添加版本号比较

pkg/e/code.go

@@ -16,6 +16,7 @@ const (
 	MV_ERROR			= 5009
 	TRY_LATER           = 5010
 	DF_ERROR            = 5011
+	VERSION_UPDATE_ERROR       = 5012
 	ERROR_EXIST_TAG       = 10001
 	ERROR_EXIST_TAG_FAIL  = 10002
 	ERROR_NOT_EXIST_TAG   = 10003

pkg/e/msg.go

@@ -11,6 +11,7 @@ var MsgFlags = map[int]string{
 	MV_ERROR:						  "移动文件出错",
 	TRY_LATER:						  "其他任务进行中，稍后再试",
 	DF_ERROR:						  "df命令执行异常",
+	VERSION_UPDATE_ERROR:			  "版本更新异常，请检查当前版本和更新版本",
 	ERROR_EXIST_TAG:                 "已存在该标签名称",
 	ERROR_EXIST_TAG_FAIL:            "获取已存在标签失败",
 	ERROR_NOT_EXIST_TAG:             "该标签不存在",

pkg/util/util.go

@@ -54,6 +54,7 @@ func GetExternal() (string,error) {
 	return string(content),nil
 }
 
+//两个以上空格替换成一个空格
 func DeleteExtraSpace(s string) string {
 	//删除字符串中的多余空格，有多个空格时，仅保留一个空格
 	s1 := strings.Replace(s, "      ", " ", -1)      //替换tab为空格
@@ -68,3 +69,33 @@ func DeleteExtraSpace(s string) string {
 	}
 	return string(s2)
 }
+
+//字符串版本号比较
+func VersionCompare(version string) string {
+	// ISO/IEC 14651:2011
+	const maxByte = 1<<8 - 1
+	vo := make([]byte, 0, len(version)+8)
+	j := -1
+	for i := 0; i < len(version); i++ {
+		b := version[i]
+		if '0' > b || b > '9' {
+			vo = append(vo, b)
+			j = -1
+			continue
+		}
+		if j == -1 {
+			vo = append(vo, 0x00)
+			j = len(vo) - 1
+		}
+		if vo[j] == 1 && vo[j+1] == '0' {
+			vo[j+1] = b
+			continue
+		}
+		if vo[j]+1 > maxByte {
+			panic("VersionCompare: invalid version")
+		}
+		vo = append(vo, b)
+		vo[j]++
+	}
+	return string(vo)
+}

routers/api/v1/pai.go

@@ -68,6 +68,13 @@ func UpdatePai(c *gin.Context) {
 		app.DPercent.Flag = false
 		return
 	}
+	version := util.VersionCompare(app.GetVersion())
+	updateversion := util.VersionCompare(req.Version)
+	if updateversion <= version {
+		appG.Response(http.StatusOK, e.VERSION_UPDATE_ERROR, nil)
+		app.DPercent.Flag = false
+		return
+	}
 	name := setting.Chain33Pai.Name+"_"+req.Version+".tar.gz"
 	url := setting.Chain33Pai.DownloadUrl+ name
 	//oss下载更新包