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Цифровая загрузка Woocommerce с настраиваемым PDF-файлом

Я немного потерял, поэтому я работаю над этим более старым сайтом (см. Пользовательский обработчик загрузки ниже), в котором есть продукт. Этот продукт может иметь несколько значений, но это все тот же продукт. Теперь, если клиент заказывает несколько таких продуктов, они могут загрузить сертификат PDF после оплаты.

Этот файл PDF создается с информацией для элементов продукта. только он не изменяет значение каждой загрузки. Он принимает только значение последнего продукта в заказе.

Я думал о решении с помощью allow_ids, потому что это единственное поле в таблице разрешений, которое уникально, и им нужен только один файл pdf для каждого продукта.

Как я могу сделать так, чтобы сгенерированный PDF-файл имел правильное значение?

заранее спасибо

  /** * Check if we need to download a file and check validity. */ public static function download_product() { $product_id = absint( $_GET['download_file'] ); $_product = wc_get_product( $product_id ); $download_data = self::get_download_data( array( 'product_id' => $product_id, 'order_key' => wc_clean( $_GET['order'] ), 'email' => sanitize_email( str_replace( ' ', '+', $_GET['email'] ) ), 'download_id' => wc_clean( isset( $_GET['key'] ) ? preg_replace( '/\s+/', ' ', $_GET['key'] ) : '' ) ) ); if ( $_product && $download_data ) { self::check_current_user_can_download( $download_data ); do_action( 'woocommerce_download_product', $download_data->user_email, $download_data->order_key, $download_data->product_id, $download_data->user_id, $download_data->download_id, $download_data->order_id ); self::count_download( $download_data ); self::download( $_product->get_file_download_path( $download_data->download_id ), $download_data->product_id, $download_data->order_key ); } else { self::download_error( __( 'Invalid download link.', 'woocommerce' ) ); } } /** * Get a download from the database. * * @param array $args Contains email, order key, product id and download id * @return object * @access private */ private static function get_download_data( $args = array() ) { global $wpdb; $query = "SELECT * FROM " . $wpdb->prefix . "woocommerce_downloadable_product_permissions "; $query .= "WHERE user_email = %s "; $query .= "AND order_key = %s "; $query .= "AND product_id = %s "; if ( isset( $args['download_id'] ) ) { $query .= "AND download_id = %s "; } return $wpdb->get_row( $wpdb->prepare( $query, array( $args['email'], $args['order_key'], $args['product_id'], $args['download_id'] ) ) ); } /** * Perform checks to see if the current user can download the file. * @param object $download_data * @access private */ private static function check_current_user_can_download( $download_data ) { self::check_order_is_valid( $download_data ); self::check_downloads_remaining( $download_data ); self::check_download_expiry( $download_data ); self::check_download_login_required( $download_data ); } /** * Check if an order is valid for downloading from. * @param array $download_data * @access private */ private static function check_order_is_valid( $download_data ) { if ( $download_data->order_id && ( $order = wc_get_order( $download_data->order_id ) ) && ! $order->is_download_permitted() ) { self::download_error( __( 'Invalid order.', 'woocommerce' ), '', 403 ); } } /** * Check if there are downloads remaining. * @param array $download_data * @access private */ private static function check_downloads_remaining( $download_data ) { if ( '0' == $download_data->downloads_remaining ) { self::download_error( __( 'Sorry, you have reached your download limit for this file', 'woocommerce' ), '', 403 ); } } /** * Check if the download has expired. * @param array $download_data * @access private */ private static function check_download_expiry( $download_data ) { if ( $download_data->access_expires > 0 && strtotime( $download_data->access_expires ) < strtotime( 'midnight', current_time( 'timestamp' ) ) ) { self::download_error( __( 'Sorry, this download has expired', 'woocommerce' ), '', 403 ); } } /** * Check if a download requires the user to login