/// <summary>
/// Refer to <see cref="OdbcCommand.ExecuteScalar"/>
/// </summary>
/// <param name="sql">SQL request to run</param>
/// <returns>The scalar value if successfull, -1 in an error has occurred</returns>
public int SelectScalar(string sql)
{
int scalar = -1;
if (IsOpen && !string.IsNullOrEmpty(sql))
{
sql = TryToFixTrueFalseTesting(sql);
CLog.DEBUG($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", $"SQL: {sql}");
OdbcDataAdapter da = new OdbcDataAdapter();
da.SelectCommand = new OdbcCommand();
try
{
da.SelectCommand.Connection = Database;
da.SelectCommand.CommandText = sql;
scalar = (int)da.SelectCommand.ExecuteScalar();
}
catch (Exception ex)
{
CLog.AddException($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", ex);
}
finally
{
da.SelectCommand.Dispose();
}
}
return(scalar);
}
/// <summary>
/// Extract a PI from the given position in a buffer and returns the position of next PI (eventually) inside this buffer.
/// Throws exceptions if the PI to extract is badly formated (size doesn't match PI,...)
/// </summary>
/// <param name="buffer"></param>
/// <param name="start"></param>
/// <param name="offset"></param>
/// <returns>A PI object if found, null otherwise</returns>
public static CPI ExtractPI(byte[] buffer, int start, out int offset)
{
// offset is at least the starting position
offset = start;
CPI cpi = null;
// do we have anough space for a PGI+LGI
if (CPI.PI_HEADER_SIZE <= buffer.Length - offset)
{
// we do... try to create a PI from the buffer
try
{
cpi = new CPI(buffer[offset], buffer[offset + CPI.PI_PI_SIZE]);
offset += CPI.PI_HEADER_SIZE;
cpi.SetDataBytes(buffer, offset);
// arrived here the PI has been created
offset += cpi.PILen;
}
catch (Exception ex)
{
CLog.AddException(MethodBase.GetCurrentMethod().Name, ex);
cpi = null;
}
}
return(cpi);
}
/// <summary>
/// Selects a set of objects from the database and returns them inside a <see cref="DataSet"/> object to be extracted by the caller
/// </summary>
/// <param name="command">A complete <see cref="OdbcCommand"/> detailing a select request to launch</param>
/// <param name="dataSet">An <see cref="DataSet"/> object which can be used to fetch data from the result set</param>
/// <returns>True if successfull, false otherwise</returns>
public bool SelectRequest(OdbcCommand command, ref DataSet dataSet)
{
bool f = false;
if (IsOpen && null != command)
{
OdbcDataAdapter da = null;
try
{
command.Connection = Database;
da = new OdbcDataAdapter();
da.SelectCommand = command;
da.SelectCommand.Connection = Database;
dataSet = new DataSet();
da.Fill(dataSet);
f = true;
}
catch (Exception ex)
{
CLog.AddException($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", ex);
}
finally
{
if (null != da)
{
da.Dispose();
}
}
}
return(f);
}
/// <summary>
/// Search a specific TLC in a buffer
/// </summary>
/// <param name="tag">The TLV tag to find</param>
/// <param name="buffer">The buffer to loolk the TLV inside</param>
/// <returns>A CTLV object</returns>
public static CTLV SearchTLV(string tag, byte[] buffer)
{
CTLV tlv = null;
int offset = 0;
bool fFound = false, fOK = true;
do
{
int start = offset;
try
{
// extract the current PI
tlv = ExtractTLV(buffer, start, out offset);
}
catch (Exception ex)
{
CLog.AddException(MethodBase.GetCurrentMethod().Name, ex);
fOK = false;
tlv = null;
}
if (null != tlv)
{
// a PI was found, is it the one we're looking for ?
fFound = tlv.T == tag;
if (!fFound)
{
tlv = null;
}
}
}while (!fFound && buffer.Length > offset && fOK);
return(tlv);
}
/// <summary>
/// Open the adequate stream to the server.
