From f0455dee683e831487c345a575b7894c0e2bf61a Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Sat, 26 Dec 2020 23:46:20 -0800
Subject: [PATCH] WIP

---
 weed/ftpd/ftp_fs.go     | 61 +++++++++++++++++++++++++++++++++++++++++
 weed/ftpd/ftp_server.go | 13 +++++++--
 2 files changed, 72 insertions(+), 2 deletions(-)
 create mode 100644 weed/ftpd/ftp_fs.go

diff --git a/weed/ftpd/ftp_fs.go b/weed/ftpd/ftp_fs.go
new file mode 100644
index 000000000..58ed60d17
--- /dev/null
+++ b/weed/ftpd/ftp_fs.go
@@ -0,0 +1,61 @@
+package ftpd
+
+import (
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"github.com/spf13/afero"
+	"net"
+	"os"
+	"time"
+)
+
+type FtpFileSystem struct {
+	option      *FtpServerOption
+	ftpListener net.Listener
+}
+
+var (
+	_ = afero.Fs(&FtpFileSystem{})
+)
+
+// NewServer returns a new FTP server driver
+func NewFtpFileSystem(option *FtpServerOption) (*FtpFileSystem, error) {
+	return &FtpFileSystem{
+		option: option,
+	}, nil
+}
+
+func (fs *FtpFileSystem) Create(name string) (afero.File, error) {
+
+}
+func (fs *FtpFileSystem) Mkdir(name string, perm os.FileMode) error {
+
+}
+func (fs *FtpFileSystem) MkdirAll(path string, perm os.FileMode) error {
+
+}
+func (fs *FtpFileSystem) Open(name string) (afero.File, error) {
+
+}
+func (fs *FtpFileSystem) OpenFile(name string, flag int, perm os.FileMode) (afero.File, error) {
+
+}
+func (fs *FtpFileSystem) Remove(name string) error {
+
+}
+func (fs *FtpFileSystem) RemoveAll(path string) error {
+
+}
+func (fs *FtpFileSystem) Rename(oldname, newname string) error {
+
+}
+func (fs *FtpFileSystem) Stat(name string) (os.FileInfo, error) {
+
+}
+func (fs *FtpFileSystem) Name() string {
+	return "SeaweedFS FTP Server " + util.Version()
+}
+func (fs *FtpFileSystem) Chmod(name string, mode os.FileMode) error {
+}
+func (fs *FtpFileSystem) Chtimes(name string, atime time.Time, mtime time.Time) error {
+
+}
diff --git a/weed/ftpd/ftp_server.go b/weed/ftpd/ftp_server.go
index 4a0dca2c3..633a0371c 100644
--- a/weed/ftpd/ftp_server.go
+++ b/weed/ftpd/ftp_server.go
@@ -4,6 +4,7 @@ import (
 	"crypto/tls"
 	"errors"
 	"fmt"
+	"github.com/spf13/afero"
 	"net"
 
 	ftpserver "github.com/fclairamb/ftpserverlib"
@@ -25,16 +26,18 @@ type FtpServerOption struct {
 type SftpServer struct {
 	option      *FtpServerOption
 	ftpListener net.Listener
+	fs          *FtpFileSystem
 }
 
 var _ = ftpserver.MainDriver(&SftpServer{})
 
 // NewServer returns a new FTP server driver
 func NewFtpServer(ftpListener net.Listener, option *FtpServerOption) (*SftpServer, error) {
-	var err error
+	fs, err := NewFtpFileSystem(option)
 	server := &SftpServer{
 		option:      option,
 		ftpListener: ftpListener,
+		fs:          fs,
 	}
 	return server, err
 }
@@ -71,7 +74,9 @@ func (s *SftpServer) ClientDisconnected(cc ftpserver.ClientContext) {
 
 // AuthUser authenticates the user and selects an handling driver
 func (s *SftpServer) AuthUser(cc ftpserver.ClientContext, username, password string) (ftpserver.ClientDriver, error) {
-	return nil, nil
+	return &ClientDriver{
+		Fs: s.fs,
+	}, nil
 }
 
 // GetTLSConfig returns a TLS Certificate to use
@@ -79,3 +84,7 @@ func (s *SftpServer) AuthUser(cc ftpserver.ClientContext, username, password str
 func (s *SftpServer) GetTLSConfig() (*tls.Config, error) {
 	return nil, errors.New("no TLS certificate configured")
 }
+
+type ClientDriver struct {
+	afero.Fs
+}