New provider: Loopia DNS service provider (#2140)

Co-authored-by: Tom Limoncelli <tlimoncelli@stackoverflow.com>

providers/loopia/convert.go

@@ -0,0 +1,66 @@
+package loopia
+
+// Convert the provider's native record description to models.RecordConfig.
+
+import (
+	"fmt"
+
+	"github.com/StackExchange/dnscontrol/v3/models"
+)
+
+// nativeToRecord takes a DNS record from Loopia and returns a native RecordConfig struct.
+func nativeToRecord(zr zoneRecord, origin string, subdomain string) (rc *models.RecordConfig, err error) {
+	record := zr.GetZR()
+
+	rc = &models.RecordConfig{
+		TTL:      record.TTL,
+		Original: record,
+		Type:     record.Type,
+	}
+	rc.SetLabel(subdomain, origin)
+	rc.SetTarget(record.Rdata)
+
+	switch rtype := record.Type; rtype {
+	case "CAA":
+		err = rc.SetTargetCAAString(record.Rdata)
+	case "MX":
+		err = rc.SetTargetMX(record.Priority, record.Rdata)
+	case "NAPTR":
+		err = rc.SetTargetNAPTRString(record.Rdata)
+	case "TXT":
+		err = rc.SetTargetTXT(record.Rdata)
+	default:
+		err = rc.PopulateFromString(rtype, record.Rdata, origin)
+	}
+	if err != nil {
+		return nil, fmt.Errorf("unparsable record received from loopia: %w", err)
+	}
+
+	return rc, nil
+}
+
+func recordToNative(rc *models.RecordConfig, id ...uint32) paramStruct {
+	//rc is the record from dnscontrol to loopia
+	zrec := zRec{}
+	zrec.Type = rc.Type
+	zrec.TTL = rc.TTL
+	zrec.Rdata = rc.GetTargetCombined()
+
+	if rc.Original != nil {
+		zrec.RecordID = rc.Original.(*zRec).RecordID
+	} else if len(id) > 0 {
+		zrec.RecordID = id[0]
+	}
+	switch zrec.Type {
+	case "TXT":
+		zrec.Rdata = rc.GetTargetTXTJoined()
+	case "MX":
+		zrec.Priority = rc.MxPreference
+		zrec.Rdata = rc.GetTargetField()
+	case "SRV":
+		zrec.Priority = rc.SrvPriority
+	}
+	// fmt.Printf("r2n:zr %+v\n", zrec)
+
+	return zrec.SetPS()
+}