/// <summary>
/// Parses a connection string.
/// </summary>
/// <param name="connectionString">The connection string to parse.</param>
/// <returns>The parsed connection string.</returns>
private string ParseConnectionString(string connectionString)
{
var updatedConnectionString = string.Empty;
bool portProvided = false;
bool isDnsSrv = false;
var connectionOptionsDictionary = connectionString.Split(CONNECTION_DATA_KEY_SEPARATOR)
.Select(item => item.Split(new char[] { CONNECTION_DATA_VALUE_SEPARATOR }, 2))
.Where(item => item.Length == 2)
.ToDictionary(item => item[0], item => item[1]);
var serverOption = MySqlXConnectionStringBuilder.Options.Options.First(item => item.Keyword == SERVER_CONNECTION_OPTION_KEYWORD);
var connecttimeoutOption = MySqlXConnectionStringBuilder.Options.Options.First(item => item.Keyword == CONNECT_TIMEOUT_CONNECTION_OPTION_KEYWORD);
foreach (KeyValuePair <string, string> keyValuePair in connectionOptionsDictionary)
{
// Value is an equal or a semicolon
if (keyValuePair.Value == "=" || keyValuePair.Value == "\"")
{
throw new MySqlException(string.Format(Resources.InvalidConnectionStringValue, (keyValuePair.Value == "\"" ? ";" : "="), keyValuePair.Key));
}
// Key is not server or any of its synonyms.
if (keyValuePair.Key != serverOption.Keyword && !serverOption.Synonyms.Contains(keyValuePair.Key))
{
if ((connecttimeoutOption.Keyword == keyValuePair.Key || connecttimeoutOption.Synonyms.Contains(keyValuePair.Key)) &&
String.IsNullOrWhiteSpace(keyValuePair.Value))
{
throw new FormatException(ResourcesX.InvalidConnectionTimeoutValue);
}
if (keyValuePair.Key == PORT_CONNECTION_OPTION_KEYWORD)
{
portProvided = true;
}
if (keyValuePair.Key == DNS_SRV_CONNECTION_OPTION_KEYWORD)
{
isDnsSrv = Convert.ToBoolean(keyValuePair.Value);
}
updatedConnectionString += $"{keyValuePair.Key}{CONNECTION_DATA_VALUE_SEPARATOR}{keyValuePair.Value}{CONNECTION_DATA_KEY_SEPARATOR}";
continue;
}
// Key is server or one of its synonyms.
var updatedValue = keyValuePair.Value;
if (IsUnixSocket(keyValuePair.Value))
{
updatedValue = NormalizeUnixSocket(keyValuePair.Value);
}
// The value for the server connection option doesn't have a server list format.
if (FailoverManager.ParseHostList(updatedValue, true, false) == 1 && FailoverManager.FailoverGroup == null)
{
updatedConnectionString = $"{SERVER_CONNECTION_OPTION_KEYWORD}{CONNECTION_DATA_VALUE_SEPARATOR}{updatedValue}{CONNECTION_DATA_KEY_SEPARATOR}{updatedConnectionString}";
}
}
// DNS SRV Validation - Port cannot be provided by the user and multihost is not allowed if dns-srv is true
if (isDnsSrv)
{
if (portProvided)
{
throw new ArgumentException(Resources.DnsSrvInvalidConnOptionPort);
}
if (FailoverManager.FailoverGroup != null)
{
throw new ArgumentException(Resources.DnsSrvInvalidConnOptionMultihost);
}
}
// Default port must be added if not provided by the user.
if (FailoverManager.FailoverGroup == null)
{
return(portProvided ? updatedConnectionString : $"{updatedConnectionString}{CONNECTION_DATA_KEY_SEPARATOR}{PORT_CONNECTION_OPTION_KEYWORD}{CONNECTION_DATA_VALUE_SEPARATOR}{X_PROTOCOL_DEFAULT_PORT}");
}
return($"{SERVER_CONNECTION_OPTION_KEYWORD}{CONNECTION_DATA_VALUE_SEPARATOR}{FailoverManager.FailoverGroup.ActiveHost.Host}{CONNECTION_DATA_KEY_SEPARATOR}" +
(!portProvided ? $"{PORT_CONNECTION_OPTION_KEYWORD}{CONNECTION_DATA_VALUE_SEPARATOR}{X_PROTOCOL_DEFAULT_PORT}{CONNECTION_DATA_KEY_SEPARATOR}" : string.Empty) +
updatedConnectionString);
}
/// <summary>
/// Initializes a new instance of the BaseSession class based on the specified anonymous type object.
