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Edit File: class-import-legacy.php

<?php /** * TablePress Table Import Class * * @package TablePress * @subpackage Export/Import * @author Tobias Bäthge * @since 1.0.0 */ // Prohibit direct script loading. defined( 'ABSPATH' ) || die( 'No direct script access allowed!' ); /** * TablePress Table Import Class * * @package TablePress * @subpackage Export/Import * @author Tobias Bäthge * @since 1.0.0 */ class TablePress_Import_Legacy extends TablePress_Import_Base { /** * File/Data Formats that are available for import. * * The constructor also adds 'html', if the PHP prerequisites are met. * * @since 1.0.0 * @var string[] */ public array $import_formats = array( 'csv', 'json', 'xls', 'xlsx' ); /** * Whether HTML import support is available in the PHP installation on the server. * * @since 1.0.0 */ public bool $html_import_support_available = false; /** * Data to be imported. * * @since 1.0.0 */ protected string $import_data; /** * Imported table. * * @since 1.0.0 * @var array<string, mixed>|false */ protected $imported_table = false; /** * Initialize the Import class. * * @since 1.0.0 */ public function __construct() { if ( class_exists( 'DOMDocument', false ) && function_exists( 'simplexml_import_dom' ) && function_exists( 'libxml_use_internal_errors' ) ) { $this->html_import_support_available = true; } if ( $this->html_import_support_available ) { $this->import_formats[] = 'html'; } } /** * Import a table. * * @since 1.0.0 * * @param string $format Import format. * @param string $data Data to import. * @return array<string, mixed>|false Table array on success, false on error. */ public function import_table( string $format, string $data ) /* : array|false */ { /** * Filters the data that is to be imported. * * @since 1.8.1 * * @param string $data Data to import. * @param string $format Import format. */ $this->import_data = apply_filters( 'tablepress_import_table_data', $data, $format ); if ( ! in_array( $format, array( 'xlsx', 'xls' ), true ) ) { $this->fix_table_encoding(); } switch ( $format ) { case 'csv': $this->import_csv(); break; case 'html': $this->import_html(); break; case 'json': $this->import_json(); break; case 'xlsx': $this->import_xlsx(); break; case 'xls': $this->import_xls(); break; default: return false; } if ( false === $this->imported_table ) { return false; } // Make sure that cells are stored as strings. array_walk_recursive( $this->imported_table['data'], static function ( /* string|int|float|bool|null */ &$cell_content, int $col_idx ): void { $cell_content = (string) $cell_content; }, ); return $this->imported_table; } /** * Import CSV data. * * @since 1.0.0 */ protected function import_csv(): void { $csv_parser = TablePress::load_class( 'CSV_Parser', 'csv-parser.class.php', 'libraries' ); $csv_parser->load_data( $this->import_data ); $delimiter = $csv_parser->find_delimiter(); $data = $csv_parser->parse( $delimiter ); $this->pad_array_to_max_cols( $data ); $this->normalize_line_endings( $data ); $this->imported_table = array( 'data' => $data ); } /** * Import HTML data. * * @since 1.0.0 */ protected function import_html(): void { if ( ! $this->html_import_support_available ) { return; } TablePress::load_file( 'html-parser.class.php', 'libraries' ); $table = HTML_Parser::parse( $this->import_data ); if ( is_wp_error( $table ) ) { $this->imported_table = false; return; } $this->pad_array_to_max_cols( $table['data'] ); $this->normalize_line_endings( $table['data'] ); $this->imported_table = $table; } /** * Import JSON data. * * @since 1.0.0 */ protected function import_json(): void { $json_table = json_decode( $this->import_data, true ); // Check if JSON could be decoded. if ( is_null( $json_table ) ) { $json_error = json_last_error_msg(); $output = '<strong>' . __( 'The imported file contains errors:', 'tablepress' ) . "</strong><br><br>JSON error: {$json_error}<br>"; wp_die( $output, 'Import Error', array( 'response' => 200, 'back_link' => true ) ); } // Specifically cast to an array again. $json_table = (array) $json_table; if ( isset( $json_table['data'] ) ) { // JSON data contained a full export. $table = $json_table; } else { // JSON data contained only the data of a table, but no options. $table = array( 'data' => array() ); foreach ( $json_table as $row ) { $table['data'][] = array_values( (array) $row ); } } $this->pad_array_to_max_cols( $table['data'] ); $this->imported_table = $table; } /** * Import Microsoft Excel 97-2003 data. * * @since 1.1.0 */ protected function import_xls(): void { $excel_reader = TablePress::load_class( 'Spreadsheet_Excel_Reader', 'excel-reader.class.php', 'libraries', $this->import_data ); // Loop through Excel file and retrieve value and colspan/rowspan properties for each cell. $sheet = 0; // 0 means first sheet of the Workbook $table = array(); $num_rows = $excel_reader->rowcount( $sheet ); $num_columns = $excel_reader->colcount( $sheet ); for ( $row = 1; $row <= $num_rows; $row++ ) { $table_row = array(); for ( $column = 1; $column <= $num_columns; $column++ ) { $cell = array(); $cell['rowspan'] = $excel_reader->rowspan( $row, $column, $sheet ); $cell['colspan'] = $excel_reader->colspan( $row, $column, $sheet ); $cell['val'] = $excel_reader->val( $row, $column, $sheet ); $table_row[] = $cell; } $table[] = $table_row; } // Transform colspan/rowspan properties to TablePress equivalent (cell content). foreach ( $table as $row_idx => $row ) { foreach ( $row as $col_idx => $cell ) { if ( 1 === $cell['rowspan'] && 1 === $cell['colspan'] ) { continue; } if ( 1 < $cell['colspan'] ) { for ( $i = 1; $i < $cell['colspan']; $i++ ) { $table[ $row_idx ][ $col_idx + $i ]['val'] = '#colspan#'; } } if ( 1 < $cell['rowspan'] ) { for ( $i = 1; $i < $cell['rowspan']; $i++ ) { $table[ $row_idx + $i ][ $col_idx ]['val'] = '#rowspan#'; } } if ( 1 < $cell['rowspan'] && 1 < $cell['colspan'] ) { for ( $i = 1; $i < $cell['rowspan']; $i++ ) { for ( $j = 1; $j < $cell['colspan']; $j++ ) { $table[ $row_idx + $i ][ $col_idx + $j ]['val'] = '#span#'; } } } } } // Flatten value property to two-dimensional array. foreach ( $table as &$row ) { foreach ( $row as &$cell ) { $cell = $cell['val']; } unset( $cell ); // Unset use-by-reference parameter of foreach loop. } unset( $row ); // Unset use-by-reference parameter of foreach loop. $this->imported_table = array( 'data' => $table ); } /** * Import Microsoft Excel 2007-2019 data. * * @since 1.1.0 */ protected function import_xlsx(): void { TablePress::load_file( 'simplexlsx.class.php', 'libraries' ); $xlsx_file = \Shuchkin\SimpleXLSX::parse( $this->import_data, true ); if ( ! $xlsx_file ) { $output = '<strong>' . __( 'The imported file contains errors:', 'tablepress' ) . '</strong><br><br>' . \Shuchkin\SimpleXLSX::parseError() . '<br>'; wp_die( $output, 'Import Error', array( 'response' => 200, 'back_link' => true ) ); } $this->imported_table = array( 'data' => $xlsx_file->rows() ); } /** * Fixes the encoding to UTF-8 for the entire string that is to be imported. * * @since 1.0.0 * * @link http://stevephillips.me/blog/dealing-php-and-character-encoding */ protected function fix_table_encoding(): void { // Check and remove possible UTF-8 Byte-Order Mark (BOM). $bom = pack( 'CCC', 0xef, 0xbb, 0xbf ); if ( str_starts_with( $this->import_data, $bom ) ) { $this->import_data = substr( $this->import_data, 3 ); // If data has a BOM, it's UTF-8, so further checks unnecessary. return; } // Require the iconv() function for the following checks. if ( ! function_exists( 'iconv' ) ) { return; } // Check for possible UTF-16 BOMs ("little endian" and "big endian") and try to convert the data to UTF-8. if ( str_starts_with( $this->import_data, "\xFF\xFE" ) || str_starts_with( $this->import_data, "\xFE\xFF" ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged $data = @iconv( 'UTF-16', 'UTF-8', $this->import_data ); if ( false !== $data ) { $this->import_data = $data; return; } } // Detect the character encoding and convert to UTF-8, if it's different. if ( function_exists( 'mb_detect_encoding' ) ) { $current_encoding = mb_detect_encoding( $this->import_data, 'ASCII, UTF-8, ISO-8859-1' ); if ( 'UTF-8' !== $current_encoding ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged $data = @iconv( $current_encoding, 'UTF-8', $this->import_data ); // @phpstan-ignore argument.type if ( false !== $data ) { $this->import_data = $data; return; } } } } /** * Replaces Windows line breaks \r\n with Unix line breaks \n. * * This function uses call by reference to save PHP memory on large arrays. * * @since 2.0.0 * * @param array<int, array<int, string>> $an_array Array in which Windows line breaks should be replaced by Unix line breaks. */ protected function normalize_line_endings( array &$an_array ): void { array_walk_recursive( $an_array, static function ( string &$cell_content, int $col_idx ): void { $cell_content = str_replace( "\r\n", "\n", $cell_content ); }, ); } } // class TablePress_Import_Legacy
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