filebrowser/rules/rules.go

52 lines
1.0 KiB
Go

package rules
import (
"path/filepath"
"regexp"
"strings"
)
// Checker is a Rules checker.
type Checker interface {
Check(path string) bool
}
// Rule is a allow/disallow rule.
type Rule struct {
Regex bool `json:"regex"`
Allow bool `json:"allow"`
Path string `json:"path"`
Regexp *Regexp `json:"regexp"`
}
// MatchHidden matches paths with a basename
// that begins with a dot.
func MatchHidden(path string) bool {
return strings.HasPrefix(filepath.Base(path), ".")
}
// Matches matches a path against a rule.
func (r *Rule) Matches(path string) bool {
if r.Regex {
return r.Regexp.MatchString(path)
}
return strings.HasPrefix(path, r.Path)
}
// Regexp is a wrapper to the native regexp type where we
// save the raw expression.
type Regexp struct {
Raw string `json:"raw"`
regexp *regexp.Regexp
}
// MatchString checks if a string matches the regexp.
func (r *Regexp) MatchString(s string) bool {
if r.regexp == nil {
r.regexp = regexp.MustCompile(r.Raw)
}
return r.regexp.MatchString(s)
}