go_gameshield/internal/service/gameshieldbackend.go

package service

import (
	"context"
	"fmt"
	v1 "github.com/go-nunu/nunu-layout-advanced/api/v1"
	"github.com/go-nunu/nunu-layout-advanced/internal/model"
	"github.com/go-nunu/nunu-layout-advanced/internal/repository"
	"github.com/spf13/viper"
	"strconv"
	"strings"
	"time"
)

type GameShieldBackendService interface {
	GetGameShieldBackend(ctx context.Context, id int64) (*model.GameShieldBackend, error)
	GameShieldBackend(ctx context.Context, req *v1.GameShieldBackendArrayRequest) (string, int, error)
	AddGameShieldBackend(ctx context.Context, req *v1.GameShieldBackendArrayRequest) (string, error)
	EditGameShieldBackend(ctx context.Context, req *v1.GameShieldBackendArrayRequest) (string, error)
	DeleteGameShieldBackend(ctx context.Context, id int64) error
	GetGameShieldRequired(ctx context.Context, req *v1.GameShieldBackendArrayRequest) (*v1.GetGameShieldRequiredResponse, int, error)
}

func NewGameShieldBackendService(
	service *Service,
	gameShieldBackendRepository repository.GameShieldBackendRepository,
	gameShieldRepository repository.GameShieldRepository,
	crawlerService CrawlerService,
	gameShieldPublicIpService GameShieldPublicIpService,
	duedate DuedateService,
	formatter FormatterService,
	parser ParserService,
	required RequiredService,
	conf *viper.Viper,
) GameShieldBackendService {
	return &gameShieldBackendService{
		Service:                     service,
		gameShieldBackendRepository: gameShieldBackendRepository,
		gameShieldRepository:        gameShieldRepository,
		crawlerService:              crawlerService,
		gameShieldPublicIpService:   gameShieldPublicIpService,
		duedate:                     duedate,
		formatter:                   formatter,
		parser:                      parser,
		required:                    required,
		Url:                         conf.GetString("crawler.Url"),
	}
}

type gameShieldBackendService struct {
	*Service
	gameShieldBackendRepository repository.GameShieldBackendRepository
	crawlerService              CrawlerService
	gameShieldRepository        repository.GameShieldRepository
	gameShieldPublicIpService   GameShieldPublicIpService
	duedate                     DuedateService
	formatter                   FormatterService
	Url                         string
	parser                      ParserService
	required                    RequiredService
}

func (s *gameShieldBackendService) GetGameShieldRequired(ctx context.Context, req *v1.GameShieldBackendArrayRequest) (*v1.GetGameShieldRequiredResponse, int, error) {
	var res v1.GetGameShieldRequiredResponse
	var err error
	var count int
	if req.Uid == 0 {
		return nil, 0, fmt.Errorf("uid is required")
	}
	res.ExpiredAt, err = s.duedate.NextDueDate(ctx, req.Uid, strconv.Itoa(req.HostId))
	if err != nil {
		return nil, 0, err
	}
	gameShield, err := s.gameShieldRepository.GetGameShieldByHostId(ctx, req.HostId)
	if err != nil {
		return nil, 0, err
	}
	res.RuleId = gameShield.RuleId
	oldBackend, err := s.gameShieldBackendRepository.GetGameShieldBackendByHostId(ctx, req.HostId)
	if err != nil {
		return nil, 0, err
	}
	OldBackend, err := s.formatter.OldFormat(ctx, oldBackend)
	res.Backend, count, err = s.formatter.FormatBackendData(ctx, req, OldBackend)
	if err != nil {
		return nil, 0, err
	}
	res.Cookie, err = s.crawlerService.GetLoginCookie(ctx)
	if err != nil {
		return nil, 0, err
	}
	return &res, count, nil
}
func (s *gameShieldBackendService) GetGameShieldBackend(ctx context.Context, id int64) (*model.GameShieldBackend, error) {
	res, err := s.gameShieldBackendRepository.GetGameShieldBackendById(ctx, id)
	if err != nil {
		return nil, err
	}
	return res, nil
}

