Get Tokens for accessing the Azure Reporting API. Associated Blog Post is located here https://blog.darrenjrobinson.com/how-to-access-microsoft-identity-manager-hybrid-report-data-using-powershell-graph-api-and-oauth2/
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#Sample oAuth 2.0 Microsoft API Powershell AuthN/AuthZ Script | |
#The resource URI | |
$resource = "https://graph.windows.net" | |
#Your Client ID and Client Secret obainted when registering your WebApp | |
$clientid = "802d26c7-363e-41c9-a64d-234567890" | |
$clientSecret = "tosVD1iasfdsadfsareXvTBNlQRRN/98765432345=" | |
#Your Reply URL configured when registering your WebApp | |
$redirectUri = "https://localhost" | |
#Scope | |
$scope = "Directory.Read" | |
Add-Type -AssemblyName System.Web | |
#UrlEncode the ClientID and ClientSecret and URL's for special characters | |
$clientIDEncoded = [System.Web.HttpUtility]::UrlEncode($clientid) | |
$clientSecretEncoded = [System.Web.HttpUtility]::UrlEncode($clientSecret) | |
$resourceEncoded = [System.Web.HttpUtility]::UrlEncode($resource) | |
$scopeEncoded = [System.Web.HttpUtility]::UrlEncode($scope) | |
#Refresh Token Path | |
$refreshtokenpath = "C:\temp\ReportingAPI\refresh.token" | |
#Functions | |
# Function to popup Auth Dialog Windows Form for getting an AuthCode | |
Function Get-AuthCode { | |
Add-Type -AssemblyName System.Windows.Forms | |
$form = New-Object -TypeName System.Windows.Forms.Form -Property @{Width=440;Height=640} | |
$web = New-Object -TypeName System.Windows.Forms.WebBrowser -Property @{Width=420;Height=600;Url=($url -f ($Scope -join "%20")) } | |
$DocComp = { | |
$Global:uri = $web.Url.AbsoluteUri | |
if ($Global:uri -match "error=[^&]*|code=[^&]*") {$form.Close() } | |
} | |
$web.ScriptErrorsSuppressed = $true | |
$web.Add_DocumentCompleted($DocComp) | |
$form.Controls.Add($web) | |
$form.Add_Shown({$form.Activate()}) | |
$form.ShowDialog() | Out-Null | |
$queryOutput = [System.Web.HttpUtility]::ParseQueryString($web.Url.Query) | |
$Global:output = @{} | |
foreach($key in $queryOutput.Keys){ | |
$output["$key"] = $queryOutput[$key] | |
} | |
$output | |
} | |
function Get-AzureAuthN ($resource) { | |
# Get Permissions (if the first time, get an AuthCode and Get a Bearer and Refresh Token | |
# Get AuthCode | |
$url = "https://login.microsoftonline.com/common/oauth2/authorize?response_type=code&redirect_uri=$redirectUri&client_id=$clientID&resource=$resourceEncoded&scope=$scopeEncoded" | |
Get-AuthCode | |
# Extract Access token from the returned URI | |
$regex = '(?<=code=)(.*)(?=&)' | |
$authCode = ($uri | Select-string -pattern $regex).Matches[0].Value | |
Write-output "Received an authCode, $authCode" | |
#get Access Token | |
$body = "grant_type=authorization_code&redirect_uri=$redirectUri&client_id=$clientId&client_secret=$clientSecretEncoded&code=$authCode&resource=$resource" | |
$Authorization = Invoke-RestMethod https://login.microsoftonline.com/common/oauth2/token ` | |
-Method Post -ContentType "application/x-www-form-urlencoded" ` | |
-Body $body ` | |
-ErrorAction STOP | |
Write-output $Authorization.access_token | |
$Global:accesstoken = $Authorization.access_token | |
$Global:refreshtoken = $Authorization.refresh_token | |
if ($refreshtoken){$refreshtoken |out-file "$($refreshtokenpath)"} | |
if ($Authorization.token_type -eq "Bearer" ){ | |
Write-Host "You've successfully authenticated to $($resource) with authorization for $($Authorization.scope)" | |
} | |
else{ | |
write-host "Check the console for errors. Chances are you provided the incorrect clientID and clientSecret combination for the API Endpoint selected" | |
} | |
} | |
function Get-NewTokens { | |
# We have a previous refresh token. | |
# use it to get a new token | |
$refreshtoken = Get-Content "$($refreshtokenpath)" | |
# Refresh the token | |
#get Access Token | |
$body = "grant_type=refresh_token&refresh_token=$refreshtoken&redirect_uri=$redirectUri&client_id=$clientId&client_secret=$clientSecretEncoded" | |
$Global:Authorization = Invoke-RestMethod https://login.microsoftonline.com/common/oauth2/token ` | |
-Method Post -ContentType "application/x-www-form-urlencoded" ` | |
-Body $body ` | |
-ErrorAction STOP | |
$Global:accesstoken = $Authorization.access_token | |
$Global:refreshtoken = $Authorization.refresh_token | |
if ($refreshtoken){ | |
$refreshtoken | out-file "$($refreshtokenpath)" | |
write-host "Updated tokens" | |
$Authorization | |
$Global:headerParams = @{'Authorization'="$($Authorization.token_type) $($Authorization.access_token)"} | |
} | |
} | |
#AuthN | |
Get-AzureAuthN ($resource) | |
# Refresh our tokens | |
# Get-NewTokens |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment