https://tech.guitarrapc.com/entry/2013/04/17/220445

絶賛AWSしてます。 AWSへの接続はsshです。PowerShellで繋げって？ teraterm先生があるので、今はいいかな。

ここでteratermを使っていて困るのが、接続の自動化がされず毎回ユーザー名や秘密鍵の選択をさせられることです。インフラ担当としては、いい加減にしてくださいとなるわけです。

今回、TeratermとPowerShellを連携して、なるべく自動化してみましょう。

Teratermの自動接続

Teratermには、引数でパラメーターを受ける機能があります。そう、マクロなんて書かなくてもいいのです。

Tera Term Pro コマンドライン

今回は、公開鍵での接続とします。今時、パスワード認証……ないですよね。

必要な情報

基本AWSのAMIインスタンスに接続なので、ユーザー名は固定なんですが……まぁ一応！

必要な情報は以下です。

Teraterm実行ファイルパス(ttermpro.exe)
接続先host
接続先Port
sshタイプ
認証タイプ
ユーザー名
秘密鍵パス

以下の形でショートカットを作成すると接続できます。

"C:\Program Files (x86)\teraterm\ttermpro.exe" 192.168.0.100:22 /ssh2 /auth=publickey /user=user /keyfile=D:\key.rsa

一度入力した内容は、jsonでファイル保持します。また、CUIではなくXamlでGUIライクにします。

Gitコード公開

GitHubで公開しています。

コード公開

「ファイルを開く」のダイアログをだすためのfunctionを定義します。

function Get-File{

  [CmdletBinding(
    SupportsShouldProcess = $false,
    ConfirmImpact = "none"
  )]

  param
  (
  [Parameter(
  Position = 0
  )]
  [ValidateNotNullOrEmpty()]
  [string]
  $Message,

  [Parameter(
  Position = 1
  )]
  [ValidateNotNullOrEmpty()]
  [string]
  $Extention

  )

  begin
  {
    [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") > $null
    $Dialog = New-Object System.Windows.Forms.OpenFileDialog
  }

  process
  {
    $Dialog.Title = "Select $Message File"
    $Dialog.InitialDirectory = "%UserProfile%"
    $Dialog.Filter = $Extention
    $result = $Dialog.ShowDialog()
  }

  end
  {
    If($result -eq "OK")
    {
      $inputFile = $Dialog.FileName
      return $inputFile
    }
    else
    {
      return "Cancelled"
    }
  }
}

本体の前にXamlで、ユーザーに雪像先の情報を入力してもらいます。

$loadXaml =@'
    <Window
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      Title="Invoke AWS Teraterm Connection"
      FontFamily="consolas"
      Height="400" Width="400" Margin="5"
    >
      <StackPanel>
        <Label
          Name="labeltera"
          Content="TeraTerm execution file"
          Height="30" Margin="2"
          HorizontalAlignment="Center"
        />
        <Button
          Name="bOpenFileDialogTera"
          Content="Open tterapro.exe"
          Height="30" Margin="5"
          HorizontalAlignment="Left" VerticalAlignment="Top"
        />
        <TextBox
          Name="textboxTera"
          Text="C:\Program Files (x86)\teraterm\ttermpro.exe"
          Background="#00AA88"
          Height="25" Margin="5"
        />
        <Label
          Name="labelkeyFile"
          Content="Pem Key :"
          Height="30" Margin="2"
          HorizontalAlignment="Center"
        />
        <Button
          Name="bOpenFileDialogkeyFile"
          Content="Open Pem File"
          Height="30" Margin="5"
          HorizontalAlignment="Left" VerticalAlignment="Top"
        />
        <TextBox
          Name="textboxkeyFile"
          Text="C:\Program Files (x86)\teraterm\RSA\rsa.pem"
          Background="#00AA88"
          Height="25" Margin="5"
        />
        <Label
          Name="labelip"
          Content="Input AWS Server IP or Host Name"
          Height="30" Margin="2"
          HorizontalAlignment="Center"
        />
        <TextBox
          Name="textboxIP"
          Text=""
          Background="#FFFFFF"
          Height="25" Margin="10"
        />
        <Button
          Name="buttonOK"
          Content="OK"
          FontSize="14"
          Foreground="#FFFFFF"
          Background="#505050"
          Height="40"
          Margin="5"
        />
      </StackPanel>
    </Window>
'@

で、なんちゃってコードびはいxxx

function Show-XAMLSystemTime{


  [CmdletBinding(
    SupportsShouldProcess   = $false,
    ConfirmImpact     = "none",
    DefaultParameterSetName = ""
  )]


  param
  (
    [Parameter(
    HelpMessage = "Input path of ....",
    Position = 0,
    Mandatory = $false,
    ValueFromPipeline = $true,
    ValueFromPipelineByPropertyName = $true
    )]
    [ValidateNotNullOrEmpty()]
    [ValidateScript({Test-Path $_.FullName})]
    [IO.FileInfo[]]
    $path,


    [Parameter(
    HelpMessage = "Enter tbind xaml @`...`@ to load.",
    Position = 0,
    Mandatory = $true,
    ValueFromPipeline = $true,
    ValueFromPipelineByPropertyName = $true
    )]
    [ValidateNotNullOrEmpty()]
    [string]
    $loadXaml,


    [Alias("PassThru")]
    [switch]
    $PassThrough
  )


  begin
  {
    try
    {
      # Add-Typeでアセンブリをロードする
      Add-Type -AssemblyName presentationframework
    }
    catch
    {
      #Alread Type added.
    }


    try
    {
      [xml]$xaml = $loadXaml
    }
    catch
    {
    }
  }


  process
  {
    $reader=(New-Object System.Xml.XmlNodeReader $xaml)
    $window=[Windows.Markup.XamlReader]::Load( $reader )

    $bOpenFileDialogTera = $window.FindName("bOpenFileDialogTera")
    $textboxTera = $window.FindName("textboxTera")
    $bOpenFileDialogkeyFile = $window.FindName("bOpenFileDialogkeyFile")
    $textboxkeyFile = $window.FindName("textboxkeyFile")
    $textboxIP = $window.FindName("textboxIP")
    $buttonOK = $window.FindName("buttonOK")

    $jsonFile = "Connection.json"


    #Check json file exist or not
    if(Test-Path .\$jsonFile)
    {
      $jsonRead = Get-Content $jsonFile | ConvertFrom-Json
      $textboxTera.Text = $jsonRead.tera
      $textboxkeyFile.Text = $jsonRead.keyFile
      $textboxIP.Text = $jsonRead.ip
      $textboxIP.Text = $jsonRead.ip
    }


    #bOpenFileDialogTera
    $buttonTera_clicked = $bOpenFileDialogTera.add_Click
    $buttonTera_clicked.Invoke({
    $teraResult = Get-File -Message "tterapro.exe" -Extention "exe files (*.exe)|*.exe"
    if ($teraResult -ne "Cancelled")
    {
       $textboxTera.Text = $TeraResult
    }
    })


    #bOpenFileDialogkeyFile
    $buttonkeyFile_clicked = $bOpenFileDialogkeyFile.add_Click
    $buttonkeyFile_clicked.Invoke({
    $keyFileResult = Get-File -Message ".pem" -Extention "Pem files (*.pem)|*.pem"
    if ($keyFileResult -ne "Cancelled")
    {
       $textboxkeyFile.Text = $keyFileResult
    }
    })


    #buttonOK event to close window
    $buttonOK_clicked = $buttonOK.add_Click
    $buttonOK_clicked.Invoke({
    $Window.close()})

    #buttonOK event to close window
    $buttonOK_clicked = $buttonOK.add_Click
    $buttonOK_clicked.Invoke({
    $Window.close()})


    # region / TODO: Keydown Eventの検知
    <#
    #textboxip Keydown Event
    $textboxIP_keydown = $textboxIP.KeyDown
    if($textboxIP_keydown.Key -eq [System.Windows.Forms.Keys]::Enter)
    {
      $textboxIP_keydown.Invoke({$textboxkeyFile.Text = 123})
    }
    #>


  }


  end
  {
    $window.ShowDialog() > $null


    #return to Powershell
    $result = [PSCustomObject]@{
      tera=$textboxTera.Text
      keyFile=$textboxkeyFile.Text
      ip=$textboxIP.Text.Trim()
    }


    $result | ConvertTo-Json -Compress | Out-File .\connection.json
    return $result
  }
}

teratermに接続するためのfunction作成します。

function Enter-Teraterm{

パラメータは同様に。

  [CmdletBinding(
    SupportsShouldProcess = $false,
    ConfirmImpact = "none"
  )]

  param
  (
  [Parameter(
  HelpMessage = "Input path of Terterm Pro execution file 'ttermpro.exe' exists",
  Position = 0
  )]
  [ValidateScript({Test-Path $_})]
  [ValidateNotNullOrEmpty()]
  [string]
  $teraterm="C:\Program Files (x86)\teraterm\ttermpro.exe",


