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<?php |
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namespace PhpOffice\PhpSpreadsheet\Reader; |
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use DOMDocument; |
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use DOMElement; |
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use DOMNode; |
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use DOMText; |
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use PhpOffice\PhpSpreadsheet\Cell\Coordinate; |
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use PhpOffice\PhpSpreadsheet\Spreadsheet; |
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use PhpOffice\PhpSpreadsheet\Style\Border; |
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use PhpOffice\PhpSpreadsheet\Style\Color; |
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use PhpOffice\PhpSpreadsheet\Style\Fill; |
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use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet; |
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/** PhpSpreadsheet root directory */ |
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class Html extends BaseReader |
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{ |
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/** |
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* Sample size to read to determine if it's HTML or not. |
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*/ |
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const TEST_SAMPLE_SIZE = 2048; |
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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 = [ |
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'h1' => [ |
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'font' => [ |
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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' => [ |
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'font' => [ |
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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' => [ |
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'font' => [ |
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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' => [ |
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'font' => [ |
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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' => [ |
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'font' => [ |
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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' => [ |
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'font' => [ |
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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' => [ |
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'font' => [ |
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'underline' => true, |
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'color' => [ |
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'argb' => Color::COLOR_BLUE, |
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], |
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], |
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], // Blue underlined |
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'hr' => [ |
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'borders' => [ |
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'bottom' => [ |
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'borderStyle' => Border::BORDER_THIN, |
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'color' => [ |
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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 $rowspan = []; |
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/** |
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* Create a new HTML Reader instance. |
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*/ |
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public function __construct() |
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{ |
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$this->readFilter = new 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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* @param string $pFilename |
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* |
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* @return bool |
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*/ |
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public function canRead($pFilename) |
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{ |
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// Check if file exists |
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try { |
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$this->openFile($pFilename); |
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} catch (Exception $e) { |
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return false; |
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} |
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$beginning = $this->readBeginning(); |
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$startWithTag = self::startsWithTag($beginning); |
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$containsTags = self::containsTags($beginning); |
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$endsWithTag = self::endsWithTag($this->readEnding()); |
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fclose($this->fileHandle); |
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return $startWithTag && $containsTags && $endsWithTag; |
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} |
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private function readBeginning() |
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{ |
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fseek($this->fileHandle, 0); |
