poifs

package
v0.0.0-...-327edbf Latest Latest
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 Go to latest Published: Jan 24, 2018 License: Apache-2.0 Imports: 14 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	SIGNATURE              uint64 = 0xE11AB1A1E011CFD0
	SMALLER_BIG_BLOCK_SIZE        = 0x0200

	LARGER_BIG_BLOCK_SIZE = 0x1000

	SMALL_BLOCK_SIZE = 0x0040
	PROPERTY_SIZE    = 0x0080 //How big single property is
	/**
	 * The minimum size of a document before it's stored using
	 *  Big Blocks (normal streams). Smaller documents go in the
	 *  Mini Stream (SBAT / Small Blocks)
	 */
	BIG_BLOCK_MINIMUM_DOCUMENT_SIZE = 0x1000
	/** The highest sector number you're allowed, 0xFFFFFFFA */
	LARGEST_REGULAR_SECTOR_NUMBER = -5

	/** Indicates the sector holds a DIFAT block (0xFFFFFFFC) */
	DIFAT_SECTOR_BLOCK = -4
	/** Indicates the sector holds a FAT block (0xFFFFFFFD) */
	FAT_SECTOR_BLOCK = -3
	/** Indicates the sector is the end of a chain (0xFFFFFFFE) */
	END_OF_CHAIN = -2
	/** Indicates the sector is not used (0xFFFFFFFF) */
	UNUSED_BLOCK = -1
)
View Source 
const (
	BYTE_SIZE   = 1
	SHORT_SIZE  = 2
	INT_SIZE    = 4
	LONG_SIZE   = 8
	DOUBLE_SIZE = 8
)
View Source 
const (
	PROPERTY_TYPE_OFFSET int = 0x42
	DIRECTORY_TYPE           = 1
	DOCUMENT_TYPE            = 2
	ROOT_TYPE                = 5
)
View Source 
const (
	BLOCK_SHIFT = 6

	BLOCK_MASK      = _block_size - 1
	MAX_BLOCK_COUNT = 65535
)

Variables

View Source 
var (
	INVALID_FILE_FORMAT = errors.New("Not a valid compound file")
	READ_ERROR          = errors.New("Error reading compound file")
	OOXML_FILE_FORMAT   = errors.New("The supplied data appears to be in the Office 2007+ XML.")
	BLOCK_ERROR         = errors.New("Unable to read Data Block")
	EMPTY_BLOCK_ERROR   = errors.New("Can not return empty data")

	SMALLER_BIG_BLOCK_SIZE_DETAILS = NewBigBlockSize(SMALLER_BIG_BLOCK_SIZE, 9)
	LARGER_BIG_BLOCK_SIZE_DETAILS  = NewBigBlockSize(LARGER_BIG_BLOCK_SIZE, 12)
	/** The first 4 bytes of an OOXML file, used in detection */
	OOXML_FILE_HEADER = [4]byte{0x50, 0x4B, 0x03, 0x04}
)
View Source 
var (
	CLOSED_STREAM_ERROR = errors.New("cannot perform requested operation on a closed stream")
)

Functions

func NewSmallDocumentBlock 

func NewSmallDocumentBlock(bigBlockSize POIFSBigBlockSize) *smallDocumentBlock

func RawDataBlock 

func RawDataBlock(r io.Reader, blocksize int) *rawDataBlock

func RawDataBlockList 

func RawDataBlockList(r io.Reader, bigBlockSize POIFSBigBlockSize) (*rawDataBlockList, error)

func SmallDocBlockFromDataBlock 

func SmallDocBlockFromDataBlock(bigBlockSize POIFSBigBlockSize, store []BlockWritable, size int) []*smallDocumentBlock

func SmallDocBlockFromRaw 

func SmallDocBlockFromRaw(bigBlockSize POIFSBigBlockSize, blocks []ListManagedBlock) []*smallDocumentBlock

func SmallDocumentBlock 

func SmallDocumentBlock(bigBlockSize POIFSBigBlockSize, data []byte, index int) *smallDocumentBlock

func SmallDocumentBlockFill 

func SmallDocumentBlockFill(bigBlockSize POIFSBigBlockSize, blocks *[]BlockWritable) int

func SmallDocumentBlockList 

func SmallDocumentBlockList(blocks []*smallDocumentBlock) (*smallDocumentBlockList, error)

Types

type BATBlock 

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

func CreateBATBlock 

func CreateBATBlock(bigBlockSize POIFSBigBlockSize, data bytes.Buffer) *BATBlock

func CreateBATBlocks 

func CreateBATBlocks(bigBlockSize POIFSBigBlockSize, entries []int) []*BATBlock

func CreateEmptyBATBlock 

func CreateEmptyBATBlock(bigBlockSize POIFSBigBlockSize, isXBAT bool) *BATBlock

func CreateXBATBlocks 

func CreateXBATBlocks(bigBlockSize POIFSBigBlockSize, entries []int, startBlock int) []*BATBlock

func NewBATBlock 

func NewBATBlock(bigBlockSize POIFSBigBlockSize) *BATBlock

Create a single instance initialized with default values

func NewBATBlockWithEntries 

func NewBATBlockWithEntries(bigBlockSize POIFSBigBlockSize, entries []int, start_index, end_index int) *BATBlock

Create a single instance initialized (perhaps partially) with entries

func (*BATBlock) GetOutBlockIndex 

func (bb *BATBlock) GetOutBlockIndex() int

func (*BATBlock) GetValueAt 

func (bb *BATBlock) GetValueAt(offset int) (int, error)

func (*BATBlock) HasFreeSectors 

func (bb *BATBlock) HasFreeSectors() bool

func (*BATBlock) SetOurBlockIndex 

func (bb *BATBlock) SetOurBlockIndex(index int)

func (*BATBlock) SetValueAt 

func (bb *BATBlock) SetValueAt(offset, val int) error

func (*BATBlock) WriteBlocks 

func (bb *BATBlock) WriteBlocks(w io.Writer) error

type BATBlockAndIndex 

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

func GetBATBlockAndIndex 

func GetBATBlockAndIndex(offset int, header HeaderBlock, bats []*BATBlock) *BATBlockAndIndex

*

  • Returns the BATBlock that handles the specified offset,
  • and the relative index within it, for the mini stream.
  • The List of BATBlocks must be in sequential order

func GetSBATBlockAndIndex 

func GetSBATBlockAndIndex(offset int, header HeaderBlock, bats []*BATBlock) *BATBlockAndIndex

func (*BATBlockAndIndex) GetBlock 

func (bi *BATBlockAndIndex) GetBlock() *BATBlock

func (*BATBlockAndIndex) GetIndex 

func (bi *BATBlockAndIndex) GetIndex() int

type BATManaged 

type BATManaged interface {
	CountBlocks() int
	SetStartBlock(index int)
}

type BlockAllocationTableReader 

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

func NewBlockAllocationTableReader 

func NewBlockAllocationTableReader(bigBlockSize POIFSBigBlockSize, block_count int, block_array []int,
	xbat_count, xbat_index int, raw_blocklist BlockList) (*BlockAllocationTableReader, error)

func NewBlockAllocationTableReader1 

func NewBlockAllocationTableReader1(bigBlockSize POIFSBigBlockSize,
	blocks []ListManagedBlock, raw_blocklist BlockList) (*BlockAllocationTableReader, error)

type BlockAllocationTableWriter 

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

func NewBlockAllocationTableWriter 

func NewBlockAllocationTableWriter(bigBlockSize POIFSBigBlockSize) *BlockAllocationTableWriter

func (*BlockAllocationTableWriter) CountBlocks 

func (b *BlockAllocationTableWriter) CountBlocks() int

func (*BlockAllocationTableWriter) CreateBlocks 

func (b *BlockAllocationTableWriter) CreateBlocks() int

func (*BlockAllocationTableWriter) GetStartBlock 

func (b *BlockAllocationTableWriter) GetStartBlock() int

func (*BlockAllocationTableWriter) SetStartBlock 

func (b *BlockAllocationTableWriter) SetStartBlock(start_block int)

func (*BlockAllocationTableWriter) WriteBlocks 

func (b *BlockAllocationTableWriter) WriteBlocks(stream io.Writer) error

type BlockList 

type BlockList interface {
	Zap(index int)
	Remove(index int) (ListManagedBlock, error)
	Fetch(startBlock, headerPropertiesStartBlock int) ([]ListManagedBlock, error)
	SetBAT(bat *BlockAllocationTableReader) error
	BlockCount() int
}

func GetSmallDocumentBlocks 

func GetSmallDocumentBlocks(bigBlockSize POIFSBigBlockSize, blockList *rawDataBlockList, root *RootProperty,
	sbatStart int) (BlockList, error)

type BlockWritable 

type BlockWritable interface {
	WriteBlocks(w io.Writer) error
}

func NewPropertyBlockArray 

func NewPropertyBlockArray(bigBlockSize POIFSBigBlockSize, props []IProperty) []BlockWritable

