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UniDoc Build 2021-02-22 02:29:48 +00:00
parent 2183fc2b02
commit ec7f5e55c3
48 changed files with 13245 additions and 5914 deletions
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397
annotator/annotator.go
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158
common/common.go
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@ -10,96 +10,100 @@
// terms that can be accessed at https://unidoc.io/eula/
// Package common contains common properties used by the subpackages.
package common ;import (_f "fmt";_af "io";_ab "os";_a "path/filepath";_d "runtime";_fc "time";);
package common ;import (_fa "fmt";_c "io";_b "os";_dc "path/filepath";_d "runtime";_e "time";);
// Debug logs debug message.
func (_da ConsoleLogger )Debug (format string ,args ...interface{}){if _da .LogLevel >=LogLevelDebug {_ea :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_da .output (_ab .Stdout ,_ea ,format ,args ...);};};
// Notice does nothing for dummy logger.
func (DummyLogger )Notice (format string ,args ...interface{}){};
// IsLogLevel returns true if log level is greater or equal than `level`.
// Can be used to avoid resource intensive calls to loggers.
func (_cbe ConsoleLogger )IsLogLevel (level LogLevel )bool {return _cbe .LogLevel >=level };
// Notice logs notice message.
func (_dd ConsoleLogger )Notice (format string ,args ...interface{}){if _dd .LogLevel >=LogLevelNotice {_ae :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_dd .output (_ab .Stdout ,_ae ,format ,args ...);};};
// IsLogLevel returns true from dummy logger.
func (DummyLogger )IsLogLevel (level LogLevel )bool {return true };
// IsLogLevel returns true if log level is greater or equal than `level`.
// Can be used to avoid resource intensive calls to loggers.
func (_dgc WriterLogger )IsLogLevel (level LogLevel )bool {return _dgc .LogLevel >=level };
// Warning logs warning message.
func (_fd WriterLogger )Warning (format string ,args ...interface{}){if _fd .LogLevel >=LogLevelWarning {_de :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_fd .logToWriter (_fd .Output ,_de ,format ,args ...);};};
// Warning logs warning message.
func (_gaf ConsoleLogger )Warning (format string ,args ...interface{}){if _gaf .LogLevel >=LogLevelWarning {_dfb :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_gaf .output (_ab .Stdout ,_dfb ,format ,args ...);};};const _bde ="\u0032\u0020\u004aan\u0075\u0061\u0072\u0079\u0020\u0032\u0030\u0030\u0036\u0020\u0061\u0074\u0020\u0031\u0035\u003a\u0030\u0034";
// Debug logs debug message.
func (_fa WriterLogger )Debug (format string ,args ...interface{}){if _fa .LogLevel >=LogLevelDebug {_ba :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_fa .logToWriter (_fa .Output ,_ba ,format ,args ...);};};
// Trace logs trace message.
func (_ee ConsoleLogger )Trace (format string ,args ...interface{}){if _ee .LogLevel >=LogLevelTrace {_dcg :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_ee .output (_ab .Stdout ,_dcg ,format ,args ...);};};const _gbc =2;const _ccb =30;
// SetLogger sets 'logger' to be used by the unidoc unipdf library.
func SetLogger (logger Logger ){Log =logger };
// Error logs error message.
func (_ece WriterLogger )Error (format string ,args ...interface{}){if _ece .LogLevel >=LogLevelError {_bfd :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_ece .logToWriter (_ece .Output ,_bfd ,format ,args ...);};};
// DummyLogger does nothing.
type DummyLogger struct{};
// LogLevel is the verbosity level for logging.
type LogLevel int ;const _ac =16;
// Error does nothing for dummy logger.
func (DummyLogger )Error (format string ,args ...interface{}){};
// WriterLogger is the logger that writes data to the Output writer
type WriterLogger struct{LogLevel LogLevel ;Output _af .Writer ;};
// Warning does nothing for dummy logger.
func (DummyLogger )Warning (format string ,args ...interface{}){};
// UtcTimeFormat returns a formatted string describing a UTC timestamp.
func UtcTimeFormat (t _fc .Time )string {return t .Format (_bde )+"\u0020\u0055\u0054\u0043"};
// Debug does nothing for dummy logger.
func (DummyLogger )Debug (format string ,args ...interface{}){};const _ffa =2021;
// NewWriterLogger creates new 'writer' logger.
func NewWriterLogger (logLevel LogLevel ,writer _af .Writer )*WriterLogger {_dfc :=WriterLogger {Output :writer ,LogLevel :logLevel };return &_dfc ;};
// Error logs error message.
func (_ec ConsoleLogger )Error (format string ,args ...interface{}){if _ec .LogLevel >=LogLevelError {_fg :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_ec .output (_ab .Stdout ,_fg ,format ,args ...);};};
// Trace does nothing for dummy logger.
func (DummyLogger )Trace (format string ,args ...interface{}){};
// Info does nothing for dummy logger.
func (DummyLogger )Info (format string ,args ...interface{}){};
func (DummyLogger )Info (format string ,args ...interface{}){};const _beb ="\u0032\u0020\u004aan\u0075\u0061\u0072\u0079\u0020\u0032\u0030\u0030\u0036\u0020\u0061\u0074\u0020\u0031\u0035\u003a\u0030\u0034";
// Logger is the interface used for logging in the unipdf package.
type Logger interface{Error (_e string ,_dc ...interface{});Warning (_c string ,_cc ...interface{});Notice (_ff string ,_g ...interface{});Info (_ca string ,_db ...interface{});Debug (_ga string ,_cb ...interface{});Trace (_df string ,_dff ...interface{});IsLogLevel (_bf LogLevel )bool ;};var ReleasedAt =_fc .Date (_ffa ,_gbc ,_aa ,_ac ,_ccb ,0,0,_fc .UTC );
// Warning logs warning message.
func (_da WriterLogger )Warning (format string ,args ...interface{}){if _da .LogLevel >=LogLevelWarning {_af :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_da .logToWriter (_da .Output ,_af ,format ,args ...);};};const _ed =21;
// Trace logs trace message.
func (_fee WriterLogger )Trace (format string ,args ...interface{}){if _fee .LogLevel >=LogLevelTrace {_bb :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_fee .logToWriter (_fee .Output ,_bb ,format ,args ...);};};const _aa =10;func _ffe (_gg _af .Writer ,_fff string ,_afc string ,_gf ...interface{}){_ ,_ggd ,_bdf ,_aec :=_d .Caller (3);if !_aec {_ggd ="\u003f\u003f\u003f";_bdf =0;}else {_ggd =_a .Base (_ggd );};_ag :=_f .Sprintf ("\u0025s\u0020\u0025\u0073\u003a\u0025\u0064 ",_fff ,_ggd ,_bdf )+_afc +"\u000a";_f .Fprintf (_gg ,_ag ,_gf ...);};const (LogLevelTrace LogLevel =5;LogLevelDebug LogLevel =4;LogLevelInfo LogLevel =3;LogLevelNotice LogLevel =2;LogLevelWarning LogLevel =1;LogLevelError LogLevel =0;);func (_gb WriterLogger )logToWriter (_ge _af .Writer ,_gag string ,_fde string ,_def ...interface{}){_ffe (_ge ,_gag ,_fde ,_def );};
// NewConsoleLogger creates new console logger.
func NewConsoleLogger (logLevel LogLevel )*ConsoleLogger {return &ConsoleLogger {LogLevel :logLevel }};const (LogLevelTrace LogLevel =5;LogLevelDebug LogLevel =4;LogLevelInfo LogLevel =3;LogLevelNotice LogLevel =2;LogLevelWarning LogLevel =1;LogLevelError LogLevel =0;
);
// ConsoleLogger is a logger that writes logs to the 'os.Stdout'
type ConsoleLogger struct{LogLevel LogLevel ;};
// Notice logs notice message.
func (_dde WriterLogger )Notice (format string ,args ...interface{}){if _dde .LogLevel >=LogLevelNotice {_ecc :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_dde .logToWriter (_dde .Output ,_ecc ,format ,args ...);};};const Version ="\u0033\u002e\u0031\u0039\u002e\u0030";
func (_fd ConsoleLogger )Notice (format string ,args ...interface{}){if _fd .LogLevel >=LogLevelNotice {_ea :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_fd .output (_b .Stdout ,_ea ,format ,args ...);};};
// Logger is the interface used for logging in the unipdf package.
type Logger interface{Error (_de string ,_fe ...interface{});Warning (_ce string ,_dd ...interface{});Notice (_ee string ,_cb ...interface{});Info (_g string ,_cg ...interface{});Debug (_ba string ,_bd ...interface{});Trace (_fg string ,_cf ...interface{});
IsLogLevel (_bg LogLevel )bool ;};
// IsLogLevel returns true from dummy logger.
func (DummyLogger )IsLogLevel (level LogLevel )bool {return true };
// Info logs info message.
func (_cf WriterLogger )Info (format string ,args ...interface{}){if _cf .LogLevel >=LogLevelInfo {_gac :="\u005bI\u004e\u0046\u004f\u005d\u0020";_cf .logToWriter (_cf .Output ,_gac ,format ,args ...);};};
func (_bfb WriterLogger )Info (format string ,args ...interface{}){if _bfb .LogLevel >=LogLevelInfo {_db :="\u005bI\u004e\u0046\u004f\u005d\u0020";_bfb .logToWriter (_bfb .Output ,_db ,format ,args ...);};};
// NewConsoleLogger creates new console logger.
func NewConsoleLogger (logLevel LogLevel )*ConsoleLogger {return &ConsoleLogger {LogLevel :logLevel }};
// Error logs error message.
func (_a ConsoleLogger )Error (format string ,args ...interface{}){if _a .LogLevel >=LogLevelError {_ae :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_a .output (_b .Stdout ,_ae ,format ,args ...);};};
// Trace does nothing for dummy logger.
func (DummyLogger )Trace (format string ,args ...interface{}){};var Log Logger =DummyLogger {};
// Notice does nothing for dummy logger.
func (DummyLogger )Notice (format string ,args ...interface{}){};var ReleasedAt =_e .Date (_dfc ,_abb ,_ed ,_baa ,_ac ,0,0,_e .UTC );
// Debug does nothing for dummy logger.
func (DummyLogger )Debug (format string ,args ...interface{}){};const _abb =2;var Log Logger =DummyLogger {};
// SetLogger sets 'logger' to be used by the unidoc unipdf library.
func SetLogger (logger Logger ){Log =logger };const _baa =16;
// WriterLogger is the logger that writes data to the Output writer
type WriterLogger struct{LogLevel LogLevel ;Output _c .Writer ;};
// Info logs info message.
func (_dg ConsoleLogger )Info (format string ,args ...interface{}){if _dg .LogLevel >=LogLevelInfo {_fe :="\u005bI\u004e\u0046\u004f\u005d\u0020";_dg .output (_ab .Stdout ,_fe ,format ,args ...);};};func (_eg ConsoleLogger )output (_ef _af .Writer ,_dfa string ,_bd string ,_gc ...interface{}){_ffe (_ef ,_dfa ,_bd ,_gc ...);};
func (_gd ConsoleLogger )Info (format string ,args ...interface{}){if _gd .LogLevel >=LogLevelInfo {_ab :="\u005bI\u004e\u0046\u004f\u005d\u0020";_gd .output (_b .Stdout ,_ab ,format ,args ...);};};const _dfc =2021;
// Error does nothing for dummy logger.
func (DummyLogger )Error (format string ,args ...interface{}){};
// Notice logs notice message.
func (_agf WriterLogger )Notice (format string ,args ...interface{}){if _agf .LogLevel >=LogLevelNotice {_bf :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_agf .logToWriter (_agf .Output ,_bf ,format ,args ...);};};
// UtcTimeFormat returns a formatted string describing a UTC timestamp.
func UtcTimeFormat (t _e .Time )string {return t .Format (_beb )+"\u0020\u0055\u0054\u0043"};func _gae (_afa _c .Writer ,_deb string ,_fgc string ,_dag ...interface{}){_ ,_eae ,_fbf ,_agfa :=_d .Caller (3);if !_agfa {_eae ="\u003f\u003f\u003f";_fbf =0;
}else {_eae =_dc .Base (_eae );};_aaa :=_fa .Sprintf ("\u0025s\u0020\u0025\u0073\u003a\u0025\u0064 ",_deb ,_eae ,_fbf )+_fgc +"\u000a";_fa .Fprintf (_afa ,_aaa ,_dag ...);};
// NewWriterLogger creates new 'writer' logger.
func NewWriterLogger (logLevel LogLevel ,writer _c .Writer )*WriterLogger {_gf :=WriterLogger {Output :writer ,LogLevel :logLevel };return &_gf ;};
// Trace logs trace message.
func (_be ConsoleLogger )Trace (format string ,args ...interface{}){if _be .LogLevel >=LogLevelTrace {_fc :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_be .output (_b .Stdout ,_fc ,format ,args ...);};};
// IsLogLevel returns true if log level is greater or equal than `level`.
// Can be used to avoid resource intensive calls to loggers.
func (_feb WriterLogger )IsLogLevel (level LogLevel )bool {return _feb .LogLevel >=level };func (_dg ConsoleLogger )output (_fga _c .Writer ,_cfb string ,_cgb string ,_dcf ...interface{}){_gae (_fga ,_cfb ,_cgb ,_dcf ...);};func (_eb WriterLogger )logToWriter (_dee _c .Writer ,_df string ,_fcg string ,_bb ...interface{}){_gae (_dee ,_df ,_fcg ,_bb );
};const Version ="\u0033\u002e\u0031\u0039\u002e\u0031";
// Debug logs debug message.
func (_fbg WriterLogger )Debug (format string ,args ...interface{}){if _fbg .LogLevel >=LogLevelDebug {_fbe :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_fbg .logToWriter (_fbg .Output ,_fbe ,format ,args ...);};};
// LogLevel is the verbosity level for logging.
type LogLevel int ;
// IsLogLevel returns true if log level is greater or equal than `level`.
// Can be used to avoid resource intensive calls to loggers.
func (_fb ConsoleLogger )IsLogLevel (level LogLevel )bool {return _fb .LogLevel >=level };
// Debug logs debug message.
func (_ga ConsoleLogger )Debug (format string ,args ...interface{}){if _ga .LogLevel >=LogLevelDebug {_aa :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_ga .output (_b .Stdout ,_aa ,format ,args ...);};};
// Trace logs trace message.
func (_gfg WriterLogger )Trace (format string ,args ...interface{}){if _gfg .LogLevel >=LogLevelTrace {_afg :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_gfg .logToWriter (_gfg .Output ,_afg ,format ,args ...);};};
// Warning does nothing for dummy logger.
func (DummyLogger )Warning (format string ,args ...interface{}){};
// Error logs error message.
func (_gg WriterLogger )Error (format string ,args ...interface{}){if _gg .LogLevel >=LogLevelError {_ef :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_gg .logToWriter (_gg .Output ,_ef ,format ,args ...);};};
// Warning logs warning message.
func (_ag ConsoleLogger )Warning (format string ,args ...interface{}){if _ag .LogLevel >=LogLevelWarning {_bdc :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_ag .output (_b .Stdout ,_bdc ,format ,args ...);};};
// DummyLogger does nothing.
type DummyLogger struct{};const _ac =30;

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common/license/license.go
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@ -10,24 +10,25 @@
// terms that can be accessed at https://unidoc.io/eula/
// Package license helps manage commercial licenses and check if they are valid for the version of unipdf used.
package license ;import _aa "github.com/unidoc/unipdf/v3/internal/license";
package license ;import _e "github.com/unidoc/unipdf/v3/internal/license";
// SetMeteredKey sets the metered API key required for SaaS operation.
// Document usage is reported periodically for the product to function correctly.
func SetMeteredKey (apiKey string )error {return _aa .SetMeteredKey (apiKey )};
func SetMeteredKey (apiKey string )error {return _e .SetMeteredKey (apiKey )};
// GetLicenseKey returns the currently loaded license key.
func GetLicenseKey ()*LicenseKey {return _e .GetLicenseKey ()};
// MakeUnlicensedKey returns a default key.
func MakeUnlicensedKey ()*LicenseKey {return _e .MakeUnlicensedKey ()};
// GetMeteredState checks the currently used metered document usage status,
// documents used and credits available.
func GetMeteredState ()(_aa .MeteredStatus ,error ){return _aa .GetMeteredState ()};
func GetMeteredState ()(_e .MeteredStatus ,error ){return _e .GetMeteredState ()};const (LicenseTierUnlicensed =_e .LicenseTierUnlicensed ;LicenseTierCommunity =_e .LicenseTierCommunity ;LicenseTierIndividual =_e .LicenseTierIndividual ;LicenseTierBusiness =_e .LicenseTierBusiness ;
);
// LicenseKey represents a loaded license key.
type LicenseKey =_aa .LicenseKey ;
// GetLicenseKey returns the currently loaded license key.
func GetLicenseKey ()*LicenseKey {return _aa .GetLicenseKey ()};
type LicenseKey =_e .LicenseKey ;
// SetLicenseKey sets and validates the license key.
func SetLicenseKey (content string ,customerName string )error {return _aa .SetLicenseKey (content ,customerName );};const (LicenseTierUnlicensed =_aa .LicenseTierUnlicensed ;LicenseTierCommunity =_aa .LicenseTierCommunity ;LicenseTierIndividual =_aa .LicenseTierIndividual ;LicenseTierBusiness =_aa .LicenseTierBusiness ;);
// MakeUnlicensedKey returns a default key.
func MakeUnlicensedKey ()*LicenseKey {return _aa .MakeUnlicensedKey ()};
func SetLicenseKey (content string ,customerName string )error {return _e .SetLicenseKey (content ,customerName );};

