ApproveItemHandler.cs :  » Bloggers » dasBlog » newtelligence » DasBlog » Web » Services » C# / CSharp Open Source

using System;
using System.Web;
using newtelligence.DasBlog.Runtime;
using newtelligence.DasBlog.Web.Core;


namespace newtelligence.DasBlog.Web.Services{
  
  /// <summary>
  /// Currently only used to approve comments, but can easily be modified 
  /// to approve other content types (entries, trackbacks etc.).
  /// </summary>
  public class ApproveItemHandler : IHttpHandler
  {
    
    public ApproveItemHandler()
    {
      // ...
    }

    public bool IsReusable {
      get 
      {
        return true;
      }
    }

    public void ProcessRequest( HttpContext context ) 
    {

      if( !SiteSecurity.IsValidContributor()){
        context.Response.Redirect("~/FormatPage.aspx?path=SiteConfig/accessdenied.format.html");
      }

      SiteConfig siteConfig = SiteConfig.GetSiteConfig();
      
      string entryId;
      string commentId;
      string referralPermalink;
      string type;
      string redirectUrl = SiteUtilities.GetStartPageUrl();

      entryId = context.Request.QueryString["entryId"];
      commentId = context.Request.QueryString["commentId"];
      referralPermalink = context.Request.QueryString["referralPermalink"];
      type = context.Request.QueryString["type"];

      // make sure the entry param is there
      if (entryId == null || entryId.Length == 0) {
        context.Response.Redirect(SiteUtilities.GetStartPageUrl(siteConfig));
        return;
      }
      else {
        try {

          ILoggingDataService logService = LoggingDataServiceFactory.GetService(SiteConfig.GetLogPathFromCurrentContext());
          IBlogDataService dataService = BlogDataServiceFactory.GetService(SiteConfig.GetContentPathFromCurrentContext(), logService );
      
          Entry entry = dataService.GetEntry( entryId );
          if ( entry != null ) {
            if (commentId != null && commentId.Length > 0) {

              ISpamBlockingService spamBlockingService = siteConfig.SpamBlockingService;
              if (spamBlockingService != null) 
              {
                Comment comment = dataService.GetCommentById(entryId, commentId);
                if ( (comment != null) && (comment.SpamState == SpamState.Spam) )
                {
                  try 
                  {
                    spamBlockingService.ReportNotSpam(comment);
                  }
                  catch(Exception ex)
                  {
                    logService.AddEvent(new EventDataItem(EventCodes.Error, String.Format("Unable to report comment {0} incorrectly marked as spam. Original exception: {1}", comment.EntryId, ex), SiteUtilities.GetPermaLinkUrl(entryId)));
                  }
                }
              }

              dataService.ApproveComment(entryId, commentId);

              logService.AddEvent(
                new EventDataItem( 
                EventCodes.CommentApproved, commentId, 
                SiteUtilities.GetPermaLinkUrl(entryId)));
  
              redirectUrl = SiteUtilities.GetCommentViewUrl(entryId);
            }
          }
        }
        catch( Exception exc ) {
          // absorb
          ErrorTrace.Trace(System.Diagnostics.TraceLevel.Error,exc);
        }
      }

      context.Response.Redirect(redirectUrl);
    }
  }
}