public override void WriteToStream(Stream output_stream)
{
PGUtil.WriteInt32(output_stream,
4 + 4 + 5 + (UTF8Encoding.GetByteCount(user_name) + 1) + 9 +
(UTF8Encoding.GetByteCount(database_name) + 1) + 10 + 4 + 1);
PGUtil.WriteInt32(output_stream, 196608);
// User name.
PGUtil.WriteString("user", output_stream);
// User name.
PGUtil.WriteString(user_name, output_stream);
// Database name.
PGUtil.WriteString("database", output_stream);
// Database name.
PGUtil.WriteString(database_name, output_stream);
// DateStyle.
PGUtil.WriteString("DateStyle", output_stream);
// DateStyle.
PGUtil.WriteString("ISO", output_stream);
output_stream.WriteByte(0);
output_stream.Flush();
}
public override int DoSkip(int length)
{
return(PGUtil.SkipEscapedBytes(_stream, buffer, length, ref _remainingBytes));
}
public override int DoRead(byte[] output, int outputIdx, int length)
{
return(PGUtil.ReadEscapedBytes(_stream, buffer, output, length, ref _remainingBytes, outputIdx));
}
public override int DoSkip(int length)
{
return(PGUtil.SkipChars(_stream, length, ref _remainingBytes));
}
public override int DoRead(char[] output, int outputIdx, int length)
{
return(PGUtil.ReadChars(_stream, output, length, ref _remainingBytes, outputIdx));
}
public void Dispose()
{
PGUtil.EatStreamBytes(_stream, _remainingBytes);
}
// Logging related values
//private static readonly String CLASSNAME = MethodBase.GetCurrentMethod().DeclaringType.Name;
public override void WriteToStream(Stream outputStream)
{
outputStream.WriteByte((byte)FrontEndMessageCode.Flush);
PGUtil.WriteInt32(outputStream, 4);
}
public NpgsqlBackEndKeyData(Stream stream, byte[] buffer)
{
PGUtil.EatShortStreamBytes(stream, 4);
ProcessID = PGUtil.ReadInt32(stream, buffer);
SecretKey = PGUtil.ReadInt32(stream, buffer);
}
// Logging related values
//private static readonly String CLASSNAME = MethodBase.GetCurrentMethod().DeclaringType.Name;
public static void Send(Stream stream)
{
stream.WriteByte((byte)FrontEndMessageCode.Sync);
PGUtil.WriteInt32(stream, 4);
}
internal NpgsqlError(Stream stream, byte[] buffer, ByteBuffer queue)
{
// Check the messageLength value. If it is 1178686529, this would be the
// "FATA" string, which would mean a protocol 2.0 error string.
if (PGUtil.ReadInt32(stream, buffer) == 1178686529)
{
string[] v2Parts = ("FATA" + PGUtil.ReadString(stream, queue)).Split(new char[] { ':' }, 2);
if (v2Parts.Length == 2)
{
_severity = v2Parts[0].Trim();
_message = v2Parts[1].Trim();
}
else
{
_severity = string.Empty;
_message = v2Parts[0].Trim();
}
}
else
{
for (char field = (char)stream.ReadByte(); field != 0; field = (char)stream.ReadByte())
{
switch (field)
{
case 'S':
_severity = PGUtil.ReadString(stream, queue);
break;
case 'C':
_code = PGUtil.ReadString(stream, queue);
break;
case 'M':
_message = PGUtil.ReadString(stream, queue);
break;
case 'D':
_detail = PGUtil.ReadString(stream, queue);
break;
case 'H':
_hint = PGUtil.ReadString(stream, queue);
break;
case 'P':
_position = PGUtil.ReadString(stream, queue);
break;
case 'p':
_internalPosition = PGUtil.ReadString(stream, queue);
break;
case 'q':
_internalQuery = PGUtil.ReadString(stream, queue);
break;
case 'W':
_where = PGUtil.ReadString(stream, queue);
break;
case 'F':
_file = PGUtil.ReadString(stream, queue);
break;
case 'L':
_line = PGUtil.ReadString(stream, queue);
break;
case 'R':
_routine = PGUtil.ReadString(stream, queue);
break;
case 's':
_schemaName = PGUtil.ReadString(stream, queue);
break;
case 't':
_tableName = PGUtil.ReadString(stream, queue);
break;
case 'c':
_columnName = PGUtil.ReadString(stream, queue);
break;
case 'd':
_datatypeName = PGUtil.ReadString(stream, queue);
break;
case 'n':
_constraintName = PGUtil.ReadString(stream, queue);
break;
default:
// Unknown error field; consume and discard.
