Plugins/Gandi.ps1
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function Get-CurrentPluginType { 'dns-01' } function Add-DnsTxt { [CmdletBinding(DefaultParameterSetName='Secure')] param( [Parameter(Mandatory,Position=0)] [string]$RecordName, [Parameter(Mandatory,Position=1)] [string]$TxtValue, [Parameter(ParameterSetName='Secure',Mandatory,Position=2)] [securestring]$GandiToken, [Parameter(ParameterSetName='Insecure',Mandatory,Position=2)] [string]$GandiTokenInsecure, [Parameter(ValueFromRemainingArguments)] $ExtraParams ) # un-secure the password so we can add it to the auth header if ('Secure' -eq $PSCmdlet.ParameterSetName) { $GandiTokenInsecure = (New-Object PSCredential "user",$GandiToken).GetNetworkCredential().Password } $restParams = @{ Headers = @{ 'X-Api-Key' = $GandiTokenInsecure Accept = 'application/json' } ContentType = 'application/json' } # get the zone name for our record $zoneName = Find-GandiZone $RecordName $restParams Write-Debug "Found zone $zoneName" # find the matching TXT record if it exists $recShort = ($RecordName -ireplace [regex]::Escape($zoneName), [string]::Empty).TrimEnd('.') $recUrl = "https://dns.api.gandi.net/api/v5/domains/$zoneName/records/$recShort/TXT" try { $rec = Invoke-RestMethod $recUrl @restParams @script:UseBasic -EA Stop } catch {} if ($rec -and "`"$TxtValue`"" -in $rec.rrset_values) { Write-Debug "Record $RecordName already contains $TxtValue. Nothing to do." } else { if (-not $rec) { # add new record Write-Verbose "Adding a TXT record for $RecordName with value $TxtValue" $body = @{rrset_values=@("`"$TxtValue`"")} Write-Debug "Sending body:`n$(($body | ConvertTo-Json))" $bodyJson = $body | ConvertTo-Json -Compress try { Invoke-RestMethod $recUrl -Method Post -Body $bodyJson ` @restParams @script:UseBasic -EA Stop | Out-Null } catch { throw } } else { # update the existing record Write-Verbose "Updating a TXT record for $RecordName with value $TxtValue" $body = @{rrset_values=(@($rec.rrset_values) + @("`"$TxtValue`""))} Write-Debug "Sending body:`n$(($body | ConvertTo-Json))" $bodyJson = $body | ConvertTo-Json -Compress try { Invoke-RestMethod $recUrl -Method Put -Body $bodyJson ` @restParams @script:UseBasic -EA Stop | Out-Null } catch { throw } } } <# .SYNOPSIS Add a DNS TXT record to Gandi. .DESCRIPTION Add a DNS TXT record to Gandi. .PARAMETER RecordName The fully qualified name of the TXT record. .PARAMETER TxtValue The value of the TXT record. .PARAMETER GandiToken The API token for your Gandi account. This SecureString version should only be used on Windows. .PARAMETER GandiTokenInsecure The API token for your Gandi account. This standard String version should be used on non-Windows OSes. .PARAMETER ExtraParams This parameter can be ignored and is only used to prevent errors when splatting with more parameters than this function supports. .EXAMPLE $token = Read-Host "Gandi Token" -AsSecureString PS C:\>Add-DnsTxt '_acme-challenge.example.com' 'txt-value' $token Adds a TXT record using a securestring object for GandiToken. (Only works on Windows) .EXAMPLE Add-DnsTxt '_acme-challenge.example.com' 'txt-value' 'token' Adds a TXT record using a standard string object for GandiTokenInsecure. (Use this on non-Windows) #> } function Remove-DnsTxt { [CmdletBinding()] param( [Parameter(Mandatory,Position=0)] [string]$RecordName, [Parameter(Mandatory,Position=1)] [string]$TxtValue, [Parameter(ParameterSetName='Secure',Mandatory,Position=2)] [securestring]$GandiToken, [Parameter(ParameterSetName='Insecure',Mandatory,Position=2)] [string]$GandiTokenInsecure, [Parameter(ValueFromRemainingArguments)] $ExtraParams ) # un-secure the password so we can add it to the auth header if ('Secure' -eq $PSCmdlet.ParameterSetName) { $GandiTokenInsecure = (New-Object PSCredential "user",$GandiToken).GetNetworkCredential().Password } $restParams = @{ Headers = @{ 'X-Api-Key' = $GandiTokenInsecure Accept = 'application/json' } ContentType = 'application/json' } # get the zone name for our record $zoneName = Find-GandiZone $RecordName $restParams Write-Debug "Found zone $zoneName" # find the matching TXT record if it exists $recShort = ($RecordName -ireplace [regex]::Escape($zoneName), [string]::Empty).TrimEnd('.') $recUrl = "https://dns.api.gandi.net/api/v5/domains/$zoneName/records/$recShort/TXT" try { $rec = Invoke-RestMethod $recUrl @restParams @script:UseBasic -EA Stop } catch {} if ($rec -and "`"$TxtValue`"" -in $rec.rrset_values) { if ($rec.rrset_values.Count -gt 1) { # remove just the value we care about Write-Verbose "Removing $TxtValue from TXT record for $RecordName" $otherVals = $rec.rrset_values | Where-Object { $_ -ne "`"$TxtValue`"" } $body = @{rrset_values=@($otherVals)} Write-Debug "Sending body:`n$(($body | ConvertTo-Json))" $bodyJson = $body | ConvertTo-Json -Compress try { Invoke-RestMethod $recUrl -Method Put -Body $bodyJson ` @restParams @script:UseBasic -EA Stop | Out-Null } catch { throw } } else { # delete the whole record because this value is the last one Write-Verbose "Removing TXT record for $RecordName" try { Invoke-RestMethod $recUrl -Method Delete ` @restParams @script:UseBasic -EA Stop | Out-Null } catch { throw } } } else { Write-Debug "Record $RecordName with value $TxtValue doesn't exist. Nothing to do." } <# .SYNOPSIS Remove a DNS TXT record from Gandi. .DESCRIPTION Remove a DNS TXT record from Gandi. .PARAMETER RecordName The fully qualified name of the TXT record. .PARAMETER TxtValue The value of the TXT record. .PARAMETER GandiToken The API token for your Gandi account. This SecureString version should only be used on Windows. .PARAMETER GandiTokenInsecure The API token for your Gandi account. This standard String version should be used on non-Windows OSes. .PARAMETER ExtraParams This parameter can be ignored and is only used to prevent errors when splatting with more parameters than this function supports. .EXAMPLE $token = Read-Host "Gandi Token" -AsSecureString PS C:\>Remove-DnsTxt '_acme-challenge.example.com' 'txt-value' $token Removes a TXT record using a securestring object for GandiToken. (Only works on Windows) .EXAMPLE Remove-DnsTxt '_acme-challenge.example.com' 'txt-value' 'token' Removes a TXT record using a standard string object for GandiTokenInsecure. (Use this on non-Windows) #> } function Save-DnsTxt { [CmdletBinding()] param( [Parameter(ValueFromRemainingArguments)] $ExtraParams ) <# .SYNOPSIS Not required. .DESCRIPTION This provider does not require calling this function to commit changes to DNS records. .PARAMETER ExtraParams This parameter can be ignored and is only used to prevent errors when splatting with more parameters than this function supports. #> } ############################ # Helper Functions ############################ # API Docs # https://doc.livedns.gandi.net function Find-GandiZone { [CmdletBinding()] param( [Parameter(Mandatory,Position=0)] [string]$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:GandiRecordZones) { $script:GandiRecordZones = @{} } # check for the record in the cache if ($script:GandiRecordZones.ContainsKey($RecordName)) { return $script:GandiRecordZones.$RecordName } # 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 $pieces = $RecordName.Split('.') for ($i=0; $i -lt ($pieces.Count-1); $i++) { $zoneTest = $pieces[$i..($pieces.Count-1)] -join '.' Write-Debug "Checking $zoneTest" try { Invoke-RestMethod "https://dns.api.gandi.net/api/v5/domains/$zoneTest" ` @RestParams @script:UseBasic -EA Stop | Out-Null $script:GandiRecordZones.$RecordName = $zoneTest return $zoneTest } catch {} } return $null } |