/// </summary>
/// <param name="connectionData">The connection data as an anonymous type used to create the session.</param>
/// <param name="client">A <see cref="Client"/> object.</param>
/// <exception cref="ArgumentNullException"><paramref name="connectionData"/> is null.</exception>
/// <remarks>
/// <para>Multiple hosts can be specified as part of the <paramref name="connectionData"/>, which enables client-side failover when trying to
/// establish a connection.</para>
/// <para> </para>
/// <para>To assign multiple hosts, create a property similar to the connection string examples shown in
/// <see cref="BaseSession(string)"/>. Note that the value of the property must be a string.
/// </para>
/// </remarks>
internal BaseSession(object connectionData, Client client = null) : this()
{
if (connectionData == null)
{
throw new ArgumentNullException("connectionData");
}
_client = client;
if (client == null)
{
FailoverManager.Reset();
}
var values = Tools.GetDictionaryFromAnonymous(connectionData);
if (!values.Keys.Any(s => s.ToLowerInvariant() == PORT_CONNECTION_OPTION_KEYWORD))
{
values.Add(PORT_CONNECTION_OPTION_KEYWORD, X_PROTOCOL_DEFAULT_PORT);
}
bool hostsParsed = false;
foreach (var value in values)
{
if (!Settings.ContainsKey(value.Key))
{
throw new KeyNotFoundException(string.Format(ResourcesX.InvalidConnectionStringAttribute, value.Key));
}
Settings.SetValue(value.Key, value.Value);
if (!hostsParsed && !string.IsNullOrEmpty(Settings[SERVER_CONNECTION_OPTION_KEYWORD].ToString()))
{
var server = value.Value.ToString();
if (IsUnixSocket(server))
{
Settings.SetValue(value.Key, server = NormalizeUnixSocket(server));
}
FailoverManager.ParseHostList(server, true, false);
if (FailoverManager.FailoverGroup != null && FailoverManager.FailoverGroup.Hosts?.Count > 1)
{
Settings[SERVER_CONNECTION_OPTION_KEYWORD] = null;
}
else if (FailoverManager.FailoverGroup != null)
{
Settings[SERVER_CONNECTION_OPTION_KEYWORD] = FailoverManager.FailoverGroup.Hosts[0].Host;
}
hostsParsed = true;
}
}
this._connectionString = Settings.ToString();
Settings.AnalyzeConnectionString(this._connectionString, true, _isDefaultPort);
if (FailoverManager.FailoverGroup != null && FailoverManager.FailoverGroup.Hosts?.Count > 1)
{
// Multiple hosts were specified.
_internalSession = FailoverManager.AttemptConnectionXProtocol(this._connectionString, out this._connectionString, _isDefaultPort, client);
Settings.ConnectionString = _connectionString;
}
else
{
if (Settings.DnsSrv)
{
var dnsSrvRecords = DnsResolver.GetDnsSrvRecords(Settings.Server);
FailoverManager.SetHostList(dnsSrvRecords.ConvertAll(r => new FailoverServer(r.Target, r.Port, null)),
FailoverMethod.Sequential);
_internalSession = FailoverManager.AttemptConnectionXProtocol(this._connectionString, out this._connectionString, _isDefaultPort, client);
Settings.ConnectionString = this._connectionString;
}
else
{
_internalSession = InternalSession.GetSession(Settings);
}
}
if (!string.IsNullOrWhiteSpace(Settings.Database))
{
DefaultSchema = GetSchema(Settings.Database);
}
}
/// <summary>
/// Parses a connection URI.