/// </summary>
/// <param name="client">TCP client to use to open the stream</param>
/// <param name="settings">Settings to use when manipulating the stream</param>
public CStreamServerIO(TcpClient client, CStreamServerSettings settings) : base(client, settings.LengthBufferSize)
{
Port = settings.Port;
Settings = settings;
if (settings.UseSsl)
{
// SSL stream
sslStream = new SslStream(client.GetStream(), false, new RemoteCertificateValidationCallback(ValidateServerCertificate), null);
int tmo = client.ReceiveTimeout * 1000;
client.ReceiveTimeout = 5000;
try
{
// authenticate the server but don't require the client to authenticate.
sslStream.AuthenticateAsServer(settings.ServerCertificate);
}
catch (Exception ex)
{
CLog.AddException($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", ex);
sslStream = null;
throw;
}
finally
{
client.ReceiveTimeout = tmo;
}
}
else
{
// standard Stream
networkStream = client.GetStream();
}
}
/// <summary>
/// Open the adequate stream to the server.
/// </summary>
/// <param name="client">TCP client to use to open the stream</param>
/// <param name="settings">Settings to use when manipulating the stream</param>
public CStreamClientIO(TcpClient client, CStreamClientSettings settings) : base(client, settings.LengthBufferSize)
{
if (settings.IsValid)
{
Settings = settings;
// determine the kind of link to use
if (Settings.UseSsl)
{
sslStream = new SslStream(client.GetStream(), false, new RemoteCertificateValidationCallback(ValidateServerCertificate), null);
int tmo = client.ReceiveTimeout * 1000;
client.ReceiveTimeout = 5000;
try
{
// authenticate aginst the server
#if NET35
// check if TLS is supported
bool useTLS = false;
try
{
RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5");
object value = (null != key ? key.GetValue("SP") : null);
useTLS = (null != value && 1 <= (int)value);
}
catch (Exception ex) { }
CLog.Add($".NET 3.5 {(useTLS ? "using TLS 1.2" : "not using TLS")}", TLog.INFOR);
if (useTLS)
{
sslStream.AuthenticateAsClient(Settings.ServerName, null, (System.Security.Authentication.SslProtocols) 3072, false);
}
else
{
sslStream.AuthenticateAsClient(Settings.ServerName);
}
#else
sslStream.AuthenticateAsClient(Settings.ServerName);
#endif
}
catch (Exception ex)
{
CLog.AddException($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", ex);
sslStream = null;
throw;
}
finally
{
client.ReceiveTimeout = tmo;
}
}
else
{
networkStream = client.GetStream();
}
}
else
{
throw new Exception("Invalid client stream settings.");
}
}
/// <summary>
/// Get the requested field
/// </summary>
/// <param name="field">Field id to get</param>
/// <returns>The field if found, <see langword="null"/>otherwise</returns>
public CField GetField(int field)
{
try
{
return(Fields[field]);
}
catch (Exception ex)
{
CLog.AddException(MethodBase.GetCurrentMethod().Name, ex, "CHAMP: " + field);
return(null);
}
}
/// <summary>
/// Get a TLV from the list of TLV
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public CTLV GetTLV(string id)
{
try
{
return(_tlv[id]);
}
catch (Exception ex)
{
CLog.AddException(MethodBase.GetCurrentMethod().Name, ex, "T: " + id);
return(null);
}
}
/// <summary>
/// Remove a TLV record from the field
/// </summary>
/// <param name="tlv">The fully formatted TLV record</param>
/// <returns></returns>
public bool RemoveTLV(CTLV tlv)
{
try
{
_tlv.Remove(tlv.T);
return(true);
}
catch (Exception ex)
{
CLog.AddException(MethodBase.GetCurrentMethod().Name, ex, "TLV: " + tlv.ToString());
return(false);
}
}
/// <summary>
/// Add a connection for that endpoint
/// </summary>
/// <param name="accepted"></param>
/// <returns></returns>
public bool AddConnection(bool accepted)
