refactor: log regex check api

http/router.go

@@ -146,7 +146,7 @@ func configRoutes(r *gin.Engine) {
 		pages.POST("/collect-rules", login(), collectRuleAdd)
 		pages.DELETE("/collect-rules", login(), collectRuleDel)
 		pages.PUT("/collect-rule/:id", login(), collectRulePut)
-		pages.POST("/log/check", regExpCheck) // check collect rule
+		pages.POST("/log/check", regExpCheck)
 
 		pages.GET("/metric-descriptions", metricDescriptionGets)
 		pages.POST("/metric-descriptions", login(), metricDescriptionAdd)

http/router_collect_rule.go

 package http
 
 import (
-	"fmt"
 	"regexp"
 	"strings"
 	"time"
 
 	"github.com/gin-gonic/gin"
-	"github.com/toolkits/pkg/logger"
 
 	"github.com/didi/nightingale/v5/cache"
 	"github.com/didi/nightingale/v5/models"
+	"github.com/didi/nightingale/v5/pkg/i18n"
 )
 
 type collectRuleForm struct {
@@ -136,8 +135,6 @@ type RegExpCheck struct {
 	Data    []map[string]string `json:"tags"`
 }
 
-var RegExpExcludePatition string = "```EXCLUDE```"
-
 func regExpCheck(c *gin.Context) {
 	param := make(map[string]string)
 	dangerous(c.ShouldBind(&param))
@@ -147,75 +144,45 @@ func regExpCheck(c *gin.Context) {
 		Data:    make([]map[string]string, 0),
 	}
 
-	// 处理时间格式
-	if t, ok := param["time"]; !ok || t == "" {
-		tmp := map[string]string{"time": "time参数不存在或为空"}
+	calcMethod := param["func"]
+	if calcMethod == "" {
+		tmp := map[string]string{"func": "is empty"}
 		ret.Data = append(ret.Data, tmp)
-	} else {
-		timePat, _ := GetPatAndTimeFormat(param["time"])
-		if timePat == "" {
-			tmp := map[string]string{"time": genErrMsg("时间格式")}
-			ret.Data = append(ret.Data, tmp)
-		} else {
-			suc, tRes, _ := checkRegPat(timePat, param["log"], true)
-			if !suc {
-				ret.Success = false
-				tRes = genErrMsg("时间格式")
-			}
-			tmp := map[string]string{"time": tRes}
-			ret.Data = append(ret.Data, tmp)
-		}
+		renderData(c, ret, nil)
+		return
 	}
 
-	// 计算方式
-	calc_method := param["calc_method"]
-
-	// 处理主正则(with exclude)
+	// 处理主正则
 	if re, ok := param["re"]; !ok || re == "" {
-		tmp := map[string]string{"re": "re参数不存在或为空"}
-		ret.Data = append(ret.Data, tmp)
-	} else {
-		// 处理exclude的情况
-		exclude := ""
-		if strings.Contains(re, RegExpExcludePatition) {
-			l := strings.Split(re, RegExpExcludePatition)
-			if len(l) >= 2 {
-				param["re"] = l[0]
-				exclude = l[1]
-			}
-		}
-
-		// 匹配主正则
-		suc, reRes, isSub := checkRegPat(param["re"], param["log"], false)
-		if !suc {
-			ret.Success = false
-			reRes = genErrMsg("主正则")
-		}
-		if calc_method != "" && calc_method != "cnt" && !isSub {
-			ret.Success = false
-			reRes = genSubErrMsg("主正则")
-		}
-		tmp := map[string]string{"主正则": reRes}
+		tmp := map[string]string{"re": "regex does not exist or is empty"}
 		ret.Data = append(ret.Data, tmp)
+		renderData(c, ret, nil)
+		return
+	}
 
-		// 匹配exclude, 这个不影响失败
-		if exclude != "" {
-			suc, exRes, _ := checkRegPat(exclude, param["log"], false)
-			if !suc {
-				//ret.Success = false
-				exRes = "未匹配到排除串,请检查是否符合预期"
-			}
-			tmp := map[string]string{"排除串": exRes}
-			ret.Data = append(ret.Data, tmp)
-		}
+	// 匹配主正则
+	suc, reRes, isSub := checkRegex(param["re"], param["log"])
+	if !suc {
+		ret.Success = false
+		reRes = genErrMsg("re")
+		ret.Data = append(ret.Data, map[string]string{"re": reRes})
+		renderData(c, ret, nil)
+		return
+	}
+	if calcMethod == "histogram" && !isSub {
+		ret.Success = false
+		reRes = genSubErrMsg("re")
+		ret.Data = append(ret.Data, map[string]string{"re": reRes})
+		renderData(c, ret, nil)
+		return
 	}
 
+	ret.Data = append(ret.Data, map[string]string{"re": reRes})
 	// 处理tags
 	var nonTagKey = map[string]bool{
-		"re":          true,
-		"log":         true,
-		"time":        true,
-		"calc_method": true,
+		"re":   true,
+		"log":  true,
+		"func": true,
 	}
 
 	for tagk, pat := range param {
@@ -223,7 +190,7 @@ func regExpCheck(c *gin.Context) {
 		if _, ok := nonTagKey[tagk]; ok {
 			continue
 		}
-		suc, tagRes, isSub := checkRegPat(pat, param["log"], false)
+		suc, tagRes, isSub := checkRegex(pat, param["log"])
 		if !suc {
 			// 正则错误
 			ret.Success = false
@@ -245,49 +212,8 @@ func regExpCheck(c *gin.Context) {
 	renderData(c, ret, nil)
 }
 
