package filesys import ( "context" "os" "strings" "time" "github.com/chrislusf/seaweedfs/weed/filer2" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/seaweedfs/fuse" "github.com/seaweedfs/fuse/fs" ) type Dir struct { Path string wfs *WFS entry *filer_pb.Entry } var _ = fs.Node(&Dir{}) var _ = fs.NodeCreater(&Dir{}) var _ = fs.NodeMkdirer(&Dir{}) var _ = fs.NodeRequestLookuper(&Dir{}) var _ = fs.HandleReadDirAller(&Dir{}) var _ = fs.NodeRemover(&Dir{}) var _ = fs.NodeRenamer(&Dir{}) var _ = fs.NodeSetattrer(&Dir{}) var _ = fs.NodeGetxattrer(&Dir{}) var _ = fs.NodeSetxattrer(&Dir{}) var _ = fs.NodeRemovexattrer(&Dir{}) var _ = fs.NodeListxattrer(&Dir{}) var _ = fs.NodeForgetter(&Dir{}) func (dir *Dir) Attr(ctx context.Context, attr *fuse.Attr) error { glog.V(3).Infof("dir Attr %s, existing attr: %+v", dir.Path, attr) // https://github.com/bazil/fuse/issues/196 attr.Valid = time.Second if dir.Path == dir.wfs.option.FilerMountRootPath { dir.setRootDirAttributes(attr) glog.V(3).Infof("root dir Attr %s, attr: %+v", dir.Path, attr) return nil } if err := dir.maybeLoadEntry(ctx); err != nil { glog.V(3).Infof("dir Attr %s,err: %+v", dir.Path, err) return err } attr.Inode = filer2.FullPath(dir.Path).AsInode() attr.Mode = os.FileMode(dir.entry.Attributes.FileMode) | os.ModeDir attr.Mtime = time.Unix(dir.entry.Attributes.Mtime, 0) attr.Ctime = time.Unix(dir.entry.Attributes.Crtime, 0) attr.Gid = dir.entry.Attributes.Gid attr.Uid = dir.entry.Attributes.Uid glog.V(3).Infof("dir Attr %s, attr: %+v", dir.Path, attr) return nil } func (dir *Dir) Getxattr(ctx context.Context, req *fuse.GetxattrRequest, resp *fuse.GetxattrResponse) error { glog.V(4).Infof("dir Getxattr %s", dir.Path) if err := dir.maybeLoadEntry(ctx); err != nil { return err } return getxattr(dir.entry, req, resp) } func (dir *Dir) setRootDirAttributes(attr *fuse.Attr) { attr.Inode = 1 // filer2.FullPath(dir.Path).AsInode() attr.Valid = time.Hour attr.Uid = dir.wfs.option.MountUid attr.Gid = dir.wfs.option.MountGid attr.Mode = dir.wfs.option.MountMode attr.Crtime = dir.wfs.option.MountCtime attr.Ctime = dir.wfs.option.MountCtime attr.Mtime = dir.wfs.option.MountMtime attr.Atime = dir.wfs.option.MountMtime attr.BlockSize = 1024 * 1024 } func (dir *Dir) newFile(name string, entry *filer_pb.Entry) fs.Node { return dir.wfs.getNode(filer2.NewFullPath(dir.Path, name), func() fs.Node { return &File{ Name: name, dir: dir, wfs: dir.wfs, entry: entry, entryViewCache: nil, } }) } func (dir *Dir) newDirectory(fullpath filer2.FullPath, entry *filer_pb.Entry) fs.Node { return dir.wfs.getNode(fullpath, func() fs.Node { return &Dir{Path: string(fullpath), wfs: dir.wfs, entry: entry} }) } func (dir *Dir) Create(ctx context.Context, req *fuse.CreateRequest, resp *fuse.CreateResponse) (fs.Node, fs.Handle, error) { request := &filer_pb.CreateEntryRequest{ Directory: dir.Path, Entry: &filer_pb.Entry{ Name: req.Name, IsDirectory: req.Mode&os.ModeDir > 0, Attributes: &filer_pb.FuseAttributes{ Mtime: time.Now().Unix(), Crtime: time.Now().Unix(), FileMode: uint32(req.Mode &^ dir.wfs.option.Umask), Uid: req.Uid, Gid: req.Gid, Collection: dir.wfs.option.Collection, Replication: dir.wfs.option.Replication, TtlSec: dir.wfs.option.TtlSec, }, }, OExcl: req.Flags&fuse.OpenExclusive != 0, } glog.V(1).Infof("create: %v", req.String()) if err := dir.wfs.WithFilerClient(ctx, func(client filer_pb.SeaweedFilerClient) error { if _, err := client.CreateEntry(ctx, request); err != nil { glog.V(0).Infof("create %s/%s: %v", dir.Path, req.Name, err) if strings.Contains(err.Error(), "EEXIST") { return fuse.EEXIST } return fuse.EIO } return nil }); err != nil { return nil, nil, err } node := dir.newFile(req.Name, request.Entry) if request.Entry.IsDirectory { return node, nil, nil } file := node.