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);
}
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 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 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));
}
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;
}
public long GetResult(ref long affectedRow, ref long insertedId)
{
try
{
packet = stream.ReadPacket();
}
catch (TimeoutException)
{
// Do not reset serverStatus, allow to reenter, e.g when
// ResultSet is closed.
throw;
}
catch (Exception)
{
serverStatus = 0;
throw;
}
var fieldCount = (long)packet.ReadFieldLength();
if (-1 == fieldCount)
{
string filename = packet.ReadString();
SendFileToServer(filename);
return(GetResult(ref affectedRow, ref insertedId));
}
else if (fieldCount == 0)
{
// the code to read last packet will set these server status vars
// again if necessary.
serverStatus &= ~(ServerStatusFlags.AnotherQuery |
ServerStatusFlags.MoreResults);
affectedRow = (int)packet.ReadFieldLength();
insertedId = (long)packet.ReadFieldLength();
serverStatus = (ServerStatusFlags)packet.ReadInteger(2);
warnings += packet.ReadInteger(2);
if (packet.HasMoreData)
{
packet.ReadLenString(); //TODO: server message
}
}
return(fieldCount);
}
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;
}
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;
}
IMySqlValue IMySqlValue.ReadValue(MySqlPacket packet, long length, bool nullVal)
{
if (nullVal) return new MySqlTimeSpan(true);
if (length >= 0)
{
string value = packet.ReadString(length);
ParseMySql(value);
return this;
}
long bufLength = packet.ReadByte();
int negate = 0;
if (bufLength > 0)
negate = packet.ReadByte();
isNull = false;
if (bufLength == 0)
isNull = true;
else if (bufLength == 5)
mValue = new TimeSpan(packet.ReadInteger(4), 0, 0, 0);
else if (bufLength == 8)
mValue = new TimeSpan(packet.ReadInteger(4),
packet.ReadByte(), packet.ReadByte(), packet.ReadByte());
else
mValue = new TimeSpan(packet.ReadInteger(4),
packet.ReadByte(), packet.ReadByte(), packet.ReadByte(),
packet.ReadInteger(4) / 1000000);
if (negate == 1)
mValue = mValue.Negate();
return this;
}
public void Open()
{
// connect to one of our specified hosts
try
{
baseStream = StreamCreator.GetStream(Settings);
#if NET451
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;
}
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 long GetResult(ref long affectedRow, ref long insertedId)
{
try
{
packet = stream.ReadPacket();
}
catch (TimeoutException)
{
// Do not reset serverStatus, allow to reenter, e.g when
// ResultSet is closed.
throw;
}
catch (Exception)
{
serverStatus = 0;
throw;
}
var fieldCount = (long)packet.ReadFieldLength();
if (-1 == fieldCount)
{
string filename = packet.ReadString();
SendFileToServer(filename);
return GetResult(ref affectedRow, ref insertedId);
}
else if (fieldCount == 0)
{
// the code to read last packet will set these server status vars
// again if necessary.
serverStatus &= ~(ServerStatusFlags.AnotherQuery |
ServerStatusFlags.MoreResults);
affectedRow = (int)packet.ReadFieldLength();
insertedId = (long)packet.ReadFieldLength();
serverStatus = (ServerStatusFlags)packet.ReadInteger(2);
warnings += packet.ReadInteger(2);
if (packet.HasMoreData)
{
packet.ReadLenString(); //TODO: server message
}
}
return fieldCount;
}
public void Open()
{
// connect to one of our specified hosts
try
{
baseStream = StreamCreator.GetStream(Settings);
#if NET451
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;
}
IMySqlValue IMySqlValue.ReadValue(MySqlPacket packet, long length, bool nullVal)
{
if (nullVal)
return new MySqlDecimal(true);
string s = String.Empty;
if (length == -1)
s = packet.ReadLenString();
else
s = packet.ReadString(length);
return new MySqlDecimal(s);
}
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);
}
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)
{
MySqlGuid g = new MySqlGuid();
g.isNull = true;
g.OldGuids = OldGuids;
if (!nullVal)
{
if (OldGuids)
return ReadOldGuid(packet, length);
string s = String.Empty;
if (length == -1)
s = packet.ReadLenString();
else
s = packet.ReadString(length);
g.mValue = new Guid(s);
g.isNull = false;
}
return g;
}
