decomposedfs

package
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 Go to latest Published: Nov 24, 2022 License: Apache-2.0 Imports: 45 Imported by: 0

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Constants

This section is empty.

Variables

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var SpaceGrant struct{}

SpaceGrant is the key used to signal not to create a new space when a grant is assigned to a storage space.

Functions

func New 

func New(o *options.Options, lu *Lookup, p PermissionsChecker, tp Tree) (storage.FS, error)

New returns an implementation of the storage.FS interface that talks to a local filesystem.

func NewDefault 

func NewDefault(m map[string]interface{}, bs tree.Blobstore) (storage.FS, error)

NewDefault returns an instance with default components.

Types

type Decomposedfs 

type Decomposedfs struct {
	// contains filtered or unexported fields
}

Decomposedfs provides the base for decomposed filesystem implementations.

func (*Decomposedfs) AddGrant 

func (fs *Decomposedfs) AddGrant(ctx context.Context, ref *provider.Reference, g *provider.Grant) (err error)

AddGrant adds a grant to a resource.

func (*Decomposedfs) AsConcatableUpload 

func (fs *Decomposedfs) AsConcatableUpload(upload tusd.Upload) tusd.ConcatableUpload

AsConcatableUpload returns a ConcatableUpload.

func (*Decomposedfs) AsLengthDeclarableUpload 

func (fs *Decomposedfs) AsLengthDeclarableUpload(upload tusd.Upload) tusd.LengthDeclarableUpload

AsLengthDeclarableUpload returns a LengthDeclarableUpload.

func (*Decomposedfs) AsTerminatableUpload 

func (fs *Decomposedfs) AsTerminatableUpload(upload tusd.Upload) tusd.TerminatableUpload

AsTerminatableUpload returns a TerminatableUpload.

func (*Decomposedfs) CreateDir 

func (fs *Decomposedfs) CreateDir(ctx context.Context, ref *provider.Reference) (err error)

CreateDir creates the specified directory.

func (*Decomposedfs) CreateHome 

func (fs *Decomposedfs) CreateHome(ctx context.Context) (err error)

CreateHome creates a new home node for the given user.

func (*Decomposedfs) CreateReference 

func (fs *Decomposedfs) CreateReference(ctx context.Context, p string, targetURI *url.URL) (err error)

CreateReference creates a reference as a node folder with the target stored in extended attributes There is no difference between the /Shares folder and normal nodes because the storage is not supposed to be accessible without the storage provider. In effect everything is a shadow namespace. To mimic the eos end owncloud driver we only allow references as children of the "/Shares" folder TODO when home support is enabled should the "/Shares" folder still be listed?

func (*Decomposedfs) CreateStorageSpace 

func (fs *Decomposedfs) CreateStorageSpace(ctx context.Context, req *provider.CreateStorageSpaceRequest) (*provider.CreateStorageSpaceResponse, error)

CreateStorageSpace creates a storage space.

func (*Decomposedfs) Delete 

func (fs *Decomposedfs) Delete(ctx context.Context, ref *provider.Reference) (err error)

Delete deletes the specified resource.

func (*Decomposedfs) DenyGrant 

func (fs *Decomposedfs) DenyGrant(ctx context.Context, ref *provider.Reference, g *provider.Grantee) error

DenyGrant denies access to a resource.

func (*Decomposedfs) Download 

func (fs *Decomposedfs) Download(ctx context.Context, ref *provider.Reference) (io.ReadCloser, error)

Download returns a reader to the specified resource.

func (*Decomposedfs) DownloadRevision 

func (fs *Decomposedfs) DownloadRevision(ctx context.Context, ref *provider.Reference, revisionKey string) (io.ReadCloser, error)

DownloadRevision returns a reader for the specified revision.

func (*Decomposedfs) EmptyRecycle 

func (fs *Decomposedfs) EmptyRecycle(ctx context.Context) error

EmptyRecycle empties the trash.

func (*Decomposedfs) GetHome 

func (fs *Decomposedfs) GetHome(ctx context.Context) (string, error)

GetHome is called to look up the home path for a user It is NOT supposed to return the internal path but the external path.

func (*Decomposedfs) GetLock 

func (fs *Decomposedfs) GetLock(ctx context.Context, ref *provider.Reference) (*provider.Lock, error)

GetLock returns an existing lock on the given reference.

func (*Decomposedfs) GetMD 

func (fs *Decomposedfs) GetMD(ctx context.Context, ref *provider.Reference, mdKeys []string) (ri *provider.ResourceInfo, err error)

GetMD returns the metadata for the specified resource.

func (*Decomposedfs) GetPathByID 

func (fs *Decomposedfs) GetPathByID(ctx context.Context, id *provider.ResourceId) (string, error)

GetPathByID returns the fn pointed by the file id, without the internal namespace.

func (*Decomposedfs) GetQuota 

func (fs *Decomposedfs) GetQuota(ctx context.Context, ref *provider.Reference) (total uint64, inUse uint64, err error)

