Creating a Salesforce Session using a Proxy

<?xml version="1.0" encoding="utf-8"?>
<connectionStrings>
	<add name="core" connectionString="user id=u_sc;password=x;Data Source=trinity;Database=Sitecore_Core" />
	<add name="master" connectionString="user id=u_sc;password=x;Data Source=trinity;Database=Sitecore_Master" />
	<add name="web" connectionString="user id=u_sc;password=x;Data Source=trinity;Database=Sitecore_Web" />
	<add name="S4SConnString" connectionString="S4S:user id=s4s.api@fuseit.com; password=x; token=XoTykMKTCti9mZUZeGw0mF823; environment=Production; proxyserver=192.168.5.124; proxyport=808; proxyusername=sean; proxypassword=y"/>
	<add name="S4SConnStringUI" connectionString="S4S:user id=s4s.api@fuseit.com; password=x; token=XoTykMKTCti9mZUZeGw0mF823; environment=Production; proxyserver=192.168.5.124; proxyport=808; proxyusername=sean; proxypassword=y"/>
</connectionStrings>

Description("This indicates if Proxy settings should be read from the system or not. This takes precedence over other proxy settings."), DisplayName("Proxy Auto Detect"), DefaultValue("True")]
public bool ProxyUseSystem
{
	get
	{
		if (ContainsKey(proxyUseSystemToken))
		{
			return (bool)this[proxyUseSystemToken];
		}
		return false;
	}
	set
	{
		this[proxyUseSystemToken] = value;
	}
}

[DisplayName("Proxy Password"), PasswordPropertyText(true), DefaultValue(""), Description("A password if authentication is to be used for the proxy.")]
public string ProxyPassword
{
	get
	{
		if (ContainsKey(proxyPasswordToken))
		{
			return (string)this[proxyPasswordToken];
		}
		return null;
	}
	set
	{
		this[proxyPasswordToken] = value;
	}
}


/// <summary>
/// The TCP port for the proxy server (defaults to 80).
/// </summary>
[DefaultValue(""),Description("The TCP port for the proxy ProxyServer (default 80)."), DisplayName("Proxy Port")]
public int ProxyPort
{
	get
	{
		if(this.ContainsKey(proxyPortToken))
		{
			int port = 80;
			if (int.TryParse((string)this[proxyPortToken], out port))
			{
				return port;
			}
			else
			{
				Logging.Error(typeof(SalesforceSession), "Failed to parse Proxy Port from [" + this[proxyPortToken] + "]");
			}
		}
		return 80;
	}
	set
	{
		this[proxyPortToken] = value;
	}
}
[DefaultValue(""), DisplayName("Proxy Server"), Description("If a proxy Server is given, then the HTTP request is sent to the proxy instead of the server otherwise specified.")]
public string ProxyServer
{
	get
	{
		if (ContainsKey(proxyServerToken))
		{
			return (string)this[proxyServerToken];
		}
		return null;
	}
	set
	{
		this[proxyServerToken] = value;
	}
}
[Description("The ssl type to use when connecting to the proxy server (default: AUTO)."), DisplayName("Proxy SSL Type"), DefaultValue("")]
internal string ProxySSLType
{
	get;
	set;
}
[DefaultValue(""), DisplayName("Proxy User"), Description("A user name, if authentication is to be used for the proxy.")]
public string ProxyUser
{
	get
	{
		if (ContainsKey(proxyUserNameToken))
		{
			return (string)this[proxyUserNameToken];
		}
		return null;
	}
	set
	{
		this[proxyUserNameToken] = value;
	}
}

public LoginDetails(string connectionString)
{
	if (string.IsNullOrEmpty(connectionString))
	{
		throw new System.Configuration.ConfigurationErrorsException("Null or empty connection string");
	}
	this._connectionStringBuilder = new Data.SalesforceConnectionStringBuilder(connectionString);
}