update solid compiler

go/validation/validation.go

@@ -198,6 +198,56 @@ func ValidateZipCode(zip string) error {
 	return nil
 }
 
+func ValidateEmail(email string) error {
+	err := errors.New("Invalid email address.")
+
+	if email == "" {
+		return err
+	}
+
+	emailParts := strings.Split(email, "@")
+	if len(emailParts) != 2 {
+		return err
+	}
+
+	account := emailParts[0]
+	address := emailParts[1]
+
+	lenErr := errors.New("Email address is too long.")
+	if len(account) > 64 {
+		return lenErr
+	} else if len(address) > 255 {
+		return lenErr
+	}
+
+	domainParts := strings.Split(address, ".")
+	for _, part := range domainParts {
+		if len(part) > 63 {
+			return lenErr
+		}
+	}
+
+	re := regexp.MustCompile(`^[-!#$%&'*+/0-9=?A-Z^_a-z` + "`" + `{|}~](\.?[-!#$%&'*+/0-9=?A-Z^_a-z` + "`" + `{|}~])*@[a-zA-Z0-9](-*\.?[a-zA-Z0-9])*\.[a-zA-Z](-?[a-zA-Z0-9])+$`)
+	if !re.MatchString(email) {
+		return err
+	}
+
+	return nil
+}
+
+func ValidateUsername(username string) error {
+	if len(username) < 5 || len(username) > 50 {
+		return errors.New("Username must have 5-50 characters.")
+	}
+
+	isAlphanumeric, _ := regexp.MatchString(`^[A-Za-z0-9]*$`, username)
+	if !isAlphanumeric {
+		return errors.New("Username must only contain alphanumeric characters.")
+	}
+
+	return nil
+}
+
 func ValidateUrl(url string) error {
 	err := errors.New("Invalid URL.")