95 lines
3.7 KiB
PowerShell
95 lines
3.7 KiB
PowerShell
function ConvertTo-HostsFileEntry {
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<#
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.SYNOPSIS
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Convert the given record to a defined Hosts File Entry
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.OUTPUTS
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Returns a [object[]] of hosts entries.
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#>
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[CmdletBinding(DefaultParameterSetName = 'FromPipeline')]
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[OutputType([string[]])]
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param (
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[Parameter(Mandatory = $false, ValueFromPipeline = $true, Position = 0, ParameterSetName = 'FromPipeline')]
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[string]$RawRecord,
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[Parameter(Mandatory = $true, ParameterSetName = 'Entries')]
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[ValidateNotNullOrEmpty()]
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[string]$IpAddress,
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[Parameter(Mandatory = $true, ParameterSetName = 'Entries')]
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[ValidateNotNullOrEmpty()]
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[string]$Hostname,
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[Parameter(Mandatory = $false, ParameterSetName = 'Entries')]
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[string]$Comment
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)
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begin {
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# Define the defaults for the HostsFileEntry response to add some custom display information
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$defaultTypeName = 'HostsFileEntry'
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$defaultKeys = @('IPAddress')
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$defaultDisplaySet = @('IPAddress', 'Hostname', 'IsDisabled', 'Comment')
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$defaultDisplayPropertySet = New-Object System.Management.Automation.PSPropertySet('DefaultDisplayPropertySet',[string[]]$defaultDisplaySet)
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$defaultKeyPropertySet = New-Object System.Management.Automation.PSPropertySet('DefaultKeyPropertySet',[string[]]$defaultKeys)
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$PSStandardMembers = [System.Management.Automation.PSMemberInfo[]]@($defaultDisplayPropertySet,$defaultKeyPropertySet)
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$disabledKey = "#DISABLED#"
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}
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process {
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$workingIpAddress = $IpAddress
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$workingHostname = $Hostname
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$workingComment = $Comment
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$isDisabled = $false
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$commentSeparator = -1
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if ($PSCmdlet.ParameterSetName -eq 'FromPipeline') {
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$RawRecord = $RawRecord.Trim()
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if ($RawRecord.StartsWith($disabledKey)) {
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$isDisabled = $true
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$RawRecord = $RawRecord.Substring($disabledKey.Length).Trim()
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}
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$commentSeparator = $RawRecord.IndexOf("#")
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$workingComment = ""
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$keep = $false
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if ($commentSeparator -gt -1) {
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$splits = $RawRecord -split '#',2
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$workingComment = $splits[1].Trim()
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$RawRecord = $splits[0].Trim()
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}
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if ($RawRecord.length -gt 0) {
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$bits = [regex]::Split($RawRecord, "\s+")
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if ($bits.count -gt 1) {
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$workingIpAddress = $bits[0].Trim()
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$workingHostname = $bits[1].Trim()
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}
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}
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}
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$keep = (($workingComment -imatch 'keep') -or ($workingIpAddress -eq $null))
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$blankLine = ([string]::IsNullOrWhiteSpace($workingComment) -and [string]::IsNullOrWhiteSpace($workingIpAddress) -and ($commentSeparator -eq -1))
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try {
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$hostEntryObject = New-Object PSCustomObject -Property @{
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IpAddress = $workingIpAddress
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Hostname = $workingHostname
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Comment = $workingComment
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Keep = $keep
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BlankLine = $blankLine
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IsDisabled = $isDisabled
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}
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#Give this object a unique typename
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$hostEntryObject.PSObject.TypeNames.Insert(0,$defaultTypeName)
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$hostEntryObject | Add-Member -MemberType MemberSet -Name PSStandardMembers -Value $PSStandardMembers
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return $hostEntryObject
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} catch {
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Write-Warning "$logLead : Could not convert item to HostEntry object. Check error below. Returning `$null"
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Write-ErrorObject -ErrorItem $PSItem
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return $null
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}
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}
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}
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Set-Alias -Name New-HostsFileEntry -Value ConvertTo-HostsFileEntry |