Photon logging support

ImageCache.cs

@@ -0,0 +1,53 @@
+using System;
+using System.IO;
+using System.Net;
+using System.Linq;
+
+namespace VRCX
+{
+    class ImageCache
+    {
+        private static readonly string cacheLocation = Path.Combine(Program.AppDataDirectory, "ImageCache");
+
+        public static string GetImage(string url, string fileId, string version)
+        {
+            var directoryLocation = Path.Combine(cacheLocation, fileId);
+            var fileLocation = Path.Combine(directoryLocation, $"{version}.png");
+
+            if (File.Exists(fileLocation))
+            {
+                Directory.SetLastWriteTime(directoryLocation, DateTime.Now);
+                return fileLocation;
+            }
+
+            if (Directory.Exists(directoryLocation))
+                Directory.Delete(directoryLocation, true);
+            Directory.CreateDirectory(directoryLocation);
+
+            using (var client = new WebClient())
+            {
+                client.Headers.Add("user-agent", "VRCX");
+                client.DownloadFile(url, fileLocation);
+            }
+
+            int cacheSize = Directory.GetDirectories(cacheLocation).Length;
+            if (cacheSize > 1100)
+                CleanImageCache();
+
+            return fileLocation;
+        }
+
+        private static void CleanImageCache()
+        {
+            DirectoryInfo dirInfo = new DirectoryInfo(cacheLocation);
+            var folders = dirInfo.GetDirectories().OrderBy(p => p.LastWriteTime);
+            int i = 0;
+            foreach (DirectoryInfo folder in folders.Reverse())
+            {
+                i++;
+                if (i > 1000)
+                    folder.Delete(true);
+            }
+        }
+    }
+}