{
try
{
Connections.Add(new Connection(accepted));
return(true);
}
catch (Exception ex)
{
CLog.AddException($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", ex);
}
return(false);
}
/// <summary>
/// Retrieve the value of a column inside an <see cref="OdbcDataAdapter"/>
/// </summary>
/// <param name="reader">The reader to look inside</param>
/// <param name="columnName">The column name to fetch</param>
/// <param name="value">The content of the column it it exists, null otherwise</param>
/// <returns>True if the column has been found and its value returned to the caller, false otherwise</returns>
public static bool ItemValue <TnX>(OdbcDataReader reader, string columnName, ref TnX value)
{
value = default(TnX);
try
{
value = (TnX)reader[columnName];
return(true);
}
catch (Exception ex)
{
CLog.AddException($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", ex, $"Column name: {columnName}");
}
return(false);
}
///// <summary>
///// Add a TLV field to the message
///// </summary>
///// <param name="f">The field to add <see cref="CField"/></param>
///// <returns>The string representation of the field</returns>
//public string AddField(CFieldTLV f)
// {
// try
// {
// Fields.Add(f.ID, f);
// Bitmap.SetBit(f.ID);
// return f.ToString();
// }
// catch (Exception ex)
// {
// CLog.AddException(MethodBase.GetCurrentMethod().Name, ex);
// return string.Empty;
// }
// }
/// <summary>
/// Remove a field from the APDU
/// </summary>
/// <param name="field">Field id to remove</param>
/// <returns>TRUE if removed, FALSE otherwise (it could not be there)</returns>
public bool RemoveField(int field)
{
try
{
Fields.Remove(field);
Bitmap.UnsetBit(field);
return(true);
}
catch (Exception ex)
{
CLog.AddException(MethodBase.GetCurrentMethod().Name, ex, "CHAMP: " + field);
return(false);
}
}
/// <summary>
/// Retrieve the value of a column inside an <see cref="OdbcDataAdapter"/>
///
/// WARNING THIS FUNCTION MAY RAISE AN EXCEPTION
///
/// </summary>
/// <param name="reader">The reader to look inside</param>
/// <param name="columnName">The column name to fetch</param>
/// <returns>The content of the column it it exists, AN EXCEPTION IF AN ERROR OCCURS</returns>
public static object ItemValue <TnX>(OdbcDataReader reader, string columnName)
{
object value = null;
try
{
value = reader[columnName];
return(value);
}
catch (Exception ex)
{
CLog.AddException($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", ex, $"Column name: {columnName}");
throw;
}
}
/// <summary>
/// Calls the <see cref="Win32UIActivityDelegate"/> method which is in charge of taking care of the activity, passing it the arguments
/// </summary>
/// <param name="method">The <see cref="Win32UIActivityDelegate"/> method to call</param>
/// <param name="activity">The <see cref="UIActivity"/> object to pass to the method</param>
public static void AddActivity(Win32UIActivityDelegate method, UIActivity activity)
{
try
{
if (null != method && null != activity && null != activity.Ctrl)
{
activity.Ctrl.Invoke(method, activity);
}
else
{
CLog.Add($"{activity} could not be added", TLog.ERROR);
}
}
catch (Exception ex)
{
CLog.AddException($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", ex, $"Exception while processing {activity}");
}
}
/// <summary>
/// Creates an APDU from an existing buffer building a database of fields as contained inside the APDU
/// </summary>
/// <param name="buffer">The buffer to scan to search the fields.</param>
public CAPDU(byte[] buffer)
{
int offset = 0;
// get message ID
ID = new CAPDUID(buffer, offset, ref offset);
if (0 != ID.Value)
{
// Get the bitmap
Bitmap = new CBitmap(buffer, offset, ref offset);
if (Bitmap.IsSet)
