ckfinder/_source/Connector/CommandHandlers/ThumbnailCommandHandler.cs

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/*
 * CKFinder
 * ========
 * http://ckfinder.com
 * Copyright (C) 2007-2012, CKSource - Frederico Knabben. All rights reserved.
 *
 * The software, this file and its contents are subject to the CKFinder
 * License. Please read the license.txt file before using, installing, copying,
 * modifying or distribute this file or part of its contents. The contents of
 * this file is part of the Source Code of CKFinder.
 */

using System;
using System.Web;

namespace CKFinder.Connector.CommandHandlers
{
	internal class ThumbnailCommandHandler : CommandHandlerBase
	{
		public ThumbnailCommandHandler()
			: base()
		{
		}

		public override void SendResponse( System.Web.HttpResponse response )
		{
			this.CheckConnector();

			try
			{
				this.CheckRequest();
			}
			catch ( ConnectorException connectorException )
			{
				response.AddHeader( "X-CKFinder-Error", ( connectorException.Number ).ToString() );
				response.StatusCode = 403;
				response.End();
				return;
			}
			catch
			{
				response.AddHeader( "X-CKFinder-Error", ( (int)Errors.Unknown ).ToString() );
				response.StatusCode = 403;
				response.End();
				return;
			}

			if ( !Config.Current.Thumbnails.Enabled )
			{
				response.AddHeader( "X-CKFinder-Error", ((int)Errors.ThumbnailsDisabled).ToString() );
				response.StatusCode = 403;
				response.End();
				return;
			}

			if ( !this.CurrentFolder.CheckAcl( AccessControlRules.FileView ) )
			{
				response.AddHeader( "X-CKFinder-Error", ( (int)Errors.Unauthorized ).ToString() );
				response.StatusCode = 403;
				response.End();