| @@ -7,8 +7,10 @@ | ||
| 7 | 7 | * @author Tobias Bäthge |
| 8 | 8 | * @since 1.0.0 |
| 9 | 9 | */ |
| 10 | 10 | |
| 11 | +declare(strict_types=1); | |
| 12 | + | |
| 11 | 13 | // Prohibit direct script loading. |
| 12 | 14 | defined( 'ABSPATH' ) || die( 'No direct script access allowed!' ); |
| 13 | 15 | |
| 14 | 16 | /** |
| @@ -21,14 +23,22 @@ | ||
| 21 | 23 | */ |
| 22 | 24 | class TablePress_Export { |
| 23 | 25 | |
| 24 | 26 | /** |
| 27 | + * Available exporters for the export. | |
| 28 | + * | |
| 29 | + * @since 3.4.0 | |
| 30 | + * @var array<string, array{label: string, class: string, file: string, folder: string}> | |
| 31 | + */ | |
| 32 | + protected array $exporters = array(); | |
| 33 | + | |
| 34 | + /** | |
| 25 | 35 | * File/Data Formats that are available for the export. |
| 26 | 36 | * |
| 27 | 37 | * @since 1.0.0 |
| 28 | 38 | * @var array<string, string> |
| 29 | 39 | */ |
| 30 | - public $export_formats = array(); | |
| 40 | + public array $export_formats = array(); | |
| 31 | 41 | |
| 32 | 42 | /** |
| 33 | 43 | * Delimiters for the CSV export. |
| 34 | 44 | * |
| @@ -34,30 +44,58 @@ | ||
| 34 | 44 | * |
| 35 | 45 | * @since 1.0.0 |
| 36 | 46 | * @var array<string, string> |
| 37 | 47 | */ |
| 38 | - public $csv_delimiters = array(); | |
| 48 | + public array $csv_delimiters = array(); | |
| 39 | 49 | |
| 40 | 50 | /** |
| 41 | 51 | * Whether ZIP archive support is available in the PHP installation on the server. |
| 42 | 52 | * |
| 43 | 53 | * @since 1.0.0 |
| 44 | - * @var bool | |
| 45 | 54 | */ |
| 46 | - public $zip_support_available = false; | |
| 55 | + public bool $zip_support_available = false; | |
| 47 | 56 | |
| 48 | 57 | /** |
| 49 | - * Initialize the Export class. | |
| 58 | + * Initializes the Export class. | |
| 50 | 59 | * |
| 51 | 60 | * @since 1.0.0 |
| 52 | 61 | */ |
| 53 | 62 | public function __construct() { |
| 54 | 63 | // Initiate here, because function call not possible outside a class method. |
| 55 | - $this->export_formats = array( | |
| 56 | - 'csv' => __( 'CSV - Character-Separated Values', 'tablepress' ), | |
| 57 | - 'html' => __( 'HTML - Hypertext Markup Language', 'tablepress' ), | |
| 58 | - 'json' => __( 'JSON - JavaScript Object Notation', 'tablepress' ), | |
| 64 | + $this->exporters = array( | |
| 65 | + 'csv' => array( | |
| 66 | + 'label' => __( 'CSV - Character-Separated Values', 'tablepress' ), | |
| 67 | + 'class' => \TablePress\Export\CSV_Exporter::class, | |
| 68 | + 'file' => 'class-exporter-csv.php', | |
| 69 | + 'folder' => 'classes/exporters', | |
| 70 | + ), | |
| 71 | + 'html' => array( | |
| 72 | + 'label' => __( 'HTML - Hypertext Markup Language', 'tablepress' ), | |
| 73 | + 'class' => \TablePress\Export\HTML_Exporter::class, | |
| 74 | + 'file' => 'class-exporter-html.php', | |
| 75 | + 'folder' => 'classes/exporters', | |
| 76 | + ), | |
| 77 | + 'json' => array( | |
| 78 | + 'label' => __( 'JSON - JavaScript Object Notation', 'tablepress' ), | |
| 79 | + 'class' => \TablePress\Export\JSON_Exporter::class, | |
| 80 | + 'file' => 'class-exporter-json.php', | |
| 81 | + 'folder' => 'classes/exporters', | |
| 82 | + ), | |
| 59 | 83 | ); |
| 84 | + | |
| 85 | + /** | |
| 86 | + * Filters the available export formats. | |
| 87 | + * | |
