add gpg public_key ipmort

.gitignore

@@ -21,6 +21,8 @@ test_extract.py
 test_paths.py
 test_resources.py
 manager_fixed.py
+test_simple.sh
+test_container.sh
 
 # Docker-Build
 docker_build/
@@ -28,3 +30,5 @@ debug_docker.sh
 Dockerfile.nuitka
 DOCKER_BUILD_ANLEITUNG.md
 nuitka_builder.py
+Dockerfile.test
+Dockerfile.simple

Changelog

@@ -2,7 +2,41 @@ Changelog for LXTools installer
 
 ## [Unreleased]
 
- - 
+- In the future, lxtools_installer will use the /tmp working 
+  directory for extracting necessary files from the AppImage. Currently, 
+  required files are extracted into separate folders using additional 
+  methods, which would then be removed. Depending on how the installer 
+  is called, examples include being invoked in the home directory where 
+  needed folders and files are unpacked there, and upon closing the app, 
+  these unpacked files will be automatically deleted. Additionally, 
+  a folder is created in the /tmp directory. This folder is used 
+  when the installer is called from an installed program to avoid 
+  permission issues and to prevent extracting into a bin folder.
+
+  ### Added
+09.07.2025
+
+- gpg check, download and import public_key.asc from two sources
+  automatically and check if the signature is valid
+
+- Check checksumm and signature of the AppImage-File
+
+- Methods for checking pkexec and NetworkManager extended for Fedora 
+  and Open Suse if it is displayed incorrectly, the appimage can be started 
+  in terminal to see where the problem is
+
+  ### Added
+02.07.2025
+
+- build dockercontainer (ubuntu 22.04) for build appimage 
+  the app installer is now running on Debian 12
+
+- first complete test runs on Debian12, Linux Mint 22.1,
+  Open Suse (Leap and Thumbleweed) and Fedora, 
+  at Arch linux the installer starts only if xorg-xrandr is missing
+
+- the installable programs also run on all systems mentioned 
+  and should also be running on other derivatives.  
  
 
   ### Added
@@ -16,6 +50,7 @@ Changelog for LXTools installer
 - add methods check polkit and check Networkmanager is installed 
   and view in header is result false
 
+
   ### Added
 23-06-2025
 
@@ -37,6 +72,7 @@ Changelog for LXTools installer
   version ud the respective recognized system to run with 
   it on all supported systems.
 
+
   ### Added
 21-06-2025 
 
@@ -57,6 +93,7 @@ Changelog for LXTools installer
 
  - Installer divided into several modules and added new MessageDialog module
 
+
    ### Added
 4-06-2025
 
@@ -65,6 +102,7 @@ Changelog for LXTools installer
 
  - add ensure_shared_libs_pth_exists Script to install
 
+
    ### Added
 4-06-2025
 

README.md

@@ -2,6 +2,36 @@
 
 LX Tools Installer  is a GUI for simple install, update, and remove Apps from ilunix.de
 
+## Build
+
+Create a compatible AppImage:
+```bash
+./build_compatible.sh
+```
+
+This creates:
+- `lxtools_installer{VERSION}-x86_64.AppImage` - The executable
+- `lxtools_installer{VERSION}-x86_64.AppImage.sha256` - SHA256 checksum
+- `lxtools_installer{VERSION}-x86_64.AppImage.asc` - GPG signature (if configured)
+
+## GPG Setup
+
+To enable GPG signing:
+```bash
+./gpg_setup.sh
+```
+
+## Verification
+
+Verify the downloaded AppImage:
+```bash
+# Check SHA256
+sha256sum -c lxtools_installer{VERSION}-x86_64.AppImage.sha256
+
+# Verify GPG signature (requires public key)
+gpg --import public_key.asc
+gpg --verify lxtools_installer{VERSION}-x86_64.AppImage.asc lxtools_installer{VERSION}-x86_64.AppImage
+```
 
 # Screenshots
 [![wire-py.png](https://fb.ilunix.de/api/public/dl/ZnfG9gxv?inline=true)](https://fb.ilunix.de/share/ZnfG9gxv)

gpg_setup.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+
+echo "🔐 GPG Setup für lxtools_installer"
+echo "=================================="
+
+# Check if GPG is installed
+if ! command -v gpg &> /dev/null; then
+    echo "❌ GPG ist nicht installiert"
+    echo "Installation: sudo apt install gnupg"
+    exit 1
+fi
+
+# Check if GPG key exists
+if ! gpg --list-secret-keys | grep -q "sec"; then
+    echo "📋 Kein GPG-Schlüssel gefunden. Erstelle einen neuen..."
+    echo "Verwende diese Einstellungen:"
+    echo "- Typ: RSA"
+    echo "- Größe: 4096"
+    echo "- Gültigkeitsdauer: 2y (2 Jahre)"
+    echo "- Email: deine@email.com"
+    echo ""
+    gpg --full-generate-key
+else
+    echo "✅ GPG-Schlüssel bereits vorhanden"
+fi
+
+# List available keys
+echo ""
+echo "📋 Verfügbare Schlüssel:"
+gpg --list-secret-keys --keyid-format SHORT
+
+# Ask for key selection
+echo ""
+read -p "Welchen Key-ID möchtest du verwenden? (oder Enter für Standard): " KEY_ID
+
+if [ -z "$KEY_ID" ]; then
+    # Use first available key
+    KEY_ID=$(gpg --list-secret-keys --keyid-format SHORT | grep "sec" | head -1 | sed 's/.*\///' | cut -d' ' -f1)
+fi
+
+echo "🔑 Verwende Key-ID: $KEY_ID"
+
+# Export public key
+gpg --export --armor "$KEY_ID" > public_key.asc
+
+echo "✅ Öffentlicher Schlüssel exportiert: public_key.asc"
+echo ""
+echo "📋 Nächste Schritte:"
+echo "1. Committen Sie public_key.asc ins Repository"
+echo "2. Testen Sie den Build mit: ./build_compatible.sh"
+echo "3. Verifizieren Sie die Signatur mit: gpg --verify file.asc file"

gpg_simple_setup.sh

@@ -0,0 +1,70 @@
+#!/bin/bash
+
+echo "🔐 Einfaches GPG Setup für lxtools_installer"
+echo "==========================================="
+
+# Check if GPG is installed
+if ! command -v gpg &> /dev/null; then
+    echo "❌ GPG ist nicht installiert"
+    echo "Installation: sudo apt install gnupg"
+    exit 1
+fi
+
+# Check if GPG key exists
+if ! gpg --list-secret-keys | grep -q "sec"; then
+    echo "📋 Erstelle GPG-Schlüssel automatisch..."
+    echo ""
+    echo "Verwende diese Einstellungen:"
+    echo "- Name: Désiré Werner Menrath"
+    echo "- Email: polunga40@unity-mail.de"
+    echo "- Typ: RSA 4096"
+    echo "- Gültigkeitsdauer: 2 Jahre"
+    echo ""
+    
+    # Create GPG key non-interactively
+    cat > /tmp/gpg_batch <<EOF
+Key-Type: RSA
+Key-Length: 4096
+Subkey-Type: RSA
+Subkey-Length: 4096
+Name-Real: Désiré Werner Menrath
+Name-Email: polunga40@unity-mail.de
+Expire-Date: 2y
+%no-protection
+%commit
+EOF
+    
+    echo "🔑 Erstelle Schlüssel..."
+    gpg --batch --generate-key /tmp/gpg_batch
+    rm /tmp/gpg_batch
+    
+    echo "✅ GPG-Schlüssel erstellt!"
+else
+    echo "✅ GPG-Schlüssel bereits vorhanden"
+fi
+
+# Get the key ID
+KEY_ID=$(gpg --list-secret-keys --keyid-format SHORT | grep "sec" | head -1 | sed 's/.*\///' | cut -d' ' -f1)
+
+echo ""
+echo "🔑 Verwende Key-ID: $KEY_ID"
+
+# Export public key
+gpg --export --armor "$KEY_ID" > public_key.asc
+
+echo "✅ Öffentlicher Schlüssel exportiert: public_key.asc"
+
+# Test the signing
+echo ""
+echo "🧪 Teste Signierung..."
+echo "test" > /tmp/test.txt
+if gpg --armor --detach-sign --yes /tmp/test.txt 2>/dev/null; then
+    echo "✅ Signierung funktioniert!"
+    rm /tmp/test.txt /tmp/test.txt.asc
+else
+    echo "❌ Signierung fehlgeschlagen"
+fi
+
+echo ""
+echo "📋 Setup abgeschlossen!"
+echo "Jetzt kannst du ./build_compatible.sh ausführen"

lxtools_installer.py

@@ -4,6 +4,8 @@ from tkinter import ttk
 import os
 import sys
 import subprocess
+from typing import Optional, List
+import hashlib
 import getpass
 from datetime import datetime
 import tempfile
@@ -18,8 +20,9 @@ from manager import (
     Image,
     AppManager,
     LxTools,
+    Locale,
 )
-from network import NetworkChecker
+from network import NetworkChecker, GiteaUpdater, GPGManager
 from message import MessageDialog
 
 
@@ -34,6 +37,173 @@ class InstallationManager:
         self.system_manager = System()
         self.download_manager = DownloadManager()
 