  [Parameter(
  HelpMessage = "Input Connecting Hot IP/NetBIOS to connect",
  Position = 1
  )]
  [ValidateNotNullOrEmpty()]
  [string]
  $ip,


  [Parameter(
  HelpMessage = "Input Port number to connect",
  Position = 2
  )]
  [ValidateNotNullOrEmpty()]
  [int]
  $port="22",


  [Parameter(
  HelpMessage = "Input SSH type : default value = /ssh2",
  Position = 3
  )]
  [ValidateSet("/ssh1","/ssh2")]
  [ValidateNotNullOrEmpty()]
  [string]
  $ssh="/ssh2",


  [Parameter(
  HelpMessage = "Input Authentication type : default value = publickey",
  Position = 4
  )]
  [ValidateSet("password","publickey","challenge","pageant")]
  [ValidateNotNullOrEmpty()]
  [string]
  $auth="publickey",


  [Parameter(
  HelpMessage = "Input username to login : default value = ec2-user",
  Position = 5
  )]
  [ValidateNotNullOrEmpty()]
  [string]
  $user="ec2-user",


  [Parameter(
  HelpMessage = "Input rsa key path : default value = C:\Program Files (x86)\teraterm\RSA\purplehosts.pem",
  Position = 6
  )]
  [ValidateScript({Test-Path $_})]
  [ValidateNotNullOrEmpty()]
  [string]
  $keyFile="C:\Program Files (x86)\teraterm\RSA\purplehosts.pem"

  )

プロセスと引数を触るため、.NETを呼び出します。

  begin
  {
    try
    {
      $process = New-Object System.Diagnostics.Process
    }
    catch
    {
    }


    try
    {
      $process.StartInfo = New-Object System.Diagnostics.ProcessStartInfo @($teraterm)
    }
    catch
    {
    }
  }

接続先のIPとportをstringがっちゃんこします。

  process
  {
    try
    {
      [string]$connection = $ip + ":" + $port
    }
    catch
    {
    }

実行ディレクトリを指示して…

$process.StartInfo.WorkingDirectory = (Get-Location).Path

引数を指定し

$process.StartInfo.Arguments = "$connection $ssh /auth=$auth /user=$user /keyfile=$keyFile"

tterapro.exeを起動します。

$process.Start() > $null

最後にfunctionを閉じます。

後は実行しましょう。まずはXaml画面を表示して、ユーザー操作の値を受け取ります。

# Open XAML View and get paramters
$WPFresult = Show-XAMLSystemTime -loadXaml $loadXaml

次に、Xaml結果をコマンドレットに渡して実行します。

# Connection (Keyfile not allowed contain space)
Enter-Teraterm -teraterm $WPFresult.tera -ip $WPFresult.IP -keyFile $WPFresult.keyFile

ぜひ、機会がある人はどうぞ！眠いのでスクリーンショットは許してくださいー

コード全文です。(18/Apr/2013)

function Get-File{


  [CmdletBinding(
    SupportsShouldProcess = $false,
    ConfirmImpact = "none"
  )]

  param
  (
  [Parameter(
  Position = 0
  )]
  [ValidateNotNullOrEmpty()]
  [string]
  $Message,


  [Parameter(
  Position = 1
  )]
  [ValidateNotNullOrEmpty()]
  [string]
  $Extention


  )


  begin
  {
    [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") > $null
    $Dialog = New-Object System.Windows.Forms.OpenFileDialog
  }


  process
  {
    $Dialog.Title = "Select $Message File"
    $Dialog.InitialDirectory = "%UserProfile%"
    $Dialog.Filter = $Extention
    $result = $Dialog.ShowDialog()
  }


  end
  {
    If($result -eq "OK")
    {
      $inputFile = $Dialog.FileName
      return $inputFile
    }
    else
    {
      return "Cancelled"
    }
  }
}


function Show-XAMLSystemTime{


  [CmdletBinding(
    SupportsShouldProcess   = $false,
    ConfirmImpact     = "none",
    DefaultParameterSetName = ""
  )]


  param
  (
    [Parameter(
    HelpMessage = "Input path of ....",
    Position = 0,
    Mandatory = $false,
    ValueFromPipeline = $true,
    ValueFromPipelineByPropertyName = $true
    )]
    [ValidateNotNullOrEmpty()]
    [ValidateScript({Test-Path $_.FullName})]
    [IO.FileInfo[]]
    $path,


