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prepare release
This commit is contained in:
UniDoc Build
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commit
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132
common/common.go
132
common/common.go
@ -10,96 +10,96 @@
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// terms that can be accessed at https://unidoc.io/eula/
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// Package common contains common properties used by the subpackages.
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package common ;import (_c "fmt";_bc "io";_fe "os";_a "path/filepath";_f "runtime";_bg "time";);
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package common ;import (_f "fmt";_af "io";_ab "os";_a "path/filepath";_d "runtime";_fc "time";);
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// Notice logs notice message.
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func (_dd ConsoleLogger )Notice (format string ,args ...interface{}){if _dd .LogLevel >=LogLevelNotice {_gfg :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_dd .output (_fe .Stdout ,_gfg ,format ,args ...);};};
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// Error logs error message.
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func (_ae ConsoleLogger )Error (format string ,args ...interface{}){if _ae .LogLevel >=LogLevelError {_gf :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_ae .output (_fe .Stdout ,_gf ,format ,args ...);};};
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// NewConsoleLogger creates new console logger.
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func NewConsoleLogger (logLevel LogLevel )*ConsoleLogger {return &ConsoleLogger {LogLevel :logLevel }};
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// UtcTimeFormat returns a formatted string describing a UTC timestamp.
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func UtcTimeFormat (t _bg .Time )string {return t .Format (_bb )+"\u0020\u0055\u0054\u0043"};
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// Trace logs trace message.
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func (_fb WriterLogger )Trace (format string ,args ...interface{}){if _fb .LogLevel >=LogLevelTrace {_gdb :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_fb .logToWriter (_fb .Output ,_gdb ,format ,args ...);};};
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// SetLogger sets 'logger' to be used by the unidoc unipdf library.
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func SetLogger (logger Logger ){Log =logger };const _beg =25;
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// Debug logs debug message.
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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 ...);};};
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// Notice does nothing for dummy logger.
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func (DummyLogger )Notice (format string ,args ...interface{}){};
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// LogLevel is the verbosity level for logging.
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type LogLevel int ;
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// IsLogLevel returns true if log level is greater or equal than `level`.
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// Can be used to avoid resource intensive calls to loggers.
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func (_cbe ConsoleLogger )IsLogLevel (level LogLevel )bool {return _cbe .LogLevel >=level };
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// Error does nothing for dummy logger.
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func (DummyLogger )Error (format string ,args ...interface{}){};const _dbg =23;func (_gbf ConsoleLogger )output (_dba _bc .Writer ,_dde string ,_cb string ,_ff ...interface{}){_cga (_dba ,_dde ,_cb ,_ff ...);};
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// Debug logs debug message.
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func (_afa WriterLogger )Debug (format string ,args ...interface{}){if _afa .LogLevel >=LogLevelDebug {_bd :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_afa .logToWriter (_afa .Output ,_bd ,format ,args ...);};};func _cga (_bcd _bc .Writer ,_cgc string ,_bf string ,_agfc ...interface{}){_ ,_gdbf ,_ab ,_gc :=_f .Caller (3);if !_gc {_gdbf ="\u003f\u003f\u003f";_ab =0;}else {_gdbf =_a .Base (_gdbf );};_acd :=_c .Sprintf ("\u0025s\u0020\u0025\u0073\u003a\u0025\u0064 ",_cgc ,_gdbf ,_ab )+_bf +"\u000a";_c .Fprintf (_bcd ,_acd ,_agfc ...);};
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// NewWriterLogger creates new 'writer' logger.
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func NewWriterLogger (logLevel LogLevel ,writer _bc .Writer )*WriterLogger {_agf :=WriterLogger {Output :writer ,LogLevel :logLevel };return &_agf ;};const _aac =2021;
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// Debug logs debug message.
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func (_bcb ConsoleLogger )Debug (format string ,args ...interface{}){if _bcb .LogLevel >=LogLevelDebug {_ag :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_bcb .output (_fe .Stdout ,_ag ,format ,args ...);};};var ReleasedAt =_bg .Date (_aac ,_gbg ,_beg ,_dbg ,_gcf ,0,0,_bg .UTC );
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// Notice logs notice message.
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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 ...);};};
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// IsLogLevel returns true from dummy logger.
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func (DummyLogger )IsLogLevel (level LogLevel )bool {return true };
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// WriterLogger is the logger that writes data to the Output writer
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type WriterLogger struct{LogLevel LogLevel ;Output _bc .Writer ;};
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// Logger is the interface used for logging in the unipdf package.
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type Logger interface{Error (_feb string ,_g ...interface{});Warning (_bga string ,_d ...interface{});Notice (_e string ,_gd ...interface{});Info (_dc string ,_fc ...interface{});Debug (_ec string ,_gb ...interface{});Trace (_ca string ,_fec ...interface{});IsLogLevel (_db LogLevel )bool ;};const _gbg =1;
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// Info logs info message.
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func (_ac WriterLogger )Info (format string ,args ...interface{}){if _ac .LogLevel >=LogLevelInfo {_fd :="\u005bI\u004e\u0046\u004f\u005d\u0020";_ac .logToWriter (_ac .Output ,_fd ,format ,args ...);};};func (_cbe WriterLogger )logToWriter (_dcg _bc .Writer ,_aa string ,_gbe string ,_bcbc ...interface{}){_cga (_dcg ,_aa ,_gbe ,_bcbc );};const (LogLevelTrace LogLevel =5;LogLevelDebug LogLevel =4;LogLevelInfo LogLevel =3;LogLevelNotice LogLevel =2;LogLevelWarning LogLevel =1;LogLevelError LogLevel =0;);
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// Warning logs warning message.
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func (_ef ConsoleLogger )Warning (format string ,args ...interface{}){if _ef .LogLevel >=LogLevelWarning {_af :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_ef .output (_fe .Stdout ,_af ,format ,args ...);};};
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// Warning does nothing for dummy logger.
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func (DummyLogger )Warning (format string ,args ...interface{}){};var Log Logger =DummyLogger {};
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// ConsoleLogger is a logger that writes logs to the 'os.Stdout'
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type ConsoleLogger struct{LogLevel LogLevel ;};
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// IsLogLevel returns true if log level is greater or equal than `level`.
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// Can be used to avoid resource intensive calls to loggers.
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func (_fg ConsoleLogger )IsLogLevel (level LogLevel )bool {return _fg .LogLevel >=level };
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func (_dgc WriterLogger )IsLogLevel (level LogLevel )bool {return _dgc .LogLevel >=level };
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// Warning logs warning message.
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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 ...);};};
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// Warning logs warning message.
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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";
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// Debug logs debug message.
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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 ...);};};
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// Trace logs trace message.
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func (_ee ConsoleLogger )Trace (format string ,args ...interface{}){if _ee .LogLevel >=LogLevelTrace {_ed :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_ee .output (_fe .Stdout ,_ed ,format ,args ...);};};const Version ="\u0033\u002e\u0031\u0038\u002e\u0030";
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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;
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// SetLogger sets 'logger' to be used by the unidoc unipdf library.
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func SetLogger (logger Logger ){Log =logger };
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// Error logs error message.
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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 ...);};};
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// DummyLogger does nothing.
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type DummyLogger struct{};
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// Trace does nothing for dummy logger.
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func (DummyLogger )Trace (format string ,args ...interface{}){};
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// LogLevel is the verbosity level for logging.
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type LogLevel int ;const _ac =16;
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// IsLogLevel returns true if log level is greater or equal than `level`.
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// Can be used to avoid resource intensive calls to loggers.
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func (_cg WriterLogger )IsLogLevel (level LogLevel )bool {return _cg .LogLevel >=level };
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// Error does nothing for dummy logger.
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func (DummyLogger )Error (format string ,args ...interface{}){};
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// Error logs error message.
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func (_eca WriterLogger )Error (format string ,args ...interface{}){if _eca .LogLevel >=LogLevelError {_ddc :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_eca .logToWriter (_eca .Output ,_ddc ,format ,args ...);};};
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// WriterLogger is the logger that writes data to the Output writer
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type WriterLogger struct{LogLevel LogLevel ;Output _af .Writer ;};
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// Warning logs warning message.
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func (_gfa WriterLogger )Warning (format string ,args ...interface{}){if _gfa .LogLevel >=LogLevelWarning {_fa :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_gfa .logToWriter (_gfa .Output ,_fa ,format ,args ...);};};
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// Warning does nothing for dummy logger.
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func (DummyLogger )Warning (format string ,args ...interface{}){};
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// UtcTimeFormat returns a formatted string describing a UTC timestamp.
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func UtcTimeFormat (t _fc .Time )string {return t .Format (_bde )+"\u0020\u0055\u0054\u0043"};
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// Debug does nothing for dummy logger.
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func (DummyLogger )Debug (format string ,args ...interface{}){};const _bb ="\u0032\u0020\u004aan\u0075\u0061\u0072\u0079\u0020\u0032\u0030\u0030\u0036\u0020\u0061\u0074\u0020\u0031\u0035\u003a\u0030\u0034";const _gcf =30;
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func (DummyLogger )Debug (format string ,args ...interface{}){};const _ffa =2021;
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// Info logs info message.
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func (_dbd ConsoleLogger )Info (format string ,args ...interface{}){if _dbd .LogLevel >=LogLevelInfo {_feg :="\u005bI\u004e\u0046\u004f\u005d\u0020";_dbd .output (_fe .Stdout ,_feg ,format ,args ...);};};
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// NewWriterLogger creates new 'writer' logger.
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func NewWriterLogger (logLevel LogLevel ,writer _af .Writer )*WriterLogger {_dfc :=WriterLogger {Output :writer ,LogLevel :logLevel };return &_dfc ;};
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// Notice logs notice message.
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func (_be WriterLogger )Notice (format string ,args ...interface{}){if _be .LogLevel >=LogLevelNotice {_aed :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_be .logToWriter (_be .Output ,_aed ,format ,args ...);};};
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// Error logs error message.
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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 ...);};};
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// Info does nothing for dummy logger.
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func (DummyLogger )Info (format string ,args ...interface{}){};
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func (DummyLogger )Info (format string ,args ...interface{}){};
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// Logger is the interface used for logging in the unipdf package.
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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 );
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// Trace logs trace message.
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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 );};
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// ConsoleLogger is a logger that writes logs to the 'os.Stdout'
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type ConsoleLogger struct{LogLevel LogLevel ;};
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// Notice logs notice message.
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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";
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// Info logs info message.
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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 ...);};};
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// NewConsoleLogger creates new console logger.
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func NewConsoleLogger (logLevel LogLevel )*ConsoleLogger {return &ConsoleLogger {LogLevel :logLevel }};
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// Trace does nothing for dummy logger.
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func (DummyLogger )Trace (format string ,args ...interface{}){};var Log Logger =DummyLogger {};
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// Info logs info message.
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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 ...);};
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@ -10,24 +10,24 @@
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// terms that can be accessed at https://unidoc.io/eula/
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// Package license helps manage commercial licenses and check if they are valid for the version of unipdf used.
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package license ;import _ad "github.com/unidoc/unipdf/v3/internal/license";
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// LicenseKey represents a loaded license key.
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type LicenseKey =_ad .LicenseKey ;
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// SetLicenseKey sets and validates the license key.
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func SetLicenseKey (content string ,customerName string )error {return _ad .SetLicenseKey (content ,customerName );};const (LicenseTierUnlicensed =_ad .LicenseTierUnlicensed ;LicenseTierCommunity =_ad .LicenseTierCommunity ;LicenseTierIndividual =_ad .LicenseTierIndividual ;LicenseTierBusiness =_ad .LicenseTierBusiness ;);
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// GetLicenseKey returns the currently loaded license key.
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func GetLicenseKey ()*LicenseKey {return _ad .GetLicenseKey ()};
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// GetMeteredState checks the currently used metered document usage status,
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// documents used and credits available.
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func GetMeteredState ()(_ad .MeteredStatus ,error ){return _ad .GetMeteredState ()};
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// MakeUnlicensedKey returns a default key.
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func MakeUnlicensedKey ()*LicenseKey {return _ad .MakeUnlicensedKey ()};
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package license ;import _aa "github.com/unidoc/unipdf/v3/internal/license";
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// SetMeteredKey sets the metered API key required for SaaS operation.
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// Document usage is reported periodically for the product to function correctly.
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func SetMeteredKey (apiKey string )error {return _ad .SetMeteredKey (apiKey )};
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func SetMeteredKey (apiKey string )error {return _aa .SetMeteredKey (apiKey )};
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// GetMeteredState checks the currently used metered document usage status,
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// documents used and credits available.
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func GetMeteredState ()(_aa .MeteredStatus ,error ){return _aa .GetMeteredState ()};
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// LicenseKey represents a loaded license key.
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type LicenseKey =_aa .LicenseKey ;
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// GetLicenseKey returns the currently loaded license key.
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func GetLicenseKey ()*LicenseKey {return _aa .GetLicenseKey ()};
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// SetLicenseKey sets and validates the license key.
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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 ;);
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// MakeUnlicensedKey returns a default key.
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func MakeUnlicensedKey ()*LicenseKey {return _aa .MakeUnlicensedKey ()};
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File diff suppressed because one or more lines are too long
@ -14,204 +14,204 @@
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// page content streams and XObject forms and thus also in annotation appearance streams.
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//
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// Also defines utility functions for drawing common shapes such as rectangles, lines and circles (ovals).
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package draw ;import (_c "fmt";_df "github.com/unidoc/unipdf/v3/contentstream";_cb "github.com/unidoc/unipdf/v3/core";_ae "github.com/unidoc/unipdf/v3/internal/transform";_a "github.com/unidoc/unipdf/v3/model";_d "math";);
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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";);
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// Draw draws the polyline. A graphics state name can be specified for
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// setting the polyline properties (e.g. setting the opacity). Otherwise leave
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// empty (""). Returns the content stream as a byte array and the polyline
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// bounding box.
