702 lines
22 KiB
PHP
702 lines
22 KiB
PHP
<?php
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//
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// TCPDI - Version 1.0
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// Based on FPDI - Version 1.4.4
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//
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// Copyright 2004-2013 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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// https://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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// Dummy shim to allow unmodified use of fpdf_tpl
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class FPDF extends TCPDF {}
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require_once('fpdf_tpl.php');
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require_once('tcpdi_parser.php');
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class TCPDI extends FPDF_TPL {
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/**
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* Actual filename
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* @var string
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*/
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var $current_filename;
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/**
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* Parser-Objects
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* @var array
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*/
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var $parsers;
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/**
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* Current parser
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* @var object
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*/
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var $current_parser;
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/**
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* object stack
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* @var array
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*/
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var $_obj_stack;
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/**
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* done object stack
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* @var array
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*/
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var $_don_obj_stack;
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/**
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* Current Object Id.
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* @var integer
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*/
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var $_current_obj_id;
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/**
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* The name of the last imported page box
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* @var string
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*/
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var $lastUsedPageBox;
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/**
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* Cache for imported pages/template ids
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* @var array
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*/
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var $_importedPages = array();
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/**
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* Set a source-file
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*
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* @param string $filename a valid filename
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* @return int number of available pages
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*/
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function setSourceFile($filename) {
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$this->current_filename = $filename;
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if (!isset($this->parsers[$filename]))
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$this->parsers[$filename] = $this->_getPdfParser($filename);
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$this->current_parser =& $this->parsers[$filename];
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$this->setPDFVersion(max($this->getPDFVersion(), $this->current_parser->getPDFVersion()));
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return $this->parsers[$filename]->getPageCount();
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}
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/**
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* Set a source-file PDF data
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*
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* @param string $pdfdata The PDF file content
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* @return int number of available pages
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*/
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function setSourceData($pdfdata) {
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$filename = uniqid('tcpdi-');
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$this->current_filename = $filename;
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if (!isset($this->parsers[$filename]))
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$this->parsers[$filename] = new tcpdi_parser($pdfdata, $filename);
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$this->current_parser =& $this->parsers[$filename];
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$this->setPDFVersion(max($this->getPDFVersion(), $this->current_parser->getPDFVersion()));
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return $this->parsers[$filename]->getPageCount();
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}
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/**
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* Returns a PDF parser object
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*
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* @param string $filename
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* @return fpdi_pdf_parser
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*/
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function _getPdfParser($filename) {
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$data = file_get_contents($filename);
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return new tcpdi_parser($data, $filename);
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}
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/**
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* Get the current PDF version
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*
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* @return string
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*/
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function getPDFVersion() {
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return $this->PDFVersion;
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}
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/**
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* Set the PDF version
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*
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* @return string
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*/
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function setPDFVersion($version = '1.7') {
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$this->PDFVersion = $version;
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}
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/**
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* Import a page
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*
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* @param int $pageno pagenumber
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* @return int Index of imported page - to use with fpdf_tpl::useTemplate()
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*/
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function importPage($pageno, $boxName = '/CropBox') {
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if ($this->_intpl) {
