The remote server returned an error: (401) Unauthorized

Question

I m trying to embed Bulk SMS API in my website ...But the code is giving 401

ASPX :

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>%> 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html xmlns="http://www.w3.org/1999/xhtml" > 
<head id="Head1" runat="server"> 
  <title>Send SMS</title> 
</head> 
<body> 
  <form id="form2" runat="server"> 
    <div> 
    </div> 
  </form> 
</body> 
</html>

ASPX.CS

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text;
using System.IO;
using System.Net;
using System.Web.Services;

public partial class _Default : System.Web.UI.Page 
{
     public void SendSMS()
    {
        UriBuilder urlBuilder = new UriBuilder();
        urlBuilder.Host = "IP";
        urlBuilder.Port = port;

        string UserName = "username";
        string password = "password";
        string PhoneNumber = "919999999999";
        string Text = "Testing";
        string Sender = "sender name";

        urlBuilder.Query = string.Format("user=" + UserName + "password=" + password + "PhoneNumber=" + PhoneNumber + "&Text=" + Text + "&Sender=" + Sender);

        HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(new Uri(urlBuilder.ToString(), false));
        HttpWebResponse httpResponse = (HttpWebResponse)(httpReq.GetResponse());
    }



    protected void Page_Load(object sender, EventArgs e)
    {
        SendSMS();
    }

}

IP ,port ,username , password ,9999999999 , sender name are all substitutions.. — KK., Feb 14 '10 at 16:01

score 1 · Answer 1 · answered Feb 14 '10 at 15:39

1

This code:

    urlBuilder.Host = "IP";
    urlBuilder.Port = port;

Is telling your HttpWebRequest to go to http://IP:port as in literally the server IP. http://IP doesn't exist, you need to put the actual hostname there, like "www.google.com"...whatever server you're trying to hit.

answered Feb 14 '10 at 15:39

Nick Craver

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@KK - So there's no path? Just `http://host:port/?user=usernamepassword=passwordPhoneNumber=91999999999&Text=Testing&Sender=sender%20name`? Note: you probably wanted some more `&` between your query parameters there. – Nick Craver Feb 14 '10 at 16:04
ohh shit ..i forgot & at 2 locations Thanx man ...i wasted lots of time on this ..thanx again .. – KK. Feb 14 '10 at 16:13

score 0 · Answer 2 · answered Feb 14 '10 at 16:28

The problem is most likely in:

urlBuilder.Query = string.Format("user=" + UserName + "password=" + password + "PhoneNumber=" + PhoneNumber + "&Text=" + Text + "&Sender=" + Sender);

You're missing a few &s. Should probably be something like:

urlBuilder.Query = string.Format("user=" + UserName + "&password=" + password + "&PhoneNumber=" + PhoneNumber + "&Text=" + Text + "&Sender=" + Sender);

Edit: Also there is no reason to be using string.Format() here. This would work the same:

urlBuilder.Query = "user=" + UserName + "&password=" + password + "&PhoneNumber=" + PhoneNumber + "&Text=" + Text + "&Sender=" + Sender;

The remote server returned an error: (401) Unauthorized

2 Answers2