| 88 | + * @since 3.4.0 | |
| 89 | + * | |
| 90 | + * @param array<string, array{label: string, class: string, file: string, folder: string}> $exporters Associative array of available export formats. | |
| 91 | + */ | |
| 92 | + $this->exporters = apply_filters( 'tablepress_exporters', $this->exporters ); | |
| 93 | + | |
| 94 | + foreach ( $this->exporters as $format => $exporter ) { | |
| 95 | + $this->export_formats[ $format ] = $exporter['label']; | |
| 96 | + } | |
| 97 | + | |
| 60 | 98 | $this->csv_delimiters = array( |
| 61 | 99 | ';' => __( '; (semicolon)', 'tablepress' ), |
| 62 | 100 | ',' => __( ', (comma)', 'tablepress' ), |
| 63 | 101 | 'tab' => __( '\t (tabulator)', 'tablepress' ), |
| @@ -62,169 +100,44 @@ | ||
| 62 | 100 | ',' => __( ', (comma)', 'tablepress' ), |
| 63 | 101 | 'tab' => __( '\t (tabulator)', 'tablepress' ), |
| 64 | 102 | ); |
| 65 | 103 | |
| 66 | - /** This filter is documented in the WordPress function unzip_file() in wp-admin/includes/file.php */ | |
| 67 | - if ( class_exists( 'ZipArchive', false ) && apply_filters( 'unzip_file_use_ziparchive', true ) ) { | |
| 104 | + if ( class_exists( 'ZipArchive', false ) ) { | |
| 68 | 105 | $this->zip_support_available = true; |
| 69 | 106 | } |
| 70 | 107 | } |
| 71 | 108 | |
| 72 | 109 | /** |
| 73 | - * Export a table. | |
| 110 | + * Exports a table to the specified format using the corresponding exporter class. | |
| 74 | 111 | * |
| 75 | 112 | * @since 1.0.0 |
| 113 | + * @since 3.4.0 The $options parameter is now an array. If a string is passed, it is treated as the CSV delimiter (deprecated). | |
| 76 | 114 | * |
| 77 | - * @param array<string, mixed> $table Table to be exported. | |
| 78 | - * @param string $export_format Format for the export ('csv', 'html', 'json'). | |
| 79 | - * @param string $csv_delimiter Delimiter for CSV export. | |
| 80 | - * @return string Exported table (only data for CSV and HTML, full tables (including options) for JSON). | |
| 115 | + * @param array<string, mixed> $table Table to be exported. | |
| 116 | + * @param string $export_format Format for the export, e.g. 'csv', 'html', or 'json'. | |
| 117 | + * @param array<string, mixed>|string $options Options for the export if an array, or the CSV delimiter if a string. The latter is deprecated. | |
| 118 | + * @return string Exported table data. | |
| 81 | 119 | */ |
| 82 | - public function export_table( array $table, string $export_format, string $csv_delimiter ): string { | |
| 83 | - switch ( $export_format ) { | |
| 84 | - case 'csv': | |
| 85 | - $output = ''; | |
| 86 | - if ( 'tab' === $csv_delimiter ) { | |
| 87 | - $csv_delimiter = "\t"; | |
| 88 | - } | |
| 89 | - foreach ( $table['data'] as $row_idx => $row ) { | |
| 90 | - $csv_row = array(); | |
| 91 | - foreach ( $row as $column_idx => $cell_content ) { | |
| 92 | - $csv_row[] = $this->csv_wrap_and_escape( $cell_content, $csv_delimiter ); | |
| 93 | - } | |
| 94 | - $output .= implode( $csv_delimiter, $csv_row ); | |
| 95 | - $output .= "\n"; | |
| 96 | - } | |
| 97 | - break; | |
| 98 | - case 'html': | |
| 99 | - $num_rows = count( $table['data'] ); | |
| 100 | - $last_row_idx = $num_rows - 1; | |
| 101 | - $thead = ''; | |
| 102 | - $tfoot = ''; | |
| 103 | - $tbody = array(); | |
