EmailBox.ascx.cs :  » Bloggers » dasBlog » newtelligence » DasBlog » Web » C# / CSharp Open Source

using System;
using System.Web;
using System.Web.UI;
using System.Text;
using System.Net;
using System.Net.Mail;

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

namespace newtelligence.DasBlog.Web{


  /// <summary>
  ///    Summary description for EmailBox.
  /// </summary>
  public partial class EmailBox :UserControl
  {

    protected System.Resources.ResourceManager resmgr;
    private SharedBasePage requestPage;

    protected void Page_Load(object sender, System.EventArgs e)
    {
      requestPage = Page as SharedBasePage;
        
      // if you are commenting on your own blog, no need for Captha
      if (SiteSecurity.IsValidContributor())
      {
        CaptchaControl1.Enabled = CaptchaControl1.Visible = false;        
      }
      else
      {
        CaptchaControl1.Enabled = CaptchaControl1.Visible = requestPage.SiteConfig.EnableCaptcha;
      }

      resmgr = ApplicationResourceTable.Get();

      if (!IsPostBack)
      {
        if (Request.Cookies["name"] != null)
        {
          string nameStr = HttpUtility.UrlDecode(Request.Cookies["name"].Value, Encoding.UTF8);
          //truncate at 32 chars to avoid abuse...
          name.Text = nameStr.Substring(0,Math.Min(32,nameStr.Length));
        }

        if (Request.Cookies["email"] != null)
        {
          email.Text = HttpUtility.UrlDecode(Request.Cookies["email"].Value, Encoding.UTF8);
        }
      }
      
      DataBind();
    }

    #region Web Form Designer generated code
    override protected void OnInit(EventArgs e)
    {
            
      //
      // CODEGEN: This call is required by the ASP.NET Web Form Designer.
      //
      InitializeComponent();
      base.OnInit(e);
    }
    
    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    private void InitializeComponent()
    {    

    }
    #endregion

    
    protected void mailSend_Click(object sender, System.EventArgs e)
    {
      

      if (CaptchaControl1.Enabled && requestPage.SiteConfig.EnableCaptcha == true)
      {
        if (CaptchaControl1.UserValidated == false) 
        {
          return;
        }
      }
      
      if ( Page.IsValid )
      {
        if (rememberMe.Checked)
        {
          string path = HttpRuntime.AppDomainAppVirtualPath;
          
          //We don't encode the name so High Latin folks like Ren Drie?el don't break
          // the Http Input Validation stuff.
          HttpCookie cookieName = new HttpCookie("name",name.Text);
          cookieName.Path = path;
          Response.Cookies.Add(cookieName);

          HttpCookie cookieEmail = new HttpCookie("email", HttpUtility.HtmlEncode(email.Text));
          cookieEmail.Path = path;
          Response.Cookies.Add(cookieEmail);
                    
          Response.Cookies["name"].Expires = DateTime.MaxValue;
          Response.Cookies["email"].Expires = DateTime.MaxValue;
        }

                if ( requestPage.SiteConfig.SendCommentsByEmail && !String.IsNullOrEmpty(requestPage.SiteConfig.SmtpServer))
        {
          SendMailInfo defaultMailInfo = ComposeMail();
      
          requestPage.DataService.RunActions(new object[] { defaultMailInfo});
            
          string commentShort = defaultMailInfo.Message.Body.Replace("\n"," ");
          if ( commentShort.Length > 50 )
          {
            commentShort = commentShort.Substring(0,50)+"...";
          }
          requestPage.LoggingService.AddEvent(new EventDataItem(EventCodes.CommentEmail,
          commentShort ,  string.Format("{0} {1}", defaultMailInfo.Message.From,  HttpUtility.HtmlEncode(name.Text)  )));
        }
        Response.Redirect(SiteUtilities.GetStartPageUrl(requestPage.SiteConfig), false);
      }
    }


    private SendMailInfo ComposeMail()
    {
      

      MailMessage emailMessage = new MailMessage();

      if (requestPage.SiteConfig.NotificationEMailAddress != null && 
        requestPage.SiteConfig.NotificationEMailAddress.Length > 0 )
      {
        emailMessage.To.Add(requestPage.SiteConfig.NotificationEMailAddress);
      }
      else
      {
        emailMessage.To.Add(requestPage.SiteConfig.Contact);
      }

            string from = HttpUtility.HtmlEncode(email.Text);

      emailMessage.Subject = String.Format
        ( "Weblog Mail from '{0} ({1})' on '{2}'"
        , HttpUtility.HtmlEncode(name.Text)
                , from
        , HttpUtility.HtmlEncode(requestPage.SiteConfig.Title));

      emailMessage.Body =  HttpUtility.HtmlEncode (comment.Text);
            emailMessage.IsBodyHtml = false;
      emailMessage.BodyEncoding = System.Text.Encoding.UTF8;
      
      if (from != null && from.Length > 0 )
      {
        emailMessage.From = new MailAddress(from);
      }
      else
      {
        emailMessage.From = new MailAddress(requestPage.SiteConfig.Contact);
      }

      emailMessage.Headers.Add("Sender", requestPage.SiteConfig.Contact);
            
      // add the X-Originating-IP header
      string hostname = Dns.GetHostName();
      IPHostEntry ipHostEntry = Dns.GetHostEntry(hostname);
            
      if (ipHostEntry.AddressList.Length > 0)
      {
        emailMessage.Headers.Add("X-Originating-IP", ipHostEntry.AddressList[0].ToString());
      }
      SendMailInfo sendMailInfo = new SendMailInfo(emailMessage, requestPage.SiteConfig.SmtpServer,
        requestPage.SiteConfig.EnableSmtpAuthentication,  requestPage.SiteConfig.UseSSLForSMTP, requestPage.SiteConfig.SmtpUserName, 
        requestPage.SiteConfig.SmtpPassword, requestPage.SiteConfig.SmtpPort);

      return sendMailInfo;
    }
  }
}