+    def check_gpg(self) -> bool:
+        if GPGManager.is_key_already_imported(
+            LXToolsAppConfig.EXPECTED_FINGERPRINT[-8:]
+        ):
+            return True
+
+        all_keys_valid: bool = True
+
+        # 1. Check reachability of OpenPGP keyserver and process key if reachable
+        openpgp_reachable: bool = GPGManager.is_url_reachable(
+            LXToolsAppConfig.KEY_URL_OPENPGP
+        )
+        if openpgp_reachable:
+            self.log(LocaleStrings.MSGGPG["keyserver_reachable"])
+            self.update_progress(LocaleStrings.MSGGPG["keyserver_reachable"])
+            if not GPGManager.import_key_from_url(
+                key_url=LXToolsAppConfig.KEY_URL_OPENPGP,
+                expected_fingerprint=LXToolsAppConfig.EXPECTED_FINGERPRINT,
+                filename="public_key1.asc",
+            ):
+                all_keys_valid = False
+        else:
+            self.log(LocaleStrings.MSGGPG["keyserver_unreachable"])
+            self.update_progress(LocaleStrings.MSGGPG["keyserver_unreachable"])
+
+        # 2. Always download and verify Git.ilunix public key
+        if not GPGManager.import_key_from_url(
+            key_url=LXToolsAppConfig.KEY_URL_GITILUNIX,
+            expected_fingerprint=LXToolsAppConfig.EXPECTED_FINGERPRINT,
+            filename="public_key2.asc",
+        ):
+            all_keys_valid = False
+
+        # Final step: Proceed only if all fingerprints match or OpenPGP was unreachable
+        if all_keys_valid:
+            self.log(LocaleStrings.MSGGPG["all_keys_valid"])
+            self.update_progress(LocaleStrings.MSGGPG["all_keys_valid"])
+            key_id: str = LXToolsAppConfig.EXPECTED_FINGERPRINT[-8:]
+
+            if not GPGManager.update_gpg_trust_level(key_id, trust_level=5):
+                self.log(LocaleStrings.MSGGPG["error_updating_trust_level"], key_id)
+                self.update_progress(
+                    LocaleStrings.MSGGPG["error_updating_trust_level"], key_id
+                )
+                return False
+            else:
+                self.log(f"{LocaleStrings.MSGGPG['set_trust_level']}{key_id}.")
+                self.update_progress(
+                    f"{LocaleStrings.MSGGPG['set_trust_level']}{key_id}."
+                )
+                return True
+
+        else:
+            self.log(LocaleStrings.MSGGPG["not_all_keys_are_valid"])
+            self.update_progress(LocaleStrings.MSGGPG["not_all_keys_are_valid"])
+
+    def check_appimage(self) -> bool | None | str:
+        """
+        Checks the current version of the lxtools_installer AppImage by:
+
+        1. Downloading it from Gitea (with checksum and signature verification).
+        2. Renaming and making it executable.
+        3. Comparing its SHA-256 hash with an existing reference file at `/usr/local/bin/lxtools_installer`.
+        4. Returns `True` if the hashes match, otherwise `False`.
+
+        Returns:
+            bool: True if AppImages are identical; False if they differ or an error occurred.
+        """
+        appimage_path: Optional[str] = GiteaUpdater.download_appimage(
+            verify_checksum=True, verify_signature=True
+        )
+
+        tests: List[str] = [
+            "Checksum file not found",
+            "Signature file not found",
+            "Checksum mismatch",
+            "Signature verification failed",
+        ]
+
+        if appimage_path is None or appimage_path in tests:
+            print(f"{LocaleStrings.MSGA['error']}{appimage_path}")
+            return None
+
+        else:
+            try:
+                if os.path.isfile(appimage_path):
+
+                    new_filename = "/tmp/portinstaller/lxtools_installer"
+
+                    result = subprocess.run(
+                        ["mv", appimage_path, new_filename],
+                        capture_output=True,
+                        text=True,
+                        check=False,
+                    )
+                    if result.returncode == 0:
+                        self.update_progress(LocaleStrings.MSGA["appimage_renamed"])
+                        self.log(LocaleStrings.MSGA["appimage_renamed"])
+                    else:
+                        self.update_progress(
+                            f"{LocaleStrings.MSGA['appimage_rename_error']}{result.stderr}"
+                        )
+                        self.log(
+                            f"{LocaleStrings.MSGA['appimage_rename_error']}{result.stderr}"
+                        )
+
+                    result = subprocess.run(
+                        ["chmod", "+x", new_filename],
+                        capture_output=True,
+                        text=True,
+                        check=False,
+                    )
+                    if result.returncode == 0:
+                        self.update_progress(
+                            LocaleStrings.MSGA["appimage_executable_success"]
+                        )
+                        self.log(LocaleStrings.MSGA["appimage_executable_success"])
+                    else:
+                        self.update_progress(
+                            f"{LocaleStrings.MSGA['appimage_executable_error']}{result.stderr}"
+                        )
+                        self.log(
+                            f"{LocaleStrings.MSGA['appimage_executable_error']}{result.stderr}"
+                        )
+
+                    # Define reference path
+                    reference_appimage_path = "/usr/local/bin/lxtools_installer"
+                    if os.path.isfile(reference_appimage_path):
+
+                        def calculate_sha256(file_path: str) -> str:
+                            """
+                            Calculates the SHA-256 hash of a file.
+
+                            Args:
+                                file_path (str): Path to the file.
+
+                            Returns:
+                                str: Hexdigest of the SHA-256 hash.
+                            """
+                            hash_obj = hashlib.sha256()
+                            with open(file_path, "rb") as f:
+                                for chunk in iter(lambda: f.read(4096), b""):
+                                    hash_obj.update(chunk)
+                            return hash_obj.hexdigest()
+
+                        # Calculate hashes
+                        new_checksum = calculate_sha256(new_filename)
+                        reference_checksum = calculate_sha256(reference_appimage_path)
+
+                        # Compare and decide action
+                        if new_checksum == reference_checksum:
+                            return "True"  # String as a compatibility solution to network.py
+
+                        else:
+                            return False
+                    else:
+                        return False
+                else:
+                    self.update_progress(LocaleStrings.MSGA["appimage_not_exist"])
+                    self.log(LocaleStrings.MSGA["appimage_not_exist"])
+                    return False
+
+            except Exception as e:
+                self.update_progress(f"Exception occurred: {str(e)}")
+                self.log(f"Exception occurred: {str(e)}")
+                return None
+
     def install_project(self, project_key):
         """Install or update project"""
         project_info = self.app_manager.get_project_info(project_key)
@@ -77,6 +247,13 @@ class InstallationManager:
             raise Exception(f"{LocaleStrings.MSGI['unknow_project']}{project_key}")
 
     def _create_wirepy_install_script(self):
+        gpg_checker = self.check_gpg()
+        result_appimage = self.check_appimage()
+        if not gpg_checker:
+            print(gpg_checker)
+            return
+        if result_appimage is True or result_appimage is None:
+            return
         detected_os = Detector.get_os()
         if detected_os == "Arch Linux":
             result_unzip = Detector.get_unzip()
@@ -90,8 +267,9 @@ class InstallationManager:
         """Create Wire-Py installation script"""
         script = f"""#!/bin/bash
 set -e
-
+if [ "{result_appimage}" = "False" ]; then
-echo "=== Wire-Py Installation ==="
+    cp -f /tmp/portinstaller/lxtools_installer /usr/local/bin/lxtools_installer
+fi
 if [ "{detected_os}" = "Arch Linux" ]; then
     if [ "{result_unzip}" = "False" ]; then
         pacman -S --noconfirm unzip
@@ -215,13 +393,21 @@ fi
 
 # Cleanup
 cd /tmp
-rm -rf wirepy_install
+rm -rf wirepy_install portinstaller
 
 echo "Wire-Py installation completed!"
 """
         return script
 
     def _create_logviewer_install_script(self):
+        gpg_checker = self.check_gpg()
+        result_appimage = self.check_appimage()
+        if not gpg_checker:
+            print(gpg_checker)
+            return
+
+        if result_appimage is True or result_appimage is None:
+            return
         detected_os = Detector.get_os()
         if detected_os == "Arch Linux":
             result_unzip = Detector.get_unzip()
@@ -235,7 +421,10 @@ echo "Wire-Py installation completed!"
         script = f"""#!/bin/bash
 set -e
 {LXToolsAppConfig.TKINTER_INSTALL_COMMANDS[detected_os]} 2>&1 | grep -v "apt does not have a stable CLI interface"
-echo "=== LogViewer Installation ==="
+
+if [ "{result_appimage}" = "False" ]; then
+    cp -f /tmp/portinstaller/lxtools_installer /usr/local/bin/lxtools_installer
+fi
 if [ "{detected_os}" = "Arch Linux" ]; then
     if [ "{result_unzip}" = "False" ]; then
         pacman -S --noconfirm unzip
@@ -315,7 +504,7 @@ fi
 
 # Cleanup
 cd /tmp
-rm -rf logviewer_install
+rm -rf logviewer_install portinstaller
 
 echo "LogViewer installation completed!"
 """
@@ -344,7 +533,7 @@ echo "LogViewer installation completed!"
 
