Integrate Kentico with Azure Active Directory.
This github repository is extracted initially from https://github.com/kate-orlova/azure-ad-auth-in-kentico

The following changes have been applied:

• [Missing instructions] Deploy CMS solution as virtual directory (no need to go "web application")
  

• Keep IIS_APPPOOL\DefaultAppPool (.NET 4.0 and managed integration pipe)
  

• [Missing instructions] Build it with x64 due to some very long package names
  

• [Missing instructions] Add an empty AzureADAuthentication.axd to the CMS project (root)
  

• [Missing instructions] On Azure Active Directory, assign to Kentico-CMS registered application the following API Permissions:
    Azure Active Directory Graph:
      Directory.ReadWrite.All
  

• [Improved business logic] In AuthenticateAzureDirectoryHandler add the creation of any Azure Active Directory with "editor" privilege by default; their access to CMS features will then be controlled through the role and its permissions
  

• [Improved business logic] Added validation for Azure Active Directory user whose groups do not match any Kentico roles. Raise exception and exit if no match found. No Kentico role-less user should be allowed to be created via Azure Active Directory authentication
  

• [Bug fix] Update the verb from "*" to "GET" in AzureADAuthentication.axd handler in web.config (called AzureADAuthenticationHandler, in the file with the same name)
  
  

• [Bug fix] Update the following line in Login.ascx.cs file:
  btnAzureSignIn.NavigateUrl = authorizationUrl.AbsoluteUri.Replace("form_post","query");
  

• [Bug fix] Update graph.windows.net to the newer graph.microsoft.com
  

• For testing purposes please use the following settings:

*** Azure Active Directory ***********************************
Authority URL: "https://login.microsoftonline.com/{0}"
Graph URL: "https://graph.microsoft.com/v1.0/{0}"
Return URI: http://localhost/MSApp/AzureADAuthentication.axd
Client ID: "5d6c194a-708b-4fd1-8e61-60bbdd47943e"
Tenant ID: "e8422127-880e-4288-928e-4ced14423628"
Application Key: "_~DO93T.Udoq2gNw_2_n4JxBrG-18q~o9V"
Redirect URIs: "http://localhost/CMSApp/AzureADAuthentication.axd"

Username: "azor@alviandalabs.onmicrosoft.com"
Group: "Dogs"
Password: "Alldogs2020!"

*** Kentico Admin: Settings ***********************************
Authentication Redirect Page: "/AzureADAuthentication.axd"