* Create an array of PropertyBlocks from an array of Property * instances, creating empty Property instances to make up any * shortfall

type ByteField 

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

func NewByteField 

func NewByteField(offset int, value byte, data []byte) (*ByteField, error)

func NewByteFieldFromBytes 

func NewByteFieldFromBytes(offset int, data []byte) (*ByteField, error)

func NewByteFieldWithOffset 

func NewByteFieldWithOffset(offset int) (*ByteField, error)

func NewByteFieldWithVal 

func NewByteFieldWithVal(offset int, value byte) (*ByteField, error)

func (*ByteField) ReadFromBytes 

func (f *ByteField) ReadFromBytes(data []byte)

func (*ByteField) Set 

func (f *ByteField) Set(val byte, data []byte)

func (*ByteField) String 

func (f *ByteField) String() string

func (*ByteField) WriteToBytes 

func (f *ByteField) WriteToBytes(data []byte)

type Child 

type Child interface {
	GetNextChild() Child
	GetPreviousChild() Child
	SetPreviousChild(child Child)
	SetNextChild(child Child)
}

type ClassID 

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

func ClassIDFromBytes 

func ClassIDFromBytes(src []byte, offset int) ClassID

func ClassIDFromString 

func ClassIDFromString(str string) (ClassID, error)

func NewClassID 

func NewClassID() ClassID

func (*ClassID) Read 

func (cid *ClassID) Read(src []byte, offset int) []byte

func (*ClassID) SetBytes 

func (cid *ClassID) SetBytes(bytes []byte)

func (*ClassID) String 

func (cid *ClassID) String() string

func (*ClassID) Write 

func (cid *ClassID) Write(dst []byte, offset int) error

type Comparator 

type Comparator func(p1, p2 IProperty) int

returns negative if p1 < p2 zero if p1 == p2 positive if p1 > p2

type DataInputBlock 

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

func GetDataInputBlockFromDocumentBlocks 

func GetDataInputBlockFromDocumentBlocks(blocks []*DocumentBlock, offset int) *DataInputBlock

func GetDataInputBlockFromSmallBlocks 

func GetDataInputBlockFromSmallBlocks(blocks []*smallDocumentBlock, offset int) *DataInputBlock

func NewDataInputBlock 

func NewDataInputBlock(data []byte, startOffset int) *DataInputBlock

func (*DataInputBlock) Available 

func (d *DataInputBlock) Available() int

func (*DataInputBlock) ReadFully 

func (d *DataInputBlock) ReadFully(buf []byte, offset, length int)

func (*DataInputBlock) ReadIntLE 

func (d *DataInputBlock) ReadIntLE() int

func (*DataInputBlock) ReadIntLE2 

func (d *DataInputBlock) ReadIntLE2(prevBlock *DataInputBlock, prevBlockAvailable int) int

func (*DataInputBlock) ReadUByte 

func (d *DataInputBlock) ReadUByte() int

func (*DataInputBlock) ReadUShortLE 

func (d *DataInputBlock) ReadUShortLE() int

func (*DataInputBlock) ReadUShortLE2 

func (d *DataInputBlock) ReadUShortLE2(prevBlock *DataInputBlock) int

Reads a short which spans the end of prevBlock

type DirectoryEntry 

type DirectoryEntry interface {
	Entry
	Entries() []Entry
	IsEmpty() bool
	EntryCount() int
	HasEntry(name string) bool
	Entry(name string) (Entry, error)
	StorageClsId() ClassID
	SetStorageClsId(cid ClassID)
	//CreateDocument(name string, stream []byte) DocumentEntry
	CreateDocument(name string, r io.Reader) DocumentEntry
	CreateDirectory(name string) DirectoryEntry
}

type DirectoryNode 

type DirectoryNode struct {
	*EntryNode
	// contains filtered or unexported fields
}

func NewDirectoryNode 

func NewDirectoryNode(prop ParentProperty, fs *POIFSFileSystem, parent *DirectoryNode) (*DirectoryNode, error)

func (*DirectoryNode) ChangeName 

func (dn *DirectoryNode) ChangeName(oldName, newName string) bool

func (*DirectoryNode) CreateDirectory 

func (dn *DirectoryNode) CreateDirectory(name string) DirectoryEntry

func (*DirectoryNode) CreateDocument 

func (dn *DirectoryNode) CreateDocument(name string, stream io.Reader) DocumentEntry

func (dn *DirectoryNode) CreateDocument(name string, stream []byte) DocumentEntry {

func (*DirectoryNode) DeleteEntry 

func (dn *DirectoryNode) DeleteEntry(entry *EntryNode) bool

func (*DirectoryNode) Entries 

func (dn *DirectoryNode) Entries() []Entry

func (*DirectoryNode) Entry 

func (dn *DirectoryNode) Entry(name string) (Entry, error)

func (*DirectoryNode) EntryCount 

func (dn *DirectoryNode) EntryCount() int

func (*DirectoryNode) GetFileSystem 

func (dn *DirectoryNode) GetFileSystem() *POIFSFileSystem

func (*DirectoryNode) GetPath 

func (dn *DirectoryNode) GetPath() *POIFSDocumentPath

func (*DirectoryNode) HasEntry 

func (dn *DirectoryNode) HasEntry(name string) bool

func (*DirectoryNode) IsDeleteOK 

func (dn *DirectoryNode) IsDeleteOK() bool

func (*DirectoryNode) IsDirectory 

func (dn *DirectoryNode) IsDirectory() bool

func (*DirectoryNode) IsEmpty 

func (dn *DirectoryNode) IsEmpty() bool

func (*DirectoryNode) SetStorageClsId 

func (dn *DirectoryNode) SetStorageClsId(cid ClassID)

