' . __( 'Go to homepage', 'woocommerce' ) . '' ); $query = " SELECT order_id,downloads_remaining,user_id,download_count,access_expires,download_id FROM " . $wpdb->prefix . "woocommerce_downloadable_product_permissions WHERE user_email = %s AND order_key = %s AND product_id = %s"; $args = array( $email, $order_key, $product_id ); if ( $download_id ) { // backwards compatibility for existing download URLs $query .= " AND download_id = %s"; $args[] = $download_id; } $download_result = $wpdb->get_row( $wpdb->prepare( $query, $args ) ); if ( ! $download_result ) wp_die( __( 'Invalid download.', 'woocommerce' ) . ' ' . __( 'Go to homepage', 'woocommerce' ) . '' ); $download_id = $download_result->download_id; $order_id = $download_result->order_id; $downloads_remaining = $download_result->downloads_remaining; $download_count = $download_result->download_count; $user_id = $download_result->user_id; $access_expires = $download_result->access_expires; if ( $user_id && get_option( 'woocommerce_downloads_require_login' ) == 'yes' ) { if ( ! is_user_logged_in() ) wp_die( __( 'You must be logged in to download files.', 'woocommerce' ) . ' ' . __( 'Login', 'woocommerce' ) . '', __( 'Log in to Download Files', 'woocommerce' ) ); elseif ( !current_user_can( 'download_file', $download_result ) ) wp_die( __( 'This is not your download link.', 'woocommerce' ) ); } if ( ! get_post( $product_id ) ) wp_die( __( 'Product no longer exists.', 'woocommerce' ) . ' ' . __( 'Go to homepage', 'woocommerce' ) . '' ); if ( $order_id ) { $order = new WC_Order( $order_id ); if ( ! $order->is_download_permitted() || $order->post_status != 'publish' ) wp_die( __( 'Invalid order.', 'woocommerce' ) . ' ' . __( 'Go to homepage', 'woocommerce' ) . '' ); } if ( $downloads_remaining == '0' ) wp_die( __( 'Sorry, you have reached your download limit for this file', 'woocommerce' ) . ' ' . __( 'Go to homepage', 'woocommerce' ) . '' ); if ( $access_expires > 0 && strtotime( $access_expires) < current_time( 'timestamp' ) ) wp_die( __( 'Sorry, this download has expired', 'woocommerce' ) . ' ' . __( 'Go to homepage', 'woocommerce' ) . '' ); if ( $downloads_remaining > 0 ) { $wpdb->update( $wpdb->prefix . "woocommerce_downloadable_product_permissions", array( 'downloads_remaining' => $downloads_remaining - 1, ), array( 'user_email' => $email, 'order_key' => $order_key, 'product_id' => $product_id, 'download_id' => $download_id ), array( '%d' ), array( '%s', '%s', '%d', '%s' ) ); } // Count the download $wpdb->update( $wpdb->prefix . "woocommerce_downloadable_product_permissions", array( 'download_count' => $download_count + 1, ), array( 'user_email' => $email, 'order_key' => $order_key, 'product_id' => $product_id, 'download_id' => $download_id ), array( '%d' ), array( '%s', '%s', '%d', '%s' ) ); // Trigger action do_action( 'woocommerce_download_product', $email, $order_key, $product_id, $user_id, $download_id, $order_id ); // Get the download URL and try to replace the url with a path $file_path = $_product->get_file_download_path( $download_id ); // Download it! $this->download( $file_path, $product_id ); } } /** * Download a file - hook into init function. */ public function download( $file_path, $product_id ) { global $wpdb, $is_IE; $file_download_method = apply_filters( 'woocommerce_file_download_method', get_option( 'woocommerce_file_download_method' ), $product_id ); if ( ! $file_path ) wp_die( __( 'No file defined', 'woocommerce' ) . ' ' . __( 'Go to homepage', 'woocommerce' ) . '' ); // Redirect to the file... if ( $file_download_method == "redirect" ) { header( 'Location: ' . $file_path ); exit; } // ...or serve it if ( ! is_multisite() ) { /* * Download file may be either http or https. * site_url() depends on whether the page containing the download (ie; My Account) is served via SSL because WC * modifies site_url() via a filter to force_ssl. * So blindly doing a str_replace is incorrect because it will fail when schemes are mismatched. This code * handles