Folder cs files

2026-04-23 00:33:50 +02:00 · 2023-10-11 20:36:41 +13:00
parent 634f465927
commit 6cfadfa67f
53 changed files with 192 additions and 147 deletions
--- a/Dotnet/ImageCache.cs
+++ b/Dotnet/ImageCache.cs
@@ -0,0 +1,65 @@
+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");
+        private static readonly WebClient webClient = new WebClient();
+
+        private const string IMAGE_HOST1 = "api.vrchat.cloud";
+        private const string IMAGE_HOST2 = "files.vrchat.cloud";
+        private const string IMAGE_HOST3 = "d348imysud55la.cloudfront.net";
+
+        public static string GetImage(string url, string fileId, string version)
+        {
+            var directoryLocation = Path.Combine(cacheLocation, fileId);
+            var fileLocation = Path.Combine(directoryLocation, $"{version}.png");
+
+            if (File.Exists(fileLocation))
+            {
+                Directory.SetLastWriteTimeUtc(directoryLocation, DateTime.UtcNow);
+                return fileLocation;
+            }
+
+            if (Directory.Exists(directoryLocation))
+                Directory.Delete(directoryLocation, true);
+            Directory.CreateDirectory(directoryLocation);
+
+            Uri uri = new Uri(url);
+            if (uri.Host != IMAGE_HOST1 && uri.Host != IMAGE_HOST2 && uri.Host != IMAGE_HOST3)
+                throw new ArgumentException("Invalid image host", url);
+            
+            string cookieString = string.Empty;
+            if (WebApi.Instance != null && WebApi.Instance._cookieContainer != null)
+            {
+                CookieCollection cookies = WebApi.Instance._cookieContainer.GetCookies(new Uri($"https://{IMAGE_HOST1}"));
+                foreach (Cookie cookie in cookies)
+                    cookieString += $"{cookie.Name}={cookie.Value};";
+            }
+
+            webClient.Headers.Add(HttpRequestHeader.Cookie, cookieString);
+            webClient.Headers.Add("user-agent", Program.Version);
+            webClient.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().OrderByDescending(p => p.LastWriteTime).Skip(1000);
+            foreach (DirectoryInfo folder in folders)
+            {
+                folder.Delete(true);
+            }
+        }
+    }
+}