/// <summary>
/// Decodes the timestamp out of a PDU stream.
/// </summary>
/// <param name="pdu">The string to get the timestamp from.</param>
/// <param name="index">The current position in the string</param>
public SmsTimestamp(string pdu, ref int index)
{
string bytesString = BcdWorker.GetBytesString(pdu, index, 7);
index = index + 7;
string str = BcdWorker.DecodeSemiOctets(bytesString);
this.year = byte.Parse(str.Substring(0, 2));
this.month = byte.Parse(str.Substring(2, 2));
this.day = byte.Parse(str.Substring(4, 2));
this.hour = byte.Parse(str.Substring(6, 2));
this.minute = byte.Parse(str.Substring(8, 2));
this.second = byte.Parse(str.Substring(10, 2));
string str1 = str.Substring(12, 2);
byte num = Calc.HexToInt(str1)[0];
if ((num & 128) <= 0)
{
this.timeZoneOffset = int.Parse(str1);
return;
}
else
{
num = (byte)(num & 127);
this.timeZoneOffset = -num;
return;
}
}
/// <summary>
/// Decodes an SMSC address out of a PDU string.
/// </summary>
/// <param name="pdu">The PDU string to use.</param>
/// <param name="index">The index where to start in the string.</param>
/// <param name="address">The address (phone number) read.</param>
/// <param name="addressType">The address type of the read address.</param>
public static void DecodeSmscAddress(string pdu, ref int index, out string address, out byte addressType)
{
int num = index;
int num1 = num;
index = num + 1;
byte num2 = BcdWorker.GetByte(pdu, num1);
if (num2 <= 0)
{
addressType = 0;
address = string.Empty;
return;
}
else
{
int num3 = index;
int num4 = num3;
index = num3 + 1;
byte num5 = BcdWorker.GetByte(pdu, num4);
int num6 = num2 - 1;
string bytesString = BcdWorker.GetBytesString(pdu, index, num6);
index = index + num6;
string str = BcdWorker.DecodeSemiOctets(bytesString);
if (str.EndsWith("F") || str.EndsWith("f"))
{
str = str.Substring(0, str.Length - 1);
}
addressType = num5;
address = str;
return;
}
}
/// <summary>
/// Decodes an address out of a PDU string.
/// </summary>
/// <param name="pdu">The PDU string to use.</param>
/// <param name="index">The index where to start in the string.</param>
/// <param name="address">The address (phone number) read.</param>
/// <param name="addressType">The address type of the read address.</param>
public static void DecodeGeneralAddress(string pdu, ref int index, out string address, out byte addressType)
{
int num;
int num1 = index;
int num2 = num1;
index = num1 + 1;
byte num3 = BcdWorker.GetByte(pdu, num2);
int num4 = index;
int num5 = num4;
index = num4 + 1;
addressType = BcdWorker.GetByte(pdu, num5);
if (num3 <= 0)
{
address = string.Empty;
return;
}
else
{
bool flag = false;
if (num3 % 2 != 0)
{
num = num3 + 1;
}
else
{
num = (int)num3;
}
int length = num / 2;
if (index * 2 + length * 2 > pdu.Length - length * 2)
{
length = (pdu.Length - index * 2) / 2;
flag = true;
}
AddressType addressType1 = new AddressType(addressType);
if (addressType1.Ton != 5)
{
string bytesString = BcdWorker.GetBytesString(pdu, index, length);
index = index + length;
if (flag)
{
address = BcdWorker.DecodeSemiOctets(bytesString).Substring(0, length * 2);
return;
}
else
{
address = BcdWorker.DecodeSemiOctets(bytesString).Substring(0, num3);
return;
}
}
else
{
byte[] bytes = BcdWorker.GetBytes(pdu, index, length);
index = index + length;
address = PduParts.Decode7BitText(bytes);
return;
}
}
}
protected static void DecodeGeneralAddress(string pdu, ref int index, out string address, out byte addressType)
{
byte @byte = BcdWorker.GetByte(pdu, index++);
addressType = BcdWorker.GetByte(pdu, index++);
if (@byte > 0)
{
bool flag = false;
int length = (((@byte % 2) != 0) ? (@byte + 1) : @byte) / 2;
if (((index * 2) + (length * 2)) > (pdu.Length - (index * 2)))
{
length = (pdu.Length - (index * 2)) / 2;
flag = true;
}
string data = BcdWorker.GetBytesString(pdu, index, length);
index += length;
if (!flag)
{
address = BcdWorker.DecodeSemiOctets(data).Substring(0, @byte);
}
else
{
address = BcdWorker.DecodeSemiOctets(data).Substring(0, length * 2);
}
}
else
{
address = string.Empty;
}
}
protected static void DecodeSmscAddress(string pdu, ref int index, out string address, out byte addressType)
{
byte @byte = BcdWorker.GetByte(pdu, index++);
if (@byte > 0)
{
byte num2 = BcdWorker.GetByte(pdu, index++);
int length = @byte - 1;
string data = BcdWorker.GetBytesString(pdu, index, length);
index += length;
string str2 = BcdWorker.DecodeSemiOctets(data);
if (str2.EndsWith("F") || str2.EndsWith("f"))
{
str2 = str2.Substring(0, str2.Length - 1);
}
addressType = num2;
address = str2;
}
else
{
addressType = 0;
address = string.Empty;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="T:GSMCommunication.PDUDecoder.SmsSubmitPdu" /> class
/// using the specified PDU string.
