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<?php
namespace PhpOffice\PhpSpreadsheet\Reader;
use DateTime;
use DateTimeZone;
use PhpOffice\PhpSpreadsheet\Cell\AddressHelper;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Cell\DataType;
use PhpOffice\PhpSpreadsheet\DefinedName;
use PhpOffice\PhpSpreadsheet\Reader\Security\XmlScanner;
use PhpOffice\PhpSpreadsheet\Reader\Xml\PageSettings;
use PhpOffice\PhpSpreadsheet\Reader\Xml\Properties;
use PhpOffice\PhpSpreadsheet\Reader\Xml\Style;
use PhpOffice\PhpSpreadsheet\RichText\RichText;
use PhpOffice\PhpSpreadsheet\Settings;
use PhpOffice\PhpSpreadsheet\Shared\Date;
use PhpOffice\PhpSpreadsheet\Shared\File;
use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use SimpleXMLElement;
/**
* Reader for SpreadsheetML, the XML schema for Microsoft Office Excel 2003.
*/
class Xml extends BaseReader
{
/**
* Formats.
*
* @var array
*/
protected $styles = [];
/**
* Create a new Excel2003XML Reader instance.
*/
public function __construct()
{
parent::__construct();
$this->securityScanner = XmlScanner::getInstance($this);
}
private $fileContents = '';
public static function xmlMappings(): array
{
return array_merge(
Style\Fill::FILL_MAPPINGS,
Style\Border::BORDER_MAPPINGS
);
}
/**
* Can the current IReader read the file?
*
* @param string $pFilename
*
* @return bool
*/
public function canRead($pFilename)
{
// Office xmlns:o="urn:schemas-microsoft-com:office:office"
// Excel xmlns:x="urn:schemas-microsoft-com:office:excel"
// XML Spreadsheet xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet"
// Spreadsheet component xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet"
// XML schema xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882"
// XML data type xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882"
// MS-persist recordset xmlns:rs="urn:schemas-microsoft-com:rowset"
// Rowset xmlns:z="#RowsetSchema"
//
$signature = [
'<?xml version="1.0"',
'xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet',
];
// Open file
$data = file_get_contents($pFilename);
// Why?
//$data = str_replace("'", '"', $data); // fix headers with single quote
$valid = true;
foreach ($signature as $match) {
// every part of the signature must be present
if (strpos($data, $match) === false) {
$valid = false;
break;
}
}
// Retrieve charset encoding
if (preg_match('/<?xml.*encoding=[\'"](.*?)[\'"].*?>/m', $data, $matches)) {
$charSet = strtoupper($matches[1]);
if (1 == preg_match('/^ISO-8859-\d[\dL]?$/i', $charSet)) {
$data = StringHelper::convertEncoding($data, 'UTF-8', $charSet);
$data = preg_replace('/(<?xml.*encoding=[\'"]).*?([\'"].*?>)/um', '$1' . 'UTF-8' . '$2', $data, 1);
}
}
$this->fileContents = $data;
return $valid;
}
/**
* Check if the file is a valid SimpleXML.
*
* @param string $pFilename
*
* @return false|SimpleXMLElement
*/
public function trySimpleXMLLoadString($pFilename)
{
try {
$xml = simplexml_load_string(
$this->securityScanner->scan($this->fileContents ?: file_get_contents($pFilename)),
'SimpleXMLElement',
Settings::getLibXmlLoaderOptions()
);
} catch (\Exception $e) {
throw new Exception('Cannot load invalid XML file: ' . $pFilename, 0, $e);
}
$this->fileContents = '';
return $xml;
}
/**
* Reads names of the worksheets from a file, without parsing the whole file to a Spreadsheet object.
*
* @param string $filename
*
* @return array
*/
public function listWorksheetNames($filename)
{
File::assertFile($filename);
if (!$this->canRead($filename)) {
throw new Exception($filename . ' is an Invalid Spreadsheet file.');
}
$worksheetNames = [];
$xml = $this->trySimpleXMLLoadString($filename);
if ($xml === false) {
throw new Exception("Problem reading {$filename}");
}
$namespaces = $xml->getNamespaces(true);
$xml_ss = $xml->children($namespaces['ss']);
foreach ($xml_ss->Worksheet as $worksheet) {
$worksheet_ss = self::getAttributes($worksheet, $namespaces['ss']);
$worksheetNames[] = (string) $worksheet_ss['Name'];
}
return $worksheetNames;
}
/**
* Return worksheet info (Name, Last Column Letter, Last Column Index, Total Rows, Total Columns).
