GetIntuneApps.ps1

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<#PSScriptInfo
.VERSION 1.0
.GUID 729ebf90-26fe-4795-92dc-ca8f570cdd22
.AUTHOR AndrewTaylor
.DESCRIPTION Display an Intune applist in a grid to find more details
.COMPANYNAME
.COPYRIGHT GPL
.TAGS az azure AVD WVD environment
.LICENSEURI https://github.com/andrew-s-taylor/public/blob/main/LICENSE
.PROJECTURI https://github.com/andrew-s-taylor/public
.ICONURI
.EXTERNALMODULEDEPENDENCIES azureAD
.REQUIREDSCRIPTS
.EXTERNALSCRIPTDEPENDENCIES
.RELEASENOTES
#>

<#
.SYNOPSIS
  Displays List of apps from Intune
.DESCRIPTION
Display an Intune applist in a grid to find more details
 
.INPUTS
None required
.OUTPUTS
GridView
.NOTES
  Version: 1.0
  Author: Andrew Taylor
  Twitter: @AndrewTaylor_2
  WWW: andrewstaylor.com
  Creation Date: 11/06/2021
  Purpose/Change: Initial script development
   
.EXAMPLE
N/A
#>


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

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) {

        install-module AzureAD -Scope CurrentUser -AllowClobber -Force

    }


# 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 Get-IntuneApplication(){

<#
.SYNOPSIS
This function is used to get applications from the Graph API REST interface
.DESCRIPTION
The function connects to the Graph API Interface and gets any applications added
.EXAMPLE
Get-IntuneApplication
Returns any applications configured in Intune
.NOTES
NAME: Get-IntuneApplication
#>


[cmdletbinding()]

param
(
    $Name
)

$graphApiVersion = "Beta"
$Resource = "deviceAppManagement/mobileApps"

    try {

        if($Name){

        $uri = "https://graph.microsoft.com/$graphApiVersion/$($Resource)"
        (Invoke-RestMethod -Uri $uri -Headers $authToken -Method Get).Value | Where-Object { ($_.'displayName').contains("$Name") -and (!($_.'@odata.type').Contains("managed")) -and (!($_.'@odata.type').Contains("#microsoft.graph.iosVppApp")) }

        }

        else {

        $uri = "https://graph.microsoft.com/$graphApiVersion/$($Resource)"
        (Invoke-RestMethod -Uri $uri -Headers $authToken -Method Get).Value | Where-Object { (!($_.'@odata.type').Contains("managed")) -and (!($_.'@odata.type').Contains("#microsoft.graph.iosVppApp")) }

        }

    }

    catch {

    $ex = $_.Exception
    Write-Host "Request to $Uri failed with HTTP Status $([int]$ex.Response.StatusCode) $($ex.Response.StatusDescription)" -f Red
    $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 Get-ApplicationAssignment(){

<#
.SYNOPSIS
This function is used to get an application assignment from the Graph API REST interface
.DESCRIPTION
The function connects to the Graph API Interface and gets an application assignment
.EXAMPLE
Get-ApplicationAssignment
Returns an Application Assignment configured in Intune
.NOTES
NAME: Get-ApplicationAssignment
#>


[cmdletbinding()]

param
(
    $ApplicationId
)

$graphApiVersion = "Beta"
$Resource = "deviceAppManagement/mobileApps/$ApplicationId/assignments"

    try {

        if(!$ApplicationId){

        write-host "No Application Id specified, specify a valid Application Id" -f Red
        break

        }

        else {

        $uri = "https://graph.microsoft.com/$graphApiVersion/$($Resource)"
        (Invoke-RestMethod -Uri $uri -Headers $authToken -Method Get).Value

        }

    }

    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 Get-AADGroup(){

<#
.SYNOPSIS
This function is used to get AAD Groups from the Graph API REST interface
.DESCRIPTION
The function connects to the Graph API Interface and gets any Groups registered with AAD
.EXAMPLE
Get-AADGroup
Returns all users registered with Azure AD
.NOTES
NAME: Get-AADGroup
#>


[cmdletbinding()]

param
(
    $GroupName,
    $id,
    [switch]$Members
)

# Defining Variables
$graphApiVersion = "v1.0"
$Group_resource = "groups"

    try {

        if($id){

        $uri = "https://graph.microsoft.com/$graphApiVersion/$($Group_resource)?`$filter=id eq '$id'"
        (Invoke-RestMethod -Uri $uri -Headers $authToken -Method Get).Value

        }

        elseif($GroupName -eq "" -or $GroupName -eq $null){

        $uri = "https://graph.microsoft.com/$graphApiVersion/$($Group_resource)"
        (Invoke-RestMethod -Uri $uri -Headers $authToken -Method Get).Value

        }

        else {

            if(!$Members){

            $uri = "https://graph.microsoft.com/$graphApiVersion/$($Group_resource)?`$filter=displayname eq '$GroupName'"
            (Invoke-RestMethod -Uri $uri -Headers $authToken -Method Get).Value

            }

            elseif($Members){

            $uri = "https://graph.microsoft.com/$graphApiVersion/$($Group_resource)?`$filter=displayname eq '$GroupName'"
            $Group = (Invoke-RestMethod -Uri $uri -Headers $authToken -Method Get).Value

                if($Group){

                $GID = $Group.id

                $Group.displayName
                write-host

                $uri = "https://graph.microsoft.com/$graphApiVersion/$($Group_resource)/$GID/Members"
                (Invoke-RestMethod -Uri $uri -Headers $authToken -Method Get).Value

                }

            }

        }

    }

    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

    }

}

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

#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

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

$Intune_Apps = Get-IntuneApplication | Select-Object displayName,id | Out-GridView -Title "Intune Applications" -passthru | ForEach-Object {

$thisapp = get-intuneapplication -Name $_.displayName

$apptype = switch($thisapp.'@odata.type') {
"#microsoft.graph.win32LobApp" {"Win32 App"; break}
"#microsoft.graph.microsoftStoreForBusinessApp" {"Store for Business App"; break}
"#microsoft.graph.officeSuiteApp" {"M365 App"; break}
"#microsoft.graph.windowsMicrosoftEdgeApp" {"Microsoft Edge"; break}
"#microsoft.graph.windowsUniversalAppX" {"MSIX Package"; break}


}

$appname = $thisapp.displayName
$appid =  $thisapp.id
$apptyef =  $apptype

$App_Assignment = Get-ApplicationAssignment -ApplicationId $_.id

    if($App_Assignment){

    $assignedtype =  "Application Assigned"

        foreach($Assignment in $App_Assignment){

        $assignedgroup = (Get-AADGroup -id $Assignment.target.GroupId).displayName 
        $intent = $Assignment.intent

        }

    }
    else {

    $assignedtype = "No Application Assignment"

    }

    Write-Host

$Appoutput = @"
Name: $appname
ID: $appid
AppType: $apptype
Assigned: $assignedtype
Assigned Group(s): $assignedgroup
Assigned Intent: $intent
"@




    [System.Windows.MessageBox]::Show($Appoutput)

}