using System.Linq;

using System.Web;

using SAML2.Config;

using SAML2.Exceptions;

namespace SAML2.Protocol

{

/// <summary>

/// Common Domain Cookie reader endpoint

/// </summary>

public class Saml20CDCReader : AbstractEndpointHandler

{

/// <summary>

/// Enables processing of HTTP Web requests by a custom HttpHandler that implements the <see cref="T:System.Web.IHttpHandler"/> interface.

/// </summary>

/// <param name="context">An <see cref="T:System.Web.HttpContext"/> object that provides references to the intrinsic server objects (for example, Request, Response, Session, and Server) used to service HTTP requests.</param>

public override void ProcessRequest(HttpContext context)

{

Logger.DebugFormat("{0}.{1} called", GetType(), "ProcessRequest()");

var config = Saml2Config.Current;

if (config == null)

{

throw new Saml20Exception("Missing saml2 config section in web.config.");

}

var endp = config.ServiceProvider.Endpoints.FirstOrDefault(ep => ep.Type == EndpointType.SignOn);

if (endp == null)

{

throw new Saml20Exception("Signon endpoint not found in configuration");

}

var returnUrl = config.ServiceProvider.Server + endp.LocalPath + "?r=1";

var samlIdp = context.Request.Cookies[CommonDomainCookie.CommonDomainCookieName];

if (samlIdp != null)

{

returnUrl += "&_saml_idp=" + HttpUtility.UrlEncode(samlIdp.Value);

Logger.DebugFormat(TraceMessages.CommonDomainCookieReceived, samlIdp.Value);

Logger.Debug(TraceMessages.CommonDomainCookieRedirect);

}

else

{

Logger.DebugFormat(TraceMessages.CommonDomainCookieRedirectNotFound, returnUrl);

}

context.Response.Redirect(returnUrl);

}

}

}