private void DecodeMessageText(bool udhi, bool ucs2, int len, byte[] buff)
{
if (udhi)
{
int headLength = buff[0];
int skipChars = (headLength + 1);
// multipart
if (ucs2)
{
this.MessageText = System.Text.Encoding.BigEndianUnicode.GetString(buff, skipChars, buff.Length - skipChars);
}
else
{
skipChars = (int)Math.Ceiling(skipChars * 8.0 / 7);
this.MessageText = StreamUtilsPdu.Decode7bit(buff, len).Substring(skipChars);
}
if (headLength > 4 && buff[2] == 3 && buff[4] > 1)
{
this.MultipartInfo = new MultipartData {
MessageNumber = buff[3], TotalParts = buff[4], PartNumber = buff[5]
};
}
else if (headLength > 5 && buff[2] == 4)
{
this.MultipartInfo = new MultipartData {
MessageNumber = buff[4], TotalParts = buff[5], PartNumber = buff[6]
};
}
if (this.MultipartInfo != null)
{
this.MessageText = this.MultipartInfo.AddMultipartPrefix(this.MessageText);
}
}
else
{
if (ucs2)
{
this.MessageText = System.Text.Encoding.BigEndianUnicode.GetString(buff);
}
else
{
this.MessageText = StreamUtilsPdu.Decode7bit(buff, len);
}
}
}
public static Message ReadBinMessage(Stream s)
{
Message m = new Message();
s.Seek(4, SeekOrigin.Current);
int MsgHeaderFlags = s.ReadByte();
bool udhi = ((MsgHeaderFlags & 0x40) > 0);
int MsgType = MsgHeaderFlags & 0x0F;
s.ReadByte();
bool ucs2 = (s.ReadByte() == 8);
s.ReadByte();
int test, len, len2;
byte[] buff;
switch (MsgType)
{
case 0x00:
case 0x04: // incoming message
m.Direction = MessageDirection.Incoming;
s.ReadByte();
m.MessageTime = StreamUtilsPdu.ReadDateTime(s);
s.Seek(8, SeekOrigin.Current);
m.PhoneNumber = StreamUtilsPdu.ReadPhoneNumber(s);
s.Seek(5, SeekOrigin.Current);
m.SmscNumber = StreamUtilsPdu.ReadPhoneNumber(s, true);
s.Seek(4, SeekOrigin.Current);
len = StreamUtils.ReadUInt16(s);
len2 = StreamUtils.ReadUInt16(s);
s.Seek(2, SeekOrigin.Current);
buff = StreamUtils.ReadBuff(s, len2);
m.DecodeMessageText(udhi, ucs2, len, buff);
StreamUtils.Counter += len2;
break;
case 0x01: // outgoing message
m.Direction = MessageDirection.Outgoing;
s.Seek(2, SeekOrigin.Current);
test = s.ReadByte();
if (test == 1)
{
m.MessageTime = StreamUtils.ReadNokiaDateTime2(s).ToLocalTime();
s.Seek(7, SeekOrigin.Current);
}
test = s.ReadByte();
if (test == 1)
{
s.Seek(4, SeekOrigin.Current);
m.PhoneNumber = StreamUtilsPdu.ReadPhoneNumber(s);
s.Seek(5, SeekOrigin.Current);
m.SmscNumber = StreamUtilsPdu.ReadPhoneNumber(s, true);
}
else
{
s.Seek(9, SeekOrigin.Current);
}
s.Seek(4, SeekOrigin.Current);
len = StreamUtils.ReadUInt16(s);
len2 = StreamUtils.ReadUInt16(s);
s.Seek(2, SeekOrigin.Current);
buff = StreamUtils.ReadBuff(s, len2);
m.DecodeMessageText(udhi, ucs2, len, buff);
StreamUtils.Counter += len2;
break;
case 0x06: // delivery report message
m.Direction = MessageDirection.Incoming;
s.ReadByte();
m.MessageTime = StreamUtilsPdu.ReadDateTime(s);
s.Seek(15, SeekOrigin.Current);
m.PhoneNumber = StreamUtilsPdu.ReadPhoneNumber(s);
s.Seek(5, SeekOrigin.Current);
m.SmscNumber = StreamUtilsPdu.ReadPhoneNumber(s, true);
s.Seek(10, SeekOrigin.Current);
m.MessageText = "Delivery report message";
m.IsDelivery = true;
break;
default:
throw new ApplicationException("Unknown message type");
}
return(m);
}
public static Message ReadPredefBinMessage(string currentFileName, Stream s, string filename)
{
Message m = new Message();
s.Seek(0xB0, SeekOrigin.Begin);
int MsgHeaderFlags = s.ReadByte();
bool udhi = (MsgHeaderFlags & 0x40) > 0;
int MsgType = MsgHeaderFlags & 0x0F;
bool ucs2;
switch (MsgType)
{
case 0:
case 4:
m.Direction = MessageDirection.Incoming;
m.PhoneNumber = StreamUtilsPdu.ReadPhoneNumber(s);
s.ReadByte(); // 00 expected
ucs2 = (s.ReadByte() == 8);
try
{
m.MessageTime = StreamUtilsPdu.ReadDateTime(s);
}
catch { }
s.ReadByte();
m.DecodeMessageBody(udhi, ucs2, s);
break;
case 1:
m.Direction = MessageDirection.Outgoing;
s.ReadByte();
m.PhoneNumber = StreamUtilsPdu.ReadPhoneNumber(s);
if (m.PhoneNumber == "+35856789123456789123")
{
m.PhoneNumber = "";
}
s.ReadByte();
ucs2 = (s.ReadByte() == 8);
s.ReadByte();
m.DecodeMessageBody(udhi, ucs2, s);
if (string.IsNullOrEmpty(m.PhoneNumber))
{
s.Seek(0x5F, SeekOrigin.Begin);
StreamUtils.SeekTo(UnicodeZero, s);
if (s.Position > 0x61)
{
int len = (int)(s.Position - 0x5F) / 2;
s.Seek(0x5F, SeekOrigin.Begin);
m.PhoneNumber = StreamUtils.ReadString(s, len);
}
}
break;
case 0x0C:
s.Seek(-1, SeekOrigin.Current);
try
{
m.Mms = new Mms(currentFileName, s, s.Length);
m.MessageTime = m.Mms.Time;
m.MessageText = m.Mms.ParseLog;
}
catch { }
break;
default:
throw new ApplicationException("Unknown message type");
}
if (m.messageTime == DateTime.MinValue && filename.Length > 16)
{
try
{
string tmp = filename.Substring(8, 8);
Int64 sec = Int64.Parse(tmp, System.Globalization.NumberStyles.HexNumber);
m.MessageTime = new DateTime(1980, 1, 1).AddSeconds(sec);
if (RecalculateUtcToLocal)
{
m.MessageTime = m.MessageTime.ToLocalTime();
}
}
catch { }
}
return(m);
}
