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//-----------------------------------------------------------------------
// <copyright file="Util.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace OpenIdProviderWebForms.Code {
using System;
using System.Threading;
using System.Threading.Tasks;
using System.Web;
using DotNetOpenAuth.OpenId;
using DotNetOpenAuth.OpenId.Provider;
public static class Util {
public static string ExtractUserName(Uri url) {
return url.Segments[url.Segments.Length - 1];
}
public static string ExtractUserName(Identifier identifier) {
return ExtractUserName(new Uri(identifier.ToString()));
}
public static Identifier BuildIdentityUrl() {
return BuildIdentityUrl(HttpContext.Current.User.Identity.Name);
}
public static Identifier BuildIdentityUrl(string username) {
// This sample Provider has a custom policy for normalizing URIs, which is that the whole
// path of the URI be lowercase except for the first letter of the username.
username = username.Substring(0, 1).ToUpperInvariant() + username.Substring(1).ToLowerInvariant();
return new Uri(HttpContext.Current.Request.Url, HttpContext.Current.Response.ApplyAppPathModifier("~/user.aspx/" + username));
}
internal static void ProcessAuthenticationChallenge(IAuthenticationRequest idrequest) {
if (idrequest.Immediate) {
if (idrequest.IsDirectedIdentity) {
if (HttpContext.Current.User.Identity.IsAuthenticated) {
idrequest.LocalIdentifier = Util.BuildIdentityUrl();
idrequest.IsAuthenticated = true;
} else {
idrequest.IsAuthenticated = false;
}
} else {
string userOwningOpenIdUrl = Util.ExtractUserName(idrequest.LocalIdentifier);
// NOTE: in a production provider site, you may want to only
// respond affirmatively if the user has already authorized this consumer
// to know the answer.
idrequest.IsAuthenticated = userOwningOpenIdUrl == HttpContext.Current.User.Identity.Name;
}
if (idrequest.IsAuthenticated.Value) {
// add extension responses here.
}
} else {
HttpContext.Current.Response.Redirect("~/decide.aspx", false);
}
}
internal static void ProcessAnonymousRequest(IAnonymousRequest request) {
if (request.Immediate) {
// NOTE: in a production provider site, you may want to only
// respond affirmatively if the user has already authorized this consumer
// to know the answer.
request.IsApproved = HttpContext.Current.User.Identity.IsAuthenticated;
if (request.IsApproved.Value) {
// Add extension responses here.
// These would typically be filled in from a user database
}
} else {
HttpContext.Current.Response.Redirect("~/decide.aspx", false);
}
}
internal static Task ToApm(this Task task, AsyncCallback callback, object state) {
if (task == null) {
throw new ArgumentNullException("task");
}
var tcs = new TaskCompletionSource<object>(state);
task.ContinueWith(
t => {
if (t.IsFaulted) {
tcs.TrySetException(t.Exception.InnerExceptions);
} else if (t.IsCanceled) {
tcs.TrySetCanceled();
} else {
tcs.TrySetResult(null);
}
if (callback != null) {
callback(tcs.Task);
}
},
CancellationToken.None,
TaskContinuationOptions.None,
TaskScheduler.Default);
return tcs.Task;
}
}
}
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