Added Storage access framework, DiscUtils More of Zio, Fixed Dispose and internal function UnixPath.SetPath

Tesses.VFS.sln

@@ -15,6 +15,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tesses.VirtualFilesystem.Lo
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tesses.VirtualFilesystem.Zio", "Tesses.VirtualFilesystem.Zio\Tesses.VirtualFilesystem.Zio.csproj", "{F30FD55D-194C-437E-AAD2-6E1E0FEEF1C2}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tesses.VirtualFilesystem.DiscUtils", "Tesses.VirtualFilesystem.DiscUtils\Tesses.VirtualFilesystem.DiscUtils.csproj", "{D399E2F3-B852-443E-8117-4B715EB84953}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tesses.VirtualFilesystem.Saf", "Tesses.VirtualFilesystem.Saf\Tesses.VirtualFilesystem.Saf.csproj", "{61FADB48-263C-494E-A564-A477B0D8C3F3}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -48,5 +52,13 @@ Global
 		{F30FD55D-194C-437E-AAD2-6E1E0FEEF1C2}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{F30FD55D-194C-437E-AAD2-6E1E0FEEF1C2}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{F30FD55D-194C-437E-AAD2-6E1E0FEEF1C2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D399E2F3-B852-443E-8117-4B715EB84953}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D399E2F3-B852-443E-8117-4B715EB84953}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D399E2F3-B852-443E-8117-4B715EB84953}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D399E2F3-B852-443E-8117-4B715EB84953}.Release|Any CPU.Build.0 = Release|Any CPU
+		{61FADB48-263C-494E-A564-A477B0D8C3F3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{61FADB48-263C-494E-A564-A477B0D8C3F3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{61FADB48-263C-494E-A564-A477B0D8C3F3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{61FADB48-263C-494E-A564-A477B0D8C3F3}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal

Tesses.VirtualFilesystem.Base/Class1.cs

@@ -488,7 +488,7 @@ namespace Tesses.VirtualFilesystem
        
     }
     
-    public interface IVirtualWatcher
+    public interface IVirtualWatcher : IDisposable
     {
         
         event EventHandler<VirtualWatcherChangedArgs> Changed;
@@ -527,6 +527,7 @@ namespace Tesses.VirtualFilesystem
         /// in <see cref="Path"/>.
         /// </summary>
         bool IncludeSubdirectories { get; set; }
+
     }
     
     public class VirtualWatcherRenamedEventArgs : VirtualWatcherChangedArgs
@@ -871,7 +872,10 @@ namespace Tesses.VirtualFilesystem
             {
                 pa.Append($"/{_parts[i]}");
             }
+            if(pa.Length > 0)
             _path = pa.ToString();
+            else 
+            _path = "/";
         }
         public UnixPath(UnixPath path1)
         {

Tesses.VirtualFilesystem.Base/Tesses.VirtualFilesystem.Base.csproj

@@ -17,9 +17,9 @@
       <PackageId>Tesses.VirtualFilesystem.Base</PackageId>
     <Author>Mike Nolan</Author>
     <Company>Tesses</Company>
-     <Version>1.0.0</Version>
+     <Version>1.0.1</Version>
-    <AssemblyVersion>1.0.0</AssemblyVersion>
+    <AssemblyVersion>1.0.1</AssemblyVersion>
-    <FileVersion>1.0.0</FileVersion>
+    <FileVersion>1.0.1</FileVersion>
     <Description>Another VirtualFilesystem for .NET</Description>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
      <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>

Tesses.VirtualFilesystem.DiscUtils/Class1.cs

@@ -0,0 +1,103 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using DiscUtils;
+using Tesses.VirtualFilesystem;
+using Tesses.VirtualFilesystem.Filesystems;
+
+namespace Tesses.VirtualFilesystem.Filesystems
+{
+    public class DiscUtilsFilesystem : SyncFileSystem
+    {
+        IFileSystem fs;
+        public DiscUtilsFilesystem(IFileSystem fs)
+        {
+            this.fs = fs;
+        }
+        public override string ConvertPathFromUnixPath(UnixPath path)
+        {
+            return path.Path.Replace("/","\\");
+        }
+        public override UnixPath ConvertPathToUnixPath(string path)
+        {
+            return new UnixPath(path.Replace("\\","/"));
+        }
+        public override void CreateDirectory(UnixPath directory)
+        {
+            fs.CreateDirectory(ConvertPathFromUnixPath(directory));
+        }
+
+        public override void DeleteDirectory(UnixPath path)
+        {
+            fs.DeleteDirectory(ConvertPathFromUnixPath(path));
+        }
+
+        public override void DeleteFile(UnixPath path)
+        {
+            fs.DeleteFile(ConvertPathFromUnixPath(path));
+        }
+
+        public override bool DirectoryExists(UnixPath path)
+        {
+            return fs.DirectoryExists(ConvertPathFromUnixPath(path));
+        }
+
+        public override IEnumerable<UnixPath> EnumerateFileSystemEntries(UnixPath path)
+        {
+            foreach(var item in fs.GetFileSystemEntries(ConvertPathFromUnixPath(path)))
+            {
+                yield return ConvertPathToUnixPath(item);
+            }
+        }
+
+        public override bool FileExists(UnixPath path)
+        {
+            return fs.FileExists(ConvertPathFromUnixPath(path));
+        }
+
+        public override DateTime GetCreationTime(UnixPath path)
+        {
+            return fs.GetCreationTime(ConvertPathFromUnixPath(path));
+        }
+
+        public override DateTime GetLastAccessTime(UnixPath path)
+        {
+            return fs.GetLastAccessTime(ConvertPathFromUnixPath(path));
+        }
+
+        public override DateTime GetLastWriteTime(UnixPath path)
+        {
+            return fs.GetLastWriteTime(ConvertPathFromUnixPath(path));
+        }
+
+        public override void MoveDirectory(UnixPath src, UnixPath dest)
+        {
+            fs.MoveDirectory(ConvertPathFromUnixPath(src),ConvertPathFromUnixPath(dest));
+        }
+
+        public override void MoveFile(UnixPath src, UnixPath dest)
+        {
+            fs.MoveFile(ConvertPathFromUnixPath(src),ConvertPathFromUnixPath(dest));
+        }
+
+        public override Stream Open(UnixPath path, FileMode mode, FileAccess access, FileShare share)
+        {
+            return fs.OpenFile(ConvertPathFromUnixPath(path),mode,access);
+        }
+
+        public override void SetCreationTime(UnixPath path, DateTime time)
+        {
+            fs.SetCreationTime(ConvertPathFromUnixPath(path),time);
+        }
+
+        public override void SetLastAccessTime(UnixPath path, DateTime time)
+        {
+            fs.SetLastAccessTime(ConvertPathFromUnixPath(path),time);
+        }
+
+        public override void SetLastWriteTime(UnixPath path, DateTime time)
+        {
+           fs.SetLastWriteTime(ConvertPathFromUnixPath(path),time);
+        }
+    }
+}

