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vendor/phpoffice/phpexcel/Classes/PHPExcel/Reader/HTML.php
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<?php

/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2014 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel_Reader
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version    ##VERSION##, ##DATE##
 */

/** PHPExcel root directory */
if (!defined('PHPEXCEL_ROOT')) {

  /**
   * @ignore
   */
  define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
  require PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php';
}

/**
 * PHPExcel_Reader_HTML
 *
 * @category   PHPExcel
 * @package    PHPExcel_Reader
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Reader_HTML extends PHPExcel_Reader_Abstract implements PHPExcel_Reader_IReader {

  /**
   * Input encoding
   *
   * @var string
   */
  protected $_inputEncoding = 'ANSI';

  /**
   * Sheet index to read
   *
   * @var int
   */
  protected $_sheetIndex = 0;

  /**
   * Formats
   *
   * @var array
   */
  protected $_formats = array(
    'h1' => array(
      'font' => array(
        'bold' => true,
        'size' => 24,
      ),
    ),
    //	Bold, 24pt
    'h2' => array(
      'font' => array(
        'bold' => true,
        'size' => 18,
      ),
    ),
    //	Bold, 18pt
    'h3' => array(
      'font' => array(
        'bold' => true,
        'size' => 13.5,
      ),
    ),
    //	Bold, 13.5pt
    'h4' => array(
      'font' => array(
        'bold' => true,
        'size' => 12,
      ),
    ),
    //	Bold, 12pt
    'h5' => array(
      'font' => array(
        'bold' => true,
        'size' => 10,
      ),
    ),
    //	Bold, 10pt
    'h6' => array(
      'font' => array(
        'bold' => true,
        'size' => 7.5,
      ),
    ),
    //	Bold, 7.5pt
    'a' => array(
      'font' => array(
        'underline' => true,
        'color' => array(
          'argb' => PHPExcel_Style_Color::COLOR_BLUE,
        ),
      ),
    ),
    //	Blue underlined
    'hr' => array(
      'borders' => array(
        'bottom' => array(
          'style' => PHPExcel_Style_Border::BORDER_THIN,
          'color' => array(
            \PHPExcel_Style_Color::COLOR_BLACK,
          ),
        ),
      ),
    ),
  );
  protected $rowspan = array();

  /**
   * Create a new PHPExcel_Reader_HTML
   */
  public function __construct() {
    $this->_readFilter = new PHPExcel_Reader_DefaultReadFilter();
  }

  /**
   * Validate that the current file is an HTML file
   *
   * @return boolean
   */
  protected function _isValidFormat() {

    //	Reading 2048 bytes should be enough to validate that the format is HTML
    $data = fread($this->_fileHandle, 2048);
    if (strpos($data, '<') !== FALSE && strlen($data) !== strlen(strip_tags($data))) {
      return TRUE;
    }
    return FALSE;
  }

  /**
   * Loads PHPExcel from file
   *
   * @param  string                    $pFilename
   * @return PHPExcel
   * @throws PHPExcel_Reader_Exception
   */
  public function load($pFilename) {

    // Create new PHPExcel
    $objPHPExcel = new PHPExcel();

    // Load into this instance
    return $this
      ->loadIntoExisting($pFilename, $objPHPExcel);
  }

  /**
   * Set input encoding
   *
   * @param string $pValue Input encoding
   */
  public function setInputEncoding($pValue = 'ANSI') {
    $this->_inputEncoding = $pValue;
    return $this;
  }

  /**
   * Get input encoding
   *
   * @return string
   */
  public function getInputEncoding() {
    return $this->_inputEncoding;
  }

  //	Data Array used for testing only, should write to PHPExcel object on completion of tests
  protected $_dataArray = array();
  protected $_tableLevel = 0;
  protected $_nestedColumn = array(
    'A',
  );
  protected function _setTableStartColumn($column) {
    if ($this->_tableLevel == 0) {
      $column = 'A';
    }
    ++$this->_tableLevel;
    $this->_nestedColumn[$this->_tableLevel] = $column;
    return $this->_nestedColumn[$this->_tableLevel];
  }
  protected function _getTableStartColumn() {
    return $this->_nestedColumn[$this->_tableLevel];
  }
  protected function _releaseTableStartColumn() {
    --$this->_tableLevel;
    return array_pop($this->_nestedColumn);
  }
  protected function _flushCell($sheet, $column, $row, &$cellContent) {
    if (is_string($cellContent)) {

