67 lines
1.2 KiB
Go
67 lines
1.2 KiB
Go
package common
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import (
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"fmt"
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"strconv"
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"github.com/Dreamacro/clash/common/utils"
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C "github.com/Dreamacro/clash/constant"
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)
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type Port struct {
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*Base
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adapter string
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port string
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ruleType C.RuleType
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portRanges utils.IntRanges[uint16]
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}
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func (p *Port) RuleType() C.RuleType {
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return p.ruleType
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}
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func (p *Port) Match(metadata *C.Metadata) (bool, string) {
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targetPort := metadata.DstPort
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switch p.ruleType {
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case C.InPort:
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targetPort = metadata.InPort
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case C.SrcPort:
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targetPort = metadata.SrcPort
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}
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return p.matchPortReal(targetPort), p.adapter
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}
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func (p *Port) Adapter() string {
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return p.adapter
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}
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func (p *Port) Payload() string {
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return p.port
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}
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func (p *Port) matchPortReal(portRef string) bool {
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port, _ := strconv.Atoi(portRef)
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return p.portRanges.Check(uint16(port))
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}
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func NewPort(port string, adapter string, ruleType C.RuleType) (*Port, error) {
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portRanges, err := utils.NewIntRanges[uint16](port)
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if err != nil {
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return nil, fmt.Errorf("%w, %w", errPayload, err)
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}
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if len(portRanges) == 0 {
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return nil, errPayload
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}
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return &Port{
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Base: &Base{},
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adapter: adapter,
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port: port,
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ruleType: ruleType,
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portRanges: portRanges,
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}, nil
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}
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var _ C.Rule = (*Port)(nil)
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