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Current Path : /home/s/c/g/scgforma/www/soctest/htdocs/includes/phpoffice/PhpSpreadsheet/Reader/ |
Current File : /home/s/c/g/scgforma/www/soctest/htdocs/includes/phpoffice/PhpSpreadsheet/Reader/Html.php |
<?php namespace PhpOffice\PhpSpreadsheet\Reader; use DOMDocument; use DOMElement; use DOMNode; use DOMText; use PhpOffice\PhpSpreadsheet\Cell\Coordinate; use PhpOffice\PhpSpreadsheet\Reader\Security\XmlScanner; use PhpOffice\PhpSpreadsheet\Spreadsheet; use PhpOffice\PhpSpreadsheet\Style\Border; use PhpOffice\PhpSpreadsheet\Style\Color; use PhpOffice\PhpSpreadsheet\Style\Fill; use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet; /** PhpSpreadsheet root directory */ class Html extends BaseReader { /** * Sample size to read to determine if it's HTML or not. */ const TEST_SAMPLE_SIZE = 2048; /** * Input encoding. * * @var string */ protected $inputEncoding = 'ANSI'; /** * Sheet index to read. * * @var int */ protected $sheetIndex = 0; /** * Formats. * * @var array */ protected $formats = [ 'h1' => [ 'font' => [ 'bold' => true, 'size' => 24, ], ], // Bold, 24pt 'h2' => [ 'font' => [ 'bold' => true, 'size' => 18, ], ], // Bold, 18pt 'h3' => [ 'font' => [ 'bold' => true, 'size' => 13.5, ], ], // Bold, 13.5pt 'h4' => [ 'font' => [ 'bold' => true, 'size' => 12, ], ], // Bold, 12pt 'h5' => [ 'font' => [ 'bold' => true, 'size' => 10, ], ], // Bold, 10pt 'h6' => [ 'font' => [ 'bold' => true, 'size' => 7.5, ], ], // Bold, 7.5pt 'a' => [ 'font' => [ 'underline' => true, 'color' => [ 'argb' => Color::COLOR_BLUE, ], ], ], // Blue underlined 'hr' => [ 'borders' => [ 'bottom' => [ 'borderStyle' => Border::BORDER_THIN, 'color' => [ Color::COLOR_BLACK, ], ], ], ], // Bottom border ]; protected $rowspan = []; /** * Create a new HTML Reader instance. */ public function __construct() { $this->readFilter = new DefaultReadFilter(); $this->securityScanner = XmlScanner::getInstance($this); } /** * Validate that the current file is an HTML file. * * @param string $pFilename * * @return bool */ public function canRead($pFilename) { // Check if file exists try { $this->openFile($pFilename); } catch (Exception $e) { return false; } $beginning = $this->readBeginning(); $startWithTag = self::startsWithTag($beginning); $containsTags = self::containsTags($beginning); $endsWithTag = self::endsWithTag($this->readEnding()); fclose($this->fileHandle); return $startWithTag && $containsTags && $endsWithTag; } private function readBeginning() { fseek($this->fileHandle, 0); return fread($this->fileHandle, self::TEST_SAMPLE_SIZE); } private function readEnding() { $meta = stream_get_meta_data($this->fileHandle); $filename = $meta['uri']; $size = filesize($filename); if ($size === 0) { return ''; } $blockSize = self::TEST_SAMPLE_SIZE; if ($size < $blockSize) { $blockSize = $size; } fseek($this->fileHandle, $size - $blockSize); return fread($this->fileHandle, $blockSize); } private static function startsWithTag($data) { return '<' === substr(trim($data), 0, 1); } private static function endsWithTag($data) { return '>' === substr(trim($data), -1, 1); } private static function containsTags($data) { return strlen($data) !== strlen(strip_tags($data)); } /** * Loads Spreadsheet from file. * * @param string $pFilename * * @throws Exception * * @return Spreadsheet */ public function load($pFilename) { // Create new Spreadsheet $spreadsheet = new Spreadsheet(); // Load into this instance return $this->loadIntoExisting($pFilename, $spreadsheet); } /** * Set input encoding. * * @param string $pValue Input encoding, eg: 'ANSI' * * @return Html */ public function setInputEncoding($pValue) { $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 Spreadsheet object on completion of tests protected $dataArray = []; protected $tableLevel = 0; protected $nestedColumn = ['A']; protected function setTableStartColumn($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(Worksheet $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 // 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); $this->dataArray[$row][$column] = $cellContent; } } else { // We have a Rich Text run // TODO $this->dataArray[$row][$column] = 'RICH TEXT: ' . $cellContent; } $cellContent = (string) ''; } /** * @param DOMNode $element * @param Worksheet $sheet * @param int $row * @param string $column * @param string $cellContent */ protected function processDomElement(DOMNode $element, Worksheet $sheet, &$row, &$column, &$cellContent) { 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 .= $domText; } // but if we have a rich text run instead, we need to append it correctly // TODO } elseif ($child instanceof DOMElement) { $attributeArray = []; foreach ($child->attributes as $attribute) { $attributeArray[$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, true, false); $cellContent = ''; break; case 'span': case 'div': case 'font': case 'i': case 'em': case 'strong': case 'b': if (isset($attributeArray['class']) && $attributeArray['class'] === 'comment') { $sheet->getComment($column . $row) ->getText() ->createTextRun($child->textContent); break; } if ($cellContent > '') { $cellContent .= ' '; } $this->processDomElement($child, $sheet, $row, $column, $cellContent); if ($cellContent > '') { $cellContent .= ' '; } 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; // Add a break after a horizontal rule, simply by allowing the code to dropthru // no break 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; } break; case 'a': foreach ($attributeArray as $attributeName => $attributeValue) { switch ($attributeName) { case 'href': $sheet->getCell($column . $row)->getHyperlink()->setUrl($attributeValue); if (isset($this->formats[$child->nodeName])) { $sheet->getStyle($column . $row)->applyFromArray($this->formats[$child->nodeName]); } break; case 'class': if ($attributeValue === 'comment-indicator') { break; // Ignore - it's just a red square. } } } $cellContent .= ' '; $this->processDomElement($child, $sheet, $row, $column, $cellContent); break; case 'h1': case 'h2': case 'h3': case 'h4': case 'h5': case 'h6': case 'ol': case 'ul': case 'p': if ($this->tableLevel > 0) { // If we're inside a table, replace with a \n $cellContent .= "\n"; $this->processDomElement($child, $sheet, $row, $column, $cellContent); } else { if ($cellContent > '') { $this->flushCell($sheet, $column, $row, $cellContent); ++$row; } $this->processDomElement($child, $sheet, $row, $column, $cellContent); $this->flushCell($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"; $this->processDomElement($child, $sheet, $row, $column, $cellContent); } else { if ($cellContent > '') { $this->flushCell($sheet, $column, $row, $cellContent); } ++$row; $this->processDomElement($child, $sheet, $row, $column, $cellContent); $this->flushCell($sheet, $column, $row, $cellContent); $column = 'A'; } break; case 'table': $this->flushCell($sheet, $column, $row, $cellContent); $column = $this->setTableStartColumn($column); if ($this->tableLevel > 1) { --$row; } $this->processDomElement($child, $sheet, $row, $column, $cellContent); $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 = ''; $this->processDomElement($child, $sheet, $row, $column, $cellContent); ++$row; break; case 'th': case 'td': $this->processDomElement($child, $sheet, $row, $column, $cellContent); // apply inline style $this->applyInlineStyle($sheet, $row, $column, $attributeArray); while (isset($this->rowspan[$column . $row])) { ++$column; } $this->flushCell($sheet, $column, $row, $cellContent); if (isset($attributeArray['rowspan'], $attributeArray['colspan'])) { //create