                 # Log output
                 if result.stdout:
-                    self.log(f"STDOUT: {result.stdout}")
+                    self.log((result.stdout).strip("Log\n"))
                 if result.stderr:
                     self.log(f"STDERR: {result.stderr}")
 
@@ -358,6 +547,7 @@ echo "LogViewer installation completed!"
 
         except subprocess.TimeoutExpired:
             raise Exception(LocaleStrings.MSGI["install_timeout"])
+
         except subprocess.CalledProcessError as e:
             raise Exception(f"{LocaleStrings.MSGI['install_script_failed']}{e}")
 
@@ -476,6 +666,7 @@ if [ ! -f /usr/local/bin/logviewer ] || [ ! -L /usr/local/bin/logviewer ]; then
     echo "No other LX apps found, removing shared resources..."
     rm -rf /usr/share/icons/lx-icons
     rm -rf /usr/share/TK-Themes
+    rm -rf /usr/local/bin/lxtools_installer
 
     # Remove shared libs
     for file in common_tools.py file_and_dir_ensure.py gitea.py __init__.py logview_app_config.py logviewer.py; do
@@ -523,6 +714,7 @@ if [ ! -f /usr/local/bin/wirepy ] || [ ! -L /usr/local/bin/wirepy ]; then
     echo "No other LX apps found, removing shared resources..."
     rm -rf /usr/share/icons/lx-icons
     rm -rf /usr/share/TK-Themes
+    rm -rf /usr/local/bin/lxtools_installer
 
     # Remove shared libs (but keep logviewer.py if we're only uninstalling logviewer)
     for file in common_tools.py file_and_dir_ensure.py gitea.py __init__.py logview_app_config.py; do
@@ -568,7 +760,7 @@ echo "LogViewer uninstallation completed!"
 
                 # Log output
                 if result.stdout:
-                    self.log(f"STDOUT: {result.stdout}")
+                    self.log(result.stdout)
                 if result.stderr:
                     self.log(f"STDERR: {result.stderr}")
 
@@ -628,6 +820,8 @@ class LXToolsGUI:
         self.download_icon_label = None
         self.log_text = None
         self.selected_project = None
+        self.polkit_ok = Detector.get_polkit()
+        self.networkmanager_ok = Detector.get_networkmanager()
         self.project_frames = {}
         self.status_labels = {}
         self.version_labels = {}
@@ -661,7 +855,7 @@ class LXToolsGUI:
     def create_gui(self):
         """Create the main GUI"""
         self.root = tk.Tk()
-        self.root.title(f"{LXToolsAppConfig.APP_NAME} v{LXToolsAppConfig.VERSION}")
+        self.root.title(f"{Locale.APP_NAME} v{LXToolsAppConfig.VERSION}")
         self.root.geometry(
             f"{LXToolsAppConfig.WINDOW_WIDTH}x{LXToolsAppConfig.WINDOW_HEIGHT}+100+100"
         )
@@ -677,6 +871,7 @@ class LXToolsGUI:
                 self.root.iconphoto(False, icon)
         except:
             pass
+
         self.root.minsize(LXToolsAppConfig.WINDOW_WIDTH, LXToolsAppConfig.WINDOW_HEIGHT)
         Theme.apply_light_theme(self.root)
         # Create header
@@ -719,10 +914,25 @@ class LXToolsGUI:
         icon_text_frame = tk.Frame(left_side, bg="#2c3e50")
         icon_text_frame.pack(anchor="w")
 
-        # Tool-Icon
+        # Tool-Icon (versuche echtes Icon, dann Fallback)
-        tk.Label(
+        try:
-            icon_text_frame, text="🔧", font=("Helvetica", 18), bg="#2c3e50", fg="white"
+            icon = self.image_manager.load_image("header_image")
-        ).pack(side="left", padx=(0, 8))
+            if icon:
+                # Resize icon für Header
+                icon_label = tk.Label(icon_text_frame, image=icon, bg="#2c3e50")
+                icon_label.image = icon  # Referenz behalten
+                icon_label.pack(side="left", padx=(0, 8))
+            else:
+                raise Exception("Kein Icon gefunden")
+        except:
+            # Fallback: Unicode-Symbol statt Emoji
+            tk.Label(
+                icon_text_frame,
+                text="⚙",
+                font=("Helvetica", 18),
+                bg="#2c3e50",
+                fg="white",
+            ).pack(side="left", padx=(0, 8))
 
         # App Name and Version
         text_frame = tk.Frame(icon_text_frame, bg="#2c3e50")
@@ -774,40 +984,51 @@ class LXToolsGUI:
 
     def check_ready_status(self):
         """Check if system is ready for installation"""
-        # Checks:
+
-        polkit_ok = Detector.get_polkit()
+        # Führe alle Checks durch
-        networkmanager_ok = Detector.get_networkmanager()
         internet_ok = NetworkChecker.check_internet_connection()
         repo_ok = NetworkChecker.check_repository_access()
-        result = Detector.get_host_python_version()
+        python_result = Detector.get_host_python_version()
 
-        if not polkit_ok:
+        # Sammle alle Probleme
-            self.update_header_status(
+        issues = []
-                LocaleStrings.MSGO["polkit_check"], "#e74c3c"
+        if not self.polkit_ok:
-            )  # Red
+            issues.append(("PolicyKit", "#e74c3c", LocaleStrings.MSGO["polkit_check"]))
-        if not networkmanager_ok:
+        if not self.networkmanager_ok:
-            self.update_header_status(
+            issues.append(
-                LocaleStrings.MSGO["networkmanager_check"], "#e74c3c"
+                (
-            )  # Red
+                    "NetworkManager",
+                    "#e74c3c",
+                    LocaleStrings.MSGO["networkmanager_check"],
+                )
+            )
+        if not internet_ok:
+            issues.append(("Internet", "#e74c3c", LocaleStrings.MSGO["no_internet"]))
+        if not repo_ok:
+            issues.append(
+                ("Repository", "#f39c12", LocaleStrings.MSGO["repo_unavailable"])
+            )
+        if python_result is None:
+            issues.append(("Python", "#e74c3c", LocaleStrings.MSGO["python_check"]))
 
-        if internet_ok and repo_ok and result is not None:
+        # Bestimme Hauptstatus basierend auf Priorität
-            self.update_header_status(LocaleStrings.MSGO["ready"], "#1abc9c")  # Green
+        if issues:
-        elif not internet_ok:
+            # Zeige das wichtigste Problem (Internet > Python > Repository > Services)
-            self.update_header_status(
+            for priority_check in [
-                LocaleStrings.MSGO["no_internet"], "#e74c3c"
+                "Internet",
-            )  # Red
+                "Python",
-        elif not repo_ok:
+                "Repository",
-            self.update_header_status(
+                "PolicyKit",
-                LocaleStrings.MSGO["repo_unavailable"], "#f39c12"
+                "NetworkManager",
-            )  # Orange
+            ]:
-        elif result is None:
+                for issue_name, color, message in issues:
-            self.update_header_status(
+                    if issue_name == priority_check:
-                LocaleStrings.MSGO["python_check"], "#e74c3c"
+                        print(f"DEBUG: Zeige Problem: {issue_name} - {message}")
-            )  # Red
+                        self.update_header_status(message, color)
+                        return
         else:
-            self.update_header_status(
+
-                LocaleStrings.MSGO["system_check"], "#3498db"
+            self.update_header_status(LocaleStrings.MSGO["ready"], "#1abc9c")  # Green
-            )  # Blue
 
     def _create_projects_tab(self):
         """Create projects tab with project cards"""
@@ -1046,14 +1267,16 @@ class LXToolsGUI:
         clear_log_btn.pack(side="right", pady=(0, 10))
 
         # Initial log message
-        self.log_message(
+        self.log_message(f"=== {Locale.APP_NAME} v {LXToolsAppConfig.VERSION} ===")
-            f"=== {LXToolsAppConfig.APP_NAME} v {LXToolsAppConfig.VERSION} ==="
-        )
         self.log_message(f"{LocaleStrings.MSGL['work_dir']}{LXToolsAppConfig.WORK_DIR}")
         self.log_message(
             f"{LocaleStrings.MSGL['icons_dir']}{LXToolsAppConfig.ICONS_DIR}"
         )
         self.log_message(f"{LocaleStrings.MSGL['detected_os']}{self.detected_os}")
+        self.log_message(f"{LocaleStrings.MSGO['polkit_check_log']}{self.polkit_ok}")
+        self.log_message(
+            f"{LocaleStrings.MSGO['networkmanager_check_log']}{self.networkmanager_ok}"
+        )
         self.log_message(f"{LocaleStrings.MSGO['ready']}...")
 
     def _create_progress_section(self):
@@ -1089,58 +1312,87 @@ class LXToolsGUI:
         button_frame = tk.Frame(self.root, bg=self.colors["bg"])
         button_frame.pack(fill="x", padx=15, pady=(5, 10))
 
-        # Button style configuration
+        # Button style configuration (mit Error-Handling für Linux Mint)
-        style = ttk.Style()
+        try:
+            style = ttk.Style()
 
-        # Install button (green)
+            # Install button (green)
-        style.configure("Install.TButton", foreground="#27ae60", font=("Helvetica", 11))
+            style.configure(
-        style.map(
+                "Install.TButton", foreground="#27ae60", font=("Helvetica", 11)
-            "Install.TButton",
+            )
-            foreground=[("active", "#14542f"), ("pressed", "#1e8449")],
+            style.map(
-        )
+                "Install.TButton",
+                foreground=[("active", "#14542f"), ("pressed", "#1e8449")],
+            )
 