Tesses.VirtualFilesystem.DiscUtils/Tesses.VirtualFilesystem.DiscUtils.csproj

@@ -0,0 +1,36 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <ItemGroup>
+    <ProjectReference Include="..\Tesses.VirtualFilesystem.Extensions\Tesses.VirtualFilesystem.Extensions.csproj" />
+    <ProjectReference Include="..\Tesses.VirtualFilesystem\Tesses.VirtualFilesystem.csproj" />
+    <ProjectReference Include="..\Tesses.VirtualFilesystem.Base\Tesses.VirtualFilesystem.Base.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="DiscUtils" Version="0.16.13" />
+  </ItemGroup>
+
+   <ItemGroup>
+     <None Include="..\README.md" Pack="true" PackagePath="\"/>
+  </ItemGroup>
+
+  <PropertyGroup>
+     <TargetFramework>netstandard2.0</TargetFramework>
+     <IsPackable>true</IsPackable>
+      <PackageId>Tesses.VirtualFilesystem.DiscUtils</PackageId>
+    <Author>Mike Nolan</Author>
+    <Company>Tesses</Company>
+     <Version>1.0.0</Version>
+    <AssemblyVersion>1.0.0</AssemblyVersion>
+    <FileVersion>1.0.0</FileVersion>
+    <Description>Another VirtualFilesystem for .NET</Description>
+    <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
+     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
+    <PackageTags>VFS, Filesystem, VirtualFilesystem</PackageTags>
+    <RepositoryUrl>https://gitlab.tesses.net/tesses50/tesses-vfs</RepositoryUrl>
+    <LangVersion>8.0</LangVersion>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
+  </PropertyGroup>
+
+
+</Project>

Tesses.VirtualFilesystem.Local/Class1.cs

@@ -165,6 +165,11 @@ namespace Tesses.VirtualFilesystem.Filesystems
             public event EventHandler<VirtualWatcherChangedArgs> Deleted;
             public event EventHandler<VirtualWatcherRenamedEventArgs> Renamed;
             public event EventHandler<ErrorEventArgs> Error;
+
+            public void Dispose()
+            {
+                this.watcher.Dispose();
+            }
         }
 
         public override IVirtualWatcher WatchDirectory(UnixPath dir)

Tesses.VirtualFilesystem.Local/Tesses.VirtualFilesystem.Local.csproj

@@ -17,9 +17,9 @@
       <PackageId>Tesses.VirtualFilesystem.Local</PackageId>
     <Author>Mike Nolan</Author>
     <Company>Tesses</Company>
-     <Version>1.0.0</Version>
+     <Version>1.0.1</Version>
-    <AssemblyVersion>1.0.0</AssemblyVersion>
+    <AssemblyVersion>1.0.1</AssemblyVersion>
-    <FileVersion>1.0.0</FileVersion>
+    <FileVersion>1.0.1</FileVersion>
     <Description>Another VirtualFilesystem for .NET</Description>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
      <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>

