DavDeleteBase.cs :  » Network-Servers » WebDAV.NET-Server » Sphorium » WebDAV » Server » Framework » BaseClasses » C# / CSharp Open Source

using System;

using Sphorium.WebDAV.Server.Framework.Resources;
using Sphorium.WebDAV.Server.Framework.Interfaces;
using Sphorium.WebDAV.Server.Framework.Collections;

namespace Sphorium.WebDAV.Server.Framework.BaseClasses{
  /// <summary>
  /// Dav Resource Delete Framework Base Class
  /// </summary>
  /// <remarks>
  ///    RFC2518 Compliant
  ///    
  ///    <code>
  ///    The ProcessDavRequest event must follow the following rules addressed in RFC2518
  ///      http://www.webdav.org/specs/rfc2518.html#METHOD_DELETE
  ///    </code>
  ///    
  ///    <code>
  ///      Returns DavDeleteResponseCode.NoContent when successful
  ///    </code>
  ///    <seealso cref="DavDeleteResponseCode"/>
  ///    <seealso cref="DavMethodBase.AbortRequest(System.Enum)"/>
  /// </remarks>  
  public abstract class DavDeleteBase : DavMethodBase, IDavRequestProcessError
  {
    /// <summary>
    /// Dav Resource Delete Framework Base Class
    /// </summary>
    protected DavDeleteBase()
    {
      this.ValidateDavRequest += new DavRequestValidator(DavDeleteBase_ValidateDavRequest);
      this.InternalProcessDavRequest += new DavInternalProcessHandler(DavDeleteBase_InternalProcessDavRequest);

      this.ProcessErrors = new DavProcessErrorCollection();
    }

    /// <summary>
    /// WebDav DELETE Response Codes
    /// </summary>
    protected enum DavDeleteResponseCode : int
    {
      /// <summary>
      /// 0: None
      /// </summary>
      /// <remarks>
      ///    Default enumerator value
      /// </remarks>
      None = 0,

      /// <summary>
      /// 102: Processing
      /// </summary>
      Processing = 102,

      /// <summary>
      /// 204: NoContent
      /// </summary>
      /// <remarks>
      ///    The delete command completed successfully
      ///  </remarks>
      NoContent = 204,

      /// <summary>
      /// 423: Locked
      /// </summary>
      /// <remarks>
      ///    The resource is locked
      ///  </remarks>
      Locked = 423
    }

    /// <summary>
    /// Ensure the Dav request is valid
    /// </summary>
    /// <returns></returns>
    private int DavDeleteBase_ValidateDavRequest(object sender, EventArgs e)
    {
      int _status = (int)ServerResponseCode.Ok;

      if (base.RequestDepth != DepthType.Infinity)
        _status = (int)ServerResponseCode.BadRequest;

      if (base.RequestLength != 0)
        _status = (int)ServerResponseCode.BadRequest;

      return _status;
    }

    private int DavDeleteBase_InternalProcessDavRequest(object sender, EventArgs e)
    {
      int _responseCode = (int)DavDeleteResponseCode.NoContent;

      //Check to see if there were any process errors...
      Enum[] _errorResources = this.ProcessErrorResources;
      if (_errorResources.Length > 0)
      {
        base.SetResponseXml(InternalFunctions.ProcessErrorRequest(this.ProcessErrors));
        _responseCode = (int)ServerResponseCode.MultiStatus;
      }

      return _responseCode;
    }


    #region IDavRequestProcessError Members
      /// <summary>
      /// Processing errors 
      /// </summary>
      private DavProcessErrorCollection ProcessErrors { get; set; }

      /// <summary>
      /// Clear the current processing errors
      /// </summary>
      public void ClearProcessErrors()
      {
        this.ProcessErrors.Clear();
      }

      /// <summary>
      /// Add a resource to the error list
      /// </summary>
      /// <param name="resource"></param>
      /// <param name="errorCode"></param>
      public void AddProcessErrorResource(DavResourceBase resource, Enum errorCode)
      {
        this.ProcessErrors.Add(resource, errorCode);
      }

      /// <summary>
      /// Retrieve all the process errors
      /// </summary>
      public Enum[] ProcessErrorResources
      {
        get
        {
          return this.ProcessErrors.AllResourceErrors;
        }
      }
    #endregion
  }
}