    [Parameter(
    HelpMessage = "Enter tbind xaml @`...`@ to load.",
    Position = 0,
    Mandatory = $true,
    ValueFromPipeline = $true,
    ValueFromPipelineByPropertyName = $true
    )]
    [ValidateNotNullOrEmpty()]
    [string]
    $loadXaml,


    [Alias("PassThru")]
    [switch]
    $PassThrough
  )


  begin
  {
    try
    {
      # Add-Typeでアセンブリをロードする
      Add-Type -AssemblyName presentationframework
    }
    catch
    {
      #Alread Type added.
    }


    try
    {
      [xml]$xaml = $loadXaml
    }
    catch
    {
    }
  }


  process
  {
    $reader=(New-Object System.Xml.XmlNodeReader $xaml)
    $window=[Windows.Markup.XamlReader]::Load( $reader )

    $bOpenFileDialogTera = $window.FindName("bOpenFileDialogTera")
    $textboxTera = $window.FindName("textboxTera")
    $bOpenFileDialogkeyFile = $window.FindName("bOpenFileDialogkeyFile")
    $textboxkeyFile = $window.FindName("textboxkeyFile")
    $textboxIP = $window.FindName("textboxIP")
    $buttonOK = $window.FindName("buttonOK")

    $jsonFile = "Connection.json"


    #Check json file exist or not
    if(Test-Path .\$jsonFile)
    {
      $jsonRead = Get-Content $jsonFile | ConvertFrom-Json
      $textboxTera.Text = $jsonRead.tera
      $textboxkeyFile.Text = $jsonRead.keyFile
      $textboxIP.Text = $jsonRead.ip
      $textboxIP.Text = $jsonRead.ip
    }


    #bOpenFileDialogTera
    $buttonTera_clicked = $bOpenFileDialogTera.add_Click
    $buttonTera_clicked.Invoke({
    $teraResult = Get-File -Message "tterapro.exe" -Extention "exe files (*.exe)|*.exe"
    if ($teraResult -ne "Cancelled")
    {
       $textboxTera.Text = $TeraResult
    }
    })


    #bOpenFileDialogkeyFile
    $buttonkeyFile_clicked = $bOpenFileDialogkeyFile.add_Click
    $buttonkeyFile_clicked.Invoke({
    $keyFileResult = Get-File -Message ".pem" -Extention "Pem files (*.pem)|*.pem"
    if ($keyFileResult -ne "Cancelled")
    {
       $textboxkeyFile.Text = $keyFileResult
    }
    })


    #buttonOK event to close window
    $buttonOK_clicked = $buttonOK.add_Click
    $buttonOK_clicked.Invoke({
    $Window.close()})

    #buttonOK event to close window
    $buttonOK_clicked = $buttonOK.add_Click
    $buttonOK_clicked.Invoke({
    $Window.close()})


    # region / TODO: Keydown Eventの検知
    <#
    #textboxip Keydown Event
    $textboxIP_keydown = $textboxIP.KeyDown
    if($textboxIP_keydown.Key -eq [System.Windows.Forms.Keys]::Enter)
    {
      $textboxIP_keydown.Invoke({$textboxkeyFile.Text = 123})
    }
    #>


  }


  end
  {
    $window.ShowDialog() > $null


    #return to Powershell
    $result = [PSCustomObject]@{
      tera=$textboxTera.Text
      keyFile=$textboxkeyFile.Text
      ip=$textboxIP.Text.Trim()
    }


    $result | ConvertTo-Json -Compress | Out-File .\connection.json
    return $result
  }
}