first. * @param array $download_data * @access private */ private static function check_download_login_required( $download_data ) { if ( $download_data->user_id && 'yes' === get_option( 'woocommerce_downloads_require_login' ) ) { if ( ! is_user_logged_in() ) { if ( wc_get_page_id( 'myaccount' ) ) { wp_safe_redirect( add_query_arg( 'wc_error', urlencode( __( 'You must be logged in to download files.', 'woocommerce' ) ), wc_get_page_permalink( 'myaccount' ) ) ); exit; } else { self::download_error( __( 'You must be logged in to download files.', 'woocommerce' ) . ' <a href="' . esc_url( wp_login_url( wc_get_page_permalink( 'myaccount' ) ) ) . '" class="wc-forward">' . __( 'Login', 'woocommerce' ) . '</a>', __( 'Log in to Download Files', 'woocommerce' ), 403 ); } } elseif ( ! current_user_can( 'download_file', $download_data ) ) { self::download_error( __( 'This is not your download link.', 'woocommerce' ), '', 403 ); } } } /** * Log the download + increase counts. * @param object $download_data */ public static function count_download( $download_data ) { global $wpdb; $wpdb->update( $wpdb->prefix . 'woocommerce_downloadable_product_permissions', array( 'download_count' => $download_data->download_count + 1, 'downloads_remaining' => $download_data->downloads_remaining > 0 ? $download_data->downloads_remaining - 1 : $download_data->downloads_remaining, ), array( 'permission_id' => absint( $download_data->permission_id ), ), array( '%d', '%s' ), array( '%d' ) ); } /** * Download a file - hook into init function. * @param string $file_path URL to file * @param integer $product_id of the product being downloaded */ public static function download( $file_path, $product_id, $order_key = false ) { if ( ! $file_path ) { self::download_error( __( 'No file defined', 'woocommerce' ) ); } $filename = basename( $file_path ); if ( strstr( $filename, '?' ) ) { $filename = current( explode( '?', $filename ) ); } $filename = apply_filters( 'woocommerce_file_download_filename', $filename, $product_id ); $file_download_method = apply_filters( 'woocommerce_file_download_method', get_option( 'woocommerce_file_download_method', 'force' ), $product_id ); $product = wc_get_product($product_id); $certificate = $product->get_attribute('certificate'); if ($certificate) { $order = new WC_Order(wc_get_order_id_by_order_key($order_key)); $order_price = $order->get_total(); $order_fullName = $order->get_formatted_billing_full_name(); $order_items = $order->get_items(); $order_count = 1; $order_date = $order->order_date; $order_serial = 'CERT/' . date_format(new DateTime($order_date), 'Ymd') . '/' . strtoupper(str_replace('wc_order_', '', $order_key)); $order_item = false; foreach($order_items as $item) { if ($item['product_id'] == $product_id) { $order_count = $item['qty']; $order_item = $item['product_id']; $order_price = $item['line_total']; } } // $file_path = admin_url('admin-ajax.php') . '?action=download_certificate&file='.$file_path.'&qty='.$order_count.'&name='.$order_fullName.'&price='.$order_price.'&serial='.$order_serial; // wc_price($price); // Format price into current currency for display // var_dump($order_count); // var_dump($order_fullName); // var_dump($order_price); // var_dump($order_serial); // var_dump($file_path); $parsed_file_path = self::parse_file_path( $file_path ); // self::download_headers( $parsed_file_path['file_path'], $filename ); require_once(_DIR_.'/lib/tcpdf/tcpdf.php'); require_once(_DIR_.'/lib/fpdi/fpdi.php'); /** * Create a new PDF * * landscape, millimeter, A4 * * https://manuals.setasign.com/fpdi-manual/the-fpdf-tpl-class/#index-2 * * @var FPDI */ $pdf = new FPDI('L', 'mm', 'A5'); //FPDI extends TCPDF $pdf->SetAuthor('Trees for All'); $pdf->SetTitle(__('Bewijs van donatie')); $pdf->SetSubject(__('Dit is een bewijs van donatie ter waarde van € '. number_format( $order_price, 2, ',', '.' ) ) ); $pdf->SetKeywords(__('Trees for All, Certificaat, Donatie')); $pdf->AddPage(); $pages = $pdf->setSourceFile($parsed_file_path['file_path']); $page = $pdf->ImportPage(1); $size = $pdf->getTemplateSize($page); $pdf->useTemplate($page, 0, 0); // Template id, x, y, w, h () $pdf->setPrintHeader(false); $pdf->setPrintFooter(false); $pdf->SetMargins(0, 0, 0); $pdf->SetAutoPageBreak(false, 0); /** * Write certificate data to pdf */ $pdf->SetFont('helvetica', '', 9); $pdf->setColor('text', 0, 157, 224); $pdf->SetXY(173.5,54); $pdf->Write(1, number_format( $order_price, 2, ',', '.' )); $pdf->SetFont('helvetica', '', 60); $pdf->setColor('text', 0, 0, 0); $pdf->SetXY(142.5,95); // $pdf->Write(1, ''.