tablepress-pods.php

@@ -3,9 +3,9 @@
 Plugin Name: TablePress Extension: Pods tables
 Plugin URI: https://code.studioinfinity.org/glen/tablepress-pods
 Description: Custom Extension for TablePress to incorporate Pods information in tables
-Version: 0.2.7
+Version: 0.2.8
 Author: Glen Whitney
-Author URI: http ://studioinfinity.org/
+Author URI: http://studioinfinity.org/
 */
 
 /* Copyright (C) 2018-2019 Glen Whitney
@@ -61,6 +61,7 @@ add_filter( 'tablepress_table_raw_render_data', 'playground_expand_pod', 10, 2 )
 add_filter( 'tablepress_admin_view_actions', 'playground_add_export_pod_action');
 add_filter( 'tablepress_load_file_full_path', 'playground_exportpods_path', 10, 3);
 add_filter( 'tablepress_view_data', 'playground_exportpods_data', 10, 2);
+add_action( 'admin_post_tablepress_exportpods', 'playground_handle_exportpods');
 
 function playground_add_shortcode_parameter_pods( $default_atts ) {
     $default_atts['pod_name'] = '';
@@ -86,7 +87,7 @@ function playground_exportpods_path( $fullpath, $filename, $directory ) {
 }
 
 function playground_exportpods_data( $data, $act ) {
-    if ($action !== 'exportpods') return $data;
+    if ($act !== 'exportpods') return $data;
     // Load all table IDs without priming the post meta cache, as table options/visibility are not needed.
     $data['table_ids'] = TablePress::$model_table->load_all( false );
     $data['tables_count'] = TablePress::$model_table->count_tables();
@@ -184,3 +185,141 @@ function playground_expand_pod( $table, $render_options) {
 	$table['visibility']['columns'] = $cvis;
 	return $table;
 }
+
+function playground_handle_exportpods () {
+		TablePress::check_nonce( 'export' );
+
+		if ( ! current_user_can( 'tablepress_export_tables' ) ) {
+			wp_die( __( 'Sorry, you are not allowed to access this page.', 'default' ), 403 );
+		}
+
+		if ( empty( $_POST['export'] ) || ! is_array( $_POST['export'] ) ) {
+			TablePress::redirect( array( 'action' => 'export', 'message' => 'error_export' ) );
+		} else {
+			$export = wp_unslash( $_POST['export'] );
+		}
+
+		$exporter = TablePress::load_class( 'TablePress_Export', 'class-export.php', 'classes' );
+
+		if ( empty( $export['tables'] ) ) {
+			TablePress::redirect( array( 'action' => 'export', 'message' => 'error_export' ) );
+		}
+		if ( empty( $export['format'] ) || ! isset( $exporter->export_formats[ $export['format'] ] ) ) {
+			TablePress::redirect( array( 'action' => 'export', 'message' => 'error_export' ) );
+		}
+		if ( empty( $export['csv_delimiter'] ) ) {
+			// Set a value, so that the variable exists.
+			$export['csv_delimiter'] = '';
+		}
+		if ( 'csv' === $export['format'] && ! isset( $exporter->csv_delimiters[ $export['csv_delimiter'] ] ) ) {
+			TablePress::redirect( array( 'action' => 'export', 'message' => 'error_export' ) );
+		}
+
+		// Use list of tables from concatenated field if available (as that's hopefully not truncated by Suhosin, which is possible for $export['tables']).
+		$tables = ( ! empty( $export['tables_list'] ) ) ? explode( ',', $export['tables_list'] ) : $export['tables'];
+
+		// Determine if ZIP file support is available.
+		if ( $exporter->zip_support_available
+		&& ( ( isset( $export['zip_file'] ) && 'true' === $export['zip_file'] ) || count( $tables ) > 1 ) ) {
+			// Export to ZIP only if ZIP is desired or if more than one table were selected (mandatory then).
+			$export_to_zip = true;
+		} else {
+			$export_to_zip = false;
+		}
+
+		if ( ! $export_to_zip ) {
+			// This is only possible for one table, so take the first one.
+			if ( ! current_user_can( 'tablepress_export_table', $tables[0] ) ) {
+				wp_die( __( 'Sorry, you are not allowed to access this page.', 'default' ), 403 );
+			}
+			// Load table, with table data, options, and visibility settings.
+			$table = TablePress::$model_table->load( $tables[0], true, true );
+			if ( is_wp_error( $table ) ) {
+				TablePress::redirect( array( 'action' => 'export', 'message' => 'error_load_table', 'export_format' => $export['format'], 'csv_delimiter' => $export['csv_delimiter'] ) );
+			}
+			if ( isset( $table['is_corrupted'] ) && $table['is_corrupted'] ) {
+				TablePress::redirect( array( 'action' => 'export', 'message' => 'error_table_corrupted', 'export_format' => $export['format'], 'csv_delimiter' => $export['csv_delimiter'] ) );
