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549 lines
21 KiB
549 lines
21 KiB
<?php
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if (!defined('PHPEXCEL_ROOT')) {
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/**
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* @ignore
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*/
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define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
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require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
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}
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/**
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* PHPExcel_Reader_HTML
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*
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* Copyright (c) 2006 - 2015 PHPExcel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* @category PHPExcel
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* @package PHPExcel_Reader
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* @copyright Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
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* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
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* @version ##VERSION##, ##DATE##
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*/
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/** PHPExcel root directory */
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class PHPExcel_Reader_HTML extends PHPExcel_Reader_Abstract implements PHPExcel_Reader_IReader
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{
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/**
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* Input encoding
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*
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* @var string
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*/
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protected $inputEncoding = 'ANSI';
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/**
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* Sheet index to read
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*
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* @var int
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*/
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protected $sheetIndex = 0;
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/**
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* Formats
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*
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* @var array
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*/
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protected $formats = array(
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'h1' => array(
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'font' => array(
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'bold' => true,
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'size' => 24,
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),
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), // Bold, 24pt
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'h2' => array(
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'font' => array(
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'bold' => true,
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'size' => 18,
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),
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), // Bold, 18pt
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'h3' => array(
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'font' => array(
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'bold' => true,
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'size' => 13.5,
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),
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), // Bold, 13.5pt
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'h4' => array(
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'font' => array(
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'bold' => true,
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'size' => 12,
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),
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), // Bold, 12pt
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'h5' => array(
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'font' => array(
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'bold' => true,
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'size' => 10,
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),
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), // Bold, 10pt
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'h6' => array(
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'font' => array(
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'bold' => true,
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'size' => 7.5,
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),
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), // Bold, 7.5pt
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'a' => array(
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'font' => array(
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'underline' => true,
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'color' => array(
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'argb' => PHPExcel_Style_Color::COLOR_BLUE,
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),
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),
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), // Blue underlined
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'hr' => array(
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'borders' => array(
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'bottom' => array(
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'style' => PHPExcel_Style_Border::BORDER_THIN,
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'color' => array(
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PHPExcel_Style_Color::COLOR_BLACK,
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),
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),
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),
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), // Bottom border
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);
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protected $rowspan = array();
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/**
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* Create a new PHPExcel_Reader_HTML
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*/
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public function __construct()
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{
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$this->readFilter = new PHPExcel_Reader_DefaultReadFilter();
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}
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/**
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* Validate that the current file is an HTML file
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*
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* @return boolean
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*/
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protected function isValidFormat()
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{
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// Reading 2048 bytes should be enough to validate that the format is HTML
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$data = fread($this->fileHandle, 2048);
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if ((strpos($data, '<') !== false) &&
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(strlen($data) !== strlen(strip_tags($data)))) {
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return true;
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}
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return false;
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}
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/**
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* Loads PHPExcel from file
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*
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* @param string $pFilename
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* @return PHPExcel
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* @throws PHPExcel_Reader_Exception
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*/
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public function load($pFilename)
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{
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// Create new PHPExcel
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$objPHPExcel = new PHPExcel();
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// Load into this instance
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return $this->loadIntoExisting($pFilename, $objPHPExcel);
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}
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/**
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* Set input encoding
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*
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* @param string $pValue Input encoding
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*/
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public function setInputEncoding($pValue = 'ANSI')
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{
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$this->inputEncoding = $pValue;
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return $this;
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}
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/**
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* Get input encoding
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*
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* @return string
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*/
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public function getInputEncoding()
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{
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return $this->inputEncoding;
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}
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// Data Array used for testing only, should write to PHPExcel object on completion of tests
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protected $dataArray = array();
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protected $tableLevel = 0;
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protected $nestedColumn = array('A');
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protected function setTableStartColumn($column)
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{
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if ($this->tableLevel == 0) {
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$column = 'A';
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}
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++$this->tableLevel;
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$this->nestedColumn[$this->tableLevel] = $column;
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return $this->nestedColumn[$this->tableLevel];
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}
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protected function getTableStartColumn()
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{
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return $this->nestedColumn[$this->tableLevel];
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}
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protected function releaseTableStartColumn()
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{
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--$this->tableLevel;
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return array_pop($this->nestedColumn);
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}
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protected function flushCell($sheet, $column, $row, &$cellContent)
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{
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if (is_string($cellContent)) {
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// Simple String content
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if (trim($cellContent) > '') {
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// Only actually write it if there's content in the string
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// echo 'FLUSH CELL: ' , $column , $row , ' => ' , $cellContent , '<br />';
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// Write to worksheet to be done here...