$order_count, ''); // $pdf->setColor('fill', 255, 0, 0); $pdf->Cell(60, 0, $order_count, 0, 0, 'C', false); $pdf->SetFont('helvetica', '', 10); $pdf->SetXY(1,143.3); $pdf->Write(1, $order_serial); // Output 'D' for downloading // Output 'I' for outputting to the browser without saving the file $download = preg_match('/\.dev|localhost/i', $_SERVER['SERVER_NAME']) ? 'I':'D'; $pdf->Output('bewijs-van-donatie.pdf', $download); die(); } // Add action to prevent issues in IE add_action( 'nocache_headers', array( __CLASS__, 'ie_nocache_headers_fix' ) ); // Trigger download via one of the methods do_action( 'woocommerce_download_file_' . $file_download_method, $file_path, $filename ); } /** * Redirect to a file to start the download. * @param string $file_path * @param string $filename */ public static function download_file_redirect( $file_path, $filename = '' ) { header( 'Location: ' . $file_path ); exit; } /** * Parse file path and see if its remote or local. * @param string $file_path * @return array */ public static function parse_file_path( $file_path ) { $wp_uploads = wp_upload_dir(); $wp_uploads_dir = $wp_uploads['basedir']; $wp_uploads_url = $wp_uploads['baseurl']; // Replace uploads dir, site url etc with absolute counterparts if we can $replacements = array( $wp_uploads_url => $wp_uploads_dir, network_site_url( '/', 'https' ) => ABSPATH, network_site_url( '/', 'http' ) => ABSPATH, site_url( '/', 'https' ) => ABSPATH, site_url( '/', 'http' ) => ABSPATH ); $file_path = str_replace( array_keys( $replacements ), array_values( $replacements ), $file_path ); $parsed_file_path = parse_url( $file_path ); $remote_file = true; // See if path needs an abspath prepended to work if ( file_exists( ABSPATH . $file_path ) ) { $remote_file = false; $file_path = ABSPATH . $file_path; // Check if we have an absolute path } elseif ( ( ! isset( $parsed_file_path['scheme'] ) || ! in_array( $parsed_file_path['scheme'], array( 'http', 'https', 'ftp' ) ) ) && isset( $parsed_file_path['path'] ) && file_exists( $parsed_file_path['path'] ) ) { $remote_file = false; $file_path = $parsed_file_path['path']; } return array( 'remote_file' => $remote_file, 'file_path' => $file_path ); } /** * Download a file using X-Sendfile, X-Lighttpd-Sendfile, or X-Accel-Redirect if available. * @param string $file_path * @param string $filename */ public static function download_file_xsendfile( $file_path, $filename ) { $parsed_file_path = self::parse_file_path( $file_path ); if ( function_exists( 'apache_get_modules' ) && in_array( 'mod_xsendfile', apache_get_modules() ) ) { self::download_headers( $parsed_file_path['file_path'], $filename ); header( "X-Sendfile: " . $parsed_file_path['file_path'] ); exit; } elseif ( stristr( getenv( 'SERVER_SOFTWARE' ), 'lighttpd' ) ) { self::download_headers( $parsed_file_path['file_path'], $filename ); header( "X-Lighttpd-Sendfile: " . $parsed_file_path['file_path'] ); exit; } elseif ( stristr( getenv( 'SERVER_SOFTWARE' ), 'nginx' ) || stristr( getenv( 'SERVER_SOFTWARE' ), 'cherokee' ) ) { self::download_headers( $parsed_file_path['file_path'], $filename ); $xsendfile_path = trim( preg_replace( '`^' . str_replace( '\\', '/', getcwd() ) . '`', '', $parsed_file_path['file_path'] ), '/' ); header( "X-Accel-Redirect: /$xsendfile_path" ); exit; } // Fallback self::download_file_force( $file_path, $filename ); } /** * Force download - this is the default method. * @param string $file_path * @param string $filename */ public static function download_file_force( $file_path, $filename ) { $parsed_file_path = self::parse_file_path( $file_path ); self::download_headers( $parsed_file_path['file_path'], $filename ); if ( ! self::readfile_chunked( $parsed_file_path['file_path'] ) ) { if ( $parsed_file_path['remote_file'] ) { self::download_file_redirect( $file_path ); } else { self::download_error( __( 'File not found', 'woocommerce' ) ); } } exit; } /** * Get content type of a download. * @param string $file_path * @return string * @access private */ private static function get_download_content_type( $file_path ) { $file_extension = strtolower( substr( strrchr( $file_path, "." ), 1 ) ); $ctype = "application/force-download"; foreach ( get_allowed_mime_types() as $mime => $type ) { $mimes = explode( '|', $mime ); if ( in_array( $file_extension, $mimes ) ) { $ctype = $type; break; } } return $ctype; } /** * Set headers for the download. * @param string $file_path * @param string $filename * @access private */ private static function download_headers( $file_path, $filename ) { self::check_server_config(); self::clean_buffers(); nocache_headers(); header( "X-Robots-Tag: noindex, nofollow", true ); header( "Content-Type: " . self::get_download_content_type( $file_path ) ); header( "Content-Description: File Transfer" ); header( "Content-Disposition: attachment; filename=\"" . $filename . "\";" ); header( "Content-Transfer-Encoding: binary" ); if ( $size = @filesize( $file_path ) ) { header( "Content-Length: " . $size ); } } /** * Check and set certain server config variables to ensure downloads work as intended. */ private static function check_server_config() { if ( function_exists( 'set_time_limit' ) && false === strpos( ini_get( 'disable_functions' ), 'set_time_limit' ) && ! ini_get( 'safe_mode' ) ) { @set_time_limit( 0 ); } if ( function_exists( 'get_magic_quotes_runtime' ) && get_magic_quotes_runtime() && version_compare( phpversion(), '5.4', '<' ) ) { set_magic_quotes_runtime( 0 ); } if ( function_exists( 'apache_setenv' ) ) { @apache_setenv( 'no-gzip', 1 ); } @ini_set( 'zlib.output_compression', 'Off' ); @session_write_close(); } /** * Clean all output buffers. * * Can prevent errors, for example: transfer closed with 3 bytes remaining to read. * * @access private */ private static function clean_buffers() { if ( ob_get_level() ) { $levels = ob_get_level(); for ( $i = 0; $i < $levels; $i++ ) { @ob_end_clean(); } } else { @ob_end_clean(); } } /** * readfile_chunked. * * Reads file in chunks so big downloads are possible without changing PHP.INI - http://codeigniter.com/wiki/Download_helper_for_large_files/. * * @param string $file * @return bool Success or fail */ public static function readfile_chunked( $file ) { $chunksize = 1024 * 1024; $handle = @fopen( $file, 'r' ); if ( false === $handle ) { return false; } while ( ! @feof( $handle ) ) { echo @fread( $handle, $chunksize ); if ( ob_get_length() ) { ob_flush(); flush(); } } return @fclose( $handle ); } /** * Filter headers for IE to fix issues over SSL. * * IE bug prevents download via SSL when Cache Control and Pragma no-cache headers set. * * @param array $headers * @return array */ public static function ie_nocache_headers_fix( $headers ) { if ( is_ssl() && ! empty( $GLOBALS['is_IE'] ) ) { $headers['Cache-Control'] = 'private'; unset( $headers['Pragma'] ); } return $headers; } /** * [generate_certificate description] * @return [type] [description] */ public static function generate_certificate() { // ?action=download-certificate&file='.$file_path.'&qty='.$order_count.'&name='.$order_fullName.'&price='.$order_price.'&serial='.$order_serial if (isset($_GET['file'])) { $file_path = $_GET['file']; } else { $file_path = false; } if (isset($_GET['qty'])) { $qty = $_GET['qty']; } else { $qty = false; } if (isset($_GET['name'])) { $name = $_GET['name']; } else { $name = false; } if (isset($_GET['price'])) { $price = $_GET['price']; } else { $price = false; } if (isset($_GET['serial'])) { $serial = $_GET['serial']; } else { $serial = false; } // Hier moet nog iets van goedkeuring komen // Misschien iets van abort download weet niet of er zoiets is require_once('../lib/tcpdf/tcpdf.php'); $pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false); $pdf->setPrintHeader(false); $pdf->setPrintFooter(false); $pdf->Output('bewijs-van-donatie.pdf', 'D'); wp_die(); } /** * Die with an error message if the download fails. * @param string $message * @param string $title * @param integer $status * @access private */ private static function download_error( $message, $title = '', $status = 404 ) { if ( ! strstr( $message, '<a ' ) ) { $message .