package common import ( "golang.org/x/net/idna" "strings" C "github.com/Dreamacro/clash/constant" ) type DomainKeyword struct { *Base keyword string adapter string isIDNA bool } func (dk *DomainKeyword) RuleType() C.RuleType { return C.DomainKeyword } func (dk *DomainKeyword) Match(metadata *C.Metadata) (bool, string) { domain := metadata.RuleHost() return strings.Contains(domain, dk.keyword), dk.adapter } func (dk *DomainKeyword) Adapter() string { return dk.adapter } func (dk *DomainKeyword) Payload() string { keyword := dk.keyword if dk.isIDNA { keyword, _ = idna.ToUnicode(keyword) } return keyword } func NewDomainKeyword(keyword string, adapter string) *DomainKeyword { actualDomainKeyword, _ := idna.ToASCII(keyword) return &DomainKeyword{ Base: &Base{}, keyword: strings.ToLower(actualDomainKeyword), adapter: adapter, isIDNA: keyword != actualDomainKeyword, } } //var _ C.Rule = (*DomainKeyword)(nil)