v1.1.9: Linux stability fixes, RAM safety, smart close behavior

Author: CalaKuad1

README.md

@@ -34,8 +34,8 @@
 
 | Platform | Download |
 |:--------:|:---------|
-| **Windows** | [📦 Download Installer (.exe)](https://github.com/CalaKuad1/Minecraft-Local-Server-GUI/releases/download/v1.1.7/Minecraft-Local-Server-GUI-Setup-1.1.7.exe) |
-| **Linux** | [📦 Download AppImage (.AppImage)](https://github.com/CalaKuad1/Minecraft-Local-Server-GUI/releases/download/v1.1.7/Minecraft-Local-Server-GUI-1.1.7.AppImage) |
+| **Windows** | [📦 Download Installer (.exe)](https://github.com/CalaKuad1/Minecraft-Local-Server-GUI/releases/download/v1.1.9/Minecraft-Local-Server-GUI-Setup-1.1.9.exe) |
+| **Linux** | [📦 Download AppImage (.AppImage)](https://github.com/CalaKuad1/Minecraft-Local-Server-GUI/releases/download/v1.1.9/Minecraft-Local-Server-GUI-1.1.9.AppImage) |
 
 > **Note:** The app automatically downloads and manages Java for you. Just install and play!
 
@@ -91,7 +91,7 @@
 ### ⚙️ Configuration
 - **Visual settings editor** — No file editing required
 - **server.properties GUI** — All options organized by category
-- **RAM allocation** — Customize min/max memory per server
+- **RAM allocation** — Customize min/max memory per server with smart system limits
 - **Player management** — Op, ban, whitelist with one click
 
 ### 👥 Players
@@ -170,7 +170,7 @@ This project is configured with GitHub Actions. To trigger a new release with Wi
 
 ### For Users (Installer)
 - **Windows 10/11** (64-bit)
-- **Linux** (Any disto supporting AppImage or `.deb`)
+- **Linux** (Any distro supporting AppImage or `.deb`)
 - **Internet connection** (for initial Java download)
 - ~500MB disk space
 
@@ -214,6 +214,12 @@ Server files are stored in the location you choose during setup. App configurati
 Click "Add Server" → "Use Existing" → Select your server folder. The app will auto-detect the server type and version.
 </details>
 
+<details>
+<summary><strong>Where is app data stored on Linux?</strong></summary>
+
+On Linux, all app data (Java runtimes, config files, logs) is stored in `~/.minecraft_server_gui/`. On Windows, it's in `%APPDATA%/MinecraftServerGUI`.
+</details>
+
 ---
 
 ## 📄 License

backend/api_server.exe

@@ -1,4 +1,5 @@
 import asyncio
+import collections
 import threading
 from fastapi import FastAPI, WebSocket, WebSocketDisconnect, HTTPException, Request, Query
 from fastapi.middleware.cors import CORSMiddleware
@@ -55,8 +56,8 @@
 # Enable CORS
 app.add_middleware(
     CORSMiddleware,
-    allow_origins=["*"],
-    allow_credentials=True,
+    allow_origin_regex=".*",
+    allow_credentials=False,
     allow_methods=["*"],
     allow_headers=["*"],
 )
@@ -127,7 +128,7 @@ def __init__(self):
         self.active_handlers = {} # server_id -> ServerHandler
 
         # App-level log history for Dashboard mini-console
-        self.app_log_history = []
+        self.app_log_history = collections.deque(maxlen=500)
 
     def start_background_tasks(self):
         if self._log_broadcaster_task is None:
@@ -288,8 +289,7 @@ def broadcast_log_sync(self, message, level="normal", server_id=None):
 
             if not is_verbose_installer:
                 self.app_log_history.append(msg_obj)
-                if len(self.app_log_history) > 500:
-                    self.app_log_history.pop(0)
+                # deque auto-evicts oldest when full — no manual pop needed
 
                 # Thread-safe enqueue into the asyncio queue (only non-verbose logs)
                 try:
@@ -1687,12 +1687,14 @@ def watch():
                     raise psutil.NoSuchProcess(parent_pid)
             except (psutil.NoSuchProcess, psutil.AccessDenied):
                 logging.warning("Parent process lost. Shutting down backend and servers...")
-                # Intentar cerrar servidores limpiamente si es posible
-                if state and state.server_handler:
-                    try:
-                        state.server_handler.stop(force=True, silent=True)
-                    except:
-                        pass
+                # Stop ALL active server handlers, not just the selected one
+                if state and state.active_handlers:
+                    for server_id, handler in state.active_handlers.items():
+                        try:
+                            if handler.is_running() or handler.is_starting():
+                                handler.stop(force=True, silent=True)
+                        except:
+                            pass
                 os._exit(0)
             time.sleep(2)
 
@@ -1908,6 +1910,37 @@ def progress(pct, msg):
     threading.Thread(target=run_plugin_install, daemon=True).start()
     return {"status": "started", "message": "Plugin installation started"}
 
+# --- System Info (RAM validation) ---
+
+@app.get("/system/info")
+def get_system_info():
+    """Returns system information for frontend validation (e.g. RAM limits)."""
+    try:
+        mem = psutil.virtual_memory()
+        total_gb = round(mem.total / (1024 ** 3), 1)
+        available_gb = round(mem.available / (1024 ** 3), 1)
+        return {
+            "total_ram_gb": total_gb,
+            "available_ram_gb": available_gb,
+            "cpu_count": psutil.cpu_count(logical=True),
+            # Recommended max: 80% of total RAM
+            "max_recommended_ram_gb": round(total_gb * 0.8, 1)
+        }
+    except Exception as e:
+        logging.error(f"Error getting system info: {e}")
+        return {"total_ram_gb": 16, "available_ram_gb": 8, "cpu_count": 4, "max_recommended_ram_gb": 12}
+
+@app.get("/servers/running")
+def get_running_servers():
+    """Returns whether any server is currently running. Used by Electron close handler."""
+    if not state:
+        return {"any_running": False}
+    for handler in state.active_handlers.values():
+        if handler.is_running() or handler.is_starting():
+            return {"any_running": True}
+    return {"any_running": False}
+
+
 if __name__ == "__main__":
     import uvicorn
     # Iniciar el watchdog antes de arrancar el servidor

backend/api_server.py

@@ -0,0 +1,38 @@
+# -*- mode: python ; coding: utf-8 -*-
+
+
+a = Analysis(
+    ['api_server.py'],
+    pathex=[],
+    binaries=[],
+    datas=[],
+    hiddenimports=[],
+    hookspath=[],
+    hooksconfig={},
+    runtime_hooks=[],
+    excludes=[],
+    noarchive=False,
+    optimize=0,
+)
+pyz = PYZ(a.pure)
+
+exe = EXE(
+    pyz,
+    a.scripts,
+    a.binaries,
+    a.datas,
+    [],
+    name='api_server',
+    debug=False,
+    bootloader_ignore_signals=False,
+    strip=False,
+    upx=True,
+    upx_exclude=[],
+    runtime_tmpdir=None,
+    console=True,
+    disable_windowed_traceback=False,
+    argv_emulation=False,
+    target_arch=None,
+    codesign_identity=None,
+    entitlements_file=None,
+)