67 lines
1.6 KiB
Go
67 lines
1.6 KiB
Go
// Copyright 2021 Frédéric Guillot. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package validator // import "miniflux.app/validator"
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import (
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"errors"
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"fmt"
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"net/url"
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"regexp"
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"miniflux.app/locale"
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)
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// ValidationError represents a validation error.
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type ValidationError struct {
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TranslationKey string
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}
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// NewValidationError initializes a validation error.
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func NewValidationError(translationKey string) *ValidationError {
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return &ValidationError{TranslationKey: translationKey}
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}
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func (v *ValidationError) String() string {
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return locale.NewPrinter("en_US").Printf(v.TranslationKey)
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}
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func (v *ValidationError) Error() error {
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return errors.New(v.String())
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}
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// ValidateRange makes sure the offset/limit values are valid.
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func ValidateRange(offset, limit int) error {
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if offset < 0 {
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return fmt.Errorf(`Offset value should be >= 0`)
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}
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if limit < 0 {
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return fmt.Errorf(`Limit value should be >= 0`)
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}
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return nil
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}
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// ValidateDirection makes sure the sorting direction is valid.
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func ValidateDirection(direction string) error {
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switch direction {
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case "asc", "desc":
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return nil
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}
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return fmt.Errorf(`Invalid direction, valid direction values are: "asc" or "desc"`)
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}
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// IsValidRegex verifies if the regex can be compiled.
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func IsValidRegex(expr string) bool {
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_, err := regexp.Compile(expr)
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return err == nil
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}
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// IsValidURL verifies if the provided value is a valid absolute URL.
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func IsValidURL(absoluteURL string) bool {
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_, err := url.ParseRequestURI(absoluteURL)
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return err == nil
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}
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