Add vstring.Base64

errors.go

@@ -54,6 +54,10 @@ const (
 
  CheckNameRegexp = "regexp"
 
+ CheckNameBase64 = "base64"
+ CheckNameBase64URL = "base64url"
+ CheckNameBase64RawURL = "base64rawurl"
+
  CheckNameAlpha = "alpha"
  CheckNameAlphanumeric = "alphanum"
  CheckNameNumeric = "numeric"

vstring/base64.go

@@ -0,0 +1,49 @@
+package vstring
+
+import (
+ "regexp"
+
+ "github.com/SladeThe/yav"
+)
+
+var (
+ base64Regex = regexp.MustCompile("^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$")
+ base64URLRegex = regexp.MustCompile("^(?:[A-Za-z0-9-_]{4})*(?:[A-Za-z0-9-_]{2}==|[A-Za-z0-9-_]{3}=|[A-Za-z0-9-_]{4})$")
+ base64RawURLRegex = regexp.MustCompile("^(?:[A-Za-z0-9-_]{4})*[A-Za-z0-9-_]{2,4}$")
+)
+
+func Base64(name string, value string) (stop bool, err error) {
+ if !base64Regex.MatchString(value) {
+ return true, yav.Error{
+ CheckName: yav.CheckNameBase64,
+ ValueName: name,
+ Value: value,
+ }
+ }
+
+ return false, nil
+}
+
+func Base64URL(name string, value string) (stop bool, err error) {
+ if !base64URLRegex.MatchString(value) {
+ return true, yav.Error{
+ CheckName: yav.CheckNameBase64URL,
+ ValueName: name,
+ Value: value,
+ }
+ }
+
+ return false, nil
+}
+
+func Base64RawURL(name string, value string) (stop bool, err error) {
+ if !base64RawURLRegex.MatchString(value) {
+ return true, yav.Error{
+ CheckName: yav.CheckNameBase64RawURL,
+ ValueName: name,
+ Value: value,
+ }
+ }
+
+ return false, nil
+}