unioffice/zippkg/zippkg.go

//
// Copyright 2020 FoxyUtils ehf. All rights reserved.
//
// This is a commercial product and requires a license to operate.
// A trial license can be obtained at https://unidoc.io
//
// DO NOT EDIT: generated by unitwist Go source code obfuscator.
//
// Use of this source code is governed by the UniDoc End User License Agreement
// terms that can be accessed at https://unidoc.io/eula/

package zippkg ;import (_d "archive/zip";_gb "bytes";_g "encoding/xml";_e "fmt";_ac "github.com/unidoc/unioffice";_ga "github.com/unidoc/unioffice/algo";_ea "github.com/unidoc/unioffice/common/tempstorage";_gbg "github.com/unidoc/unioffice/schema/soo/pkg/relationships";_dg "io";_dc "path";_ba "path/filepath";_da "sort";_c "strings";_a "time";);

// MarshalXML creates a file inside of a zip and marshals an object as xml, prefixing it
// with a standard XML header.
func MarshalXML (z *_d .Writer ,filename string ,v interface{})error {_cbf :=&_d .FileHeader {};_cbf .Method =_d .Deflate ;_cbf .Name =filename ;_cbf .SetModTime (_a .Now ());_ee ,_fde :=z .CreateHeader (_cbf );if _fde !=nil {return _e .Errorf ("\u0063\u0072\u0065\u0061ti\u006e\u0067\u0020\u0025\u0073\u0020\u0069\u006e\u0020\u007a\u0069\u0070\u003a\u0020%\u0073",filename ,_fde );};_ ,_fde =_ee .Write ([]byte (XMLHeader ));if _fde !=nil {return _e .Errorf ("\u0063\u0072e\u0061\u0074\u0069\u006e\u0067\u0020\u0078\u006d\u006c\u0020\u0068\u0065\u0061\u0064\u0065\u0072\u0020\u0074\u006f\u0020\u0025\u0073: \u0025\u0073",filename ,_fde );};if _fde =_g .NewEncoder (SelfClosingWriter {_ee }).Encode (v );_fde !=nil {return _e .Errorf ("\u006d\u0061\u0072\u0073\u0068\u0061\u006c\u0069\u006e\u0067\u0020\u0025s\u003a\u0020\u0025\u0073",filename ,_fde );};_ ,_fde =_ee .Write (_afc );return _fde ;};

// OnNewRelationshipFunc is called when a new relationship has been discovered.
//
// target is a resolved path that takes into account the location of the
// relationships file source and should be the path in the zip file.
//
// files are passed so non-XML files that can't be handled by AddTarget can be
// decoded directly (e.g. images)
//
// rel is the actual relationship so its target can be modified if the source
// target doesn't match where unioffice will write the file (e.g. read in
// 'xl/worksheets/MyWorksheet.xml' and we'll write out
// 'xl/worksheets/sheet1.xml')
type OnNewRelationshipFunc func (_f *DecodeMap ,_ed ,_df string ,_fa []*_d .File ,_fc *_gbg .Relationship ,_db Target )error ;

// DecodeMap is used to walk a tree of relationships, decoding files and passing
// control back to the document.
type DecodeMap struct{_dce map[string ]Target ;_gbe map[*_gbg .Relationships ]string ;_cf []Target ;_be OnNewRelationshipFunc ;_cfa map[string ]struct{};_ff map[string ]int ;};var _ecb =[]byte {'/','>'};func MarshalXMLByType (z *_d .Writer ,dt _ac .DocType ,typ string ,v interface{})error {_gaf :=_ac .AbsoluteFilename (dt ,typ ,0);return MarshalXML (z ,_gaf ,v );};

// AddFileFromDisk reads a file from internal storage and adds it at a given path to a zip file.
// TODO: Rename to AddFileFromStorage in next major version release (v2).
// NOTE: If disk storage cannot be used, memory storage can be used instead by calling memstore.SetAsStorage().
func AddFileFromDisk (z *_d .Writer ,zipPath ,storagePath string )error {_gg ,_ca :=z .Create (zipPath );if _ca !=nil {return _e .Errorf ("e\u0072\u0072\u006f\u0072 c\u0072e\u0061\u0074\u0069\u006e\u0067 \u0025\u0073\u003a\u0020\u0025\u0073",zipPath ,_ca );};_gc ,_ca :=_ea .Open (storagePath );if _ca !=nil {return _e .Errorf ("e\u0072r\u006f\u0072\u0020\u006f\u0070\u0065\u006e\u0069n\u0067\u0020\u0025\u0073: \u0025\u0073",storagePath ,_ca );};defer _gc .Close ();_ ,_ca =_dg .Copy (_gg ,_gc );return _ca ;};var _afc =[]byte {'\r','\n'};

