PowerShell 示例：导出机密和证书有效期超过要求截止日期的应用程序

此 PowerShell 脚本示例导出所有应用注册中将在指定时间段后过期的机密和证书。 它为目录中的指定应用执行此任务。 该脚本以非交互方式运行。 输出保存在 CSV 文件中。

如果没有 Azure 订阅，可在开始前创建一个 Azure 试用版。

<#################################################################################
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$loginURL = 'https://login.partner.microsoftonline.cn'
$resource = 'https://microsoftgraph.chinacloudapi.cn'

#PARAMETERS TO CHANGE
$ClientID     = 'App ID'
$ClientSecret = 'APP Secret'
$TenantName   = 'TENANT.partner.onmschina.cn'

$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://microsoftgraph.chinacloudapi.cn/.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://microsoftgraph.chinacloudapi.cn/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 = $HeaderParams
                    Uri     = "https://microsoftgraph.chinacloudapi.cn/v1.0/applications/$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

此脚本以非交互方式工作。 使用它的管理员需要更改“#PARAMETERS TO CHANGE”部分中的值。 他们需要输入自己的应用 ID、应用程序机密和租户名称。 它们还需要指定应用的凭据过期期限。 最后，他们需要设置 CSV 导出的路径。

此脚本使用 Client_Credential Oauth Flow 函数“RefreshToken”基于管理员修改的参数的值生成访问令牌。

“Add-Member”命令负责在 CSV 文件中创建列。

有关 Microsoft Graph PowerShell 模块的详细信息，请参阅 Microsoft Graph PowerShell 概述。

有关应用程序管理的其他 PowerShell 示例，请参阅 适用于应用程序管理的 Microsoft Graph PowerShell 示例。