feat: Make domain matcher case-insensitive

Author: layou233

common/domain/matcher.go

@@ -2,6 +2,7 @@ package domain
 
 import (
 	"sort"
+	"strings"
 	"unicode/utf8"
 )
 
@@ -13,6 +14,7 @@ func NewMatcher(domains []string, domainSuffix []string) *Matcher {
 	domainList := make([]string, 0, len(domains)+2*len(domainSuffix))
 	seen := make(map[string]bool, len(domainList))
 	for _, domain := range domainSuffix {
+		domain = strings.ToLower(domain)
 		if seen[domain] {
 			continue
 		}
@@ -24,6 +26,7 @@ func NewMatcher(domains []string, domainSuffix []string) *Matcher {
 		}
 	}
 	for _, domain := range domains {
+		domain = strings.ToLower(domain)
 		if seen[domain] {
 			continue
 		}
@@ -35,7 +38,7 @@ func NewMatcher(domains []string, domainSuffix []string) *Matcher {
 }
 
 func (m *Matcher) Match(domain string) bool {
-	return m.set.Has(reverseDomain(domain))
+	return m.set.Has(reverseDomain(strings.ToLower(domain)))
 }
 
 func reverseDomain(domain string) string {

common/domain/matcher_test.go

@@ -5,11 +5,11 @@ import "testing"
 func TestMatcher(t *testing.T) {
 	matcher := NewMatcher(
 		[]string{ // domain
-			"example.com", "example.com.", "example.org",
+			"eXample.com", "example.com.", "example.org",
 		}, []string{ // domain suffix
-			"example.net", ".example.invalid",
+			"example.net", ".exampLe.invalid",
 		})
-	if !matcher.Match("example.com") {
+	if !matcher.Match("exaMple.com") {
 		t.Error("example.com is not matched")
 	}
 	if !matcher.Match("example.com.") {
@@ -30,7 +30,7 @@ func TestMatcher(t *testing.T) {
 	if !matcher.Match("any.one.example.net") {
 		t.Error("any.one.one.example.net is not matched")
 	}
-	if matcher.Match("example.invalid") {
+	if matcher.Match("example.invAlid") {
 		t.Error("example.invalid is matched")
 	}
 	if !matcher.Match("any.example.invalid") {