OpenId Connect and Custom Identity Framework - c#

I'm using the Okta example for implementing OpenIdConnect in an Asp.NET 4.6.x MVC web application. The application uses Unity for Dependency Injection and one of the dependencies is a custom set of classes for the Identity Framework. I'm not using the Okta API because the IdP is not actually Okta and I'm assuming there's proprietary stuff in it. So it's all .NET standard libraries for the OpenId portions.
I can walk through the code after clicking login and it will carry me to the IdP and I can log in with my account, and then it will bring me back and I can see all of the information from them for my login. But it doesn't log me in or anything as it does in the example from Okta's GitHub.
Basically I'm wondering if the identity customization is what's interfering with the login and if there's a way to get in the middle of that and specify what I need it to do?
app.UseOpenIdConnectAuthentication(new OpenIdConnectAuthenticationOptions {
ClientId = clientId
, ClientSecret = clientSecret
, Authority = authority
, RedirectUri = redirectUri
, AuthenticationMode = Microsoft.Owin.Security.AuthenticationMode.Passive
, ResponseType = OpenIdConnectResponseType.CodeIdToken
, Scope = OpenIdConnectScope.OpenIdProfile
, PostLogoutRedirectUri = postLogoutRedirectUri
, TokenValidationParameters = new TokenValidationParameters { NameClaimType = "name" }
, Notifications = new OpenIdConnectAuthenticationNotifications {
AuthorizationCodeReceived = async n =>
{
//var tokenClient = new TokenClient($"{authority}/oauth2/v1/token", clientId, clientSecret);
var tokenClient = new TokenClient($"{authority}/connect/token", clientId, clientSecret);
var tokenResponse = await tokenClient.RequestAuthorizationCodeAsync(n.Code, redirectUri);
if (tokenResponse.IsError)
{
throw new Exception(tokenResponse.Error);
}
//var userInfoClient = new UserInfoClient($"{authority}/oauth2/v1/userinfo");
var userInfoClient = new UserInfoClient($"{authority}/connect/userinfo");
var userInfoResponse = await userInfoClient.GetAsync(tokenResponse.AccessToken);
var claims = new List<System.Security.Claims.Claim>();
claims.AddRange(userInfoResponse.Claims);
claims.Add(new System.Security.Claims.Claim("id_token", tokenResponse.IdentityToken));
claims.Add(new System.Security.Claims.Claim("access_token", tokenResponse.AccessToken));
if (!string.IsNullOrEmpty(tokenResponse.RefreshToken))
{
claims.Add(new System.Security.Claims.Claim("refresh_token", tokenResponse.RefreshToken));
}
n.AuthenticationTicket.Identity.AddClaims(claims);
return;
}
, RedirectToIdentityProvider = n =>
{
// If signing out, add the id_token_hint
if (n.ProtocolMessage.RequestType == OpenIdConnectRequestType.Logout)
{
var idTokenClaim = n.OwinContext.Authentication.User.FindFirst("id_token");
if (idTokenClaim != null)
{
n.ProtocolMessage.IdTokenHint = idTokenClaim.Value;
}
}
return Task.CompletedTask;
}
}
});

The token(s) returned by Okta have to be managed by your application in order to perform the login action. The OIDC token returned will need to be verified and validated by you, and then a decision made as to whether to accept the OIDC token. If so, you take action to log the user into your application. Recieving an OIDC token as a result of an OpenID Connect flow doesn't by itself log you into an app. The app needs to do some more work based on the token content before taking a login or reject action.

Related

No accesstoken in populated User (Claimsprincipal)

