add plugins

internal/client/plugin/manager.go

@@ -0,0 +1,70 @@
+package plugin
+
+import (
+	"context"
+	"log"
+	"sync"
+
+	"github.com/gotunnel/pkg/plugin"
+	"github.com/gotunnel/pkg/plugin/builtin"
+	"github.com/gotunnel/pkg/plugin/wasm"
+)
+
+// Manager 客户端 plugin 管理器
+type Manager struct {
+	registry *plugin.Registry
+	cache    *Cache
+	runtime  *wasm.Runtime
+	mu       sync.RWMutex
+}
+
+// NewManager 创建客户端 plugin 管理器
+func NewManager(cacheDir string) (*Manager, error) {
+	ctx := context.Background()
+
+	cache, err := NewCache(cacheDir)
+	if err != nil {
+		return nil, err
+	}
+
+	runtime, err := wasm.NewRuntime(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	registry := plugin.NewRegistry()
+
+	m := &Manager{
+		registry: registry,
+		cache:    cache,
+		runtime:  runtime,
+	}
+
+	// 注册内置 plugins
+	if err := m.registerBuiltins(); err != nil {
+		return nil, err
+	}
+
+	return m, nil
+}
+
+// registerBuiltins 注册内置 plugins
+// 注意: tcp, udp, http, https 是内置类型，直接在 tunnel 中处理
+func (m *Manager) registerBuiltins() error {
+	// 注册 SOCKS5 plugin
+	if err := m.registry.RegisterBuiltin(builtin.NewSOCKS5Plugin()); err != nil {
+		return err
+	}
+	log.Println("[Plugin] Builtin plugins registered: socks5")
+	return nil
+}
+
+// GetHandler 返回指定代理类型的 handler
+func (m *Manager) GetHandler(proxyType string) (plugin.ProxyHandler, error) {
+	return m.registry.Get(proxyType)
+}
+
+// Close 关闭管理器
+func (m *Manager) Close(ctx context.Context) error {
+	return m.runtime.Close(ctx)
+}