PGUtil.ReadString(stream, queue);
break;
}
}
}
}
/// <summary>
/// Opens the physical connection to the server.
/// </summary>
/// <remarks>Usually called by the RequestConnector
/// Method of the connection pool manager.</remarks>
internal void Open()
{
ServerVersion = null;
// If Connection.ConnectionString specifies a protocol version, we will
// not try to fall back to version 2 on failure.
// Reset state to initialize new connector in pool.
CurrentState = NpgsqlClosedState.Instance;
// Get a raw connection, possibly SSL...
CurrentState.Open(this);
try
{
// Establish protocol communication and handle authentication...
CurrentState.Startup(this);
}
catch (NpgsqlException)
{
throw;
}
// Change the state of connection to open and ready.
State = ConnectionState.Open;
CurrentState = NpgsqlReadyState.Instance;
// Fall back to the old way, SELECT VERSION().
// This should not happen for protocol version 3+.
if (ServerVersion == null)
{
using (NpgsqlCommand command = new NpgsqlCommand("set DATESTYLE TO ISO;select version();", this))
{
ServerVersion = new Version(PGUtil.ExtractServerVersion((string)command.ExecuteScalar()));
}
}
StringBuilder sbInit = new StringBuilder();
// Adjust client encoding.
NpgsqlParameterStatus clientEncodingParam = null;
if (!ServerParameters.TryGetValue("client_encoding", out clientEncodingParam) ||
!string.Equals(clientEncodingParam.ParameterValue, "UTF8", StringComparison.OrdinalIgnoreCase) && !string.Equals(clientEncodingParam.ParameterValue, "UNICODE", StringComparison.OrdinalIgnoreCase))
{
sbInit.AppendLine("SET CLIENT_ENCODING TO UTF8;");
}
if (!string.IsNullOrEmpty(settings.SearchPath))
{
// TODO: Add proper message when finding a semicolon in search_path.
// This semicolon could lead to a sql injection security hole as someone could write in connection string:
// searchpath=public;delete from table; and it would be executed.
if (settings.SearchPath.Contains(";"))
{
throw new InvalidOperationException();
}
sbInit.AppendLine("SET SEARCH_PATH=" + settings.SearchPath + ";");
}
if (!string.IsNullOrEmpty(settings.ApplicationName))
{
if (!SupportsApplicationName)
{
//TODO
//throw new InvalidOperationException(resman.GetString("Exception_ApplicationNameNotSupported"));
throw new InvalidOperationException("ApplicationName not supported.");
}
if (settings.ApplicationName.Contains(";"))
{
throw new InvalidOperationException();
}
sbInit.AppendLine("SET APPLICATION_NAME='" + settings.ApplicationName.Replace('\'', '-') + "';");
}
/*
* Try to set SSL negotiation to 0. As of 2010-03-29, recent problems in SSL library implementations made
* postgresql to add a parameter to set a value when to do this renegotiation or 0 to disable it.
* Currently, Npgsql has a problem with renegotiation so, we are trying to disable it here.
* This only works on postgresql servers where the ssl renegotiation settings is supported of course.
* See http://lists.pgfoundry.org/pipermail/npgsql-devel/2010-February/001065.html for more information.
*/
sbInit.AppendLine("SET ssl_renegotiation_limit=0;");
/*
* Set precision digits to maximum value possible. For postgresql before 9 it was 2, after that, it is 3.
* This way, we set first to 2 and then to 3. If there is an error because of 3, it will have been set to 2 at least.
* Check bug report #1010992 for more information.
*/
sbInit.AppendLine("SET extra_float_digits=3;");
try
{
new NpgsqlCommand(sbInit.ToString(), this).ExecuteBlind();
}
catch
{
foreach (var line in sbInit.ToString().Split(Environment.NewLine.ToCharArray()))
{
try
{
if (line.Length > 0)
{
new NpgsqlCommand(line, this).ExecuteBlind();
}
}
catch { }
}
}
// Make a shallow copy of the type mapping that the connector will own.
// It is possible that the connector may add types to its private
// mapping that will not be valid to another connector, even
// if connected to the same backend version.
_oidToNameMapping = NpgsqlTypesHelper.CreateAndLoadInitialTypesMapping(this).Clone();
ProcessServerVersion();
// The connector is now fully initialized. Beyond this point, it is
// safe to release it back to the pool rather than closing it.
