test federationinfo validation

modules/validation/validatable.go

@@ -0,0 +1,66 @@
+// Copyright 2023 The forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package validation
+
+import (
+	"fmt"
+	"strings"
+	"unicode/utf8"
+
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+type Validateable interface {
+	Validate() []string
+}
+
+func IsValid(v Validateable) (bool, error) {
+	if err := v.Validate(); len(err) > 0 {
+		errString := strings.Join(err, "\n")
+		return false, fmt.Errorf(errString)
+	}
+
+	return true, nil
+}
+
+func ValidateNotEmpty(value any, fieldName string) []string {
+	isValid := true
+	switch v := value.(type) {
+	case string:
+		if v == "" {
+			isValid = false
+		}
+	case timeutil.TimeStamp:
+		if v.IsZero() {
+			isValid = false
+		}
+	default:
+		isValid = false
+	}
+
+	if isValid {
+		return []string{}
+	}
+	return []string{fmt.Sprintf("Field %v may not be empty", fieldName)}
+}
+
+func ValidateMaxLen(value string, maxLen int, fieldName string) []string {
+	if utf8.RuneCountInString(value) > maxLen {
+		return []string{fmt.Sprintf("Value in field %v was longer than %v", fieldName, maxLen)}
+	}
+	return []string{}
+}
+
+func ValidateOneOf(value any, allowed []any) []string {
+	for _, allowedElem := range allowed {
+		if value == allowedElem {
+			return []string{}
+		}
+	}
+	return []string{fmt.Sprintf("Value %v is not contained in allowed values [%v]", value, allowed)}
+}
+
+func ValidateSuffix(str, suffix string) bool {
+	return strings.HasSuffix(str, suffix)
+}