Implement the nofilter filter

dnscrypt-proxy/config.go

@@ -38,6 +38,7 @@ type Config struct {
 	SourcesConfig         map[string]SourceConfig `toml:"sources"`
 	SourceRequireDNSSEC   bool                    `toml:"require_dnssec"`
 	SourceRequireNoLog    bool                    `toml:"require_nolog"`
+	SourceRequireNoFilter bool                    `toml:"require_nofilter"`
 	SourceIPv4            bool                    `toml:"ipv4_servers"`
 	SourceIPv6            bool                    `toml:"ipv6_servers"`
 	MaxClients            uint32                  `toml:"max_clients"`
@@ -58,6 +59,7 @@ func newConfig() Config {
 		CacheMinTTL:           60,
 		CacheMaxTTL:           8600,
 		SourceRequireNoLog:    true,
+		SourceRequireNoFilter: true,
 		SourceIPv4:            true,
 		SourceIPv6:            false,
 		MaxClients:            100,
@@ -215,6 +217,9 @@ func ConfigLoad(proxy *Proxy, svcFlag *string, config_file string) error {
 	if config.SourceRequireNoLog {
 		requiredProps |= ServerInformalPropertyNoLog
 	}
+	if config.SourceRequireNoFilter {
+		requiredProps |= ServerInformalPropertyNoFilter
+	}
 
 	for cfgSourceName, cfgSource := range config.SourcesConfig {
 		if cfgSource.URL == "" {

dnscrypt-proxy/serversInfo.go

@@ -28,6 +28,7 @@ type ServerInformalProperties uint64
 const (
 	ServerInformalPropertyDNSSEC   = ServerInformalProperties(1) << 0
 	ServerInformalPropertyNoLog    = ServerInformalProperties(1) << 1
+	ServerInformalPropertyNoFilter = ServerInformalProperties(1) << 2
 )
 
 type RegisteredServer struct {