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contentstream/contentstream.go
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contentstream/draw/draw.go
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@ -14,204 +14,242 @@
// page content streams and XObject forms and thus also in annotation appearance streams.
//
// Also defines utility functions for drawing common shapes such as rectangles, lines and circles (ovals).
package draw ;import (_a "fmt";_ab "github.com/unidoc/unipdf/v3/contentstream";_b "github.com/unidoc/unipdf/v3/core";_af "github.com/unidoc/unipdf/v3/internal/transform";_eb "github.com/unidoc/unipdf/v3/model";_f "math";);
// Draw draws the polyline. A graphics state name can be specified for
// setting the polyline properties (e.g. setting the opacity). Otherwise leave
// empty (""). Returns the content stream as a byte array and the polyline
// bounding box.
func (_bfe Polyline )Draw (gsName string )([]byte ,*_eb .PdfRectangle ,error ){if _bfe .LineColor ==nil {_bfe .LineColor =_eb .NewPdfColorDeviceRGB (0,0,0);};_dgc :=NewPath ();for _ ,_cgb :=range _bfe .Points {_dgc =_dgc .AppendPoint (_cgb );};_bbc :=_ab .NewContentCreator ();_bbc .Add_q ();_bbc .Add_RG (_bfe .LineColor .R (),_bfe .LineColor .G (),_bfe .LineColor .B ());_bbc .Add_w (_bfe .LineWidth );if len (gsName )> 1{_bbc .Add_gs (_b .PdfObjectName (gsName ));};DrawPathWithCreator (_dgc ,_bbc );_bbc .Add_S ();_bbc .Add_Q ();return _bbc .Bytes (),_dgc .GetBoundingBox ().ToPdfRectangle (),nil ;};
// AppendPoint adds the specified point to the path.
func (_eba Path )AppendPoint (point Point )Path {_eba .Points =append (_eba .Points ,point );return _eba };
// Circle represents a circle shape with fill and border properties that can be drawn to a PDF content stream.
type Circle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_eb .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_eb .PdfColorDeviceRGB ;Opacity float64 ;};
// CubicBezierPath represents a collection of cubic Bezier curves.
type CubicBezierPath struct{Curves []CubicBezierCurve ;};
// AppendCurve appends the specified Bezier curve to the path.
func (_bd CubicBezierPath )AppendCurve (curve CubicBezierCurve )CubicBezierPath {_bd .Curves =append (_bd .Curves ,curve );return _bd ;};
// BoundingBox represents the smallest rectangular area that encapsulates an object.
type BoundingBox struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;};
// NewCubicBezierPath returns a new empty cubic Bezier path.
func NewCubicBezierPath ()CubicBezierPath {_ed :=CubicBezierPath {};_ed .Curves =[]CubicBezierCurve {};return _ed ;};
package draw ;import (_c "fmt";_d "github.com/unidoc/unipdf/v3/contentstream";_bf "github.com/unidoc/unipdf/v3/core";_ce "github.com/unidoc/unipdf/v3/internal/transform";_cg "github.com/unidoc/unipdf/v3/model";_e "math";);
// Length returns the number of points in the path.
func (_de Path )Length ()int {return len (_de .Points )};
// Rectangle is a shape with a specified Width and Height and a lower left corner at (X,Y) that can be
// drawn to a PDF content stream. The rectangle can optionally have a border and a filling color.
// The Width/Height includes the border (if any specified), i.e. is positioned inside.
type Rectangle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_eb .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_eb .PdfColorDeviceRGB ;Opacity float64 ;};
// NewCubicBezierCurve returns a new cubic Bezier curve.
func NewCubicBezierCurve (x0 ,y0 ,x1 ,y1 ,x2 ,y2 ,x3 ,y3 float64 )CubicBezierCurve {_c :=CubicBezierCurve {};_c .P0 =NewPoint (x0 ,y0 );_c .P1 =NewPoint (x1 ,y1 );_c .P2 =NewPoint (x2 ,y2 );_c .P3 =NewPoint (x3 ,y3 );return _c ;};
// Add shifts the coordinates of the point with dx, dy and returns the result.
func (_gbg Point )Add (dx ,dy float64 )Point {_gbg .X +=dx ;_gbg .Y +=dy ;return _gbg };
// GetPolarAngle returns the angle the magnitude of the vector forms with the
// positive X-axis going counterclockwise.
func (_adc Vector )GetPolarAngle ()float64 {return _f .Atan2 (_adc .Dy ,_adc .Dx )};
// GetBoundingBox returns the bounding box of the path.
func (_gd Path )GetBoundingBox ()BoundingBox {_fc :=BoundingBox {};_gf :=0.0;_gdc :=0.0;_cb :=0.0;_dgb :=0.0;for _fgc ,_gg :=range _gd .Points {if _fgc ==0{_gf =_gg .X ;_gdc =_gg .X ;_cb =_gg .Y ;_dgb =_gg .Y ;continue ;};if _gg .X < _gf {_gf =_gg .X ;};if _gg .X > _gdc {_gdc =_gg .X ;};if _gg .Y < _cb {_cb =_gg .Y ;};if _gg .Y > _dgb {_dgb =_gg .Y ;};};_fc .X =_gf ;_fc .Y =_cb ;_fc .Width =_gdc -_gf ;_fc .Height =_dgb -_cb ;return _fc ;};
// Path consists of straight line connections between each point defined in an array of points.
type Path struct{Points []Point ;};
// Draw draws the basic line to PDF. Generates the content stream which can be used in page contents or appearance
// stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error if
// one occurred.
func (_cbef BasicLine )Draw (gsName string )([]byte ,*_eb .PdfRectangle ,error ){_afb :=_cbef .LineWidth ;_bggg :=NewPath ();_bggg =_bggg .AppendPoint (NewPoint (_cbef .X1 ,_cbef .Y1 ));_bggg =_bggg .AppendPoint (NewPoint (_cbef .X2 ,_cbef .Y2 ));_gbf :=_ab .NewContentCreator ();_ag :=_bggg .GetBoundingBox ();DrawPathWithCreator (_bggg ,_gbf );if _cbef .LineStyle ==LineStyleDashed {_gbf .Add_d ([]int64 {1,1},0);};_gbf .Add_RG (_cbef .LineColor .R (),_cbef .LineColor .G (),_cbef .LineColor .B ()).Add_w (_afb ).Add_S ().Add_Q ();return _gbf .Bytes (),_ag .ToPdfRectangle (),nil ;};
// Copy returns a clone of the path.
func (_eeb Path )Copy ()Path {_dddb :=Path {};_dddb .Points =append (_dddb .Points ,_eeb .Points ...);return _dddb ;};
// Offset shifts the path with the specified offsets.
func (_gc Path )Offset (offX ,offY float64 )Path {for _fe ,_gb :=range _gc .Points {_gc .Points [_fe ]=_gb .Add (offX ,offY );};return _gc ;};
// NewPoint returns a new point with the coordinates x, y.
func NewPoint (x ,y float64 )Point {return Point {X :x ,Y :y }};
// Polyline defines a slice of points that are connected as straight lines.
type Polyline struct{Points []Point ;LineColor *_eb .PdfColorDeviceRGB ;LineWidth float64 ;};const (LineStyleSolid LineStyle =0;LineStyleDashed LineStyle =1;);
// BasicLine defines a line between point 1 (X1,Y1) and point 2 (X2,Y2). The line has a specified width, color and opacity.
type BasicLine struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_eb .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineStyle LineStyle ;};
// Draw draws the rectangle. Can specify a graphics state (gsName) for setting opacity etc.
// Otherwise leave empty (""). Returns the content stream as a byte array, bounding box and an error on failure.
func (_aa Rectangle )Draw (gsName string )([]byte ,*_eb .PdfRectangle ,error ){_ea :=NewPath ();_ea =_ea .AppendPoint (NewPoint (0,0));_ea =_ea .AppendPoint (NewPoint (0,_aa .Height ));_ea =_ea .AppendPoint (NewPoint (_aa .Width ,_aa .Height ));_ea =_ea .AppendPoint (NewPoint (_aa .Width ,0));_ea =_ea .AppendPoint (NewPoint (0,0));if _aa .X !=0||_aa .Y !=0{_ea =_ea .Offset (_aa .X ,_aa .Y );};_dddd :=_ab .NewContentCreator ();_dddd .Add_q ();if _aa .FillEnabled {_dddd .Add_rg (_aa .FillColor .R (),_aa .FillColor .G (),_aa .FillColor .B ());};if _aa .BorderEnabled {_dddd .Add_RG (_aa .BorderColor .R (),_aa .BorderColor .G (),_aa .BorderColor .B ());_dddd .Add_w (_aa .BorderWidth );};if len (gsName )> 1{_dddd .Add_gs (_b .PdfObjectName (gsName ));};DrawPathWithCreator (_ea ,_dddd );_dddd .Add_h ();if _aa .FillEnabled &&_aa .BorderEnabled {_dddd .Add_B ();}else if _aa .FillEnabled {_dddd .Add_f ();}else if _aa .BorderEnabled {_dddd .Add_S ();};_dddd .Add_Q ();return _dddd .Bytes (),_ea .GetBoundingBox ().ToPdfRectangle (),nil ;};
// DrawBezierPathWithCreator makes the bezier path with the content creator.
// Adds the PDF commands to draw the path to the creator instance.
func DrawBezierPathWithCreator (bpath CubicBezierPath ,creator *_ab .ContentCreator ){for _cdge ,_ddc :=range bpath .Curves {if _cdge ==0{creator .Add_m (_ddc .P0 .X ,_ddc .P0 .Y );};creator .Add_c (_ddc .P1 .X ,_ddc .P1 .Y ,_ddc .P2 .X ,_ddc .P2 .Y ,_ddc .P3 .X ,_ddc .P3 .Y );};};func (_ebg Point )String ()string {return _a .Sprintf ("(\u0025\u002e\u0031\u0066\u002c\u0025\u002e\u0031\u0066\u0029",_ebg .X ,_ebg .Y );};
// GetBounds returns the bounding box of the Bezier curve.
func (_d CubicBezierCurve )GetBounds ()_eb .PdfRectangle {_dd :=_d .P0 .X ;_df :=_d .P0 .X ;_ee :=_d .P0 .Y ;_bc :=_d .P0 .Y ;for _dg :=0.0;_dg <=1.0;_dg +=0.001{Rx :=_d .P0 .X *_f .Pow (1-_dg ,3)+_d .P1 .X *3*_dg *_f .Pow (1-_dg ,2)+_d .P2 .X *3*_f .Pow (_dg ,2)*(1-_dg )+_d .P3 .X *_f .Pow (_dg ,3);Ry :=_d .P0 .Y *_f .Pow (1-_dg ,3)+_d .P1 .Y *3*_dg *_f .Pow (1-_dg ,2)+_d .P2 .Y *3*_f .Pow (_dg ,2)*(1-_dg )+_d .P3 .Y *_f .Pow (_dg ,3);if Rx < _dd {_dd =Rx ;};if Rx > _df {_df =Rx ;};if Ry < _ee {_ee =Ry ;};if Ry > _bc {_bc =Ry ;};};_ca :=_eb .PdfRectangle {};_ca .Llx =_dd ;_ca .Lly =_ee ;_ca .Urx =_df ;_ca .Ury =_bc ;return _ca ;};
// Magnitude returns the magnitude of the vector.
func (_ga Vector )Magnitude ()float64 {return _f .Sqrt (_f .Pow (_ga .Dx ,2.0)+_f .Pow (_ga .Dy ,2.0))};
// Draw draws the polygon. A graphics state name can be specified for
// setting the polygon properties (e.g. setting the opacity). Otherwise leave
// empty (""). Returns the content stream as a byte array and the polygon
// bounding box.
func (_gfe Polygon )Draw (gsName string )([]byte ,*_eb .PdfRectangle ,error ){_cbb :=_ab .NewContentCreator ();_cbb .Add_q ();_gfe .FillEnabled =_gfe .FillEnabled &&_gfe .FillColor !=nil ;if _gfe .FillEnabled {_cbb .Add_rg (_gfe .FillColor .R (),_gfe .FillColor .G (),_gfe .FillColor .B ());};_gfe .BorderEnabled =_gfe .BorderEnabled &&_gfe .BorderColor !=nil ;if _gfe .BorderEnabled {_cbb .Add_RG (_gfe .BorderColor .R (),_gfe .BorderColor .G (),_gfe .BorderColor .B ());_cbb .Add_w (_gfe .BorderWidth );};if len (gsName )> 1{_cbb .Add_gs (_b .PdfObjectName (gsName ));};_gca :=NewPath ();for _ ,_ce :=range _gfe .Points {for _bee ,_bgg :=range _ce {_gca =_gca .AppendPoint (_bgg );if _bee ==0{_cbb .Add_m (_bgg .X ,_bgg .Y );}else {_cbb .Add_l (_bgg .X ,_bgg .Y );};};_cbb .Add_h ();};if _gfe .FillEnabled &&_gfe .BorderEnabled {_cbb .Add_B ();}else if _gfe .FillEnabled {_cbb .Add_f ();}else if _gfe .BorderEnabled {_cbb .Add_S ();};_cbb .Add_Q ();return _cbb .Bytes (),_gca .GetBoundingBox ().ToPdfRectangle (),nil ;};
// NewVectorBetween returns a new vector with the direction specified by
// the subtraction of point a from point b (b-a).
func NewVectorBetween (a Point ,b Point )Vector {_aea :=Vector {};_aea .Dx =b .X -a .X ;_aea .Dy =b .Y -a .Y ;return _aea ;};
// RemovePoint removes the point at the index specified by number from the
// path. The index is 1-based.
func (_eef Path )RemovePoint (number int )Path {if number < 1||number > len (_eef .Points ){return _eef ;};_cf :=number -1;_eef .Points =append (_eef .Points [:_cf ],_eef .Points [_cf +1:]...);return _eef ;};
// FlipX flips the sign of the Dx component of the vector.
func (_dce Vector )FlipX ()Vector {_dce .Dx =-_dce .Dx ;return _dce };
// ToPdfRectangle returns the rectangle as a PDF rectangle.
func (_bcf Rectangle )ToPdfRectangle ()*_eb .PdfRectangle {return &_eb .PdfRectangle {Llx :_bcf .X ,Lly :_bcf .Y ,Urx :_bcf .X +_bcf .Width ,Ury :_bcf .Y +_bcf .Height };};
func (_ef Path )Length ()int {return len (_ef .Points )};
// LineEndingStyle defines the line ending style for lines.
// The currently supported line ending styles are None, Arrow (ClosedArrow) and Butt.
type LineEndingStyle int ;
// NewPath returns a new empty path.
func NewPath ()Path {return Path {}};const (LineEndingStyleNone LineEndingStyle =0;LineEndingStyleArrow LineEndingStyle =1;LineEndingStyleButt LineEndingStyle =2;);
// ToPdfRectangle returns the rectangle as a PDF rectangle.
func (_fcb Rectangle )ToPdfRectangle ()*_cg .PdfRectangle {return &_cg .PdfRectangle {Llx :_fcb .X ,Lly :_fcb .Y ,Urx :_fcb .X +_fcb .Width ,Ury :_fcb .Y +_fcb .Height };};
// ToPdfRectangle returns the bounding box as a PDF rectangle.
func (_dfb BoundingBox )ToPdfRectangle ()*_cg .PdfRectangle {return &_cg .PdfRectangle {Llx :_dfb .X ,Lly :_dfb .Y ,Urx :_dfb .X +_dfb .Width ,Ury :_dfb .Y +_dfb .Height };};
// Copy returns a clone of the Bezier path.
func (_fd CubicBezierPath )Copy ()CubicBezierPath {_df :=CubicBezierPath {};_df .Curves =append (_df .Curves ,_fd .Curves ...);return _df ;};
// Offset shifts the path with the specified offsets.
func (_eaa Path )Offset (offX ,offY float64 )Path {for _cge ,_fdcg :=range _eaa .Points {_eaa .Points [_cge ]=_fdcg .Add (offX ,offY );};return _eaa ;};
// Point represents a two-dimensional point.
type Point struct{X float64 ;Y float64 ;};
// Draw draws the composite Bezier curve. A graphics state name can be
// specified for setting the curve properties (e.g. setting the opacity).
// Otherwise leave empty (""). Returns the content stream as a byte array and
// the curve bounding box.
func (_bce PolyBezierCurve )Draw (gsName string )([]byte ,*_eb .PdfRectangle ,error ){if _bce .BorderColor ==nil {_bce .BorderColor =_eb .NewPdfColorDeviceRGB (0,0,0);};_ae :=NewCubicBezierPath ();for _ ,_cag :=range _bce .Curves {_ae =_ae .AppendCurve (_cag );};_bf :=_ab .NewContentCreator ();_bf .Add_q ();_bce .FillEnabled =_bce .FillEnabled &&_bce .FillColor !=nil ;if _bce .FillEnabled {_bf .Add_rg (_bce .FillColor .R (),_bce .FillColor .G (),_bce .FillColor .B ());};_bf .Add_RG (_bce .BorderColor .R (),_bce .BorderColor .G (),_bce .BorderColor .B ());_bf .Add_w (_bce .BorderWidth );if len (gsName )> 1{_bf .Add_gs (_b .PdfObjectName (gsName ));};for _ ,_cbea :=range _ae .Curves {_bf .Add_m (_cbea .P0 .X ,_cbea .P0 .Y );_bf .Add_c (_cbea .P1 .X ,_cbea .P1 .Y ,_cbea .P2 .X ,_cbea .P2 .Y ,_cbea .P3 .X ,_cbea .P3 .Y );};if _bce .FillEnabled {_bf .Add_h ();_bf .Add_B ();}else {_bf .Add_S ();};_bf .Add_Q ();return _bf .Bytes (),_ae .GetBoundingBox ().ToPdfRectangle (),nil ;};
// NewVectorBetween returns a new vector with the direction specified by
// the subtraction of point a from point b (b-a).
func NewVectorBetween (a Point ,b Point )Vector {_ff :=Vector {};_ff .Dx =b .X -a .X ;_ff .Dy =b .Y -a .Y ;return _ff ;};
// CubicBezierPath represents a collection of cubic Bezier curves.
type CubicBezierPath struct{Curves []CubicBezierCurve ;};
// FlipX flips the sign of the Dx component of the vector.
func (_gfb Vector )FlipX ()Vector {_gfb .Dx =-_gfb .Dx ;return _gfb };
// PolyBezierCurve represents a composite curve that is the result of
// joining multiple cubic Bezier curves.
type PolyBezierCurve struct{Curves []CubicBezierCurve ;BorderWidth float64 ;BorderColor *_cg .PdfColorDeviceRGB ;FillEnabled bool ;FillColor *_cg .PdfColorDeviceRGB ;};
// NewCubicBezierPath returns a new empty cubic Bezier path.
func NewCubicBezierPath ()CubicBezierPath {_gd :=CubicBezierPath {};_gd .Curves =[]CubicBezierCurve {};return _gd ;};
// GetPointNumber returns the path point at the index specified by number.
// The index is 1-based.
func (_eg Path )GetPointNumber (number int )Point {if number < 1||number > len (_eg .Points ){return Point {};};return _eg .Points [number -1];};
// Scale scales the vector by the specified factor.
func (_edd Vector )Scale (factor float64 )Vector {_eae :=_edd .Magnitude ();_acb :=_edd .GetPolarAngle ();_edd .Dx =factor *_eae *_f .Cos (_acb );_edd .Dy =factor *_eae *_f .Sin (_acb );return _edd ;};const (LineEndingStyleNone LineEndingStyle =0;LineEndingStyleArrow LineEndingStyle =1;LineEndingStyleButt LineEndingStyle =2;);
func (_egbc Vector )Scale (factor float64 )Vector {_dac :=_egbc .Magnitude ();_egg :=_egbc .GetPolarAngle ();_egbc .Dx =factor *_dac *_e .Cos (_egg );_egbc .Dy =factor *_dac *_e .Sin (_egg );return _egbc ;};
// FlipY flips the sign of the Dy component of the vector.
func (_bfa Vector )FlipY ()Vector {_bfa .Dy =-_bfa .Dy ;return _bfa };
// Add shifts the coordinates of the point with dx, dy and returns the result.
func (_ba Point )Add (dx ,dy float64 )Point {_ba .X +=dx ;_ba .Y +=dy ;return _ba };
// AddVector adds vector to a point.
func (_fgb Point )AddVector (v Vector )Point {_fgb .X +=v .Dx ;_fgb .Y +=v .Dy ;return _fgb };
// Magnitude returns the magnitude of the vector.
func (_cfge Vector )Magnitude ()float64 {return _e .Sqrt (_e .Pow (_cfge .Dx ,2.0)+_e .Pow (_cfge .Dy ,2.0));};
// Draw draws the line to PDF contentstream. Generates the content stream which can be used in page contents or
// appearance stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error
// if one occurred.
func (_ggfa Line )Draw (gsName string )([]byte ,*_eb .PdfRectangle ,error ){_bde ,_dfa :=_ggfa .X1 ,_ggfa .X2 ;_cdg ,_ef :=_ggfa .Y1 ,_ggfa .Y2 ;_egf :=_ef -_cdg ;_ceb :=_dfa -_bde ;_fea :=_f .Atan2 (_egf ,_ceb );L :=_f .Sqrt (_f .Pow (_ceb ,2.0)+_f .Pow (_egf ,2.0));_dec :=_ggfa .LineWidth ;_fgba :=_f .Pi ;_db :=1.0;if _ceb < 0{_db *=-1.0;};if _egf < 0{_db *=-1.0;};VsX :=_db *(-_dec /2*_f .Cos (_fea +_fgba /2));VsY :=_db *(-_dec /2*_f .Sin (_fea +_fgba /2)+_dec *_f .Sin (_fea +_fgba /2));V1X :=VsX +_dec /2*_f .Cos (_fea +_fgba /2);V1Y :=VsY +_dec /2*_f .Sin (_fea +_fgba /2);V2X :=VsX +_dec /2*_f .Cos (_fea +_fgba /2)+L *_f .Cos (_fea );V2Y :=VsY +_dec /2*_f .Sin (_fea +_fgba /2)+L *_f .Sin (_fea );V3X :=VsX +_dec /2*_f .Cos (_fea +_fgba /2)+L *_f .Cos (_fea )+_dec *_f .Cos (_fea -_fgba /2);V3Y :=VsY +_dec /2*_f .Sin (_fea +_fgba /2)+L *_f .Sin (_fea )+_dec *_f .Sin (_fea -_fgba /2);V4X :=VsX +_dec /2*_f .Cos (_fea -_fgba /2);V4Y :=VsY +_dec /2*_f .Sin (_fea -_fgba /2);_bcg :=NewPath ();_bcg =_bcg .AppendPoint (NewPoint (V1X ,V1Y ));_bcg =_bcg .AppendPoint (NewPoint (V2X ,V2Y ));_bcg =_bcg .AppendPoint (NewPoint (V3X ,V3Y ));_bcg =_bcg .AppendPoint (NewPoint (V4X ,V4Y ));_gdf :=_ggfa .LineEndingStyle1 ;_cg :=_ggfa .LineEndingStyle2 ;_ba :=3*_dec ;_bbe :=3*_dec ;_gfd :=(_bbe -_dec )/2;if _cg ==LineEndingStyleArrow {_bab :=_bcg .GetPointNumber (2);_fdg :=NewVectorPolar (_ba ,_fea +_fgba );_ad :=_bab .AddVector (_fdg );_egg :=NewVectorPolar (_bbe /2,_fea +_fgba /2);_dbc :=NewVectorPolar (_ba ,_fea );_bfd :=NewVectorPolar (_gfd ,_fea +_fgba /2);_ec :=_ad .AddVector (_bfd );_decg :=_dbc .Add (_egg .Flip ());_afa :=_ec .AddVector (_decg );_fdc :=_egg .Scale (2).Flip ().Add (_decg .Flip ());_cbc :=_afa .AddVector (_fdc );_fgcc :=_ad .AddVector (NewVectorPolar (_dec ,_fea -_fgba /2));_dcf :=NewPath ();_dcf =_dcf .AppendPoint (_bcg .GetPointNumber (1));_dcf =_dcf .AppendPoint (_ad );_dcf =_dcf .AppendPoint (_ec );_dcf =_dcf .AppendPoint (_afa );_dcf =_dcf .AppendPoint (_cbc );_dcf =_dcf .AppendPoint (_fgcc );_dcf =_dcf .AppendPoint (_bcg .GetPointNumber (4));_bcg =_dcf ;};if _gdf ==LineEndingStyleArrow {_bcb :=_bcg .GetPointNumber (1);_aee :=_bcg .GetPointNumber (_bcg .Length ());_abd :=NewVectorPolar (_dec /2,_fea +_fgba +_fgba /2);_ace :=_bcb .AddVector (_abd );_deg :=NewVectorPolar (_ba ,_fea ).Add (NewVectorPolar (_bbe /2,_fea +_fgba /2));_gce :=_ace .AddVector (_deg );_dege :=NewVectorPolar (_gfd ,_fea -_fgba /2);_cc :=_gce .AddVector (_dege );_bfc :=NewVectorPolar (_ba ,_fea );_cbd :=_aee .AddVector (_bfc );_bgf :=NewVectorPolar (_gfd ,_fea +_fgba +_fgba /2);_cab :=_cbd .AddVector (_bgf );_eed :=_ace ;_edg :=NewPath ();_edg =_edg .AppendPoint (_ace );_edg =_edg .AppendPoint (_gce );_edg =_edg .AppendPoint (_cc );for _ ,_dee :=range _bcg .Points [1:len (_bcg .Points )-1]{_edg =_edg .AppendPoint (_dee );};_edg =_edg .AppendPoint (_cbd );_edg =_edg .AppendPoint (_cab );_edg =_edg .AppendPoint (_eed );_bcg =_edg ;};_cff :=_ab .NewContentCreator ();_cff .Add_q ().Add_rg (_ggfa .LineColor .R (),_ggfa .LineColor .G (),_ggfa .LineColor .B ());if len (gsName )> 1{_cff .Add_gs (_b .PdfObjectName (gsName ));};_bcg =_bcg .Offset (_ggfa .X1 ,_ggfa .Y1 );_fcdg :=_bcg .GetBoundingBox ();DrawPathWithCreator (_bcg ,_cff );if _ggfa .LineStyle ==LineStyleDashed {_cff .Add_d ([]int64 {1,1},0).Add_S ().Add_f ().Add_Q ();}else {_cff .Add_f ().Add_Q ();};return _cff .Bytes (),_fcdg .ToPdfRectangle (),nil ;};
// Polygon is a multi-point shape that can be drawn to a PDF content stream.
type Polygon struct{Points [][]Point ;FillEnabled bool ;FillColor *_cg .PdfColorDeviceRGB ;BorderEnabled bool ;BorderColor *_cg .PdfColorDeviceRGB ;BorderWidth float64 ;};
// Add adds the specified vector to the current one and returns the result.
func (_aeac Vector )Add (other Vector )Vector {_aeac .Dx +=other .Dx ;_aeac .Dy +=other .Dy ;return _aeac ;};
// GetPolarAngle returns the angle the magnitude of the vector forms with the
// positive X-axis going counterclockwise.
func (_ffd Vector )GetPolarAngle ()float64 {return _e .Atan2 (_ffd .Dy ,_ffd .Dx )};
// Vector represents a two-dimensional vector.
type Vector struct{Dx float64 ;Dy float64 ;};
// NewVectorPolar returns a new vector calculated from the specified
// magnitude and angle.
func NewVectorPolar (length float64 ,theta float64 )Vector {_bcd :=Vector {};_bcd .Dx =length *_e .Cos (theta );_bcd .Dy =length *_e .Sin (theta );return _bcd ;};
// AddOffsetXY adds X,Y offset to all points on a curve.
func (_eg CubicBezierCurve )AddOffsetXY (offX ,offY float64 )CubicBezierCurve {_eg .P0 .X +=offX ;_eg .P1 .X +=offX ;_eg .P2 .X +=offX ;_eg .P3 .X +=offX ;_eg .P0 .Y +=offY ;_eg .P1 .Y +=offY ;_eg .P2 .Y +=offY ;_eg .P3 .Y +=offY ;return _eg ;};
// NewVector returns a new vector with the direction specified by dx and dy.
func NewVector (dx ,dy float64 )Vector {_dba :=Vector {};_dba .Dx =dx ;_dba .Dy =dy ;return _dba };
// Draw draws the circle. Can specify a graphics state (gsName) for setting opacity etc. Otherwise leave empty ("").
// Returns the content stream as a byte array, the bounding box and an error on failure.
func (_bcc Circle )Draw (gsName string )([]byte ,*_cg .PdfRectangle ,error ){_bed :=_bcc .Width /2;_ga :=_bcc .Height /2;if _bcc .BorderEnabled {_bed -=_bcc .BorderWidth /2;_ga -=_bcc .BorderWidth /2;};_fe :=0.551784;_bbg :=_bed *_fe ;_dcb :=_ga *_fe ;
_gdf :=NewCubicBezierPath ();_gdf =_gdf .AppendCurve (NewCubicBezierCurve (-_bed ,0,-_bed ,_dcb ,-_bbg ,_ga ,0,_ga ));_gdf =_gdf .AppendCurve (NewCubicBezierCurve (0,_ga ,_bbg ,_ga ,_bed ,_dcb ,_bed ,0));_gdf =_gdf .AppendCurve (NewCubicBezierCurve (_bed ,0,_bed ,-_dcb ,_bbg ,-_ga ,0,-_ga ));
_gdf =_gdf .AppendCurve (NewCubicBezierCurve (0,-_ga ,-_bbg ,-_ga ,-_bed ,-_dcb ,-_bed ,0));_gdf =_gdf .Offset (_bed ,_ga );if _bcc .BorderEnabled {_gdf =_gdf .Offset (_bcc .BorderWidth /2,_bcc .BorderWidth /2);};if _bcc .X !=0||_bcc .Y !=0{_gdf =_gdf .Offset (_bcc .X ,_bcc .Y );
};_bcg :=_d .NewContentCreator ();_bcg .Add_q ();if _bcc .FillEnabled {_bcg .Add_rg (_bcc .FillColor .R (),_bcc .FillColor .G (),_bcc .FillColor .B ());};if _bcc .BorderEnabled {_bcg .Add_RG (_bcc .BorderColor .R (),_bcc .BorderColor .G (),_bcc .BorderColor .B ());
_bcg .Add_w (_bcc .BorderWidth );};if len (gsName )> 1{_bcg .Add_gs (_bf .PdfObjectName (gsName ));};DrawBezierPathWithCreator (_gdf ,_bcg );_bcg .Add_h ();if _bcc .FillEnabled &&_bcc .BorderEnabled {_bcg .Add_B ();}else if _bcc .FillEnabled {_bcg .Add_f ();
}else if _bcc .BorderEnabled {_bcg .Add_S ();};_bcg .Add_Q ();_ae :=_gdf .GetBoundingBox ();if _bcc .BorderEnabled {_ae .Height +=_bcc .BorderWidth ;_ae .Width +=_bcc .BorderWidth ;_ae .X -=_bcc .BorderWidth /2;_ae .Y -=_bcc .BorderWidth /2;};return _bcg .Bytes (),_ae .ToPdfRectangle (),nil ;
};
// LineStyle refers to how the line will be created.
type LineStyle int ;
// GetPointNumber returns the path point at the index specified by number.
// The index is 1-based.
func (_dgd Path )GetPointNumber (number int )Point {if number < 1||number > len (_dgd .Points ){return Point {};};return _dgd .Points [number -1];};
// Circle represents a circle shape with fill and border properties that can be drawn to a PDF content stream.
type Circle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_cg .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_cg .PdfColorDeviceRGB ;Opacity float64 ;};
// Line defines a line shape between point 1 (X1,Y1) and point 2 (X2,Y2). The line ending styles can be none (regular line),
// or arrows at either end. The line also has a specified width, color and opacity.
type Line struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_eb .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineEndingStyle1 LineEndingStyle ;LineEndingStyle2 LineEndingStyle ;LineStyle LineStyle ;};
// Copy returns a clone of the path.
func (_cf Path )Copy ()Path {_cb :=Path {};_cb .Points =append (_cb .Points ,_cf .Points ...);return _cb ;};
// Polyline defines a slice of points that are connected as straight lines.
type Polyline struct{Points []Point ;LineColor *_cg .PdfColorDeviceRGB ;LineWidth float64 ;};
// NewCubicBezierCurve returns a new cubic Bezier curve.
func NewCubicBezierCurve (x0 ,y0 ,x1 ,y1 ,x2 ,y2 ,x3 ,y3 float64 )CubicBezierCurve {_dg :=CubicBezierCurve {};_dg .P0 =NewPoint (x0 ,y0 );_dg .P1 =NewPoint (x1 ,y1 );_dg .P2 =NewPoint (x2 ,y2 );_dg .P3 =NewPoint (x3 ,y3 );return _dg ;};
// NewPoint returns a new point with the coordinates x, y.
func NewPoint (x ,y float64 )Point {return Point {X :x ,Y :y }};
// Offset shifts the Bezier path with the specified offsets.
func (_fd CubicBezierPath )Offset (offX ,offY float64 )CubicBezierPath {for _fb ,_bb :=range _fd .Curves {_fd .Curves [_fb ]=_bb .AddOffsetXY (offX ,offY );};return _fd ;};
func (_ad CubicBezierPath )Offset (offX ,offY float64 )CubicBezierPath {for _be ,_ee :=range _ad .Curves {_ad .Curves [_be ]=_ee .AddOffsetXY (offX ,offY );};return _ad ;};
// PolyBezierCurve represents a composite curve that is the result of
// joining multiple cubic Bezier curves.
type PolyBezierCurve struct{Curves []CubicBezierCurve ;BorderWidth float64 ;BorderColor *_eb .PdfColorDeviceRGB ;FillEnabled bool ;FillColor *_eb .PdfColorDeviceRGB ;};
// Draw draws the polyline. A graphics state name can be specified for
// setting the polyline properties (e.g. setting the opacity). Otherwise leave
// empty (""). Returns the content stream as a byte array and the polyline
// bounding box.
func (_cda Polyline )Draw (gsName string )([]byte ,*_cg .PdfRectangle ,error ){if _cda .LineColor ==nil {_cda .LineColor =_cg .NewPdfColorDeviceRGB (0,0,0);};_bgc :=NewPath ();for _ ,_ddd :=range _cda .Points {_bgc =_bgc .AppendPoint (_ddd );};_cce :=_d .NewContentCreator ();
_cce .Add_q ();_cce .Add_RG (_cda .LineColor .R (),_cda .LineColor .G (),_cda .LineColor .B ());_cce .Add_w (_cda .LineWidth );if len (gsName )> 1{_cce .Add_gs (_bf .PdfObjectName (gsName ));};DrawPathWithCreator (_bgc ,_cce );_cce .Add_S ();_cce .Add_Q ();
return _cce .Bytes (),_bgc .GetBoundingBox ().ToPdfRectangle (),nil ;};
// DrawBezierPathWithCreator makes the bezier path with the content creator.
// Adds the PDF commands to draw the path to the creator instance.
func DrawBezierPathWithCreator (bpath CubicBezierPath ,creator *_d .ContentCreator ){for _ged ,_eeb :=range bpath .Curves {if _ged ==0{creator .Add_m (_eeb .P0 .X ,_eeb .P0 .Y );};creator .Add_c (_eeb .P1 .X ,_eeb .P1 .Y ,_eeb .P2 .X ,_eeb .P2 .Y ,_eeb .P3 .X ,_eeb .P3 .Y );
};};
// CubicBezierCurve is defined by:
// R(t) = P0*(1-t)^3 + P1*3*t*(1-t)^2 + P2*3*t^2*(1-t) + P3*t^3
// where P0 is the current point, P1, P2 control points and P3 the final point.
type CubicBezierCurve struct{P0 Point ;P1 Point ;P2 Point ;P3 Point ;};
// ToPdfRectangle returns the bounding box as a PDF rectangle.
func (_ebab BoundingBox )ToPdfRectangle ()*_eb .PdfRectangle {return &_eb .PdfRectangle {Llx :_ebab .X ,Lly :_ebab .Y ,Urx :_ebab .X +_ebab .Width ,Ury :_ebab .Y +_ebab .Height };};
// GetBoundingBox returns the bounding box of the path.
func (_gc Path )GetBoundingBox ()BoundingBox {_dc :=BoundingBox {};_eea :=0.0;_aad :=0.0;_ega :=0.0;_gcc :=0.0;for _ec ,_fb :=range _gc .Points {if _ec ==0{_eea =_fb .X ;_aad =_fb .X ;_ega =_fb .Y ;_gcc =_fb .Y ;continue ;};if _fb .X < _eea {_eea =_fb .X ;
};if _fb .X > _aad {_aad =_fb .X ;};if _fb .Y < _ega {_ega =_fb .Y ;};if _fb .Y > _gcc {_gcc =_fb .Y ;};};_dc .X =_eea ;_dc .Y =_ega ;_dc .Width =_aad -_eea ;_dc .Height =_gcc -_ega ;return _dc ;};
// AddVector adds vector to a point.
func (_bd Point )AddVector (v Vector )Point {_bd .X +=v .Dx ;_bd .Y +=v .Dy ;return _bd };const (LineStyleSolid LineStyle =0;LineStyleDashed LineStyle =1;);
// Line defines a line shape between point 1 (X1,Y1) and point 2 (X2,Y2). The line ending styles can be none (regular line),
// or arrows at either end. The line also has a specified width, color and opacity.
type Line struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_cg .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineEndingStyle1 LineEndingStyle ;LineEndingStyle2 LineEndingStyle ;LineStyle LineStyle ;};
// Draw draws the composite Bezier curve. A graphics state name can be
// specified for setting the curve properties (e.g. setting the opacity).
// Otherwise leave empty (""). Returns the content stream as a byte array and
// the curve bounding box.
func (_ggg PolyBezierCurve )Draw (gsName string )([]byte ,*_cg .PdfRectangle ,error ){if _ggg .BorderColor ==nil {_ggg .BorderColor =_cg .NewPdfColorDeviceRGB (0,0,0);};_fdee :=NewCubicBezierPath ();for _ ,_gdg :=range _ggg .Curves {_fdee =_fdee .AppendCurve (_gdg );
};_gccd :=_d .NewContentCreator ();_gccd .Add_q ();_ggg .FillEnabled =_ggg .FillEnabled &&_ggg .FillColor !=nil ;if _ggg .FillEnabled {_gccd .Add_rg (_ggg .FillColor .R (),_ggg .FillColor .G (),_ggg .FillColor .B ());};_gccd .Add_RG (_ggg .BorderColor .R (),_ggg .BorderColor .G (),_ggg .BorderColor .B ());
_gccd .Add_w (_ggg .BorderWidth );if len (gsName )> 1{_gccd .Add_gs (_bf .PdfObjectName (gsName ));};for _ ,_gggb :=range _fdee .Curves {_gccd .Add_m (_gggb .P0 .X ,_gggb .P0 .Y );_gccd .Add_c (_gggb .P1 .X ,_gggb .P1 .Y ,_gggb .P2 .X ,_gggb .P2 .Y ,_gggb .P3 .X ,_gggb .P3 .Y );
};if _ggg .FillEnabled {_gccd .Add_h ();_gccd .Add_B ();}else {_gccd .Add_S ();};_gccd .Add_Q ();return _gccd .Bytes (),_fdee .GetBoundingBox ().ToPdfRectangle (),nil ;};
// DrawPathWithCreator makes the path with the content creator.
// Adds the PDF commands to draw the path to the creator instance.
func DrawPathWithCreator (path Path ,creator *_ab .ContentCreator ){for _caa ,_deb :=range path .Points {if _caa ==0{creator .Add_m (_deb .X ,_deb .Y );}else {creator .Add_l (_deb .X ,_deb .Y );};};};
func DrawPathWithCreator (path Path ,creator *_d .ContentCreator ){for _bag ,_eba :=range path .Points {if _bag ==0{creator .Add_m (_eba .X ,_eba .Y );}else {creator .Add_l (_eba .X ,_eba .Y );};};};
// Rotate rotates the vector by the specified angle.
func (_dcd Vector )Rotate (phi float64 )Vector {_cca :=_dcd .Magnitude ();_bec :=_dcd .GetPolarAngle ();return NewVectorPolar (_cca ,_bec +phi );};
// AppendCurve appends the specified Bezier curve to the path.
func (_f CubicBezierPath )AppendCurve (curve CubicBezierCurve )CubicBezierPath {_f .Curves =append (_f .Curves ,curve );return _f ;};
// Polygon is a multi-point shape that can be drawn to a PDF content stream.
type Polygon struct{Points [][]Point ;FillEnabled bool ;FillColor *_eb .PdfColorDeviceRGB ;BorderEnabled bool ;BorderColor *_eb .PdfColorDeviceRGB ;BorderWidth float64 ;};
// Path consists of straight line connections between each point defined in an array of points.
type Path struct{Points []Point ;};
// Copy returns a clone of the Bezier path.
func (_ddd CubicBezierPath )Copy ()CubicBezierPath {_dc :=CubicBezierPath {};_dc .Curves =append (_dc .Curves ,_ddd .Curves ...);return _dc ;};
// Draw draws the circle. Can specify a graphics state (gsName) for setting opacity etc. Otherwise leave empty ("").
// Returns the content stream as a byte array, the bounding box and an error on failure.
func (_gfc Circle )Draw (gsName string )([]byte ,*_eb .PdfRectangle ,error ){_abg :=_gfc .Width /2;_cbe :=_gfc .Height /2;if _gfc .BorderEnabled {_abg -=_gfc .BorderWidth /2;_cbe -=_gfc .BorderWidth /2;};_fcd :=0.551784;_fde :=_abg *_fcd ;_gfb :=_cbe *_fcd ;_ff :=NewCubicBezierPath ();_ff =_ff .AppendCurve (NewCubicBezierCurve (-_abg ,0,-_abg ,_gfb ,-_fde ,_cbe ,0,_cbe ));_ff =_ff .AppendCurve (NewCubicBezierCurve (0,_cbe ,_fde ,_cbe ,_abg ,_gfb ,_abg ,0));_ff =_ff .AppendCurve (NewCubicBezierCurve (_abg ,0,_abg ,-_gfb ,_fde ,-_cbe ,0,-_cbe ));_ff =_ff .AppendCurve (NewCubicBezierCurve (0,-_cbe ,-_fde ,-_cbe ,-_abg ,-_gfb ,-_abg ,0));_ff =_ff .Offset (_abg ,_cbe );if _gfc .BorderEnabled {_ff =_ff .Offset (_gfc .BorderWidth /2,_gfc .BorderWidth /2);};if _gfc .X !=0||_gfc .Y !=0{_ff =_ff .Offset (_gfc .X ,_gfc .Y );};_abc :=_ab .NewContentCreator ();_abc .Add_q ();if _gfc .FillEnabled {_abc .Add_rg (_gfc .FillColor .R (),_gfc .FillColor .G (),_gfc .FillColor .B ());};if _gfc .BorderEnabled {_abc .Add_RG (_gfc .BorderColor .R (),_gfc .BorderColor .G (),_gfc .BorderColor .B ());_abc .Add_w (_gfc .BorderWidth );};if len (gsName )> 1{_abc .Add_gs (_b .PdfObjectName (gsName ));};DrawBezierPathWithCreator (_ff ,_abc );_abc .Add_h ();if _gfc .FillEnabled &&_gfc .BorderEnabled {_abc .Add_B ();}else if _gfc .FillEnabled {_abc .Add_f ();}else if _gfc .BorderEnabled {_abc .Add_S ();};_abc .Add_Q ();_feg :=_ff .GetBoundingBox ();if _gfc .BorderEnabled {_feg .Height +=_gfc .BorderWidth ;_feg .Width +=_gfc .BorderWidth ;_feg .X -=_gfc .BorderWidth /2;_feg .Y -=_gfc .BorderWidth /2;};return _abc .Bytes (),_feg .ToPdfRectangle (),nil ;};
// GetBoundingBox returns the bounding box of the Bezier path.
func (_fg CubicBezierPath )GetBoundingBox ()Rectangle {_g :=Rectangle {};_afc :=0.0;_fba :=0.0;_fbg :=0.0;_dde :=0.0;for _be ,_cd :=range _fg .Curves {_dfc :=_cd .GetBounds ();if _be ==0{_afc =_dfc .Llx ;_fba =_dfc .Urx ;_fbg =_dfc .Lly ;_dde =_dfc .Ury ;continue ;};if _dfc .Llx < _afc {_afc =_dfc .Llx ;};if _dfc .Urx > _fba {_fba =_dfc .Urx ;};if _dfc .Lly < _fbg {_fbg =_dfc .Lly ;};if _dfc .Ury > _dde {_dde =_dfc .Ury ;};};_g .X =_afc ;_g .Y =_fbg ;_g .Width =_fba -_afc ;_g .Height =_dde -_fbg ;return _g ;};
// NewVector returns a new vector with the direction specified by dx and dy.
func NewVector (dx ,dy float64 )Vector {_bfb :=Vector {};_bfb .Dx =dx ;_bfb .Dy =dy ;return _bfb };
// AddOffsetXY adds X,Y offset to all points on a curve.
func (_bc CubicBezierCurve )AddOffsetXY (offX ,offY float64 )CubicBezierCurve {_bc .P0 .X +=offX ;_bc .P1 .X +=offX ;_bc .P2 .X +=offX ;_bc .P3 .X +=offX ;_bc .P0 .Y +=offY ;_bc .P1 .Y +=offY ;_bc .P2 .Y +=offY ;_bc .P3 .Y +=offY ;return _bc ;};
// Flip changes the sign of the vector: -vector.
func (_ebgg Vector )Flip ()Vector {_cef :=_ebgg .Magnitude ();_fbf :=_ebgg .GetPolarAngle ();_ebgg .Dx =_cef *_f .Cos (_fbf +_f .Pi );_ebgg .Dy =_cef *_f .Sin (_fbf +_f .Pi );return _ebgg ;};
func (_bgb Vector )Flip ()Vector {_cfcb :=_bgb .Magnitude ();_dgg :=_bgb .GetPolarAngle ();_bgb .Dx =_cfcb *_e .Cos (_dgg +_e .Pi );_bgb .Dy =_cfcb *_e .Sin (_dgg +_e .Pi );return _bgb ;};func (_gg Point )String ()string {return _c .Sprintf ("(\u0025\u002e\u0031\u0066\u002c\u0025\u002e\u0031\u0066\u0029",_gg .X ,_gg .Y );
};
// FlipY flips the sign of the Dy component of the vector.
func (_gga Vector )FlipY ()Vector {_gga .Dy =-_gga .Dy ;return _gga };
// Add adds the specified vector to the current one and returns the result.
func (_fbb Vector )Add (other Vector )Vector {_fbb .Dx +=other .Dx ;_fbb .Dy +=other .Dy ;return _fbb };
// BasicLine defines a line between point 1 (X1,Y1) and point 2 (X2,Y2). The line has a specified width, color and opacity.
type BasicLine struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_cg .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineStyle LineStyle ;};
// GetBounds returns the bounding box of the Bezier curve.
func (_a CubicBezierCurve )GetBounds ()_cg .PdfRectangle {_bg :=_a .P0 .X ;_bb :=_a .P0 .X ;_cd :=_a .P0 .Y ;_g :=_a .P0 .Y ;for _cea :=0.0;_cea <=1.0;_cea +=0.001{Rx :=_a .P0 .X *_e .Pow (1-_cea ,3)+_a .P1 .X *3*_cea *_e .Pow (1-_cea ,2)+_a .P2 .X *3*_e .Pow (_cea ,2)*(1-_cea )+_a .P3 .X *_e .Pow (_cea ,3);
Ry :=_a .P0 .Y *_e .Pow (1-_cea ,3)+_a .P1 .Y *3*_cea *_e .Pow (1-_cea ,2)+_a .P2 .Y *3*_e .Pow (_cea ,2)*(1-_cea )+_a .P3 .Y *_e .Pow (_cea ,3);if Rx < _bg {_bg =Rx ;};if Rx > _bb {_bb =Rx ;};if Ry < _cd {_cd =Ry ;};if Ry > _g {_g =Ry ;};};_ed :=_cg .PdfRectangle {};
_ed .Llx =_bg ;_ed .Lly =_cd ;_ed .Urx =_bb ;_ed .Ury =_g ;return _ed ;};
// Rotate rotates the vector by the specified angle.
func (_fbee Vector )Rotate (phi float64 )Vector {_dfd :=_fbee .Magnitude ();_fed :=_fbee .GetPolarAngle ();return NewVectorPolar (_dfd ,_fed +phi );};
// Draw draws the polygon. A graphics state name can be specified for
// setting the polygon properties (e.g. setting the opacity). Otherwise leave
// empty (""). Returns the content stream as a byte array and the polygon
// bounding box.
func (_gdfg Polygon )Draw (gsName string )([]byte ,*_cg .PdfRectangle ,error ){_cfg :=_d .NewContentCreator ();_cfg .Add_q ();_gdfg .FillEnabled =_gdfg .FillEnabled &&_gdfg .FillColor !=nil ;if _gdfg .FillEnabled {_cfg .Add_rg (_gdfg .FillColor .R (),_gdfg .FillColor .G (),_gdfg .FillColor .B ());
};_gdfg .BorderEnabled =_gdfg .BorderEnabled &&_gdfg .BorderColor !=nil ;if _gdfg .BorderEnabled {_cfg .Add_RG (_gdfg .BorderColor .R (),_gdfg .BorderColor .G (),_gdfg .BorderColor .B ());_cfg .Add_w (_gdfg .BorderWidth );};if len (gsName )> 1{_cfg .Add_gs (_bf .PdfObjectName (gsName ));
};_egb :=NewPath ();for _ ,_feg :=range _gdfg .Points {for _bfd ,_fg :=range _feg {_egb =_egb .AppendPoint (_fg );if _bfd ==0{_cfg .Add_m (_fg .X ,_fg .Y );}else {_cfg .Add_l (_fg .X ,_fg .Y );};};_cfg .Add_h ();};if _gdfg .FillEnabled &&_gdfg .BorderEnabled {_cfg .Add_B ();
}else if _gdfg .FillEnabled {_cfg .Add_f ();}else if _gdfg .BorderEnabled {_cfg .Add_S ();};_cfg .Add_Q ();return _cfg .Bytes (),_egb .GetBoundingBox ().ToPdfRectangle (),nil ;};
// AppendPoint adds the specified point to the path.
func (_eef Path )AppendPoint (point Point )Path {_eef .Points =append (_eef .Points ,point );return _eef };
// GetBoundingBox returns the bounding box of the Bezier path.
func (_db CubicBezierPath )GetBoundingBox ()Rectangle {_ea :=Rectangle {};_fa :=0.0;_aa :=0.0;_fdc :=0.0;_gf :=0.0;for _fc ,_fab :=range _db .Curves {_bca :=_fab .GetBounds ();if _fc ==0{_fa =_bca .Llx ;_aa =_bca .Urx ;_fdc =_bca .Lly ;_gf =_bca .Ury ;
continue ;};if _bca .Llx < _fa {_fa =_bca .Llx ;};if _bca .Urx > _aa {_aa =_bca .Urx ;};if _bca .Lly < _fdc {_fdc =_bca .Lly ;};if _bca .Ury > _gf {_gf =_bca .Ury ;};};_ea .X =_fa ;_ea .Y =_fdc ;_ea .Width =_aa -_fa ;_ea .Height =_gf -_fdc ;return _ea ;
};
// Draw draws the basic line to PDF. Generates the content stream which can be used in page contents or appearance
// stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error if
// one occurred.
func (_gb BasicLine )Draw (gsName string )([]byte ,*_cg .PdfRectangle ,error ){_dff :=_gb .LineWidth ;_cad :=NewPath ();_cad =_cad .AppendPoint (NewPoint (_gb .X1 ,_gb .Y1 ));_cad =_cad .AppendPoint (NewPoint (_gb .X2 ,_gb .Y2 ));_gaa :=_d .NewContentCreator ();
_baeb :=_cad .GetBoundingBox ();DrawPathWithCreator (_cad ,_gaa );if _gb .LineStyle ==LineStyleDashed {_gaa .Add_d ([]int64 {1,1},0);};_gaa .Add_RG (_gb .LineColor .R (),_gb .LineColor .G (),_gb .LineColor .B ()).Add_w (_dff ).Add_S ().Add_Q ();return _gaa .Bytes (),_baeb .ToPdfRectangle (),nil ;
};
// Draw draws the line to PDF contentstream. Generates the content stream which can be used in page contents or
// appearance stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error
// if one occurred.
func (_ag Line )Draw (gsName string )([]byte ,*_cg .PdfRectangle ,error ){_fdg ,_bbe :=_ag .X1 ,_ag .X2 ;_fbe ,_ca :=_ag .Y1 ,_ag .Y2 ;_edb :=_ca -_fbe ;_feb :=_bbe -_fdg ;_gag :=_e .Atan2 (_edb ,_feb );L :=_e .Sqrt (_e .Pow (_feb ,2.0)+_e .Pow (_edb ,2.0));
_dd :=_ag .LineWidth ;_af :=_e .Pi ;_cgb :=1.0;if _feb < 0{_cgb *=-1.0;};if _edb < 0{_cgb *=-1.0;};VsX :=_cgb *(-_dd /2*_e .Cos (_gag +_af /2));VsY :=_cgb *(-_dd /2*_e .Sin (_gag +_af /2)+_dd *_e .Sin (_gag +_af /2));V1X :=VsX +_dd /2*_e .Cos (_gag +_af /2);
V1Y :=VsY +_dd /2*_e .Sin (_gag +_af /2);V2X :=VsX +_dd /2*_e .Cos (_gag +_af /2)+L *_e .Cos (_gag );V2Y :=VsY +_dd /2*_e .Sin (_gag +_af /2)+L *_e .Sin (_gag );V3X :=VsX +_dd /2*_e .Cos (_gag +_af /2)+L *_e .Cos (_gag )+_dd *_e .Cos (_gag -_af /2);V3Y :=VsY +_dd /2*_e .Sin (_gag +_af /2)+L *_e .Sin (_gag )+_dd *_e .Sin (_gag -_af /2);
V4X :=VsX +_dd /2*_e .Cos (_gag -_af /2);V4Y :=VsY +_dd /2*_e .Sin (_gag -_af /2);_bae :=NewPath ();_bae =_bae .AppendPoint (NewPoint (V1X ,V1Y ));_bae =_bae .AppendPoint (NewPoint (V2X ,V2Y ));_bae =_bae .AppendPoint (NewPoint (V3X ,V3Y ));_bae =_bae .AppendPoint (NewPoint (V4X ,V4Y ));
_aee :=_ag .LineEndingStyle1 ;_eeg :=_ag .LineEndingStyle2 ;_cae :=3*_dd ;_eb :=3*_dd ;_fbf :=(_eb -_dd )/2;if _eeg ==LineEndingStyleArrow {_dfc :=_bae .GetPointNumber (2);_cfe :=NewVectorPolar (_cae ,_gag +_af );_bfb :=_dfc .AddVector (_cfe );_gac :=NewVectorPolar (_eb /2,_gag +_af /2);
_fea :=NewVectorPolar (_cae ,_gag );_fdd :=NewVectorPolar (_fbf ,_gag +_af /2);_eec :=_bfb .AddVector (_fdd );_da :=_fea .Add (_gac .Flip ());_add :=_eec .AddVector (_da );_fgc :=_gac .Scale (2).Flip ().Add (_da .Flip ());_gdff :=_add .AddVector (_fgc );
_gfd :=_bfb .AddVector (NewVectorPolar (_dd ,_gag -_af /2));_gccb :=NewPath ();_gccb =_gccb .AppendPoint (_bae .GetPointNumber (1));_gccb =_gccb .AppendPoint (_bfb );_gccb =_gccb .AppendPoint (_eec );_gccb =_gccb .AppendPoint (_add );_gccb =_gccb .AppendPoint (_gdff );
_gccb =_gccb .AppendPoint (_gfd );_gccb =_gccb .AppendPoint (_bae .GetPointNumber (4));_bae =_gccb ;};if _aee ==LineEndingStyleArrow {_agf :=_bae .GetPointNumber (1);_ceb :=_bae .GetPointNumber (_bae .Length ());_edd :=NewVectorPolar (_dd /2,_gag +_af +_af /2);
_egf :=_agf .AddVector (_edd );_agb :=NewVectorPolar (_cae ,_gag ).Add (NewVectorPolar (_eb /2,_gag +_af /2));_edg :=_egf .AddVector (_agb );_cfd :=NewVectorPolar (_fbf ,_gag -_af /2);_bdg :=_edg .AddVector (_cfd );_ebb :=NewVectorPolar (_cae ,_gag );_fgd :=_ceb .AddVector (_ebb );
_fac :=NewVectorPolar (_fbf ,_gag +_af +_af /2);_fgb :=_fgd .AddVector (_fac );_dab :=_egf ;_gcb :=NewPath ();_gcb =_gcb .AppendPoint (_egf );_gcb =_gcb .AppendPoint (_edg );_gcb =_gcb .AppendPoint (_bdg );for _ ,_ebba :=range _bae .Points [1:len (_bae .Points )-1]{_gcb =_gcb .AppendPoint (_ebba );
};_gcb =_gcb .AppendPoint (_fgd );_gcb =_gcb .AppendPoint (_fgb );_gcb =_gcb .AppendPoint (_dab );_bae =_gcb ;};_dcg :=_d .NewContentCreator ();_dcg .Add_q ().Add_rg (_ag .LineColor .R (),_ag .LineColor .G (),_ag .LineColor .B ());if len (gsName )> 1{_dcg .Add_gs (_bf .PdfObjectName (gsName ));
};_bae =_bae .Offset (_ag .X1 ,_ag .Y1 );_cbe :=_bae .GetBoundingBox ();DrawPathWithCreator (_bae ,_dcg );if _ag .LineStyle ==LineStyleDashed {_dcg .Add_d ([]int64 {1,1},0).Add_S ().Add_f ().Add_Q ();}else {_dcg .Add_f ().Add_Q ();};return _dcg .Bytes (),_cbe .ToPdfRectangle (),nil ;
};
// Draw draws the rectangle. Can specify a graphics state (gsName) for setting opacity etc.
// Otherwise leave empty (""). Returns the content stream as a byte array, bounding box and an error on failure.
func (_cfc Rectangle )Draw (gsName string )([]byte ,*_cg .PdfRectangle ,error ){_ab :=NewPath ();_ab =_ab .AppendPoint (NewPoint (0,0));_ab =_ab .AppendPoint (NewPoint (0,_cfc .Height ));_ab =_ab .AppendPoint (NewPoint (_cfc .Width ,_cfc .Height ));_ab =_ab .AppendPoint (NewPoint (_cfc .Width ,0));
_ab =_ab .AppendPoint (NewPoint (0,0));if _cfc .X !=0||_cfc .Y !=0{_ab =_ab .Offset (_cfc .X ,_cfc .Y );};_cbb :=_d .NewContentCreator ();_cbb .Add_q ();if _cfc .FillEnabled {_cbb .Add_rg (_cfc .FillColor .R (),_cfc .FillColor .G (),_cfc .FillColor .B ());
};if _cfc .BorderEnabled {_cbb .Add_RG (_cfc .BorderColor .R (),_cfc .BorderColor .G (),_cfc .BorderColor .B ());_cbb .Add_w (_cfc .BorderWidth );};if len (gsName )> 1{_cbb .Add_gs (_bf .PdfObjectName (gsName ));};DrawPathWithCreator (_ab ,_cbb );_cbb .Add_h ();
if _cfc .FillEnabled &&_cfc .BorderEnabled {_cbb .Add_B ();}else if _cfc .FillEnabled {_cbb .Add_f ();}else if _cfc .BorderEnabled {_cbb .Add_S ();};_cbb .Add_Q ();return _cbb .Bytes (),_ab .GetBoundingBox ().ToPdfRectangle (),nil ;};
// Rotate returns a new Point at `p` rotated by `theta` degrees.
func (_bg Point )Rotate (theta float64 )Point {_fa :=_af .NewPoint (_bg .X ,_bg .Y ).Rotate (theta );return NewPoint (_fa .X ,_fa .Y );};
func (_ac Point )Rotate (theta float64 )Point {_cec :=_ce .NewPoint (_ac .X ,_ac .Y ).Rotate (theta );return NewPoint (_cec .X ,_cec .Y );};
// NewVectorPolar returns a new vector calculated from the specified
// magnitude and angle.
func NewVectorPolar (length float64 ,theta float64 )Vector {_aeb :=Vector {};_aeb .Dx =length *_f .Cos (theta );_aeb .Dy =length *_f .Sin (theta );return _aeb ;};
// RemovePoint removes the point at the index specified by number from the
// path. The index is 1-based.
func (_bgd Path )RemovePoint (number int )Path {if number < 1||number > len (_bgd .Points ){return _bgd ;};_fde :=number -1;_bgd .Points =append (_bgd .Points [:_fde ],_bgd .Points [_fde +1:]...);return _bgd ;};
// NewPath returns a new empty path.
func NewPath ()Path {return Path {}};
// Vector represents a two-dimensional vector.
type Vector struct{Dx float64 ;Dy float64 ;};
// BoundingBox represents the smallest rectangular area that encapsulates an object.
type BoundingBox struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;};
// Rectangle is a shape with a specified Width and Height and a lower left corner at (X,Y) that can be
// drawn to a PDF content stream. The rectangle can optionally have a border and a filling color.
// The Width/Height includes the border (if any specified), i.e. is positioned inside.
type Rectangle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_cg .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_cg .PdfColorDeviceRGB ;Opacity float64 ;};

