allolex

For clarity’s sake, in case a less experienced person wants to make the change himself:

/**
 * Sends headers to redirect to dc_download.php when download code was entered successfully.
 */
function dc_headers() {
        global $wpdb;

        if (isset( $_GET['lease'] )) {

                // Set timeout
                set_time_limit( 1200 );

                // Get details for code and release
                $release = $wpdb->get_row( "SELECT r.*, c.ID as code, c.code_prefix, c.code_suffix FROM " . dc_tbl_releases() . " r INNER JOIN " . dc_tbl_codes() ." c ON c.release = r.ID WHERE MD5(CONCAT('wp-dl-hash',c.ID)) = '" . $_GET['lease'] . "'" );

                // Get # of downloads with this code
                $downloads = $wpdb->get_row( "SELECT COUNT(*) AS downloads FROM " . dc_tbl_downloads() . " WHERE code= " . $release->code );

                // Start download if maximum of allowed downloads is not reached
                if ($downloads->downloads < $release->allowed_downloads) {
                        // Get current IP
                        $IP = $_SERVER['REMOTE_ADDR'];

                        // Insert download in downloads table
                        $wpdb->insert(  dc_tbl_downloads(),
                                                        array( 'code' => $release->code, 'IP' => $IP),
                                                        array( '%d', '%s') );

                        // Send headers for download
                        header("Pragma: public");
                        header("Expires: 0");
                        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
                        header("Content-Description: File Transfer");
                        header("Content-Type: application/force-download");
                        header("Content-Type: application/octet-stream");
                        header("Content-Type: application/download");
                        header("Content-Disposition: attachment; filename=\"" . $release->filename . "\"");
                        header("Content-Transfer-Encoding: binary");
                        header("Content-Length: ".filesize( dc_file_location() . $release->filename ));
                        flush();
                        ob_end_flush();

                        // Stream file
                        $handle = fopen( dc_file_location() . $release->filename, 'rb' );
                        $chunksize = 1*(1024*1024);
                        $buffer = '';
                        if ($handle === false) {
                                exit;
                        }
                        while (!feof($handle)) {
                                $buffer = fread($handle, $chunksize);
                                echo $buffer;
                                flush();
                        }

                        // Close file
                        fclose($handle);
                }
        }

@misanthrop

We are having the same problem. The .zip files all truncate to 12,583,259 bytes on download.

Perhaps there is an interaction with the new WordPress core update? I was looking at the changelog and the new version has some commits in areas that might affect the plugin. Maybe looking at a diff between 3.3.2 and 3.4.1 (we skipped 3.4.0) might help.