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Merge pull request #12 from Thumbscrew/follow-wait

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"-Wait" switch added for following the log
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James 2019-11-29 10:39:11 +00:00 committed by GitHub
commit dec9235a02
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2 changed files with 57 additions and 52 deletions
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107
public/Get-PSFirewallLog.ps1
View File

@ -23,20 +23,24 @@ function Get-PSFirewallLog {
[string]
$LogProfile,
# Number of firewall events to retrieve. Defaults to 0 (All events).
# Number of firewall events to retrieve. Defaults to -1 (All events).
[Parameter(Mandatory = $false)]
[int]
$Tail = 0,
$Tail = -1,
# ComputerName to retrieve log from
[Parameter(Mandatory = $true, ParameterSetName = 'remote')]
[string]
$ComputerName
$ComputerName,
# Follow the log
[Parameter(Mandatory = $false)]
[switch]
$Wait
)
begin {
if($PSCmdlet.ParameterSetName -eq 'auto') {
# $Path = [Environment]::ExpandEnvironmentVariables((Get-ItemProperty -Path ("HKLM:\SOFTWARE\Policies\Microsoft\WindowsFirewall\{0}Profile\Logging" -f $LogProfile) -Name "LogFilePath").LogFilePath)
$Path = Get-PSFirewallLogPath -LogProfile $LogProfile -Verbose:$VerbosePreference
}
elseif($PSCmdlet.ParameterSetName -eq 'remote') {
@ -59,55 +63,56 @@ function Get-PSFirewallLog {
}
if(Test-Path $logPath) {
$log = Get-Content $logPath
if($log.Length -gt 0) {
# Remove header lines
$log = $log[5..($log.Length - 1)]
if($Tail -gt 0) {
$startIndex = if($Tail -lt $log.Length) { $log.Length - $Tail } else { 0 }
$log = $log[$startIndex..($log.Length - 1)]
}
$members = @{
"Date" = 0
"Time" = 1
"Action" = 2
"Protocol" = 3
"SourceIP" = 4
"DestinationIP" = 5
"SourcePort" = 6
"DestinationPort" = 7
"Size" = 8
"TcpFlags" = 9
"TcpSyn" = 10
"TcpAck" = 11
"TcpWin" = 12
"IcmpType" = 13
"IcmpCode" = 14
"Info" = 15
"Path" = 16
}
$log | ForEach-Object {
$line = $_
$split = $line -split ('\s')
$fwEvent = New-Object PSCustomObject
foreach($member in $members.GetEnumerator() | Sort-Object Value) {
$fwEvent | Add-Member NoteProperty -Name $member.Name -Value $split[$member.Value]
}
$fwEvent.pstypenames.insert(0, 'PSWinFW.Log.Event')
$fwEvent
}
$members = @{
"Date" = 0
"Time" = 1
"Action" = 2
"Protocol" = 3
"SourceIP" = 4
"DestinationIP" = 5
"SourcePort" = 6
"DestinationPort" = 7
"Size" = 8
"TcpFlags" = 9
"TcpSyn" = 10
"TcpAck" = 11
"TcpWin" = 12
"IcmpType" = 13
"IcmpCode" = 14
"Info" = 15
"Path" = 16
}
else {
Write-Error "File $logPath has zero length."
$count = (Get-Content -Path $logPath).Count
# Check if outputting all events from the log and cut the first 5 lines that aren't events.
if(($Tail -lt 0) -or ($Tail -gt $count)) {
$Tail = $count - 5
}
Write-Verbose "Log has $count lines. Retrieving $Tail lines."
$c = "Get-Content -Path $logPath -Tail $Tail"
if($Wait) {
$c = "$c -Wait"
}
Invoke-Expression $c | ForEach-Object {
$line = $_
$split = $line -split ('\s')
$fwEvent = New-Object PSCustomObject
foreach($member in $members.GetEnumerator() | Sort-Object Value) {
$fwEvent | Add-Member NoteProperty -Name $member.Name -Value $split[$member.Value]
}
$fwEvent.pstypenames.insert(0, 'PSWinFW.Log.Event')
$fwEvent
}
}
else {

2
public/Get-PSFirewallLogPath.ps1
View File

@ -61,7 +61,7 @@ function Get-PSFirewallLogPath {
if($statusChanged) {
Write-Verbose ("Reverting status of $serviceName Service to {0}." -f $remoteRegistry.Status)
# Set-Service -Name $serviceName -ComputerName $ComputerName -Status $remoteRegistry.Status
# Need to use Invoke-Command as Set-Service won't stop a service that has dependancies
# Need to use Invoke-Command as Set-Service won't stop a service that has dependencies
Invoke-Command -ComputerName $ComputerName -ScriptBlock { Stop-Service -Name "RemoteRegistry" }
# Verify that service has been restored to its original state.