/// </summary>
/// <param name="pdu">The PDU string to convert.</param>
/// <param name="includesSmscData">Specifies if the string contains
/// SMSC data octets at the beginning.</param>
/// <param name="actualLength">Specifies the actual PDU length, that is the length in bytes without
/// the SMSC header. Set to -1 if unknown.</param>
/// <remarks>
/// <para>This constructor assumes that the string contains an <b>SMS-SUBMIT</b>
/// PDU data stream as specified
/// by GSM 07.05.</para>
/// <para>AbsuluteValidityPeriod and EnhancedValidityPeriod are not
/// supported and will generate a <see cref="T:System.NotSupportedException" />
/// when encountered.
/// </para>
/// </remarks>
/// <exception cref="T:System.NotSupportedException">The string contains a
/// validity and the validity period format is not relative validity.
/// </exception>
public SmsSubmitPdu(string pdu, bool includesSmscData, int actualLength)
{
byte num = 0;
byte[] numArray = null;
int num1;
if (pdu != string.Empty)
{
bool flag = actualLength >= 0;
int num2 = actualLength;
if (!flag || num2 > 0)
{
int num3 = 0;
if (!includesSmscData)
{
base.SmscAddress = string.Empty;
}
else
{
int num4 = num3;
num3 = num4 + 1;
byte num5 = BcdWorker.GetByte(pdu, num4);
if (num5 <= 0)
{
base.SmscAddress = string.Empty;
}
else
{
int num6 = num3;
num3 = num6 + 1;
byte num7 = BcdWorker.GetByte(pdu, num6);
int num8 = num5 - 1;
string bytesString = BcdWorker.GetBytesString(pdu, num3, num8);
num3 = num3 + num8;
string str = BcdWorker.DecodeSemiOctets(bytesString);
if (str.EndsWith("F") || str.EndsWith("f"))
{
str = str.Substring(0, str.Length - 1);
}
base.SetSmscAddress(str, num7);
}
}
int num9 = num3;
num3 = num9 + 1;
this.messageFlags = new SmsSubmitMessageFlags(BcdWorker.GetByte(pdu, num9));
if (flag)
{
num2--;
if (num2 <= 0)
{
base.ConstructLength = num3 * 2;
return;
}
}
int num10 = num3;
num3 = num10 + 1;
base.MessageReference = BcdWorker.GetByte(pdu, num10);
int num11 = num3;
num3 = num11 + 1;
byte num12 = BcdWorker.GetByte(pdu, num11);
int num13 = num3;
num3 = num13 + 1;
byte num14 = BcdWorker.GetByte(pdu, num13);
if (num12 <= 0)
{
this.DestinationAddress = string.Empty;
}
else
{
if (num12 % 2 != 0)
{
num1 = num12 + 1;
}
else
{
num1 = (int)num12;
}
int num15 = num1 / 2;
string bytesString1 = BcdWorker.GetBytesString(pdu, num3, num15);
num3 = num3 + num15;
string str1 = BcdWorker.DecodeSemiOctets(bytesString1).Substring(0, num12);
this.SetDestinationAddress(str1, num14);
}
int num16 = num3;
num3 = num16 + 1;
base.ProtocolID = BcdWorker.GetByte(pdu, num16);
int num17 = num3;
num3 = num17 + 1;
base.DataCodingScheme = BcdWorker.GetByte(pdu, num17);
ValidityPeriodFormat validityPeriodFormat = this.MessageFlags.ValidityPeriodFormat;
if (validityPeriodFormat == ValidityPeriodFormat.Unspecified)
{
this.ValidityPeriod = null;
}
else if (validityPeriodFormat == ValidityPeriodFormat.Relative)
{
int num18 = num3;
num3 = num18 + 1;
this.ValidityPeriod = new RelativeValidityPeriod(BcdWorker.GetByte(pdu, num18));
}
else if (validityPeriodFormat == ValidityPeriodFormat.Absolute)
{
throw new NotSupportedException("Absolute validity period format not supported.");
}
else if (validityPeriodFormat == ValidityPeriodFormat.Enhanced)
{
throw new NotSupportedException("Enhanced validity period format not supported.");
}
else
{
throw new NotSupportedException(string.Concat("Validity period format \"", (object)this.MessageFlags.ValidityPeriodFormat.ToString(), "\" not supported."));
}
PduParts.DecodeUserData(pdu, ref num3, base.DataCodingScheme, out num, out numArray);
base.SetUserData(numArray, num);
base.ConstructLength = num3 * 2;
return;
}
else
{
return;
}
}
else
{
throw new ArgumentException("pdu must not be an empty string.");
}
}