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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 ;};
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// AppendPoint adds the specified point to the path.
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func (_eba Path )AppendPoint (point Point )Path {_eba .Points =append (_eba .Points ,point );return _eba };
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// Circle represents a circle shape with fill and border properties that can be drawn to a PDF content stream.
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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 ;};
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// CubicBezierPath represents a collection of cubic Bezier curves.
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type CubicBezierPath struct{Curves []CubicBezierCurve ;};
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// AppendCurve appends the specified Bezier curve to the path.
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func (_bd CubicBezierPath )AppendCurve (curve CubicBezierCurve )CubicBezierPath {_bd .Curves =append (_bd .Curves ,curve );return _bd ;};
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// BoundingBox represents the smallest rectangular area that encapsulates an object.
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type BoundingBox struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;};
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// Offset shifts the path with the specified offsets.
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func (_de Path )Offset (offX ,offY float64 )Path {for _ga ,_cc :=range _de .Points {_de .Points [_ga ]=_cc .Add (offX ,offY );};return _de ;};
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// NewCubicBezierPath returns a new empty cubic Bezier path.
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func NewCubicBezierPath ()CubicBezierPath {_ed :=CubicBezierPath {};_ed .Curves =[]CubicBezierCurve {};return _ed ;};
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// GetBoundingBox returns the bounding box of the Bezier path.
|
||||
func (_be CubicBezierPath )GetBoundingBox ()Rectangle {_cbg :=Rectangle {};_da :=0.0;_bf :=0.0;_fe :=0.0;_aag :=0.0;for _ff ,_adc :=range _be .Curves {_fa :=_adc .GetBounds ();if _ff ==0{_da =_fa .Llx ;_bf =_fa .Urx ;_fe =_fa .Lly ;_aag =_fa .Ury ;continue ;};if _fa .Llx < _da {_da =_fa .Llx ;};if _fa .Urx > _bf {_bf =_fa .Urx ;};if _fa .Lly < _fe {_fe =_fa .Lly ;};if _fa .Ury > _aag {_aag =_fa .Ury ;};};_cbg .X =_da ;_cbg .Y =_fe ;_cbg .Width =_bf -_da ;_cbg .Height =_aag -_fe ;return _cbg ;};
|
||||
// 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 (_ea Point )Add (dx ,dy float64 )Point {_ea .X +=dx ;_ea .Y +=dy ;return _ea };
|
||||
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 (_dg CubicBezierCurve )GetBounds ()_a .PdfRectangle {_ad :=_dg .P0 .X ;_aa :=_dg .P0 .X ;_b :=_dg .P0 .Y ;_eg :=_dg .P0 .Y ;for _g :=0.0;_g <=1.0;_g +=0.001{Rx :=_dg .P0 .X *_d .Pow (1-_g ,3)+_dg .P1 .X *3*_g *_d .Pow (1-_g ,2)+_dg .P2 .X *3*_d .Pow (_g ,2)*(1-_g )+_dg .P3 .X *_d .Pow (_g ,3);Ry :=_dg .P0 .Y *_d .Pow (1-_g ,3)+_dg .P1 .Y *3*_g *_d .Pow (1-_g ,2)+_dg .P2 .Y *3*_d .Pow (_g ,2)*(1-_g )+_dg .P3 .Y *_d .Pow (_g ,3);if Rx < _ad {_ad =Rx ;};if Rx > _aa {_aa =Rx ;};if Ry < _b {_b =Ry ;};if Ry > _eg {_eg =Ry ;};};_ag :=_a .PdfRectangle {};_ag .Llx =_ad ;_ag .Lly =_b ;_ag .Urx =_aa ;_ag .Ury =_eg ;return _ag ;};
|
||||
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 ;};
|
||||
|
||||
// Add adds the specified vector to the current one and returns the result.
|
||||
func (_gcd Vector )Add (other Vector )Vector {_gcd .Dx +=other .Dx ;_gcd .Dy +=other .Dy ;return _gcd };
|
||||
|
||||
// ToPdfRectangle returns the bounding box as a PDF rectangle.
|
||||
func (_ca BoundingBox )ToPdfRectangle ()*_a .PdfRectangle {return &_a .PdfRectangle {Llx :_ca .X ,Lly :_ca .Y ,Urx :_ca .X +_ca .Width ,Ury :_ca .Y +_ca .Height };};
|
||||
// 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 (_afb Polygon )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){_edeb :=_df .NewContentCreator ();_edeb .Add_q ();_afb .FillEnabled =_afb .FillEnabled &&_afb .FillColor !=nil ;if _afb .FillEnabled {_edeb .Add_rg (_afb .FillColor .R (),_afb .FillColor .G (),_afb .FillColor .B ());};_afb .BorderEnabled =_afb .BorderEnabled &&_afb .BorderColor !=nil ;if _afb .BorderEnabled {_edeb .Add_RG (_afb .BorderColor .R (),_afb .BorderColor .G (),_afb .BorderColor .B ());_edeb .Add_w (_afb .BorderWidth );};if len (gsName )> 1{_edeb .Add_gs (_cb .PdfObjectName (gsName ));};_afe :=NewPath ();for _ ,_aeg :=range _afb .Points {for _gcc ,_gd :=range _aeg {_afe =_afe .AppendPoint (_gd );if _gcc ==0{_edeb .Add_m (_gd .X ,_gd .Y );}else {_edeb .Add_l (_gd .X ,_gd .Y );};};_edeb .Add_h ();};if _afb .FillEnabled &&_afb .BorderEnabled {_edeb .Add_B ();}else if _afb .FillEnabled {_edeb .Add_f ();}else if _afb .BorderEnabled {_edeb .Add_S ();};_edeb .Add_Q ();return _edeb .Bytes (),_afe .GetBoundingBox ().ToPdfRectangle (),nil ;};
|
||||
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 ;};
|
||||
|
||||
// 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 (_dfc BasicLine )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){_dbe :=_dfc .LineWidth ;_egf :=NewPath ();_egf =_egf .AppendPoint (NewPoint (_dfc .X1 ,_dfc .Y1 ));_egf =_egf .AppendPoint (NewPoint (_dfc .X2 ,_dfc .Y2 ));_aaf :=_df .NewContentCreator ();_fgd :=_egf .GetBoundingBox ();DrawPathWithCreator (_egf ,_aaf );if _dfc .LineStyle ==LineStyleDashed {_aaf .Add_d ([]int64 {1,1},0);};_aaf .Add_RG (_dfc .LineColor .R (),_dfc .LineColor .G (),_dfc .LineColor .B ()).Add_w (_dbe ).Add_S ().Add_Q ();return _aaf .Bytes (),_fgd .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 ;};
|
||||
|
||||
// NewPoint returns a new point with the coordinates x, y.
|
||||
func NewPoint (x ,y float64 )Point {return Point {X :x ,Y :y }};
|
||||
// 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 ;};
|
||||
|
||||
// GetBoundingBox returns the bounding box of the path.
|
||||
func (_ddg Path )GetBoundingBox ()BoundingBox {_cbgd :=BoundingBox {};_gca :=0.0;_bg :=0.0;_add :=0.0;_dbc :=0.0;for _gcad ,_adb :=range _ddg .Points {if _gcad ==0{_gca =_adb .X ;_bg =_adb .X ;_add =_adb .Y ;_dbc =_adb .Y ;continue ;};if _adb .X < _gca {_gca =_adb .X ;};if _adb .X > _bg {_bg =_adb .X ;};if _adb .Y < _add {_add =_adb .Y ;};if _adb .Y > _dbc {_dbc =_adb .Y ;};};_cbgd .X =_gca ;_cbgd .Y =_add ;_cbgd .Width =_bg -_gca ;_cbgd .Height =_dbc -_add ;return _cbgd ;};
|
||||
// FlipX flips the sign of the Dx component of the vector.
|
||||
func (_dce Vector )FlipX ()Vector {_dce .Dx =-_dce .Dx ;return _dce };
|
||||
|
||||
// GetPolarAngle returns the angle the magnitude of the vector forms with the
|
||||
// positive X-axis going counterclockwise.
|
||||
func (_cgc Vector )GetPolarAngle ()float64 {return _d .Atan2 (_cgc .Dy ,_cgc .Dx )};const (LineStyleSolid LineStyle =0;LineStyleDashed LineStyle =1;);
|
||||
// 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 };};
|
||||
|
||||
// Copy returns a clone of the path.
|
||||
func (_dd Path )Copy ()Path {_aga :=Path {};_aga .Points =append (_aga .Points ,_dd .Points ...);return _aga ;};
|
||||
|
||||
// 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 (_cff Rectangle )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){_bag :=NewPath ();_bag =_bag .AppendPoint (NewPoint (0,0));_bag =_bag .AppendPoint (NewPoint (0,_cff .Height ));_bag =_bag .AppendPoint (NewPoint (_cff .Width ,_cff .Height ));_bag =_bag .AppendPoint (NewPoint (_cff .Width ,0));_bag =_bag .AppendPoint (NewPoint (0,0));if _cff .X !=0||_cff .Y !=0{_bag =_bag .Offset (_cff .X ,_cff .Y );};_ge :=_df .NewContentCreator ();_ge .Add_q ();if _cff .FillEnabled {_ge .Add_rg (_cff .FillColor .R (),_cff .FillColor .G (),_cff .FillColor .B ());};if _cff .BorderEnabled {_ge .Add_RG (_cff .BorderColor .R (),_cff .BorderColor .G (),_cff .BorderColor .B ());_ge .Add_w (_cff .BorderWidth );};if len (gsName )> 1{_ge .Add_gs (_cb .PdfObjectName (gsName ));};DrawPathWithCreator (_bag ,_ge );_ge .Add_h ();if _cff .FillEnabled &&_cff .BorderEnabled {_ge .Add_B ();}else if _cff .FillEnabled {_ge .Add_f ();}else if _cff .BorderEnabled {_ge .Add_S ();};_ge .Add_Q ();return _ge .Bytes (),_bag .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 *_df .ContentCreator ){for _fea ,_gge :=range path .Points {if _fea ==0{creator .Add_m (_gge .X ,_gge .Y );}else {creator .Add_l (_gge .X ,_gge .Y );};};};
|
||||
|
||||
// Copy returns a clone of the Bezier path.
|
||||
func (_db CubicBezierPath )Copy ()CubicBezierPath {_aae :=CubicBezierPath {};_aae .Curves =append (_aae .Curves ,_db .Curves ...);return _aae ;};
|
||||
|
||||
// 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 (_gea Line )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){_ebf ,_cbd :=_gea .X1 ,_gea .X2 ;_ebb ,_dcf :=_gea .Y1 ,_gea .Y2 ;_gg :=_dcf -_ebb ;_effe :=_cbd -_ebf ;_agb :=_d .Atan2 (_gg ,_effe );L :=_d .Sqrt (_d .Pow (_effe ,2.0)+_d .Pow (_gg ,2.0));_ac :=_gea .LineWidth ;_egbg :=_d .Pi ;_ec :=1.0;if _effe < 0{_ec *=-1.0;};if _gg < 0{_ec *=-1.0;};VsX :=_ec *(-_ac /2*_d .Cos (_agb +_egbg /2));VsY :=_ec *(-_ac /2*_d .Sin (_agb +_egbg /2)+_ac *_d .Sin (_agb +_egbg /2));V1X :=VsX +_ac /2*_d .Cos (_agb +_egbg /2);V1Y :=VsY +_ac /2*_d .Sin (_agb +_egbg /2);V2X :=VsX +_ac /2*_d .Cos (_agb +_egbg /2)+L *_d .Cos (_agb );V2Y :=VsY +_ac /2*_d .Sin (_agb +_egbg /2)+L *_d .Sin (_agb );V3X :=VsX +_ac /2*_d .Cos (_agb +_egbg /2)+L *_d .Cos (_agb )+_ac *_d .Cos (_agb -_egbg /2);V3Y :=VsY +_ac /2*_d .Sin (_agb +_egbg /2)+L *_d .Sin (_agb )+_ac *_d .Sin (_agb -_egbg /2);V4X :=VsX +_ac /2*_d .Cos (_agb -_egbg /2);V4Y :=VsY +_ac /2*_d .Sin (_agb -_egbg /2);_abd :=NewPath ();_abd =_abd .AppendPoint (NewPoint (V1X ,V1Y ));_abd =_abd .AppendPoint (NewPoint (V2X ,V2Y ));_abd =_abd .AppendPoint (NewPoint (V3X ,V3Y ));_abd =_abd .AppendPoint (NewPoint (V4X ,V4Y ));_adbe :=_gea .LineEndingStyle1 ;_dbg :=_gea .LineEndingStyle2 ;_eba :=3*_ac ;_ddd :=3*_ac ;_fgc :=(_ddd -_ac )/2;if _dbg ==LineEndingStyleArrow {_fd :=_abd .GetPointNumber (2);_fac :=NewVectorPolar (_eba ,_agb +_egbg );_gcadf :=_fd .AddVector (_fac );_eab :=NewVectorPolar (_ddd /2,_agb +_egbg /2);_cbc :=NewVectorPolar (_eba ,_agb );_cd :=NewVectorPolar (_fgc ,_agb +_egbg /2);_ded :=_gcadf .AddVector (_cd );_cdf :=_cbc .Add (_eab .Flip ());_bgb :=_ded .AddVector (_cdf );_eda :=_eab .Scale (2).Flip ().Add (_cdf .Flip ());_bga :=_bgb .AddVector (_eda );_edc :=_gcadf .AddVector (NewVectorPolar (_ac ,_agb -_egbg /2));_cfd :=NewPath ();_cfd =_cfd .AppendPoint (_abd .GetPointNumber (1));_cfd =_cfd .AppendPoint (_gcadf );_cfd =_cfd .AppendPoint (_ded );_cfd =_cfd .AppendPoint (_bgb );_cfd =_cfd .AppendPoint (_bga );_cfd =_cfd .AppendPoint (_edc );_cfd =_cfd .AppendPoint (_abd .GetPointNumber (4));_abd =_cfd ;};if _adbe ==LineEndingStyleArrow {_gdb :=_abd .GetPointNumber (1);_deb :=_abd .GetPointNumber (_abd .Length ());_aca :=NewVectorPolar (_ac /2,_agb +_egbg +_egbg /2);_cbgg :=_gdb .AddVector (_aca );_fdc :=NewVectorPolar (_eba ,_agb ).Add (NewVectorPolar (_ddd /2,_agb +_egbg /2));_cea :=_cbgg .AddVector (_fdc );_cae :=NewVectorPolar (_fgc ,_agb -_egbg /2);_fef :=_cea .AddVector (_cae );_cdb :=NewVectorPolar (_eba ,_agb );_edag :=_deb .AddVector (_cdb );_gf :=NewVectorPolar (_fgc ,_agb +_egbg +_egbg /2);_ebcf :=_edag .AddVector (_gf );_bc :=_cbgg ;_aegd :=NewPath ();_aegd =_aegd .AppendPoint (_cbgg );_aegd =_aegd .AppendPoint (_cea );_aegd =_aegd .AppendPoint (_fef );for _ ,_gce :=range _abd .Points [1:len (_abd .Points )-1]{_aegd =_aegd .AppendPoint (_gce );};_aegd =_aegd .AppendPoint (_edag );_aegd =_aegd .AppendPoint (_ebcf );_aegd =_aegd .AppendPoint (_bc );_abd =_aegd ;};_eabf :=_df .NewContentCreator ();_eabf .Add_q ().Add_rg (_gea .LineColor .R (),_gea .LineColor .G (),_gea .LineColor .B ());if len (gsName )> 1{_eabf .Add_gs (_cb .PdfObjectName (gsName ));};_abd =_abd .Offset (_gea .X1 ,_gea .Y1 );_edce :=_abd .GetBoundingBox ();DrawPathWithCreator (_abd ,_eabf );if _gea .LineStyle ==LineStyleDashed {_eabf .Add_d ([]int64 {1,1},0).Add_S ().Add_f ().Add_Q ();}else {_eabf .Add_f ().Add_Q ();};return _eabf .Bytes (),_edce .ToPdfRectangle (),nil ;};
|
||||
|
||||
// NewVectorPolar returns a new vector calculated from the specified
|
||||
// magnitude and angle.
