/// <summary>
/// Authenticates the user with the specified AD FS endpoint and
/// yields the SAML response data for subsequent parsing.
/// </summary>
/// <param name="identityProvider">
/// The https endpoint of the federated identity provider.
/// </param>
/// <param name="credentials">
/// Credentials for the call. If null, the user's default network credentials
/// will be used in a temporary impersonation context.
/// </param>
/// <param name="authenticationType">
/// The authentication type to be used with the endpoint. Valid values are 'NTLM',
/// 'Digest', 'Kerberos' and 'Negotiate'.
/// </param>
/// <param name="proxySettings">Null or configured proxy settings for the HTTPS call.</param>
/// <returns>The response data from a successful authentication request.</returns>
public string Authenticate(Uri identityProvider, ICredentials credentials, string authenticationType, WebProxy proxySettings)
{
string responseStreamData = null;
ImpersonationState impersonationState = null;
try
{
if (credentials != null)
{
var networkCredentials = credentials.GetCredential(identityProvider, authenticationType);
impersonationState = ImpersonationState.Impersonate(networkCredentials);
}
using (var response = QueryProvider(identityProvider, authenticationType, proxySettings))
{
using (var reader = new StreamReader(response.GetResponseStream()))
{
responseStreamData = reader.ReadToEnd();
}
}
}
catch (Exception e)
{
throw new AdfsAuthenticationControllerException(e.ToString(), e);
}
finally
{
if (impersonationState != null)
{
impersonationState.Dispose();
}
}
return(responseStreamData);
}
/// <summary>
/// Authenticates the user with the specified AD FS endpoint and
/// yields the SAML response data for subsequent parsing.
/// </summary>
/// <param name="identityProvider">
/// The https endpoint of the federated identity provider.
/// </param>
/// <param name="credentials">
/// Credentials for the call. If null, the user's default network credentials
/// will be used in a temporary impersonation context.
/// </param>
/// <param name="authenticationType">
/// The authentication type to be used with the endpoint. Valid values are 'NTLM',
/// 'Digest', 'Kerberos' and 'Negotiate'.
/// </param>
/// <returns>The response data from a successful authentication request.</returns>
public string Authenticate(Uri identityProvider, ICredentials credentials, string authenticationType)
{
string responseStreamData = null;
ImpersonationState impersonationState = null;
try
{
if (credentials != null)
{
var networkCredentials = credentials.GetCredential(identityProvider, authenticationType);
impersonationState = ImpersonationState.Impersonate(networkCredentials);
}
using (var response = QueryProvider(identityProvider, authenticationType))
{
using (var reader = new StreamReader(response.GetResponseStream()))
{
responseStreamData = reader.ReadToEnd();
}
}
}
catch (Exception e)
{
var sb = new StringBuilder(e.Message);
if (e.InnerException != null)
{
sb.AppendFormat("(Inner exception '{0}')", e.InnerException.Message);
}
throw new AdfsAuthenticationControllerException(sb.ToString(), e);
}
finally
{
if (impersonationState != null)
{
impersonationState.Dispose();
}
}
return(responseStreamData);
}