go_gameshield/internal/service/wafformatter.go

package service

import (
	"context"
	"fmt"
	v1 "github.com/go-nunu/nunu-layout-advanced/api/v1"
	"github.com/go-nunu/nunu-layout-advanced/internal/repository"
	"github.com/spf13/cast"

	"strconv"
)

type WafFormatterService interface {
	require(ctx context.Context, req v1.GlobalRequire, category string) (v1.GlobalRequire, error)
	sendFormData(ctx context.Context,addTokenUrl string,addSendUrl string,formData map[string]interface{}) (int, error)
}
func NewWafFormatterService(
    service *Service,
	globalRep repository.GlobalLimitRepository,
	hostRep repository.HostRepository,
	required RequiredService,
	parser ParserService,
) WafFormatterService {
	return &wafFormatterService{
		Service:        service,
		globalRep: globalRep,
		hostRep: hostRep,
		required: required,
		parser: parser,
	}
}

type wafFormatterService struct {
	*Service
	globalRep repository.GlobalLimitRepository
	hostRep repository.HostRepository
	required RequiredService
	parser ParserService
}

func (s *wafFormatterService) require(ctx context.Context,req v1.GlobalRequire,category string) (v1.GlobalRequire, error) {
	RuleIds, err := s.globalRep.GetGlobalLimitByHostId(ctx, int64(req.HostId))
	if err != nil {
		return v1.GlobalRequire{}, err
	}
	req.WafGatewayGroupId = RuleIds.GatewayGroupId
	switch category {
	case "tcp":
		req.LimitRuleId = RuleIds.TcpLimitRuleId
	case "udp":
		req.LimitRuleId = RuleIds.UdpLimitRuleId
	case "web":
		req.LimitRuleId = RuleIds.WebLimitRuleId
	}
	domain, err := s.hostRep.GetDomainById(ctx, req.HostId)
	if err != nil {
		return v1.GlobalRequire{}, err
	}
	req.Tag = strconv.Itoa(req.Uid) + "_" + strconv.Itoa(req.HostId) + "_" + domain + "_" + req.Comment
	return req, nil
}

func (s *wafFormatterService) sendFormData(ctx context.Context,addTokenUrl string,addSendUrl string,formData map[string]interface{}) (int, error) {
	respBody, err := s.required.SendForm(ctx, addTokenUrl, addSendUrl, 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)
	}
	ruleIdStr, err := s.parser.GetRuleIdByColumnName(ctx, respBody,formData["tag"].(string))
	if err != nil {
		return 0, err
	}
	ruleId, err := cast.ToIntE(ruleIdStr)
	if err != nil {
		return 0,err
	}
	return ruleId, nil
}