storage

package
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 Go to latest Published: Jun 3, 2019 License: MIT Imports: 10 Imported by: 4

Documentation

Overview

Package storage provides the file info storage system.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Directory 

type Directory struct {
	Name   string
	Size   int64
	Hash   string
	INodes []INode
	// contains filtered or unexported fields
}

func DirectoryFromBytes 

func DirectoryFromBytes(data []byte) (*Directory, error)

func NewDirectory 

func NewDirectory(name string) *Directory

func (Directory) AddSea 

func (d Directory) AddSea(p, name, hash string, sea *FragmentSea) error

Add Fragment stored sea

func (*Directory) CreateDirectory 

func (d *Directory) CreateDirectory(p string) (*Directory, error)

Target directories recursively If there is the same Name file exists, it will return error. Else, it will return the pointer of the determination directory INode.

func (*Directory) CreateFile 

func (d *Directory) CreateFile(p, name, hash, keyHash string, size int64, fragments []*Fragment) error

Store the file into the path.

func (*Directory) DeleteDirectory 

func (d *Directory) DeleteDirectory(p, name string, userOrGroup, shared bool) (seaOperations map[string][]*sea.Operation, keyUsed map[string]int, err error)

Delete iNode of the directory finding by the path.

func (*Directory) DeleteDirectoryKey 

func (d *Directory) DeleteDirectoryKey() map[string]int

Delete directory Key.

func (*Directory) DeleteFile 

func (d *Directory) DeleteFile(p, name string, userOrGroup, shared bool) (map[string][]*sea.Operation, string, error)

Delete the file finding by the Name under the path.

func (*Directory) GenerateSeaOperations 

func (d *Directory) GenerateSeaOperations(action uint, shared bool) map[string][]*sea.Operation

func (*Directory) GetHash 

func (d *Directory) GetHash() string

func (*Directory) GetKeys 

func (d *Directory) GetKeys() []string

func (*Directory) GetName 

func (d *Directory) GetName() string

func (*Directory) GetSize 

func (d *Directory) GetSize() int64

func (*Directory) List 

func (d *Directory) List(p string) ([]INodeInfo, error)

List information of INodes in the path.

func (*Directory) Move 

func (d *Directory) Move(p, name, newPath string) error

Move File or Directory to new path

func (*Directory) ToBytes 

func (d *Directory) ToBytes() []byte

func (*Directory) ToJson 

func (d *Directory) ToJson() string

func (*Directory) UpdateFileData 

func (d *Directory) UpdateFileData(p, name, hash string, size int64, fragments []*Fragment, userOrGroup, shared bool) (map[string][]*sea.Operation, error)

Update the data of file finding by the filename and the path of file.

func (*Directory) UpdateFileKey 

func (d *Directory) UpdateFileKey(p, name, keyIndex, hash string, size int64, fragments []*Fragment, userOrGroup, shared bool) (map[string]int, map[string][]*sea.Operation, error)

Update the Key of file

func (*Directory) UpdateName 

func (d *Directory) UpdateName(p, name, newName string) error

Update the Name of directory finding by the path.

type File 

type File struct {
	Name      string
	Size      int64
	Hash      string
	KeyIndex  string
	Fragments []*Fragment
	// contains filtered or unexported fields
}

func FileFromBytes 

func FileFromBytes(data []byte) (*File, error)

func NewFile 

func NewFile(name string, size int64, hash string, key string, fragments []*Fragment) *File

func (*File) GenerateSeaOperations 

func (f *File) GenerateSeaOperations(action uint, shared bool) map[string][]*sea.Operation

func (*File) GetHash 

func (f *File) GetHash() string

func (*File) GetKeys 

func (f *File) GetKeys() []string

func (*File) GetName 

func (f *File) GetName() string

func (*File) GetSize 

func (f *File) GetSize() int64

func (*File) ToBytes 

func (f *File) ToBytes() []byte

func (*File) ToJson 

func (f *File) ToJson() string

type FileInfo 

type FileInfo struct {
	Name      string
	Size      int64
	Hash      string
	Key       string
	Fragments []*Fragment
}

FileInfo is the information of files for usage.

func NewFileInfo 

func NewFileInfo(name string, size int64, hash string, key string, fragments []*Fragment) *FileInfo

NewFileInfo is the construct for FileInfo.

type FileKey 

type FileKey struct {
	Index     string
	Used      int
	Key       string
	Published bool
}

FileKey store the information of key used to encrypt file.

type FileKeyMap 

type FileKeyMap struct {
	Keys []*FileKey
}

FileKeyMap provides file keys manage.

func NewFileKeyMap 

func NewFileKeyMap() *FileKeyMap

NewFileKeyMap is the construct for FileKeyMap.

func (*FileKeyMap) AddKey 

func (fkm *FileKeyMap) AddKey(key string, used bool) string

AddKey add new information of key. If used, the used count of key will be 1. Else, it will be 0.

func (*FileKeyMap) GetKey 

func (fkm *FileKeyMap) GetKey(index string) *FileKey

GetKey search the FileKey by index. If it exists, it will be return. Else, returns nil.

