docs/en/Community-Articles/2020-04-27-Use-Azure-Active-Directory-Authentication-for-MVC-Razor-Page-Applications/POST.md
This guide demonstrates how to integrate AzureAD to an ABP application that enables users to sign in using OAuth 2.0 with credentials from Azure Active Directory.
Adding Azure Active Directory is pretty straightforward in ABP framework. Couple of configurations needs to be done correctly.
Two different alternative approaches for AzureAD integration will be demonstrated for better coverage.
There is no difference in functionality between these approaches. AddAzureAD is an abstracted way of OpenIdConnection (source) with predefined cookie settings.
However there are key differences in integration to ABP applications because of default configured signin schemes which will be explained below.
If you don't want to use an extra nuget package in your application, you can use the straight default OpenIdConnect which can be used for all OpenId connections including AzureAD external authentication.
You don't have to use appsettings.json configuration but it is a good practice to set AzureAD information in the appsettings.json.
To get the AzureAD information from appsettings.json, which will be used in OpenIdConnectOptions configuration, simply add a new section to appsettings.json located in your .Web project:
"AzureAd": {
"Instance": "https://login.microsoftonline.com/",
"TenantId": "<your-tenant-id>",
"ClientId": "<your-client-id>",
"Domain": "domain.onmicrosoft.com",
"CallbackPath": "/signin-azuread-oidc"
}
Then, In your .Web project; you can modify the ConfigureAuthentication method located in your ApplicationWebModule with the following:
private void ConfigureAuthentication(ServiceConfigurationContext context, IConfiguration configuration)
{
context.Services.AddAuthentication()
... //Omitted other third party configurations
.AddOpenIdConnect("AzureOpenId", "Azure Active Directory OpenId", options =>
{
options.Authority = "https://login.microsoftonline.com/" + configuration["AzureAd:TenantId"] + "/v2.0/";
options.ClientId = configuration["AzureAd:ClientId"];
options.ResponseType = OpenIdConnectResponseType.CodeIdToken;
options.CallbackPath = configuration["AzureAd:CallbackPath"];
options.ClientSecret = configuration["AzureAd:ClientSecret"];
options.RequireHttpsMetadata = false;
options.SaveTokens = true;
options.GetClaimsFromUserInfoEndpoint = true;
options.Scope.Add("email");
options.ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "sub");
});
}
Don't forget to:
- Add
options.Scope.Add("email");since default signin scheme isAzureADOpenID.- Add
options.ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "sub");. Mapping this to ClaimTypes.NameIdentifier is important since default SignIn Manager behavior uses this claim type for external login information.
And that's it, integration is completed. Keep on mind that you can connect any other external authentication providers.
With .Net 5.0, AzureAd is marked obsolete and will not be supported in the near future. However its expanded functionality is available in microsoft-identity-web packages.
Add (or replace with) the new nuget package Microsoft.Identity.Web nuget package](https://www.nuget.org/packages/Microsoft.Identity.Web/).
In your .Web project; you update the ConfigureAuthentication method located in your ApplicationWebModule with the following while having the AzureAd appsettings section as defined before:
private void ConfigureAuthentication(ServiceConfigurationContext context, IConfiguration configuration)
{
context.Services.AddAuthentication()
... //Omitted other third party configurations
.AddMicrosoftIdentityWebApp(configuration.GetSection("AzureAd"));
context.Services.Configure<OpenIdConnectOptions>(OpenIdConnectDefaults.AuthenticationScheme, options =>
{
options.Authority = "https://login.microsoftonline.com/" + configuration["AzureAd:TenantId"] + "/v2.0/";
options.ClientId = configuration["AzureAd:ClientId"];
options.ResponseType = OpenIdConnectResponseType.CodeIdToken;
options.CallbackPath = configuration["AzureAd:CallbackPath"];
options.ClientSecret = configuration["AzureAd:ClientSecret"];
options.RequireHttpsMetadata = false;
options.SaveTokens = false;
options.GetClaimsFromUserInfoEndpoint = true;
options.SignInScheme = IdentityConstants.ExternalScheme;
options.ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "sub");
});
}
And that's all to add new Microsoft-Identity-Web.
Don't forget to:
- Add
options.SignInScheme = IdentityConstants.ExternalSchemesince default signin scheme isAzureADOpenID.- Add
options.ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "sub");. Mapping this to ClaimTypes.NameIdentifier is important since default SignIn Manager behavior uses this claim type for external login information.
Keep in mind that Microsoft-Identity-Web is relatively new and keeps getting new enhancements, features and documentation.
This approach uses the most common way to integrate AzureAD by using the Microsoft AzureAD UI nuget package.
