AlkantarClanX12
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<?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.
*
* @since 1.0.0
* @var array<string, string>
*/
public array $import_formats = array();
/**
* 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;
}
// Initiate here, because function call not possible outside a class method.
$this->import_formats = array();
$this->import_formats['csv'] = __( 'CSV - Character-Separated Values', 'tablepress' );
if ( $this->html_import_support_available ) {
$this->import_formats['html'] = __( 'HTML - Hypertext Markup Language', 'tablepress' );
}
$this->import_formats['json'] = __( 'JSON - JavaScript Object Notation', 'tablepress' );
$this->import_formats['xls'] = __( 'XLS - Microsoft Excel 97-2003 (experimental)', 'tablepress' );
$this->import_formats['xlsx'] = __( 'XLSX - Microsoft Excel 2007-2019 (experimental)', 'tablepress' );
}
/**
* 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