/// </summary>
/// <param name="connectionUri">The connection URI to parse.</param>
/// <returns>The connection string representation of the provided <paramref name="connectionUri"/>.</returns>
private string ParseConnectionUri(string connectionUri)
{
Uri uri = null;
string updatedUri = null;
bool parseServerAsUnixSocket = false;
string hierPart = null;
try
{
uri = new Uri(connectionUri);
}
catch (UriFormatException ex)
{
if (ex.Message != "Invalid URI: The hostname could not be parsed.")
{
throw ex;
}
// Identify if multiple hosts were specified.
string[] splitUri = connectionUri.Split('@', '?');
if (splitUri.Length == 1)
{
throw ex;
}
hierPart = splitUri[1];
var schema = string.Empty;
parseServerAsUnixSocket = IsUnixSocket(hierPart);
bool isArray = hierPart.StartsWith("[") && hierPart.Contains("]");
// Remove schema.
if ((!parseServerAsUnixSocket && hierPart.Contains("/")) && !isArray ||
(parseServerAsUnixSocket && hierPart.Contains(")/")) ||
(hierPart.StartsWith("[") && hierPart.Contains("]/") && isArray))
{
schema = hierPart.Substring(hierPart.LastIndexOf('/') + 1);
hierPart = hierPart.Substring(0, hierPart.Length - schema.Length - 1);
}
if (parseServerAsUnixSocket)
{
updatedUri = splitUri[0] + "@localhost" +
(schema != string.Empty ? "/" + schema : string.Empty) +
(splitUri.Length > 2 ? "?" + splitUri[2] : string.Empty);
}
else if (isArray)
{
hierPart = hierPart.Substring(1, hierPart.Length - 2);
int hostCount = FailoverManager.ParseHostList(hierPart, true, true);
if (FailoverManager.FailoverGroup != null)
{
hierPart = FailoverManager.FailoverGroup.ActiveHost.Host;
parseServerAsUnixSocket = IsUnixSocket(FailoverManager.FailoverGroup.ActiveHost.Host);
updatedUri = splitUri[0] + "@" +
(parseServerAsUnixSocket ? "localhost" : hierPart) +
(FailoverManager.FailoverGroup.ActiveHost.Port != -1 ? ":" + FailoverManager.FailoverGroup.ActiveHost.Port : string.Empty) +
(schema != string.Empty ? "/" + schema : string.Empty) +
(splitUri.Length == 3 ? "?" + splitUri[2] : string.Empty);
}
else if (hostCount == 1)
{
updatedUri = splitUri[0] + "@" + hierPart +
(schema != string.Empty ? "/" + schema : string.Empty) +
(splitUri.Length == 3 ? "?" + splitUri[2] : string.Empty);
}
else
{
throw ex;
}
}
}
if (uri == null)
{
uri = updatedUri == null ? new Uri(connectionUri) : new Uri(updatedUri);
}
if (uri.Scheme == DNS_SRV_URI_SCHEME)
{
if (FailoverManager.FailoverGroup != null && FailoverManager.FailoverGroup.Hosts?.Count > 1)
{
throw new ArgumentException(Resources.DnsSrvInvalidConnOptionMultihost);
}
if (!uri.IsDefaultPort)
{
throw new ArgumentException(Resources.DnsSrvInvalidConnOptionPort);
}
if (parseServerAsUnixSocket)
{
throw new ArgumentException(Resources.DnsSrvInvalidConnOptionUnixSocket);
}
}
else if (uri.Scheme != MYSQLX_URI_SCHEME && uri.Scheme != SSH_URI_SCHEME)
{
throw new ArgumentException(string.Format(ResourcesX.DnsSrvInvalidScheme, uri.Scheme));
}
return(ConvertToConnectionString(uri, hierPart, parseServerAsUnixSocket, uri.Scheme == DNS_SRV_URI_SCHEME));
}
/// <include file='docs/MySqlConnection.xml' path='docs/Open/*'/>
public override void Open()
{
if (State == ConnectionState.Open)
{
Throw(new InvalidOperationException(Resources.ConnectionAlreadyOpen));
}
