mirror of
https://gitee.com/dromara/mayfly-go
synced 2025-11-04 08:20:25 +08:00
114 lines
2.8 KiB
Go
114 lines
2.8 KiB
Go
package ctx
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import (
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"fmt"
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"mayfly-go/pkg/biz"
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"mayfly-go/pkg/cache"
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"mayfly-go/pkg/config"
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"time"
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)
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type Permission struct {
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NeedToken bool // 是否需要token
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Code string // 权限code
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}
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func NewPermission(code string) *Permission {
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return &Permission{NeedToken: true, Code: code}
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}
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func (p *Permission) WithNeedToken(needToken bool) *Permission {
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p.NeedToken = needToken
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return p
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}
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type PermissionCodeRegistry interface {
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// 保存用户权限code
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SaveCodes(userId uint64, codes []string)
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// 判断用户是否拥有该code的权限
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HasCode(userId uint64, code string) bool
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Remove(userId uint64)
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}
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type DefaultPermissionCodeRegistry struct {
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cache *cache.TimedCache
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}
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func (r *DefaultPermissionCodeRegistry) SaveCodes(userId uint64, codes []string) {
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if r.cache == nil {
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r.cache = cache.NewTimedCache(time.Minute*time.Duration(config.Conf.Jwt.ExpireTime), 5*time.Second)
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}
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r.cache.Put(fmt.Sprintf("%v", userId), codes)
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}
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func (r *DefaultPermissionCodeRegistry) HasCode(userId uint64, code string) bool {
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if r.cache == nil {
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return false
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}
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codes, found := r.cache.Get(fmt.Sprintf("%v", userId))
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if !found {
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return false
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}
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for _, v := range codes.([]string) {
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if v == code {
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return true
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}
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}
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return false
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}
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func (r *DefaultPermissionCodeRegistry) Remove(userId uint64) {
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r.cache.Delete(fmt.Sprintf("%v", userId))
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}
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// 保存用户权限code
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func SavePermissionCodes(userId uint64, codes []string) {
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permissionCodeRegistry.SaveCodes(userId, codes)
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}
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// 删除用户权限code
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func DeletePermissionCodes(userId uint64) {
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permissionCodeRegistry.Remove(userId)
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}
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// 设置权限code注册器
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func SetPermissionCodeRegistery(pcr PermissionCodeRegistry) {
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permissionCodeRegistry = pcr
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}
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var (
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permissionCodeRegistry PermissionCodeRegistry = &DefaultPermissionCodeRegistry{}
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// permissionError = biz.NewBizErrCode(biz.TokenErrorCode, biz.TokenErrorMsg)
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)
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func PermissionHandler(rc *ReqCtx) error {
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permission := rc.RequiredPermission
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// 如果需要的权限信息不为空，并且不需要token，则不返回错误，继续后续逻辑
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if permission != nil && !permission.NeedToken {
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return nil
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}
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tokenStr := rc.GinCtx.Request.Header.Get("Authorization")
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// header不存在则从查询参数token中获取
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if tokenStr == "" {
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tokenStr = rc.GinCtx.Query("token")
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}
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if tokenStr == "" {
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return biz.PermissionErr
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}
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loginAccount, err := ParseToken(tokenStr)
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if err != nil || loginAccount == nil {
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return biz.PermissionErr
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}
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// 权限不为nil，并且permission code不为空，则校验是否有权限code
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if permission != nil && permission.Code != "" {
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if !permissionCodeRegistry.HasCode(loginAccount.Id, permission.Code) {
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return biz.PermissionErr
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}
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}
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rc.LoginAccount = loginAccount
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return nil
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}
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