func (*DirectoryNode) StorageClsId 

func (dn *DirectoryNode) StorageClsId() ClassID

type DirectoryProperty 

type DirectoryProperty struct {
	*Property
	// contains filtered or unexported fields
}

func NewDirProperty 

func NewDirProperty(name string) *DirectoryProperty

func NewDirPropertyFromData 

func NewDirPropertyFromData(index int, array []byte, offset int) *DirectoryProperty

func (*DirectoryProperty) AddChild 

func (doc *DirectoryProperty) AddChild(prop IProperty) error

func (*DirectoryProperty) ChangeName 

func (doc *DirectoryProperty) ChangeName(prop IProperty, newName string) bool

func (*DirectoryProperty) DelChild 

func (doc *DirectoryProperty) DelChild(prop IProperty) bool

func (*DirectoryProperty) GetChildren 

func (doc *DirectoryProperty) GetChildren() []IProperty

func (*DirectoryProperty) IsDirectory 

func (doc *DirectoryProperty) IsDirectory() bool

func (*DirectoryProperty) PreWrite 

func (doc *DirectoryProperty) PreWrite()

type DocumentBlock 

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

func DocumentBlockFromRawBlock 

func DocumentBlockFromRawBlock(block *rawDataBlock) (*DocumentBlock, error)

func DocumentBlockFromStream 

func DocumentBlockFromStream(r io.Reader, bigBlockSize POIFSBigBlockSize) (db *DocumentBlock, err error)

func DocumentBlockFromStream(data []byte, bigBlockSize POIFSBigBlockSize) (*DocumentBlock, error) {

func (*DocumentBlock) PartiallyRead 

func (db *DocumentBlock) PartiallyRead() bool

func (*DocumentBlock) Size 

func (db *DocumentBlock) Size() int

func (*DocumentBlock) WriteBlocks 

func (db *DocumentBlock) WriteBlocks(w io.Writer) error

func (*DocumentBlock) WriteData 

func (db *DocumentBlock) WriteData(w io.Writer) error

type DocumentEntry 

type DocumentEntry interface {
	Entry
	GetSize() int
}

type DocumentInputStream 

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

func NewDocInputStream 

func NewDocInputStream(doc *POIFSDocument) *DocumentInputStream

func NewDocInputStreamFromDocNode 

func NewDocInputStreamFromDocNode(doc *DocumentNode) *DocumentInputStream

func NewDocInputStreamFromEntry 

func NewDocInputStreamFromEntry(entry DocumentEntry) *DocumentInputStream

func (*DocumentInputStream) Available 

func (d *DocumentInputStream) Available() int

func (*DocumentInputStream) Close 

func (d *DocumentInputStream) Close()

func (*DocumentInputStream) GetDataInputBlock 

func (d *DocumentInputStream) GetDataInputBlock(offset int) *DataInputBlock

func (*DocumentInputStream) Mark 

func (d *DocumentInputStream) Mark(ignoreReadLimit int)

func (*DocumentInputStream) Read 

func (d *DocumentInputStream) Read(p []byte) (n int, err error)

func (*DocumentInputStream) Reset 

func (d *DocumentInputStream) Reset()

type DocumentNode 

type DocumentNode struct {
	*EntryNode
	// contains filtered or unexported fields
}

func NewDocumentNode 

func NewDocumentNode(prop *DocumentProperty, parent *DirectoryNode) *DocumentNode

func (*DocumentNode) GetDocument 

func (dn *DocumentNode) GetDocument() *POIFSDocument

func (*DocumentNode) GetSize 

func (dn *DocumentNode) GetSize() int

func (*DocumentNode) IsDeleteOK 

func (dn *DocumentNode) IsDeleteOK() bool

func (*DocumentNode) IsDocument 

func (dn *DocumentNode) IsDocument() bool

type DocumentProperty 

type DocumentProperty struct {
	*Property
	// contains filtered or unexported fields
}

func NewDocProperty 

func NewDocProperty(name string, size int) *DocumentProperty

func NewDocPropertyFromData 

func NewDocPropertyFromData(index int, array []byte, offset int) *DocumentProperty

func (*DocumentProperty) IsDirectory 

func (doc *DocumentProperty) IsDirectory() bool

func (*DocumentProperty) PreWrite 

func (doc *DocumentProperty) PreWrite()

func (*DocumentProperty) SetDocument 

func (doc *DocumentProperty) SetDocument(d *POIFSDocument)

