IMySqlValue IMySqlValue.ReadValue(MySqlPacket packet, long length,
bool nullVal)
{
if (nullVal)
return new MySqlDouble(true);
if (length == -1)
{
byte[] b = new byte[8];
packet.Read(b, 0, 8);
return new MySqlDouble(BitConverter.ToDouble(b, 0));
}
string s = packet.ReadString(length);
double d;
try
{
d = Double.Parse(s, CultureInfo.InvariantCulture);
}
catch (OverflowException)
{
// MySQL server < 5.5 can return values not compatible with
// Double.Parse(), i.e out of range for double.
if (s.StartsWith("-", StringComparison.Ordinal))
d = double.MinValue;
else
d = double.MaxValue;
}
return new MySqlDouble(d);
}
void IMySqlValue.WriteValue(MySqlPacket packet, bool binary, object val, int length)
{
if (!(val is TimeSpan))
throw new MySqlException("Only TimeSpan objects can be serialized by MySqlTimeSpan");
TimeSpan ts = (TimeSpan)val;
bool negative = ts.TotalMilliseconds < 0;
ts = ts.Duration();
if (binary)
{
if (ts.Milliseconds > 0)
packet.WriteByte(12);
else
packet.WriteByte(8);
packet.WriteByte((byte)(negative ? 1 : 0));
packet.WriteInteger(ts.Days, 4);
packet.WriteByte((byte)ts.Hours);
packet.WriteByte((byte)ts.Minutes);
packet.WriteByte((byte)ts.Seconds);
if (ts.Milliseconds > 0)
{
long mval = ts.Milliseconds*1000;
packet.WriteInteger(mval, 4);
}
}
else
{
String s = String.Format("'{0}{1} {2:00}:{3:00}:{4:00}.{5:0000000}'",
negative ? "-" : "", ts.Days, ts.Hours, ts.Minutes, ts.Seconds, ts.Ticks % 10000000);
packet.WriteStringNoNull(s);
}
}
void IMySqlValue.WriteValue(MySqlPacket packet, bool binary, object val, int length)
{
Guid guid = Guid.Empty;
string valAsString = val as string;
byte[] valAsByte = val as byte[];
if (val is Guid)
guid = (Guid)val;
else
{
try
{
if (valAsString != null)
guid = new Guid(valAsString);
else if (valAsByte != null)
guid = new Guid(valAsByte);
}
catch (Exception ex)
{
throw new MySqlException(Resources.DataNotInSupportedFormat, ex);
}
}
if (OldGuids)
WriteOldGuid(packet, guid, binary);
else
{
guid.ToString("D");
if (binary)
packet.WriteLenString(guid.ToString("D"));
else
packet.WriteStringNoNull("'" + MySqlHelper.EscapeString(guid.ToString("D")) + "'");
}
}
void IMySqlValue.WriteValue(MySqlPacket packet, bool binary, object v, int length)
{
uint val = (v is uint) ? (uint)v : Convert.ToUInt32(v);
if (binary)
packet.WriteInteger((long)val, is24Bit ? 3 : 4);
else
packet.WriteStringNoNull(val.ToString());
}
public void WriteValue(MySqlPacket packet, bool binary, object value, int length)
{
ulong v = (value is UInt64) ? (UInt64)value : Convert.ToUInt64(value);
if (binary)
packet.WriteInteger((long)v, 8);
else
packet.WriteStringNoNull(v.ToString());
}
void IMySqlValue.WriteValue(MySqlPacket packet, bool binary, object val, int length)
{
double v = (val is double) ? (double)val : Convert.ToDouble(val);
if (binary)
packet.Write(BitConverter.GetBytes(v));
else
packet.WriteStringNoNull(v.ToString("R", CultureInfo.InvariantCulture));
