/// <summary> Extracts a specified portion of the smpp buffer to a string </summary>
/// <param name="propertyName"></param>
/// <param name="length"></param>
/// <param name="bCodepage"></param>
/// <param name="offset"></param>
/// <returns> PduPropertyDetail </returns>
public PduPropertyDetail ExtractEncodedString(string propertyName, int length, byte bCodepage, ref int offset)
{
PduPropertyDetail detail = new PduPropertyDetail(offset, PduDataTypes.EncodedString, propertyName);
try
{
if (length > 0)
{
detail.ValueString = null;
if (bCodepage == (byte) DataCodings.Default)
{
bCodepage = (byte) DefaultEncoding;
}
detail.DataBlock = ListBuffer.GetRange(offset, length).ToArray();
switch (bCodepage)
{
case (byte) DataCodings.UCS2:
case (byte) DataCodings.UnicodeFlashSMS:
detail.ValueString = System.Text.Encoding.BigEndianUnicode.GetString(detail.DataBlock);
break;
case (byte) DataCodings.OctetUnspecified:
case (byte) DataCodings.Octets:
detail.ValueString = System.Text.Encoding.UTF8.GetString(detail.DataBlock);
break;
case (byte) DataCodings.Latin1:
case (byte) DataCodings.Latin1Escape:
detail.ValueString = SmppBuffer.ISO88591.GetString(detail.DataBlock);
break;
case (byte) DataCodings.ASCII:
detail.ValueString = IA5GSMToString(detail.DataBlock, 0, length);
break;
}
offset += length;
}
else
{
detail.DataBlock = new byte[1];
detail.DataBlock[0] = ListBuffer[offset];
detail.ValueString = null;
}
}
catch
{
detail.DataBlock = new byte[1];
detail.DataBlock[0] = ListBuffer[offset];
detail.ValueString = null;
offset += 1;
}
return detail;
}
/// <summary> Extracts a specified portion of the smpp buffer to a byte array </summary>
/// <param name="propertyName"></param>
/// <param name="offset"></param>
/// <param name="length"></param>
/// <returns> PduPropertyDetail </returns>
public PduPropertyDetail ExtractByteArray(string propertyName, ref int offset, ushort length)
{
PduPropertyDetail detail = new PduPropertyDetail(offset, PduDataTypes.ByteArray, propertyName);
detail.DataBlock = ListBuffer.GetRange(offset, length).ToArray();
offset = offset + length;
return detail;
}
/// <summary> Extracts a specified portion of the smpp buffer to a string </summary>
/// <param name="propertyName"></param>
/// <param name="offset"></param>
/// <returns> PduPropertyDetail </returns>
public PduPropertyDetail ExtractCString(string propertyName, ref int offset)
{
PduPropertyDetail detail = new PduPropertyDetail(offset, PduDataTypes.CString, propertyName);
int endofStringPosition = offset;
try
{
endofStringPosition = ListBuffer.IndexOf(0, offset);
if (endofStringPosition > offset)
{
detail.DataBlock = ListBuffer.GetRange(offset, endofStringPosition - offset).ToArray();
detail.ValueString = System.Text.ASCIIEncoding.ASCII.GetString(detail.DataBlock);
offset = endofStringPosition + 1;
}
else
{
detail.DataBlock = new byte[1];
detail.DataBlock[0] = ListBuffer[offset];
detail.ValueString = null;
offset += 1;
}
}
catch (System.Exception)
{
detail.DataBlock = new byte[1];
detail.DataBlock[0] = ListBuffer[offset];
detail.ValueString = null;
offset = endofStringPosition + 1;
}
return detail;
}
/// <summary> Extracts a specified portion of the smpp buffer to a byte </summary>
/// <param name="propertyName"></param>
/// <param name="offset"></param>
/// <returns> PduPropertyDetail </returns>
public PduPropertyDetail ExtractByte(string propertyName, ref int offset)
{
PduPropertyDetail detail = new PduPropertyDetail(offset, PduDataTypes.Byte, propertyName);
detail.DataBlock = new byte[1];
detail.DataBlock[0] = ListBuffer[offset];
offset += 1;