IsInitialized = true;
}
protected override object ReadNext()
{
int fieldSize = GetThisFieldCount();
if (fieldSize >= _messageSize)
{
AbandonShip();
}
_nextFieldSize = null;
// Check if this field is null
if (fieldSize == -1) // Null value
{
return(DBNull.Value);
}
NpgsqlRowDescription.FieldData field_descr = FieldData;
if (fieldSize >= 32768)
{
return(ReadLargeObject(field_descr, fieldSize));
}
try
{
if (field_descr.FormatCode == FormatCode.Text)
{
PGUtil.CheckedStreamRead(Stream, bytes.Large, 0, fieldSize);
var str = UTF8Encoding.GetString(bytes.Large, 0, fieldSize);
return
(NpgsqlTypesHelper.ConvertBackendStringToSystemType(
field_descr.TypeInfo,
str,
field_descr.TypeSize,
field_descr.TypeModifier));
}
else
{
var buffer = new byte[fieldSize];
PGUtil.CheckedStreamRead(Stream, buffer, 0, fieldSize);
return
(NpgsqlTypesHelper.ConvertBackendBytesToSystemType(
field_descr.TypeInfo,
buffer,
fieldSize,
field_descr.TypeModifier));
}
}
catch (IOException)
{
throw;
}
catch (InvalidCastException ice)
{
return(ice);
}
catch (Exception ex)
{
return(new InvalidCastException(ex.Message, ex));
}
}
private int GetThisFieldCount()
{
return((_nextFieldSize = _nextFieldSize ?? PGUtil.ReadInt32(Stream, buffer)).Value);
}
protected IEnumerable <IServerResponseObject> ProcessBackendResponses_Ver_3(NpgsqlConnector context)
{
try
{
Stream stream = context.Stream;
NpgsqlMediator mediator = context.Mediator;
var buffer = context.TmpBuffer;
var queue = context.ArrayBuffer;
List <NpgsqlError> errors = null;
for (; ;)
{
// Check the first Byte of response.
BackEndMessageCode message = (BackEndMessageCode)stream.ReadByte();
switch (message)
{
case BackEndMessageCode.ErrorResponse:
NpgsqlError error = new NpgsqlError(stream, buffer, queue);
error.ErrorSql = mediator.SqlSent;
if (errors == null)
{
errors = new List <NpgsqlError>();
}
errors.Add(error);
// Return imediately if it is in the startup state or connected state as
// there is no more messages to consume.
// Possible error in the NpgsqlStartupState:
// Invalid password.
// Possible error in the NpgsqlConnectedState:
// No pg_hba.conf configured.
if (!context.RequireReadyForQuery)
{
throw new NpgsqlException(errors);
}
break;
case BackEndMessageCode.AuthenticationRequest:
// Get the length in case we're getting AuthenticationGSSContinue
int authDataLength = PGUtil.ReadInt32(stream, buffer) - 8;
AuthenticationRequestType authType = (AuthenticationRequestType)PGUtil.ReadInt32(stream, buffer);
switch (authType)
{
case AuthenticationRequestType.AuthenticationOk:
break;
case AuthenticationRequestType.AuthenticationClearTextPassword:
// Send the PasswordPacket.
ChangeState(context, NpgsqlStartupState.Instance);
context.Authenticate(context.Password);
break;
case AuthenticationRequestType.AuthenticationMD5Password:
// Now do the "MD5-Thing"
// for this the Password has to be:
// 1. md5-hashed with the username as salt
// 2. md5-hashed again with the salt we get from the backend
MD5 md5 = MD5.Create();
// 1.
byte[] passwd = context.Password;
byte[] saltUserName = ENCODING_UTF8.GetBytes(context.UserName);
byte[] crypt_buf = new byte[passwd.Length + saltUserName.Length];
passwd.CopyTo(crypt_buf, 0);
saltUserName.CopyTo(crypt_buf, passwd.Length);
StringBuilder sb = new StringBuilder();
byte[] hashResult = md5.ComputeHash(crypt_buf);
foreach (byte b in hashResult)
{
sb.Append(b.ToString("x2"));
}
String prehash = sb.ToString();
byte[] prehashbytes = ENCODING_UTF8.GetBytes(prehash);
crypt_buf = new byte[prehashbytes.Length + 4];
stream.Read(crypt_buf, prehashbytes.Length, 4);
// Send the PasswordPacket.