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return $this->error('Please import the desired pages before creating a new template.');
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}
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$fn = $this->current_filename;
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// check if page already imported
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$pageKey = $fn . '-' . ((int)$pageno) . $boxName;
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if (isset($this->_importedPages[$pageKey]))
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return $this->_importedPages[$pageKey];
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$parser =& $this->parsers[$fn];
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$parser->setPageno($pageno);
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if (!in_array($boxName, $parser->availableBoxes))
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return $this->Error(sprintf('Unknown box: %s', $boxName));
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$pageboxes = $parser->getPageBoxes($pageno, $this->k);
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/**
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* MediaBox
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* CropBox: Default -> MediaBox
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* BleedBox: Default -> CropBox
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* TrimBox: Default -> CropBox
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* ArtBox: Default -> CropBox
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*/
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if (!isset($pageboxes[$boxName]) && ($boxName == '/BleedBox' || $boxName == '/TrimBox' || $boxName == '/ArtBox'))
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$boxName = '/CropBox';
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if (!isset($pageboxes[$boxName]) && $boxName == '/CropBox')
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$boxName = '/MediaBox';
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if (!isset($pageboxes[$boxName]))
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return false;
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$this->lastUsedPageBox = $boxName;
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$box = $pageboxes[$boxName];
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$this->tpl++;
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$this->tpls[$this->tpl] = array();
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$tpl =& $this->tpls[$this->tpl];
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$tpl['parser'] =& $parser;
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$tpl['resources'] = $parser->getPageResources();
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$tpl['buffer'] = $parser->getContent();
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$tpl['box'] = $box;
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// To build an array that can be used by PDF_TPL::useTemplate()
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$this->tpls[$this->tpl] = array_merge($this->tpls[$this->tpl], $box);
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// An imported page will start at 0,0 everytime. Translation will be set in _putformxobjects()
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$tpl['x'] = 0;
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$tpl['y'] = 0;
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// handle rotated pages
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$rotation = $parser->getPageRotation($pageno);
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$tpl['_rotationAngle'] = 0;
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if (isset($rotation[1]) && ($angle = $rotation[1] % 360) != 0) {
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$steps = $angle / 90;
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$_w = $tpl['w'];
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$_h = $tpl['h'];
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$tpl['w'] = $steps % 2 == 0 ? $_w : $_h;
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$tpl['h'] = $steps % 2 == 0 ? $_h : $_w;
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if ($angle < 0)
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$angle += 360;
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$tpl['_rotationAngle'] = $angle * -1;
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}
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$this->_importedPages[$pageKey] = $this->tpl;
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return $this->tpl;
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}
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/**
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* Returns the last used page box
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*
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* @return string
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*/
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function getLastUsedPageBox() {
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return $this->lastUsedPageBox;
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}
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function useTemplate($tplidx, $_x = null, $_y = null, $_w = 0, $_h = 0, $adjustPageSize = false) {
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if ($adjustPageSize == true && is_null($_x) && is_null($_y)) {
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$size = $this->getTemplateSize($tplidx, $_w, $_h);
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$orientation = $size['w'] > $size['h'] ? 'L' : 'P';
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$size = array($size['w'], $size['h']);
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$this->setPageFormat($size, $orientation);
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}
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$this->_out('q 0 J 1 w 0 j 0 G 0 g'); // reset standard values
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$s = parent::useTemplate($tplidx, $_x, $_y, $_w, $_h);
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$this->_out('Q');
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return $s;
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}
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/**
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* Private method, that rebuilds all needed objects of source files
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*/
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function _putimportedobjects() {
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if (is_array($this->parsers) && count($this->parsers) > 0) {
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foreach($this->parsers AS $filename => $p) {
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$this->current_parser =& $this->parsers[$filename];
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if (isset($this->_obj_stack[$filename]) && is_array($this->_obj_stack[$filename])) {
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while(($n = key($this->_obj_stack[$filename])) !== null) {
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$nObj = $this->current_parser->getObjectVal($this->_obj_stack[$filename][$n][1]);
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$this->_newobj($this->_obj_stack[$filename][$n][0]);
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if ($nObj[0] == PDF_TYPE_STREAM) {
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$this->pdf_write_value($nObj);
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} else {
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$this->pdf_write_value($nObj[1]);
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}
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$this->_out('endobj');
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$this->_obj_stack[$filename][$n] = null; // free memory
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unset($this->_obj_stack[$filename][$n]);
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reset($this->_obj_stack[$filename]);
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}
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}
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// We're done with this parser. Clean it up to free a bit of RAM.
