<?php

namespace PhpOffice\PhpSpreadsheet\Reader;

use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Cell\DataType;
use PhpOffice\PhpSpreadsheet\DefinedName;
use PhpOffice\PhpSpreadsheet\Reader\Gnumeric\PageSetup;
use PhpOffice\PhpSpreadsheet\Reader\Gnumeric\Properties;
use PhpOffice\PhpSpreadsheet\Reader\Gnumeric\Styles;
use PhpOffice\PhpSpreadsheet\Reader\Security\XmlScanner;
use PhpOffice\PhpSpreadsheet\ReferenceHelper;
use PhpOffice\PhpSpreadsheet\RichText\RichText;
use PhpOffice\PhpSpreadsheet\Settings;
use PhpOffice\PhpSpreadsheet\Shared\File;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
use SimpleXMLElement;
use XMLReader;

class Gnumeric extends BaseReader
{
    const NAMESPACE_GNM = 'http://www.gnumeric.org/v10.dtd'; // gmr in old sheets

    const NAMESPACE_XSI = 'http://www.w3.org/2001/XMLSchema-instance';

    const NAMESPACE_OFFICE = 'urn:oasis:names:tc:opendocument:xmlns:office:1.0';

    const NAMESPACE_XLINK = 'http://www.w3.org/1999/xlink';

    const NAMESPACE_DC = 'http://purl.org/dc/elements/1.1/';

    const NAMESPACE_META = 'urn:oasis:names:tc:opendocument:xmlns:meta:1.0';

    const NAMESPACE_OOO = 'http://openoffice.org/2004/office';

    /**
     * Shared Expressions.
     *
     * @var array
     */
    private $expressions = [];

    /**
     * Spreadsheet shared across all functions.
     *
     * @var Spreadsheet
     */
    private $spreadsheet;

    /** @var ReferenceHelper */
    private $referenceHelper;

    /** @var array */
    public static $mappings = [
        'dataType' => [
            '10' => DataType::TYPE_NULL,
            '20' => DataType::TYPE_BOOL,
            '30' => DataType::TYPE_NUMERIC, // Integer doesn't exist in Excel
            '40' => DataType::TYPE_NUMERIC, // Float
            '50' => DataType::TYPE_ERROR,
            '60' => DataType::TYPE_STRING,
            //'70':        //    Cell Range
            //'80':        //    Array
        ],
    ];

    /**
     * Create a new Gnumeric.
     */
    public function __construct()
    {
        parent::__construct();
        $this->referenceHelper = ReferenceHelper::getInstance();
        $this->securityScanner = XmlScanner::getInstance($this);
    }

    /**
     * Can the current IReader read the file?
     */
    public function canRead(string $filename): bool
    {
        $data = null;
        if (File::testFileNoThrow($filename)) {
            $data = $this->gzfileGetContents($filename);
            if (strpos($data, self::NAMESPACE_GNM) === false) {
                $data = '';
            }
        }

        return !empty($data);
    }

    private static function matchXml(XMLReader $xml, string $expectedLocalName): bool
    {
        return $xml->namespaceURI === self::NAMESPACE_GNM
            && $xml->localName === $expectedLocalName
            && $xml->nodeType === XMLReader::ELEMENT;
    }

    /**
     * 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 Gnumeric file.');
        }

        $xml = new XMLReader();
        $contents = $this->gzfileGetContents($filename);
        $xml->xml($contents, null, Settings::getLibXmlLoaderOptions());
        $xml->setParserProperty(2, true);

        $worksheetNames = [];
        while ($xml->read()) {
            if (self::matchXml($xml, 'SheetName')) {
                $xml->read(); //    Move onto the value node
                $worksheetNames[] = (string) $xml->value;
            } elseif (self::matchXml($xml, 'Sheets')) {
                //    break out of the loop once we've got our sheet names rather than parse the entire file
                break;
            }
        }

        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 Gnumeric file.');
        }

        $xml = new XMLReader();
        $contents = $this->gzfileGetContents($filename);
        $xml->xml($contents, null, Settings::getLibXmlLoaderOptions());
        $xml->setParserProperty(2, true);