detail.ValueByte = detail.DataBlock[0];
return detail;
}
/// <summary> Called to extract the user data portion of the smpp buffer </summary>
/// <param name="details"></param>
/// <param name="udhi"></param>
/// <param name="offset"></param>
public void ExtractUserData(List<PduPropertyDetail> details, bool udhi, int offset)
{
PduPropertyDetail detail = null;
if (udhi)
{
detail = ExtractByte("UserData_UdhLength", ref offset);
details.Add(detail);
byte udhLength = detail.ValueByte;
int curOffset = offset;
int countedUdhLegth = 0;
while (curOffset + udhLength > offset)
{
detail = ExtractByte("UserData_UdhiType", ref offset);
details.Add(detail);
byte udhiType = detail.ValueByte;
detail = ExtractByte("UserData_UdhiLength", ref offset);
details.Add(detail);
byte udhiLength = detail.ValueByte;
countedUdhLegth += udhiLength + 2;
if (countedUdhLegth > udhLength)
{
// Wrong UDH found
break;
}
details.Add(ExtractByteArray("UserData_Headers", ref offset, udhiLength));
}
}
if (Length - offset > 0)
{
detail = new PduPropertyDetail(offset, PduDataTypes.ByteArray, "UserData_Payload");
detail.DataBlock = ListBuffer.GetRange(offset, Length - offset).ToArray();
details.Add(detail);
}
}
/// <summary> Extracts a specified portion of the smpp buffer to an unsigned short </summary>
/// <param name="propertyName"></param>
/// <param name="offset"></param>
/// <returns> PduPropertyDetail </returns>
public PduPropertyDetail ExtractShort(string propertyName, ref int offset)
{
PduPropertyDetail detail = new PduPropertyDetail(offset, PduDataTypes.UShort, propertyName);
detail.DataBlock = ListBuffer.GetRange(offset, 2).ToArray();
byte[] value = detail.DataBlock;
if (System.BitConverter.IsLittleEndian)
{
value[1] = ListBuffer[0 + offset];
value[0] = ListBuffer[1 + offset];
}
else
{
value[1] = ListBuffer[0 + offset];
value[0] = ListBuffer[1 + offset];
}
offset += 2;
detail.ValueUShort = System.BitConverter.ToUInt16(value, 0);
return detail;
}
/// <summary> Called to return a list of property details from the PDU </summary>
/// <returns> List PduPropertyDetail </returns>
public List <PduPropertyDetail> Details()
{
List <PduPropertyDetail> details = null;
try
{
int offset = 0;
details = PduData.ExtractHeaderDetails(ref offset);
details.Add(PduData.ExtractCString("ServiceType", ref offset));
details.Add(PduData.ExtractByte("SourceTon", ref offset));
details.Add(PduData.ExtractByte("SourceNpi", ref offset));
details.Add(PduData.ExtractCString("SourceAddr", ref offset));
details.Add(PduData.ExtractByte("DestTon", ref offset));
details.Add(PduData.ExtractByte("DestNpi", ref offset));
details.Add(PduData.ExtractCString("DestAddr", ref offset));
PduPropertyDetail esmClass = PduData.ExtractByte("EsmClass", ref offset);
details.Add(esmClass);
details.Add(PduData.ExtractByte("EsmClass", ref offset));
details.Add(PduData.ExtractByte("RegisteredDelivery", ref offset));
details.Add(PduData.ExtractByte("DataCoding", ref offset));
while (offset < PduData.Length)
{
PduData.ExtractTLV(details, ref offset);
PduPropertyDetail tlvTag = details[details.Count - 3];
PduPropertyDetail tlvLength = details[details.Count - 2];
PduPropertyDetail tlvValue = details[details.Count - 1];
switch (tlvTag.ValueUShort)
{
case (ushort)OptionalTags.MessagePayload:
GSMSpecificFeatures messageFeature = (GSMSpecificFeatures)(esmClass.ValueByte & 0xc0);
SmppBuffer userData = new SmppBuffer(DefaultEncoding, tlvValue.DataBlock);
userData.ExtractUserData(details, messageFeature == GSMSpecificFeatures.UDHI, offset);
break;
case (ushort)OptionalTags.SarMsgRefNum:
tlvValue.PduDataType = PduDataTypes.UShort;