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$this->current_parser->cleanUp();
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unset($this->parsers[$filename]);
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}
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}
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}
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/**
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* Private Method that writes the form xobjects
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*/
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function _putformxobjects() {
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$filter=($this->compress) ? '/Filter /FlateDecode ' : '';
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reset($this->tpls);
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foreach($this->tpls AS $tplidx => $tpl) {
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$p=($this->compress) ? gzcompress($tpl['buffer']) : $tpl['buffer'];
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$this->_newobj();
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$cN = $this->n; // TCPDF/Protection: rem current "n"
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$this->tpls[$tplidx]['n'] = $this->n;
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$this->_out('<<' . $filter . '/Type /XObject');
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$this->_out('/Subtype /Form');
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$this->_out('/FormType 1');
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$this->_out(sprintf('/BBox [%.2F %.2F %.2F %.2F]',
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(isset($tpl['box']['llx']) ? $tpl['box']['llx'] : $tpl['x']) * $this->k,
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(isset($tpl['box']['lly']) ? $tpl['box']['lly'] : -$tpl['y']) * $this->k,
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(isset($tpl['box']['urx']) ? $tpl['box']['urx'] : $tpl['w'] + $tpl['x']) * $this->k,
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(isset($tpl['box']['ury']) ? $tpl['box']['ury'] : $tpl['h'] - $tpl['y']) * $this->k
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));
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$c = 1;
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$s = 0;
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$tx = 0;
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$ty = 0;
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if (isset($tpl['box'])) {
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$tx = -$tpl['box']['llx'];
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$ty = -$tpl['box']['lly'];
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if ($tpl['_rotationAngle'] <> 0) {
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$angle = $tpl['_rotationAngle'] * M_PI/180;
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$c=cos($angle);
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$s=sin($angle);
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switch($tpl['_rotationAngle']) {
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case -90:
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$tx = -$tpl['box']['lly'];
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$ty = $tpl['box']['urx'];
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break;
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case -180:
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$tx = $tpl['box']['urx'];
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$ty = $tpl['box']['ury'];
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break;
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case -270:
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$tx = $tpl['box']['ury'];
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$ty = -$tpl['box']['llx'];
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break;
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}
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}
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} elseif (!empty($tpl['x']) || !empty($tpl['y'])) {
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$tx = -$tpl['x'] * 2;
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$ty = $tpl['y'] * 2;
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}
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$tx *= $this->k;
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$ty *= $this->k;
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if ($c != 1 || $s != 0 || $tx != 0 || $ty != 0) {
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$this->_out(sprintf('/Matrix [%.5F %.5F %.5F %.5F %.5F %.5F]',
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$c, $s, -$s, $c, $tx, $ty
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));
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}
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$this->_out('/Resources ');
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if (isset($tpl['resources'])) {
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$this->current_parser =& $tpl['parser'];
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$this->pdf_write_value($tpl['resources']); // "n" will be changed
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} else {
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$this->_out('<</ProcSet [/PDF /Text /ImageB /ImageC /ImageI]');
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if (isset($this->_res['tpl'][$tplidx]['fonts']) && count($this->_res['tpl'][$tplidx]['fonts'])) {
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$this->_out('/Font <<');
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foreach($this->_res['tpl'][$tplidx]['fonts'] as $font)
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$this->_out('/F' . $font['i'] . ' ' . $font['n'] . ' 0 R');
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$this->_out('>>');
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}
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if(isset($this->_res['tpl'][$tplidx]['images']) && count($this->_res['tpl'][$tplidx]['images']) ||
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isset($this->_res['tpl'][$tplidx]['tpls']) && count($this->_res['tpl'][$tplidx]['tpls']))
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{
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$this->_out('/XObject <<');
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if (isset($this->_res['tpl'][$tplidx]['images']) && count($this->_res['tpl'][$tplidx]['images'])) {
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foreach($this->_res['tpl'][$tplidx]['images'] as $image)
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$this->_out('/I' . $image['i'] . ' ' . $image['n'] . ' 0 R');
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}
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if (isset($this->_res['tpl'][$tplidx]['tpls']) && count($this->_res['tpl'][$tplidx]['tpls'])) {
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foreach($this->_res['tpl'][$tplidx]['tpls'] as $i => $tpl)
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$this->_out($this->tplprefix . $i . ' ' . $tpl['n'] . ' 0 R');
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}
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$this->_out('>>');
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}
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$this->_out('>>');
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}
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$this->_out('/Group <</Type/Group/S/Transparency>>');