|
||||
func NewVectorPolar (length float64 ,theta float64 )Vector {_gfa :=Vector {};_gfa .Dx =length *_d .Cos (theta );_gfa .Dy =length *_d .Sin (theta );return _gfa ;};
|
||||
|
||||
// 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 (_effd Circle )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){_caa :=_effd .Width /2;_fg :=_effd .Height /2;if _effd .BorderEnabled {_caa -=_effd .BorderWidth /2;_fg -=_effd .BorderWidth /2;};_ddf :=0.551784;_cg :=_caa *_ddf ;_dgc :=_fg *_ddf ;_aac :=NewCubicBezierPath ();_aac =_aac .AppendCurve (NewCubicBezierCurve (-_caa ,0,-_caa ,_dgc ,-_cg ,_fg ,0,_fg ));_aac =_aac .AppendCurve (NewCubicBezierCurve (0,_fg ,_cg ,_fg ,_caa ,_dgc ,_caa ,0));_aac =_aac .AppendCurve (NewCubicBezierCurve (_caa ,0,_caa ,-_dgc ,_cg ,-_fg ,0,-_fg ));_aac =_aac .AppendCurve (NewCubicBezierCurve (0,-_fg ,-_cg ,-_fg ,-_caa ,-_dgc ,-_caa ,0));_aac =_aac .Offset (_caa ,_fg );if _effd .BorderEnabled {_aac =_aac .Offset (_effd .BorderWidth /2,_effd .BorderWidth /2);};if _effd .X !=0||_effd .Y !=0{_aac =_aac .Offset (_effd .X ,_effd .Y );};_ce :=_df .NewContentCreator ();_ce .Add_q ();if _effd .FillEnabled {_ce .Add_rg (_effd .FillColor .R (),_effd .FillColor .G (),_effd .FillColor .B ());};if _effd .BorderEnabled {_ce .Add_RG (_effd .BorderColor .R (),_effd .BorderColor .G (),_effd .BorderColor .B ());_ce .Add_w (_effd .BorderWidth );};if len (gsName )> 1{_ce .Add_gs (_cb .PdfObjectName (gsName ));};DrawBezierPathWithCreator (_aac ,_ce );_ce .Add_h ();if _effd .FillEnabled &&_effd .BorderEnabled {_ce .Add_B ();}else if _effd .FillEnabled {_ce .Add_f ();}else if _effd .BorderEnabled {_ce .Add_S ();};_ce .Add_Q ();_bff :=_aac .GetBoundingBox ();if _effd .BorderEnabled {_bff .Height +=_effd .BorderWidth ;_bff .Width +=_effd .BorderWidth ;_bff .X -=_effd .BorderWidth /2;_bff .Y -=_effd .BorderWidth /2;};return _ce .Bytes (),_bff .ToPdfRectangle (),nil ;};
|
||||
// LineEndingStyle defines the line ending style for lines.
|
||||
// The currently supported line ending styles are None, Arrow (ClosedArrow) and Butt.
|
||||
type LineEndingStyle int ;
|
||||
|
||||
// Point represents a two-dimensional point.
|
||||
type Point struct{X float64 ;Y 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 *_a .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineEndingStyle1 LineEndingStyle ;LineEndingStyle2 LineEndingStyle ;LineStyle LineStyle ;};
|
||||
|
||||
// AppendCurve appends the specified Bezier curve to the path.
|
||||
func (_ed CubicBezierPath )AppendCurve (curve CubicBezierCurve )CubicBezierPath {_ed .Curves =append (_ed .Curves ,curve );return _ed ;};
|
||||
|
||||
// Rotate returns a new Point at `p` rotated by `theta` degrees.
|
||||
func (_ef Point )Rotate (theta float64 )Point {_efd :=_ae .NewPoint (_ef .X ,_ef .Y ).Rotate (theta );return NewPoint (_efd .X ,_efd .Y );};func (_eff Point )String ()string {return _c .Sprintf ("(\u0025\u002e\u0031\u0066\u002c\u0025\u002e\u0031\u0066\u0029",_eff .X ,_eff .Y );};
|
||||
|
||||
// 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 (_cag PolyBezierCurve )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){if _cag .BorderColor ==nil {_cag .BorderColor =_a .NewPdfColorDeviceRGB (0,0,0);};_eb :=NewCubicBezierPath ();for _ ,_af :=range _cag .Curves {_eb =_eb .AppendCurve (_af );};_ebc :=_df .NewContentCreator ();_ebc .Add_q ();_cag .FillEnabled =_cag .FillEnabled &&_cag .FillColor !=nil ;if _cag .FillEnabled {_ebc .Add_rg (_cag .FillColor .R (),_cag .FillColor .G (),_cag .FillColor .B ());};_ebc .Add_RG (_cag .BorderColor .R (),_cag .BorderColor .G (),_cag .BorderColor .B ());_ebc .Add_w (_cag .BorderWidth );if len (gsName )> 1{_ebc .Add_gs (_cb .PdfObjectName (gsName ));};for _ ,_cf :=range _eb .Curves {_ebc .Add_m (_cf .P0 .X ,_cf .P0 .Y );_ebc .Add_c (_cf .P1 .X ,_cf .P1 .Y ,_cf .P2 .X ,_cf .P2 .Y ,_cf .P3 .X ,_cf .P3 .Y );};if _cag .FillEnabled {_ebc .Add_h ();_ebc .Add_B ();}else {_ebc .Add_S ();};_ebc .Add_Q ();return _ebc .Bytes (),_eb .GetBoundingBox ().ToPdfRectangle (),nil ;};
|
||||
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 ;};
|
||||
|
||||
// GetPointNumber returns the path point at the index specified by number.
|
||||
// The index is 1-based.
|
||||
func (_fed Path )GetPointNumber (number int )Point {if number < 1||number > len (_fed .Points ){return Point {};};return _fed .Points [number -1];};const (LineEndingStyleNone LineEndingStyle =0;LineEndingStyleArrow LineEndingStyle =1;LineEndingStyleButt LineEndingStyle =2;);
|
||||
// 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;);
|
||||
|
||||
// AppendPoint adds the specified point to the path.
|
||||
func (_adf Path )AppendPoint (point Point )Path {_adf .Points =append (_adf .Points ,point );return _adf };
|
||||
// FlipY flips the sign of the Dy component of the vector.
|
||||
func (_bfa Vector )FlipY ()Vector {_bfa .Dy =-_bfa .Dy ;return _bfa };
|
||||
|
||||
// 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 *_df .ContentCreator ){for _effg ,_dga :=range bpath .Curves {if _effg ==0{creator .Add_m (_dga .P0 .X ,_dga .P0 .Y );};creator .Add_c (_dga .P1 .X ,_dga .P1 .Y ,_dga .P2 .X ,_dga .P2 .Y ,_dga .P3 .X ,_dga .P3 .Y );};};
|
||||
// AddVector adds vector to a point.
|
||||
func (_fgb Point )AddVector (v Vector )Point {_fgb .X +=v .Dx ;_fgb .Y +=v .Dy ;return _fgb };
|
||||
|
||||
// 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 ;};
|
||||
|
||||
// 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 ;};
|
||||
|
||||
// Vector represents a two-dimensional vector.
|
||||
type Vector struct{Dx float64 ;Dy float64 ;};
|
||||
|
||||
// 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 ;};
|
||||
|
||||
// LineStyle refers to how the line will be created.
|
||||
type LineStyle int ;
|
||||
|
||||
// Flip changes the sign of the vector: -vector.
|
||||
func (_bfa Vector )Flip ()Vector {_egg :=_bfa .Magnitude ();_geg :=_bfa .GetPolarAngle ();_bfa .Dx =_egg *_d .Cos (_geg +_d .Pi );_bfa .Dy =_egg *_d .Sin (_geg +_d .Pi );return _bfa ;};
|
||||
// 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];};
|
||||
|
||||
// ToPdfRectangle returns the rectangle as a PDF rectangle.
|
||||
func (_aee Rectangle )ToPdfRectangle ()*_a .PdfRectangle {return &_a .PdfRectangle {Llx :_aee .X ,Lly :_aee .Y ,Urx :_aee .X +_aee .Width ,Ury :_aee .Y +_aee .Height };};
|
||||
// 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 ;};
|
||||
|
||||
// Offset shifts the Bezier path with the specified offsets.
|
||||
func (_abb CubicBezierPath )Offset (offX ,offY float64 )CubicBezierPath {for _ede ,_dc :=range _abb .Curves {_abb .Curves [_ede ]=_dc .AddOffsetXY (offX ,offY );};return _abb ;};
|
||||
|
||||
// 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 {_aff :=Vector {};_aff .Dx =b .X -a .X ;_aff .Dy =b .Y -a .Y ;return _aff ;};
|
||||
|
||||
// NewCubicBezierPath returns a new empty cubic Bezier path.
|
||||
func NewCubicBezierPath ()CubicBezierPath {_gb :=CubicBezierPath {};_gb .Curves =[]CubicBezierCurve {};return _gb ;};
|
||||
|
||||
// AddOffsetXY adds X,Y offset to all points on a curve.
|
||||
func (_e CubicBezierCurve )AddOffsetXY (offX ,offY float64 )CubicBezierCurve {_e .P0 .X +=offX ;_e .P1 .X +=offX ;_e .P2 .X +=offX ;_e .P3 .X +=offX ;_e .P0 .Y +=offY ;_e .P1 .Y +=offY ;_e .P2 .Y +=offY ;_e .P3 .Y +=offY ;return _e ;};
|
||||
|
||||
// Scale scales the vector by the specified factor.
|
||||
func (_ebg Vector )Scale (factor float64 )Vector {_gda :=_ebg .Magnitude ();_dba :=_ebg .GetPolarAngle ();_ebg .Dx =factor *_gda *_d .Cos (_dba );_ebg .Dy =factor *_gda *_d .Sin (_dba );return _ebg ;};
|
||||
func (_fd CubicBezierPath )Offset (offX ,offY float64 )CubicBezierPath {for _fb ,_bb :=range _fd .Curves {_fd .Curves [_fb ]=_bb .AddOffsetXY (offX ,offY );};return _fd ;};
|
||||
|
||||
// PolyBezierCurve represents a composite curve that is the result of
|
||||
// joining multiple cubic Bezier curves.
|
||||
type PolyBezierCurve struct{Curves []CubicBezierCurve ;BorderWidth float64 ;BorderColor *_a .PdfColorDeviceRGB ;FillEnabled bool ;FillColor *_a .PdfColorDeviceRGB ;};
|
||||
|
||||
// NewPath returns a new empty path.
|
||||
func NewPath ()Path {return Path {}};
|
||||
|
||||
// Polygon is a multi-point shape that can be drawn to a PDF content stream.
|
||||
type Polygon struct{Points [][]Point ;FillEnabled bool ;FillColor *_a .PdfColorDeviceRGB ;BorderEnabled bool ;BorderColor *_a .PdfColorDeviceRGB ;BorderWidth float64 ;};
|
||||
|
||||
// Path consists of straight line connections between each point defined in an array of points.