2513
core/core.go
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155
core/security/crypt/crypt.go
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@ -9,73 +9,53 @@
// 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 crypt ;import (_a "crypto/aes";_g "crypto/cipher";_c "crypto/md5";_ea "crypto/rand";_bac "crypto/rc4";_ba "fmt";_ed "github.com/unidoc/unipdf/v3/common";_ac "github.com/unidoc/unipdf/v3/core/security";_e "io";);func init (){_abd ("\u0041\u0045\u0053V\u0032",_gc )};
package crypt ;import (_b "crypto/aes";_fe "crypto/cipher";_be "crypto/md5";_a "crypto/rand";_c "crypto/rc4";_g "fmt";_aa "github.com/unidoc/unipdf/v3/common";_ba "github.com/unidoc/unipdf/v3/core/security";_fc "io";);func init (){_bea ("\u0041\u0045\u0053V\u0032",_af )};
// NewFilterV2 creates a RC4-based filter with a specified key length (in bytes).
func NewFilterV2 (length int )Filter {_ff ,_gg :=_gce (FilterDict {Length :length });if _gg !=nil {_ed .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020R\u0043\u0034\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_gg );return filterV2 {_da :length };};return _ff ;};
// PDFVersion implements Filter interface.
func (filterAESV3 )PDFVersion ()[2]int {return [2]int {2,0}};
// EncryptBytes implements Filter interface.
func (filterV2 )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_eee ,_gcd :=_c .NewCipher (okey );if _gcd !=nil {return nil ,_gcd ;};_aa .Log .Trace ("\u0052\u00434\u0020\u0045\u006ec\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );
_eee .XORKeyStream (buf ,buf );_aa .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};
// NewFilterAESV3 creates an AES-based filter with a 256 bit key (AESV3).
func NewFilterAESV3 ()Filter {_gc ,_bf :=_cf (FilterDict {});if _bf !=nil {_aa .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0033\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_bf );
return filterAESV3 {};};return _gc ;};var _ Filter =filterAESV2 {};func (filterIdentity )PDFVersion ()[2]int {return [2]int {}};
// Name implements Filter interface.
func (filterAESV3 )Name ()string {return "\u0041\u0045\u0053V\u0033"};
// Name implements Filter interface.
func (filterV2 )Name ()string {return "\u0056\u0032"};type filterAESV3 struct{filterAES };func (filterIdentity )MakeKey (objNum ,genNum uint32 ,fkey []byte )([]byte ,error ){return fkey ,nil };func init (){_bea ("\u0041\u0045\u0053V\u0033",_cf )};
// NewIdentity creates an identity filter that bypasses all data without changes.
func NewIdentity ()Filter {return filterIdentity {}};func (filterIdentity )DecryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };
// MakeKey implements Filter interface.
func (filterAESV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _aaf (objNum ,genNum ,ekey ,true );};func _fed (_gdd string )(filterFunc ,error ){_bcg :=_fcf [_gdd ];if _bcg ==nil {return nil ,_g .Errorf ("\u0075\u006e\u0073\u0075p\u0070\u006f\u0072\u0074\u0065\u0064\u0020\u0063\u0072\u0079p\u0074 \u0066\u0069\u006c\u0074\u0065\u0072\u003a \u0025\u0071",_gdd );
};return _bcg ,nil ;};func _cf (_bd FilterDict )(Filter ,error ){if _bd .Length ==256{_aa .Log .Debug ("\u0041\u0045S\u0056\u0033\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_bd .Length );
_bd .Length /=8;};if _bd .Length !=0&&_bd .Length !=32{return nil ,_g .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0033\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_bd .Length );
};return filterAESV3 {},nil ;};
// PDFVersion implements Filter interface.
func (filterAESV2 )PDFVersion ()[2]int {return [2]int {1,5}};func _bea (_gb string ,_gba filterFunc ){if _ ,_fdf :=_fcf [_gb ];_fdf {panic ("\u0061l\u0072e\u0061\u0064\u0079\u0020\u0072e\u0067\u0069s\u0074\u0065\u0072\u0065\u0064");};_fcf [_gb ]=_gba ;
};
// MakeKey implements Filter interface.
func (filterAESV3 )MakeKey (_ ,_ uint32 ,ekey []byte )([]byte ,error ){return ekey ,nil };
// Name implements Filter interface.
func (filterV2 )Name ()string {return "\u0056\u0032"};type filterAES struct{};
// HandlerVersion implements Filter interface.
func (filterAESV3 )HandlerVersion ()(V ,R int ){V ,R =5,6;return ;};func _ab (_d FilterDict )(Filter ,error ){if _d .Length ==256{_ed .Log .Debug ("\u0041\u0045S\u0056\u0033\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_d .Length );_d .Length /=8;};if _d .Length !=0&&_d .Length !=32{return nil ,_ba .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0033\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_d .Length );};return filterAESV3 {},nil ;};var (_acb =make (map[string ]filterFunc ););
// MakeKey implements Filter interface.
func (filterAESV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _ebc (objNum ,genNum ,ekey ,true );};
// KeyLength implements Filter interface.
func (filterAESV3 )KeyLength ()int {return 256/8};func init (){_abd ("\u0041\u0045\u0053V\u0033",_ab )};func _aadf (_cad string )(filterFunc ,error ){_ceg :=_acb [_cad ];if _ceg ==nil {return nil ,_ba .Errorf ("\u0075\u006e\u0073\u0075p\u0070\u006f\u0072\u0074\u0065\u0064\u0020\u0063\u0072\u0079p\u0074 \u0066\u0069\u006c\u0074\u0065\u0072\u003a \u0025\u0071",_cad );};return _ceg ,nil ;};
// DecryptBytes implements Filter interface.
func (filterV2 )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_gfdd ,_eab :=_bac .NewCipher (okey );if _eab !=nil {return nil ,_eab ;};_ed .Log .Trace ("\u0052\u00434\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_gfdd .XORKeyStream (buf ,buf );_ed .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};func _gc (_gb FilterDict )(Filter ,error ){if _gb .Length ==128{_ed .Log .Debug ("\u0041\u0045S\u0056\u0032\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_gb .Length );_gb .Length /=8;};if _gb .Length !=0&&_gb .Length !=16{return nil ,_ba .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0032\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_gb .Length );};return filterAESV2 {},nil ;};
// EncryptBytes implements Filter interface.
func (filterV2 )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ddg ,_gfd :=_bac .NewCipher (okey );if _gfd !=nil {return nil ,_gfd ;};_ed .Log .Trace ("\u0052\u00434\u0020\u0045\u006ec\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_ddg .XORKeyStream (buf ,buf );_ed .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};func (filterIdentity )EncryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };
// PDFVersion implements Filter interface.
func (filterAESV3 )PDFVersion ()[2]int {return [2]int {2,0}};func (filterAES )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ga ,_ag :=_a .NewCipher (okey );if _ag !=nil {return nil ,_ag ;};if len (buf )< 16{_ed .Log .Debug ("\u0045R\u0052\u004f\u0052\u0020\u0041\u0045\u0053\u0020\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0062\u0075\u0066\u0020\u0025\u0073",buf );return buf ,_ba .Errorf ("\u0041\u0045\u0053\u003a B\u0075\u0066\u0020\u006c\u0065\u006e\u0020\u003c\u0020\u0031\u0036\u0020\u0028\u0025d\u0029",len (buf ));};_edc :=buf [:16];buf =buf [16:];if len (buf )%16!=0{_ed .Log .Debug ("\u0020\u0069\u0076\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (_edc ),_edc );_ed .Log .Debug ("\u0062\u0075\u0066\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,_ba .Errorf ("\u0041\u0045\u0053\u0020\u0062\u0075\u0066\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069p\u006c\u0065\u0020\u006f\u0066 \u0031\u0036 \u0028\u0025\u0064\u0029",len (buf ));};_gba :=_g .NewCBCDecrypter (_ga ,_edc );_ed .Log .Trace ("A\u0045\u0053\u0020\u0044ec\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );_ed .Log .Trace ("\u0063\u0068\u006f\u0070\u0020\u0041\u0045\u0053\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u0020\u0028\u0025\u0064\u0029\u003a \u0025\u0020\u0078",len (buf ),buf );_gba .CryptBlocks (buf ,buf );_ed .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );if len (buf )==0{_ed .Log .Trace ("\u0045\u006d\u0070\u0074\u0079\u0020b\u0075\u0066\u002c\u0020\u0072\u0065\u0074\u0075\u0072\u006e\u0069\u006e\u0067 \u0065\u006d\u0070\u0074\u0079\u0020\u0073t\u0072\u0069\u006e\u0067");return buf ,nil ;};_ec :=int (buf [len (buf )-1]);if _ec > len (buf ){_ed .Log .Debug ("\u0049\u006c\u006c\u0065g\u0061\u006c\u0020\u0070\u0061\u0064\u0020\u006c\u0065\u006eg\u0074h\u0020\u0028\u0025\u0064\u0020\u003e\u0020%\u0064\u0029",_ec ,len (buf ));return buf ,_ba .Errorf ("\u0069n\u0076a\u006c\u0069\u0064\u0020\u0070a\u0064\u0020l\u0065\u006e\u0067\u0074\u0068");};buf =buf [:len (buf )-_ec ];return buf ,nil ;};
// PDFVersion implements Filter interface.
func (filterAESV2 )PDFVersion ()[2]int {return [2]int {1,5}};type filterAESV3 struct{filterAES };
// NewFilterAESV3 creates an AES-based filter with a 256 bit key (AESV3).
func NewFilterAESV3 ()Filter {_be ,_gcf :=_ab (FilterDict {});if _gcf !=nil {_ed .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0033\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_gcf );return filterAESV3 {};};return _be ;};
// MakeKey implements Filter interface.
func (_cge filterV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _ebc (objNum ,genNum ,ekey ,false );};
// KeyLength implements Filter interface.
func (_ccf filterV2 )KeyLength ()int {return _ccf ._da };func init (){_abd ("\u0056\u0032",_gce )};
// NewIdentity creates an identity filter that bypasses all data without changes.
func NewIdentity ()Filter {return filterIdentity {}};var _ Filter =filterV2 {};func _gce (_bcf FilterDict )(Filter ,error ){if _bcf .Length %8!=0{return nil ,_ba .Errorf ("\u0063\u0072\u0079p\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069\u0070\u006c\u0065\u0020o\u0066\u0020\u0038\u0020\u0028\u0025\u0064\u0029",_bcf .Length );};if _bcf .Length < 5||_bcf .Length > 16{if _bcf .Length ==40||_bcf .Length ==64||_bcf .Length ==128{_ed .Log .Debug ("\u0053\u0054\u0041\u004e\u0044AR\u0044\u0020V\u0049\u004f\u004c\u0041\u0054\u0049\u004f\u004e\u003a\u0020\u0043\u0072\u0079\u0070\u0074\u0020\u004c\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072s\u0020\u0074\u006f \u0062\u0065\u0020\u0069\u006e\u0020\u0062\u0069\u0074\u0073\u0020\u0072\u0061t\u0068\u0065\u0072\u0020\u0074h\u0061\u006e\u0020\u0062\u0079\u0074\u0065\u0073\u0020-\u0020\u0061s\u0073u\u006d\u0069\u006e\u0067\u0020\u0062\u0069t\u0073\u0020\u0028\u0025\u0064\u0029",_bcf .Length );_bcf .Length /=8;}else {return nil ,_ba .Errorf ("\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074h\u0020\u006e\u006f\u0074\u0020\u0069\u006e \u0072\u0061\u006e\u0067\u0065\u0020\u0034\u0030\u0020\u002d\u00201\u0032\u0038\u0020\u0062\u0069\u0074\u0020\u0028\u0025\u0064\u0029",_bcf .Length );};};return filterV2 {_da :_bcf .Length },nil ;};func (filterIdentity )DecryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };
// Name implements Filter interface.
func (filterAESV2 )Name ()string {return "\u0041\u0045\u0053V\u0032"};
// Name implements Filter interface.
func (filterAESV3 )Name ()string {return "\u0041\u0045\u0053V\u0033"};func _abd (_dbd string ,_aac filterFunc ){if _ ,_age :=_acb [_dbd ];_age {panic ("\u0061l\u0072e\u0061\u0064\u0079\u0020\u0072e\u0067\u0069s\u0074\u0065\u0072\u0065\u0064");};_acb [_dbd ]=_aac ;};type filterAESV2 struct{filterAES };func (filterIdentity )KeyLength ()int {return 0};
// HandlerVersion implements Filter interface.
func (filterAESV2 )HandlerVersion ()(V ,R int ){V ,R =4,4;return ;};
// PDFVersion implements Filter interface.
func (_bce filterV2 )PDFVersion ()[2]int {return [2]int {}};func (filterIdentity )Name ()string {return "\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079"};
// HandlerVersion implements Filter interface.
func (_bae filterV2 )HandlerVersion ()(V ,R int ){V ,R =2,3;return ;};
// NewFilter creates CryptFilter from a corresponding dictionary.
func NewFilter (d FilterDict )(Filter ,error ){_fg ,_eac :=_aadf (d .CFM );if _eac !=nil {return nil ,_eac ;};_cb ,_eac :=_fg (d );if _eac !=nil {return nil ,_eac ;};return _cb ,nil ;};
// FilterDict represents information from a CryptFilter dictionary.
type FilterDict struct{CFM string ;AuthEvent _ac .AuthEvent ;Length int ;};func (filterIdentity )PDFVersion ()[2]int {return [2]int {}};type filterIdentity struct{};var _ Filter =filterAESV3 {};
type FilterDict struct{CFM string ;AuthEvent _ba .AuthEvent ;Length int ;};
// NewFilterAESV2 creates an AES-based filter with a 128 bit key (AESV2).
func NewFilterAESV2 ()Filter {_ad ,_ef :=_gc (FilterDict {});if _ef !=nil {_ed .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_ef );return filterAESV2 {};};return _ad ;};func _ebc (_cf ,_dc uint32 ,_gga []byte ,_db bool )([]byte ,error ){_aad :=make ([]byte ,len (_gga )+5);for _gbd :=0;_gbd < len (_gga );_gbd ++{_aad [_gbd ]=_gga [_gbd ];};for _cd :=0;_cd < 3;_cd ++{_ggf :=byte ((_cf >>uint32 (8*_cd ))&0xff);_aad [_cd +len (_gga )]=_ggf ;};for _ebb :=0;_ebb < 2;_ebb ++{_gd :=byte ((_dc >>uint32 (8*_ebb ))&0xff);_aad [_ebb +len (_gga )+3]=_gd ;};if _db {_aad =append (_aad ,0x73);_aad =append (_aad ,0x41);_aad =append (_aad ,0x6C);_aad =append (_aad ,0x54);};_bba :=_c .New ();_bba .Write (_aad );_gfc :=_bba .Sum (nil );if len (_gga )+5< 16{return _gfc [0:len (_gga )+5],nil ;};return _gfc ,nil ;};
// Name implements Filter interface.
func (filterAESV2 )Name ()string {return "\u0041\u0045\u0053V\u0032"};type filterIdentity struct{};
// HandlerVersion implements Filter interface.
func (_dc filterV2 )HandlerVersion ()(V ,R int ){V ,R =2,3;return ;};func init (){_bea ("\u0056\u0032",_bdd )};
// KeyLength implements Filter interface.
func (_dg filterV2 )KeyLength ()int {return _dg ._geg };
// Filter is a common interface for crypt filter methods.
type Filter interface{
@ -94,15 +74,62 @@ HandlerVersion ()(V ,R int );
// MakeKey generates a object encryption key based on file encryption key and object numbers.
// Used only for legacy filters - AESV3 doesn't change the key for each object.
MakeKey (_gcb ,_bfb uint32 ,_gcbb []byte )([]byte ,error );
MakeKey (_gagb ,_cbc uint32 ,_gdc []byte )([]byte ,error );
// EncryptBytes encrypts a buffer using object encryption key, as returned by MakeKey.
// Implementation may reuse a buffer and encrypt data in-place.
EncryptBytes (_de []byte ,_bacd []byte )([]byte ,error );
EncryptBytes (_bb []byte ,_aaa []byte )([]byte ,error );
// DecryptBytes decrypts a buffer using object encryption key, as returned by MakeKey.
// Implementation may reuse a buffer and decrypt data in-place.
DecryptBytes (_dae []byte ,_bbe []byte )([]byte ,error );};var _ Filter =filterAESV2 {};
DecryptBytes (_bfc []byte ,_cd []byte )([]byte ,error );};func (filterIdentity )HandlerVersion ()(V ,R int ){return ;};var _ Filter =filterAESV3 {};
// MakeKey implements Filter interface.
func (_aad filterV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _aaf (objNum ,genNum ,ekey ,false );};
// PDFVersion implements Filter interface.
func (_aaff filterV2 )PDFVersion ()[2]int {return [2]int {}};func (filterIdentity )KeyLength ()int {return 0};func (filterAES )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_fb ,_cg :=_b .NewCipher (okey );if _cg !=nil {return nil ,_cg ;};if len (buf )< 16{_aa .Log .Debug ("\u0045R\u0052\u004f\u0052\u0020\u0041\u0045\u0053\u0020\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0062\u0075\u0066\u0020\u0025\u0073",buf );
return buf ,_g .Errorf ("\u0041\u0045\u0053\u003a B\u0075\u0066\u0020\u006c\u0065\u006e\u0020\u003c\u0020\u0031\u0036\u0020\u0028\u0025d\u0029",len (buf ));};_beg :=buf [:16];buf =buf [16:];if len (buf )%16!=0{_aa .Log .Debug ("\u0020\u0069\u0076\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (_beg ),_beg );
_aa .Log .Debug ("\u0062\u0075\u0066\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,_g .Errorf ("\u0041\u0045\u0053\u0020\u0062\u0075\u0066\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069p\u006c\u0065\u0020\u006f\u0066 \u0031\u0036 \u0028\u0025\u0064\u0029",len (buf ));
};_fee :=_fe .NewCBCDecrypter (_fb ,_beg );_aa .Log .Trace ("A\u0045\u0053\u0020\u0044ec\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );_aa .Log .Trace ("\u0063\u0068\u006f\u0070\u0020\u0041\u0045\u0053\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u0020\u0028\u0025\u0064\u0029\u003a \u0025\u0020\u0078",len (buf ),buf );
_fee .CryptBlocks (buf ,buf );_aa .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );if len (buf )==0{_aa .Log .Trace ("\u0045\u006d\u0070\u0074\u0079\u0020b\u0075\u0066\u002c\u0020\u0072\u0065\u0074\u0075\u0072\u006e\u0069\u006e\u0067 \u0065\u006d\u0070\u0074\u0079\u0020\u0073t\u0072\u0069\u006e\u0067");
return buf ,nil ;};_ef :=int (buf [len (buf )-1]);if _ef > len (buf ){_aa .Log .Debug ("\u0049\u006c\u006c\u0065g\u0061\u006c\u0020\u0070\u0061\u0064\u0020\u006c\u0065\u006eg\u0074h\u0020\u0028\u0025\u0064\u0020\u003e\u0020%\u0064\u0029",_ef ,len (buf ));
return buf ,_g .Errorf ("\u0069n\u0076a\u006c\u0069\u0064\u0020\u0070a\u0064\u0020l\u0065\u006e\u0067\u0074\u0068");};buf =buf [:len (buf )-_ef ];return buf ,nil ;};
// HandlerVersion implements Filter interface.
func (filterAESV2 )HandlerVersion ()(V ,R int ){V ,R =4,4;return ;};func (filterIdentity )EncryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };func _bdd (_eb FilterDict )(Filter ,error ){if _eb .Length %8!=0{return nil ,_g .Errorf ("\u0063\u0072\u0079p\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069\u0070\u006c\u0065\u0020o\u0066\u0020\u0038\u0020\u0028\u0025\u0064\u0029",_eb .Length );
};if _eb .Length < 5||_eb .Length > 16{if _eb .Length ==40||_eb .Length ==64||_eb .Length ==128{_aa .Log .Debug ("\u0053\u0054\u0041\u004e\u0044AR\u0044\u0020V\u0049\u004f\u004c\u0041\u0054\u0049\u004f\u004e\u003a\u0020\u0043\u0072\u0079\u0070\u0074\u0020\u004c\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072s\u0020\u0074\u006f \u0062\u0065\u0020\u0069\u006e\u0020\u0062\u0069\u0074\u0073\u0020\u0072\u0061t\u0068\u0065\u0072\u0020\u0074h\u0061\u006e\u0020\u0062\u0079\u0074\u0065\u0073\u0020-\u0020\u0061s\u0073u\u006d\u0069\u006e\u0067\u0020\u0062\u0069t\u0073\u0020\u0028\u0025\u0064\u0029",_eb .Length );
_eb .Length /=8;}else {return nil ,_g .Errorf ("\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074h\u0020\u006e\u006f\u0074\u0020\u0069\u006e \u0072\u0061\u006e\u0067\u0065\u0020\u0034\u0030\u0020\u002d\u00201\u0032\u0038\u0020\u0062\u0069\u0074\u0020\u0028\u0025\u0064\u0029",_eb .Length );
};};return filterV2 {_geg :_eb .Length },nil ;};
// NewFilter creates CryptFilter from a corresponding dictionary.
func NewFilter (d FilterDict )(Filter ,error ){_bcce ,_ff :=_fed (d .CFM );if _ff !=nil {return nil ,_ff ;};_fce ,_ff :=_bcce (d );if _ff !=nil {return nil ,_ff ;};return _fce ,nil ;};func (filterIdentity )Name ()string {return "\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079"};
type filterAESV2 struct{filterAES };
// NewFilterV2 creates a RC4-based filter with a specified key length (in bytes).
func NewFilterV2 (length int )Filter {_gg ,_cgc :=_bdd (FilterDict {Length :length });if _cgc !=nil {_aa .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020R\u0043\u0034\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_cgc );
return filterV2 {_geg :length };};return _gg ;};func (filterAES )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ee ,_gd :=_b .NewCipher (okey );if _gd !=nil {return nil ,_gd ;};_aa .Log .Trace ("A\u0045\u0053\u0020\u0045nc\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );
const _agc =_b .BlockSize ;_gdb :=_agc -len (buf )%_agc ;for _ga :=0;_ga < _gdb ;_ga ++{buf =append (buf ,byte (_gdb ));};_aa .Log .Trace ("\u0050a\u0064d\u0065\u0064\u0020\u0074\u006f \u0025\u0064 \u0062\u0079\u0074\u0065\u0073",len (buf ));_eef :=make ([]byte ,_agc +len (buf ));
_fg :=_eef [:_agc ];if _ ,_gag :=_fc .ReadFull (_a .Reader ,_fg );_gag !=nil {return nil ,_gag ;};_bc :=_fe .NewCBCEncrypter (_ee ,_fg );_bc .CryptBlocks (_eef [_agc :],buf );buf =_eef ;_aa .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );
return buf ,nil ;};
// HandlerVersion implements Filter interface.
func (filterAESV3 )HandlerVersion ()(V ,R int ){V ,R =5,6;return ;};
// KeyLength implements Filter interface.
func (filterAESV2 )KeyLength ()int {return 128/8};func (filterIdentity )HandlerVersion ()(V ,R int ){return ;};func (filterAES )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_aa ,_cc :=_a .NewCipher (okey );if _cc !=nil {return nil ,_cc ;};_ed .Log .Trace ("A\u0045\u0053\u0020\u0045nc\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );const _bf =_a .BlockSize ;_f :=_bf -len (buf )%_bf ;for _ca :=0;_ca < _f ;_ca ++{buf =append (buf ,byte (_f ));};_ed .Log .Trace ("\u0050a\u0064d\u0065\u0064\u0020\u0074\u006f \u0025\u0064 \u0062\u0079\u0074\u0065\u0073",len (buf ));_af :=make ([]byte ,_bf +len (buf ));_bb :=_af [:_bf ];if _ ,_fe :=_e .ReadFull (_ea .Reader ,_bb );_fe !=nil {return nil ,_fe ;};_gf :=_g .NewCBCEncrypter (_aa ,_bb );_gf .CryptBlocks (_af [_bf :],buf );buf =_af ;_ed .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,nil ;};type filterV2 struct{_da int };type filterFunc func (_ffe FilterDict )(Filter ,error );func (filterIdentity )MakeKey (objNum ,genNum uint32 ,fkey []byte )([]byte ,error ){return fkey ,nil };
func (filterAESV3 )KeyLength ()int {return 256/8};var _ Filter =filterV2 {};type filterFunc func (_ggd FilterDict )(Filter ,error );
// DecryptBytes implements Filter interface.
func (filterV2 )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ea ,_cc :=_c .NewCipher (okey );if _cc !=nil {return nil ,_cc ;};_aa .Log .Trace ("\u0052\u00434\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_ea .XORKeyStream (buf ,buf );
_aa .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};var (_fcf =make (map[string ]filterFunc ););func _aaf (_ad ,_bcc uint32 ,_adc []byte ,_bae bool )([]byte ,error ){_fd :=make ([]byte ,len (_adc )+5);for _bfb :=0;_bfb < len (_adc );
_bfb ++{_fd [_bfb ]=_adc [_bfb ];};for _fca :=0;_fca < 3;_fca ++{_eg :=byte ((_ad >>uint32 (8*_fca ))&0xff);_fd [_fca +len (_adc )]=_eg ;};for _cb :=0;_cb < 2;_cb ++{_aafg :=byte ((_bcc >>uint32 (8*_cb ))&0xff);_fd [_cb +len (_adc )+3]=_aafg ;};if _bae {_fd =append (_fd ,0x73);
_fd =append (_fd ,0x41);_fd =append (_fd ,0x6C);_fd =append (_fd ,0x54);};_efb :=_be .New ();_efb .Write (_fd );_cgcc :=_efb .Sum (nil );if len (_adc )+5< 16{return _cgcc [0:len (_adc )+5],nil ;};return _cgcc ,nil ;};
// KeyLength implements Filter interface.
func (filterAESV2 )KeyLength ()int {return 128/8};type filterV2 struct{_geg int };func _af (_aab FilterDict )(Filter ,error ){if _aab .Length ==128{_aa .Log .Debug ("\u0041\u0045S\u0056\u0032\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_aab .Length );
_aab .Length /=8;};if _aab .Length !=0&&_aab .Length !=16{return nil ,_g .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0032\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_aab .Length );
};return filterAESV2 {},nil ;};
// NewFilterAESV2 creates an AES-based filter with a 128 bit key (AESV2).
func NewFilterAESV2 ()Filter {_ge ,_ac :=_af (FilterDict {});if _ac !=nil {_aa .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_ac );
return filterAESV2 {};};return _ge ;};type filterAES struct{};

