API: Add new Get Inbound User (#3644)

* Add GetInboundUser in proto

* Add get user logic for all existing inbounds

* Add inbounduser command

* Add option to get all users

* Fix shadowsocks2022 config

* Fix init users in shadowsocks2022

* Fix copy

* Add inbound user count command

This api costs much less than get inbound user, could be useful in some case

* Update from latest main

app/proxyman/command/command.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/inbound"
 	"github.com/xtls/xray-core/features/outbound"
@@ -98,6 +99,46 @@ func (s *handlerServer) AlterInbound(ctx context.Context, request *AlterInboundR
 	return &AlterInboundResponse{}, operation.ApplyInbound(ctx, handler)
 }
 
+func (s *handlerServer) GetInboundUsers(ctx context.Context, request *GetInboundUserRequest) (*GetInboundUserResponse, error) {
+	handler, err := s.ihm.GetHandler(ctx, request.Tag)
+	if err != nil {
+		return nil, errors.New("failed to get handler: ", request.Tag).Base(err)
+	}
+	p, err := getInbound(handler)
+	if err != nil {
+		return nil, err
+	}
+	um, ok := p.(proxy.UserManager)
+	if !ok {
+		return nil, errors.New("proxy is not a UserManager")
+	}
+	if len(request.Email) > 0 {
+		return &GetInboundUserResponse{Users: []*protocol.User{protocol.ToProtoUser(um.GetUser(ctx, request.Email))}}, nil
+	}
+	var result = make([]*protocol.User, 0, 100)
+	users := um.GetUsers(ctx)
+	for _, u := range users {
+		result = append(result, protocol.ToProtoUser(u))
+	}
+	return &GetInboundUserResponse{Users: result}, nil
+}
+
+func (s *handlerServer) GetInboundUsersCount(ctx context.Context, request *GetInboundUserRequest) (*GetInboundUsersCountResponse, error) {
+	handler, err := s.ihm.GetHandler(ctx, request.Tag)
+	if err != nil {
+		return nil, errors.New("failed to get handler: ", request.Tag).Base(err)
+	}
+	p, err := getInbound(handler)
+	if err != nil {
+		return nil, err
+	}
+	um, ok := p.(proxy.UserManager)
+	if !ok {
+		return nil, errors.New("proxy is not a UserManager")
+	}
+	return &GetInboundUsersCountResponse{Count: um.GetUsersCount(ctx)}, nil
+}
+
 func (s *handlerServer) AddOutbound(ctx context.Context, request *AddOutboundRequest) (*AddOutboundResponse, error) {
 	if err := core.AddOutboundHandler(s.s, request.Outbound); err != nil {
 		return nil, err