I implemented Microsoft login by referring to this Documentation. I am able to successfully get the Access token and call the Microsoft Graph API.
But when I created the App registration in the Azure portal. I came across the "Certificates and Secrets" Tab.
So I created a sample secret for my demo application as mentioned in the below screenshot.
But I am not able to find the exact use Case of this Secret variable. Is it used to authorize our Backend Node-JS server (Apis) or anything like that?.
It will be very helpful if anyone provided a sample use case with an example or any documentation reference. As I am completely new to Azure AD.
Thanks in Advance
The client secret is the password of the service principal. Using a certificate would be an alternative way to authenticate the SP.
https://learn.microsoft.com/en-us/azure/active-directory/develop/howto-create-service-principal-portal#authentication-two-options
As per MS Document,
The application needs a client secret to prove its identity when
requesting a token.
This will help the application to be more secure.
Please refer Auth Code flow as an example reference. Here in first we need to request for a code in a get request and after receiving the code from the identity server then we request for an access token in a post request by adding client secret and code in the request. This allows the third person to can't figure out what the secret and code is, hence he can't bypass the security.
Related
I have created an WebApp in Azure with Azure Authentication enabled. I want to access to this web app using client secret as described here.
So I used the same script as in the answer but I have an error on the last invoke-RestMethod :
invoke-RestMethod : {"message":"Missing id token. Unauthorized."}
How to fix this issue ? FYI My $authenticationToken at the end is
authenticationToken : eyJhbGci...
user : #{userId=sid:dcc5f...7f37ec9}
Any help will be much appreciated.
In the post that you link to, you use grant_type=client_credentials, meaning that you use the clients credentials flow.
Using this flow, you have no id-token because there is no user involved. This flow/grant-type is only for machine-to-machine communication.
Also, important about id-token (if you are using the code flow), you are not supposed to pass the Id-token to other services. If you receive one, then you typically use it to create a local user session.
I try to integrate with Microsoft Teams like get class, add class ...
I have access as admin to Teams, and I get tenant id and client id, but require redirect_uri. I don't know what thas mean ? I can put a http://localhost ..? and how to do this , right now I download xammp ...
I use postman to get and post api , I need a brief step and information to do this, I look to official documentation of Microsoft Teams I don't understand all think so I need a good programmer to help understand every step.
Regards
To access any protected resource like Microsoft Graph API, you need to register in Azure AD, get a token. During the app registration you need to specify the Redirect URI/reply URL; it's the location where the authorization server sends the user once the app has been successfully authorized and granted an authorization code or access token. Authorization server sends the code or token to the redirect URI, so it's important you register the correct location as part of the app registration process. Here are the steps.
I've got a SPA application and an associated API from which it gets its data. (Aurelia and Nodejs)
I have recently worked out the Authentication on the SPA so that it uses MSAL to authenticate users against our company's AAD and is able to retrieve a token that the app can then use to access the MS Graph as well.
However, I also want my API to authenticate against the AAD. What I'd like is for the API to be able to accept the token from the SPA client.
While I am able to send the token from the client to the API (Authorization: 'Bearer'...) I'm not sure what to do with it on the server side to then verify with the identity provider that the token is valid.
For the most part, I don't want the API to have UI concerns (i.e. an authentication/login screen). It should simply reject any requests that do not carry the correct token.
I hope to eventually have both client and server apps being hosted as App Services on Azure, but for the time being they are hosted internally. I think there is a way to ensure the solution works regardless of where the apps are hosted.
Thanks for your help!
I am not sure I understand the relationship between the title and the body of the question: I will answer the body :)
In https://azure.microsoft.com/en-us/resources/samples/active-directory-b2c-javascript-msal-singlepageapp/ you can see an example of web API token validation in Node JS. The service side logic just needs to be adjusted to point to the Azure AD tenant you are using.
The above will work regardless of where the API is hosted, given that the parameters being validated are all about logical identifiers.
I have a REST API, written with express directly. Nowhere in it do I use session, and authentification is for now done using JWT.
However, I dislike having to handle, save and secure user's credentials, that is when I heard about Azure Active Directory.
Adding passport to my app was easy enought, but that's when trouble started.
First, I had to search what strategy I needed, and all of them seems to require the server to maintain sessions/remember who is logged in, all the while using JWT internally. That seems contradictory, JWT is supposed to remove the need of maintaining session.
Finally, I found this MS example which use the Bearer strategy without session.
After setting it up (changing the config file for the right tenant, client ID, changing the routes for a test app more representative of my API), I tried to use them. The protection work well since I am indeed "Unauthorized". But how do I get a valid token to send?
The MSDN guide that use that quickstart don't mention it at all, just redirecting to the AAD library for Android or iOS, implicitely telling me to develop a test app in another language when I just want a crude tool to test if my test server work at all!
That is especially frustrating since I am pretty sure it is "just" a series of HTTP(S) request on the tenant, and the call to the api with the token attached, but I can't find anything to do just that.
