PowerShell
TCP-communicatie met PowerShell

TCP-luisteraar

Function Receive-TCPMessage {
    Param ( 
        [Parameter(Mandatory=$true, Position=0)]
        [ValidateNotNullOrEmpty()] 
        [int] $Port
    ) 
    Process {
        Try { 
            # Set up endpoint and start listening
            $endpoint = new-object System.Net.IPEndPoint([ipaddress]::any,$port) 
            $listener = new-object System.Net.Sockets.TcpListener $EndPoint
            $listener.start() 
 
            # Wait for an incoming connection 
            $data = $listener.AcceptTcpClient() 
        
            # Stream setup
            $stream = $data.GetStream() 
            $bytes = New-Object System.Byte[] 1024

            # Read data from stream and write it to host
            while (($i = $stream.Read($bytes,0,$bytes.Length)) -ne 0){
                $EncodedText = New-Object System.Text.ASCIIEncoding
                $data = $EncodedText.GetString($bytes,0, $i)
                Write-Output $data
            }
         
            # Close TCP connection and stop listening
            $stream.close()
            $listener.stop()
        }
        Catch {
            "Receive Message failed with: `n" + $Error[0]
        }
    }
}

Begin met luisteren met het volgende en vang elk bericht op in de variabele $msg :

$msg = Receive-TCPMessage -Port 29800

TCP-afzender

Function Send-TCPMessage { 
    Param ( 
            [Parameter(Mandatory=$true, Position=0)]
            [ValidateNotNullOrEmpty()] 
            [string] 
            $EndPoint
        , 
            [Parameter(Mandatory=$true, Position=1)]
            [int]
            $Port
        , 
            [Parameter(Mandatory=$true, Position=2)]
            [string]
            $Message
    ) 
    Process {
        # Setup connection 
        $IP = [System.Net.Dns]::GetHostAddresses($EndPoint) 
        $Address = [System.Net.IPAddress]::Parse($IP) 
        $Socket = New-Object System.Net.Sockets.TCPClient($Address,$Port) 
    
        # Setup stream wrtier 
        $Stream = $Socket.GetStream() 
        $Writer = New-Object System.IO.StreamWriter($Stream)

        # Write message to stream
        $Message | % {
            $Writer.WriteLine($_)
            $Writer.Flush()
        }
    
        # Close connection and stream
        $Stream.Close()
        $Socket.Close()
    }
}

Stuur een bericht met:

Send-TCPMessage -Port 29800 -Endpoint 192.168.0.1 -message "My first TCP message !"

Opmerking : TCP-berichten kunnen worden geblokkeerd door uw softwarefirewall of door externe firewalls die u probeert te doorlopen. Zorg ervoor dat de TCP-poort die u in de bovenstaande opdracht hebt ingesteld, open is en dat u de listener op dezelfde poort hebt ingesteld.