I've been using the Azure fluent management APIs (https://github.com/Azure/azure-libraries-for-net) with some success in .NET Core.
However, I want to prompt the user to enter some credentials for a Microsoft account. Those credentials would have access to one or more Azure tenants / subscriptions, so I'd like to be able to use the result to browse and manage resources there.
This is something very close to what I would believe Azure Data Studio does: you can enter some Azure creds, and your resources will appear in the app.
I'm trying to understand the best approach for this. There seem to be a billion sites out there when you talk about Azure AD app registrations, but I haven't found a fruitful specific search query yet. I know I can register an app, get a client ID and client secret. I know I can set it to be usable by organisational accounts in the current tenant, or all tenants.
I can add the "Azure Service Management (delegated permissions : user_impersonation)" permission to my API permissions section for the app, but what's next?
If I use Microsoft.Identity.Client (as in https://learn.microsoft.com/en-us/azure/active-directory/develop/quickstart-v2-netcore-daemon), I run into some questions:
AcquireTokenForClientAsync doesn't prompt the user - I guess because it's getting a token for the app to act with its own permissions?
AcquireTokenOnBehalfOfAsync wants a JWT.. great! I'll pass the one I got from AcquireTokenForClientAsync! Nope, AADSTS70002: Error validating credentials. AADSTS500137: The token issuer doesn't match the api version: A version 1 token cannot be used with the v2 endpoint.
I don't know what scope I want. https://management.azure.com/user_impersonation is apparently invalid.. https://management.azure.com/.default works, but is that right? It's a guess, combo of the former and a .default suffix I found for Graph API scopes online. Any docs on this?
I ultimately get a JWT and tenant ID back. I can't find a way to use a JWT with the Fluent management APIs.. and my account (for instance) is associated with 3 tenants or 5 different tenants / directories - so how do I choose?
That's just what I've tried, the appropriate route might be a different one. In summary: I want a .NET Core Console app to request user credentials, and then get access to the Azure resources they have access to, in order to perform some resource management.
AcquireTokenForClientAsync doesn't prompt the user - I guess because it's getting a token for the app to act with its own permissions?
You are using the OAuth 2.0 client credentials grant to access web-hosted resources by using the identity of an application. This type of grant commonly is used for server-to-server interactions that must run in the background, without immediate interaction with a user .
AADSTS70002: Error validating credentials. AADSTS500137: The token issuer doesn't match the api version: A version 1 token cannot be used with the v2 endpoint.
Azure AD provide two service : Azure AD V1.0 and Azure AD V2.0 . Please refer to Comparing the Azure AD v2.0 endpoint with the v1.0 endpoint . You can't use v1 token to acquire v2's token in a on-behalf-of flow .
AcquireTokenOnBehalfOfAsync wants a JWT.. great! I'll pass the one I got from AcquireTokenForClientAsync
AS pointed above , That function is used to acquire an access token for this application (usually a Web API) from the authority configured in the application, in order to access another downstream protected Web API on behalf of a user using the OAuth 2.0 On-Behalf-Of flow. So you can't use app token which acquire using Client Credential flow .
https://management.azure.com/.default works, but is that right? It's a guess, combo of the former and a .default suffix I found for Graph API scopes online. Any docs on this?
You are using the Azure Active Directory v2.0 and the OAuth 2.0 client credentials flow , when sending a POST request to the /token v2.0 endpoint ,the scope should be :
The value passed for the scope parameter in this request should be the resource identifier (Application ID URI) of the resource you want, affixed with the .default suffix. For the Microsoft Graph example, the value is https://graph.microsoft.com/.default. This value informs the v2.0 endpoint that of all the direct application permissions you have configured for your app, it should issue a token for the ones associated with the resource you want to use.
Please check the Get a tokensection in above document .
I ultimately get a JWT and tenant ID back. I can't find a way to use a JWT with the Fluent management APIs..