GetQuota returns the quota available TODO Document in the cs3 should we return quota or free space?

func (*Decomposedfs) GetUpload 

func (fs *Decomposedfs) GetUpload(ctx context.Context, id string) (tusd.Upload, error)

GetUpload returns the Upload for the given upload id.

func (*Decomposedfs) InitiateUpload 

func (fs *Decomposedfs) InitiateUpload(ctx context.Context, ref *provider.Reference, uploadLength int64, metadata map[string]string) (map[string]string, error)

InitiateUpload returns upload ids corresponding to different protocols it supports TODO read optional content for small files in this request TODO InitiateUpload (and Upload) needs a way to receive the expected checksum. Maybe in metadata as 'checksum' => 'sha1 aeosvp45w5xaeoe' = lowercase, space separated?

func (*Decomposedfs) ListFolder 

func (fs *Decomposedfs) ListFolder(ctx context.Context, ref *provider.Reference, mdKeys []string) (finfos []*provider.ResourceInfo, err error)

ListFolder returns a list of resources in the specified folder.

func (*Decomposedfs) ListGrants 

func (fs *Decomposedfs) ListGrants(ctx context.Context, ref *provider.Reference) (grants []*provider.Grant, err error)

ListGrants lists the grants on the specified resource.

func (*Decomposedfs) ListRecycle 

func (fs *Decomposedfs) ListRecycle(ctx context.Context, basePath, key, relativePath string) ([]*provider.RecycleItem, error)

ListRecycle returns the list of available recycle items.

func (*Decomposedfs) ListRevisions 

func (fs *Decomposedfs) ListRevisions(ctx context.Context, ref *provider.Reference) (revisions []*provider.FileVersion, err error)

ListRevisions lists the revisions of the given resource.

func (*Decomposedfs) ListStorageSpaces 

func (fs *Decomposedfs) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter) ([]*provider.StorageSpace, error)

ListStorageSpaces returns a list of StorageSpaces. The list can be filtered by space type or space id. Spaces are persisted with symlinks in /spaces/<type>/<spaceid> pointing to ../../nodes/<nodeid>, the root node of the space The spaceid is a concatenation of storageid + "!" + nodeid.

func (*Decomposedfs) Move 

func (fs *Decomposedfs) Move(ctx context.Context, oldRef, newRef *provider.Reference) (err error)

Move moves a resource from one reference to another.

func (*Decomposedfs) NewUpload 

func (fs *Decomposedfs) NewUpload(ctx context.Context, info tusd.FileInfo) (upload tusd.Upload, err error)

NewUpload returns a new tus Upload instance.

func (*Decomposedfs) PurgeRecycleItem 

func (fs *Decomposedfs) PurgeRecycleItem(ctx context.Context, basePath, key, relativePath string) error

PurgeRecycleItem purges the specified item.

func (*Decomposedfs) RefreshLock 

func (fs *Decomposedfs) RefreshLock(ctx context.Context, ref *provider.Reference, lock *provider.Lock, existingLockID string) error

RefreshLock refreshes an existing lock on the given reference.

func (*Decomposedfs) RemoveGrant 

func (fs *Decomposedfs) RemoveGrant(ctx context.Context, ref *provider.Reference, g *provider.Grant) (err error)

RemoveGrant removes a grant from resource.

func (*Decomposedfs) RestoreRecycleItem 

func (fs *Decomposedfs) RestoreRecycleItem(ctx context.Context, basePath, key, relativePath string, restoreRef *provider.Reference) error

RestoreRecycleItem restores the specified item.

func (*Decomposedfs) RestoreRevision 

func (fs *Decomposedfs) RestoreRevision(ctx context.Context, ref *provider.Reference, revisionKey string) (err error)

RestoreRevision restores the specified revision of the resource.

func (*Decomposedfs) SetArbitraryMetadata 

func (fs *Decomposedfs) SetArbitraryMetadata(ctx context.Context, ref *provider.Reference, md *provider.ArbitraryMetadata) (err error)

SetArbitraryMetadata sets the metadata on a resource.

func (*Decomposedfs) SetLock 

func (fs *Decomposedfs) SetLock(ctx context.Context, ref *provider.Reference, lock *provider.Lock) error

SetLock puts a lock on the given reference.

func (*Decomposedfs) Shutdown 

func (fs *Decomposedfs) Shutdown(ctx context.Context) error

Shutdown shuts down the storage.

func (*Decomposedfs) TouchFile 

func (fs *Decomposedfs) TouchFile(ctx context.Context, ref *provider.Reference) error

TouchFile as defined in the storage.FS interface.

func (*Decomposedfs) Unlock 

func (fs *Decomposedfs) Unlock(ctx context.Context, ref *provider.Reference, lock *provider.Lock) error

Unlock removes an existing lock from the given reference.

func (*Decomposedfs) UnsetArbitraryMetadata 

func (fs *Decomposedfs) UnsetArbitraryMetadata(ctx context.Context, ref *provider.Reference, keys []string) (err error)

