Improve: add DOMAIN rule

config/config.go

@@ -322,6 +322,8 @@ func (c *Config) parseRules(cfg *ini.File) error {
 		}
 		rule = trimArr(rule)
 		switch rule[0] {
+		case "DOMAIN":
+			rules = append(rules, R.NewDomain(rule[1], rule[2]))
 		case "DOMAIN-SUFFIX":
 			rules = append(rules, R.NewDomainSuffix(rule[1], rule[2]))
 		case "DOMAIN-KEYWORD":

constant/rule.go

@@ -2,7 +2,8 @@ package constant
 
 // Rule Type
 const (
-	DomainSuffix RuleType = iota
+	Domain RuleType = iota
+	DomainSuffix
 	DomainKeyword
 	GEOIP
 	IPCIDR
@@ -13,6 +14,8 @@ type RuleType int
 
 func (rt RuleType) String() string {
 	switch rt {
+	case Domain:
+		return "Domain"
 	case DomainSuffix:
 		return "DomainSuffix"
 	case DomainKeyword:

rules/domian.go

@@ -0,0 +1,36 @@
+package rules
+
+import (
+	C "github.com/Dreamacro/clash/constant"
+)
+
+type Domain struct {
+	domain  string
+	adapter string
+}
+
+func (d *Domain) RuleType() C.RuleType {
+	return C.Domain
+}
+
+func (d *Domain) IsMatch(addr *C.Addr) bool {
+	if addr.AddrType != C.AtypDomainName {
+		return false
+	}
+	return addr.Host == d.domain
+}
+
+func (d *Domain) Adapter() string {
+	return d.adapter
+}
+
+func (d *Domain) Payload() string {
+	return d.domain
+}
+
+func NewDomain(domain string, adapter string) *Domain {
+	return &Domain{
+		domain:  domain,
+		adapter: adapter,
+	}
+}