AFAIK , currently Azure AD V2.0 apps can use:
Its own API
Microsoft Outlook APIs
Microsoft Graph API
Azure AD V2.0 currently doesn't support Azure management APIs .
So you problem is you need to allows work and school accounts from Azure AD and personal Microsoft accounts (MSA) which works with Azure AD V2.0 , but you can't use Azure management APIs . You can use Azure management APIs in Azure AD V1.0 but it allows only work and school accounts to sign in to your application , unless you invite Microsoft accounts as guest user in Azure AD V1.0 ,but you need to configure to point to the tenant-specific endpoint :https://login.microsoftonline.com/{TenantId_or_Name}). during authentication if you want to login with MSA in v1.0 apps.
Update:
You can use Code flow and azure ad v1.0 endpoint , user will be redirect to AAD's login page and enter their credential. Here is code sample for .net Core .
With Azure AD V1.0 endpoint , requests are sent to an endpoint that multiplexes across all Azure AD tenants: https://login.microsoftonline.com/common . When Azure AD receives a request on the /common endpoint, it signs the user in and, as a consequence, discovers which tenant the user is from. See document here . But in this scenerio ,you can only use work and school accounts(AAD) account to login .
The code sample in your link is using Azure Service Principal for Authentication , no interactive user login . You can use OpenID Connect Owin Middleware for authentication in .net Core applications as shown here .
Related
I have had been struggling to make my Azure Active Directory Oauth 2.0 Client Credentials Flow work with API Management. but I get authenticated via postman too. But in return I do not get any access token just a bunch of HTML. How can I fix this? The settings of the applications are exactly as per the documents including the validation of JWT Policy.
Basically I want my client apps to connect with my azure API's using Oauth 2.o without any consent using provided client id/secret. I'm trying to set this up for now with ECHO API provided out of the box with API Management console.
thanks
Postman Access token Error Screen
To use application permissions with your own API (as opposed to Microsoft Graph), you must first expose the API by defining scopes in the API's app registration in the Azure portal. Then, configure access to the API by selecting those permissions in your client application's app registration. If you haven't exposed any scopes in your API's app registration, you won't be able to specify application permissions to that API in your client application's app registration in the Azure portal.
For an example, if I sent scope parameter with custom name like https://testwebapp.in/.default without configuring same as application ID URI in Azure AD then is an expected behavior and you will get error AADSTS500011.
scope parameter in the request should be the resource identifier (application ID URI) of the resource you want, affixed with the .default suffix. For the Microsoft Graph example, the value is https://graph.microsoft.com/.default. This value tells the Microsoft identity platform that of all the direct application permissions you have configured for your app, the endpoint should issue a token for the ones associated with the resource you want to use.
Reference: https://learn.microsoft.com/en-us/azure/active-directory/develop/v2-oauth2-client-creds-grant-flow#application-permissions
Backgournd:
Our group using Azure AD to authenticate and authorise the resources that belongs to us in Azure. AKA, you need to login by your working ID to get verified it is a person belong to our group. This is how a team member can use the API service we owned.
Issue:
There is suggestion that to add an OAuth 2.0 authorization on top of the API. I get confused here. It is only used internally and protected by Azure AD. And login by Azure AD isn't itself already some kind of OAuth 2.0 authentication?
If the API does not have any protection, that means that anyone can hit the endpoint and get the information from the api. for example, if some random person with a cell phone connected to your wifi network somehow or hardwire laptop, they could query the api directly if there was no authentication/authorization on the endpoint. or if its on azure functions or something, then most likely anyone can access it on the internet.
I'm curious on what you mean by the resources are protected by azure ad. Where exactly did you set this up? if for example you are using an azure function as an api endpoint and you activated azure ad authentication/authorization on the azure function app, then your api layer IS secured and you can access the user tokens in the code. in this case there is nothing further to do.
I am new to D365/PowerApps and wonder if i have a Azure Service, (Azure Functions or WebAPP) that is secured with Azure AD tokens (App Registrations).
