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.
Related
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.
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 would like to upload a given file to Sharepoint. I'm using the Microsoft Graph API.
The documentation follows this workflow:
1. If no token, redirect the user to the Microsoft signin page.
2. The user is then redirected to the application, with an access token
3. Use access token to have an authorization bearer
4. Do what you gotta do...
My problem is the sign-in part. I don't want my users to be redirected to the Microsoft signin page. I want my application to connect and get the access token in the background (with cURL or whatever).
How can I do that? Why is the "open in browser" necessary?
I tried to replicate the sign-in process, but all I get back is the HTML response from the signin page.
Thanks in advance.
Your application act as a single-tenant service or daemon app.
The documentation about this scenario is here : https://developer.microsoft.com/en-us/graph/docs/authorization/app_only
The application must be registered in the AzureAD directory corresponding to the Office365 tenant
A first request is made by passing the application unique identifier and secret key as registered in the directory. This request returns an access token
The access token can now be used in the Authorization header of the following request to the Microsoft Graph API.
This method (of using Client ID and Secret) works well but there are other ways which may be better suited for similar scenarios.
The one major thing which is missing in access token generated this way is a user, meaning the token only contains the identity of the OAuth application (client) which called it but is not associated with any user for the request.
This could have a couple of implications:
Since the token is not associated with a specific user you will not know who performed the operation. In your example, you would not know who uploaded the file (and other similar information may be missing).
Access token without users will not work at all for some methods. For those, you need a delegated token.
Creating a delegated token requires some effort, if you are interested you can find the details in my article:
Getting Access Token for Microsoft Graph Using OAuth REST API
I don't need Microsoft Login screen.
If I am already having username and password with me ,
can't I just pass them using Http client and get the authentication token.
Is it possible , please suggest.
The Azure AD supports various flow about OAuth 2.0. To acquire the access token with username and password directly, we can interact with resource owner password credential flow. However this scenario should be used carefully since it may leak the password. You can refer this flow about specification from rfc6749#page-37.
And to implement this flow using C#, you can refer this blog.
The short answer is, it is possible but not recommended (See comments from Philippe below).
The ability to get a token when you have a user name and password is extremely limited.
You might be able to do this in rare scenarios when your device is not able to prompt the AAD Auth page, or in cases when it is a native app/automation tests and etc.
Please see this post for the limitations and workarounds:
http://www.cloudidentity.com/blog/2014/07/08/using-adal-net-to-authenticate-users-via-usernamepassword/
Also look at this answer from me here, where I made it to work for our automation tests, but Vibronet has comments that, this solution will stop working, but not sure it has happened yet or not.
How to acquire a user based token from Azure Graph 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.