|
||||
type Path struct{Points []Point ;};
|
||||
type PolyBezierCurve struct{Curves []CubicBezierCurve ;BorderWidth float64 ;BorderColor *_eb .PdfColorDeviceRGB ;FillEnabled bool ;FillColor *_eb .PdfColorDeviceRGB ;};
|
||||
|
||||
// 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 ;};
|
||||
|
||||
// Vector represents a two-dimensional vector.
|
||||
type Vector struct{Dx float64 ;Dy float64 ;};
|
||||
// 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 };};
|
||||
|
||||
// AddVector adds vector to a point.
|
||||
func (_cba Point )AddVector (v Vector )Point {_cba .X +=v .Dx ;_cba .Y +=v .Dy ;return _cba };
|
||||
|
||||
// NewVector returns a new vector with the direction specified by dx and dy.
|
||||
func NewVector (dx ,dy float64 )Vector {_ega :=Vector {};_ega .Dx =dx ;_ega .Dy =dy ;return _ega };
|
||||
|
||||
// NewCubicBezierCurve returns a new cubic Bezier curve.
|
||||
func NewCubicBezierCurve (x0 ,y0 ,x1 ,y1 ,x2 ,y2 ,x3 ,y3 float64 )CubicBezierCurve {_ab :=CubicBezierCurve {};_ab .P0 =NewPoint (x0 ,y0 );_ab .P1 =NewPoint (x1 ,y1 );_ab .P2 =NewPoint (x2 ,y2 );_ab .P3 =NewPoint (x3 ,y3 );return _ab ;};
|
||||
|
||||
// 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 (_fdb Vector )FlipX ()Vector {_fdb .Dx =-_fdb .Dx ;return _fdb };
|
||||
|
||||
// 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 (_edd Polyline )Draw (gsName string )([]byte ,*_a .PdfRectangle ,error ){if _edd .LineColor ==nil {_edd .LineColor =_a .NewPdfColorDeviceRGB (0,0,0);};_ece :=NewPath ();for _ ,_ffc :=range _edd .Points {_ece =_ece .AppendPoint (_ffc );};_aacf :=_df .NewContentCreator ();_aacf .Add_q ();_aacf .Add_RG (_edd .LineColor .R (),_edd .LineColor .G (),_edd .LineColor .B ());_aacf .Add_w (_edd .LineWidth );if len (gsName )> 1{_aacf .Add_gs (_cb .PdfObjectName (gsName ));};DrawPathWithCreator (_ece ,_aacf );_aacf .Add_S ();_aacf .Add_Q ();return _aacf .Bytes (),_ece .GetBoundingBox ().ToPdfRectangle (),nil ;};
|
||||
|
||||
// LineEndingStyle defines the line ending style for lines.
|
||||
// The currently supported line ending styles are None, Arrow (ClosedArrow) and Butt.
|
||||
type LineEndingStyle int ;
|
||||
|
||||
// FlipY flips the sign of the Dy component of the vector.
|
||||
func (_ccd Vector )FlipY ()Vector {_ccd .Dy =-_ccd .Dy ;return _ccd };
|
||||
// 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 );};};};
|
||||
|
||||
// Rotate rotates the vector by the specified angle.
|
||||
func (_cbge Vector )Rotate (phi float64 )Vector {_aeea :=_cbge .Magnitude ();_acae :=_cbge .GetPolarAngle ();return NewVectorPolar (_aeea ,_acae +phi );};
|
||||
func (_dcd Vector )Rotate (phi float64 )Vector {_cca :=_dcd .Magnitude ();_bec :=_dcd .GetPolarAngle ();return NewVectorPolar (_cca ,_bec +phi );};
|
||||
|
||||
// Polyline defines a slice of points that are connected as straight lines.
|
||||
type Polyline struct{Points []Point ;LineColor *_a .PdfColorDeviceRGB ;LineWidth float64 ;};
|
||||
// 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 ;};
|
||||
|
||||
// Magnitude returns the magnitude of the vector.
|
||||
func (_bgf Vector )Magnitude ()float64 {return _d .Sqrt (_d .Pow (_bgf .Dx ,2.0)+_d .Pow (_bgf .Dy ,2.0))};
|
||||
// Copy returns a clone of the Bezier path.
|
||||
func (_ddd CubicBezierPath )Copy ()CubicBezierPath {_dc :=CubicBezierPath {};_dc .Curves =append (_dc .Curves ,_ddd .Curves ...);return _dc ;};
|
||||
|
||||
// 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 *_a .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineStyle LineStyle ;};
|
||||
// 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 ;};
|
||||
|
||||
// Length returns the number of points in the path.
|
||||
func (_egb Path )Length ()int {return len (_egb .Points )};
|
||||
// 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 ;};
|
||||
|
||||
// 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 *_a .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_a .PdfColorDeviceRGB ;Opacity float64 ;};
|
||||
// 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 };
|
||||
|
||||
// RemovePoint removes the point at the index specified by number from the
|
||||
// path. The index is 1-based.
|
||||
func (_daf Path )RemovePoint (number int )Path {if number < 1||number > len (_daf .Points ){return _daf ;};_gc :=number -1;_daf .Points =append (_daf .Points [:_gc ],_daf .Points [_gc +1:]...);return _daf ;};
|
||||
// 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 ;};
|
||||
|
||||
// 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 *_a .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_a .PdfColorDeviceRGB ;Opacity float64 ;};
|
||||
// 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 );};
|
||||
|
||||
// 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 ;};
|
||||
|
||||
// NewPath returns a new empty path.
|
||||
func NewPath ()Path {return Path {}};
|
||||
1843
core/core.go
1843
core/core.go
File diff suppressed because one or more lines are too long
@ -9,40 +9,73 @@
|
||||
// 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 (_d "crypto/aes";_e "crypto/cipher";_g "crypto/md5";_c "crypto/rand";_fg "crypto/rc4";_ff "fmt";_fb "github.com/unidoc/unipdf/v3/common";_ed "github.com/unidoc/unipdf/v3/core/security";_b "io";);func init (){_gdg ("\u0041\u0045\u0053V\u0032",_ec )};func (filterIdentity )EncryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };
|
||||
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 )};
|
||||
|
||||
// NewFilter creates CryptFilter from a corresponding dictionary.
|
||||
func NewFilter (d FilterDict )(Filter ,error ){_ece ,_cga :=_ca (d .CFM );if _cga !=nil {return nil ,_cga ;};_gd ,_cga :=_ece (d );if _cga !=nil {return nil ,_cga ;};return _gd ,nil ;};func (filterAES )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ge ,_cb :=_d .NewCipher (okey );if _cb !=nil {return nil ,_cb ;};if len (buf )< 16{_fb .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 ,_ff .Errorf ("\u0041\u0045\u0053\u003a B\u0075\u0066\u0020\u006c\u0065\u006e\u0020\u003c\u0020\u0031\u0036\u0020\u0028\u0025d\u0029",len (buf ));};_db :=buf [:16];buf =buf [16:];if len (buf )%16!=0{_fb .Log .Debug ("\u0020\u0069\u0076\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (_db ),_db );_fb .Log .Debug ("\u0062\u0075\u0066\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,_ff .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 ));};_fc :=_e .NewCBCDecrypter (_ge ,_db );_fb .Log .Trace ("A\u0045\u0053\u0020\u0044ec\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );_fb .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 );_fc .CryptBlocks (buf ,buf );_fb .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );if len (buf )==0{_fb .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 ;};_bc :=int (buf [len (buf )-1]);if _bc > len (buf ){_fb .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",_bc ,len (buf ));return buf ,_ff .Errorf ("\u0069n\u0076a\u006c\u0069\u0064\u0020\u0070a\u0064\u0020l\u0065\u006e\u0067\u0074\u0068");};buf =buf [:len (buf )-_bc ];return buf ,nil ;};
|
||||
// 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 ;};
|
||||
|
||||
// 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 (_ged filterV2 )HandlerVersion ()(V ,R int ){V ,R =2,3;return ;};
|
||||
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 _ac (objNum ,genNum ,ekey ,true );};
|
||||
|
||||
// PDFVersion implements Filter interface.
|
||||
func (filterAESV3 )PDFVersion ()[2]int {return [2]int {2,0}};type filterAESV3 struct{filterAES };func (filterIdentity )HandlerVersion ()(V ,R int ){return ;};
|
||||
func (filterAESV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _ebc (objNum ,genNum ,ekey ,true );};
|
||||
|
||||
// KeyLength implements Filter interface.
|
||||
func (_dgc filterV2 )KeyLength ()int {return _dgc ._efc };func init (){_gdg ("\u0041\u0045\u0053V\u0033",_bg )};var (_cg =make (map[string ]filterFunc ););func (filterIdentity )MakeKey (objNum ,genNum uint32 ,fkey []byte )([]byte ,error ){return fkey ,nil };
|
||||
|
||||
// NewFilterAESV3 creates an AES-based filter with a 256 bit key (AESV3).
|
||||
func NewFilterAESV3 ()Filter {_a ,_ecb :=_bg (FilterDict {});if _ecb !=nil {_fb .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",_ecb );return filterAESV3 {};};return _a ;};
|
||||
|
||||
// KeyLength implements Filter interface.
|
||||
func (filterAESV3 )KeyLength ()int {return 256/8};type filterAESV2 struct{filterAES };
|
||||
|
||||
// Name implements Filter interface.
|
||||
func (filterAESV3 )Name ()string {return "\u0041\u0045\u0053V\u0033"};type filterFunc func (_gc FilterDict )(Filter ,error );func _dg (_ba FilterDict )(Filter ,error ){if _ba .Length %8!=0{return nil ,_ff .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",_ba .Length );};if _ba .Length < 5||_ba .Length > 16{if _ba .Length ==40||_ba .Length ==64||_ba .Length ==128{_fb .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",_ba .Length );_ba .Length /=8;}else {return nil ,_ff .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",_ba .Length );};};return filterV2 {_efc :_ba .Length },nil ;};
|
||||
|
||||
// Name implements Filter interface.
|
||||
func (filterV2 )Name ()string {return "\u0056\u0032"};
|
||||
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 ){_bab ,_bac :=_fg .NewCipher (okey );if _bac !=nil {return nil ,_bac ;};_fb .Log .Trace ("\u0052\u00434\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_bab .XORKeyStream (buf ,buf );_fb .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};func _ec (_ede FilterDict )(Filter ,error ){if _ede .Length ==128{_fb .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",_ede .Length );_ede .Length /=8;};if _ede .Length !=0&&_ede .Length !=16{return nil ,_ff .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",_ede .Length );};return filterAESV2 {},nil ;};
|
||||
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 (_gb filterV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _ac (objNum ,genNum ,ekey ,false );};func init (){_gdg ("\u0056\u0032",_dg )};
|
||||
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 {};
|
||||
|
||||
// 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 ;};
|
||||
|
||||
// Filter is a common interface for crypt filter methods.
|
||||
type Filter interface{
|
||||
@ -61,48 +94,15 @@ 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 (_adb ,_dfc uint32 ,_gaa []byte )([]byte ,error );
|
||||
MakeKey (_gcb ,_bfb uint32 ,_gcbb []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 (_gafc []byte ,_aa []byte )([]byte ,error );
|
||||
EncryptBytes (_de []byte ,_bacd []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 (_bef []byte ,_ccg []byte )([]byte ,error );};
|
||||
|
||||
// PDFVersion implements Filter interface.
|
||||
func (_cba filterV2 )PDFVersion ()[2]int {return [2]int {}};func _ca (_ccc string )(filterFunc ,error ){_fcd :=_cg [_ccc ];if _fcd ==nil {return nil ,_ff .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",_ccc );};return _fcd ,nil ;};func _gdg (_bgg string ,_ag filterFunc ){if _ ,_ea :=_cg [_bgg ];_ea {panic ("\u0061l\u0072e\u0061\u0064\u0079\u0020\u0072e\u0067\u0069s\u0074\u0065\u0072\u0065\u0064");};_cg [_bgg ]=_ag ;};func (filterIdentity )KeyLength ()int {return 0};
|
||||
|
||||
// HandlerVersion implements Filter interface.
|
||||
func (filterAESV2 )HandlerVersion ()(V ,R int ){V ,R =4,4;return ;};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"};func (filterIdentity )PDFVersion ()[2]int {return [2]int {}};
|
||||
|
||||
// NewFilterV2 creates a RC4-based filter with a specified key length (in bytes).
|
||||
func NewFilterV2 (length int )Filter {_ab ,_ad :=_dg (FilterDict {Length :length });if _ad !=nil {_fb .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",_ad );return filterV2 {_efc :length };};return _ab ;};
|
||||
|
||||
// MakeKey implements Filter interface.
|
||||
func (filterAESV3 )MakeKey (_ ,_ uint32 ,ekey []byte )([]byte ,error ){return ekey ,nil };
|
||||
|
||||
// FilterDict represents information from a CryptFilter dictionary.
|
||||
type FilterDict struct{CFM string ;AuthEvent _ed .AuthEvent ;Length int ;};func _ac (_gaf ,_feb uint32 ,_fa []byte ,_af bool )([]byte ,error ){_fd :=make ([]byte ,len (_fa )+5);for _eeb :=0;_eeb < len (_fa );_eeb ++{_fd [_eeb ]=_fa [_eeb ];};for _afd :=0;_afd < 3;_afd ++{_be :=byte ((_gaf >>uint32 (8*_afd ))&0xff);_fd [_afd +len (_fa )]=_be ;};for _egf :=0;_egf < 2;_egf ++{_dae :=byte ((_feb >>uint32 (8*_egf ))&0xff);_fd [_egf +len (_fa )+3]=_dae ;};if _af {_fd =append (_fd ,0x73);_fd =append (_fd ,0x41);_fd =append (_fd ,0x6C);_fd =append (_fd ,0x54);};_bff :=_g .New ();_bff .Write (_fd );_df :=_bff .Sum (nil );if len (_fa )+5< 16{return _df [0:len (_fa )+5],nil ;};return _df ,nil ;};var _ Filter =filterV2 {};
|
||||
|
||||
// PDFVersion implements Filter interface.