*
* @param string $filename
*
* @return array
*/
public function listWorksheetInfo($filename)
{
File::assertFile($filename);
if (!$this->canRead($filename)) {
throw new Exception($filename . ' is an Invalid Spreadsheet file.');
}
$worksheetInfo = [];
$xml = $this->trySimpleXMLLoadString($filename);
if ($xml === false) {
throw new Exception("Problem reading {$filename}");
}
$namespaces = $xml->getNamespaces(true);
$worksheetID = 1;
$xml_ss = $xml->children($namespaces['ss']);
foreach ($xml_ss->Worksheet as $worksheet) {
$worksheet_ss = self::getAttributes($worksheet, $namespaces['ss']);
$tmpInfo = [];
$tmpInfo['worksheetName'] = '';
$tmpInfo['lastColumnLetter'] = 'A';
$tmpInfo['lastColumnIndex'] = 0;
$tmpInfo['totalRows'] = 0;
$tmpInfo['totalColumns'] = 0;
$tmpInfo['worksheetName'] = "Worksheet_{$worksheetID}";
if (isset($worksheet_ss['Name'])) {
$tmpInfo['worksheetName'] = (string) $worksheet_ss['Name'];
}
if (isset($worksheet->Table->Row)) {
$rowIndex = 0;
foreach ($worksheet->Table->Row as $rowData) {
$columnIndex = 0;
$rowHasData = false;
foreach ($rowData->Cell as $cell) {
if (isset($cell->Data)) {
$tmpInfo['lastColumnIndex'] = max($tmpInfo['lastColumnIndex'], $columnIndex);
$rowHasData = true;
}
++$columnIndex;
}
++$rowIndex;
if ($rowHasData) {
$tmpInfo['totalRows'] = max($tmpInfo['totalRows'], $rowIndex);
}
}
}
$tmpInfo['lastColumnLetter'] = Coordinate::stringFromColumnIndex($tmpInfo['lastColumnIndex'] + 1);
$tmpInfo['totalColumns'] = $tmpInfo['lastColumnIndex'] + 1;
$worksheetInfo[] = $tmpInfo;
++$worksheetID;
}
return $worksheetInfo;
}
/**
* Loads Spreadsheet from file.
*
* @param string $filename
*
* @return Spreadsheet
*/
public function load($filename)
{
// Create new Spreadsheet
$spreadsheet = new Spreadsheet();
$spreadsheet->removeSheetByIndex(0);
// Load into this instance
return $this->loadIntoExisting($filename, $spreadsheet);
}
/**
* Loads from file into Spreadsheet instance.
*
* @param string $filename
*
* @return Spreadsheet
*/
public function loadIntoExisting($filename, Spreadsheet $spreadsheet)
{
File::assertFile($filename);
if (!$this->canRead($filename)) {
throw new Exception($filename . ' is an Invalid Spreadsheet file.');
}
$xml = $this->trySimpleXMLLoadString($filename);
if ($xml === false) {
throw new Exception("Problem reading {$filename}");
}
$namespaces = $xml->getNamespaces(true);
(new Properties($spreadsheet))->readProperties($xml, $namespaces);
$this->styles = (new Style())->parseStyles($xml, $namespaces);
$worksheetID = 0;
$xml_ss = $xml->children($namespaces['ss']);
/** @var null|SimpleXMLElement $worksheetx */
foreach ($xml_ss->Worksheet as $worksheetx) {
$worksheet = $worksheetx ?? new SimpleXMLElement('<xml></xml>');
$worksheet_ss = self::getAttributes($worksheet, $namespaces['ss']);
if (
isset($this->loadSheetsOnly, $worksheet_ss['Name']) &&
(!in_array($worksheet_ss['Name'], $this->loadSheetsOnly))
) {
continue;
}
// Create new Worksheet
$spreadsheet->createSheet();
$spreadsheet->setActiveSheetIndex($worksheetID);
$worksheetName = '';
if (isset($worksheet_ss['Name'])) {
$worksheetName = (string) $worksheet_ss['Name'];
// Use false for $updateFormulaCellReferences to prevent adjustment of worksheet references in
// formula cells... during the load, all formulae should be correct, and we're simply bringing
