodParameters(_methodName);
if (_argumentList != null)
{
int inParamCount = _argumentList.Length;
foreach (PropertyData property in inputParameters.Properties)
{
if (inParamCount == 0)
break;
object argument = PSObject.Base(_argumentList[_argumentList.Length - inParamCount]);
if (property.IsArray)
{
property.Value = MakeBaseObjectArray(argument);
}
else
{
property.Value = argument;
}
inParamCount--;
}
}
if (!ShouldProcess(
StringUtil.Format(WmiResources.WmiMethodNameForConfirmation,
mObject["__CLASS"].ToString(),
this.Name)
))
{
return;
}
result = mObject.InvokeMethod(_methodName, inputParameters, null);
}
catch (ManagementException e)
{
ErrorRecord errorRecord = new ErrorRecord(e, "InvokeWMIManagementException", ErrorCategory.InvalidOperation, null);
WriteError(errorRecord);
}
catch (System.Runtime.InteropServices.COMException e)
{
ErrorRecord errorRecord = new ErrorRecord(e, "InvokeWMICOMException", ErrorCategory.InvalidOperation, null);
WriteError(errorRecord);
}
if (result != null)
{
WriteObject(result);
}
}
}
}
/// <summary>
/// Ensure that the argument is a collection containing no PSObjects.
/// </summary>
/// <param name="argument"></param>
/// <returns></returns>
private static object MakeBaseObjectArray(object argument)
{
if (argument == null)
return null;
IList listArgument = argument as IList;
if (listArgument == null)
{
return new object[] { argument };
}
bool needCopy = false;
foreach (object argElement in listArgument)
{
if (argElement is PSObject)
{
needCopy = true;
break;
}
}
if (needCopy)
{
var copiedArgument = new object[listArgument.Count];
int index = 0;
foreach (object argElement in listArgument)
{
copiedArgument[index++] = argElement != null ? PSObject.Base(argElement) : null;
}
return copiedArgument;
}
else
{
return argument;
}
}
#endregion Command code
}
}
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