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fjson/fjson.go
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@ -10,28 +10,32 @@
// terms that can be accessed at https://unidoc.io/eula/
// Package fjson provides support for loading PDF form field data from JSON data/files.
package fjson ;import (_e "encoding/json";_a "github.com/unidoc/unipdf/v3/core";_ab "github.com/unidoc/unipdf/v3/model";_g "io";_d "os";);
// JSON returns the field data as a string in JSON format.
func (_fd FieldData )JSON ()(string ,error ){_aaf ,_bdea :=_e .MarshalIndent (_fd ._ae ,"","\u0020\u0020\u0020\u0020");return string (_aaf ),_bdea ;};
// FieldData represents form field data loaded from JSON file.
type FieldData struct{_ae []fieldValue };
// LoadFromJSONFile loads form field data from a JSON file.
func LoadFromJSONFile (filePath string )(*FieldData ,error ){_c ,_gd :=_d .Open (filePath );if _gd !=nil {return nil ,_gd ;};defer _c .Close ();return LoadFromJSON (_c );};
package fjson ;import (_g "encoding/json";_ga "github.com/unidoc/unipdf/v3/core";_ba "github.com/unidoc/unipdf/v3/model";_c "io";_e "os";);
// LoadFromJSON loads JSON form data from `r`.
func LoadFromJSON (r _g .Reader )(*FieldData ,error ){var _bg FieldData ;_ee :=_e .NewDecoder (r ).Decode (&_bg ._ae );if _ee !=nil {return nil ,_ee ;};return &_bg ,nil ;};
// LoadFromPDFFile loads form field data from a PDF file.
func LoadFromPDFFile (filePath string )(*FieldData ,error ){_cb ,_cd :=_d .Open (filePath );if _cd !=nil {return nil ,_cd ;};defer _cb .Close ();return LoadFromPDF (_cb );};
func LoadFromJSON (r _c .Reader )(*FieldData ,error ){var _cd FieldData ;_ee :=_g .NewDecoder (r ).Decode (&_cd ._a );if _ee !=nil {return nil ,_ee ;};return &_cd ,nil ;};
// LoadFromPDF loads form field data from a PDF.
func LoadFromPDF (rs _g .ReadSeeker )(*FieldData ,error ){_df ,_bb :=_ab .NewPdfReader (rs );if _bb !=nil {return nil ,_bb ;};if _df .AcroForm ==nil {return nil ,nil ;};var _ca []fieldValue ;_cc :=_df .AcroForm .AllFields ();for _ ,_cab :=range _cc {var _f []string ;_ac :=make (map[string ]struct{});_bac ,_bf :=_cab .FullName ();if _bf !=nil {return nil ,_bf ;};if _de ,_gde :=_cab .V .(*_a .PdfObjectString );_gde {_ca =append (_ca ,fieldValue {Name :_bac ,Value :_de .Decoded ()});continue ;};var _gf string ;for _ ,_gc :=range _cab .Annotations {_ef ,_fe :=_a .GetName (_gc .AS );if _fe {_gf =_ef .String ();};_cg ,_ad :=_a .GetDict (_gc .AP );if !_ad {continue ;};_da ,_ :=_a .GetDict (_cg .Get ("\u004e"));for _ ,_dg :=range _da .Keys (){_adb :=_dg .String ();if _ ,_aa :=_ac [_adb ];!_aa {_f =append (_f ,_adb );_ac [_adb ]=struct{}{};};};_af ,_ :=_a .GetDict (_cg .Get ("\u0044"));for _ ,_dc :=range _af .Keys (){_ge :=_dc .String ();if _ ,_bde :=_ac [_ge ];!_bde {_f =append (_f ,_ge );_ac [_ge ]=struct{}{};};};};_dff :=fieldValue {Name :_bac ,Value :_gf ,Options :_f };_ca =append (_ca ,_dff );};_eee :=FieldData {_ae :_ca };return &_eee ,nil ;};
func LoadFromPDF (rs _c .ReadSeeker )(*FieldData ,error ){_f ,_ae :=_ba .NewPdfReader (rs );if _ae !=nil {return nil ,_ae ;};if _f .AcroForm ==nil {return nil ,nil ;};var _d []fieldValue ;_gcd :=_f .AcroForm .AllFields ();for _ ,_be :=range _gcd {var _cg []string ;
_fe :=make (map[string ]struct{});_ad ,_ag :=_be .FullName ();if _ag !=nil {return nil ,_ag ;};if _bc ,_ef :=_be .V .(*_ga .PdfObjectString );_ef {_d =append (_d ,fieldValue {Name :_ad ,Value :_bc .Decoded ()});continue ;};var _eb string ;for _ ,_abb :=range _be .Annotations {_bed ,_gb :=_ga .GetName (_abb .AS );
if _gb {_eb =_bed .String ();};_gcda ,_ca :=_ga .GetDict (_abb .AP );if !_ca {continue ;};_ac ,_ :=_ga .GetDict (_gcda .Get ("\u004e"));for _ ,_cbd :=range _ac .Keys (){_ebf :=_cbd .String ();if _ ,_dc :=_fe [_ebf ];!_dc {_cg =append (_cg ,_ebf );_fe [_ebf ]=struct{}{};
};};_ce ,_ :=_ga .GetDict (_gcda .Get ("\u0044"));for _ ,_fa :=range _ce .Keys (){_gbf :=_fa .String ();if _ ,_cc :=_fe [_gbf ];!_cc {_cg =append (_cg ,_gbf );_fe [_gbf ]=struct{}{};};};};_ec :=fieldValue {Name :_ad ,Value :_eb ,Options :_cg };_d =append (_d ,_ec );
};_ge :=FieldData {_a :_d };return &_ge ,nil ;};
// LoadFromJSONFile loads form field data from a JSON file.
func LoadFromJSONFile (filePath string )(*FieldData ,error ){_ab ,_gc :=_e .Open (filePath );if _gc !=nil {return nil ,_gc ;};defer _ab .Close ();return LoadFromJSON (_ab );};
// FieldValues implements model.FieldValueProvider interface.
func (_dgc *FieldData )FieldValues ()(map[string ]_a .PdfObject ,error ){_gb :=make (map[string ]_a .PdfObject );for _ ,_fb :=range _dgc ._ae {if len (_fb .Value )> 0{_gb [_fb .Name ]=_a .MakeString (_fb .Value );};};return _gb ,nil ;};type fieldValue struct{Name string `json:"name"`;Value string `json:"value"`;
func (_cad *FieldData )FieldValues ()(map[string ]_ga .PdfObject ,error ){_ecc :=make (map[string ]_ga .PdfObject );for _ ,_gce :=range _cad ._a {if len (_gce .Value )> 0{_ecc [_gce .Name ]=_ga .MakeString (_gce .Value );};};return _ecc ,nil ;};
// LoadFromPDFFile loads form field data from a PDF file.
func LoadFromPDFFile (filePath string )(*FieldData ,error ){_ebd ,_da :=_e .Open (filePath );if _da !=nil {return nil ,_da ;};defer _ebd .Close ();return LoadFromPDF (_ebd );};
// JSON returns the field data as a string in JSON format.
func (_cdf FieldData )JSON ()(string ,error ){_feg ,_bgd :=_g .MarshalIndent (_cdf ._a ,"","\u0020\u0020\u0020\u0020");return string (_feg ),_bgd ;};type fieldValue struct{Name string `json:"name"`;Value string `json:"value"`;
// Options lists allowed values if present.
Options []string `json:"options,omitempty"`;};
Options []string `json:"options,omitempty"`;};
// FieldData represents form field data loaded from JSON file.
type FieldData struct{_a []fieldValue };