// the worksheet name in line with the formula, not the reverse
$spreadsheet->getActiveSheet()->setTitle($worksheetName, false, false);
}
// locally scoped defined names
if (isset($worksheet->Names[0])) {
foreach ($worksheet->Names[0] as $definedName) {
$definedName_ss = self::getAttributes($definedName, $namespaces['ss']);
$name = (string) $definedName_ss['Name'];
$definedValue = (string) $definedName_ss['RefersTo'];
$convertedValue = AddressHelper::convertFormulaToA1($definedValue);
if ($convertedValue[0] === '=') {
$convertedValue = substr($convertedValue, 1);
}
$spreadsheet->addDefinedName(DefinedName::createInstance($name, $spreadsheet->getActiveSheet(), $convertedValue, true));
}
}
$columnID = 'A';
if (isset($worksheet->Table->Column)) {
foreach ($worksheet->Table->Column as $columnData) {
$columnData_ss = self::getAttributes($columnData, $namespaces['ss']);
if (isset($columnData_ss['Index'])) {
$columnID = Coordinate::stringFromColumnIndex((int) $columnData_ss['Index']);
}
if (isset($columnData_ss['Width'])) {
$columnWidth = $columnData_ss['Width'];
$spreadsheet->getActiveSheet()->getColumnDimension($columnID)->setWidth($columnWidth / 5.4);
}
++$columnID;
}
}
$rowID = 1;
if (isset($worksheet->Table->Row)) {
$additionalMergedCells = 0;
foreach ($worksheet->Table->Row as $rowData) {
$rowHasData = false;
$row_ss = self::getAttributes($rowData, $namespaces['ss']);
if (isset($row_ss['Index'])) {
$rowID = (int) $row_ss['Index'];
}
$columnID = 'A';
foreach ($rowData->Cell as $cell) {
$cell_ss = self::getAttributes($cell, $namespaces['ss']);
if (isset($cell_ss['Index'])) {
$columnID = Coordinate::stringFromColumnIndex((int) $cell_ss['Index']);
}
$cellRange = $columnID . $rowID;
if ($this->getReadFilter() !== null) {
if (!$this->getReadFilter()->readCell($columnID, $rowID, $worksheetName)) {
++$columnID;
continue;
}
}
if (isset($cell_ss['HRef'])) {
$spreadsheet->getActiveSheet()->getCell($cellRange)->getHyperlink()->setUrl((string) $cell_ss['HRef']);
}
if ((isset($cell_ss['MergeAcross'])) || (isset($cell_ss['MergeDown']))) {
$columnTo = $columnID;
if (isset($cell_ss['MergeAcross'])) {
$additionalMergedCells += (int) $cell_ss['MergeAcross'];
$columnTo = Coordinate::stringFromColumnIndex(Coordinate::columnIndexFromString($columnID) + $cell_ss['MergeAcross']);
}
$rowTo = $rowID;
if (isset($cell_ss['MergeDown'])) {
$rowTo = $rowTo + $cell_ss['MergeDown'];
}
$cellRange .= ':' . $columnTo . $rowTo;
$spreadsheet->getActiveSheet()->mergeCells($cellRange);
}
$hasCalculatedValue = false;
$cellDataFormula = '';
if (isset($cell_ss['Formula'])) {
$cellDataFormula = $cell_ss['Formula'];
$hasCalculatedValue = true;
}
if (isset($cell->Data)) {
$cellData = $cell->Data;
$cellValue = (string) $cellData;
$type = DataType::TYPE_NULL;
$cellData_ss = self::getAttributes($cellData, $namespaces['ss']);
if (isset($cellData_ss['Type'])) {
$cellDataType = $cellData_ss['Type'];
switch ($cellDataType) {
/*
const TYPE_STRING = 's';
const TYPE_FORMULA = 'f';
const TYPE_NUMERIC = 'n';
const TYPE_BOOL = 'b';
const TYPE_NULL = 'null';
const TYPE_INLINE = 'inlineStr';
const TYPE_ERROR = 'e';
*/
case 'String':
$type = DataType::TYPE_STRING;
break;
case 'Number':
$type = DataType::TYPE_NUMERIC;
$cellValue = (float) $cellValue;
if (floor($cellValue) == $cellValue) {
$cellValue = (int) $cellValue;
}
break;
case 'Boolean':
$type = DataType::TYPE_BOOL;
