Powershell Tcp-IP, how to, Connect / SendData / ReadResult / Disconnect - powershell

Question

I need to query printer over JetDirect protocol (Tcp-IP Port 9100)
I already write the code to connect and disconnect, but for put and read data i have some problem :(
'printer.local:9100' | Connect-TcpHost | Disconnect-TcpHost
result
TcpDestNodes IsOpen Latency Query
------------ ------ ------- -----
printer.local:9100 True 0,7065 {}
My code
function Connect-TcpHost (
[Parameter(ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)]$Dest,
$TCPtimeout=250
) {
Begin {
} Process {
($HostName, $port) = $Dest.split(':')
Write-Verbose "$HostName : $port"
$tcpClient = New-Object System.Net.Sockets.TCPClient
$connect = $tcpClient.BeginConnect($HostName,$port,$null,$null)
Write-Verbose "Connecting..."
$timeMs = (Measure-Command {
$wait = $connect.AsyncWaitHandle.WaitOne($TCPtimeout,$false)
Write-Verbose "Connecting 2..."
}).TotalMilliseconds
If (!$wait) {
Write-error "$HostName : $Port"
Write-Verbose "Close connections..."
$tcpClient.Close()
$tcpClient.Dispose()
return;
}
[pscustomobject][ordered]#{
TcpDestNodes = $dest
tcpClient = $tcpClient
connect = $connect
IsOpen = $true
Latency = $timeMs
Query = #()
}
} End {
}
}
function Disconnect-TcpHost (
[Parameter(ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)]$ObjTcp
) {
Begin {
} Process {
Write-Verbose "Disconnecting..."
$ObjTcp.tcpClient.Close()
$ObjTcp.tcpClient.Dispose()
[pscustomobject][ordered]#{
TcpDestNodes = $ObjTcp.TcpDestNodes
IsOpen = $ObjTcp.IsOpen
Latency = $ObjTcp.Latency
Query = $ObjTcp.Query
}
} End {
}
}

Answer 1

I Write 2 new function Put-TcpHost() and Read-TcpHost()
'printer.local:9100' | Connect-TcpHost -verbose | Put-TcpHost -query '#PJL INFO ID' -verbose | Read-TcpHost -verbose | Disconnect-TcpHost -verbose
return
TcpDestNodes : 10.48.5.102:9100
IsOpen : True
Latency : 0,8351
Query : {#{Type=Query; Data=System.Object[]}, #{Type=Answer; Data=System.Object[]}}
my full Tcp-Tools.ps1
function Connect-TcpHost (
[Parameter(ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)]$Dest,
$TCPtimeout=250
) {
Begin {
} Process {
($HostName, $port) = $Dest.split(':')
Write-Verbose "$HostName : $port"
$tcpClient = New-Object System.Net.Sockets.TCPClient
$connect = $tcpClient.BeginConnect($HostName,$port,$null,$null)
Write-Verbose "Connecting..."
$timeMs = (Measure-Command {
$wait = $connect.AsyncWaitHandle.WaitOne($TCPtimeout,$false)
}).TotalMilliseconds
If (!$wait) {
Write-error "$HostName : $Port"
Write-Verbose "Echec, Close socket..."
$tcpClient.Close()
$tcpClient.Dispose()
return;
}
Write-Verbose "Connection Available"
[pscustomobject][ordered]#{
TcpDestNodes = $dest
tcpClient = $tcpClient
connect = $connect
IsOpen = $true
Latency = $timeMs
Query = #()
}
} End {
}
}
function Put-TcpHost (
[Parameter(ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)]$ObjTcp,[string]$query
) {
Begin {
} Process {
if ($ObjTcp.tcpClient.Connected) {
Write-Verbose "Send > $query"
$ObjTcp.query += [pscustomobject][ordered]#{
Type = 'Query'
Data = #($query)
}
$data = [System.Text.Encoding]::ASCII.GetBytes("$query`n")
$stream = $ObjTcp.TcpClient.GetStream()
$stream.Write($data, 0, $data.Length)
} else {
Write-error "N'est plus connecte !"
$ObjTcp.tcpClient.Close()
$ObjTcp.tcpClient.Dispose()
return;
}
$ObjTcp
} End {
}
}
function Read-TcpHost (
[Parameter(ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)]$ObjTcp,
$timeout=2500
) {
Begin {
$step = 25
} Process {
$i=$timeout/$step
Write-Verbose "> Waiting Answer"
While ([int64]$ObjTcp.tcpClient.Available -le 0 -and $i--) {
Start-Sleep -Milliseconds $step
}
Write-Verbose "Reply $($timeout-$i*$step)ms > Bytes available: $($ObjTcp.tcpClient.Available)"
If ([int64]$ObjTcp.tcpClient.Available -gt 0) {
$stringBuilder = New-Object Text.StringBuilder
try {
$stream = $ObjTcp.TcpClient.GetStream()
$bindResponseBuffer = New-Object Byte[] -ArgumentList $ObjTcp.tcpClient.Available
[Int]$response = $stream.Read($bindResponseBuffer, 0, $bindResponseBuffer.count)
$Null = $stringBuilder.Append(($bindResponseBuffer | ForEach {[char][int]$_}) -join '')
Write-Verbose "Read > $(#($stringBuilder.Tostring() -split("`n"))[1])"
$ObjTcp.query += [pscustomobject][ordered]#{
Type = 'Answer'
Data = #($stringBuilder.Tostring() -split("`n"))
}
} catch {
Write-error "Probleme !"
$ObjTcp.tcpClient.Close()
$ObjTcp.tcpClient.Dispose()
return;
}
}
$ObjTcp
} End {
}
}
function Disconnect-TcpHost (
[Parameter(ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)]$ObjTcp
) {
Begin {
} Process {
Write-Verbose "Disconnecting..."
$ObjTcp.tcpClient.Close()
$ObjTcp.tcpClient.Dispose()
[pscustomobject][ordered]#{
TcpDestNodes = $ObjTcp.TcpDestNodes
IsOpen = $ObjTcp.IsOpen
Latency = $ObjTcp.Latency
Query = $ObjTcp.Query
}
} End {
}
}