Tesses.VirtualFilesystem.Saf/Class1.cs

@@ -0,0 +1,510 @@
+using Android.Content;
+using Tesses.VirtualFilesystem;
+using Android.App;
+using Android.Content.PM;
+using AndroidX.DocumentFile.Provider;
+using Tesses.VirtualFilesystem.Extensions;
+namespace Tesses.VirtualFilesystem.Filesystems;
+
+
+public class SAFFileSystem : SyncFileSystem
+{
+    public const int RequestCode = 1447775022;
+    public const string SharedPreferencesFile = "tesess_vfs";
+    public static void RequestDirectory(Activity app,bool canwrite=true,bool presistant=false,int reqCode=RequestCode)
+    {
+        Intent intent = new Intent(Intent.ActionOpenDocumentTree);
+        intent.AddFlags(ActivityFlags.GrantReadUriPermission|(canwrite? ActivityFlags.GrantWriteUriPermission : 0)|(presistant?ActivityFlags.GrantPersistableUriPermission:0));
+        app.StartActivityForResult(intent,reqCode);
+    }
+    
+    public static SAFFileSystem? GetSAFFromResponse(Context? app,Intent? intent)
+    {
+        if(app == null || intent == null) return null;
+        var uri=intent.Data;
+        if(uri != null)
+        {
+            return new SAFFileSystem(uri,app);
+        }
+        return null;
+    }
+    public static SAFFileSystem? GetSAFFromResponsePresistant(Context? app,Intent? intent,string key)
+    {
+        if(app == null || intent == null) return null;
+        var uri=intent.Data;
+        if(uri != null)
+        {
+            var r = app?.ContentResolver;
+            if(r == null) return null;
+            var rw = intent.Flags & (ActivityFlags.GrantReadUriPermission | ActivityFlags.GrantWriteUriPermission);
+            r.TakePersistableUriPermission(uri,rw);
+            var app2=app?.CreatePackageContext(app.PackageName,0);
+            var sharedPrefs=app2?.GetSharedPreferences(SharedPreferencesFile,FileCreationMode.Private);
+
+            sharedPrefs?.Edit()?.PutString(key,uri.ToString())?.Apply();
+
+            
+            return new SAFFileSystem(uri,app);
+        }
+        return null;
+    }
+    public static void Revoke(Context? app,string key)
+    {
+        var app2=app?.CreatePackageContext(app.PackageName,0);
+        var sharedPrefs=app2?.GetSharedPreferences(SharedPreferencesFile,FileCreationMode.Private);
+        var res=sharedPrefs?.GetString(key,null);
+        var r = app?.ContentResolver;
+        if(r == null) return;
+
+        if(string.IsNullOrWhiteSpace(res)) return;
+        var uri = Android.Net.Uri.Parse(res);
+        if(uri == null) return;
+        r.ReleasePersistableUriPermission(uri,ActivityFlags.GrantReadUriPermission);
+        sharedPrefs?.Edit()?.Remove(key)?.Apply();
+    }
+
+    public static SAFFileSystem? GetSAFFromSharedStorage(Context? app,string key)
+    {
+        if(app == null) return null;
+        var app2=app?.CreatePackageContext(app.PackageName,0);
+        var sharedPrefs=app2?.GetSharedPreferences(SharedPreferencesFile,FileCreationMode.Private);
+        var res=sharedPrefs?.GetString(key,null);
+        
+        if(string.IsNullOrWhiteSpace(res)) return null;
+        var uri = Android.Net.Uri.Parse(res);
+        if(uri == null) return null;
+
+        return new SAFFileSystem(uri,app);
+    }
+    
+
+    public SAFFileSystem(global::Android.Net.Uri uri,Context? ctx)
+    {
+        Uri = uri;
+        Context = ctx;
+        
+    }
+    public global::Android.Net.Uri Uri {get;set;}
+    public Context? Context {get;set;}
+
+    
+    public override void CreateDirectory(UnixPath directory)
+    {
+        if(Context != null && Uri != null)
+        {
+
+            var dir = DocumentFile.FromTreeUri(Context,Uri);
+            if(dir == null) return;
+
+            foreach(var item in directory.Parts)
+            {
+                var dir2= dir?.FindFile(item);
+                if(dir2 != null)
+                {
+                    if(!dir2.IsDirectory && !dir2.IsFile && !dir2.IsVirtual)
+                    {
+                        dir = dir2.CreateDirectory(item);
+                    }
+                    else if(dir2.IsDirectory)
+                    {   
+                        dir = dir2;
+                    }
+                }
+            }
+            
+        }
+    }
+
+    public override void DeleteDirectory(UnixPath path)
+    {
+        if(Context != null && Uri != null)
+        {
+
+            var dir = DocumentFile.FromTreeUri(Context,Uri);
+            if(dir == null) return;
+
+            for(int i = 0;i<path.Parts.Length;i++)
+            {
+                var item = path.Parts[i];
+                var dir2= dir?.FindFile(item);
+                if(dir2 != null)
+                {
+                    if(!dir2.IsDirectory && !dir2.IsFile && !dir2.IsVirtual)
+                    {
+                        return;
+                    }
+                    else if(dir2.IsDirectory)
+                    {   
+                        dir = dir2;
+                        if(i==path.Parts.Length -1)
+                            dir.Delete();
+                    }
+                }
+            }
+            
+        }
+    }
+
+    public override void DeleteFile(UnixPath path)
+    {
+        
+        if(Context != null && Uri != null)
+        {
+
+            var dir = DocumentFile.FromTreeUri(Context,Uri);
+            if(dir == null) return;
+
+            for(int i = 0;i<path.Parts.Length;i++)
+            {
+                var item = path.Parts[i];
+                var dir2= dir?.FindFile(item);
+                if(dir2 != null)
+                {
+                    if(!dir2.IsDirectory && !dir2.IsFile && !dir2.IsVirtual)
+                    {
+                        return;
+                    }
+                     else if(dir2.IsDirectory)
+                    {
+                        dir=dir2;
+                    }
+                    else if(dir2.IsFile)
+                    {   
+                        dir = dir2;
+                        if(i==path.Parts.Length -1)
+                            dir.Delete();
+                    }
+                }
+            }
+            
+        }
+
+    }
+
+    public override bool DirectoryExists(UnixPath path)
+    {
+            if(path.IsRoot) return true;
+          if(Context != null && Uri != null)
+        {
+
+            var dir = DocumentFile.FromTreeUri(Context,Uri);
+            if(dir == null) return false;
+
+            for(int i = 0;i<path.Parts.Length;i++)
+            {
+                var item = path.Parts[i];
+                var dir2= dir?.FindFile(item);
+                if(dir2 != null)
+                {
+                    if(!dir2.IsDirectory && !dir2.IsFile && !dir2.IsVirtual)
+                    {
+                        return false;
+                    }
+                    else if(dir2.IsDirectory)
+                    {   
+                        dir = dir2;
+                        if(i==path.Parts.Length -1)
+                            return true;
+                    }
+                }
+            }
+           
+        }
+         return false;
+    }
+
+    public override IEnumerable<UnixPath> EnumerateFileSystemEntries(UnixPath path)
+    {
+          if(Context != null && Uri != null)
+        {
+
+            var dir = DocumentFile.FromTreeUri(Context,Uri);
+            if(dir == null) yield break;
+
+            if(path.IsRoot)
+            {
+                foreach(var _item in dir.ListFiles())
+                {
+                    yield return path / _item.Name;
+                }
+                yield break;
+            }
+
+            for(int i = 0;i<path.Parts.Length;i++)
+            {
+                var item = path.Parts[i];
+                var dir2= dir?.FindFile(item);
+                if(dir2 != null)
+                {
+                    if(!dir2.IsDirectory && !dir2.IsFile && !dir2.IsVirtual)
+                    {
+                        yield break;
+                    }
+                    else if(dir2.IsDirectory)
+                    {   
+                        dir = dir2;
+                        if(i==path.Parts.Length -1)
+                        {