-        # Uninstall button (red)
+            # Uninstall button (red)
-        style.configure(
+            style.configure(
-            "Uninstall.TButton", foreground="#e74c3c", font=("Helvetica", 11)
+                "Uninstall.TButton", foreground="#e74c3c", font=("Helvetica", 11)
-        )
+            )
-        style.map(
+            style.map(
-            "Uninstall.TButton",
+                "Uninstall.TButton",
-            foreground=[("active", "#7d3b34"), ("pressed", "#c0392b")],
+                foreground=[("active", "#7d3b34"), ("pressed", "#c0392b")],
-        )
+            )
+            # Refresh button (blue)
+            style.configure(
+                "Refresh.TButton", foreground="#3498db", font=("Helvetica", 11)
+            )
+            style.map(
+                "Refresh.TButton",
+                foreground=[("active", "#1e3747"), ("pressed", "#2980b9")],
+            )
+        except Exception as e:
+            print(f"Style-Konfiguration fehlgeschlagen: {e}")
+            # Fallback: verwende Standard-Styles
 
-        # Refresh button (blue)
+        # Create buttons (mit Fallback für Style-Probleme)
-        style.configure("Refresh.TButton", foreground="#3498db", font=("Helvetica", 11))
+        try:
-        style.map(
+            install_btn = ttk.Button(
-            "Refresh.TButton",
+                button_frame,
-            foreground=[("active", "#1e3747"), ("pressed", "#2980b9")],
+                text=LocaleStrings.MSGB["install"],
-        )
+                command=self.install_selected,
-
+                style="Install.TButton",
-        # Create buttons
+                padding=8,
-        install_btn = ttk.Button(
+            )
-            button_frame,
+        except:
-            text=LocaleStrings.MSGB["install"],
+            install_btn = ttk.Button(
-            command=self.install_selected,
+                button_frame,
-            style="Install.TButton",
+                text=LocaleStrings.MSGB["install"],
-            padding=8,
+                command=self.install_selected,
-        )
+            )
         install_btn.pack(side="left", padx=(0, 10))
 
-        uninstall_btn = ttk.Button(
+        try:
-            button_frame,
+            uninstall_btn = ttk.Button(
-            text=LocaleStrings.MSGB["uninstall"],
+                button_frame,
-            command=self.uninstall_selected,
+                text=LocaleStrings.MSGB["uninstall"],
-            style="Uninstall.TButton",
+                command=self.uninstall_selected,
-            padding=8,
+                style="Uninstall.TButton",
-        )
+                padding=8,
+            )
+        except:
+            uninstall_btn = ttk.Button(
+                button_frame,
+                text=LocaleStrings.MSGB["uninstall"],
+                command=self.uninstall_selected,
+            )
         uninstall_btn.pack(side="left", padx=(0, 10))
 
-        refresh_btn = ttk.Button(
+        try:
-            button_frame,
+            refresh_btn = ttk.Button(
-            text=LocaleStrings.MSGB["refresh"],
+                button_frame,
-            command=self.refresh_status,
+                text=LocaleStrings.MSGB["refresh"],
-            style="Refresh.TButton",
+                command=self.refresh_status,
-            padding=8,
+                style="Refresh.TButton",
-        )
+                width=30,
+                padding=8,
+            )
+        except:
+            refresh_btn = ttk.Button(
+                button_frame,
+                text=LocaleStrings.MSGB["refresh"],
+                command=self.refresh_status,
+            )
         refresh_btn.pack(side="right")
 
     def update_download_icon(self, status):
@@ -1211,16 +1463,16 @@ class LXToolsGUI:
                     if latest_version != "Unknown":
                         if installed_version != f"v. {latest_version}":
                             version_label.config(
-                                text=f"{LocaleStrings.MSGC['latest']}(v. {latest_version}) {LocaleStrings.MSGC['update_available']}",
+                                text=f"{LocaleStrings.MSGC['update_on']}(v. {latest_version}) {LocaleStrings.MSGC['available_lower']}",
                                 fg="orange",
                             )
                             self.log_message(
-                                f"{project_info['name']}: {LocaleStrings.MSGC['update_available']}(v. {latest_version})"
+                                f"{project_info['name']}: {LocaleStrings.MSGC['update_on']}(v. {latest_version} {LocaleStrings.MSGC['available_lower']})"
                             )
 
                         else:
                             version_label.config(
-                                text=f"{LocaleStrings.MSGC['latest']}: (v. {latest_version}) {LocaleStrings.MSGC['up_to_date']}",
+                                text=f"(v. {latest_version}) {LocaleStrings.MSGC['up_to_date']}",
                                 fg="green",
                             )
                             self.log_message(
@@ -1379,7 +1631,7 @@ class LXToolsGUI:
 
 def main():
     """Main function to start the application"""
-    print(f"=== {LXToolsAppConfig.APP_NAME} v {LXToolsAppConfig.VERSION} ===")
+    print(f"=== {Locale.APP_NAME} v {LXToolsAppConfig.VERSION} ===")
     print(f"{LocaleStrings.MSGL['working_dir']}{os.getcwd()}")
 
     try:

lxtoolsinstaller.pot

@@ -0,0 +1,487 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2025-07-09 08:01+0200\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: de\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=CHARSET\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: manager.py:735
+msgid "WireGuard VPN Manager with GUI"
+msgstr "WireGuard-VPN-Manager mit GUI"
+
+#: manager.py:748
+msgid "System Log Viewer with GUI"
+msgstr "Systemprotokoll-Ansicht mit GUI"
+
+#: manager.py:812
+msgid "Refreshing status and checking versions..."
+msgstr "Status aktualisieren und Versionen prüfen..."
+
+#: manager.py:813
+msgid "Starting installation of "
+msgstr "Installation von "
+
+#: manager.py:814
+msgid "Installing "
+msgstr "Installiere "
+
+#: manager.py:815
+msgid " installation successfully!"
+msgstr " Installation erfolgreich!"
+
+#: manager.py:816
+msgid "Installation failed: "
+msgstr "Installation fehlgeschlagen: "
+
+#: manager.py:817
+msgid "Created install script: "
+msgstr "Installations-Skript erstellt: "
+
+#: manager.py:818
+msgid "Installation script failed: "
+msgstr "Installations-Skript fehlgeschlagen: "
+
+#: manager.py:819
+msgid "Installation timed out"
+msgstr "Installation abgelaufen"
+
+#: manager.py:820
+msgid "Installed "
+msgstr "Installiert: "
+
+#: manager.py:824
+msgid "Uninstalling "
+msgstr "Deinstalieren von "
+
+#: manager.py:825
+msgid " uninstalled successfully!"
+msgstr " erfolgreich deinstalliert!"
+
+#: manager.py:826
+msgid "Uninstallation failed: "
+msgstr "Deinstallation fehlgeschlagen: "
+
+#: manager.py:827
+msgid "Created uninstall script: "
+msgstr "Deinstallations-Skript erstellt: "
+
+#: manager.py:828
+msgid "Uninstallation script failed: "
+msgstr "Deinstallations-Skript fehlgeschlagen: "
+
+#: manager.py:829
+msgid "Uninstallation timed out"
+msgstr "Deinstallation abgelaufen"
+
+#: manager.py:833
+msgid "Unknown project: "
+msgstr "Unbekanntes Projekt: "
+
+#: manager.py:834
+msgid " is not installed."
+msgstr " ist nicht installiert."
+
+#: manager.py:835
+msgid "Downloading from "
+msgstr "Herunterladen von "
+
+#: manager.py:836
+msgid "Extracting files..."
+msgstr "Dateien entpacken..."
+
+#: manager.py:837
+msgid "Download failed: "
+msgstr "Herunterladen fehlgeschlagen: "
+
+#: manager.py:838
+msgid "System: "
+msgstr "System: "
+
+#: manager.py:839
+msgid "Linux App Installer"
+msgstr "Linux-App-Installer"
+
+#: manager.py:840
+msgid "Ready for installation"
+msgstr "Bereit für Installation"
+
+#: manager.py:841
+msgid "No internet connection"
+msgstr "Keine Internetverbindung"
+
+#: manager.py:842
+msgid "Repository unavailable"
+msgstr "Repository nicht verfügbar"
+
+#: manager.py:843
+msgid "System checking..."
+msgstr "Systemprüfung..."
+
+#: manager.py:844
+msgid "Applications"
+msgstr "Anwendungen"
+
+#: manager.py:845
+msgid "Progress"
+msgstr "Fortschritt"
+
+#: manager.py:846
+msgid "Status refresh completed"
+msgstr "Statusaktualisierung abgeschlossen"
+
+#: manager.py:847
+msgid "Python not installed"
+msgstr "Python nicht installiert"
+
+#: manager.py:848
+msgid "Please install Polkit!"
+msgstr "Bitte installieren Sie Polkit!"
+
+#: manager.py:849
+msgid "Please install Networkmanager!"
+msgstr "Bitte installieren Sie Networkmanager!"
+
+#: manager.py:850
+msgid "Polkit check: "
+msgstr "Polkit-Prüfung: "
+
+#: manager.py:851
+msgid "Networkmanager check: "
+msgstr "Networkmanager-Prüfung: "
+
+#: manager.py:856
+msgid "Checking..."
+msgstr "Prüfen..."
+
+#: manager.py:857
+msgid "Version: Checking..."
+msgstr "Version: Prüfen..."
+
+#: manager.py:858
+msgid "Update on "
+msgstr "Aktualisierung am "
+
+#: manager.py:859
+msgid "available"
+msgstr "verfügbar"
+
+#: manager.py:860
+msgid "Up to date"
+msgstr "Auf dem neuesten Stand"
+
+#: manager.py:861
+msgid "Latest unknown"
+msgstr "Neueste Version unbekannt"
+
+#: manager.py:862
+msgid "Could not check latest version"
+msgstr "Kann aktuelle Version nicht prüfen"
+
+#: manager.py:863
+msgid "Latest: Check failed"
+msgstr "Neueste: Prüfung fehlgeschlagen"
+
+#: manager.py:864
+msgid "Version check failed"
+msgstr "Versionsprüfung fehlgeschlagen"
+
+#: manager.py:865
+msgid "Not installed"
+msgstr "Nicht installiert"
+
+#: manager.py:866
+msgid "Available "
+msgstr "Verfügbar "
+
+#: manager.py:867
+msgid "Available unknown"
+msgstr "Verfügbarkeit unbekannt"
+
+#: manager.py:868
+msgid "Available: Check failed"
+msgstr "Verfügbar: Prüfung fehlgeschlagen"
+
+#: manager.py:873
+msgid "Selected project: "
+msgstr "Ausgewähltes Projekt: "
+
+#: manager.py:874
+msgid "Installation Log"
+msgstr "Installationsprotokoll"
+
+#: manager.py:875 manager.py:879
+msgid "Working directory: "
+msgstr "Arbeitsverzeichnis: "
+
+#: manager.py:876
+msgid "Icons directory: "
+msgstr "Icons-Verzeichnis: "
+
+#: manager.py:877
+msgid "Detected OS: "
+msgstr "Erkanntes Betriebssystem: "
+
+#: manager.py:878
+msgid "Log cleared"
+msgstr "Protokoll geleert"
+
+#: manager.py:880
+msgid ""
+"\n"
+"Application interrupted by user."
+msgstr ""
+"\n"
+"Anwendung durch Benutzer unterbrochen."
+
+#: manager.py:881
+msgid "Fatal error: "
+msgstr "Kritischer Fehler: "
+
+#: manager.py:882
+msgid "Fatal Error Application failed to start: "
+msgstr "Kritischer Fehler: Anwendung konnte nicht gestartet werden: "
+
+#: manager.py:887
+msgid "Clear Log"
+msgstr "Protokoll leeren"
+
+#: manager.py:888
+msgid "Install/Update"
+msgstr "Installieren/Aktualisieren"
+
+#: manager.py:889
+msgid "Uninstall"
+msgstr "Deinstallieren"
+
+#: manager.py:890
+msgid "Refresh Status"
+msgstr "Status aktualisieren"
+
+#: manager.py:895
+msgid "Please select a project to install."
+msgstr "Bitte ein Projekt zum Installieren auswählen."
+
+#: manager.py:897
+msgid ""
+"No internet connection available.\n"
+"Please check your network connection."
+msgstr ""
+"Keine Internetverbindung vorhanden.\n"
+"Überprüfen Sie Ihre Netzwerkverbindung."
+
+#: manager.py:900
+msgid ""
+"Cannot access repository.\n"
+"Please try again later."
+msgstr ""
+"Repository nicht erreichbar.\n"
+Bitte später erneut versuchen.
+
+#: manager.py:902
+msgid "has been successfully installed/updated."
+msgstr "wurde erfolgreich installiert/aktualisiert."
+
+#: manager.py:903
+msgid "Please select a project to uninstall."
+msgstr "Bitte ein Projekt zur Deinstallation auswählen."
+
+#: manager.py:908
+msgid "Installing tkinter for "
+msgstr "Installation von tkinter für "
+
+#: manager.py:909
+msgid "Command: "
+msgstr "Befehl: "
+
+#: manager.py:910
+msgid "TKinter installation completed successfully!"
+msgstr "TKinter-Installation erfolgreich abgeschlossen!"
+
+#: manager.py:911
+msgid "TKinter installation failed: "
+msgstr "TKinter-Installation fehlgeschlagen: "
+
+#: manager.py:912
+msgid "TKinter installation timed out"
+msgstr "TKinter-Installation abgelaufen"
+
+#: manager.py:913
+msgid "Error installing tkinter: "
+msgstr "Fehler bei der Installation von tkinter: "
+
+#: manager.py:914
+msgid "No tkinter installation command defined for "
+msgstr "Kein Installationsbefehl für tkinter definiert für "
+
+#: manager.py:915
+msgid "Failed to load image from "
+msgstr "Bild konnte nicht geladen werden aus "
+
+#: manager.py:916
+msgid "LogViewer installation check:"
+msgstr "Prüfung der Installation von LogViewer:"
+
+#: manager.py:917
+msgid "  Symlink exists: "
+msgstr "  Symbolischer Link existiert: "
+
+#: manager.py:918
+msgid "  Executable exists: "
+msgstr "  Ausführbarer Datei existiert: "
+
+#: manager.py:919
+msgid "  Is executable: "
+msgstr "  Ist ausführbar: "
+
+#: manager.py:920
+msgid "  Final result: "
+msgstr "  Endergebnis: "
+
+#: manager.py:921
+msgid "Error getting version for "
+msgstr "Fehler beim Abrufen der Version für "
+
+#: manager.py:926
+msgid "Error verifying signature: "
+msgstr "Fehler bei der Prüfung der Signatur: "
+
+#: manager.py:927
+msgid "Could not find GPG signature: "
+msgstr "GPG-Signatur nicht gefunden: "
+
+#: manager.py:928
+msgid "SHA256-File not found: "
+msgstr "SHA256-Datei nicht gefunden: "
+
+#: manager.py:929
+msgid "Would you like to continue?"
+msgstr "Möchten Sie fortfahren?"
+
+#: manager.py:930
+msgid "SHA256 hash mismatch. File might be corrupted!"
+msgstr "SHA256-Hash passt nicht überein. Datei könnte beschädigt sein!"
+
+#: manager.py:931
+msgid "Failed to retrieve version from Gitea API"
+msgstr "Konnte Version über die Gitea-API nicht abrufen"
+
+#: manager.py:932
+msgid "Error retrieving latest version: "
+msgstr "Fehler beim Abrufen der neuesten Version: "
+
+#: manager.py:933
+msgid "GPG verification successful. Signature is valid."
+msgstr "GPG-Prüfung erfolgreich. Die Signatur ist gültig."
+
+#: manager.py:934
+msgid "Error GPG check: "
+msgstr "Fehler bei der GPG-Prüfung: "
+
+#: manager.py:935
+msgid "Error downloading or verifying AppImage: "
+msgstr "Fehler beim Herunterladen oder Verifizieren der AppImage: "
+
+#: manager.py:936
+msgid "Error accessing Gitea repository: "
+msgstr "Fehler beim Zugreifen auf das Gitea-Repository: "
+
+#: manager.py:937
+msgid "Error: "
+msgstr "Fehler: "
+
+#: manager.py:938
+msgid "The AppImage renamed..."
+msgstr "Die AppImage umbenannt..."
+
+#: manager.py:939
+msgid "Error renaming the AppImage: "
+msgstr "Fehler beim Umbenennen der AppImage: "
+
+#: manager.py:940
+msgid "Error making the AppImage executable: "
+msgstr "Fehler beim Markieren der AppImage als ausführbar: "
+
+#: manager.py:941
+msgid "The AppImage has been made executable"
+msgstr "Die AppImage wurde als ausführbar markiert"
+
+#: manager.py:942
+msgid "Error: The AppImage file does not exist."
+msgstr "Fehler: Die AppImage-Datei existiert nicht."
+
+#: manager.py:947
+msgid ""
+"Warning: 'gpg' is not installed. Please install it to verify the AppImage "
+"signature."
+msgstr ""
+"Warnung: 'gpg' ist nicht installiert. Bitte installieren Sie es, um die "
+"AppImage-Signatur zu überprüfen."
+
+#: manager.py:949
+msgid "URL not reachable: "
+msgstr "URL nicht erreichbar: "
+
+#: manager.py:951
+msgid "No fingerprint found in the key. File might be corrupted or empty."
+msgstr "Kein Fingerabdruck in dem Schlüssel gefunden. Datei könnte beschädigt oder leer sein."
+
+#: manager.py:953
+msgid "Fingerprint mismatch: Expected "
+msgstr "Fingerabdruck nicht übereinstimmend: Erwartet "
+
+#: manager.py:954
+msgid "but got: "
+msgstr "aber erhalten: "
+
+#: manager.py:955
+msgid "Failed to import public key: "
+msgstr "Fehler beim Importieren des öffentlichen Schlüssels: "
+
+#: manager.py:956
+msgid "GPG fingerprint extraction failed: "
+msgstr "Extrahierung von GPG-Fingerabdruck fehlgeschlagen: "
+
+#: manager.py:957
+msgid "Error importing GPG key from "
+msgstr "Fehler beim Importieren des GPG-Schlüssels aus "
+
+#: manager.py:958
+msgid "Error updating trust level: "
+msgstr "Fehler beim Aktualisieren des Vertrauensniveaus: "
+
+#: manager.py:959
+msgid "Error executing script to update trust level: "
+msgstr "Fehler beim Ausführen des Skripts zur Aktualisierung des Vertrauensniveaus: "
+
+#: manager.py:961
+msgid "OpenPGP keyserver is reachable. Proceeding with download."
+msgstr "Der OpenPGP-Schlüsselserver ist erreichbar. Herunterladen wird fortgesetzt."
+
+#: manager.py:964
+msgid "OpenPGP keyserver unreachable. Skipping this source."
+msgstr "Der OpenPGP-Schlüsselserver ist nicht erreichbar. Dieser Quelle wird übersprungen."
+
+#: manager.py:967
+msgid "All keys have valid fingerprints matching the expected value."
+msgstr "Alle Schlüssel haben gültige Fingerabdrücke, die mit dem erwarteten Wert übereinstimmen."
+
+#: manager.py:969
+msgid "Trust level 5 successfully applied to key "
+msgstr "Vertrauensniveau 5 erfolgreich auf Schlüssel angewendet "
+
+#: manager.py:970
+msgid "Not all keys are valid."
+msgstr "Nicht alle Schlüssel sind gültig."
+