= ' <a href="' . esc_url( home_url() ) . '" class="wc-forward">' . __( 'Go to homepage', 'woocommerce' ) . '</a>'; } wp_die( $message, $title, array( 'response' => $status ) ); } -  /** * Check if we need to download a file and check validity. */ public static function download_product() { $product_id = absint( $_GET['download_file'] ); $_product = wc_get_product( $product_id ); $download_data = self::get_download_data( array( 'product_id' => $product_id, 'order_key' => wc_clean( $_GET['order'] ), 'email' => sanitize_email( str_replace( ' ', '+', $_GET['email'] ) ), 'download_id' => wc_clean( isset( $_GET['key'] ) ? preg_replace( '/\s+/', ' ', $_GET['key'] ) : '' ) ) ); if ( $_product && $download_data ) { self::check_current_user_can_download( $download_data ); do_action( 'woocommerce_download_product', $download_data->user_email, $download_data->order_key, $download_data->product_id, $download_data->user_id, $download_data->download_id, $download_data->order_id ); self::count_download( $download_data ); self::download( $_product->get_file_download_path( $download_data->download_id ), $download_data->product_id, $download_data->order_key ); } else { self::download_error( __( 'Invalid download link.', 'woocommerce' ) ); } } /** * Get a download from the database. * * @param array $args Contains email, order key, product id and download id * @return object * @access private */ private static function get_download_data( $args = array() ) { global $wpdb; $query = "SELECT * FROM " . $wpdb->prefix . "woocommerce_downloadable_product_permissions "; $query .= "WHERE user_email = %s "; $query .= "AND order_key = %s "; $query .= "AND product_id = %s "; if ( isset( $args['download_id'] ) ) { $query .= "AND download_id = %s "; } return $wpdb->get_row( $wpdb->prepare( $query, array( $args['email'], $args['order_key'], $args['product_id'], $args['download_id'] ) ) ); } /** * Perform checks to see if the current user can download the file. * @param object $download_data * @access private */ private static function check_current_user_can_download( $download_data ) { self::check_order_is_valid( $download_data ); self::check_downloads_remaining( $download_data ); self::check_download_expiry( $download_data ); self::check_download_login_required( $download_data ); } /** * Check if an order is valid for downloading from. * @param array $download_data * @access private */ private static function check_order_is_valid( $download_data ) { if ( $download_data->order_id && ( $order = wc_get_order( $download_data->order_id ) ) && ! $order->is_download_permitted() ) { self::download_error( __( 'Invalid order.', 'woocommerce' ), '', 403 ); } } /** * Check if there are downloads remaining. * @param array $download_data * @access private */ private static function check_downloads_remaining( $download_data ) { if ( '0' == $download_data->downloads_remaining ) { self::download_error( __( 'Sorry, you have reached your download limit for this file', 'woocommerce' ), '', 403 ); } } /** * Check if the download has expired. * @param array $download_data * @access private */ private static function check_download_expiry( $download_data ) { if ( $download_data->access_expires > 0 && strtotime( $download_data->access_expires ) < strtotime( 'midnight', current_time( 'timestamp' ) ) ) { self::download_error( __( 'Sorry, this download has expired', 'woocommerce' ), '', 403 ); } } /** * Check if a download requires the user to login first. * @param array $download_data * @access private */ private static function check_download_login_required( $download_data ) { if ( $download_data->user_id && 'yes' === get_option( 'woocommerce_downloads_require_login' ) ) { if ( ! is_user_logged_in() ) { if ( wc_get_page_id( 'myaccount' ) ) { wp_safe_redirect( add_query_arg( 'wc_error', urlencode( __( 'You must be logged in to download files.', 'woocommerce' ) ), wc_get_page_permalink( 