the various permutations. */ $scheme = parse_url( $file_path, PHP_URL_SCHEME ); if ( $scheme ) { $site_url = set_url_scheme( site_url( '' ), $scheme ); } else { $site_url = is_ssl() ? str_replace( 'https:', 'http:', site_url() ) : site_url(); } $file_path = str_replace( trailingslashit( $site_url ), ABSPATH, $file_path ); } else { $network_url = is_ssl() ? str_replace( 'https:', 'http:', network_admin_url() ) : network_admin_url(); $upload_dir = wp_upload_dir(); // Try to replace network url $file_path = str_replace( trailingslashit( $network_url ), ABSPATH, $file_path ); // Now try to replace upload URL $file_path = str_replace( $upload_dir['baseurl'], $upload_dir['basedir'], $file_path ); } // See if its local or remote if ( strstr( $file_path, 'http:' ) || strstr( $file_path, 'https:' ) || strstr( $file_path, 'ftp:' ) ) { $remote_file = true; } else { $remote_file = false; // Remove Query String if ( strstr( $file_path, '?' ) ) $file_path = current( explode( '?', $file_path ) ); $file_path = realpath( $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; } } // Start setting headers if ( ! ini_get('safe_mode') ) @set_time_limit(0); if ( function_exists( 'get_magic_quotes_runtime' ) && get_magic_quotes_runtime() ) @set_magic_quotes_runtime(0); if( function_exists( 'apache_setenv' ) ) @apache_setenv( 'no-gzip', 1 ); @session_write_close(); @ini_set( 'zlib.output_compression', 'Off' ); /** * Prevents errors, for example: transfer closed with 3 bytes remaining to read */ @ob_end_clean(); // Clear the output buffer if ( ob_get_level() ) { $levels = ob_get_level(); for ( $i = 0; $i < $levels; $i++ ) { @ob_end_clean(); // Zip corruption fix } } if ( $is_IE && is_ssl() ) { // IE bug prevents download via SSL when Cache Control and Pragma no-cache headers set. header( 'Expires: Wed, 11 Jan 1984 05:00:00 GMT' ); header( 'Cache-Control: private' ); } else { nocache_headers(); } $file_name = basename( $file_path ); if ( strstr( $file_name, '?' ) ) $file_name = current( explode( '?', $file_name ) ); header( "X-Robots-Tag: noindex, nofollow", true ); header( "Content-Type: " . $ctype ); header( "Content-Description: File Transfer" ); header( "Content-Disposition: attachment; filename=\"" . $file_name . "\";" ); header( "Content-Transfer-Encoding: binary" ); if ( $size = @filesize( $file_path ) ) header( "Content-Length: " . $size ); if ( $file_download_method == 'xsendfile' ) { // Path fix - kudos to Jason Judge if ( getcwd() ) $file_path = trim( preg_replace( '`^' . str_replace( '\\', '/', getcwd() ) . '`' , '', $file_path ), '/' ); header( "Content-Disposition: attachment; filename=\"" . $file_name . "\";" ); if ( function_exists( 'apache_get_modules' ) && in_array( 'mod_xsendfile', apache_get_modules() ) ) { header("X-Sendfile: $file_path"); exit; } elseif ( stristr( getenv( 'SERVER_SOFTWARE' ), 'lighttpd' ) ) { header( "X-Lighttpd-Sendfile: $file_path" ); exit; } elseif ( stristr( getenv( 'SERVER_SOFTWARE' ), 'nginx' ) || stristr( getenv( 'SERVER_SOFTWARE' ), 'cherokee' ) ) { header( "X-Accel-Redirect: /$file_path" ); exit; } } if ( $remote_file ) $this->readfile_chunked( $file_path ) or header( 'Location: ' . $file_path ); else $this->readfile_chunked( $file_path ) or wp_die( __( 'File not found', 'woocommerce' ) . ' ' . __( 'Go to homepage', 'woocommerce' ) . '' ); exit; } /** * 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 * @param bool $retbytes return bytes of file * @return bool|int * @todo Meaning of the return value? Last return is status of fclose? */ public static function readfile_chunked( $file, $retbytes = true ) { $chunksize = 1 * ( 1024 * 1024 ); $buffer = ''; $cnt = 0; $handle = @fopen( $file, 'r' ); if ( $handle === FALSE ) return FALSE; while ( ! feof( $handle ) ) { $buffer = fread( $handle, $chunksize ); echo $buffer; ob_flush(); flush(); if ( $retbytes ) $cnt += strlen( $buffer ); } $status = fclose( $handle ); if ( $retbytes && $status ) return $cnt; return $status; } } new WC_Download_Handler();