core: grace unlock improvements and auth fixes for grace/SIGUSR1 unlocks (#424)

* core: check m_bTerminate for grace unlocks

* core: remove reference to the lock object on finished

* core: add isUnlocked

true if m_bFadeStarted or m_bTerminate

* auth: return early on grace or SIGUSR1 unlocks

src/core/Auth.cpp

@@ -38,7 +38,7 @@ int conv(int num_msg, const struct pam_message** msg, struct pam_response** resp
                 }
 
                 // Needed for unlocks via SIGUSR1
-                if (g_pHyprlock->m_bTerminate)
+                if (g_pHyprlock->isUnlocked())
                     return PAM_CONV_ERR;
 
                 pamReply[i].resp = strdup(CONVERSATIONSTATE->input.c_str());
@@ -70,9 +70,21 @@ static void passwordCheckTimerCallback(std::shared_ptr<CTimer> self, void* data)
 void CAuth::start() {
     std::thread([this]() {
         resetConversation();
+
+        // Initial input
         m_sConversationState.prompt = "Password: ";
         waitForInput();
-        auth();
+
+        // For grace or SIGUSR1 unlocks
+        if (g_pHyprlock->isUnlocked())
+            return;
+
+        const auto AUTHENTICATED = auth();
+        m_bAuthenticated         = AUTHENTICATED;
+
+        // For SIGUSR1 unlocks
+        if (g_pHyprlock->isUnlocked())
+            return;
 
         g_pHyprlock->addTimer(std::chrono::milliseconds(1), passwordCheckTimerCallback, nullptr);
     }).detach();
@@ -86,7 +98,6 @@ bool CAuth::auth() {
     int            ret = pam_start(m_sPamModule.c_str(), uidPassword->pw_name, &localConv, &handle);
 
     if (ret != PAM_SUCCESS) {
-        m_sConversationState.success  = false;
         m_sConversationState.failText = "pam_start failed";
         Debug::log(ERR, "auth: pam_start failed for {}", m_sPamModule);
         return false;
@@ -99,21 +110,19 @@ bool CAuth::auth() {
     m_sConversationState.waitingForPamAuth = false;
 
     if (ret != PAM_SUCCESS) {
-        m_sConversationState.success  = false;
         m_sConversationState.failText = ret == PAM_AUTH_ERR ? "Authentication failed" : "pam_authenticate failed";
         Debug::log(ERR, "auth: {} for {}", m_sConversationState.failText, m_sPamModule);
         return false;
     }
 
-    m_sConversationState.success  = true;
     m_sConversationState.failText = "Successfully authenticated";
     Debug::log(LOG, "auth: authenticated for {}", m_sPamModule);
 
     return true;
 }
 
-bool CAuth::didAuthSucceed() {
-    return m_sConversationState.success;
+bool CAuth::isAuthenticated() {
+    return m_bAuthenticated;
 }
 
 // clearing the input must be done from the main thread
@@ -164,5 +173,4 @@ void CAuth::resetConversation() {
     m_sConversationState.input             = "";
     m_sConversationState.waitingForPamAuth = false;
     m_sConversationState.inputRequested    = false;
-    m_sConversationState.success           = false;
 }

src/core/Auth.hpp

@@ -18,15 +18,13 @@ class CAuth {
 
         bool                    waitingForPamAuth = false;
         bool                    inputRequested    = false;
-
-        bool                    success = false;
     };
 
     CAuth();
 
     void                       start();
     bool                       auth();
-    bool                       didAuthSucceed();
+    bool                       isAuthenticated();
 
     void                       waitForInput();
     void                       submitInput(std::string input);
@@ -44,7 +42,8 @@ class CAuth {
   private:
     SPamConversationState m_sConversationState;
 
-    bool                  m_bBlockInput = true;
+    bool                  m_bBlockInput    = true;
+    bool                  m_bAuthenticated = false;
 
     std::string           m_sPamModule;
 

src/core/hyprlock.cpp

@@ -585,6 +585,10 @@ void CHyprlock::unlock() {
     renderAllOutputs();
 }
 
+bool CHyprlock::isUnlocked() {
+    return m_bFadeStarted || m_bTerminate;
+}
+
 // wl_seat
 
 static void handlePointerEnter(void* data, struct wl_pointer* wl_pointer, uint32_t serial, struct wl_surface* surface, wl_fixed_t surface_x, wl_fixed_t surface_y) {
@@ -610,9 +614,10 @@ static void handlePointerAxis(void* data, wl_pointer* wl_pointer, uint32_t time,
 }
 
 static void handlePointerMotion(void* data, struct wl_pointer* wl_pointer, uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y) {
-    if (g_pHyprlock->m_vLastEnterCoords.distance({wl_fixed_to_double(surface_x), wl_fixed_to_double(surface_y)}) > 5 &&
-        std::chrono::system_clock::now() < g_pHyprlock->m_tGraceEnds && !g_pHyprlock->m_bFadeStarted) {
+    if (std::chrono::system_clock::now() > g_pHyprlock->m_tGraceEnds)
+        return;
 
+    if (!g_pHyprlock->isUnlocked() && g_pHyprlock->m_vLastEnterCoords.distance({wl_fixed_to_double(surface_x), wl_fixed_to_double(surface_y)}) > 5) {
         Debug::log(LOG, "In grace and cursor moved more than 5px, unlocking!");
         g_pHyprlock->unlock();
     }
@@ -767,13 +772,13 @@ static const ext_session_lock_v1_listener sessionLockListener = {
 
 void CHyprlock::onPasswordCheckTimer() {
     // check result
-    if (g_pAuth->didAuthSucceed()) {
+    if (g_pAuth->isAuthenticated()) {
         unlock();
     } else {
-        Debug::log(LOG, "Failed attempts: {}", m_sPasswordState.failedAttempts);
-
         m_sPasswordState.passBuffer = "";
         m_sPasswordState.failedAttempts += 1;
+        Debug::log(LOG, "Failed attempts: {}", m_sPasswordState.failedAttempts);
+
         g_pAuth->m_bDisplayFailText = true;
         forceUpdateTimers();
 
@@ -843,7 +848,7 @@ void CHyprlock::repeatKey(xkb_keysym_t sym) {
 }
 
 void CHyprlock::onKey(uint32_t key, bool down) {
-    if (m_bFadeStarted)
+    if (m_bFadeStarted || m_bTerminate)
         return;
 
     if (down && std::chrono::system_clock::now() < m_tGraceEnds) {
@@ -980,7 +985,8 @@ void CHyprlock::onLockFinished() {
     else
         ext_session_lock_v1_destroy(m_sLockState.lock);
 
-    m_bTerminate = true;
+    m_sLockState.lock = nullptr;
+    m_bTerminate      = true;
 }
 
 ext_session_lock_manager_v1* CHyprlock::getSessionLockMgr() {

src/core/hyprlock.hpp

@@ -31,6 +31,7 @@ class CHyprlock {
     void                            run();
 
     void                            unlock();
+    bool                            isUnlocked();
 
     void                            onGlobal(void* data, struct wl_registry* registry, uint32_t name, const char* interface, uint32_t version);
     void                            onGlobalRemoved(void* data, struct wl_registry* registry, uint32_t name);