ChangeState(context, NpgsqlStartupState.Instance);
// 2.
prehashbytes.CopyTo(crypt_buf, 0);
sb = new StringBuilder("md5"); // This is needed as the backend expects md5 result starts with "md5"
hashResult = md5.ComputeHash(crypt_buf);
foreach (byte b in hashResult)
{
sb.Append(b.ToString("x2"));
}
context.Authenticate(ENCODING_UTF8.GetBytes(sb.ToString()));
break;
#if WINDOWS && UNMANAGED
case AuthenticationRequestType.AuthenticationSSPI:
{
if (context.IntegratedSecurity)
{
// For SSPI we have to get the IP-Address (hostname doesn't work)
string ipAddressString = ((IPEndPoint)context.Socket.RemoteEndPoint).Address.ToString();
context.SSPI = new SSPIHandler(ipAddressString, "POSTGRES");
ChangeState(context, NpgsqlStartupState.Instance);
context.Authenticate(context.SSPI.Continue(null));
break;
}
else
{
// TODO: correct exception
throw new Exception();
}
}
case AuthenticationRequestType.AuthenticationGSSContinue:
{
byte[] authData = new byte[authDataLength];
PGUtil.CheckedStreamRead(stream, authData, 0, authDataLength);
byte[] passwd_read = context.SSPI.Continue(authData);
if (passwd_read.Length != 0)
{
context.Authenticate(passwd_read);
}
break;
}
#endif
default:
// Only AuthenticationClearTextPassword and AuthenticationMD5Password supported for now.
if (errors == null)
{
errors = new List <NpgsqlError>();
}
errors.Add(
new NpgsqlError(String.Format(resman.GetString("Exception_AuthenticationMethodNotSupported"), authType)));
throw new NpgsqlException(errors);
}
break;
case BackEndMessageCode.RowDescription:
yield return(context.RowDescription());
break;
case BackEndMessageCode.ParameterDescription:
// Do nothing,for instance, just read...
int length = PGUtil.ReadInt32(stream, buffer);
int nb_param = PGUtil.ReadInt16(stream, buffer);
//WTF
for (int i = 0; i < nb_param; i++)
{
int typeoid = PGUtil.ReadInt32(stream, buffer);
}
break;
case BackEndMessageCode.DataRow:
yield return(context.NextRow());
break;
case BackEndMessageCode.ReadyForQuery:
// Possible status bytes returned:
// I = Idle (no transaction active).
// T = In transaction, ready for more.
// E = Error in transaction, queries will fail until transaction aborted.
// Just eat the status byte, we have no use for it at this time.
PGUtil.ReadInt32(stream, buffer);
stream.ReadByte();
ChangeState(context, NpgsqlReadyState.Instance);
if (errors != null)
{
throw new NpgsqlException(errors);
}
yield break;
case BackEndMessageCode.BackendKeyData:
// BackendKeyData message.
NpgsqlBackEndKeyData backend_keydata = new NpgsqlBackEndKeyData(stream, buffer);
context.BackEndKeyData = backend_keydata;
// Wait for ReadForQuery message
break;
case BackEndMessageCode.NoticeResponse:
// Notices and errors are identical except that we
// just throw notices away completely ignored.
context.FireNotice(new NpgsqlError(stream, buffer, queue));
break;
case BackEndMessageCode.CompletedResponse:
PGUtil.ReadInt32(stream, buffer);
yield return(new CompletedResponse(stream, queue));
break;
case BackEndMessageCode.ParseComplete:
// Just read up the message length.
PGUtil.ReadInt32(stream, buffer);
yield break;
case BackEndMessageCode.BindComplete:
// Just read up the message length.
PGUtil.ReadInt32(stream, buffer);
yield break;
case BackEndMessageCode.EmptyQueryResponse:
PGUtil.ReadInt32(stream, buffer);
break;
case BackEndMessageCode.NotificationResponse:
// Eat the length
PGUtil.ReadInt32(stream, buffer);
context.FireNotification(new NpgsqlNotificationEventArgs(stream, true, buffer, queue));
if (context.IsNotificationThreadRunning)
{
yield break;
}
break;
case BackEndMessageCode.ParameterStatus:
NpgsqlParameterStatus parameterStatus = new NpgsqlParameterStatus(stream, queue);
context.AddParameterStatus(parameterStatus);
if (parameterStatus.Parameter == "server_version")
{
// Deal with this here so that if there are
// changes in a future backend version, we can handle it here in the
// protocol handler and leave everybody else put of it.
string versionString = parameterStatus.ParameterValue.Trim();
for (int idx = 0; idx != versionString.Length; ++idx)
{
char c = parameterStatus.ParameterValue[idx];
if (!char.IsDigit(c) && c != '.')
