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path: root/vendor/github.com/superseriousbusiness/oauth2/v4/manage/util.go
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package manage

import (
	"net/url"
	"strings"

	"github.com/superseriousbusiness/oauth2/v4/errors"
)

type (
	// ValidateURIHandler validates that redirectURI is contained in baseURI
	ValidateURIHandler func(baseURI, redirectURI string) error
)

// DefaultValidateURI validates that redirectURI is contained in baseURI
func DefaultValidateURI(baseURI string, redirectURI string) error {
	base, err := url.Parse(baseURI)
	if err != nil {
		return err
	}

	redirect, err := url.Parse(redirectURI)
	if err != nil {
		return err
	}
	if !strings.HasSuffix(redirect.Host, base.Host) {
		return errors.ErrInvalidRedirectURI
	}
	return nil
}