sensitive/core.go
2022-08-26 10:35:14 +08:00

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package sensitive
import (
"reflect"
"strings"
)
// Desensitization
// @description: 脱敏
// @param r any: 要脱敏的数据(只支持结构体)
// @param skip bool: 是否跳过脱敏
// @return err error: 错误信息
func Desensitization(r any, skip bool) (err error) {
// 处理Data的值如果也是结构体就处理每个字段的标签如果包含sen就把sen改为sen_id
if r == nil || skip {
return
}
// 判断是不是结构体
isPointer := reflect.TypeOf(r).Kind() == reflect.Ptr
dataType := reflect.TypeOf(r).Kind()
if isPointer {
dataType = reflect.TypeOf(r).Elem().Kind()
}
//log.Printf("数据类型: %v是否为指针: %v", dataType, isPointer)
// 处理是数组的情况
if dataType == reflect.Slice || dataType == reflect.Array {
//log.Println("传入类型为数组")
rs := reflect.ValueOf(r)
if isPointer {
rs = rs.Elem()
}
for i := 0; i < rs.Len(); i++ {
id := rs.Index(i)
err = Desensitization(id.Addr().Interface(), skip)
if err != nil {
return
}
}
}
// 如果是指针结构体,处理脱敏
if dataType == reflect.Struct {
val := reflect.ValueOf(r)
if isPointer {
val = val.Elem()
}
for i := 0; i < val.NumField(); i++ {
f := val.Field(i)
tag := val.Type().Field(i).Tag.Get("sen")
//log.Printf("类型: %v -> %v 值: %v 脱敏标签是否存在: %v", f.Type(), f.Kind(), f.Interface(), tag != "")
// 如果是结构体,递归调用
if f.Kind() == reflect.Interface {
//log.Println("开始处理子级")
err = Desensitization(f.Interface(), skip)
}
if tag != "" {
// 脱敏标签存在处理一下取出规则Id和占位符
ruleId := strings.Split(tag, ",")[0]
placeholder := strings.Split(tag, ",")[1]
//log.Printf("脱敏规则Id: %v, 占位符: %v", ruleId, placeholder)
// 处理脱敏
if handle, ok := senRuleMap[ruleId]; ok {
newData := handle(f.Interface().(string), placeholder)
//log.Printf("脱敏后的值: %v", newData)
f.SetString(newData)
}
}
}
}
return
}