      //	Simple String content
      if (trim($cellContent) > '') {

        //	Only actually write it if there's content in the string
        //				echo 'FLUSH CELL: ' , $column , $row , ' => ' , $cellContent , '<br />';
        //	Write to worksheet to be done here...
        //	... we return the cell so we can mess about with styles more easily
        $sheet
          ->setCellValue($column . $row, $cellContent, true);
        $this->_dataArray[$row][$column] = $cellContent;
      }
    }
    else {

      //	We have a Rich Text run
      //	TODO
      $this->_dataArray[$row][$column] = 'RICH TEXT: ' . $cellContent;
    }
    $cellContent = (string) '';
  }
  protected function _processDomElement(DOMNode $element, $sheet, &$row, &$column, &$cellContent, $format = null) {
    foreach ($element->childNodes as $child) {
      if ($child instanceof DOMText) {
        $domText = preg_replace('/\\s+/u', ' ', trim($child->nodeValue));
        if (is_string($cellContent)) {

          //	simply append the text if the cell content is a plain text string
          $cellContent .= $domText;
        }
        else {

          //	but if we have a rich text run instead, we need to append it correctly
          //	TODO
        }
      }
      elseif ($child instanceof DOMElement) {

        //				echo '<b>DOM ELEMENT: </b>' , strtoupper($child->nodeName) , '<br />';
        $attributeArray = array();
        foreach ($child->attributes as $attribute) {

          //					echo '<b>ATTRIBUTE: </b>' , $attribute->name , ' => ' , $attribute->value , '<br />';
          $attributeArray[$attribute->name] = $attribute->value;
        }
        switch ($child->nodeName) {
          case 'meta':
            foreach ($attributeArray as $attributeName => $attributeValue) {
              switch ($attributeName) {
                case 'content':

                  //	TODO
                  //	Extract character set, so we can convert to UTF-8 if required
                  break;
              }
            }
            $this
              ->_processDomElement($child, $sheet, $row, $column, $cellContent);
            break;
          case 'title':
            $this
              ->_processDomElement($child, $sheet, $row, $column, $cellContent);
            $sheet
              ->setTitle($cellContent);
            $cellContent = '';
            break;
          case 'span':
          case 'div':
          case 'font':
          case 'i':
          case 'em':
          case 'strong':
          case 'b':

            //						echo 'STYLING, SPAN OR DIV<br />';
            if ($cellContent > '') {
              $cellContent .= ' ';
            }
            $this
              ->_processDomElement($child, $sheet, $row, $column, $cellContent);
            if ($cellContent > '') {
              $cellContent .= ' ';
            }

            //						echo 'END OF STYLING, SPAN OR DIV<br />';
            break;
          case 'hr':
            $this
              ->_flushCell($sheet, $column, $row, $cellContent);
            ++$row;
            if (isset($this->_formats[$child->nodeName])) {
              $sheet
                ->getStyle($column . $row)
                ->applyFromArray($this->_formats[$child->nodeName]);
            }
            else {
              $cellContent = '----------';
              $this
                ->_flushCell($sheet, $column, $row, $cellContent);
            }
            ++$row;
          case 'br':
            if ($this->_tableLevel > 0) {

              //	If we're inside a table, replace with a \n
              $cellContent .= "\n";
            }
            else {

              //	Otherwise flush our existing content and move the row cursor on
              $this
                ->_flushCell($sheet, $column, $row, $cellContent);
              ++$row;
            }

            //						echo 'HARD LINE BREAK: ' , '<br />';
            break;
          case 'a':

            //						echo 'START OF HYPERLINK: ' , '<br />';
            foreach ($attributeArray as $attributeName => $attributeValue) {
              switch ($attributeName) {
                case 'href':

