Get rid of duplicate variable definitions

config.go

@@ -68,9 +68,8 @@ var config = configuration{
 		binaryFile: "coredns",  // only filename, no path
 		coreFile:   "Corefile", // only filename, no path
 		FilteringConfig: dnsforward.FilteringConfig{
-			ProtectionEnabled:   true,
-			FilteringEnabled:    true,
-			SafeBrowsingEnabled: false,
+			ProtectionEnabled:  true, // whether or not use any of dnsfilter features
+			FilteringEnabled:   true, // whether or not use filter lists
 			BlockedResponseTTL: 10,   // in seconds
 		},
 		QueryLogEnabled: true,

coredns.go

@@ -32,7 +32,7 @@ func generateServerConfig() dnsforward.ServerConfig {
 
 	newconfig := dnsforward.ServerConfig{
 		UDPListenAddr:   &net.UDPAddr{Port: config.CoreDNS.Port},
-		BlockedResponseTTL: config.CoreDNS.BlockedResponseTTL,
+		FilteringConfig: config.CoreDNS.FilteringConfig,
 		Filters:         filters,
 	}
 

dnsforward/dnsforward.go

@@ -76,17 +76,14 @@ func (s *Server) RUnlock() {
 type FilteringConfig struct {
 	ProtectionEnabled  bool   `yaml:"protection_enabled"`
 	FilteringEnabled   bool   `yaml:"filtering_enabled"`
-	SafeBrowsingEnabled bool   `yaml:"safebrowsing_enabled"`
-	SafeSearchEnabled   bool   `yaml:"safesearch_enabled"`
-	ParentalEnabled     bool   `yaml:"parental_enabled"`
-	ParentalSensitivity int    `yaml:"parental_sensitivity"`
-	BlockedResponseTTL  uint32 `yaml:"blocked_response_ttl"`
+	BlockedResponseTTL uint32 `yaml:"blocked_response_ttl"` // if 0, then default is used (3600)
+
+	dnsfilter.Config `yaml:",inline"`
 }
 
 // The zero ServerConfig is empty and ready for use.
 type ServerConfig struct {
 	UDPListenAddr *net.UDPAddr // if nil, then default is is used (port 53 on *)
-	BlockedResponseTTL uint32       // if 0, then default is used (3600)
 	Upstreams     []Upstream
 	Filters       []dnsfilter.Filter
 
@@ -95,7 +92,7 @@ type ServerConfig struct {
 
 var defaultValues = ServerConfig{
 	UDPListenAddr:   &net.UDPAddr{Port: 53},
-	BlockedResponseTTL: 3600,
+	FilteringConfig: FilteringConfig{BlockedResponseTTL: 3600},
 	Upstreams: []Upstream{
 		//// dns over HTTPS
 		// &dnsOverHTTPS{Address: "https://1.1.1.1/dns-query"},