public static PayloadData Create(uint statementId, IList<StatementParameter> parameters)
{
var writer = new PayloadWriter();
writer.WriteByte((byte) CommandKind.ExecuteStatement);
writer.WriteUInt32(statementId);
writer.WriteByte(0); // flags == CURSOR_TYPE_NO_CURSOR
writer.WriteUInt32(1); // iteration count is always 1
if (parameters.Count > 0)
{
int parametersProcessed = 0;
while (parametersProcessed < parameters.Count)
{
byte nullBitmap = 0;
for (int i = 0; i < Math.Min(8, parameters.Count - parametersProcessed); i++)
if (parameters[parametersProcessed + i].IsNull)
nullBitmap |= (byte) (1 << i);
writer.WriteByte(nullBitmap);
parametersProcessed += 8;
}
writer.WriteByte((byte) (parameters.Count == 0 ? 0 : 1)); // new parameters bound
foreach (var parameter in parameters)
{
writer.WriteByte((byte) parameter.Type);
writer.WriteByte((byte) (parameter.IsUnsigned ? 0x80 : 0));
}
foreach (var parameter in parameters)
writer.Write(parameter.Data);
}
return new PayloadData(new ArraySegment<byte>(writer.ToBytes()));
}
public static byte[] Create(InitialHandshakePacket handshake, string userName, string password, string database)
{
// TODO: verify server capabilities
var writer = new PayloadWriter();
writer.WriteInt32((int) (
ProtocolCapabilities.Protocol41 |
ProtocolCapabilities.LongPassword |
ProtocolCapabilities.SecureConnection |
ProtocolCapabilities.PluginAuth |
ProtocolCapabilities.PluginAuthLengthEncodedClientData |
ProtocolCapabilities.MultiStatements |
ProtocolCapabilities.MultiResults |
ProtocolCapabilities.PreparedStatementMultiResults |
(string.IsNullOrWhiteSpace(database) ? 0 : ProtocolCapabilities.ConnectWithDatabase)));
writer.WriteInt32(0x40000000);
writer.WriteByte((byte) CharacterSet.Utf8Mb4Binary);
writer.Write(new byte[23]);
writer.WriteNullTerminatedString(userName);
writer.WriteLengthEncodedInteger(20);
var hashedPassword = AuthenticationUtility.HashPassword(handshake.AuthPluginData, 0, password);
writer.Write(hashedPassword);
if (!string.IsNullOrWhiteSpace(database))
writer.WriteNullTerminatedString(database);
writer.WriteNullTerminatedString("mysql_native_password");
return writer.ToBytes();
}
public static PayloadData Create(string user, byte[] authResponse, string schemaName)
{
var writer = new PayloadWriter();
writer.WriteByte((byte) CommandKind.ChangeUser);
writer.WriteNullTerminatedString(user);
writer.WriteByte(checked((byte) authResponse.Length));
writer.Write(authResponse);
writer.WriteNullTerminatedString(schemaName ?? "");
writer.WriteByte((byte) CharacterSet.Utf8Mb4Binary);
writer.WriteByte(0);
writer.WriteNullTerminatedString("mysql_native_password");
return new PayloadData(new ArraySegment<byte>(writer.ToBytes()));
}
private static byte[] CreateConnectionAttributes()
{
var attributesWriter = new PayloadWriter();
attributesWriter.WriteLengthEncodedString("_client_name");
attributesWriter.WriteLengthEncodedString("MySqlConnector");
attributesWriter.WriteLengthEncodedString("_client_version");
attributesWriter.WriteLengthEncodedString(typeof(MySqlSession).GetTypeInfo().Assembly.GetCustomAttribute <AssemblyInformationalVersionAttribute>().InformationalVersion);
try
{
var os = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? "Windows" :
RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ? "Linux" :
RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ? "macOS" : null;
var osDetails = RuntimeInformation.OSDescription;
var platform = RuntimeInformation.ProcessArchitecture.ToString();
if (os != null)
{
attributesWriter.WriteLengthEncodedString("_os");
attributesWriter.WriteLengthEncodedString(os);
}
attributesWriter.WriteLengthEncodedString("_os_details");
attributesWriter.WriteLengthEncodedString(osDetails);
attributesWriter.WriteLengthEncodedString("_platform");
attributesWriter.WriteLengthEncodedString(platform);
}
catch (PlatformNotSupportedException)
{
}
using (var process = Process.GetCurrentProcess())
{
attributesWriter.WriteLengthEncodedString("_pid");
attributesWriter.WriteLengthEncodedString(process.Id.ToString(CultureInfo.InvariantCulture));
}
var connectionAttributes = attributesWriter.ToBytes();
var writer = new PayloadWriter();
writer.WriteLengthEncodedInteger((ulong)connectionAttributes.Length);
writer.Write(connectionAttributes);
return(writer.ToBytes());
}
public static PayloadData Create(uint statementId, IList <StatementParameter> parameters)
{
var writer = new PayloadWriter();
writer.WriteByte((byte)CommandKind.ExecuteStatement);
writer.WriteUInt32(statementId);
writer.WriteByte(0); // flags == CURSOR_TYPE_NO_CURSOR
writer.WriteUInt32(1); // iteration count is always 1
if (parameters.Count > 0)
{
int parametersProcessed = 0;
while (parametersProcessed < parameters.Count)
{
byte nullBitmap = 0;
for (int i = 0; i < Math.Min(8, parameters.Count - parametersProcessed); i++)
{
if (parameters[parametersProcessed + i].IsNull)
{
nullBitmap |= (byte)(1 << i);
}
}
writer.WriteByte(nullBitmap);
parametersProcessed += 8;
}
writer.WriteByte((byte)(parameters.Count == 0 ? 0 : 1)); // new parameters bound
foreach (var parameter in parameters)
{
writer.WriteByte((byte)parameter.Type);
writer.WriteByte((byte)(parameter.IsUnsigned ? 0x80 : 0));
}
foreach (var parameter in parameters)
{
writer.Write(parameter.Data);
}
}
return(new PayloadData(new ArraySegment <byte>(writer.ToBytes())));
}
internal static PayloadWriter CapabilitiesPayload(ConnectionSettings cs, ProtocolCapabilities additionalCapabilities = 0)
{
var writer = new PayloadWriter();
writer.WriteInt32((int)(
ProtocolCapabilities.Protocol41 |
ProtocolCapabilities.LongPassword |
ProtocolCapabilities.SecureConnection |
ProtocolCapabilities.PluginAuth |
ProtocolCapabilities.PluginAuthLengthEncodedClientData |
ProtocolCapabilities.MultiStatements |
ProtocolCapabilities.MultiResults |
ProtocolCapabilities.PreparedStatementMultiResults |
(string.IsNullOrWhiteSpace(cs.Database) ? 0 : ProtocolCapabilities.ConnectWithDatabase) |
(cs.UseAffectedRows ? 0 : ProtocolCapabilities.FoundRows) |
(cs.UseCompression ? ProtocolCapabilities.Compress : ProtocolCapabilities.None) |
additionalCapabilities));
writer.WriteInt32(0x40000000);
writer.WriteByte((byte)CharacterSet.Utf8Mb4Binary);
writer.Write(new byte[23]);
return(writer);
}