func (s *gameShieldBackendService) GameShieldBackend(ctx context.Context, req *v1.GameShieldBackendArrayRequest) (string, int, error) {
	require, count, err := s.GetGameShieldRequired(ctx, req)
	if err != nil {
		return "", 0, err
	}
	tokenUrl := s.Url + "admin/info/rule/edit?&__goadmin_edit_pk=" + strconv.Itoa(require.RuleId) + "_" + req.AppName
	tokens, err := s.crawlerService.GetFormTokens(ctx, tokenUrl, require.Cookie)
	if err != nil {
		return "", 0, err
	}
	dunName := strconv.Itoa(req.Uid) + "_" + strconv.FormatInt(time.Now().Unix(), 10) + "_" + req.AppName
	formData := map[string]interface{}{
		"app_name":             dunName,
		"gateway_group_id":     4,
		"backend":              require.Backend,
		"rule_id":              require.RuleId,
		"expired_at":           require.ExpiredAt,
		"max_device_count":     0,
		"__go_admin_previous_": tokens["previous"],
		"__go_admin_t_":        tokens["t"],
	}
	sendUrl := s.Url + "admin/edit/rule"
	respBody, err := s.crawlerService.SendFormData(ctx, sendUrl, require.Cookie, formData)
	if err != nil {
		return "", 0, err
	}
	// 解析响应内容中的 alert 消息
	res, err := s.parser.ParseAlert(string(respBody))
	if err != nil {
		return "", 0, err
	}
	if res != "" {
		return "", 0, fmt.Errorf(res)
	}
	KeyAndField, err := s.required.GetKeyAndField(ctx, dunName, "rule_id")
	if err != nil {
		return "", 0, err
	}
	if err := s.gameShieldRepository.UpdateGameShieldByHostId(ctx, &model.GameShield{Id: req.HostId, Key: KeyAndField.Key, DunName: dunName}); err != nil {
		return "", 0, err
	}
	return res, count, nil
}

func (s *gameShieldBackendService) AddGameShieldBackend(ctx context.Context, req *v1.GameShieldBackendArrayRequest) (string, error) {
	res, count, err := s.GameShieldBackend(ctx, req)
	if err != nil {
		return "", err
	}
	saveData, err := s.formatter.TidyFormatBackendData(ctx, req, count)
	if err != nil {
		return "", err
	}
	if err := s.SaveGameShieldBackend(ctx, saveData, req.HostId); err != nil {
		return "", err
	}
	return res, nil
}
func (s *gameShieldBackendService) EditGameShieldBackend(ctx context.Context, req *v1.GameShieldBackendArrayRequest) (string, error) {
	for _, v := range req.Items {
		if err := s.gameShieldBackendRepository.EditGameShieldBackend(ctx, &v); err != nil {
			return "", err
		}
	}
	res, _, err := s.GameShieldBackend(ctx, req)
	if err != nil {
		return "", err
	}
	return res, nil
}

func (s *gameShieldBackendService) DeleteGameShieldBackend(ctx context.Context, id int64) error {
	if err := s.gameShieldBackendRepository.DeleteGameShieldBackend(ctx, id); err != nil {
		return err
	}
	return nil
}

func (s *gameShieldBackendService) SaveGameShieldBackend(ctx context.Context, req map[string]v1.SendGameShieldBackend, hostId int) error {
	for k, v := range req {
		parts := strings.Split(v.Addr[0], ":")
		keyName := strings.Split(k, "key")[1]
		key, err := strconv.Atoi(keyName)
		if err != nil {
			return err
		}
		if err := s.gameShieldBackendRepository.AddGameShieldBackend(ctx,
			&model.GameShieldBackend{
				HostId:          hostId,
				Key:             key,
				SourceMachineIP: parts[0],
				Protocol:        v.Protocol,
				ProxyAddr:       v.ProxyAddr,
				ConnectPort:     parts[1],
				PublicIp:        v.SdkIp,
				SdkPort:         strconv.Itoa(v.SdkPort),
				// 可以添加其他字段
			}); err != nil {
			return err
		}
	}

	return nil
}