+			}
+			$download_filename = sprintf( '%1$s-%2$s-%3$s.%4$s', $table['id'], $table['name'], date( 'Y-m-d' ), $export['format'] );
+			$download_filename = sanitize_file_name( $download_filename );
+			// Export the table.
+			$export_data = $exporter->export_table( $table, $export['format'], $export['csv_delimiter'] );
+			/**
+			 * Filter the exported table data.
+			 *
+			 * @since 1.6.0
+			 *
+			 * @param string $export_data   The exported table data.
+			 * @param array  $table         Table to be exported.
+			 * @param string $export_format Format for the export ('csv', 'html', 'json').
+			 * @param string $csv_delimiter Delimiter for CSV export.
+			 */
+			$export_data = apply_filters( 'tablepress_export_data', $export_data, $table, $export['format'], $export['csv_delimiter'] );
+			$download_data = $export_data;
+		} else {
+			// Zipping can use a lot of memory and execution time, but not this much hopefully.
+			/** This filter is documented in the WordPress file wp-admin/admin.php */
+			@ini_set( 'memory_limit', apply_filters( 'admin_memory_limit', WP_MAX_MEMORY_LIMIT ) );
+			@set_time_limit( 300 );
+
+			$zip_file = new ZipArchive();
+			$download_filename = sprintf( 'tablepress-export-%1$s-%2$s.zip', date_i18n( 'Y-m-d-H-i-s' ), $export['format'] );
+			$download_filename = sanitize_file_name( $download_filename );
+			$full_filename = wp_tempnam( $download_filename );
+			if ( true !== $zip_file->open( $full_filename, ZIPARCHIVE::OVERWRITE ) ) {
+				@unlink( $full_filename );
+				TablePress::redirect( array( 'action' => 'export', 'message' => 'error_create_zip_file', 'export_format' => $export['format'], 'csv_delimiter' => $export['csv_delimiter'] ) );
+			}
+
+			foreach ( $tables as $table_id ) {
+				// Don't export tables for which the user doesn't have the necessary export rights.
+				if ( ! current_user_can( 'tablepress_export_table', $table_id ) ) {
+					continue;
+				}
+				// Load table, with table data, options, and visibility settings.
+				$table = TablePress::$model_table->load( $table_id, true, true );
+				// Don't export if the table could not be loaded.
+				if ( is_wp_error( $table ) ) {
+					continue;
+				}
+				// Don't export if the table is corrupted.
+				if ( isset( $table['is_corrupted'] ) && $table['is_corrupted'] ) {
+					continue;
+				}
+				$export_data = $exporter->export_table( $table, $export['format'], $export['csv_delimiter'] );
+				/** This filter is documented in controllers/controller-admin.php */
+				$export_data = apply_filters( 'tablepress_export_data', $export_data, $table, $export['format'], $export['csv_delimiter'] );
+				$export_filename = sprintf( '%1$s-%2$s-%3$s.%4$s', $table['id'], $table['name'], date( 'Y-m-d' ), $export['format'] );
+				$export_filename = sanitize_file_name( $export_filename );
+				$zip_file->addFromString( $export_filename, $export_data );
+			}
+
+			// If something went wrong, or no files were added to the ZIP file, bail out.
+			if ( ! ZIPARCHIVE::ER_OK === $zip_file->status || 0 === $zip_file->numFiles ) {
+				$zip_file->close();
+				@unlink( $full_filename );
+				TablePress::redirect( array( 'action' => 'export', 'message' => 'error_create_zip_file', 'export_format' => $export['format'], 'csv_delimiter' => $export['csv_delimiter'] ) );
+			}
+			$zip_file->close();
+
+			// Load contents of the ZIP file, to send it as a download.
+			$download_data = file_get_contents( $full_filename );
+			@unlink( $full_filename );
+		}
+
+		// Send download headers for export file.
+		header( 'Content-Description: File Transfer' );
+		header( 'Content-Type: application/octet-stream' );
+		header( "Content-Disposition: attachment; filename=\"{$download_filename}\"" );
+		header( 'Content-Transfer-Encoding: binary' );
+		header( 'Expires: 0' );
+		header( 'Cache-Control: must-revalidate' );
+		header( 'Pragma: public' );
+		header( 'Content-Length: ' . strlen( $download_data ) );
+		// $filetype = text/csv, text/html, application/json
+		// header( 'Content-Type: ' . $filetype. '; charset=' . get_option( 'blog_charset' ) );
+		@ob_end_clean();
+		flush();
+		echo $download_data;
+		exit;
+}