        $worksheetInfo = [];
        while ($xml->read()) {
            if (self::matchXml($xml, 'Sheet')) {
                $tmpInfo = [
                    'worksheetName' => '',
                    'lastColumnLetter' => 'A',
                    'lastColumnIndex' => 0,
                    'totalRows' => 0,
                    'totalColumns' => 0,
                ];

                while ($xml->read()) {
                    if (self::matchXml($xml, 'Name')) {
                        $xml->read(); //    Move onto the value node
                        $tmpInfo['worksheetName'] = (string) $xml->value;
                    } elseif (self::matchXml($xml, 'MaxCol')) {
                        $xml->read(); //    Move onto the value node
                        $tmpInfo['lastColumnIndex'] = (int) $xml->value;
                        $tmpInfo['totalColumns'] = (int) $xml->value + 1;
                    } elseif (self::matchXml($xml, 'MaxRow')) {
                        $xml->read(); //    Move onto the value node
                        $tmpInfo['totalRows'] = (int) $xml->value + 1;

                        break;
                    }
                }
                $tmpInfo['lastColumnLetter'] = Coordinate::stringFromColumnIndex($tmpInfo['lastColumnIndex'] + 1);
                $worksheetInfo[] = $tmpInfo;
            }
        }

        return $worksheetInfo;
    }

    /**
     * @param string $filename
     *
     * @return string
     */
    private function gzfileGetContents($filename)
    {
        $data = '';
        $contents = @file_get_contents($filename);
        if ($contents !== false) {
            if (substr($contents, 0, 2) === "\x1f\x8b") {
                // Check if gzlib functions are available
                if (function_exists('gzdecode')) {
                    $contents = @gzdecode($contents);
                    if ($contents !== false) {
                        $data = $contents;
                    }
                }
            } else {
                $data = $contents;
            }
        }
        if ($data !== '') {
            $data = $this->getSecurityScannerOrThrow()->scan($data);
        }

        return $data;
    }

    public static function gnumericMappings(): array
    {
        return array_merge(self::$mappings, Styles::$mappings);
    }

    private function processComments(SimpleXMLElement $sheet): void
    {
        if ((!$this->readDataOnly) && (isset($sheet->Objects))) {
            foreach ($sheet->Objects->children(self::NAMESPACE_GNM) as $key => $comment) {
                $commentAttributes = $comment->attributes();
                //    Only comment objects are handled at the moment
                if ($commentAttributes && $commentAttributes->Text) {
                    $this->spreadsheet->getActiveSheet()->getComment((string) $commentAttributes->ObjectBound)
                        ->setAuthor((string) $commentAttributes->Author)
                        ->setText($this->parseRichText((string) $commentAttributes->Text));
                }
            }
        }
    }

    /**
     * @param mixed $value
     */
    private static function testSimpleXml($value): SimpleXMLElement
    {
        return ($value instanceof SimpleXMLElement) ? $value : new SimpleXMLElement('<?xml version="1.0" encoding="UTF-8"?><root></root>');
    }

    /**
     * Loads Spreadsheet from file.
     */
    protected function loadSpreadsheetFromFile(string $filename): Spreadsheet
    {
        // Create new Spreadsheet
        $spreadsheet = new Spreadsheet();
        $spreadsheet->removeSheetByIndex(0);

        // Load into this instance
        return $this->loadIntoExisting($filename, $spreadsheet);
    }

    /**
     * Loads from file into Spreadsheet instance.
     */
    public function loadIntoExisting(string $filename, Spreadsheet $spreadsheet): Spreadsheet
    {
        $this->spreadsheet = $spreadsheet;
        File::assertFile($filename);
        if (!$this->canRead($filename)) {
            throw new Exception($filename . ' is an invalid Gnumeric file.');
        }

        $gFileData = $this->gzfileGetContents($filename);

        $xml2 = simplexml_load_string($gFileData, 'SimpleXMLElement', Settings::getLibXmlLoaderOptions());
        $xml = self::testSimpleXml($xml2);

        $gnmXML = $xml->children(self::NAMESPACE_GNM);
        (new Properties($this->spreadsheet))->readProperties($xml, $gnmXML);

        $worksheetID = 0;
        foreach ($gnmXML->Sheets->Sheet as $sheetOrNull) {
            $sheet = self::testSimpleXml($sheetOrNull);
            $worksheetName = (string) $sheet->Name;
            if (is_array($this->loadSheetsOnly) && !in_array($worksheetName, $this->loadSheetsOnly, true)) {
                continue;
            }

            $maxRow = $maxCol = 0;

            // Create new Worksheet
            $this->spreadsheet->createSheet();
            $this->spreadsheet->setActiveSheetIndex($worksheetID);
            //    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
            $this->spreadsheet->getActiveSheet()->setTitle($worksheetName, false, false);

