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02e313c Aug 31, 2017
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234 lines (142 sloc) 6.26 KB
<#
.COPYRIGHT
Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
See LICENSE in the project root for license information.
#>
####################################################
function Get-AuthToken {
<#
.SYNOPSIS
This function is used to authenticate with the Graph API REST interface
.DESCRIPTION
The function authenticate with the Graph API Interface with the tenant name
.EXAMPLE
Get-AuthToken
Authenticates you with the Graph API interface
.NOTES
NAME: Get-AuthToken
#>
[cmdletbinding()]
param
(
[Parameter(Mandatory=$true)]
$User,
$Password
)
$userUpn = New-Object "System.Net.Mail.MailAddress" -ArgumentList $User
$tenant = $userUpn.Host
Write-Host "Checking for AzureAD module..."
$AadModule = Get-Module -Name "AzureAD" -ListAvailable
if ($AadModule -eq $null) {
Write-Host "AzureAD PowerShell module not found, looking for AzureADPreview"
$AadModule = Get-Module -Name "AzureADPreview" -ListAvailable
}
if ($AadModule -eq $null) {
write-host
write-host "AzureAD Powershell module not installed..." -f Red
write-host "Install by running 'Install-Module AzureAD' or 'Install-Module AzureADPreview' from an elevated PowerShell prompt" -f Yellow
write-host "Script can't continue..." -f Red
write-host
exit
}
# Getting path to ActiveDirectory Assemblies
# If the module count is greater than 1 find the latest version
if($AadModule.count -gt 1){
$Latest_Version = ($AadModule | select version | Sort-Object)[-1]
$aadModule = $AadModule | ? { $_.version -eq $Latest_Version.version }
# Checking if there are multiple versions of the same module found
if($AadModule.count -gt 1){
$aadModule = $AadModule | select -Unique
}
$adal = Join-Path $AadModule.ModuleBase "Microsoft.IdentityModel.Clients.ActiveDirectory.dll"
$adalforms = Join-Path $AadModule.ModuleBase "Microsoft.IdentityModel.Clients.ActiveDirectory.Platform.dll"
}
else {
$adal = Join-Path $AadModule.ModuleBase "Microsoft.IdentityModel.Clients.ActiveDirectory.dll"
$adalforms = Join-Path $AadModule.ModuleBase "Microsoft.IdentityModel.Clients.ActiveDirectory.Platform.dll"
}
[System.Reflection.Assembly]::LoadFrom($adal) | Out-Null
[System.Reflection.Assembly]::LoadFrom($adalforms) | Out-Null
$clientId = "d1ddf0e4-d672-4dae-b554-9d5bdfd93547"
$redirectUri = "urn:ietf:wg:oauth:2.0:oob"
$resourceAppIdURI = "https://graph.microsoft.com"
$authority = "https://login.microsoftonline.com/$Tenant"
try {
$authContext = New-Object "Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationContext" -ArgumentList $authority
# https://msdn.microsoft.com/en-us/library/azure/microsoft.identitymodel.clients.activedirectory.promptbehavior.aspx
# Change the prompt behaviour to force credentials each time: Auto, Always, Never, RefreshSession
$platformParameters = New-Object "Microsoft.IdentityModel.Clients.ActiveDirectory.PlatformParameters" -ArgumentList "Auto"
$userId = New-Object "Microsoft.IdentityModel.Clients.ActiveDirectory.UserIdentifier" -ArgumentList ($User, "OptionalDisplayableId")
if($Password -eq $null){
$authResult = $authContext.AcquireTokenAsync($resourceAppIdURI,$clientId,$redirectUri,$platformParameters,$userId).Result
}
else {
if(test-path "$Password"){
$UserPassword = get-Content "$Password" | ConvertTo-SecureString
$userCredentials = new-object Microsoft.IdentityModel.Clients.ActiveDirectory.UserPasswordCredential -ArgumentList $userUPN,$UserPassword
$authResult = [Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationContextIntegratedAuthExtensions]::AcquireTokenAsync($authContext, $resourceAppIdURI, $clientid, $userCredentials).Result;
}
else {
Write-Host "Path to Password file" $Password "doesn't exist, please specify a valid path..." -ForegroundColor Red
Write-Host "Script can't continue..." -ForegroundColor Red
Write-Host
break
}
}
if($authResult.AccessToken){
# Creating header for Authorization token
$authHeader = @{
'Content-Type'='application/json'
'Authorization'="Bearer " + $authResult.AccessToken
'ExpiresOn'=$authResult.ExpiresOn
}
return $authHeader
}
else {
Write-Host
Write-Host "Authorization Access Token is null, please re-run authentication..." -ForegroundColor Red
Write-Host
break
}
}
catch {
write-host $_.Exception.Message -f Red
write-host $_.Exception.ItemName -f Red
write-host
break
}
}
####################################################
#region Authentication
$User = "serviceaccount@tenant.onmicrosoft.com"
$Password = "c:\credentials\credentials.txt"
write-host
# Checking if authToken exists before running authentication
if($global:authToken){
# Setting DateTime to Universal time to work in all timezones
$DateTime = (Get-Date).ToUniversalTime()
# If the authToken exists checking when it expires
$TokenExpires = ($authToken.ExpiresOn.datetime - $DateTime).Minutes
if($TokenExpires -le 0){
write-host "Authentication Token expired" $TokenExpires "minutes ago" -ForegroundColor Yellow
write-host
# Defining Azure AD tenant name, this is the name of your Azure Active Directory (do not use the verified domain name)
if($User -eq $null -or $User -eq ""){
$User = Read-Host -Prompt "Please specify your user principal name for Azure Authentication"
Write-Host
}
$global:authToken = Get-AuthToken -User $User -Password "$Password"
}
}
# Authentication doesn't exist, calling Get-AuthToken function
else {
if($User -eq $null -or $User -eq ""){
$User = Read-Host -Prompt "Please specify your user principal name for Azure Authentication"
Write-Host
}
# Getting the authorization token
$global:authToken = Get-AuthToken -User $User -Password "$Password"
}
#endregion
####################################################
Write-Host