}
void IMySqlValue.WriteValue(MySqlPacket packet, bool binary, object val, int length)
{
long v = (val is Int64) ? (Int64)val : Convert.ToInt64(val);
if (binary)
packet.WriteInteger(v, 8);
else
packet.WriteStringNoNull(v.ToString());
}
void IMySqlValue.WriteValue(MySqlPacket packet, bool binary, object val, int length)
{
int v = (val is Int32) ? (int)val : Convert.ToInt32(val);
if (binary)
packet.WriteInteger((long)v, is24Bit ? 3 : 4);
else
packet.WriteStringNoNull(v.ToString());
}
void IMySqlValue.WriteValue(MySqlPacket packet, bool binary, object val, int length)
{
int v = (val is UInt16) ? (UInt16)val : Convert.ToUInt16(val);
if (binary)
packet.WriteInteger((long)v, 2);
else
packet.WriteStringNoNull(v.ToString());
}
void IMySqlValue.WriteValue(MySqlPacket packet, bool binary, object val, int length)
{
byte v = (val is byte) ? (byte)val : Convert.ToByte(val);
if (binary)
packet.WriteByte(v);
else
packet.WriteStringNoNull(v.ToString());
}
IMySqlValue IMySqlValue.ReadValue(MySqlPacket packet, long length, bool nullVal)
{
if (nullVal)
return new MySqlUInt16(true);
if (length == -1)
return new MySqlUInt16((ushort)packet.ReadInteger(2));
else
return new MySqlUInt16(UInt16.Parse(packet.ReadString(length)));
}
IMySqlValue IMySqlValue.ReadValue(MySqlPacket packet, long length, bool nullVal)
{
if (nullVal)
return new MySqlUByte(true);
if (length == -1)
return new MySqlUByte((byte)packet.ReadByte());
else
return new MySqlUByte(Byte.Parse(packet.ReadString(length)));
}
IMySqlValue IMySqlValue.ReadValue(MySqlPacket packet, long length, bool nullVal)
{
if (nullVal)
return new MySqlInt64(true);
if (length == -1)
return new MySqlInt64((long)packet.ReadULong(8));
else
return new MySqlInt64(Int64.Parse(packet.ReadString(length)));
}
IMySqlValue IMySqlValue.ReadValue(MySqlPacket packet, long length, bool nullVal)
{
if (nullVal)
return new MySqlUInt32((this as IMySqlValue).MySqlDbType, true);
if (length == -1)
return new MySqlUInt32((this as IMySqlValue).MySqlDbType,
(uint)packet.ReadInteger(4));
else
return new MySqlUInt32((this as IMySqlValue).MySqlDbType,
UInt32.Parse(packet.ReadString(length), NumberStyles.Any, CultureInfo.InvariantCulture));
}
IMySqlValue IMySqlValue.ReadValue(MySqlPacket packet, long length, bool nullVal)
{
if (nullVal)
return new MySqlString(type, true);
string s = String.Empty;
if (length == -1)
s = packet.ReadLenString();
else
s = packet.ReadString(length);
MySqlString str = new MySqlString(type, s);
return str;
}
public MySqlStream(Encoding encoding)
{
// we have no idea what the real value is so we start off with the max value
// The real value will be set in NativeDriver.Configure()
maxPacketSize = ulong.MaxValue;
// we default maxBlockSize to MaxValue since we will get the 'real' value in
// the authentication handshake and we know that value will not exceed
// true maxBlockSize prior to that.