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$nN = $this->n; // TCPDF: rem new "n"
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$this->n = $cN; // TCPDF: reset to current "n"
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$p = $this->_getrawstream($p);
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$this->_out('/Length ' . strlen($p) . ' >>');
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$this->_out("stream\n" . $p . "\nendstream");
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$this->_out('endobj');
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$this->n = $nN; // TCPDF: reset to new "n"
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}
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$this->_putimportedobjects();
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}
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/**
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* Rewritten to handle existing own defined objects
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*/
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function _newobj($obj_id = false, $onlynewobj = false) {
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if (!$obj_id) {
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$obj_id = ++$this->n;
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}
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//Begin a new object
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if (!$onlynewobj) {
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$this->offsets[$obj_id] = $this->bufferlen;
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$this->_out($obj_id . ' 0 obj');
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$this->_current_obj_id = $obj_id; // for later use with encryption
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}
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return $obj_id;
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}
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/**
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* Writes a value
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* Needed to rebuild the source document
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*
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* @param mixed $value A PDF-Value. Structure of values see cases in this method
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*/
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function pdf_write_value(&$value)
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{
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switch ($value[0]) {
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case PDF_TYPE_STRING:
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if ($this->encrypted) {
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$value[1] = $this->_unescape($value[1]);
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$value[1] = $this->_encrypt_data($this->_current_obj_id, $value[1]);
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$value[1] = TCPDF_STATIC::_escape($value[1]);
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}
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break;
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case PDF_TYPE_STREAM:
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if ($this->encrypted) {
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$value[2][1] = $this->_encrypt_data($this->_current_obj_id, $value[2][1]);
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$value[1][1]['/Length'] = array(
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PDF_TYPE_NUMERIC,
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strlen($value[2][1])
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);
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}
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break;
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case PDF_TYPE_HEX:
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if ($this->encrypted) {
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$value[1] = $this->hex2str($value[1]);
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$value[1] = $this->_encrypt_data($this->_current_obj_id, $value[1]);
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// remake hexstring of encrypted string
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$value[1] = $this->str2hex($value[1]);
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}
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break;
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}
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switch ($value[0]) {
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case PDF_TYPE_TOKEN:
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$this->_straightOut('/'.$value[1] . ' ');
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break;
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case PDF_TYPE_NUMERIC:
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case PDF_TYPE_REAL:
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if (is_float($value[1]) && $value[1] != 0) {
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$this->_straightOut(rtrim(rtrim(sprintf('%F', $value[1]), '0'), '.') . ' ');
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} else {
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$this->_straightOut($value[1] . ' ');
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}
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break;
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case PDF_TYPE_ARRAY:
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// An array. Output the proper
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// structure and move on.
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$this->_straightOut('[');
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for ($i = 0; $i < count($value[1]); $i++) {
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$this->pdf_write_value($value[1][$i]);
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}
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$this->_out(']');
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break;
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case PDF_TYPE_DICTIONARY:
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// A dictionary.
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$this->_straightOut('<<');
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reset ($value[1]);
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foreach ($value[1] as $k => $v) {
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$this->_straightOut($k . ' ');
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$this->pdf_write_value($v);
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}
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$this->_straightOut('>>');
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break;
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case PDF_TYPE_OBJREF:
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// An indirect object reference
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// Fill the object stack if needed
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$cpfn =& $this->current_parser->uniqueid;
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if (!isset($this->_don_obj_stack[$cpfn][$value[1]])) {
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$this->_newobj(false, true);
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$this->_obj_stack[$cpfn][$value[1]] = array($this->n, $value);
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$this->_don_obj_stack[$cpfn][$value[1]] = array($this->n, $value); // Value is maybee obsolete!!!