20
go.sum
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@ -1,20 +1,32 @@
github.com/adrg/strutil v0.1.0 h1:IOQnSOAjbE17+7l1lw4rXgX6JuSeJGdZa7BucTMV3Qg=
github.com/adrg/strutil v0.1.0/go.mod h1:pXRr2+IyX5AEPAF5icj/EeTaiflPSD2hvGjnguilZgE=
github.com/adrg/sysfont v0.1.0 h1:vOk13USVkciGOJj9sPT9Gl9zfHUT2HZgsBnwS1Je4Q8=
github.com/adrg/sysfont v0.1.0/go.mod h1:DzISco90USPZJ+lmtpuz1SOTn1fih6YyB0KG2TEP/0U=
github.com/adrg/sysfont v0.1.1 h1:l9WKJNHsIpsfOhYIm1oSj+77837r/vls1MH17SH6gp0=
github.com/adrg/sysfont v0.1.1/go.mod h1:19nTHzfIn/HbngFMet+yNAvwSQYtOJYMI7vWexLWyNw=
github.com/adrg/xdg v0.2.1 h1:VSVdnH7cQ7V+B33qSJHTCRlNgra1607Q8PzEmnvb2Ic=
github.com/adrg/xdg v0.2.1/go.mod h1:ZuOshBmzV4Ta+s23hdfFZnBsdzmoR3US0d7ErpqSbTQ=
github.com/boombuler/barcode v1.0.0 h1:s1TvRnXwL2xJRaccrdcBQMZxq6X7DvsMogtmJeHDdrc=
github.com/boombuler/barcode v1.0.0/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/konsorten/go-windows-terminal-sequences v1.0.2 h1:DB17ag19krx9CFsz4o3enTrPXyIXCl+2iCXH/aMAp9s=
github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/sirupsen/logrus v1.5.0 h1:1N5EYkVAPEywqZRJd7cwnRtCb6xJx7NH3T3WUTF980Q=
github.com/sirupsen/logrus v1.5.0/go.mod h1:+F7Ogzej0PZc/94MaYx/nvG9jOFMD2osvC3s+Squfpo=
github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
@ -27,8 +39,12 @@ github.com/unidoc/timestamp v0.0.0-20200412005513-91597fd3793a/go.mod h1:j+qMWZV
github.com/unidoc/unitype v0.2.1 h1:x0jMn7pB/tNrjEVjy3Ukpxo++HOBQaTCXcTYFA6BH3w=
github.com/unidoc/unitype v0.2.1/go.mod h1:mafyug7zYmDOusqa7G0dJV45qp4b6TDAN+pHN7ZUIBU=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5 h1:58fnuSXlxZmFdJyvtTFVmVhcMLU6v5fEb/ok4wyqtNU=
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0 h1:hb9wdF1z5waM+dSIICn1l0DkLVDT3hqhhQsDNUmHPRE=
golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/image v0.0.0-20181116024801-cd38e8056d9b h1:VHyIDlv3XkfCa5/a81uzaoDkHH4rr81Z62g+xlnO8uM=
golang.org/x/image v0.0.0-20181116024801-cd38e8056d9b/go.mod h1:ux5Hcp/YLpHSI86hEcLt0YII63i6oz57MZXIpbrjZUs=
golang.org/x/image v0.0.0-20200927104501-e162460cd6b5 h1:QelT11PB4FXiDEXucrfNckHoFxwt8USGY1ajP1ZF5lM=
golang.org/x/image v0.0.0-20200927104501-e162460cd6b5/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
@ -37,14 +53,18 @@ golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200413165638-669c56c373c4 h1:opSr2sbRXk5X5/givKrrKj9HXxFpW2sdCiP8MJSKLQY=
golang.org/x/sys v0.0.0-20200413165638-669c56c373c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=

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internal/ccittfax/ccittfax.go
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internal/cmap/bcmaps/bcmaps.go
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internal/cmap/cmap.go
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3
internal/endian/endian.go
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@ -9,4 +9,5 @@
// 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 endian ;import (_ab "encoding/binary";_abd "unsafe";);func IsBig ()bool {return _f };func init (){const _e =int (_abd .Sizeof (0));_c :=1;_b :=(*[_e ]byte )(_abd .Pointer (&_c ));if _b [0]==0{_f =true ;ByteOrder =_ab .BigEndian ;}else {ByteOrder =_ab .LittleEndian ;};};func IsLittle ()bool {return !_f };var (ByteOrder _ab .ByteOrder ;_f bool ;);
package endian ;import (_c "encoding/binary";_b "unsafe";);var (ByteOrder _c .ByteOrder ;_f bool ;);func init (){const _ad =int (_b .Sizeof (0));_af :=1;_d :=(*[_ad ]byte )(_b .Pointer (&_af ));if _d [0]==0{_f =true ;ByteOrder =_c .BigEndian ;}else {ByteOrder =_c .LittleEndian ;
};};func IsLittle ()bool {return !_f };func IsBig ()bool {return _f };

372
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13
internal/jbig2/basic/basic.go
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@ -9,4 +9,15 @@
// 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 basic ;import _a "github.com/unidoc/unipdf/v3/internal/jbig2/errors";type IntsMap map[uint64 ][]int ;func (_bd NumSlice )Get (i int )(float32 ,error ){if i < 0||i > len (_bd )-1{return 0,_a .Errorf ("\u004e\u0075\u006dS\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );};return _bd [i ],nil ;};func (_ac IntSlice )Get (index int )(int ,error ){if index > len (_ac )-1{return 0,_a .Errorf ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069\u006e\u0064\u0065x:\u0020\u0025\u0064\u0020\u006f\u0075\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006eg\u0065",index );};return _ac [index ],nil ;};type Stack struct{Data []interface{};Aux *Stack ;};func Ceil (numerator ,denominator int )int {if numerator %denominator ==0{return numerator /denominator ;};return (numerator /denominator )+1;};func (_dgc *Stack )top ()int {return len (_dgc .Data )-1};func (_bdf *Stack )Push (v interface{}){_bdf .Data =append (_bdf .Data ,v )};func (_aa IntsMap )GetSlice (key uint64 )([]int ,bool ){_e ,_eg :=_aa [key ];if !_eg {return nil ,false ;};return _e ,true ;};func (_gc *IntSlice )Add (v int )error {if _gc ==nil {return _a .Error ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0041\u0064\u0064","\u0073\u006c\u0069\u0063\u0065\u0020\u006e\u006f\u0074\u0020\u0064\u0065f\u0069\u006e\u0065\u0064");};*_gc =append (*_gc ,v );return nil ;};func Sign (v float32 )float32 {if v >=0.0{return 1.0;};return -1.0;};func Min (x ,y int )int {if x < y {return x ;};return y ;};func (_dg IntSlice )Size ()int {return len (_dg )};type IntSlice []int ;func (_ag IntsMap )Get (key uint64 )(int ,bool ){_d ,_bc :=_ag [key ];if !_bc {return 0,false ;};if len (_d )==0{return 0,false ;};return _d [0],true ;};func (_b IntsMap )Add (key uint64 ,value int ){_b [key ]=append (_b [key ],value )};func Abs (v int )int {if v > 0{return v ;};return -v ;};func (_f *NumSlice )AddInt (v int ){*_f =append (*_f ,float32 (v ))};func (_fg *Stack )Pop ()(_ba interface{},_agb bool ){_ba ,_agb =_fg .peek ();if !_agb {return nil ,_agb ;};_fg .Data =_fg .Data [:_fg .top ()];return _ba ,true ;};func (_c NumSlice )GetInt (i int )(int ,error ){const _egf ="\u0047\u0065\u0074\u0049\u006e\u0074";if i < 0||i > len (_c )-1{return 0,_a .Errorf (_egf ,"\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );};_cb :=_c [i ];return int (_cb +Sign (_cb )*0.5),nil ;};func (_af *Stack )peek ()(interface{},bool ){_cg :=_af .top ();if _cg ==-1{return nil ,false ;};return _af .Data [_cg ],true ;};func (_ad *IntSlice )Copy ()*IntSlice {_ec :=IntSlice (make ([]int ,len (*_ad )));copy (_ec ,*_ad );return &_ec ;};func NewNumSlice (i int )*NumSlice {_gfe :=NumSlice (make ([]float32 ,i ));return &_gfe };func Max (x ,y int )int {if x > y {return x ;};return y ;};func NewIntSlice (i int )*IntSlice {_gf :=IntSlice (make ([]int ,i ));return &_gf };func (_fc *Stack )Len ()int {return len (_fc .Data )};func (_ecb NumSlice )GetIntSlice ()[]int {_eb :=make ([]int ,len (_ecb ));for _ef ,_ca :=range _ecb {_eb [_ef ]=int (_ca );};return _eb ;};type NumSlice []float32 ;func (_bb IntsMap )Delete (key uint64 ){delete (_bb ,key )};func (_bg *Stack )Peek ()(_bf interface{},_agd bool ){return _bg .peek ()};func (_ece *NumSlice )Add (v float32 ){*_ece =append (*_ece ,v )};
package basic ;import _a "github.com/unidoc/unipdf/v3/internal/jbig2/errors";func Ceil (numerator ,denominator int )int {if numerator %denominator ==0{return numerator /denominator ;};return (numerator /denominator )+1;};type IntsMap map[uint64 ][]int ;
func Abs (v int )int {if v > 0{return v ;};return -v ;};func (_bb NumSlice )Get (i int )(float32 ,error ){if i < 0||i > len (_bb )-1{return 0,_a .Errorf ("\u004e\u0075\u006dS\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );
};return _bb [i ],nil ;};func (_ba *IntSlice )Add (v int )error {if _ba ==nil {return _a .Error ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0041\u0064\u0064","\u0073\u006c\u0069\u0063\u0065\u0020\u006e\u006f\u0074\u0020\u0064\u0065f\u0069\u006e\u0065\u0064");
};*_ba =append (*_ba ,v );return nil ;};func (_bf IntsMap )GetSlice (key uint64 )([]int ,bool ){_bc ,_gc :=_bf [key ];if !_gc {return nil ,false ;};return _bc ,true ;};func (_cca *Stack )Pop ()(_baa interface{},_bae bool ){_baa ,_bae =_cca .peek ();if !_bae {return nil ,_bae ;
};_cca .Data =_cca .Data [:_cca .top ()];return _baa ,true ;};func (_bac *IntSlice )Copy ()*IntSlice {_cc :=IntSlice (make ([]int ,len (*_bac )));copy (_cc ,*_bac );return &_cc ;};func (_b IntsMap )Get (key uint64 )(int ,bool ){_ge ,_ac :=_b [key ];if !_ac {return 0,false ;
};if len (_ge )==0{return 0,false ;};return _ge [0],true ;};func (_f *Stack )Len ()int {return len (_f .Data )};func (_c IntsMap )Add (key uint64 ,value int ){_c [key ]=append (_c [key ],value )};func NewIntSlice (i int )*IntSlice {_bg :=IntSlice (make ([]int ,i ));
return &_bg };func (_cb *NumSlice )AddInt (v int ){*_cb =append (*_cb ,float32 (v ))};func Sign (v float32 )float32 {if v >=0.0{return 1.0;};return -1.0;};func (_ab *Stack )peek ()(interface{},bool ){_gbe :=_ab .top ();if _gbe ==-1{return nil ,false ;};
return _ab .Data [_gbe ],true ;};func (_aec NumSlice )GetIntSlice ()[]int {_acd :=make ([]int ,len (_aec ));for _dc ,_cbc :=range _aec {_acd [_dc ]=int (_cbc );};return _acd ;};func Max (x ,y int )int {if x > y {return x ;};return y ;};type Stack struct{Data []interface{};
Aux *Stack ;};func (_bba *Stack )Peek ()(_bce interface{},_gd bool ){return _bba .peek ()};func (_gb IntsMap )Delete (key uint64 ){delete (_gb ,key )};func (_dg NumSlice )GetInt (i int )(int ,error ){const _acb ="\u0047\u0065\u0074\u0049\u006e\u0074";if i < 0||i > len (_dg )-1{return 0,_a .Errorf (_acb ,"\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );
};_dd :=_dg [i ];return int (_dd +Sign (_dd )*0.5),nil ;};func (_cce *NumSlice )Add (v float32 ){*_cce =append (*_cce ,v )};type NumSlice []float32 ;func NewNumSlice (i int )*NumSlice {_ccg :=NumSlice (make ([]float32 ,i ));return &_ccg };func Min (x ,y int )int {if x < y {return x ;
};return y ;};func (_bca *Stack )top ()int {return len (_bca .Data )-1};type IntSlice []int ;func (_ae IntSlice )Size ()int {return len (_ae )};func (_d IntSlice )Get (index int )(int ,error ){if index > len (_d )-1{return 0,_a .Errorf ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069\u006e\u0064\u0065x:\u0020\u0025\u0064\u0020\u006f\u0075\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006eg\u0065",index );
};return _d [index ],nil ;};func (_ad *Stack )Push (v interface{}){_ad .Data =append (_ad .Data ,v )};

645
internal/jbig2/bitmap/bitmap.go
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internal/jbig2/decoder/arithmetic/arithmetic.go
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internal/jbig2/decoder/decoder.go
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@ -9,4 +9,14 @@
// 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 decoder ;import (_ba "github.com/unidoc/unipdf/v3/internal/bitwise";_c "github.com/unidoc/unipdf/v3/internal/jbig2/bitmap";_bg "github.com/unidoc/unipdf/v3/internal/jbig2/document";_a "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_e "image";);func (_d *Decoder )DecodePage (pageNumber int )([]byte ,error ){return _d .decodePage (pageNumber )};type Decoder struct{_ef _ba .StreamReader ;_ea *_bg .Document ;_ed int ;_g Parameters ;};func (_bge *Decoder )DecodeNextPage ()([]byte ,error ){_bge ._ed ++;_eb :=_bge ._ed ;return _bge .decodePage (_eb );};func (_ac *Decoder )PageNumber ()(int ,error ){const _bc ="\u0044e\u0063o\u0064\u0065\u0072\u002e\u0050a\u0067\u0065N\u0075\u006d\u0062\u0065\u0072";if _ac ._ea ==nil {return 0,_a .Error (_bc ,"d\u0065\u0063\u006f\u0064\u0065\u0072 \u006e\u006f\u0074\u0020\u0069\u006e\u0069\u0074\u0069a\u006c\u0069\u007ae\u0064 \u0079\u0065\u0074");};return int (_ac ._ea .NumberOfPages ),nil ;};func Decode (input []byte ,parameters Parameters ,globals *_bg .Globals )(*Decoder ,error ){_ad :=_ba .NewReader (input );_bf ,_edc :=_bg .DecodeDocument (_ad ,globals );if _edc !=nil {return nil ,_edc ;};return &Decoder {_ef :_ad ,_ea :_bf ,_g :parameters },nil ;};type Parameters struct{UnpaddedData bool ;Color _c .Color ;};func (_dg *Decoder )DecodePageImage (pageNumber int )(_e .Image ,error ){const _df ="\u0064\u0065\u0063od\u0065\u0072\u002e\u0044\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";_bag ,_f :=_dg .decodePageImage (pageNumber );if _f !=nil {return nil ,_a .Wrap (_f ,_df ,"");};return _bag ,nil ;};func (_dc *Decoder )decodePage (_fg int )([]byte ,error ){const _dcd ="\u0064\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065";if _fg < 0{return nil ,_a .Errorf (_dcd ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_fg );};if _fg > int (_dc ._ea .NumberOfPages ){return nil ,_a .Errorf (_dcd ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_fg );};_be ,_fb :=_dc ._ea .GetPage (_fg );if _fb !=nil {return nil ,_a .Wrap (_fb ,_dcd ,"");};_bed ,_fb :=_be .GetBitmap ();if _fb !=nil {return nil ,_a .Wrap (_fb ,_dcd ,"");};_bed .InverseData ();if !_dc ._g .UnpaddedData {return _bed .Data ,nil ;};return _bed .GetUnpaddedData ();};func (_ag *Decoder )decodePageImage (_ee int )(_e .Image ,error ){const _fe ="\u0064e\u0063o\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";if _ee < 0{return nil ,_a .Errorf (_fe ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_ee );};if _ee > int (_ag ._ea .NumberOfPages ){return nil ,_a .Errorf (_fe ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_ee );};_beb ,_ce :=_ag ._ea .GetPage (_ee );if _ce !=nil {return nil ,_a .Wrap (_ce ,_fe ,"");};_dfc ,_ce :=_beb .GetBitmap ();if _ce !=nil {return nil ,_a .Wrap (_ce ,_fe ,"");};_dfc .InverseData ();return _dfc .ToImage (),nil ;};
package decoder ;import (_e "github.com/unidoc/unipdf/v3/internal/bitwise";_a "github.com/unidoc/unipdf/v3/internal/jbig2/bitmap";_d "github.com/unidoc/unipdf/v3/internal/jbig2/document";_gb "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_b "image";
);func (_db *Decoder )decodePage (_eg int )([]byte ,error ){const _fd ="\u0064\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065";if _eg < 0{return nil ,_gb .Errorf (_fd ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_eg );
};if _eg > int (_db ._ag .NumberOfPages ){return nil ,_gb .Errorf (_fd ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_eg );
};_ce ,_ab :=_db ._ag .GetPage (_eg );if _ab !=nil {return nil ,_gb .Wrap (_ab ,_fd ,"");};_ee ,_ab :=_ce .GetBitmap ();if _ab !=nil {return nil ,_gb .Wrap (_ab ,_fd ,"");};_ee .InverseData ();if !_db ._gbf .UnpaddedData {return _ee .Data ,nil ;};return _ee .GetUnpaddedData ();
};func (_bg *Decoder )DecodePage (pageNumber int )([]byte ,error ){return _bg .decodePage (pageNumber )};func (_f *Decoder )DecodePageImage (pageNumber int )(_b .Image ,error ){const _ga ="\u0064\u0065\u0063od\u0065\u0072\u002e\u0044\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";
_c ,_gg :=_f .decodePageImage (pageNumber );if _gg !=nil {return nil ,_gb .Wrap (_gg ,_ga ,"");};return _c ,nil ;};func Decode (input []byte ,parameters Parameters ,globals *_d .Globals )(*Decoder ,error ){_acg :=_e .NewReader (input );_abe ,_bc :=_d .DecodeDocument (_acg ,globals );
if _bc !=nil {return nil ,_bc ;};return &Decoder {_ba :_acg ,_ag :_abe ,_gbf :parameters },nil ;};func (_cb *Decoder )DecodeNextPage ()([]byte ,error ){_cb ._ac ++;_acd :=_cb ._ac ;return _cb .decodePage (_acd );};func (_bb *Decoder )decodePageImage (_bgb int )(_b .Image ,error ){const _cea ="\u0064e\u0063o\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";
if _bgb < 0{return nil ,_gb .Errorf (_cea ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_bgb );};if _bgb > int (_bb ._ag .NumberOfPages ){return nil ,_gb .Errorf (_cea ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_bgb );
};_da ,_ggd :=_bb ._ag .GetPage (_bgb );if _ggd !=nil {return nil ,_gb .Wrap (_ggd ,_cea ,"");};_ea ,_ggd :=_da .GetBitmap ();if _ggd !=nil {return nil ,_gb .Wrap (_ggd ,_cea ,"");};_ea .InverseData ();return _ea .ToImage (),nil ;};type Parameters struct{UnpaddedData bool ;
Color _a .Color ;};type Decoder struct{_ba _e .StreamReader ;_ag *_d .Document ;_ac int ;_gbf Parameters ;};func (_de *Decoder )PageNumber ()(int ,error ){const _cg ="\u0044e\u0063o\u0064\u0065\u0072\u002e\u0050a\u0067\u0065N\u0075\u006d\u0062\u0065\u0072";
if _de ._ag ==nil {return 0,_gb .Error (_cg ,"d\u0065\u0063\u006f\u0064\u0065\u0072 \u006e\u006f\u0074\u0020\u0069\u006e\u0069\u0074\u0069a\u006c\u0069\u007ae\u0064 \u0079\u0065\u0074");};return int (_de ._ag .NumberOfPages ),nil ;};

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internal/jbig2/decoder/mmr/mmr.go
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internal/jbig2/document/document.go
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internal/jbig2/document/segments/segments.go
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internal/jbig2/encoder/arithmetic/arithmetic.go
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internal/jbig2/errors/errors.go
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// 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 errors ;import (_c "fmt";_a "golang.org/x/xerrors";);func Errorf (processName ,message string ,arguments ...interface{})error {return _gae (_c .Sprintf (message ,arguments ...),processName );};func (_b *processError )Unwrap ()error {return _b ._cc };type processError struct{_g string ;_f string ;_ed string ;_cc error ;};func Wrap (err error ,processName ,message string )error {if _ce ,_fa :=err .(*processError );_fa {_ce ._g ="";};_ba :=_gae (message ,processName );_ba ._cc =err ;return _ba ;};func (_ef *processError )Error ()string {var _ga string ;if _ef ._g !=""{_ga =_ef ._g ;};_ga +="\u0050r\u006f\u0063\u0065\u0073\u0073\u003a "+_ef ._f ;if _ef ._ed !=""{_ga +="\u0020\u004d\u0065\u0073\u0073\u0061\u0067\u0065\u003a\u0020"+_ef ._ed ;};if _ef ._cc !=nil {_ga +="\u002e\u0020"+_ef ._cc .Error ();};return _ga ;};func Wrapf (err error ,processName ,message string ,arguments ...interface{})error {if _ec ,_ag :=err .(*processError );_ag {_ec ._g ="";};_dg :=_gae (_c .Sprintf (message ,arguments ...),processName );_dg ._cc =err ;return _dg ;};var _ _a .Wrapper =(*processError )(nil );func Error (processName ,message string )error {return _gae (message ,processName )};func _gae (_bb ,_gd string )*processError {return &processError {_g :"\u005b\u0055\u006e\u0069\u0050\u0044\u0046\u005d",_ed :_bb ,_f :_gd };};
package errors ;import (_a "fmt";_fg "golang.org/x/xerrors";);func Wrap (err error ,processName ,message string )error {if _bgf ,_cb :=err .(*processError );_cb {_bgf ._ae ="";};_d :=_gf (message ,processName );_d ._c =err ;return _d ;};func Errorf (processName ,message string ,arguments ...interface{})error {return _gf (_a .Sprintf (message ,arguments ...),processName );
};func (_fgg *processError )Unwrap ()error {return _fgg ._c };func (_g *processError )Error ()string {var _ac string ;if _g ._ae !=""{_ac =_g ._ae ;};_ac +="\u0050r\u006f\u0063\u0065\u0073\u0073\u003a "+_g ._b ;if _g ._e !=""{_ac +="\u0020\u004d\u0065\u0073\u0073\u0061\u0067\u0065\u003a\u0020"+_g ._e ;
};if _g ._c !=nil {_ac +="\u002e\u0020"+_g ._c .Error ();};return _ac ;};func Wrapf (err error ,processName ,message string ,arguments ...interface{})error {if _df ,_db :=err .(*processError );_db {_df ._ae ="";};_dc :=_gf (_a .Sprintf (message ,arguments ...),processName );
_dc ._c =err ;return _dc ;};type processError struct{_ae string ;_b string ;_e string ;_c error ;};func Error (processName ,message string )error {return _gf (message ,processName )};func _gf (_bg ,_gg string )*processError {return &processError {_ae :"\u005b\u0055\u006e\u0069\u0050\u0044\u0046\u005d",_e :_bg ,_b :_gg };
};var _ _fg .Wrapper =(*processError )(nil );

