Upload Custom iOS XML IMAP configuration via Intune Graph API

gistfile1.ps1

<#

.COPYRIGHT
Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
See LICENSE in the project root for license information.

Added XML and JSON configuration and UPN parameter by Michael Obernberger
Version: 1.0
Date: 12.03.2019

#>

param (
    [Parameter(Mandatory=$True)]
    [string]$upn
)


####################################################

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
)

$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")

    $authResult = $authContext.AcquireTokenAsync($resourceAppIdURI,$clientId,$redirectUri,$platformParameters,$userId).Result

        # If the accesstoken is valid then create the authentication header

        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

    }

}

####################################################

Function Add-DeviceConfigurationPolicy(){

<#
.SYNOPSIS
This function is used to add an device configuration policy using the Graph API REST interface
.DESCRIPTION
The function connects to the Graph API Interface and adds a device configuration policy
.EXAMPLE
Add-DeviceConfigurationPolicy -JSON $JSON
Adds a device configuration policy in Intune
.NOTES
NAME: Add-DeviceConfigurationPolicy
#>

[cmdletbinding()]

param
(
    $JSON
)

$graphApiVersion = "Beta"
$DCP_resource = "deviceManagement/deviceConfigurations"
Write-Verbose "Resource: $DCP_resource"

    try {

        if($JSON -eq "" -or $JSON -eq $null){

        write-host "No JSON specified, please specify valid JSON for the Android Policy..." -f Red

        }

        else {

        Test-JSON -JSON $JSON

        $uri = "https://graph.microsoft.com/$graphApiVersion/$($DCP_resource)"
        Invoke-RestMethod -Uri $uri -Headers $authToken -Method Post -Body $JSON -ContentType "application/json"

        }

    }

    catch {

    $ex = $_.Exception
    $errorResponse = $ex.Response.GetResponseStream()
    $reader = New-Object System.IO.StreamReader($errorResponse)
    $reader.BaseStream.Position = 0
    $reader.DiscardBufferedData()
    $responseBody = $reader.ReadToEnd();
    Write-Host "Response content:`n$responseBody" -f Red
    Write-Error "Request to $Uri failed with HTTP Status $($ex.Response.StatusCode) $($ex.Response.StatusDescription)"
    write-host
    break

    }

}

####################################################

Function Test-JSON(){

<#
.SYNOPSIS
This function is used to test if the JSON passed to a REST Post request is valid
.DESCRIPTION
The function tests if the JSON passed to the REST Post is valid
.EXAMPLE
Test-JSON -JSON $JSON
Test if the JSON is valid before calling the Graph REST interface
.NOTES
NAME: Test-AuthHeader
#>

param (

$JSON

)

    try {
    
    $TestJSON = ConvertFrom-Json $JSON -ErrorAction Stop
    $validJson = $true

    }

    catch {

    $validJson = $false
    $_.Exception

    }

    if (!$validJson){

    Write-Host "Provided JSON isn't in valid JSON format" -f Red
    break

    }

}

####################################################

#region Authentication

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 User Principal Name if not present

            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

        }
}

# 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

}

#endregion

#region Build XML (Added by Michael Obernberger)

#Split out the surname of the upn
$name = ($upn.Split('.')[1]).Split('@')[0]
#Split out the first letter of the name
$conUsername = ($upn.Substring(0,1) + '.' + $name)

#Building the custom XML payload with the variables $name and $conUsername
$xmlPayload = @"
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>PayloadContent</key>
	<array>
		<dict>
			<key>EmailAccountDescription</key>
			<string>Contoso Confidential</string>
			<key>EmailAccountName</key>
			<string>Confidential</string>
			<key>EmailAccountType</key>
			<string>EmailTypeIMAP</string>
			<key>EmailAddress</key>
			<string>$conUsername@contoso.com</string>
			<key>IncomingMailServerAuthentication</key>
			<string>EmailAuthPassword</string>
			<key>IncomingMailServerHostName</key>
			<string>outlook.office365.com</string>
			<key>IncomingMailServerPortNumber</key>
			<integer>993</integer>
			<key>IncomingMailServerUseSSL</key>
			<true/>
			<key>IncomingMailServerUsername</key>
			<string>$upn\$conUsername</string>
			<key>OutgoingMailServerAuthentication</key>
			<string>EmailAuthPassword</string>
			<key>OutgoingMailServerHostName</key>
			<string>smtp.office365.com</string>
			<key>OutgoingMailServerPortNumber</key>
			<integer>587</integer>
			<key>OutgoingMailServerUseSSL</key>
			<true/>
			<key>OutgoingMailServerUsername</key>
			<string>$upn</string>
			<key>OutgoingPasswordSameAsIncomingPassword</key>
			<false/>
			<key>PayloadDescription</key>
			<string>Configures Email settings</string>
			<key>PayloadDisplayName</key>
			<string>Contoso Confidential</string>
			<key>PayloadIdentifier</key>
			<string>com.apple.mail.managed.986F43CA-D8EE-481F-BDC1-873CC3729587</string>
			<key>PayloadType</key>
			<string>com.apple.mail.managed</string>
			<key>PayloadUUID</key>
			<string>986F43CA-D8EE-481F-BDC1-873CC3729587</string>
			<key>PayloadVersion</key>
			<integer>1</integer>
			<key>SMIMEEnablePerMessageSwitch</key>
			<false/>
			<key>SMIMEEnabled</key>
			<false/>
			<key>SMIMEEncryptionEnabled</key>
			<false/>
			<key>SMIMESigningEnabled</key>
			<false/>
			<key>allowMailDrop</key>
			<false/>
			<key>disableMailRecentsSyncing</key>
			<false/>
		</dict>
	</array>
	<key>PayloadDisplayName</key>
	<string>Untitled</string>
	<key>PayloadIdentifier</key>
	<string>MacBook-Pro.A07A9EDD-1358-4A3E-BD89-D31978778B3F</string>
	<key>PayloadRemovalDisallowed</key>
	<false/>
	<key>PayloadType</key>
	<string>Configuration</string>
	<key>PayloadUUID</key>
	<string>EF8E9924-D761-4F2F-B13F-E38012DCA40D</string>
	<key>PayloadVersion</key>
	<integer>1</integer>
</dict>
</plist>
"@

#endregion

#region Build JSON Payload (Added by Michael Obernberger)

$bytes = [System.Text.Encoding]::UTF8.GetBytes($xmlPayload)
$encodedPayload =[Convert]::ToBase64String($bytes)

$jsonConfig = @"
{  
  "@odata.type": "#microsoft.graph.iosCustomConfiguration",
  "displayName": "iOS - Confidential $name",
  "payloadName": "Confidential - $conUsername",
  "payloadFileName": "config.xml",
  "payload": "$encodedPayload"
}
"@

#endregion


Add-DeviceConfigurationPolicy -Json $jsonConfig