We're using IdentityServer4 for our IdentityServer and IdentityServer3 for the client (ASP.NET MVC 5).
Everything works (the User/Claimsprincipal is set correctly through OWIN) except I cannot get the access token from the User.
We're using a implicit client which has access to these scopes: openid, profile, testapi
Startup.cs:
app.UseIdentityServerBearerTokenAuthentication(new IdentityServerBearerTokenAuthenticationOptions
{
Authority = identityServerUrl,
RequiredScopes = new[] { "testapi" },
});
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = "Cookies",
});
app.UseOpenIdConnectAuthentication(new OpenIdConnectAuthenticationOptions
{
Authority = identityServerUrl,
ClientId = "testclient",
Scope = "openid profile testapi",
RedirectUri = "http://localhost:49000/signin-oidc",
ResponseType = "id_token token",
SignInAsAuthenticationType = "Cookies",
});
Code to retrieve Access Token (inside one of the controllers):
var user = User as ClaimsPrincipal;
var token = user.FindFirst("access_token");
User is set correctly, but the token is null. I am guessing it is some kind of option that I am missing in the startup.cs, but which?
I think a simpler solution is to use what is allready made availible:
var options = new IdentityServerBearerTokenAuthenticationOptions
{
Authority = authorityUrl,
PreserveAccessToken = true,
};
Then the access token is availible as a claim (named 'token') on the User principle.
I found a solution that does exactly what I want - I'm putting it here for anyone else running into the problem. It costs a dependency on IdentityModel, but that is acceptable in my case:
In Startup.cs, I added:
Notifications = new OpenIdConnectAuthenticationNotifications
{
AuthorizationCodeReceived = async n =>
{
var tokenClient = new TokenClient(identityServerUrl + "/connect/token", clientId, secret);
var tokenResponse = await tokenClient.RequestAuthorizationCodeAsync(n.Code, n.RedirectUri);
HttpContext.Current.Session[HttpUserContext.ACCESS_TOKEN] = tokenResponse.AccessToken;
}
}
To the call to .UseOpenIdConnectAuthentication

Application is not supported over the /common or /consumers endpoints error AD sign in

I hope anyone is able to help me out with this problem
Im trying to get one of the code samples from the Microsoft Graph Api working with a company specific application. After I sign in at my tenant's sign in screen im getting redirected to the application with the following error.
AADSTS90130: Application '{application id}'
(aad name) is not supported over the /common or /consumers
endpoints. Please use the /organizations or tenant-specific endpoint.
In my startup class i've got the following code:
// The graphScopes are the Microsoft Graph permission scopes that are used by this sample: User.Read Mail.Send
private static string appId = ConfigurationManager.AppSettings["ida:AppId"];
private static string appSecret = ConfigurationManager.AppSettings["ida:AppSecret"];
private static string redirectUri = ConfigurationManager.AppSettings["ida:RedirectUri"];
private static string graphScopes = ConfigurationManager.AppSettings["ida:GraphScopes"];
public void ConfigureAuth(IAppBuilder app)
{
app.SetDefaultSignInAsAuthenticationType(CookieAuthenticationDefaults.AuthenticationType);
app.UseCookieAuthentication(new CookieAuthenticationOptions());
app.UseOpenIdConnectAuthentication(
new OpenIdConnectAuthenticationOptions
{
// The `Authority` represents the Microsoft v2.0 authentication and authorization service.
// The `Scope` describes the permissions that your app will need. See https://azure.microsoft.com/documentation/articles/active-directory-v2-scopes/
ClientId = appId,
Authority = "https://login.microsoftonline.com/{tenantid}",
PostLogoutRedirectUri = redirectUri,
RedirectUri = redirectUri,
Scope = "openid email profile offline_access " + graphScopes,
TokenValidationParameters = new TokenValidationParameters
{
ValidateIssuer = false,
// In a real application you would use IssuerValidator for additional checks,
// like making sure the user's organization has signed up for your app.
// IssuerValidator = (issuer, token, tvp) =>
// {
// if (MyCustomTenantValidation(issuer))
// return issuer;
// else
// throw new SecurityTokenInvalidIssuerException("Invalid issuer");
// },
},
Notifications = new OpenIdConnectAuthenticationNotifications
{
AuthorizationCodeReceived = async (context) =>
{
var code = context.Code;
string signedInUserID = context.AuthenticationTicket.Identity.FindFirst(ClaimTypes.NameIdentifier).Value;
TokenCache userTokenCache = new SessionTokenCache(signedInUserID,
context.OwinContext.Environment["System.Web.HttpContextBase"] as HttpContextBase).GetMsalCacheInstance();
ConfidentialClientApplication cca = new ConfidentialClientApplication(
appId,
redirectUri,
new ClientCredential(appSecret),
userTokenCache,
null);
string[] scopes = graphScopes.Split(new char[] { ' ' });
AuthenticationResult result = await cca.AcquireTokenByAuthorizationCodeAsync(code, scopes);
},
AuthenticationFailed = (context) =>
{
context.HandleResponse();
context.Response.Redirect("/Error?message=" + context.Exception.Message);
return Task.FromResult(0);
}
}
});
}
}
In this code I have the tenant-specific id in the sign in url which works for another application with the same sign-in style.
I'm not sure what is wrong so i'm hoping there is someone who can help me out. I've looked at related questions on here but none seem related to this issue.
You're using the v1 Endpoint to register your application via the Azure Portal and set Multi-tenant to false. This will restrict your application to only AAD users from the tenant at which it's registered.
If you want to accept any AAD user, you'll need to enable multiple tenants. This will allow a report AAD tenant to recognize your application and allow users to authenticate.
If you want to accept both AAD and MSA users, you'll need to register your application at https://apps.dev.microsoft.com. You'll also need to refactor your authentication code to use the v2 Endpoint.