// Decode unmarshals the content of a *zip.File as XML to a given destination.
func Decode (f *_d .File ,dest interface{})error {_cb ,_fe :=f .Open ();if _fe !=nil {return _e .Errorf ("e\u0072r\u006f\u0072\u0020\u0072\u0065\u0061\u0064\u0069n\u0067\u0020\u0025\u0073: \u0025\u0073",f .Name ,_fe );};defer _cb .Close ();_ag :=_g .NewDecoder (_cb );if _ge :=_ag .Decode (dest );_ge !=nil {return _e .Errorf ("e\u0072\u0072\u006f\u0072 d\u0065c\u006f\u0064\u0069\u006e\u0067 \u0025\u0073\u003a\u0020\u0025\u0073",f .Name ,_ge );};if _edg ,_daf :=dest .(*_gbg .Relationships );_daf {for _eg ,_ab :=range _edg .Relationship {switch _ab .TypeAttr {case _ac .OfficeDocumentTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .OfficeDocumentType ;case _ac .StylesTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .StylesType ;case _ac .ThemeTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .ThemeType ;case _ac .ControlTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .ControlType ;case _ac .SettingsTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .SettingsType ;case _ac .ImageTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .ImageType ;case _ac .CommentsTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .CommentsType ;case _ac .ThumbnailTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .ThumbnailType ;case _ac .DrawingTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .DrawingType ;case _ac .ChartTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .ChartType ;case _ac .ExtendedPropertiesTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .ExtendedPropertiesType ;case _ac .CustomXMLTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .CustomXMLType ;case _ac .WorksheetTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .WorksheetType ;case _ac .SharedStringsTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .SharedStringsType ;case _ac .TableTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .TableType ;case _ac .HeaderTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .HeaderType ;case _ac .FooterTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .FooterType ;case _ac .NumberingTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .NumberingType ;case _ac .FontTableTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .FontTableType ;case _ac .WebSettingsTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .WebSettingsType ;case _ac .FootNotesTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .FootNotesType ;case _ac .EndNotesTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .EndNotesType ;case _ac .SlideTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .SlideType ;case _ac .VMLDrawingTypeStrict :_edg .Relationship [_eg ].TypeAttr =_ac .VMLDrawingType ;};};_da .Slice (_edg .Relationship ,func (_eaa ,_gfg int )bool {_gde :=_edg .Relationship [_eaa ];_gbb :=_edg .Relationship [_gfg ];return _ga .NaturalLess (_gde .IdAttr ,_gbb .IdAttr );});};return nil ;};

// ExtractToDiskTmp extracts a zip file to a temporary file in a given path,
// returning the name of the file.
func ExtractToDiskTmp (f *_d .File ,path string )(string ,error ){_ffd ,_dbc :=_ea .TempFile (path ,"\u007a\u007a");if _dbc !=nil {return "",_dbc ;};defer _ffd .Close ();_ec ,_dbc :=f .Open ();if _dbc !=nil {return "",_dbc ;};defer _ec .Close ();_ ,_dbc =_dg .Copy (_ffd ,_ec );if _dbc !=nil {return "",_dbc ;};return _ffd .Name (),nil ;};

// AddFileFromBytes takes a byte array and adds it at a given path to a zip file.
func AddFileFromBytes (z *_d .Writer ,zipPath string ,data []byte )error {_ggb ,_fdg :=z .Create (zipPath );if _fdg !=nil {return _e .Errorf ("e\u0072\u0072\u006f\u0072 c\u0072e\u0061\u0074\u0069\u006e\u0067 \u0025\u0073\u003a\u0020\u0025\u0073",zipPath ,_fdg );};_ ,_fdg =_dg .Copy (_ggb ,_gb .NewReader (data ));return _fdg ;};func (_dfc *DecodeMap )IndexFor (path string )int {return _dfc ._ff [path ]};func (_aeg SelfClosingWriter )Write (b []byte )(int ,error ){_dfb :=0;_gdc :=0;for _bg :=0;_bg < len (b )-2;_bg ++{if b [_bg ]=='>'&&b [_bg +1]=='<'&&b [_bg +2]=='/'{_deg :=[]byte {};_aba :=_bg ;for _dgcb :=_bg ;_dgcb >=0;_dgcb --{if b [_dgcb ]==' '{_aba =_dgcb ;}else if b [_dgcb ]=='<'{_deg =b [_dgcb +1:_aba ];break ;};};_abg :=[]byte {};for _fae :=_bg +3;_fae < len (b );_fae ++{if b [_fae ]=='>'{_abg =b [_bg +3:_fae ];break ;};};if !_gb .Equal (_deg ,_abg ){continue ;};_bfe ,_aege :=_aeg .W .Write (b [_dfb :_bg ]);if _aege !=nil {return _gdc +_bfe ,_aege ;};_gdc +=_bfe ;_ ,_aege =_aeg .W .Write (_ecb );if _aege !=nil {return _gdc ,_aege ;};_gdc +=3;for _dfg :=_bg +2;_dfg < len (b )&&b [_dfg ]!='>';_dfg ++{_gdc ++;_dfb =_dfg +2;_bg =_dfb ;};};};_cab ,_cfe :=_aeg .W .Write (b [_dfb :]);return _cab +_gdc ,_cfe ;};