UnsetArbitraryMetadata unsets the metadata on the given resource.

func (*Decomposedfs) UpdateGrant 

func (fs *Decomposedfs) UpdateGrant(ctx context.Context, ref *provider.Reference, g *provider.Grant) error

UpdateGrant updates a grant on a resource.

func (*Decomposedfs) UpdateStorageSpace 

func (fs *Decomposedfs) UpdateStorageSpace(ctx context.Context, req *provider.UpdateStorageSpaceRequest) (*provider.UpdateStorageSpaceResponse, error)

UpdateStorageSpace updates a storage space.

func (*Decomposedfs) Upload 

func (fs *Decomposedfs) Upload(ctx context.Context, ref *provider.Reference, r io.ReadCloser) (err error)

Upload uploads data to the given resource TODO Upload (and InitiateUpload) needs a way to receive the expected checksum. Maybe in metadata as 'checksum' => 'sha1 aeosvp45w5xaeoe' = lowercase, space separated?

func (*Decomposedfs) UseIn 

func (fs *Decomposedfs) UseIn(composer *tusd.StoreComposer)

UseIn tells the tus upload middleware which extensions it supports.

type Lookup 

type Lookup struct {
	Options *options.Options
}

Lookup implements transformations from filepath to node and back.

func (*Lookup) HomeNode 

func (lu *Lookup) HomeNode(ctx context.Context) (node *node.Node, err error)

HomeNode returns the home node of a user.

func (*Lookup) HomeOrRootNode 

func (lu *Lookup) HomeOrRootNode(ctx context.Context) (node *node.Node, err error)

HomeOrRootNode returns the users home node when home support is enabled. it returns the storages root node otherwise.

func (*Lookup) InternalPath 

func (lu *Lookup) InternalPath(id string) string

InternalPath returns the internal path for a given ID.

func (*Lookup) InternalRoot 

func (lu *Lookup) InternalRoot() string

InternalRoot returns the internal storage root directory.

func (*Lookup) NodeFromID 

func (lu *Lookup) NodeFromID(ctx context.Context, id *provider.ResourceId) (n *node.Node, err error)

NodeFromID returns the internal path for the id.

func (*Lookup) NodeFromPath 

func (lu *Lookup) NodeFromPath(ctx context.Context, fn string, followReferences bool) (*node.Node, error)

NodeFromPath converts a filename into a Node.

func (*Lookup) NodeFromResource 

func (lu *Lookup) NodeFromResource(ctx context.Context, ref *provider.Reference) (*node.Node, error)

NodeFromResource takes in a request path or request id and converts it to a Node.

func (*Lookup) Path 

func (lu *Lookup) Path(ctx context.Context, n *node.Node) (p string, err error)

Path returns the path for node.

func (*Lookup) RootNode 

func (lu *Lookup) RootNode(ctx context.Context) (*node.Node, error)

RootNode returns the root node of the storage.

func (*Lookup) ShareFolder 

func (lu *Lookup) ShareFolder() string

ShareFolder returns the internal storage root directory.

func (*Lookup) WalkPath 

func (lu *Lookup) WalkPath(ctx context.Context, r *node.Node, p string, followReferences bool, f func(ctx context.Context, n *node.Node) error) (*node.Node, error)

WalkPath calls n.Child(segment) on every path segment in p starting at the node r. If a function f is given it will be executed for every segment node, but not the root node r. If followReferences is given the current visited reference node is replaced by the referenced node.

type PermissionsChecker 

type PermissionsChecker interface {
	AssemblePermissions(ctx context.Context, n *node.Node) (ap provider.ResourcePermissions, err error)
	HasPermission(ctx context.Context, n *node.Node, check func(*provider.ResourcePermissions) bool) (can bool, err error)
}

PermissionsChecker defines an interface for checking permissions on a Node.

type Tree 

type Tree interface {
	Setup(owner *userpb.UserId, propagateToRoot bool) error

	GetMD(ctx context.Context, node *node.Node) (os.FileInfo, error)
	ListFolder(ctx context.Context, node *node.Node) ([]*node.Node, error)
	// CreateHome(owner *userpb.UserId) (n *node.Node, err error)
	CreateDir(ctx context.Context, node *node.Node) (err error)
	// CreateReference(ctx context.Context, node *node.Node, targetURI *url.URL) error
	Move(ctx context.Context, oldNode *node.Node, newNode *node.Node) (err error)
	Delete(ctx context.Context, node *node.Node) (err error)
	RestoreRecycleItemFunc(ctx context.Context, key, trashPath, restorePath string) (*node.Node, *node.Node, func() error, error) // FIXME REFERENCE use ref instead of path
	PurgeRecycleItemFunc(ctx context.Context, key, purgePath string) (*node.Node, func() error, error)

	WriteBlob(key string, reader io.Reader) error
	ReadBlob(key string) (io.ReadCloser, error)
	DeleteBlob(key string) error

	Propagate(ctx context.Context, node *node.Node) (err error)
}

Tree is used to manage a tree hierarchy.

Source Files

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