/!\: I know asking for something as vague as "How can I do that" isn't a good question, and this question isn't one. What I am asking is why I couldn't find some tools like POSTMan that implement OAuth and allow to quickly test and debug a OAuth protected API. What are the reason that push MSDN to tell me to write a custom tool myself instead of providing a barebone one?
The code sample you mentioned in the post is using the Azure AD V2.0 endpoint. We can use OAuth 2.0 code grant and client credentials flows to acquire the token from this endpoint.
To compose the OAuth 2.0 request directly you can refer the links below:
v2.0 Protocols - OAuth 2.0 Authorization Code Flow
Azure Active Directory v2.0 and the OAuth 2.0 client credentials flow
In addition, the access tokens issued by the v2.0 endpoint can be consumed only by Microsoft Services. Your apps shouldn't need to perform any validation or inspection of access tokens for any of the currently supported scenarios. You can treat access tokens as completely opaque. They are just strings that your app can pass to Microsoft in HTTP requests(refer here).
If you want to protect the custom web API with Azure AD, you can use the Azure AD v1.0 endpoint.
For getting a valid token to send to your API, you'll need to do an auth request to login.microsoftonline.com and get an access token (in the JWT format). Then you can send this token to your api in the http body: "Bearer ey...".
If you want a full sample with a client app that hits that API sample you tried:
Dashboard w/ all the samples for Azure AD Converged Apps
Simple Windows Desktop App
Angular SPA
Node Web API
so far I've not been able to get this working with the bot framework. I spent all day but only managed to get .net api example (https://github.com/AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnet) working with AD B2C. I'm not sure where it grabs the bearer token that I want to pass to BotUserData...
I've tried following https://azure.microsoft.com/en-us/blog/bot-framework-made-better-with-azure/
but in reality the solution does not build successfully and I've resorted to just taking code from there and into my bot framework sample template....however, when it asks me to login through MS and I do, I am not able to proceed and it doesn't seem like that blog is using the AD B2C policies.
so how do you integrate AD B2C with Bot Framework? Is it possible to call /Account/SignIn URL from bot framework to authenticate the user? Afterwards, how would you capture the token and pass it to BotUserData?
You might want to take a look to the Facebook Auth sample to get an idea of a potential flow for the Auth scenario. For Azure AD, you need to do a similar flow.
Let's say your user send a "Login" message to your bot. The bot should respond with an auth URL and ask the user to login to the service using that URL. You can use the GetAuthorizationRequestURL method of ADAL for that.
Then you will have a Web API which will basically expose an endpoint that will be the reply URL of Azure AD. Once the users completes the login, a message will be posted to your Web API where you will be able to get the authorization code and perform the calls to get the Access Token. After that, you can just do the same they are doing in the Facebook Sample Web API which involves resuming the conversation with the Bot, sending a message with the access token (so it can be persisted in the PerUserInConversationData bag (check this line of code).
After that you have the access token available to perform any call that requires an access token.
Update
There are two new samples that you might want to take a look since they are implementing the workflow being discussed.
GraphBot from the BotBuilder repo.
AuthBot from Mat Velloso
Hope this helps.
Follow this tutorial for Bot side code development, i focus on configuration at B2C and Azure level here:
OAuth Connection
Client id
This is taken from the Application ID field in your B2C app's properties. It's the equivalent of a Microsoft app ID taken from any other AAD app registration.
Client secret
This is generated using the steps in this tutorial.
Select Keys and then click Generate key.
Select Save to view the key. Make note of the App key value. You use the value as the application secret in your application's code.
Use AAD V2 configuration in oAuth settings in bot channel registration - new oauth connection settings.
Fill the above details by following the steps and values we got from them.
Authorization/Token/Refresh URL
I followed on this one with
https://login.microsoftonline.com/tfp///oauth2/v2.0/authorize
for the Authorization URL and
https://login.microsoftonline.com/tfp///oauth2/v2.0/token
for the Token and Refresh URL's.
For I used the URL format (kyleorg.onmicrosoft.com) rather than the GUID format, but using the GUID also seems to work.
is the name of a user flow, like B2C_1_userflow. I created one with this tutorial.
Scopes
Using the scopes openid offline_access I am able to sign in successfully, but to my astonishment the token returned is empty.
Then I found this document which suggests using the client ID itself as a scope.
When I reuse the value from the Client id field in my Scopes field, a token is returned successfully and my bot is able to use the connection.
You can combine this with other scopes as needed, but for the sake of experimentation I highly recommend getting the simplest implementation to work first.
Let me know if these instructions work, and if they don't then we'll see if the difference lies in how we've set up our B2C apps.
As a bonus, I should mention that after you get a token you can paste it into https://jwt.ms/ to decode it and see if it recognized your B2C user correctly. Always refresh the page when pasting a new token to make sure it doesn't keep showing you the information from the last token.
Referred this document.