using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.IO.Ports;
using System.Threading;
using System.Text.RegularExpressions;
using System.Windows.Forms;
namespace SMSapplication
{
public class clsSMS
{
#region Open and Close Ports
public SerialPort OpenPort(string p_strPortName, int p_uBaudRate, int p_uDataBits, int p_uReadTimeout, int p_uWriteTimeout)
{
receiveNow = new AutoResetEvent(false);
SerialPort port = new SerialPort();
try
{
port.PortName = p_strPortName;
port.BaudRate = p_uBaudRate;
port.DataBits = p_uDataBits;
port.StopBits = StopBits.One;
port.Parity = Parity.None;
port.ReadTimeout = p_uReadTimeout;
port.WriteTimeout = p_uWriteTimeout;
port.Encoding = Encoding.GetEncoding("iso-8859-1");
port.DataReceived += new SerialDataReceivedEventHandler(port_DataReceived);
port.Open();
port.DtrEnable = true;
port.RtsEnable = true;
}
catch (Exception ex)
{
throw ex;
}
return port;
}
public void ClosePort(SerialPort port)
{
try
{
port.Close();
port.DataReceived -= new SerialDataReceivedEventHandler(port_DataReceived);
port = null;
}
catch (Exception ex)
{
throw ex;
}
}
#endregion
public string ExecCommand(SerialPort port,string command, int responseTimeout, string errorMessage)
{
try
{
port.DiscardOutBuffer();
port.DiscardInBuffer();
receiveNow.Reset();
port.Write(command + "\r");
string input = ReadResponse(port, responseTimeout);
if ((input.Length == 0) || ((!input.EndsWith("\r\n> ")) && (!input.EndsWith("\r\nOK\r\n"))))
throw new ApplicationException("No success message was received.");
return input;
}
catch (Exception ex)
{
throw ex;
}
}
public void port_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
try
{
if (e.EventType == SerialData.Chars)
{
receiveNow.Set();
}
}
catch (Exception ex)
{
throw ex;
}
}
public string ReadResponse(SerialPort port,int timeout)
{
string buffer = string.Empty;
try
{
do
{
if (receiveNow.WaitOne(timeout, false))
{
string t = port.ReadExisting();
buffer += t;
}
else
{
if (buffer.Length > 0)
throw new ApplicationException("Response received is incomplete.");
else
throw new ApplicationException("No data received from phone.");
}
}
while (!buffer.EndsWith("\r\nOK\r\n") && !buffer.EndsWith("\r\n> ") && !buffer.EndsWith("\r\nERROR\r\n"));
}
catch (Exception ex)
{
throw ex;
}
return buffer;
}
#region Count SMS
public int CountSMSmessages(SerialPort port)
{
int CountTotalMessages = 0;
try
{
#region Execute Command
string recievedData = ExecCommand(port, "AT", 300, "No phone connected at ");
recievedData = ExecCommand(port, "AT+CMGF=1", 300, "Failed to set message format.");
String command = "AT+CPMS=\"MT\"";
recievedData = ExecCommand(port, command, 1000, "Failed to count SMS message");
int uReceivedDataLength = recievedData.Length;
#endregion
#region If command is executed successfully
if ((recievedData.Length >= 45) && (recievedData.StartsWith("AT+CPMS")))
{
#region Parsing SMS
string[] strSplit = recievedData.Split(',');
MessageBox.Show(recievedData);
string strMessageStorageArea1 = strSplit[0];
string strMessageExist1 = strSplit[1];
#endregion
#region Count Total Number of SMS In SIM
CountTotalMessages = Convert.ToInt32(strMessageExist1);
#endregion
}
#endregion
#region If command is not executed successfully
else if (recievedData.Contains("ERROR"))
{
#region Error in Counting total number of SMS
string recievedError = recievedData;
recievedError = recievedError.Trim();
recievedData = "Following error occured while counting the message" + recievedError;
#endregion
}
#endregion
return CountTotalMessages;
}
catch (Exception ex)
{
throw ex;
}
}
#endregion
#region Read SMS
public AutoResetEvent receiveNow;
public ShortMessageCollection ReadSMS(SerialPort port, string p_strCommand)
{
ShortMessageCollection messages = null;
try
{
#region Execute Command
ExecCommand(port,"AT", 300, "No phone connected");
ExecCommand(port,"AT+CMGF=1", 300, "Failed to set message format.");
ExecCommand(port,"AT+CSCS=\"PCCP437\"", 300, "Failed to set character set.");
ExecCommand(port,"AT+CPMS=\"MT\"", 300, "Failed to select message storage.");
string input = ExecCommand(port, p_strCommand, 5000, "Failed to read the messages.");
#endregion
#region Parse messages
messages = ParseMessages(input);
#endregion
}
catch (Exception ex)
{
throw ex;
}
if (messages != null)
return messages;
else
return null;
}
public ShortMessageCollection ParseMessages(string input)
{
ShortMessageCollection messages = new ShortMessageCollection();
try
{
Regex r = new Regex(@"\+CMGL: (\d+),""(.+)"",""(.+)"",(.*),""(.+)""\r\n(.+)\r\n");
Match m = r.Match(input);
while (m.Success)
{
ShortMessage msg = new ShortMessage();
msg.Index = m.Groups[1].Value;
msg.Status = m.Groups[2].Value;
msg.Sender = m.Groups[3].Value;
msg.Alphabet = m.Groups[4].Value;
msg.Sent = m.Groups[5].Value;
msg.Message = m.Groups[6].Value;
messages.Add(msg);
m = m.NextMatch();
}
}
catch (Exception ex)
{
throw ex;
}
return messages;
}
#endregion
#region Send SMS
static AutoResetEvent readNow = new AutoResetEvent(false);
public bool sendMsg(SerialPort port, string PhoneNo, string Message)
{
bool isSend = false;
try
{
string recievedData = ExecCommand(port,"AT", 300, "No phone connected");
recievedData = ExecCommand(port,"AT+CMGF=1", 300, "Failed to set message format.");
String command = "AT+CMGS=\"" + PhoneNo + "\"";
recievedData = ExecCommand(port,command, 300, "Failed to accept phoneNo");
command = Message + char.ConvertFromUtf32(26) + "\r";
recievedData = ExecCommand(port,command, 3000, "Failed to send message");
if (recievedData.EndsWith("\r\nOK\r\n"))
{
isSend = true;
}
else if (recievedData.Contains("ERROR"))
{
isSend = false;
}
return isSend;
}
catch (Exception ex)
{
throw ex;
}
}
static void DataReceived(object sender, SerialDataReceivedEventArgs e)
{
try
{
if (e.EventType == SerialData.Chars)
readNow.Set();
}
catch (Exception ex)
{
throw ex;
}
}
#endregion
#region Delete SMS
public bool DeleteMsg(SerialPort port , string p_strCommand)
{
bool isDeleted = false;
try
{
#region Execute Command
string recievedData = ExecCommand(port,"AT", 300, "No phone connected");
recievedData = ExecCommand(port,"AT+CMGF=1", 300, "Failed to set message format.");
String command = p_strCommand;
recievedData = ExecCommand(port,command, 300, "Failed to delete message");
#endregion
if (recievedData.EndsWith("\r\nOK\r\n"))
{
isDeleted = true;
}
if (recievedData.Contains("ERROR"))
{
isDeleted = false;
}
return isDeleted;
}
catch (Exception ex)
{
throw ex;
}
}
#endregion
}
}