Azure AD B2C - Role management [duplicate]

This question already has answers here:
Authorize By Group in Azure Active Directory B2C
(8 answers)
Closed last year.
I have an Asp.NET MVC Application connected with Azure AD B2C.
In the Administrator settings I've created an Administrators Group:
In my code I would like to use [Authorize(Roles = "Administrator")]
With regular Azure Active Directory it was easy to add (just 3 lines of code). But for the Azure AD B2C I cannot find any tutorial or example in the web which is working. Maybe you can tell me what i need to modify.
Here is the ConfigureAuth method of my Startup.Auth.cs
public void ConfigureAuth(IAppBuilder app)
{
app.SetDefaultSignInAsAuthenticationType(CookieAuthenticationDefaults.AuthenticationType);
app.UseCookieAuthentication(new CookieAuthenticationOptions());
app.UseOpenIdConnectAuthentication(
new OpenIdConnectAuthenticationOptions
{
// Generate the metadata address using the tenant and policy information
MetadataAddress = String.Format(AadInstance, Tenant, DefaultPolicy),
// These are standard OpenID Connect parameters, with values pulled from web.config
ClientId = ClientId,
RedirectUri = RedirectUri,
PostLogoutRedirectUri = RedirectUri,
// Specify the callbacks for each type of notifications
Notifications = new OpenIdConnectAuthenticationNotifications
{
RedirectToIdentityProvider = OnRedirectToIdentityProvider,
AuthorizationCodeReceived = OnAuthorizationCodeReceived,
AuthenticationFailed = OnAuthenticationFailed,
},
// Specify the claims to validate
TokenValidationParameters = new TokenValidationParameters
{
NameClaimType = "name"
},
// Specify the scope by appending all of the scopes requested into one string (separated by a blank space)
Scope = $"openid profile offline_access {ReadTasksScope} {WriteTasksScope}"
}
);
}
Azure AD B2C does not yet include Group claims in the token it sends to the application thus you can't follow the same approach as you outlined with Azure AD (which does include group claims in the token).
You can support this feature ask by voting for it in the Azure AD B2C feedback forum: Get user membership groups in the claims with Azure AD B2C
That being said, you can do some extra work in this application to have it manually retrieve these claims the group claims and inject them into the token.
First, register a separate application that'll call the Microsoft Graph to retrieve the group claims.
Go to https://apps.dev.microsoft.com
Create an app with Application Permissions : Directory.Read.All.
Add an application secret by clicking on Generate new password
Add a Platform and select Web and give it any redirect URI, (e.g. https://yourtenant.onmicrosoft.com/groups)
Consent to this application by navigating to: https://login.microsoftonline.com/YOUR_TENANT.onmicrosoft.com/adminconsent?client_id=YOUR_CLIENT_ID&state=12345&redirect_uri=YOUR_REDIRECT_URI
Then, you'll need to add code the following code inside of the OnAuthorizationCodeReceived handler, right after redeeming the code:
var authority = $"https://login.microsoftonline.com/{Tenant}";
var graphCca = new ConfidentialClientApplication(GraphClientId, authority, GraphRedirectUri, new ClientCredential(GraphClientSecret), userTokenCache, null);
string[] scopes = new string[] { "https://graph.microsoft.com/.default" };
try
{
AuthenticationResult authenticationResult = await graphCca.AcquireTokenForClientAsync(scopes);
string token = authenticationResult.AccessToken;
using (var client = new HttpClient())
{
string requestUrl = $"https://graph.microsoft.com/v1.0/users/{signedInUserID}/memberOf?$select=displayName";
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, requestUrl);
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token);
HttpResponseMessage response = await client.SendAsync(request);
var responseString = await response.Content.ReadAsStringAsync();
var json = JObject.Parse(responseString);
foreach (var group in json["value"])
notification.AuthenticationTicket.Identity.AddClaim(new System.Security.Claims.Claim(System.Security.Claims.ClaimTypes.Role, group["displayName"].ToString(), System.Security.Claims.ClaimValueTypes.String, "Graph"));
//TODO: Handle paging.
// https://developer.microsoft.com/en-us/graph/docs/concepts/paging
// If the user is a member of more than 100 groups,
// you'll need to retrieve the next page of results.
}
} catch (Exception ex)
{
//TODO: Handle
throw;
}

