Read-DHCPLogFiles.psm1
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function Read-DHCPLog { param ( [Parameter(Mandatory)] [string] # Path to log file $LogFile, [Parameter()] [switch] $V6 ) if ($V6) { Write-Verbose -Message "reading log file for DHCP V6..." $CSVHead = 36 $HeaderString = "ID","Date","Time","Description","IPv6 Address","Host Name","Error Code","DUID Length","DUID bytes (hex)","UserName","DHCID","Subnet prefix" } else { Write-Verbose -Message "reading log file for DHCP V4..." $CSVHead = 34 $HeaderString = "ID","Date","Time","Description","IP Address","Host Name","MAC Address","User Name","TransactionID","QResult","Probationtime","CorrelationID","Dhcid","VendorClass(Hex)","VendorClass(ASCII)","UserClass(Hex)","UserClass(ASCII)","RelayAgentInformation","DnsRegError" } Write-Verbose -Message "Read file:" Write-Verbose -Message $LogFile $LogContentRaw = Get-Content -Path $LogFile Write-Verbose -Message "Table header is:" Write-Verbose -Message ($HeaderString -join ",") $EndL = $LogContentRaw.Count -1 $LogContent = $LogContentRaw[$CSVHead..$EndL] [array]$TableRaw = ConvertFrom-Csv -InputObject $LogContent -Header $HeaderString [array]$TableOut = @() $TableRaw.ForEach({ [datetime]$EventDate = ($_.Date, $_.Time -join " ") $EventContent = $_ | Select-Object -Property * -ExcludeProperty Date, Time $EventContent | Add-Member -MemberType NoteProperty -Name "DateTime" -Value $EventDate $TableOut += $EventContent }) $Out = $TableOut | Sort-Object -Property DateTime -Descending return $Out } function Read-DHCPLogFiles { param ( [Parameter(Mandatory)] # Path to folder with DHCP logs [string] $LogDir, [Parameter()] # Read logs for DHCP v6 [switch] $V6 ) Write-Verbose -Message "Folder with log files is:" Write-Verbose -Message $LogDir if ($V6) { Write-Verbose -Message "reading logs for DHCP V6..." $LogFiles = (Get-ChildItem -Path $LogDir -File -Filter "*.log" | Where-Object {$_.BaseName -match "V6"} ).FullName } else { Write-Verbose -Message "reading logs for DHCP V4..." $LogFiles = (Get-ChildItem -Path $LogDir -File -Filter "*.log" | Where-Object {$_.BaseName -notmatch "V6"} ).FullName } Write-Verbose -Message "Logfiles found in selected folder:" $LogFiles.ForEach({ Write-Verbose -Message $_ }) $Out = @() foreach ($Log in $LogFiles) { $Out += Read-DHCPLog -LogFile $Log -V6:$V6 } $Out = $Out | Sort-Object -Property DateTime -Descending return $Out } Export-ModuleMember -Function "Read-DHCPLogFiles" |