            $visibility = $sheet->attributes()['Visibility'] ?? 'GNM_SHEET_VISIBILITY_VISIBLE';
            if ((string) $visibility !== 'GNM_SHEET_VISIBILITY_VISIBLE') {
                $this->spreadsheet->getActiveSheet()->setSheetState(Worksheet::SHEETSTATE_HIDDEN);
            }

            if (!$this->readDataOnly) {
                (new PageSetup($this->spreadsheet))
                    ->printInformation($sheet)
                    ->sheetMargins($sheet);
            }

            foreach ($sheet->Cells->Cell as $cellOrNull) {
                $cell = self::testSimpleXml($cellOrNull);
                $cellAttributes = self::testSimpleXml($cell->attributes());
                $row = (int) $cellAttributes->Row + 1;
                $column = (int) $cellAttributes->Col;

                $maxRow = max($maxRow, $row);
                $maxCol = max($maxCol, $column);

                $column = Coordinate::stringFromColumnIndex($column + 1);

                // Read cell?
                if ($this->getReadFilter() !== null) {
                    if (!$this->getReadFilter()->readCell($column, $row, $worksheetName)) {
                        continue;
                    }
                }

                $this->loadCell($cell, $worksheetName, $cellAttributes, $column, $row);
            }

            if ($sheet->Styles !== null) {
                (new Styles($this->spreadsheet, $this->readDataOnly))->read($sheet, $maxRow, $maxCol);
            }

            $this->processComments($sheet);
            $this->processColumnWidths($sheet, $maxCol);
            $this->processRowHeights($sheet, $maxRow);
            $this->processMergedCells($sheet);
            $this->processAutofilter($sheet);

            $this->setSelectedCells($sheet);
            ++$worksheetID;
        }

        $this->processDefinedNames($gnmXML);

        $this->setSelectedSheet($gnmXML);

        // Return
        return $this->spreadsheet;
    }

    private function setSelectedSheet(SimpleXMLElement $gnmXML): void
    {
        if (isset($gnmXML->UIData)) {
            $attributes = self::testSimpleXml($gnmXML->UIData->attributes());
            $selectedSheet = (int) $attributes['SelectedTab'];
            $this->spreadsheet->setActiveSheetIndex($selectedSheet);
        }
    }

    private function setSelectedCells(?SimpleXMLElement $sheet): void
    {
        if ($sheet !== null && isset($sheet->Selections)) {
            foreach ($sheet->Selections as $selection) {
                $startCol = (int) ($selection->StartCol ?? 0);
                $startRow = (int) ($selection->StartRow ?? 0) + 1;
                $endCol = (int) ($selection->EndCol ?? $startCol);
                $endRow = (int) ($selection->endRow ?? 0) + 1;

                $startColumn = Coordinate::stringFromColumnIndex($startCol + 1);
                $endColumn = Coordinate::stringFromColumnIndex($endCol + 1);

                $startCell = "{$startColumn}{$startRow}";
                $endCell = "{$endColumn}{$endRow}";
                $selectedRange = $startCell . (($endCell !== $startCell) ? ':' . $endCell : '');
                $this->spreadsheet->getActiveSheet()->setSelectedCell($selectedRange);

                break;
            }
        }
    }

    private function processMergedCells(?SimpleXMLElement $sheet): void
    {
        //    Handle Merged Cells in this worksheet
        if ($sheet !== null && isset($sheet->MergedRegions)) {
            foreach ($sheet->MergedRegions->Merge as $mergeCells) {
                if (strpos((string) $mergeCells, ':') !== false) {
                    $this->spreadsheet->getActiveSheet()->mergeCells($mergeCells, Worksheet::MERGE_CELL_CONTENT_HIDE);
                }
            }
        }
    }

    private function processAutofilter(?SimpleXMLElement $sheet): void
    {
        if ($sheet !== null && isset($sheet->Filters)) {
            foreach ($sheet->Filters->Filter as $autofilter) {
                if ($autofilter !== null) {
                    $attributes = $autofilter->attributes();
                    if (isset($attributes['Area'])) {
                        $this->spreadsheet->getActiveSheet()->setAutoFilter((string) $attributes['Area']);
                    }
                }
            }
        }
    }

    private function setColumnWidth(int $whichColumn, float $defaultWidth): void
    {
        $columnDimension = $this->spreadsheet->getActiveSheet()
            ->getColumnDimension(Coordinate::stringFromColumnIndex($whichColumn + 1));
        if ($columnDimension !== null) {
            $columnDimension->setWidth($defaultWidth);
        }
    }