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}
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$objid = $this->_don_obj_stack[$cpfn][$value[1]][0];
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$this->_out($objid . ' 0 R');
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break;
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case PDF_TYPE_STRING:
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// A string.
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$this->_straightOut('(' . $value[1] . ')');
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break;
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case PDF_TYPE_STREAM:
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// A stream. First, output the
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// stream dictionary, then the
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|
// stream data itself.
|
|
$this->pdf_write_value($value[1]);
|
|
$this->_out('stream');
|
|
$this->_out($value[2][1]);
|
|
$this->_out('endstream');
|
|
break;
|
|
|
|
case PDF_TYPE_HEX:
|
|
$this->_straightOut('<' . $value[1] . '>');
|
|
break;
|
|
|
|
case PDF_TYPE_BOOLEAN:
|
|
$this->_straightOut($value[1] ? 'true ' : 'false ');
|
|
break;
|
|
|
|
case PDF_TYPE_NULL:
|
|
// The null object.
|
|
|
|
$this->_straightOut('null ');
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Modified so not each call will add a newline to the output.
|
|
*/
|
|
function _straightOut($s) {
|
|
if ($this->state == 2) {
|
|
if ($this->inxobj) {
|
|
// we are inside an XObject template
|
|
$this->xobjects[$this->xobjid]['outdata'] .= $s;
|
|
} elseif ((!$this->InFooter) AND isset($this->footerlen[$this->page]) AND ($this->footerlen[$this->page] > 0)) {
|
|
// puts data before page footer
|
|
$pagebuff = $this->getPageBuffer($this->page);
|
|
$page = substr($pagebuff, 0, -$this->footerlen[$this->page]);
|
|
$footer = substr($pagebuff, -$this->footerlen[$this->page]);
|
|
$this->setPageBuffer($this->page, $page.$s.$footer);
|
|
// update footer position
|
|
$this->footerpos[$this->page] += strlen($s);
|
|
} else {
|
|
// set page data
|
|
$this->setPageBuffer($this->page, $s, true);
|
|
}
|
|
} elseif ($this->state > 0) {
|
|
// set general data
|
|
$this->setBuffer($s);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* rewritten to close opened parsers
|
|
*
|
|
*/
|
|
function _enddoc() {
|
|
parent::_enddoc();
|
|
$this->_closeParsers();
|
|
}
|
|
|
|
/**
|
|
* close all files opened by parsers
|
|
*/
|
|
function _closeParsers() {
|
|
if ($this->state > 2 && is_array($this->parsers) && count($this->parsers) > 0) {
|
|
$this->cleanUp();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Removes cylced references and closes the file handles of the parser objects
|
|
*/
|
|
function cleanUp() {
|
|
foreach ($this->parsers as $k => $_){
|
|
$this->parsers[$k]->cleanUp();
|
|
$this->parsers[$k] = null;
|
|
unset($this->parsers[$k]);
|
|
}
|
|
}
|
|
|
|
// Functions from here on are taken from FPDI's fpdi2tcpdf_bridge.php to remove dependence on it
|
|
function _putstream($s, $n=0) {
|
|
$this->_out($this->_getstream($s, $n));
|
|
}
|
|
|
|
function _getxobjectdict() {
|
|
$out = parent::_getxobjectdict();
|
|
if (count($this->tpls)) {
|
|
foreach($this->tpls as $tplidx => $tpl) {
|
|
$out .= sprintf('%s%d %d 0 R', $this->tplprefix, $tplidx, $tpl['n']);
|
|
}
|
|
}
|
|
|
|
return $out;
|
|
}
|
|
|
|
/**
|
|
* 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));
|
|
}
|
|
}
|