You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
3.1 KiB
106 lines
3.1 KiB
// sftp_server.go
|
|
package sftpd
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"time"
|
|
|
|
"github.com/pkg/sftp"
|
|
"github.com/seaweedfs/seaweedfs/weed/glog"
|
|
"github.com/seaweedfs/seaweedfs/weed/pb"
|
|
filer_pb "github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
|
|
"github.com/seaweedfs/seaweedfs/weed/sftpd/user"
|
|
"github.com/seaweedfs/seaweedfs/weed/util"
|
|
"google.golang.org/grpc"
|
|
)
|
|
|
|
type SftpServer struct {
|
|
filerAddr pb.ServerAddress
|
|
grpcDialOption grpc.DialOption
|
|
dataCenter string
|
|
filerGroup string
|
|
user *user.User
|
|
}
|
|
|
|
// NewSftpServer constructs the server.
|
|
func NewSftpServer(filerAddr pb.ServerAddress, grpcDialOption grpc.DialOption, dataCenter, filerGroup string, user *user.User) SftpServer {
|
|
|
|
return SftpServer{
|
|
filerAddr: filerAddr,
|
|
grpcDialOption: grpcDialOption,
|
|
dataCenter: dataCenter,
|
|
filerGroup: filerGroup,
|
|
user: user,
|
|
}
|
|
}
|
|
|
|
// Fileread is invoked for “get” requests.
|
|
func (fs *SftpServer) Fileread(req *sftp.Request) (io.ReaderAt, error) {
|
|
return fs.readFile(req)
|
|
}
|
|
|
|
// Filewrite is invoked for “put” requests.
|
|
func (fs *SftpServer) Filewrite(req *sftp.Request) (io.WriterAt, error) {
|
|
return fs.newFileWriter(req)
|
|
}
|
|
|
|
// Filecmd handles Remove, Rename, Mkdir, Rmdir, etc.
|
|
func (fs *SftpServer) Filecmd(req *sftp.Request) error {
|
|
return fs.dispatchCmd(req)
|
|
}
|
|
|
|
// Filelist handles directory listings.
|
|
func (fs *SftpServer) Filelist(req *sftp.Request) (sftp.ListerAt, error) {
|
|
return fs.listDir(req)
|
|
}
|
|
|
|
// EnsureHomeDirectory creates the user's home directory if it doesn't exist
|
|
func (fs *SftpServer) EnsureHomeDirectory() error {
|
|
if fs.user.HomeDir == "" {
|
|
return fmt.Errorf("user has no home directory configured")
|
|
}
|
|
|
|
glog.V(0).Infof("Ensuring home directory exists for user %s: %s", fs.user.Username, fs.user.HomeDir)
|
|
|
|
// Check if home directory already exists
|
|
entry, err := fs.getEntry(fs.user.HomeDir)
|
|
if err == nil && entry != nil {
|
|
// Directory exists, just ensure proper ownership
|
|
if entry.Attributes.Uid != fs.user.Uid || entry.Attributes.Gid != fs.user.Gid {
|
|
dir, _ := util.FullPath(fs.user.HomeDir).DirAndName()
|
|
entry.Attributes.Uid = fs.user.Uid
|
|
entry.Attributes.Gid = fs.user.Gid
|
|
return fs.updateEntry(dir, entry)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Skip permission check for home directory creation
|
|
// This is a special case where we want to create the directory regardless
|
|
dir, name := util.FullPath(fs.user.HomeDir).DirAndName()
|
|
|
|
// Create the directory with proper permissions using filer_pb.Mkdir
|
|
err = filer_pb.Mkdir(context.Background(), fs, dir, name, func(entry *filer_pb.Entry) {
|
|
mode := uint32(0700 | os.ModeDir) // Default to private permissions for home dirs
|
|
entry.Attributes.FileMode = mode
|
|
entry.Attributes.Uid = fs.user.Uid
|
|
entry.Attributes.Gid = fs.user.Gid
|
|
now := time.Now().Unix()
|
|
entry.Attributes.Crtime = now
|
|
entry.Attributes.Mtime = now
|
|
if entry.Extended == nil {
|
|
entry.Extended = make(map[string][]byte)
|
|
}
|
|
entry.Extended["creator"] = []byte(fs.user.Username)
|
|
})
|
|
|
|
if err != nil {
|
|
return fmt.Errorf("failed to create home directory: %v", err)
|
|
}
|
|
|
|
glog.V(0).Infof("Successfully created home directory for user %s: %s", fs.user.Username, fs.user.HomeDir)
|
|
return nil
|
|
}
|