validate dns entry does not contain whitespace (#2512)

controllers/dns_test.go

@@ -400,6 +400,19 @@ func TestValidateDNSCreate(t *testing.T) {
 		assert.NotNil(t, err)
 		assert.Contains(t, err.Error(), "Field validation for 'Name' failed on the 'name_unique' tag")
 	})
+	t.Run("WhiteSpace", func(t *testing.T) {
+		entry := models.DNSEntry{Address: "10.10.10.5", Name: "white space", Network: "skynet"}
+		err := logic.ValidateDNSCreate(entry)
+		assert.NotNil(t, err)
+		assert.Contains(t, err.Error(), "Field validation for 'Name' failed on the 'whitespace' tag")
+	})
+	t.Run("AllSpaces", func(t *testing.T) {
+		entry := models.DNSEntry{Address: "10.10.10.5", Name: "     ", Network: "skynet"}
+		err := logic.ValidateDNSCreate(entry)
+		assert.NotNil(t, err)
+		assert.Contains(t, err.Error(), "Field validation for 'Name' failed on the 'whitespace' tag")
+	})
+
 }
 
 func createHost() {

logic/dns.go

@@ -3,6 +3,7 @@ package logic
 import (
 	"encoding/json"
 	"os"
+	"regexp"
 	"sort"
 
 	validator "github.com/go-playground/validator/v10"
@@ -203,6 +204,11 @@ func ValidateDNSCreate(entry models.DNSEntry) error {
 
 	v := validator.New()
 
+	_ = v.RegisterValidation("whitespace", func(f1 validator.FieldLevel) bool {
+		match, _ := regexp.MatchString(`\s`, entry.Name)
+		return !match
+	})
+
 	_ = v.RegisterValidation("name_unique", func(fl validator.FieldLevel) bool {
 		num, err := GetDNSEntryNum(entry.Name, entry.Network)
 		return err == nil && num == 0
@@ -227,6 +233,11 @@ func ValidateDNSUpdate(change models.DNSEntry, entry models.DNSEntry) error {
 
 	v := validator.New()
 
+	_ = v.RegisterValidation("whitespace", func(f1 validator.FieldLevel) bool {
+		match, _ := regexp.MatchString(`\s`, entry.Name)
+		return !match
+	})
+
 	_ = v.RegisterValidation("name_unique", func(fl validator.FieldLevel) bool {
 		//if name & net not changing name we are good
 		if change.Name == entry.Name && change.Network == entry.Network {

models/dnsEntry.go

@@ -42,8 +42,8 @@ type DNSUpdate struct {
 
 // DNSEntry - a DNS entry represented as struct
 type DNSEntry struct {
-	Address  string `json:"address" bson:"address" validate:"ip"`
-	Address6 string `json:"address6" bson:"address6"`
-	Name     string `json:"name" bson:"name" validate:"required,name_unique,min=1,max=192"`
-	Network  string `json:"network" bson:"network" validate:"network_exists"`
+	Address  string `json:"address" validate:"ip"`
+	Address6 string `json:"address6"`
+	Name     string `json:"name" validate:"required,name_unique,min=1,max=192,whitespace"`
+	Network  string `json:"network" validate:"network_exists"`
 }