Use more things from the config file

dnscrypt-proxy/common.go

@@ -4,7 +4,6 @@ import (
 	"encoding/binary"
 	"errors"
 	"net"
-	"time"
 )
 
 type CryptoConstruction uint16
@@ -22,9 +21,6 @@ var (
 	MaxDNSPacketSize       = 4096
 	MaxDNSUDPPacketSize    = 1252
 	InitialMinQuestionSize = 256
-	TimeoutMin             = 1 * time.Second
-	TimeoutMax             = 5 * time.Second
-	CertRefreshDelay       = 30 * time.Minute
 )
 
 func PrefixWithSize(packet []byte) ([]byte, error) {

dnscrypt-proxy/main.go

@@ -58,7 +58,7 @@ func (proxy *Proxy) StartProxy() {
 		}
 	}
 	for {
-		time.Sleep(CertRefreshDelay)
+		time.Sleep(proxy.certRefreshDelay)
 		proxy.serversInfo.refresh(proxy)
 	}
 }
@@ -155,7 +155,11 @@ func (proxy *Proxy) processIncomingQuery(serverInfo *ServerInfo, serverProto str
 	if len(query) < MinDNSPacketSize {
 		return
 	}
-	pluginsState := NewPluginsState()
+	clientProto := "udp"
+	if clientAddr == nil {
+		clientProto = "tcp"
+	}
+	pluginsState := NewPluginsState(clientProto)
 	query, _ = pluginsState.ApplyQueryPlugins(query)
 	encryptedQuery, clientNonce, err := proxy.Encrypt(serverInfo, query, serverProto)
 	if err != nil {

dnscrypt-proxy/plugins.go

@@ -29,11 +29,11 @@ type Plugin interface {
 	Eval(pluginsState *PluginsState, msg *dns.Msg) error
 }
 
-func NewPluginsState() PluginsState {
+func NewPluginsState(proto string) PluginsState {
 	queryPlugins := &[]Plugin{Plugin(new(PluginGetSetPayloadSize))}
 	responsePlugins := &[]Plugin{}
 	return PluginsState{action: PluginsActionForward, maxPayloadSize: MaxDNSUDPPacketSize - ResponseOverhead,
-		queryPlugins: queryPlugins, responsePlugins: responsePlugins}
+		queryPlugins: queryPlugins, responsePlugins: responsePlugins, proto: proto}
 }
 
 func (pluginsState *PluginsState) ApplyQueryPlugins(packet []byte) ([]byte, error) {

dnscrypt-proxy/serversInfo.go

@@ -107,7 +107,7 @@ func (serversInfo *ServersInfo) fetchServerInfo(proxy *Proxy, name string, stamp
 		SharedKey:          certInfo.SharedKey,
 		CryptoConstruction: certInfo.CryptoConstruction,
 		Name:               name,
-		Timeout:            TimeoutMin,
+		Timeout:            proxy.timeout,
 		UDPAddr:            remoteUDPAddr,
 		TCPAddr:            remoteTCPAddr,
 	}