func (*DocumentProperty) ShouldUseSmallBlocks 

func (doc *DocumentProperty) ShouldUseSmallBlocks() bool

type Entry 

type Entry interface {
	GetName() string
	IsDirectory() bool
	IsDocument() bool
	Parent() DirectoryEntry
	Delete() bool
	RenameTo(newName string) bool
}

type EntryNode 

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

func NewEntryNode 

func NewEntryNode(prop IProperty, parent *DirectoryNode) *EntryNode

func (*EntryNode) Delete 

func (en *EntryNode) Delete() bool

func (*EntryNode) GetName 

func (en *EntryNode) GetName() string

func (*EntryNode) GetProperty 

func (en *EntryNode) GetProperty() IProperty

func (*EntryNode) IsDeleteOK 

func (en *EntryNode) IsDeleteOK() bool

func (*EntryNode) IsDirectory 

func (en *EntryNode) IsDirectory() bool

func (*EntryNode) IsDocument 

func (en *EntryNode) IsDocument() bool

func (*EntryNode) IsRoot 

func (en *EntryNode) IsRoot() bool

func (*EntryNode) Parent 

func (en *EntryNode) Parent() DirectoryEntry

func (*EntryNode) RenameTo 

func (en *EntryNode) RenameTo(newName string) bool

type FixedField 

type FixedField interface {
	ReadFromBytes(data []byte)
	WriteToBytes(data []byte)
	String() string
}

type HeaderBlock 

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

func NewHeaderBlock 

func NewHeaderBlock(bigBlockSize POIFSBigBlockSize) *HeaderBlock

Create Header Block initialized with default values

func NewHeaderBlockFromReader 

func NewHeaderBlockFromReader(r io.Reader) (*HeaderBlock, error)

func (*HeaderBlock) GetBATArray 

func (hb *HeaderBlock) GetBATArray() []int

func (*HeaderBlock) GetBATCount 

func (hb *HeaderBlock) GetBATCount() int

func (*HeaderBlock) GetBigBlockSize 

func (hb *HeaderBlock) GetBigBlockSize() POIFSBigBlockSize

func (*HeaderBlock) GetPropertyStart 

func (hb *HeaderBlock) GetPropertyStart() int

func (*HeaderBlock) GetSBATCount 

func (hb *HeaderBlock) GetSBATCount() int

func (*HeaderBlock) GetSBATStart 

func (hb *HeaderBlock) GetSBATStart() int

return start of small block (MiniFAT) allocation table

func (*HeaderBlock) GetXBATCount 

func (hb *HeaderBlock) GetXBATCount() int

func (*HeaderBlock) GetXBATIndex 

func (hb *HeaderBlock) GetXBATIndex() int

func (*HeaderBlock) SetBATCount 

func (hb *HeaderBlock) SetBATCount(count int)

func (*HeaderBlock) SetPropertyStart 

func (hb *HeaderBlock) SetPropertyStart(startBlock int)

func (*HeaderBlock) SetSBATBlockCount 

func (hb *HeaderBlock) SetSBATBlockCount(count int)

func (*HeaderBlock) SetSBATStart 

func (hb *HeaderBlock) SetSBATStart(startBlock int)

func (*HeaderBlock) SetXBATCount 

func (hb *HeaderBlock) SetXBATCount(count int)

func (*HeaderBlock) SetXBATStart 

func (hb *HeaderBlock) SetXBATStart(sb int)

func (*HeaderBlock) WriteData 

func (hb *HeaderBlock) WriteData(w io.Writer) error

type HeaderBlockWriter 

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

func NewHeaderBlockWriter 

func NewHeaderBlockWriter(bigBlockSize POIFSBigBlockSize) *HeaderBlockWriter

func NewHeaderBlockWriterFromHeaderBlock 

func NewHeaderBlockWriterFromHeaderBlock(hb *HeaderBlock) *HeaderBlockWriter

func (*HeaderBlockWriter) SetBATBlocks 

func (w *HeaderBlockWriter) SetBATBlocks(blockCount, startBlock int) []*BATBlock

func (*HeaderBlockWriter) SetPropertyStart 

func (w *HeaderBlockWriter) SetPropertyStart(startBlock int)

func (*HeaderBlockWriter) SetSBATBlockCount 

func (w *HeaderBlockWriter) SetSBATBlockCount(count int)

func (*HeaderBlockWriter) SetSBATStart 

func (w *HeaderBlockWriter) SetSBATStart(startBlock int)

func (*HeaderBlockWriter) WriteBlock 

func (w *HeaderBlockWriter) WriteBlock(block *bytes.Buffer)

