sing-box/route/rule_item_geosite.go
2023-06-07 20:28:21 +08:00

62 lines
1.3 KiB
Go

package route
import (
"strings"
"github.com/sagernet/sing-box/adapter"
"github.com/sagernet/sing-box/log"
E "github.com/sagernet/sing/common/exceptions"
)
var _ RuleItem = (*GeositeItem)(nil)
type GeositeItem struct {
router adapter.Router
logger log.ContextLogger
codes []string
matchers []adapter.Rule
}
func NewGeositeItem(router adapter.Router, logger log.ContextLogger, codes []string) *GeositeItem {
return &GeositeItem{
router: router,
logger: logger,
codes: codes,
}
}
func (r *GeositeItem) Update() error {
matchers := make([]adapter.Rule, 0, len(r.codes))
for _, code := range r.codes {
matcher, err := r.router.LoadGeosite(code)
if err != nil {
return E.Cause(err, "read geosite")
}
matchers = append(matchers, matcher)
}
r.matchers = matchers
return nil
}
func (r *GeositeItem) Match(metadata *adapter.InboundContext) bool {
for _, matcher := range r.matchers {
if matcher.Match(metadata) {
return true
}
}
return false
}
func (r *GeositeItem) String() string {
description := "geosite="
cLen := len(r.codes)
if cLen == 1 {
description += r.codes[0]
} else if cLen > 3 {
description += "[" + strings.Join(r.codes[:3], " ") + "...]"
} else {
description += "[" + strings.Join(r.codes, " ") + "]"
}
return description
}