+                            foreach(var _item in dir2.ListFiles())
+                            {
+                                yield return path / _item.Name;
+                            }
+                        }
+                    }
+                }
+            }
+           
+        }
+         
+    }
+
+    public override bool FileExists(UnixPath path)
+    {
+        if(Context != null && Uri != null)
+        {
+
+            var dir = DocumentFile.FromTreeUri(Context,Uri);
+            if(dir == null) return false;
+
+            for(int i = 0;i<path.Parts.Length;i++)
+            {
+                var item = path.Parts[i];
+                var dir2= dir?.FindFile(item);
+                if(dir2 != null)
+                {
+                    if(!dir2.IsDirectory && !dir2.IsFile && !dir2.IsVirtual)
+                    {
+                        return false;
+                    }
+                     else if(dir2.IsDirectory)
+                    {
+                        dir=dir2;
+                    }
+                    else if(dir2.IsFile)
+                    {   
+                        dir = dir2;
+                        if(i==path.Parts.Length -1)
+                            return true;
+                    }
+                }
+            }
+           
+        }
+         return false;
+    }
+
+    public override DateTime GetCreationTime(UnixPath path)
+    {
+          return DateTime.Now;
+    }
+
+    public override DateTime GetLastAccessTime(UnixPath path)
+    {
+        return DateTime.Now;
+    }
+
+    public override DateTime GetLastWriteTime(UnixPath path)
+    {
+         if(Context != null && Uri != null)
+        {
+
+            var dir = DocumentFile.FromTreeUri(Context,Uri);
+            if(dir == null) return DateTime.Now;
+
+            for(int i = 0;i<path.Parts.Length;i++)
+            {
+                var item = path.Parts[i];
+                var dir2= dir?.FindFile(item);
+                if(dir2 != null)
+                {
+                     if(dir2.Exists())
+                     {
+
+                     
+                        dir = dir2;
+                        if(i==path.Parts.Length -1)
+                            return DateTimeOffset.FromUnixTimeSeconds(dir2.LastModified()).DateTime;
+                     }
+                     else return DateTime.Now;
+                }
+            }
+           
+        }
+         return DateTime.Now;
+    }
+
+    public override void MoveDirectory(UnixPath src, UnixPath dest)
+    {
+        foreach(var item in this.EnumerateDirectories(src))
+        {
+            MoveDirectory(item,dest / item.Name);
+        }
+        foreach(var item in this.EnumerateFiles(src))
+        {
+            MoveFile(item,dest / item.Name);
+        }
+        DeleteDirectory(src);
+    }
+
+    public override void MoveFile(UnixPath src, UnixPath dest)
+    {
+        if(src.Parent == dest.Parent)
+        {
+            if(Context != null && Uri != null)
+        {
+
+            var dir = DocumentFile.FromTreeUri(Context,Uri);
+            if(dir == null) return;
+
+            for(int i = 0;i<src.Parts.Length;i++)
+            {
+                var item = src.Parts[i];
+                var dir2= dir?.FindFile(item);
+                if(dir2 != null)
+                {
+                    if(!dir2.IsDirectory && !dir2.IsFile && !dir2.IsVirtual)
+                    {
+                        return;
+                    }
+                    else if(dir2.IsDirectory)
+                    {
+                        dir=dir2;
+                    }
+                    else if(dir2.IsFile)
+                    {   
+                        dir = dir2;
+                        if(i==src.Parts.Length -1)
+                            dir.RenameTo(dest.Name);
+                    }
+                }
+            }
+           
+        }
+        
+        }
+        else
+        {
+            this.CopyFile(src,dest);
+            DeleteFile(src);
+        }
+    }
+
+    public override Stream Open(UnixPath path, FileMode mode, FileAccess access, FileShare share)
+    {
+        if(Context != null && Uri != null)
+        {
+
+            var dir = DocumentFile.FromTreeUri(Context,Uri);
+            if(dir == null) throw new FileNotFoundException(path.ToString());
+            
+            for(int i = 0;i<path.Parts.Length;i++)
+            {
+                var item = path.Parts[i];
+                var dir2= dir?.FindFile(item);
+                if(dir2 != null)
+                {
+                    if(!dir2.IsDirectory && !dir2.IsFile && !dir2.IsVirtual)
+                    {
+                        throw new FileNotFoundException(path.ToString());
+                    }
+                    else if(dir2.IsDirectory)
+                    {
+                        dir = dir2;
+                        
+                    }
+
+                    if(i==path.Parts.Length -1)
+                    {
+                        if(dir2?.IsFile ?? false)
+                        {
+                            if(mode == FileMode.CreateNew) throw new IOException("File already exists");
+                            return _OpenFile(dir2.Uri,mode,access,share);
+                            
+                        }
+                        else
+                        {
+                            var (mimeType,displayName)=GetDisplayNameAndMime(item);
+                            var f=dir?.CreateFile(mimeType,displayName);
+                            if(mode == FileMode.Open || mode == FileMode.Truncate || mode == FileMode.Append)
+                                throw new IOException("File does not exist");
+                            if(f != null)
+                            return _OpenFile(f.Uri,mode,access,share);
+                            throw new IOException("Could not open file");
+                        }
+                    }
+                    
+                }
+                
+            }
+            
+        }
+        throw new FileNotFoundException(path.ToString());
+    }
+
+    private (string mimeType, string displayName) GetDisplayNameAndMime(string item)
+    {
+        var mime=HeyRed.Mime.MimeTypesMap.GetMimeType(item);
+        if(mime == "application/octet-stream")
+        {
+            return ("unknown/unknown",item);
+        }
+        else
+        {
+            return (mime,Path.GetFileNameWithoutExtension(item));
+        }
+    }
+
+    private Stream _OpenFile(global::Android.Net.Uri uri, FileMode mode, FileAccess access, FileShare share)
+    {
+        
+        //FileMode.Append -> "a"
+        //FileMode.Create -> "w"
+        //FileMode.CreateNew -> "w"
+        //FileMode.Open -> "r or w"
+        //FileMode.OpenOrCreate -> "r or w"
+        //FileMode.Truncate -> "t"
+        //"r", "w", "wt", "wa", "rw" or "rwt"
+
+        Stream? strm = null;
+
+        if(access == FileAccess.Read)
+            strm = Context?.ContentResolver?.OpenInputStream(uri) ?? null;
+
+        if(access == FileAccess.Write)
+            if(mode == FileMode.Truncate)
+                strm = Context?.ContentResolver?.OpenOutputStream(uri,"wt");
+            else if(mode == FileMode.Append)
+                strm = Context?.ContentResolver?.OpenOutputStream(uri,"wa");
+            else
+                strm = Context?.ContentResolver?.OpenOutputStream(uri,"w");
+        
+        if(access == FileAccess.ReadWrite)
+            if(mode == FileMode.Truncate)
+                strm = Context?.ContentResolver?.OpenOutputStream(uri,"rwt");
+            else
+                strm = Context?.ContentResolver?.OpenOutputStream(uri,"rw");
+
+        
+        
+        
+        
+        if(strm == null) throw new IOException("Failed to open stream");
+        return strm;
+        
+    }
+
+    public override void SetCreationTime(UnixPath path, DateTime time)
+    {
+        
+    }
+
+    public override void SetLastAccessTime(UnixPath path, DateTime time)
+    {
+        
+    }
+
+    public override void SetLastWriteTime(UnixPath path, DateTime time)
+    {
+       
+    }
+}

