DnsPlugins/DOcean.ps1
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function Add-DnsTxtDOcean { [CmdletBinding()] param( [Parameter(Mandatory,Position=0)] [string]$RecordName, [Parameter(Mandatory,Position=1)] [string]$TxtValue, [Parameter(Mandatory,Position=2)] [string]$DOToken, [Parameter(ValueFromRemainingArguments)] $ExtraParams ) $apiRoot = "https://api.digitalocean.com/v2/domains" $restParams = @{Headers=@{Authorization="Bearer $DOToken"};ContentType='application/json'} Write-Verbose "Attempting to find hosted zone for $RecordName" if (!($zoneName = Find-DOZone $apiRoot $restParams)) { throw "Unable to find Digital Ocean hosted zone for $RecordName" } # separate the portion of the name that doesn't contain the zone name $recShort = $RecordName.Replace(".$ZoneName",'') $recRoot = "$apiRoot/$zoneName/records" # query the current text record try { $rec = (Invoke-RestMethod $recRoot @restParams @script:UseBasic).domain_records | Where-Object { $_.type -eq 'TXT' -and $_.name -eq $recShort -and $_.data -eq $TxtValue } } catch { throw } if (!$rec) { # create new $recBody = @{ type = 'TXT'; name = $recShort; data = $TxtValue; ttl = 10; } | ConvertTo-Json Write-Verbose "Adding a TXT record for $RecordName with value $TxtValue" Invoke-RestMethod $recRoot -Method Post @restParams -Body $recBody -EA Stop @script:UseBasic | Out-Null } else { Write-Debug "Record $RecordName already contains $TxtValue. Nothing to do." } <# .SYNOPSIS Add a DNS TXT record to Digital Ocean DNS .DESCRIPTION Add a DNS TXT record to Digital Ocean DNS .PARAMETER RecordName The fully qualified name of the TXT record. .PARAMETER TxtValue The value of the TXT record. .PARAMETER DOToken A Personal Access Token generated on the Digital Ocean website with Write access. .PARAMETER ExtraParams This parameter can be ignored and is only used to prevent errors when splatting with more parameters than this function supports. .EXAMPLE Add-DnsTxtDOcean '_acme-challenge.site1.example.com' 'asdfqwer12345678' -DOToken 'xxxxxxxxxxxx' Adds a TXT record for the specified site with the specified value. #> } function Remove-DnsTxtDOcean { [CmdletBinding()] param( [Parameter(Mandatory,Position=0)] [string]$RecordName, [Parameter(Mandatory,Position=1)] [string]$TxtValue, [Parameter(Mandatory,Position=2)] [string]$DOToken, [Parameter(ValueFromRemainingArguments)] $ExtraParams ) $apiRoot = "https://api.digitalocean.com/v2/domains" $restParams = @{Headers=@{Authorization="Bearer $DOToken"};ContentType='application/json'} Write-Verbose "Attempting to find hosted zone for $RecordName" if (!($zoneName = Find-DOZone $apiRoot $restParams)) { throw "Unable to find Digital Ocean hosted zone for $RecordName" } # separate the portion of the name that doesn't contain the zone name $recShort = $RecordName.Replace(".$ZoneName",'') $recRoot = "$apiRoot/$zoneName/records" # query the current text record try { $rec = (Invoke-RestMethod $recRoot @restParams @script:UseBasic).domain_records | Where-Object { $_.type -eq 'TXT' -and $_.name -eq $recShort -and $_.data -eq $TxtValue } } catch { throw } if ($rec) { # delete it Write-Verbose "Deleting $RecordName with value $TxtValue" Invoke-RestMethod "$recRoot/$($rec.id)" -Method Delete @restParams -EA Stop @script:UseBasic | Out-Null } else { # nothing to do Write-Debug "Record $RecordName with value $TxtValue doesn't exist. Nothing to do." } <# .SYNOPSIS Remove a DNS TXT record from Digital Ocean DNS .DESCRIPTION Remove a DNS TXT record from Digital Ocean DNS .PARAMETER RecordName The fully qualified name of the TXT record. .PARAMETER TxtValue The value of the TXT record. .PARAMETER DOToken A Personal Access Token generated on the Digital Ocean website with Write access. .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-DnsTxtDOcean '_acme-challenge.site1.example.com' 'asdfqwer12345678' -DOToken 'xxxxxxxxxxxx' Removes a TXT record for the specified site with the specified value. #> } function Save-DnsTxtDOcean { [CmdletBinding()] param( [Parameter(ValueFromRemainingArguments)] $ExtraParams ) # Nothing to do. Digital Ocean doesn't require a save step <# .SYNOPSIS Not required for Digital Ocean. .DESCRIPTION Digital Ocean does not require calling this function to commit changes to DNS records. .PARAMETER ExtraParams This parameter can be ignored and is only used to prevent errors when splatting with more parameters than this function supports. #> } ############################ # Helper Functions ############################ function Find-DOZone { [CmdletBinding()] param( [Parameter(Mandatory,Position=0)] [string]$ApiRoot, [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:DORecordZones) { $script:DORecordZones = @{} } # check for the record in the cache if ($script:DORecordZones.ContainsKey($RecordName)) { return $script:DORecordZones.$RecordName } try { $zones = (Invoke-RestMethod "$ApiRoot" @RestParams @script:UseBasic).domains } catch { throw } # Since Digital Ocean 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 $pieces = $RecordName.Split('.') for ($i=1; $i -lt ($pieces.Count-1); $i++) { $zoneTest = "$( $pieces[$i..($pieces.Count-1)] -join '.' )" Write-Debug "Checking $zoneTest" if ($zoneTest -in $zones.name) { $script:DORecordZones.$RecordName = $zoneTest return $zoneTest } } return $null } |