$cellValue = ($cellValue != 0);
break;
case 'DateTime':
$type = DataType::TYPE_NUMERIC;
$dateTime = new DateTime($cellValue, new DateTimeZone('UTC'));
$cellValue = Date::PHPToExcel($dateTime);
break;
case 'Error':
$type = DataType::TYPE_ERROR;
$hasCalculatedValue = false;
break;
}
}
if ($hasCalculatedValue) {
$type = DataType::TYPE_FORMULA;
$columnNumber = Coordinate::columnIndexFromString($columnID);
$cellDataFormula = AddressHelper::convertFormulaToA1($cellDataFormula, $rowID, $columnNumber);
}
$spreadsheet->getActiveSheet()->getCell($columnID . $rowID)->setValueExplicit((($hasCalculatedValue) ? $cellDataFormula : $cellValue), $type);
if ($hasCalculatedValue) {
$spreadsheet->getActiveSheet()->getCell($columnID . $rowID)->setCalculatedValue($cellValue);
}
$rowHasData = true;
}
if (isset($cell->Comment)) {
$this->parseCellComment($cell->Comment, $namespaces, $spreadsheet, $columnID, $rowID);
}
if (isset($cell_ss['StyleID'])) {
$style = (string) $cell_ss['StyleID'];
if ((isset($this->styles[$style])) && (!empty($this->styles[$style]))) {
//if (!$spreadsheet->getActiveSheet()->cellExists($columnID . $rowID)) {
// $spreadsheet->getActiveSheet()->getCell($columnID . $rowID)->setValue(null);
//}
$spreadsheet->getActiveSheet()->getStyle($cellRange)
->applyFromArray($this->styles[$style]);
}
}
++$columnID;
while ($additionalMergedCells > 0) {
++$columnID;
--$additionalMergedCells;
}
}
if ($rowHasData) {
if (isset($row_ss['Height'])) {
$rowHeight = $row_ss['Height'];
$spreadsheet->getActiveSheet()->getRowDimension($rowID)->setRowHeight((float) $rowHeight);
}
}
++$rowID;
}
if (isset($namespaces['x'])) {
$xmlX = $worksheet->children($namespaces['x']);
if (isset($xmlX->WorksheetOptions)) {
(new PageSettings($xmlX, $namespaces))->loadPageSettings($spreadsheet);
}
}
}
++$worksheetID;
}
// Globally scoped defined names
$activeWorksheet = $spreadsheet->setActiveSheetIndex(0);
if (isset($xml->Names[0])) {
foreach ($xml->Names[0] as $definedName) {
$definedName_ss = self::getAttributes($definedName, $namespaces['ss']);
$name = (string) $definedName_ss['Name'];
$definedValue = (string) $definedName_ss['RefersTo'];
$convertedValue = AddressHelper::convertFormulaToA1($definedValue);
if ($convertedValue[0] === '=') {
$convertedValue = substr($convertedValue, 1);
}
$spreadsheet->addDefinedName(DefinedName::createInstance($name, $activeWorksheet, $convertedValue));
}
}
// Return
return $spreadsheet;
}
protected function parseCellComment(
SimpleXMLElement $comment,
array $namespaces,
Spreadsheet $spreadsheet,
string $columnID,
int $rowID
): void {
$commentAttributes = $comment->attributes($namespaces['ss']);
$author = 'unknown';
if (isset($commentAttributes->Author)) {
$author = (string) $commentAttributes->Author;
}
$node = $comment->Data->asXML();
$annotation = strip_tags((string) $node);
$spreadsheet->getActiveSheet()->getComment($columnID . $rowID)
->setAuthor($author)
->setText($this->parseRichText($annotation));
}
protected function parseRichText(string $annotation): RichText
{
$value = new RichText();
$value->createText($annotation);
return $value;
}
private static function getAttributes(?SimpleXMLElement $simple, string $node): SimpleXMLElement
{
return ($simple === null)
? new SimpleXMLElement('<xml></xml>')
: ($simple->attributes($node) ?? new SimpleXMLElement('<xml></xml>'));
}
}