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return fread($this->fileHandle, self::TEST_SAMPLE_SIZE); |
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} |
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private function readEnding() |
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{ |
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$meta = stream_get_meta_data($this->fileHandle); |
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$filename = $meta['uri']; |
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$size = filesize($filename); |
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if ($size === 0) { |
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return ''; |
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} |
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$blockSize = self::TEST_SAMPLE_SIZE; |
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if ($size < $blockSize) { |
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$blockSize = $size; |
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} |
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fseek($this->fileHandle, $size - $blockSize); |
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return fread($this->fileHandle, $blockSize); |
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} |
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private static function startsWithTag($data) |
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{ |
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return '<' === substr(trim($data), 0, 1); |
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} |
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private static function endsWithTag($data) |
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{ |
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return '>' === substr(trim($data), -1, 1); |
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} |
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private static function containsTags($data) |
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{ |
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return strlen($data) !== strlen(strip_tags($data)); |
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} |
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/** |
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* Loads Spreadsheet from file. |
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* |
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* @param string $pFilename |
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* |
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* @throws Exception |
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* |
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* @return Spreadsheet |
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*/ |
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public function load($pFilename) |
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{ |
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// Create new Spreadsheet |
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$spreadsheet = new Spreadsheet(); |
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// Load into this instance |
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return $this->loadIntoExisting($pFilename, $spreadsheet); |
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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 $pValue Input encoding, eg: 'ANSI' |
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*/ |
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public function setInputEncoding($pValue) |
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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 Spreadsheet object on completion of tests |
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protected $dataArray = []; |
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protected $tableLevel = 0; |
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protected $nestedColumn = ['A']; |
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protected function setTableStartColumn($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(Worksheet $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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// 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, $cellContent); |
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$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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/** |
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* @param DOMNode $element |
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* @param Worksheet $sheet |
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* @param int $row |
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* @param string $column |
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* @param string $cellContent |
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*/ |
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protected function processDomElement(DOMNode $element, Worksheet $sheet, &$row, &$column, &$cellContent) |
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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 .= $domText; |
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} |
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// but if we have a rich text run instead, we need to append it correctly |
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// TODO |
283
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} elseif ($child instanceof DOMElement) { |
284
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$attributeArray = []; |
285
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foreach ($child->attributes as $attribute) { |
286
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$attributeArray[$attribute->name] = $attribute->value; |
287
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} |