manager.py

@@ -11,7 +11,28 @@ import sys
 import shutil
 import subprocess
 import stat
-from network import GiteaUpdate
+from network import GiteaUpdater
+
+
+class Locale:
+    APP_NAME = "lxtoolsinstaller"
+    # Locale settings
+    LOCALE_DIR = "./locale/"
+
+    @staticmethod
+    def setup_translations() -> gettext.gettext:
+        """Initialize translations and set the translation function"""
+        try:
+            locale.bindtextdomain(Locale.APP_NAME, Locale.LOCALE_DIR)
+            gettext.bindtextdomain(Locale.APP_NAME, Locale.LOCALE_DIR)
+            gettext.textdomain(Locale.APP_NAME)
+        except:
+            pass
+        return gettext.gettext
+
+
+# Initialize translations
+_ = Locale.setup_translations()
 
 
 class Detector:
@@ -107,14 +128,16 @@ class Detector:
         arch = ["Arch Linux", "Manjaro", "EndeavourOS", "ArcoLinux", "Garuda Linux"]
         if os_system in deb:
             result = subprocess.run(
-                ["apt", "list", "--installed", "|", "grep", "polkit"],
+                ["apt list --installed | grep polkit"],
                 capture_output=True,
+                shell=True,
                 text=True,
                 check=False,
             )
             if result.returncode == 0:
                 return True
             else:
+                print(f"STDERR: {result.stderr}")
                 return False
 
         elif os_system in arch:
@@ -127,30 +150,35 @@ class Detector:
             if result.returncode == 0:
                 return True
             else:
+                print(f"STDERR: {result.stderr}")
                 return False
 
         elif os_system == "Fedora":
             result = subprocess.run(
-                ["dnf", "list", "--installed", "|", "grep", "polkit"],
+                ["systemctl --type=service | grep polkit"],
                 capture_output=True,
+                shell=True,
                 text=True,
                 check=False,
             )
             if result.returncode == 0:
                 return True
             else:
+                print(f"STDERR: {result.stderr}")
                 return False
 
         elif os_system == "SUSE Tumbleweed" or os_system == "SUSE Leap":
             result = subprocess.run(
-                ["zypper", "search", "--installed-only", "|", "grep", "polkit"],
+                ["zypper search --installed-only | grep pkexec"],
                 capture_output=True,
+                shell=True,
                 text=True,
                 check=False,
             )
             if result.returncode == 0:
                 return True
             else:
+                print(f"STDERR: {result.stderr}")
                 return False
 
     @staticmethod
@@ -161,14 +189,17 @@ class Detector:
         arch = ["Arch Linux", "Manjaro", "EndeavourOS", "ArcoLinux", "Garuda Linux"]
         if os_system in deb:
             result = subprocess.run(
-                ["apt", "list", "--installed", "|", "grep", "network-manager"],
+                ["apt list --installed | grep network-manager"],
                 capture_output=True,
+                shell=True,
                 text=True,
                 check=False,
             )
+
             if result.returncode == 0:
                 return True
             else:
+                print(f"STDERR: {result.stderr}")
                 return False
 
         elif os_system in arch:
@@ -178,33 +209,40 @@ class Detector:
                 text=True,
                 check=False,
             )
+
             if result.returncode == 0:
                 return True
             else:
+                print(f"STDERR: {result.stderr}")
                 return False
 
         elif os_system == "Fedora":
+
             result = subprocess.run(
-                ["dnf", "list", "--installed", "|", "grep", "NetworkManager"],
+                ["which NetworkManager"],
                 capture_output=True,
+                shell=True,
                 text=True,
-                check=False,
+                check=True,
             )
             if result.returncode == 0:
                 return True
             else:
+                print(f"STDERR: {result.stderr}")
                 return False
 
         elif os_system == "SUSE Tumbleweed" or os_system == "SUSE Leap":
             result = subprocess.run(
-                ["zypper", "search", "--installed-only", "|", "grep", "networkmanager"],
+                ["zypper search --installed-only | grep NetworkManager"],
                 capture_output=True,
+                shell=True,
                 text=True,
-                check=False,
+                check=True,
             )
             if result.returncode == 0:
                 return True
             else:
+                print(f"STDERR: {result.stderr}")
                 return False
 
 
@@ -322,6 +360,10 @@ class Image:
                 "./lx-icons/48/log.png",
                 "/usr/share/icons/lx-icons/48/log.png",
             ],
+            "header_image": [
+                "./lx-icons/32/lxtools_key.png",
+                "/usr/share/icons/lx-icons/32/lxtools_key.png",
+            ],
         }
 
         # Get paths to try
@@ -430,7 +472,7 @@ class AppManager:
         if not project_info:
             return "Unknown"
 
-        return GiteaUpdate.api_down(project_info["api_url"])
+        return GiteaUpdater.get_latest_version_from_api(project_info["api_url"])
 
     def check_other_apps_installed(self, exclude_key) -> bool:
         """Check if other apps are still installed"""
@@ -658,24 +700,8 @@ class LXToolsAppConfig:
                 os.path.dirname(os.path.abspath(__file__)), "certs", "cacert.pem"
             )
 
-    @staticmethod
+    VERSION = "1.1.8"
-    def setup_translations() -> gettext.gettext:
+    WINDOW_WIDTH = 460
-        """Initialize translations and set the translation function"""
-        try:
-            locale.bindtextdomain(
-                LXToolsAppConfig.APP_NAME, LXToolsAppConfig.LOCALE_DIR
-            )
-            gettext.bindtextdomain(
-                LXToolsAppConfig.APP_NAME, LXToolsAppConfig.LOCALE_DIR
-            )
-            gettext.textdomain(LXToolsAppConfig.APP_NAME)
-        except:
-            pass
-        return gettext.gettext
-
-    VERSION = "1.1.7"
-    APP_NAME = "lxtoolsinstaller"
-    WINDOW_WIDTH = 450
     WINDOW_HEIGHT = 580
     # Working directory
     WORK_DIR = os.getcwd()
@@ -683,9 +709,6 @@ class LXToolsAppConfig:
     THEMES_DIR = os.path.join(WORK_DIR, "TK-Themes")
     TEMP_DIR = "/tmp/lxtools"
 
-    # Locale settings
-    LOCALE_DIR = "./locale/"
-
     # Download URLs
     WIREPY_URL = "https://git.ilunix.de/punix/Wire-Py/archive/main.zip"
     SHARED_LIBS_URL = "https://git.ilunix.de/punix/shared_libs/archive/main.zip"
@@ -696,11 +719,20 @@ class LXToolsAppConfig:
         "https://git.ilunix.de/api/v1/repos/punix/shared_libs/releases"
     )
 
+    # GPG required
+    EXPECTED_FINGERPRINT = "743745087C6414E00F1EF84D4CCF06B6CE2A4C7F"
+    KEY_URL_OPENPGP = (
+        f"https://keys.openpgp.org/vks/v1/by-fingerprint/{EXPECTED_FINGERPRINT}"
+    )
+    KEY_URL_GITILUNIX = (
+        "https://git.ilunix.de/punix/lxtools_installer/raw/branch/main/public_key.asc"
+    )
+
     # Project configurations
     PROJECTS = {
         "wirepy": {
             "name": "Wire-Py",
-            "description": "WireGuard VPN Manager with GUI",
+            "description": _("WireGuard VPN Manager with GUI"),
             "download_url": WIREPY_URL,
             "api_url": WIREPY_API_URL,
             "icon_key": "icon_vpn",
@@ -713,7 +745,7 @@ class LXToolsAppConfig:
         },
         "logviewer": {
             "name": "LogViewer",
-            "description": "System Log Viewer with GUI",
+            "description": _("System Log Viewer with GUI"),
             "download_url": SHARED_LIBS_URL,
             "api_url": SHARED_LIBS_API_URL,
             "icon_key": "icon_log",
@@ -772,8 +804,6 @@ class LXToolsAppConfig:
 
 
 LXToolsAppConfig.extract_data_files()
-# Initialize translations
-_ = LXToolsAppConfig.setup_translations()
 
 
 class LocaleStrings:
@@ -817,14 +847,16 @@ class LocaleStrings:
         "python_check": _("Python not installed"),
         "polkit_check": _("Please install Polkit!"),
         "networkmanager_check": _("Please install Networkmanager!"),
+        "polkit_check_log": _("Polkit check: "),
+        "networkmanager_check_log": _("Networkmanager check: "),
     }
 