Unable to obtain username from WebAPI in ADFS4-OAuth2 OpenID

I am trying to use ADFS Authentication with OAuth to communicate between my webapp and webapi. I am using ADFS4 and have configured application group with Server application and Webapi accordingly. I am trying to receive the userdetails, particularly the username from the webapi controller. Is it possible to pass the username details within the access token passed to webapi. Here is what I did from the Webapp side:
In the webapp controller after adfs authentication,
authContext = new AuthenticationContext(Startup.authority, false);
ClientCredential credential = new ClientCredential(Startup.clientId, Startup.appKey);
string accessToken = null;
bool isAuthenticated = User.Identity.IsAuthenticated; //return true
string username = User.Identity.Name; // returns username
string userId = ClaimsPrincipal.Current.FindFirst(ClaimTypes.Name).Value; // returns username
HttpClient httpClient = new HttpClient();
try
{
result = authContext.AcquireTokenAsync(Startup.apiResourceId, credential).Result;
accessToken = result.AccessToken;
}
catch (AdalException ex)
{
}
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
HttpResponseMessage response = httpClient.GetAsync(Startup.apiResourceId + "/api/ConfApi").Result;
From the Webapi end, in Startup.Auth.cs, I have added these code
public void ConfigureAuth(IAppBuilder app)
{
JwtSecurityTokenHandler.InboundClaimTypeMap.Clear();
app.UseActiveDirectoryFederationServicesBearerAuthentication(
new ActiveDirectoryFederationServicesBearerAuthenticationOptions
{
MetadataEndpoint = ConfigurationManager.AppSettings["ida:AdfsMetadataEndpoint"],
TokenValidationParameters = new TokenValidationParameters() {
SaveSigninToken = true,
ValidAudience = ConfigurationManager.AppSettings["ida:Audience"]
}
});
}
However, within the ConfApi controller, I cannot find any claims with user details.
What can I do to receive user details in the Webapi controller?
Thanks for any help.
Are you actually receiving the claims?
Did you configure claims rules for the web API on the ADFS side?
What did you use for Name - Given-Name, Display-Name etc?
Use something like Fiddler to monitor the traffic. After the OIDC authentication, you should see access tokens, id tokens etc.
Take the token and copy into jwt.io.
This will show you what you are actually receiving.
However, the OWIN classes translate the simple OAuth attributes e.g. "aud" into the claim type URI e.g. http://claims/this-claim so breakpoint and see what is in the claims collection and what type has been assigned to each.
The answer to this is the same answer to the question: MSIS9649: Received invalid OAuth request. The 'assertion' parameter value is not a valid access token
You have to use authorization code flow (instead of client credentials grant flow) to get the server app (web app in this case) to talk to the web API with the user's context. Authorization code flow will pass the claims in the JWT Token. Just make sure you pass thru any claims you need for the web API in the web API's RPT claim issuance transform rules.
Vittorio has a nice post on authorization code flow, although it talks about azure.
In order to use authorization code flow, you need to handle the AuthorizationCodeReceived Event via Notifications on the OpenIdConnectAuthenticationOptions from Startup.ConfigureAuth(IAppBuilder app)
app.UseOpenIdConnectAuthentication(
new OpenIdConnectAuthenticationOptions {
...
Notifications = new OpenIdConnectAuthenticationNotifications {
AuthorizationCodeReceived = async code => {
ClientCredential credential = new ClientCredential(Startup.clientId, Startup.appKey);
AuthenticationContext authContext = new AuthenticationContext(Startup.authority, false);
AuthenticationResult result = await authContext.AcquireTokenByAuthorizationCodeAsync(
code.Code,
new Uri(HttpContext.Current.Request.Url.GetLeftPart(UriPartial.Path)),
credential,
Startup.apiResourceId);
}
}
When you are ready to make the call you acquire your token silently.
var authContext = new AuthenticationContext(Startup.authority, false);
var credential = new ClientCredential(Startup.clientId, Startup.appKey);
var claim = ClaimsPrincipal.Current.FindFirst(ClaimTypes.NameIdentifier).Value;
var userId = new UserIdentifier(claim, UserIdentifierType.UniqueId);
result = await authContext.AcquireTokenSilentAsync(
Startup.apiResourceId,
credential,
userId);
HttpClient httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(
"Bearer",
result.AccessToken);

