unipdf/sanitize/sanitize.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 sanitize ;import (_g "github.com/unidoc/unipdf/v3/common";_a "github.com/unidoc/unipdf/v3/core";);func (_cb *Sanitizer )analyze (_bgfc []_a .PdfObject ){_dag :=map[string ]int {};for _ ,_add :=range _bgfc {switch _ef :=_add .(type ){case *_a .PdfIndirectObject :_aga ,_ege :=_a .GetDict (_ef .PdfObject );
if _ege {if _fbg ,_gfc :=_a .GetName (_aga .Get ("\u0054\u0079\u0070\u0065"));_gfc &&*_fbg =="\u0043a\u0074\u0061\u006c\u006f\u0067"{if _ ,_gg :=_a .GetIndirect (_aga .Get ("\u004f\u0070\u0065\u006e\u0041\u0063\u0074\u0069\u006f\u006e"));_gg {_dag ["\u004f\u0070\u0065\u006e\u0041\u0063\u0074\u0069\u006f\u006e"]++;
};}else if _aa ,_fcc :=_a .GetName (_aga .Get ("\u0053"));_fcc {_af :=_aa .String ();if _af =="\u004a\u0061\u0076\u0061\u0053\u0063\u0072\u0069\u0070\u0074"||_af =="\u0055\u0052\u0049"||_af =="\u0047\u006f\u0054\u006f"||_af =="\u0047\u006f\u0054o\u0052"||_af =="\u004c\u0061\u0075\u006e\u0063\u0068"{_dag [_af ]++;
}else if _af =="\u0052e\u006e\u0064\u0069\u0074\u0069\u006fn"{if _ ,_ebg :=_a .GetStream (_aga .Get ("\u004a\u0053"));_ebg {_dag [_af ]++;};};}else if _fcg :=_aga .Get ("\u004a\u0061\u0076\u0061\u0053\u0063\u0072\u0069\u0070\u0074");_fcg !=nil {_dag ["\u004a\u0061\u0076\u0061\u0053\u0063\u0072\u0069\u0070\u0074"]++;
}else if _aaa ,_ab :=_a .GetIndirect (_aga .Get ("\u0050\u0061\u0072\u0065\u006e\u0074"));_ab {if _dc ,_gc :=_a .GetDict (_aaa .PdfObject );_gc {if _dfb ,_fbf :=_a .GetDict (_dc .Get ("\u0041\u0041"));_fbf {_cba :=_dfb .Get ("\u004b");_ddc ,_efc :=_a .GetIndirect (_cba );
if _efc {if _bef ,_de :=_a .GetDict (_ddc .PdfObject );_de {if _cfc ,_dbea :=_a .GetName (_bef .Get ("\u0053"));_dbea &&*_cfc =="\u004a\u0061\u0076\u0061\u0053\u0063\u0072\u0069\u0070\u0074"{_dag ["\u004a\u0061\u0076\u0061\u0053\u0063\u0072\u0069\u0070\u0074"]++;
}else if _ ,_fgg :=_a .GetString (_bef .Get ("\u004a\u0053"));_fgg {_dag ["\u004a\u0061\u0076\u0061\u0053\u0063\u0072\u0069\u0070\u0074"]++;}else {_adc :=_dfb .Get ("\u0046");if _adc !=nil {_gb ,_gfee :=_a .GetIndirect (_adc );if _gfee {if _ddg ,_ece :=_a .GetDict (_gb .PdfObject );
_ece {if _aee ,_ddb :=_a .GetName (_ddg .Get ("\u0053"));_ddb {_dg :=_aee .String ();_dag [_dg ]++;};};};};};};};};};};};};};_cb ._cc =_dag ;};

