Plugins/LuaDns.ps1
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function Get-CurrentPluginType { 'dns-01' } function Add-DnsTxt { [CmdletBinding(DefaultParameterSetName='Secure')] [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSAvoidUsingPlainTextForPassword','')] param( [Parameter(Mandatory,Position=0)] [string]$RecordName, [Parameter(Mandatory,Position=1)] [string]$TxtValue, [Parameter(ParameterSetName='Secure',Mandatory,Position=2)] [pscredential]$LuaCredential, [Parameter(ParameterSetName='Insecure',Mandatory,Position=2)] [string]$LuaUsername, [Parameter(ParameterSetName='Insecure',Mandatory,Position=3)] [string]$LuaPassword, [Parameter(ValueFromRemainingArguments)] $ExtraParams ) # create a pscredential from insecure args if necessary if ('Insecure' -eq $PSCmdlet.ParameterSetName) { $secpass = ConvertTo-SecureString $LuaPassword -AsPlainText -Force $LuaCredential = New-Object PSCredential ($LuaUsername,$secpass) } $apiRoot = 'https://api.luadns.com/v1' $restParams = @{ Headers = @{Accept='application/json'} ContentType = 'application/json' Credential = $LuaCredential } # get the zone name for our record $zoneID = Find-LuaZone $RecordName $restParams Write-Debug "Found zone $zoneID" # Search for the record we care about try { $rec = (Invoke-RestMethod "$apiRoot/zones/$zoneID/records" @restParams @script:UseBasic) | Where-Object { $_.name -eq "$RecordName." -and $_.type -eq 'TXT' -and $_.content -eq $TxtValue } } catch { throw } if (-not $rec) { # add new record try { Write-Verbose "Adding a TXT record for $RecordName with value $TxtValue" $bodyJson = @{name="$RecordName.";type='TXT';content=$TxtValue;ttl=10} | ConvertTo-Json -Compress Invoke-RestMethod "$apiRoot/zones/$zoneID/records" -Method Post -Body $bodyJson ` @restParams @script:UseBasic | Out-Null } catch { throw } } else { Write-Debug "Record $RecordName already contains $TxtValue. Nothing to do." } <# .SYNOPSIS Add a DNS TXT record to LuaDns. .DESCRIPTION Add a DNS TXT record to LuaDns. .PARAMETER RecordName The fully qualified name of the TXT record. .PARAMETER TxtValue The value of the TXT record. .PARAMETER LuaCredential A PSCredential object containing the account email address as the username and API token as the password. This PSCredential option should only be used from Windows. .PARAMETER LuaUsername The account email address. This should be used from non-Windows. .PARAMETER LuaPassword The account API token. This should be used from non-Windows. .PARAMETER ExtraParams This parameter can be ignored and is only used to prevent errors when splatting with more parameters than this function supports. .EXAMPLE Add-DnsTxt '_acme-challenge.example.com' 'txt-value' (Get-Credential) Adds a TXT record for the specified site with the specified value from Windows. .EXAMPLE Add-DnsTxt '_acme-challenge.example.com' 'txt-value' 'user@example.com' 'password' Adds a TXT record for the specified site with the specified value from non-Windows. #> } function Remove-DnsTxt { [CmdletBinding(DefaultParameterSetName='Secure')] [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSAvoidUsingPlainTextForPassword','')] param( [Parameter(Mandatory,Position=0)] [string]$RecordName, [Parameter(Mandatory,Position=1)] [string]$TxtValue, [Parameter(ParameterSetName='Secure',Mandatory,Position=2)] [pscredential]$LuaCredential, [Parameter(ParameterSetName='Insecure',Mandatory,Position=2)] [string]$LuaUsername, [Parameter(ParameterSetName='Insecure',Mandatory,Position=3)] [string]$LuaPassword, [Parameter(ValueFromRemainingArguments)] $ExtraParams ) # create a pscredential from insecure args if necessary if ('Insecure' -eq $PSCmdlet.ParameterSetName) { $secpass = ConvertTo-SecureString $LuaPassword -AsPlainText -Force $LuaCredential = New-Object PSCredential ($LuaUsername,$secpass) } $apiRoot = 'https://api.luadns.com/v1' $restParams = @{ Headers = @{Accept='application/json'} ContentType = 'application/json' Credential = $LuaCredential } # get the zone name for our record $zoneID = Find-LuaZone $RecordName $restParams Write-Debug "Found zone $zoneID" # Search for the record we care about try { $rec = (Invoke-RestMethod "$apiRoot/zones/$zoneID/records" @restParams @script:UseBasic) | Where-Object { $_.name -eq "$RecordName." -and $_.type -eq 'TXT' -and $_.content -eq $TxtValue } } catch { throw } if (-not $rec) { Write-Debug "Record $RecordName with value $TxtValue doesn't exist. Nothing to do." } else { # delete record try { Write-Verbose "Removing TXT record for $RecordName with value $TxtValue" Invoke-RestMethod "$apiRoot/zones/$zoneID/records/$($rec.id)" -Method Delete ` @restParams @script:UseBasic | Out-Null } catch { throw } } <# .SYNOPSIS Remove a DNS TXT record from LuaDns. .DESCRIPTION Remove a DNS TXT record from LuaDns. .PARAMETER RecordName The fully qualified name of the TXT record. .PARAMETER TxtValue The value of the TXT record. .PARAMETER LuaCredential A PSCredential object containing the account email address as the username and API token as the password. This PSCredential option should only be used from Windows. .PARAMETER LuaUsername The account email address. This should be used from non-Windows. .PARAMETER LuaPassword The account API token. This should be used from non-Windows. .PARAMETER ExtraParams This parameter can be ignored and is only used to prevent errors when splatting with more parameters than this function supports. .EXAMPLE Remove-DnsTxt '_acme-challenge.example.com' 'txt-value' (Get-Credential) Removes a TXT record for the specified site with the specified value from Windows. .EXAMPLE Remove-DnsTxt '_acme-challenge.example.com' 'txt-value' 'user@example.com' 'password' Remove a TXT record for the specified site with the specified value from non-Windows. #> } function Save-DnsTxt { [CmdletBinding()] param( [Parameter(ValueFromRemainingArguments)] $ExtraParams ) <# .SYNOPSIS Not required. .DESCRIPTION This provider does not require calling this function to commit changes to DNS records. .PARAMETER ExtraParams This parameter can be ignored and is only used to prevent errors when splatting with more parameters than this function supports. #> } ############################ # Helper Functions ############################ # API Docs # http://www.luadns.com/api.html function Find-LuaZone { [CmdletBinding()] param( [Parameter(Mandatory,Position=0)] [string]$RecordName, [Parameter(Mandatory,Position=1)] [hashtable]$RestParams ) # setup a module variable to cache the record to zone mapping # so it's quicker to find later if (!$script:LuaRecordZones) { $script:LuaRecordZones = @{} } # check for the record in the cache if ($script:LuaRecordZones.ContainsKey($RecordName)) { return $script:LuaRecordZones.$RecordName } $apiRoot = 'https://api.luadns.com/v1' # Since the provider could be hosting both apex and sub-zones, we need to find the closest/deepest # sub-zone that would hold the record rather than just adding it to the apex. So for something # like _acme-challenge.site1.sub1.sub2.example.com, we'd look for zone matches in the following # order: # - site1.sub1.sub2.example.com # - sub1.sub2.example.com # - sub2.example.com # - example.com # get the list of zones try { $zones = Invoke-RestMethod "$apiRoot/zones" @RestParams @script:UseBasic } catch { throw } $pieces = $RecordName.Split('.') for ($i=0; $i -lt ($pieces.Count-1); $i++) { $zoneTest = $pieces[$i..($pieces.Count-1)] -join '.' Write-Debug "Checking $zoneTest" if ($zoneTest -in $zones.name) { $zoneID = ($zones | Where-Object { $_.name -eq $zoneTest }).id $script:LuaRecordZones.$RecordName = $zoneID return $zoneID } } return $null } |