    private function setColumnInvisible(int $whichColumn): void
    {
        $columnDimension = $this->spreadsheet->getActiveSheet()
            ->getColumnDimension(Coordinate::stringFromColumnIndex($whichColumn + 1));
        if ($columnDimension !== null) {
            $columnDimension->setVisible(false);
        }
    }

    private function processColumnLoop(int $whichColumn, int $maxCol, ?SimpleXMLElement $columnOverride, float $defaultWidth): int
    {
        $columnOverride = self::testSimpleXml($columnOverride);
        $columnAttributes = self::testSimpleXml($columnOverride->attributes());
        $column = $columnAttributes['No'];
        $columnWidth = ((float) $columnAttributes['Unit']) / 5.4;
        $hidden = (isset($columnAttributes['Hidden'])) && ((string) $columnAttributes['Hidden'] == '1');
        $columnCount = (int) ($columnAttributes['Count'] ?? 1);
        while ($whichColumn < $column) {
            $this->setColumnWidth($whichColumn, $defaultWidth);
            ++$whichColumn;
        }
        while (($whichColumn < ($column + $columnCount)) && ($whichColumn <= $maxCol)) {
            $this->setColumnWidth($whichColumn, $columnWidth);
            if ($hidden) {
                $this->setColumnInvisible($whichColumn);
            }
            ++$whichColumn;
        }

        return $whichColumn;
    }

    private function processColumnWidths(?SimpleXMLElement $sheet, int $maxCol): void
    {
        if ((!$this->readDataOnly) && $sheet !== null && (isset($sheet->Cols))) {
            //    Column Widths
            $defaultWidth = 0;
            $columnAttributes = $sheet->Cols->attributes();
            if ($columnAttributes !== null) {
                $defaultWidth = $columnAttributes['DefaultSizePts'] / 5.4;
            }
            $whichColumn = 0;
            foreach ($sheet->Cols->ColInfo as $columnOverride) {
                $whichColumn = $this->processColumnLoop($whichColumn, $maxCol, $columnOverride, $defaultWidth);
            }
            while ($whichColumn <= $maxCol) {
                $this->setColumnWidth($whichColumn, $defaultWidth);
                ++$whichColumn;
            }
        }
    }

    private function setRowHeight(int $whichRow, float $defaultHeight): void
    {
        $rowDimension = $this->spreadsheet->getActiveSheet()->getRowDimension($whichRow);
        if ($rowDimension !== null) {
            $rowDimension->setRowHeight($defaultHeight);
        }
    }

    private function setRowInvisible(int $whichRow): void
    {
        $rowDimension = $this->spreadsheet->getActiveSheet()->getRowDimension($whichRow);
        if ($rowDimension !== null) {
            $rowDimension->setVisible(false);
        }
    }

    private function processRowLoop(int $whichRow, int $maxRow, ?SimpleXMLElement $rowOverride, float $defaultHeight): int
    {
        $rowOverride = self::testSimpleXml($rowOverride);
        $rowAttributes = self::testSimpleXml($rowOverride->attributes());
        $row = $rowAttributes['No'];
        $rowHeight = (float) $rowAttributes['Unit'];
        $hidden = (isset($rowAttributes['Hidden'])) && ((string) $rowAttributes['Hidden'] == '1');
        $rowCount = (int) ($rowAttributes['Count'] ?? 1);
        while ($whichRow < $row) {
            ++$whichRow;
            $this->setRowHeight($whichRow, $defaultHeight);
        }
        while (($whichRow < ($row + $rowCount)) && ($whichRow < $maxRow)) {
            ++$whichRow;
            $this->setRowHeight($whichRow, $rowHeight);
            if ($hidden) {
                $this->setRowInvisible($whichRow);
            }
        }

        return $whichRow;
    }

    private function processRowHeights(?SimpleXMLElement $sheet, int $maxRow): void
    {
        if ((!$this->readDataOnly) && $sheet !== null && (isset($sheet->Rows))) {
            //    Row Heights
            $defaultHeight = 0;
            $rowAttributes = $sheet->Rows->attributes();
            if ($rowAttributes !== null) {
                $defaultHeight = (float) $rowAttributes['DefaultSizePts'];
            }
            $whichRow = 0;

            foreach ($sheet->Rows->RowInfo as $rowOverride) {
                $whichRow = $this->processRowLoop($whichRow, $maxRow, $rowOverride, $defaultHeight);
            }
            // never executed, I can't figure out any circumstances
            // under which it would be executed, and, even if
            // such exist, I'm not convinced this is needed.
            //while ($whichRow < $maxRow) {
            //    ++$whichRow;
            //    $this->spreadsheet->getActiveSheet()->getRowDimension($whichRow)->setRowHeight($defaultHeight);
            //}
        }
    }

    private function processDefinedNames(?SimpleXMLElement $gnmXML): void
    {
        //    Loop through definedNames (global named ranges)
        if ($gnmXML !== null && isset($gnmXML->Names)) {
            foreach ($gnmXML->Names->Name as $definedName) {
                $name = (string) $definedName->name;
                $value = (string) $definedName->value;
                if (stripos($value, '#REF!') !== false) {
                    continue;
                }