|
||||
func (filterAESV2 )PDFVersion ()[2]int {return [2]int {1,5}};var _ Filter =filterAESV2 {};
|
||||
|
||||
// NewIdentity creates an identity filter that bypasses all data without changes.
|
||||
func NewIdentity ()Filter {return filterIdentity {}};func (filterAES )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_dc ,_da :=_d .NewCipher (okey );if _da !=nil {return nil ,_da ;};_fb .Log .Trace ("A\u0045\u0053\u0020\u0045nc\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );const _bfa =_d .BlockSize ;_ecbe :=_bfa -len (buf )%_bfa ;for _dd :=0;_dd < _ecbe ;_dd ++{buf =append (buf ,byte (_ecbe ));};_fb .Log .Trace ("\u0050a\u0064d\u0065\u0064\u0020\u0074\u006f \u0025\u0064 \u0062\u0079\u0074\u0065\u0073",len (buf ));_ga :=make ([]byte ,_bfa +len (buf ));_eg :=_ga [:_bfa ];if _ ,_fgb :=_b .ReadFull (_c .Reader ,_eg );_fgb !=nil {return nil ,_fgb ;};_cc :=_e .NewCBCEncrypter (_dc ,_eg );_cc .CryptBlocks (_ga [_bfa :],buf );buf =_ga ;_fb .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,nil ;};type filterV2 struct{_efc int };var _ Filter =filterAESV3 {};type filterAES struct{};func _bg (_fe FilterDict )(Filter ,error ){if _fe .Length ==256{_fb .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",_fe .Length );_fe .Length /=8;};if _fe .Length !=0&&_fe .Length !=32{return nil ,_ff .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",_fe .Length );};return filterAESV3 {},nil ;};
|
||||
DecryptBytes (_dae []byte ,_bbe []byte )([]byte ,error );};var _ Filter =filterAESV2 {};
|
||||
|
||||
// KeyLength implements Filter interface.
|
||||
func (filterAESV2 )KeyLength ()int {return 128/8};type filterIdentity struct{};
|
||||
|
||||
// HandlerVersion implements Filter interface.
|
||||
func (filterAESV3 )HandlerVersion ()(V ,R int ){V ,R =5,6;return ;};
|
||||
|
||||
// EncryptBytes implements Filter interface.
|
||||
func (filterV2 )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_bd ,_cf :=_fg .NewCipher (okey );if _cf !=nil {return nil ,_cf ;};_fb .Log .Trace ("\u0052\u00434\u0020\u0045\u006ec\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_bd .XORKeyStream (buf ,buf );_fb .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};
|
||||
|
||||
// NewFilterAESV2 creates an AES-based filter with a 128 bit key (AESV2).
|
||||
func NewFilterAESV2 ()Filter {_ef ,_ce :=_ec (FilterDict {});if _ce !=nil {_fb .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",_ce );return filterAESV2 {};};return _ef ;};func (filterIdentity )Name ()string {return "\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079"};
|
||||
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 };
|
||||
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2364
creator/creator.go
2364
creator/creator.go
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34
fdf/fdf.go
34
fdf/fdf.go
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@ -10,28 +10,28 @@
|
||||
// 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 (_dd "encoding/json";_dc "github.com/unidoc/unipdf/v3/core";_e "github.com/unidoc/unipdf/v3/model";_g "io";_dg "os";);
|
||||
|
||||
// FieldData represents form field data loaded from JSON file.
|
||||
type FieldData struct{_f []fieldValue };
|
||||
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 (_gfa FieldData )JSON ()(string ,error ){_dce ,_cab :=_dd .MarshalIndent (_gfa ._f ,"","\u0020\u0020\u0020\u0020");return string (_dce ),_cab ;};type fieldValue struct{Name string `json:"name"`;Value string `json:"value"`;
|
||||
func (_fd FieldData )JSON ()(string ,error ){_aaf ,_bdea :=_e .MarshalIndent (_fd ._ae ,"","\u0020\u0020\u0020\u0020");return string (_aaf ),_bdea ;};
|
||||
|
||||
// Options lists allowed values if present.
|
||||
Options []string `json:"options,omitempty"`;};
|
||||
|
||||
// LoadFromPDF loads form field data from a PDF.
|
||||
func LoadFromPDF (rs _g .ReadSeeker )(*FieldData ,error ){_ga ,_ff :=_e .NewPdfReader (rs );if _ff !=nil {return nil ,_ff ;};if _ga .AcroForm ==nil {return nil ,nil ;};var _eg []fieldValue ;_ed :=_ga .AcroForm .AllFields ();for _ ,_ef :=range _ed {var _a []string ;_c :=make (map[string ]struct{});_bf ,_fc :=_ef .FullName ();if _fc !=nil {return nil ,_fc ;};if _fee ,_cb :=_ef .V .(*_dc .PdfObjectString );_cb {_eg =append (_eg ,fieldValue {Name :_bf ,Value :_fee .Decoded ()});continue ;};var _ae string ;for _ ,_ddc :=range _ef .Annotations {_ca ,_af :=_dc .GetName (_ddc .AS );if _af {_ae =_ca .String ();};_dge ,_cf :=_dc .GetDict (_ddc .AP );if !_cf {continue ;};_fcc ,_ :=_dc .GetDict (_dge .Get ("\u004e"));for _ ,_edb :=range _fcc .Keys (){_fef :=_edb .String ();if _ ,_bb :=_c [_fef ];!_bb {_a =append (_a ,_fef );_c [_fef ]=struct{}{};};};_db ,_ :=_dc .GetDict (_dge .Get ("\u0044"));for _ ,_ag :=range _db .Keys (){_fed :=_ag .String ();if _ ,_cd :=_c [_fed ];!_cd {_a =append (_a ,_fed );_c [_fed ]=struct{}{};};};};_cdd :=fieldValue {Name :_bf ,Value :_ae ,Options :_a };_eg =append (_eg ,_cdd );};_bba :=FieldData {_f :_eg };return &_bba ,nil ;};
|
||||
|
||||
// LoadFromPDFFile loads form field data from a PDF file.
|
||||
func LoadFromPDFFile (filePath string )(*FieldData ,error ){_efbe ,_fb :=_dg .Open (filePath );if _fb !=nil {return nil ,_fb ;};defer _efbe .Close ();return LoadFromPDF (_efbe );};
|
||||
|
||||
// LoadFromJSON loads JSON form data from `r`.
|
||||
func LoadFromJSON (r _g .Reader )(*FieldData ,error ){var _ge FieldData ;_fe :=_dd .NewDecoder (r ).Decode (&_ge ._f );if _fe !=nil {return nil ,_fe ;};return &_ge ,nil ;};
|
||||
|
||||
// FieldValues implements model.FieldValueProvider interface.
|
||||
func (_df *FieldData )FieldValues ()(map[string ]_dc .PdfObject ,error ){_fa :=make (map[string ]_dc .PdfObject );for _ ,_bbf :=range _df ._f {if len (_bbf .Value )> 0{_fa [_bbf .Name ]=_dc .MakeString (_bbf .Value );};};return _fa ,nil ;};
|
||||
// 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 ){_gd ,_b :=_dg .Open (filePath );if _b !=nil {return nil ,_b ;};defer _gd .Close ();return LoadFromJSON (_gd );};
|
||||
func LoadFromJSONFile (filePath string )(*FieldData ,error ){_c ,_gd :=_d .Open (filePath );if _gd !=nil {return nil ,_gd ;};defer _c .Close ();return LoadFromJSON (_c );};
|
||||
|
||||
// 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 );};
|
||||
|
||||
// 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 ;};
|
||||
|
||||
// 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"`;
|
||||
|
||||
// Options lists allowed values if present.
|
||||
Options []string `json:"options,omitempty"`;};
|
||||
File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
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File diff suppressed because one or more lines are too long
@ -9,4 +9,4 @@
|
||||
// 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 (_e "encoding/binary";_g "unsafe";);var (ByteOrder _e .ByteOrder ;_d bool ;);func init (){const _c =int (_g .Sizeof (0));_gb :=1;_cc :=(*[_c ]byte )(_g .Pointer (&_gb ));if _cc [0]==0{_d =true ;ByteOrder =_e .BigEndian ;}else {ByteOrder =_e .LittleEndian ;};};func IsLittle ()bool {return !_d };func IsBig ()bool {return _d };
|
||||
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 ;);
|
||||
File diff suppressed because one or more lines are too long
@ -9,4 +9,4 @@
|
||||
// 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";func (_cc *NumSlice )Add (v float32 ){*_cc =append (*_cc ,v )};func Sign (v float32 )float32 {if v >=0.0{return 1.0;};return -1.0;};func (_aff NumSlice )GetIntSlice ()[]int {_fb :=make ([]int ,len (_aff ));for _fbc ,_cee :=range _aff {_fb [_fbc ]=int (_cee );};return _fb ;};func (_dgg *Stack )peek ()(interface{},bool ){_fad :=_dgg .top ();if _fad ==-1{return nil ,false ;};return _dgg .Data [_fad ],true ;};func (_c IntsMap )Add (key uint64 ,value int ){_c [key ]=append (_c [key ],value )};func (_da *Stack )Peek ()(_e interface{},_eb bool ){return _da .peek ()};func Max (x ,y int )int {if x > y {return x ;};return y ;};type IntsMap map[uint64 ][]int ;func NewIntSlice (i int )*IntSlice {_gg :=IntSlice (make ([]int ,i ));return &_gg };type NumSlice []float32 ;func Abs (v int )int {if v > 0{return v ;};return -v ;};func (_f IntsMap )Get (key uint64 )(int ,bool ){_ag ,_ce :=_f [key ];if !_ce {return 0,false ;};if len (_ag )==0{return 0,false ;};return _ag [0],true ;};func (_gd IntSlice )Get (index int )(int ,error ){if index > len (_gd )-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 _gd [index ],nil ;};func (_fe IntSlice )Size ()int {return len (_fe )};func (_dg NumSlice )GetInt (i int )(int ,error ){const _bf ="\u0047\u0065\u0074\u0049\u006e\u0074";if i < 0||i > len (_dg )-1{return 0,_a .Errorf (_bf ,"\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );};_af :=_dg [i ];return int (_af +Sign (_af )*0.5),nil ;};func (_gde *Stack )top ()int {return len (_gde .Data )-1};func (_b *IntSlice )Copy ()*IntSlice {_db :=IntSlice (make ([]int ,len (*_b )));copy (_db ,*_b );return &_db ;};func NewNumSlice (i int )*NumSlice {_be :=NumSlice (make ([]float32 ,i ));return &_be };func (_ac IntsMap )Delete (key uint64 ){delete (_ac ,key )};func Min (x ,y int )int {if x < y {return x ;};return y ;};func (_dd *Stack )Pop ()(_cf interface{},_fbd bool ){_cf ,_fbd =_dd .peek ();if !_fbd {return nil ,_fbd ;};_dd .Data =_dd .Data [:_dd .top ()];return _cf ,true ;};func (_gb *NumSlice )AddInt (v int ){*_gb =append (*_gb ,float32 (v ))};func (_fa IntsMap )GetSlice (key uint64 )([]int ,bool ){_d ,_dc :=_fa [key ];if !_dc {return nil ,false ;};return _d ,true ;};func (_gbg NumSlice )Get (i int )(float32 ,error ){if i < 0||i > len (_gbg )-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 _gbg [i ],nil ;};func Ceil (numerator ,denominator int )int {if numerator %denominator ==0{return numerator /denominator ;};return (numerator /denominator )+1;};func (_gf *Stack )Push (v interface{}){_gf .Data =append (_gf .Data ,v )};type Stack struct{Data []interface{};Aux *Stack ;};func (_fec *Stack )Len ()int {return len (_fec .Data )};type IntSlice []int ;func (_ab *IntSlice )Add (v int )error {if _ab ==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");};*_ab =append (*_ab ,v );return nil ;};
|
||||
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 )};
|
||||
@ -9,4 +9,4 @@
|
||||
// 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 tests ;
|
||||
package bench ;
