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(PowerShell) Get an Azure AD Access TokenDemonstrates how to obtain an Azure AD access token for authentication using a client ID, client secret, and tenant ID.
Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll" # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. $socket = New-Object Chilkat.Socket # Make a TLS connection to login.microsoftonline.com, waiting at most 5000 milliseconds. $success = $socket.Connect("login.microsoftonline.com",443,$true,5000) if ($success -ne $true) { $($socket.LastErrorText) exit } # Create an Azure AD auth object, and provide the required information for authorization. $azureAD = New-Object Chilkat.AuthAzureAD $azureAD.ClientId = "AZURE_AD_CLIENT_ID" $azureAD.ClientSecret = "AZURE_AD_CLIENT_SECRET" $azureAD.TenantId = "AZURE_TENANT_ID" $azureAD.Resource = "https://outlook.office365.com/" # Retrieve the access token using the TLS connection to login.microsoftonline.com $success = $azureAD.ObtainAccessToken($socket) if ($success -ne $true) { $($socket.LastErrorText) exit } # Show the access token, and then save it to a JSON file # for future use (such as with a REST method call). $("Azure AD Access Token = " + $azureAD.AccessToken) $json = New-Object Chilkat.JsonObject $json.AppendString("accessToken",$azureAD.AccessToken) # Save our access token to a file. It will be used in subsequent REST API calls. $fac = New-Object Chilkat.FileAccess $fac.WriteEntireTextFile("qa_data/tokens/azureAD_office365.json",$json.Emit(),"utf-8",$false) # Let's get the id information out of the access token. # Our JSON looks like this: # {"accessToken":"eyJ0eXAiO---TdjT3RjIn0.eyJhdWQiOiJo---jEuMCJ9.CIx0sUT8s---KvzKKUw"} # I used "---" instead of "..." to indicate a large quantity of omitted chars. # The accessToken is a long string composed of 3 base64 strings concatenated with "." chars. # The 1st part is the JOSE header. If you decode from base64, you'll get the JSON JOSE header. # The 2nd part is the id token. When decoded this is the JSON that contains information about the authenticated application. # The 3rd part is binary and does not decode to JSON. # Let's get the information from the 2nd part (the id token) $sa = New-Object Chilkat.StringArray $sa.SplitAndAppend($json.StringOf("accessToken"),".") $sbIdToken = New-Object Chilkat.StringBuilder # The 2nd string is at index 1. $sbIdToken.Append($sa.GetString(1)) $sbIdToken.Decode("base64","utf-8") $jsonIdToken = New-Object Chilkat.JsonObject $jsonIdToken.LoadSb($sbIdToken) $jsonIdToken.EmitCompact = $false $($jsonIdToken.Emit()) # We have something like this: # { # "aud": "https://outlook.office365.com/", # "iss": "https://sts.windows.net/6e8ddd66-68d1-43b0-af5c-e31b4b7dd5cd/", # "iat": 1586350465, # "nbf": 1586350465, # "exp": 1586354365, # "aio": "42dgYNjyOtX8ZZB7JLfMFJGeKUmvAA==", # "app_displayname": "ChilkatTest", # "appid": "f125d695-c50e-456e-a578-a486f06d1213", # "appidacr": "1", # "idp": "https://sts.windows.net/6d8ddd66-68d1-43b0-af5c-e31b4b7dd5cd/", # "oid": "7545a2fd-3f0d-48a4-9c58-a1a5700a24b1", # "sid": "ab981252-9378-4d0c-964b-eb2e1451138f", # "sub": "7546a2fc-3f0d-48a4-9c58-a1a5700a24b1", # "tid": "6d8ddd66-68d1-43b0-af5c-e31b4b7dd5cd", # "uti": "huIJBAa1tvGpczwV5S1BAA", # "ver": "1.0" # } # Get the desired information from the JSON: $aud = $jsonIdToken.StringOf("aud") $iss = $jsonIdToken.StringOf("iss") $iat = $jsonIdToken.IntOf("iat") $nbf = $jsonIdToken.IntOf("nbf") $exp = $jsonIdToken.IntOf("exp") $aio = $jsonIdToken.StringOf("aio") $app_displayname = $jsonIdToken.StringOf("app_displayname") $appid = $jsonIdToken.StringOf("appid") $appidacr = $jsonIdToken.StringOf("appidacr") $idp = $jsonIdToken.StringOf("idp") $oid = $jsonIdToken.StringOf("oid") $sid = $jsonIdToken.StringOf("sid") $s_sub = $jsonIdToken.StringOf("sub") $tid = $jsonIdToken.StringOf("tid") $uti = $jsonIdToken.StringOf("uti") $ver = $jsonIdToken.StringOf("ver") |
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