Normalize zone-style DNS record content from Dynu API

internal/dynuclient/client.go

@@ -9,6 +9,7 @@ import (
 	"io"
 	"net/http"
 	"net/url"
+	"regexp"
 	"strings"
 	"time"
 )
@@ -189,6 +190,9 @@ func (c *Client) ListDNSRecords(ctx context.Context, domainID int64) ([]DNSRecor
 	if err := c.doRequest(ctx, http.MethodGet, fmt.Sprintf("/dns/%d/record", domainID), nil, &resp); err != nil {
 		return nil, err
 	}
+	for i := range resp.DNSRecords {
+		normalizeDNSRecord(&resp.DNSRecords[i])
+	}
 	return resp.DNSRecords, nil
 }
 
@@ -197,6 +201,7 @@ func (c *Client) GetDNSRecord(ctx context.Context, domainID int64, recordID int6
 	if err := c.doRequest(ctx, http.MethodGet, fmt.Sprintf("/dns/%d/record/%d", domainID, recordID), nil, &resp); err != nil {
 		return nil, err
 	}
+	normalizeDNSRecord(&resp.DNSRecord)
 	return &resp.DNSRecord, nil
 }
 
@@ -205,6 +210,7 @@ func (c *Client) CreateDNSRecord(ctx context.Context, domainID int64, req Create
 	if err := c.doRequest(ctx, http.MethodPost, fmt.Sprintf("/dns/%d/record", domainID), buildDNSRecordUpsertPayload(req.RecordType, req.NodeName, req.Content, req.TTL, req.State, req.Group, req.Host), &resp); err != nil {
 		return nil, err
 	}
+	normalizeDNSRecord(&resp.DNSRecord)
 	return &resp.DNSRecord, nil
 }
 
@@ -213,6 +219,7 @@ func (c *Client) UpdateDNSRecord(ctx context.Context, domainID int64, recordID i
 	if err := c.doRequest(ctx, http.MethodPut, fmt.Sprintf("/dns/%d/record/%d", domainID, recordID), buildDNSRecordUpsertPayload(req.RecordType, req.NodeName, req.Content, req.TTL, req.State, req.Group, req.Host), &resp); err != nil {
 		return nil, err
 	}
+	normalizeDNSRecord(&resp.DNSRecord)
 	return &resp.DNSRecord, nil
 }
 
@@ -338,3 +345,18 @@ func buildDNSRecordUpsertPayload(recordType string, nodeName string, content str
 
 	return payload
 }
+
+var zoneStyleContentPattern = regexp.MustCompile(`(?i)^\S+\.\s+\d+\s+IN\s+\S+\s+(.+)$`)
+
+func normalizeDNSRecord(record *DNSRecord) {
+	if record == nil {
+		return
+	}
+
+	matches := zoneStyleContentPattern.FindStringSubmatch(strings.TrimSpace(record.Content))
+	if len(matches) != 2 {
+		return
+	}
+
+	record.Content = strings.TrimSpace(matches[1])
+}

internal/dynuclient/client_test.go

@@ -191,6 +191,43 @@ func TestClientCreateDNSRecordSendsIPv4AddressForARecord(t *testing.T) {
 	}
 }
 
+func TestClientCreateDNSRecordNormalizesZoneStyleContent(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost || r.URL.Path != "/dns/1001/record" {
+			t.Fatalf("unexpected request %s %s", r.Method, r.URL.Path)
+		}
+
+		_ = json.NewEncoder(w).Encode(map[string]any{
+			"statusCode": 200,
+			"id":         10,
+			"domainId":   1001,
+			"domainName": "example.com",
+			"nodeName":   "www",
+			"hostname":   "www.example.com",
+			"recordType": "A",
+			"content":    "www.example.com. 300 IN A 167.179.167.166",
+			"ttl":        300,
+			"state":      true,
+		})
+	}))
+	defer server.Close()
+
+	client := dynuclient.New("test-key", dynuclient.WithBaseURL(server.URL), dynuclient.WithHTTPClient(server.Client()))
+	record, err := client.CreateDNSRecord(context.Background(), 1001, dynuclient.CreateDNSRecordRequest{
+		NodeName:   "www",
+		RecordType: "A",
+		Content:    "167.179.167.166",
+		TTL:        300,
+	})
+	if err != nil {
+		t.Fatalf("CreateDNSRecord() error = %v", err)
+	}
+
+	if record.Content != "167.179.167.166" {
+		t.Fatalf("expected normalized content, got %q", record.Content)
+	}
+}
+
 func TestClientDoRequestTopLevelAPIExceptionPayload(t *testing.T) {
 	fake := fakedynu.NewServer()
 	defer fake.Close()