-//根据配置的时间格式，获取对应的正则匹配pattern和time包用的时间格式
-func GetPatAndTimeFormat(tf string) (string, string) {
-	var pat, timeFormat string
-	switch tf {
-	case "dd/mmm/yyyy:HH:MM:SS":
-		pat = `([012][0-9]|3[01])/[JFMASOND][a-z]{2}/(2[0-9]{3}):([01][0-9]|2[0-4])(:[012345][0-9]){2}`
-		timeFormat = "02/Jan/2006:15:04:05"
-	case "dd/mmm/yyyy HH:MM:SS":
-		pat = `([012][0-9]|3[01])/[JFMASOND][a-z]{2}/(2[0-9]{3})\s([01][0-9]|2[0-4])(:[012345][0-9]){2}`
-		timeFormat = "02/Jan/2006 15:04:05"
-	case "yyyy-mm-ddTHH:MM:SS":
-		pat = `(2[0-9]{3})-(0[1-9]|1[012])-([012][0-9]|3[01])T([01][0-9]|2[0-4])(:[012345][0-9]){2}`
-		timeFormat = "2006-01-02T15:04:05"
-	case "dd-mmm-yyyy HH:MM:SS":
-		pat = `([012][0-9]|3[01])-[JFMASOND][a-z]{2}-(2[0-9]{3})\s([01][0-9]|2[0-4])(:[012345][0-9]){2}`
-		timeFormat = "02-Jan-2006 15:04:05"
-	case "yyyy-mm-dd HH:MM:SS":
-		pat = `(2[0-9]{3})-(0[1-9]|1[012])-([012][0-9]|3[01])\s([01][0-9]|2[0-4])(:[012345][0-9]){2}`
-		timeFormat = "2006-01-02 15:04:05"
-	case "yyyy/mm/dd HH:MM:SS":
-		pat = `(2[0-9]{3})/(0[1-9]|1[012])/([012][0-9]|3[01])\s([01][0-9]|2[0-4])(:[012345][0-9]){2}`
-		timeFormat = "2006/01/02 15:04:05"
-	case "yyyymmdd HH:MM:SS":
-		pat = `(2[0-9]{3})(0[1-9]|1[012])([012][0-9]|3[01])\s([01][0-9]|2[0-4])(:[012345][0-9]){2}`
-		timeFormat = "20060102 15:04:05"
-	case "mmm dd HH:MM:SS":
-		pat = `[JFMASOND][a-z]{2}\s+([1-9]|[1-2][0-9]|3[01])\s([01][0-9]|2[0-4])(:[012345][0-9]){2}`
-		timeFormat = "Jan 2 15:04:05"
-	case "mmdd HH:MM:SS":
-		pat = `(0[1-9]|1[012])([012][0-9]|3[01])\s([01][0-9]|2[0-4])(:[012345][0-9]){2}`
-		timeFormat = "0102 15:04:05"
-	case "dd mmm yyyy HH:MM:SS":
-		pat = `([012][0-9]|3[01])\s+[JFMASOND][a-z]{2}\s+(2[0-9]{3})\s([01][0-9]|2[0-4])(:[012345][0-9]){2}`
-		timeFormat = "02 Jan 2006 15:04:05"
-	default:
-		logger.Errorf("match time pac failed : [timeFormat:%s]", tf)
-		return "", ""
-	}
-	return pat, timeFormat
-}
-
 // 出错信息直接放在body里
-func checkRegPat(pat string, log string, origin bool) (succ bool, result string, isSub bool) {
+func checkRegex(pat string, log string) (succ bool, result string, isSub bool) {
 	if pat == "" {
 		return false, "", false
 	}
@@ -307,15 +233,7 @@ func checkRegPat(pat string, log string, origin bool) (succ bool, result string,
 		return true, res[0], false
 	// 查到了，默认取第一个串
 	default:
-		var msg string
-		if origin {
-			msg = res[0]
-			isSub = false
-		} else {
-			msg = res[1]
-			isSub = true
-		}
-		return true, msg, isSub
+		return true, res[1], true
 	}
 }
 
@@ -326,15 +244,15 @@ func includeIllegalChar(s string) bool {
 
 // 生成返回错误信息
 func genErrMsg(sign string) string {
-	return fmt.Sprintf("正则匹配失败，请认真检查您[%s]的配置", sign)
+	return i18n.Sprintf("regular match failed, please check your configuration:[%s]", sign)
 }
 
 // 生成子串匹配错误信息
 func genSubErrMsg(sign string) string {
-	return fmt.Sprintf("正则匹配成功。但根据配置，并没有获取到()内的子串，请认真检查您[%s]的配置", sign)
+	return i18n.Sprintf("regular match was successful. according to the configuration, it does not get the substring inside(), please check your configuration:[%s]", sign)
 }
 
 // 生成子串匹配错误信息
 func genIllegalCharErrMsg() string {
-	return `正则匹配成功。但是tag的key或者value包含非法字符:[:,/=\r\n\t], 请重新调整`
+	return i18n.Sprintf(`key or value of tag contains illegal characters:[:,/=\r\n\t]`)
 }