                  //									echo 'Link to ' , $attributeValue , '<br />';
                  $sheet
                    ->getCell($column . $row)
                    ->getHyperlink()
                    ->setUrl($attributeValue);
                  if (isset($this->_formats[$child->nodeName])) {
                    $sheet
                      ->getStyle($column . $row)
                      ->applyFromArray($this->_formats[$child->nodeName]);
                  }
                  break;
              }
            }
            $cellContent .= ' ';
            $this
              ->_processDomElement($child, $sheet, $row, $column, $cellContent);

            //						echo 'END OF HYPERLINK:' , '<br />';
            break;
          case 'h1':
          case 'h2':
          case 'h3':
          case 'h4':
          case 'h5':
          case 'h6':
          case 'ol':
          case 'ul':
          case 'p':
            if ($this->_tableLevel > 0) {

              //	If we're inside a table, replace with a \n
              $cellContent .= "\n";

              //							echo 'LIST ENTRY: ' , '<br />';
              $this
                ->_processDomElement($child, $sheet, $row, $column, $cellContent);

              //							echo 'END OF LIST ENTRY:' , '<br />';
            }
            else {
              if ($cellContent > '') {
                $this
                  ->_flushCell($sheet, $column, $row, $cellContent);
                $row++;
              }

              //							echo 'START OF PARAGRAPH: ' , '<br />';
              $this
                ->_processDomElement($child, $sheet, $row, $column, $cellContent);

              //							echo 'END OF PARAGRAPH:' , '<br />';
              $this
                ->_flushCell($sheet, $column, $row, $cellContent);
              if (isset($this->_formats[$child->nodeName])) {
                $sheet
                  ->getStyle($column . $row)
                  ->applyFromArray($this->_formats[$child->nodeName]);
              }
              $row++;
              $column = 'A';
            }
            break;
          case 'li':
            if ($this->_tableLevel > 0) {

              //	If we're inside a table, replace with a \n
              $cellContent .= "\n";

              //							echo 'LIST ENTRY: ' , '<br />';
              $this
                ->_processDomElement($child, $sheet, $row, $column, $cellContent);

              //							echo 'END OF LIST ENTRY:' , '<br />';
            }
            else {
              if ($cellContent > '') {
                $this
                  ->_flushCell($sheet, $column, $row, $cellContent);
              }
              ++$row;

              //							echo 'LIST ENTRY: ' , '<br />';
              $this
                ->_processDomElement($child, $sheet, $row, $column, $cellContent);

              //							echo 'END OF LIST ENTRY:' , '<br />';
              $this
                ->_flushCell($sheet, $column, $row, $cellContent);
              $column = 'A';
            }
            break;
          case 'table':
            $this
              ->_flushCell($sheet, $column, $row, $cellContent);
            $column = $this
              ->_setTableStartColumn($column);

            //						echo 'START OF TABLE LEVEL ' , $this->_tableLevel , '<br />';
            if ($this->_tableLevel > 1) {
              --$row;
            }
            $this
              ->_processDomElement($child, $sheet, $row, $column, $cellContent);

            //						echo 'END OF TABLE LEVEL ' , $this->_tableLevel , '<br />';
            $column = $this
              ->_releaseTableStartColumn();
            if ($this->_tableLevel > 1) {
              ++$column;
            }
            else {
              ++$row;
            }
            break;
          case 'thead':
          case 'tbody':
            $this
              ->_processDomElement($child, $sheet, $row, $column, $cellContent);
            break;
          case 'tr':
            $column = $this
              ->_getTableStartColumn();
            $cellContent = '';

            //						echo 'START OF TABLE ' , $this->_tableLevel , ' ROW<br />';
            $this
              ->_processDomElement($child, $sheet, $row, $column, $cellContent);
            ++$row;

            //						echo 'END OF TABLE ' , $this->_tableLevel , ' ROW<br />';
            break;
          case 'th':
          case 'td':

            //						echo 'START OF TABLE ' , $this->_tableLevel , ' CELL<br />';
            $this
              ->_processDomElement($child, $sheet, $row, $column, $cellContent);

            //						echo 'END OF TABLE ' , $this->_tableLevel , ' CELL<br />';
            while (isset($this->rowspan[$column . $row])) {
              ++$column;
            }
            $this
              ->_flushCell($sheet, $column, $row, $cellContent);

