171 lines
5.4 KiB
PHP
171 lines
5.4 KiB
PHP
<?php
|
|
//
|
|
// FPDI - Version 1.3.1
|
|
//
|
|
// Copyright 2004-2009 Setasign - Jan Slabon
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
|
|
/**
|
|
* This class is used as a bridge between TCPDF and FPDI
|
|
* and will create the possibility to use both FPDF and TCPDF
|
|
* via one FPDI version.
|
|
*
|
|
* We'll simply remap TCPDF to FPDF again.
|
|
*
|
|
* It'll be loaded and extended by FPDF_TPL.
|
|
*/
|
|
class FPDF extends TCPDF {
|
|
|
|
function __get($name) {
|
|
switch ($name) {
|
|
case 'PDFVersion':
|
|
return $this->PDFVersion;
|
|
case 'k':
|
|
return $this->k;
|
|
default:
|
|
// Error handling
|
|
$this->Error('Cannot access protected property '.get_class($this).':$'.$name.' / Undefined property: '.get_class($this).'::$'.$name);
|
|
}
|
|
}
|
|
|
|
function __set($name, $value) {
|
|
switch ($name) {
|
|
case 'PDFVersion':
|
|
$this->PDFVersion = $value;
|
|
break;
|
|
default:
|
|
// Error handling
|
|
$this->Error('Cannot access protected property '.get_class($this).':$'.$name.' / Undefined property: '.get_class($this).'::$'.$name);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Encryption of imported data by FPDI
|
|
*
|
|
* @param array $value
|
|
*/
|
|
function pdf_write_value(&$value) {
|
|
switch ($value[0]) {
|
|
case PDF_TYPE_STRING :
|
|
if ($this->encrypted) {
|
|
$value[1] = $this->_unescape($value[1]);
|
|
$value[1] = $this->_RC4($this->_objectkey($this->_current_obj_id), $value[1]);
|
|
$value[1] = $this->_escape($value[1]);
|
|
}
|
|
break;
|
|
|
|
case PDF_TYPE_STREAM :
|
|
if ($this->encrypted) {
|
|
$value[2][1] = $this->_RC4($this->_objectkey($this->_current_obj_id), $value[2][1]);
|
|
}
|
|
break;
|
|
|
|
case PDF_TYPE_HEX :
|
|
if ($this->encrypted) {
|
|
$value[1] = $this->hex2str($value[1]);
|
|
$value[1] = $this->_RC4($this->_objectkey($this->_current_obj_id), $value[1]);
|
|
|
|
// remake hexstring of encrypted string
|
|
$value[1] = $this->str2hex($value[1]);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Unescapes a PDF string
|
|
*
|
|
* @param string $s
|
|
* @return string
|
|
*/
|
|
function _unescape($s) {
|
|
$out = '';
|
|
for ($count = 0, $n = strlen($s); $count < $n; $count++) {
|
|
if ($s[$count] != '\\' || $count == $n-1) {
|
|
$out .= $s[$count];
|
|
} else {
|
|
switch ($s[++$count]) {
|
|
case ')':
|
|
case '(':
|
|
case '\\':
|
|
$out .= $s[$count];
|
|
break;
|
|
case 'f':
|
|
$out .= chr(0x0C);
|
|
break;
|
|
case 'b':
|
|
$out .= chr(0x08);
|
|
break;
|
|
case 't':
|
|
$out .= chr(0x09);
|
|
break;
|
|
case 'r':
|
|
$out .= chr(0x0D);
|
|
break;
|
|
case 'n':
|
|
$out .= chr(0x0A);
|
|
break;
|
|
case "\r":
|
|
if ($count != $n-1 && $s[$count+1] == "\n")
|
|
$count++;
|
|
break;
|
|
case "\n":
|
|
break;
|
|
default:
|
|
// Octal-Values
|
|
if (ord($s[$count]) >= ord('0') &&
|
|
ord($s[$count]) <= ord('9')) {
|
|
$oct = ''. $s[$count];
|
|
|
|
if (ord($s[$count+1]) >= ord('0') &&
|
|
ord($s[$count+1]) <= ord('9')) {
|
|
$oct .= $s[++$count];
|
|
|
|
if (ord($s[$count+1]) >= ord('0') &&
|
|
ord($s[$count+1]) <= ord('9')) {
|
|
$oct .= $s[++$count];
|
|
}
|
|
}
|
|
|
|
$out .= chr(octdec($oct));
|
|
} else {
|
|
$out .= $s[$count];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return $out;
|
|
}
|
|
|
|
/**
|
|
* Hexadecimal to string
|
|
*
|
|
* @param string $hex
|
|
* @return string
|
|
*/
|
|
function hex2str($hex) {
|
|
return pack('H*', str_replace(array("\r", "\n", ' '), '', $hex));
|
|
}
|
|
|
|
/**
|
|
* String to hexadecimal
|
|
*
|
|
* @param string $str
|
|
* @return string
|
|
*/
|
|
function str2hex($str) {
|
|
return current(unpack('H*', $str));
|
|
}
|
|
} |