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// ... we return the cell so we can mess about with styles more easily
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$sheet->setCellValue($column . $row, $cellContent, true);
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$this->dataArray[$row][$column] = $cellContent;
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}
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} else {
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// We have a Rich Text run
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// TODO
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$this->dataArray[$row][$column] = 'RICH TEXT: ' . $cellContent;
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}
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$cellContent = (string) '';
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}
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protected function processDomElement(DOMNode $element, $sheet, &$row, &$column, &$cellContent, $format = null)
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{
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foreach ($element->childNodes as $child) {
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if ($child instanceof DOMText) {
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$domText = preg_replace('/\s+/u', ' ', trim($child->nodeValue));
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if (is_string($cellContent)) {
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// simply append the text if the cell content is a plain text string
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$cellContent .= $domText;
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} else {
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// but if we have a rich text run instead, we need to append it correctly
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// TODO
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}
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} elseif ($child instanceof DOMElement) {
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// echo '<b>DOM ELEMENT: </b>' , strtoupper($child->nodeName) , '<br />';
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$attributeArray = array();
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foreach ($child->attributes as $attribute) {
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// echo '<b>ATTRIBUTE: </b>' , $attribute->name , ' => ' , $attribute->value , '<br />';
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$attributeArray[$attribute->name] = $attribute->value;
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}
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switch ($child->nodeName) {
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case 'meta':
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foreach ($attributeArray as $attributeName => $attributeValue) {
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switch ($attributeName) {
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case 'content':
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// TODO
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// Extract character set, so we can convert to UTF-8 if required
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break;
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}
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}
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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break;
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case 'title':
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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$sheet->setTitle($cellContent);
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$cellContent = '';
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break;
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case 'span':
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case 'div':
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case 'font':
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case 'i':
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case 'em':
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case 'strong':
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case 'b':
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// echo 'STYLING, SPAN OR DIV<br />';
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if ($cellContent > '') {
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$cellContent .= ' ';
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}
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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if ($cellContent > '') {
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$cellContent .= ' ';
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}
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// echo 'END OF STYLING, SPAN OR DIV<br />';
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break;
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case 'hr':
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$this->flushCell($sheet, $column, $row, $cellContent);
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++$row;
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if (isset($this->formats[$child->nodeName])) {
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$sheet->getStyle($column . $row)->applyFromArray($this->formats[$child->nodeName]);
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} else {
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$cellContent = '----------';
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$this->flushCell($sheet, $column, $row, $cellContent);
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}
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++$row;
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// Add a break after a horizontal rule, simply by allowing the code to dropthru
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case 'br':
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if ($this->tableLevel > 0) {
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// If we're inside a table, replace with a \n
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$cellContent .= "\n";
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} else {
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// Otherwise flush our existing content and move the row cursor on
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$this->flushCell($sheet, $column, $row, $cellContent);
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++$row;
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}
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// echo 'HARD LINE BREAK: ' , '<br />';
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break;
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case 'a':
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// echo 'START OF HYPERLINK: ' , '<br />';
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foreach ($attributeArray as $attributeName => $attributeValue) {
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switch ($attributeName) {
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case 'href':
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// echo 'Link to ' , $attributeValue , '<br />';
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$sheet->getCell($column . $row)->getHyperlink()->setUrl($attributeValue);
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if (isset($this->formats[$child->nodeName])) {
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$sheet->getStyle($column . $row)->applyFromArray($this->formats[$child->nodeName]);
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}
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break;
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}
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}
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$cellContent .= ' ';
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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// echo 'END OF HYPERLINK:' , '<br />';
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break;
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case 'h1':
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case 'h2':
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case 'h3':
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case 'h4':
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case 'h5':
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case 'h6':
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case 'ol':
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case 'ul':
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case 'p':
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if ($this->tableLevel > 0) {
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// If we're inside a table, replace with a \n
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$cellContent .= "\n";
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// echo 'LIST ENTRY: ' , '<br />';
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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// echo 'END OF LIST ENTRY:' , '<br />';
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} else {
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if ($cellContent > '') {
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$this->flushCell($sheet, $column, $row, $cellContent);
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$row++;
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}
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// echo 'START OF PARAGRAPH: ' , '<br />';
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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// echo 'END OF PARAGRAPH:' , '<br />';
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$this->flushCell($sheet, $column, $row, $cellContent);
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if (isset($this->formats[$child->nodeName])) {
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$sheet->getStyle($column . $row)->applyFromArray($this->formats[$child->nodeName]);
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}
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$row++;
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$column = 'A';
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}
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break;
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case 'li':
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if ($this->tableLevel > 0) {
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// If we're inside a table, replace with a \n
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$cellContent .= "\n";
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// echo 'LIST ENTRY: ' , '<br />';
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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// echo 'END OF LIST ENTRY:' , '<br />';
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} else {
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if ($cellContent > '') {
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$this->flushCell($sheet, $column, $row, $cellContent);
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}
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++$row;
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// echo 'LIST ENTRY: ' , '<br />';
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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// echo 'END OF LIST ENTRY:' , '<br />';
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$this->flushCell($sheet, $column, $row, $cellContent);
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$column = 'A';
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}
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break;
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case 'table':