| 104 | - | |
| 105 | - foreach ( $table['data'] as $row_idx => $row ) { | |
| 106 | - // First row, need to check for head (but only if at least two rows). | |
| 107 | - if ( 0 === $row_idx && $table['options']['table_head'] && $num_rows > 1 ) { | |
| 108 | - $thead = $this->html_render_row( $row, 'th' ); | |
| 109 | - continue; | |
| 110 | - } | |
| 111 | - // Last row, need to check for footer (but only if at least two rows). | |
| 112 | - if ( $last_row_idx === $row_idx && $table['options']['table_foot'] && $num_rows > 1 ) { | |
| 113 | - $tfoot = $this->html_render_row( $row, 'th' ); | |
| 114 | - continue; | |
| 115 | - } | |
| 116 | - // Neither first nor last row (with respective head/foot enabled), so render as body row. | |
| 117 | - $tbody[] = $this->html_render_row( $row, 'td' ); | |
| 118 | - } | |
| 119 | - | |
| 120 | - // <thead>, <tfoot>, and <tbody> tags. | |
| 121 | - if ( ! empty( $thead ) ) { | |
| 122 | - $thead = "\t<thead>\n{$thead}\t</thead>\n"; | |
| 123 | - } | |
| 124 | - if ( ! empty( $tfoot ) ) { | |
| 125 | - $tfoot = "\t<tfoot>\n{$tfoot}\t</tfoot>\n"; | |
| 126 | - } | |
| 127 | - $tbody = "\t<tbody>\n" . implode( '', $tbody ) . "\t</tbody>\n"; | |
| 128 | - | |
| 129 | - $output = "<table>\n" . $thead . $tfoot . $tbody . "</table>\n"; | |
| 130 | - break; | |
| 131 | - case 'json': | |
| 132 | - $output = wp_json_encode( $table, TABLEPRESS_JSON_OPTIONS ); | |
| 133 | - if ( false === $output ) { | |
| 134 | - $output = ''; | |
| 135 | - } | |
| 136 | - break; | |
| 137 | - default: | |
| 138 | - $output = ''; | |
| 120 | + public function export_table( array $table, string $export_format, /* array|string */ $options ): string { | |
| 121 | + if ( ! isset( $this->exporters[ $export_format ] ) ) { | |
| 122 | + return ''; | |
| 139 | 123 | } |
| 140 | 124 | |
| 141 | - return $output; | |
| 142 | - } | |
| 143 | - | |
| 144 | - /** | |
| 145 | - * Wrap and escape a cell for CSV export. | |
| 146 | - * | |
| 147 | - * @since 1.0.0 | |
| 148 | - * | |
| 149 | - * @param string $cell_content Content of a cell. | |
| 150 | - * @param string $delimiter CSV delimiter character. | |
| 151 | - * @return string Wrapped string for CSV export. | |
| 152 | - */ | |
| 153 | - protected function csv_wrap_and_escape( string $cell_content, string $delimiter ): string { | |
| 154 | - // Return early if the cell is empty. No escaping or wrapping is needed then. | |
| 155 | - if ( '' === $cell_content ) { | |
| 156 | - return $cell_content; | |
| 125 | + if ( ! is_array( $options ) ) { | |
| 126 | + $options = array( | |
| 127 | + 'csv_delimiter' => $options, | |
| 128 | + ); | |
| 157 | 129 | } |
| 158 | 130 | |
| 159 | - // Escape potentially dangerous functions that could be used for CSV injection attacks in external spreadsheet software. | |
| 160 | - $active_content_triggers = array( '=', '+', '-', '@' ); | |
| 161 | - if ( in_array( $cell_content[0], $active_content_triggers, true ) ) { | |
| 162 | - $functions_to_escape = array( | |
| 163 | - 'cmd|', | |
| 164 | - 'rundll32', | |
| 165 | - 'DDE(', | |
| 166 | - 'IMPORTXML(', | |
| 167 | - 'IMPORTFEED(', | |
| 168 | - 'IMPORTHTML(', | |
| 169 | - 'IMPORTRANGE(', | |
| 170 | - 'IMPORTDATA(', | |
| 171 | - 'IMAGE(', | |
| 172 | - 'HYPERLINK(', | |
