在按钮上存储凭据

Question

为了让新员工更容易通过 powershell 连接到 Exchange，我正在使用 powershell:winforms 编写一个快速的小工具。

该工具将仅包含几个按钮、文本字段和信息文本，因此用户可以从一个 UI 管理 Exchange 环境。

#1  Set Credentials Button
$Set_Credential = New-Object System.Windows.Forms.Button
$Set_Credential.Top = "5"
$Set_Credential.Left = "5"
$Set_Credential.Anchor = "Left,Top"
$Set_Credential.Text = 'Set Credentials'
$Set_Credential.add_Click({
$UserCredential = Get-Credential
})
$Exchange_Manager.Controls.Add($Set_Credential)

#3  Connect to Exchange Online
$Exchange_Connect = New-Object System.Windows.Forms.Button
$Exchange_Connect.Top = "5"
$Exchange_Connect.Left = "150"
$Exchange_Connect.Anchor ="Left,Top"
$Exchange_Connect.Text = 'Connect' 
$Exchange_Connect.add_Click({
$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential "$UserCredential" -Authentication Basic -AllowRedirection
Import-PSSession $Session
})
$Exchange_Manager.Controls.Add($Exchange_Connect)

如您所见，第一个“设置凭据”按钮允许用户通过默认的 get-credentials 输入凭据。

第二个按钮“连接到 Exchange”使用 $UserCredentials 启动新的 PSSession 登录。

我面临的问题是，当按下连接按钮时，我收到一条错误消息，提示 -credential 值为 Null。

查询 $UserCredential 也会得到一个空行。

似乎尽管输入了凭据，但它们并没有被存储，因为它们是通过按钮功能调用的。

我尝试查找它，但大多数答案都很模糊。

完整代码：

Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing

$Exchange_Manager = New-Object Windows.Forms.Form

#Session Initation 1
#1  Set Credentials Button
    $Set_Credential = New-Object System.Windows.Forms.Button
    $Set_Credential.Top = "5"
    $Set_Credential.Left = "5"
    $Set_Credential.Anchor = "Left,Top"
    $Set_Credential.Text = 'Set Credentials'
    $Set_Credential.add_Click({
         $UserCredential = Get-Credential
    })
    $Exchange_Manager.Controls.Add($Set_Credential)
#2  Current Credentials

#3  Connect to Exchange Online
    $Exchange_Connect = New-Object System.Windows.Forms.Button
    $Exchange_Connect.Top = "5"
    $Exchange_Connect.Left = "150"
    $Exchange_Connect.Anchor ="Left,Top"
    $Exchange_Connect.Text = 'Connect' 
    $Exchange_Connect.add_Click({
        $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential "$UserCredential" -Authentication Basic -AllowRedirection
        Import-PSSession $Session
    })
    $Exchange_Manager.Controls.Add($Exchange_Connect)










#Information
#1  Set Credentials Button
    $Mailboxes = New-Object System.Windows.Forms.Button
    $Mailboxes.Top = "50"
    $Mailboxes.Left = "5"
    $Mailboxes.Anchor = "Left,Top"
    $Mailboxes.Text = 'Get All Mailboxes'
    $Mailboxes.add_Click({
         Get-Mailbox |Select-Object DisplayName, Alias | Sort-Object -Property DisplayName | Out-gridview
    })
    $Exchange_Manager.Controls.Add($Mailboxes)




$Exchange_Manager.ShowDialog()

Answer 1

您需要将$UserCredential 设为全局。

Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing

$Exchange_Manager = New-Object Windows.Forms.Form
$Exchange_Manager.TopMost = $true

# create a global empty credential object
$Global:UserCredential = [System.Management.Automation.PSCredential]::Empty

#Session Initation 1
#1  Set Credentials Button
    $Set_Credential = New-Object System.Windows.Forms.Button
    $Set_Credential.Top = "5"
    $Set_Credential.Left = "5"
    $Set_Credential.Anchor = "Left,Top"
    $Set_Credential.Text = 'Set Credentials'
    $Set_Credential.add_Click({
         $Global:UserCredential = Get-Credential
    })
    $Exchange_Manager.Controls.Add($Set_Credential)

#2  Current Credentials


#3  Connect to Exchange Online
    $Exchange_Connect = New-Object System.Windows.Forms.Button
    $Exchange_Connect.Top = "5"
    $Exchange_Connect.Left = "150"
    $Exchange_Connect.Anchor ="Left,Top"
    $Exchange_Connect.Text = 'Connect' 
    $Exchange_Connect.add_Click({
        if ($Global:UserCredential -ne [System.Management.Automation.PSCredential]::Empty) {
            $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential "$Global:UserCredential" -Authentication Basic -AllowRedirection
            Import-PSSession $Session
        }
    })
    $Exchange_Manager.Controls.Add($Exchange_Connect)

#4  Show the dialog and dispose of it afterwards
    $Exchange_Manager.ShowDialog()
    $Exchange_Manager.Dispose()