Tesses.VirtualFilesystem.Saf/README.md

@@ -0,0 +1,99 @@
+# Tesses.VirtualFilesystem.Saf
+
+A library to use Tesses.VirtualFilesystem with Storage Access Framework (Android)
+
+# Nuget
+
+# License
+
+![GPL3-only](https://www.gnu.org/graphics/gplv3-with-text-136x68.png) 
+Licensed under [GPL3](https://www.gnu.org/licenses/)
+
+# How to use (not presistant)
+```csharp
+   ...
+   using Tesses.VirtualFilesystem;
+   using Tesses.VirtualFilesystem.Filesystems;
+   using Android.Content;
+   using AndroidX.DocumentFile.Provider;
+   using Tesses.VirtualFilesystem.Extensions;
+   ...
+
+   void SomeActivityFunction()
+   {
+        SAFFileSystem.RequestDirectory(this,true);
+   }    
+   protected override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent? data)
+   {
+        if(requestCode == SAFFileSystem.RequestCode && resultCode == Result.Ok)
+        {
+            var res=SAFFileSystem.GetSAFFromResponse(this,data);
+            if(res != null)
+                HandleFilesystem(res);
+        }
+   }
+   void HandleFilesystem(SAFFileSystem fs)
+   {
+        fs.CreateDirectory(Special.Root/"My Special Folder");
+        //read https://gitea.site.tesses.net/tesses50/tesses-vfs to get up to speed
+        //root is relative to the folder the user chose
+        //so get subdir filesystem is not needed
+   }
+```
+
+# How to use (presistant)
+```csharp
+   ...
+   using Tesses.VirtualFilesystem;
+   using Tesses.VirtualFilesystem.Filesystems;
+   using Android.Content;
+   using AndroidX.DocumentFile.Provider;
+   using Tesses.VirtualFilesystem.Extensions;
+   ...
+   const string MySAFKey = "MySafKey";
+   void SomethingWithContext()
+   {
+       var res= SAFFileSystem.GetSAFFromSharedStorage(this,MySAFKey);
+       if(res != null)
+            HandleFilesystem(res);
+   }
+   void SomeActivityFunction()
+   {
+        var res= SAFFileSystem.GetSAFFromSharedStorage(this,MySAFKey);
+       if(res != null)
+            HandleFilesystem(res);
+       else
+            SAFFileSystem.RequestDirectory(this,true,true);
+   }    
+   protected override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent? data)
+   {
+        if(requestCode == SAFFileSystem.RequestCode && resultCode == Result.Ok)
+        {
+            var res=SAFFileSystem.GetSAFFromResponsePresistant(this,data,MySAFKey);
+            if(res != null)
+                HandleFilesystem(res);
+        }
+   }
+   void HandleFilesystem(SAFFileSystem fs)
+   {
+        fs.CreateDirectory(Special.Root/"My Special Folder");
+        //read https://gitea.site.tesses.net/tesses50/tesses-vfs to get up to speed
+        //root is relative to the folder the user chose
+        //so get subdir filesystem is not needed
+   }
+```
+# How to revoke permissions
+```csharp
+   ...
+   using Tesses.VirtualFilesystem;
+   using Tesses.VirtualFilesystem.Filesystems;
+   using Android.Content;
+   using AndroidX.DocumentFile.Provider;
+   using Tesses.VirtualFilesystem.Extensions;
+   ...
+   const string MySAFKey = "MySafKey";
+    void SomethingWithContext()
+    {
+        SAFFileSystem.Revoke(this,MySAFKey);
+    }
+```

