Restore SEBPatch

2025-06-01 11:44:20 +02:00
commit 8c656e3137
1297 changed files with 142172 additions and 0 deletions
--- a/SafeExamBrowser.UserInterface.Desktop/ViewModels/LogViewModel.cs
+++ b/SafeExamBrowser.UserInterface.Desktop/ViewModels/LogViewModel.cs
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2024 ETH Zürich, IT Services
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using System;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Media;
+using SafeExamBrowser.I18n.Contracts;
+using SafeExamBrowser.Logging.Contracts;
+using SafeExamBrowser.Settings.Logging;
+
+namespace SafeExamBrowser.UserInterface.Desktop.ViewModels
+{
+	internal class LogViewModel : ILogObserver
+	{
+		private IText text;
+		private ScrollViewer scrollViewer;
+		private TextBlock textBlock;
+
+		public bool AutoScroll { get; set; } = true;
+		public string AutoScrollTitle => text.Get(TextKey.LogWindow_AutoScroll);
+		public string TopmostTitle => text.Get(TextKey.LogWindow_AlwaysOnTop);
+		public string WindowTitle => text.Get(TextKey.LogWindow_Title);
+
+		public LogViewModel(IText text, ScrollViewer scrollViewer, TextBlock textBlock)
+		{
+			this.text = text;
+			this.scrollViewer = scrollViewer;
+			this.textBlock = textBlock;
+		}
+
+		public void Notify(ILogContent content)
+		{
+			switch (content)
+			{
+				case ILogText text:
+					AppendLogText(text);
+					break;
+				case ILogMessage message:
+					AppendLogMessage(message);
+					break;
+				default:
+					throw new NotImplementedException($"The log window is not yet implemented for log content of type {content.GetType()}!");
+			}
+		}
+
+		private void AppendLogText(ILogText logText)
+		{
+			textBlock.Dispatcher.InvokeAsync(() =>
+			{
+				var isHeader = logText.Text.StartsWith("/* ");
+				var isComment = logText.Text.StartsWith("# ");
+				var brush = isHeader || isComment ? Brushes.LimeGreen : textBlock.Foreground;
+				var fontWeight = isHeader ? FontWeights.Bold : FontWeights.Normal;
+
+				textBlock.Inlines.Add(new Run($"{logText.Text}{Environment.NewLine}") { FontWeight = fontWeight, Foreground = brush });
+				ScrollToEnd();
+			});
+		}
+
+		private void AppendLogMessage(ILogMessage message)
+		{
+			textBlock.Dispatcher.InvokeAsync(() =>
+			{
+				var date = message.DateTime.ToString("HH:mm:ss.fff");
+				var severity = message.Severity.ToString().ToUpper();
+				var threadId = message.ThreadInfo.Id < 10 ? $"0{message.ThreadInfo.Id}" : message.ThreadInfo.Id.ToString();
+				var threadName = message.ThreadInfo.HasName ? ": " + message.ThreadInfo.Name : string.Empty;
+				var threadInfo = $"[{threadId}{threadName}]";
+
+				var infoRun = new Run($"{date} {threadInfo} - ") { Foreground = Brushes.DarkGray };
+				var messageRun = new Run($"{severity}: {message.Message}{Environment.NewLine}") { Foreground = GetBrushFor(message.Severity) };
+
+				textBlock.Inlines.Add(infoRun);
+				textBlock.Inlines.Add(messageRun);
+				ScrollToEnd();
+			});
+		}
+
+		private Brush GetBrushFor(LogLevel severity)
+		{
+			switch (severity)
+			{
+				case LogLevel.Debug:
+					return Brushes.DarkGray;
+				case LogLevel.Error:
+					return Brushes.Red;
+				case LogLevel.Warning:
+					return Brushes.Orange;
+				default:
+					return Brushes.White;
+			}
+		}
+
+		private void ScrollToEnd()
+		{
+			if (AutoScroll)
+			{
+				scrollViewer.ScrollToEnd();
+			}
+		}
+	}
+}