aloha

Ryujinx/VirtualFs.cs

@@ -0,0 +1,65 @@
+using System;
+using System.IO;
+
+namespace Ryujinx
+{
+    class VirtualFs : IDisposable
+    {
+        private const string BasePath  = "Fs";
+        private const string SavesPath = "Saves";
+
+        public Stream RomFs { get; private set; }
+
+        public void LoadRomFs(string FileName)
+        {
+            RomFs = new FileStream(FileName, FileMode.Open, FileAccess.Read);
+        }
+
+        internal string GetFullPath(string BasePath, string FileName)
+        {
+            if (FileName.StartsWith('/'))
+            {
+                FileName = FileName.Substring(1);
+            }
+
+            string FullPath = Path.GetFullPath(Path.Combine(BasePath, FileName));
+
+            if (!FullPath.StartsWith(GetBasePath()))
+            {
+                return null;
+            }
+
+            return FullPath;
+        }
+
+        internal string GetGameSavesPath()
+        {
+            string SavesDir = Path.Combine(GetBasePath(), SavesPath);
+
+            if (!Directory.Exists(SavesDir))
+            {
+                Directory.CreateDirectory(SavesDir);
+            }
+
+            return SavesDir;
+        }
+
+        internal string GetBasePath()
+        {
+            return Path.Combine(Directory.GetCurrentDirectory(), BasePath);
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposing && RomFs != null)
+            {
+                RomFs.Dispose();
+            }
+        }
+    }
+}