add recursive cname stub to resolver answer set

api/guestbook.go

@@ -27,8 +27,8 @@ func validateGuestbookEntry(entry *database.GuestbookEntry) []string {
 	}
 
 	messageLength := len(entry.Message)
-	if messageLength < 10 || messageLength > 500 {
-		errors = append(errors, "message must be between 10 and 500 characters")
+	if messageLength > 500 {
+		errors = append(errors, "message cannot be longer than 500 characters")
 	}
 
 	newLines := strings.Count(entry.Message, "\n")
@@ -58,19 +58,17 @@ func SignGuestbookContinuation(context *RequestContext, req *http.Request, resp
 			Name:    name,
 			Message: message,
 		}
-
 		formErrors.Errors = append(formErrors.Errors, validateGuestbookEntry(entry)...)
 
-		if len(formErrors.Errors) > 0 {
-			(*context.TemplateData)["FormError"] = formErrors
-			return failure(context, req, resp)
-		}
-
 		err := verifyHCaptcha(context.Args.HcaptchaSecret, hCaptchaResponse)
 		if err != nil {
 			log.Println(err)
 
-			resp.WriteHeader(http.StatusBadRequest)
+			formErrors.Errors = append(formErrors.Errors, "hCaptcha verification failed")
+		}
+		if len(formErrors.Errors) > 0 {
+			(*context.TemplateData)["FormError"] = formErrors
+			(*context.TemplateData)["EntryForm"] = entry
 			return failure(context, req, resp)
 		}
 

dns/server.go

@@ -23,6 +23,12 @@ func resolveRecursive(dbConn *sql.DB, dnsResolvers []string, domain string, qtyp
 
 	answers := []dns.RR{}
 	for _, record := range internalCnames {
+		cname, err := dns.NewRR(fmt.Sprintf("%s %d IN CNAME %s", record.Name, record.TTL, record.Content))
+		if err != nil {
+			return nil, err
+		}
+		answers = append(answers, cname)
+
 		cnameRecursive, _ := resolveRecursive(dbConn, dnsResolvers, record.Content, qtype, maxDepth-1)
 		answers = append(answers, cnameRecursive...)
 	}

templates/guestbook.html

@@ -17,9 +17,7 @@
 	    {{ if not .EntryForm }}
 	    placeholder="hoi!"
 	    {{ end }}
-	    >{{ if .EntryForm }}{{ .EntryForm.Message }}{{ end }}
-  </textarea>
-
+	    >{{ if .EntryForm }}{{ .EntryForm.Message }}{{ end }}</textarea>
   <div
     class="h-captcha"
     data-sitekey="{{ .HcaptchaArgs.SiteKey }}"