outposts: Refactor session end signal and add LDAP support (#14539)

* outpost: promote session end signal to non-provider specific

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* implement server-side logout in ldap

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix previous import

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* use better retry logic

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* log

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* make more generic if we switch from ws to something else

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* make it possible to e2e test WS

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix ldap session id

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* ok I actually need to go to bed this took me an hour to fix

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* format; add ldap test

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix leftover state

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* remove thread

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* use ws base for radius

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* separate test utils

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* rename

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix missing super calls

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* websocket tests with browser 🎉

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add proxy test for sign out

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix install_id issue with channels tests

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix proxy basic auth test

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* big code dedupe

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* allow passing go build args

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* improve waiting for outpost

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* rewrite ldap tests

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* ok actually fix the tests

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* undo a couple things that need more time to cook

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* remove unused lockfile-lint dependency since we use a shell script and SFE does not have a lockfile

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix session id for ldap

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix missing createTimestamp and modifyTimestamp ldap attributes

closes #10474

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

---------

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

internal/outpost/ldap/flags/flags.go

@@ -1,16 +1,30 @@
 package flags
 
 import (
+	"crypto/sha256"
+	"encoding/hex"
 	"net/http"
 
+	"github.com/golang-jwt/jwt/v5"
 	"goauthentik.io/api/v3"
+	"goauthentik.io/internal/outpost/flow"
 )
 
 const InvalidUserPK = -1
 
 type UserFlags struct {
-	UserInfo  *api.User
-	UserPk    int32
-	CanSearch bool
-	Session   *http.Cookie
+	UserInfo   *api.User
+	UserPk     int32
+	CanSearch  bool
+	Session    *http.Cookie
+	SessionJWT *jwt.Token
+}
+
+func (uf UserFlags) SessionID() string {
+	if uf.SessionJWT == nil {
+		return ""
+	}
+	h := sha256.New()
+	h.Write([]byte(uf.SessionJWT.Claims.(*flow.SessionCookieClaims).SessionID))
+	return hex.EncodeToString(h.Sum(nil))
 }