merging rowspan and colspan $columnTo = $column; for ($i = 0; $i < $attributeArray['colspan'] - 1; ++$i) { ++$columnTo; } $range = $column . $row . ':' . $columnTo . ($row + $attributeArray['rowspan'] - 1); foreach (Coordinate::extractAllCellReferencesInRange($range) as $value) { $this->rowspan[$value] = true; } $sheet->mergeCells($range); $column = $columnTo; } elseif (isset($attributeArray['rowspan'])) { //create merging rowspan $range = $column . $row . ':' . $column . ($row + $attributeArray['rowspan'] - 1); foreach (Coordinate::extractAllCellReferencesInRange($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 = $columnTo; } elseif (isset($attributeArray['bgcolor'])) { $sheet->getStyle($column . $row)->applyFromArray( [ 'fill' => [ 'fillType' => Fill::FILL_SOLID, 'color' => ['rgb' => $attributeArray['bgcolor']], ], ] ); } ++$column; break; case 'body': $row = 1; $column = 'A'; $cellContent = ''; $this->tableLevel = 0; $this->processDomElement($child, $sheet, $row, $column, $cellContent); break; default: $this->processDomElement($child, $sheet, $row, $column, $cellContent); } } } } /** * Loads PhpSpreadsheet from file into PhpSpreadsheet instance. * * @param string $pFilename * @param Spreadsheet $spreadsheet * * @throws Exception * * @return Spreadsheet */ public function loadIntoExisting($pFilename, Spreadsheet $spreadsheet) { // Validate if (!$this->canRead($pFilename)) { throw new Exception($pFilename . ' is an Invalid HTML file.'); } // Create new sheet while ($spreadsheet->getSheetCount() <= $this->sheetIndex) { $spreadsheet->createSheet(); } $spreadsheet->setActiveSheetIndex($this->sheetIndex); // Create a new DOM object $dom = new DOMDocument(); // Reload the HTML file into the DOM object $loaded = $dom->loadHTML(mb_convert_encoding($this->securityScanner->scanFile($pFilename), 'HTML-ENTITIES', 'UTF-8')); if ($loaded === false) { throw new Exception('Failed to load ' . $pFilename . ' as a DOM Document'); } // Discard white space $dom->preserveWhiteSpace = false; $row = 0; $column = 'A'; $content = ''; $this->rowspan = []; $this->processDomElement($dom, $spreadsheet->getActiveSheet(), $row, $column, $content); // Return return $spreadsheet; } /** * Get sheet index. * * @return int */ public function getSheetIndex() { return $this->sheetIndex; } /** * Set sheet index. * * @param int $pValue Sheet index * * @return HTML */ public function setSheetIndex($pValue) { $this->sheetIndex = $pValue; return $this; } /** * Apply inline css inline style. * * NOTES : * Currently only intended for td & th element, * and only takes 'background-color' and 'color'; property with HEX color * * TODO : * - Implement to other propertie, such as border * * @param Worksheet $sheet * @param int $row * @param string $column * @param array $attributeArray */ private function applyInlineStyle(&$sheet, $row, $column, $attributeArray) { if (!isset($attributeArray['style'])) { return; } $supported_styles = ['background-color', 'color']; // add color styles (background & text) from dom element,currently support : td & th, using ONLY inline css style with RGB color $styles = explode(';', $attributeArray['style']); foreach ($styles as $st) { $value = explode(':', $st); if (empty(trim($value[0])) || !in_array(trim($value[0]), $supported_styles)) { continue; } //check if has #, so we can get clean hex if (substr(trim($value[1]), 0, 1) == '#') { $style_color = substr(trim($value[1]), 1); } if (empty($style_color)) { continue; } switch (trim($value[0])) { case 'background-color': $sheet->getStyle($column . $row)->applyFromArray(['fill' => ['fillType' => Fill::FILL_SOLID, 'color' => ['rgb' => "{$style_color}"]]]); break; case 'color': $sheet->getStyle($column . $row)->applyFromArray(['font' => ['color' => ['rgb' => "{$style_color}"]]]); break; } } } }