{
versionString = versionString.Substring(0, idx);
break;
}
}
context.ServerVersion = new Version(versionString);
}
break;
case BackEndMessageCode.NoData:
// This nodata message may be generated by prepare commands issued with queries which doesn't return rows
// for example insert, update or delete.
// Just eat the message.
PGUtil.ReadInt32(stream, buffer);
break;
case BackEndMessageCode.CopyInResponse:
// Enter COPY sub protocol and start pushing data to server
ChangeState(context, NpgsqlCopyInState.Instance);
PGUtil.ReadInt32(stream, buffer); // length redundant
context.CurrentState.StartCopy(context, ReadCopyHeader(stream, buffer));
yield break;
// Either StartCopy called us again to finish the operation or control should be passed for user to feed copy data
case BackEndMessageCode.CopyOutResponse:
// Enter COPY sub protocol and start pulling data from server
ChangeState(context, NpgsqlCopyOutState.Instance);
PGUtil.ReadInt32(stream, buffer); // length redundant
context.CurrentState.StartCopy(context, ReadCopyHeader(stream, buffer));
yield break;
// Either StartCopy called us again to finish the operation or control should be passed for user to feed copy data
case BackEndMessageCode.CopyData:
Int32 len = PGUtil.ReadInt32(stream, buffer) - 4;
byte[] buf = new byte[len];
PGUtil.ReadBytes(stream, buf, 0, len);
context.Mediator.ReceivedCopyData = buf;
yield break; // read data from server one chunk at a time while staying in copy operation mode
case BackEndMessageCode.CopyDone:
PGUtil.ReadInt32(stream, buffer); // CopyDone can not have content so this is always 4
// This will be followed by normal CommandComplete + ReadyForQuery so no op needed
break;
case BackEndMessageCode.IO_ERROR:
// Connection broken. Mono returns -1 instead of throwing an exception as ms.net does.
throw new IOException();
default:
// This could mean a number of things
// We've gotten out of sync with the backend?
// We need to implement this type?
// Backend has gone insane?
// FIXME
// what exception should we really throw here?
throw new NotSupportedException(String.Format("Backend sent unrecognized response type: {0}", (Char)message));
}
}
}
finally
{
context.RequireReadyForQuery = true;
}
}
public override void WriteToStream(Stream outputStream)
{
Int32 messageLength = 4 + UTF8Encoding.GetByteCount(_portalName) + 1 +
UTF8Encoding.GetByteCount(_preparedStatementName) + 1 + 2 + (_parameterFormatCodes.Length * 2) +
2;
// Get size of parameter values.
Int32 i;
if (_parameterValues != null)
{
for (i = 0; i < _parameterValues.Length; i++)
{
messageLength += 4;
if (_parameterValues[i] != null)
{
if (((_parameterFormatCodes.Length == 1) && (_parameterFormatCodes[0] == (Int16)FormatCode.Binary)) ||
((_parameterFormatCodes.Length != 1) && (_parameterFormatCodes[i] == (Int16)FormatCode.Binary)))
{
messageLength += ((Byte[])_parameterValues[i]).Length;
}
else
{
messageLength += UTF8Encoding.GetByteCount((String)_parameterValues[i]);
}
}
}
}
messageLength += 2 + (_resultFormatCodes.Length * 2);
outputStream.WriteByte((byte)FrontEndMessageCode.Bind);
PGUtil.WriteInt32(outputStream, messageLength);
PGUtil.WriteString(_portalName, outputStream);
PGUtil.WriteString(_preparedStatementName, outputStream);
PGUtil.WriteInt16(outputStream, (Int16)_parameterFormatCodes.Length);
for (i = 0; i < _parameterFormatCodes.Length; i++)
{
PGUtil.WriteInt16(outputStream, _parameterFormatCodes[i]);
}
if (_parameterValues != null)
{
PGUtil.WriteInt16(outputStream, (Int16)_parameterValues.Length);
for (i = 0; i < _parameterValues.Length; i++)
{
if (((_parameterFormatCodes.Length == 1) && (_parameterFormatCodes[0] == (Int16)FormatCode.Binary)) ||
((_parameterFormatCodes.Length != 1) && (_parameterFormatCodes[i] == (Int16)FormatCode.Binary)))
{
Byte[] parameterValue = (Byte[])_parameterValues[i];
if (parameterValue == null)
{
PGUtil.WriteInt32(outputStream, -1);
}
else