func (*HeaderBlockWriter) WriteBlocks 

func (w *HeaderBlockWriter) WriteBlocks(stream io.Writer) error

type IProperty 

type IProperty interface {
	Child
	GetSize() int
	SetSize(size int)
	SetNodeColor(nodeColor byte)
	SetPropertyType(propertyType byte)
	SetStartBlock(startBlock int)
	IsDirectory() bool
	GetName() string
	SetName(name string)
	GetPrevChildIndex() int
	GetNextChildIndex() int
	ChildIndex() int
	GetStorageClsid() ClassID
	SetStorageClsid(cid ClassID)
	GetStartBlock() int
	UseSmallBlocks() bool
	SetIndex(index int)
	WriteData(w io.Writer) error
	PreWrite()
	SetChildProperty(child int)
	GetIndex() int
}

type IntegerField 

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

func NewIntegerField 

func NewIntegerField(offset, value int, data []byte) (*IntegerField, error)

func NewIntegerFieldFromBytes 

func NewIntegerFieldFromBytes(offset int, data []byte) (*IntegerField, error)

func NewIntegerFieldWithOffset 

func NewIntegerFieldWithOffset(offset int) (*IntegerField, error)

func NewIntegerFieldWithVal 

func NewIntegerFieldWithVal(offset, value int) (*IntegerField, error)

func (*IntegerField) ReadFromBytes 

func (f *IntegerField) ReadFromBytes(data []byte)

func (*IntegerField) Set 

func (f *IntegerField) Set(val int, data []byte)

func (*IntegerField) String 

func (f *IntegerField) String() string

func (*IntegerField) WriteToBytes 

func (f *IntegerField) WriteToBytes(data []byte)

type Iterator 

type Iterator interface {
	HasNext() bool
	Next() interface{}
}

type ListManagedBlock 

type ListManagedBlock interface {
	Data() ([]byte, error)
}

type POIFSBigBlockSize 

type POIFSBigBlockSize struct {
	BigBlockSize int
	HeaderValue  int16
}

func NewBigBlockSize 

func NewBigBlockSize(blocksize int, headval int16) POIFSBigBlockSize

func (POIFSBigBlockSize) BATEntriesPerBlock 

func (b POIFSBigBlockSize) BATEntriesPerBlock() int

func (POIFSBigBlockSize) NextXBATChainOffset 

func (b POIFSBigBlockSize) NextXBATChainOffset() int

func (POIFSBigBlockSize) PropertiesPerBlock 

func (b POIFSBigBlockSize) PropertiesPerBlock() int

func (POIFSBigBlockSize) XBATEntriesPerBlock 

func (b POIFSBigBlockSize) XBATEntriesPerBlock() int

type POIFSDocument 

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

func NewPOIFSDocFromManagedBlock 

func NewPOIFSDocFromManagedBlock(name string, bigBlockSize POIFSBigBlockSize, blocks []ListManagedBlock, length int) *POIFSDocument

func NewPOIFSDocFromManagedBlock2 

func NewPOIFSDocFromManagedBlock2(name string, blocks []ListManagedBlock, length int) *POIFSDocument

func NewPOIFSDocFromRaw 

func NewPOIFSDocFromRaw(name string, blocks []*rawDataBlock, length int) *POIFSDocument

func NewPOIFSDocFromSmallBlocks 

func NewPOIFSDocFromSmallBlocks(name string, blocks []*smallDocumentBlock, length int) *POIFSDocument

func NewPOIFSDocFromStream 

func NewPOIFSDocFromStream(name string, r io.Reader) (*POIFSDocument, error)

func NewPOIFSDocFromStream(name string, data []byte) (*POIFSDocument, error) {

func NewPOIFSDocFromStream2 

func NewPOIFSDocFromStream2(name string, bigBlockSize POIFSBigBlockSize, r io.Reader) (*POIFSDocument, error)

func NewPOIFSDocFromStream2(name string, bigBlockSize POIFSBigBlockSize, data []byte) (*POIFSDocument, error) {

func (*POIFSDocument) CountBlocks 

func (d *POIFSDocument) CountBlocks() int

func (*POIFSDocument) GetDataInputBlock 

func (d *POIFSDocument) GetDataInputBlock(offset int) *DataInputBlock

func (*POIFSDocument) GetDocumentProperty 

func (d *POIFSDocument) GetDocumentProperty() *DocumentProperty

func (*POIFSDocument) GetSmallBlocks 

func (d *POIFSDocument) GetSmallBlocks() []BlockWritable

func (*POIFSDocument) SetStartBlock 

func (d *POIFSDocument) SetStartBlock(index int)

func (*POIFSDocument) WriteBlocks 

func (d *POIFSDocument) WriteBlocks(w io.Writer) error

type POIFSDocumentPath 

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

func AddPathToPOIFSDocumentPath 

func AddPathToPOIFSDocumentPath(path *POIFSDocumentPath, components []string) (*POIFSDocumentPath, error)