// start up our interceptors
_exceptionInterceptor = new ExceptionInterceptor(this);
commandInterceptor = new CommandInterceptor(this);
SetState(ConnectionState.Connecting, true);
AssertPermissions();
//TODO: SUPPORT FOR 452 AND 46X
// if we are auto enlisting in a current transaction, then we will be
// treating the connection as pooled
if (Settings.AutoEnlist && Transaction.Current != null)
{
driver = DriverTransactionManager.GetDriverInTransaction(Transaction.Current);
if (driver != null &&
(driver.IsInActiveUse ||
!driver.Settings.EquivalentTo(this.Settings)))
{
Throw(new NotSupportedException(Resources.MultipleConnectionsInTransactionNotSupported));
}
}
MySqlConnectionStringBuilder currentSettings = Settings;
try
{
if (Settings.ConnectionProtocol == MySqlConnectionProtocol.Tcp && Settings.IsSshEnabled())
{
_sshHandler = new Ssh(
Settings.SshHostName,
Settings.SshUserName,
Settings.SshPassword,
Settings.SshKeyFile,
Settings.SshPassphrase,
Settings.SshPort,
Settings.Server,
Settings.Port,
false
);
_sshHandler.StartClient();
}
if (!Settings.Pooling || MySqlPoolManager.Hosts == null)
{
FailoverManager.Reset();
if (Settings.DnsSrv)
{
var dnsSrvRecords = DnsResolver.GetDnsSrvRecords(Settings.Server);
FailoverManager.SetHostList(dnsSrvRecords.ConvertAll(r => new FailoverServer(r.Target, r.Port, null)),
FailoverMethod.Sequential);
}
else
{
FailoverManager.ParseHostList(Settings.Server, false);
}
}
// Load balancing && Failover
if (ReplicationManager.IsReplicationGroup(Settings.Server))
{
if (driver == null)
{
ReplicationManager.GetNewConnection(Settings.Server, false, this);
}
else
{
currentSettings = driver.Settings;
}
}
else if (FailoverManager.FailoverGroup != null && !Settings.Pooling)
{
FailoverManager.AttemptConnection(this, Settings.ConnectionString, out string connectionString);
currentSettings.ConnectionString = connectionString;
}
if (Settings.Pooling)
{
if (FailoverManager.FailoverGroup != null)
{
FailoverManager.AttemptConnection(this, Settings.ConnectionString, out string connectionString, true);
currentSettings.ConnectionString = connectionString;
}
MySqlPool pool = MySqlPoolManager.GetPool(currentSettings);
if (driver == null || !driver.IsOpen)
{
driver = pool.GetConnection();
}
ProcedureCache = pool.ProcedureCache;
}
else
{
if (driver == null || !driver.IsOpen)
{
driver = Driver.Create(currentSettings);
}
ProcedureCache = new ProcedureCache((int)Settings.ProcedureCacheSize);
}
}
catch (Exception)
{
SetState(ConnectionState.Closed, true);
throw;
}
SetState(ConnectionState.Open, false);
driver.Configure(this);
if (driver.IsPasswordExpired && Settings.Pooling)
{
MySqlPoolManager.ClearPool(currentSettings);
}
if (!(driver.SupportsPasswordExpiration && driver.IsPasswordExpired))
{
if (!string.IsNullOrEmpty(Settings.Database))
{
ChangeDatabase(Settings.Database);
}
}
// setup our schema provider
_schemaProvider = new ISSchemaProvider(this);
PerfMonitor = new PerformanceMonitor(this);
// if we are opening up inside a current transaction, then autoenlist
// TODO: control this with a connection string option
if (Transaction.Current != null && Settings.AutoEnlist)
{
EnlistTransaction(Transaction.Current);
}
hasBeenOpen = true;
SetState(ConnectionState.Open, true);
}