288
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289
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switch ($child->nodeName) { |
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case 'meta': |
291
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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, $cellContent); |
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301
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break; |
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case 'title': |
303
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$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
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$sheet->setTitle($cellContent, true, false); |
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$cellContent = ''; |
306
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307
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break; |
308
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8 |
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case 'span': |
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case 'div': |
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case 'font': |
311
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case 'i': |
312
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case 'em': |
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case 'strong': |
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case 'b': |
315
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5 |
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if (isset($attributeArray['class']) && $attributeArray['class'] === 'comment') { |
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$sheet->getComment($column . $row) |
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->getText() |
318
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5 |
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->createTextRun($child->textContent); |
319
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320
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5 |
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break; |
321
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} |
322
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323
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if ($cellContent > '') { |
324
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$cellContent .= ' '; |
325
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} |
326
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$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
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if ($cellContent > '') { |
328
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$cellContent .= ' '; |
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} |
330
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331
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break; |
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8 |
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case 'hr': |
333
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$this->flushCell($sheet, $column, $row, $cellContent); |
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++$row; |
335
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if (isset($this->formats[$child->nodeName])) { |
336
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$sheet->getStyle($column . $row)->applyFromArray($this->formats[$child->nodeName]); |
337
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} else { |
338
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$cellContent = '----------'; |
339
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$this->flushCell($sheet, $column, $row, $cellContent); |
340
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} |
341
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++$row; |
342
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// Add a break after a horizontal rule, simply by allowing the code to dropthru |
343
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// no break |
344
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8 |
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case 'br': |
345
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if ($this->tableLevel > 0) { |
346
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// If we're inside a table, replace with a \n |
347
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$cellContent .= "\n"; |
348
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} else { |
349
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// Otherwise flush our existing content and move the row cursor on |
350
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$this->flushCell($sheet, $column, $row, $cellContent); |
351
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++$row; |
352
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} |
353
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|
354
|
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break; |
355
|
8 |
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case 'a': |
356
|
5 |
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foreach ($attributeArray as $attributeName => $attributeValue) { |
357
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switch ($attributeName) { |
358
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5 |
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case 'href': |
359
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$sheet->getCell($column . $row)->getHyperlink()->setUrl($attributeValue); |
360
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if (isset($this->formats[$child->nodeName])) { |
361
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$sheet->getStyle($column . $row)->applyFromArray($this->formats[$child->nodeName]); |
362
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} |
363
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364