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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 decoder ;import (_ce "github.com/unidoc/unipdf/v3/internal/bitwise";_f "github.com/unidoc/unipdf/v3/internal/jbig2/bitmap";_a "github.com/unidoc/unipdf/v3/internal/jbig2/document";_b "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_d "image";);type Parameters struct{UnpaddedData bool ;Color _f .Color ;};func (_fd *Decoder )DecodeNextPage ()([]byte ,error ){_fd ._bf ++;_gg :=_fd ._bf ;return _fd .decodePage (_gg );};type Decoder struct{_dd _ce .StreamReader ;_fa *_a .Document ;_bf int ;_cef Parameters ;};func (_fg *Decoder )decodePageImage (_eg int )(_d .Image ,error ){const _efe ="\u0064e\u0063o\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";if _eg < 0{return nil ,_b .Errorf (_efe ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_eg );};if _eg > int (_fg ._fa .NumberOfPages ){return nil ,_b .Errorf (_efe ,"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 );};_ec ,_ac :=_fg ._fa .GetPage (_eg );if _ac !=nil {return nil ,_b .Wrap (_ac ,_efe ,"");};_egc ,_ac :=_ec .GetBitmap ();if _ac !=nil {return nil ,_b .Wrap (_ac ,_efe ,"");};return _egc .ToImage (),nil ;};func Decode (input []byte ,parameters Parameters ,globals *_a .Globals )(*Decoder ,error ){_ae :=_ce .NewReader (input );_bfc ,_bfa :=_a .DecodeDocument (_ae ,globals );if _bfa !=nil {return nil ,_bfa ;};return &Decoder {_dd :_ae ,_fa :_bfc ,_cef :parameters },nil ;};func (_g *Decoder )DecodePage (pageNumber int )([]byte ,error ){return _g .decodePage (pageNumber )};func (_e *Decoder )PageNumber ()(int ,error ){const _aa ="\u0044e\u0063o\u0064\u0065\u0072\u002e\u0050a\u0067\u0065N\u0075\u006d\u0062\u0065\u0072";if _e ._fa ==nil {return 0,_b .Error (_aa ,"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 (_e ._fa .NumberOfPages ),nil ;};func (_ef *Decoder )decodePage (_df int )([]byte ,error ){const _bfe ="\u0064\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065";if _df < 0{return nil ,_b .Errorf (_bfe ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_df );};if _df > int (_ef ._fa .NumberOfPages ){return nil ,_b .Errorf (_bfe ,"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",_df );};_aab ,_faa :=_ef ._fa .GetPage (_df );if _faa !=nil {return nil ,_b .Wrap (_faa ,_bfe ,"");};_aae ,_faa :=_aab .GetBitmap ();if _faa !=nil {return nil ,_b .Wrap (_faa ,_bfe ,"");};_aae .InverseData ();if !_ef ._cef .UnpaddedData {return _aae .Data ,nil ;};return _aae .GetUnpaddedData ();};func (_cf *Decoder )DecodePageImage (pageNumber int )(_d .Image ,error ){const _be ="\u0064\u0065\u0063od\u0065\u0072\u002e\u0044\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";_ad ,_fe :=_cf .decodePageImage (pageNumber );if _fe !=nil {return nil ,_b .Wrap (_fe ,_be ,"");};return _ad ,nil ;};
|
||||
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 ;};
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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";_cd "golang.org/x/xerrors";);func Error (processName ,message string )error {return _g (message ,processName )};func (_cfe *processError )Unwrap ()error {return _cfe ._d };func Errorf (processName ,message string ,arguments ...interface{})error {return _g (_c .Sprintf (message ,arguments ...),processName );};func Wrapf (err error ,processName ,message string ,arguments ...interface{})error {if _gd ,_b :=err .(*processError );_b {_gd ._ab ="";};_ef :=_g (_c .Sprintf (message ,arguments ...),processName );_ef ._d =err ;return _ef ;};func (_db *processError )Error ()string {var _abc string ;if _db ._ab !=""{_abc =_db ._ab ;};_abc +="\u0050r\u006f\u0063\u0065\u0073\u0073\u003a "+_db ._cf ;if _db ._cb !=""{_abc +="\u0020\u004d\u0065\u0073\u0073\u0061\u0067\u0065\u003a\u0020"+_db ._cb ;};if _db ._d !=nil {_abc +="\u002e\u0020"+_db ._d .Error ();};return _abc ;};type processError struct{_ab string ;_cf string ;_cb string ;_d error ;};func Wrap (err error ,processName ,message string )error {if _e ,_aa :=err .(*processError );_aa {_e ._ab ="";};_ee :=_g (message ,processName );_ee ._d =err ;return _ee ;};var _ _cd .Wrapper =(*processError )(nil );func _g (_ac ,_abb string )*processError {return &processError {_ab :"\u005b\u0055\u006e\u0069\u0050\u0044\u0046\u005d",_cb :_ac ,_cf :_abb };};
|
||||
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 };};
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@ -9,4 +9,4 @@
|
||||
// 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 _dc "errors";var ErrOOB =_dc .New ("o\u0075\u0074\u0020\u006f\u0066\u0020\u0062\u0061\u006e\u0064");
|
||||
package internal ;import _b "errors";var ErrOOB =_b .New ("o\u0075\u0074\u0020\u006f\u0066\u0020\u0062\u0061\u006e\u0064");
|
||||
@ -9,4 +9,4 @@
|
||||
// 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 (_fa "github.com/unidoc/unipdf/v3/internal/bitwise";_d "github.com/unidoc/unipdf/v3/internal/jbig2/decoder";_dd "github.com/unidoc/unipdf/v3/internal/jbig2/document";_fe "github.com/unidoc/unipdf/v3/internal/jbig2/document/segments";_ad "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_a "sort";);func DecodeBytes (encoded []byte ,parameters _d .Parameters ,globals ...Globals )([]byte ,error ){var _e Globals ;if len (globals )> 0{_e =globals [0];};_g ,_eg :=_d .Decode (encoded ,parameters ,_e .ToDocumentGlobals ());if _eg !=nil {return nil ,_eg ;};return _g .DecodeNextPage ();};func (_feb Globals )ToDocumentGlobals ()*_dd .Globals {if _feb ==nil {return nil ;};_ee :=[]*_fe .Header {};for _ ,_dec :=range _feb {_ee =append (_ee ,_dec );};_a .Slice (_ee ,func (_bf ,_dc int )bool {return _ee [_bf ].SegmentNumber < _ee [_dc ].SegmentNumber });return &_dd .Globals {Segments :_ee };};type Globals map[int ]*_fe .Header ;func DecodeGlobals (encoded []byte )(Globals ,error ){const _ega ="\u0044\u0065\u0063\u006f\u0064\u0065\u0047\u006c\u006f\u0062\u0061\u006c\u0073";_ge :=_fa .NewReader (encoded );_ga ,_adg :=_dd .DecodeDocument (_ge ,nil );if _adg !=nil {return nil ,_ad .Wrap (_adg ,_ega ,"");};if _ga .GlobalSegments ==nil ||(_ga .GlobalSegments .Segments ==nil ){return nil ,_ad .Error (_ega ,"\u006eo\u0020\u0067\u006c\u006f\u0062\u0061\u006c\u0020\u0073\u0065\u0067m\u0065\u006e\u0074\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};_de :=Globals {};for _ ,_aa :=range _ga .GlobalSegments .Segments {_de [int (_aa .SegmentNumber )]=_aa ;};return _de ,nil ;};
|
||||
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 ;};
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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 (_d "github.com/unidoc/unipdf/v3/internal/bitwise";_a "github.com/unidoc/unipdf/v3/internal/imageutil";_fd "io";);func NewWriter (img _a .ImageBase )*Writer {return &Writer {_ad :_d .NewWriterMSB (img .Data ),_cf :img ,_ee :img .ColorComponents ,_dcf :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};func (_db *Reader )ReadSamples (samples []uint32 )(_gd error ){for _cb :=0;_cb < len (samples );_cb ++{samples [_cb ],_gd =_db .ReadSample ();if _gd !=nil {return _gd ;};};return nil ;};func (_c *Reader )ReadSample ()(uint32 ,error ){if _c ._af ==_c ._e .Height {return 0,_fd .EOF ;};_ea ,_eb :=_c ._g .ReadBits (byte (_c ._e .BitsPerComponent ));if _eb !=nil {return 0,_eb ;};_c ._dg --;if _c ._dg ==0{_c ._dg =_c ._e .ColorComponents ;_c ._b ++;};if _c ._b ==_c ._e .Width {if _c ._dc {_c ._g .ConsumeRemainingBits ();};_c ._b =0;_c ._af ++;};return uint32 (_ea ),nil ;};func (_cca *Writer )WriteSamples (samples []uint32 )error {for _cd :=0;_cd < len (samples );_cd ++{if _fab :=_cca .WriteSample (samples [_cd ]);_fab !=nil {return _fab ;};};return nil ;};type SampleReader interface{ReadSample ()(uint32 ,error );ReadSamples (_ff []uint32 )error ;};type Writer struct{_cf _a .ImageBase ;_ad *_d .Writer ;_gde ,_ee int ;_dcf bool ;};func ResampleUint32 (data []uint32 ,bitsPerInputSample int ,bitsPerOutputSample int )[]uint32 {var _fba []uint32 ;_dfe :=bitsPerOutputSample ;var _aba uint32 ;var _abg uint32 ;_bc :=0;_bg :=0;_gb :=0;for _gb < len (data ){if _bc > 0{_ac :=_bc ;if _dfe < _ac {_ac =_dfe ;};_aba =(_aba <<uint (_ac ))|(_abg >>uint (bitsPerInputSample -_ac ));_bc -=_ac ;if _bc > 0{_abg =_abg <<uint (_ac );}else {_abg =0;};_dfe -=_ac ;if _dfe ==0{_fba =append (_fba ,_aba );_dfe =bitsPerOutputSample ;_aba =0;_bg ++;};}else {_ge :=data [_gb ];_gb ++;_gdd :=bitsPerInputSample ;if _dfe < _gdd {_gdd =_dfe ;};_bc =bitsPerInputSample -_gdd ;_aba =(_aba <<uint (_gdd ))|(_ge >>uint (_bc ));if _gdd < bitsPerInputSample {_abg =_ge <<uint (_gdd );};_dfe -=_gdd ;if _dfe ==0{_fba =append (_fba ,_aba );_dfe =bitsPerOutputSample ;_aba =0;_bg ++;};};};for _bc >=bitsPerOutputSample {_bd :=_bc ;if _dfe < _bd {_bd =_dfe ;};_aba =(_aba <<uint (_bd ))|(_abg >>uint (bitsPerInputSample -_bd ));_bc -=_bd ;if _bc > 0{_abg =_abg <<uint (_bd );}else {_abg =0;};_dfe -=_bd ;if _dfe ==0{_fba =append (_fba ,_aba );_dfe =bitsPerOutputSample ;_aba =0;_bg ++;};};if _dfe > 0&&_dfe < bitsPerOutputSample {_aba <<=uint (_dfe );_fba =append (_fba ,_aba );};return _fba ;};func NewReader (img _a .ImageBase )*Reader {return &Reader {_g :_d .NewReader (img .Data ),_e :img ,_dg :img .ColorComponents ,_dc :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};func ResampleBytes (data []byte ,bitsPerSample int )[]uint32 {var _ab []uint32 ;_df :=bitsPerSample ;var _fe uint32 ;var _fb byte ;_fbd :=0;_ba :=0;_eag :=0;for _eag < len (data ){if _fbd > 0{_eg :=_fbd ;if _df < _eg {_eg =_df ;};_fe =(_fe <<uint (_eg ))|uint32 (_fb >>uint (8-_eg ));_fbd -=_eg ;if _fbd > 0{_fb =_fb <<uint (_eg );}else {_fb =0;};_df -=_eg ;if _df ==0{_ab =append (_ab ,_fe );_df =bitsPerSample ;_fe =0;_ba ++;};}else {_ffd :=data [_eag ];_eag ++;_feb :=8;if _df < _feb {_feb =_df ;};_fbd =8-_feb ;_fe =(_fe <<uint (_feb ))|uint32 (_ffd >>uint (_fbd ));if _feb < 8{_fb =_ffd <<uint (_feb );};_df -=_feb ;if _df ==0{_ab =append (_ab ,_fe );_df =bitsPerSample ;_fe =0;_ba ++;};};};for _fbd >=bitsPerSample {_fa :=_fbd ;if _df < _fa {_fa =_df ;};_fe =(_fe <<uint (_fa ))|uint32 (_fb >>uint (8-_fa ));_fbd -=_fa ;if _fbd > 0{_fb =_fb <<uint (_fa );}else {_fb =0;};_df -=_fa ;if _df ==0{_ab =append (_ab ,_fe );_df =bitsPerSample ;_fe =0;_ba ++;};};return _ab ;};type Reader struct{_e _a .ImageBase ;_g *_d .Reader ;_b ,_af ,_dg int ;_dc bool ;};type SampleWriter interface{WriteSample (_ga uint32 )error ;WriteSamples (_cc []uint32 )error ;};func (_ged *Writer )WriteSample (sample uint32 )error {if _ ,_cff :=_ged ._ad .WriteBits (uint64 (sample ),_ged ._cf .BitsPerComponent );_cff !=nil {return _cff ;};_ged ._ee --;if _ged ._ee ==0{_ged ._ee =_ged ._cf .ColorComponents ;_ged ._gde ++;};if _ged ._gde ==_ged ._cf .Width {if _ged ._dcf {_ged ._ad .FinishByte ();};_ged ._gde =0;};return nil ;};
|
||||
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 ;};
|
||||
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4951
model/model.go
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model/model.go
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@ -10,24 +10,82 @@
|
||||
// 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 (_ga "bytes";_e "crypto";_ba "crypto/rand";_ge "crypto/rsa";_ce "crypto/x509";_c "crypto/x509/pkix";_dd "encoding/asn1";_bc "errors";_b "fmt";_cg "github.com/unidoc/pkcs7";_fd "github.com/unidoc/timestamp";_gf "github.com/unidoc/unipdf/v3/core";_da "github.com/unidoc/unipdf/v3/model";_cee "github.com/unidoc/unipdf/v3/model/sigutil";_f "hash";_d "time";);func _gfge (_dcc _ce .SignatureAlgorithm )(_e .Hash ,bool ){var _aff _e .Hash ;switch _dcc {case _ce .SHA1WithRSA :_aff =_e .SHA1 ;case _ce .SHA256WithRSA :_aff =_e .SHA256 ;case _ce .SHA384WithRSA :_aff =_e .SHA384 ;case _ce .SHA512WithRSA :_aff =_e .SHA512 ;default:return _e .SHA1 ,false ;};return _aff ,true ;};
|
||||
|
||||
// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
|
||||
func (_beb *adobeX509RSASHA1 )IsApplicable (sig *_da .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";};
|
||||
|
||||
// InitSignature initialises the PdfSignature.
