fix: point d'entrée navigable de la déconnexion globale GET /sso/logout (BUG-122, fusion #141) — 2.86.0

tests/test_draco_session.py

@@ -189,6 +189,44 @@ def test_sso_authorize_liste_blanche(client):
     assert r.headers["location"] == "/"                   # refusé, pas de relais
 
 
+# ── Déconnexion globale navigable (BUG-122, fusion #141) ────────────────
+
+def test_sso_logout_revoque_et_redirige(admin_client):
+    token = _token_depuis_login(admin_client)
+    assert draco_session.verify_token(token)
+    r = admin_client.get(
+        "/sso/logout",
+        params={"return_to": "https://tiktak.dracodev.net/"},
+        headers={"Cookie": f"draco_session={token}"},
+        follow_redirects=False)
+    assert r.status_code == 302
+    assert r.headers["location"] == "https://tiktak.dracodev.net/"
+    assert draco_session.verify_token(token) is None      # jti révoqué
+    cookie = _draco_cookie(r)                             # cookie effacé
+    assert cookie is not None and "Max-Age=0" in cookie
+
+
+def test_sso_logout_liste_blanche(admin_client):
+    r = admin_client.get("/sso/logout",
+                         params={"return_to": "https://evil.com/phish"},
+                         follow_redirects=False)
+    assert r.status_code == 302
+    assert r.headers["location"] == "/"                   # refusé, pas de relais
+    r = admin_client.get("/sso/logout", follow_redirects=False)
+    assert r.status_code == 302
+    assert r.headers["location"] == "/"                   # sans return_to
+
+
+def test_sso_logout_sans_session_idempotent(client):
+    # Aucun cookie : la route reste une redirection propre (les autres
+    # applications y naviguent même si la session a déjà expiré).
+    r = client.get("/sso/logout",
+                   params={"return_to": "https://hub.dracodev.net/"},
+                   follow_redirects=False)
+    assert r.status_code == 302
+    assert r.headers["location"] == "https://hub.dracodev.net/"
+
+
 # ── Validation locale (ACC-3.2, #9) ──────────────────────────────────────
 
 def test_me_avec_cookie_draco_seul(admin_client):