// Sanitizer represents a sanitizer object.
// It implements the Optimizer interface to access the objects field from the writer.
type Sanitizer struct{_ae SanitizationOpts ;_cc map[string ]int ;};func (_d *Sanitizer )processObjects (_da []_a .PdfObject )([]_a .PdfObject ,error ){_cf :=[]_a .PdfObject {};_f :=_d ._ae ;for _ ,_ag :=range _da {switch _dd :=_ag .(type ){case *_a .PdfIndirectObject :_fb ,_dde :=_a .GetDict (_dd );
if _dde {if _gf ,_gfe :=_a .GetName (_fb .Get ("\u0054\u0079\u0070\u0065"));_gfe &&*_gf =="\u0043a\u0074\u0061\u006c\u006f\u0067"{if _ ,_fba :=_a .GetIndirect (_fb .Get ("\u004f\u0070\u0065\u006e\u0041\u0063\u0074\u0069\u006f\u006e"));_fba &&_f .OpenAction {_fb .Remove ("\u004f\u0070\u0065\u006e\u0041\u0063\u0074\u0069\u006f\u006e");
};}else if _ac ,_b :=_a .GetName (_fb .Get ("\u0053"));_b {switch *_ac {case "\u004a\u0061\u0076\u0061\u0053\u0063\u0072\u0069\u0070\u0074":if _f .JavaScript {if _bg ,_fe :=_a .GetStream (_fb .Get ("\u004a\u0053"));_fe {_cca :=[]byte {};_ccg ,_ea :=_a .MakeStream (_cca ,nil );
if _ea ==nil {*_bg =*_ccg ;};};_g .Log .Debug ("\u004a\u0061\u0076\u0061\u0073\u0063\u0072\u0069\u0070\u0074\u0020a\u0063\u0074\u0069\u006f\u006e\u0020\u0073\u006b\u0069\u0070p\u0065\u0064\u002e");continue ;};case "\u0055\u0052\u0049":if _f .URI {_g .Log .Debug ("\u0055\u0052\u0049\u0020ac\u0074\u0069\u006f\u006e\u0020\u0073\u006b\u0069\u0070\u0070\u0065\u0064\u002e");
continue ;};case "\u0047\u006f\u0054\u006f":if _f .GoTo {_g .Log .Debug ("G\u004fT\u004f\u0020\u0061\u0063\u0074\u0069\u006f\u006e \u0073\u006b\u0069\u0070pe\u0064\u002e");continue ;};case "\u0047\u006f\u0054o\u0052":if _f .GoToR {_g .Log .Debug ("R\u0065\u006d\u006f\u0074\u0065\u0020G\u006f\u0054\u004f\u0020\u0061\u0063\u0074\u0069\u006fn\u0020\u0073\u006bi\u0070p\u0065\u0064\u002e");
continue ;};case "\u004c\u0061\u0075\u006e\u0063\u0068":if _f .Launch {_g .Log .Debug ("\u004a\u0061\u0076\u0061\u0073\u0063\u0072\u0069\u0070\u0074\u0020a\u0063\u0074\u0069\u006f\u006e\u0020\u0073\u006b\u0069\u0070p\u0065\u0064\u002e");continue ;};case "\u0052e\u006e\u0064\u0069\u0074\u0069\u006fn":if _cd ,_fa :=_a .GetStream (_fb .Get ("\u004a\u0053"));
_fa {_cce :=[]byte {};_ed ,_agc :=_a .MakeStream (_cce ,nil );if _agc ==nil {*_cd =*_ed ;};};};}else if _db :=_fb .Get ("\u004a\u0061\u0076\u0061\u0053\u0063\u0072\u0069\u0070\u0074");_db !=nil &&_f .JavaScript {continue ;}else if _ca ,_eg :=_a .GetName (_fb .Get ("\u0054\u0079\u0070\u0065"));
_eg &&*_ca =="\u0041\u006e\u006eo\u0074"&&_f .JavaScript {if _ec ,_ccb :=_a .GetIndirect (_fb .Get ("\u0050\u0061\u0072\u0065\u006e\u0074"));_ccb {if _fed ,_bgf :=_a .GetDict (_ec .PdfObject );_bgf {if _ee ,_ba :=_a .GetDict (_fed .Get ("\u0041\u0041"));
_ba {_ce ,_fbb :=_a .GetIndirect (_ee .Get ("\u004b"));if _fbb {if _ad ,_dfc :=_a .GetDict (_ce .PdfObject );_dfc {if _bgc ,_ddf :=_a .GetName (_ad .Get ("\u0053"));_ddf &&*_bgc =="\u004a\u0061\u0076\u0061\u0053\u0063\u0072\u0069\u0070\u0074"{_ad .Clear ();
}else if _gab :=_ee .Get ("\u0046");_gab !=nil {if _ge ,_dbe :=_a .GetIndirect (_gab );_dbe {if _gd ,_eae :=_a .GetDict (_ge .PdfObject );_eae {if _fg ,_be :=_a .GetName (_gd .Get ("\u0053"));_be &&*_fg =="\u004a\u0061\u0076\u0061\u0053\u0063\u0072\u0069\u0070\u0074"{_gd .Clear ();
};};};};};};};};};};};case *_a .PdfObjectStream :_g .Log .Debug ("\u0070d\u0066\u0020\u006f\u0062j\u0065\u0063\u0074\u0020\u0073t\u0072e\u0061m\u0020\u0074\u0079\u0070\u0065\u0020\u0025T",_dd );case *_a .PdfObjectStreams :_g .Log .Debug ("\u0070\u0064\u0066\u0020\u006f\u0062\u006a\u0065\u0063\u0074\u0020s\u0074\u0072\u0065\u0061\u006d\u0073\u0020\u0074\u0079\u0070e\u0020\u0025\u0054",_dd );
default:_g .Log .Debug ("u\u006e\u006b\u006e\u006fwn\u0020p\u0064\u0066\u0020\u006f\u0062j\u0065\u0063\u0074\u0020\u0025\u0054",_dd );};_cf =append (_cf ,_ag );};_d .analyze (_cf );return _cf ,nil ;};

// Optimize optimizes `objects` and returns updated list of objects.
func (_e *Sanitizer )Optimize (objects []_a .PdfObject )([]_a .PdfObject ,error ){return _e .processObjects (objects );};

// New returns a new sanitizer object.
func New (opts SanitizationOpts )*Sanitizer {return &Sanitizer {_ae :opts }};

// SanitizationOpts specifies the objects to be removed during sanitization.
type SanitizationOpts struct{

// JavaScript specifies wether JavaScript action should be removed. JavaScript Actions, section 12.6.4.16 of PDF32000_2008
JavaScript bool ;

// URI specifies if URI actions should be removed. 12.6.4.7 URI Actions, PDF32000_2008.
URI bool ;

// GoToR removes remote GoTo actions. 12.6.4.3 Remote Go-To Actions, PDF32000_2008.
GoToR bool ;

// GoTo specifies wether GoTo actions should be removed. 12.6.4.2 Go-To Actions, PDF32000_2008.
GoTo bool ;

// RenditionJS enables removing of `JS` entry from a Rendition Action.
// The `JS` entry has a value of text string or stream containing a JavaScript script that shall be executed when the action is triggered.
// 12.6.4.13 Rendition Actions Table 214, PDF32000_2008.
RenditionJS bool ;

// OpenAction removes OpenAction entry from the document catalog.
OpenAction bool ;

// Launch specifies wether Launch Action should be removed.
// A launch action launches an application or opens or prints a document.
// 12.6.4.5 Launch Actions, PDF32000_2008.
Launch bool ;};

// GetSuspiciousObjects returns a count of each detected suspicious object.
func (_bf *Sanitizer )GetSuspiciousObjects ()map[string ]int {return _bf ._cc };