Tesses.VirtualFilesystem.Saf/Tesses.VirtualFilesystem.Saf.csproj

@@ -0,0 +1,32 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net8.0-android</TargetFramework>
+    <SupportedOSPlatformVersion>21</SupportedOSPlatformVersion>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+       <IsPackable>true</IsPackable>
+      <PackageId>Tesses.VirtualFilesystem.Saf</PackageId>
+    <Author>Mike Nolan</Author>
+    <Company>Tesses</Company>
+     <Version>1.0.0</Version>
+    <AssemblyVersion>1.0.0</AssemblyVersion>
+    <FileVersion>1.0.0</FileVersion>
+    <Description>Tesses.VirtualFilesystem for Android Storage Access Framework (Is slow though)</Description>
+    <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
+     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
+    <PackageTags>VFS, Filesystem, VirtualFilesystem</PackageTags>
+    <RepositoryUrl>https://gitlab.tesses.net/tesses50/tesses-vfs</RepositoryUrl>
+   
+    <PackageReadmeFile>README.md</PackageReadmeFile>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="MimeTypesMap" Version="1.0.8" />
+    <PackageReference Include="Tesses.VirtualFilesystem" Version="1.0.2" />
+    <PackageReference Include="Xamarin.AndroidX.DocumentFile" Version="1.0.1.27" />
+  </ItemGroup>
+   <ItemGroup>
+     <None Include="README.md" Pack="true" PackagePath="\"/>
+  </ItemGroup>
+
+
+</Project>

Tesses.VirtualFilesystem.Zio/Class1.cs

@@ -21,13 +21,20 @@ using Tesses.VirtualFilesystem;
 using System.Collections.Generic;
 using System;
 using System.IO;
+using Tesses.VirtualFilesystem.Extensions;
 
 namespace Tesses.VirtualFilesystem.Filesystems
 {
-    
     public class ZioFileSystem : SyncFileSystem
     {
         IFileSystem fs;
+
+        public IFileSystem Filesystem => fs;
+
+        public override void Dispose()
+        {
+            fs.Dispose();
+        }
         public ZioFileSystem(IFileSystem fs)
         {
             this.fs = fs;
@@ -171,7 +178,301 @@ namespace Tesses.VirtualFilesystem.Filesystems
             public event EventHandler<VirtualWatcherChangedArgs> Deleted;
             public event EventHandler<VirtualWatcherRenamedEventArgs> Renamed;
             public event EventHandler<ErrorEventArgs> Error;
+
+            public void Dispose()
+            {
+                this.watcher.Dispose();
+            }
         }
 
