Initial commit: IT Nexus Web-App

2026-06-01 20:49:07 +02:00
commit 8023765e6c
387 changed files with 106900 additions and 0 deletions
--- a/agent-cs/Services/NotificationService.cs
+++ b/agent-cs/Services/NotificationService.cs
@@ -0,0 +1,110 @@
+using ITNexusAgent.Models;
+using Newtonsoft.Json;
+using System.Diagnostics;
+using System.Management;
+using System.Text;
+
+namespace ITNexusAgent.Services;
+
+public class NotificationService
+{
+    private readonly string _exePath;
+    private readonly string _dataDir;
+    private readonly string _shownIdsPath;
+    private readonly HashSet<int> _shownIds;
+
+    public NotificationService(string exePath, string dataDir)
+    {
+        _exePath = exePath;
+        _dataDir = dataDir;
+        _shownIdsPath = Path.Combine(dataDir, "shown_announcements.json");
+        _shownIds = LoadShownIds();
+    }
+
+    private HashSet<int> LoadShownIds()
+    {
+        try
+        {
+            if (File.Exists(_shownIdsPath))
+            {
+                var ids = JsonConvert.DeserializeObject<List<int>>(File.ReadAllText(_shownIdsPath));
+                return ids != null ? new HashSet<int>(ids) : [];
+            }
+        }
+        catch { }
+        return [];
+    }
+
+    private void SaveShownIds()
+    {
+        try { File.WriteAllText(_shownIdsPath, JsonConvert.SerializeObject(_shownIds.ToList())); }
+        catch { }
+    }
+
+    public void ShowAnnouncements(List<Announcement> announcements)
+    {
+        foreach (var ann in announcements)
+        {
+            if (_shownIds.Contains(ann.Id)) continue;
+            _shownIds.Add(ann.Id);
+            SaveShownIds();
+            ShowNotification(ann);
+        }
+    }
+
+    // Vollständigen eingeloggten User aus WMI holen (z.B. "WINKEL\gruessing" oder "AzureAD\gruessing")
+    public static string GetLoggedOnUser()
+    {
+        try
+        {
+            using var searcher = new ManagementObjectSearcher("SELECT UserName FROM Win32_ComputerSystem");
+            foreach (ManagementObject obj in searcher.Get())
+            {
+                var user = obj["UserName"]?.ToString();
+                if (!string.IsNullOrEmpty(user)) return user;
+            }
+        }
+        catch { }
+        return "";
+    }
+
+    private void ShowNotification(Announcement ann)
+    {
+        try
+        {
+            var fullUser = GetLoggedOnUser();
+            if (string.IsNullOrEmpty(fullUser)) return;
+
+            var json = Convert.ToBase64String(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(ann)));
+            var taskName = $"ITNexus-Ann-{ann.Id}";
+
+            // Alten Task entfernen
+            Process.Start(new ProcessStartInfo("schtasks.exe", $"/delete /tn \"{taskName}\" /f")
+            { CreateNoWindow = true })?.WaitForExit();
+
+            // Task mit Trigger weit in der Zukunft erstellen (damit er nicht abläuft vor /run)
+            var triggerTime = DateTime.Now.AddMinutes(60).ToString("HH:mm:ss");
+            var args = $"/create /tn \"{taskName}\" /tr \"\\\"{_exePath}\\\" --notify {json}\" " +
+                       $"/sc ONCE /st {triggerTime} /ru \"{fullUser}\" /it /f";
+            var p = Process.Start(new ProcessStartInfo("schtasks.exe", args)
+            { CreateNoWindow = true, RedirectStandardError = true, UseShellExecute = false });
+            p?.WaitForExit();
+
+            // Sofort ausführen
+            var run = Process.Start(new ProcessStartInfo("schtasks.exe", $"/run /tn \"{taskName}\"")
+            { CreateNoWindow = true });
+            run?.WaitForExit();
+
+            // Task löschen damit der +60min Trigger nicht nochmal feuert
+            Thread.Sleep(3000);
+            Process.Start(new ProcessStartInfo("schtasks.exe", $"/delete /tn \"{taskName}\" /f")
+            { CreateNoWindow = true })?.WaitForExit();
+
+            AgentWorker.Log($"NOTIFY: Task '{taskName}' für User '{fullUser}' gestartet (ExitCode={p?.ExitCode})");
+        }
+        catch (Exception ex)
+        {
+            AgentWorker.Log($"NOTIFY ERROR: {ex.Message}");
+        }
+    }
+}