maxBlockSize = Int32.MaxValue;
packet = new MySqlPacket(encoding);
}
IMySqlValue IMySqlValue.ReadValue(MySqlPacket packet, long length, bool nullVal)
{
if (nullVal)
return new MySqlSingle(true);
if (length == -1)
{
byte[] b = new byte[4];
packet.Read(b, 0, 4);
return new MySqlSingle(BitConverter.ToSingle(b, 0));
}
return new MySqlSingle(Single.Parse(packet.ReadString(length),
CultureInfo.InvariantCulture));
}
void IMySqlValue.WriteValue(MySqlPacket packet, bool binary, object val, int length)
{
string v = val.ToString();
if (length > 0)
{
length = Math.Min(length, v.Length);
v = v.Substring(0, length);
}
if (binary)
packet.WriteLenString(v);
else
packet.WriteStringNoNull("'" + MySqlHelper.EscapeString(v) + "'");
}
public IMySqlValue ReadValue(MySqlPacket packet, long length, bool isNull)
{
this.isNull = isNull;
if (isNull)
return this;
if (length == -1)
length = packet.ReadFieldLength();
if (ReadAsString)
mValue = UInt64.Parse(packet.ReadString(length));
else
mValue = (UInt64)packet.ReadBitValue((int)length);
return this;
}
IMySqlValue IMySqlValue.ReadValue(MySqlPacket packet, long length, bool nullVal)
{
if (nullVal)
return new MySqlByte(true);
if (length == -1)
return new MySqlByte((sbyte)packet.ReadByte());
else
{
string s = packet.ReadString(length);
MySqlByte b = new MySqlByte(SByte.Parse(s, NumberStyles.Any, CultureInfo.InvariantCulture));
b.TreatAsBoolean = TreatAsBoolean;
return b;
}
}
public override void SendQuery(MySqlPacket p)
{
rowSizeInBytes = 0;
string cmdText = Encoding.GetString(p.Buffer, 5, p.Length - 5);
string normalized_query = null;
if (cmdText.Length > 300)
{
QueryNormalizer normalizer = new QueryNormalizer();
normalized_query = normalizer.Normalize(cmdText);
cmdText = cmdText.Substring(0, 300);
}
base.SendQuery(p);
MySqlTrace.TraceEvent(TraceEventType.Information, MySqlTraceEventType.QueryOpened,
Resources.TraceQueryOpened, driverId, ThreadID, cmdText);
if (normalized_query != null)
MySqlTrace.TraceEvent(TraceEventType.Information, MySqlTraceEventType.QueryNormalized,
Resources.TraceQueryNormalized, driverId, ThreadID, normalized_query);
}
void IMySqlValue.WriteValue(MySqlPacket packet, bool binary, object val, int length)
{
byte[] buffToWrite = (val as byte[]);
if (buffToWrite == null)
{
char[] valAsChar = (val as Char[]);
if (valAsChar != null)
buffToWrite = packet.Encoding.GetBytes(valAsChar);
else
{
string s = val.ToString();
if (length == 0)
length = s.Length;
else
s = s.Substring(0, length);
buffToWrite = packet.Encoding.GetBytes(s);
}
}
// we assume zero length means write all of the value
if (length == 0)
length = buffToWrite.Length;
if (buffToWrite == null)
throw new MySqlException("Only byte arrays and strings can be serialized by MySqlBinary");
if (binary)
{
packet.WriteLength(length);
packet.Write(buffToWrite, 0, length);
}
else
{
packet.WriteStringNoNull("_binary ");
packet.WriteByte((byte)'\'');
EscapeByteArray(buffToWrite, length, packet);
packet.WriteByte((byte)'\'');
}
}
void IMySqlValue.SkipValue(MySqlPacket packet)
{
packet.Position += 4;
}
public void Open()
{
// connect to one of our specified hosts
try
{
baseStream = StreamCreator.GetStream(Settings);
#if NET46
if (Settings.IncludeSecurityAsserts)
{
MySqlSecurityPermission.CreatePermissionSet(false).Assert();
}
#endif
}
catch (System.Security.SecurityException)
{
throw;
}
catch (Exception ex)
{
throw new MySqlException(Resources.UnableToConnectToHost,
(int)MySqlErrorCode.UnableToConnectToHost, ex);
}
if (baseStream == null)
{
throw new MySqlException(Resources.UnableToConnectToHost,
(int)MySqlErrorCode.UnableToConnectToHost);
}
int maxSinglePacket = 255 * 255 * 255;
stream = new MySqlStream(baseStream, Encoding, false);
stream.ResetTimeout((int)Settings.ConnectionTimeout * 1000);
// read off the welcome packet and parse out it's values
packet = stream.ReadPacket();
int protocol = packet.ReadByte();
string versionString = packet.ReadString();
owner.isFabric = versionString.EndsWith("fabric", StringComparison.OrdinalIgnoreCase);
version = DBVersion.Parse(versionString);
if (!owner.isFabric && !version.isAtLeast(5, 0, 0))
{
throw new NotSupportedException(Resources.ServerTooOld);
}
threadId = packet.ReadInteger(4);
encryptionSeed = packet.ReadString();
maxSinglePacket = (256 * 256 * 256) - 1;
// read in Server capabilities if they are provided
ClientFlags serverCaps = 0;
if (packet.HasMoreData)
{
serverCaps = (ClientFlags)packet.ReadInteger(2);
}
/* New protocol with 16 bytes to describe server characteristics */
owner.ConnectionCharSetIndex = (int)packet.ReadByte();
serverStatus = (ServerStatusFlags)packet.ReadInteger(2);
// Since 5.5, high bits of server caps are stored after status.