     }
+
+      public class ZioMountableWrapper : ZioFileSystem
+    {
+        public MountFileSystem MountFilesystem {get;}
+        private ZioMountableWrapper(MountFileSystem fs) : base(fs)
+        {
+            MountFilesystem = fs;
+        }
+
+        public static ZioMountableWrapper Create(IVirtualFilesystem fs,bool owned=true)
+        {
+            return new ZioMountableWrapper(new MountFileSystem(new TessesVFSFilesystem(fs),owned));
+        }
+        public static ZioMountableWrapper Create(bool owned=true)
+        {
+            return new ZioMountableWrapper(new MountFileSystem(owned));
+        }
+        public void Mount(UnixPath path,IVirtualFilesystem fs)
+        {
+            MountFilesystem.Mount(path.Path,new TessesVFSFilesystem(fs));
+        }
+        public bool IsMounted(UnixPath path)
+        {
+            return MountFilesystem.IsMounted(path.Path);
+        }
+        public Dictionary<UnixPath,IVirtualFilesystem> GetMounts()
+        {
+            Dictionary<UnixPath,IVirtualFilesystem> fs=new Dictionary<UnixPath, IVirtualFilesystem>();
+
+            foreach(var item in MountFilesystem.GetMounts())
+            {
+                var _fs=item.Value as TessesVFSFilesystem;
+                if(_fs !=null)
+                fs.Add(item.Key.FullName,_fs.Filesystem);
+            }
+            return fs;
+
+            
+        }
+    
+    }
+    
+    
+}
+
+namespace Zio.FileSystems
+{
+    public class TessesVFSFilesystem : Zio.FileSystems.FileSystem
+    {
+        protected override void Dispose(bool disposing)
+        {
+            if(disposing)
+                fs.Dispose();
+        }
+        IVirtualFilesystem fs;
+        public IVirtualFilesystem Filesystem => fs;
+        public TessesVFSFilesystem(IVirtualFilesystem fs)
+        {
+            this.fs = fs;
+        }
+        protected override UPath ConvertPathFromInternalImpl(string innerPath)
+        {
+            return innerPath;
+        }
+
+        protected override string ConvertPathToInternalImpl(UPath path)
+        {
+           return path.FullName;
+        }
+
+        protected override void CopyFileImpl(UPath srcPath, UPath destPath, bool overwrite)
+        {
+            if(!overwrite && fs.FileExists(fs.ConvertPathToUnixPath(ConvertPathToInternal(destPath)))) throw new IOException("File already exists");
+            
+            fs.CopyFile(fs.ConvertPathToUnixPath(ConvertPathToInternal(srcPath)),fs.ConvertPathToUnixPath(ConvertPathToInternal(destPath)));
+        }
+
+        protected override void CreateDirectoryImpl(UPath path)
+        {
+            fs.CreateDirectory(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)));
+        }
+
+        protected override void DeleteDirectoryImpl(UPath path, bool isRecursive)
+        {
+            fs.DeleteDirectory(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)),isRecursive);
+        }
+
+        protected override void DeleteFileImpl(UPath path)
+        {
+            fs.DeleteFile(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)));
+        }
+
+        protected override bool DirectoryExistsImpl(UPath path)
+        {
+            return fs.DirectoryExists(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)));
+        }
+
+        protected override IEnumerable<FileSystemItem> EnumerateItemsImpl(UPath path, SearchOption searchOption, SearchPredicate searchPredicate)
+        {
+            foreach(var item in fs.EnumerateFileSystemEntries(fs.ConvertPathToUnixPath(ConvertPathToInternal(path))))
+            {
+                yield return new FileSystemItem(this,ConvertPathFromInternal(fs.ConvertPathFromUnixPath(item)),fs.DirectoryExists(item));
+            }
+        }
+
+        protected override IEnumerable<UPath> EnumeratePathsImpl(UPath path, string searchPattern, SearchOption searchOption, SearchTarget searchTarget)
+        {
+            foreach(var item in fs.EnumerateFileSystemEntries(fs.ConvertPathToUnixPath(ConvertPathToInternal(path))))
+            {
+                yield return ConvertPathFromInternal(fs.ConvertPathFromUnixPath(item));
+            }
+        }
+
+        protected override bool FileExistsImpl(UPath path)
+        {
+            return fs.FileExists(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)));
+        }
+
+        protected override FileAttributes GetAttributesImpl(UPath path)
+        {
+            return fs.GetAttributes(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)));
+        }
+
+        protected override DateTime GetCreationTimeImpl(UPath path)
+        {
+            return fs.GetCreationTime(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)));
+        }
+
+        protected override long GetFileLengthImpl(UPath path)
+        {
+            using(var f = fs.OpenRead(fs.ConvertPathToUnixPath(ConvertPathToInternal(path))))
+            {
+                return f.Length;
+            }
+        }
+
+        protected override DateTime GetLastAccessTimeImpl(UPath path)
+        {
+            return fs.GetLastAccessTime(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)));
+        }
+
+        protected override DateTime GetLastWriteTimeImpl(UPath path)
+        {
+            return fs.GetLastWriteTime(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)));
+        }
+
+        protected override void MoveDirectoryImpl(UPath srcPath, UPath destPath)
+        {
+            fs.MoveDirectory(fs.ConvertPathToUnixPath(ConvertPathToInternal(srcPath)),fs.ConvertPathToUnixPath(ConvertPathToInternal(destPath)));
+        }
+
+        protected override void MoveFileImpl(UPath srcPath, UPath destPath)
+        {
+            fs.MoveDirectory(fs.ConvertPathToUnixPath(ConvertPathToInternal(srcPath)),fs.ConvertPathToUnixPath(ConvertPathToInternal(destPath)));
+       
+        }
+
+        protected override Stream OpenFileImpl(UPath path, FileMode mode, FileAccess access, FileShare share)
+        {
+            return fs.Open(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)),mode,access,share);
+        }
+
+        protected override void ReplaceFileImpl(UPath srcPath, UPath destPath, UPath destBackupPath, bool ignoreMetadataErrors)
+        {
+            MoveFile(destPath,destBackupPath);
+            MoveFile(srcPath,destPath);
+        }
+
+        protected override void SetAttributesImpl(UPath path, FileAttributes attributes)
+        {
+            fs.SetAttributes(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)),attributes);
+        }
+
+        protected override void SetCreationTimeImpl(UPath path, DateTime time)
+        {
+            fs.SetCreationTime(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)),time);
+        }
+
+        protected override void SetLastAccessTimeImpl(UPath path, DateTime time)
+        {
+            fs.SetLastAccessTime(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)),time);
+        }
+
+        protected override void SetLastWriteTimeImpl(UPath path, DateTime time)
+        {
+            fs.SetLastWriteTime(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)),time);
+        }
+
+        protected override IFileSystemWatcher WatchImpl(UPath path)
+        {
+            return new _FSW(this,fs,fs.ConvertPathToUnixPath(ConvertPathToInternal(path)));
+        }
+
+        protected override void CreateSymbolicLinkImpl(UPath path, UPath pathToTarget)
+        {
+            fs.CreateSymlink(fs.ConvertPathToUnixPath(ConvertPathToInternal(path)),fs.ConvertPathToUnixPath(ConvertPathToInternal(pathToTarget)));
+        }
+
+        protected override bool TryResolveLinkTargetImpl(UPath linkPath, out UPath resolvedPath)
+        {
+            if(fs.SymlinkExists(fs.ConvertPathToUnixPath(ConvertPathToInternal(linkPath))))
+            {
+                resolvedPath = ConvertPathFromInternal(fs.ConvertPathFromUnixPath(fs.ReadLink(fs.ConvertPathToUnixPath(ConvertPathToInternal(linkPath)))));
+                return true;
+            }
+            else
+            {
+                resolvedPath = ConvertPathFromInternal(fs.ConvertPathFromUnixPath(Special.Root));
+                return false;
+            }
+        }
+
+        private class _FSW : IFileSystemWatcher
+        {
+            IVirtualWatcher watcher;
+
+
+
+            public _FSW(IFileSystem fs2,IVirtualFilesystem fs,UnixPath unixPath)
+            {
+                this.FileSystem=fs2;
+                watcher=fs.WatchDirectory(unixPath);
+                Path = fs2.ConvertPathFromInternal(fs.ConvertPathFromUnixPath(unixPath));
+                this._fs = fs;
+                watcher.Changed += W_Changed;
+                watcher.Created += W_Created;
+                watcher.Deleted += W_Deleted;
+                watcher.Error += W_Error;
+                watcher.Renamed += W_Renamed;
+            }
+
+            private void W_Renamed(object sender, VirtualWatcherRenamedEventArgs e)
+            {
+                Renamed?.Invoke(this,new FileRenamedEventArgs(FileSystem,(Zio.WatcherChangeTypes)e.ChangeType,FileSystem.ConvertPathFromInternal(_fs.ConvertPathFromUnixPath(e.FullPath)),FileSystem.ConvertPathFromInternal(_fs.ConvertPathFromUnixPath(e.OldFullPath))));
+            }
+
+            private void W_Error(object sender, System.IO.ErrorEventArgs e)
+            {
+                Error?.Invoke(this,new FileSystemErrorEventArgs(e.GetException()));
+            }
+
+            private void W_Deleted(object sender, VirtualWatcherChangedArgs e)
+            {
+                Deleted?.Invoke(this,new FileChangedEventArgs(FileSystem,(Zio.WatcherChangeTypes)e.ChangeType,FileSystem.ConvertPathFromInternal(_fs.ConvertPathFromUnixPath(e.FullPath))));
+          
+            }
+
+            IVirtualFilesystem _fs;
+            private void W_Created(object sender, VirtualWatcherChangedArgs e)
+            {
+                Created?.Invoke(this,new FileChangedEventArgs(FileSystem,(Zio.WatcherChangeTypes)e.ChangeType,FileSystem.ConvertPathFromInternal(_fs.ConvertPathFromUnixPath(e.FullPath))));
+            }
+
+            private void W_Changed(object sender, VirtualWatcherChangedArgs e)
+            {
+                Changed?.Invoke(this,new FileChangedEventArgs(FileSystem,(Zio.WatcherChangeTypes)e.ChangeType,FileSystem.ConvertPathFromInternal(_fs.ConvertPathFromUnixPath(e.FullPath))));
+            }
+
+            public IFileSystem FileSystem  {get;}
+
+            public UPath Path {get;}
+
+            public int InternalBufferSize { get => watcher.InternalBufferSize; set => watcher.InternalBufferSize = value; }
+            public Zio.NotifyFilters NotifyFilter { get => (Zio.NotifyFilters)watcher.NotifyFilter;  set => watcher.NotifyFilter = (System.IO.NotifyFilters)value; }
+            public bool EnableRaisingEvents { get => watcher.EnableRaisingEvents; set => watcher.EnableRaisingEvents=value; }
+            public string Filter { get => watcher.Filter; set => watcher.Filter=value; }
+            public bool IncludeSubdirectories { get => watcher.IncludeSubdirectories; set => watcher.IncludeSubdirectories=value; }
+
+            public event EventHandler<FileChangedEventArgs> Changed;
+            public event EventHandler<FileChangedEventArgs> Created;
+            public event EventHandler<FileChangedEventArgs> Deleted;
+            public event EventHandler<FileSystemErrorEventArgs> Error;
+            public event EventHandler<FileRenamedEventArgs> Renamed;
+
+
+
+            public void Dispose()
+            {
+                watcher.Changed -= W_Changed;
+                watcher.Created -= W_Created;
+                watcher.Deleted -= W_Deleted;
+                watcher.Error -= W_Error;
+                watcher.Renamed -= W_Renamed;
+                watcher.Dispose();
+            }
+        }
+    }
+
+
 }

