//-----------------------------------------------------------------------

// <copyright>

// Copyright (C) Ruslan Yakushev for the PHP Manager for IIS project.

//

// This file is subject to the terms and conditions of the Microsoft Public License (MS-PL).

// See http://www.microsoft.com/opensource/licenses.mspx#Ms-PL for more details.

// </copyright>

//-----------------------------------------------------------------------

using System;

using System.IO;

using System.Management.Automation;

using System.Security.Principal;

namespace Web.Management.PHP.Powershell

{

public abstract class BaseCmdlet : PSCmdlet

{

[Parameter(ValueFromPipeline = false)]

public string SiteName { get; set; }

[Parameter(ValueFromPipeline = false)]

public string VirtualPath { get; set; }

protected abstract void DoProcessing();

protected void EnsureAdminUser()

{

var identity = WindowsIdentity.GetCurrent();

var principal = new WindowsPrincipal(identity);

var sidAdmin = new SecurityIdentifier(WellKnownSidType.BuiltinAdministratorsSid, null);

if (!principal.IsInRole(sidAdmin))

{

var exception = new UnauthorizedAccessException(Resources.UserIsNotAdminError);

ReportTerminatingError(exception, "UnathorizedAccess", ErrorCategory.PermissionDenied);

}

}

protected static WildcardPattern PrepareWildcardPattern(string pattern)

{

const WildcardOptions options = WildcardOptions.IgnoreCase | WildcardOptions.Compiled;

WildcardPattern wildcard;

if (!String.IsNullOrEmpty(pattern))

{

wildcard = new WildcardPattern(pattern, options);

}

else

{

wildcard = new WildcardPattern("*", options);

}

return wildcard;

}

protected override void ProcessRecord()

{

EnsureAdminUser();

try

{

DoProcessing();

}

catch (FileNotFoundException ex)

{

ReportTerminatingError(ex, "FileNotFound", ErrorCategory.ObjectNotFound);

}

catch (InvalidOperationException ex)

{

ReportTerminatingError(ex, "InvalidOperation", ErrorCategory.InvalidOperation);

}

}

protected void ReportNonTerminatingError(Exception exception, string errorId, ErrorCategory errorCategory)

{

var errorRecord = new ErrorRecord(exception, errorId, errorCategory, null);

WriteError(errorRecord);

}

protected void ReportTerminatingError(Exception exception, string errorId, ErrorCategory errorCategory)

{

var errorRecord = new ErrorRecord(exception, errorId, errorCategory, null);

ThrowTerminatingError(errorRecord);

}

}

}