Fax Server: Misc enhancements, including multilingual and customizable cover page generation, fax resolution selection, etc. More to come.
FPDI and TCPDF libraries added to accommodate the above, and future enhancements.
This commit is contained in:
Nate Jones
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<?php
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//
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// FPDI - Version 1.5.2
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//
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// Copyright 2004-2014 Setasign - Jan Slabon
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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/**
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* This file is used as a bridge between TCPDF or FPDF
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* It will dynamically create the class extending the available
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* class FPDF or TCPDF.
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*
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* This way it is possible to use FPDI for both FPDF and TCPDF with one FPDI version.
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*/
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if (!class_exists('TCPDF', false)) {
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/**
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* Class fpdi_bridge
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*/
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class fpdi_bridge extends FPDF
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{
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// empty body
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}
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} else {
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/**
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* Class fpdi_bridge
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*/
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class fpdi_bridge extends TCPDF
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{
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/**
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* Array of Tpl-Data
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*
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* @var array
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*/
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protected $_tpls = array();
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/**
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* Name-prefix of Templates used in Resources-Dictionary
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*
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* @var string A String defining the Prefix used as Template-Object-Names. Have to begin with an /
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*/
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public $tplPrefix = "/TPL";
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/**
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* Current Object Id.
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*
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* @var integer
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*/
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protected $_currentObjId;
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/**
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* Return XObjects Dictionary.
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*
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* Overwritten to add additional XObjects to the resources dictionary of TCPDF
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*
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* @return string
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*/
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protected function _getxobjectdict()
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{
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$out = parent::_getxobjectdict();
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foreach ($this->_tpls as $tplIdx => $tpl) {
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$out .= sprintf('%s%d %d 0 R', $this->tplPrefix, $tplIdx, $tpl['n']);
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}
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return $out;
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}
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/**
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* Writes a PDF value to the resulting document.
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*
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* Prepares the value for encryption of imported data by FPDI
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*
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* @param array $value
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*/
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protected function _prepareValue(&$value)
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{
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switch ($value[0]) {
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case pdf_parser::TYPE_STRING:
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if ($this->encrypted) {
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$value[1] = $this->_unescape($value[1]);
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$value[1] = $this->_encrypt_data($this->_currentObjId, $value[1]);
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$value[1] = TCPDF_STATIC::_escape($value[1]);
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}
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break;
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case pdf_parser::TYPE_STREAM:
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if ($this->encrypted) {
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$value[2][1] = $this->_encrypt_data($this->_currentObjId, $value[2][1]);
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$value[1][1]['/Length'] = array(
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pdf_parser::TYPE_NUMERIC,
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strlen($value[2][1])
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);
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}
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break;
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case pdf_parser::TYPE_HEX:
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if ($this->encrypted) {
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$value[1] = $this->hex2str($value[1]);
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$value[1] = $this->_encrypt_data($this->_currentObjId, $value[1]);
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// remake hexstring of encrypted string
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$value[1] = $this->str2hex($value[1]);
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}
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break;
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}
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}
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/**
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* Un-escapes a PDF string
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*
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* @param string $s
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* @return string
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*/
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protected function _unescape($s)
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{
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$out = '';
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for ($count = 0, $n = strlen($s); $count < $n; $count++) {
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if ($s[$count] != '\\' || $count == $n-1) {
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$out .= $s[$count];
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} else {
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switch ($s[++$count]) {
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case ')':
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case '(':
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case '\\':
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$out .= $s[$count];
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break;
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case 'f':
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$out .= chr(0x0C);
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break;
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case 'b':
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$out .= chr(0x08);
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break;
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case 't':
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$out .= chr(0x09);
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break;
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case 'r':
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$out .= chr(0x0D);
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break;
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case 'n':
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$out .= chr(0x0A);
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break;
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case "\r":
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if ($count != $n-1 && $s[$count+1] == "\n")
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$count++;
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break;
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case "\n":
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break;
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default:
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// Octal-Values
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if (ord($s[$count]) >= ord('0') &&
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ord($s[$count]) <= ord('9')) {
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$oct = ''. $s[$count];
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if (ord($s[$count+1]) >= ord('0') &&
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ord($s[$count+1]) <= ord('9')) {
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$oct .= $s[++$count];
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if (ord($s[$count+1]) >= ord('0') &&
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ord($s[$count+1]) <= ord('9')) {
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$oct .= $s[++$count];
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}
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}
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$out .= chr(octdec($oct));
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} else {
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$out .= $s[$count];
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}
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}
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}
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}
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return $out;
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}
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/**
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* Hexadecimal to string
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*
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* @param string $data
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* @return string
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*/
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public function hex2str($data)
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{
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$data = preg_replace('/[^0-9A-Fa-f]/', '', rtrim($data, '>'));
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if ((strlen($data) % 2) == 1) {
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$data .= '0';
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}
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return pack('H*', $data);
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}
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/**
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* String to hexadecimal
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*
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* @param string $str
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* @return string
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*/
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public function str2hex($str)
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{
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return current(unpack('H*', $str));
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}
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}
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}
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