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break; |
365
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5 |
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case 'class': |
366
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5 |
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if ($attributeValue === 'comment-indicator') { |
367
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5 |
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break; // Ignore - it's just a red square. |
368
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} |
369
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} |
370
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} |
371
|
5 |
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$cellContent .= ' '; |
372
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5 |
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$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
373
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374
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5 |
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break; |
375
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8 |
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case 'h1': |
376
|
8 |
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case 'h2': |
377
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8 |
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case 'h3': |
378
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8 |
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case 'h4': |
379
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8 |
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case 'h5': |
380
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8 |
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case 'h6': |
381
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8 |
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case 'ol': |
382
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8 |
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case 'ul': |
383
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8 |
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case 'p': |
384
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if ($this->tableLevel > 0) { |
385
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// If we're inside a table, replace with a \n |
386
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$cellContent .= "\n"; |
387
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$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
388
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|
} else { |
389
|
|
|
if ($cellContent > '') { |
390
|
|
|
$this->flushCell($sheet, $column, $row, $cellContent); |
391
|
|
|
++$row; |
392
|
|
|
} |
393
|
|
|
$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
394
|
|
|
$this->flushCell($sheet, $column, $row, $cellContent); |
395
|
|
|
|
396
|
|
|
if (isset($this->formats[$child->nodeName])) { |
397
|
|
|
$sheet->getStyle($column . $row)->applyFromArray($this->formats[$child->nodeName]); |
398
|
|
|
} |
399
|
|
|
|
400
|
|
|
++$row; |
401
|
|
|
$column = 'A'; |
402
|
|
|
} |
403
|
|
|
|
404
|
|
|
break; |
405
|
8 |
|
case 'li': |
406
|
|
|
if ($this->tableLevel > 0) { |
407
|
|
|
// If we're inside a table, replace with a \n |
408
|
|
|
$cellContent .= "\n"; |
409
|
|
|
$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
410
|
|
|
} else { |
411
|
|
|
if ($cellContent > '') { |
412
|
|
|
$this->flushCell($sheet, $column, $row, $cellContent); |
413
|
|
|
} |
414
|
|
|
++$row; |
415
|
|
|
$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
416
|
|
|
$this->flushCell($sheet, $column, $row, $cellContent); |
417
|
|
|
$column = 'A'; |
418
|
|
|
} |
419
|
|
|
|
420
|
|
|
break; |
421
|
8 |
|
case 'table': |
422
|
8 |
|
$this->flushCell($sheet, $column, $row, $cellContent); |
423
|
8 |
|
$column = $this->setTableStartColumn($column); |
424
|
8 |
|
if ($this->tableLevel > 1) { |
425
|
|
|
--$row; |
426
|
|
|
} |
427
|
8 |
|
$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
428
|
8 |
|
$column = $this->releaseTableStartColumn(); |
429
|
8 |
|
if ($this->tableLevel > 1) { |
430
|
|
|
++$column; |
431
|
|
|
} else { |
432
|
8 |
|
++$row; |
433
|
|
|
} |
434
|
|
|
|
435
|
8 |
|
break; |
436
|
8 |
|
case 'thead': |
437
|
8 |
|
case 'tbody': |
438
|
7 |
|
$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
439
|
|
|
|
440
|
7 |
|
break; |
441
|
8 |
|
case 'tr': |
442
|
8 |
|
$column = $this->getTableStartColumn(); |
443
|
8 |
|
$cellContent = ''; |
444
|
8 |
|
$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
445
|
8 |
|
++$row; |
446
|
|
|
|
447
|
8 |
|
break; |
448
|
8 |
|
case 'th': |
449
|
8 |
|
case 'td': |
450
|
8 |
|
$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
451
|
|
|
|
452
|
|
|
// apply inline style |
453
|
8 |
|
$this->applyInlineStyle($sheet, $row, $column, $attributeArray); |
454
|
|
|
|
455
|
8 |
|
while (isset($this->rowspan[$column . $row])) { |
456
|
|
|
++$column; |
457
|
|
|
} |
458
|
|
|
|
459
|
8 |
|
$this->flushCell($sheet, $column, $row, $cellContent); |
460
|
|
|
|
461
|
8 |
|
if (isset($attributeArray['rowspan'], $attributeArray['colspan'])) { |
462
|
|
|
//create merging rowspan and colspan |
463
|
|
|
$columnTo = $column; |
464
|
|
|
for ($i = 0; $i < $attributeArray['colspan'] - 1; ++$i) { |
465
|
|
|
++$columnTo; |
466
|
|
|
} |
467
|
|
|
$range = $column . $row . ':' . $columnTo . ($row + $attributeArray['rowspan'] - 1); |
468
|
|
|
foreach (Coordinate::extractAllCellReferencesInRange($range) as $value) { |
469
|
|
|
$this->rowspan[$value] = true; |
470
|
|
|
} |
471
|
|
|
$sheet->mergeCells($range); |
472
|
|
|
$column = $columnTo; |
473
|
8 |
|
} elseif (isset($attributeArray['rowspan'])) { |
474
|
|
|
//create merging rowspan |
475
|
|
|
$range = $column . $row . ':' . $column . ($row + $attributeArray['rowspan'] - 1); |
476
|
|
|
foreach (Coordinate::extractAllCellReferencesInRange($range) as $value) { |
477
|
|
|
