fix(updater): prevent false positive triggers and unwanted app launches

patcher/patch_core.py

@@ -820,6 +820,10 @@ def is_curseforge_running() -> bool:
         return False
 
 def is_updater_running() -> bool:
+    """
+    Checks if a CurseForge or Overwolf updater/installer process is currently running.
+    Strictly scoped to avoid false positives from unrelated apps (Discord, Logitech, etc.).
+    """
     if os.name == "nt":
         try:
             import ctypes
@@ -847,9 +851,9 @@ def is_updater_running() -> bool:
                 if kernel32.Process32First(h_snap, ctypes.byref(pe)):
                     while True:
                         name = pe.szExeFile.decode('mbcs', errors='ignore').lower()
-                        if name in ("setup.exe", "installer.exe", "update.exe") or \
+                        # Strictly match CurseForge or Overwolf installer/updater processes
-                           ("curseforge" in name and any(k in name for k in ("update", "setup", "install"))) or \
+                        if ('curseforge' in name and any(k in name for k in ('update', 'setup', 'install'))) or \
-                           ("overwolf" in name and any(k in name for k in ("update", "setup", "install"))):
+                           ('overwolf' in name and any(k in name for k in ('installer', 'updater', 'setup'))):
                             found = True
                             break
                         if not kernel32.Process32Next(h_snap, ctypes.byref(pe)):
@@ -860,22 +864,6 @@ def is_updater_running() -> bool:
         except Exception:
             pass
 
-    try:
-        out = subprocess.check_output(
-            ["tasklist", "/FO", "CSV", "/NH"],
-            text=True, stderr=subprocess.DEVNULL, creationflags=CREATE_NO_WINDOW
-        )
-        for line in out.splitlines():
-            line = line.strip().lower()
-            if not line:
-                continue
-            parts = [p.strip('"') for p in line.split('","')]
-            if parts:
-                pname = parts[0]
-                if pname in ("setup.exe", "installer.exe") or ("curseforge" in pname and "updater" in pname):
-                    return True
-    except Exception:
-        pass
     return False
 
 def is_splash_running() -> bool:
@@ -1224,16 +1212,22 @@ def run_watcher_loop():
         if is_splash_running():
             return
 
-        needs_patch = not is_curseforge_patched(cf_dir) or is_updater_running()
+        # ONLY trigger if CurseForge is genuinely unpatched
-        if needs_patch:
+        if not is_curseforge_patched(cf_dir):
-            if now - last_splash_launch < 12.0:
+            if now - last_splash_launch < 15.0:
                 return
             last_splash_launch = now
-            wlog(f"CurseForge update or unpatched state detected ({trigger_reason}). Launching Splash Updater...")
+            wlog(f"CurseForge unpatched state detected ({trigger_reason}). Launching Splash Updater...")
             ok = launch_splash_updater()
             if not ok:
                 wlog("Could not launch Splash Updater; falling back to background patch.")
-                settled = wait_for_files_settled(cf_dir, timeout=90.0, log_fn=wlog, intercept_unpatched=True)
+                was_running = is_curseforge_running()
+                was_intercepted = [False]
+                def on_fb_log(msg: str):
+                    if "silenc" in msg.lower():
+                        was_intercepted[0] = True
+                    wlog(msg)
+                settled = wait_for_files_settled(cf_dir, timeout=90.0, log_fn=on_fb_log, intercept_unpatched=True)
                 if settled:
                     kill_curseforge()
                     success = False
@@ -1244,7 +1238,8 @@ def run_watcher_loop():
                         time.sleep(2)
                     if success:
                         wlog("★ CurseForge successfully re-patched after update!")
-                        subprocess.Popen([str(cf_dir / "CurseForge.exe")], creationflags=CREATE_NO_WINDOW)
+                        if was_running or was_intercepted[0]:
+                            subprocess.Popen([str(cf_dir / "CurseForge.exe")], creationflags=CREATE_NO_WINDOW)
                     else:
                         wlog("Failed to re-patch CurseForge after update.")
                 else:

patcher/patcher_gui.py

@@ -642,6 +642,14 @@ class SplashUpdaterWindow:
                     time.sleep(3.0)
                     return
 
