91 lines
1.9 KiB
Go
91 lines
1.9 KiB
Go
package logic
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import (
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"fmt"
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C "github.com/Dreamacro/clash/constant"
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"github.com/Dreamacro/clash/rules/common"
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)
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type SubRule struct {
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*common.Base
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payload string
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payloadRule C.Rule
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subName string
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subRules map[string][]C.Rule
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shouldFindProcess *bool
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shouldResolveIP *bool
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}
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func NewSubRule(payload, subName string, sub map[string][]C.Rule,
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parse func(tp, payload, target string, params []string, subRules map[string][]C.Rule) (parsed C.Rule, parseErr error)) (*SubRule, error) {
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payloadRule, err := ParseRuleByPayload(fmt.Sprintf("(%s)", payload), parse)
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if err != nil {
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return nil, err
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}
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if len(payloadRule) != 1 {
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return nil, fmt.Errorf("Sub-Rule rule must contain one rule")
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}
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return &SubRule{
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Base: &common.Base{},
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payload: payload,
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payloadRule: payloadRule[0],
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subName: subName,
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subRules: sub,
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}, nil
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}
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func (r *SubRule) RuleType() C.RuleType {
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return C.SubRules
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}
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func (r *SubRule) Match(metadata *C.Metadata) (bool, string) {
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return match(metadata, r.subName, r.subRules)
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}
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func match(metadata *C.Metadata, name string, subRules map[string][]C.Rule) (bool, string) {
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for _, rule := range subRules[name] {
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if m, a := rule.Match(metadata); m {
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if rule.RuleType() == C.SubRules {
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match(metadata, rule.Adapter(), subRules)
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} else {
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return m, a
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}
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}
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}
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return false, ""
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}
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func (r *SubRule) ShouldResolveIP() bool {
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if r.shouldResolveIP == nil {
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s := false
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for _, rule := range r.subRules[r.subName] {
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s = s || rule.ShouldResolveIP()
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}
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r.shouldResolveIP = &s
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}
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return *r.shouldResolveIP
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}
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func (r *SubRule) ShouldFindProcess() bool {
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if r.shouldFindProcess == nil {
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s := false
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for _, rule := range r.subRules[r.subName] {
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s = s || rule.ShouldFindProcess()
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}
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r.shouldFindProcess = &s
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}
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return *r.shouldFindProcess
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}
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func (r *SubRule) Adapter() string {
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return r.subName
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}
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func (r *SubRule) Payload() string {
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return r.payload
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}
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