nextcloud-server/lib/private/AppFramework/Middleware/Security
..
Exceptions
BruteForceMiddleware.php
CORSMiddleware.php
CSPMiddleware.php
FeaturePolicyMiddleware.php
PasswordConfirmationMiddleware.php
RateLimitingMiddleware.php
ReloadExecutionMiddleware.php
SameSiteCookieMiddleware.php
SecurityMiddleware.php