clash/rules/provider/domain_strategy.go

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package provider
import (
"github.com/Dreamacro/clash/component/trie"
C "github.com/Dreamacro/clash/constant"
"github.com/Dreamacro/clash/log"
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"golang.org/x/net/idna"
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)
type domainStrategy struct {
count int
domainRules *trie.DomainTrie[bool]
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}
func (d *domainStrategy) Match(metadata *C.Metadata) bool {
return d.domainRules != nil && d.domainRules.Search(metadata.Host) != nil
}
func (d *domainStrategy) Count() int {
return d.count
}
func (d *domainStrategy) ShouldResolveIP() bool {
return false
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}
func (d *domainStrategy) OnUpdate(rules []string) {
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domainTrie := trie.New[bool]()
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count := 0
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for _, rule := range rules {
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actualDomain, _ := idna.ToASCII(rule)
err := domainTrie.Insert(actualDomain, true)
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if err != nil {
log.Warnln("invalid domain:[%s]", rule)
} else {
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count++
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}
}
d.domainRules = domainTrie
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d.count = count
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}
func NewDomainStrategy() *domainStrategy {
return &domainStrategy{}
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}