func CreatePOIFSDocumentPath 

func CreatePOIFSDocumentPath() (*POIFSDocumentPath, error)

func NewPOIFSDocumentPath 

func NewPOIFSDocumentPath(components []string) (*POIFSDocumentPath, error)

func (*POIFSDocumentPath) GetComponent 

func (dp *POIFSDocumentPath) GetComponent(n int) string

func (*POIFSDocumentPath) GetParent 

func (dp *POIFSDocumentPath) GetParent() *POIFSDocumentPath

func (*POIFSDocumentPath) Hashcode 

func (dp *POIFSDocumentPath) Hashcode() int

func (*POIFSDocumentPath) Length 

func (dp *POIFSDocumentPath) Length() int

func (*POIFSDocumentPath) String 

func (dp *POIFSDocumentPath) String() string

type POIFSFileSystem 

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

func FileSystemFromReader 

func FileSystemFromReader(r io.Reader) (*POIFSFileSystem, error)

Create Filesystem from Reader. Reader is read until EOF.

func NewFileSystem 

func NewFileSystem() *POIFSFileSystem

Create POIFS FileSystem intended for writing

func (*POIFSFileSystem) AddDirectory 

func (fs *POIFSFileSystem) AddDirectory(prop ParentProperty)

func (*POIFSFileSystem) AddDocument 

func (fs *POIFSFileSystem) AddDocument(doc *POIFSDocument)

func (*POIFSFileSystem) CreateDir 

func (fs *POIFSFileSystem) CreateDir(name string) (DirectoryEntry, error)

func (*POIFSFileSystem) CreateDocument 

func (fs *POIFSFileSystem) CreateDocument(name string, r io.Reader) (DocumentEntry, error)

func (fs *POIFSFileSystem) CreateDocument(name string, data []byte) (DocumentEntry, error) {

func (*POIFSFileSystem) GetRoot 

func (fs *POIFSFileSystem) GetRoot() (*DirectoryNode, error)

func (*POIFSFileSystem) Remove 

func (fs *POIFSFileSystem) Remove(entry Entry)

func (*POIFSFileSystem) WriteFileSystem 

func (fs *POIFSFileSystem) WriteFileSystem(output io.Writer) error

type Parent 

type Parent interface {
	//Child
	AddChild(prop IProperty) error
	DelChild(prop IProperty) bool
	GetChildren() []IProperty
	ChangeName(prop IProperty, newName string) bool
}

type ParentProperty 

type ParentProperty interface {
	IProperty
	Parent
}
type ChildProperty interface {
	IProperty
	Child
}

type Property 

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

func CreateProperty 

func CreateProperty() *Property

func NewProperty 

func NewProperty(index int, array []byte, offset int) *Property

func (*Property) ChildIndex 

func (p *Property) ChildIndex() int

func (*Property) GetIndex 

func (p *Property) GetIndex() int

func (*Property) GetName 

func (p *Property) GetName() string

func (*Property) GetNextChild 

func (p *Property) GetNextChild() Child

func (*Property) GetNextChildIndex 

func (p *Property) GetNextChildIndex() int

func (*Property) GetPrevChildIndex 

func (p *Property) GetPrevChildIndex() int

func (*Property) GetPreviousChild 

func (p *Property) GetPreviousChild() Child

func (*Property) GetSize 

func (p *Property) GetSize() int

func (*Property) GetStartBlock 

func (p *Property) GetStartBlock() int

func (*Property) GetStorageClsid 

func (p *Property) GetStorageClsid() ClassID

func (*Property) IsDirectory 

func (p *Property) IsDirectory() bool

func (*Property) SetChildProperty 

func (p *Property) SetChildProperty(child int)

child the child property's index in the Property Table

func (*Property) SetIndex 

func (p *Property) SetIndex(index int)

func (*Property) SetName 

func (p *Property) SetName(name string)

func (*Property) SetNextChild 

func (p *Property) SetNextChild(child Child)

func (*Property) SetNodeColor 

func (p *Property) SetNodeColor(nodeColor byte)

func (*Property) SetPreviousChild 

func (p *Property) SetPreviousChild(child Child)

func (*Property) SetPropertyType 

func (p *Property) SetPropertyType(propertyType byte)

func (*Property) SetSize 

func (p *Property) SetSize(size int)

func (*Property) SetStartBlock 

func (p *Property) SetStartBlock(startBlock int)

func (*Property) SetStorageClsid 

func (p *Property) SetStorageClsid(cid ClassID)

func (*Property) ShortDescription 

func (p *Property) ShortDescription() string

func (*Property) UseSmallBlocks 

func (p *Property) UseSmallBlocks() bool

func (*Property) WriteData 

func (p *Property) WriteData(w io.Writer) error

type PropertyBlock 

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

func NewPropertyBlock 

func NewPropertyBlock(bigBlockSize POIFSBigBlockSize) *PropertyBlock

func (*PropertyBlock) WriteBlocks 

func (pb *PropertyBlock) WriteBlocks(w io.Writer) error

type PropertyComparator 

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

PropertySorter implements the Sort interface, Sorting the changes within

func PropertySorter 

func PropertySorter(compare Comparator) *PropertyComparator

returns a Comparator that sorts using the compare function

func (*PropertyComparator) Len 

func (pc *PropertyComparator) Len() int

Len is part of sort.Interface.

