internal static string GetFriendlyMessage(string rawmessage)
{
string friendlyMessage = string.Empty;
string op = "0";
string to;
string from;
string direction = "O";
try
{
string[] m = rawmessage.Split('/');
op = m[3];
to = m[4];
from = m[5];
direction = m[2];
string hexmessage = m[24];
string message = null;
string XSER = m[34];
string MT4 = m[22];
if (XSER.Contains("020108") || XSER.Contains("020109") || XSER.Contains("02010A") || XSER.Contains("02010B") || XSER.Contains("020118") || XSER.Contains("020119") || XSER.Contains("02011A") || XSER.Contains("02011B") || XSER.Contains("020128") || XSER.Contains("020129") || XSER.Contains("02012A") || XSER.Contains("02012B") || XSER.Contains("020138") || XSER.Contains("020139") || XSER.Contains("02013A") || XSER.Contains("02013B"))
{
//Unicode
message = System.Text.UnicodeEncoding.BigEndianUnicode.GetString(EmiProtocol.Decode(hexmessage.ToCharArray()));
}
else
{
//GSM8BIT / GSM7BIT
message = EmiProtocol.GSM8HexToString(hexmessage);
}
int shortcode;
if (op == "51")
{
if (int.TryParse(from, out shortcode))
{
if (m[5] != string.Empty)
{
friendlyMessage = string.Format("SMS: {0} -> {1} : {2} ({3} chars)", from, to, message, message.Length);
}
}
else
{
from = EmiProtocol.GSM7HexToString(from.Substring(2)).Substring(0, int.Parse(from.Substring(0, 2), NumberStyles.HexNumber) * 8 / 14);
if (m[5] != string.Empty)
{
friendlyMessage = string.Format("SMS: {0} -> {1} : {2} ({3} chars)", from, to, message, message.Length);
}
}
}
else
{
if (int.TryParse(to, out shortcode))
{
if (m[5] != string.Empty)
{
friendlyMessage = string.Format("SMS: {0} -> {1} : {2} ({3} chars)", from, to, message, message.Length);
}
}
else
{
to = EmiProtocol.GSM7HexToString(to.Substring(2)).Substring(0, int.Parse(to.Substring(0, 2), NumberStyles.HexNumber) * 8 / 14);
if (m[5] != string.Empty)
{
friendlyMessage = string.Format("SMS: {0} -> {1} : {2} ({3} chars)", from, to, message, message.Length);
}
}
}
}
catch
{
if (rawmessage[0] == '\x02')
{
friendlyMessage = string.Empty;
}
else
{
friendlyMessage = "SMS: " + rawmessage;
}
if (op == "60" && direction == "O")
{
friendlyMessage = "SMS: Open Session Request";
}
else if (op == "60" && direction == "R")
{
friendlyMessage = "SMS: Open Session Acknowledgment";
}
else if (op == "51" && direction == "R")
{
friendlyMessage = "SMS: MT Acknowledgment";
}
else if (op == "51" && direction == "O")
{
friendlyMessage = "SMS: Empty MT (Ping)";
}
else if (op == "52")
{
friendlyMessage = "SMS: MO Acknowledgment";
}
else if (op == "53")
{
friendlyMessage = "SMS: SR Acknowledgment";
}
}
return(friendlyMessage);
}
private void AnalyseMT(string MT, int bit, string NMsg, string AMsg, string TMsg, string NB)
{
string decodedMsg = string.Empty;
switch (MT)
{
case "2":
viewAnalyse.Items.Add(new Variable("NMsg", NMsg));
decodedMsg = NMsg;
break;
case "3":
viewAnalyse.Items.Add(new Variable("AMsg", AMsg));
decodedMsg = AMsg;
break;
case "4":
viewAnalyse.Items.Add(new Variable("NB - No. of bits in Transparent Data (TD) message", NB));
viewAnalyse.Items.Add(new Variable("TMsg", TMsg));
decodedMsg = TMsg;
break;
}
if (bit == 16)
{
viewAnalyse.Items.Add(new Variable(" (Decoded 16 bit Message)", System.Text.UnicodeEncoding.BigEndianUnicode.GetString(EmiProtocol.Decode(decodedMsg.ToCharArray()))));
}
else if (bit == 7)
{
viewAnalyse.Items.Add(new Variable(" (Decoded compressed 7 bit Message)", EmiProtocol.GSM7HexToString(decodedMsg)));
}
else
{
viewAnalyse.Items.Add(new Variable(" (Decoded 8 bit (uncompressed 7 bit) Message)", EmiProtocol.GSM8HexToString(decodedMsg)));
}
}