+                # Early guard: if no target_pid, CurseForge is already patched, and no updater is running, exit immediately
+                if not self.target_pid and patch_core.is_curseforge_patched(cf_dir) and not patch_core.is_updater_running():
+                    self.root.after(0, self.root.destroy)
+                    return
+
+                was_running = patch_core.is_curseforge_running() or (self.target_pid is not None)
+                was_intercepted = [False]
+
                 if self.target_pid:
                     self.root.after(0, self.set_status, "Waiting for previous instance to exit...", f"CurseForge PID {self.target_pid}")
                     for _ in range(30):
@@ -658,6 +666,7 @@ class SplashUpdaterWindow:
                     elif "settle" in msg.lower() or "mb" in msg.lower():
                         self.root.after(0, self.set_status, "Finalizing update files...", msg)
                     elif "silenc" in msg.lower():
+                        was_intercepted[0] = True
                         self.root.after(0, self.set_status, "Silenced vanilla launcher in background...", "Preventing unpatched window display...")
 
                 settled = patch_core.wait_for_files_settled(cf_dir, timeout=90.0, log_fn=on_settle_log, intercept_unpatched=True)
@@ -696,11 +705,15 @@ class SplashUpdaterWindow:
                     time.sleep(2.0)
 
                 if success:
-                    self.root.after(0, self.set_status, "✓ Complete! Launching BetterCurseForge...", "Enjoy your ad-free experience!", "success")
+                    should_launch = was_running or was_intercepted[0] or (self.target_pid is not None)
-                    exe = cf_dir / "CurseForge.exe"
+                    if should_launch:
-                    if exe.exists():
+                        self.root.after(0, self.set_status, "✓ Complete! Launching BetterCurseForge...", "Enjoy your ad-free experience!", "success")
-                        creation_flags = 0x00000008 | 0x00000200 if os.name == "nt" else 0  # DETACHED_PROCESS | CREATE_NEW_PROCESS_GROUP
+                        exe = cf_dir / "CurseForge.exe"
-                        subprocess.Popen([str(exe)], cwd=str(cf_dir), creationflags=creation_flags)
+                        if exe.exists():
+                            creation_flags = 0x00000008 | 0x00000200 if os.name == "nt" else 0  # DETACHED_PROCESS | CREATE_NEW_PROCESS_GROUP
+                            subprocess.Popen([str(exe)], cwd=str(cf_dir), creationflags=creation_flags)
+                    else:
+                        self.root.after(0, self.set_status, "✓ Complete! BetterCurseForge is updated.", "CurseForge updated in background.", "success")
                     time.sleep(0.9)
                 else:
                     self.root.after(0, self.set_status, "Failed to apply patch.", "Check watcher.log for details.", "error")
@@ -723,13 +736,11 @@ if __name__ == "__main__":
             if arg in ("--watch", "watch"):
                 patch_core.run_watcher_loop()
                 sys.exit(0)
-            elif arg in ("--repatch-splash", "--splash", "splash"):
+            elif arg in ("--repatch-splash", "--splash", "splash", "--wait-for-update", "wait-for-update"):
-                pid = int(sys.argv[2]) if len(sys.argv) > 2 and sys.argv[2].isdigit() else None
-                splash = SplashUpdaterWindow(pid)
-                splash.run()
-                sys.exit(0)
-            elif arg in ("--wait-for-update", "wait-for-update"):
                 pid = int(sys.argv[2]) if len(sys.argv) > 2 and sys.argv[2].isdigit() else None
+                cf = patch_core.get_curseforge_dir()
+                if not pid and cf and patch_core.is_curseforge_patched(cf) and not patch_core.is_updater_running():
+                    sys.exit(0)
                 splash = SplashUpdaterWindow(pid)
                 splash.run()
                 sys.exit(0)