tlvValue.Name = "SARReferenceNumber";
tlvValue.ValueUShort = SmppBuffer.BytesToShort(tlvValue.DataBlock, 0);
break;
case (ushort)OptionalTags.SarTotalSegments:
tlvValue.PduDataType = PduDataTypes.Byte;
tlvValue.Name = "SARTotalSegments";
tlvValue.ValueByte = tlvValue.DataBlock[0];
break;
case (ushort)OptionalTags.SarSegmentSeqnum:
tlvValue.PduDataType = PduDataTypes.Byte;
tlvValue.Name = "SARSequenceNumber";
tlvValue.ValueByte = tlvValue.DataBlock[0];
break;
}
}
}
catch
{
}
return(details);
}
/// <summary> Called to return a list of property details from the PDU </summary>
/// <returns> List PduPropertyDetail </returns>
public List <PduPropertyDetail> Details()
{
List <PduPropertyDetail> details = null;
try
{
int offset = 0;
details = PduData.ExtractHeaderDetails(ref offset);
details.Add(PduData.ExtractCString("ServiceType", ref offset));
details.Add(PduData.ExtractByte("SourceTon", ref offset));
details.Add(PduData.ExtractByte("SourceNpi", ref offset));
details.Add(PduData.ExtractCString("SourceAddr", ref offset));
details.Add(PduData.ExtractByte("DestTon", ref offset));
details.Add(PduData.ExtractByte("DestNpi", ref offset));
details.Add(PduData.ExtractCString("DestAddr", ref offset));
PduPropertyDetail esmClass = PduData.ExtractByte("EsmClass", ref offset);
details.Add(esmClass);
details.Add(PduData.ExtractByte("ProtocolId", ref offset));
details.Add(PduData.ExtractByte("PriorityFlag", ref offset));
details.Add(PduData.ExtractCString("ScheduleDeliveryTime", ref offset));
details.Add(PduData.ExtractCString("ValidityPeriod", ref offset));
details.Add(PduData.ExtractByte("RegisteredDelivery", ref offset));
details.Add(PduData.ExtractByte("ReplaceIfPresent", ref offset));
PduPropertyDetail dataCoding = PduData.ExtractByte("DataCoding", ref offset);
details.Add(dataCoding);
details.Add(PduData.ExtractByte("DefaultMsgId", ref offset));
PduPropertyDetail messageLength = PduData.ExtractByte("ShortMessageLength", ref offset);
details.Add(messageLength);
if (messageLength.ValueByte > 0)
{
PduPropertyDetail userDataProperty = PduData.ExtractByteArray("ShortMessage", ref offset, messageLength.ValueByte);
userDataProperty.PduDataType = PduDataTypes.EncodedString;
UserData userData = UserData.Create(new SmppBuffer(DefaultEncoding, userDataProperty.DataBlock), false);
userDataProperty.ValueString = userData.ShortMessageText(DefaultEncoding, (DataCodings)dataCoding.ValueByte);
details.Add(userDataProperty);
}
while (offset < PduData.Length)
{
PduData.ExtractTLV(details, ref offset);
PduPropertyDetail tlvTag = details[details.Count - 3];
PduPropertyDetail tlvLength = details[details.Count - 2];
PduPropertyDetail tlvValue = details[details.Count - 1];
switch (tlvTag.ValueUShort)
{
case (ushort)OptionalTags.MessagePayload:
GSMSpecificFeatures messageFeature = (GSMSpecificFeatures)(esmClass.ValueByte & 0xc0);
SmppBuffer userData = new SmppBuffer(DefaultEncoding, tlvValue.DataBlock);
userData.ExtractUserData(details, messageFeature == GSMSpecificFeatures.UDHI, offset);
break;
case (ushort)OptionalTags.SarMsgRefNum:
tlvValue.PduDataType = PduDataTypes.UShort;
tlvValue.Name = "SARReferenceNumber";
tlvValue.ValueUShort = SmppBuffer.BytesToShort(tlvValue.DataBlock, 0);
break;
case (ushort)OptionalTags.SarTotalSegments:
tlvValue.PduDataType = PduDataTypes.Byte;
tlvValue.Name = "SARTotalSegments";
tlvValue.ValueByte = tlvValue.DataBlock[0];
break;
case (ushort)OptionalTags.SarSegmentSeqnum:
tlvValue.PduDataType = PduDataTypes.Byte;
tlvValue.Name = "SARSequenceNumber";
tlvValue.ValueByte = tlvValue.DataBlock[0];
break;
}
}
}
catch
{
}
return(details);
}