{
PGUtil.WriteInt32(outputStream, parameterValue.Length);
outputStream.Write(parameterValue, 0, parameterValue.Length);
}
}
else
{
if ((_parameterValues[i] == null))
{
PGUtil.WriteInt32(outputStream, -1);
}
else
{
Byte[] parameterValueBytes = UTF8Encoding.GetBytes((String)_parameterValues[i]);
PGUtil.WriteInt32(outputStream, parameterValueBytes.Length);
outputStream.Write(parameterValueBytes, 0, parameterValueBytes.Length);
}
}
}
}
else
{
PGUtil.WriteInt16(outputStream, 0);
}
PGUtil.WriteInt16(outputStream, (Int16)_resultFormatCodes.Length);
for (i = 0; i < _resultFormatCodes.Length; i++)
{
PGUtil.WriteInt16(outputStream, _resultFormatCodes[i]);
}
}
public override void Open(NpgsqlConnector context)
{
try
{
IPAddress[] ips = ResolveIPHost(context.Host);
Socket socket = null;
// try every ip address of the given hostname, use the first reachable one
foreach (IPAddress ip in ips)
{
IPEndPoint ep = new IPEndPoint(ip, context.Port);
socket = new Socket(ep.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
try
{
IAsyncResult result = socket.BeginConnect(ep, null, null);
if (!result.AsyncWaitHandle.WaitOne(context.ConnectionTimeout * 1000, true))
{
socket.Close();
throw new Exception("Connection establishment timeout. Increase Timeout value in ConnectionString.");
}
socket.EndConnect(result);
// connect was successful, leave the loop
break;
}
catch (Exception)
{
socket.Close();
}
}
if (socket == null || !socket.Connected)
{
throw new Exception(string.Format("Failed to establish a connection to '{0}'.", context.Host));
}
Stream stream = new NpgsqlNetworkStream(context, socket, true);
// If the PostgreSQL server has SSL connectors enabled Open SslClientStream if (response == 'S') {
if (context.SSL || (context.SslMode == SslMode.Require) || (context.SslMode == SslMode.Prefer))
{
PGUtil.WriteInt32(stream, 8);
PGUtil.WriteInt32(stream, 80877103);
// Receive response
Char response = (Char)stream.ReadByte();
if (response == 'S')
{
//create empty collection
X509CertificateCollection clientCertificates = new X509CertificateCollection();
//trigger the callback to fetch some certificates
context.DefaultProvideClientCertificatesCallback(clientCertificates);
stream = new SslClientStream(
stream,
context.Host,
true,
SecurityProtocolType.Default,
clientCertificates);
((SslClientStream)stream).ClientCertSelectionDelegate =
new CertificateSelectionCallback(context.DefaultCertificateSelectionCallback);
((SslClientStream)stream).ServerCertValidationDelegate =
new CertificateValidationCallback(context.DefaultCertificateValidationCallback);
((SslClientStream)stream).PrivateKeyCertSelectionDelegate =
new PrivateKeySelectionCallback(context.DefaultPrivateKeySelectionCallback);
}
else if (context.SslMode == SslMode.Require)
{
throw new InvalidOperationException("Ssl connection requested. No Ssl enabled connection from this host is configured.");
}
}
context.Stream = new NpgsqlBufferedStream(stream);
context.Socket = socket;
ChangeState(context, NpgsqlConnectedState.Instance);
}
//FIXME: Exceptions that come from what we are handling should be wrapped - e.g. an error connecting to
//the server should definitely be presented to the uesr as an NpgsqlError. Exceptions from userland should
//be passed untouched - e.g. ThreadAbortException because the user started this in a thread they created and
//then aborted should be passed through.
//Are there any others that should be pass through? Alternatively, are there a finite number that should
//be wrapped?
catch (ThreadAbortException)
{
throw;
}
catch (Exception e)
{
throw new NpgsqlException(e.Message, e);
}
}
internal NpgsqlNotificationEventArgs(Stream stream, bool readAdditional, byte[] buffer, ByteBuffer queue)
{
PID = PGUtil.ReadInt32(stream, buffer);
Condition = PGUtil.ReadString(stream, queue);
AdditionalInformation = readAdditional ? PGUtil.ReadString(stream, queue) : string.Empty;
}
