69 lines
1.9 KiB
Go
69 lines
1.9 KiB
Go
package memory
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import (
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"time"
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ttlcache "github.com/jellydator/ttlcache/v3"
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"github.com/nmcclain/ldap"
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log "github.com/sirupsen/logrus"
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"goauthentik.io/internal/outpost/ldap/bind"
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"goauthentik.io/internal/outpost/ldap/bind/direct"
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"goauthentik.io/internal/outpost/ldap/server"
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)
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type Credentials struct {
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DN string
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Password string
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}
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type SessionBinder struct {
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direct.DirectBinder
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si server.LDAPServerInstance
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log *log.Entry
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sessions *ttlcache.Cache[Credentials, ldap.LDAPResultCode]
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}
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func NewSessionBinder(si server.LDAPServerInstance, oldBinder bind.Binder) *SessionBinder {
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sb := &SessionBinder{
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si: si,
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log: log.WithField("logger", "authentik.outpost.ldap.binder.session"),
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}
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if oldSb, ok := oldBinder.(*SessionBinder); ok {
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sb.DirectBinder = oldSb.DirectBinder
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sb.sessions = oldSb.sessions
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sb.log.Info("re-initialised session binder")
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} else {
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sb.sessions = ttlcache.New(ttlcache.WithDisableTouchOnHit[Credentials, ldap.LDAPResultCode]())
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sb.DirectBinder = *direct.NewDirectBinder(si)
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go sb.sessions.Start()
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sb.log.Info("initialised session binder")
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}
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return sb
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}
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func (sb *SessionBinder) Bind(username string, req *bind.Request) (ldap.LDAPResultCode, error) {
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item := sb.sessions.Get(Credentials{
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DN: req.BindDN,
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Password: req.BindPW,
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})
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if item != nil {
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sb.log.WithField("bindDN", req.BindDN).Info("authenticated from session")
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return item.Value(), nil
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}
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sb.log.Debug("No session found for user, executing flow")
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result, err := sb.DirectBinder.Bind(username, req)
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// Only cache the result if there's been an error
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if err == nil {
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flags := sb.si.GetFlags(req.BindDN)
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if flags == nil {
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sb.log.Error("user flags not set after bind")
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return result, err
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}
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sb.sessions.Set(Credentials{
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DN: req.BindDN,
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Password: req.BindPW,
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}, result, time.Until(flags.Session.Expires))
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}
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return result, err
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}
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