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internal/jbig2/internal/internal.go
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// 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 internal ;import _b "errors";var ErrOOB =_b .New ("o\u0075\u0074\u0020\u006f\u0066\u0020\u0062\u0061\u006e\u0064");
package internal ;import _d "errors";var ErrOOB =_d .New ("o\u0075\u0074\u0020\u006f\u0066\u0020\u0062\u0061\u006e\u0064");

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internal/jbig2/jbig2.go
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// 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 jbig2 ;import (_ce "github.com/unidoc/unipdf/v3/internal/bitwise";_a "github.com/unidoc/unipdf/v3/internal/jbig2/decoder";_b "github.com/unidoc/unipdf/v3/internal/jbig2/document";_db "github.com/unidoc/unipdf/v3/internal/jbig2/document/segments";_e "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_d "sort";);type Globals map[int ]*_db .Header ;func DecodeBytes (encoded []byte ,parameters _a .Parameters ,globals ...Globals )([]byte ,error ){var _g Globals ;if len (globals )> 0{_g =globals [0];};_f ,_dg :=_a .Decode (encoded ,parameters ,_g .ToDocumentGlobals ());if _dg !=nil {return nil ,_dg ;};return _f .DecodeNextPage ();};func (_fa Globals )ToDocumentGlobals ()*_b .Globals {if _fa ==nil {return nil ;};_bb :=[]*_db .Header {};for _ ,_cb :=range _fa {_bb =append (_bb ,_cb );};_d .Slice (_bb ,func (_ad ,_de int )bool {return _bb [_ad ].SegmentNumber < _bb [_de ].SegmentNumber });return &_b .Globals {Segments :_bb };};func DecodeGlobals (encoded []byte )(Globals ,error ){const _ab ="\u0044\u0065\u0063\u006f\u0064\u0065\u0047\u006c\u006f\u0062\u0061\u006c\u0073";_cd :=_ce .NewReader (encoded );_cg ,_ef :=_b .DecodeDocument (_cd ,nil );if _ef !=nil {return nil ,_e .Wrap (_ef ,_ab ,"");};if _cg .GlobalSegments ==nil ||(_cg .GlobalSegments .Segments ==nil ){return nil ,_e .Error (_ab ,"\u006eo\u0020\u0067\u006c\u006f\u0062\u0061\u006c\u0020\u0073\u0065\u0067m\u0065\u006e\u0074\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};_ff :=Globals {};for _ ,_dc :=range _cg .GlobalSegments .Segments {_ff [int (_dc .SegmentNumber )]=_dc ;};return _ff ,nil ;};
package jbig2 ;import (_d "github.com/unidoc/unipdf/v3/internal/bitwise";_dg "github.com/unidoc/unipdf/v3/internal/jbig2/decoder";_c "github.com/unidoc/unipdf/v3/internal/jbig2/document";_ac "github.com/unidoc/unipdf/v3/internal/jbig2/document/segments";
_eb "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_a "sort";);func DecodeGlobals (encoded []byte )(Globals ,error ){const _f ="\u0044\u0065\u0063\u006f\u0064\u0065\u0047\u006c\u006f\u0062\u0061\u006c\u0073";_ae :=_d .NewReader (encoded );_cec ,_ec :=_c .DecodeDocument (_ae ,nil );
if _ec !=nil {return nil ,_eb .Wrap (_ec ,_f ,"");};if _cec .GlobalSegments ==nil ||(_cec .GlobalSegments .Segments ==nil ){return nil ,_eb .Error (_f ,"\u006eo\u0020\u0067\u006c\u006f\u0062\u0061\u006c\u0020\u0073\u0065\u0067m\u0065\u006e\u0074\u0073\u0020\u0066\u006f\u0075\u006e\u0064");
};_aa :=Globals {};for _ ,_cc :=range _cec .GlobalSegments .Segments {_aa [int (_cc .SegmentNumber )]=_cc ;};return _aa ,nil ;};func (_b Globals )ToDocumentGlobals ()*_c .Globals {if _b ==nil {return nil ;};_aef :=[]*_ac .Header {};for _ ,_dfc :=range _b {_aef =append (_aef ,_dfc );
};_a .Slice (_aef ,func (_ecf ,_cf int )bool {return _aef [_ecf ].SegmentNumber < _aef [_cf ].SegmentNumber });return &_c .Globals {Segments :_aef };};type Globals map[int ]*_ac .Header ;func DecodeBytes (encoded []byte ,parameters _dg .Parameters ,globals ...Globals )([]byte ,error ){var _df Globals ;
if len (globals )> 0{_df =globals [0];};_ce ,_dff :=_dg .Decode (encoded ,parameters ,_df .ToDocumentGlobals ());if _dff !=nil {return nil ,_dff ;};return _ce .DecodeNextPage ();};

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internal/sampling/sampling.go
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// 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 sampling ;import (_a "github.com/unidoc/unipdf/v3/internal/bitwise";_ga "github.com/unidoc/unipdf/v3/internal/imageutil";_g "io";);type SampleWriter interface{WriteSample (_gg uint32 )error ;WriteSamples (_af []uint32 )error ;};func NewWriter (img _ga .ImageBase )*Writer {return &Writer {_ad :_a .NewWriterMSB (img .Data ),_gd :img ,_gdb :img .ColorComponents ,_gae :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};func (_gda *Writer )WriteSamples (samples []uint32 )error {for _bbd :=0;_bbd < len (samples );_bbd ++{if _fbg :=_gda .WriteSample (samples [_bbd ]);_fbg !=nil {return _fbg ;};};return nil ;};func ResampleBytes (data []byte ,bitsPerSample int )[]uint32 {var _deb []uint32 ;_fd :=bitsPerSample ;var _fe uint32 ;var _fea byte ;_gcg :=0;_ead :=0;_dd :=0;for _dd < len (data ){if _gcg > 0{_faf :=_gcg ;if _fd < _faf {_faf =_fd ;};_fe =(_fe <<uint (_faf ))|uint32 (_fea >>uint (8-_faf ));_gcg -=_faf ;if _gcg > 0{_fea =_fea <<uint (_faf );}else {_fea =0;};_fd -=_faf ;if _fd ==0{_deb =append (_deb ,_fe );_fd =bitsPerSample ;_fe =0;_ead ++;};}else {_bf :=data [_dd ];_dd ++;_baa :=8;if _fd < _baa {_baa =_fd ;};_gcg =8-_baa ;_fe =(_fe <<uint (_baa ))|uint32 (_bf >>uint (_gcg ));if _baa < 8{_fea =_bf <<uint (_baa );};_fd -=_baa ;if _fd ==0{_deb =append (_deb ,_fe );_fd =bitsPerSample ;_fe =0;_ead ++;};};};for _gcg >=bitsPerSample {_ec :=_gcg ;if _fd < _ec {_ec =_fd ;};_fe =(_fe <<uint (_ec ))|uint32 (_fea >>uint (8-_ec ));_gcg -=_ec ;if _gcg > 0{_fea =_fea <<uint (_ec );}else {_fea =0;};_fd -=_ec ;if _fd ==0{_deb =append (_deb ,_fe );_fd =bitsPerSample ;_fe =0;_ead ++;};};return _deb ;};type Writer struct{_gd _ga .ImageBase ;_ad *_a .Writer ;_cg ,_gdb int ;_gae bool ;};func (_beg *Writer )WriteSample (sample uint32 )error {if _ ,_gf :=_beg ._ad .WriteBits (uint64 (sample ),_beg ._gd .BitsPerComponent );_gf !=nil {return _gf ;};_beg ._gdb --;if _beg ._gdb ==0{_beg ._gdb =_beg ._gd .ColorComponents ;_beg ._cg ++;};if _beg ._cg ==_beg ._gd .Width {if _beg ._gae {_beg ._ad .FinishByte ();};_beg ._cg =0;};return nil ;};func (_b *Reader )ReadSamples (samples []uint32 )(_de error ){for _ba :=0;_ba < len (samples );_ba ++{samples [_ba ],_de =_b .ReadSample ();if _de !=nil {return _de ;};};return nil ;};func NewReader (img _ga .ImageBase )*Reader {return &Reader {_d :_a .NewReader (img .Data ),_fa :img ,_fac :img .ColorComponents ,_df :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};func (_db *Reader )ReadSample ()(uint32 ,error ){if _db ._ea ==_db ._fa .Height {return 0,_g .EOF ;};_ac ,_gc :=_db ._d .ReadBits (byte (_db ._fa .BitsPerComponent ));if _gc !=nil {return 0,_gc ;};_db ._fac --;if _db ._fac ==0{_db ._fac =_db ._fa .ColorComponents ;_db ._e ++;};if _db ._e ==_db ._fa .Width {if _db ._df {_db ._d .ConsumeRemainingBits ();};_db ._e =0;_db ._ea ++;};return uint32 (_ac ),nil ;};type SampleReader interface{ReadSample ()(uint32 ,error );ReadSamples (_gag []uint32 )error ;};type Reader struct{_fa _ga .ImageBase ;_d *_a .Reader ;_e ,_ea ,_fac int ;_df bool ;};func ResampleUint32 (data []uint32 ,bitsPerInputSample int ,bitsPerOutputSample int )[]uint32 {var _def []uint32 ;_fb :=bitsPerOutputSample ;var _be uint32 ;var _ge uint32 ;_dfc :=0;_c :=0;_ecc :=0;for _ecc < len (data ){if _dfc > 0{_cd :=_dfc ;if _fb < _cd {_cd =_fb ;};_be =(_be <<uint (_cd ))|(_ge >>uint (bitsPerInputSample -_cd ));_dfc -=_cd ;if _dfc > 0{_ge =_ge <<uint (_cd );}else {_ge =0;};_fb -=_cd ;if _fb ==0{_def =append (_def ,_be );_fb =bitsPerOutputSample ;_be =0;_c ++;};}else {_bb :=data [_ecc ];_ecc ++;_da :=bitsPerInputSample ;if _fb < _da {_da =_fb ;};_dfc =bitsPerInputSample -_da ;_be =(_be <<uint (_da ))|(_bb >>uint (_dfc ));if _da < bitsPerInputSample {_ge =_bb <<uint (_da );};_fb -=_da ;if _fb ==0{_def =append (_def ,_be );_fb =bitsPerOutputSample ;_be =0;_c ++;};};};for _dfc >=bitsPerOutputSample {_ed :=_dfc ;if _fb < _ed {_ed =_fb ;};_be =(_be <<uint (_ed ))|(_ge >>uint (bitsPerInputSample -_ed ));_dfc -=_ed ;if _dfc > 0{_ge =_ge <<uint (_ed );}else {_ge =0;};_fb -=_ed ;if _fb ==0{_def =append (_def ,_be );_fb =bitsPerOutputSample ;_be =0;_c ++;};};if _fb > 0&&_fb < bitsPerOutputSample {_be <<=uint (_fb );_def =append (_def ,_be );};return _def ;};
package sampling ;import (_d "github.com/unidoc/unipdf/v3/internal/bitwise";_ca "github.com/unidoc/unipdf/v3/internal/imageutil";_e "io";);func NewWriter (img _ca .ImageBase )*Writer {return &Writer {_eed :_d .NewWriterMSB (img .Data ),_bca :img ,_gg :img .ColorComponents ,_fgc :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };
};func ResampleUint32 (data []uint32 ,bitsPerInputSample int ,bitsPerOutputSample int )[]uint32 {var _gb []uint32 ;_fa :=bitsPerOutputSample ;var _ag uint32 ;var _dd uint32 ;_fg :=0;_db :=0;_gf :=0;for _gf < len (data ){if _fg > 0{_gdg :=_fg ;if _fa < _gdg {_gdg =_fa ;
};_ag =(_ag <<uint (_gdg ))|(_dd >>uint (bitsPerInputSample -_gdg ));_fg -=_gdg ;if _fg > 0{_dd =_dd <<uint (_gdg );}else {_dd =0;};_fa -=_gdg ;if _fa ==0{_gb =append (_gb ,_ag );_fa =bitsPerOutputSample ;_ag =0;_db ++;};}else {_dbd :=data [_gf ];_gf ++;
_dbc :=bitsPerInputSample ;if _fa < _dbc {_dbc =_fa ;};_fg =bitsPerInputSample -_dbc ;_ag =(_ag <<uint (_dbc ))|(_dbd >>uint (_fg ));if _dbc < bitsPerInputSample {_dd =_dbd <<uint (_dbc );};_fa -=_dbc ;if _fa ==0{_gb =append (_gb ,_ag );_fa =bitsPerOutputSample ;
_ag =0;_db ++;};};};for _fg >=bitsPerOutputSample {_fe :=_fg ;if _fa < _fe {_fe =_fa ;};_ag =(_ag <<uint (_fe ))|(_dd >>uint (bitsPerInputSample -_fe ));_fg -=_fe ;if _fg > 0{_dd =_dd <<uint (_fe );}else {_dd =0;};_fa -=_fe ;if _fa ==0{_gb =append (_gb ,_ag );
_fa =bitsPerOutputSample ;_ag =0;_db ++;};};if _fa > 0&&_fa < bitsPerOutputSample {_ag <<=uint (_fa );_gb =append (_gb ,_ag );};return _gb ;};func NewReader (img _ca .ImageBase )*Reader {return &Reader {_eb :_d .NewReader (img .Data ),_cb :img ,_g :img .ColorComponents ,_b :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };
};func (_bb *Reader )ReadSample ()(uint32 ,error ){if _bb ._a ==_bb ._cb .Height {return 0,_e .EOF ;};_cc ,_dc :=_bb ._eb .ReadBits (byte (_bb ._cb .BitsPerComponent ));if _dc !=nil {return 0,_dc ;};_bb ._g --;if _bb ._g ==0{_bb ._g =_bb ._cb .ColorComponents ;
_bb ._da ++;};if _bb ._da ==_bb ._cb .Width {if _bb ._b {_bb ._eb .ConsumeRemainingBits ();};_bb ._da =0;_bb ._a ++;};return uint32 (_cc ),nil ;};type SampleReader interface{ReadSample ()(uint32 ,error );ReadSamples (_f []uint32 )error ;};type SampleWriter interface{WriteSample (_dcb uint32 )error ;
WriteSamples (_bc []uint32 )error ;};type Writer struct{_bca _ca .ImageBase ;_eed *_d .Writer ;_eg ,_gg int ;_fgc bool ;};func (_gbf *Writer )WriteSamples (samples []uint32 )error {for _bd :=0;_bd < len (samples );_bd ++{if _ec :=_gbf .WriteSample (samples [_bd ]);
_ec !=nil {return _ec ;};};return nil ;};type Reader struct{_cb _ca .ImageBase ;_eb *_d .Reader ;_da ,_a ,_g int ;_b bool ;};func (_cf *Writer )WriteSample (sample uint32 )error {if _ ,_afd :=_cf ._eed .WriteBits (uint64 (sample ),_cf ._bca .BitsPerComponent );
_afd !=nil {return _afd ;};_cf ._gg --;if _cf ._gg ==0{_cf ._gg =_cf ._bca .ColorComponents ;_cf ._eg ++;};if _cf ._eg ==_cf ._bca .Width {if _cf ._fgc {_cf ._eed .FinishByte ();};_cf ._eg =0;};return nil ;};func ResampleBytes (data []byte ,bitsPerSample int )[]uint32 {var _dag []uint32 ;
_gd :=bitsPerSample ;var _dab uint32 ;var _ab byte ;_ff :=0;_eeg :=0;_cgf :=0;for _cgf < len (data ){if _ff > 0{_ebf :=_ff ;if _gd < _ebf {_ebf =_gd ;};_dab =(_dab <<uint (_ebf ))|uint32 (_ab >>uint (8-_ebf ));_ff -=_ebf ;if _ff > 0{_ab =_ab <<uint (_ebf );
}else {_ab =0;};_gd -=_ebf ;if _gd ==0{_dag =append (_dag ,_dab );_gd =bitsPerSample ;_dab =0;_eeg ++;};}else {_fc :=data [_cgf ];_cgf ++;_fd :=8;if _gd < _fd {_fd =_gd ;};_ff =8-_fd ;_dab =(_dab <<uint (_fd ))|uint32 (_fc >>uint (_ff ));if _fd < 8{_ab =_fc <<uint (_fd );
};_gd -=_fd ;if _gd ==0{_dag =append (_dag ,_dab );_gd =bitsPerSample ;_dab =0;_eeg ++;};};};for _ff >=bitsPerSample {_af :=_ff ;if _gd < _af {_af =_gd ;};_dab =(_dab <<uint (_af ))|uint32 (_ab >>uint (8-_af ));_ff -=_af ;if _ff > 0{_ab =_ab <<uint (_af );
}else {_ab =0;};_gd -=_af ;if _gd ==0{_dag =append (_dag ,_dab );_gd =bitsPerSample ;_dab =0;_eeg ++;};};return _dag ;};func (_cg *Reader )ReadSamples (samples []uint32 )(_ee error ){for _ccf :=0;_ccf < len (samples );_ccf ++{samples [_ccf ],_ee =_cg .ReadSample ();
if _ee !=nil {return _ee ;};};return nil ;};