Tesses.VirtualFilesystem.Zio/Tesses.VirtualFilesystem.Zio.csproj

@@ -2,14 +2,16 @@
 
   <ItemGroup>
     <ProjectReference Include="..\Tesses.VirtualFilesystem\Tesses.VirtualFilesystem.csproj" />
+    <ProjectReference Include="..\Tesses.VirtualFilesystem.Extensions\Tesses.VirtualFilesystem.Extensions.csproj" />
+    
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Zio" Version="0.16.1" />
+    <PackageReference Include="Zio" Version="0.19.1" />
   </ItemGroup>
 
    <ItemGroup>
-     <None Include="..\README.md" Pack="true" PackagePath="\"/>
+     <None Include="..\README.md" Pack="true" PackagePath="\" />
   </ItemGroup>
 
   <PropertyGroup>
@@ -18,9 +20,9 @@
       <PackageId>Tesses.VirtualFilesystem.Zio</PackageId>
     <Author>Mike Nolan</Author>
     <Company>Tesses</Company>
-     <Version>1.0.0</Version>
+     <Version>1.0.1</Version>
-    <AssemblyVersion>1.0.0</AssemblyVersion>
+    <AssemblyVersion>1.0.1</AssemblyVersion>
-    <FileVersion>1.0.0</FileVersion>
+    <FileVersion>1.0.1</FileVersion>
     <Description>Another VirtualFilesystem for .NET</Description>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
      <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>