'myaccount' ) ) ); exit; } else { self::download_error( __( 'You must be logged in to download files.', 'woocommerce' ) . ' <a href="' . esc_url( wp_login_url( wc_get_page_permalink( 'myaccount' ) ) ) . '" class="wc-forward">' . __( 'Login', 'woocommerce' ) . '</a>', __( 'Log in to Download Files', 'woocommerce' ), 403 ); } } elseif ( ! current_user_can( 'download_file', $download_data ) ) { self::download_error( __( 'This is not your download link.', 'woocommerce' ), '', 403 ); } } } /** * Log the download + increase counts. * @param object $download_data */ public static function count_download( $download_data ) { global $wpdb; $wpdb->update( $wpdb->prefix . 'woocommerce_downloadable_product_permissions', array( 'download_count' => $download_data->download_count + 1, 'downloads_remaining' => $download_data->downloads_remaining > 0 ? $download_data->downloads_remaining - 1 : $download_data->downloads_remaining, ), array( 'permission_id' => absint( $download_data->permission_id ), ), array( '%d', '%s' ), array( '%d' ) ); } /** * Download a file - hook into init function. * @param string $file_path URL to file * @param integer $product_id of the product being downloaded */ public static function download( $file_path, $product_id, $order_key = false ) { if ( ! $file_path ) { self::download_error( __( 'No file defined', 'woocommerce' ) ); } $filename = basename( $file_path ); if ( strstr( $filename, '?' ) ) { $filename = current( explode( '?', $filename ) ); } $filename = apply_filters( 'woocommerce_file_download_filename', $filename, $product_id ); $file_download_method = apply_filters( 'woocommerce_file_download_method', get_option( 'woocommerce_file_download_method', 'force' ), $product_id ); $product = wc_get_product($product_id); $certificate = $product->get_attribute('certificate'); if ($certificate) { $order = new WC_Order(wc_get_order_id_by_order_key($order_key)); $order_price = $order->get_total(); $order_fullName = $order->get_formatted_billing_full_name(); $order_items = $order->get_items(); $order_count = 1; $order_date = $order->order_date; $order_serial = 'CERT/' . date_format(new DateTime($order_date), 'Ymd') . '/' . strtoupper(str_replace('wc_order_', '', $order_key)); $order_item = false; foreach($order_items as $item) { if ($item['product_id'] == $product_id) { $order_count = $item['qty']; $order_item = $item['product_id']; $order_price = $item['line_total']; } } // $file_path = admin_url('admin-ajax.php') . '?action=download_certificate&file='.$file_path.'&qty='.$order_count.'&name='.$order_fullName.'&price='.$order_price.'&serial='.$order_serial; // wc_price($price); // Format price into current currency for display // var_dump($order_count); // var_dump($order_fullName); // var_dump($order_price); // var_dump($order_serial); // var_dump($file_path); $parsed_file_path = self::parse_file_path( $file_path ); // self::download_headers( $parsed_file_path['file_path'], $filename ); require_once(_DIR_.'/lib/tcpdf/tcpdf.php'); require_once(_DIR_.'/lib/fpdi/fpdi.php'); /** * Create a new PDF * * landscape, millimeter, A4 * * https://manuals.setasign.com/fpdi-manual/the-fpdf-tpl-class/#index-2 * * @var FPDI */ $pdf = new FPDI('L', 'mm', 'A5'); //FPDI extends TCPDF $pdf->SetAuthor('Trees for All'); $pdf->SetTitle(__('Bewijs van donatie')); $pdf->SetSubject(__('Dit is een bewijs van donatie ter waarde van € '. number_format( $order_price, 2, ',', '.' ) ) ); $pdf->SetKeywords(__('Trees for All, Certificaat, Donatie')); $pdf->AddPage(); $pages = $pdf->setSourceFile($parsed_file_path['file_path']); $page = $pdf->ImportPage(1); $size = $pdf->getTemplateSize($page); $pdf->useTemplate($page, 0, 0); // Template id, x, y, w, h () $pdf->setPrintHeader(false); $pdf->setPrintFooter(false); $pdf->SetMargins(0, 0, 0); $pdf->SetAutoPageBreak(false, 0); /** * Write certificate data to pdf */ $pdf->SetFont('helvetica', '', 9); $pdf->setColor('text', 0, 157, 224); $pdf->SetXY(173.5,54); $pdf->Write(1, number_format( $order_price, 2, ',', '.' )); $pdf->SetFont('helvetica', '', 60); $pdf->setColor('text', 0, 0, 0); $pdf->SetXY(142.5,95); // $pdf->Write(1, ''.