app: add compatibility for previous config

Author: imgk

app/proxy.go

@@ -18,7 +18,9 @@ import (
 
 func init() {
 	caddy.RegisterModule(NoProxy{})
+	caddy.RegisterModule(noProxy{})
 	caddy.RegisterModule(EnvProxy{})
+	caddy.RegisterModule(envProxy{})
 	caddy.RegisterModule(SocksProxy{})
 	caddy.RegisterModule(HttpProxy{})
 }
@@ -52,6 +54,17 @@ func (*NoProxy) Close() error {
 	return nil
 }
 
+type noProxy struct {
+	NoProxy
+}
+
+func (noProxy) CaddyModule() caddy.ModuleInfo {
+	return caddy.ModuleInfo{
+		ID:  "trojan.proxy.no_proxy",
+		New: func() caddy.Module { return new(noProxy) },
+	}
+}
+
 // EnvProxy is ...
 type EnvProxy struct {
 	proxy.Dialer `json:"-,omitempty"`
@@ -86,6 +99,17 @@ func (*EnvProxy) ListenPacket(network, addr string) (net.PacketConn, error) {
 	return nil, errors.New("proxy from environment does not support UDP")
 }
 
+type envProxy struct {
+	EnvProxy
+}
+
+func (envProxy) CaddyModule() caddy.ModuleInfo {
+	return caddy.ModuleInfo{
+		ID:  "trojan.proxy.env_proxy",
+		New: func() caddy.Module { return new(envProxy) },
+	}
+}
+
 // SocksProxy is a caddy module and supports socks5 proxy server.
 // All tcp connections will be sent to proxy server.
 type SocksProxy struct {