78 lines
1.8 KiB
Go
78 lines
1.8 KiB
Go
package provider
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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/log"
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"strings"
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)
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type classicalStrategy struct {
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rules []C.Rule
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count int
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shouldResolveIP bool
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parse func(tp, payload, target string, params []string) (parsed C.Rule, parseErr error)
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}
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func (c *classicalStrategy) Match(metadata *C.Metadata) bool {
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for _, rule := range c.rules {
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if rule.Match(metadata) {
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return true
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}
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}
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return false
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}
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func (c *classicalStrategy) Count() int {
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return c.count
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}
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func (c *classicalStrategy) ShouldResolveIP() bool {
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return c.shouldResolveIP
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}
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func (c *classicalStrategy) OnUpdate(rules []string) {
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var classicalRules []C.Rule
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shouldResolveIP := false
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for _, rawRule := range rules {
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ruleType, rule, params := ruleParse(rawRule)
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r, err := c.parse(ruleType, rule, "", params)
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if err != nil {
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log.Warnln("parse rule error:[%s]", err.Error())
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} else {
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if !shouldResolveIP {
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shouldResolveIP = r.ShouldResolveIP()
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}
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classicalRules = append(classicalRules, r)
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}
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}
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c.rules = classicalRules
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c.count = len(classicalRules)
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}
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func ruleParse(ruleRaw string) (string, string, []string) {
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item := strings.Split(ruleRaw, ",")
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if len(item) == 1 {
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return "", item[0], nil
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} else if len(item) == 2 {
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return item[0], item[1], nil
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} else if len(item) > 2 {
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return item[0], item[1], item[2:]
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}
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return "", "", nil
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}
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func NewClassicalStrategy(parse func(tp, payload, target string, params []string) (parsed C.Rule, parseErr error)) *classicalStrategy {
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return &classicalStrategy{rules: []C.Rule{}, parse: func(tp, payload, target string, params []string) (parsed C.Rule, parseErr error) {
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switch tp {
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case "MATCH":
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return nil, fmt.Errorf("unsupported rule type on rule-set")
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default:
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return parse(tp, payload, target, params)
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}
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}}
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}
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