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package CheckHandler
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import (
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"github.com/gin-gonic/gin"
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"strconv"
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"strings"
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)
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//在注释标签中声明的标识字符串:X-FloatLimit
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var floatLimit = "x-floatlimit"
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//形成一个map,用于O(1)速度获取到一个接口是不是需要进行判断拦截,注意,一个接口可以存在post+get两种形式,所以map里面是一个数组,需要遍历
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type floatLimitStruct struct {
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parameterName string
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httpType string
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must bool
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}
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//长度限制的map,以string为key(key的命名是接口名+"_get" 或者 接口名+"_post"),里面是floatLimitStruct形式的数组
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var floatLimitMap = make(map[string][]floatLimitStruct)
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/**
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功能:功能函数,添当前的检查字典里
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*/
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func floatAddToMap(d map[string]interface{},t map[string]interface{},k string,httpType string){
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var floatLimitArray []floatLimitStruct
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d = t[httpType].(map[string]interface{})
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if d != nil && d[floatLimit] != nil {
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for _, value := range d[floatLimit].([]interface{}) {
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var t floatLimitStruct
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t.parameterName = value.(string)
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t.httpType = httpType
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//此参数是否为必填写项
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for _, v2 := range d["parameters"].([]interface{}) {
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c2 := v2.(map[string]interface{})
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for k2, v2 := range c2 {
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if k2 == "required" {
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t.must = v2.(bool) //标识是否是必须项
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}
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}
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}
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floatLimitArray = append(floatLimitArray, t)
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}
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floatLimitMap[k+"_"+httpType] = floatLimitArray
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}
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}
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/**
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功能:初始化浮点数限制字典
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*/
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func floatLimitInit(inter interface{}) map[string][]floatLimitStruct {
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//参数检查器
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m := inter.(map[string]interface{})
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n := m["paths"].(map[string]interface{})
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for k, v := range n {
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t := v.(map[string]interface{})
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//参数长度检查器
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var d map[string]interface{}
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if t["get"] != nil {
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floatAddToMap(d,t,k,"get")
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}
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if t["post"] != nil {
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floatAddToMap(d,t,k,"post")
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}
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}
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return floatLimitMap
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}
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/**
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功能:检查字符串是否为浮点数
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作者:黄海
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时间:2020-03-17
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*/
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func floatLimitIsLegal(c *gin.Context, interName string) (bool, ResultStruct) {
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var resultStruct ResultStruct
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//接口传入的请求方式:get?post?
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codeHttpType := strings.ToLower(c.Request.Method)
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//1、如果此接口地址需要进行参数长度检查
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if floatLimitMap[interName+"_"+codeHttpType] != nil {
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arr := floatLimitMap[interName+"_"+codeHttpType]
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resultStruct.InterfaceName = interName
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//遍历arr
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for i := 0; i < len(arr); i++ {
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parameterName := arr[i].parameterName
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httpType := arr[i].httpType
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var p string
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if httpType == "get" {
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p = c.Query(parameterName)
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} else {
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p = c.PostForm(parameterName)
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}
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resultStruct.Parameter = parameterName
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//为空,不需要检查,通过
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if p == "" && !arr[i].must {
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return true, resultStruct
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}
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//为空,需要检查,禁止
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if p == "" && arr[i].must{
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resultStruct.Message = "参数没有找到!"
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return false, resultStruct
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}
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if _, err := strconv.ParseFloat(p, 64); err != nil {
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resultStruct.HttpType = httpType
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resultStruct.Message = "不是浮点数!"
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return false, resultStruct
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}
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}
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}
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return true, resultStruct
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}
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