func (*PropertyComparator) Less 

func (pc *PropertyComparator) Less(i, j int) bool

Less is part of sort.Interface.

func (*PropertyComparator) Sort 

func (pc *PropertyComparator) Sort(props []IProperty)

Sort sorts the argument slice according to the less functions passed to PropertySorter.

func (*PropertyComparator) Swap 

func (pc *PropertyComparator) Swap(i, j int)

Swap is part of sort.Interface.

type PropertyTable 

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

func NewPropertyTable 

func NewPropertyTable(hb *HeaderBlock) *PropertyTable

func NewPropertyTableWithList 

func NewPropertyTableWithList(hb *HeaderBlock, blocklist *rawDataBlockList) (*PropertyTable, error)

func NewPropertyTableWithProps 

func NewPropertyTableWithProps(hb *HeaderBlock, props []IProperty) *PropertyTable

func (*PropertyTable) AddProperty 

func (pt *PropertyTable) AddProperty(prop IProperty)

func (*PropertyTable) CountBlocks 

func (pt *PropertyTable) CountBlocks() int

func (*PropertyTable) GetRoot 

func (pt *PropertyTable) GetRoot() ParentProperty

func (*PropertyTable) GetStartBlock 

func (pt *PropertyTable) GetStartBlock() int

func (*PropertyTable) PreWrite 

func (pt *PropertyTable) PreWrite()

Prepare to be written

func (*PropertyTable) RemoveProperty 

func (pt *PropertyTable) RemoveProperty(prop IProperty)

func (*PropertyTable) SetStartBlock 

func (pt *PropertyTable) SetStartBlock(index int)

func (*PropertyTable) WriteBlocks 

func (pt *PropertyTable) WriteBlocks(w io.Writer) error

type RootProperty 

type RootProperty struct {
	*DirectoryProperty
}

func NewRootProperty 

func NewRootProperty() *RootProperty

func NewRootPropertyFromData 

func NewRootPropertyFromData(index int, array []byte, offset int) *RootProperty

func (*RootProperty) SetSize 

func (p *RootProperty) SetSize(size int)

type ShortField 

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

func NewShortField 

func NewShortField(offset int, value int16, data []byte) (*ShortField, error)

func NewShortFieldFromBytes 

func NewShortFieldFromBytes(offset int, data []byte) (*ShortField, error)

func NewShortFieldWithOffset 

func NewShortFieldWithOffset(offset int) (*ShortField, error)

func NewShortFieldWithVal 

func NewShortFieldWithVal(offset int, value int16) (*ShortField, error)

func (*ShortField) ReadFromBytes 

func (f *ShortField) ReadFromBytes(data []byte)

func (*ShortField) Set 

func (f *ShortField) Set(val int16, data []byte)

func (*ShortField) String 

func (f *ShortField) String() string

func (*ShortField) WriteToBytes 

func (f *ShortField) WriteToBytes(data []byte)

type SmallBlockTableWriter 

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

func NewSmalBlockTableWriter 

func NewSmalBlockTableWriter(bigBlockSize POIFSBigBlockSize, documents []*POIFSDocument,
	root *RootProperty) *SmallBlockTableWriter

func (*SmallBlockTableWriter) CountBlocks 

func (s *SmallBlockTableWriter) CountBlocks() int

func (*SmallBlockTableWriter) GetSBAT 

func (s *SmallBlockTableWriter) GetSBAT() *BlockAllocationTableWriter

func (*SmallBlockTableWriter) GetSBATBlockCount 

func (s *SmallBlockTableWriter) GetSBATBlockCount() int

func (*SmallBlockTableWriter) SetStartBlock 

func (s *SmallBlockTableWriter) SetStartBlock(start_block int)

func (*SmallBlockTableWriter) WriteBlocks 

func (s *SmallBlockTableWriter) WriteBlocks(w io.Writer) error

type Stack 

type Stack []interface{}

func (Stack) Cap 

func (stack Stack) Cap() int

func (Stack) IsEmpty 

func (stack Stack) IsEmpty() bool

func (Stack) Len 

func (stack Stack) Len() int

func (*Stack) Pop 

func (stack *Stack) Pop() (interface{}, error)

func (*Stack) Push 

func (stack *Stack) Push(x interface{})

func (Stack) Top 

func (stack Stack) Top() (interface{}, error)

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