$loadXaml =@'
    <Window
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      Title="Invoke AWS Teraterm Connection"
      FontFamily="consolas"
      Height="400" Width="400" Margin="5"
    >
      <StackPanel>
        <Label
          Name="labeltera"
          Content="TeraTerm execution file"
          Height="30" Margin="2"
          HorizontalAlignment="Center"
        />
        <Button
          Name="bOpenFileDialogTera"
          Content="Open tterapro.exe"
          Height="30" Margin="5"
          HorizontalAlignment="Left" VerticalAlignment="Top"
        />
        <TextBox
          Name="textboxTera"
          Text="C:\Program Files (x86)\teraterm\ttermpro.exe"
          Background="#00AA88"
          Height="25" Margin="5"
        />
        <Label
          Name="labelkeyFile"
          Content="Pem Key :"
          Height="30" Margin="2"
          HorizontalAlignment="Center"
        />
        <Button
          Name="bOpenFileDialogkeyFile"
          Content="Open Pem File"
          Height="30" Margin="5"
          HorizontalAlignment="Left" VerticalAlignment="Top"
        />
        <TextBox
          Name="textboxkeyFile"
          Text="C:\Program Files (x86)\teraterm\RSA\rsa.pem"
          Background="#00AA88"
          Height="25" Margin="5"
        />
        <Label
          Name="labelip"
          Content="Input AWS Server IP or Host Name"
          Height="30" Margin="2"
          HorizontalAlignment="Center"
        />
        <TextBox
          Name="textboxIP"
          Text=""
          Background="#FFFFFF"
          Height="25" Margin="10"
        />
        <Button
          Name="buttonOK"
          Content="OK"
          FontSize="14"
          Foreground="#FFFFFF"
          Background="#505050"
          Height="40"
          Margin="5"
        />
      </StackPanel>
    </Window>
'@




function Enter-Teraterm{

  [CmdletBinding(
    SupportsShouldProcess = $false,
    ConfirmImpact = "none"
  )]

  param
  (
  [Parameter(
  HelpMessage = "Input path of Terterm Pro execution file 'ttermpro.exe' exists",
  Position = 0
  )]
  [ValidateScript({Test-Path $_})]
  [ValidateNotNullOrEmpty()]
  [string]
  $teraterm="C:\Program Files (x86)\teraterm\ttermpro.exe",


  [Parameter(
  HelpMessage = "Input Connecting Hot IP/NetBIOS to connect",
  Position = 1
  )]
  [ValidateNotNullOrEmpty()]
  [string]
  $ip,


  [Parameter(
  HelpMessage = "Input Port number to connect",
  Position = 2
  )]
  [ValidateNotNullOrEmpty()]
  [int]
  $port="22",


  [Parameter(
  HelpMessage = "Input SSH type : default value = /ssh2",
  Position = 3
  )]
  [ValidateSet("/ssh1","/ssh2")]
  [ValidateNotNullOrEmpty()]
  [string]
  $ssh="/ssh2",


  [Parameter(
  HelpMessage = "Input Authentication type : default value = publickey",
  Position = 4
  )]
  [ValidateSet("password","publickey","challenge","pageant")]
  [ValidateNotNullOrEmpty()]
  [string]
  $auth="publickey",


  [Parameter(
  HelpMessage = "Input username to login : default value = ec2-user",
  Position = 5
  )]
  [ValidateNotNullOrEmpty()]
  [string]
  $user="ec2-user",


  [Parameter(
  HelpMessage = "Input rsa key path : default value = C:\Program Files (x86)\teraterm\RSA\rsa.pem",
  Position = 6
  )]
  [ValidateScript({Test-Path $_})]
  [ValidateNotNullOrEmpty()]
  [string]
  $keyFile="C:\Program Files (x86)\teraterm\RSA\rsa.pem"

  )


  begin
  {
    try
    {
      $process = New-Object System.Diagnostics.Process
    }
    catch
    {
    }

    try
    {
      $process.StartInfo = New-Object System.Diagnostics.ProcessStartInfo @($teraterm)
    }
    catch
    {
    }
  }


  process
  {
    try
    {
      [string]$connection = $ip + ":" + $port
    }
    catch
    {
    }

    $process.StartInfo.WorkingDirectory = (Get-Location).Path


    #"C:\Program Files (x86)\teraterm\ttermpro.exe" 192.168.0.100:22 /ssh2 /auth=publickey /user=user /keyfile=D:\key.rsa
    $process.StartInfo.Arguments = "$connection $ssh /auth=$auth /user=$user `"/keyfile=$keyFile`""
    $process.Start() > $null
  }

}


# Open XAML View and get paramters
$WPFresult = Show-XAMLSystemTime -loadXaml $loadXaml


# Connection (Keyfile not allowed contain space)
Enter-Teraterm -teraterm $WPFresult.tera -ip $WPFresult.IP -keyFile $WPFresult.keyFile