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model/optimize/optimize.go
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model/sighandler/sighandler.go
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// terms that can be accessed at https://unidoc.io/eula/
// Package sighandler implements digital signature handlers for PDF signature validation and signing.
package sighandler ;import (_g "bytes";_dg "crypto";_af "crypto/rand";_df "crypto/rsa";_cc "crypto/x509";_f "crypto/x509/pkix";_b "encoding/asn1";_eg "errors";_c "fmt";_ccd "github.com/unidoc/pkcs7";_da "github.com/unidoc/timestamp";_be "github.com/unidoc/unipdf/v3/core";_fe "github.com/unidoc/unipdf/v3/model";_daa "github.com/unidoc/unipdf/v3/model/sigutil";_a "hash";_e "time";);
package sighandler ;import (_bc "bytes";_d "crypto";_ec "crypto/rand";_da "crypto/rsa";_cb "crypto/x509";_bd "crypto/x509/pkix";_c "encoding/asn1";_ed "errors";_a "fmt";_cf "github.com/unidoc/pkcs7";_aa "github.com/unidoc/timestamp";_ca "github.com/unidoc/unipdf/v3/core";
_cg "github.com/unidoc/unipdf/v3/model";_g "github.com/unidoc/unipdf/v3/model/sigutil";_e "hash";_f "time";);
// NewEmptyAdobePKCS7Detached creates a new Adobe.PPKMS/Adobe.PPKLite adbe.pkcs7.detached
// signature handler. The generated signature is empty and of size signatureLen.
// The signatureLen parameter can be 0 for the signature validation.
func NewEmptyAdobePKCS7Detached (signatureLen int )(_fe .SignatureHandler ,error ){return &adobePKCS7Detached {_fea :true ,_db :signatureLen },nil ;};
// NewDigest creates a new digest.
func (_dge *docTimeStamp )NewDigest (sig *_cg .PdfSignature )(_cg .Hasher ,error ){return _bc .NewBuffer (nil ),nil ;};
// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
func (_ace *adobeX509RSASHA1 )IsApplicable (sig *_fe .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031";};
// Sign sets the Contents fields for the PdfSignature.
func (_dfc *adobeX509RSASHA1 )Sign (sig *_fe .PdfSignature ,digest _fe .Hasher )error {var _efc []byte ;var _ceg error ;if _dfc ._ag !=nil {_efc ,_ceg =_dfc ._ag (sig ,digest );if _ceg !=nil {return _ceg ;};}else {_cce ,_fbg :=digest .(_a .Hash );if !_fbg {return _eg .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_aab ,_ :=_bgf (_dfc ._aba .SignatureAlgorithm );_efc ,_ceg =_df .SignPKCS1v15 (_af .Reader ,_dfc ._aa ,_aab ,_cce .Sum (nil ));if _ceg !=nil {return _ceg ;};};_efc ,_ceg =_b .Marshal (_efc );if _ceg !=nil {return _ceg ;};sig .Contents =_be .MakeHexString (string (_efc ));return nil ;};
// NewAdobeX509RSASHA1Custom creates a new Adobe.PPKMS/Adobe.PPKLite
// adbe.x509.rsa_sha1 signature handler with a custom signing function. Both the
// certificate and the sign function can be nil for the signature validation.
// NOTE: the handler will do a mock Sign when initializing the signature in
// order to estimate the signature size. Use NewAdobeX509RSASHA1CustomWithOpts
// for configuring the handler to estimate the signature size.
func NewAdobeX509RSASHA1Custom (certificate *_cc .Certificate ,signFunc SignFunc )(_fe .SignatureHandler ,error ){return &adobeX509RSASHA1 {_aba :certificate ,_ag :signFunc },nil ;};
// NewAdobeX509RSASHA1 creates a new Adobe.PPKMS/Adobe.PPKLite
// adbe.x509.rsa_sha1 signature handler. Both the private key and the
// certificate can be nil for the signature validation.
func NewAdobeX509RSASHA1 (privateKey *_da .PrivateKey ,certificate *_cb .Certificate )(_cg .SignatureHandler ,error ){return &adobeX509RSASHA1 {_cbb :certificate ,_efc :privateKey },nil ;};func (_ffa *adobePKCS7Detached )getCertificate (_bca *_cg .PdfSignature )(*_cb .Certificate ,error ){if _ffa ._df !=nil {return _ffa ._df ,nil ;
};_dfc ,_fa :=_bca .GetCerts ();if _fa !=nil {return nil ,_fa ;};return _dfc [0],nil ;};func _db (_bcg _cb .SignatureAlgorithm )(_d .Hash ,bool ){var _dbd _d .Hash ;switch _bcg {case _cb .SHA1WithRSA :_dbd =_d .SHA1 ;case _cb .SHA256WithRSA :_dbd =_d .SHA256 ;
case _cb .SHA384WithRSA :_dbd =_d .SHA384 ;case _cb .SHA512WithRSA :_dbd =_d .SHA512 ;default:return _d .SHA1 ,false ;};return _dbd ,true ;};type timestampInfo struct{Version int ;Policy _c .RawValue ;MessageImprint struct{HashAlgorithm _bd .AlgorithmIdentifier ;
HashedMessage []byte ;};SerialNumber _c .RawValue ;GeneralizedTime _f .Time ;};
// InitSignature initialises the PdfSignature.
func (_afb *adobeX509RSASHA1 )InitSignature (sig *_fe .PdfSignature )error {if _afb ._aba ==nil {return _eg .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");};if _afb ._aa ==nil &&_afb ._ag ==nil {return _eg .New ("\u006d\u0075\u0073\u0074\u0020\u0070\u0072o\u0076\u0069\u0064e\u0020\u0065\u0069t\u0068\u0065r\u0020\u0061\u0020\u0070\u0072\u0069v\u0061te\u0020\u006b\u0065\u0079\u0020\u006f\u0072\u0020\u0061\u0020\u0073\u0069\u0067\u006e\u0069\u006e\u0067\u0020\u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");};_dd :=*_afb ;sig .Handler =&_dd ;sig .Filter =_be .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_be .MakeName ("\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031");sig .Cert =_be .MakeString (string (_dd ._aba .Raw ));sig .Reference =nil ;_dc ,_bd :=_dd .NewDigest (sig );if _bd !=nil {return _bd ;};_dc .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _dd .sign (sig ,_dc ,_afb ._feb );};type adobePKCS7Detached struct{_bg *_df .PrivateKey ;_ec *_cc .Certificate ;_fea bool ;_db int ;};
func (_gc *adobePKCS7Detached )InitSignature (sig *_cg .PdfSignature )error {if !_gc ._ce {if _gc ._df ==nil {return _ed .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");
};if _gc ._ag ==nil {return _ed .New ("\u0070\u0072\u0069\u0076\u0061\u0074\u0065\u004b\u0065\u0079\u0020m\u0075\u0073\u0074\u0020\u006e\u006f\u0074\u0020\u0062\u0065 \u006e\u0069\u006c");};};_de :=*_gc ;sig .Handler =&_de ;sig .Filter =_ca .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");
sig .SubFilter =_ca .MakeName ("\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064");sig .Reference =nil ;_ff ,_gg :=_de .NewDigest (sig );if _gg !=nil {return _gg ;};_ff .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));
return _de .Sign (sig ,_ff );};
// NewDocTimeStampWithOpts returns a new DocTimeStamp configured using the
// specified options. If no options are provided, default options will be used.
// Sign sets the Contents fields.
func (_ef *adobePKCS7Detached )Sign (sig *_cg .PdfSignature ,digest _cg .Hasher )error {if _ef ._ce {_fe :=_ef ._fc ;if _fe <=0{_fe =8192;};sig .Contents =_ca .MakeHexString (string (make ([]byte ,_fe )));return nil ;};_be :=digest .(*_bc .Buffer );_ac ,_gd :=_cf .NewSignedData (_be .Bytes ());
if _gd !=nil {return _gd ;};if _cag :=_ac .AddSigner (_ef ._df ,_ef ._ag ,_cf .SignerInfoConfig {});_cag !=nil {return _cag ;};_ac .Detach ();_fad ,_gd :=_ac .Finish ();if _gd !=nil {return _gd ;};_dfe :=make ([]byte ,8192);copy (_dfe ,_fad );sig .Contents =_ca .MakeHexString (string (_dfe ));
return nil ;};type adobePKCS7Detached struct{_ag *_da .PrivateKey ;_df *_cb .Certificate ;_ce bool ;_fc int ;};
// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
func (_ebf *docTimeStamp )IsApplicable (sig *_cg .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031";
};
// NewDocTimeStamp creates a new DocTimeStamp signature handler.
// Both the timestamp server URL and the hash algorithm can be empty for the
// signature validation.
// The following hash algorithms are supported:
// crypto.SHA1, crypto.SHA256, crypto.SHA384, crypto.SHA512.
func NewDocTimeStampWithOpts (timestampServerURL string ,hashAlgorithm _dg .Hash ,opts *DocTimeStampOpts )(_fe .SignatureHandler ,error ){if opts ==nil {opts =&DocTimeStampOpts {};};if opts .SignatureSize <=0{opts .SignatureSize =4192;};return &docTimeStamp {_dbd :timestampServerURL ,_abe :hashAlgorithm ,_ddf :opts .SignatureSize },nil ;};
// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
func (_fc *docTimeStamp )IsApplicable (sig *_fe .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031";};func _abc (_adf _b .ObjectIdentifier )(_dg .Hash ,error ){switch {case _adf .Equal (_ccd .OIDDigestAlgorithmSHA1 ),_adf .Equal (_ccd .OIDDigestAlgorithmECDSASHA1 ),_adf .Equal (_ccd .OIDDigestAlgorithmDSA ),_adf .Equal (_ccd .OIDDigestAlgorithmDSASHA1 ),_adf .Equal (_ccd .OIDEncryptionAlgorithmRSA ):return _dg .SHA1 ,nil ;case _adf .Equal (_ccd .OIDDigestAlgorithmSHA256 ),_adf .Equal (_ccd .OIDDigestAlgorithmECDSASHA256 ):return _dg .SHA256 ,nil ;case _adf .Equal (_ccd .OIDDigestAlgorithmSHA384 ),_adf .Equal (_ccd .OIDDigestAlgorithmECDSASHA384 ):return _dg .SHA384 ,nil ;case _adf .Equal (_ccd .OIDDigestAlgorithmSHA512 ),_adf .Equal (_ccd .OIDDigestAlgorithmECDSASHA512 ):return _dg .SHA512 ,nil ;};return _dg .Hash (0),_ccd .ErrUnsupportedAlgorithm ;};
// InitSignature initialises the PdfSignature.
func (_gc *adobePKCS7Detached )InitSignature (sig *_fe .PdfSignature )error {if !_gc ._fea {if _gc ._ec ==nil {return _eg .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");};if _gc ._bg ==nil {return _eg .New ("\u0070\u0072\u0069\u0076\u0061\u0074\u0065\u004b\u0065\u0079\u0020m\u0075\u0073\u0074\u0020\u006e\u006f\u0074\u0020\u0062\u0065 \u006e\u0069\u006c");};};_bf :=*_gc ;sig .Handler =&_bf ;sig .Filter =_be .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_be .MakeName ("\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064");sig .Reference =nil ;_ef ,_cb :=_bf .NewDigest (sig );if _cb !=nil {return _cb ;};_ef .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _bf .Sign (sig ,_ef );};
// NewAdobePKCS7Detached creates a new Adobe.PPKMS/Adobe.PPKLite adbe.pkcs7.detached signature handler.
// Both parameters may be nil for the signature validation.
func NewAdobePKCS7Detached (privateKey *_df .PrivateKey ,certificate *_cc .Certificate )(_fe .SignatureHandler ,error ){return &adobePKCS7Detached {_ec :certificate ,_bg :privateKey },nil ;};
// NOTE: the handler will do a mock Sign when initializing the signature
// in order to estimate the signature size. Use NewDocTimeStampWithOpts
// for providing the signature size.
func NewDocTimeStamp (timestampServerURL string ,hashAlgorithm _d .Hash )(_cg .SignatureHandler ,error ){return &docTimeStamp {_beb :timestampServerURL ,_dce :hashAlgorithm },nil ;};
// NewAdobeX509RSASHA1CustomWithOpts creates a new Adobe.PPKMS/Adobe.PPKLite
// adbe.x509.rsa_sha1 signature handler with a custom signing function. The
// handler is configured based on the provided options. If no options are
// provided, default options will be used. Both the certificate and the sign
// function can be nil for the signature validation.
func NewAdobeX509RSASHA1CustomWithOpts (certificate *_cc .Certificate ,signFunc SignFunc ,opts *AdobeX509RSASHA1Opts )(_fe .SignatureHandler ,error ){if opts ==nil {opts =&AdobeX509RSASHA1Opts {};};return &adobeX509RSASHA1 {_aba :certificate ,_ag :signFunc ,_feb :opts .EstimateSize },nil ;};func (_cfd *adobeX509RSASHA1 )sign (_ebb *_fe .PdfSignature ,_agc _fe .Hasher ,_ac bool )error {if !_ac {return _cfd .Sign (_ebb ,_agc );};_gg ,_ee :=_cfd ._aba .PublicKey .(*_df .PublicKey );if !_ee {return _c .Errorf ("i\u006e\u0076\u0061\u006c\u0069\u0064 \u0070\u0075\u0062\u006c\u0069\u0063\u0020\u006b\u0065y\u0020\u0074\u0079p\u0065:\u0020\u0025\u0054",_gg );};_cge ,_aea :=_b .Marshal (make ([]byte ,_gg .Size ()));if _aea !=nil {return _aea ;};_ebb .Contents =_be .MakeHexString (string (_cge ));return nil ;};
// NewDigest creates a new digest.
func (_fd *docTimeStamp )NewDigest (sig *_fe .PdfSignature )(_fe .Hasher ,error ){return _g .NewBuffer (nil ),nil ;};
// SignFunc represents a custom signing function. The function should return
// the computed signature.
type SignFunc func (_ff *_fe .PdfSignature ,_fb _fe .Hasher )([]byte ,error );
// InitSignature initialises the PdfSignature.
func (_dgc *docTimeStamp )InitSignature (sig *_fe .PdfSignature )error {_aabb :=*_dgc ;sig .Handler =&_aabb ;sig .Filter =_be .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_be .MakeName ("\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031");sig .Reference =nil ;if _dgc ._ddf > 0{sig .Contents =_be .MakeHexString (string (make ([]byte ,_dgc ._ddf )));}else {_eeb ,_cdc :=_dgc .NewDigest (sig );if _cdc !=nil {return _cdc ;};_eeb .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));if _cdc =_aabb .Sign (sig ,_eeb );_cdc !=nil {return _cdc ;};_dgc ._ddf =_aabb ._ddf ;};return nil ;};
// NewDigest creates a new digest.
func (_eb *adobeX509RSASHA1 )NewDigest (sig *_fe .PdfSignature )(_fe .Hasher ,error ){_gee ,_ade :=_eb .getCertificate (sig );if _ade !=nil {return nil ,_ade ;};_aacf ,_ :=_bgf (_gee .SignatureAlgorithm );return _aacf .New (),nil ;};
func NewAdobeX509RSASHA1CustomWithOpts (certificate *_cb .Certificate ,signFunc SignFunc ,opts *AdobeX509RSASHA1Opts )(_cg .SignatureHandler ,error ){if opts ==nil {opts =&AdobeX509RSASHA1Opts {};};return &adobeX509RSASHA1 {_cbb :certificate ,_gf :signFunc ,_ge :opts .EstimateSize },nil ;
};
// IsApplicable returns true if the signature handler is applicable for the PdfSignature
func (_gdf *adobePKCS7Detached )IsApplicable (sig *_fe .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064";};
// Validate validates PdfSignature.
func (_cca *docTimeStamp )Validate (sig *_fe .PdfSignature ,digest _fe .Hasher )(_fe .SignatureValidationResult ,error ){_febd :=sig .Contents .Bytes ();_ced ,_bff :=_ccd .Parse (_febd );if _bff !=nil {return _fe .SignatureValidationResult {},_bff ;};if _bff =_ced .Verify ();_bff !=nil {return _fe .SignatureValidationResult {},_bff ;};var _abb timestampInfo ;_ ,_bff =_b .Unmarshal (_ced .Content ,&_abb );if _bff !=nil {return _fe .SignatureValidationResult {},_bff ;};_ed ,_bff :=_abc (_abb .MessageImprint .HashAlgorithm .Algorithm );if _bff !=nil {return _fe .SignatureValidationResult {},_bff ;};_cdg :=_ed .New ();_ebe :=digest .(*_g .Buffer );_cdg .Write (_ebe .Bytes ());_ddc :=_cdg .Sum (nil );_feg :=_fe .SignatureValidationResult {IsSigned :true ,IsVerified :_g .Equal (_ddc ,_abb .MessageImprint .HashedMessage ),GeneralizedTime :_abb .GeneralizedTime };return _feg ,nil ;};type adobeX509RSASHA1 struct{_aa *_df .PrivateKey ;_aba *_cc .Certificate ;_ag SignFunc ;_feb bool ;};
// Validate validates PdfSignature.
func (_bc *adobePKCS7Detached )Validate (sig *_fe .PdfSignature ,digest _fe .Hasher )(_fe .SignatureValidationResult ,error ){_fgb :=sig .Contents .Bytes ();_gd ,_efa :=_ccd .Parse (_fgb );if _efa !=nil {return _fe .SignatureValidationResult {},_efa ;};_fef :=digest .(*_g .Buffer );_gd .Content =_fef .Bytes ();if _efa =_gd .Verify ();_efa !=nil {return _fe .SignatureValidationResult {},_efa ;};return _fe .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};
// Sign sets the Contents fields for the PdfSignature.
func (_agd *docTimeStamp )Sign (sig *_fe .PdfSignature ,digest _fe .Hasher )error {_cad ,_fbb :=_daa .NewTimestampRequest (digest .(*_g .Buffer ),&_da .RequestOptions {Hash :_agd ._abe ,Certificates :true });if _fbb !=nil {return _fbb ;};_cgb :=_daa .NewTimestampClient ();_baf ,_fbb :=_cgb .GetEncodedToken (_agd ._dbd ,_cad );if _fbb !=nil {return _fbb ;};_bbfg :=len (_baf );if _agd ._ddf > 0&&_bbfg > _agd ._ddf {return _fe .ErrSignNotEnoughSpace ;};if _bbfg > 0{_agd ._ddf =_bbfg +128;};sig .Contents =_be .MakeHexString (string (_baf ));return nil ;};func (_cf *adobePKCS7Detached )getCertificate (_ge *_fe .PdfSignature )(*_cc .Certificate ,error ){if _cf ._ec !=nil {return _cf ._ec ,nil ;};_fg ,_cg :=_ge .GetCerts ();if _cg !=nil {return nil ,_cg ;};return _fg [0],nil ;};type docTimeStamp struct{_dbd string ;_abe _dg .Hash ;_ddf int ;};
// Validate validates PdfSignature.
func (_cfb *adobeX509RSASHA1 )Validate (sig *_fe .PdfSignature ,digest _fe .Hasher )(_fe .SignatureValidationResult ,error ){_dde ,_cfa :=_cfb .getCertificate (sig );if _cfa !=nil {return _fe .SignatureValidationResult {},_cfa ;};_gcd :=sig .Contents .Bytes ();var _dacb []byte ;if _ ,_bgd :=_b .Unmarshal (_gcd ,&_dacb );_bgd !=nil {return _fe .SignatureValidationResult {},_bgd ;};_bb ,_ce :=digest .(_a .Hash );if !_ce {return _fe .SignatureValidationResult {},_eg .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_dbe ,_ :=_bgf (_dde .SignatureAlgorithm );if _cfc :=_df .VerifyPKCS1v15 (_dde .PublicKey .(*_df .PublicKey ),_dbe ,_bb .Sum (nil ),_dacb );_cfc !=nil {return _fe .SignatureValidationResult {},_cfc ;};return _fe .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};
func (_fg *adobePKCS7Detached )IsApplicable (sig *_cg .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064";
};func (_gce *adobeX509RSASHA1 )getCertificate (_bg *_cg .PdfSignature )(*_cb .Certificate ,error ){if _gce ._cbb !=nil {return _gce ._cbb ,nil ;};_cfe ,_caa :=_bg .GetCerts ();if _caa !=nil {return nil ,_caa ;};return _cfe [0],nil ;};func _acg (_ggd _c .ObjectIdentifier )(_d .Hash ,error ){switch {case _ggd .Equal (_cf .OIDDigestAlgorithmSHA1 ),_ggd .Equal (_cf .OIDDigestAlgorithmECDSASHA1 ),_ggd .Equal (_cf .OIDDigestAlgorithmDSA ),_ggd .Equal (_cf .OIDDigestAlgorithmDSASHA1 ),_ggd .Equal (_cf .OIDEncryptionAlgorithmRSA ):return _d .SHA1 ,nil ;
case _ggd .Equal (_cf .OIDDigestAlgorithmSHA256 ),_ggd .Equal (_cf .OIDDigestAlgorithmECDSASHA256 ):return _d .SHA256 ,nil ;case _ggd .Equal (_cf .OIDDigestAlgorithmSHA384 ),_ggd .Equal (_cf .OIDDigestAlgorithmECDSASHA384 ):return _d .SHA384 ,nil ;case _ggd .Equal (_cf .OIDDigestAlgorithmSHA512 ),_ggd .Equal (_cf .OIDDigestAlgorithmECDSASHA512 ):return _d .SHA512 ,nil ;
};return _d .Hash (0),_cf .ErrUnsupportedAlgorithm ;};
// AdobeX509RSASHA1Opts defines options for configuring the adbe.x509.rsa_sha1
// signature handler.
@ -97,6 +73,69 @@ type AdobeX509RSASHA1Opts struct{
// call is made in order to estimate the size of the signature contents.
EstimateSize bool ;};
// NewAdobePKCS7Detached creates a new Adobe.PPKMS/Adobe.PPKLite adbe.pkcs7.detached signature handler.
// Both parameters may be nil for the signature validation.
func NewAdobePKCS7Detached (privateKey *_da .PrivateKey ,certificate *_cb .Certificate )(_cg .SignatureHandler ,error ){return &adobePKCS7Detached {_df :certificate ,_ag :privateKey },nil ;};
// NewDocTimeStampWithOpts returns a new DocTimeStamp configured using the
// specified options. If no options are provided, default options will be used.
// Both the timestamp server URL and the hash algorithm can be empty for the
// signature validation.
// The following hash algorithms are supported:
// crypto.SHA1, crypto.SHA256, crypto.SHA384, crypto.SHA512.
func NewDocTimeStampWithOpts (timestampServerURL string ,hashAlgorithm _d .Hash ,opts *DocTimeStampOpts )(_cg .SignatureHandler ,error ){if opts ==nil {opts =&DocTimeStampOpts {};};if opts .SignatureSize <=0{opts .SignatureSize =4192;};return &docTimeStamp {_beb :timestampServerURL ,_dce :hashAlgorithm ,_abbc :opts .SignatureSize },nil ;
};
// InitSignature initialises the PdfSignature.
func (_cbc *docTimeStamp )InitSignature (sig *_cg .PdfSignature )error {_gde :=*_cbc ;sig .Handler =&_gde ;sig .Filter =_ca .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_ca .MakeName ("\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031");
sig .Reference =nil ;if _cbc ._abbc > 0{sig .Contents =_ca .MakeHexString (string (make ([]byte ,_cbc ._abbc )));}else {_caac ,_ddb :=_cbc .NewDigest (sig );if _ddb !=nil {return _ddb ;};_caac .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));
if _ddb =_gde .Sign (sig ,_caac );_ddb !=nil {return _ddb ;};_cbc ._abbc =_gde ._abbc ;};return nil ;};type docTimeStamp struct{_beb string ;_dce _d .Hash ;_abbc int ;};
// Sign sets the Contents fields for the PdfSignature.
func (_gcc *docTimeStamp )Sign (sig *_cg .PdfSignature ,digest _cg .Hasher )error {_edc ,_eg :=_g .NewTimestampRequest (digest .(*_bc .Buffer ),&_aa .RequestOptions {Hash :_gcc ._dce ,Certificates :true });if _eg !=nil {return _eg ;};_gge :=_g .NewTimestampClient ();
_geb ,_eg :=_gge .GetEncodedToken (_gcc ._beb ,_edc );if _eg !=nil {return _eg ;};_cfee :=len (_geb );if _gcc ._abbc > 0&&_cfee > _gcc ._abbc {return _cg .ErrSignNotEnoughSpace ;};if _cfee > 0{_gcc ._abbc =_cfee +128;};sig .Contents =_ca .MakeHexString (string (_geb ));
return nil ;};type adobeX509RSASHA1 struct{_efc *_da .PrivateKey ;_cbb *_cb .Certificate ;_gf SignFunc ;_ge bool ;};
// Validate validates PdfSignature.
func (_aga *docTimeStamp )Validate (sig *_cg .PdfSignature ,digest _cg .Hasher )(_cg .SignatureValidationResult ,error ){_aee :=sig .Contents .Bytes ();_ggc ,_dga :=_cf .Parse (_aee );if _dga !=nil {return _cg .SignatureValidationResult {},_dga ;};if _dga =_ggc .Verify ();
_dga !=nil {return _cg .SignatureValidationResult {},_dga ;};var _gfb timestampInfo ;_ ,_dga =_c .Unmarshal (_ggc .Content ,&_gfb );if _dga !=nil {return _cg .SignatureValidationResult {},_dga ;};_bgdg ,_dga :=_acg (_gfb .MessageImprint .HashAlgorithm .Algorithm );
if _dga !=nil {return _cg .SignatureValidationResult {},_dga ;};_dbg :=_bgdg .New ();_eb :=digest .(*_bc .Buffer );_dbg .Write (_eb .Bytes ());_aea :=_dbg .Sum (nil );_afe :=_cg .SignatureValidationResult {IsSigned :true ,IsVerified :_bc .Equal (_aea ,_gfb .MessageImprint .HashedMessage ),GeneralizedTime :_gfb .GeneralizedTime };
return _afe ,nil ;};
// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
func (_beg *adobeX509RSASHA1 )IsApplicable (sig *_cg .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031";
};
// Sign sets the Contents fields for the PdfSignature.
func (_bb *adobeX509RSASHA1 )Sign (sig *_cg .PdfSignature ,digest _cg .Hasher )error {var _bf []byte ;var _gbde error ;if _bb ._gf !=nil {_bf ,_gbde =_bb ._gf (sig ,digest );if _gbde !=nil {return _gbde ;};}else {_efd ,_ggb :=digest .(_e .Hash );if !_ggb {return _ed .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");
};_dde ,_ :=_db (_bb ._cbb .SignatureAlgorithm );_bf ,_gbde =_da .SignPKCS1v15 (_ec .Reader ,_bb ._efc ,_dde ,_efd .Sum (nil ));if _gbde !=nil {return _gbde ;};};_bf ,_gbde =_c .Marshal (_bf );if _gbde !=nil {return _gbde ;};sig .Contents =_ca .MakeHexString (string (_bf ));
return nil ;};
// SignFunc represents a custom signing function. The function should return
// the computed signature.
type SignFunc func (_agb *_cg .PdfSignature ,_gbd _cg .Hasher )([]byte ,error );
// NewDigest creates a new digest.
func (_aab *adobePKCS7Detached )NewDigest (sig *_cg .PdfSignature )(_cg .Hasher ,error ){return _bc .NewBuffer (nil ),nil ;};
// NewEmptyAdobePKCS7Detached creates a new Adobe.PPKMS/Adobe.PPKLite adbe.pkcs7.detached
// signature handler. The generated signature is empty and of size signatureLen.
// The signatureLen parameter can be 0 for the signature validation.
func NewEmptyAdobePKCS7Detached (signatureLen int )(_cg .SignatureHandler ,error ){return &adobePKCS7Detached {_ce :true ,_fc :signatureLen },nil ;};
// InitSignature initialises the PdfSignature.
func (_cbf *adobeX509RSASHA1 )InitSignature (sig *_cg .PdfSignature )error {if _cbf ._cbb ==nil {return _ed .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");
};if _cbf ._efc ==nil &&_cbf ._gf ==nil {return _ed .New ("\u006d\u0075\u0073\u0074\u0020\u0070\u0072o\u0076\u0069\u0064e\u0020\u0065\u0069t\u0068\u0065r\u0020\u0061\u0020\u0070\u0072\u0069v\u0061te\u0020\u006b\u0065\u0079\u0020\u006f\u0072\u0020\u0061\u0020\u0073\u0069\u0067\u006e\u0069\u006e\u0067\u0020\u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");
};_cba :=*_cbf ;sig .Handler =&_cba ;sig .Filter =_ca .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_ca .MakeName ("\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031");
sig .Cert =_ca .MakeString (string (_cba ._cbb .Raw ));sig .Reference =nil ;_bdf ,_deb :=_cba .NewDigest (sig );if _deb !=nil {return _deb ;};_bdf .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));
return _cba .sign (sig ,_bdf ,_cbf ._ge );};
// Validate validates PdfSignature.
func (_dc *adobeX509RSASHA1 )Validate (sig *_cg .PdfSignature ,digest _cg .Hasher )(_cg .SignatureValidationResult ,error ){_dbc ,_bcd :=_dc .getCertificate (sig );if _bcd !=nil {return _cg .SignatureValidationResult {},_bcd ;};_dad :=sig .Contents .Bytes ();
var _cc []byte ;if _ ,_aad :=_c .Unmarshal (_dad ,&_cc );_aad !=nil {return _cg .SignatureValidationResult {},_aad ;};_bgd ,_af :=digest .(_e .Hash );if !_af {return _cg .SignatureValidationResult {},_ed .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");
};_dfb ,_ :=_db (_dbc .SignatureAlgorithm );if _fbg :=_da .VerifyPKCS1v15 (_dbc .PublicKey .(*_da .PublicKey ),_dfb ,_bgd .Sum (nil ),_cc );_fbg !=nil {return _cg .SignatureValidationResult {},_fbg ;};return _cg .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;
};
// DocTimeStampOpts defines options for configuring the timestamp handler.
type DocTimeStampOpts struct{
@ -105,25 +144,22 @@ type DocTimeStampOpts struct{
// The signing process will report the model.ErrSignNotEnoughSpace error
// if the estimated signature size is smaller than the actual size of the
// signature.
SignatureSize int ;};func (_cgd *adobeX509RSASHA1 )getCertificate (_gda *_fe .PdfSignature )(*_cc .Certificate ,error ){if _cgd ._aba !=nil {return _cgd ._aba ,nil ;};_aac ,_ca :=_gda .GetCerts ();if _ca !=nil {return nil ,_ca ;};return _aac [0],nil ;};
SignatureSize int ;};
// NewDigest creates a new digest.
func (_ged *adobePKCS7Detached )NewDigest (sig *_fe .PdfSignature )(_fe .Hasher ,error ){return _g .NewBuffer (nil ),nil ;};
func (_bgb *adobeX509RSASHA1 )NewDigest (sig *_cg .PdfSignature )(_cg .Hasher ,error ){_cbaa ,_gef :=_bgb .getCertificate (sig );if _gef !=nil {return nil ,_gef ;};_ffb ,_ :=_db (_cbaa .SignatureAlgorithm );return _ffb .New (),nil ;};
// NewDocTimeStamp creates a new DocTimeStamp signature handler.
// Both the timestamp server URL and the hash algorithm can be empty for the
// signature validation.
// The following hash algorithms are supported:
// crypto.SHA1, crypto.SHA256, crypto.SHA384, crypto.SHA512.
// NOTE: the handler will do a mock Sign when initializing the signature
// in order to estimate the signature size. Use NewDocTimeStampWithOpts
// for providing the signature size.
func NewDocTimeStamp (timestampServerURL string ,hashAlgorithm _dg .Hash )(_fe .SignatureHandler ,error ){return &docTimeStamp {_dbd :timestampServerURL ,_abe :hashAlgorithm },nil ;};func (_eed *docTimeStamp )getCertificate (_ea *_fe .PdfSignature )(*_cc .Certificate ,error ){_bbf ,_gbb :=_ea .GetCerts ();if _gbb !=nil {return nil ,_gbb ;};return _bbf [0],nil ;};
// Validate validates PdfSignature.
func (_dd *adobePKCS7Detached )Validate (sig *_cg .PdfSignature ,digest _cg .Hasher )(_cg .SignatureValidationResult ,error ){_dg :=sig .Contents .Bytes ();_gb ,_bcf :=_cf .Parse (_dg );if _bcf !=nil {return _cg .SignatureValidationResult {},_bcf ;};_bce :=digest .(*_bc .Buffer );
_gb .Content =_bce .Bytes ();if _bcf =_gb .Verify ();_bcf !=nil {return _cg .SignatureValidationResult {},_bcf ;};return _cg .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};
// NewAdobeX509RSASHA1 creates a new Adobe.PPKMS/Adobe.PPKLite
// adbe.x509.rsa_sha1 signature handler. Both the private key and the
// certificate can be nil for the signature validation.
func NewAdobeX509RSASHA1 (privateKey *_df .PrivateKey ,certificate *_cc .Certificate )(_fe .SignatureHandler ,error ){return &adobeX509RSASHA1 {_aba :certificate ,_aa :privateKey },nil ;};
// Sign sets the Contents fields.
func (_ad *adobePKCS7Detached )Sign (sig *_fe .PdfSignature ,digest _fe .Hasher )error {if _ad ._fea {_cgc :=_ad ._db ;if _cgc <=0{_cgc =8192;};sig .Contents =_be .MakeHexString (string (make ([]byte ,_cgc )));return nil ;};_fa :=digest .(*_g .Buffer );_ba ,_dac :=_ccd .NewSignedData (_fa .Bytes ());if _dac !=nil {return _dac ;};if _cfg :=_ba .AddSigner (_ad ._ec ,_ad ._bg ,_ccd .SignerInfoConfig {});_cfg !=nil {return _cfg ;};_ba .Detach ();_ab ,_dac :=_ba .Finish ();if _dac !=nil {return _dac ;};_fga :=make ([]byte ,8192);copy (_fga ,_ab );sig .Contents =_be .MakeHexString (string (_fga ));return nil ;};func _bgf (_afbg _cc .SignatureAlgorithm )(_dg .Hash ,bool ){var _gb _dg .Hash ;switch _afbg {case _cc .SHA1WithRSA :_gb =_dg .SHA1 ;case _cc .SHA256WithRSA :_gb =_dg .SHA256 ;case _cc .SHA384WithRSA :_gb =_dg .SHA384 ;case _cc .SHA512WithRSA :_gb =_dg .SHA512 ;default:return _dg .SHA1 ,false ;};return _gb ,true ;};type timestampInfo struct{Version int ;Policy _b .RawValue ;MessageImprint struct{HashAlgorithm _f .AlgorithmIdentifier ;HashedMessage []byte ;};SerialNumber _b .RawValue ;GeneralizedTime _e .Time ;};
// NewAdobeX509RSASHA1Custom creates a new Adobe.PPKMS/Adobe.PPKLite
// adbe.x509.rsa_sha1 signature handler with a custom signing function. Both the
// certificate and the sign function can be nil for the signature validation.
// NOTE: the handler will do a mock Sign when initializing the signature in
// order to estimate the signature size. Use NewAdobeX509RSASHA1CustomWithOpts
// for configuring the handler to estimate the signature size.
func NewAdobeX509RSASHA1Custom (certificate *_cb .Certificate ,signFunc SignFunc )(_cg .SignatureHandler ,error ){return &adobeX509RSASHA1 {_cbb :certificate ,_gf :signFunc },nil ;};func (_dfed *docTimeStamp )getCertificate (_ga *_cg .PdfSignature )(*_cb .Certificate ,error ){_bcff ,_cgc :=_ga .GetCerts ();
if _cgc !=nil {return nil ,_cgc ;};return _bcff [0],nil ;};func (_ede *adobeX509RSASHA1 )sign (_bfd *_cg .PdfSignature ,_ddd _cg .Hasher ,_bfg bool )error {if !_bfg {return _ede .Sign (_bfd ,_ddd );};_dba ,_fgc :=_ede ._cbb .PublicKey .(*_da .PublicKey );
if !_fgc {return _a .Errorf ("i\u006e\u0076\u0061\u006c\u0069\u0064 \u0070\u0075\u0062\u006c\u0069\u0063\u0020\u006b\u0065y\u0020\u0074\u0079p\u0065:\u0020\u0025\u0054",_dba );};_abb ,_fbc :=_c .Marshal (make ([]byte ,_dba .Size ()));if _fbc !=nil {return _fbc ;
};_bfd .Contents =_ca .MakeHexString (string (_abb ));return nil ;};

