add network game log reader ex: net.tcp://ip:port

Application/IO/NetworkGameLogReader.cs

@@ -0,0 +1,96 @@
+using SharedLibraryCore;
+using SharedLibraryCore.Interfaces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Net.Sockets;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+using ILogger = Microsoft.Extensions.Logging.ILogger;
+
+namespace IW4MAdmin.Application.IO
+{
+    /// <summary>
+    /// provides capability of reading log files over HTTP
+    /// </summary>
+    class NetworkGameLogReader : IGameLogReader
+    {
+        private readonly IEventParser _eventParser;
+        private readonly UdpClient _udpClient;
+        private readonly ILogger _logger;
+
+        public NetworkGameLogReader(Uri[] uris, IEventParser parser, ILogger<NetworkGameLogReader> logger)
+        {
+            _eventParser = parser;
+            try
+            {
+                var endPoint = new IPEndPoint(Dns.GetHostAddresses(uris[0].Host).First(), uris[0].Port);
+                _udpClient = new UdpClient(endPoint);
+            }
+            catch (Exception ex)
+            {
+                logger.LogError(ex, "Could setup {LogReader}", nameof(NetworkGameLogReader));
+            }
+
+            _logger = logger;
+        }
+
+        public long Length => -1;
+
+        public int UpdateInterval => 500;
+
+        public async Task<IEnumerable<GameEvent>> ReadEventsFromLog(long fileSizeDiff, long startPosition)
+        {
+            if (_udpClient == null)
+            {
+                return Enumerable.Empty<GameEvent>();
+            }
+
+            byte[] buffer;
+            try
+            {
+                buffer = (await _udpClient.ReceiveAsync()).Buffer;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Could receive lines for {LogReader}", nameof(NetworkGameLogReader));
+                return Enumerable.Empty<GameEvent>();
+            }
+
+            if (!buffer.Any())
+            {
+                return Enumerable.Empty<GameEvent>();
+            }
+
+            var logData = Utilities.EncodingType.GetString(buffer);
+
+            if (string.IsNullOrWhiteSpace(logData))
+            {
+                return Enumerable.Empty<GameEvent>();
+            }
+
+            var lines = logData
+                .Split('\n')
+                .Where(line => line.Length > 0);
+
+            var events = new List<GameEvent>();
+            foreach (var eventLine in lines)
+            {
+                try
+                {
+                    // this trim end should hopefully fix the nasty runaway regex
+                    var gameEvent = _eventParser.GenerateGameEvent(eventLine.TrimEnd('\r'));
+                    events.Add(gameEvent);
+                }
+
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Could not properly parse event line from http {eventLine}", eventLine);
+                }
+            }
+
+            return events;
+        }
+    }
+}