Can I get an Access Token to my external services using Azure AD from within a plugin step in d365? How do I get such token on behalf of the context the plugin when running as a user.
You'll need to use Flow and compose a http request to get the token:
https://flow.microsoft.com/en-us/galleries/public/templates/edfa8fde25644f149448c8d8cff44699/call-a-web-service-from-a-powerapp/
Here's a good explanation on how to do it using the REST API:
https://stackoverflow.com/a/36982924/1384539
If I understand your question correct,
You have an Azure function APP or external azure service and that is secured by creating Azure AD App with it's roles delegation and so on.
Now you need Access token for this Azure APP with client ID and Client Secret.
We had this similar thing in Dynamics 365 i.e When we wish to use Dynamics 365 Webapi, We need to create Azure AD App and then provide roles delegation so that this app will have access to Dynamics 365.
In Plugin we can give details with client Id and Secret and then generate Token which will be used for Furthure process during plugin Execution.
Note: Most of these plugins we run under System context.
Here are few examples which will lead you to your desired direction.
Most of the Examples also talk about creating Non-Interactive user in Dynamics but in your case that shall not be needed because you are not communicating with Dynamics via (Azure AD App) rather you communicate with Azure functions or so on.
Link 1
Link 2
Link 3
I am trying to create a multi-tenant application in Azure AD, which can login all users like Microsoft live/hotmail and also get the access permissions to access their management resource apis. I can get work accounts from other domain login but not live account. I get this error-
User account 'mitesh_***#live.com' from identity provider 'live.com' does not exist in tenant 'Default Directory' and cannot access the application '382dfccb-33af-4567-90cd********' in that tenant. The account needs to be added as an external user in the tenant first. Sign out and sign in again with a different Azure Active Directory user account.
I have heard of MSAL v2 endpoint to login both type of accounts, but I heard that this endpoint doesnt support permissions to access Resource management libraries yet.
Is there any way to achieve this with ADAL or any other way?
Thanks,
Mitesh
The azure ad v2.0 endpoint supports both personal Microsoft accounts and work accounts from Azure Active Directory . But the v2.0 endpoint issues access tokens only for:
-The app that requested the token. An app can acquire an access token for itself, if the logical app is composed of several different components or tiers.
-The Outlook Mail, Calendar, and Contacts REST APIs, all of which are located at https://outlook.office.com.
-Microsoft Graph APIs. You can learn more about Microsoft Graph and the data that is available to you.
v2.0 endpoint doesn't support management apis .And azure ad v1.0 endpoint it supports work accounts unless Microsoft accounts are added as an external user in the tenant first . In my opinion , currently there is no other ways or workaround to achieve your requirement .
Is it possible to gain access to the Azure Management APIs through the client ID and secret for a web app?
I have a web app through which i want to be able to manage Azure. I want to do this using the credentials of the application itself so that the current user does not have to be an azure administrator.
I have given the web app the necessary role on my subscriptions and obtained the access token through the client credentials grant flow in AD but i still get an unauthorized.
This is probably because the azure management API has no permission set other than delegated - the access works fine if i use the authorization code grant flow for the logged in user, but thats not what i want.
So to reiterate, if, given a web app that has RBAC to a subscription and is able to obtain an access token from AD, is there any way, without an interactive user, that the web app is able to use the management API??
Yes, you can obtain a token from AAD for a service principal and use that to manage resources as long as that service principal has all the access you need.
Make sure the token you get has a resource/audience of "https://management.azure.com" and is for the tenantId that the subscription is associated with.
You can also see this article from Brady Gaster that explains how to use Azure AD applications to manage Azure Services from an external app : http://www.bradygaster.com/post/using-windows-azure-active-directory-to-authenticate-the-management-libraries
EDIT : Azure AD supports Service to Service calls using OAuth 2.0 client credentials: https://msdn.microsoft.com/en-us/library/azure/dn645543.aspx
Hope this helps,
Julien