            //                        if (isset($attributeArray['style']) && !empty($attributeArray['style'])) {
            //                            $styleAry = $this->getPhpExcelStyleArray($attributeArray['style']);
            //
            //                            if (!empty($styleAry)) {
            //                                $sheet->getStyle($column . $row)->applyFromArray($styleAry);
            //                            }
            //                        }
            if (isset($attributeArray['rowspan']) && isset($attributeArray['colspan'])) {

              //create merging rowspan and colspan
              $columnTo = $column;
              for ($i = 0; $i < $attributeArray['colspan'] - 1; $i++) {
                ++$columnTo;
              }
              $range = $column . $row . ':' . $columnTo . ($row + $attributeArray['rowspan'] - 1);
              foreach (\PHPExcel_Cell::extractAllCellReferencesInRange($range) as $value) {
                $this->rowspan[$value] = true;
              }
              $sheet
                ->mergeCells($range);
              $column = $columnTo;
            }
            elseif (isset($attributeArray['rowspan'])) {

              //create merging rowspan
              $range = $column . $row . ':' . $column . ($row + $attributeArray['rowspan'] - 1);
              foreach (\PHPExcel_Cell::extractAllCellReferencesInRange($range) as $value) {
                $this->rowspan[$value] = true;
              }
              $sheet
                ->mergeCells($range);
            }
            elseif (isset($attributeArray['colspan'])) {

              //create merging colspan
              $columnTo = $column;
              for ($i = 0; $i < $attributeArray['colspan'] - 1; $i++) {
                ++$columnTo;
              }
              $sheet
                ->mergeCells($column . $row . ':' . $columnTo . $row);
              $column = $columnTo;
            }
            ++$column;
            break;
          case 'body':
            $row = 1;
            $column = 'A';
            $content = '';
            $this->_tableLevel = 0;
            $this
              ->_processDomElement($child, $sheet, $row, $column, $cellContent);
            break;
          default:
            $this
              ->_processDomElement($child, $sheet, $row, $column, $cellContent);
        }
      }
    }
  }

  /**
   * Loads PHPExcel from file into PHPExcel instance
   *
   * @param  string                    $pFilename
   * @param  PHPExcel                  $objPHPExcel
   * @return PHPExcel
   * @throws PHPExcel_Reader_Exception
   */
  public function loadIntoExisting($pFilename, PHPExcel $objPHPExcel) {

    // Open file to validate
    $this
      ->_openFile($pFilename);
    if (!$this
      ->_isValidFormat()) {
      fclose($this->_fileHandle);
      throw new PHPExcel_Reader_Exception($pFilename . " is an Invalid HTML file.");
    }

    //	Close after validating
    fclose($this->_fileHandle);

    // Create new PHPExcel
    while ($objPHPExcel
      ->getSheetCount() <= $this->_sheetIndex) {
      $objPHPExcel
        ->createSheet();
    }
    $objPHPExcel
      ->setActiveSheetIndex($this->_sheetIndex);

    //	Create a new DOM object
    $dom = new domDocument();

    //	Reload the HTML file into the DOM object
    $loaded = $dom
      ->loadHTML($this
      ->securityScanFile($pFilename));
    if ($loaded === FALSE) {
      throw new PHPExcel_Reader_Exception('Failed to load ', $pFilename, ' as a DOM Document');
    }

    //	Discard white space
    $dom->preserveWhiteSpace = false;
    $row = 0;
    $column = 'A';
    $content = '';
    $this
      ->_processDomElement($dom, $objPHPExcel
      ->getActiveSheet(), $row, $column, $content);

    // Return
    return $objPHPExcel;
  }

  /**
   * Get sheet index
   *
   * @return int
   */
  public function getSheetIndex() {
    return $this->_sheetIndex;
  }

  /**
   * Set sheet index
   *
   * @param  int                  $pValue Sheet index
   * @return PHPExcel_Reader_HTML
   */
  public function setSheetIndex($pValue = 0) {
    $this->_sheetIndex = $pValue;
    return $this;
  }

  /**
   * Scan theXML for use of <!ENTITY to prevent XXE/XEE attacks
   *
   * @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;
  }

}

Classes

Namesort descending Description
PHPExcel_Reader_HTML PHPExcel_Reader_HTML