     # MSGC = Strings on Cards
     MSGC = {
         "checking": _("Checking..."),
         "version_check": _("Version: Checking..."),
-        "latest": _("Latest: "),
+        "update_on": _("Update on "),
-        "update_available": _("Update available "),
+        "available_lower": _("available"),
         "up_to_date": _("Up to date"),
         "latest_unknown": _("Latest unknown"),
         "could_not_check": _("Could not check latest version"),
@@ -873,7 +905,7 @@ class LocaleStrings:
 
     # MSGP = Others print strings
     MSGP = {
-        "tk_install": _("Installing tkinter for )"),
+        "tk_install": _("Installing tkinter for "),
         "command_string": _("Command: "),
         "tk_success": _("TKinter installation completed successfully!"),
         "tk_failed": _("TKinter installation failed: "),
@@ -888,3 +920,52 @@ class LocaleStrings:
         "final_result": _("  Final result: "),
         "get_version_error": _("Error getting version for "),
     }
+
+    # MSGG = String on AppImageMessagDialogs and Strings
+    MSGA = {
+        "gitea_gpg_error": _("Error verifying signature: "),
+        "not_gpg_found": _("Could not find GPG signature: "),
+        "SHA256_File_not_found": _("SHA256-File not found: "),
+        "SHA256_File_not_found1": _("Would you like to continue?"),
+        "SHA256_hash mismatch": _("SHA256 hash mismatch. File might be corrupted!"),
+        "Failed_retrieving": _("Failed to retrieve version from Gitea API"),
+        "Error_retrieving": _("Error retrieving latest version: "),
+        "gpg_verify_success": _("GPG verification successful. Signature is valid."),
+        "error_gpg_check": _("Error GPG check: "),
+        "error_gpg_download": _("Error downloading or verifying AppImage: "),
+        "error_repo": _("Error accessing Gitea repository: "),
+        "error": _("Error: "),
+        "appimage_renamed": _("The AppImage renamed..."),
+        "appimage_rename_error": _("Error renaming the AppImage: "),
+        "appimage_executable_error": _("Error making the AppImage executable: "),
+        "appimage_executable_success": _("The AppImage has been made executable"),
+        "appimage_not_exist": _("Error: The AppImage file does not exist."),
+    }
+
+    MSGGPG = {
+        "gpg_missing": _(
+            "Warning: 'gpg' is not installed. Please install it to verify the AppImage signature."
+        ),
+        "url_not_reachable": _("URL not reachable: "),
+        "corrupted_file": _(
+            "No fingerprint found in the key. File might be corrupted or empty."
+        ),
+        "mismatch": _("Fingerprint mismatch: Expected "),
+        "but_got": _("but got: "),
+        "failed_import": _("Failed to import public key: "),
+        "fingerprint_extract": _("GPG fingerprint extraction failed: "),
+        "error_import_key": _("Error importing GPG key from "),
+        "error_updating_trust_level": _("Error updating trust level: "),
+        "error_executing_script": _("Error executing script to update trust level: "),
+        "keyserver_reachable": _(
+            "OpenPGP keyserver is reachable. Proceeding with download."
+        ),
+        "keyserver_unreachable": _(
+            "OpenPGP keyserver unreachable. Skipping this source."
+        ),
+        "all_keys_valid": _(
+            "All keys have valid fingerprints matching the expected value."
+        ),
+        "set_trust_level": _("Trust level 5 successfully applied to key "),
+        "not_all_keys_are_valid": _("Not all keys are valid."),
+    }

network.py

@@ -1,28 +1,428 @@
 import socket
+import os
 import urllib.request
 import json
+import hashlib
+import subprocess
+from typing import Union, List
+import re
+import tempfile
 
 
-class GiteaUpdate:
+class GPGManager:
+
     @staticmethod
-    def api_down(url, current_version=""):
+    def get_gpg() -> bool:
-        """Get latest version from Gitea API"""
+        """
+        Check if gpg is installed.
+
+        Returns:
+            bool: True if `gpg` is installed, False otherwise.
+        """
+        result = subprocess.run(
+            ["which gpg || command -v gpg"],
+            capture_output=True,
+            shell=True,
+            text=True,
+            check=False,
+        )
+        if result.returncode == 0:
+            return True
+        else:
+            return False
+
+    @staticmethod
+    def is_key_already_imported(key_id: str) -> bool:
+        """
+        Prüft, ob der Schlüssel bereits im Keyring importiert ist.
+
+        Args:
+            key_id (str): ID des öffentlichen Schlüssels (z. B. '7D8A6E1F9B4C3A5D...')
+
+        Returns:
+            bool: True, wenn der Schlüssel vorhanden ist.
+        """
+        from message import MessageDialog
+        from manager import LocaleStrings
+
+        # Check if `gpg` is installed
+        if not GPGManager.get_gpg():
+
+            MessageDialog("warning", LocaleStrings.MSGGPG["gpg_missing"]).show()
+            return False
+
+        try:
+            result = subprocess.run(
+                ["gpg", "--list-keys", key_id],
+                capture_output=True,
+                text=True,
+                check=True,
+            )
+            if key_id in result.stdout:
+                return True
+            else:
+                return False
+        except Exception as e:
+            if e.returncode == 2:
+                return False
+            else:
+                MessageDialog(
+                    "error", f"{LocaleStrings.MSGA['error_gpg_check']}{e}"
+                ).show()
+                return False
+
+    @staticmethod
+    def is_url_reachable(url: str, timeout: int = 5) -> bool:
+        """
+        Checks if a given URL is reachable.
+
+        Args:
+            url (str): The URL to check.
+            timeout (int): Timeout in seconds for the connection attempt.
+
+        Returns:
+            bool: True if the URL is reachable, False otherwise.
+        """
+        try:
+            urllib.request.urlopen(url, timeout=timeout)
+            return True
+        except Exception as e:
+            from message import MessageDialog
+            from manager import LocaleStrings
+
+            MessageDialog(
+                "error",
+                f"{LocaleStrings.MSGGPG['url_not_reachable']}{url} - {LocaleStrings.MSGA['error']}{e}",
+            )
+            return False
+
+    @staticmethod
+    def import_key_from_url(
+        key_url: str, expected_fingerprint: str, filename: str
+    ) -> bool:
+        """
+        Downloads a GPG public key from the given URL, verifies its fingerprint matches
+        the expected value, and imports it into the local GPG keyring.
+
+        Args:
+            key_url (str): URL to the `.asc` public key file.
+            expected_fingerprint (str): Expected 40-character hexadecimal fingerprint of the key.
+            filename (str): Destination filename for saving the downloaded key in `PUBLIC_KEYS_DIR`.
+
+        Returns:
+            bool: True if the key was downloaded, verified, and successfully imported. False otherwise.
+        """
+        from message import MessageDialog
+        from manager import LocaleStrings
+
+        # Configuration: Define the directory for storing public key files
+        PUBLIC_KEYS_DIR = "/tmp/public_keys"
+        if not os.path.exists(PUBLIC_KEYS_DIR):
+            os.makedirs(PUBLIC_KEYS_DIR)
+
+        try:
+            # Construct full path to save the key file
+            key_path = os.path.join(PUBLIC_KEYS_DIR, filename)
+            print(f"Downloading public key from {key_url} to {key_path}")
+            urllib.request.urlretrieve(key_url, key_path)
+
+            result = subprocess.run(
+                ["gpg", "-fingerprint", key_path],
+                capture_output=True,
+                text=True,
+                check=True,
+            )
+
+            if result.returncode == 0:
+                # Extract all fingerprints from GPG output (40-character hexadecimal)
+                fingerprints_from_key: List[str] = []
+                for line in result.stdout.splitlines():
+                    matches = re.findall(r"\b[0-9A-Fa-f]{40}\b", line)
+                    fingerprints_from_key.extend(matches)
+
+                if not fingerprints_from_key:
+                    MessageDialog(
+                        "warning", LocaleStrings.MSGGPG["corrupted_file"]
+                    ).show()
+                    return False
+
+                # Check if any of the extracted fingerprints match the expected one
+                found = any(fp == expected_fingerprint for fp in fingerprints_from_key)
+                if not found:
+                    MessageDialog(
+                        "warning",
+                        f"{LocaleStrings.MSGGPG['mismatch']}\n{expected_fingerprint}\n{LocaleStrings.MSGGPG['but_got']}\n{fingerprints_from_key}",
+                        wraplength=450,
+                    ).show()
+
+                    return False
+
+                else:
+                    # Import key into GPG keyring
+                    result_import = subprocess.run(
+                        ["gpg", "--import", key_path],
+                        capture_output=True,
+                        text=True,
+                        check=True,
+                    )
+                    if result_import.returncode == 0:
+                        print(f"Public key from {key_url} successfully imported.")
+                        return True
+                    else:
+                        MessageDialog(
+                            "error",
+                            f"{LocaleStrings.MSGGPG['failed_import']}{result_import.stderr}",
+                        ).show()
+                        return False
+
+            else:
+                MessageDialog(
+                    "error",
+                    f"{LocaleStrings.MSGGPG['fingerprint_extract']}{result.stderr}",
+                )
+                return False
+
+        except Exception as e:
+            MessageDialog(
+                "error", f"{LocaleStrings.MSGGPG['error_import_key']}{key_url}: {e}"
+            )
+            return False
+
+    @staticmethod
+    def update_gpg_trust_level(key_id: str, trust_level: int = 5) -> bool:
+        """
+        Sets the trust level for a specified GPG public key.
+
+        Args:
+            key_id (str): The hexadecimal ID of the key to update.
+            trust_level (int): Trust level (1-5). Default is 5 (fully trusted).
+
+        Returns:
+            bool: True if the trust level was successfully updated, False otherwise.
+        """
+        script = f"""#!/bin/bash
+    # Set required environment variables
+    export GPG_TTY=$(tty)
+    export GNUPG_STATUS="1"
+    export GNUPGAGENT_INFO_FILE="/dev/null"
+    gpg --batch \
+        --no-tty \
+        --command-fd 0 \
+        --edit-key {key_id} << EOF
+    trust
+    {trust_level}
+    quit
+    EOF
+    """
+
+        try:
+
+            from message import MessageDialog
+            from manager import LocaleStrings
+
+            # Create temporary script file
+            temp_script = tempfile.NamedTemporaryFile(
+                mode="w", suffix=".sh", delete=False, encoding="utf-8"
+            )
+            temp_script.write(script)
+            temp_script.close()
+
+            print(f"Setting trust level {trust_level} for key {key_id}")
+            result = subprocess.run(
+                ["bash", temp_script.name], capture_output=True, text=True, check=True
+            )
+
+            if result.returncode != 0:
+
+                MessageDialog(
+                    "error",
+                    f"{LocaleStrings.MSGGPG['error_updating_trust_level']}{result.stderr}",
+                ).show()
+
+        except (subprocess.CalledProcessError, FileNotFoundError) as e:
+            MessageDialog(
+                "error", f"{LocaleStrings.MSGGPG['error_executing_script']}{e}"
+            ).show()
+            return False
+
+        finally:
+            try:
+                os.unlink(temp_script.name)
+            except OSError:
+                pass
+
+        return True
+
+
+class GiteaUpdater:
+    @staticmethod
+    def get_latest_version_from_api(url: str, current_version: str = "") -> str:
+        """
+        Fetches the latest version of a project from the Gitea API.
+
+        Args:
+            url (str): The URL to query the Gitea API for releases.
+            current_version (str, optional): Not used in this implementation. Defaults to "".
+
+        Returns:
+            str: Latest version tag name without the 'v' prefix.
+                 If an error occurs, returns "Unknown".
+        """
         try:
             with urllib.request.urlopen(url, timeout=10) as response:
                 data = json.loads(response.read().decode())
                 if data and len(data) > 0:
                     latest_version = data[0].get("tag_name", "Unknown")
-                    return latest_version.lstrip("v")  # Remove 'v' prefix if present
+                    return latest_version.lstrip("v")  # Remove 'v' prefix
                 return "Unknown"
         except Exception as e:
             print(f"API Error: {e}")
             return "Unknown"
 