// Previously, it was part of reserved always 0x00 13-byte filler.
uint serverCapsHigh = (uint)packet.ReadInteger(2);
serverCaps |= (ClientFlags)(serverCapsHigh << 16);
packet.Position += 11;
string seedPart2 = packet.ReadString();
encryptionSeed += seedPart2;
string authenticationMethod = "";
if ((serverCaps & ClientFlags.PLUGIN_AUTH) != 0)
{
authenticationMethod = packet.ReadString();
}
else
{
// Some MySql versions like 5.1, don't give name of plugin, default to native password.
authenticationMethod = "mysql_native_password";
}
// based on our settings, set our connection flags
SetConnectionFlags(serverCaps);
packet.Clear();
packet.WriteInteger((int)connectionFlags, 4);
if ((serverCaps & ClientFlags.SSL) == 0)
{
if ((Settings.SslMode != MySqlSslMode.None) &&
(Settings.SslMode != MySqlSslMode.Preferred))
{
// Client requires SSL connections.
string message = String.Format(Resources.NoServerSSLSupport,
Settings.Server);
throw new MySqlException(message);
}
}
else if (Settings.SslMode != MySqlSslMode.None)
{
stream.SendPacket(packet);
StartSSL();
packet.Clear();
packet.WriteInteger((int)connectionFlags, 4);
}
packet.WriteInteger(maxSinglePacket, 4);
packet.WriteByte(8);
packet.Write(new byte[23]);
Authenticate(authenticationMethod, false);
// if we are using compression, then we use our CompressedStream class
// to hide the ugliness of managing the compression
if ((connectionFlags & ClientFlags.COMPRESS) != 0)
{
stream = new MySqlStream(baseStream, Encoding, true);
}
// give our stream the server version we are connected to.
// We may have some fields that are read differently based
// on the version of the server we are connected to.