|
||||
func (_bca *adobeX509RSASHA1 )InitSignature (sig *_da .PdfSignature )error {if _bca ._bcg ==nil {return _bc .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 _bca ._baa ==nil &&_bca ._aeb ==nil {return _bc .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");};_geg :=*_bca ;sig .Handler =&_geg ;sig .Filter =_gf .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_gf .MakeName ("\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031");sig .Cert =_gf .MakeString (string (_geg ._bcg .Raw ));sig .Reference =nil ;_af ,_cce :=_geg .NewDigest (sig );if _cce !=nil {return _cce ;};_af .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 _geg .sign (sig ,_af ,_bca ._eb );};func (_gge *adobeX509RSASHA1 )getCertificate (_gd *_da .PdfSignature )(*_ce .Certificate ,error ){if _gge ._bcg !=nil {return _gge ._bcg ,nil ;};_aeg ,_cd :=_gd .GetCerts ();if _cd !=nil {return nil ,_cd ;};return _aeg [0],nil ;};func (_dad *docTimeStamp )getCertificate (_cgc *_da .PdfSignature )(*_ce .Certificate ,error ){_fbg ,_fdd :=_cgc .GetCerts ();if _fdd !=nil {return nil ,_fdd ;};return _fbg [0],nil ;};type adobeX509RSASHA1 struct{_baa *_ge .PrivateKey ;_bcg *_ce .Certificate ;_aeb SignFunc ;_eb bool ;};
|
||||
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";);
|
||||
|
||||
// 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 )(_da .SignatureHandler ,error ){return &adobePKCS7Detached {_bac :true ,_ddg :signatureLen },nil ;};
|
||||
func NewEmptyAdobePKCS7Detached (signatureLen int )(_fe .SignatureHandler ,error ){return &adobePKCS7Detached {_fea :true ,_db :signatureLen },nil ;};
|
||||
|
||||
// Validate validates PdfSignature.
|
||||
func (_ac *adobeX509RSASHA1 )Validate (sig *_da .PdfSignature ,digest _da .Hasher )(_da .SignatureValidationResult ,error ){_cbf ,_fb :=_ac .getCertificate (sig );if _fb !=nil {return _da .SignatureValidationResult {},_fb ;};_ebb :=sig .Contents .Bytes ();var _ccd []byte ;if _ ,_bg :=_dd .Unmarshal (_ebb ,&_ccd );_bg !=nil {return _da .SignatureValidationResult {},_bg ;};_ec ,_aege :=digest .(_f .Hash );if !_aege {return _da .SignatureValidationResult {},_bc .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_ecg ,_ :=_gfge (_cbf .SignatureAlgorithm );if _fgc :=_ge .VerifyPKCS1v15 (_cbf .PublicKey .(*_ge .PublicKey ),_ecg ,_ec .Sum (nil ),_ccd );_fgc !=nil {return _da .SignatureValidationResult {},_fgc ;};return _da .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};type adobePKCS7Detached struct{_ea *_ge .PrivateKey ;_fc *_ce .Certificate ;_bac bool ;_ddg int ;};
|
||||
// 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 (_bdb *docTimeStamp )Sign (sig *_da .PdfSignature ,digest _da .Hasher )error {_beff ,_ffff :=_cee .NewTimestampRequest (digest .(*_ga .Buffer ),&_fd .RequestOptions {Hash :_bdb ._gb ,Certificates :true });if _ffff !=nil {return _ffff ;};_bafb :=_cee .NewTimestampClient ();_fddc ,_ffff :=_bafb .GetEncodedToken (_bdb ._fbc ,_beff );if _ffff !=nil {return _ffff ;};_de :=len (_fddc );if _bdb ._aad > 0&&_de > _bdb ._aad {return _da .ErrSignNotEnoughSpace ;};if _de > 0{_bdb ._aad =_de +128;};sig .Contents =_gf .MakeHexString (string (_fddc ));return nil ;};
|
||||
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 ;};
|
||||
|
||||
// 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 ;};
|
||||
|
||||
// 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 _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 ;};
|
||||
|
||||
// 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 ;};
|
||||
|
||||
// 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 ;};
|
||||
|
||||
// AdobeX509RSASHA1Opts defines options for configuring the adbe.x509.rsa_sha1
|
||||
// signature handler.
|
||||
@ -39,47 +97,18 @@ type AdobeX509RSASHA1Opts struct{
|
||||
// call is made in order to estimate the size of the signature contents.
|
||||
EstimateSize bool ;};
|
||||
|
||||
// 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 _e .Hash ,opts *DocTimeStampOpts )(_da .SignatureHandler ,error ){if opts ==nil {opts =&DocTimeStampOpts {};};if opts .SignatureSize <=0{opts .SignatureSize =4192;};return &docTimeStamp {_fbc :timestampServerURL ,_gb :hashAlgorithm ,_aad :opts .SignatureSize },nil ;};
|
||||
// DocTimeStampOpts defines options for configuring the timestamp handler.
|
||||
type DocTimeStampOpts struct{
|
||||
|
||||
// SignatureSize is the estimated size of the signature contents in bytes.
|
||||
// If not provided, a default signature size of 4192 is used.
|
||||
// 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 ;};
|
||||
|
||||
// NewDigest creates a new digest.
|
||||
func (_ab *adobePKCS7Detached )NewDigest (sig *_da .PdfSignature )(_da .Hasher ,error ){return _ga .NewBuffer (nil ),nil ;};
|
||||
|
||||
// Validate validates PdfSignature.
|
||||
func (_gg *adobePKCS7Detached )Validate (sig *_da .PdfSignature ,digest _da .Hasher )(_da .SignatureValidationResult ,error ){_dc :=sig .Contents .Bytes ();_bb ,_bf :=_cg .Parse (_dc );if _bf !=nil {return _da .SignatureValidationResult {},_bf ;};_ag :=digest .(*_ga .Buffer );_bb .Content =_ag .Bytes ();if _bf =_bb .Verify ();_bf !=nil {return _da .SignatureValidationResult {},_bf ;};return _da .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};
|
||||
|
||||
// Sign sets the Contents fields.
|
||||
func (_fab *adobePKCS7Detached )Sign (sig *_da .PdfSignature ,digest _da .Hasher )error {if _fab ._bac {_aa :=_fab ._ddg ;if _aa <=0{_aa =8192;};sig .Contents =_gf .MakeHexString (string (make ([]byte ,_aa )));return nil ;};_aag :=digest .(*_ga .Buffer );_be ,_gfg :=_cg .NewSignedData (_aag .Bytes ());if _gfg !=nil {return _gfg ;};if _ddd :=_be .AddSigner (_fab ._fc ,_fab ._ea ,_cg .SignerInfoConfig {});_ddd !=nil {return _ddd ;};_be .Detach ();_dcd ,_gfg :=_be .Finish ();if _gfg !=nil {return _gfg ;};_ae :=make ([]byte ,8192);copy (_ae ,_dcd );sig .Contents =_gf .MakeHexString (string (_ae ));return nil ;};
|
||||
|
||||
// NewDigest creates a new digest.
|
||||
func (_bde *docTimeStamp )NewDigest (sig *_da .PdfSignature )(_da .Hasher ,error ){return _ga .NewBuffer (nil ),nil ;};type timestampInfo struct{Version int ;Policy _dd .RawValue ;MessageImprint struct{HashAlgorithm _c .AlgorithmIdentifier ;HashedMessage []byte ;};SerialNumber _dd .RawValue ;GeneralizedTime _d .Time ;};
|
||||
|
||||
// NewDigest creates a new digest.
|
||||
func (_bbb *adobeX509RSASHA1 )NewDigest (sig *_da .PdfSignature )(_da .Hasher ,error ){_ff ,_ef :=_bbb .getCertificate (sig );if _ef !=nil {return nil ,_ef ;};_bd ,_ :=_gfge (_ff .SignatureAlgorithm );return _bd .New (),nil ;};
|
||||
|
||||
// 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 *_ge .PrivateKey ,certificate *_ce .Certificate )(_da .SignatureHandler ,error ){return &adobePKCS7Detached {_fc :certificate ,_ea :privateKey },nil ;};
|
||||
|
||||
// InitSignature initialises the PdfSignature.
|
||||
func (_fa *adobePKCS7Detached )InitSignature (sig *_da .PdfSignature )error {if !_fa ._bac {if _fa ._fc ==nil {return _bc .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 _fa ._ea ==nil {return _bc .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");};};_ca :=*_fa ;sig .Handler =&_ca ;sig .Filter =_gf .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_gf .MakeName ("\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064");sig .Reference =nil ;_gfd ,_cc :=_ca .NewDigest (sig );if _cc !=nil {return _cc ;};_gfd .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 _ca .Sign (sig ,_gfd );};
|
||||
|
||||
// SignFunc represents a custom signing function. The function should return
|
||||
// the computed signature.
|
||||
type SignFunc func (_cb *_da .PdfSignature ,_ddc _da .Hasher )([]byte ,error );
|
||||
|
||||
// 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 *_ce .Certificate ,signFunc SignFunc )(_da .SignatureHandler ,error ){return &adobeX509RSASHA1 {_bcg :certificate ,_aeb :signFunc },nil ;};
|
||||
func (_ged *adobePKCS7Detached )NewDigest (sig *_fe .PdfSignature )(_fe .Hasher ,error ){return _g .NewBuffer (nil ),nil ;};
|
||||
|
||||
// NewDocTimeStamp creates a new DocTimeStamp signature handler.
|
||||
// Both the timestamp server URL and the hash algorithm can be empty for the
|
||||
@ -89,41 +118,12 @@ func NewAdobeX509RSASHA1Custom (certificate *_ce .Certificate ,signFunc SignFunc
|
||||
// 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 _e .Hash )(_da .SignatureHandler ,error ){return &docTimeStamp {_fbc :timestampServerURL ,_gb :hashAlgorithm },nil ;};
|
||||
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 ;};
|
||||
|
||||
// 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 *_ge .PrivateKey ,certificate *_ce .Certificate )(_da .SignatureHandler ,error ){return &adobeX509RSASHA1 {_bcg :certificate ,_baa :privateKey },nil ;};func _df (_fee _dd .ObjectIdentifier )(_e .Hash ,error ){switch {case _fee .Equal (_cg .OIDDigestAlgorithmSHA1 ),_fee .Equal (_cg .OIDDigestAlgorithmECDSASHA1 ),_fee .Equal (_cg .OIDDigestAlgorithmDSA ),_fee .Equal (_cg .OIDDigestAlgorithmDSASHA1 ),_fee .Equal (_cg .OIDEncryptionAlgorithmRSA ):return _e .SHA1 ,nil ;case _fee .Equal (_cg .OIDDigestAlgorithmSHA256 ),_fee .Equal (_cg .OIDDigestAlgorithmECDSASHA256 ):return _e .SHA256 ,nil ;case _fee .Equal (_cg .OIDDigestAlgorithmSHA384 ),_fee .Equal (_cg .OIDDigestAlgorithmECDSASHA384 ):return _e .SHA384 ,nil ;case _fee .Equal (_cg .OIDDigestAlgorithmSHA512 ),_fee .Equal (_cg .OIDDigestAlgorithmECDSASHA512 ):return _e .SHA512 ,nil ;};return _e .Hash (0),_cg .ErrUnsupportedAlgorithm ;};
|
||||
func NewAdobeX509RSASHA1 (privateKey *_df .PrivateKey ,certificate *_cc .Certificate )(_fe .SignatureHandler ,error ){return &adobeX509RSASHA1 {_aba :certificate ,_aa :privateKey },nil ;};
|
||||
|
||||
// Sign sets the Contents fields for the PdfSignature.
|
||||
func (_ggc *adobeX509RSASHA1 )Sign (sig *_da .PdfSignature ,digest _da .Hasher )error {var _baf []byte ;var _fea error ;if _ggc ._aeb !=nil {_baf ,_fea =_ggc ._aeb (sig ,digest );if _fea !=nil {return _fea ;};}else {_cge ,_dg :=digest .(_f .Hash );if !_dg {return _bc .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_ecb ,_ :=_gfge (_ggc ._bcg .SignatureAlgorithm );_baf ,_fea =_ge .SignPKCS1v15 (_ba .Reader ,_ggc ._baa ,_ecb ,_cge .Sum (nil ));if _fea !=nil {return _fea ;};};_baf ,_fea =_dd .Marshal (_baf );if _fea !=nil {return _fea ;};sig .Contents =_gf .MakeHexString (string (_baf ));return nil ;};
|
||||
|
||||
// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
|
||||
func (_ed *docTimeStamp )IsApplicable (sig *_da .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";};
|
||||
|
||||
// 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 *_ce .Certificate ,signFunc SignFunc ,opts *AdobeX509RSASHA1Opts )(_da .SignatureHandler ,error ){if opts ==nil {opts =&AdobeX509RSASHA1Opts {};};return &adobeX509RSASHA1 {_bcg :certificate ,_aeb :signFunc ,_eb :opts .EstimateSize },nil ;};type docTimeStamp struct{_fbc string ;_gb _e .Hash ;_aad int ;};
|
||||
|
||||
// DocTimeStampOpts defines options for configuring the timestamp handler.
|
||||
type DocTimeStampOpts struct{
|
||||
|
||||
// SignatureSize is the estimated size of the signature contents in bytes.
|
||||
// If not provided, a default signature size of 4192 is used.
|
||||
// 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 (_fe *adobePKCS7Detached )getCertificate (_a *_da .PdfSignature )(*_ce .Certificate ,error ){if _fe ._fc !=nil {return _fe ._fc ,nil ;};_bab ,_fg :=_a .GetCerts ();if _fg !=nil {return nil ,_fg ;};return _bab [0],nil ;};
|
||||
|
||||
// Validate validates PdfSignature.