$this->rowspan[$value] = true; |
478
|
|
|
} |
479
|
|
|
$sheet->mergeCells($range); |
480
|
8 |
|
} elseif (isset($attributeArray['colspan'])) { |
481
|
|
|
//create merging colspan |
482
|
1 |
|
$columnTo = $column; |
483
|
1 |
|
for ($i = 0; $i < $attributeArray['colspan'] - 1; ++$i) { |
484
|
1 |
|
++$columnTo; |
485
|
|
|
} |
486
|
1 |
|
$sheet->mergeCells($column . $row . ':' . $columnTo . $row); |
487
|
1 |
|
$column = $columnTo; |
488
|
8 |
|
} elseif (isset($attributeArray['bgcolor'])) { |
489
|
|
|
$sheet->getStyle($column . $row)->applyFromArray( |
490
|
|
|
[ |
491
|
|
|
'fill' => [ |
492
|
|
|
'fillType' => Fill::FILL_SOLID, |
493
|
|
|
'color' => ['rgb' => $attributeArray['bgcolor']], |
494
|
|
|
], |
495
|
|
|
] |
496
|
|
|
); |
497
|
|
|
} |
498
|
8 |
|
++$column; |
499
|
|
|
|
500
|
8 |
|
break; |
501
|
8 |
|
case 'body': |
502
|
8 |
|
$row = 1; |
503
|
8 |
|
$column = 'A'; |
504
|
8 |
|
$cellContent = ''; |
505
|
8 |
|
$this->tableLevel = 0; |
506
|
8 |
|
$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
507
|
|
|
|
508
|
8 |
|
break; |
509
|
|
|
default: |
510
|
8 |
|
$this->processDomElement($child, $sheet, $row, $column, $cellContent); |
511
|
|
|
} |
512
|
|
|
} |
513
|
|
|
} |
514
|
8 |
|
} |
515
|
|
|
|
516
|
|
|
/** |
517
|
|
|
* Loads PhpSpreadsheet from file into PhpSpreadsheet instance. |
518
|
|
|
* |
519
|
|
|
* @param string $pFilename |
520
|
|
|
* @param Spreadsheet $spreadsheet |
521
|
|
|
* |
522
|
|
|
* @throws Exception |
523
|
|
|
* |
524
|
|
|
* @return Spreadsheet |
525
|
|
|
*/ |
526
|
8 |
|
public function loadIntoExisting($pFilename, Spreadsheet $spreadsheet) |
527
|
|
|
{ |
528
|
|
|
// Validate |
529
|
8 |
|
if (!$this->canRead($pFilename)) { |
530
|
|
|
throw new Exception($pFilename . ' is an Invalid HTML file.'); |
531
|
|
|
} |
532
|
|
|
|
533
|
|
|
// Create new sheet |
534
|
8 |
|
while ($spreadsheet->getSheetCount() <= $this->sheetIndex) { |
535
|
|
|
$spreadsheet->createSheet(); |
536
|
|
|
} |
537
|
8 |
|
$spreadsheet->setActiveSheetIndex($this->sheetIndex); |
538
|
|
|
|
539
|
|
|
// Create a new DOM object |
540
|
8 |
|
$dom = new DOMDocument(); |
|
|
|
|
541
|
|
|
// Reload the HTML file into the DOM object |
542
|
8 |
|
$loaded = $dom->loadHTML(mb_convert_encoding($this->securityScanFile($pFilename), 'HTML-ENTITIES', 'UTF-8')); |
543
|
8 |
|
if ($loaded === false) { |
544
|
|
|
throw new Exception('Failed to load ' . $pFilename . ' as a DOM Document'); |
545
|
|
|
} |
546
|
|
|
|
547
|
|
|
// Discard white space |
548
|
8 |
|
$dom->preserveWhiteSpace = false; |
549
|
|
|
|
550
|
8 |
|
$row = 0; |
551
|
8 |
|
$column = 'A'; |
552
|
8 |
|
$content = ''; |
553
|
8 |
|
$this->processDomElement($dom, $spreadsheet->getActiveSheet(), $row, $column, $content); |
554
|
|
|
|
555
|
|
|
// Return |
556
|
8 |
|
return $spreadsheet; |
557
|
|
|
} |
558
|
|
|
|
559
|
|
|
/** |
560
|
|
|
* Get sheet index. |
561
|
|
|
* |
562
|
|
|
* @return int |
563
|
|
|
*/ |
564
|
|
|
public function getSheetIndex() |
565
|
|
|
{ |
566
|
|
|
return $this->sheetIndex; |
567
|
|
|
} |
568
|
|
|
|
569
|
|
|
/** |
570
|
|
|
* Set sheet index. |
571
|
|
|
* |
572
|
|
|
* @param int $pValue Sheet index |
573
|
|
|
* |
574
|
|
|
* @return HTML |
575
|
|
|
*/ |
576
|
|
|
public function setSheetIndex($pValue) |
577
|
|
|
{ |
578
|
|
|
$this->sheetIndex = $pValue; |
579
|
|
|
|
580
|
|
|
return $this; |
581
|
|
|
} |
582
|
|
|
|
583
|
|
|
/** |
584
|
|
|
* Scan theXML for use of <!ENTITY to prevent XXE/XEE attacks. |
585
|
|
|
* |
586
|
|
|
* @param string $xml |
587
|
|
|
* |
588
|
|
|
* @throws Exception |
589
|
|
|
*/ |
590
|
8 |
|
public function securityScan($xml) |
591
|
|
|
{ |
592
|
8 |
|
$pattern = '/\\0?' . implode('\\0?', str_split('<!ENTITY')) . '\\0?/'; |
593
|
8 |
|
if (preg_match($pattern, $xml)) { |
594
|
|
|
throw new Exception('Detected use of ENTITY in XML, spreadsheet file load() aborted to prevent XXE/XEE attacks'); |
595
|
|
|
} |
596
|
|
|
|
597
|
8 |
|
return $xml; |
598
|
|
|
} |
599
|
|
|
|
600
|
|
|
/** |
601
|
|
|
* Apply inline css inline style. |
602
|
|
|
* |
603
|
|
|
* NOTES : |
604
|
|
|
* Currently only intended for td & th element, |
605
|
|
|
* and only takes 'background-color' and 'color'; property with HEX color |
606
|
|
|
* |
607
|
|
|
* TODO : |
608
|
|
|
* - Implement to other propertie, such as border |
609
|
|
|
* |
610
|
|
|
* @param Worksheet $sheet |
611
|
|
|
* @param array $attributeArray |
612
|
|
|
* @param int $row |
613
|
|
|
* @param string $column |
614
|
|
|
*/ |
615
|
8 |
|
private function applyInlineStyle(&$sheet, $row, $column, $attributeArray) |
616
|
|
|
{ |
617
|
8 |
|
if (!isset($attributeArray['style'])) { |
618
|
8 |
|
return; |
619
|
|
|
} |
620
|
|
|
|
621
|
1 |
|
$supported_styles = ['background-color', 'color']; |
622
|
|
|
|
623
|
|
|
// add color styles (background & text) from dom element,currently support : td & th, using ONLY inline css style with RGB color |
624
|
1 |
|
$styles = explode(';', $attributeArray['style']); |
625
|
1 |
|
foreach ($styles as $st) { |
626
|
1 |
|
$value = explode(':', $st); |
627
|
|
|
|
628
|
1 |
|
if (empty(trim($value[0])) || !in_array(trim($value[0]), $supported_styles)) { |
629
|
|
|
continue; |
630
|
|
|
} |
631
|
|
|
|
632
|
|
|
//check if has #, so we can get clean hex |
633
|
1 |
|
if (substr(trim($value[1]), 0, 1) == '#') { |
634
|
1 |
|
$style_color = substr(trim($value[1]), 1); |
635
|
|
|
} |
636
|
|
|
|
637
|
1 |
|
if (empty($style_color)) { |
638
|
|
|
continue; |
639
|
|
|
} |
640
|
|
|
|
641
|
1 |
|
switch (trim($value[0])) { |
642
|
1 |
|
case 'background-color': |
643
|
1 |
|
$sheet->getStyle($column . $row)->applyFromArray(['fill' => ['fillType' => Fill::FILL_SOLID, 'color' => ['rgb' => "{$style_color}"]]]); |
|
|
|
|
644
|
|
|
|
645
|
1 |
|
break; |
646
|
1 |
|
case 'color': |
647
|
1 |
|
$sheet->getStyle($column . $row)->applyFromArray(['font' => ['color' => ['rgb' => "$style_color}"]]]); |
648
|
|
|
|
649
|
1 |
|
break; |
650
|
|
|
} |
651
|
|
|
} |
652
|
1 |
|
} |
653
|
|
|
} |
654
|
|
|
|