func (*FileKeyMap) PublishKey 

func (fkm *FileKeyMap) PublishKey(publicKey, keyIndex, key string) error

PublishKey check key whether valid and publish it.

func (*FileKeyMap) UpdateKeyUsed 

func (fkm *FileKeyMap) UpdateKeyUsed(keyUsed map[string]int)

UpdateKeyUsed update used count of keys by index and count.

type Fragment 

type Fragment struct {
	Hash string
	Size int64
	Seas []*FragmentSea
}

func NewFragment 

func NewFragment(hash string, seas []*FragmentSea) *Fragment

type FragmentSea 

type FragmentSea struct {
	Address   string
	PublicKey string
	Weight    int8
	Timestamp time.Time
}

func NewFragmentSea 

func NewFragmentSea(address, publicKey string, timestamp time.Time) *FragmentSea

type INode 

type INode interface {
	GetName() string
	GetSize() int64
	GetHash() string
	GenerateSeaOperations(action uint, shared bool) map[string][]*sea.Operation
	GetKeys() []string
	ToBytes() []byte
	ToJson() string
	// contains filtered or unexported methods
}

type INodeInfo 

type INodeInfo struct {
	IsDir bool
	Name  string
	Size  int64
}

type Root 

type Root struct {
	Home   *Directory
	Shared *Directory
	Keys   *FileKeyMap
}

Root store information of files and Keys used to encryption. Store the information of private files in 'Home' directory. Store the information of shared files in 'Shared' directory.

func GenerateRoot 

func GenerateRoot() *Root

GenerateRoot generate new root for usage.

func NewRoot 

func NewRoot(home, share *Directory, keyMap *FileKeyMap) *Root

NewRoot is the construct for Root.

func RootFromBytes 

func RootFromBytes(data []byte) (*Root, error)

RootFromBytes convert root from byte slice.

func (*Root) AddSea 

func (root *Root) AddSea(p, name, hash string, sea *FragmentSea) error

AddSea add fragment stored sea's information to its file.

func (*Root) CreateDirectory 

func (root *Root) CreateDirectory(p string) error

CreateDirectory create directory in the path.

func (*Root) CreateFile 

func (root *Root) CreateFile(p string, info FileInfo) error

CreateFile generate file in the path and store its information.

func (*Root) DeleteDirectory 

func (root *Root) DeleteDirectory(p, name string, userOrGroup bool) (map[string][]*sea.Operation, error)

DeleteDirectory delete directory and files in it.

func (*Root) DeleteFile 

func (root *Root) DeleteFile(p, name string, userOrGroup bool) (map[string][]*sea.Operation, error)

DeleteFile delete file in the path.

func (*Root) GetDirectory 

func (root *Root) GetDirectory(p string) (dir *Directory, err error)

GetDirectory returns the information of directory.

func (*Root) GetFile 

func (root *Root) GetFile(p, name string) (file FileInfo, err error)

GetFile returns the information of file.

func (*Root) GetINode 

func (root *Root) GetINode(p, name string) (INode, error)

GetINode returns the information of iNode.

func (*Root) GetSharedDirectory 

func (root *Root) GetSharedDirectory(p string) (dir *Directory, err error)

GetSharedDirectory returns the information of directory in the 'shared' directory.

func (*Root) GetSharedFile 

func (root *Root) GetSharedFile(p, name string) (file FileInfo, err error)

GetSharedFile returns the information of file in the 'shared' directory.

func (*Root) GetSharedINode 

func (root *Root) GetSharedINode(p, name string) (INode, error)

GetSharedINode returns the information of iNode in the 'shared' directory.

func (*Root) ListDirectory 

func (root *Root) ListDirectory(p string) (iNodes []INodeInfo, err error)

ListDirectory list the information of iNodes in the directory.

func (*Root) ListSharedDirectory 

func (root *Root) ListSharedDirectory(p string) (iNodes []INodeInfo, err error)

ListSharedDirectory list the information of iNodes in the 'shared' directory.

func (*Root) Move 

func (root *Root) Move(p, name, newPath string) error

Move change the iNode parent path to new path.

func (*Root) PublishKey 

func (root *Root) PublishKey(publicKey, keyIndex, key string) error

PublishKey publish the key encrypted by public key.

func (*Root) ShareFiles 

func (root *Root) ShareFiles(p, name, dst string, userOrGroup bool) (map[string][]*sea.Operation, []string, error)

ShareFiles copy the information of file to 'shared' directory.

func (*Root) ToBytes 

func (root *Root) ToBytes() []byte

ToBytes convert root to byte slice.

func (*Root) UpdateFileData 

func (root *Root) UpdateFileData(p string, info FileInfo, userOrGroup bool) (map[string][]*sea.Operation, error)

UpdateFileData change the information of file.

func (*Root) UpdateFileKey 

func (root *Root) UpdateFileKey(p string, info FileInfo, userOrGroup bool) (map[string][]*sea.Operation, error)

UpdateFileKey change the encryption key of file and its information.

func (*Root) UpdateName 

func (root *Root) UpdateName(p, name, newName string) error

UpdateName change the target iNode's name to new name.

Source Files

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