$order_count, ''); // $pdf->setColor('fill', 255, 0, 0); $pdf->Cell(60, 0, $order_count, 0, 0, 'C', false); $pdf->SetFont('helvetica', '', 10); $pdf->SetXY(1,143.3); $pdf->Write(1, $order_serial); // Output 'D' for downloading // Output 'I' for outputting to the browser without saving the file $download = preg_match('/\.dev|localhost/i', $_SERVER['SERVER_NAME']) ? 'I':'D'; $pdf->Output('bewijs-van-donatie.pdf', $download); die(); } // Add action to prevent issues in IE add_action( 'nocache_headers', array( __CLASS__, 'ie_nocache_headers_fix' ) ); // Trigger download via one of the methods do_action( 'woocommerce_download_file_' . $file_download_method, $file_path, $filename ); } /** * Redirect to a file to start the download. * @param string $file_path * @param string $filename */ public static function download_file_redirect( $file_path, $filename = '' ) { header( 'Location: ' . $file_path ); exit; } /** * Parse file path and see if its remote or local. * @param string $file_path * @return array */ public static function parse_file_path( $file_path ) { $wp_uploads = wp_upload_dir(); $wp_uploads_dir = $wp_uploads['basedir']; $wp_uploads_url = $wp_uploads['baseurl']; // Replace uploads dir, site url etc with absolute counterparts if we can $replacements = array( $wp_uploads_url => $wp_uploads_dir, network_site_url( '/', 'https' ) => ABSPATH, network_site_url( '/', 'http' ) => ABSPATH, site_url( '/', 'https' ) => ABSPATH, site_url( '/', 'http' ) => ABSPATH ); $file_path = str_replace( array_keys( $replacements ), array_values( $replacements ), $file_path ); $parsed_file_path = parse_url( $file_path ); $remote_file = true; // See if path needs an abspath prepended to work if ( file_exists( ABSPATH . $file_path ) ) { $remote_file = false; $file_path = ABSPATH . $file_path; // Check if we have an absolute path } elseif ( ( ! isset( $parsed_file_path['scheme'] ) || ! in_array( $parsed_file_path['scheme'], array( 'http', 'https', 'ftp' ) ) ) && isset( $parsed_file_path['path'] ) && file_exists( $parsed_file_path['path'] ) ) { $remote_file = false; $file_path = $parsed_file_path['path']; } return array( 'remote_file' => $remote_file, 'file_path' => $file_path ); } /** * Download a file using X-Sendfile, X-Lighttpd-Sendfile, or X-Accel-Redirect if available. * @param string $file_path * @param string $filename */ public static function download_file_xsendfile( $file_path, $filename ) { $parsed_file_path = self::parse_file_path( $file_path ); if ( function_exists( 'apache_get_modules' ) && in_array( 'mod_xsendfile', apache_get_modules() ) ) { self::download_headers( $parsed_file_path['file_path'], $filename ); header( "X-Sendfile: " . $parsed_file_path['file_path'] ); exit; } elseif ( stristr( getenv( 'SERVER_SOFTWARE' ), 'lighttpd' ) ) { self::download_headers( $parsed_file_path['file_path'], $filename ); header( "X-Lighttpd-Sendfile: " . $parsed_file_path['file_path'] ); exit; } elseif ( stristr( getenv( 'SERVER_SOFTWARE' ), 'nginx' ) || stristr( getenv( 'SERVER_SOFTWARE' ), 'cherokee' ) ) { self::download_headers( $parsed_file_path['file_path'], $filename ); $xsendfile_path = trim( preg_replace( '`^' . str_replace( '\\', '/', getcwd() ) . '`', '', $parsed_file_path['file_path'] ), '/' ); header( "X-Accel-Redirect: /$xsendfile_path" ); exit; } // Fallback self::download_file_force( $file_path, $filename ); } /** * Force download - this is the default method. * @param string $file_path * @param string $filename */ public static function download_file_force( $file_path, $filename ) { $parsed_file_path = self::parse_file_path( $file_path ); self::download_headers( $parsed_file_path['file_path'], $filename ); if ( ! self::readfile_chunked( $parsed_file_path['file_path'] ) ) { if ( $parsed_file_path['remote_file'] ) { self::download_file_redirect( $file_path ); } else { self::download_error( __( 'File not found', 'woocommerce' ) ); } } exit; } /** * Get content type of a download. * @param string $file_path * @return string * @access private */ private static function get_download_content_type( $file_path ) { $file_extension = strtolower( substr( strrchr( $file_path, "." ), 1 ) ); $ctype = "application/force-download"; foreach ( get_allowed_mime_types() as $mime => $type ) { $mimes = explode( '|', $mime ); if ( in_array( $file_extension, $mimes ) ) { $ctype = $type; break; } } return $ctype; } /** * Set headers for the download. * @param string $file_path * @param string $filename * @access private */ private static function download_headers( $file_path, $filename ) { self::check_server_config(); self::clean_buffers(); nocache_headers(); header( "X-Robots-Tag: noindex, nofollow", true ); header( "Content-Type: " . self::get_download_content_type( $file_path ) ); header( "Content-Description: File Transfer" ); header( "Content-Disposition: attachment; filename=\"" . $filename . "\";" ); header( "Content-Transfer-Encoding: binary" ); if ( $size = @filesize( $file_path ) ) { header( "Content-Length: " . $size ); } } /** * Check and set certain server config variables to ensure downloads work as intended. */ private static function check_server_config() { if ( function_exists( 'set_time_limit' ) && false === strpos( ini_get( 'disable_functions' ), 'set_time_limit' ) && ! ini_get( 'safe_mode' ) ) { @set_time_limit( 0 ); } if ( function_exists( 'get_magic_quotes_runtime' ) && get_magic_quotes_runtime() && version_compare( phpversion(), '5.4', '<' ) ) { set_magic_quotes_runtime( 0 ); } if ( function_exists( 'apache_setenv' ) ) { @apache_setenv( 'no-gzip', 1 ); } @ini_set( 'zlib.output_compression', 'Off' ); @session_write_close(); } /** * Clean all output buffers. * * Can prevent errors, for example: transfer closed with 3 bytes remaining to read. * * @access private */ private static function clean_buffers() { if ( ob_get_level() ) { $levels = ob_get_level(); for ( $i = 0; $i < $levels; $i++ ) { @ob_end_clean(); } } else { @ob_end_clean(); } } /** * readfile_chunked. * * Reads file in chunks so big downloads are possible without changing PHP.INI - http://codeigniter.com/wiki/Download_helper_for_large_files/. * * @param string $file * @return bool Success or fail */ public static function readfile_chunked( $file ) { $chunksize = 1024 * 1024; $handle = @fopen( $file, 'r' ); if ( false === $handle ) { return false; } while ( ! @feof( $handle ) ) { echo @fread( $handle, $chunksize ); if ( ob_get_length() ) { ob_flush(); flush(); } } return @fclose( $handle ); } /** * Filter headers for IE to fix issues over SSL. * * IE bug prevents download via SSL when Cache Control and Pragma no-cache headers set. * * @param array $headers * @return array */ public static function ie_nocache_headers_fix( $headers ) { if ( is_ssl() && ! empty( $GLOBALS['is_IE'] ) ) { $headers['Cache-Control'] = 'private'; unset( $headers['Pragma'] ); } return $headers; } /** * [generate_certificate description] * @return [type] [description] */ public static function generate_certificate() { // ?action=download-certificate&file='.$file_path.'&qty='.$order_count.'&name='.$order_fullName.'&price='.$order_price.'&serial='.$order_serial if (isset($_GET['file'])) { $file_path = $_GET['file']; } else { $file_path = false; } if (isset($_GET['qty'])) { $qty = $_GET['qty']; } else { $qty = false; } if (isset($_GET['name'])) { $name = $_GET['name']; } else { $name = false; } if (isset($_GET['price'])) { $price = $_GET['price']; } else { $price = false; } if (isset($_GET['serial'])) { $serial = $_GET['serial']; } else { $serial = false; } // Hier moet nog iets van goedkeuring komen // Misschien iets van abort download weet niet of er zoiets is require_once('../lib/tcpdf/tcpdf.php'); $pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false); $pdf->setPrintHeader(false); $pdf->setPrintFooter(false); $pdf->Output('bewijs-van-donatie.pdf', 'D'); wp_die(); } /** * Die with an error message if the download fails. * @param string $message * @param string $title * @param integer $status * @access private */ private static function download_error( $message, $title = '', $status = 404 ) { if ( ! strstr( $message, '<a ' ) ) { $message .= ' <a href="' . esc_url( home_url() ) . '" class="wc-forward">' . __( 'Go to homepage', 'woocommerce' ) . '</a>'; } wp_die( $message, $title, array( 'response' => $status ) ); }