|
||||
func (_cdd *docTimeStamp )Validate (sig *_da .PdfSignature ,digest _da .Hasher )(_da .SignatureValidationResult ,error ){_bcd :=sig .Contents .Bytes ();_fce ,_fag :=_cg .Parse (_bcd );if _fag !=nil {return _da .SignatureValidationResult {},_fag ;};if _fag =_fce .Verify ();_fag !=nil {return _da .SignatureValidationResult {},_fag ;};var _fff timestampInfo ;_ ,_fag =_dd .Unmarshal (_fce .Content ,&_fff );if _fag !=nil {return _da .SignatureValidationResult {},_fag ;};_aee ,_fag :=_df (_fff .MessageImprint .HashAlgorithm .Algorithm );if _fag !=nil {return _da .SignatureValidationResult {},_fag ;};_fffd :=_aee .New ();_ggf :=digest .(*_ga .Buffer );_fffd .Write (_ggf .Bytes ());_gegd :=_fffd .Sum (nil );_bdd :=_da .SignatureValidationResult {IsSigned :true ,IsVerified :_ga .Equal (_gegd ,_fff .MessageImprint .HashedMessage ),GeneralizedTime :_fff .GeneralizedTime };return _bdd ,nil ;};
|
||||
|
||||
// InitSignature initialises the PdfSignature.
|
||||
func (_fcb *docTimeStamp )InitSignature (sig *_da .PdfSignature )error {_gdc :=*_fcb ;sig .Handler =&_gdc ;sig .Filter =_gf .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_gf .MakeName ("\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031");sig .Reference =nil ;if _fcb ._aad > 0{sig .Contents =_gf .MakeHexString (string (make ([]byte ,_fcb ._aad )));}else {_afad ,_gc :=_fcb .NewDigest (sig );if _gc !=nil {return _gc ;};_afad .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 _gc =_gdc .Sign (sig ,_afad );_gc !=nil {return _gc ;};_fcb ._aad =_gdc ._aad ;};return nil ;};
|
||||
|
||||
// IsApplicable returns true if the signature handler is applicable for the PdfSignature
|
||||
func (_bef *adobePKCS7Detached )IsApplicable (sig *_da .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 (_ccb *adobeX509RSASHA1 )sign (_ccg *_da .PdfSignature ,_bfg _da .Hasher ,_afe bool )error {if !_afe {return _ccb .Sign (_ccg ,_bfg );};_ead ,_eg :=_ccb ._bcg .PublicKey .(*_ge .PublicKey );if !_eg {return _b .Errorf ("i\u006e\u0076\u0061\u006c\u0069\u0064 \u0070\u0075\u0062\u006c\u0069\u0063\u0020\u006b\u0065y\u0020\u0074\u0079p\u0065:\u0020\u0025\u0054",_ead );};_db ,_bgc :=_dd .Marshal (make ([]byte ,_ead .Size ()));if _bgc !=nil {return _bgc ;};_ccg .Contents =_gf .MakeHexString (string (_db ));return 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 ;};
|
||||
@ -9,39 +9,22 @@
|
||||
// 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 (_c "bytes";_e "crypto";_ag "crypto/x509";_g "encoding/asn1";_ee "encoding/pem";_eg "errors";_b "fmt";_aee "github.com/unidoc/timestamp";_aa "github.com/unidoc/unipdf/v3/common";_cg "golang.org/x/crypto/ocsp";_ae "io";_egc "io/ioutil";_cd "net/http";_f "time";);
|
||||
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";);
|
||||
|
||||
// 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 (_db *CRLClient )MakeRequest (serverURL string ,cert *_ag .Certificate )([]byte ,error ){if _db .HTTPClient ==nil {_db .HTTPClient =_cdc ();};if serverURL ==""{if len (cert .CRLDistributionPoints )==0{return nil ,_eg .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];};_fb ,_dg :=_db .HTTPClient .Get (serverURL );if _dg !=nil {return nil ,_dg ;};defer _fb .Body .Close ();_gga ,_dg :=_egc .ReadAll (_fb .Body );if _dg !=nil {return nil ,_dg ;};if _agc ,_ :=_ee .Decode (_gga );_agc !=nil {_gga =_agc .Bytes ;};return _gga ,nil ;};
|
||||
|
||||
// NewTimestampRequest returns a new timestamp request based
|
||||
// on the specified options.
|
||||
func NewTimestampRequest (body _ae .Reader ,opts *_aee .RequestOptions )(*_aee .Request ,error ){if opts ==nil {opts =&_aee .RequestOptions {};};if opts .Hash ==0{opts .Hash =_e .SHA256 ;};if !opts .Hash .Available (){return nil ,_ag .ErrUnsupportedAlgorithm ;};_fc :=opts .Hash .New ();if _ ,_fcf :=_ae .Copy (_fc ,body );_fcf !=nil {return nil ,_fcf ;};return &_aee .Request {HashAlgorithm :opts .Hash ,HashedMessage :_fc .Sum (nil ),Certificates :opts .Certificates ,TSAPolicyOID :opts .TSAPolicyOID ,Nonce :opts .Nonce },nil ;};
|
||||
|
||||
// CertClient represents a X.509 certificate client. Its primary purpose
|
||||
// is to download certificates.
|
||||
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 *_cd .Client ;};
|
||||
|
||||
// Get retrieves the certificate at the specified URL.
|
||||
func (_gg *CertClient )Get (url string )(*_ag .Certificate ,error ){if _gg .HTTPClient ==nil {_gg .HTTPClient =_cdc ();};_ad ,_af :=_gg .HTTPClient .Get (url );if _af !=nil {return nil ,_af ;};defer _ad .Body .Close ();_ff ,_af :=_egc .ReadAll (_ad .Body );if _af !=nil {return nil ,_af ;};if _cf ,_ :=_ee .Decode (_ff );_cf !=nil {_ff =_cf .Bytes ;};_cga ,_af :=_ag .ParseCertificate (_ff );if _af !=nil {return nil ,_af ;};return _cga ,nil ;};
|
||||
// NewCertClient returns a new certificate client.
|
||||
func NewCertClient ()*CertClient {return &CertClient {HTTPClient :_ee ()}};
|
||||
|
||||
// GetEncodedToken executes the timestamp request and returns the DER encoded
|
||||
// timestamp token bytes.
|
||||
func (_aaae *TimestampClient )GetEncodedToken (serverURL string ,req *_aee .Request )([]byte ,error ){if serverURL ==""{return nil ,_b .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 ,_b .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");};_cc ,_bg :=req .Marshal ();if _bg !=nil {return nil ,_bg ;};_fed :=_aaae .HTTPClient ;if _fed ==nil {_fed =_cdc ();};_dc ,_bg :=_fed .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 (_cc ));if _bg !=nil {return nil ,_bg ;};defer _dc .Body .Close ();_ef ,_bg :=_egc .ReadAll (_dc .Body );if _bg !=nil {return nil ,_bg ;};if _dc .StatusCode !=_cd .StatusOK {return nil ,_b .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",_dc .StatusCode );};var _abf struct{Version _g .RawValue ;Content _g .RawValue ;};if _ ,_bg =_g .Unmarshal (_ef ,&_abf );_bg !=nil {return nil ,_bg ;};return _abf .Content .FullBytes ,nil ;};
|
||||
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 ;};
|
||||
|
||||
// NewOCSPClient returns a new OCSP client.
|
||||
func NewOCSPClient ()*OCSPClient {return &OCSPClient {HTTPClient :_cdc (),Hash :_e .SHA1 }};
|
||||
// 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 ;};
|
||||
|
||||
// NewCertClient returns a new certificate client.
|
||||
func NewCertClient ()*CertClient {return &CertClient {HTTPClient :_cdc ()}};
|
||||
|
||||
// NewCRLClient returns a new CRL client.
|
||||
func NewCRLClient ()*CRLClient {return &CRLClient {HTTPClient :_cdc ()}};
|
||||
// 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.
|
||||
@ -49,18 +32,7 @@ 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 *_cd .Client ;};
|
||||
|
||||
// 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 (_dba *OCSPClient )MakeRequest (serverURL string ,cert ,issuer *_ag .Certificate )(*_cg .Response ,[]byte ,error ){if _dba .HTTPClient ==nil {_dba .HTTPClient =_cdc ();};if serverURL ==""{if len (cert .OCSPServer )==0{return nil ,nil ,_eg .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];};_bcb ,_fge :=_cg .CreateRequest (cert ,issuer ,&_cg .RequestOptions {Hash :_dba .Hash });if _fge !=nil {return nil ,nil ,_fge ;};_ab ,_fge :=_dba .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 (_bcb ));if _fge !=nil {return nil ,nil ,_fge ;};defer _ab .Body .Close ();_aaa ,_fge :=_egc .ReadAll (_ab .Body );if _fge !=nil {return nil ,nil ,_fge ;};if _da ,_ :=_ee .Decode (_aaa );_da !=nil {_aaa =_da .Bytes ;};_ca ,_fge :=_cg .ParseResponseForCert (_aaa ,cert ,issuer );if _fge !=nil {return nil ,nil ,_fge ;};return _ca ,_aaa ,nil ;};
|
||||
|
||||
// NewTimestampClient returns a new timestamp client.
|
||||
func NewTimestampClient ()*TimestampClient {return &TimestampClient {HTTPClient :_cdc ()}};
|
||||
|
||||
// IsCA returns true if the provided certificate appears to be a CA certificate.
|
||||
func (_ed *CertClient )IsCA (cert *_ag .Certificate )bool {return cert .IsCA &&_c .Equal (cert .RawIssuer ,cert .RawSubject );};func _cdc ()*_cd .Client {return &_cd .Client {Timeout :5*_f .Second }};
|
||||
HTTPClient *_d .Client ;};
|
||||
|
||||
// OCSPClient represents a OCSP (Online Certificate Status Protocol) client.
|
||||
// It is used to request revocation data from OCSP servers.
|
||||
@ -68,11 +40,42 @@ 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 *_cd .Client ;
|
||||
HTTPClient *_d .Client ;
|
||||
|
||||
// Hash is the hash function used when constructing the OCSP
|
||||
// requests. If zero, SHA-1 will be used.
|
||||
Hash _e .Hash ;};
|
||||
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 );};
|
||||
|
||||
// CertClient represents a X.509 certificate client. Its primary purpose
|
||||
// is to download certificates.
|
||||
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 }};
|
||||
|
||||
// CRLClient represents a CRL (Certificate revocation list) client.
|
||||
// It is used to request revocation data from CRL servers.
|
||||
@ -80,7 +83,4 @@ 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 *_cd .Client ;};
|
||||
|
||||
// GetIssuer retrieves the issuer of the provided certificate.
|
||||
func (_bf *CertClient )GetIssuer (cert *_ag .Certificate )(*_ag .Certificate ,error ){for _ ,_bc :=range cert .IssuingCertificateURL {_d ,_fg :=_bf .Get (_bc );if _fg !=nil {_aa .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 ,_fg );continue ;};return _d ,nil ;};return nil ,_b .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");};
|
||||
HTTPClient *_d .Client ;};
|
||||
@ -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 (_a "github.com/unidoc/unipdf/v3/common";_d "github.com/unidoc/unipdf/v3/contentstream";_ag "github.com/unidoc/unipdf/v3/contentstream/draw";_f "github.com/unidoc/unipdf/v3/core";_e "github.com/unidoc/unipdf/v3/model";);
|
||||
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";);
|
||||
|
||||
// NormalizePage performs the following operations on the passed in page:
|
||||
// - Normalize the page rotation.
|
||||
@ -26,4 +26,4 @@ package pdfutil ;import (_a "github.com/unidoc/unipdf/v3/common";_d "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 *_e .PdfPage )error {_ef ,_ad :=page .GetMediaBox ();if _ad !=nil {return _ad ;};_g :=page .Rotate ;_agf :=_g !=nil &&*_g %360!=0&&*_g %90==0;_ef .Normalize ();_gb ,_gf ,_gbb ,_ga :=_ef .Llx ,_ef .Lly ,_ef .Width (),_ef .Height ();_ab :=_gb !=0||_gf !=0;if !_agf &&!_ab {return nil ;};_be :=func (_eb ,_bb ,_ea float64 )_ag .BoundingBox {return _ag .Path {Points :[]_ag .Point {_ag .NewPoint (0,0).Rotate (_ea ),_ag .NewPoint (_eb ,0).Rotate (_ea ),_ag .NewPoint (0,_bb ).Rotate (_ea ),_ag .NewPoint (_eb ,_bb ).Rotate (_ea )}}.GetBoundingBox ();};_ge :=_d .NewContentCreator ();var _c float64 ;if _agf {_c =-float64 (*page .Rotate );_dd :=_be (_gbb ,_ga ,_c );_ge .Translate ((_dd .Width -_gbb )/2+_gbb /2,(_dd .Height -_ga )/2+_ga /2);_ge .RotateDeg (_c );_ge .Translate (-_gbb /2,-_ga /2);_gbb ,_ga =_dd .Width ,_dd .Height ;};if _ab {_ge .Translate (-_gb ,-_gf );};_ed :=_ge .Operations ();_da ,_ad :=_f .MakeStream (_ed .Bytes (),_f .NewFlateEncoder ());if _ad !=nil {return _ad ;};_age :=_f .MakeArray (_da );_age .Append (page .GetContentStreamObjs ()...);*_ef =_e .PdfRectangle {Urx :_gbb ,Ury :_ga };if _fg :=page .CropBox ;_fg !=nil {_fg .Normalize ();_ebd ,_af ,_eac ,_fc :=_fg .Llx -_gb ,_fg .Lly -_gf ,_fg .Width (),_fg .Height ();if _agf {_agg :=_be (_eac ,_fc ,_c );_eac ,_fc =_agg .Width ,_agg .Height ;};*_fg =_e .PdfRectangle {Llx :_ebd ,Lly :_af ,Urx :_ebd +_eac ,Ury :_af +_fc };};_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",_c ,_ed ,_ef );page .Contents =_age ;page .Rotate =nil ;return nil ;};
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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 ;};
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Reference in New Issue
Block a user