{
// arrived here we can process the fields described inside the bitmap
CFields fields = new CFields();
// offset now points to the beginning of the fields - WE ONLY CONSIDER BITMAP1 as bitmap2 fields are not described in the dictionary
for (int field = 2; field <= 0xFF && 0 < buffer.Length - offset; field++)
{
if (Bitmap.IsBitSet(field))
{
// create and retrieve field
//CField fg = fields.GetField(field);
//CField f = new CField(fg.ID, fg.Type, fg.Minlen, fg.Maxlen);
CField f = fields.GetField(field);
if (f.SetData(buffer, offset, out offset))
{
// save the field inside the list of fields
try
{
AddField(f);
}
catch (Exception ex)
{
CLog.AddException(MethodBase.GetCurrentMethod().Name, ex, "CHAMP: " + field);
}
}
}
}
}
}
}
/// <summary>
/// Add a field to the message
/// </summary>
/// <param name="f">The field to add <see cref="CField"/></param>
/// <returns>The string representation of the field</returns>
public string AddField(CField f)
{
try
{
if (0 != f.RawdataLen)
{
Fields.Add(f.ID, f);
Bitmap.SetBit(f.ID);
return(f.ToString());
}
else
{
return(string.Empty);
}
}
catch (Exception ex)
{
CLog.AddException(MethodBase.GetCurrentMethod().Name, ex);
return(string.Empty);
}
}
/// <summary>
/// Execute a non select request (insert, update, delete)
/// </summary>
/// <param name="command">A complete <see cref="OdbcCommand"/> detailing a non select request to launch</param>
/// <param name="nbRows">Number of rows impacted by the request</param>
/// <returns>True if the request was successfull processed, false otherwise</returns>
public bool NonSelectRequest(OdbcCommand command, ref int nbRows)
{
nbRows = 0;
if (IsOpen && null != command)
{
try
{
command.Connection = Database;
nbRows = command.ExecuteNonQuery();
return(true);
}
catch (Exception ex)
{
CLog.AddException($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", ex, $"SQL: {command.CommandText}");
}
finally
{
command.Dispose();
}
}
return(false);
}
/// <summary>
/// Selects a set of objects from the database and returns them inside a <see cref="OdbcDataAdapter"/> object to be extracted by the caller
/// </summary>
/// <param name="command">A complete <see cref="OdbcCommand"/> detailing a select request to launch</param>
/// <param name="reader">An <see cref="OdbcDataReader"/> object which can be used to fetch data from the result set</param>
/// <returns>True if successfull, false otherwise</returns>
public bool SelectRequest(OdbcCommand command, ref OdbcDataReader reader)
{
reader = null;
bool f = false;
if (IsOpen && null != command)
{
try
{
command.Connection = Database;
reader = command.ExecuteReader();
f = true;
}
catch (Exception ex)
{
CLog.AddException($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", ex);
}
finally
{
command.Dispose();
}
}
return(f);
}
/// <summary>
/// Fill a <see cref="DataTable"/> with data contained inside a database table
/// </summary>
/// <param name="sql"></param>
/// <returns></returns>
public DataTable FillTable(string sql)
{
if (IsOpen && !string.IsNullOrEmpty(sql))
{
try
{
sql = TryToFixTrueFalseTesting(sql);
OdbcDataAdapter da = new OdbcDataAdapter(sql, Database);
DataTable dataTable = new DataTable();
da.Fill(dataTable);
DataAdapter = da;
CommandBuilder = new OdbcCommandBuilder(DataAdapter);
DataAdapter.InsertCommand = CommandBuilder.GetInsertCommand();
DataAdapter.UpdateCommand = CommandBuilder.GetUpdateCommand();
DataAdapter.DeleteCommand = CommandBuilder.GetDeleteCommand();
return(dataTable);
}
catch (Exception ex)
{
CLog.AddException($"{MethodBase.GetCurrentMethod().Module.Name}.{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}", ex, $"Connection string: {ConnectionString}");
}
}
return(null);
}
