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Exemplo do PowerShell: exportar aplicativos com segredos e certificados expirando além da data necessária

Este exemplo de script do PowerShell exporta todos os segredos e certificados de registros de aplicativo que expiram após um período determinado. Ele executa essa tarefa para os aplicativos especificados do diretório. O script é executado de forma não interativa. A saída é salva em um arquivo CSV.

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Exemplo de script

<#################################################################################
DISCLAIMER:

This is not an official PowerShell Script. We designed it specifically for the situation you have
encountered right now.

Please do not modify or change any preset parameters.

Please note that we will not be able to support the script if it's changed or altered in any way
or used in a different situation for other means.

This code-sample is provided "AS IS" without warranty of any kind, either expressed or implied,
including but not limited to the implied warranties of merchantability and/or fitness for a
particular purpose.

This sample is not supported under any Microsoft standard support program or service.

Microsoft further disclaims all implied warranties including, without limitation, any implied
warranties of merchantability or of fitness for a particular purpose.

The entire risk arising out of the use or performance of the sample and documentation remains with
you.

In no event shall Microsoft, its authors, or anyone else involved in the creation, production, or
delivery of the script be liable for any damages whatsoever (including, without limitation, damages
for loss of business profits, business interruption, loss of business information, or other
pecuniary loss) arising out of the use of or inability to use the sample or documentation, even if
Microsoft has been advised of the possibility of such damages.

#################################################################################>

$loginURL = 'https://login.microsoftonline.com'
$resource = 'https://graph.microsoft.com'

#PARAMETERS TO CHANGE
$ClientID     = 'App ID'
$ClientSecret = 'APP Secret'
$TenantName   = 'TENANT.onmicrosoft.com'

$Months = 'Number of months'
$Path   = 'add a path here\File.csv'
###################################################################
#Repeating Function to get an Access Token based on the parameters:
function Get-RefreshedToken($LoginURL, $ClientID, $ClientSecret, $TenantName) {
    $RequestParameters = @{
        Method = 'POST'
        Uri    = "$LoginURL/$TenantName/oauth2/v2.0/token"
        Body   = @{
            grant_type    = 'client_credentials'
            client_id     = $ClientID
            client_secret = $ClientSecret
            scope         = 'https://graph.microsoft.com/.default'
        }
    }

    Invoke-RestMethod @RequestParameters
}

#BUILD THE ACCESS TOKEN
$RefreshParameters = @{
    LoginURL     = $loginURL
    ClientID     = $ClientID
    ClientSecret = $ClientSecret
    TenantName   = $TenantName
}
$OAuth    = Get-RefreshedToken @RefreshParameters
$Identity = $OAuth.access_token

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

$HeaderParams = @{
    'Authorization' = "$($OAuth.token_type) $($Identity)"
}
$AppsSecrets = 'https://graph.microsoft.com/v1.0/applications'

$ApplicationsList = Invoke-WebRequest -Headers $HeaderParams -Uri $AppsSecrets -Method GET

$Logs        = @()
$NextCounter = 0

do {
    $ApplicationEvents = $ApplicationsList.Content |
        ConvertFrom-Json |
        Select-Object -ExpandProperty value

    foreach ($ApplicationEvent in $ApplicationEvents) {
        $IDs     = $ApplicationEvent.id
        $AppName = $ApplicationEvent.displayName
        $AppID   = $ApplicationEvent.appId
        $Secrets = $ApplicationEvent.passwordCredentials

        $NextCounter++

        foreach ($Secret in $Secrets) {
            $StartDate       = $Secret.startDateTime
            $EndDate         = $Secret.endDateTime
            $pos             = $StartDate.IndexOf('T')
            $LeftPart        = $StartDate.Substring(0, $pos)
            $Position        = $EndDate.IndexOf('T')
            $LeftPartEnd     = $EndDate.Substring(0, $pos)
            $DateStringStart = [Datetime]::ParseExact($LeftPart, 'yyyy-MM-dd', $null)
            $DateStringEnd   = [Datetime]::ParseExact($LeftPartEnd, 'yyyy-MM-dd', $null)
            $OptimalDate     = $DateStringStart.AddMonths($Months)

            if ($OptimalDate -lt $DateStringEnd) {
                $Log = [PSCustomObject]@{
                    'Application'       = $AppName
                    'AppID'             = $AppID
                    'Secret Start Date' = $DateStringStart
                    'Secret End Date'   = $DateStringEnd
                }

                $OwnerRequestParams = @{
                    Headers = $HeaderParams
                    Uri     = "https://graph.microsoft.com/v1.0/applications/$IDs/owners"
                    Method  = 'GET'
                }
                $ApplicationsOwners = Invoke-WebRequest @OwnerRequestParams

                $Users = $ApplicationsOwners.Content |
                    ConvertFrom-Json |
                    Select-Object -ExpandProperty value

                foreach ($User in $Users) {
                    $Owner = $User.displayname
                    $Log | Add-Member -MemberType NoteProperty -Name  'AppOwner' -Value $Owner
                }

                $Logs += $Log
            }
        }

        If ($NextCounter -eq 100) {
            $OData = $ApplicationsList.Content | ConvertFrom-Json
            $AppsSecrets = $OData.'@odata.nextLink'
            try {
                $ListRequestParams = @{
                    UseBasicParsing = $true
                    Headers         = $HeaderParams
                    Uri             = $AppsSecrets
                    Method          = 'GET'
                    ContentType     = 'application/Json'
                }
                $ApplicationsList = Invoke-WebRequest @ListRequestParams
            } catch {
                $_
            }

            $NextCounter = 0

            Start-Sleep -Seconds 1
        }
    }

} while ($AppsSecrets -ne $null)

$Logs | Export-Csv $Path -NoTypeInformation -Encoding UTF8

Explicação sobre o script

Este script está funcionando de maneira não interativa. O administrador que o utiliza precisa alterar os valores na seção "#PARÂMETROS A SEREM ALTERADOS". Eles precisam inserir sua própria ID do aplicativo, o Segredo do Aplicativo e o Nome do Locatário. Eles também precisam especificar o período para a expiração das credenciais dos aplicativos. Por fim, eles precisam definir o caminho para onde o CSV é exportado.

Esse script usa o Client_Credential Oauth Flow A função "RefreshToken" cria o token de acesso com base nos valores dos parâmetros modificados pelo administrador.

O comando "Add-Member" é responsável por criar as colunas no arquivo CSV.

Comando Observações
Invoke-WebRequest Envia solicitações HTTP e HTTPS a uma página da Web ou serviço Web. Ele analisa a resposta e retorna conjuntos de links, imagens e outros elementos HTML significativos.

Próximas etapas

Para obter mais informações sobre o módulo do Microsoft Graph PowerShell, consulte visão geral do Microsoft Graph PowerShell.

Para obter outros exemplos do PowerShell para Gerenciamento de Aplicativos, consulte exemplos do Microsoft Graph PowerShell para gerenciamento de aplicativos.

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