| 173 | - 'WEBSERVICE(', | |
| 174 | - ); | |
| 175 | - foreach ( $functions_to_escape as $function ) { | |
| 176 | - if ( false !== stripos( $cell_content, $function ) ) { | |
| 177 | - $cell_content = "'" . $cell_content; // Prepend a ' to indicate that the cell format is a text string. | |
| 178 | - break; | |
| 179 | - } | |
| 180 | - } | |
| 181 | - } | |
| 131 | + \TablePress::load_file( 'interface-exporter.php', 'classes/exporters' ); | |
| 182 | 132 | |
| 183 | - // Escape CSV delimiter for RegExp (e.g. '|'). | |
| 184 | - $delimiter = preg_quote( $delimiter, '#' ); | |
| 185 | - if ( 1 === preg_match( '#' . $delimiter . '|"|\n|\r#i', $cell_content ) || str_starts_with( $cell_content, ' ' ) || str_ends_with( $cell_content, ' ' ) ) { | |
| 186 | - // Escape single " as double "". | |
| 187 | - $cell_content = str_replace( '"', '""', $cell_content ); | |
| 188 | - // Wrap string in "". | |
| 189 | - $cell_content = '"' . $cell_content . '"'; | |
| 133 | + if ( '' !== $this->exporters[ $export_format ]['file'] ) { | |
| 134 | + \TablePress::load_file( $this->exporters[ $export_format ]['file'], $this->exporters[ $export_format ]['folder'] ); | |
| 190 | 135 | } |
| 191 | 136 | |
| 192 | - return $cell_content; | |
| 193 | - } | |
| 137 | + $exporter_class = $this->exporters[ $export_format ]['class']; | |
| 138 | + $exporter = new $exporter_class(); | |
| 194 | 139 | |
| 195 | - /** | |
| 196 | - * Generate the HTML of a row. | |
| 197 | - * | |
| 198 | - * @since 1.0.0 | |
| 199 | - * | |
| 200 | - * @param string[] $row Cells of the row to be rendered. | |
| 201 | - * @param string $tag HTML tag to use for the cells (td or th). | |
| 202 | - * @return string HTML code for the row. | |
| 203 | - */ | |
| 204 | - protected function html_render_row( array $row, string $tag ): string { | |
| 205 | - $output = "\t\t<tr>\n"; | |
| 206 | - array_walk( $row, array( $this, 'html_wrap_and_escape' ), $tag ); | |
| 207 | - $output .= implode( '', $row ); | |
| 208 | - $output .= "\t\t</tr>\n"; | |
| 209 | - return $output; | |
| 210 | - } | |
| 211 | - | |
| 212 | - /** | |
| 213 | - * Wrap and escape a cell for HTML export. | |
| 214 | - * | |
| 215 | - * @since 1.0.0 | |
| 216 | - * | |
| 217 | - * @param string $cell_content Content of a cell. | |
| 218 | - * @param int $column_idx Column index, or -1 if omitted. Unused, but defined to be able to use function as callback in array_walk(). | |
| 219 | - * @param string $html_tag HTML tag that shall be used for the cell. | |
| 220 | - */ | |
| 221 | - protected function html_wrap_and_escape( string &$cell_content, int $column_idx, string $html_tag ): void { | |
| 222 | - /* | |
| 223 | - * Replace any & with & that is not already an encoded entity (from function htmlentities2 in WP 2.8). | |
| 224 | - * A complete htmlentities2() or htmlspecialchars() would encode <HTML> tags, which we don't want. | |
| 225 | - */ | |
| 226 | - $cell_content = preg_replace( '/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,4};)/', '&', $cell_content ); | |
| 227 | - $cell_content = "\t\t\t<{$html_tag}>{$cell_content}</{$html_tag}>\n"; | |
| 140 | + return $exporter->export( $table, $options ); | |
| 228 | 141 | } |
| 229 | 142 | |
| 230 | 143 | } // class TablePress_Export |