+    @staticmethod
+    def download_appimage(
+        version: str = "latest",
+        verify_checksum: bool = False,
+        verify_signature: bool = False,
+    ) -> Union[str, None]:
+        """
+        Downloads the AppImage file to /tmp/portinstaller and performs verification checks.
+
+        Args:
+            version (str): 'latest' for the latest version or a specific version.
+            verify_checksum (bool): Whether to perform SHA256 checksum verification.
+            verify_signature (bool): Whether to validate GPG signature.
+
+        Returns:
+            str: Full path to the AppImage if all checks pass. Otherwise, returns an error message.
+            None: If an exception occurs during download or verification.
+        """
+        base_url = "https://git.ilunix.de/punix/lxtools_installer/releases/download/"
+
+        from message import MessageDialog
+        from manager import LocaleStrings
+
+        # Get latest version from API if not provided
+        if version == "latest":
+            try:
+
+                with urllib.request.urlopen(
+                    "https://git.ilunix.de/api/v1/repos/punix/lxtools_installer/releases?limit=1",
+                    timeout=10,
+                ) as response:
+                    data = json.loads(response.read().decode())
+                    latest_version = data[0].get("tag_name")
+                    if not latest_version:
+                        print(LocaleStrings.MSGA["Failed_retrieving"])
+                        return None
+            except Exception as e:
+                print(f"{LocaleStrings.MSGA['Error_retrieving']}{e}")
+                return None
+
+        else:
+            latest_version = version
+
+        # Create /tmp/portinstaller directory if it doesn't exist
+        download_dir = "/tmp/portinstaller"
+        os.makedirs(download_dir, exist_ok=True)
+
+        filename = f"{download_dir}/lxtools_installer{latest_version}-x86_64.AppImage"
+        appimage_url = f"{base_url}{latest_version}/{filename.split('/')[-1]}"
+        checksum_url = f"{base_url}{latest_version}/{filename.split('/')[-1]}.sha256"
+        signature_url = f"{base_url}{latest_version}/{filename.split('/')[-1]}.asc"
+
+        try:
+            print("Downloading AppImage Updater...")
+            urllib.request.urlretrieve(appimage_url, filename)
+
+            # SHA256 checksum verification
+            result = None
+            if verify_checksum:
+                try:
+                    with urllib.request.urlopen(checksum_url, timeout=10) as response:
+                        checksum_content = response.read().decode()
+                        expected_hash, _ = checksum_content.strip().split("  ")
+                except Exception as e:
+
+                    result = MessageDialog(
+                        "ask",
+                        f"{LocaleStrings.MSGA['SHA256_File_not_found']}{e} {LocaleStrings.MSGA['SHA256_File_not_found1']}",
+                        buttons=["Yes", "No"],
+                    ).show()
+
+                    if not result:
+                        return "Checksum file not found"
+
+                if result:
+                    pass
+                else:
+                    with open(filename, "rb") as f:
+                        file_hash = hashlib.sha256(f.read()).hexdigest()
+
+                    if expected_hash != file_hash:
+
+                        MessageDialog(
+                            "warning", LocaleStrings.MSGA["SHA256 hash mismatch"]
+                        ).show()
+                        return "Checksum mismatch"
+
+            # GPG signature verification
+            if verify_signature:
+                signature_path = f"{download_dir}/{filename.split('/')[-1]}.asc"
+                try:
+                    urllib.request.urlretrieve(signature_url, signature_path)
+                except Exception as e:
+
+                    MessageDialog(
+                        "error", f"{LocaleStrings.MSGA['not_gpg_found']}{e}"
+                    ).show()
+                    return "Signature file not found"
+
+                try:
+                    result = subprocess.run(
+                        ["gpg", "--verify", signature_path, filename],
+                        capture_output=True,
+                        text=True,
+                        check=True,
+                    )
+                    if result.returncode == 0:
+                        print(LocaleStrings.MSGA["gpg_verify_success"])
+                except Exception as e:
+                    from message import MessageDialog
+
+                    MessageDialog(
+                        "error", f"{LocaleStrings.MSGA['error_gpg_check']}{e.stderr}"
+                    ).show()
+                    return "Signature verification failed"
+
+            # Return the full path to the AppImage
+            return filename
+
+        except Exception as e:
+            from message import MessageDialog
+
+            MessageDialog(
+                "error", f"{LocaleStrings.MSGA['error_gpg_download']}{e}"
+            ).show()
+            return None
+
 
 class NetworkChecker:
     @staticmethod
-    def check_internet_connection(host="8.8.8.8", port=53, timeout=3):
+    def check_internet_connection(
-        """Check if internet connection is available"""
+        host: str = "8.8.8.8", port: int = 53, timeout: float = 3
+    ) -> bool:
+        """
+        Checks if an internet connection is available.
+
+        Args:
+            host (str): Host to connect to for testing. Defaults to "8.8.8.8" (Google DNS).
+            port (int): Port number to use for the test. Defaults to 53.
+            timeout (float): Timeout in seconds for the connection attempt. Defaults to 3.
+
+        Returns:
+            bool: True if internet is available, False otherwise.
+        """
         try:
             socket.setdefaulttimeout(timeout)
             socket.socket(socket.AF_INET, socket.SOCK_STREAM).connect((host, port))
@@ -31,10 +431,22 @@ class NetworkChecker:
             return False
 
     @staticmethod
-    def check_repository_access(url="https://git.ilunix.de", timeout=5):
+    def check_repository_access(
-        """Check if repository is accessible"""
+        url: str = "https://git.ilunix.de", timeout: float = 5
+    ) -> bool:
+        """
+        Checks if the Gitea repository is accessible.
+
+        Args:
+            url (str): The URL of the Gitea repository. Defaults to "https://git.ilunix.de".
+            timeout (float): Timeout in seconds for the connection attempt. Defaults to 5.
+
+        Returns:
+            bool: True if the repository is accessible, False otherwise.
+        """
         try:
             urllib.request.urlopen(url, timeout=timeout)
             return True
-        except:
+        except Exception as e:
+            print(f"Error accessing Gitea repository: {e}")
             return False

public_key.asc

@@ -0,0 +1,64 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+
+mQINBGhnC2QBEADiDYNLO6dmZFAeaVzFF8TcEI9EE/9Nf9R2aSapv0+GUOIyVnkS
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