//smssend.sapx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="smssend.aspx.cs" Inherits="_Default" validateRequest="false" %>
How to send SMS using ASP.NET through HTTP
//smssend.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.Net;
using System.Text.RegularExpressions;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
textboxRecipient.Width = 400;
textboxMessage.Width = 450;
textboxMessage.Rows = 10;
textboxError.Width = 400;
textboxError.Rows = 5;
textboxError.ForeColor = System.Drawing.Color.Red;
textboxError.Visible = false;
textboxError.Text = "";
if (!Page.IsPostBack)
{
textboxRecipient.Text = "+441234567";
textboxMessage.Text = "Test message!";
}
}
protected void buttonSendOnClick(object sender, EventArgs e)
{
//are required fields filled in:
if (textboxRecipient.Text == "")
{
textboxError.Text += "Recipient(s) field must not be empty!\n";
textboxError.Visible = true;
return;
}
//we creating the necessary URL string:
string ozSURL = "http://127.0.0.1"; //where the SMS Gateway is running
string ozSPort = "9501"; //port number where the SMS Gateway is listening
string ozUser = HttpUtility.UrlEncode("admin"); //username for successful login
string ozPassw = HttpUtility.UrlEncode("abc123"); //user's password
string ozMessageType = "SMS:TEXT"; //type of message
string ozRecipients = HttpUtility.UrlEncode(textboxRecipient.Text); //who will get the message
string ozMessageData = HttpUtility.UrlEncode(textboxMessage.Text); //body of message
string createdURL = ozSURL + ":" + ozSPort + "/httpapi" +
"?action=sendMessage" +
"&username=" + ozUser +
"&password=" + ozPassw +
"&messageType=" + ozMessageType +
"&recipient=" + ozRecipients +
"&messageData=" + ozMessageData;
try
{
//Create the request and send data to the SMS Gateway Server by HTTP connection
HttpWebRequest myReq = (HttpWebRequest)WebRequest.Create(createdURL);
//Get response from the SMS Gateway Server and read the answer
HttpWebResponse myResp = (HttpWebResponse)myReq.GetResponse();
System.IO.StreamReader respStreamReader = new System.IO.StreamReader(myResp.GetResponseStream());
string responseString = respStreamReader.ReadToEnd();
respStreamReader.Close();
myResp.Close();
//inform the user
textboxError.Text = responseString;
textboxError.Visible = true;
}
catch (Exception)
{
//if sending request or getting response is not successful the SMS Gateway Server may do not run
textboxError.Text = "The SMS Gateway Server is not running!";
textboxError.Visible = true;
}
}
}