mirror of
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89 lines
2.5 KiB
Go
89 lines
2.5 KiB
Go
package controller
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import (
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"crypto/md5"
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"encoding/hex"
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"glc/conf"
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"glc/gweb"
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"time"
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"github.com/gotoeasy/glang/cmn"
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)
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var sessionid string
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var catch *cmn.Cache
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func init() {
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if conf.IsEnableLogin() {
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catch = cmn.NewCache(time.Minute * 15)
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sessionid = createSessionid()
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go func() {
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ticker := time.NewTicker(time.Hour) // 一小时更新一次
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for {
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<-ticker.C
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sessionid = createSessionid()
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}
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}()
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}
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}
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func LoginController(req *gweb.HttpRequest) *gweb.HttpResult {
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username := req.GetFormParameter("username")
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password := req.GetFormParameter("password")
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key := getClientHash(req)
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val, find := catch.Get(key)
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cnt := 0
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if find {
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cnt = val.(int)
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if cnt >= 5 {
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catch.Set(key, cnt) // 还试，重新计算限制时间，再等15分钟吧
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return gweb.Error500("连续多次失败，当前已被限制登录")
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}
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}
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if username != conf.GetUsername() || password != conf.GetPassword() {
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cnt++
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catch.Set(key, cnt)
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return gweb.Error500("用户名或密码错误")
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}
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catch.Delete(key)
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return gweb.Result(sessionid)
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}
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func IsEnableLoginController(req *gweb.HttpRequest) *gweb.HttpResult {
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return gweb.Result(conf.IsEnableLogin())
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}
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func createSessionid() string {
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ymd := cmn.Today()
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by1 := md5.Sum(cmn.StringToBytes(conf.GetUsername() + ymd))
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by2 := md5.Sum(cmn.StringToBytes(ymd + conf.GetPassword()))
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by3 := md5.Sum(cmn.StringToBytes(ymd + "添油" + conf.GetUsername() + "加醋" + conf.GetPassword() + conf.GetTokenSalt())) // 增加配置的令牌盐
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str1 := hex.EncodeToString(by1[:])
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str2 := hex.EncodeToString(by2[:])
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str3 := hex.EncodeToString(by3[:])
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return cmn.Right(str1, 15) + cmn.Left(str2, 15) + cmn.Left(str3, 30)
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}
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func GetSessionid() string {
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return sessionid
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}
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func getClientHash(req *gweb.HttpRequest) string {
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var ary []string
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ary = append(ary, req.GetHeader("Sec-Fetch-Site"))
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ary = append(ary, req.GetHeader("Sec-Fetch-Dest"))
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ary = append(ary, req.GetHeader("Sec-Ch-Ua-Mobile"))
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ary = append(ary, req.GetHeader("Accept-Language"))
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ary = append(ary, req.GetHeader("Accept-Encoding"))
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ary = append(ary, req.GetHeader("X-Forwarded-For"))
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ary = append(ary, req.GetHeader("Forwarded"))
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ary = append(ary, req.GetHeader("Sec-Ch-Ua-Platform"))
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ary = append(ary, req.GetHeader("User-Agent"))
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ary = append(ary, req.GetHeader("Sec-Fetch-Mode"))
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ary = append(ary, req.GetHeader("Sec-Ch-Ua"))
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ary = append(ary, req.GetHeader("Referer"))
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ary = append(ary, req.GinCtx.ClientIP())
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return cmn.HashString(cmn.Join(ary, ","))
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}
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