packet.Version = version;
stream.MaxBlockSize = maxSinglePacket;
}
internal MySqlPacket ReadPacket()
{
return(packet = stream.ReadPacket());
}
IMySqlValue IMySqlValue.ReadValue(MySqlPacket packet, long length, bool nullVal)
{
if (nullVal) return new MySqlDateTime(type, true);
if (length >= 0)
{
string value = packet.ReadString(length);
return ParseMySql(value);
}
long bufLength = packet.ReadByte();
int year = 0, month = 0, day = 0;
int hour = 0, minute = 0, second = 0, microsecond = 0;
if (bufLength >= 4)
{
year = packet.ReadInteger(2);
month = packet.ReadByte();
day = packet.ReadByte();
}
if (bufLength > 4)
{
hour = packet.ReadByte();
minute = packet.ReadByte();
second = packet.ReadByte();
}
if (bufLength > 7)
{
microsecond = packet.Read3ByteInt();
packet.ReadByte();
}
return new MySqlDateTime(type, year, month, day, hour, minute, second, microsecond);
}
void IMySqlValue.SkipValue(MySqlPacket packet)
{
int len = packet.ReadByte();
packet.Position += len;
}
private void SerializeText(MySqlPacket packet, MySqlDateTime value)
{
string val = String.Empty;
val = String.Format("{0:0000}-{1:00}-{2:00}",
value.Year, value.Month, value.Day);
if (type != MySqlDbType.Date)
{
val = value.Microsecond > 0 ? String.Format("{0} {1:00}:{2:00}:{3:00}.{4:000000}", val,
value.Hour, value.Minute, value.Second, value.Microsecond) : String.Format("{0} {1:00}:{2:00}:{3:00} ", val,
value.Hour, value.Minute, value.Second);
}
packet.WriteStringNoNull("'" + val + "'");
}
void IMySqlValue.WriteValue(MySqlPacket packet, bool binary, object value, int length)
{
MySqlDateTime dtValue;
string valueAsString = value as string;
if (value is DateTime)
dtValue = new MySqlDateTime(type, (DateTime)value);
else if (valueAsString != null)
dtValue = MySqlDateTime.Parse(valueAsString);
else if (value is MySqlDateTime)
dtValue = (MySqlDateTime)value;
else
throw new MySqlException("Unable to serialize date/time value.");
if (!binary)
{
SerializeText(packet, dtValue);
return;
}
if (dtValue.Microsecond > 0)
packet.WriteByte(11);
else
packet.WriteByte(7);
packet.WriteInteger(dtValue.Year, 2);
packet.WriteByte((byte)dtValue.Month);
packet.WriteByte((byte)dtValue.Day);
if (type == MySqlDbType.Date)
{
packet.WriteByte(0);
packet.WriteByte(0);
packet.WriteByte(0);
}
else
{
packet.WriteByte((byte)dtValue.Hour);
packet.WriteByte((byte)dtValue.Minute);
packet.WriteByte((byte)dtValue.Second);
}
if (dtValue.Microsecond > 0)
{
long val = dtValue.Microsecond;
for (int x = 0; x < 4; x++)
{
packet.WriteByte((byte)(val & 0xff));
val >>= 8;
}
}
}
void IMySqlValue.SkipValue(MySqlPacket packet)
{
int len = (int)packet.ReadFieldLength();
packet.Position += len;
}
private void ReadEOF()
{
packet = stream.ReadPacket();
CheckEOF();
}
public IMySqlValue ReadValue(MySqlPacket packet, long length, bool isNull)
{
if (isNull)
return new MySqlJson(true);
string s = String.Empty;
if (length == -1)
s = packet.ReadLenString();
else
s = packet.ReadString(length);
MySqlJson str = new MySqlJson(s);
return str;
}
/// <summary>
/// Serializes the given parameter to the given memory stream
/// </summary>
/// <remarks>
/// <para>This method is called by PrepareSqlBuffers to convert the given
/// parameter to bytes and write those bytes to the given memory stream.
/// </para>
/// </remarks>
/// <returns>True if the parameter was successfully serialized, false otherwise.</returns>
private bool SerializeParameter(MySqlParameterCollection parameters,
MySqlPacket packet, string parmName, int parameterIndex)
{
MySqlParameter parameter = null;
if (!parameters.containsUnnamedParameters)
parameter = parameters.GetParameterFlexible(parmName, false);
else
{
if (parameterIndex <= parameters.Count)
parameter = parameters[parameterIndex];
else
throw new MySqlException(Resources.ParameterIndexNotFound);
}
if (parameter == null)
{
// if we are allowing user variables and the parameter name starts with @
// then we can't throw an exception
if (parmName.StartsWith("@", StringComparison.Ordinal) && ShouldIgnoreMissingParameter(parmName))
return false;
throw new MySqlException(
String.Format(Resources.ParameterMustBeDefined, parmName));
}
parameter.Serialize(packet, false, Connection.Settings);
return true;
}
internal void SendPacket(MySqlPacket p)
{
stream.SendPacket(p);
}