(*File) file.isOpen++ fh := dir.wfs.AcquireHandle(file, req.Uid, req.Gid) return file, fh, nil } func (dir *Dir) Mkdir(ctx context.Context, req *fuse.MkdirRequest) (fs.Node, error) { newEntry := &filer_pb.Entry{ Name: req.Name, IsDirectory: true, Attributes: &filer_pb.FuseAttributes{ Mtime: time.Now().Unix(), Crtime: time.Now().Unix(), FileMode: uint32(req.Mode &^ dir.wfs.option.Umask), Uid: req.Uid, Gid: req.Gid, }, } err := dir.wfs.WithFilerClient(ctx, func(client filer_pb.SeaweedFilerClient) error { request := &filer_pb.CreateEntryRequest{ Directory: dir.Path, Entry: newEntry, } glog.V(1).Infof("mkdir: %v", request) if _, err := client.CreateEntry(ctx, request); err != nil { glog.V(0).Infof("mkdir %s/%s: %v", dir.Path, req.Name, err) return err } return nil }) if err == nil { node := dir.newDirectory(filer2.NewFullPath(dir.Path, req.Name), newEntry) return node, nil } return nil, fuse.EIO } func (dir *Dir) Lookup(ctx context.Context, req *fuse.LookupRequest, resp *fuse.LookupResponse) (node fs.Node, err error) { glog.V(4).Infof("dir Lookup %s: %s", dir.Path, req.Name) fullFilePath := filer2.NewFullPath(dir.Path, req.Name) entry := dir.wfs.cacheGet(fullFilePath) if entry == nil { // glog.V(3).Infof("dir Lookup cache miss %s", fullFilePath) entry, err = filer2.GetEntry(ctx, dir.wfs, fullFilePath) if err != nil { glog.V(1).Infof("dir GetEntry %s: %v", fullFilePath, err) return nil, fuse.ENOENT } dir.wfs.cacheSet(fullFilePath, entry, 5*time.Minute) } else { glog.V(4).Infof("dir Lookup cache hit %s", fullFilePath) } if entry != nil { if entry.IsDirectory { node = dir.newDirectory(fullFilePath, entry) } else { node = dir.newFile(req.Name, entry) } // resp.EntryValid = time.Second resp.Attr.Inode = fullFilePath.AsInode() resp.Attr.Valid = time.Second resp.Attr.Mtime = time.Unix(entry.Attributes.Mtime, 0) resp.Attr.Ctime = time.Unix(entry.Attributes.Crtime, 0) resp.Attr.Mode = os.FileMode(entry.Attributes.FileMode) resp.Attr.Gid = entry.Attributes.Gid resp.Attr.Uid = entry.Attributes.Uid return node, nil } glog.V(1).Infof("not found dir GetEntry %s: %v", fullFilePath, err) return nil, fuse.ENOENT } func (dir *Dir) ReadDirAll(ctx context.Context) (ret []fuse.Dirent, err error) { glog.V(3).Infof("dir ReadDirAll %s", dir.Path) cacheTtl := 5 * time.Minute readErr := filer2.ReadDirAllEntries(ctx, dir.wfs, filer2.FullPath(dir.Path), "", func(entry *filer_pb.Entry, isLast bool) { fullpath := filer2.NewFullPath(dir.Path, entry.Name) inode := fullpath.AsInode() if entry.IsDirectory { dirent := fuse.Dirent{Inode: inode, Name: entry.Name, Type: fuse.DT_Dir} ret = append(ret, dirent) } else { dirent := fuse.Dirent{Inode: inode, Name: entry.Name, Type: fuse.DT_File} ret = append(ret, dirent) } dir.wfs.cacheSet(fullpath, entry, cacheTtl) }) if readErr != nil { glog.V(0).Infof("list %s: %v", dir.Path, err) return ret, fuse.EIO } return ret, err } func (dir *Dir) Remove(ctx context.Context, req *fuse.RemoveRequest) error { if !req.Dir { return dir.removeOneFile(ctx, req) } return dir.removeFolder(ctx, req) } func (dir *Dir) removeOneFile(ctx context.Context, req *fuse.RemoveRequest) error { filePath := filer2.NewFullPath(dir.Path, req.Name) entry, err := filer2.GetEntry(ctx, dir.wfs, filePath) if err != nil { return err } dir.wfs.deleteFileChunks(ctx, entry.Chunks) dir.wfs.cacheDelete(filePath) return dir.wfs.WithFilerClient(ctx, func(client filer_pb.SeaweedFilerClient) error { request := &filer_pb.DeleteEntryRequest{ Directory: dir.Path, Name: req.Name, IsDeleteData: false, } glog.V(3).Infof("remove file: %v", request) _, err := client.DeleteEntry(ctx, request) if err != nil { glog.V(3).Infof("not found remove file %s/%s: %v", dir.Path, req.Name, err) return fuse.ENOENT } return nil }) } func (dir *Dir) removeFolder(ctx context.Context, req *fuse.RemoveRequest) error { dir.wfs.cacheDelete(filer2.NewFullPath(dir.Path, req.Name)) return dir.wfs.WithFilerClient(ctx, func(client filer_pb.SeaweedFilerClient) error { request := &filer_pb.DeleteEntryRequest{ Directory: dir.Path, Name: req.Name, IsDeleteData: true, } glog.V(3).Infof("remove directory entry: %v", request) _, err := client.DeleteEntry(ctx, request) if err != nil { glog.V(3).Infof("not found remove %s/%s: %v", dir.Path, req.Name, err) return fuse.ENOENT } return nil }) } func (dir *Dir) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *fuse.SetattrResponse) error { glog.V(3).Infof("%v dir setattr %+v", dir.Path, req) if err := dir.maybeLoadEntry(ctx); err != nil { return err } if req.Valid.Mode() { dir.entry.Attributes.FileMode = uint32(req.Mode) } if req.Valid.Uid() { dir.entry.Attributes.Uid = req.Uid } if req.Valid.Gid() { dir.entry.Attributes.Gid = req.Gid } if req.Valid.Mtime() { dir.entry.Attributes.Mtime = req.Mtime.Unix() } dir.wfs.cacheDelete(filer2.FullPath(dir.Path)) return dir.saveEntry(ctx) } func (dir *Dir) Setxattr(ctx context.Context, req *fuse.SetxattrRequest) error { glog.V(4).Infof("dir Setxattr %s: %s", dir.Path, req.Name) if err := dir.maybeLoadEntry(ctx); err != nil { return err } if err := setxattr(dir.entry, req); err != nil { return err } dir.wfs.cacheDelete(filer2.FullPath(dir.Path)) return dir.saveEntry(ctx) } func (dir *Dir) Removexattr(ctx context.Context, req *fuse.RemovexattrRequest) error { glog.V(4).Infof("dir Removexattr %s: %s", dir.Path, req.Name) if err := dir.maybeLoadEntry(ctx); err != nil { return err } if err := removexattr(dir.entry, req); err != nil { return err } dir.wfs.cacheDelete(filer2.FullPath(dir.Path)) return dir.saveEntry(ctx) } func (dir *Dir) Listxattr(ctx context.Context, req *fuse.ListxattrRequest, resp *fuse.ListxattrResponse) error { glog.V(4).Infof("dir Listxattr %s", dir.Path) if err := dir.maybeLoadEntry(ctx); err != nil { return err } if err := listxattr(dir.entry, req, resp); err != nil { return err } return nil } func (dir *Dir) Forget() { glog.V(3).Infof("Forget dir %s", dir.Path) dir.wfs.forgetNode(filer2.FullPath(dir.Path)) } func (dir *Dir) maybeLoadEntry(ctx context.Context) error { if dir.entry == nil { parentDirPath, name := filer2.FullPath(dir.Path).DirAndName() entry, err := dir.wfs.maybeLoadEntry(ctx, parentDirPath, name) if err != nil { return err } dir.entry = entry } return nil } func (dir *Dir) saveEntry(ctx context.Context) error { parentDir, name := filer2.FullPath(dir.Path).DirAndName() return dir.wfs.WithFilerClient(ctx, func(client filer_pb.SeaweedFilerClient) error { request := &filer_pb.UpdateEntryRequest{ Directory: parentDir, Entry: dir.entry, } glog.V(1).Infof("save dir entry: %v", request) _, err := client.UpdateEntry(ctx, request) if err != nil { glog.V(0).Infof("UpdateEntry dir %s/%s: %v", parentDir, name, err) return fuse.EIO } return nil }) }