session-lock: don't allow events from rejected locks

fixes #5913

src/managers/SessionLockManager.cpp

@@ -43,6 +43,7 @@ void CSessionLockManager::onNewSessionLock(SP<CSessionLock> pLock) {
 
     if (PROTO::sessionLock->isLocked() && !*PALLOWRELOCK) {
         Debug::log(LOG, "Cannot re-lock, misc:allow_session_lock_restore is disabled");
+        pLock->sendDenied();
         return;
     }
 

src/protocols/SessionLock.cpp

@@ -113,6 +113,11 @@ CSessionLock::CSessionLock(SP<CExtSessionLockV1> resource_) : resource(resource_
     });
 
     resource->setUnlockAndDestroy([this](CExtSessionLockV1* r) {
+        if (inert) {
+            PROTO::sessionLock->destroyResource(this);
+            return;
+        }
+
         events.unlockAndDestroy.emit();
         inert                      = true;
         PROTO::sessionLock->locked = false;
@@ -132,6 +137,11 @@ bool CSessionLock::good() {
     return resource->resource();
 }
 
+void CSessionLock::sendDenied() {
+    inert = true;
+    resource->sendFinished();
+}
+
 CSessionLockProtocol::CSessionLockProtocol(const wl_interface* iface, const int& ver, const std::string& name) : IWaylandProtocol(iface, ver, name) {
     ;
 }
@@ -171,8 +181,8 @@ void CSessionLockProtocol::onLock(CExtSessionLockManagerV1* pMgr, uint32_t id) {
 
     if (m_vLocks.size() > 1) {
         LOGM(ERR, "Tried to lock a locked session");
-        RESOURCE->resource->sendFinished();
         RESOURCE->inert = true;
+        RESOURCE->resource->sendFinished();
         return;
     }
 

src/protocols/SessionLock.hpp

@@ -52,6 +52,7 @@ class CSessionLock {
 
     bool good();
     void sendLocked();
+    void sendDenied();
 
     struct {
         CSignal newLockSurface; // SP<CSessionLockSurface>