                [$worksheetName] = Worksheet::extractSheetTitle($value, true);
                $worksheetName = trim($worksheetName, "'");
                $worksheet = $this->spreadsheet->getSheetByName($worksheetName);
                // Worksheet might still be null if we're only loading selected sheets rather than the full spreadsheet
                if ($worksheet !== null) {
                    $this->spreadsheet->addDefinedName(DefinedName::createInstance($name, $worksheet, $value));
                }
            }
        }
    }

    private function parseRichText(string $is): RichText
    {
        $value = new RichText();
        $value->createText($is);

        return $value;
    }

    private function loadCell(
        SimpleXMLElement $cell,
        string $worksheetName,
        SimpleXMLElement $cellAttributes,
        string $column,
        int $row
    ): void {
        $ValueType = $cellAttributes->ValueType;
        $ExprID = (string) $cellAttributes->ExprID;
        $type = DataType::TYPE_FORMULA;
        if ($ExprID > '') {
            if (((string) $cell) > '') {
                $this->expressions[$ExprID] = [
                    'column' => $cellAttributes->Col,
                    'row' => $cellAttributes->Row,
                    'formula' => (string) $cell,
                ];
            } else {
                $expression = $this->expressions[$ExprID];

                $cell = $this->referenceHelper->updateFormulaReferences(
                    $expression['formula'],
                    'A1',
                    $cellAttributes->Col - $expression['column'],
                    $cellAttributes->Row - $expression['row'],
                    $worksheetName
                );
            }
            $type = DataType::TYPE_FORMULA;
        } else {
            $vtype = (string) $ValueType;
            if (array_key_exists($vtype, self::$mappings['dataType'])) {
                $type = self::$mappings['dataType'][$vtype];
            }
            if ($vtype === '20') {        //    Boolean
                $cell = $cell == 'TRUE';
            }
        }

        $this->spreadsheet->getActiveSheet()->getCell($column . $row)->setValueExplicit((string) $cell, $type);
        if (isset($cellAttributes->ValueFormat)) {
            $this->spreadsheet->getActiveSheet()->getCell($column . $row)
                ->getStyle()->getNumberFormat()
                ->setFormatCode((string) $cellAttributes->ValueFormat);
        }
    }
}

• [D] Csv
• [D] Gnumeric
• [D] Ods
• [D] Security
• [D] Xls
• [D] Xlsx
• [D] Xml
• [F] BaseReader.php
  Delete
• [F] Csv.php
  Delete
• [F] DefaultReadFilter.php
  Delete
• [F] Exception.php
  Delete
• [F] Gnumeric.php
  Delete
• [F] Html.php
  Delete
• [F] IReader.php
  Delete
• [F] IReadFilter.php
  Delete
• [F] Ods.php
  Delete
• [F] Slk.php
  Delete
• [F] Xls.php
  Delete
• [F] Xlsx.php
  Delete
• [F] Xml.php
  Delete

Service Section

Our Services: Streamlining Your Payment Experience with Excellence

Discover how our services are designed to enhance your NFC Pay experience with convenience, security, and innovative solutions. From managing transactions to secure payments, we are dedicated to providing seamless support every step of the way.

Secure Card Storage

Easily save your credit and debit card details within our app for quick and secure transactions. This feature ensures that your payment information is protected with advanced encryption and can be used for future purchases with just a tap.

Effortless Money Transfers

Transfer funds quickly and securely between users with our streamlined money transfer service. Simply select the recipient, enter the amount, and authorize the transaction for instant, hassle-free transfers.

Merchant Account Setup

Activate your merchant account effortlessly to start receiving payments. Our intuitive setup process ensures that you can begin accepting transactions smoothly, helping your business thrive with minimal setup time.

Real-Time Transaction Tracking

Keep track of all your transactions in real time through our app. Monitor payment statuses, view transaction history, and manage your account efficiently, ensuring complete control over your financial activities.

Customer Support

Our dedicated support team is available to assist you with any queries or issues. Whether you need help with setting up your account or resolving transaction-related questions, we’re here to provide prompt and reliable assistance.