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70 lines
1.3 KiB
70 lines
1.3 KiB
package hashid
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import (
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"errors"
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"github.com/cloudreve/Cloudreve/v3/pkg/conf"
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"github.com/speps/go-hashids"
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)
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// ID类型
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const (
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ShareID = iota // 分享
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UserID // 用户
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FileID // 文件ID
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FolderID // 目录ID
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TagID // 标签ID
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PolicyID // 存储策略ID
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)
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var (
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// ErrTypeNotMatch ID类型不匹配
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ErrTypeNotMatch = errors.New("ID类型不匹配")
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)
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// HashEncode 对给定数据计算HashID
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func HashEncode(v []int) (string, error) {
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hd := hashids.NewData()
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hd.Salt = conf.SystemConfig.HashIDSalt
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h, err := hashids.NewWithData(hd)
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if err != nil {
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return "", err
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}
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id, err := h.Encode(v)
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if err != nil {
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return "", err
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}
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return id, nil
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}
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// HashDecode 对给定数据计算原始数据
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func HashDecode(raw string) ([]int, error) {
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hd := hashids.NewData()
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hd.Salt = conf.SystemConfig.HashIDSalt
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h, err := hashids.NewWithData(hd)
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if err != nil {
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return []int{}, err
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}
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return h.DecodeWithError(raw)
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}
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// HashID 计算数据库内主键对应的HashID
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func HashID(id uint, t int) string {
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v, _ := HashEncode([]int{int(id), t})
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return v
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}
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// DecodeHashID 计算HashID对应的数据库ID
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func DecodeHashID(id string, t int) (uint, error) {
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v, _ := HashDecode(id)
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if len(v) != 2 || v[1] != t {
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return 0, ErrTypeNotMatch
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}
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return uint(v[0]), nil
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}
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