/// <summary>
/// Creates a proxy server from the server in the given connection string using the default construction parameters and starts the proxy
/// </summary>
/// <param name="connectionString">Connection string to the server to proxy</param>
/// <param name="newConnectionString">Connection string to the proxy server (using the same parameters as <paramref name="connectionString"/>)</param>
/// <returns>The created and started proxy server</returns>
public static ProxyServer CreateAndStartProxy(string connectionString, out string newConnectionString)
{
// Build builders
SqlConnectionStringBuilder connStringbuilder = new SqlConnectionStringBuilder(connectionString);
DataSourceBuilder dataSourceBuilder = new DataSourceBuilder(connStringbuilder.DataSource);
// Setup proxy
Task<System.Net.IPHostEntry> ipEntryTask = Dns.GetHostEntryAsync(dataSourceBuilder.ServerName);
ipEntryTask.Wait();
System.Net.IPHostEntry serverIpEntry = ipEntryTask.Result;
ProxyServer proxy = new ProxyServer();
proxy.RemoteEndpoint = new IPEndPoint(serverIpEntry.AddressList[0], dataSourceBuilder.Port ?? 1433);
proxy.Start();
// Switch connection over
dataSourceBuilder.Protocol = "tcp";
dataSourceBuilder.ServerName = "127.0.0.1";
dataSourceBuilder.Port = proxy.LocalPort;
connStringbuilder.DataSource = dataSourceBuilder.ToString();
connStringbuilder.Remove("Network Library");
newConnectionString = connStringbuilder.ToString();
return proxy;
}
private static void PrepareConnectionStrings(string originalString, out string tcpString, out string tcpMarsString, out string npString, out string npMarsString)
{
SqlConnectionStringBuilder connBuilder = new SqlConnectionStringBuilder(originalString);
DataSourceBuilder sourceBuilder = new DataSourceBuilder(connBuilder.DataSource);
sourceBuilder.Protocol = null;
// TCP
connBuilder.DataSource = sourceBuilder.ToString();
connBuilder.MultipleActiveResultSets = false;
tcpString = connBuilder.ConnectionString;
// TCP + MARS
connBuilder.MultipleActiveResultSets = true;
tcpMarsString = connBuilder.ConnectionString;
// Named Pipes
sourceBuilder.Port = null;
connBuilder.DataSource = "np:" + sourceBuilder.ToString();
connBuilder.MultipleActiveResultSets = false;
npString = connBuilder.ConnectionString;
// Named Pipes + MARS
connBuilder.MultipleActiveResultSets = true;
npMarsString = connBuilder.ConnectionString;
}
