jyMicroservices/jyBXCore/rpc/util/limitSearchText.go

package util

import (
	MC "app.yhyue.com/moapp/jybase/common"
	"app.yhyue.com/moapp/jybase/redis"
	IC "bp.jydev.jianyu360.cn/BaseService/jyMicroservices/jyBXCore/rpc/init"
	"fmt"
	"strings"
)

// 标讯搜索：全文搜索和附件搜索限制
func IsSearchLimit(searchItems []string) bool {
	for _, searchItem := range searchItems {
		if LimitItemsMap[searchItem] {
			return true
		}
	}
	return false
}

func LimitSearchInit() {
	if IC.C.LimitSearchText.Flag {
		LimitSearchClear()
		for i := 0; i < IC.C.LimitSearchText.Count; i++ {
			redis.RPUSH("other", IC.SearchLimitKey, 1)
		}
		if limitItems := IC.C.LimitSearchText.LimitItems; len(limitItems) > 0 {
			LimitItemsMap = map[string]bool{}
			for _, v := range IC.C.LimitSearchText.LimitItems {
				LimitItemsMap[v] = true
			}
		}
	}
}

func LimitSearchClear() {
	redis.Del("other", IC.SearchLimitKey)
}

// 限制正文、附件查询
// return 1 正常
// return -1 抱歉！由于系统繁忙暂时无法进行搜索，请1分钟后再试！
// return -2 抱歉！由于系统繁忙暂时无法进行搜索，请稍后再试！
func IsLimited(limitFlag, userid string, isPayedUser, isNew bool) int64 {
	if !IC.C.LimitSearchText.Flag {
		return 1
	}
	var llen = int(redis.LLEN("other", IC.SearchLimitKey))
	if IC.C.LimitSearchText.TimeOut > 0 {
		//limitFlag, isNew := getFlag(r, w, userid)
		if isNew {
			if llen <= IC.C.LimitSearchText.Count/2 {
				timeLimit, _ := redis.Exists("other", fmt.Sprintf(IC.C.LimitSearchText.LimitKey, limitFlag))
				if timeLimit {
					return -1
				}
			}
		}
		redis.Put("other", fmt.Sprintf(IC.C.LimitSearchText.LimitKey, limitFlag), 1, IC.C.LimitSearchText.TimeOut)
	}

	if IC.C.LimitSearchText.Count == -2 { //不限制
		return 1
	} else if IC.C.LimitSearchText.Count == -1 { //无条件限制
		return -2
	}
	//免费和付费用户 使用并发的80%（默认）通道|| 保留一条通道给付费用户使用
	if userid == "" { //未登录用户2个并发数限制，
		if IC.C.LimitSearchText.Count-IC.C.LimitSearchText.NoLogin <= 0 || llen <= IC.C.LimitSearchText.Count-IC.C.LimitSearchText.NoLogin || llen == 1 {
			return -2
		}
	} else if !isPayedUser {
		if llen <= IC.C.LimitSearchText.Count*IC.C.LimitSearchText.Percentage/100 || llen == 1 {
			return -1
		}
	}
	//
	pollLimit := redis.LPOP("other", IC.SearchLimitKey)
	if MC.IntAll(pollLimit) <= 0 {
		return -2
	}
	return 1
}

func Limit() {
	if !IC.C.LimitSearchText.Flag {
		return
	}
	if int(redis.LLEN("other", IC.SearchLimitKey)) < IC.C.LimitSearchText.Count {
		redis.RPUSH("other", IC.SearchLimitKey, 1)
	}
}

func IsCanLogin(userId string) bool {
	for _, v := range IC.C.LimitSearchText.UserIds {
		if v == userId {
			return true
		}
	}
	return false
}

var (
	UserIdentMap = map[string]int{
		"payer":   1,
		"free":    2,
		"noLogin": 3,
	}
	LimitItemsMap = map[string]bool{
		"detail":   true,
		"filetext": true,
	}
)

/*
限制正文、附件查询
return 1 正常
return -1 抱歉！由于系统繁忙暂时无法进行搜索，请1分钟后再试！
return -2 抱歉！由于系统繁忙暂时无法进行搜索，请稍后再试！
userIdent 未登录用户是；cookie 中存的标识；登录用户是UserId
*/
func CheckLimit(userType int, userIdent string, isNew bool) (state int64, msg string) {
	if !IC.C.LimitSearchText.Flag {
		state = 1
		return
	}
	var limitCount = int(redis.LLEN("other", IC.SearchLimitKey))
	switch IC.C.LimitSearchText.Count {
	case -2: //不限制
		state = 1
		return
	case -1: //无条件限制
		state = -2
		msg = fmt.Sprintf("筛选条件：%s,必限制。", strings.Join(IC.C.LimitSearchText.LimitItems, ","))
		return
	default:
		if limitCount <= 0 {
			state = -1
			msg = fmt.Sprintf("并发通道总数：%d,\n未使用数量：%d", IC.C.LimitSearchText.Count, limitCount)
			return
		}
	}
	//同一用户 -- 请求频次 在IC.C.LimitSearchText.TimeOut内 不允许多次请求
	if IC.C.LimitSearchText.TimeOut > 0 {
		if isNew && limitCount <= IC.C.LimitSearchText.Count/2 {
			timeLimit, _ := redis.Exists("other", fmt.Sprintf(IC.C.LimitSearchText.LimitKey, userIdent))
			if timeLimit {
				state = -1
				msg = fmt.Sprintf("当前用户:%s \n招投标筛选在%d秒内请求频次过多，\n并发通道-\n总数：%d,\n未使用数量：%d", userIdent, IC.C.LimitSearchText.TimeOut, IC.C.LimitSearchText.Count, limitCount)
				return
			}
		}
		redis.Put("other", fmt.Sprintf(IC.C.LimitSearchText.LimitKey, userIdent), 1, IC.C.LimitSearchText.TimeOut)
	}
	//userType 用户标识：1：付费用户；2：免费用户；3：未登录用户；
	switch userType {
	case 1:
		if limitCount > 0 {
			state = 1
		}
	default:
		state = -2
		userStr := MC.If(userType == 2, "免费用户", "未登录用户").(string)
		msg = fmt.Sprintf("%s 招投标重要字段筛选", userStr)
		if limitCount > IC.C.LimitSearchText.ForPayer {
			switch userType {
			case 2:
				quota := limitCount * IC.C.LimitSearchText.Percentage / 100
				if quota > 0 {
					state = 1
					msg = ""
				} else {
					state = -1
					msg = fmt.Sprintf("%s，\n总并发量的百分之%d", msg, IC.C.LimitSearchText.Percentage)
				}
			case 3:
				quota := limitCount * IC.C.LimitSearchText.NoLogin / 100
				if quota > 0 {
					state = 1
					msg = ""
				} else {
					state = -1
					msg = fmt.Sprintf("%s，\n总并发量的百分之%d", msg, IC.C.LimitSearchText.NoLogin)
				}
			}
		}
	}
	//两套负载 同一套并发池
	pollLimit := redis.LPOP("other", IC.SearchLimitKey)
	if MC.IntAll(pollLimit) <= 0 {
		state = -2
	}
	if msg != "" {
		msg = fmt.Sprintf("%s，\n并发通道-\n总数：%d,\n未使用数量：%d", msg, IC.C.LimitSearchText.Count, limitCount)
	}
	return
}