If you choose this approach, you will need to install Microsoft.AspNetCore.Authentication.AzureAD.UI package to your .Web project. Also, since AddAzureAD extension uses configuration binding, you need to update your appsettings.json file located in your .Web project.
appsettings.jsonYou need to add a new section to your appsettings.json which will be binded to configuration when configuring the OpenIdConnectOptions:
"AzureAd": {
"Instance": "https://login.microsoftonline.com/",
"TenantId": "<your-tenant-id>",
"ClientId": "<your-client-id>",
"Domain": "domain.onmicrosoft.com",
"CallbackPath": "/signin-azuread-oidc"
}
Important configuration here is the CallbackPath. This value must be the same with one of your Azure AD-> app registrations-> Authentication -> RedirectUri.
Then, you need to configure the OpenIdConnectOptions to complete the integration.
In your .Web project, locate your ApplicationWebModule and modify ConfigureAuthentication method with the following:
private void ConfigureAuthentication(ServiceConfigurationContext context, IConfiguration configuration)
{
context.Services.AddAuthentication()
... //Omitted other third party configurations
.AddAzureAD(options => configuration.Bind("AzureAd", options));
context.Services.Configure<OpenIdConnectOptions>(AzureADDefaults.OpenIdScheme, options =>
{
options.Authority = options.Authority + "/v2.0/";
options.ClientId = configuration["AzureAd:ClientId"];
options.CallbackPath = configuration["AzureAd:CallbackPath"];
options.ResponseType = OpenIdConnectResponseType.CodeIdToken;
options.RequireHttpsMetadata = false;
options.TokenValidationParameters.ValidateIssuer = false;
options.GetClaimsFromUserInfoEndpoint = true;
options.SaveTokens = true;
options.SignInScheme = IdentityConstants.ExternalScheme;
options.Scope.Add("email");
options.ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "sub");
});
}
Don't forget to:
- Add
.AddAzureAD(options => configuration.Bind("AzureAd", options))after.AddAuthentication(). This binds your AzureAD appsettings and easy to miss out.- Add
options.ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "sub");. Mapping this to ClaimTypes.NameIdentifier is important since default SignIn Manager behavior uses this claim type for external login information.- Add
options.SignInScheme = IdentityConstants.ExternalSchemesince default signin scheme isAzureADOpenID.- Add
options.Scope.Add("email")if you are using v2.0 endpoint of AzureAD since v2.0 endpoint doesn't return the
You are done and integration is completed.
You can find the source code of the completed example here.
Help! GetExternalLoginInfoAsync returns null! (Using obsolute AddAzureAD)
There can be 2 reasons for this;
You are trying to authenticate against wrong scheme. Check if you set SignInScheme to IdentityConstants.ExternalScheme:
options.SignInScheme = IdentityConstants.ExternalScheme;
Your ClaimTypes.NameIdentifier is null. Check if you added claim mapping:
JwtSecurityTokenHandler.DefaultInboundClaimTypeMap.Clear();
JwtSecurityTokenHandler.DefaultInboundClaimTypeMap.Add("sub", ClaimTypes.NameIdentifier);
Help! GetExternalLoginInfoAsync returns null! (Using AddMicrosoftIdentityWebAppAuthentication)
Help! I am getting System.ArgumentNullException: Value cannot be null. (Parameter 'userName') error!
This occurs when you use Azure Authority v2.0 endpoint without requesting email scope. Abp checks unique email to create user. Simply add
options.Scope.Add("email");
to your openid configuration.
Help! I keep getting AADSTS50011: The reply URL specified in the request does not match the reply URLs configured for the application error!
If you set your CallbackPath in appsettings as:
"AzureAd": {
...
"CallbackPath": "/signin-azuread-oidc"
}
your Redirect URI of your application in azure portal must be <u>with domain</u> like https://localhost:44320/signin-azuread-oidc, not only /signin-azuread-oidc.
Help! I keep getting AADSTS700051: The response_type 'token' is not enabled for the application. error!
Help! I keep getting AADSTS7000218: The request body must contain the following parameter: 'client_assertion' or 'client_secret error!
This error occurs when you request code along with id_token. You need to add client secret on azure portal app registrations, under Certificates & secrets menu. Afterwards, you need to add openid configuration option like:
options.ClientSecret = "Value of your secret on azure portal";
How can I debug/watch which claims I get before they get mapped?
You can add a simple event under openid configuration to debug before mapping like:
options.Events.OnTokenValidated = (async context =>
{
var claimsFromOidcProvider = context.Principal.Claims.ToList();
await Task.CompletedTask;
});
I get page not found error on redirection to https://login.live.com/oauth20_authorize.srf?!
JwtSecurityTokenHandler.DefaultInboundClaimTypeMap.Clear(); and added sub claim mapping in ClaimActions rather than global mapping.AddMicrosoftIdentityWebAppAuthentication to AddMicrosoftIdentityWebApp.