Move unnecessary functions to internal

proxy/internal/handler_cache.go

@@ -0,0 +1,66 @@
+package internal
+
+import (
+	"errors"
+
+	"github.com/v2ray/v2ray-core/app"
+	"github.com/v2ray/v2ray-core/proxy/common/connhandler"
+	"github.com/v2ray/v2ray-core/proxy/internal/config"
+)
+
+var (
+	inboundFactories  = make(map[string]InboundConnectionHandlerCreator)
+	outboundFactories = make(map[string]OutboundConnectionHandlerCreator)
+
+	ErrorProxyNotFound    = errors.New("Proxy not found.")
+	ErrorNameExists       = errors.New("Proxy with the same name already exists.")
+	ErrorBadConfiguration = errors.New("Bad proxy configuration.")
+)
+
+func RegisterInboundConnectionHandlerFactory(name string, creator InboundConnectionHandlerCreator) error {
+	if _, found := inboundFactories[name]; found {
+		return ErrorNameExists
+	}
+	inboundFactories[name] = creator
+	return nil
+}
+
+func RegisterOutboundConnectionHandlerFactory(name string, creator OutboundConnectionHandlerCreator) error {
+	if _, found := outboundFactories[name]; found {
+		return ErrorNameExists
+	}
+	outboundFactories[name] = creator
+	return nil
+}
+
+func CreateInboundConnectionHandler(name string, space app.Space, rawConfig []byte) (connhandler.InboundConnectionHandler, error) {
+	creator, found := inboundFactories[name]
+	if !found {
+		return nil, ErrorProxyNotFound
+	}
+	if len(rawConfig) > 0 {
+		proxyConfig, err := config.CreateInboundConnectionConfig(name, rawConfig)
+		if err != nil {
+			return nil, err
+		}
+		return creator(space, proxyConfig)
+	}
+	return creator(space, nil)
+}
+
+func CreateOutboundConnectionHandler(name string, space app.Space, rawConfig []byte) (connhandler.OutboundConnectionHandler, error) {
+	creator, found := outboundFactories[name]
+	if !found {
+		return nil, ErrorNameExists
+	}
+
+	if len(rawConfig) > 0 {
+		proxyConfig, err := config.CreateOutboundConnectionConfig(name, rawConfig)
+		if err != nil {
+			return nil, err
+		}
+		return creator(space, proxyConfig)
+	}
+
+	return creator(space, nil)
+}