ADAL JavaScript: Adding additional claims (ADAL JS)

I ran the ADAL JS sample SPA project from Github against my Azure AD.
That works well, but I want to add claims to the token after authentication.
In the SPA sample, you add middle-ware as follows:
app.UseWindowsAzureActiveDirectoryBearerAuthentication(
new WindowsAzureActiveDirectoryBearerAuthenticationOptions
{
Audience = ConfigurationManager.AppSettings["ida:Audience"],
Tenant = ConfigurationManager.AppSettings["ida:Tenant"]
});
From here, do you have to add additional OAuth middleware to get access to something like Notifications to get to the ClaimsIdentity and AddClaim?
You can use the TokenValidationParamenters. See ValidateToken or TokenValidationParameters.CreateClaimsIdentity
I found a great sample that handles exactly this... the magic happens inside Provider = new OAuthBearerAuthenticationProvider.
You see that additional claims are added to identity.
// Add bearer token authentication middleware.
app.UseWindowsAzureActiveDirectoryBearerAuthentication(
new WindowsAzureActiveDirectoryBearerAuthenticationOptions
{
// The id of the client application that must be registered in Azure AD.
TokenValidationParameters = new TokenValidationParameters { ValidAudience = clientId },
// Our Azure AD tenant (e.g.: contoso.onmicrosoft.com).
Tenant = tenant,
Provider = new OAuthBearerAuthenticationProvider
{
// This is where the magic happens. In this handler we can perform additional
// validations against the authenticated principal or modify the principal.
OnValidateIdentity = async context =>
{
try
{
// Retrieve user JWT token from request.
var authorizationHeader = context.Request.Headers["Authorization"].First();
var userJwtToken = authorizationHeader.Substring("Bearer ".Length).Trim();
// Get current user identity from authentication ticket.
var authenticationTicket = context.Ticket;
var identity = authenticationTicket.Identity;
// Credential representing the current user. We need this to request a token
// that allows our application access to the Azure Graph API.
var userUpnClaim = identity.FindFirst(ClaimTypes.Upn);
var userName = userUpnClaim == null
? identity.FindFirst(ClaimTypes.Email).Value
: userUpnClaim.Value;
var userAssertion = new UserAssertion(
userJwtToken, "urn:ietf:params:oauth:grant-type:jwt-bearer", userName);
// Credential representing our client application in Azure AD.
var clientCredential = new ClientCredential(clientId, applicationKey);
// Get a token on behalf of the current user that lets Azure AD Graph API access
// our Azure AD tenant.
var authenticationResult = await authenticationContext.AcquireTokenAsync(
azureGraphApiUrl, clientCredential, userAssertion).ConfigureAwait(false);
// Create Graph API client and give it the acquired token.
var activeDirectoryClient = new ActiveDirectoryClient(
graphApiServiceRootUrl, () => Task.FromResult(authenticationResult.AccessToken));
// Get current user groups.
var pagedUserGroups =
await activeDirectoryClient.Me.MemberOf.ExecuteAsync().ConfigureAwait(false);
do
{
// Collect groups and add them as role claims to our current principal.
var directoryObjects = pagedUserGroups.CurrentPage.ToList();
foreach (var directoryObject in directoryObjects)
{
var group = directoryObject as Group;
if (group != null)
{
// Add ObjectId of group to current identity as role claim.
identity.AddClaim(new Claim(identity.RoleClaimType, group.ObjectId));
}
}
pagedUserGroups = await pagedUserGroups.GetNextPageAsync().ConfigureAwait(false);
} while (pagedUserGroups != null);
}
catch (Exception e)
{
throw;
}
}
}
});

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