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$this->flushCell($sheet, $column, $row, $cellContent);
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$column = $this->setTableStartColumn($column);
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// echo 'START OF TABLE LEVEL ' , $this->tableLevel , '<br />';
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if ($this->tableLevel > 1) {
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--$row;
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}
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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// echo 'END OF TABLE LEVEL ' , $this->tableLevel , '<br />';
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$column = $this->releaseTableStartColumn();
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if ($this->tableLevel > 1) {
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++$column;
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} else {
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++$row;
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}
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break;
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case 'thead':
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case 'tbody':
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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break;
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case 'tr':
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$column = $this->getTableStartColumn();
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$cellContent = '';
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// echo 'START OF TABLE ' , $this->tableLevel , ' ROW<br />';
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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++$row;
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// echo 'END OF TABLE ' , $this->tableLevel , ' ROW<br />';
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break;
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case 'th':
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case 'td':
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// echo 'START OF TABLE ' , $this->tableLevel , ' CELL<br />';
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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// echo 'END OF TABLE ' , $this->tableLevel , ' CELL<br />';
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while (isset($this->rowspan[$column . $row])) {
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++$column;
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}
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$this->flushCell($sheet, $column, $row, $cellContent);
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// if (isset($attributeArray['style']) && !empty($attributeArray['style'])) {
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// $styleAry = $this->getPhpExcelStyleArray($attributeArray['style']);
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//
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// if (!empty($styleAry)) {
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// $sheet->getStyle($column . $row)->applyFromArray($styleAry);
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// }
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// }
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if (isset($attributeArray['rowspan']) && isset($attributeArray['colspan'])) {
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//create merging rowspan and colspan
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$columnTo = $column;
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for ($i = 0; $i < $attributeArray['colspan'] - 1; $i++) {
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++$columnTo;
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}
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$range = $column . $row . ':' . $columnTo . ($row + $attributeArray['rowspan'] - 1);
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foreach (\PHPExcel_Cell::extractAllCellReferencesInRange($range) as $value) {
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$this->rowspan[$value] = true;
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}
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$sheet->mergeCells($range);
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$column = $columnTo;
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} elseif (isset($attributeArray['rowspan'])) {
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//create merging rowspan
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$range = $column . $row . ':' . $column . ($row + $attributeArray['rowspan'] - 1);
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foreach (\PHPExcel_Cell::extractAllCellReferencesInRange($range) as $value) {
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$this->rowspan[$value] = true;
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}
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$sheet->mergeCells($range);
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} elseif (isset($attributeArray['colspan'])) {
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//create merging colspan
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$columnTo = $column;
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for ($i = 0; $i < $attributeArray['colspan'] - 1; $i++) {
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++$columnTo;
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}
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$sheet->mergeCells($column . $row . ':' . $columnTo . $row);
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$column = $columnTo;
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}
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++$column;
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break;
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case 'body':
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$row = 1;
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$column = 'A';
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$content = '';
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$this->tableLevel = 0;
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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break;
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default:
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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}
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}
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}
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}
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/**
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* Loads PHPExcel from file into PHPExcel instance
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*
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* @param string $pFilename
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* @param PHPExcel $objPHPExcel
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* @return PHPExcel
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* @throws PHPExcel_Reader_Exception
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*/
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public function loadIntoExisting($pFilename, PHPExcel $objPHPExcel)
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{
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// Open file to validate
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$this->openFile($pFilename);
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if (!$this->isValidFormat()) {
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fclose($this->fileHandle);
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throw new PHPExcel_Reader_Exception($pFilename . " is an Invalid HTML file.");
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}
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// Close after validating
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fclose($this->fileHandle);
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// Create new PHPExcel
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while ($objPHPExcel->getSheetCount() <= $this->sheetIndex) {
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$objPHPExcel->createSheet();
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}
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$objPHPExcel->setActiveSheetIndex($this->sheetIndex);
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// Create a new DOM object
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$dom = new domDocument;
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// Reload the HTML file into the DOM object
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$loaded = $dom->loadHTML(mb_convert_encoding($this->securityScanFile($pFilename), 'HTML-ENTITIES', 'UTF-8'));
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if ($loaded === false) {
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throw new PHPExcel_Reader_Exception('Failed to load ' . $pFilename . ' as a DOM Document');
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}
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// Discard white space
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$dom->preserveWhiteSpace = false;
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$row = 0;
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$column = 'A';
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$content = '';
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$this->processDomElement($dom, $objPHPExcel->getActiveSheet(), $row, $column, $content);
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// Return
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return $objPHPExcel;
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}
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/**
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* Get sheet index
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*
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* @return int
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*/
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public function getSheetIndex()
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{
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return $this->sheetIndex;
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}
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/**
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* Set sheet index
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*
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* @param int $pValue Sheet index
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* @return PHPExcel_Reader_HTML
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*/
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public function setSheetIndex($pValue = 0)
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{
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$this->sheetIndex = $pValue;
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return $this;
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}
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|
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/**
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* Scan theXML for use of <!ENTITY to prevent XXE/XEE attacks
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|
*
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|
* @param string $xml
|
|
* @throws PHPExcel_Reader_Exception
|
|
*/
|
|
public function securityScan($xml)
|
|
{
|
|
$pattern = '/\\0?' . implode('\\0?', str_split('<!ENTITY')) . '\\0?/';
|
|
if (preg_match($pattern, $xml)) {
|
|
throw new PHPExcel_Reader_Exception('Detected use of ENTITY in XML, spreadsheet file load() aborted to prevent XXE/XEE attacks');
|
|
}
|
|
return $xml;
|
|
}
|
|
}
|