// SelfClosingWriter wraps a writer and replaces XML tags of the
// type <foo></foo> with <foo/>
type SelfClosingWriter struct{W _dg .Writer ;};

// SetOnNewRelationshipFunc sets the function to be called when a new
// relationship has been discovered.
func (_af *DecodeMap )SetOnNewRelationshipFunc (fn OnNewRelationshipFunc ){_af ._be =fn };

// Decode loops decoding targets registered with AddTarget and calling th
func (_de *DecodeMap )Decode (files []*_d .File )error {_cd :=1;for _cd > 0{for len (_de ._cf )> 0{_ce :=_de ._cf [0];_de ._cf =_de ._cf [1:];_gf :=_ce .Ifc .(*_gbg .Relationships );for _ ,_gd :=range _gf .Relationship {_ceg :=_de ._gbe [_gf ];if _ba .IsAbs (_gd .TargetAttr ){_gd .TargetAttr =_c .TrimPrefix (_gd .TargetAttr ,"\u002f");if _c .HasPrefix (_gd .TargetAttr ,_ceg ){_ceg ="";};};_de ._be (_de ,_ceg +_gd .TargetAttr ,_gd .TypeAttr ,files ,_gd ,_ce );};};for _cc ,_fgc :=range files {if _fgc ==nil {continue ;};if _dfa ,_fcd :=_de ._dce [_fgc .Name ];_fcd {delete (_de ._dce ,_fgc .Name );if _gbec :=Decode (_fgc ,_dfa .Ifc );_gbec !=nil {return _gbec ;};files [_cc ]=nil ;if _gac ,_dgd :=_dfa .Ifc .(*_gbg .Relationships );_dgd {_de ._cf =append (_de ._cf ,_dfa );_gfc ,_ :=_dc .Split (_dc .Clean (_fgc .Name +"\u002f\u002e\u002e\u002f"));_de ._gbe [_gac ]=_gfc ;_cd ++;};};};_cd --;};return nil ;};

// RelationsPathFor returns the relations path for a given filename.
func RelationsPathFor (path string )string {_bf :=_c .Split (path ,"\u002f");_fd :=_c .Join (_bf [0:len (_bf )-1],"\u002f");_ae :=_bf [len (_bf )-1];_fd +="\u002f_\u0072\u0065\u006c\u0073\u002f";_ae +="\u002e\u0072\u0065l\u0073";return _fd +_ae ;};func MarshalXMLByTypeIndex (z *_d .Writer ,dt _ac .DocType ,typ string ,idx int ,v interface{})error {_dd :=_ac .AbsoluteFilename (dt ,typ ,idx );return MarshalXML (z ,_dd ,v );};

// AddTarget allows documents to register decode targets. Path is a path that
// will be found in the zip file and ifc is an XML element that the file will be
// unmarshaled to.  filePath is the absolute path to the target, ifc is the
// object to decode into, sourceFileType is the type of file that the reference
// was discovered in, and index is the index of the source file type.
func (_ef *DecodeMap )AddTarget (filePath string ,ifc interface{},sourceFileType string ,idx uint32 )bool {if _ef ._dce ==nil {_ef ._dce =make (map[string ]Target );_ef ._gbe =make (map[*_gbg .Relationships ]string );_ef ._cfa =make (map[string ]struct{});_ef ._ff =make (map[string ]int );};if _dc .IsAbs (filePath ){filePath =_c .TrimPrefix (filePath ,"\u002f");};_edf :=_dc .Clean (filePath );if _ ,_bd :=_ef ._cfa [_edf ];_bd {return false ;};_ef ._cfa [_edf ]=struct{}{};_ef ._dce [_edf ]=Target {Path :_edf ,Typ :sourceFileType ,Ifc :ifc ,Index :idx };return true ;};const XMLHeader ="\u003c\u003f\u0078\u006d\u006c\u0020\u0076e\u0072\u0073\u0069o\u006e\u003d\u00221\u002e\u0030\"\u0020\u0065\u006e\u0063\u006f\u0064i\u006eg=\u0022\u0055\u0054\u0046\u002d\u0038\u0022\u0020\u0073\u0074\u0061\u006e\u0064\u0061\u006c\u006f\u006e\u0065\u003d\u0022\u0079\u0065\u0073\u0022\u003f\u003e"+"\u000a";type Target struct{Path string ;Typ string ;Ifc interface{};Index uint32 ;};func (_dgc *DecodeMap )RecordIndex (path string ,idx int ){_dgc ._ff [path ]=idx };