add persistent proxy/visitor store with CRUD API and web UI (#5188)

client/configmgmt/types.go

@@ -0,0 +1,42 @@
+package configmgmt
+
+import (
+	"errors"
+	"time"
+
+	"github.com/fatedier/frp/client/proxy"
+	v1 "github.com/fatedier/frp/pkg/config/v1"
+)
+
+var (
+	ErrInvalidArgument = errors.New("invalid argument")
+	ErrNotFound        = errors.New("not found")
+	ErrConflict        = errors.New("conflict")
+	ErrStoreDisabled   = errors.New("store disabled")
+	ErrApplyConfig     = errors.New("apply config failed")
+)
+
+type ConfigManager interface {
+	ReloadFromFile(strict bool) error
+
+	ReadConfigFile() (string, error)
+	WriteConfigFile(content []byte) error
+
+	GetProxyStatus() []*proxy.WorkingStatus
+	IsStoreProxyEnabled(name string) bool
+	StoreEnabled() bool
+
+	ListStoreProxies() ([]v1.ProxyConfigurer, error)
+	GetStoreProxy(name string) (v1.ProxyConfigurer, error)
+	CreateStoreProxy(cfg v1.ProxyConfigurer) error
+	UpdateStoreProxy(name string, cfg v1.ProxyConfigurer) error
+	DeleteStoreProxy(name string) error
+
+	ListStoreVisitors() ([]v1.VisitorConfigurer, error)
+	GetStoreVisitor(name string) (v1.VisitorConfigurer, error)
+	CreateStoreVisitor(cfg v1.VisitorConfigurer) error
+	UpdateStoreVisitor(name string, cfg v1.VisitorConfigurer) error
+	DeleteStoreVisitor(name string) error
+
+	GracefulClose(d time.Duration)
+}