85 lines
1.8 KiB
Go
85 lines
1.8 KiB
Go
package common
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import (
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"fmt"
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"strconv"
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"strings"
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"github.com/Dreamacro/clash/common/cache"
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"github.com/Dreamacro/clash/component/process"
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C "github.com/Dreamacro/clash/constant"
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"github.com/Dreamacro/clash/log"
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)
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var processCache = cache.NewLRUCache(cache.WithAge(2), cache.WithSize(64))
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type Process struct {
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adapter string
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process string
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nameOnly bool
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ruleExtra *C.RuleExtra
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}
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func (ps *Process) ShouldFindProcess() bool {
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return false
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}
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func (ps *Process) RuleType() C.RuleType {
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return C.Process
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}
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func (ps *Process) Match(metadata *C.Metadata) bool {
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if metadata.Process != "" {
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return strings.EqualFold(metadata.Process, ps.process)
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}
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key := fmt.Sprintf("%s:%s:%s", metadata.NetWork.String(), metadata.SrcIP.String(), metadata.SrcPort)
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if strings.TrimSpace(metadata.Process) == "" {
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cached, hit := processCache.Get(key)
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if !hit {
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srcPort, err := strconv.Atoi(metadata.SrcPort)
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if err != nil {
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processCache.Set(key, "")
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return false
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}
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name, err := process.FindProcessName(metadata.NetWork.String(), metadata.SrcIP, srcPort)
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if err != nil {
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log.Debugln("[Rule] find process name %s error: %s", C.Process.String(), err.Error())
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}
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processCache.Set(key, name)
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cached = name
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}
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metadata.Process = cached.(string)
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}
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return strings.EqualFold(metadata.Process, ps.process)
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}
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func (ps *Process) Adapter() string {
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return ps.adapter
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}
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func (ps *Process) Payload() string {
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return ps.process
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}
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func (ps *Process) ShouldResolveIP() bool {
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return false
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}
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func (ps *Process) RuleExtra() *C.RuleExtra {
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return ps.ruleExtra
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}
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func NewProcess(process string, adapter string, nameOnly bool, ruleExtra *C.RuleExtra) (*Process, error) {
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return &Process{
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adapter: adapter,
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process: process,
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nameOnly: nameOnly,
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ruleExtra: ruleExtra,
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}, nil
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}
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