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//-----------------------------------------------------------------------
// <copyright file="HomeController.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.OpenIdOfflineProvider.Controllers {
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using System.Web.Http;
using DotNetOpenAuth.Logging;
using Validation;
public class HomeController : ApiController {
private static readonly ILog Logger = LogProvider.GetCurrentClassLogger();
public HttpResponseMessage Get() {
Logger.Info("Discovery on OP Identifier detected.");
var opEndpoint = this.Url.Link("default", new { controller = "provider" });
var opEndpointUri = new Uri(opEndpoint);
return new HttpResponseMessage() {
Content = new StringContent(GenerateXrdsOPIdentifierDocument(opEndpointUri, Enumerable.Empty<string>()), Encoding.UTF8, "application/xrds+xml"),
};
}
/// <summary>
/// Generates the OP Identifier XRDS document.
/// </summary>
/// <param name="providerEndpoint">The provider endpoint.</param>
/// <param name="supportedExtensions">The supported extensions.</param>
/// <returns>The content of the XRDS document.</returns>
private static string GenerateXrdsOPIdentifierDocument(Uri providerEndpoint, IEnumerable<string> supportedExtensions) {
Requires.NotNull(providerEndpoint, "providerEndpoint");
Requires.NotNull(supportedExtensions, "supportedExtensions");
const string OPIdentifierDiscoveryFormat = @"<xrds:XRDS
xmlns:xrds='xri://$xrds'
xmlns:openid='http://openid.net/xmlns/1.0'
xmlns='xri://$xrd*($v*2.0)'>
<XRD>
<Service priority='10'>
<Type>http://specs.openid.net/auth/2.0/server</Type>
{1}
<URI>{0}</URI>
</Service>
</XRD>
</xrds:XRDS>";
string extensions = string.Join(
"\n\t\t\t",
supportedExtensions.Select(ext => "<Type>" + ext + "</Type>").ToArray());
return string.Format(
OPIdentifierDiscoveryFormat,
providerEndpoint.AbsoluteUri,
extensions);
}
}
}
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