123
model/sigutil/sigutil.go
View File

@ -9,62 +9,29 @@
// 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 sigutil ;import (_gg "bytes";_af "crypto";_ab "crypto/x509";_ga "encoding/asn1";_gd "encoding/pem";_e "errors";_f "fmt";_fe "github.com/unidoc/timestamp";_c "github.com/unidoc/unipdf/v3/common";_b "golang.org/x/crypto/ocsp";_a "io";_da "io/ioutil";_d "net/http";_ggb "time";);
package sigutil ;import (_c "bytes";_a "crypto";_ac "crypto/x509";_bc "encoding/asn1";_cf "encoding/pem";_gb "errors";_bf "fmt";_ae "github.com/unidoc/timestamp";_d "github.com/unidoc/unipdf/v3/common";_de "golang.org/x/crypto/ocsp";_e "io";_ad "io/ioutil";
_f "net/http";_b "time";);
// IsCA returns true if the provided certificate appears to be a CA certificate.
func (_bg *CertClient )IsCA (cert *_ac .Certificate )bool {return cert .IsCA &&_c .Equal (cert .RawIssuer ,cert .RawSubject );};
// Get retrieves the certificate at the specified URL.
func (_dd *CertClient )Get (url string )(*_ac .Certificate ,error ){if _dd .HTTPClient ==nil {_dd .HTTPClient =_ba ();};_ga ,_ab :=_dd .HTTPClient .Get (url );if _ab !=nil {return nil ,_ab ;};defer _ga .Body .Close ();_eb ,_ab :=_ad .ReadAll (_ga .Body );
if _ab !=nil {return nil ,_ab ;};if _ea ,_ :=_cf .Decode (_eb );_ea !=nil {_eb =_ea .Bytes ;};_ff ,_ab :=_ac .ParseCertificate (_eb );if _ab !=nil {return nil ,_ab ;};return _ff ,nil ;};
// NewCertClient returns a new certificate client.
func NewCertClient ()*CertClient {return &CertClient {HTTPClient :_ee ()}};
func NewCertClient ()*CertClient {return &CertClient {HTTPClient :_ba ()}};
// GetEncodedToken executes the timestamp request and returns the DER encoded
// timestamp token bytes.
func (_ba *TimestampClient )GetEncodedToken (serverURL string ,req *_fe .Request )([]byte ,error ){if serverURL ==""{return nil ,_f .Errorf ("\u006d\u0075\u0073\u0074\u0020\u0070r\u006f\u0076\u0069\u0064\u0065\u0020\u0074\u0069\u006d\u0065\u0073\u0074\u0061m\u0070\u0020\u0073\u0065\u0072\u0076\u0065r\u0020\u0055\u0052\u004c");};if req ==nil {return nil ,_f .Errorf ("\u0074\u0069\u006de\u0073\u0074\u0061\u006dp\u0020\u0072\u0065\u0071\u0075\u0065\u0073t\u0020\u0063\u0061\u006e\u006e\u006f\u0074\u0020\u0062\u0065\u0020\u006e\u0069\u006c");};_de ,_ec :=req .Marshal ();if _ec !=nil {return nil ,_ec ;};_ca :=_ba .HTTPClient ;if _ca ==nil {_ca =_ee ();};_ecd ,_ec :=_ca .Post (serverURL ,"a\u0070\u0070\u006c\u0069\u0063\u0061t\u0069\u006f\u006e\u002f\u0074\u0069\u006d\u0065\u0073t\u0061\u006d\u0070-\u0071u\u0065\u0072\u0079",_gg .NewBuffer (_de ));if _ec !=nil {return nil ,_ec ;};defer _ecd .Body .Close ();_ffc ,_ec :=_da .ReadAll (_ecd .Body );if _ec !=nil {return nil ,_ec ;};if _ecd .StatusCode !=_d .StatusOK {return nil ,_f .Errorf ("\u0075\u006e\u0065x\u0070\u0065\u0063\u0074e\u0064\u0020\u0048\u0054\u0054\u0050\u0020s\u0074\u0061\u0074\u0075\u0073\u0020\u0063\u006f\u0064\u0065\u003a\u0020\u0025\u0064",_ecd .StatusCode );};var _dbb struct{Version _ga .RawValue ;Content _ga .RawValue ;};if _ ,_ec =_ga .Unmarshal (_ffc ,&_dbb );_ec !=nil {return nil ,_ec ;};return _dbb .Content .FullBytes ,nil ;};
// NewCRLClient returns a new CRL client.
func NewCRLClient ()*CRLClient {return &CRLClient {HTTPClient :_ba ()}};
// MakeRequest makes a OCSP request to the specified server and returns
// the parsed and raw responses. If a server URL is not provided, it is
// extracted from the certificate.
func (_dfe *OCSPClient )MakeRequest (serverURL string ,cert ,issuer *_ab .Certificate )(*_b .Response ,[]byte ,error ){if _dfe .HTTPClient ==nil {_dfe .HTTPClient =_ee ();};if serverURL ==""{if len (cert .OCSPServer )==0{return nil ,nil ,_e .New ("\u0063e\u0072\u0074i\u0066\u0069\u0063a\u0074\u0065\u0020\u0064\u006f\u0065\u0073 \u006e\u006f\u0074\u0020\u0073\u0070e\u0063\u0069\u0066\u0079\u0020\u0061\u006e\u0079\u0020\u004f\u0043S\u0050\u0020\u0073\u0065\u0072\u0076\u0065\u0072\u0073");};serverURL =cert .OCSPServer [0];};_dff ,_dd :=_b .CreateRequest (cert ,issuer ,&_b .RequestOptions {Hash :_dfe .Hash });if _dd !=nil {return nil ,nil ,_dd ;};_cf ,_dd :=_dfe .HTTPClient .Post (serverURL ,"\u0061p\u0070\u006c\u0069\u0063\u0061\u0074\u0069\u006f\u006e\u002f\u006fc\u0073\u0070\u002d\u0072\u0065\u0071\u0075\u0065\u0073\u0074",_gg .NewReader (_dff ));if _dd !=nil {return nil ,nil ,_dd ;};defer _cf .Body .Close ();_gdd ,_dd :=_da .ReadAll (_cf .Body );if _dd !=nil {return nil ,nil ,_dd ;};if _gde ,_ :=_gd .Decode (_gdd );_gde !=nil {_gdd =_gde .Bytes ;};_cfe ,_dd :=_b .ParseResponseForCert (_gdd ,cert ,issuer );if _dd !=nil {return nil ,nil ,_dd ;};return _cfe ,_gdd ,nil ;};
// NewTimestampClient returns a new timestamp client.
func NewTimestampClient ()*TimestampClient {return &TimestampClient {HTTPClient :_ee ()}};
// TimestampClient represents a RFC 3161 timestamp client.
// It is used to obtain signed tokens from timestamp authority servers.
type TimestampClient struct{
// HTTPClient is the HTTP client used to make timestamp requests.
// By default, an HTTP client with a 5 second timeout per request is used.
HTTPClient *_d .Client ;};
// OCSPClient represents a OCSP (Online Certificate Status Protocol) client.
// It is used to request revocation data from OCSP servers.
type OCSPClient struct{
// HTTPClient is the HTTP client used to make OCSP requests.
// By default, an HTTP client with a 5 second timeout per request is used.
HTTPClient *_d .Client ;
// Hash is the hash function used when constructing the OCSP
// requests. If zero, SHA-1 will be used.
Hash _af .Hash ;};func _ee ()*_d .Client {return &_d .Client {Timeout :5*_ggb .Second }};
// NewTimestampRequest returns a new timestamp request based
// on the specified options.
func NewTimestampRequest (body _a .Reader ,opts *_fe .RequestOptions )(*_fe .Request ,error ){if opts ==nil {opts =&_fe .RequestOptions {};};if opts .Hash ==0{opts .Hash =_af .SHA256 ;};if !opts .Hash .Available (){return nil ,_ab .ErrUnsupportedAlgorithm ;};_gdc :=opts .Hash .New ();if _ ,_be :=_a .Copy (_gdc ,body );_be !=nil {return nil ,_be ;};return &_fe .Request {HashAlgorithm :opts .Hash ,HashedMessage :_gdc .Sum (nil ),Certificates :opts .Certificates ,TSAPolicyOID :opts .TSAPolicyOID ,Nonce :opts .Nonce },nil ;};
// GetIssuer retrieves the issuer of the provided certificate.
func (_df *CertClient )GetIssuer (cert *_ab .Certificate )(*_ab .Certificate ,error ){for _ ,_afc :=range cert .IssuingCertificateURL {_fg ,_aa :=_df .Get (_afc );if _aa !=nil {_c .Log .Debug ("\u0057\u0041\u0052\u004e\u003a\u0020\u0063\u006f\u0075\u006c\u0064\u0020\u006e\u006f\u0074 \u0064\u006f\u0077\u006e\u006c\u006f\u0061\u0064\u0020\u0069\u0073\u0073\u0075e\u0072\u0020\u0066\u006f\u0072\u0020\u0063\u0065\u0072\u0074\u0069\u0066ic\u0061\u0074\u0065\u0020\u0025\u0076\u003a\u0020\u0025\u0076",cert .Subject .CommonName ,_aa );continue ;};return _fg ,nil ;};return nil ,_f .Errorf ("\u0069\u0073\u0073\u0075e\u0072\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063a\u0074e\u0020\u006e\u006f\u0074\u0020\u0066\u006fu\u006e\u0064");};
// Get retrieves the certificate at the specified URL.
func (_bg *CertClient )Get (url string )(*_ab .Certificate ,error ){if _bg .HTTPClient ==nil {_bg .HTTPClient =_ee ();};_cc ,_ef :=_bg .HTTPClient .Get (url );if _ef !=nil {return nil ,_ef ;};defer _cc .Body .Close ();_ff ,_ef :=_da .ReadAll (_cc .Body );if _ef !=nil {return nil ,_ef ;};if _fb ,_ :=_gd .Decode (_ff );_fb !=nil {_ff =_fb .Bytes ;};_dg ,_ef :=_ab .ParseCertificate (_ff );if _ef !=nil {return nil ,_ef ;};return _dg ,nil ;};
// MakeRequest makes a CRL request to the specified server and returns the
// response. If a server URL is not provided, it is extracted from the certificate.
func (_ad *CRLClient )MakeRequest (serverURL string ,cert *_ab .Certificate )([]byte ,error ){if _ad .HTTPClient ==nil {_ad .HTTPClient =_ee ();};if serverURL ==""{if len (cert .CRLDistributionPoints )==0{return nil ,_e .New ("\u0063e\u0072\u0074i\u0066\u0069\u0063\u0061t\u0065\u0020\u0064o\u0065\u0073\u0020\u006e\u006f\u0074\u0020\u0073\u0070ec\u0069\u0066\u0079 \u0061\u006ey\u0020\u0043\u0052\u004c\u0020\u0073e\u0072\u0076e\u0072\u0073");};serverURL =cert .CRLDistributionPoints [0];};_cb ,_bgb :=_ad .HTTPClient .Get (serverURL );if _bgb !=nil {return nil ,_bgb ;};defer _cb .Body .Close ();_db ,_bgb :=_da .ReadAll (_cb .Body );if _bgb !=nil {return nil ,_bgb ;};if _dfd ,_ :=_gd .Decode (_db );_dfd !=nil {_db =_dfd .Bytes ;};return _db ,nil ;};
// NewCRLClient returns a new CRL client.
func NewCRLClient ()*CRLClient {return &CRLClient {HTTPClient :_ee ()}};
// IsCA returns true if the provided certificate appears to be a CA certificate.
func (_ac *CertClient )IsCA (cert *_ab .Certificate )bool {return cert .IsCA &&_gg .Equal (cert .RawIssuer ,cert .RawSubject );};
func (_da *OCSPClient )MakeRequest (serverURL string ,cert ,issuer *_ac .Certificate )(*_de .Response ,[]byte ,error ){if _da .HTTPClient ==nil {_da .HTTPClient =_ba ();};if serverURL ==""{if len (cert .OCSPServer )==0{return nil ,nil ,_gb .New ("\u0063e\u0072\u0074i\u0066\u0069\u0063a\u0074\u0065\u0020\u0064\u006f\u0065\u0073 \u006e\u006f\u0074\u0020\u0073\u0070e\u0063\u0069\u0066\u0079\u0020\u0061\u006e\u0079\u0020\u004f\u0043S\u0050\u0020\u0073\u0065\u0072\u0076\u0065\u0072\u0073");
};serverURL =cert .OCSPServer [0];};_bd ,_bcc :=_de .CreateRequest (cert ,issuer ,&_de .RequestOptions {Hash :_da .Hash });if _bcc !=nil {return nil ,nil ,_bcc ;};_ag ,_bcc :=_da .HTTPClient .Post (serverURL ,"\u0061p\u0070\u006c\u0069\u0063\u0061\u0074\u0069\u006f\u006e\u002f\u006fc\u0073\u0070\u002d\u0072\u0065\u0071\u0075\u0065\u0073\u0074",_c .NewReader (_bd ));
if _bcc !=nil {return nil ,nil ,_bcc ;};defer _ag .Body .Close ();_fc ,_bcc :=_ad .ReadAll (_ag .Body );if _bcc !=nil {return nil ,nil ,_bcc ;};if _abc ,_ :=_cf .Decode (_fc );_abc !=nil {_fc =_abc .Bytes ;};_deb ,_bcc :=_de .ParseResponseForCert (_fc ,cert ,issuer );
if _bcc !=nil {return nil ,nil ,_bcc ;};return _deb ,_fc ,nil ;};
// CertClient represents a X.509 certificate client. Its primary purpose
// is to download certificates.
@ -72,10 +39,7 @@ type CertClient struct{
// HTTPClient is the HTTP client used to make certificate requests.
// By default, an HTTP client with a 5 second timeout per request is used.
HTTPClient *_d .Client ;};
// NewOCSPClient returns a new OCSP client.
func NewOCSPClient ()*OCSPClient {return &OCSPClient {HTTPClient :_ee (),Hash :_af .SHA1 }};
HTTPClient *_f .Client ;};
// CRLClient represents a CRL (Certificate revocation list) client.
// It is used to request revocation data from CRL servers.
@ -83,4 +47,55 @@ type CRLClient struct{
// HTTPClient is the HTTP client used to make CRL requests.
// By default, an HTTP client with a 5 second timeout per request is used.
HTTPClient *_d .Client ;};
HTTPClient *_f .Client ;};
// OCSPClient represents a OCSP (Online Certificate Status Protocol) client.
// It is used to request revocation data from OCSP servers.
type OCSPClient struct{
// HTTPClient is the HTTP client used to make OCSP requests.
// By default, an HTTP client with a 5 second timeout per request is used.
HTTPClient *_f .Client ;
// Hash is the hash function used when constructing the OCSP
// requests. If zero, SHA-1 will be used.
Hash _a .Hash ;};
// NewTimestampRequest returns a new timestamp request based
// on the specified options.
func NewTimestampRequest (body _e .Reader ,opts *_ae .RequestOptions )(*_ae .Request ,error ){if opts ==nil {opts =&_ae .RequestOptions {};};if opts .Hash ==0{opts .Hash =_a .SHA256 ;};if !opts .Hash .Available (){return nil ,_ac .ErrUnsupportedAlgorithm ;
};_ffb :=opts .Hash .New ();if _ ,_aac :=_e .Copy (_ffb ,body );_aac !=nil {return nil ,_aac ;};return &_ae .Request {HashAlgorithm :opts .Hash ,HashedMessage :_ffb .Sum (nil ),Certificates :opts .Certificates ,TSAPolicyOID :opts .TSAPolicyOID ,Nonce :opts .Nonce },nil ;
};
// NewTimestampClient returns a new timestamp client.
func NewTimestampClient ()*TimestampClient {return &TimestampClient {HTTPClient :_ba ()}};
// GetEncodedToken executes the timestamp request and returns the DER encoded
// timestamp token bytes.
func (_gg *TimestampClient )GetEncodedToken (serverURL string ,req *_ae .Request )([]byte ,error ){if serverURL ==""{return nil ,_bf .Errorf ("\u006d\u0075\u0073\u0074\u0020\u0070r\u006f\u0076\u0069\u0064\u0065\u0020\u0074\u0069\u006d\u0065\u0073\u0074\u0061m\u0070\u0020\u0073\u0065\u0072\u0076\u0065r\u0020\u0055\u0052\u004c");
};if req ==nil {return nil ,_bf .Errorf ("\u0074\u0069\u006de\u0073\u0074\u0061\u006dp\u0020\u0072\u0065\u0071\u0075\u0065\u0073t\u0020\u0063\u0061\u006e\u006e\u006f\u0074\u0020\u0062\u0065\u0020\u006e\u0069\u006c");};_aeca ,_ggf :=req .Marshal ();if _ggf !=nil {return nil ,_ggf ;
};_gad :=_gg .HTTPClient ;if _gad ==nil {_gad =_ba ();};_fcg ,_ggf :=_gad .Post (serverURL ,"a\u0070\u0070\u006c\u0069\u0063\u0061t\u0069\u006f\u006e\u002f\u0074\u0069\u006d\u0065\u0073t\u0061\u006d\u0070-\u0071u\u0065\u0072\u0079",_c .NewBuffer (_aeca ));
if _ggf !=nil {return nil ,_ggf ;};defer _fcg .Body .Close ();_bed ,_ggf :=_ad .ReadAll (_fcg .Body );if _ggf !=nil {return nil ,_ggf ;};if _fcg .StatusCode !=_f .StatusOK {return nil ,_bf .Errorf ("\u0075\u006e\u0065x\u0070\u0065\u0063\u0074e\u0064\u0020\u0048\u0054\u0054\u0050\u0020s\u0074\u0061\u0074\u0075\u0073\u0020\u0063\u006f\u0064\u0065\u003a\u0020\u0025\u0064",_fcg .StatusCode );
};var _eg struct{Version _bc .RawValue ;Content _bc .RawValue ;};if _ ,_ggf =_bc .Unmarshal (_bed ,&_eg );_ggf !=nil {return nil ,_ggf ;};return _eg .Content .FullBytes ,nil ;};
// NewOCSPClient returns a new OCSP client.
func NewOCSPClient ()*OCSPClient {return &OCSPClient {HTTPClient :_ba (),Hash :_a .SHA1 }};
// MakeRequest makes a CRL request to the specified server and returns the
// response. If a server URL is not provided, it is extracted from the certificate.
func (_cb *CRLClient )MakeRequest (serverURL string ,cert *_ac .Certificate )([]byte ,error ){if _cb .HTTPClient ==nil {_cb .HTTPClient =_ba ();};if serverURL ==""{if len (cert .CRLDistributionPoints )==0{return nil ,_gb .New ("\u0063e\u0072\u0074i\u0066\u0069\u0063\u0061t\u0065\u0020\u0064o\u0065\u0073\u0020\u006e\u006f\u0074\u0020\u0073\u0070ec\u0069\u0066\u0079 \u0061\u006ey\u0020\u0043\u0052\u004c\u0020\u0073e\u0072\u0076e\u0072\u0073");
};serverURL =cert .CRLDistributionPoints [0];};_ge ,_cfg :=_cb .HTTPClient .Get (serverURL );if _cfg !=nil {return nil ,_cfg ;};defer _ge .Body .Close ();_acf ,_cfg :=_ad .ReadAll (_ge .Body );if _cfg !=nil {return nil ,_cfg ;};if _ebf ,_ :=_cf .Decode (_acf );
_ebf !=nil {_acf =_ebf .Bytes ;};return _acf ,nil ;};
// GetIssuer retrieves the issuer of the provided certificate.
func (_bca *CertClient )GetIssuer (cert *_ac .Certificate )(*_ac .Certificate ,error ){for _ ,_ffa :=range cert .IssuingCertificateURL {_aec ,_ee :=_bca .Get (_ffa );if _ee !=nil {_d .Log .Debug ("\u0057\u0041\u0052\u004e\u003a\u0020\u0063\u006f\u0075\u006c\u0064\u0020\u006e\u006f\u0074 \u0064\u006f\u0077\u006e\u006c\u006f\u0061\u0064\u0020\u0069\u0073\u0073\u0075e\u0072\u0020\u0066\u006f\u0072\u0020\u0063\u0065\u0072\u0074\u0069\u0066ic\u0061\u0074\u0065\u0020\u0025\u0076\u003a\u0020\u0025\u0076",cert .Subject .CommonName ,_ee );
continue ;};return _aec ,nil ;};return nil ,_bf .Errorf ("\u0069\u0073\u0073\u0075e\u0072\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063a\u0074e\u0020\u006e\u006f\u0074\u0020\u0066\u006fu\u006e\u0064");};func _ba ()*_f .Client {return &_f .Client {Timeout :5*_b .Second }};
// TimestampClient represents a RFC 3161 timestamp client.
// It is used to obtain signed tokens from timestamp authority servers.
type TimestampClient struct{
// HTTPClient is the HTTP client used to make timestamp requests.
// By default, an HTTP client with a 5 second timeout per request is used.
HTTPClient *_f .Client ;};

10
pdfutil/pdfutil.go
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@ -9,7 +9,7 @@
// 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 pdfutil ;import (_de "github.com/unidoc/unipdf/v3/common";_g "github.com/unidoc/unipdf/v3/contentstream";_b "github.com/unidoc/unipdf/v3/contentstream/draw";_c "github.com/unidoc/unipdf/v3/core";_a "github.com/unidoc/unipdf/v3/model";);
package pdfutil ;import (_a "github.com/unidoc/unipdf/v3/common";_ff "github.com/unidoc/unipdf/v3/contentstream";_fg "github.com/unidoc/unipdf/v3/contentstream/draw";_c "github.com/unidoc/unipdf/v3/core";_f "github.com/unidoc/unipdf/v3/model";);
// NormalizePage performs the following operations on the passed in page:
// - Normalize the page rotation.
@ -26,4 +26,10 @@ package pdfutil ;import (_de "github.com/unidoc/unipdf/v3/common";_g "github.com
// PDF viewer.
// NOTE: This function does not normalize annotations, outlines other parts
// that are not part of the basic geometry and page content streams.
func NormalizePage (page *_a .PdfPage )error {_bf ,_e :=page .GetMediaBox ();if _e !=nil {return _e ;};_dee :=page .Rotate ;_ae :=_dee !=nil &&*_dee %360!=0&&*_dee %90==0;_bf .Normalize ();_ab ,_f ,_ff ,_cf :=_bf .Llx ,_bf .Lly ,_bf .Width (),_bf .Height ();_bc :=_ab !=0||_f !=0;if !_ae &&!_bc {return nil ;};_eg :=func (_deb ,_ca ,_be float64 )_b .BoundingBox {return _b .Path {Points :[]_b .Point {_b .NewPoint (0,0).Rotate (_be ),_b .NewPoint (_deb ,0).Rotate (_be ),_b .NewPoint (0,_ca ).Rotate (_be ),_b .NewPoint (_deb ,_ca ).Rotate (_be )}}.GetBoundingBox ();};_ea :=_g .NewContentCreator ();var _aa float64 ;if _ae {_aa =-float64 (*page .Rotate );_ge :=_eg (_ff ,_cf ,_aa );_ea .Translate ((_ge .Width -_ff )/2+_ff /2,(_ge .Height -_cf )/2+_cf /2);_ea .RotateDeg (_aa );_ea .Translate (-_ff /2,-_cf /2);_ff ,_cf =_ge .Width ,_ge .Height ;};if _bc {_ea .Translate (-_ab ,-_f );};_ga :=_ea .Operations ();_ac ,_e :=_c .MakeStream (_ga .Bytes (),_c .NewFlateEncoder ());if _e !=nil {return _e ;};_cd :=_c .MakeArray (_ac );_cd .Append (page .GetContentStreamObjs ()...);*_bf =_a .PdfRectangle {Urx :_ff ,Ury :_cf };if _ffd :=page .CropBox ;_ffd !=nil {_ffd .Normalize ();_df ,_eb ,_bca ,_bfe :=_ffd .Llx -_ab ,_ffd .Lly -_f ,_ffd .Width (),_ffd .Height ();if _ae {_ffa :=_eg (_bca ,_bfe ,_aa );_bca ,_bfe =_ffa .Width ,_ffa .Height ;};*_ffd =_a .PdfRectangle {Llx :_df ,Lly :_eb ,Urx :_df +_bca ,Ury :_eb +_bfe };};_de .Log .Debug ("\u0052\u006f\u0074\u0061\u0074\u0065\u003d\u0025\u0066\u00b0\u0020\u004f\u0070\u0073\u003d%\u0071 \u004d\u0065\u0064\u0069\u0061\u0042\u006f\u0078\u003d\u0025\u002e\u0032\u0066",_aa ,_ga ,_bf );page .Contents =_cd ;page .Rotate =nil ;return nil ;};
func NormalizePage (page *_f .PdfPage )error {_e ,_ee :=page .GetMediaBox ();if _ee !=nil {return _ee ;};_cc :=page .Rotate ;_b :=_cc !=nil &&*_cc %360!=0&&*_cc %90==0;_e .Normalize ();_ccd ,_ea ,_d ,_ge :=_e .Llx ,_e .Lly ,_e .Width (),_e .Height ();_ec :=_ccd !=0||_ea !=0;
if !_b &&!_ec {return nil ;};_cb :=func (_gf ,_ed ,_dc float64 )_fg .BoundingBox {return _fg .Path {Points :[]_fg .Point {_fg .NewPoint (0,0).Rotate (_dc ),_fg .NewPoint (_gf ,0).Rotate (_dc ),_fg .NewPoint (0,_ed ).Rotate (_dc ),_fg .NewPoint (_gf ,_ed ).Rotate (_dc )}}.GetBoundingBox ();
};_be :=_ff .NewContentCreator ();var _eb float64 ;if _b {_eb =-float64 (*page .Rotate );_ac :=_cb (_d ,_ge ,_eb );_be .Translate ((_ac .Width -_d )/2+_d /2,(_ac .Height -_ge )/2+_ge /2);_be .RotateDeg (_eb );_be .Translate (-_d /2,-_ge /2);_d ,_ge =_ac .Width ,_ac .Height ;
};if _ec {_be .Translate (-_ccd ,-_ea );};_gg :=_be .Operations ();_df ,_ee :=_c .MakeStream (_gg .Bytes (),_c .NewFlateEncoder ());if _ee !=nil {return _ee ;};_aa :=_c .MakeArray (_df );_aa .Append (page .GetContentStreamObjs ()...);*_e =_f .PdfRectangle {Urx :_d ,Ury :_ge };
if _cd :=page .CropBox ;_cd !=nil {_cd .Normalize ();_dd ,_eg ,_fd ,_ddb :=_cd .Llx -_ccd ,_cd .Lly -_ea ,_cd .Width (),_cd .Height ();if _b {_ag :=_cb (_fd ,_ddb ,_eb );_fd ,_ddb =_ag .Width ,_ag .Height ;};*_cd =_f .PdfRectangle {Llx :_dd ,Lly :_eg ,Urx :_dd +_fd ,Ury :_eg +_ddb };
};_a .Log .Debug ("\u0052\u006f\u0074\u0061\u0074\u0065\u003d\u0025\u0066\u00b0\u0020\u004f\u0070\u0073\u003d%\u0071 \u004d\u0065\u0064\u0069\u0061\u0042\u006f\u0078\u003d\u0025\u002e\u0032\u0066",_eb ,_gg ,_e );page .Contents =_aa ;page .Rotate =nil ;
return nil ;};

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ps/ps.go
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render/internal/context/context.go
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render/internal/context/imagerender/imagerender.go
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render/render.go
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